/* syscall for arm/uClibc * * Copyright (C) 2002 by Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include <features.h> #include <errno.h> #include <sys/types.h> #include <sys/syscall.h> long syscall(long sysnum, long a, long b, long c, long d, long e, long f) { #if !defined(__thumb__) register long _r0 __asm__("r0")=(long)(sysnum); register long _r6 __asm__("r6")=(long)(f); register long _r5 __asm__("r5")=(long)(e); register long _r4 __asm__("r4")=(long)(d); register long _r3 __asm__("r3")=(long)(c); register long _r2 __asm__("r2")=(long)(b); register long _r1 __asm__("r1")=(long)(a); __asm__ __volatile__( "swi %1" : "=r"(_r0) : "i"(__NR_syscall), "r"(_r0), "r"(_r1), "r"(_r2), "r"(_r3), "r"(_r4), "r"(_r5), "r"(_r6) : "memory"); #else register long _r7 __asm__("r7")=(long)(sysnum); register long _r5 __asm__("r5")=(long)(f); register long _r4 __asm__("r4")=(long)(e); register long _r3 __asm__("r3")=(long)(d); register long _r2 __asm__("r2")=(long)(c); register long _r1 __asm__("r1")=(long)(b); register long _r0 __asm__("r0")=(long)(a); __asm__ __volatile__( "swi 0" : "=r"(_r0) : "r"(_r0), "r"(_r1), "r"(_r2), "r"(_r3), "r"(_r4), "r"(_r5), "r"(_r7) : "memory"); #endif if(_r0 >=(unsigned long) -4095) { long err = _r0; (*__errno_location())=(-err); _r0=(unsigned long) -1; } return (long) _r0; }