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#ifndef _BITS_SYSCALLS_H
#define _BITS_SYSCALLS_H
#ifndef _SYSCALL_H
# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
#endif
#include <features.h>
/* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel
* header files. It also defines the traditional `SYS_<name>' macros for older
* programs. */
#include <bits/sysnum.h>
/* This code is mostly cut & paste from the uClinux bfin port */
#ifndef __ASSEMBLER__
#define __syscall_return(type, res) \
do { \
if ((unsigned long)(res) >= (unsigned long)(-125)) \
{ __set_errno(-(res)); \
res = -1; \
} \
return (type) (res); \
} while (0)
#define _syscall0(type,name) \
type name(void) { \
long __res; \
__asm__ __volatile__ ( \
"p0 = %1;\n\t" \
"excpt 0;\n\t" \
"%0=r0;\n\t" \
: "=da" (__res) \
: "i" (__NR_##name) \
: "CC", "P0"); \
__syscall_return(type,__res); \
}
#define _syscall1(type,name,type1,arg1) \
type name(type1 arg1) { \
long __res; \
__asm__ __volatile__ ( \
"r0=%2;\n\t" \
"p0=%1;\n\t" \
"excpt 0;\n\t" \
"%0=r0;\n\t" \
: "=da" (__res) \
: "i" (__NR_##name), \
"a" ((long)(arg1)) \
: "CC", "R0", "P0"); \
__syscall_return(type,__res); \
}
#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1,type2 arg2) { \
long __res; \
__asm__ __volatile__ ( \
"r1=%3;\n\t" \
"r0=%2;\n\t" \
"p0=%1;\n\t" \
"excpt 0;\n\t" \
"%0=r0;\n\t" \
: "=da" (__res) \
: "i" (__NR_##name), \
"a" ((long)(arg1)), \
"a" ((long)(arg2)) \
: "CC", "R0","R1", "P0"); \
__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__ ( \
"r2=%4;\n\t" \
"r1=%3;\n\t" \
"r0=%2;\n\t" \
"p0=%1;\n\t" \
"excpt 0;\n\t" \
"%0=r0;\n\t" \
: "=da" (__res) \
: "i" (__NR_##name), \
"a" ((long)(arg1)), \
"a" ((long)(arg2)), \
"a" ((long)(arg3)) \
: "CC", "R0","R1","R2", "P0"); \
__syscall_return(type,__res); \
}
#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__ ( \
"[--sp] = r3;\n\t" \
"r3=%5;\n\t" \
"r2=%4;\n\t" \
"r1=%3;\n\t" \
"r0=%2;\n\t" \
"p0=%1;\n\t" \
"excpt 0;\n\t" \
"%0=r0;\n\t" \
"r3 = [sp++];\n\t" \
: "=da" (__res) \
: "i" (__NR_##name), \
"a" ((long)(arg1)), \
"a" ((long)(arg2)), \
"a" ((long)(arg3)), \
"a" ((long)(arg4)) \
: "CC", "R0","R1","R2","R3", "P0"); \
__syscall_return(type,__res); \
}
#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) { \
long __res; \
__asm__ __volatile__ ( \
"[--sp] = r4;\n\t" \
"[--sp] = r3;\n\t" \
"r4=%6;\n\t" \
"r3=%5;\n\t" \
"r2=%4;\n\t" \
"r1=%3;\n\t" \
"r0=%2;\n\t" \
"P0=%1;\n\t" \
"excpt 0;\n\t" \
"%0=r0;\n\t" \
"r3 = [sp++];\n\t" \
"r4 = [sp++];\n\t" \
: "=da" (__res) \
: "i" (__NR_##name), \
"rm" ((long)(arg1)), \
"rm" ((long)(arg2)), \
"rm" ((long)(arg3)), \
"rm" ((long)(arg4)), \
"rm" ((long)(arg5)) \
: "CC","R0","R1","R2","R3","R4","P0"); \
__syscall_return(type,__res); \
}
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
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