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/* This file is based on the asm/unistd.h kernel header file.
* Including asm/unistd.h is hereby officially forbidden.
* Don't do it. It is bad for you. */
#include <features.h>
/* FIXME: perhaps sh needs separate PIC syscalls? */
#define __syscall_return(type, res) \
do { \
if ((unsigned long)(res) >= (unsigned long)(-125)) { \
/* Avoid using "res" which is declared to be in register r0; \
errno might expand to a function call and clobber it. */ \
int __err = -(res); \
errno = __err; \
res = -1; \
} \
return (type) (res); \
} while (0)
/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
#define _syscall0(type,name) \
type name(void) \
{ \
register long __sc0 __asm__ ("r3") = __NR_##name; \
__asm__ __volatile__ ("trapa #0x10" \
: "=z" (__sc0) \
: "0" (__sc0) \
: "memory" ); \
__syscall_return(type,__sc0); \
}
#define _syscall1(type,name,type1,arg1) \
type name(type1 arg1) \
{ \
register long __sc0 __asm__ ("r3") = __NR_##name; \
register long __sc4 __asm__ ("r4") = (long) arg1; \
__asm__ __volatile__ ("trapa #0x11" \
: "=z" (__sc0) \
: "0" (__sc0), "r" (__sc4) \
: "memory"); \
__syscall_return(type,__sc0); \
}
#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1,type2 arg2) \
{ \
register long __sc0 __asm__ ("r3") = __NR_##name; \
register long __sc4 __asm__ ("r4") = (long) arg1; \
register long __sc5 __asm__ ("r5") = (long) arg2; \
__asm__ __volatile__ ("trapa #0x12" \
: "=z" (__sc0) \
: "0" (__sc0), "r" (__sc4), "r" (__sc5) \
: "memory"); \
__syscall_return(type,__sc0); \
}
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
type name(type1 arg1,type2 arg2,type3 arg3) \
{ \
register long __sc0 __asm__ ("r3") = __NR_##name; \
register long __sc4 __asm__ ("r4") = (long) arg1; \
register long __sc5 __asm__ ("r5") = (long) arg2; \
register long __sc6 __asm__ ("r6") = (long) arg3; \
__asm__ __volatile__ ("trapa #0x13" \
: "=z" (__sc0) \
: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6) \
: "memory"); \
__syscall_return(type,__sc0); \
}
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
{ \
register long __sc0 __asm__ ("r3") = __NR_##name; \
register long __sc4 __asm__ ("r4") = (long) arg1; \
register long __sc5 __asm__ ("r5") = (long) arg2; \
register long __sc6 __asm__ ("r6") = (long) arg3; \
register long __sc7 __asm__ ("r7") = (long) arg4; \
__asm__ __volatile__ ("trapa #0x14" \
: "=z" (__sc0) \
: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6), \
"r" (__sc7) \
: "memory" ); \
__syscall_return(type,__sc0); \
}
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
{ \
register long __sc3 __asm__ ("r3") = __NR_##name; \
register long __sc4 __asm__ ("r4") = (long) arg1; \
register long __sc5 __asm__ ("r5") = (long) arg2; \
register long __sc6 __asm__ ("r6") = (long) arg3; \
register long __sc7 __asm__ ("r7") = (long) arg4; \
register long __sc0 __asm__ ("r0") = (long) arg5; \
__asm__ __volatile__ ("trapa #0x15" \
: "=z" (__sc0) \
: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6), "r" (__sc7), \
"r" (__sc3) \
: "memory" ); \
__syscall_return(type,__sc0); \
}
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