From 79908d67bce75bd564d6f8b8152e36e32f22cd4f Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Fri, 24 Mar 2000 18:17:17 +0000 Subject: Fix compile time warning messages. Add "cc" to list of registers clobbered bu do_AgelSWI --- newlib/libc/sys/arm/syscalls.c | 48 ++++++++++++++++++++++++------------------ 1 file changed, 27 insertions(+), 21 deletions(-) (limited to 'newlib/libc/sys') diff --git a/newlib/libc/sys/arm/syscalls.c b/newlib/libc/sys/arm/syscalls.c index 2fb2ae1fd..795f7784d 100644 --- a/newlib/libc/sys/arm/syscalls.c +++ b/newlib/libc/sys/arm/syscalls.c @@ -15,9 +15,6 @@ #include "swi.h" /* Forward prototypes. */ -#ifndef _PARAMS -#error UGG -#endif int isatty _PARAMS ((int)); clock_t _times _PARAMS ((struct tms *)); int _gettimeofday _PARAMS ((struct timeval *, struct timezone *)); @@ -64,7 +61,7 @@ extern void _EXFUN(__sinit,(struct _reent *)); } \ while (0) -/* Adjust our internal handles to stay away from std* handles */ +/* Adjust our internal handles to stay away from std* handles. */ #define FILE_HANDLE_OFFSET (0x20) static int std_files_checked; @@ -103,18 +100,18 @@ do_AngelSWI (int reason, void * arg) asm volatile ("mov r0, %1; mov r1, %2; swi %a3; mov %0, r0" : "=r" (value) /* Outputs */ : "r" (reason), "r" (arg), "i" (AngelSWI) /* Inputs */ - : "r0", "r1", "r2", "r3", "ip", "lr", "memory" + : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* Clobbers r0 and r1, and lr if in supervisor mode */); /* Accordingly to page 13-77 of ARM DUI 0040D other registers can also be clobbered. Some memory positions may also be changed by a system call, so they should not be kept in registers. Note: we are assuming the manual is right and - Angel is respecting the APCS */ + Angel is respecting the APCS. */ return value; } #endif /* ARM_RDI_MONITOR */ -/* Function to convert std(in|out|err) handles to internal versions */ +/* Function to convert std(in|out|err) handles to internal versions. */ static int remap_handle (int fh) { @@ -205,8 +202,7 @@ wrap (int result) return result; } -/* Returns # chars not! written */ - +/* Returns # chars not! written. */ int _swiread (int file, char * ptr, @@ -243,7 +239,7 @@ _read (int file, if (slot != MAX_OPEN_FILES) openfiles [slot].pos += len - x; - /* x == len is not an error, at least if we want feof() to work */ + /* x == len is not an error, at least if we want feof() to work. */ return len - x; } @@ -274,7 +270,7 @@ _swilseek (int file, ptr += do_AngelSWI (AngelSWI_Reason_FLen, block); } - /* This code only does absolute seeks */ + /* This code only does absolute seeks. */ block[0] = remap_handle (file); block[1] = ptr; res = do_AngelSWI (AngelSWI_Reason_Seek, block); @@ -288,7 +284,7 @@ _swilseek (int file, ptr += res; } - /* This code only does absolute seeks */ + /* This code only does absolute seeks. */ asm ("mov r0, %2; mov r1, %3; swi %a1; mov %0, r0" : "=r" (res) : "i" (SWI_Seek), "r" (fh), "r" (ptr) @@ -298,7 +294,7 @@ _swilseek (int file, if (slot != MAX_OPEN_FILES && res == 0) openfiles[slot].pos = ptr; - /* This is expected to return the position in the file */ + /* This is expected to return the position in the file. */ return res == 0 ? ptr : -1; } @@ -310,7 +306,7 @@ _lseek (int file, return wrap (_swilseek (file, ptr, dir)); } -/* Returns #chars not! written */ +/* Returns #chars not! written. */ int _swiwrite ( int file, @@ -351,6 +347,8 @@ _write (int file, return len - x; } +extern int strlen (const char *); + int _swiopen (const char * path, int flags) @@ -365,7 +363,7 @@ _swiopen (const char * path, if (i == MAX_OPEN_FILES) return -1; - /* The flags are Unix-style, so we need to convert them */ + /* The flags are Unix-style, so we need to convert them. */ #ifdef O_BINARY if (flags & O_BINARY) aflags |= 1; @@ -382,7 +380,7 @@ _swiopen (const char * path, if (flags & O_APPEND) { - aflags &= ~4; /* Can't ask for w AND a; means just 'a' */ + aflags &= ~4; /* Can't ask for w AND a; means just 'a'. */ aflags |= 8; } @@ -450,6 +448,7 @@ _exit (int n) #else asm ("swi %a0" :: "i" (SWI_Exit)); #endif + n = n; } int @@ -461,18 +460,22 @@ _kill (int n, int m) #else asm ("swi %a0" :: "i" (SWI_Exit)); #endif + n = n; m = m; } int _getpid (int n) { return 1; + n = n; } +extern void abort (void); + caddr_t _sbrk (int incr) { - extern char end asm ("end"); /* Defined by the linker */ + extern char end asm ("end"); /* Defined by the linker. */ static char * heap_end; char * prev_heap_end; @@ -492,6 +495,8 @@ _sbrk (int incr) return (caddr_t) prev_heap_end; } +extern void memset (struct stat *, int, unsigned int); + int _fstat (int file, struct stat * st) { @@ -499,6 +504,7 @@ _fstat (int file, struct stat * st) st->st_mode = S_IFCHR; st->st_blksize = 1024; return 0; + file = file; } int @@ -525,7 +531,7 @@ _gettimeofday (struct timeval * tp, struct timezone * tzp) if (tp) { - /* Ask the host for the seconds since the Unix epoch */ + /* Ask the host for the seconds since the Unix epoch. */ #ifdef ARM_RDI_MONITOR tp->tv_sec = do_AngelSWI (AngelSWI_Reason_Time,NULL); #else @@ -538,7 +544,7 @@ _gettimeofday (struct timeval * tp, struct timezone * tzp) tp->tv_usec = 0; } - /* Return fixed data for the timezone */ + /* Return fixed data for the timezone. */ if (tzp) { tzp->tz_minuteswest = 0; @@ -548,7 +554,7 @@ _gettimeofday (struct timeval * tp, struct timezone * tzp) return 0; } -/* Return a clock that ticks at 100Hz. */ +/* Return a clock that ticks at 100Hz. */ clock_t _times (struct tms * tp) { @@ -576,5 +582,5 @@ int isatty (int fd) { return 1; + fd = fd; } - -- cgit v1.2.3