diff options
Diffstat (limited to 'newlib/libc/sys/arc')
| -rw-r--r-- | newlib/libc/sys/arc/Makefile.am | 14 | ||||
| -rw-r--r-- | newlib/libc/sys/arc/Makefile.in | 329 | ||||
| -rw-r--r-- | newlib/libc/sys/arc/aclocal.m4 | 366 | ||||
| -rwxr-xr-x | newlib/libc/sys/arc/configure | 1880 | ||||
| -rw-r--r-- | newlib/libc/sys/arc/configure.in | 12 | ||||
| -rw-r--r-- | newlib/libc/sys/arc/crt0.S | 75 | ||||
| -rw-r--r-- | newlib/libc/sys/arc/isatty.c | 17 | ||||
| -rw-r--r-- | newlib/libc/sys/arc/mem-layout.c | 21 | ||||
| -rw-r--r-- | newlib/libc/sys/arc/sbrk.c | 43 | ||||
| -rw-r--r-- | newlib/libc/sys/arc/sys/syscall.h | 53 | ||||
| -rw-r--r-- | newlib/libc/sys/arc/syscalls.c | 131 |
11 files changed, 0 insertions, 2941 deletions
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It's not clear - what the default linker script should do, so for now we have this. */ - -/* Keep this file separate from sbrk.c so the programmer can supply his/her - own _sbrk_r. This file could go in crt0.S, but I want to keep this in C. - This is all just an experiment anyway. */ - -#ifndef STACK_SIZE -/* Cache lines recycle at 4096 I think, and 4096 is listed as the page size, - so we make the stack size a multiple of it. Not that it's relevant or - anything, but why not base it on *something*? */ -#define STACK_SIZE (4096 * 4) -#endif - -int stack_size asm ("stack_size") = STACK_SIZE; - -#ifndef SBRK_SIZE -#define SBRK_SIZE (4096 * 32) -#endif - -int sbrk_size asm ("sbrk_size") = SBRK_SIZE; diff --git a/newlib/libc/sys/arc/sbrk.c b/newlib/libc/sys/arc/sbrk.c deleted file mode 100644 index 9f863cded..000000000 --- a/newlib/libc/sys/arc/sbrk.c +++ /dev/null @@ -1,43 +0,0 @@ -/* sbrk support */ - -/* The current plan is to have one sbrk handler for all cpus. - Hence use `asm' for each global variable here to avoid the cpu prefix. - We can't intrude on the user's namespace (another reason to use asm). */ - -#include <sys/types.h> -#include <sys/syscall.h> -#include <errno.h> -#include <stddef.h> - -/* These variables are publicly accessible for debugging purposes. - The user is also free to set sbrk_size to something different. - See mem-layout.c. */ - -extern int sbrk_size asm ("sbrk_size"); - -caddr_t sbrk_start asm ("sbrk_start"); -caddr_t sbrk_loc asm ("sbrk_loc"); - -/*caddr_t _sbrk_r (struct _reent *, size_t) asm ("__sbrk_r");*/ - -/* FIXME: We need a semaphore here. */ - -caddr_t -_sbrk_r (struct _reent *r, size_t nbytes) -{ - caddr_t result; - - if ( - /* Ensure we don't underflow. */ - sbrk_loc + nbytes < sbrk_start - /* Ensure we don't overflow. */ - || sbrk_loc + nbytes > sbrk_start + sbrk_size) - { - errno = ENOMEM; - return ((caddr_t) -1); - } - - result = sbrk_loc; - sbrk_loc += nbytes; - return result; -} diff --git a/newlib/libc/sys/arc/sys/syscall.h b/newlib/libc/sys/arc/sys/syscall.h deleted file mode 100644 index b5d8aa2e1..000000000 --- a/newlib/libc/sys/arc/sys/syscall.h +++ /dev/null @@ -1,53 +0,0 @@ -/* ARC system call interface */ - -/* A special version of the flag insn is used to distinguish syscalls from - breakpoints (a breakpoint might be set at the same place). - - The upper 23 bits of the argument to a flag insn are not currently used. - By convention, bit 31 is one to indicate this is a specially coded operand. - The next 15 bits (bits 30-16) can be used for software purposes. - The format isn't documented yet, so the pattern we use here may change. */ - -#define SYSCALL_MARKER 0x80010000 -#define SYSCALL_MAGIC 0x61082300 - -/* Perform a system call. - - If ERR is 0, it succeeded. Otherwise it is a positive value for errno. */ - -#define SYSCALL(op, rc, err, r0, r1, r2) \ -asm volatile ( "\ - mov r0,%2\n\t \ - mov r1,%3\n\t \ - mov r2,%4\n\t \ - mov r3,%5\n\t \ - mov r4,%6\n\t \ - flag %7\n\t \ - nop\n\t \ - nop\n\t \ - nop\n\t \ - mov %0,r0\n\t \ - mov %1,r1" \ - : "=r" (rc), "=r" (err) \ - : "i" (SYSCALL_MAGIC), "r" (op), "r" (r0), "r" (r1), "r" (r2), \ - "i" (1 | SYSCALL_MARKER) \ - : "r0", "r1", "r2", "r3", "r4"); - -#define SYS_exit 1 -#define SYS_open 2 -#define SYS_close 3 -#define SYS_read 4 -#define SYS_write 5 -#define SYS_lseek 6 -#define SYS_link 7 -#define SYS_unlink 8 -#define SYS_chdir 9 -#define SYS_chmod 10 -#define SYS_stat 11 -#define SYS_fstat 12 -#define SYS_access 13 -#define SYS_getpid 14 -#define SYS_kill 15 -#define SYS_time 16 - -#define SYS_MAX 17 diff --git a/newlib/libc/sys/arc/syscalls.c b/newlib/libc/sys/arc/syscalls.c deleted file mode 100644 index 9c578451a..000000000 --- a/newlib/libc/sys/arc/syscalls.c +++ /dev/null @@ -1,131 +0,0 @@ -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/syscall.h> -#include <_ansi.h> -#include <errno.h> -#include <fcntl.h> -#include <stdarg.h> -#include <reent.h> - -_ssize_t -_read_r (struct _reent *r, int fd, void *buf, size_t nbytes) -{ - int err; - _ssize_t rc; - - SYSCALL (SYS_read, rc, err, fd, buf, nbytes); - if (err) - __errno_r (r) = err; - return rc; -} - -_ssize_t -_write_r (struct _reent *r, int fd, const void *buf, size_t nbytes) -{ - int err; - _ssize_t rc; - - SYSCALL (SYS_write, rc, err, fd, buf, nbytes); - if (err) - __errno_r (r) = err; - return rc; -} - -/* FIXME: The prototype in <fcntl.h> for open() uses ..., - but reent.h uses int. */ - -int -_open_r (struct _reent *r, const char *buf, int flags, int mode) -{ - int rc,err; -#if 0 - int mode; - va_list ap; - - va_start (ap, flags); - mode = va_arg (ap, int); - va_end (ap); -#endif - - SYSCALL (SYS_open, rc, err, buf, flags, mode); - if (err) - __errno_r (r) = err; - return rc; -} - -int -_close_r (struct _reent *r, int fd) -{ - int rc,err; - - SYSCALL (SYS_close, rc, err, fd, 0, 0); - if (err) - __errno_r (r) = err; - return rc; -} - -off_t -_lseek_r (struct _reent *r, int fd, off_t offset, int whence) -{ - int err; - off_t rc; - - SYSCALL (SYS_lseek, rc, err, fd, offset, whence); - if (err) - __errno_r (r) = err; - return rc; -} - -int -_fstat_r (struct _reent *r, int fd, struct stat *buf) -{ - int rc,err; - - SYSCALL (SYS_fstat, rc, err, fd, buf, 0); - if (err) - __errno_r (r) = err; - return rc; -} - -/* FIXME: Shouldn't this be _exit_r? */ - -void -_exit (int ret) -{ - int rc,err; - - SYSCALL (SYS_exit, rc, err, ret, 0, 0); - - /* If that failed, use an infinite loop. */ - while (1) - continue; -} - -time_t -_time (time_t *timer) -{ - return 0; -} - -int -_creat_r (struct _reent *r, const char *path, int mode) -{ - return _open_r (r, path, O_CREAT | O_TRUNC, mode); -} - -int -_getpid_r (struct _reent *r) -{ - return 42; -} - -int -_kill_r (struct _reent *r, int pid, int sig) -{ - int rc,err; - - SYSCALL (SYS_kill, rc, err, pid, sig, 0); - if (err) - __errno_r (r) = err; - return rc; -} |