diff options
Diffstat (limited to 'newlib/libc')
112 files changed, 2259 insertions, 22200 deletions
diff --git a/newlib/libc/configure b/newlib/libc/configure index 4a1ab6b99..e2782a5f5 100755 --- a/newlib/libc/configure +++ b/newlib/libc/configure @@ -749,6 +749,8 @@ build newlib_basedir MAY_SUPPLY_SYSCALLS_FALSE MAY_SUPPLY_SYSCALLS_TRUE +NEWLIB_NANO_MALLOC_FALSE +NEWLIB_NANO_MALLOC_TRUE NEWLIB_WIDE_ORIENT_FALSE NEWLIB_WIDE_ORIENT_TRUE target_alias @@ -794,6 +796,7 @@ ac_user_opts=' enable_option_checking enable_newlib_io_pos_args enable_newlib_wide_orient +enable_newlib_nano_malloc enable_multilib enable_target_optspace enable_malloc_debugging @@ -1444,6 +1447,7 @@ Optional Features: --enable-FEATURE[=ARG] include FEATURE [ARG=yes] --enable-newlib-io-pos-args enable printf-family positional arg support --disable-newlib-wide-orient Turn off wide char orient in streamio + --enable-newlib-nano-malloc Use small-footprint nano-malloc implementation --enable-multilib build many library versions (default) --enable-target-optspace optimize for space --enable-malloc-debugging indicate malloc debugging requested @@ -2236,6 +2240,26 @@ else fi +# Check whether --enable-newlib_nano_malloc was given. +if test "${enable_newlib_nano_malloc+set}" = set; then : + enableval=$enable_newlib_nano_malloc; case "${enableval}" in + yes) newlib_nano_malloc=yes ;; + no) newlib_nano_malloc=no ;; + *) as_fn_error $? "bad value ${enableval} for newlib-nano-malloc" "$LINENO" 5 ;; + esac +else + newlib_nano_malloc=no +fi + + if test x$newlib_nano_malloc = xyes; then + NEWLIB_NANO_MALLOC_TRUE= + NEWLIB_NANO_MALLOC_FALSE='#' +else + NEWLIB_NANO_MALLOC_TRUE='#' + NEWLIB_NANO_MALLOC_FALSE= +fi + + # Make sure we can run config.sub. $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 || @@ -12213,6 +12237,14 @@ LIBOBJS=$ac_libobjs LTLIBOBJS=$ac_ltlibobjs +if test -z "${NEWLIB_WIDE_ORIENT_TRUE}" && test -z "${NEWLIB_WIDE_ORIENT_FALSE}"; then + as_fn_error $? "conditional \"NEWLIB_WIDE_ORIENT\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi +if test -z "${NEWLIB_NANO_MALLOC_TRUE}" && test -z "${NEWLIB_NANO_MALLOC_FALSE}"; then + as_fn_error $? "conditional \"NEWLIB_NANO_MALLOC\" was never defined. +Usually this means the macro was only invoked conditionally." "$LINENO" 5 +fi if test -z "${MAY_SUPPLY_SYSCALLS_TRUE}" && test -z "${MAY_SUPPLY_SYSCALLS_FALSE}"; then as_fn_error $? "conditional \"MAY_SUPPLY_SYSCALLS\" was never defined. Usually this means the macro was only invoked conditionally." "$LINENO" 5 diff --git a/newlib/libc/configure.in b/newlib/libc/configure.in index f262d7d45..d9df7c5f7 100644 --- a/newlib/libc/configure.in +++ b/newlib/libc/configure.in @@ -27,6 +27,16 @@ AC_ARG_ENABLE(newlib_wide_orient, esac],[newlib_wide_orient=yes]) AM_CONDITIONAL(NEWLIB_WIDE_ORIENT, test x$newlib_wide_orient = xyes) +dnl Support --enable-newlib-nano-malloc used by libc/stdlib +AC_ARG_ENABLE(newlib_nano_malloc, +[ --enable-newlib-nano-malloc Use small-footprint nano-malloc implementation], +[case "${enableval}" in + yes) newlib_nano_malloc=yes ;; + no) newlib_nano_malloc=no ;; + *) AC_MSG_ERROR(bad value ${enableval} for newlib-nano-malloc) ;; + esac],[newlib_nano_malloc=no]) +AM_CONDITIONAL(NEWLIB_NANO_MALLOC, test x$newlib_nano_malloc = xyes) + NEWLIB_CONFIGURE(..) dnl We have to enable libtool after NEWLIB_CONFIGURE because if we try and diff --git a/newlib/libc/ctype/ctype_.c b/newlib/libc/ctype/ctype_.c index c3615d2a1..164a8eed7 100644 --- a/newlib/libc/ctype/ctype_.c +++ b/newlib/libc/ctype/ctype_.c @@ -111,14 +111,21 @@ _CONST char __EXPORT *__ctype_ptr__ = (char *) _ctype_b + 127; # ifdef __CYGWIN__ - +# ifdef __x86_64__ +__asm__ (" \n\ + .data \n\ + .globl _ctype_ \n\ + .set _ctype_,_ctype_b+127 \n\ + .text \n\ +"); +# else __asm__ (" \n\ .data \n\ .globl __ctype_ \n\ .set __ctype_,__ctype_b+127 \n\ .text \n\ "); - +# endif # else /* !__CYGWIN__ */ _CONST char _ctype_[1 + 256] = { diff --git a/newlib/libc/ctype/isalnum.c b/newlib/libc/ctype/isalnum.c index 3fd5f9515..8bc2897c9 100644 --- a/newlib/libc/ctype/isalnum.c +++ b/newlib/libc/ctype/isalnum.c @@ -18,7 +18,7 @@ DESCRIPTION <<isalnum>> is a macro which classifies ASCII integer values by table lookup. It is a predicate returning non-zero for alphabetic or numeric ASCII characters, and <<0>> for other arguments. It is defined -for all integer values. +only if <[c]> is representable as an unsigned char or if <[c]> is EOF. You can use a compiled subroutine instead of the macro definition by undefining the macro using `<<#undef isalnum>>'. diff --git a/newlib/libc/ctype/isalpha.c b/newlib/libc/ctype/isalpha.c index a30ca9e19..d25a8fa27 100644 --- a/newlib/libc/ctype/isalpha.c +++ b/newlib/libc/ctype/isalpha.c @@ -16,8 +16,8 @@ TRAD_SYNOPSIS DESCRIPTION <<isalpha>> is a macro which classifies ASCII integer values by table lookup. It is a predicate returning non-zero when <[c]> represents an -alphabetic ASCII character, and 0 otherwise. It is defined only when -<<isascii>>(<[c]>) is true or <[c]> is EOF. +alphabetic ASCII character, and 0 otherwise. It is defined only if +<[c]> is representable as an unsigned char or if <[c]> is EOF. You can use a compiled subroutine instead of the macro definition by undefining the macro using `<<#undef isalpha>>'. diff --git a/newlib/libc/ctype/isblank.c b/newlib/libc/ctype/isblank.c index f4d38b95c..896a00768 100644 --- a/newlib/libc/ctype/isblank.c +++ b/newlib/libc/ctype/isblank.c @@ -17,7 +17,8 @@ TRAD_SYNOPSIS DESCRIPTION <<isblank>> is a function which classifies ASCII integer values by table lookup. It is a predicate returning non-zero for blank characters, and 0 -for other characters. +for other characters. It is defined only if <[c]> is representable as an +unsigned char or if <[c]> is EOF. RETURNS <<isblank>> returns non-zero if <[c]> is a blank character. diff --git a/newlib/libc/ctype/iscntrl.c b/newlib/libc/ctype/iscntrl.c index a4fdff178..76b0f55de 100644 --- a/newlib/libc/ctype/iscntrl.c +++ b/newlib/libc/ctype/iscntrl.c @@ -17,8 +17,8 @@ TRAD_SYNOPSIS DESCRIPTION <<iscntrl>> is a macro which classifies ASCII integer values by table lookup. It is a predicate returning non-zero for control characters, and 0 -for other characters. It is defined only when <<isascii>>(<[c]>) is -true or <[c]> is EOF. +for other characters. It is defined only if <[c]> is representable as an +unsigned char or if <[c]> is EOF. You can use a compiled subroutine instead of the macro definition by undefining the macro using `<<#undef iscntrl>>'. diff --git a/newlib/libc/ctype/isdigit.c b/newlib/libc/ctype/isdigit.c index 18383ee45..9db2700b7 100644 --- a/newlib/libc/ctype/isdigit.c +++ b/newlib/libc/ctype/isdigit.c @@ -16,8 +16,8 @@ int isdigit(<[c]>); DESCRIPTION <<isdigit>> is a macro which classifies ASCII integer values by table lookup. It is a predicate returning non-zero for decimal digits, and 0 for -other characters. It is defined only when <<isascii>>(<[c]>) is true -or <[c]> is EOF. +other characters. It is defined only if <[c]> is representable as an +unsigned char or if <[c]> is EOF. You can use a compiled subroutine instead of the macro definition by undefining the macro using `<<#undef isdigit>>'. diff --git a/newlib/libc/ctype/islower.c b/newlib/libc/ctype/islower.c index bef010b8b..ec4309610 100644 --- a/newlib/libc/ctype/islower.c +++ b/newlib/libc/ctype/islower.c @@ -18,7 +18,8 @@ DESCRIPTION <<islower>> is a macro which classifies ASCII integer values by table lookup. It is a predicate returning non-zero for minuscules (lowercase alphabetic characters), and 0 for other characters. -It is defined only when <<isascii>>(<[c]>) is true or <[c]> is EOF. +It is defined only if <[c]> is representable as an unsigned char or if +<[c]> is EOF. You can use a compiled subroutine instead of the macro definition by undefining the macro using `<<#undef islower>>'. diff --git a/newlib/libc/ctype/isprint.c b/newlib/libc/ctype/isprint.c index 2f317a291..b95aedd16 100644 --- a/newlib/libc/ctype/isprint.c +++ b/newlib/libc/ctype/isprint.c @@ -23,7 +23,8 @@ DESCRIPTION <<isprint>> is a macro which classifies ASCII integer values by table lookup. It is a predicate returning non-zero for printable characters, and 0 for other character arguments. -It is defined only when <<isascii>>(<[c]>) is true or <[c]> is EOF. +It is defined only if <[c]> is representable as an unsigned char or if +<[c]> is EOF. You can use a compiled subroutine instead of the macro definition by undefining either macro using `<<#undef isprint>>' or `<<#undef isgraph>>'. diff --git a/newlib/libc/ctype/ispunct.c b/newlib/libc/ctype/ispunct.c index 9b9c9c0bc..9ca674975 100644 --- a/newlib/libc/ctype/ispunct.c +++ b/newlib/libc/ctype/ispunct.c @@ -17,8 +17,8 @@ int ispunct(<[c]>); DESCRIPTION <<ispunct>> is a macro which classifies ASCII integer values by table lookup. It is a predicate returning non-zero for printable -punctuation characters, and 0 for other characters. It is defined -only when <<isascii>>(<[c]>) is true or <[c]> is EOF. +punctuation characters, and 0 for other characters. It is defined only +if <[c]> is representable as an unsigned char or if <[c]> is EOF. You can use a compiled subroutine instead of the macro definition by undefining the macro using `<<#undef ispunct>>'. diff --git a/newlib/libc/ctype/isxdigit.c b/newlib/libc/ctype/isxdigit.c index 9748eb4b5..314f74e7e 100644 --- a/newlib/libc/ctype/isxdigit.c +++ b/newlib/libc/ctype/isxdigit.c @@ -17,8 +17,8 @@ int isxdigit(int <[c]>); DESCRIPTION <<isxdigit>> is a macro which classifies ASCII integer values by table lookup. It is a predicate returning non-zero for hexadecimal digits, -and <<0>> for other characters. It is defined only when -<<isascii>>(<[c]>) is true or <[c]> is EOF. +and <<0>> for other characters. It is defined only if <[c]> is +representable as an unsigned char or if <[c]> is EOF. You can use a compiled subroutine instead of the macro definition by undefining the macro using `<<#undef isxdigit>>'. diff --git a/newlib/libc/include/machine/ieeefp.h b/newlib/libc/include/machine/ieeefp.h index f8795c072..dd1fceda9 100644 --- a/newlib/libc/include/machine/ieeefp.h +++ b/newlib/libc/include/machine/ieeefp.h @@ -359,6 +359,11 @@ #define __IEEE_BIG_ENDIAN #endif +#ifdef __MSP430__ +#define __IEEE_LITTLE_ENDIAN +#define __SMALL_BITFIELDS /* 16 Bit INT */ +#endif + #ifdef __RL78__ #define __IEEE_LITTLE_ENDIAN #define __SMALL_BITFIELDS /* 16 Bit INT */ @@ -388,6 +393,14 @@ #define __SMALL_BITFIELDS /* 16 Bit INT */ #endif +#ifdef __NIOS2__ +# ifdef __nios2_big_endian__ +# define __IEEE_BIG_ENDIAN +# else +# define __IEEE_LITTLE_ENDIAN +# endif +#endif + #ifndef __IEEE_BIG_ENDIAN #ifndef __IEEE_LITTLE_ENDIAN #error Endianess not declared!! diff --git a/newlib/libc/include/machine/setjmp.h b/newlib/libc/include/machine/setjmp.h index 31a8032d8..78fbdd78b 100644 --- a/newlib/libc/include/machine/setjmp.h +++ b/newlib/libc/include/machine/setjmp.h @@ -68,19 +68,24 @@ _BEGIN_STD_C #define _JBLEN 9 #endif -#if defined(__CYGWIN__) && !defined (_JBLEN) -#define _JBLEN (13 * 4) -#elif defined (__i386__) -#if defined(__unix__) || defined(__rtems__) -# define _JBLEN 9 -#else -#include "setjmp-dj.h" -#endif +#ifdef __i386__ +# if defined(__CYGWIN__) && !defined (_JBLEN) +# define _JBLEN (13 * 4) +# elif defined(__unix__) || defined(__rtems__) +# define _JBLEN 9 +# else +# include "setjmp-dj.h" +# endif #endif #ifdef __x86_64__ -#define _JBTYPE long long -#define _JBLEN 8 +# ifdef __CYGWIN__ +# define _JBTYPE long +# define _JBLEN 32 +# else +# define _JBTYPE long long +# define _JBLEN 8 +# endif #endif #ifdef __i960__ @@ -276,12 +281,40 @@ _BEGIN_STD_C #define _JBTYPE unsigned short #endif /* __m32c__ */ +#ifdef __MSP430__ +#define _JBLEN 9 + +#ifdef __MSP430X_LARGE__ +#define _JBTYPE unsigned long +#else +#define _JBTYPE unsigned short +#endif +#endif + #ifdef __RL78__ /* Three banks of registers, SP, CS, ES, PC */ #define _JBLEN (8*3+8) #define _JBTYPE unsigned char #endif +/* + * There are two versions of setjmp()/longjmp(): + * 1) Compiler (gcc) built-in versions. + * 2) Function-call versions. + * + * The built-in versions are used most of the time. When used, gcc replaces + * calls to setjmp()/longjmp() with inline assembly code. The built-in + * versions save/restore a variable number of registers. + + * _JBLEN is set to 40 to be ultra-safe with the built-in versions. + * It only needs to be 12 for the function-call versions + * but this data structure is used by both versions. + */ +#ifdef __NIOS2__ +#define _JBLEN 40 +#define _JBTYPE unsigned long +#endif + #ifdef __RX__ #define _JBLEN 0x44 #endif diff --git a/newlib/libc/include/reent.h b/newlib/libc/include/reent.h index 4617c0d96..861be71d3 100644 --- a/newlib/libc/include/reent.h +++ b/newlib/libc/include/reent.h @@ -163,16 +163,22 @@ extern int _gettimeofday_r _PARAMS ((struct _reent *, struct timeval *__tp, void #ifdef __LARGE64_FILES -#if defined(__CYGWIN__) && defined(_COMPILING_NEWLIB) -#define stat64 __stat64 -#endif +#if defined(__CYGWIN__) +#define stat64 stat +#endif struct stat64; extern _off64_t _lseek64_r _PARAMS ((struct _reent *, int, _off64_t, int)); extern int _fstat64_r _PARAMS ((struct _reent *, int, struct stat64 *)); extern int _open64_r _PARAMS ((struct _reent *, const char *, int, int)); extern int _stat64_r _PARAMS ((struct _reent *, const char *, struct stat64 *)); + +/* Don't pollute namespace if not building newlib. */ +#if defined (__CYGWIN__) && !defined (_COMPILING_NEWLIB) +#undef stat64 +#endif + #endif #endif diff --git a/newlib/libc/include/sys/cdefs.h b/newlib/libc/include/sys/cdefs.h index beeea3251..5f0922c7a 100644 --- a/newlib/libc/include/sys/cdefs.h +++ b/newlib/libc/include/sys/cdefs.h @@ -267,7 +267,9 @@ #define _Alignof(x) __alignof(x) #define _Noreturn __dead2 #define _Thread_local __thread -#ifdef __COUNTER__ +#if __GNUC_PREREQ__(4, 6) && !defined(__cplusplus) +/* Do nothing: _Static_assert() works as per C11 */ +#elif defined(__COUNTER__) #define _Static_assert(x, y) __Static_assert(x, __COUNTER__) #define __Static_assert(x, y) ___Static_assert(x, y) #define ___Static_assert(x, y) typedef char __assert_ ## y[(x) ? 1 : -1] diff --git a/newlib/libc/include/sys/config.h b/newlib/libc/include/sys/config.h index a6528b832..a641c4b29 100644 --- a/newlib/libc/include/sys/config.h +++ b/newlib/libc/include/sys/config.h @@ -145,6 +145,21 @@ #define __BUFSIZ__ 16 #define _REENT_SMALL #endif + +#if defined __MSP430__ +#ifndef _REENT_SMALL +#define _REENT_SMALL +#endif + +#define __SMALL_BITFIELDS + +#ifdef __MSP430X_LARGE__ +#define _POINTER_INT long +#else +#define _POINTER_INT int +#endif +#endif + #ifdef __m32c__ #define __SMALL_BITFIELDS #undef INT_MAX @@ -217,6 +232,7 @@ #if defined(__rtems__) #define __FILENAME_MAX__ 255 #define _READ_WRITE_RETURN_TYPE _ssize_t +#define _REENT_GLOBAL_ATEXIT #endif #ifndef __EXPORT diff --git a/newlib/libc/include/sys/features.h b/newlib/libc/include/sys/features.h index b5e003b5f..a3ba513bf 100644 --- a/newlib/libc/include/sys/features.h +++ b/newlib/libc/include/sys/features.h @@ -173,12 +173,18 @@ extern "C" { #define _POSIX2_SW_DEV 200112L #define _POSIX2_UPE 200112L #define _POSIX_V6_ILP32_OFF32 -1 -#define _XBS5_ILP32_OFF32 _POSIX_V6_ILP32_OFF32 +#ifdef __LP64__ +#define _POSIX_V6_ILP32_OFFBIG -1 +#define _POSIX_V6_LP64_OFF64 1 +#define _POSIX_V6_LPBIG_OFFBIG 1 +#else #define _POSIX_V6_ILP32_OFFBIG 1 -#define _XBS5_ILP32_OFFBIG _POSIX_V6_ILP32_OFFBIG #define _POSIX_V6_LP64_OFF64 -1 -#define _XBS5_LP64_OFF64 _POSIX_V6_LP64_OFF64 #define _POSIX_V6_LPBIG_OFFBIG -1 +#endif +#define _XBS5_ILP32_OFF32 _POSIX_V6_ILP32_OFF32 +#define _XBS5_ILP32_OFFBIG _POSIX_V6_ILP32_OFFBIG +#define _XBS5_LP64_OFF64 _POSIX_V6_LP64_OFF64 #define _XBS5_LPBIG_OFFBIG _POSIX_V6_LPBIG_OFFBIG #define _XOPEN_CRYPT 1 #define _XOPEN_ENH_I18N 1 diff --git a/newlib/libc/include/sys/reent.h b/newlib/libc/include/sys/reent.h index 7e321e053..21f02cc61 100644 --- a/newlib/libc/include/sys/reent.h +++ b/newlib/libc/include/sys/reent.h @@ -85,6 +85,12 @@ struct _atexit { void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ struct _on_exit_args * _on_exit_args_ptr; }; +# define _ATEXIT_INIT {_NULL, 0, {_NULL}, _NULL} +# define _ATEXIT_INIT_PTR(var) \ + (var)->_next = _NULL; \ + (var)->_ind = 0; \ + (var)->_fns[0] = _NULL; \ + (var)->_on_exit_args_ptr = _NULL #else struct _atexit { struct _atexit *_next; /* next in list */ @@ -93,6 +99,23 @@ struct _atexit { void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ struct _on_exit_args _on_exit_args; }; +# define _ATEXIT_INIT {_NULL, 0, {_NULL}, {{_NULL}, {_NULL}, 0, 0}} +# define _ATEXIT_INIT_PTR(var) \ + (var)->_next = _NULL; \ + (var)->_ind = 0; \ + (var)->_fns[0] = _NULL; \ + (var)->_on_exit_args._fntypes = 0; \ + (var)->_on_exit_args._fnargs[0] = _NULL +#endif + +#ifdef _REENT_GLOBAL_ATEXIT +# define _REENT_INIT_ATEXIT +# define _REENT_INIT_ATEXIT_PTR(var, var0) +#else +# define _REENT_INIT_ATEXIT \ + _NULL, _ATEXIT_INIT, +# define _REENT_INIT_ATEXIT_PTR(var, var0) \ + (var)->_atexit = _NULL; _ATEXIT_INIT_PTR(var0); #endif /* @@ -392,9 +415,11 @@ struct _reent /* signal info */ void (**(_sig_func))(int); +# ifndef _REENT_GLOBAL_ATEXIT /* atexit stuff */ struct _atexit *_atexit; struct _atexit _atexit0; +# endif struct _glue __sglue; /* root of glue chain */ __FILE *__sf; /* file descriptors */ @@ -425,8 +450,7 @@ extern const struct __sFILE_fake __sf_fake_stderr; _NULL, \ _NULL, \ _NULL, \ - _NULL, \ - {_NULL, 0, {_NULL}, _NULL}, \ + _REENT_INIT_ATEXIT \ {_NULL, 0, _NULL}, \ _NULL, \ _NULL, \ @@ -452,11 +476,7 @@ extern const struct __sFILE_fake __sf_fake_stderr; (var)->_localtime_buf = _NULL; \ (var)->_asctime_buf = _NULL; \ (var)->_sig_func = _NULL; \ - (var)->_atexit = _NULL; \ - (var)->_atexit0._next = _NULL; \ - (var)->_atexit0._ind = 0; \ - (var)->_atexit0._fns[0] = _NULL; \ - (var)->_atexit0._on_exit_args_ptr = _NULL; \ + _REENT_INIT_ATEXIT_PTR(var, &(var)->_atexit0) \ (var)->__sglue._next = _NULL; \ (var)->__sglue._niobs = 0; \ (var)->__sglue._iobs = _NULL; \ @@ -641,9 +661,11 @@ struct _reent } _unused; } _new; +# ifndef _REENT_GLOBAL_ATEXIT /* atexit stuff */ struct _atexit *_atexit; /* points to head of LIFO stack */ struct _atexit _atexit0; /* one guaranteed table, required by ANSI */ +# endif /* signal info */ void (**(_sig_func))(int); @@ -698,34 +720,17 @@ struct _reent {0, {0}} \ } \ }, \ - _NULL, \ - {_NULL, 0, {_NULL}, {{_NULL}, {_NULL}, 0, 0}}, \ + _REENT_INIT_ATEXIT \ _NULL, \ {_NULL, 0, _NULL} \ } #define _REENT_INIT_PTR(var) \ - { (var)->_errno = 0; \ + { memset((var), 0, sizeof(*(var))); \ (var)->_stdin = &(var)->__sf[0]; \ (var)->_stdout = &(var)->__sf[1]; \ (var)->_stderr = &(var)->__sf[2]; \ - (var)->_inc = 0; \ - memset(&(var)->_emergency, 0, sizeof((var)->_emergency)); \ - (var)->_current_category = 0; \ (var)->_current_locale = "C"; \ - (var)->__sdidinit = 0; \ - (var)->__cleanup = _NULL; \ - (var)->_result = _NULL; \ - (var)->_result_k = 0; \ - (var)->_p5s = _NULL; \ - (var)->_freelist = _NULL; \ - (var)->_cvtlen = 0; \ - (var)->_cvtbuf = _NULL; \ - (var)->_new._reent._unused_rand = 0; \ - (var)->_new._reent._strtok_last = _NULL; \ - (var)->_new._reent._asctime_buf[0] = 0; \ - memset(&(var)->_new._reent._localtime_buf, 0, sizeof((var)->_new._reent._localtime_buf)); \ - (var)->_new._reent._gamma_signgam = 0; \ (var)->_new._reent._rand_next = 1; \ (var)->_new._reent._r48._seed[0] = _RAND48_SEED_0; \ (var)->_new._reent._r48._seed[1] = _RAND48_SEED_1; \ @@ -734,36 +739,6 @@ struct _reent (var)->_new._reent._r48._mult[1] = _RAND48_MULT_1; \ (var)->_new._reent._r48._mult[2] = _RAND48_MULT_2; \ (var)->_new._reent._r48._add = _RAND48_ADD; \ - (var)->_new._reent._mblen_state.__count = 0; \ - (var)->_new._reent._mblen_state.__value.__wch = 0; \ - (var)->_new._reent._mbtowc_state.__count = 0; \ - (var)->_new._reent._mbtowc_state.__value.__wch = 0; \ - (var)->_new._reent._wctomb_state.__count = 0; \ - (var)->_new._reent._wctomb_state.__value.__wch = 0; \ - (var)->_new._reent._mbrlen_state.__count = 0; \ - (var)->_new._reent._mbrlen_state.__value.__wch = 0; \ - (var)->_new._reent._mbrtowc_state.__count = 0; \ - (var)->_new._reent._mbrtowc_state.__value.__wch = 0; \ - (var)->_new._reent._mbsrtowcs_state.__count = 0; \ - (var)->_new._reent._mbsrtowcs_state.__value.__wch = 0; \ - (var)->_new._reent._wcrtomb_state.__count = 0; \ - (var)->_new._reent._wcrtomb_state.__value.__wch = 0; \ - (var)->_new._reent._wcsrtombs_state.__count = 0; \ - (var)->_new._reent._wcsrtombs_state.__value.__wch = 0; \ - (var)->_new._reent._l64a_buf[0] = '\0'; \ - (var)->_new._reent._signal_buf[0] = '\0'; \ - (var)->_new._reent._getdate_err = 0; \ - (var)->_atexit = _NULL; \ - (var)->_atexit0._next = _NULL; \ - (var)->_atexit0._ind = 0; \ - (var)->_atexit0._fns[0] = _NULL; \ - (var)->_atexit0._on_exit_args._fntypes = 0; \ - (var)->_atexit0._on_exit_args._fnargs[0] = _NULL; \ - (var)->_sig_func = _NULL; \ - (var)->__sglue._next = _NULL; \ - (var)->__sglue._niobs = 0; \ - (var)->__sglue._iobs = _NULL; \ - memset(&(var)->__sf, 0, sizeof((var)->__sf)); \ } #define _REENT_CHECK_RAND48(ptr) /* nothing */ @@ -837,6 +812,13 @@ void _reclaim_reent _PARAMS ((struct _reent *)); #define _GLOBAL_REENT _global_impure_ptr +#ifdef _REENT_GLOBAL_ATEXIT +extern struct _atexit *_global_atexit; /* points to head of LIFO stack */ +# define _GLOBAL_ATEXIT _global_atexit +#else +# define _GLOBAL_ATEXIT (_GLOBAL_REENT->_atexit) +#endif + #ifdef __cplusplus } #endif diff --git a/newlib/libc/include/sys/stat.h b/newlib/libc/include/sys/stat.h index fa2036dd3..937bcacd2 100644 --- a/newlib/libc/include/sys/stat.h +++ b/newlib/libc/include/sys/stat.h @@ -19,7 +19,7 @@ extern "C" { #ifdef __CYGWIN__ #include <cygwin/stat.h> #ifdef _COMPILING_NEWLIB -#define stat64 __stat64 +#define stat64 stat #endif #else struct stat diff --git a/newlib/libc/libc.texinfo b/newlib/libc/libc.texinfo index b75d57773..74d448d88 100644 --- a/newlib/libc/libc.texinfo +++ b/newlib/libc/libc.texinfo @@ -429,7 +429,7 @@ usage as the ANSI C version from @file{stdarg.h}. @printindex cp @tex -% I think something like @colophon should be in texinfo. In the +% I think something like @@colophon should be in texinfo. In the % meantime: \long\def\colophon{\hbox to0pt{}\vfill \centerline{The body of this manual is set in} @@ -440,7 +440,7 @@ usage as the ANSI C version from @file{stdarg.h}. \centerline{{\sl\fontname\tensl\/}} \centerline{are used for emphasis.}\vfill} \page\colophon -% Blame: pesch@cygnus.com, 28mar91. +% Blame: pesch@@cygnus.com, 28mar91. @end tex @contents diff --git a/newlib/libc/machine/aarch64/Makefile.am b/newlib/libc/machine/aarch64/Makefile.am deleted file mode 100644 index 2a810e253..000000000 --- a/newlib/libc/machine/aarch64/Makefile.am +++ /dev/null @@ -1,34 +0,0 @@ -## Process this file with automake to generate Makefile.in - -AUTOMAKE_OPTIONS = cygnus - -INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS) - -AM_CCASFLAGS = $(INCLUDES) - -noinst_LIBRARIES = lib.a - -lib_a_SOURCES = -lib_a_SOURCES += memcmp-stub.c -lib_a_SOURCES += memcmp.S -lib_a_SOURCES += memcpy-stub.c -lib_a_SOURCES += memcpy.S -lib_a_SOURCES += memmove-stub.c -lib_a_SOURCES += memmove.S -lib_a_SOURCES += memset-stub.c -lib_a_SOURCES += memset.S -lib_a_SOURCES += setjmp.S -lib_a_SOURCES += strcmp-stub.c -lib_a_SOURCES += strcmp.S -lib_a_SOURCES += strlen-stub.c -lib_a_SOURCES += strlen.S -lib_a_SOURCES += strncmp-stub.c -lib_a_SOURCES += strncmp.S -lib_a_SOURCES += strnlen-stub.c -lib_a_SOURCES += strnlen.S - -lib_a_CCASFLAGS=$(AM_CCASFLAGS) -lib_a_CFLAGS=$(AM_CFLAGS) - -ACLOCAL_AMFLAGS = -I ../../.. -I ../../../.. -CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host diff --git a/newlib/libc/machine/aarch64/Makefile.in b/newlib/libc/machine/aarch64/Makefile.in deleted file mode 100644 index 6e568858e..000000000 --- a/newlib/libc/machine/aarch64/Makefile.in +++ /dev/null @@ -1,553 +0,0 @@ -# Makefile.in generated by automake 1.11.6 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, -# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software -# Foundation, Inc. -# This Makefile.in is free software; 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When coming back to configure, we -# need to make the FD available again. -if test "$no_create" != yes; then - ac_cs_success=: - ac_config_status_args= - test "$silent" = yes && - ac_config_status_args="$ac_config_status_args --quiet" - exec 5>/dev/null - $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false - exec 5>>config.log - # Use ||, not &&, to avoid exiting from the if with $? = 1, which - # would make configure fail if this is the last instruction. - $ac_cs_success || as_fn_exit 1 -fi -if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then - { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 -$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} -fi - diff --git a/newlib/libc/machine/aarch64/configure.in b/newlib/libc/machine/aarch64/configure.in deleted file mode 100644 index 25415c804..000000000 --- a/newlib/libc/machine/aarch64/configure.in +++ /dev/null @@ -1,14 +0,0 @@ -dnl This is the newlib/libc/machine/aarch64 configure.in file. -dnl Process this file with autoconf to produce a configure script. - -AC_PREREQ(2.59) -AC_INIT([newlib],[NEWLIB_VERSION]) -AC_CONFIG_SRCDIR([setjmp.S]) - -dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake. -AC_CONFIG_AUX_DIR(../../../..) - -NEWLIB_CONFIGURE(../../..) - -AC_CONFIG_FILES([Makefile]) -AC_OUTPUT diff --git a/newlib/libc/machine/aarch64/memcmp-stub.c b/newlib/libc/machine/aarch64/memcmp-stub.c deleted file mode 100644 index a4e4876c3..000000000 --- a/newlib/libc/machine/aarch64/memcmp-stub.c +++ /dev/null @@ -1,31 +0,0 @@ -/* Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -# include "../../string/memcmp.c" -#else -/* See memcmp.S */ -#endif diff --git a/newlib/libc/machine/aarch64/memcmp.S b/newlib/libc/machine/aarch64/memcmp.S deleted file mode 100644 index 860384cc8..000000000 --- a/newlib/libc/machine/aarch64/memcmp.S +++ /dev/null @@ -1,167 +0,0 @@ -/* memcmp - compare memory - - Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -/* See memcmp-stub.c */ -#else -/* Assumptions: - * - * ARMv8-a, AArch64 - */ - - .macro def_fn f p2align=0 - .text - .p2align \p2align - .global \f - .type \f, %function -\f: - .endm - -/* Parameters and result. */ -#define src1 x0 -#define src2 x1 -#define limit x2 -#define result x0 - -/* Internal variables. */ -#define data1 x3 -#define data1w w3 -#define data2 x4 -#define data2w w4 -#define has_nul x5 -#define diff x6 -#define endloop x7 -#define tmp1 x8 -#define tmp2 x9 -#define tmp3 x10 -#define pos x11 -#define limit_wd x12 -#define mask x13 - -def_fn memcmp p2align=6 - cbz limit, .Lret0 - eor tmp1, src1, src2 - tst tmp1, #7 - b.ne .Lmisaligned8 - ands tmp1, src1, #7 - b.ne .Lmutual_align - add limit_wd, limit, #7 - lsr limit_wd, limit_wd, #3 - /* Start of performance-critical section -- one 64B cache line. */ -.Lloop_aligned: - ldr data1, [src1], #8 - ldr data2, [src2], #8 -.Lstart_realigned: - subs limit_wd, limit_wd, #1 - eor diff, data1, data2 /* Non-zero if differences found. */ - csinv endloop, diff, xzr, ne /* Last Dword or differences. */ - cbz endloop, .Lloop_aligned - /* End of performance-critical section -- one 64B cache line. */ - - /* Not reached the limit, must have found a diff. */ - cbnz limit_wd, .Lnot_limit - - /* Limit % 8 == 0 => all bytes significant. */ - ands limit, limit, #7 - b.eq .Lnot_limit - - lsl limit, limit, #3 /* Bits -> bytes. */ - mov mask, #~0 -#ifdef __AARCH64EB__ - lsr mask, mask, limit -#else - lsl mask, mask, limit -#endif - bic data1, data1, mask - bic data2, data2, mask - - orr diff, diff, mask -.Lnot_limit: - -#ifndef __AARCH64EB__ - rev diff, diff - rev data1, data1 - rev data2, data2 -#endif - /* The MS-non-zero bit of DIFF marks either the first bit - that is different, or the end of the significant data. - Shifting left now will bring the critical information into the - top bits. */ - clz pos, diff - lsl data1, data1, pos - lsl data2, data2, pos - /* But we need to zero-extend (char is unsigned) the value and then - perform a signed 32-bit subtraction. */ - lsr data1, data1, #56 - sub result, data1, data2, lsr #56 - ret - -.Lmutual_align: - /* Sources are mutually aligned, but are not currently at an - alignment boundary. Round down the addresses and then mask off - the bytes that precede the start point. */ - bic src1, src1, #7 - bic src2, src2, #7 - add limit, limit, tmp1 /* Adjust the limit for the extra. */ - lsl tmp1, tmp1, #3 /* Bytes beyond alignment -> bits. */ - ldr data1, [src1], #8 - neg tmp1, tmp1 /* Bits to alignment -64. */ - ldr data2, [src2], #8 - mov tmp2, #~0 -#ifdef __AARCH64EB__ - /* Big-endian. Early bytes are at MSB. */ - lsl tmp2, tmp2, tmp1 /* Shift (tmp1 & 63). */ -#else - /* Little-endian. Early bytes are at LSB. */ - lsr tmp2, tmp2, tmp1 /* Shift (tmp1 & 63). */ -#endif - add limit_wd, limit, #7 - orr data1, data1, tmp2 - orr data2, data2, tmp2 - lsr limit_wd, limit_wd, #3 - b .Lstart_realigned - -.Lret0: - mov result, #0 - ret - - .p2align 6 -.Lmisaligned8: - sub limit, limit, #1 -1: - /* Perhaps we can do better than this. */ - ldrb data1w, [src1], #1 - ldrb data2w, [src2], #1 - subs limit, limit, #1 - ccmp data1w, data2w, #0, cs /* NZCV = 0b0000. */ - b.eq 1b - sub result, data1, data2 - ret - .size memcmp, . - memcmp - -#endif
\ No newline at end of file diff --git a/newlib/libc/machine/aarch64/memcpy-stub.c b/newlib/libc/machine/aarch64/memcpy-stub.c deleted file mode 100644 index cd6d72a8b..000000000 --- a/newlib/libc/machine/aarch64/memcpy-stub.c +++ /dev/null @@ -1,31 +0,0 @@ -/* Copyright (c) 2012-2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -# include "../../string/memcpy.c" -#else -/* See memcpy.S */ -#endif diff --git a/newlib/libc/machine/aarch64/memcpy.S b/newlib/libc/machine/aarch64/memcpy.S deleted file mode 100644 index ef5c3a999..000000000 --- a/newlib/libc/machine/aarch64/memcpy.S +++ /dev/null @@ -1,195 +0,0 @@ -/* Copyright (c) 2012-2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -/* Assumptions: - * - * ARMv8-a, AArch64 - * Unaligned accesses - * - */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -/* See memcpy-stub.c */ -#else - -#define dstin x0 -#define src x1 -#define count x2 -#define tmp1 x3 -#define tmp1w w3 -#define tmp2 x4 -#define tmp2w w4 -#define tmp3 x5 -#define tmp3w w5 -#define dst x6 - -#define A_l x7 -#define A_h x8 -#define B_l x9 -#define B_h x10 -#define C_l x11 -#define C_h x12 -#define D_l x13 -#define D_h x14 - - .macro def_fn f p2align=0 - .text - .p2align \p2align - .global \f - .type \f, %function -\f: - .endm - -def_fn memcpy p2align=6 - - mov dst, dstin - cmp count, #64 - b.ge .Lcpy_not_short - cmp count, #15 - b.le .Ltail15tiny - - /* Deal with small copies quickly by dropping straight into the - * exit block. */ -.Ltail63: - /* Copy up to 48 bytes of data. At this point we only need the - * bottom 6 bits of count to be accurate. */ - ands tmp1, count, #0x30 - b.eq .Ltail15 - add dst, dst, tmp1 - add src, src, tmp1 - cmp tmp1w, #0x20 - b.eq 1f - b.lt 2f - ldp A_l, A_h, [src, #-48] - stp A_l, A_h, [dst, #-48] -1: - ldp A_l, A_h, [src, #-32] - stp A_l, A_h, [dst, #-32] -2: - ldp A_l, A_h, [src, #-16] - stp A_l, A_h, [dst, #-16] - -.Ltail15: - ands count, count, #15 - beq 1f - add src, src, count - ldp A_l, A_h, [src, #-16] - add dst, dst, count - stp A_l, A_h, [dst, #-16] -1: - ret - -.Ltail15tiny: - /* Copy up to 15 bytes of data. Does not assume additional data - being copied. */ - tbz count, #3, 1f - ldr tmp1, [src], #8 - str tmp1, [dst], #8 -1: - tbz count, #2, 1f - ldr tmp1w, [src], #4 - str tmp1w, [dst], #4 -1: - tbz count, #1, 1f - ldrh tmp1w, [src], #2 - strh tmp1w, [dst], #2 -1: - tbz count, #0, 1f - ldrb tmp1w, [src] - strb tmp1w, [dst] -1: - ret - -.Lcpy_not_short: - /* We don't much care about the alignment of DST, but we want SRC - * to be 128-bit (16 byte) aligned so that we don't cross cache line - * boundaries on both loads and stores. */ - neg tmp2, src - ands tmp2, tmp2, #15 /* Bytes to reach alignment. */ - b.eq 2f - sub count, count, tmp2 - /* Copy more data than needed; it's faster than jumping - * around copying sub-Quadword quantities. We know that - * it can't overrun. */ - ldp A_l, A_h, [src] - add src, src, tmp2 - stp A_l, A_h, [dst] - add dst, dst, tmp2 - /* There may be less than 63 bytes to go now. */ - cmp count, #63 - b.le .Ltail63 -2: - subs count, count, #128 - b.ge .Lcpy_body_large - /* Less than 128 bytes to copy, so handle 64 here and then jump - * to the tail. */ - ldp A_l, A_h, [src] - ldp B_l, B_h, [src, #16] - ldp C_l, C_h, [src, #32] - ldp D_l, D_h, [src, #48] - stp A_l, A_h, [dst] - stp B_l, B_h, [dst, #16] - stp C_l, C_h, [dst, #32] - stp D_l, D_h, [dst, #48] - tst count, #0x3f - add src, src, #64 - add dst, dst, #64 - b.ne .Ltail63 - ret - - /* Critical loop. Start at a new cache line boundary. Assuming - * 64 bytes per line this ensures the entire loop is in one line. */ - .p2align 6 -.Lcpy_body_large: - /* There are at least 128 bytes to copy. */ - ldp A_l, A_h, [src, #0] - sub dst, dst, #16 /* Pre-bias. */ - ldp B_l, B_h, [src, #16] - ldp C_l, C_h, [src, #32] - ldp D_l, D_h, [src, #48]! /* src += 64 - Pre-bias. */ -1: - stp A_l, A_h, [dst, #16] - ldp A_l, A_h, [src, #16] - stp B_l, B_h, [dst, #32] - ldp B_l, B_h, [src, #32] - stp C_l, C_h, [dst, #48] - ldp C_l, C_h, [src, #48] - stp D_l, D_h, [dst, #64]! - ldp D_l, D_h, [src, #64]! - subs count, count, #64 - b.ge 1b - stp A_l, A_h, [dst, #16] - stp B_l, B_h, [dst, #32] - stp C_l, C_h, [dst, #48] - stp D_l, D_h, [dst, #64] - add src, src, #16 - add dst, dst, #64 + 16 - tst count, #0x3f - b.ne .Ltail63 - ret - .size memcpy, .-memcpy - -#endif diff --git a/newlib/libc/machine/aarch64/memmove-stub.c b/newlib/libc/machine/aarch64/memmove-stub.c deleted file mode 100644 index 8fa4ab938..000000000 --- a/newlib/libc/machine/aarch64/memmove-stub.c +++ /dev/null @@ -1,31 +0,0 @@ -/* Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -# include "../../string/memmove.c" -#else -/* See memmove.S */ -#endif diff --git a/newlib/libc/machine/aarch64/memmove.S b/newlib/libc/machine/aarch64/memmove.S deleted file mode 100644 index 8cb91f099..000000000 --- a/newlib/libc/machine/aarch64/memmove.S +++ /dev/null @@ -1,329 +0,0 @@ -/* Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -/* See memmove-stub.c */ -#else - -/* Assumptions: - * - * ARMv8-a, AArch64 - * Unaligned accesses - */ - - .macro def_fn f p2align=0 - .text - .p2align \p2align - .global \f - .type \f, %function -\f: - .endm - -/* Parameters and result. */ -#define dstin x0 -#define src x1 -#define count x2 -#define tmp1 x3 -#define tmp1w w3 -#define tmp2 x4 -#define tmp2w w4 -#define tmp3 x5 -#define tmp3w w5 -#define dst x6 - -#define A_l x7 -#define A_h x8 -#define B_l x9 -#define B_h x10 -#define C_l x11 -#define C_h x12 -#define D_l x13 -#define D_h x14 - -def_fn memmove, 6 - cmp dstin, src - b.lo .Ldownwards - add tmp1, src, count - cmp dstin, tmp1 - b.hs memcpy /* No overlap. */ - - /* Upwards move with potential overlap. - * Need to move from the tail backwards. SRC and DST point one - * byte beyond the remaining data to move. */ - add dst, dstin, count - add src, src, count - cmp count, #64 - b.ge .Lmov_not_short_up - - /* Deal with small moves quickly by dropping straight into the - * exit block. */ -.Ltail63up: - /* Move up to 48 bytes of data. At this point we only need the - * bottom 6 bits of count to be accurate. */ - ands tmp1, count, #0x30 - b.eq .Ltail15up - sub dst, dst, tmp1 - sub src, src, tmp1 - cmp tmp1w, #0x20 - b.eq 1f - b.lt 2f - ldp A_l, A_h, [src, #32] - stp A_l, A_h, [dst, #32] -1: - ldp A_l, A_h, [src, #16] - stp A_l, A_h, [dst, #16] -2: - ldp A_l, A_h, [src] - stp A_l, A_h, [dst] -.Ltail15up: - /* Move up to 15 bytes of data. Does not assume additional data - * being moved. */ - tbz count, #3, 1f - ldr tmp1, [src, #-8]! - str tmp1, [dst, #-8]! -1: - tbz count, #2, 1f - ldr tmp1w, [src, #-4]! - str tmp1w, [dst, #-4]! -1: - tbz count, #1, 1f - ldrh tmp1w, [src, #-2]! - strh tmp1w, [dst, #-2]! -1: - tbz count, #0, 1f - ldrb tmp1w, [src, #-1] - strb tmp1w, [dst, #-1] -1: - ret - -.Lmov_not_short_up: - /* We don't much care about the alignment of DST, but we want SRC - * to be 128-bit (16 byte) aligned so that we don't cross cache line - * boundaries on both loads and stores. */ - ands tmp2, src, #15 /* Bytes to reach alignment. */ - b.eq 2f - sub count, count, tmp2 - /* Move enough data to reach alignment; unlike memcpy, we have to - * be aware of the overlap, which means we can't move data twice. */ - tbz tmp2, #3, 1f - ldr tmp1, [src, #-8]! - str tmp1, [dst, #-8]! -1: - tbz tmp2, #2, 1f - ldr tmp1w, [src, #-4]! - str tmp1w, [dst, #-4]! -1: - tbz tmp2, #1, 1f - ldrh tmp1w, [src, #-2]! - strh tmp1w, [dst, #-2]! -1: - tbz tmp2, #0, 1f - ldrb tmp1w, [src, #-1]! - strb tmp1w, [dst, #-1]! -1: - - /* There may be less than 63 bytes to go now. */ - cmp count, #63 - b.le .Ltail63up -2: - subs count, count, #128 - b.ge .Lmov_body_large_up - /* Less than 128 bytes to move, so handle 64 here and then jump - * to the tail. */ - ldp A_l, A_h, [src, #-64]! - ldp B_l, B_h, [src, #16] - ldp C_l, C_h, [src, #32] - ldp D_l, D_h, [src, #48] - stp A_l, A_h, [dst, #-64]! - stp B_l, B_h, [dst, #16] - stp C_l, C_h, [dst, #32] - stp D_l, D_h, [dst, #48] - tst count, #0x3f - b.ne .Ltail63up - ret - - /* Critical loop. Start at a new Icache line boundary. Assuming - * 64 bytes per line this ensures the entire loop is in one line. */ - .p2align 6 -.Lmov_body_large_up: - /* There are at least 128 bytes to move. */ - ldp A_l, A_h, [src, #-16] - ldp B_l, B_h, [src, #-32] - ldp C_l, C_h, [src, #-48] - ldp D_l, D_h, [src, #-64]! -1: - stp A_l, A_h, [dst, #-16] - ldp A_l, A_h, [src, #-16] - stp B_l, B_h, [dst, #-32] - ldp B_l, B_h, [src, #-32] - stp C_l, C_h, [dst, #-48] - ldp C_l, C_h, [src, #-48] - stp D_l, D_h, [dst, #-64]! - ldp D_l, D_h, [src, #-64]! - subs count, count, #64 - b.ge 1b - stp A_l, A_h, [dst, #-16] - stp B_l, B_h, [dst, #-32] - stp C_l, C_h, [dst, #-48] - stp D_l, D_h, [dst, #-64]! - tst count, #0x3f - b.ne .Ltail63up - ret - - -.Ldownwards: - /* For a downwards move we can safely use memcpy provided that - * DST is more than 16 bytes away from SRC. */ - sub tmp1, src, #16 - cmp dstin, tmp1 - b.ls memcpy /* May overlap, but not critically. */ - - mov dst, dstin /* Preserve DSTIN for return value. */ - cmp count, #64 - b.ge .Lmov_not_short_down - - /* Deal with small moves quickly by dropping straight into the - * exit block. */ -.Ltail63down: - /* Move up to 48 bytes of data. At this point we only need the - * bottom 6 bits of count to be accurate. */ - ands tmp1, count, #0x30 - b.eq .Ltail15down - add dst, dst, tmp1 - add src, src, tmp1 - cmp tmp1w, #0x20 - b.eq 1f - b.lt 2f - ldp A_l, A_h, [src, #-48] - stp A_l, A_h, [dst, #-48] -1: - ldp A_l, A_h, [src, #-32] - stp A_l, A_h, [dst, #-32] -2: - ldp A_l, A_h, [src, #-16] - stp A_l, A_h, [dst, #-16] -.Ltail15down: - /* Move up to 15 bytes of data. Does not assume additional data - being moved. */ - tbz count, #3, 1f - ldr tmp1, [src], #8 - str tmp1, [dst], #8 -1: - tbz count, #2, 1f - ldr tmp1w, [src], #4 - str tmp1w, [dst], #4 -1: - tbz count, #1, 1f - ldrh tmp1w, [src], #2 - strh tmp1w, [dst], #2 -1: - tbz count, #0, 1f - ldrb tmp1w, [src] - strb tmp1w, [dst] -1: - ret - -.Lmov_not_short_down: - /* We don't much care about the alignment of DST, but we want SRC - * to be 128-bit (16 byte) aligned so that we don't cross cache line - * boundaries on both loads and stores. */ - neg tmp2, src - ands tmp2, tmp2, #15 /* Bytes to reach alignment. */ - b.eq 2f - sub count, count, tmp2 - /* Move enough data to reach alignment; unlike memcpy, we have to - * be aware of the overlap, which means we can't move data twice. */ - tbz tmp2, #3, 1f - ldr tmp1, [src], #8 - str tmp1, [dst], #8 -1: - tbz tmp2, #2, 1f - ldr tmp1w, [src], #4 - str tmp1w, [dst], #4 -1: - tbz tmp2, #1, 1f - ldrh tmp1w, [src], #2 - strh tmp1w, [dst], #2 -1: - tbz tmp2, #0, 1f - ldrb tmp1w, [src], #1 - strb tmp1w, [dst], #1 -1: - - /* There may be less than 63 bytes to go now. */ - cmp count, #63 - b.le .Ltail63down -2: - subs count, count, #128 - b.ge .Lmov_body_large_down - /* Less than 128 bytes to move, so handle 64 here and then jump - * to the tail. */ - ldp A_l, A_h, [src] - ldp B_l, B_h, [src, #16] - ldp C_l, C_h, [src, #32] - ldp D_l, D_h, [src, #48] - stp A_l, A_h, [dst] - stp B_l, B_h, [dst, #16] - stp C_l, C_h, [dst, #32] - stp D_l, D_h, [dst, #48] - tst count, #0x3f - add src, src, #64 - add dst, dst, #64 - b.ne .Ltail63down - ret - - /* Critical loop. Start at a new cache line boundary. Assuming - * 64 bytes per line this ensures the entire loop is in one line. */ - .p2align 6 -.Lmov_body_large_down: - /* There are at least 128 bytes to move. */ - ldp A_l, A_h, [src, #0] - sub dst, dst, #16 /* Pre-bias. */ - ldp B_l, B_h, [src, #16] - ldp C_l, C_h, [src, #32] - ldp D_l, D_h, [src, #48]! /* src += 64 - Pre-bias. */ -1: - stp A_l, A_h, [dst, #16] - ldp A_l, A_h, [src, #16] - stp B_l, B_h, [dst, #32] - ldp B_l, B_h, [src, #32] - stp C_l, C_h, [dst, #48] - ldp C_l, C_h, [src, #48] - stp D_l, D_h, [dst, #64]! - ldp D_l, D_h, [src, #64]! - subs count, count, #64 - b.ge 1b - stp A_l, A_h, [dst, #16] - stp B_l, B_h, [dst, #32] - stp C_l, C_h, [dst, #48] - stp D_l, D_h, [dst, #64] - add src, src, #16 - add dst, dst, #64 + 16 - tst count, #0x3f - b.ne .Ltail63down - ret - .size memmove, . - memmove -#endif diff --git a/newlib/libc/machine/aarch64/memset-stub.c b/newlib/libc/machine/aarch64/memset-stub.c deleted file mode 100644 index 7defee835..000000000 --- a/newlib/libc/machine/aarch64/memset-stub.c +++ /dev/null @@ -1,31 +0,0 @@ -/* Copyright (c) 2012-2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -# include "../../string/memset.c" -#else -/* See memset.S */ -#endif diff --git a/newlib/libc/machine/aarch64/memset.S b/newlib/libc/machine/aarch64/memset.S deleted file mode 100644 index 20372df94..000000000 --- a/newlib/libc/machine/aarch64/memset.S +++ /dev/null @@ -1,246 +0,0 @@ -/* Copyright (c) 2012-2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -/* Assumptions: - * - * ARMv8-a, AArch64 - * Unaligned accesses - * - */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -/* See memset-stub.c */ -#else - -/* By default we assume that the DC instruction can be used to zero - data blocks more efficiently. In some circumstances this might be - unsafe, for example in an asymmetric multiprocessor environment with - different DC clear lengths (neither the upper nor lower lengths are - safe to use). The feature can be disabled by defining DONT_USE_DC. - - If code may be run in a virtualized environment, then define - MAYBE_VIRT. This will cause the code to cache the system register - values rather than re-reading them each call. */ - -#define dstin x0 -#define val w1 -#define count x2 -#define tmp1 x3 -#define tmp1w w3 -#define tmp2 x4 -#define tmp2w w4 -#define zva_len_x x5 -#define zva_len w5 -#define zva_bits_x x6 - -#define A_l x7 -#define A_lw w7 -#define dst x8 -#define tmp3w w9 - - - .macro def_fn f p2align=0 - .text - .p2align \p2align - .global \f - .type \f, %function -\f: - .endm - -def_fn memset p2align=6 - - mov dst, dstin /* Preserve return value. */ - ands A_lw, val, #255 -#ifndef DONT_USE_DC - b.eq .Lzero_mem -#endif - orr A_lw, A_lw, A_lw, lsl #8 - orr A_lw, A_lw, A_lw, lsl #16 - orr A_l, A_l, A_l, lsl #32 -.Ltail_maybe_long: - cmp count, #64 - b.ge .Lnot_short -.Ltail_maybe_tiny: - cmp count, #15 - b.le .Ltail15tiny -.Ltail63: - ands tmp1, count, #0x30 - b.eq .Ltail15 - add dst, dst, tmp1 - cmp tmp1w, #0x20 - b.eq 1f - b.lt 2f - stp A_l, A_l, [dst, #-48] -1: - stp A_l, A_l, [dst, #-32] -2: - stp A_l, A_l, [dst, #-16] - -.Ltail15: - and count, count, #15 - add dst, dst, count - stp A_l, A_l, [dst, #-16] /* Repeat some/all of last store. */ - ret - -.Ltail15tiny: - /* Set up to 15 bytes. Does not assume earlier memory - being set. */ - tbz count, #3, 1f - str A_l, [dst], #8 -1: - tbz count, #2, 1f - str A_lw, [dst], #4 -1: - tbz count, #1, 1f - strh A_lw, [dst], #2 -1: - tbz count, #0, 1f - strb A_lw, [dst] -1: - ret - - /* Critical loop. Start at a new cache line boundary. Assuming - * 64 bytes per line, this ensures the entire loop is in one line. */ - .p2align 6 -.Lnot_short: - neg tmp2, dst - ands tmp2, tmp2, #15 - b.eq 2f - /* Bring DST to 128-bit (16-byte) alignment. We know that there's - * more than that to set, so we simply store 16 bytes and advance by - * the amount required to reach alignment. */ - sub count, count, tmp2 - stp A_l, A_l, [dst] - add dst, dst, tmp2 - /* There may be less than 63 bytes to go now. */ - cmp count, #63 - b.le .Ltail63 -2: - sub dst, dst, #16 /* Pre-bias. */ - sub count, count, #64 -1: - stp A_l, A_l, [dst, #16] - stp A_l, A_l, [dst, #32] - stp A_l, A_l, [dst, #48] - stp A_l, A_l, [dst, #64]! - subs count, count, #64 - b.ge 1b - tst count, #0x3f - add dst, dst, #16 - b.ne .Ltail63 - ret - -#ifndef DONT_USE_DC - /* For zeroing memory, check to see if we can use the ZVA feature to - * zero entire 'cache' lines. */ -.Lzero_mem: - mov A_l, #0 - cmp count, #63 - b.le .Ltail_maybe_tiny - neg tmp2, dst - ands tmp2, tmp2, #15 - b.eq 1f - sub count, count, tmp2 - stp A_l, A_l, [dst] - add dst, dst, tmp2 - cmp count, #63 - b.le .Ltail63 -1: - /* For zeroing small amounts of memory, it's not worth setting up - * the line-clear code. */ - cmp count, #128 - b.lt .Lnot_short -#ifdef MAYBE_VIRT - /* For efficiency when virtualized, we cache the ZVA capability. */ - adrp tmp2, .Lcache_clear - ldr zva_len, [tmp2, #:lo12:.Lcache_clear] - tbnz zva_len, #31, .Lnot_short - cbnz zva_len, .Lzero_by_line - mrs tmp1, dczid_el0 - tbz tmp1, #4, 1f - /* ZVA not available. Remember this for next time. */ - mov zva_len, #~0 - str zva_len, [tmp2, #:lo12:.Lcache_clear] - b .Lnot_short -1: - mov tmp3w, #4 - and zva_len, tmp1w, #15 /* Safety: other bits reserved. */ - lsl zva_len, tmp3w, zva_len - str zva_len, [tmp2, #:lo12:.Lcache_clear] -#else - mrs tmp1, dczid_el0 - tbnz tmp1, #4, .Lnot_short - mov tmp3w, #4 - and zva_len, tmp1w, #15 /* Safety: other bits reserved. */ - lsl zva_len, tmp3w, zva_len -#endif - -.Lzero_by_line: - /* Compute how far we need to go to become suitably aligned. We're - * already at quad-word alignment. */ - cmp count, zva_len_x - b.lt .Lnot_short /* Not enough to reach alignment. */ - sub zva_bits_x, zva_len_x, #1 - neg tmp2, dst - ands tmp2, tmp2, zva_bits_x - b.eq 1f /* Already aligned. */ - /* Not aligned, check that there's enough to copy after alignment. */ - sub tmp1, count, tmp2 - cmp tmp1, #64 - ccmp tmp1, zva_len_x, #8, ge /* NZCV=0b1000 */ - b.lt .Lnot_short - /* We know that there's at least 64 bytes to zero and that it's safe - * to overrun by 64 bytes. */ - mov count, tmp1 -2: - stp A_l, A_l, [dst] - stp A_l, A_l, [dst, #16] - stp A_l, A_l, [dst, #32] - subs tmp2, tmp2, #64 - stp A_l, A_l, [dst, #48] - add dst, dst, #64 - b.ge 2b - /* We've overrun a bit, so adjust dst downwards. */ - add dst, dst, tmp2 -1: - sub count, count, zva_len_x -3: - dc zva, dst - add dst, dst, zva_len_x - subs count, count, zva_len_x - b.ge 3b - ands count, count, zva_bits_x - b.ne .Ltail_maybe_long - ret - .size memset, .-memset -#ifdef MAYBE_VIRT - .bss - .p2align 2 -.Lcache_clear: - .space 4 -#endif -#endif /* DONT_USE_DC */ -#endif diff --git a/newlib/libc/machine/aarch64/setjmp.S b/newlib/libc/machine/aarch64/setjmp.S deleted file mode 100644 index 0856145bf..000000000 --- a/newlib/libc/machine/aarch64/setjmp.S +++ /dev/null @@ -1,74 +0,0 @@ -/* - Copyright (c) 2011, 2012 ARM Ltd - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - 1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - 3. The name of the company may not be used to endorse or promote - products derived from this software without specific prior written - permission. - - THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED - WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#define GPR_LAYOUT \ - REG_PAIR (x19, x20, 0); \ - REG_PAIR (x21, x22, 16); \ - REG_PAIR (x23, x24, 32); \ - REG_PAIR (x25, x26, 48); \ - REG_PAIR (x27, x28, 64); \ - REG_PAIR (x29, x30, 80); \ - REG_ONE (x16, 96) - -#define FPR_LAYOUT \ - REG_PAIR ( d8, d9, 112); \ - REG_PAIR (d10, d11, 128); \ - REG_PAIR (d12, d13, 144); \ - REG_PAIR (d14, d15, 160); - -// int setjmp (jmp_buf) - .global setjmp - .type setjmp, %function -setjmp: - mov x16, sp -#define REG_PAIR(REG1, REG2, OFFS) stp REG1, REG2, [x0, OFFS] -#define REG_ONE(REG1, OFFS) str REG1, [x0, OFFS] - GPR_LAYOUT - FPR_LAYOUT -#undef REG_PAIR -#undef REG_ONE - mov w0, #0 - ret - .size setjmp, .-setjmp - -// void longjmp (jmp_buf, int) __attribute__ ((noreturn)) - .global longjmp - .type longjmp, %function -longjmp: -#define REG_PAIR(REG1, REG2, OFFS) ldp REG1, REG2, [x0, OFFS] -#define REG_ONE(REG1, OFFS) ldr REG1, [x0, OFFS] - GPR_LAYOUT - FPR_LAYOUT -#undef REG_PAIR -#undef REG_ONE - mov sp, x16 - cmp w1, #0 - cinc w0, w1, eq - // use br not ret, as ret is guaranteed to mispredict - br x30 - .size longjmp, .-longjmp diff --git a/newlib/libc/machine/aarch64/strcmp-stub.c b/newlib/libc/machine/aarch64/strcmp-stub.c deleted file mode 100644 index 871a24197..000000000 --- a/newlib/libc/machine/aarch64/strcmp-stub.c +++ /dev/null @@ -1,31 +0,0 @@ -/* Copyright (c) 2012-2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -# include "../../string/strcmp.c" -#else -/* See strcmp.S */ -#endif diff --git a/newlib/libc/machine/aarch64/strcmp.S b/newlib/libc/machine/aarch64/strcmp.S deleted file mode 100644 index 85baca920..000000000 --- a/newlib/libc/machine/aarch64/strcmp.S +++ /dev/null @@ -1,173 +0,0 @@ -/* Copyright (c) 2012-2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -/* Assumptions: - * - * ARMv8-a, AArch64 - */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -/* See strcmp-stub.c */ -#else - - .macro def_fn f p2align=0 - .text - .p2align \p2align - .global \f - .type \f, %function -\f: - .endm - -#define REP8_01 0x0101010101010101 -#define REP8_7f 0x7f7f7f7f7f7f7f7f -#define REP8_80 0x8080808080808080 - -/* Parameters and result. */ -#define src1 x0 -#define src2 x1 -#define result x0 - -/* Internal variables. */ -#define data1 x2 -#define data1w w2 -#define data2 x3 -#define data2w w3 -#define has_nul x4 -#define diff x5 -#define syndrome x6 -#define tmp1 x7 -#define tmp2 x8 -#define tmp3 x9 -#define zeroones x10 -#define pos x11 - - /* Start of performance-critical section -- one 64B cache line. */ -def_fn strcmp p2align=6 - eor tmp1, src1, src2 - mov zeroones, #REP8_01 - tst tmp1, #7 - b.ne .Lmisaligned8 - ands tmp1, src1, #7 - b.ne .Lmutual_align - /* NUL detection works on the principle that (X - 1) & (~X) & 0x80 - (=> (X - 1) & ~(X | 0x7f)) is non-zero iff a byte is zero, and - can be done in parallel across the entire word. */ -.Lloop_aligned: - ldr data1, [src1], #8 - ldr data2, [src2], #8 -.Lstart_realigned: - sub tmp1, data1, zeroones - orr tmp2, data1, #REP8_7f - eor diff, data1, data2 /* Non-zero if differences found. */ - bic has_nul, tmp1, tmp2 /* Non-zero if NUL terminator. */ - orr syndrome, diff, has_nul - cbz syndrome, .Lloop_aligned - /* End of performance-critical section -- one 64B cache line. */ - -#ifndef __AARCH64EB__ - rev syndrome, syndrome - rev data1, data1 - /* The MS-non-zero bit of the syndrome marks either the first bit - that is different, or the top bit of the first zero byte. - Shifting left now will bring the critical information into the - top bits. */ - clz pos, syndrome - rev data2, data2 - lsl data1, data1, pos - lsl data2, data2, pos - /* But we need to zero-extend (char is unsigned) the value and then - perform a signed 32-bit subtraction. */ - lsr data1, data1, #56 - sub result, data1, data2, lsr #56 - ret -#else - /* For big-endian we cannot use the trick with the syndrome value - as carry-propagation can corrupt the upper bits if the trailing - bytes in the string contain 0x01. */ - /* However, if there is no NUL byte in the dword, we can generate - the result directly. We can't just subtract the bytes as the - MSB might be significant. */ - cbnz has_nul, 1f - cmp data1, data2 - cset result, ne - cneg result, result, lo - ret -1: - /* Re-compute the NUL-byte detection, using a byte-reversed value. */ - rev tmp3, data1 - sub tmp1, tmp3, zeroones - orr tmp2, tmp3, #REP8_7f - bic has_nul, tmp1, tmp2 - rev has_nul, has_nul - orr syndrome, diff, has_nul - clz pos, syndrome - /* The MS-non-zero bit of the syndrome marks either the first bit - that is different, or the top bit of the first zero byte. - Shifting left now will bring the critical information into the - top bits. */ - lsl data1, data1, pos - lsl data2, data2, pos - /* But we need to zero-extend (char is unsigned) the value and then - perform a signed 32-bit subtraction. */ - lsr data1, data1, #56 - sub result, data1, data2, lsr #56 - ret -#endif - -.Lmutual_align: - /* Sources are mutually aligned, but are not currently at an - alignment boundary. Round down the addresses and then mask off - the bytes that preceed the start point. */ - bic src1, src1, #7 - bic src2, src2, #7 - lsl tmp1, tmp1, #3 /* Bytes beyond alignment -> bits. */ - ldr data1, [src1], #8 - neg tmp1, tmp1 /* Bits to alignment -64. */ - ldr data2, [src2], #8 - mov tmp2, #~0 -#ifdef __AARCH64EB__ - /* Big-endian. Early bytes are at MSB. */ - lsl tmp2, tmp2, tmp1 /* Shift (tmp1 & 63). */ -#else - /* Little-endian. Early bytes are at LSB. */ - lsr tmp2, tmp2, tmp1 /* Shift (tmp1 & 63). */ -#endif - orr data1, data1, tmp2 - orr data2, data2, tmp2 - b .Lstart_realigned - -.Lmisaligned8: - /* We can do better than this. */ - ldrb data1w, [src1], #1 - ldrb data2w, [src2], #1 - cmp data1w, #1 - ccmp data1w, data2w, #0, cs /* NZCV = 0b0000. */ - b.eq .Lmisaligned8 - sub result, data1, data2 - ret - .size strcmp, .-strcmp - -#endif diff --git a/newlib/libc/machine/aarch64/strlen-stub.c b/newlib/libc/machine/aarch64/strlen-stub.c deleted file mode 100644 index 717e209fb..000000000 --- a/newlib/libc/machine/aarch64/strlen-stub.c +++ /dev/null @@ -1,31 +0,0 @@ -/* Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -# include "../../string/strlen.c" -#else -/* See strlen.S */ -#endif diff --git a/newlib/libc/machine/aarch64/strlen.S b/newlib/libc/machine/aarch64/strlen.S deleted file mode 100644 index 36fde1fd9..000000000 --- a/newlib/libc/machine/aarch64/strlen.S +++ /dev/null @@ -1,136 +0,0 @@ -/* Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -/* See strlen-stub.c */ -#else - -/* Assumptions: - * - * ARMv8-a, AArch64 - */ - -/* Arguments and results. */ -#define srcin x0 -#define len x0 - -/* Locals and temporaries. */ -#define src x1 -#define data1 x2 -#define data2 x3 -#define data2a x4 -#define has_nul1 x5 -#define has_nul2 x6 -#define tmp1 x7 -#define tmp2 x8 -#define tmp3 x9 -#define tmp4 x10 -#define zeroones x11 -#define pos x12 - - .macro def_fn f p2align=0 - .text - .p2align \p2align - .global \f - .type \f, %function -\f: - .endm - -#define REP8_01 0x0101010101010101 -#define REP8_7f 0x7f7f7f7f7f7f7f7f -#define REP8_80 0x8080808080808080 - - /* Start of critial section -- keep to one 64Byte cache line. */ -def_fn strlen p2align=6 - mov zeroones, #REP8_01 - bic src, srcin, #15 - ands tmp1, srcin, #15 - b.ne .Lmisaligned - /* NUL detection works on the principle that (X - 1) & (~X) & 0x80 - (=> (X - 1) & ~(X | 0x7f)) is non-zero iff a byte is zero, and - can be done in parallel across the entire word. */ - /* The inner loop deals with two Dwords at a time. This has a - slightly higher start-up cost, but we should win quite quickly, - especially on cores with a high number of issue slots per - cycle, as we get much better parallelism out of the operations. */ -.Lloop: - ldp data1, data2, [src], #16 -.Lrealigned: - sub tmp1, data1, zeroones - orr tmp2, data1, #REP8_7f - sub tmp3, data2, zeroones - orr tmp4, data2, #REP8_7f - bic has_nul1, tmp1, tmp2 - bics has_nul2, tmp3, tmp4 - ccmp has_nul1, #0, #0, eq /* NZCV = 0000 */ - b.eq .Lloop - /* End of critical section -- keep to one 64Byte cache line. */ - - sub len, src, srcin - cbz has_nul1, .Lnul_in_data2 -#ifdef __AARCH64EB__ - mov data2, data1 -#endif - sub len, len, #8 - mov has_nul2, has_nul1 -.Lnul_in_data2: -#ifdef __AARCH64EB__ - /* For big-endian, carry propagation (if the final byte in the - string is 0x01) means we cannot use has_nul directly. The - easiest way to get the correct byte is to byte-swap the data - and calculate the syndrome a second time. */ - rev data2, data2 - sub tmp1, data2, zeroones - orr tmp2, data2, #REP8_7f - bic has_nul2, tmp1, tmp2 -#endif - sub len, len, #8 - rev has_nul2, has_nul2 - clz pos, has_nul2 - add len, len, pos, lsr #3 /* Bits to bytes. */ - ret - -.Lmisaligned: - cmp tmp1, #8 - neg tmp1, tmp1 - ldp data1, data2, [src], #16 - lsl tmp1, tmp1, #3 /* Bytes beyond alignment -> bits. */ - mov tmp2, #~0 -#ifdef __AARCH64EB__ - /* Big-endian. Early bytes are at MSB. */ - lsl tmp2, tmp2, tmp1 /* Shift (tmp1 & 63). */ -#else - /* Little-endian. Early bytes are at LSB. */ - lsr tmp2, tmp2, tmp1 /* Shift (tmp1 & 63). */ -#endif - orr data1, data1, tmp2 - orr data2a, data2, tmp2 - csinv data1, data1, xzr, le - csel data2, data2, data2a, le - b .Lrealigned - - .size strlen, . - strlen -#endif diff --git a/newlib/libc/machine/aarch64/strncmp-stub.c b/newlib/libc/machine/aarch64/strncmp-stub.c deleted file mode 100644 index 1eb988f78..000000000 --- a/newlib/libc/machine/aarch64/strncmp-stub.c +++ /dev/null @@ -1,31 +0,0 @@ -/* Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -# include "../../string/strncmp.c" -#else -/* See strncmp.S */ -#endif diff --git a/newlib/libc/machine/aarch64/strncmp.S b/newlib/libc/machine/aarch64/strncmp.S deleted file mode 100644 index 0b90dd8a6..000000000 --- a/newlib/libc/machine/aarch64/strncmp.S +++ /dev/null @@ -1,228 +0,0 @@ -/* Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -/* See strcmp-stub.c */ -#else - -/* Assumptions: - * - * ARMv8-a, AArch64 - */ - - .macro def_fn f p2align=0 - .text - .p2align \p2align - .global \f - .type \f, %function -\f: - .endm - -#define REP8_01 0x0101010101010101 -#define REP8_7f 0x7f7f7f7f7f7f7f7f -#define REP8_80 0x8080808080808080 - -/* Parameters and result. */ -#define src1 x0 -#define src2 x1 -#define limit x2 -#define result x0 - -/* Internal variables. */ -#define data1 x3 -#define data1w w3 -#define data2 x4 -#define data2w w4 -#define has_nul x5 -#define diff x6 -#define syndrome x7 -#define tmp1 x8 -#define tmp2 x9 -#define tmp3 x10 -#define zeroones x11 -#define pos x12 -#define limit_wd x13 -#define mask x14 -#define endloop x15 - - .text - .p2align 6 - .rep 7 - nop /* Pad so that the loop below fits a cache line. */ - .endr -def_fn strncmp - cbz limit, .Lret0 - eor tmp1, src1, src2 - mov zeroones, #REP8_01 - tst tmp1, #7 - b.ne .Lmisaligned8 - ands tmp1, src1, #7 - b.ne .Lmutual_align - /* Calculate the number of full and partial words -1. */ - sub limit_wd, limit, #1 /* limit != 0, so no underflow. */ - lsr limit_wd, limit_wd, #3 /* Convert to Dwords. */ - - /* NUL detection works on the principle that (X - 1) & (~X) & 0x80 - (=> (X - 1) & ~(X | 0x7f)) is non-zero iff a byte is zero, and - can be done in parallel across the entire word. */ - /* Start of performance-critical section -- one 64B cache line. */ -.Lloop_aligned: - ldr data1, [src1], #8 - ldr data2, [src2], #8 -.Lstart_realigned: - subs limit_wd, limit_wd, #1 - sub tmp1, data1, zeroones - orr tmp2, data1, #REP8_7f - eor diff, data1, data2 /* Non-zero if differences found. */ - csinv endloop, diff, xzr, pl /* Last Dword or differences. */ - bics has_nul, tmp1, tmp2 /* Non-zero if NUL terminator. */ - ccmp endloop, #0, #0, eq - b.eq .Lloop_aligned - /* End of performance-critical section -- one 64B cache line. */ - - /* Not reached the limit, must have found the end or a diff. */ - tbz limit_wd, #63, .Lnot_limit - - /* Limit % 8 == 0 => all bytes significant. */ - ands limit, limit, #7 - b.eq .Lnot_limit - - lsl limit, limit, #3 /* Bits -> bytes. */ - mov mask, #~0 -#ifdef __AARCH64EB__ - lsr mask, mask, limit -#else - lsl mask, mask, limit -#endif - bic data1, data1, mask - bic data2, data2, mask - - /* Make sure that the NUL byte is marked in the syndrome. */ - orr has_nul, has_nul, mask - -.Lnot_limit: - orr syndrome, diff, has_nul - -#ifndef __AARCH64EB__ - rev syndrome, syndrome - rev data1, data1 - /* The MS-non-zero bit of the syndrome marks either the first bit - that is different, or the top bit of the first zero byte. - Shifting left now will bring the critical information into the - top bits. */ - clz pos, syndrome - rev data2, data2 - lsl data1, data1, pos - lsl data2, data2, pos - /* But we need to zero-extend (char is unsigned) the value and then - perform a signed 32-bit subtraction. */ - lsr data1, data1, #56 - sub result, data1, data2, lsr #56 - ret -#else - /* For big-endian we cannot use the trick with the syndrome value - as carry-propagation can corrupt the upper bits if the trailing - bytes in the string contain 0x01. */ - /* However, if there is no NUL byte in the dword, we can generate - the result directly. We can't just subtract the bytes as the - MSB might be significant. */ - cbnz has_nul, 1f - cmp data1, data2 - cset result, ne - cneg result, result, lo - ret -1: - /* Re-compute the NUL-byte detection, using a byte-reversed value. */ - rev tmp3, data1 - sub tmp1, tmp3, zeroones - orr tmp2, tmp3, #REP8_7f - bic has_nul, tmp1, tmp2 - rev has_nul, has_nul - orr syndrome, diff, has_nul - clz pos, syndrome - /* The MS-non-zero bit of the syndrome marks either the first bit - that is different, or the top bit of the first zero byte. - Shifting left now will bring the critical information into the - top bits. */ - lsl data1, data1, pos - lsl data2, data2, pos - /* But we need to zero-extend (char is unsigned) the value and then - perform a signed 32-bit subtraction. */ - lsr data1, data1, #56 - sub result, data1, data2, lsr #56 - ret -#endif - -.Lmutual_align: - /* Sources are mutually aligned, but are not currently at an - alignment boundary. Round down the addresses and then mask off - the bytes that precede the start point. - We also need to adjust the limit calculations, but without - overflowing if the limit is near ULONG_MAX. */ - bic src1, src1, #7 - bic src2, src2, #7 - ldr data1, [src1], #8 - neg tmp3, tmp1, lsl #3 /* 64 - bits(bytes beyond align). */ - ldr data2, [src2], #8 - mov tmp2, #~0 - sub limit_wd, limit, #1 /* limit != 0, so no underflow. */ -#ifdef __AARCH64EB__ - /* Big-endian. Early bytes are at MSB. */ - lsl tmp2, tmp2, tmp3 /* Shift (tmp1 & 63). */ -#else - /* Little-endian. Early bytes are at LSB. */ - lsr tmp2, tmp2, tmp3 /* Shift (tmp1 & 63). */ -#endif - and tmp3, limit_wd, #7 - lsr limit_wd, limit_wd, #3 - /* Adjust the limit. Only low 3 bits used, so overflow irrelevant. */ - add limit, limit, tmp1 - add tmp3, tmp3, tmp1 - orr data1, data1, tmp2 - orr data2, data2, tmp2 - add limit_wd, limit_wd, tmp3, lsr #3 - b .Lstart_realigned - -.Lret0: - mov result, #0 - ret - - .p2align 6 -.Lmisaligned8: - sub limit, limit, #1 -1: - /* Perhaps we can do better than this. */ - ldrb data1w, [src1], #1 - ldrb data2w, [src2], #1 - subs limit, limit, #1 - ccmp data1w, #1, #0, cs /* NZCV = 0b0000. */ - ccmp data1w, data2w, #0, cs /* NZCV = 0b0000. */ - b.eq 1b - sub result, data1, data2 - ret - .size strncmp, . - strncmp - -#endif diff --git a/newlib/libc/machine/aarch64/strnlen-stub.c b/newlib/libc/machine/aarch64/strnlen-stub.c deleted file mode 100644 index 8e1903c8e..000000000 --- a/newlib/libc/machine/aarch64/strnlen-stub.c +++ /dev/null @@ -1,31 +0,0 @@ -/* Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -# include "../../string/strnlen.c" -#else -/* See strnlen.S */ -#endif diff --git a/newlib/libc/machine/aarch64/strnlen.S b/newlib/libc/machine/aarch64/strnlen.S deleted file mode 100644 index c255c3f7c..000000000 --- a/newlib/libc/machine/aarch64/strnlen.S +++ /dev/null @@ -1,187 +0,0 @@ -/* strnlen - calculate the length of a string with limit. - - Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -/* See strlen-stub.c */ -#else - -/* Assumptions: - * - * ARMv8-a, AArch64 - */ - -/* Arguments and results. */ -#define srcin x0 -#define len x0 -#define limit x1 - -/* Locals and temporaries. */ -#define src x2 -#define data1 x3 -#define data2 x4 -#define data2a x5 -#define has_nul1 x6 -#define has_nul2 x7 -#define tmp1 x8 -#define tmp2 x9 -#define tmp3 x10 -#define tmp4 x11 -#define zeroones x12 -#define pos x13 -#define limit_wd x14 - - .macro def_fn f p2align=0 - .text - .p2align \p2align - .global \f - .type \f, %function -\f: - .endm - -#define REP8_01 0x0101010101010101 -#define REP8_7f 0x7f7f7f7f7f7f7f7f -#define REP8_80 0x8080808080808080 - - .text - .p2align 6 -.Lstart: - /* Pre-pad to ensure critical loop begins an icache line. */ - .rep 7 - nop - .endr - /* Put this code here to avoid wasting more space with pre-padding. */ -.Lhit_limit: - mov len, limit - ret - -def_fn strnlen - cbz limit, .Lhit_limit - mov zeroones, #REP8_01 - bic src, srcin, #15 - ands tmp1, srcin, #15 - b.ne .Lmisaligned - /* Calculate the number of full and partial words -1. */ - sub limit_wd, limit, #1 /* Limit != 0, so no underflow. */ - lsr limit_wd, limit_wd, #4 /* Convert to Qwords. */ - - /* NUL detection works on the principle that (X - 1) & (~X) & 0x80 - (=> (X - 1) & ~(X | 0x7f)) is non-zero iff a byte is zero, and - can be done in parallel across the entire word. */ - /* The inner loop deals with two Dwords at a time. This has a - slightly higher start-up cost, but we should win quite quickly, - especially on cores with a high number of issue slots per - cycle, as we get much better parallelism out of the operations. */ - - /* Start of critial section -- keep to one 64Byte cache line. */ -.Lloop: - ldp data1, data2, [src], #16 -.Lrealigned: - sub tmp1, data1, zeroones - orr tmp2, data1, #REP8_7f - sub tmp3, data2, zeroones - orr tmp4, data2, #REP8_7f - bic has_nul1, tmp1, tmp2 - bic has_nul2, tmp3, tmp4 - subs limit_wd, limit_wd, #1 - orr tmp1, has_nul1, has_nul2 - ccmp tmp1, #0, #0, pl /* NZCV = 0000 */ - b.eq .Lloop - /* End of critical section -- keep to one 64Byte cache line. */ - - orr tmp1, has_nul1, has_nul2 - cbz tmp1, .Lhit_limit /* No null in final Qword. */ - - /* We know there's a null in the final Qword. The easiest thing - to do now is work out the length of the string and return - MIN (len, limit). */ - - sub len, src, srcin - cbz has_nul1, .Lnul_in_data2 -#ifdef __AARCH64EB__ - mov data2, data1 -#endif - sub len, len, #8 - mov has_nul2, has_nul1 -.Lnul_in_data2: -#ifdef __AARCH64EB__ - /* For big-endian, carry propagation (if the final byte in the - string is 0x01) means we cannot use has_nul directly. The - easiest way to get the correct byte is to byte-swap the data - and calculate the syndrome a second time. */ - rev data2, data2 - sub tmp1, data2, zeroones - orr tmp2, data2, #REP8_7f - bic has_nul2, tmp1, tmp2 -#endif - sub len, len, #8 - rev has_nul2, has_nul2 - clz pos, has_nul2 - add len, len, pos, lsr #3 /* Bits to bytes. */ - cmp len, limit - csel len, len, limit, ls /* Return the lower value. */ - ret - -.Lmisaligned: - /* Deal with a partial first word. - We're doing two things in parallel here; - 1) Calculate the number of words (but avoiding overflow if - limit is near ULONG_MAX) - to do this we need to work out - limit + tmp1 - 1 as a 65-bit value before shifting it; - 2) Load and mask the initial data words - we force the bytes - before the ones we are interested in to 0xff - this ensures - early bytes will not hit any zero detection. */ - sub limit_wd, limit, #1 - neg tmp4, tmp1 - cmp tmp1, #8 - - and tmp3, limit_wd, #15 - lsr limit_wd, limit_wd, #4 - mov tmp2, #~0 - - ldp data1, data2, [src], #16 - lsl tmp4, tmp4, #3 /* Bytes beyond alignment -> bits. */ - add tmp3, tmp3, tmp1 - -#ifdef __AARCH64EB__ - /* Big-endian. Early bytes are at MSB. */ - lsl tmp2, tmp2, tmp4 /* Shift (tmp1 & 63). */ -#else - /* Little-endian. Early bytes are at LSB. */ - lsr tmp2, tmp2, tmp4 /* Shift (tmp1 & 63). */ -#endif - add limit_wd, limit_wd, tmp3, lsr #4 - - orr data1, data1, tmp2 - orr data2a, data2, tmp2 - - csinv data1, data1, xzr, le - csel data2, data2, data2a, le - b .Lrealigned - .size strnlen, . - .Lstart /* Include pre-padding in size. */ - -#endif diff --git a/newlib/libc/machine/arm/Makefile.am b/newlib/libc/machine/arm/Makefile.am index 0490026cf..c5e797e70 100644 --- a/newlib/libc/machine/arm/Makefile.am +++ b/newlib/libc/machine/arm/Makefile.am @@ -16,3 +16,9 @@ lib_a_CFLAGS = $(AM_CFLAGS) ACLOCAL_AMFLAGS = -I ../../.. -I ../../../.. CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host + +MEMCPY_DEP=memcpy-armv7a.S memcpy-armv7m.S + +$(lpfx)memcpy.o: $(MEMCPY_DEP) + +$(lpfx)memcpy.obj: $(MEMCPY_DEP) diff --git a/newlib/libc/machine/arm/Makefile.in b/newlib/libc/machine/arm/Makefile.in index d5ab8a021..975103f6c 100644 --- a/newlib/libc/machine/arm/Makefile.in +++ b/newlib/libc/machine/arm/Makefile.in @@ -208,6 +208,7 @@ lib_a_CCASFLAGS = $(AM_CCASFLAGS) lib_a_CFLAGS = $(AM_CFLAGS) ACLOCAL_AMFLAGS = -I ../../.. -I ../../../.. CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host +MEMCPY_DEP = memcpy-armv7a.S memcpy-armv7m.S all: all-am .SUFFIXES: @@ -503,6 +504,10 @@ uninstall-am: uninstall-am +$(lpfx)memcpy.o: $(MEMCPY_DEP) + +$(lpfx)memcpy.obj: $(MEMCPY_DEP) + # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: diff --git a/newlib/libc/machine/arm/memcpy-armv7a.S b/newlib/libc/machine/arm/memcpy-armv7a.S new file mode 100644 index 000000000..de5bf9ad8 --- /dev/null +++ b/newlib/libc/machine/arm/memcpy-armv7a.S @@ -0,0 +1,619 @@ +/* Copyright (c) 2013, Linaro Limited + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + * Neither the name of Linaro Limited nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + This memcpy routine is optimised for Cortex-A15 cores and takes advantage + of VFP or NEON when built with the appropriate flags. + + Assumptions: + + ARMv6 (ARMv7-a if using Neon) + ARM state + Unaligned accesses + LDRD/STRD support unaligned word accesses + + If compiled with GCC, this file should be enclosed within following + pre-processing check: + if defined (__ARM_ARCH_7A__) && defined (__ARM_FEATURE_UNALIGNED) + + */ + .syntax unified + /* This implementation requires ARM state. */ + .arm + +#ifdef __ARM_NEON__ + + .fpu neon + .arch armv7-a +# define FRAME_SIZE 4 +# define USE_VFP +# define USE_NEON + +#elif !defined (__SOFTFP__) + + .arch armv6 + .fpu vfpv2 +# define FRAME_SIZE 32 +# define USE_VFP + +#else + .arch armv6 +# define FRAME_SIZE 32 + +#endif + +/* Old versions of GAS incorrectly implement the NEON align semantics. */ +#ifdef BROKEN_ASM_NEON_ALIGN +#define ALIGN(addr, align) addr,:align +#else +#define ALIGN(addr, align) addr:align +#endif + +#define PC_OFFSET 8 /* PC pipeline compensation. */ +#define INSN_SIZE 4 + +/* Call parameters. */ +#define dstin r0 +#define src r1 +#define count r2 + +/* Locals. */ +#define tmp1 r3 +#define dst ip +#define tmp2 r10 + +#ifndef USE_NEON +/* For bulk copies using GP registers. */ +#define A_l r2 /* Call-clobbered. */ +#define A_h r3 /* Call-clobbered. */ +#define B_l r4 +#define B_h r5 +#define C_l r6 +#define C_h r7 +#define D_l r8 +#define D_h r9 +#endif + +/* Number of lines ahead to pre-fetch data. If you change this the code + below will need adjustment to compensate. */ + +#define prefetch_lines 5 + +#ifdef USE_VFP + .macro cpy_line_vfp vreg, base + vstr \vreg, [dst, #\base] + vldr \vreg, [src, #\base] + vstr d0, [dst, #\base + 8] + vldr d0, [src, #\base + 8] + vstr d1, [dst, #\base + 16] + vldr d1, [src, #\base + 16] + vstr d2, [dst, #\base + 24] + vldr d2, [src, #\base + 24] + vstr \vreg, [dst, #\base + 32] + vldr \vreg, [src, #\base + prefetch_lines * 64 - 32] + vstr d0, [dst, #\base + 40] + vldr d0, [src, #\base + 40] + vstr d1, [dst, #\base + 48] + vldr d1, [src, #\base + 48] + vstr d2, [dst, #\base + 56] + vldr d2, [src, #\base + 56] + .endm + + .macro cpy_tail_vfp vreg, base + vstr \vreg, [dst, #\base] + vldr \vreg, [src, #\base] + vstr d0, [dst, #\base + 8] + vldr d0, [src, #\base + 8] + vstr d1, [dst, #\base + 16] + vldr d1, [src, #\base + 16] + vstr d2, [dst, #\base + 24] + vldr d2, [src, #\base + 24] + vstr \vreg, [dst, #\base + 32] + vstr d0, [dst, #\base + 40] + vldr d0, [src, #\base + 40] + vstr d1, [dst, #\base + 48] + vldr d1, [src, #\base + 48] + vstr d2, [dst, #\base + 56] + vldr d2, [src, #\base + 56] + .endm +#endif + + .macro def_fn f p2align=0 + .text + .p2align \p2align + .global \f + .type \f, %function +\f: + .endm + +def_fn memcpy p2align=6 + + mov dst, dstin /* Preserve dstin, we need to return it. */ + cmp count, #64 + bge .Lcpy_not_short + /* Deal with small copies quickly by dropping straight into the + exit block. */ + +.Ltail63unaligned: +#ifdef USE_NEON + and tmp1, count, #0x38 + rsb tmp1, tmp1, #(56 - PC_OFFSET + INSN_SIZE) + add pc, pc, tmp1 + vld1.8 {d0}, [src]! /* 14 words to go. */ + vst1.8 {d0}, [dst]! + vld1.8 {d0}, [src]! /* 12 words to go. */ + vst1.8 {d0}, [dst]! + vld1.8 {d0}, [src]! /* 10 words to go. */ + vst1.8 {d0}, [dst]! + vld1.8 {d0}, [src]! /* 8 words to go. */ + vst1.8 {d0}, [dst]! + vld1.8 {d0}, [src]! /* 6 words to go. */ + vst1.8 {d0}, [dst]! + vld1.8 {d0}, [src]! /* 4 words to go. */ + vst1.8 {d0}, [dst]! + vld1.8 {d0}, [src]! /* 2 words to go. */ + vst1.8 {d0}, [dst]! + + tst count, #4 + ldrne tmp1, [src], #4 + strne tmp1, [dst], #4 +#else + /* Copy up to 15 full words of data. May not be aligned. */ + /* Cannot use VFP for unaligned data. */ + and tmp1, count, #0x3c + add dst, dst, tmp1 + add src, src, tmp1 + rsb tmp1, tmp1, #(60 - PC_OFFSET/2 + INSN_SIZE/2) + /* Jump directly into the sequence below at the correct offset. */ + add pc, pc, tmp1, lsl #1 + + ldr tmp1, [src, #-60] /* 15 words to go. */ + str tmp1, [dst, #-60] + + ldr tmp1, [src, #-56] /* 14 words to go. */ + str tmp1, [dst, #-56] + ldr tmp1, [src, #-52] + str tmp1, [dst, #-52] + + ldr tmp1, [src, #-48] /* 12 words to go. */ + str tmp1, [dst, #-48] + ldr tmp1, [src, #-44] + str tmp1, [dst, #-44] + + ldr tmp1, [src, #-40] /* 10 words to go. */ + str tmp1, [dst, #-40] + ldr tmp1, [src, #-36] + str tmp1, [dst, #-36] + + ldr tmp1, [src, #-32] /* 8 words to go. */ + str tmp1, [dst, #-32] + ldr tmp1, [src, #-28] + str tmp1, [dst, #-28] + + ldr tmp1, [src, #-24] /* 6 words to go. */ + str tmp1, [dst, #-24] + ldr tmp1, [src, #-20] + str tmp1, [dst, #-20] + + ldr tmp1, [src, #-16] /* 4 words to go. */ + str tmp1, [dst, #-16] + ldr tmp1, [src, #-12] + str tmp1, [dst, #-12] + + ldr tmp1, [src, #-8] /* 2 words to go. */ + str tmp1, [dst, #-8] + ldr tmp1, [src, #-4] + str tmp1, [dst, #-4] +#endif + + lsls count, count, #31 + ldrhcs tmp1, [src], #2 + ldrbne src, [src] /* Src is dead, use as a scratch. */ + strhcs tmp1, [dst], #2 + strbne src, [dst] + bx lr + +.Lcpy_not_short: + /* At least 64 bytes to copy, but don't know the alignment yet. */ + str tmp2, [sp, #-FRAME_SIZE]! + and tmp2, src, #3 + and tmp1, dst, #3 + cmp tmp1, tmp2 + bne .Lcpy_notaligned + +#ifdef USE_VFP + /* Magic dust alert! Force VFP on Cortex-A9. Experiments show + that the FP pipeline is much better at streaming loads and + stores. This is outside the critical loop. */ + vmov.f32 s0, s0 +#endif + + /* SRC and DST have the same mutual 32-bit alignment, but we may + still need to pre-copy some bytes to get to natural alignment. + We bring DST into full 64-bit alignment. */ + lsls tmp2, dst, #29 + beq 1f + rsbs tmp2, tmp2, #0 + sub count, count, tmp2, lsr #29 + ldrmi tmp1, [src], #4 + strmi tmp1, [dst], #4 + lsls tmp2, tmp2, #2 + ldrhcs tmp1, [src], #2 + ldrbne tmp2, [src], #1 + strhcs tmp1, [dst], #2 + strbne tmp2, [dst], #1 + +1: + subs tmp2, count, #64 /* Use tmp2 for count. */ + blt .Ltail63aligned + + cmp tmp2, #512 + bge .Lcpy_body_long + +.Lcpy_body_medium: /* Count in tmp2. */ +#ifdef USE_VFP +1: + vldr d0, [src, #0] + subs tmp2, tmp2, #64 + vldr d1, [src, #8] + vstr d0, [dst, #0] + vldr d0, [src, #16] + vstr d1, [dst, #8] + vldr d1, [src, #24] + vstr d0, [dst, #16] + vldr d0, [src, #32] + vstr d1, [dst, #24] + vldr d1, [src, #40] + vstr d0, [dst, #32] + vldr d0, [src, #48] + vstr d1, [dst, #40] + vldr d1, [src, #56] + vstr d0, [dst, #48] + add src, src, #64 + vstr d1, [dst, #56] + add dst, dst, #64 + bge 1b + tst tmp2, #0x3f + beq .Ldone + +.Ltail63aligned: /* Count in tmp2. */ + and tmp1, tmp2, #0x38 + add dst, dst, tmp1 + add src, src, tmp1 + rsb tmp1, tmp1, #(56 - PC_OFFSET + INSN_SIZE) + add pc, pc, tmp1 + + vldr d0, [src, #-56] /* 14 words to go. */ + vstr d0, [dst, #-56] + vldr d0, [src, #-48] /* 12 words to go. */ + vstr d0, [dst, #-48] + vldr d0, [src, #-40] /* 10 words to go. */ + vstr d0, [dst, #-40] + vldr d0, [src, #-32] /* 8 words to go. */ + vstr d0, [dst, #-32] + vldr d0, [src, #-24] /* 6 words to go. */ + vstr d0, [dst, #-24] + vldr d0, [src, #-16] /* 4 words to go. */ + vstr d0, [dst, #-16] + vldr d0, [src, #-8] /* 2 words to go. */ + vstr d0, [dst, #-8] +#else + sub src, src, #8 + sub dst, dst, #8 +1: + ldrd A_l, A_h, [src, #8] + strd A_l, A_h, [dst, #8] + ldrd A_l, A_h, [src, #16] + strd A_l, A_h, [dst, #16] + ldrd A_l, A_h, [src, #24] + strd A_l, A_h, [dst, #24] + ldrd A_l, A_h, [src, #32] + strd A_l, A_h, [dst, #32] + ldrd A_l, A_h, [src, #40] + strd A_l, A_h, [dst, #40] + ldrd A_l, A_h, [src, #48] + strd A_l, A_h, [dst, #48] + ldrd A_l, A_h, [src, #56] + strd A_l, A_h, [dst, #56] + ldrd A_l, A_h, [src, #64]! + strd A_l, A_h, [dst, #64]! + subs tmp2, tmp2, #64 + bge 1b + tst tmp2, #0x3f + bne 1f + ldr tmp2,[sp], #FRAME_SIZE + bx lr +1: + add src, src, #8 + add dst, dst, #8 + +.Ltail63aligned: /* Count in tmp2. */ + /* Copy up to 7 d-words of data. Similar to Ltail63unaligned, but + we know that the src and dest are 32-bit aligned so we can use + LDRD/STRD to improve efficiency. */ + /* TMP2 is now negative, but we don't care about that. The bottom + six bits still tell us how many bytes are left to copy. */ + + and tmp1, tmp2, #0x38 + add dst, dst, tmp1 + add src, src, tmp1 + rsb tmp1, tmp1, #(56 - PC_OFFSET + INSN_SIZE) + add pc, pc, tmp1 + ldrd A_l, A_h, [src, #-56] /* 14 words to go. */ + strd A_l, A_h, [dst, #-56] + ldrd A_l, A_h, [src, #-48] /* 12 words to go. */ + strd A_l, A_h, [dst, #-48] + ldrd A_l, A_h, [src, #-40] /* 10 words to go. */ + strd A_l, A_h, [dst, #-40] + ldrd A_l, A_h, [src, #-32] /* 8 words to go. */ + strd A_l, A_h, [dst, #-32] + ldrd A_l, A_h, [src, #-24] /* 6 words to go. */ + strd A_l, A_h, [dst, #-24] + ldrd A_l, A_h, [src, #-16] /* 4 words to go. */ + strd A_l, A_h, [dst, #-16] + ldrd A_l, A_h, [src, #-8] /* 2 words to go. */ + strd A_l, A_h, [dst, #-8] + +#endif + tst tmp2, #4 + ldrne tmp1, [src], #4 + strne tmp1, [dst], #4 + lsls tmp2, tmp2, #31 /* Count (tmp2) now dead. */ + ldrhcs tmp1, [src], #2 + ldrbne tmp2, [src] + strhcs tmp1, [dst], #2 + strbne tmp2, [dst] + +.Ldone: + ldr tmp2, [sp], #FRAME_SIZE + bx lr + +.Lcpy_body_long: /* Count in tmp2. */ + + /* Long copy. We know that there's at least (prefetch_lines * 64) + bytes to go. */ +#ifdef USE_VFP + /* Don't use PLD. Instead, read some data in advance of the current + copy position into a register. This should act like a PLD + operation but we won't have to repeat the transfer. */ + + vldr d3, [src, #0] + vldr d4, [src, #64] + vldr d5, [src, #128] + vldr d6, [src, #192] + vldr d7, [src, #256] + + vldr d0, [src, #8] + vldr d1, [src, #16] + vldr d2, [src, #24] + add src, src, #32 + + subs tmp2, tmp2, #prefetch_lines * 64 * 2 + blt 2f +1: + cpy_line_vfp d3, 0 + cpy_line_vfp d4, 64 + cpy_line_vfp d5, 128 + add dst, dst, #3 * 64 + add src, src, #3 * 64 + cpy_line_vfp d6, 0 + cpy_line_vfp d7, 64 + add dst, dst, #2 * 64 + add src, src, #2 * 64 + subs tmp2, tmp2, #prefetch_lines * 64 + bge 1b + +2: + cpy_tail_vfp d3, 0 + cpy_tail_vfp d4, 64 + cpy_tail_vfp d5, 128 + add src, src, #3 * 64 + add dst, dst, #3 * 64 + cpy_tail_vfp d6, 0 + vstr d7, [dst, #64] + vldr d7, [src, #64] + vstr d0, [dst, #64 + 8] + vldr d0, [src, #64 + 8] + vstr d1, [dst, #64 + 16] + vldr d1, [src, #64 + 16] + vstr d2, [dst, #64 + 24] + vldr d2, [src, #64 + 24] + vstr d7, [dst, #64 + 32] + add src, src, #96 + vstr d0, [dst, #64 + 40] + vstr d1, [dst, #64 + 48] + vstr d2, [dst, #64 + 56] + add dst, dst, #128 + add tmp2, tmp2, #prefetch_lines * 64 + b .Lcpy_body_medium +#else + /* Long copy. Use an SMS style loop to maximize the I/O + bandwidth of the core. We don't have enough spare registers + to synthesise prefetching, so use PLD operations. */ + /* Pre-bias src and dst. */ + sub src, src, #8 + sub dst, dst, #8 + pld [src, #8] + pld [src, #72] + subs tmp2, tmp2, #64 + pld [src, #136] + ldrd A_l, A_h, [src, #8] + strd B_l, B_h, [sp, #8] + ldrd B_l, B_h, [src, #16] + strd C_l, C_h, [sp, #16] + ldrd C_l, C_h, [src, #24] + strd D_l, D_h, [sp, #24] + pld [src, #200] + ldrd D_l, D_h, [src, #32]! + b 1f + .p2align 6 +2: + pld [src, #232] + strd A_l, A_h, [dst, #40] + ldrd A_l, A_h, [src, #40] + strd B_l, B_h, [dst, #48] + ldrd B_l, B_h, [src, #48] + strd C_l, C_h, [dst, #56] + ldrd C_l, C_h, [src, #56] + strd D_l, D_h, [dst, #64]! + ldrd D_l, D_h, [src, #64]! + subs tmp2, tmp2, #64 +1: + strd A_l, A_h, [dst, #8] + ldrd A_l, A_h, [src, #8] + strd B_l, B_h, [dst, #16] + ldrd B_l, B_h, [src, #16] + strd C_l, C_h, [dst, #24] + ldrd C_l, C_h, [src, #24] + strd D_l, D_h, [dst, #32] + ldrd D_l, D_h, [src, #32] + bcs 2b + /* Save the remaining bytes and restore the callee-saved regs. */ + strd A_l, A_h, [dst, #40] + add src, src, #40 + strd B_l, B_h, [dst, #48] + ldrd B_l, B_h, [sp, #8] + strd C_l, C_h, [dst, #56] + ldrd C_l, C_h, [sp, #16] + strd D_l, D_h, [dst, #64] + ldrd D_l, D_h, [sp, #24] + add dst, dst, #72 + tst tmp2, #0x3f + bne .Ltail63aligned + ldr tmp2, [sp], #FRAME_SIZE + bx lr +#endif + +.Lcpy_notaligned: + pld [src] + pld [src, #64] + /* There's at least 64 bytes to copy, but there is no mutual + alignment. */ + /* Bring DST to 64-bit alignment. */ + lsls tmp2, dst, #29 + pld [src, #(2 * 64)] + beq 1f + rsbs tmp2, tmp2, #0 + sub count, count, tmp2, lsr #29 + ldrmi tmp1, [src], #4 + strmi tmp1, [dst], #4 + lsls tmp2, tmp2, #2 + ldrbne tmp1, [src], #1 + ldrhcs tmp2, [src], #2 + strbne tmp1, [dst], #1 + strhcs tmp2, [dst], #2 +1: + pld [src, #(3 * 64)] + subs count, count, #64 + ldrmi tmp2, [sp], #FRAME_SIZE + bmi .Ltail63unaligned + pld [src, #(4 * 64)] + +#ifdef USE_NEON + vld1.8 {d0-d3}, [src]! + vld1.8 {d4-d7}, [src]! + subs count, count, #64 + bmi 2f +1: + pld [src, #(4 * 64)] + vst1.8 {d0-d3}, [ALIGN (dst, 64)]! + vld1.8 {d0-d3}, [src]! + vst1.8 {d4-d7}, [ALIGN (dst, 64)]! + vld1.8 {d4-d7}, [src]! + subs count, count, #64 + bpl 1b +2: + vst1.8 {d0-d3}, [ALIGN (dst, 64)]! + vst1.8 {d4-d7}, [ALIGN (dst, 64)]! + ands count, count, #0x3f +#else + /* Use an SMS style loop to maximize the I/O bandwidth. */ + sub src, src, #4 + sub dst, dst, #8 + subs tmp2, count, #64 /* Use tmp2 for count. */ + ldr A_l, [src, #4] + ldr A_h, [src, #8] + strd B_l, B_h, [sp, #8] + ldr B_l, [src, #12] + ldr B_h, [src, #16] + strd C_l, C_h, [sp, #16] + ldr C_l, [src, #20] + ldr C_h, [src, #24] + strd D_l, D_h, [sp, #24] + ldr D_l, [src, #28] + ldr D_h, [src, #32]! + b 1f + .p2align 6 +2: + pld [src, #(5 * 64) - (32 - 4)] + strd A_l, A_h, [dst, #40] + ldr A_l, [src, #36] + ldr A_h, [src, #40] + strd B_l, B_h, [dst, #48] + ldr B_l, [src, #44] + ldr B_h, [src, #48] + strd C_l, C_h, [dst, #56] + ldr C_l, [src, #52] + ldr C_h, [src, #56] + strd D_l, D_h, [dst, #64]! + ldr D_l, [src, #60] + ldr D_h, [src, #64]! + subs tmp2, tmp2, #64 +1: + strd A_l, A_h, [dst, #8] + ldr A_l, [src, #4] + ldr A_h, [src, #8] + strd B_l, B_h, [dst, #16] + ldr B_l, [src, #12] + ldr B_h, [src, #16] + strd C_l, C_h, [dst, #24] + ldr C_l, [src, #20] + ldr C_h, [src, #24] + strd D_l, D_h, [dst, #32] + ldr D_l, [src, #28] + ldr D_h, [src, #32] + bcs 2b + + /* Save the remaining bytes and restore the callee-saved regs. */ + strd A_l, A_h, [dst, #40] + add src, src, #36 + strd B_l, B_h, [dst, #48] + ldrd B_l, B_h, [sp, #8] + strd C_l, C_h, [dst, #56] + ldrd C_l, C_h, [sp, #16] + strd D_l, D_h, [dst, #64] + ldrd D_l, D_h, [sp, #24] + add dst, dst, #72 + ands count, tmp2, #0x3f +#endif + ldr tmp2, [sp], #FRAME_SIZE + bne .Ltail63unaligned + bx lr + + .size memcpy, . - memcpy diff --git a/newlib/libc/machine/arm/memcpy-armv7m.S b/newlib/libc/machine/arm/memcpy-armv7m.S new file mode 100644 index 000000000..8a70c7d73 --- /dev/null +++ b/newlib/libc/machine/arm/memcpy-armv7m.S @@ -0,0 +1,321 @@ +/* + * Copyright (c) 2013 ARM Ltd + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the company may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* This memcpy routine is optimised for Cortex-M3/M4 cores with/without + unaligned access. + + If compiled with GCC, this file should be enclosed within following + pre-processing check: + if defined (__ARM_ARCH_7M__) || defined (__ARM_ARCH_7EM__) + + Prototype: void *memcpy (void *dst, const void *src, size_t count); + + The job will be done in 5 steps. + Step 1: Align src/dest pointers, copy mis-aligned if fail to align both + Step 2: Repeatedly copy big block size of __OPT_BIG_BLOCK_SIZE + Step 3: Repeatedly copy big block size of __OPT_MID_BLOCK_SIZE + Step 4: Copy word by word + Step 5: Copy byte-to-byte + + Tunable options: + __OPT_BIG_BLOCK_SIZE: Size of big block in words. Default to 64. + __OPT_MID_BLOCK_SIZE: Size of big block in words. Default to 16. + */ +#ifndef __OPT_BIG_BLOCK_SIZE +#define __OPT_BIG_BLOCK_SIZE (4 * 16) +#endif + +#ifndef __OPT_MID_BLOCK_SIZE +#define __OPT_MID_BLOCK_SIZE (4 * 4) +#endif + +#if __OPT_BIG_BLOCK_SIZE == 16 +#define BEGIN_UNROLL_BIG_BLOCK \ + .irp offset, 0,4,8,12 +#elif __OPT_BIG_BLOCK_SIZE == 32 +#define BEGIN_UNROLL_BIG_BLOCK \ + .irp offset, 0,4,8,12,16,20,24,28 +#elif __OPT_BIG_BLOCK_SIZE == 64 +#define BEGIN_UNROLL_BIG_BLOCK \ + .irp offset, 0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60 +#else +#error "Illegal __OPT_BIG_BLOCK_SIZE" +#endif + +#if __OPT_MID_BLOCK_SIZE == 8 +#define BEGIN_UNROLL_MID_BLOCK \ + .irp offset, 0,4 +#elif __OPT_MID_BLOCK_SIZE == 16 +#define BEGIN_UNROLL_MID_BLOCK \ + .irp offset, 0,4,8,12 +#else +#error "Illegal __OPT_MID_BLOCK_SIZE" +#endif + +#define END_UNROLL .endr + + .syntax unified + .text + .align 2 + .global memcpy + .thumb + .thumb_func + .type memcpy, %function +memcpy: + @ r0: dst + @ r1: src + @ r2: len +#ifdef __ARM_FEATURE_UNALIGNED + /* In case of UNALIGNED access supported, ip is not used in + function body. */ + mov ip, r0 +#else + push {r0} +#endif + orr r3, r1, r0 + ands r3, r3, #3 + bne .Lmisaligned_copy + +.Lbig_block: + subs r2, __OPT_BIG_BLOCK_SIZE + blo .Lmid_block + + /* Kernel loop for big block copy */ + .align 2 +.Lbig_block_loop: + BEGIN_UNROLL_BIG_BLOCK +#ifdef __ARM_ARCH_7EM__ + ldr r3, [r1], #4 + str r3, [r0], #4 + END_UNROLL +#else /* __ARM_ARCH_7M__ */ + ldr r3, [r1, \offset] + str r3, [r0, \offset] + END_UNROLL + adds r0, __OPT_BIG_BLOCK_SIZE + adds r1, __OPT_BIG_BLOCK_SIZE +#endif + subs r2, __OPT_BIG_BLOCK_SIZE + bhs .Lbig_block_loop + +.Lmid_block: + adds r2, __OPT_BIG_BLOCK_SIZE - __OPT_MID_BLOCK_SIZE + blo .Lcopy_word_by_word + + /* Kernel loop for mid-block copy */ + .align 2 +.Lmid_block_loop: + BEGIN_UNROLL_MID_BLOCK +#ifdef __ARM_ARCH_7EM__ + ldr r3, [r1], #4 + str r3, [r0], #4 + END_UNROLL +#else /* __ARM_ARCH_7M__ */ + ldr r3, [r1, \offset] + str r3, [r0, \offset] + END_UNROLL + adds r0, __OPT_MID_BLOCK_SIZE + adds r1, __OPT_MID_BLOCK_SIZE +#endif + subs r2, __OPT_MID_BLOCK_SIZE + bhs .Lmid_block_loop + +.Lcopy_word_by_word: + adds r2, __OPT_MID_BLOCK_SIZE - 4 + blo .Lcopy_less_than_4 + + /* Kernel loop for small block copy */ + .align 2 +.Lcopy_word_by_word_loop: + ldr r3, [r1], #4 + str r3, [r0], #4 + subs r2, #4 + bhs .Lcopy_word_by_word_loop + +.Lcopy_less_than_4: + adds r2, #4 + beq .Ldone + + lsls r2, r2, #31 + itt ne + ldrbne r3, [r1], #1 + strbne r3, [r0], #1 + + bcc .Ldone +#ifdef __ARM_FEATURE_UNALIGNED + ldrh r3, [r1] + strh r3, [r0] +#else + ldrb r3, [r1] + strb r3, [r0] + ldrb r3, [r1, #1] + strb r3, [r0, #1] +#endif /* __ARM_FEATURE_UNALIGNED */ + +.Ldone: +#ifdef __ARM_FEATURE_UNALIGNED + mov r0, ip +#else + pop {r0} +#endif + bx lr + + .align 2 +.Lmisaligned_copy: +#ifdef __ARM_FEATURE_UNALIGNED + /* Define label DST_ALIGNED to BIG_BLOCK. It will go to aligned copy + once destination is adjusted to aligned. */ +#define Ldst_aligned Lbig_block + + /* Copy word by word using LDR when alignment can be done in hardware, + i.e., SCTLR.A is set, supporting unaligned access in LDR and STR. */ + + cmp r2, #8 + blo .Lbyte_copy + + /* if src is aligned, just go to the big block loop. */ + lsls r3, r1, #30 + beq .Ldst_aligned +#else + /* if len < 12, misalignment adjustment has more overhead than + just byte-to-byte copy. Also, len must >=8 to guarantee code + afterward work correctly. */ + cmp r2, #12 + blo .Lbyte_copy +#endif /* __ARM_FEATURE_UNALIGNED */ + + /* Align dst only, not trying to align src. That is the because + handling of aligned src and misaligned dst need more overhead than + otherwise. By doing this the worst case is when initial src is aligned, + additional up to 4 byte additional copy will executed, which is + acceptable. */ + + ands r3, r0, #3 + beq .Ldst_aligned + + rsb r3, #4 + subs r2, r3 + + lsls r3, r3, #31 + itt ne + ldrbne r3, [r1], #1 + strbne r3, [r0], #1 + + bcc .Ldst_aligned + +#ifdef __ARM_FEATURE_UNALIGNED + ldrh r3, [r1], #2 + strh r3, [r0], #2 + b .Ldst_aligned +#else + ldrb r3, [r1], #1 + strb r3, [r0], #1 + ldrb r3, [r1], #1 + strb r3, [r0], #1 + /* Now that dst is aligned */ +.Ldst_aligned: + /* if r1 is aligned now, it means r0/r1 has the same misalignment, + and they are both aligned now. Go aligned copy. */ + ands r3, r1, #3 + beq .Lbig_block + + /* dst is aligned, but src isn't. Misaligned copy. */ + + push {r4, r5} + subs r2, #4 + + /* Backward r1 by misaligned bytes, to make r1 aligned. + Since we need to restore r1 to unaligned address after the loop, + we need keep the offset bytes to ip and sub it from r1 afterward. */ + subs r1, r3 + rsb ip, r3, #4 + + /* Pre-load on word */ + ldr r4, [r1], #4 + + cmp r3, #2 + beq .Lmisaligned_copy_2_2 + cmp r3, #3 + beq .Lmisaligned_copy_3_1 + + .macro mis_src_copy shift +1: + lsrs r4, r4, \shift + ldr r3, [r1], #4 + lsls r5, r3, 32-\shift + orr r4, r4, r5 + str r4, [r0], #4 + mov r4, r3 + subs r2, #4 + bhs 1b + .endm + +.Lmisaligned_copy_1_3: + mis_src_copy shift=8 + b .Lsrc_misaligned_tail + +.Lmisaligned_copy_3_1: + mis_src_copy shift=24 + b .Lsrc_misaligned_tail + +.Lmisaligned_copy_2_2: + /* For 2_2 misalignment, ldr is still faster than 2 x ldrh. */ + mis_src_copy shift=16 + +.Lsrc_misaligned_tail: + adds r2, #4 + subs r1, ip + pop {r4, r5} + +#endif /* __ARM_FEATURE_UNALIGNED */ + +.Lbyte_copy: + subs r2, #4 + blo .Lcopy_less_than_4 + +.Lbyte_copy_loop: + subs r2, #1 + ldrb r3, [r1], #1 + strb r3, [r0], #1 + bhs .Lbyte_copy_loop + + ldrb r3, [r1] + strb r3, [r0] + ldrb r3, [r1, #1] + strb r3, [r0, #1] + ldrb r3, [r1, #2] + strb r3, [r0, #2] + +#ifdef __ARM_FEATURE_UNALIGNED + mov r0, ip +#else + pop {r0} +#endif + bx lr + + .size memcpy, .-memcpy diff --git a/newlib/libc/machine/arm/memcpy-stub.c b/newlib/libc/machine/arm/memcpy-stub.c index 513631a9f..449d31a50 100644 --- a/newlib/libc/machine/arm/memcpy-stub.c +++ b/newlib/libc/machine/arm/memcpy-stub.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2011 ARM Ltd + * Copyright (c) 2013 ARM Ltd * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -26,10 +26,12 @@ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/* The sole purpose of this file is to include the plain memcpy provided in newlib. - An optimized version of memcpy is provided in the assembly file memcpy.S in this directory. */ +/* The sole purpose of this file is to include the plain memcpy provided + in newlib. An optimized version of memcpy is provided in the assembly + file memcpy.S in this directory. */ #if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED) || \ - (!(defined (__ARM_ARCH_7A__) && defined (__ARM_FEATURE_UNALIGNED)))) + (!((defined (__ARM_ARCH_7A__) && defined (__ARM_FEATURE_UNALIGNED)) \ + || defined (__ARM_ARCH_7EM__) || defined (__ARM_ARCH_7M__)))) #include "../../string/memcpy.c" diff --git a/newlib/libc/machine/arm/memcpy.S b/newlib/libc/machine/arm/memcpy.S index bc54bb3f5..734a19776 100644 --- a/newlib/libc/machine/arm/memcpy.S +++ b/newlib/libc/machine/arm/memcpy.S @@ -1,625 +1,39 @@ -/* Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - * Neither the name of Linaro Limited nor the names of its - contributors may be used to endorse or promote products derived - from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - This memcpy routine is optimised for Cortex-A15 cores and takes advantage - of VFP or NEON when built with the appropriate flags. - - Assumptions: - - ARMv6 (ARMv7-a if using Neon) - ARM state - Unaligned accesses - LDRD/STRD support unaligned word accesses - +/* + * Copyright (c) 2013 ARM Ltd + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the company may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED) || \ - (!(defined (__ARM_ARCH_7A__) && defined (__ARM_FEATURE_UNALIGNED)))) - +#if defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED) /* Do nothing here. See memcpy-stub.c in the same directory. */ +#elif defined (__ARM_ARCH_7A__) && defined (__ARM_FEATURE_UNALIGNED) +#include "memcpy-armv7a.S" -#else - - .syntax unified - /* This implementation requires ARM state. */ - .arm - -#ifdef __ARM_NEON__ - - .fpu neon - .arch armv7-a -# define FRAME_SIZE 4 -# define USE_VFP -# define USE_NEON - -#elif !defined (__SOFTFP__) - - .arch armv6 - .fpu vfpv2 -# define FRAME_SIZE 32 -# define USE_VFP - -#else - .arch armv6 -# define FRAME_SIZE 32 - -#endif +#elif defined (__ARM_ARCH_7M__) || defined (__ARM_ARCH_7EM__) +#include "memcpy-armv7m.S" -/* Old versions of GAS incorrectly implement the NEON align semantics. */ -#ifdef BROKEN_ASM_NEON_ALIGN -#define ALIGN(addr, align) addr,:align #else -#define ALIGN(addr, align) addr:align -#endif - -#define PC_OFFSET 8 /* PC pipeline compensation. */ -#define INSN_SIZE 4 - -/* Call parameters. */ -#define dstin r0 -#define src r1 -#define count r2 - -/* Locals. */ -#define tmp1 r3 -#define dst ip -#define tmp2 r10 - -#ifndef USE_NEON -/* For bulk copies using GP registers. */ -#define A_l r2 /* Call-clobbered. */ -#define A_h r3 /* Call-clobbered. */ -#define B_l r4 -#define B_h r5 -#define C_l r6 -#define C_h r7 -#define D_l r8 -#define D_h r9 -#endif - -/* Number of lines ahead to pre-fetch data. If you change this the code - below will need adjustment to compensate. */ - -#define prefetch_lines 5 - -#ifdef USE_VFP - .macro cpy_line_vfp vreg, base - vstr \vreg, [dst, #\base] - vldr \vreg, [src, #\base] - vstr d0, [dst, #\base + 8] - vldr d0, [src, #\base + 8] - vstr d1, [dst, #\base + 16] - vldr d1, [src, #\base + 16] - vstr d2, [dst, #\base + 24] - vldr d2, [src, #\base + 24] - vstr \vreg, [dst, #\base + 32] - vldr \vreg, [src, #\base + prefetch_lines * 64 - 32] - vstr d0, [dst, #\base + 40] - vldr d0, [src, #\base + 40] - vstr d1, [dst, #\base + 48] - vldr d1, [src, #\base + 48] - vstr d2, [dst, #\base + 56] - vldr d2, [src, #\base + 56] - .endm - - .macro cpy_tail_vfp vreg, base - vstr \vreg, [dst, #\base] - vldr \vreg, [src, #\base] - vstr d0, [dst, #\base + 8] - vldr d0, [src, #\base + 8] - vstr d1, [dst, #\base + 16] - vldr d1, [src, #\base + 16] - vstr d2, [dst, #\base + 24] - vldr d2, [src, #\base + 24] - vstr \vreg, [dst, #\base + 32] - vstr d0, [dst, #\base + 40] - vldr d0, [src, #\base + 40] - vstr d1, [dst, #\base + 48] - vldr d1, [src, #\base + 48] - vstr d2, [dst, #\base + 56] - vldr d2, [src, #\base + 56] - .endm -#endif - - .macro def_fn f p2align=0 - .text - .p2align \p2align - .global \f - .type \f, %function -\f: - .endm - -def_fn memcpy p2align=6 - - mov dst, dstin /* Preserve dstin, we need to return it. */ - cmp count, #64 - bge .Lcpy_not_short - /* Deal with small copies quickly by dropping straight into the - exit block. */ - -.Ltail63unaligned: -#ifdef USE_NEON - and tmp1, count, #0x38 - rsb tmp1, tmp1, #(56 - PC_OFFSET + INSN_SIZE) - add pc, pc, tmp1 - vld1.8 {d0}, [src]! /* 14 words to go. */ - vst1.8 {d0}, [dst]! - vld1.8 {d0}, [src]! /* 12 words to go. */ - vst1.8 {d0}, [dst]! - vld1.8 {d0}, [src]! /* 10 words to go. */ - vst1.8 {d0}, [dst]! - vld1.8 {d0}, [src]! /* 8 words to go. */ - vst1.8 {d0}, [dst]! - vld1.8 {d0}, [src]! /* 6 words to go. */ - vst1.8 {d0}, [dst]! - vld1.8 {d0}, [src]! /* 4 words to go. */ - vst1.8 {d0}, [dst]! - vld1.8 {d0}, [src]! /* 2 words to go. */ - vst1.8 {d0}, [dst]! - - tst count, #4 - ldrne tmp1, [src], #4 - strne tmp1, [dst], #4 -#else - /* Copy up to 15 full words of data. May not be aligned. */ - /* Cannot use VFP for unaligned data. */ - and tmp1, count, #0x3c - add dst, dst, tmp1 - add src, src, tmp1 - rsb tmp1, tmp1, #(60 - PC_OFFSET/2 + INSN_SIZE/2) - /* Jump directly into the sequence below at the correct offset. */ - add pc, pc, tmp1, lsl #1 - - ldr tmp1, [src, #-60] /* 15 words to go. */ - str tmp1, [dst, #-60] - - ldr tmp1, [src, #-56] /* 14 words to go. */ - str tmp1, [dst, #-56] - ldr tmp1, [src, #-52] - str tmp1, [dst, #-52] - - ldr tmp1, [src, #-48] /* 12 words to go. */ - str tmp1, [dst, #-48] - ldr tmp1, [src, #-44] - str tmp1, [dst, #-44] - - ldr tmp1, [src, #-40] /* 10 words to go. */ - str tmp1, [dst, #-40] - ldr tmp1, [src, #-36] - str tmp1, [dst, #-36] - - ldr tmp1, [src, #-32] /* 8 words to go. */ - str tmp1, [dst, #-32] - ldr tmp1, [src, #-28] - str tmp1, [dst, #-28] - - ldr tmp1, [src, #-24] /* 6 words to go. */ - str tmp1, [dst, #-24] - ldr tmp1, [src, #-20] - str tmp1, [dst, #-20] - - ldr tmp1, [src, #-16] /* 4 words to go. */ - str tmp1, [dst, #-16] - ldr tmp1, [src, #-12] - str tmp1, [dst, #-12] - - ldr tmp1, [src, #-8] /* 2 words to go. */ - str tmp1, [dst, #-8] - ldr tmp1, [src, #-4] - str tmp1, [dst, #-4] -#endif - - lsls count, count, #31 - ldrhcs tmp1, [src], #2 - ldrbne src, [src] /* Src is dead, use as a scratch. */ - strhcs tmp1, [dst], #2 - strbne src, [dst] - bx lr - -.Lcpy_not_short: - /* At least 64 bytes to copy, but don't know the alignment yet. */ - str tmp2, [sp, #-FRAME_SIZE]! - and tmp2, src, #3 - and tmp1, dst, #3 - cmp tmp1, tmp2 - bne .Lcpy_notaligned - -#ifdef USE_VFP - /* Magic dust alert! Force VFP on Cortex-A9. Experiments show - that the FP pipeline is much better at streaming loads and - stores. This is outside the critical loop. */ - vmov.f32 s0, s0 -#endif - - /* SRC and DST have the same mutual 32-bit alignment, but we may - still need to pre-copy some bytes to get to natural alignment. - We bring DST into full 64-bit alignment. */ - lsls tmp2, dst, #29 - beq 1f - rsbs tmp2, tmp2, #0 - sub count, count, tmp2, lsr #29 - ldrmi tmp1, [src], #4 - strmi tmp1, [dst], #4 - lsls tmp2, tmp2, #2 - ldrhcs tmp1, [src], #2 - ldrbne tmp2, [src], #1 - strhcs tmp1, [dst], #2 - strbne tmp2, [dst], #1 - -1: - subs tmp2, count, #64 /* Use tmp2 for count. */ - blt .Ltail63aligned - - cmp tmp2, #512 - bge .Lcpy_body_long - -.Lcpy_body_medium: /* Count in tmp2. */ -#ifdef USE_VFP -1: - vldr d0, [src, #0] - subs tmp2, tmp2, #64 - vldr d1, [src, #8] - vstr d0, [dst, #0] - vldr d0, [src, #16] - vstr d1, [dst, #8] - vldr d1, [src, #24] - vstr d0, [dst, #16] - vldr d0, [src, #32] - vstr d1, [dst, #24] - vldr d1, [src, #40] - vstr d0, [dst, #32] - vldr d0, [src, #48] - vstr d1, [dst, #40] - vldr d1, [src, #56] - vstr d0, [dst, #48] - add src, src, #64 - vstr d1, [dst, #56] - add dst, dst, #64 - bge 1b - tst tmp2, #0x3f - beq .Ldone - -.Ltail63aligned: /* Count in tmp2. */ - and tmp1, tmp2, #0x38 - add dst, dst, tmp1 - add src, src, tmp1 - rsb tmp1, tmp1, #(56 - PC_OFFSET + INSN_SIZE) - add pc, pc, tmp1 - - vldr d0, [src, #-56] /* 14 words to go. */ - vstr d0, [dst, #-56] - vldr d0, [src, #-48] /* 12 words to go. */ - vstr d0, [dst, #-48] - vldr d0, [src, #-40] /* 10 words to go. */ - vstr d0, [dst, #-40] - vldr d0, [src, #-32] /* 8 words to go. */ - vstr d0, [dst, #-32] - vldr d0, [src, #-24] /* 6 words to go. */ - vstr d0, [dst, #-24] - vldr d0, [src, #-16] /* 4 words to go. */ - vstr d0, [dst, #-16] - vldr d0, [src, #-8] /* 2 words to go. */ - vstr d0, [dst, #-8] -#else - sub src, src, #8 - sub dst, dst, #8 -1: - ldrd A_l, A_h, [src, #8] - strd A_l, A_h, [dst, #8] - ldrd A_l, A_h, [src, #16] - strd A_l, A_h, [dst, #16] - ldrd A_l, A_h, [src, #24] - strd A_l, A_h, [dst, #24] - ldrd A_l, A_h, [src, #32] - strd A_l, A_h, [dst, #32] - ldrd A_l, A_h, [src, #40] - strd A_l, A_h, [dst, #40] - ldrd A_l, A_h, [src, #48] - strd A_l, A_h, [dst, #48] - ldrd A_l, A_h, [src, #56] - strd A_l, A_h, [dst, #56] - ldrd A_l, A_h, [src, #64]! - strd A_l, A_h, [dst, #64]! - subs tmp2, tmp2, #64 - bge 1b - tst tmp2, #0x3f - bne 1f - ldr tmp2,[sp], #FRAME_SIZE - bx lr -1: - add src, src, #8 - add dst, dst, #8 - -.Ltail63aligned: /* Count in tmp2. */ - /* Copy up to 7 d-words of data. Similar to Ltail63unaligned, but - we know that the src and dest are 32-bit aligned so we can use - LDRD/STRD to improve efficiency. */ - /* TMP2 is now negative, but we don't care about that. The bottom - six bits still tell us how many bytes are left to copy. */ - - and tmp1, tmp2, #0x38 - add dst, dst, tmp1 - add src, src, tmp1 - rsb tmp1, tmp1, #(56 - PC_OFFSET + INSN_SIZE) - add pc, pc, tmp1 - ldrd A_l, A_h, [src, #-56] /* 14 words to go. */ - strd A_l, A_h, [dst, #-56] - ldrd A_l, A_h, [src, #-48] /* 12 words to go. */ - strd A_l, A_h, [dst, #-48] - ldrd A_l, A_h, [src, #-40] /* 10 words to go. */ - strd A_l, A_h, [dst, #-40] - ldrd A_l, A_h, [src, #-32] /* 8 words to go. */ - strd A_l, A_h, [dst, #-32] - ldrd A_l, A_h, [src, #-24] /* 6 words to go. */ - strd A_l, A_h, [dst, #-24] - ldrd A_l, A_h, [src, #-16] /* 4 words to go. */ - strd A_l, A_h, [dst, #-16] - ldrd A_l, A_h, [src, #-8] /* 2 words to go. */ - strd A_l, A_h, [dst, #-8] - -#endif - tst tmp2, #4 - ldrne tmp1, [src], #4 - strne tmp1, [dst], #4 - lsls tmp2, tmp2, #31 /* Count (tmp2) now dead. */ - ldrhcs tmp1, [src], #2 - ldrbne tmp2, [src] - strhcs tmp1, [dst], #2 - strbne tmp2, [dst] - -.Ldone: - ldr tmp2, [sp], #FRAME_SIZE - bx lr - -.Lcpy_body_long: /* Count in tmp2. */ - - /* Long copy. We know that there's at least (prefetch_lines * 64) - bytes to go. */ -#ifdef USE_VFP - /* Don't use PLD. Instead, read some data in advance of the current - copy position into a register. This should act like a PLD - operation but we won't have to repeat the transfer. */ - - vldr d3, [src, #0] - vldr d4, [src, #64] - vldr d5, [src, #128] - vldr d6, [src, #192] - vldr d7, [src, #256] - - vldr d0, [src, #8] - vldr d1, [src, #16] - vldr d2, [src, #24] - add src, src, #32 - - subs tmp2, tmp2, #prefetch_lines * 64 * 2 - blt 2f -1: - cpy_line_vfp d3, 0 - cpy_line_vfp d4, 64 - cpy_line_vfp d5, 128 - add dst, dst, #3 * 64 - add src, src, #3 * 64 - cpy_line_vfp d6, 0 - cpy_line_vfp d7, 64 - add dst, dst, #2 * 64 - add src, src, #2 * 64 - subs tmp2, tmp2, #prefetch_lines * 64 - bge 1b - -2: - cpy_tail_vfp d3, 0 - cpy_tail_vfp d4, 64 - cpy_tail_vfp d5, 128 - add src, src, #3 * 64 - add dst, dst, #3 * 64 - cpy_tail_vfp d6, 0 - vstr d7, [dst, #64] - vldr d7, [src, #64] - vstr d0, [dst, #64 + 8] - vldr d0, [src, #64 + 8] - vstr d1, [dst, #64 + 16] - vldr d1, [src, #64 + 16] - vstr d2, [dst, #64 + 24] - vldr d2, [src, #64 + 24] - vstr d7, [dst, #64 + 32] - add src, src, #96 - vstr d0, [dst, #64 + 40] - vstr d1, [dst, #64 + 48] - vstr d2, [dst, #64 + 56] - add dst, dst, #128 - add tmp2, tmp2, #prefetch_lines * 64 - b .Lcpy_body_medium -#else - /* Long copy. Use an SMS style loop to maximize the I/O - bandwidth of the core. We don't have enough spare registers - to synthesise prefetching, so use PLD operations. */ - /* Pre-bias src and dst. */ - sub src, src, #8 - sub dst, dst, #8 - pld [src, #8] - pld [src, #72] - subs tmp2, tmp2, #64 - pld [src, #136] - ldrd A_l, A_h, [src, #8] - strd B_l, B_h, [sp, #8] - ldrd B_l, B_h, [src, #16] - strd C_l, C_h, [sp, #16] - ldrd C_l, C_h, [src, #24] - strd D_l, D_h, [sp, #24] - pld [src, #200] - ldrd D_l, D_h, [src, #32]! - b 1f - .p2align 6 -2: - pld [src, #232] - strd A_l, A_h, [dst, #40] - ldrd A_l, A_h, [src, #40] - strd B_l, B_h, [dst, #48] - ldrd B_l, B_h, [src, #48] - strd C_l, C_h, [dst, #56] - ldrd C_l, C_h, [src, #56] - strd D_l, D_h, [dst, #64]! - ldrd D_l, D_h, [src, #64]! - subs tmp2, tmp2, #64 -1: - strd A_l, A_h, [dst, #8] - ldrd A_l, A_h, [src, #8] - strd B_l, B_h, [dst, #16] - ldrd B_l, B_h, [src, #16] - strd C_l, C_h, [dst, #24] - ldrd C_l, C_h, [src, #24] - strd D_l, D_h, [dst, #32] - ldrd D_l, D_h, [src, #32] - bcs 2b - /* Save the remaining bytes and restore the callee-saved regs. */ - strd A_l, A_h, [dst, #40] - add src, src, #40 - strd B_l, B_h, [dst, #48] - ldrd B_l, B_h, [sp, #8] - strd C_l, C_h, [dst, #56] - ldrd C_l, C_h, [sp, #16] - strd D_l, D_h, [dst, #64] - ldrd D_l, D_h, [sp, #24] - add dst, dst, #72 - tst tmp2, #0x3f - bne .Ltail63aligned - ldr tmp2, [sp], #FRAME_SIZE - bx lr -#endif - -.Lcpy_notaligned: - pld [src] - pld [src, #64] - /* There's at least 64 bytes to copy, but there is no mutual - alignment. */ - /* Bring DST to 64-bit alignment. */ - lsls tmp2, dst, #29 - pld [src, #(2 * 64)] - beq 1f - rsbs tmp2, tmp2, #0 - sub count, count, tmp2, lsr #29 - ldrmi tmp1, [src], #4 - strmi tmp1, [dst], #4 - lsls tmp2, tmp2, #2 - ldrbne tmp1, [src], #1 - ldrhcs tmp2, [src], #2 - strbne tmp1, [dst], #1 - strhcs tmp2, [dst], #2 -1: - pld [src, #(3 * 64)] - subs count, count, #64 - ldrmi tmp2, [sp], #FRAME_SIZE - bmi .Ltail63unaligned - pld [src, #(4 * 64)] - -#ifdef USE_NEON - vld1.8 {d0-d3}, [src]! - vld1.8 {d4-d7}, [src]! - subs count, count, #64 - bmi 2f -1: - pld [src, #(4 * 64)] - vst1.8 {d0-d3}, [ALIGN (dst, 64)]! - vld1.8 {d0-d3}, [src]! - vst1.8 {d4-d7}, [ALIGN (dst, 64)]! - vld1.8 {d4-d7}, [src]! - subs count, count, #64 - bpl 1b -2: - vst1.8 {d0-d3}, [ALIGN (dst, 64)]! - vst1.8 {d4-d7}, [ALIGN (dst, 64)]! - ands count, count, #0x3f -#else - /* Use an SMS style loop to maximize the I/O bandwidth. */ - sub src, src, #4 - sub dst, dst, #8 - subs tmp2, count, #64 /* Use tmp2 for count. */ - ldr A_l, [src, #4] - ldr A_h, [src, #8] - strd B_l, B_h, [sp, #8] - ldr B_l, [src, #12] - ldr B_h, [src, #16] - strd C_l, C_h, [sp, #16] - ldr C_l, [src, #20] - ldr C_h, [src, #24] - strd D_l, D_h, [sp, #24] - ldr D_l, [src, #28] - ldr D_h, [src, #32]! - b 1f - .p2align 6 -2: - pld [src, #(5 * 64) - (32 - 4)] - strd A_l, A_h, [dst, #40] - ldr A_l, [src, #36] - ldr A_h, [src, #40] - strd B_l, B_h, [dst, #48] - ldr B_l, [src, #44] - ldr B_h, [src, #48] - strd C_l, C_h, [dst, #56] - ldr C_l, [src, #52] - ldr C_h, [src, #56] - strd D_l, D_h, [dst, #64]! - ldr D_l, [src, #60] - ldr D_h, [src, #64]! - subs tmp2, tmp2, #64 -1: - strd A_l, A_h, [dst, #8] - ldr A_l, [src, #4] - ldr A_h, [src, #8] - strd B_l, B_h, [dst, #16] - ldr B_l, [src, #12] - ldr B_h, [src, #16] - strd C_l, C_h, [dst, #24] - ldr C_l, [src, #20] - ldr C_h, [src, #24] - strd D_l, D_h, [dst, #32] - ldr D_l, [src, #28] - ldr D_h, [src, #32] - bcs 2b - - /* Save the remaining bytes and restore the callee-saved regs. */ - strd A_l, A_h, [dst, #40] - add src, src, #36 - strd B_l, B_h, [dst, #48] - ldrd B_l, B_h, [sp, #8] - strd C_l, C_h, [dst, #56] - ldrd C_l, C_h, [sp, #16] - strd D_l, D_h, [dst, #64] - ldrd D_l, D_h, [sp, #24] - add dst, dst, #72 - ands count, tmp2, #0x3f + /* Do nothing here. See memcpy-stub.c in the same directory. */ #endif - ldr tmp2, [sp], #FRAME_SIZE - bne .Ltail63unaligned - bx lr - - .size memcpy, . - memcpy - -#endif /* memcpy */ diff --git a/newlib/libc/machine/arm/strcmp.S b/newlib/libc/machine/arm/strcmp.S index 0a4057e3b..6926b2ec3 100644 --- a/newlib/libc/machine/arm/strcmp.S +++ b/newlib/libc/machine/arm/strcmp.S @@ -55,6 +55,13 @@ #if defined (__thumb__) .thumb .thumb_func +#if !defined (__thumb2__) + /* If we have thumb1 only, we need to explictly mark the + compatibility. */ + .arch armv4t + .eabi_attribute Tag_also_compatible_with, "\006\013" /* v6-M. */ + .eabi_attribute Tag_ARM_ISA_use, 0 +#endif #endif .global strcmp .type strcmp, %function diff --git a/newlib/libc/machine/configure b/newlib/libc/machine/configure index 7b0b26a75..a8bbe9984 100755 --- a/newlib/libc/machine/configure +++ b/newlib/libc/machine/configure @@ -814,8 +814,10 @@ mips mn10200 mn10300 moxie +msp430 mt necv70 +nios2 powerpc rl78 rx @@ -11469,7 +11471,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11472 "configure" +#line 11473 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -11575,7 +11577,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 11578 "configure" +#line 11579 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -11878,10 +11880,14 @@ subdirs="$subdirs a29k" ;; moxie) subdirs="$subdirs moxie" ;; + msp430) subdirs="$subdirs msp430" + ;; mt) subdirs="$subdirs mt" ;; necv70) subdirs="$subdirs necv70" ;; + nios2) subdirs="$subdirs nios2" + ;; powerpc) subdirs="$subdirs powerpc" ;; rl78) subdirs="$subdirs rl78" diff --git a/newlib/libc/machine/configure.in b/newlib/libc/machine/configure.in index 7cdb2a1ec..5314175c2 100644 --- a/newlib/libc/machine/configure.in +++ b/newlib/libc/machine/configure.in @@ -53,8 +53,10 @@ if test -n "${machine_dir}"; then mn10200) AC_CONFIG_SUBDIRS(mn10200) ;; mn10300) AC_CONFIG_SUBDIRS(mn10300) ;; moxie) AC_CONFIG_SUBDIRS(moxie) ;; + msp430) AC_CONFIG_SUBDIRS(msp430) ;; mt) AC_CONFIG_SUBDIRS(mt) ;; necv70) AC_CONFIG_SUBDIRS(necv70) ;; + nios2) AC_CONFIG_SUBDIRS(nios2) ;; powerpc) AC_CONFIG_SUBDIRS(powerpc) ;; rl78) AC_CONFIG_SUBDIRS(rl78) ;; rx) AC_CONFIG_SUBDIRS(rx) ;; diff --git a/newlib/libc/machine/epiphany/Makefile.am b/newlib/libc/machine/epiphany/Makefile.am deleted file mode 100644 index 6e95d8fc8..000000000 --- a/newlib/libc/machine/epiphany/Makefile.am +++ /dev/null @@ -1,42 +0,0 @@ -## Copyright (c) 2011, Adapteva, Inc. -## All rights reserved. - -## Redistribution and use in source and binary forms, with or without -## modification, are permitted provided that the following conditions are met: -## * Redistributions of source code must retain the above copyright notice, -## this list of conditions and the following disclaimer. -## * Redistributions in binary form must reproduce the above copyright -## notice, this list of conditions and the following disclaimer in the -## documentation and/or other materials provided with the distribution. -## * Neither the name of Adapteva nor the names of its contributors may be -## used to endorse or promote products derived from this software without -## specific prior written permission. - -## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -## AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -## ARE DISCLAIMED. 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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE -dnl LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -dnl CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -dnl SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -dnl INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -dnl CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -dnl ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -dnl POSSIBILITY OF SUCH DAMAGE. - -dnl Process this file with autoconf to produce a configure script. - -AC_PREREQ(2.59) -AC_INIT([newlib],[NEWLIB_VERSION]) -AC_CONFIG_SRCDIR([Makefile.am]) - -dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake. -AC_CONFIG_AUX_DIR(../../../..) - -NEWLIB_CONFIGURE(../../..) - -AC_CONFIG_FILES([Makefile]) -AC_OUTPUT diff --git a/newlib/libc/machine/epiphany/machine/stdlib.h b/newlib/libc/machine/epiphany/machine/stdlib.h deleted file mode 100644 index 95b4063b0..000000000 --- a/newlib/libc/machine/epiphany/machine/stdlib.h +++ /dev/null @@ -1,15 +0,0 @@ -static __inline__ long int -random (void) -{ - extern int rand(void); - - return rand (); -} - -static __inline__ void -srandom (unsigned int seed) -{ - void srand(unsigned int seed); - - srand (seed); -} diff --git a/newlib/libc/machine/epiphany/setjmp.S b/newlib/libc/machine/epiphany/setjmp.S deleted file mode 100644 index 2986bb47a..000000000 --- a/newlib/libc/machine/epiphany/setjmp.S +++ /dev/null @@ -1,65 +0,0 @@ -/* setjmp and longjmp - - Copyright (c) 2011, Adapteva, Inc. - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of Adapteva nor the names of its contributors may be - used to endorse or promote products derived from this software without - specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - POSSIBILITY OF SUCH DAMAGE. */ - - .file "setjmp.S" - .section .text - .align 4 - .global _setjmp - .type _setjmp, %function -_setjmp: - strd lr,[r0] - strd r4,[r0,1] - strd r6,[r0,2] - strd r8,[r0,3] - strd r10,[r0,4] - strd r32,[r0,5] - strd r34,[r0,6] - strd r36,[r0,7] - strd r38,[r0,8] - str sp,[r0,18] - mov r0,#0 - rts - .size _setjmp, .-_setjmp - - .global _longjmp -_longjmp: - ldrd lr,[r0] ; return address / r15 - ldrd r4,[r0,1] - ldrd r6,[r0,2] - ldrd r8,[r0,3] - ldrd r10,[r0,4] - ldrd r32,[r0,5] - ldrd r34,[r0,6] - ldrd r36,[r0,7] - ldrd r38,[r0,8] - ldr sp,[r0,18] - sub r1,r1,0 - mov r0,#1 - movne r0,r1 - jr lr - .size _longjmp, .-_longjmp diff --git a/newlib/libc/machine/powerpc/Makefile.am b/newlib/libc/machine/powerpc/Makefile.am index ef8a66792..60f49741d 100644 --- a/newlib/libc/machine/powerpc/Makefile.am +++ b/newlib/libc/machine/powerpc/Makefile.am @@ -10,7 +10,7 @@ noinst_LIBRARIES = lib.a AM_CFLAGS = -I $(srcdir)/../../stdio -I $(srcdir)/../../stdlib -lib_a_SOURCES = setjmp.S times.c +lib_a_SOURCES = setjmp.S lib_a_CCASFLAGS=$(AM_CCASFLAGS) lib_a_CFLAGS=$(AM_CFLAGS) lib_a_LIBADD = @extra_objs@ diff --git a/newlib/libc/machine/powerpc/Makefile.in b/newlib/libc/machine/powerpc/Makefile.in index ee1c8bbaa..047d42207 100644 --- a/newlib/libc/machine/powerpc/Makefile.in +++ b/newlib/libc/machine/powerpc/Makefile.in @@ -68,7 +68,7 @@ CONFIG_CLEAN_VPATH_FILES = LIBRARIES = $(noinst_LIBRARIES) ARFLAGS = cru lib_a_AR = $(AR) $(ARFLAGS) -am_lib_a_OBJECTS = lib_a-setjmp.$(OBJEXT) lib_a-times.$(OBJEXT) +am_lib_a_OBJECTS = lib_a-setjmp.$(OBJEXT) lib_a_OBJECTS = $(am_lib_a_OBJECTS) DEFAULT_INCLUDES = -I.@am__isrc@ depcomp = @@ -197,7 +197,7 @@ INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS) AM_CCASFLAGS = $(INCLUDES) noinst_LIBRARIES = lib.a AM_CFLAGS = -I $(srcdir)/../../stdio -I $(srcdir)/../../stdlib -lib_a_SOURCES = setjmp.S times.c +lib_a_SOURCES = setjmp.S lib_a_CCASFLAGS = $(AM_CCASFLAGS) lib_a_CFLAGS = $(AM_CFLAGS) lib_a_LIBADD = @extra_objs@ @@ -208,7 +208,7 @@ VEC_MALLOC_COMPILE = $(COMPILE) -DINTERNAL_NEWLIB all: all-am .SUFFIXES: -.SUFFIXES: .S .c .o .obj +.SUFFIXES: .S .o .obj am--refresh: Makefile @: $(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(am__configure_deps) @@ -269,18 +269,6 @@ lib_a-setjmp.o: setjmp.S lib_a-setjmp.obj: setjmp.S $(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CCASFLAGS) $(CCASFLAGS) -c -o lib_a-setjmp.obj `if test -f 'setjmp.S'; then $(CYGPATH_W) 'setjmp.S'; else $(CYGPATH_W) '$(srcdir)/setjmp.S'; fi` -.c.o: - $(COMPILE) -c $< - -.c.obj: - $(COMPILE) -c `$(CYGPATH_W) '$<'` - -lib_a-times.o: times.c - $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-times.o `test -f 'times.c' || echo '$(srcdir)/'`times.c - -lib_a-times.obj: times.c - $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-times.obj `if test -f 'times.c'; then $(CYGPATH_W) 'times.c'; else $(CYGPATH_W) '$(srcdir)/times.c'; fi` - ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES) list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \ unique=`for i in $$list; do \ diff --git a/newlib/libc/machine/powerpc/times.c b/newlib/libc/machine/powerpc/times.c deleted file mode 100644 index 64f4ddcb8..000000000 --- a/newlib/libc/machine/powerpc/times.c +++ /dev/null @@ -1,36 +0,0 @@ -/* Time support routines for PowerPC. - * - * Written by Aldy Hernandez. - */ - -#include <_ansi.h> -#include <reent.h> -#include <sys/time.h> -#include <sys/times.h> -#include <sys/resource.h> - -clock_t -times (struct tms *tp) -{ - struct rusage usage; - union { - struct rusage r; - /* Newlib's rusage has only 2 fields. We need to make room for - when we call the system's rusage. This should be enough. */ - int filler[32]; - } host_ru; - - getrusage (RUSAGE_SELF, (void *)&host_ru); - - if (tp) - { - tp->tms_utime = host_ru.r.ru_utime.tv_sec * 1000 - + host_ru.r.ru_utime.tv_usec; - tp->tms_stime = host_ru.r.ru_stime.tv_sec * 1000 - + host_ru.r.ru_stime.tv_usec; - tp->tms_cutime = 0; /* user time, children */ - tp->tms_cstime = 0; /* system time, children */ - } - - return tp->tms_utime; -} diff --git a/newlib/libc/reent/reent.c b/newlib/libc/reent/reent.c index 63812db83..9f5a8c0d3 100644 --- a/newlib/libc/reent/reent.c +++ b/newlib/libc/reent/reent.c @@ -87,10 +87,14 @@ _DEFUN (_reclaim_reent, (ptr), _free_r (ptr, ptr->_localtime_buf); if (ptr->_asctime_buf) _free_r (ptr, ptr->_asctime_buf); +#endif + +#ifndef _REENT_GLOBAL_ATEXIT + /* atexit stuff */ +# ifdef _REENT_SMALL if (ptr->_atexit && ptr->_atexit->_on_exit_args_ptr) _free_r (ptr, ptr->_atexit->_on_exit_args_ptr); -#else - /* atexit stuff */ +# else if ((ptr->_atexit) && (ptr->_atexit != &ptr->_atexit0)) { struct _atexit *p, *q; @@ -101,6 +105,7 @@ _DEFUN (_reclaim_reent, (ptr), _free_r (ptr, q); } } +# endif #endif if (ptr->_cvtbuf) @@ -120,32 +125,3 @@ _DEFUN (_reclaim_reent, (ptr), } } - -/* - * Do atexit() processing and cleanup - * - * NOTE: This is to be executed at task exit. It does not tear anything - * down which is used on a global basis. - */ - -void -_DEFUN (_wrapup_reent, (ptr), struct _reent *ptr) -{ - register struct _atexit *p; - register int n; - - if (ptr == NULL) - ptr = _REENT; - -#ifdef _REENT_SMALL - for (p = ptr->_atexit, n = p ? p->_ind : 0; --n >= 0;) - (*p->_fns[n]) (); -#else - for (p = ptr->_atexit; p; p = p->_next) - for (n = p->_ind; --n >= 0;) - (*p->_fns[n]) (); -#endif - if (ptr->__cleanup) - (*ptr->__cleanup) (ptr); -} - diff --git a/newlib/libc/stdio/fgetc.c b/newlib/libc/stdio/fgetc.c index 99d8330fe..20492d24b 100644 --- a/newlib/libc/stdio/fgetc.c +++ b/newlib/libc/stdio/fgetc.c @@ -92,9 +92,11 @@ _DEFUN(fgetc, (fp), { #if !defined(PREFER_SIZE_OVER_SPEED) && !defined(__OPTIMIZE_SIZE__) int result; - CHECK_INIT(_REENT, fp); + struct _reent *reent = _REENT; + + CHECK_INIT(reent, fp); _newlib_flockfile_start (fp); - result = __sgetc_r (_REENT, fp); + result = __sgetc_r (reent, fp); _newlib_flockfile_end (fp); return result; #else diff --git a/newlib/libc/stdio/fgetwc.c b/newlib/libc/stdio/fgetwc.c index 0eaaecb2f..14c554786 100644 --- a/newlib/libc/stdio/fgetwc.c +++ b/newlib/libc/stdio/fgetwc.c @@ -175,6 +175,8 @@ wint_t _DEFUN(fgetwc, (fp), FILE *fp) { - CHECK_INIT(_REENT, fp); - return _fgetwc_r (_REENT, fp); + struct _reent *reent = _REENT; + + CHECK_INIT(reent, fp); + return _fgetwc_r (reent, fp); } diff --git a/newlib/libc/stdio/fgetws.c b/newlib/libc/stdio/fgetws.c index 3cf45a976..b5d8851e1 100644 --- a/newlib/libc/stdio/fgetws.c +++ b/newlib/libc/stdio/fgetws.c @@ -160,6 +160,8 @@ _DEFUN(fgetws, (ws, n, fp), int n _AND FILE *fp) { - CHECK_INIT (_REENT, fp); - return _fgetws_r (_REENT, ws, n, fp); + struct _reent *reent = _REENT; + + CHECK_INIT (reent, fp); + return _fgetws_r (reent, ws, n, fp); } diff --git a/newlib/libc/stdio/findfp.c b/newlib/libc/stdio/findfp.c index 7ab3bdba5..e40500a07 100644 --- a/newlib/libc/stdio/findfp.c +++ b/newlib/libc/stdio/findfp.c @@ -62,7 +62,11 @@ _DEFUN(std, (ptr, flags, file, data), ptr->_flags |= __SL64; #endif /* __LARGE64_FILES */ ptr->_seek = __sseek; +#ifdef _STDIO_CLOSE_PER_REENT_STD_STREAMS ptr->_close = __sclose; +#else /* _STDIO_CLOSE_STD_STREAMS */ + ptr->_close = NULL; +#endif /* _STDIO_CLOSE_STD_STREAMS */ #if !defined(__SINGLE_THREAD__) && !defined(_REENT_SMALL) __lock_init_recursive (ptr->_lock); /* diff --git a/newlib/libc/stdio/fputc.c b/newlib/libc/stdio/fputc.c index 6af79d470..f380717d1 100644 --- a/newlib/libc/stdio/fputc.c +++ b/newlib/libc/stdio/fputc.c @@ -97,9 +97,11 @@ _DEFUN(fputc, (ch, file), { #if !defined(__OPTIMIZE_SIZE__) && !defined(PREFER_SIZE_OVER_SPEED) int result; - CHECK_INIT(_REENT, file); + struct _reent *reent = _REENT; + + CHECK_INIT(reent, file); _newlib_flockfile_start (file); - result = _putc_r (_REENT, ch, file); + result = _putc_r (reent, ch, file); _newlib_flockfile_end (file); return result; #else diff --git a/newlib/libc/stdio/fputwc.c b/newlib/libc/stdio/fputwc.c index 74e7a452c..5ec85d1ab 100644 --- a/newlib/libc/stdio/fputwc.c +++ b/newlib/libc/stdio/fputwc.c @@ -172,6 +172,8 @@ _DEFUN(fputwc, (wc, fp), wchar_t wc _AND FILE *fp) { - CHECK_INIT(_REENT, fp); - return _fputwc_r (_REENT, wc, fp); + struct _reent *reent = _REENT; + + CHECK_INIT(reent, fp); + return _fputwc_r (reent, wc, fp); } diff --git a/newlib/libc/stdio/fputws.c b/newlib/libc/stdio/fputws.c index 0893b3c33..a28a5551b 100644 --- a/newlib/libc/stdio/fputws.c +++ b/newlib/libc/stdio/fputws.c @@ -145,6 +145,8 @@ _DEFUN(fputws, (ws, fp), const wchar_t *ws _AND FILE *fp) { - CHECK_INIT (_REENT, fp); - return _fputws_r (_REENT, ws, fp); + struct _reent *reent = _REENT; + + CHECK_INIT (reent, fp); + return _fputws_r (reent, ws, fp); } diff --git a/newlib/libc/stdio/getc.c b/newlib/libc/stdio/getc.c index 355b19131..7951cdc93 100644 --- a/newlib/libc/stdio/getc.c +++ b/newlib/libc/stdio/getc.c @@ -105,9 +105,11 @@ _DEFUN(getc, (fp), register FILE *fp) { int result; - CHECK_INIT (_REENT, fp); + struct _reent *reent = _REENT; + + CHECK_INIT (reent, fp); _newlib_flockfile_start (fp); - result = __sgetc_r (_REENT, fp); + result = __sgetc_r (reent, fp); _newlib_flockfile_end (fp); return result; } diff --git a/newlib/libc/stdio/getchar.c b/newlib/libc/stdio/getchar.c index da2f5dfaf..7f3ceac62 100644 --- a/newlib/libc/stdio/getchar.c +++ b/newlib/libc/stdio/getchar.c @@ -91,9 +91,11 @@ _DEFUN(_getchar_r, (reent), int _DEFUN_VOID(getchar) { + struct _reent *reent = _REENT; + /* CHECK_INIT is called (eventually) by __srefill_r. */ - _REENT_SMALL_CHECK_INIT (_REENT); - return _getc_r (_REENT, _stdin_r (_REENT)); + _REENT_SMALL_CHECK_INIT (reent); + return _getc_r (reent, _stdin_r (reent)); } #endif diff --git a/newlib/libc/stdio/local.h b/newlib/libc/stdio/local.h index cbfeac77d..54854b49d 100644 --- a/newlib/libc/stdio/local.h +++ b/newlib/libc/stdio/local.h @@ -32,6 +32,16 @@ # include <io.h> #endif +/* The following define determines if the per-reent stdin, stdout and stderr + streams are closed during _reclaim_reent(). The stdin, stdout and stderr + streams are initialized to use file descriptors 0, 1 and 2 respectively. In + case _STDIO_CLOSE_PER_REENT_STD_STREAMS is defined these file descriptors + will be closed via close() provided the owner of the reent structure + triggerd the on demand reent initilization, see CHECK_INIT(). */ +#ifndef __rtems__ +#define _STDIO_CLOSE_PER_REENT_STD_STREAMS +#endif + /* The following macros are supposed to replace calls to _flockfile/_funlockfile and __sfp_lock_acquire/__sfp_lock_release. In case of multi-threaded environments using pthreads, it's not sufficient to lock the stdio functions @@ -165,34 +175,37 @@ extern _READ_WRITE_RETURN_TYPE _EXFUN(__swrite64,(struct _reent *, void *, #ifdef _REENT_SMALL #define CHECK_INIT(ptr, fp) \ - do \ - { \ - if ((ptr) && !(ptr)->__sdidinit) \ - __sinit (ptr); \ - if ((fp) == (FILE *)&__sf_fake_stdin) \ - (fp) = _stdin_r(ptr); \ - else if ((fp) == (FILE *)&__sf_fake_stdout) \ - (fp) = _stdout_r(ptr); \ - else if ((fp) == (FILE *)&__sf_fake_stderr) \ - (fp) = _stderr_r(ptr); \ - } \ + do \ + { \ + struct _reent *_check_init_ptr = (ptr); \ + if ((_check_init_ptr) && !(_check_init_ptr)->__sdidinit) \ + __sinit (_check_init_ptr); \ + if ((fp) == (FILE *)&__sf_fake_stdin) \ + (fp) = _stdin_r(_check_init_ptr); \ + else if ((fp) == (FILE *)&__sf_fake_stdout) \ + (fp) = _stdout_r(_check_init_ptr); \ + else if ((fp) == (FILE *)&__sf_fake_stderr) \ + (fp) = _stderr_r(_check_init_ptr); \ + } \ while (0) #else /* !_REENT_SMALL */ #define CHECK_INIT(ptr, fp) \ - do \ - { \ - if ((ptr) && !(ptr)->__sdidinit) \ - __sinit (ptr); \ - } \ + do \ + { \ + struct _reent *_check_init_ptr = (ptr); \ + if ((_check_init_ptr) && !(_check_init_ptr)->__sdidinit) \ + __sinit (_check_init_ptr); \ + } \ while (0) #endif /* !_REENT_SMALL */ #define CHECK_STD_INIT(ptr) \ - do \ - { \ - if ((ptr) && !(ptr)->__sdidinit) \ - __sinit (ptr); \ - } \ + do \ + { \ + struct _reent *_check_init_ptr = (ptr); \ + if ((_check_init_ptr) && !(_check_init_ptr)->__sdidinit) \ + __sinit (_check_init_ptr); \ + } \ while (0) /* Return true and set errno and stream error flag iff the given FILE diff --git a/newlib/libc/stdio/putc.c b/newlib/libc/stdio/putc.c index 1115bf40d..2b1fd1bf3 100644 --- a/newlib/libc/stdio/putc.c +++ b/newlib/libc/stdio/putc.c @@ -111,9 +111,11 @@ _DEFUN(putc, (c, fp), { #if !defined(PREFER_SIZE_OVER_SPEED) && !defined(__OPTIMIZE_SIZE__) int result; - CHECK_INIT (_REENT, fp); + struct _reent *reent = _REENT; + + CHECK_INIT (reent, fp); _newlib_flockfile_start (fp); - result = __sputc_r (_REENT, c, fp); + result = __sputc_r (reent, c, fp); _newlib_flockfile_end (fp); return result; #else diff --git a/newlib/libc/stdio/putchar.c b/newlib/libc/stdio/putchar.c index 06bcbb46e..bb27dc4e6 100644 --- a/newlib/libc/stdio/putchar.c +++ b/newlib/libc/stdio/putchar.c @@ -90,8 +90,10 @@ int _DEFUN(putchar, (c), int c) { - _REENT_SMALL_CHECK_INIT (_REENT); - return _putc_r (_REENT, c, _stdout_r (_REENT)); + struct _reent *reent = _REENT; + + _REENT_SMALL_CHECK_INIT (reent); + return _putc_r (reent, c, _stdout_r (reent)); } #endif diff --git a/newlib/libc/stdio/scanf.c b/newlib/libc/stdio/scanf.c index 68fd8fb65..19c85be4f 100644 --- a/newlib/libc/stdio/scanf.c +++ b/newlib/libc/stdio/scanf.c @@ -38,14 +38,15 @@ scanf(fmt, va_alist) { int ret; va_list ap; + struct _reent *reent = _REENT; - _REENT_SMALL_CHECK_INIT (_REENT); + _REENT_SMALL_CHECK_INIT (reent); #ifdef _HAVE_STDC va_start (ap, fmt); #else va_start (ap); #endif - ret = _vfscanf_r (_REENT, _stdin_r (_REENT), fmt, ap); + ret = _vfscanf_r (reent, _stdin_r (reent), fmt, ap); va_end (ap); return ret; } diff --git a/newlib/libc/stdio/setvbuf.c b/newlib/libc/stdio/setvbuf.c index 63f1f80db..41bdff6b6 100644 --- a/newlib/libc/stdio/setvbuf.c +++ b/newlib/libc/stdio/setvbuf.c @@ -103,8 +103,9 @@ _DEFUN(setvbuf, (fp, buf, mode, size), register size_t size) { int ret = 0; + struct _reent *reent = _REENT; - CHECK_INIT (_REENT, fp); + CHECK_INIT (reent, fp); _newlib_flockfile_start (fp); @@ -126,11 +127,11 @@ _DEFUN(setvbuf, (fp, buf, mode, size), * non buffer flags, and clear malloc flag. */ - _fflush_r (_REENT, fp); + _fflush_r (reent, fp); fp->_r = 0; fp->_lbfsize = 0; if (fp->_flags & __SMBF) - _free_r (_REENT, (_PTR) fp->_bf._base); + _free_r (reent, (_PTR) fp->_bf._base); fp->_flags &= ~(__SLBF | __SNBF | __SMBF); if (mode == _IONBF) @@ -180,7 +181,7 @@ nbf: case _IOFBF: /* no flag */ - _REENT->__cleanup = _cleanup_r; + reent->__cleanup = _cleanup_r; fp->_bf._base = fp->_p = (unsigned char *) buf; fp->_bf._size = size; break; diff --git a/newlib/libc/stdio/ungetwc.c b/newlib/libc/stdio/ungetwc.c index ee0d7fc75..a69449eb2 100644 --- a/newlib/libc/stdio/ungetwc.c +++ b/newlib/libc/stdio/ungetwc.c @@ -110,6 +110,8 @@ _DEFUN(ungetwc, (wint_t wc, FILE *fp), wint_t wc _AND FILE *fp) { - CHECK_INIT (_REENT, fp); - return _ungetwc_r (_REENT, wc, fp); + struct _reent *reent = _REENT; + + CHECK_INIT (reent, fp); + return _ungetwc_r (reent, wc, fp); } diff --git a/newlib/libc/stdio/vfscanf.c b/newlib/libc/stdio/vfscanf.c index e967719b7..ae94cea3f 100644 --- a/newlib/libc/stdio/vfscanf.c +++ b/newlib/libc/stdio/vfscanf.c @@ -266,8 +266,10 @@ _DEFUN(VFSCANF, (fp, fmt, ap), _CONST char *fmt _AND va_list ap) { - CHECK_INIT(_REENT, fp); - return __SVFSCANF_R (_REENT, fp, fmt, ap); + struct _reent *reent = _REENT; + + CHECK_INIT(reent, fp); + return __SVFSCANF_R (reent, fp, fmt, ap); } int diff --git a/newlib/libc/stdio/vfwscanf.c b/newlib/libc/stdio/vfwscanf.c index 5d2388df8..3379b5e19 100644 --- a/newlib/libc/stdio/vfwscanf.c +++ b/newlib/libc/stdio/vfwscanf.c @@ -258,8 +258,10 @@ _DEFUN(VFWSCANF, (fp, fmt, ap), _CONST wchar_t *fmt _AND va_list ap) { - CHECK_INIT(_REENT, fp); - return __SVFWSCANF_R (_REENT, fp, fmt, ap); + struct _reent *reent = _REENT; + + CHECK_INIT(reent, fp); + return __SVFWSCANF_R (reent, fp, fmt, ap); } int diff --git a/newlib/libc/stdio/viprintf.c b/newlib/libc/stdio/viprintf.c index 3717f3a08..fec92fa8a 100644 --- a/newlib/libc/stdio/viprintf.c +++ b/newlib/libc/stdio/viprintf.c @@ -109,8 +109,10 @@ _DEFUN(viprintf, (fmt, ap), _CONST char *fmt _AND va_list ap) { - _REENT_SMALL_CHECK_INIT (_REENT); - return _vfiprintf_r (_REENT, _stdout_r (_REENT), fmt, ap); + struct _reent *reent = _REENT; + + _REENT_SMALL_CHECK_INIT (reent); + return _vfiprintf_r (reent, _stdout_r (reent), fmt, ap); } #endif /* !_REENT_ONLY */ diff --git a/newlib/libc/stdio/viscanf.c b/newlib/libc/stdio/viscanf.c index a60c32ff0..9a7d0c5f2 100644 --- a/newlib/libc/stdio/viscanf.c +++ b/newlib/libc/stdio/viscanf.c @@ -127,8 +127,10 @@ _DEFUN(viscanf, (fmt, ap), _CONST char *fmt _AND va_list ap) { - _REENT_SMALL_CHECK_INIT (_REENT); - return __svfiscanf_r (_REENT, _stdin_r (_REENT), fmt, ap); + struct _reent *reent = _REENT; + + _REENT_SMALL_CHECK_INIT (reent); + return __svfiscanf_r (reent, _stdin_r (reent), fmt, ap); } #endif /* !_REENT_ONLY */ diff --git a/newlib/libc/stdio/vprintf.c b/newlib/libc/stdio/vprintf.c index 69edc87ae..375656972 100644 --- a/newlib/libc/stdio/vprintf.c +++ b/newlib/libc/stdio/vprintf.c @@ -33,8 +33,10 @@ _DEFUN(vprintf, (fmt, ap), _CONST char *fmt _AND va_list ap) { - _REENT_SMALL_CHECK_INIT (_REENT); - return _vfprintf_r (_REENT, _stdout_r (_REENT), fmt, ap); + struct _reent *reent = _REENT; + + _REENT_SMALL_CHECK_INIT (reent); + return _vfprintf_r (reent, _stdout_r (reent), fmt, ap); } #endif /* !_REENT_ONLY */ diff --git a/newlib/libc/stdio/vscanf.c b/newlib/libc/stdio/vscanf.c index e559b77a8..210774b05 100644 --- a/newlib/libc/stdio/vscanf.c +++ b/newlib/libc/stdio/vscanf.c @@ -34,8 +34,10 @@ _DEFUN(vscanf, (fmt, ap), _CONST char *fmt _AND va_list ap) { - _REENT_SMALL_CHECK_INIT (_REENT); - return __svfscanf_r (_REENT, _stdin_r (_REENT), fmt, ap); + struct _reent *reent = _REENT; + + _REENT_SMALL_CHECK_INIT (reent); + return __svfscanf_r (reent, _stdin_r (reent), fmt, ap); } #endif /* !_REENT_ONLY */ diff --git a/newlib/libc/stdio/vwprintf.c b/newlib/libc/stdio/vwprintf.c index ce28fdabb..de95346a0 100644 --- a/newlib/libc/stdio/vwprintf.c +++ b/newlib/libc/stdio/vwprintf.c @@ -30,8 +30,10 @@ _DEFUN(vwprintf, (fmt, ap), _CONST wchar_t *fmt _AND va_list ap) { - _REENT_SMALL_CHECK_INIT (_REENT); - return _vfwprintf_r (_REENT, _stdout_r (_REENT), fmt, ap); + struct _reent *reent = _REENT; + + _REENT_SMALL_CHECK_INIT (reent); + return _vfwprintf_r (reent, _stdout_r (reent), fmt, ap); } #endif /* !_REENT_ONLY */ diff --git a/newlib/libc/stdio/vwscanf.c b/newlib/libc/stdio/vwscanf.c index 3c60fbb73..d0b535170 100644 --- a/newlib/libc/stdio/vwscanf.c +++ b/newlib/libc/stdio/vwscanf.c @@ -33,8 +33,10 @@ int vwscanf (_CONST wchar_t *fmt, va_list ap) { - _REENT_SMALL_CHECK_INIT (_REENT); - return __svfwscanf_r (_REENT, _stdin_r (_REENT), fmt, ap); + struct _reent *reent = _REENT; + + _REENT_SMALL_CHECK_INIT (reent); + return __svfwscanf_r (reent, _stdin_r (reent), fmt, ap); } #endif /* !_REENT_ONLY */ diff --git a/newlib/libc/stdio/wscanf.c b/newlib/libc/stdio/wscanf.c index abe8dc07a..9fee3c176 100644 --- a/newlib/libc/stdio/wscanf.c +++ b/newlib/libc/stdio/wscanf.c @@ -29,10 +29,11 @@ wscanf(_CONST wchar_t *fmt, ...) { int ret; va_list ap; + struct _reent *reent = _REENT; - _REENT_SMALL_CHECK_INIT (_REENT); + _REENT_SMALL_CHECK_INIT (reent); va_start (ap, fmt); - ret = _vfwscanf_r (_REENT, _stdin_r (_REENT), fmt, ap); + ret = _vfwscanf_r (reent, _stdin_r (reent), fmt, ap); va_end (ap); return ret; } diff --git a/newlib/libc/stdlib/Makefile.am b/newlib/libc/stdlib/Makefile.am index 38120e6e2..22fedcc84 100644 --- a/newlib/libc/stdlib/Makefile.am +++ b/newlib/libc/stdlib/Makefile.am @@ -66,12 +66,40 @@ GENERAL_SOURCES += \ wcstold.c endif # HAVE_LONG_DOUBLE +if NEWLIB_NANO_MALLOC +MALIGNR=nano-malignr +MALLOPTR=nano-malloptr +PVALLOCR=nano-pvallocr +VALLOCR=nano-vallocr +FREER=nano-freer +REALLOCR=nano-reallocr +CALLOCR=nano-callocr +CFREER=nano-cfreer +MALLINFOR=nano-mallinfor +MALLSTATSR=nano-mallstatsr +MSIZER=nano-msizer +MALLOCR=nano-mallocr +else +MALIGNR=malignr +MALLOPTR=malloptr +PVALLOCR=pvallocr +VALLOCR=vallocr +FREER=freer +REALLOCR=reallocr +CALLOCR=callocr +CFREER=cfreer +MALLINFOR=mallinfor +MALLSTATSR=mallstatsr +MSIZER=msizer +MALLOCR=mallocr +endif + EXTENDED_SOURCES = \ cxa_atexit.c \ cxa_finalize.c \ drand48.c \ - ecvtbuf.c \ - efgcvt.c \ + ecvtbuf.c \ + efgcvt.c \ erand48.c \ jrand48.c \ lcong48.c \ @@ -115,10 +143,10 @@ ELIX_2_SOURCES = \ wctob.c ELIX_2_OBJS = \ - $(lpfx)malignr.$(oext) \ - $(lpfx)malloptr.$(oext) \ - $(lpfx)pvallocr.$(oext) \ - $(lpfx)vallocr.$(oext) + $(lpfx)$(MALIGNR).$(oext) \ + $(lpfx)$(MALLOPTR).$(oext) \ + $(lpfx)$(PVALLOCR).$(oext) \ + $(lpfx)$(VALLOCR).$(oext) ELIX_3_SOURCES = \ putenv.c \ @@ -148,10 +176,10 @@ endif endif # Because of how libtool moves objects around, mallocr must be built last. -LIBADD_OBJS = $(lpfx)freer.$(oext) $(lpfx)reallocr.$(oext) \ - $(lpfx)callocr.$(oext) $(lpfx)cfreer.$(oext) \ - $(lpfx)mallinfor.$(oext) $(lpfx)mallstatsr.$(oext) \ - $(lpfx)msizer.$(oext) $(lpfx)mallocr.$(oext) +LIBADD_OBJS = $(lpfx)$(FREER).$(oext) $(lpfx)$(REALLOCR).$(oext) \ + $(lpfx)$(CALLOCR).$(oext) $(lpfx)$(CFREER).$(oext) \ + $(lpfx)$(MALLINFOR).$(oext) $(lpfx)$(MALLSTATSR).$(oext) \ + $(lpfx)$(MSIZER).$(oext) $(lpfx)$(MALLOCR).$(oext) libstdlib_la_LDFLAGS = -Xcompiler -nostdlib @@ -176,41 +204,41 @@ include $(srcdir)/../../Makefile.shared MALLOC_COMPILE = $(LIB_COMPILE) -DINTERNAL_NEWLIB -$(lpfx)mallocr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MALLOC -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MALLOCR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MALLOC -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)freer.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_FREE -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(FREER).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_FREE -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)reallocr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_REALLOC -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(REALLOCR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_REALLOC -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)callocr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_CALLOC -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(CALLOCR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_CALLOC -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)cfreer.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_CFREE -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(CFREER).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_CFREE -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)malignr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MEMALIGN -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MALIGNR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MEMALIGN -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)vallocr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_VALLOC -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(VALLOCR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_VALLOC -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)pvallocr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_PVALLOC -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(PVALLOCR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_PVALLOC -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)mallinfor.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MALLINFO -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MALLINFOR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MALLINFO -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)mallstatsr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MALLOC_STATS -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MALLSTATSR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MALLOC_STATS -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)msizer.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MALLOC_USABLE_SIZE -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MSIZER).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MALLOC_USABLE_SIZE -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)malloptr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MALLOPT -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MALLOPTR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MALLOPT -c $(srcdir)/$(MALLOCR).c -o $@ CHEWOUT_FILES= \ _Exit.def \ @@ -234,7 +262,7 @@ CHEWOUT_FILES= \ llabs.def \ lldiv.def \ malloc.def \ - mallocr.def \ + $(MALLOCR).def \ mblen.def \ mbsnrtowcs.def \ mbstowcs.def \ diff --git a/newlib/libc/stdlib/Makefile.in b/newlib/libc/stdlib/Makefile.in index 33e5f260d..319079dd5 100644 --- a/newlib/libc/stdlib/Makefile.in +++ b/newlib/libc/stdlib/Makefile.in @@ -361,12 +361,36 @@ GENERAL_SOURCES = __adjust.c __atexit.c __call_atexit.c __exp10.c \ reallocf.c sb_charsets.c strtod.c strtol.c strtoul.c wcstod.c \ wcstol.c wcstoul.c wcstombs.c wcstombs_r.c wctomb.c wctomb_r.c \ $(am__append_1) +@NEWLIB_NANO_MALLOC_FALSE@MALIGNR = malignr +@NEWLIB_NANO_MALLOC_TRUE@MALIGNR = nano-malignr +@NEWLIB_NANO_MALLOC_FALSE@MALLOPTR = malloptr +@NEWLIB_NANO_MALLOC_TRUE@MALLOPTR = nano-malloptr +@NEWLIB_NANO_MALLOC_FALSE@PVALLOCR = pvallocr +@NEWLIB_NANO_MALLOC_TRUE@PVALLOCR = nano-pvallocr +@NEWLIB_NANO_MALLOC_FALSE@VALLOCR = vallocr +@NEWLIB_NANO_MALLOC_TRUE@VALLOCR = nano-vallocr +@NEWLIB_NANO_MALLOC_FALSE@FREER = freer +@NEWLIB_NANO_MALLOC_TRUE@FREER = nano-freer +@NEWLIB_NANO_MALLOC_FALSE@REALLOCR = reallocr +@NEWLIB_NANO_MALLOC_TRUE@REALLOCR = nano-reallocr +@NEWLIB_NANO_MALLOC_FALSE@CALLOCR = callocr +@NEWLIB_NANO_MALLOC_TRUE@CALLOCR = nano-callocr +@NEWLIB_NANO_MALLOC_FALSE@CFREER = cfreer +@NEWLIB_NANO_MALLOC_TRUE@CFREER = nano-cfreer +@NEWLIB_NANO_MALLOC_FALSE@MALLINFOR = mallinfor +@NEWLIB_NANO_MALLOC_TRUE@MALLINFOR = nano-mallinfor +@NEWLIB_NANO_MALLOC_FALSE@MALLSTATSR = mallstatsr +@NEWLIB_NANO_MALLOC_TRUE@MALLSTATSR = nano-mallstatsr +@NEWLIB_NANO_MALLOC_FALSE@MSIZER = msizer +@NEWLIB_NANO_MALLOC_TRUE@MSIZER = nano-msizer +@NEWLIB_NANO_MALLOC_FALSE@MALLOCR = mallocr +@NEWLIB_NANO_MALLOC_TRUE@MALLOCR = nano-mallocr EXTENDED_SOURCES = \ cxa_atexit.c \ cxa_finalize.c \ drand48.c \ - ecvtbuf.c \ - efgcvt.c \ + ecvtbuf.c \ + efgcvt.c \ erand48.c \ jrand48.c \ lcong48.c \ @@ -410,10 +434,10 @@ ELIX_2_SOURCES = \ wctob.c ELIX_2_OBJS = \ - $(lpfx)malignr.$(oext) \ - $(lpfx)malloptr.$(oext) \ - $(lpfx)pvallocr.$(oext) \ - $(lpfx)vallocr.$(oext) + $(lpfx)$(MALIGNR).$(oext) \ + $(lpfx)$(MALLOPTR).$(oext) \ + $(lpfx)$(PVALLOCR).$(oext) \ + $(lpfx)$(VALLOCR).$(oext) ELIX_3_SOURCES = \ putenv.c \ @@ -434,10 +458,10 @@ ELIX_4_SOURCES = \ @ELIX_LEVEL_1_TRUE@ELIX_OBJS = # Because of how libtool moves objects around, mallocr must be built last. -LIBADD_OBJS = $(lpfx)freer.$(oext) $(lpfx)reallocr.$(oext) \ - $(lpfx)callocr.$(oext) $(lpfx)cfreer.$(oext) \ - $(lpfx)mallinfor.$(oext) $(lpfx)mallstatsr.$(oext) \ - $(lpfx)msizer.$(oext) $(lpfx)mallocr.$(oext) +LIBADD_OBJS = $(lpfx)$(FREER).$(oext) $(lpfx)$(REALLOCR).$(oext) \ + $(lpfx)$(CALLOCR).$(oext) $(lpfx)$(CFREER).$(oext) \ + $(lpfx)$(MALLINFOR).$(oext) $(lpfx)$(MALLSTATSR).$(oext) \ + $(lpfx)$(MSIZER).$(oext) $(lpfx)$(MALLOCR).$(oext) libstdlib_la_LDFLAGS = -Xcompiler -nostdlib @USE_LIBTOOL_TRUE@noinst_LTLIBRARIES = libstdlib.la @@ -476,7 +500,7 @@ CHEWOUT_FILES = \ llabs.def \ lldiv.def \ malloc.def \ - mallocr.def \ + $(MALLOCR).def \ mblen.def \ mbsnrtowcs.def \ mbstowcs.def \ @@ -1388,41 +1412,41 @@ objectlist.awk.in: $(noinst_LTLIBRARIES) echo $$i `pwd`/$$i >> objectlist.awk.in ; \ done -$(lpfx)mallocr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MALLOC -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MALLOCR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MALLOC -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)freer.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_FREE -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(FREER).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_FREE -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)reallocr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_REALLOC -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(REALLOCR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_REALLOC -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)callocr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_CALLOC -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(CALLOCR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_CALLOC -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)cfreer.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_CFREE -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(CFREER).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_CFREE -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)malignr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MEMALIGN -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MALIGNR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MEMALIGN -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)vallocr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_VALLOC -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(VALLOCR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_VALLOC -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)pvallocr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_PVALLOC -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(PVALLOCR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_PVALLOC -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)mallinfor.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MALLINFO -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MALLINFOR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MALLINFO -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)mallstatsr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MALLOC_STATS -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MALLSTATSR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MALLOC_STATS -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)msizer.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MALLOC_USABLE_SIZE -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MSIZER).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MALLOC_USABLE_SIZE -c $(srcdir)/$(MALLOCR).c -o $@ -$(lpfx)malloptr.$(oext): mallocr.c - $(MALLOC_COMPILE) -DDEFINE_MALLOPT -c $(srcdir)/mallocr.c -o $@ +$(lpfx)$(MALLOPTR).$(oext): $(MALLOCR).c + $(MALLOC_COMPILE) -DDEFINE_MALLOPT -c $(srcdir)/$(MALLOCR).c -o $@ .c.def: $(CHEW) < $< > $*.def 2> $*.ref diff --git a/newlib/libc/stdlib/__atexit.c b/newlib/libc/stdlib/__atexit.c index 4687d0023..f04f00d8e 100644 --- a/newlib/libc/stdlib/__atexit.c +++ b/newlib/libc/stdlib/__atexit.c @@ -10,7 +10,17 @@ /* Make this a weak reference to avoid pulling in malloc. */ void * malloc(size_t) _ATTRIBUTE((__weak__)); -__LOCK_INIT_RECURSIVE(, __atexit_lock); + +#ifndef __SINGLE_THREAD__ +extern _LOCK_RECURSIVE_T __atexit_lock; +#endif + +#ifdef _REENT_GLOBAL_ATEXIT +static struct _atexit _global_atexit0 = _ATEXIT_INIT; +# define _GLOBAL_ATEXIT0 (&_global_atexit0) +#else +# define _GLOBAL_ATEXIT0 (&_GLOBAL_REENT->_atexit0) +#endif /* * Register a function to be performed at exit or on shared library unload. @@ -31,9 +41,9 @@ _DEFUN (__register_exitproc, __lock_acquire_recursive(__atexit_lock); #endif - p = _GLOBAL_REENT->_atexit; + p = _GLOBAL_ATEXIT; if (p == NULL) - _GLOBAL_REENT->_atexit = p = &_GLOBAL_REENT->_atexit0; + _GLOBAL_ATEXIT = p = _GLOBAL_ATEXIT0; if (p->_ind >= _ATEXIT_SIZE) { #ifndef _ATEXIT_DYNAMIC_ALLOC @@ -53,8 +63,8 @@ _DEFUN (__register_exitproc, return -1; } p->_ind = 0; - p->_next = _GLOBAL_REENT->_atexit; - _GLOBAL_REENT->_atexit = p; + p->_next = _GLOBAL_ATEXIT; + _GLOBAL_ATEXIT = p; #ifndef _REENT_SMALL p->_on_exit_args._fntypes = 0; p->_on_exit_args._is_cxa = 0; diff --git a/newlib/libc/stdlib/__call_atexit.c b/newlib/libc/stdlib/__call_atexit.c index 4c4506343..1e6e71044 100644 --- a/newlib/libc/stdlib/__call_atexit.c +++ b/newlib/libc/stdlib/__call_atexit.c @@ -11,8 +11,10 @@ /* Make this a weak reference to avoid pulling in free. */ void free(void *) _ATTRIBUTE((__weak__)); -#ifndef __SINGLE_THREAD__ -extern _LOCK_RECURSIVE_T __atexit_lock; +__LOCK_INIT_RECURSIVE(, __atexit_lock); + +#ifdef _REENT_GLOBAL_ATEXIT +struct _atexit *_global_atexit = _NULL; #endif #ifdef _WANT_REGISTER_FINI @@ -78,8 +80,8 @@ _DEFUN (__call_exitprocs, (code, d), restart: - p = _GLOBAL_REENT->_atexit; - lastp = &_GLOBAL_REENT->_atexit; + p = _GLOBAL_ATEXIT; + lastp = &_GLOBAL_ATEXIT; while (p) { #ifdef _REENT_SMALL diff --git a/newlib/libc/stdlib/ecvtbuf.c b/newlib/libc/stdlib/ecvtbuf.c index 2b9b9eb8a..feaa33fd0 100644 --- a/newlib/libc/stdlib/ecvtbuf.c +++ b/newlib/libc/stdlib/ecvtbuf.c @@ -233,6 +233,7 @@ _DEFUN (fcvtbuf, (invalue, ndigit, decpt, sign, fcvt_buf), int *sign _AND char *fcvt_buf) { + struct _reent *reent = _REENT; char *save; char *p; char *end; @@ -240,27 +241,27 @@ _DEFUN (fcvtbuf, (invalue, ndigit, decpt, sign, fcvt_buf), if (fcvt_buf == NULL) { - if (_REENT->_cvtlen <= ndigit + 35) + if (reent->_cvtlen <= ndigit + 35) { - if ((fcvt_buf = (char *) _realloc_r (_REENT, _REENT->_cvtbuf, + if ((fcvt_buf = (char *) _realloc_r (reent, reent->_cvtbuf, ndigit + 36)) == NULL) return NULL; - _REENT->_cvtlen = ndigit + 36; - _REENT->_cvtbuf = fcvt_buf; + reent->_cvtlen = ndigit + 36; + reent->_cvtbuf = fcvt_buf; } - fcvt_buf = _REENT->_cvtbuf ; + fcvt_buf = reent->_cvtbuf ; } save = fcvt_buf; if (invalue < 1.0 && invalue > -1.0) { - p = _dtoa_r (_REENT, invalue, 2, ndigit, decpt, sign, &end); + p = _dtoa_r (reent, invalue, 2, ndigit, decpt, sign, &end); } else { - p = _dtoa_r (_REENT, invalue, 3, ndigit, decpt, sign, &end); + p = _dtoa_r (reent, invalue, 3, ndigit, decpt, sign, &end); } /* Now copy */ @@ -289,6 +290,7 @@ _DEFUN (ecvtbuf, (invalue, ndigit, decpt, sign, fcvt_buf), int *sign _AND char *fcvt_buf) { + struct _reent *reent = _REENT; char *save; char *p; char *end; @@ -296,21 +298,21 @@ _DEFUN (ecvtbuf, (invalue, ndigit, decpt, sign, fcvt_buf), if (fcvt_buf == NULL) { - if (_REENT->_cvtlen <= ndigit) + if (reent->_cvtlen <= ndigit) { - if ((fcvt_buf = (char *) _realloc_r (_REENT, _REENT->_cvtbuf, + if ((fcvt_buf = (char *) _realloc_r (reent, reent->_cvtbuf, ndigit + 1)) == NULL) return NULL; - _REENT->_cvtlen = ndigit + 1; - _REENT->_cvtbuf = fcvt_buf; + reent->_cvtlen = ndigit + 1; + reent->_cvtbuf = fcvt_buf; } - fcvt_buf = _REENT->_cvtbuf ; + fcvt_buf = reent->_cvtbuf ; } save = fcvt_buf; - p = _dtoa_r (_REENT, invalue, 2, ndigit, decpt, sign, &end); + p = _dtoa_r (reent, invalue, 2, ndigit, decpt, sign, &end); /* Now copy */ diff --git a/newlib/libc/stdlib/mblen.c b/newlib/libc/stdlib/mblen.c index ace23889b..4d9ac38bd 100644 --- a/newlib/libc/stdlib/mblen.c +++ b/newlib/libc/stdlib/mblen.c @@ -55,11 +55,12 @@ _DEFUN (mblen, (s, n), { #ifdef _MB_CAPABLE int retval = 0; + struct _reent *reent = _REENT; mbstate_t *state; - _REENT_CHECK_MISC(_REENT); - state = &(_REENT_MBLEN_STATE(_REENT)); - retval = __mbtowc (_REENT, NULL, s, n, __locale_charset (), state); + _REENT_CHECK_MISC(reent); + state = &(_REENT_MBLEN_STATE(reent)); + retval = __mbtowc (reent, NULL, s, n, __locale_charset (), state); if (retval < 0) { state->__count = 0; diff --git a/newlib/libc/stdlib/mbrlen.c b/newlib/libc/stdlib/mbrlen.c index ac9aa324f..4319875a1 100644 --- a/newlib/libc/stdlib/mbrlen.c +++ b/newlib/libc/stdlib/mbrlen.c @@ -11,8 +11,10 @@ mbrlen(const char *s, size_t n, mbstate_t *ps) #ifdef _MB_CAPABLE if (ps == NULL) { - _REENT_CHECK_MISC(_REENT); - ps = &(_REENT_MBRLEN_STATE(_REENT)); + struct _reent *reent = _REENT; + + _REENT_CHECK_MISC(reent); + ps = &(_REENT_MBRLEN_STATE(reent)); } #endif diff --git a/newlib/libc/stdlib/mbrtowc.c b/newlib/libc/stdlib/mbrtowc.c index e191e1158..0a8c23a9d 100644 --- a/newlib/libc/stdlib/mbrtowc.c +++ b/newlib/libc/stdlib/mbrtowc.c @@ -52,24 +52,25 @@ _DEFUN (mbrtowc, (pwc, s, n, ps), return _mbrtowc_r (_REENT, pwc, s, n, ps); #else int retval = 0; + struct _reent *reent = _REENT; #ifdef _MB_CAPABLE if (ps == NULL) { - _REENT_CHECK_MISC(_REENT); - ps = &(_REENT_MBRTOWC_STATE(_REENT)); + _REENT_CHECK_MISC(reent); + ps = &(_REENT_MBRTOWC_STATE(reent)); } #endif if (s == NULL) - retval = __mbtowc (_REENT, NULL, "", 1, __locale_charset (), ps); + retval = __mbtowc (reent, NULL, "", 1, __locale_charset (), ps); else - retval = __mbtowc (_REENT, pwc, s, n, __locale_charset (), ps); + retval = __mbtowc (reent, pwc, s, n, __locale_charset (), ps); if (retval == -1) { ps->__count = 0; - _REENT->_errno = EILSEQ; + reent->_errno = EILSEQ; return (size_t)(-1); } else diff --git a/newlib/libc/stdlib/mbtowc.c b/newlib/libc/stdlib/mbtowc.c index 83b6a0eda..8da309e2d 100644 --- a/newlib/libc/stdlib/mbtowc.c +++ b/newlib/libc/stdlib/mbtowc.c @@ -64,12 +64,13 @@ _DEFUN (mbtowc, (pwc, s, n), { #ifdef _MB_CAPABLE int retval = 0; + struct _reent *reent = _REENT; mbstate_t *ps; - _REENT_CHECK_MISC(_REENT); - ps = &(_REENT_MBTOWC_STATE(_REENT)); + _REENT_CHECK_MISC(reent); + ps = &(_REENT_MBTOWC_STATE(reent)); - retval = __mbtowc (_REENT, pwc, s, n, __locale_charset (), ps); + retval = __mbtowc (reent, pwc, s, n, __locale_charset (), ps); if (retval < 0) { diff --git a/newlib/libc/stdlib/nano-mallocr.c b/newlib/libc/stdlib/nano-mallocr.c new file mode 100644 index 000000000..e0a919590 --- /dev/null +++ b/newlib/libc/stdlib/nano-mallocr.c @@ -0,0 +1,581 @@ +/* + * Copyright (c) 2012, 2013 ARM Ltd + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the company may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* Implementation of <<malloc>> <<free>> <<calloc>> <<realloc>>, optional + * as to be reenterable. + * + * Interface documentation refer to malloc.c. + */ + +#include <stdio.h> +#include <string.h> +#include <errno.h> + +#if DEBUG +#include <assert.h> +#else +#define assert(x) ((void)0) +#endif + +#ifndef MAX +#define MAX(a,b) ((a) >= (b) ? (a) : (b)) +#endif + +#ifdef INTERNAL_NEWLIB + +#include <sys/config.h> +#include <reent.h> + +#define RARG struct _reent *reent_ptr, +#define RONEARG struct _reent *reent_ptr +#define RCALL reent_ptr, + +/* Disable MALLOC_LOCK so far. So it won't be thread safe */ +#define MALLOC_LOCK /*__malloc_lock(reent_ptr) */ +#define MALLOC_UNLOCK /*__malloc_unlock(reent_ptr) */ + +#define RERRNO reent_ptr->_errno + +#define nano_malloc _malloc_r +#define nano_free _free_r +#define nano_realloc _realloc_r +#define nano_memalign _memalign_r +#define nano_valloc _valloc_r +#define nano_pvalloc _pvalloc_r +#define nano_calloc _calloc_r +#define nano_cfree _cfree_r +#define nano_malloc_usable_size _malloc_usable_size_r +#define nano_malloc_stats _malloc_stats_r +#define nano_mallinfo _mallinfo_r +#define nano_allopt _mallopt_r + +#else /* ! INTERNAL_NEWLIB */ + +#define RARG +#define RONEARG +#define RCALL +#define MALLOC_LOCK +#define MALLOC_UNLOCK +#define RERRNO errno + +#define nano_malloc malloc +#define nano_free free +#define nano_realloc realloc +#define nano_memalign memalign +#define nano_valloc valloc +#define nano_pvalloc pvalloc +#define nano_calloc calloc +#define nano_cfree cfree +#define nano_malloc_usable_size malloc_usable_size +#define nano_malloc_stats malloc_stats +#define nano_mallinfo mallinfo +#define nano_allopt mallopt +#endif /* ! INTERNAL_NEWLIB */ + +/* Define free_list as internal name to avoid conflict with user names */ +#define free_list __malloc_free_list + +#define ALIGN_TO(size, align) \ + (((size) + (align) -1) & ~((align) -1)) + +/* Alignment of allocated block */ +#define MALLOC_ALIGN (8U) +#define CHUNK_ALIGN (sizeof(void*)) +#define MALLOC_PADDING ((MAX(MALLOC_ALIGN, CHUNK_ALIGN)) - CHUNK_ALIGN) + +/* as well as the minimal allocation size + * to hold a free pointer */ +#define MALLOC_MINSIZE (sizeof(void *)) +#define MALLOC_PAGE_ALIGN (0x1000) +#define MAX_ALLOC_SIZE (0x80000000U) + +typedef size_t malloc_size_t; + +typedef struct malloc_chunk +{ + /* ------------------ + * chunk->| size (4 bytes) | + * ------------------ + * | Padding for | + * | alignment | + * | holding neg | + * | offset to size | + * ------------------ + * mem_ptr->| point to next | + * | free when freed| + * | or data load | + * | when allocated | + * ------------------ + */ + /* size of the allocated payload area, including size before + CHUNK_OFFSET */ + int size; + + /* since here, the memory is either the next free block, or data load */ + struct malloc_chunk * next; +}chunk; + +#define CHUNK_OFFSET ((malloc_size_t)(&(((struct malloc_chunk *)0)->next))) + +/* size of smallest possible chunk. A memory piece smaller than this size + * won't be able to create a chunk */ +#define MALLOC_MINCHUNK (CHUNK_OFFSET + MALLOC_PADDING + MALLOC_MINSIZE) + +static chunk * get_chunk_from_ptr(void * ptr) +{ + chunk * c = (chunk *)((char *)ptr - CHUNK_OFFSET); + /* Skip the padding area */ + if (c->size < 0) c = (chunk *)((char *)c + c->size); + return c; +} + +#ifdef DEFINE_MALLOC +chunk * free_list = NULL; + +/** Function sbrk_aligned + * Algorithm: + * Use sbrk() to obtain more memory and ensure it is CHUNK_ALIGN aligned + * Optimise for the case that it is already aligned - only ask for extra + * padding after we know we need it + */ +static void* sbrk_aligned(RARG malloc_size_t s) +{ + char *p, *align_p; + + p = _sbrk_r(RCALL s); + + /* sbrk returns -1 if fail to allocate */ + if (p == (void *)-1) + return p; + + align_p = (char*)ALIGN_TO((unsigned long)p, CHUNK_ALIGN); + if (align_p != p) + { + /* p is not aligned, ask for a few more bytes so that we have s + * bytes reserved from align_p. */ + p = _sbrk_r(RCALL align_p - p); + if (p == (void *)-1) + return p; + } + return align_p; +} + +/** Function nano_malloc + * Algorithm: + * Walk through the free list to find the first match. If fails to find + * one, call sbrk to allocate a new chunk. + */ +void * nano_malloc(RARG malloc_size_t s) +{ + chunk *p, *r; + char * ptr, * align_ptr; + int offset; + + malloc_size_t alloc_size; + + alloc_size = ALIGN_TO(s, CHUNK_ALIGN); /* size of aligned data load */ + alloc_size += MALLOC_PADDING; /* padding */ + alloc_size += CHUNK_OFFSET; /* size of chunk head */ + alloc_size = MAX(alloc_size, MALLOC_MINCHUNK); + + if (alloc_size >= MAX_ALLOC_SIZE || alloc_size < s) + { + RERRNO = ENOMEM; + return NULL; + } + + MALLOC_LOCK; + + p = free_list; + r = p; + + while (r) + { + int rem = r->size - alloc_size; + if (rem >= 0) + { + if (rem >= MALLOC_MINCHUNK) + { + /* Find a chunk that much larger than required size, break + * it into two chunks and return the second one */ + r->size = rem; + r = (chunk *)((char *)r + rem); + r->size = alloc_size; + } + /* Find a chunk that is exactly the size or slightly bigger + * than requested size, just return this chunk */ + else if (p == r) + { + /* Now it implies p==r==free_list. Move the free_list + * to next chunk */ + free_list = r->next; + } + else + { + /* Normal case. Remove it from free_list */ + p->next = r->next; + } + break; + } + p=r; + r=r->next; + } + + /* Failed to find a appropriate chunk. Ask for more memory */ + if (r == NULL) + { + r = sbrk_aligned(RCALL alloc_size); + + /* sbrk returns -1 if fail to allocate */ + if (r == (void *)-1) + { + RERRNO = ENOMEM; + MALLOC_UNLOCK; + return NULL; + } + r->size = alloc_size; + } + MALLOC_UNLOCK; + + ptr = (char *)r + CHUNK_OFFSET; + + align_ptr = (char *)ALIGN_TO((unsigned long)ptr, MALLOC_ALIGN); + offset = align_ptr - ptr; + + if (offset) + { + *(int *)((char *)r + offset) = -offset; + } + + assert(align_ptr + size <= (char *)r + alloc_size); + return align_ptr; +} +#endif /* DEFINE_MALLOC */ + +#ifdef DEFINE_FREE +#define MALLOC_CHECK_DOUBLE_FREE + +extern chunk * free_list; +/** Function nano_free + * Implementation of libc free. + * Algorithm: + * Maintain a global free chunk single link list, headed by global + * variable free_list. + * When free, insert the to-be-freed chunk into free list. The place to + * insert should make sure all chunks are sorted by address from low to + * high. Then merge with neighbor chunks if adjacent. + */ +void nano_free (RARG void * free_p) +{ + chunk * p_to_free; + chunk * p, * q; + + if (free_p == NULL) return; + + p_to_free = get_chunk_from_ptr(free_p); + + MALLOC_LOCK; + if (free_list == NULL) + { + /* Set first free list element */ + p_to_free->next = free_list; + free_list = p_to_free; + MALLOC_UNLOCK; + return; + } + + if (p_to_free < free_list) + { + if ((char *)p_to_free + p_to_free->size == (char *)free_list) + { + /* Chunk to free is just before the first element of + * free list */ + p_to_free->size += free_list->size; + p_to_free->next = free_list->next; + } + else + { + /* Insert before current free_list */ + p_to_free->next = free_list; + } + free_list = p_to_free; + MALLOC_UNLOCK; + return; + } + + q = free_list; + /* Walk through the free list to find the place for insert. */ + do + { + p = q; + q = q->next; + } while (q && q <= p_to_free); + + /* Now p <= p_to_free and either q == NULL or q > p_to_free + * Try to merge with chunks immediately before/after it. */ + + if ((char *)p + p->size == (char *)p_to_free) + { + /* Chunk to be freed is adjacent + * to a free chunk before it */ + p->size += p_to_free->size; + /* If the merged chunk is also adjacent + * to the chunk after it, merge again */ + if ((char *)p + p->size == (char *) q) + { + p->size += q->size; + p->next = q->next; + } + } +#ifdef MALLOC_CHECK_DOUBLE_FREE + else if ((char *)p + p->size > (char *)p_to_free) + { + /* Report double free fault */ + RERRNO = ENOMEM; + MALLOC_UNLOCK; + return; + } +#endif + else if ((char *)p_to_free + p_to_free->size == (char *) q) + { + /* Chunk to be freed is adjacent + * to a free chunk after it */ + p_to_free->size += q->size; + p_to_free->next = q->next; + p->next = p_to_free; + } + else + { + /* Not adjacent to any chunk. Just insert it. Resulting + * a fragment. */ + p_to_free->next = q; + p->next = p_to_free; + } + MALLOC_UNLOCK; +} +#endif /* DEFINE_FREE */ + +#ifdef DEFINE_CFREE +void nano_free (RARG void * free_p); + +void nano_cfree(RARG void * ptr) +{ + nano_free(RCALL ptr); +} +#endif /* DEFINE_CFREE */ + +#ifdef DEFINE_CALLOC +void * nano_malloc(RARG malloc_size_t s); + +/* Function nano_calloc + * Implement calloc simply by calling malloc and set zero */ +void * nano_calloc(RARG malloc_size_t n, malloc_size_t elem) +{ + void * mem = nano_malloc(RCALL n * elem); + if (mem != NULL) memset(mem, 0, n * elem); + return mem; +} +#endif /* DEFINE_CALLOC */ + +#ifdef DEFINE_REALLOC +void * nano_malloc(RARG malloc_size_t s); +void nano_free (RARG void * free_p); +malloc_size_t nano_malloc_usable_size(RARG void * ptr); + +/* Function nano_realloc + * Implement realloc by malloc + memcpy */ +void * nano_realloc(RARG void * ptr, malloc_size_t size) +{ + void * mem; + chunk * p_to_realloc; + + if (ptr == NULL) return nano_malloc(RCALL size); + + if (size == 0) + { + nano_free(RCALL ptr); + return NULL; + } + + /* TODO: There is chance to shrink the chunk if newly requested + * size is much small */ + if (nano_malloc_usable_size(RCALL ptr) >= size) + return ptr; + + mem = nano_malloc(RCALL size); + if (mem != NULL) + { + memcpy(mem, ptr, size); + nano_free(RCALL ptr); + } + return mem; +} +#endif /* DEFINE_REALLOC */ + +#ifdef DEFINE_MALLINFO +struct mallinfo +{ + int arena; /* total space allocated from system */ + int ordblks; /* number of non-inuse chunks */ + int smblks; /* unused -- always zero */ + int hblks; /* number of mmapped regions */ + int hblkhd; /* total space in mmapped regions */ + int usmblks; /* unused -- always zero */ + int fsmblks; /* unused -- always zero */ + int uordblks; /* total allocated space */ + int fordblks; /* total non-inuse space */ + int keepcost; /* top-most, releasable (via malloc_trim) space */ +}; + +static struct mallinfo current_mallinfo={0,0,0,0,0,0,0,0,0,0}; + +struct mallinfo nano_mallinfo(RONEARG) +{ + return current_mallinfo; +} + +#endif /* DEFINE_MALLINFO */ + +#ifdef DEFINE_MALLOC_STATS +void nano_malloc_stats(RONEARG) +{ +} +#endif /* DEFINE_MALLOC_STATS */ + +#ifdef DEFINE_MALLOC_USABLE_SIZE +malloc_size_t nano_malloc_usable_size(RARG void * ptr) +{ + chunk * c = (chunk *)((char *)ptr - CHUNK_OFFSET); + int size_or_offset = c->size; + + if (size_or_offset < 0) + { + /* Padding is used. Excluding the padding size */ + c = (chunk *)((char *)c + c->size); + return c->size - CHUNK_OFFSET + size_or_offset; + } + return c->size - CHUNK_OFFSET; +} +#endif /* DEFINE_MALLOC_USABLE_SIZE */ + +#ifdef DEFINE_MEMALIGN +void * nano_malloc(RARG malloc_size_t s); + +/* Function nano_memalign + * Allocate memory block aligned at specific boundary. + * align: required alignment. Must be power of 2. Return NULL + * if not power of 2. Undefined behavior is bigger than + * pointer value range. + * s: required size. + * Return: allocated memory pointer aligned to align + * Algorithm: Malloc a big enough block, padding pointer to aligned + * address, then truncate and free the tail if too big. + * Record the offset of align pointer and original pointer + * in the padding area. + */ +void * nano_memalign(RARG size_t align, size_t s) +{ + chunk * chunk_p; + malloc_size_t size_allocated, offset, ma_size, size_with_padding; + char * allocated, * aligned_p; + + /* Return NULL if align isn't power of 2 */ + if ((align & (align-1)) != 0) return NULL; + + align = MAX(align, MALLOC_ALIGN); + ma_size = ALIGN_TO(MAX(s, MALLOC_MINSIZE), CHUNK_ALIGN); + size_with_padding = ma_size + align - MALLOC_ALIGN; + + allocated = nano_malloc(RCALL size_with_padding); + if (allocated == NULL) return NULL; + + chunk_p = get_chunk_from_ptr(allocated); + aligned_p = (char *)ALIGN_TO( + (unsigned long)((char *)chunk_p + CHUNK_OFFSET), + (unsigned long)align); + offset = aligned_p - ((char *)chunk_p + CHUNK_OFFSET); + + if (offset) + { + if (offset >= MALLOC_MINCHUNK) + { + /* Padding is too large, free it */ + chunk * front_chunk = chunk_p; + chunk_p = (chunk *)((char *)chunk_p + offset); + chunk_p->size = front_chunk->size - offset; + front_chunk->size = offset; + nano_free(RCALL (char *)front_chunk + CHUNK_OFFSET); + } + else + { + /* Padding is used. Need to set a jump offset for aligned pointer + * to get back to chunk head */ + assert(offset >= sizeof(int)); + *(int *)((char *)chunk_p + offset) = -offset; + } + } + + size_allocated = chunk_p->size; + if ((char *)chunk_p + size_allocated > + (aligned_p + ma_size + MALLOC_MINCHUNK)) + { + /* allocated much more than what's required for padding, free + * tail part */ + chunk * tail_chunk = (chunk *)(aligned_p + ma_size); + chunk_p->size = aligned_p + ma_size - (char *)chunk_p; + tail_chunk->size = size_allocated - chunk_p->size; + nano_free(RCALL (char *)tail_chunk + CHUNK_OFFSET); + } + return aligned_p; +} +#endif /* DEFINE_MEMALIGN */ + +#ifdef DEFINE_MALLOPT +int nano_mallopt(RARG int parameter_number, int parameter_value) +{ + return 0; +} +#endif /* DEFINE_MALLOPT */ + +#ifdef DEFINE_VALLOC +void * nano_memalign(RARG size_t align, size_t s); + +void * nano_valloc(RARG size_t s) +{ + return nano_memalign(RCALL MALLOC_PAGE_ALIGN, s); +} +#endif /* DEFINE_VALLOC */ + +#ifdef DEFINE_PVALLOC +void * nano_valloc(RARG size_t s); + +void * nano_pvalloc(RARG size_t s) +{ + return nano_valloc(RCALL ALIGN_TO(s, MALLOC_PAGE_ALIGN)); +} +#endif /* DEFINE_PVALLOC */ diff --git a/newlib/libc/stdlib/rand.c b/newlib/libc/stdlib/rand.c index 131e5cf09..42acde4aa 100644 --- a/newlib/libc/stdlib/rand.c +++ b/newlib/libc/stdlib/rand.c @@ -72,20 +72,24 @@ on two different systems. void _DEFUN (srand, (seed), unsigned int seed) { - _REENT_CHECK_RAND48(_REENT); - _REENT_RAND_NEXT(_REENT) = seed; + struct _reent *reent = _REENT; + + _REENT_CHECK_RAND48(reent); + _REENT_RAND_NEXT(reent) = seed; } int _DEFUN_VOID (rand) { + struct _reent *reent = _REENT; + /* This multiplier was obtained from Knuth, D.E., "The Art of Computer Programming," Vol 2, Seminumerical Algorithms, Third Edition, Addison-Wesley, 1998, p. 106 (line 26) & p. 108 */ - _REENT_CHECK_RAND48(_REENT); - _REENT_RAND_NEXT(_REENT) = - _REENT_RAND_NEXT(_REENT) * __extension__ 6364136223846793005LL + 1; - return (int)((_REENT_RAND_NEXT(_REENT) >> 32) & RAND_MAX); + _REENT_CHECK_RAND48(reent); + _REENT_RAND_NEXT(reent) = + _REENT_RAND_NEXT(reent) * __extension__ 6364136223846793005LL + 1; + return (int)((_REENT_RAND_NEXT(reent) >> 32) & RAND_MAX); } #endif /* _REENT_ONLY */ diff --git a/newlib/libc/stdlib/strtod.c b/newlib/libc/stdlib/strtod.c index fe6aac206..159c9695b 100644 --- a/newlib/libc/stdlib/strtod.c +++ b/newlib/libc/stdlib/strtod.c @@ -128,11 +128,17 @@ THIS SOFTWARE. #ifndef NO_IEEE_Scale #define Avoid_Underflow #undef tinytens -/* The factor of 2^53 in tinytens[4] helps us avoid setting the underflow */ +/* The factor of 2^106 in tinytens[4] helps us avoid setting the underflow */ /* flag unnecessarily. It leads to a song and dance at the end of strtod. */ -static _CONST double tinytens[] = { 1e-16, 1e-32, 1e-64, 1e-128, - 9007199254740992.e-256 - }; +static _CONST double tinytens[] = { 1e-16, 1e-32, +#ifdef _DOUBLE_IS_32BITS + 0.0, 0.0, 0.0 +#else + 1e-64, 1e-128, + 9007199254740992. * 9007199254740992.e-256 +#endif + }; + #endif #endif @@ -144,6 +150,28 @@ static _CONST double tinytens[] = { 1e-16, 1e-32, 1e-64, 1e-128, #define Rounding Flt_Rounds #endif +#ifdef Avoid_Underflow /*{*/ + static double +_DEFUN (sulp, (x, scale), + U x _AND + int scale) +{ + U u; + double rv; + int i; + + rv = ulp(dval(x)); + if (!scale || (i = 2*P + 1 - ((dword0(x) & Exp_mask) >> Exp_shift)) <= 0) + return rv; /* Is there an example where i <= 0 ? */ + dword0(u) = Exp_1 + (i << Exp_shift); +#ifndef _DOUBLE_IS_32BITS + dword1(u) = 0; +#endif + return rv * u.d; + } +#endif /*}*/ + + #ifndef NO_HEX_FP static void @@ -221,7 +249,10 @@ _DEFUN (_strtod_r, (ptr, s00, se), U aadj1, rv, rv0; Long L; __ULong y, z; - _Bigint *bb, *bb1, *bd, *bd0, *bs, *delta; + _Bigint *bb = NULL, *bb1, *bd = NULL, *bd0, *bs = NULL, *delta = NULL; +#ifdef Avoid_Underflow + __ULong Lsb, Lsb1; +#endif #ifdef SET_INEXACT int inexact, oldinexact; #endif @@ -279,6 +310,8 @@ _DEFUN (_strtod_r, (ptr, s00, se), switch((i = gethex(ptr, &s, &fpi1, &exp, &bb, sign)) & STRTOG_Retmask) { case STRTOG_NoNumber: s = s00; + sign = 0; + /* FALLTHROUGH */ case STRTOG_Zero: break; default: @@ -299,14 +332,11 @@ _DEFUN (_strtod_r, (ptr, s00, se), } s0 = s; y = z = 0; - for(nd = nf = 0; (c = *s) >= '0' && c <= '9'; nd++, s++) { - if (nd < DBL_DIG + 1) { - if (nd < 9) - y = 10*y + c - '0'; - else - z = 10*z + c - '0'; - } - } + for(nd = nf = 0; (c = *s) >= '0' && c <= '9'; nd++, s++) + if (nd < 9) + y = 10*y + c - '0'; + else + z = 10*z + c - '0'; nd0 = nd; if (strncmp (s, _localeconv_r (ptr)->decimal_point, strlen (_localeconv_r (ptr)->decimal_point)) == 0) @@ -329,20 +359,15 @@ _DEFUN (_strtod_r, (ptr, s00, se), nz++; if (c -= '0') { nf += nz; - for(i = 1; i < nz; i++) { - if (nd++ <= DBL_DIG + 1) { - if (nd < 10) - y *= 10; - else - z *= 10; - } - } - if (nd++ <= DBL_DIG + 1) { - if (nd < 10) - y = 10*y + c; - else - z = 10*z + c; - } + for(i = 1; i < nz; i++) + if (nd++ < 9) + y *= 10; + else if (nd <= DBL_DIG + 1) + z *= 10; + if (nd++ < 9) + y = 10*y + c; + else if (nd <= DBL_DIG + 1) + z = 10*z + c; nz = 0; } } @@ -691,12 +716,20 @@ _DEFUN (_strtod_r, (ptr, s00, se), /* Put digits into bd: true value = bd * 10^e */ bd0 = s2b(ptr, s0, nd0, nd, y); + if (bd0 == NULL) + goto ovfl; for(;;) { bd = Balloc(ptr,bd0->_k); + if (bd == NULL) + goto ovfl; Bcopy(bd, bd0); bb = d2b(ptr,dval(rv), &bbe, &bbbits); /* rv = bb * 2^bbe */ + if (bb == NULL) + goto ovfl; bs = i2b(ptr,1); + if (bs == NULL) + goto ovfl; if (e >= 0) { bb2 = bb5 = 0; @@ -716,12 +749,19 @@ _DEFUN (_strtod_r, (ptr, s00, se), bs2++; #endif #ifdef Avoid_Underflow + Lsb = LSB; + Lsb1 = 0; j = bbe - scale; i = j + bbbits - 1; /* logb(rv) */ - if (i < Emin) /* denormal */ - j += P - Emin; - else - j = P + 1 - bbbits; + j = P + 1 - bbbits; + if (i < Emin) { /* denormal */ + i = Emin - i; + j -= i; + if (i < 32) + Lsb <<= i; + else + Lsb1 = Lsb << (i-32); + } #else /*Avoid_Underflow*/ #ifdef Sudden_Underflow #ifdef IBM @@ -753,19 +793,37 @@ _DEFUN (_strtod_r, (ptr, s00, se), } if (bb5 > 0) { bs = pow5mult(ptr, bs, bb5); + if (bs == NULL) + goto ovfl; bb1 = mult(ptr, bs, bb); + if (bb1 == NULL) + goto ovfl; Bfree(ptr, bb); bb = bb1; } - if (bb2 > 0) + if (bb2 > 0) { bb = lshift(ptr, bb, bb2); - if (bd5 > 0) + if (bb == NULL) + goto ovfl; + } + if (bd5 > 0) { bd = pow5mult(ptr, bd, bd5); - if (bd2 > 0) + if (bd == NULL) + goto ovfl; + } + if (bd2 > 0) { bd = lshift(ptr, bd, bd2); - if (bs2 > 0) + if (bd == NULL) + goto ovfl; + } + if (bs2 > 0) { bs = lshift(ptr, bs, bs2); + if (bs == NULL) + goto ovfl; + } delta = diff(ptr, bb, bd); + if (delta == NULL) + goto ovfl; dsign = delta->_sign; delta->_sign = 0; i = cmp(delta, bs); @@ -789,7 +847,7 @@ _DEFUN (_strtod_r, (ptr, s00, se), else if (!dsign) { adj = -1.; if (!dword1(rv) - && !(dword0(rv) & Frac_mask)) { + && !(dword0(rv) & Frac_mask)) { y = dword0(rv) & Exp_mask; #ifdef Avoid_Underflow if (!scale || y > 2*P*Exp_msk1) @@ -852,7 +910,9 @@ _DEFUN (_strtod_r, (ptr, s00, se), #endif /*Sudden_Underflow*/ #endif /*Avoid_Underflow*/ adj *= ulp(dval(rv)); - if (dsign) + if (dsign) { + if (dword0(rv) == Big0 && dword1(rv) == Big1) + goto ovfl; dval(rv) += adj; else dval(rv) -= adj; @@ -902,6 +962,8 @@ _DEFUN (_strtod_r, (ptr, s00, se), #endif 0xffffffff)) { /*boundary case -- increment exponent*/ + if (dword0(rv) == Big0 && dword1(rv) == Big1) + goto ovfl; dword0(rv) = (dword0(rv) & Exp_mask) + Exp_msk1 #ifdef IBM @@ -960,14 +1022,31 @@ _DEFUN (_strtod_r, (ptr, s00, se), #endif } #ifndef ROUND_BIASED +#ifdef Avoid_Underflow + if (Lsb1) { + if (!(dword0(rv) & Lsb1)) + break; + } + else if (!(dword1(rv) & Lsb)) + break; +#else if (!(dword1(rv) & LSB)) break; #endif +#endif if (dsign) +#ifdef Avoid_Underflow + dval(rv) += sulp(rv, scale); +#else dval(rv) += ulp(dval(rv)); +#endif #ifndef ROUND_BIASED else { +#ifdef Avoid_Underflow + dval(rv) -= sulp(rv, scale); +#else dval(rv) -= ulp(dval(rv)); +#endif #ifndef Sudden_Underflow if (!dval(rv)) goto undfl; @@ -1044,7 +1123,7 @@ _DEFUN (_strtod_r, (ptr, s00, se), #ifdef Avoid_Underflow if (scale && y <= 2*P*Exp_msk1) { if (aadj <= 0x7fffffff) { - if ((z = aadj) <= 0) + if ((z = aadj) == 0) z = 1; aadj = z; dval(aadj1) = dsign ? aadj : -aadj; diff --git a/newlib/libc/stdlib/wcrtomb.c b/newlib/libc/stdlib/wcrtomb.c index 60e0d89c8..b634c23ce 100644 --- a/newlib/libc/stdlib/wcrtomb.c +++ b/newlib/libc/stdlib/wcrtomb.c @@ -50,25 +50,26 @@ _DEFUN (wcrtomb, (s, wc, ps), return _wcrtomb_r (_REENT, s, wc, ps); #else int retval = 0; + struct _reent *reent = _REENT; char buf[10]; #ifdef _MB_CAPABLE if (ps == NULL) { - _REENT_CHECK_MISC(_REENT); - ps = &(_REENT_WCRTOMB_STATE(_REENT)); + _REENT_CHECK_MISC(reent); + ps = &(_REENT_WCRTOMB_STATE(reent)); } #endif if (s == NULL) - retval = __wctomb (_REENT, buf, L'\0', __locale_charset (), ps); + retval = __wctomb (reent, buf, L'\0', __locale_charset (), ps); else - retval = __wctomb (_REENT, s, wc, __locale_charset (), ps); + retval = __wctomb (reent, s, wc, __locale_charset (), ps); if (retval == -1) { ps->__count = 0; - _REENT->_errno = EILSEQ; + reent->_errno = EILSEQ; return (size_t)(-1); } else diff --git a/newlib/libc/stdlib/wctob.c b/newlib/libc/stdlib/wctob.c index d97c01f24..eebaec84f 100644 --- a/newlib/libc/stdlib/wctob.c +++ b/newlib/libc/stdlib/wctob.c @@ -8,6 +8,7 @@ int wctob (wint_t wc) { + struct _reent *reent; mbstate_t mbs; unsigned char pmb[MB_LEN_MAX]; @@ -17,8 +18,9 @@ wctob (wint_t wc) /* Put mbs in initial state. */ memset (&mbs, '\0', sizeof (mbs)); - _REENT_CHECK_MISC(_REENT); + reent = _REENT; + _REENT_CHECK_MISC(reent); - return __wctomb (_REENT, (char *) pmb, wc, __locale_charset (), &mbs) == 1 + return __wctomb (reent, (char *) pmb, wc, __locale_charset (), &mbs) == 1 ? (int) pmb[0] : EOF; } diff --git a/newlib/libc/stdlib/wctomb.c b/newlib/libc/stdlib/wctomb.c index 9e82eaaba..8d4ceb8ad 100644 --- a/newlib/libc/stdlib/wctomb.c +++ b/newlib/libc/stdlib/wctomb.c @@ -57,10 +57,12 @@ _DEFUN (wctomb, (s, wchar), wchar_t wchar) { #ifdef _MB_CAPABLE - _REENT_CHECK_MISC(_REENT); + struct _reent *reent = _REENT; - return __wctomb (_REENT, s, wchar, __locale_charset (), - &(_REENT_WCTOMB_STATE(_REENT))); + _REENT_CHECK_MISC(reent); + + return __wctomb (reent, s, wchar, __locale_charset (), + &(_REENT_WCTOMB_STATE(reent))); #else /* not _MB_CAPABLE */ if (s == NULL) return 0; diff --git a/newlib/libc/string/strtok.c b/newlib/libc/string/strtok.c index 7640fb73d..01bb09046 100644 --- a/newlib/libc/string/strtok.c +++ b/newlib/libc/string/strtok.c @@ -95,7 +95,9 @@ _DEFUN (strtok, (s, delim), register char *s _AND register const char *delim) { - _REENT_CHECK_MISC(_REENT); - return __strtok_r (s, delim, &(_REENT_STRTOK_LAST(_REENT)), 1); + struct _reent *reent = _REENT; + + _REENT_CHECK_MISC(reent); + return __strtok_r (s, delim, &(_REENT_STRTOK_LAST(reent)), 1); } #endif diff --git a/newlib/libc/sys/epiphany/Makefile.am b/newlib/libc/sys/epiphany/Makefile.am deleted file mode 100644 index c95cca536..000000000 --- a/newlib/libc/sys/epiphany/Makefile.am +++ /dev/null @@ -1,43 +0,0 @@ -# Copyright (c) 2011, Adapteva, Inc. -# All rights reserved. - -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are met: -# * Redistributions of source code must retain the above copyright notice, -# this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above copyright -# notice, this list of conditions and the following disclaimer in the -# documentation and/or other materials provided with the distribution. -# * Neither the name of Adapteva nor the names of its contributors may be -# used to endorse or promote products derived from this software without -# specific prior written permission. - -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE -# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -# POSSIBILITY OF SUCH DAMAGE. - -## Process this file with automake to generate Makefile.in - -AUTOMAKE_OPTIONS = cygnus - -INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS) - -AM_CCASFLAGS = $(INCLUDES) - -noinst_LIBRARIES = lib.a - -# crt0.o comes from libgloss -lib_a_SOURCES = e_printf.c -lib_a_CCASFLAGS = $(AM_CCASFLAGS) -lib_a_CFLAGS = $(AM_CFLAGS) - -ACLOCAL_AMFLAGS = -I ../../.. -I ../../../.. -CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host diff --git a/newlib/libc/sys/epiphany/Makefile.in b/newlib/libc/sys/epiphany/Makefile.in deleted file mode 100644 index e6a7a64e5..000000000 --- a/newlib/libc/sys/epiphany/Makefile.in +++ /dev/null @@ -1,466 +0,0 @@ -# Makefile.in generated by automake 1.11.6 from Makefile.am. -# @configure_input@ - -# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, -# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software -# Foundation, Inc. -# This Makefile.in is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY, to the extent permitted by law; without -# even the implied warranty of MERCHANTABILITY or FITNESS FOR A -# PARTICULAR PURPOSE. - -@SET_MAKE@ - -# Copyright (c) 2011, Adapteva, Inc. -# All rights reserved. - -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are met: -# * Redistributions of source code must retain the above copyright notice, -# this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above copyright -# notice, this list of conditions and the following disclaimer in the -# documentation and/or other materials provided with the distribution. -# * Neither the name of Adapteva nor the names of its contributors may be -# used to endorse or promote products derived from this software without -# specific prior written permission. - -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -# ARE DISCLAIMED. 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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE -dnl LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -dnl CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -dnl SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -dnl INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -dnl CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -dnl ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -dnl POSSIBILITY OF SUCH DAMAGE. - -dnl Process this file with autoconf to produce a configure script. - -AC_PREREQ(2.59) -AC_INIT([newlib],[NEWLIB_VERSION]) -AC_CONFIG_SRCDIR([e_printf.c]) - -dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake. -AC_CONFIG_AUX_DIR(../../../..) - -NEWLIB_CONFIGURE(../../..) - -AC_CONFIG_FILES([Makefile]) -AC_OUTPUT diff --git a/newlib/libc/sys/epiphany/e_printf.c b/newlib/libc/sys/epiphany/e_printf.c deleted file mode 100644 index a93c34320..000000000 --- a/newlib/libc/sys/epiphany/e_printf.c +++ /dev/null @@ -1,150 +0,0 @@ -/* e_printf.c - - Copyright (c) 2011, Adapteva, Inc. - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of Adapteva nor the names of its contributors may be - used to endorse or promote products derived from this software without - specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - POSSIBILITY OF SUCH DAMAGE. */ -#include <stdarg.h> -#include <string.h> - - - - -int trap_7( char *s , int _bsize, int _argsize) { - volatile register void* buff_adrr asm("r0") = s; - volatile register unsigned bsize asm("r1") = _bsize; - volatile register unsigned argsize asm("r2") = _argsize; - volatile register int result asm("r0"); - __asm__ __volatile__ ("trap 7" : "=r" (result) : "r" (buff_adrr), "r" (bsize) , "r" (argsize)); - return result; - -} - -//#include <stdio.h> -//#include <string.h> -//#include <stdlib.h> - -volatile static int*fp_int =0; -volatile int getIntFromFloat(float *f) { - fp_int= (int*)f; - - return *fp_int; -} - - -int e_printf(const char *fmt, ...) { - - char buf[256],*p,*fmt_p; - va_list args; - int percentMet=0; - int pos = 0; - - char *v_arg_s; - unsigned v_arg_int; - float fl_f[1]; - - unsigned fmt_len = strnlen(fmt,128); - - fmt_p = (char*)fmt; - - //printf("---- 111 +++ %d \n", strlen(fmt)); - - va_start(args, fmt); - - p = (char*)buf; - - strcpy(buf,fmt); - pos =fmt_len; - p[pos] = '\0'; - pos++; - - va_start(args, fmt); - - while (*fmt_p) { - -// putchar(*p); -// puts(""); - - if(*fmt_p == '%') { - percentMet=1; - } - if(*fmt_p == 's' && percentMet == 1 ) { - percentMet=0; - v_arg_s = va_arg(args, char *); - if (!v_arg_s) v_arg_s = "<NULL>"; - - strcpy(p + pos , v_arg_s ); - pos+=strlen(v_arg_s); - - p[pos] = '\0'; - pos++; - } - - if((*fmt_p == 'i' || *fmt_p == 'd' || *fmt_p == 'u' || *fmt_p == 'x' || *fmt_p == 'f' ) && percentMet == 1 ) { - percentMet=0; - if(*fmt_p == 'f' ) { - fl_f[0] = (float)va_arg(args, double); - //printf("v_arg_ float --- %f \n", fl_f[0]); - //printf("v_arg_ p --- %x \n", *( (unsigned *)fl_f)); - - v_arg_int = getIntFromFloat (fl_f); - - //v_arg_int = 0; - - } else { - v_arg_int = (int)va_arg(args, int); - } - -// if(*fmt_p == 'd') { -// printf("v_arg_int --- %d \n", v_arg_int); -// } -// if(*fmt_p == 'x') { -// printf("v_arg_int --- %x \n", v_arg_int); -// } -// if(*fmt_p == 'f') { -// printf("fff++v_arg_int --- %x \n", v_arg_int); -// fl = (float*)&v_arg_int; -// printf("fff++ v_arg_float --- %f \n", *fl); -// } - - *(p + pos) = ((v_arg_int>>24) & 0xff); - pos++; - *(p + pos) = ((v_arg_int>>16) & 0xff); - pos++; - *(p + pos) = ((v_arg_int>>8) & 0xff); - pos++; - *(p + pos) = ((v_arg_int>>0) & 0xff); - pos++; - } - - fmt_p++; - } - - va_end(args); - - //printf(" +++ %d %d \n" , strlen(fmt), pos); - - return trap_7((char*)buf ,fmt_len, pos) ; - //return 1; -} diff --git a/newlib/libc/time/asctime.c b/newlib/libc/time/asctime.c index 4c4640861..024310bbf 100644 --- a/newlib/libc/time/asctime.c +++ b/newlib/libc/time/asctime.c @@ -57,8 +57,10 @@ char * _DEFUN (asctime, (tim_p), _CONST struct tm *tim_p) { - _REENT_CHECK_ASCTIME_BUF(_REENT); - return asctime_r (tim_p, _REENT_ASCTIME_BUF(_REENT)); + struct _reent *reent = _REENT; + + _REENT_CHECK_ASCTIME_BUF(reent); + return asctime_r (tim_p, _REENT_ASCTIME_BUF(reent)); } #endif diff --git a/newlib/libc/time/gmtime.c b/newlib/libc/time/gmtime.c index 4d3dfff4c..141d20327 100644 --- a/newlib/libc/time/gmtime.c +++ b/newlib/libc/time/gmtime.c @@ -61,8 +61,10 @@ struct tm * _DEFUN (gmtime, (tim_p), _CONST time_t * tim_p) { - _REENT_CHECK_TM(_REENT); - return gmtime_r (tim_p, (struct tm *)_REENT_TM(_REENT)); + struct _reent *reent = _REENT; + + _REENT_CHECK_TM(reent); + return gmtime_r (tim_p, (struct tm *)_REENT_TM(reent)); } #endif diff --git a/newlib/libc/time/lcltime.c b/newlib/libc/time/lcltime.c index 399ab6901..16162bfb0 100644 --- a/newlib/libc/time/lcltime.c +++ b/newlib/libc/time/lcltime.c @@ -53,8 +53,10 @@ struct tm * _DEFUN (localtime, (tim_p), _CONST time_t * tim_p) { - _REENT_CHECK_TM(_REENT); - return localtime_r (tim_p, (struct tm *)_REENT_TM(_REENT)); + struct _reent *reent = _REENT; + + _REENT_CHECK_TM(reent); + return localtime_r (tim_p, (struct tm *)_REENT_TM(reent)); } #endif |