diff options
Diffstat (limited to 'ldso/ldso/arm/dl-syscalls.h')
| -rw-r--r-- | ldso/ldso/arm/dl-syscalls.h | 126 |
1 files changed, 5 insertions, 121 deletions
diff --git a/ldso/ldso/arm/dl-syscalls.h b/ldso/ldso/arm/dl-syscalls.h index 016eb09b0..df14f34fb 100644 --- a/ldso/ldso/arm/dl-syscalls.h +++ b/ldso/ldso/arm/dl-syscalls.h @@ -1,123 +1,7 @@ -/* - * This file contains the system call macros and syscall - * numbers used by the shared library loader. - */ +/* Define the __set_errno macro as nothing so that INLINE_SYSCALL + * won't set errno, which is important since we make system calls + * before the errno symbol is dynamicly linked. */ -#define __NR_SYSCALL_BASE 0x900000 - -#define __NR_exit (__NR_SYSCALL_BASE+ 1) -#define __NR_read (__NR_SYSCALL_BASE+ 3) -#define __NR_write (__NR_SYSCALL_BASE+ 4) -#define __NR_open (__NR_SYSCALL_BASE+ 5) -#define __NR_close (__NR_SYSCALL_BASE+ 6) -#define __NR_getuid (__NR_SYSCALL_BASE+ 24) -#define __NR_geteuid (__NR_SYSCALL_BASE+ 49) -#define __NR_getgid (__NR_SYSCALL_BASE+ 47) -#define __NR_getegid (__NR_SYSCALL_BASE+ 50) -#define __NR_readlink (__NR_SYSCALL_BASE+ 85) -#define __NR_mmap (__NR_SYSCALL_BASE+ 90) -#define __NR_munmap (__NR_SYSCALL_BASE+ 91) -#define __NR_stat (__NR_SYSCALL_BASE+106) -#define __NR_mprotect (__NR_SYSCALL_BASE+125) - - -/* Here are the macros which define how this platform makes - * system calls. This particular variant does _not_ set - * errno (note how it is disabled in __syscall_return) since - * these will get called before the errno symbol is dynamicly - * linked. */ - -/* These are Erik's versions of the syscall routines. His were - * cleaner than mine, so I adopted them instead with some - * reformating. Shane Nay. - */ - -#define __sys2(x) #x -#define __sys1(x) __sys2(x) - -#ifndef __syscall -#define __syscall(name) "swi\t" __sys1(__NR_##name) "\n\t" -#endif - -#undef __syscall_return -#define __syscall_return(type, res) \ -do { \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ - /*errno = -(res);*/ \ - res = -1; \ - } \ - return (type) (res); \ -} while (0) - -#define _syscall0(type,name) \ -type name(void) { \ - long __res; \ - __asm__ __volatile__ ( \ - __syscall(name) \ - "mov %0,r0" \ - :"=r" (__res) : : "r0","lr"); \ - __syscall_return(type,__res); \ -} - -#define _syscall1(type,name,type1,arg1) \ -type name(type1 arg1) { \ - long __res; \ - __asm__ __volatile__ ( \ - "mov\tr0,%1\n\t" \ - __syscall(name) \ - "mov %0,r0" \ - : "=r" (__res) \ - : "r" ((long)(arg1)) \ - : "r0","lr"); \ - __syscall_return(type,__res); \ -} - -#define _syscall2(type,name,type1,arg1,type2,arg2) \ -type name(type1 arg1,type2 arg2) { \ - long __res; \ - __asm__ __volatile__ ( \ - "mov\tr0,%1\n\t" \ - "mov\tr1,%2\n\t" \ - __syscall(name) \ - "mov\t%0,r0" \ - : "=r" (__res) \ - : "r" ((long)(arg1)),"r" ((long)(arg2)) \ - : "r0","r1","lr"); \ - __syscall_return(type,__res); \ -} - - -#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ -type name(type1 arg1,type2 arg2,type3 arg3) { \ - long __res; \ - __asm__ __volatile__ ( \ - "mov\tr0,%1\n\t" \ - "mov\tr1,%2\n\t" \ - "mov\tr2,%3\n\t" \ - __syscall(name) \ - "mov\t%0,r0" \ - : "=r" (__res) \ - : "r" ((long)(arg1)),"r" ((long)(arg2)),"r" ((long)(arg3)) \ - : "r0","r1","r2","lr"); \ - __syscall_return(type,__res); \ -} - -#undef _syscall4 -#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)\ -type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \ - long __res; \ - __asm__ __volatile__ ( \ - "mov\tr0,%1\n\t" \ - "mov\tr1,%2\n\t" \ - "mov\tr2,%3\n\t" \ - "mov\tr3,%4\n\t" \ - __syscall(name) \ - "mov\t%0,r0" \ - : "=r" (__res) \ - : "r" ((long)(arg1)),"r" ((long)(arg2)), \ - "r" ((long)(arg3)),"r" ((long)(arg4)) \ - : "r0","r1","r2","r3","lr"); \ - __syscall_return(type,__res); \ -} - +#define __set_errno(X) +#include "sys/syscall.h" |