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/*
* This file contains the system call macros and syscall
* numbers used by the shared library loader.
*/
#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); \
}
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