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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
#ifndef __ASSEMBLER__
#include <errno.h>
#define SYS_ify(syscall_name) (__NR_##syscall_name)
#undef __SYSCALL_STRING
# define __SYSCALL_STRING \
"swe\n\t" \
"nop\n\t"
# define __SYSCALL_RES_CHECK (__res < -255 || __res >= 0)
#define __SYSCALL_CLOBBERS "cc", "memory"
#define __SYSCALL_RETURN(type) \
if (__SYSCALL_RES_CHECK) \
return (type) __res; \
__set_errno (-__res); \
return (type) -1;
#ifndef NOT_IN_libc
#define DEBUG_SYSCALL(name) { \
char d[64];\
write( 2, d, snprintf( d, 64, "syscall %d error %d\n", __NR_##name, _inline_sys_result)); \
}
#else
#define DEBUG_SYSCALL(name) do{} while(0)
#endif
#undef INLINE_SYSCALL
#define INLINE_SYSCALL(name, nr, args...) \
({ unsigned int _inline_sys_result = INTERNAL_SYSCALL (name, , nr, args); \
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_inline_sys_result, ), 0)) \
{ \
__set_errno (INTERNAL_SYSCALL_ERRNO (_inline_sys_result, )); \
_inline_sys_result = (unsigned int) -1; \
} \
(int) _inline_sys_result; })
#undef INLINE_SYSCALL_NOERR
#define INLINE_SYSCALL_NOERR(name, nr, args...) \
({ unsigned int _inline_sys_result = INTERNAL_SYSCALL (name, , nr, args); \
(int) _inline_sys_result; })
#undef INTERNAL_SYSCALL_DECL
#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
#define INTERNAL_SYSCALL( name, err, nr, args...) \
INTERNAL_SYSCALL_NCS( __NR_##name, err, nr, args )
#define INTERNAL_SYSCALL_NCS(sys_num, err, nr, args...) \
({ \
register long __A4 __asm__("A4"); \
register long __b0 __asm__("B0") = sys_num; \
LOAD_ARGS_##nr(args) \
__asm__ __volatile__(__SYSCALL_STRING \
: "=a" (__A4) \
: "b" (__b0) ASM_ARGS_##nr \
: __SYSCALL_CLOBBERS ); \
(int)__A4; \
})
#undef INTERNAL_SYSCALL_ERROR_P
#define INTERNAL_SYSCALL_ERROR_P(val, err) \
((unsigned int) (val) >= 0xfffff001u)
#undef INTERNAL_SYSCALL_ERRNO
#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
#if 0
# define CALL_ERRNO_LOCATION "call __errno_location;"
#define __CLONE_SYSCALL_STRING \
"ta 0x10;" \
"bcs 2f;" \
" sub %%o1, 1, %%o1;" \
"and %%A4, %%o1, %%A4;" \
"1:" \
".subsection 2;" \
"2:" \
"save %%sp, -192, %%sp;" \
CALL_ERRNO_LOCATION \
" nop;" \
"st %%i0, [%%A4];" \
"ba 1b;" \
" restore %%g0, -1, %%A4;" \
".previous;"
#define INLINE_CLONE_SYSCALL(arg1,arg2,arg3,arg4,arg5) \
({ \
register long __A4 __asm__ ("A4") = (long)(arg1); \
register long __B4 __asm__ ("B4") = (long)(arg2); \
register long __A6 __asm__ ("A6") = (long)(arg3); \
register long __B6 __asm__ ("B6") = (long)(arg4); \
register long __A8 __asm__ ("A8") = (long)(arg5); \
register long __g1 __asm__ ("g1") = __NR_clone; \
__asm __volatile (__CLONE_SYSCALL_STRING : \
"=r" (__g1), "=r" (__A4), "=r" (__B4) : \
"0" (__g1), "1" (__A4), "2" (__B4), \
"r" (__A6), "r" (__B6), "r" (__A8) : \
__SYSCALL_CLOBBERS); \
__A4; \
})
#endif
#define LOAD_ARGS_0()
#define ASM_ARGS_0
#define LOAD_ARGS_1(A4) \
__A4 = (int)A4; \
LOAD_ARGS_0()
#define ASM_ARGS_1 ASM_ARGS_0, "a" (__A4)
#define LOAD_ARGS_2(A4, B4) \
register int __B4 __asm__ ("B4") = (int) (B4); \
LOAD_ARGS_1 (A4)
#define ASM_ARGS_2 ASM_ARGS_1, "b" (__B4)
#define LOAD_ARGS_3(A4, B4, A6) \
register int __A6 __asm__ ("A6") = (int) (A6); \
LOAD_ARGS_2 (A4, B4)
#define ASM_ARGS_3 ASM_ARGS_2, "a" (__A6)
#define LOAD_ARGS_4(A4, B4, A6, B6) \
register int __B6 __asm__ ("B6") = (int) (B6); \
LOAD_ARGS_3 (A4, B4, A6)
#define ASM_ARGS_4 ASM_ARGS_3, "b" (__B6)
#define LOAD_ARGS_5(A4, B4, A6, B6, A8) \
register int __A8 __asm__ ("A8") = (int) (A8); \
LOAD_ARGS_4 (A4, B4, A6, B6)
#define ASM_ARGS_5 ASM_ARGS_4, "a" (__A8)
#define LOAD_ARGS_6(A4, B4, A6, B6, A8, B8) \
register int __B8 __asm__ ("B8") = (int) (B8); \
LOAD_ARGS_5 (A4, B4, A6, B6, A8)
#define ASM_ARGS_6 ASM_ARGS_5, "b" (__B8)
#ifndef _syscall0
#define C_DECL_ARGS_0() void
#define C_DECL_ARGS_1(t, v) t v
#define C_DECL_ARGS_2(t, v, args...) t v, C_DECL_ARGS_1(args)
#define C_DECL_ARGS_3(t, v, args...) t v, C_DECL_ARGS_2(args)
#define C_DECL_ARGS_4(t, v, args...) t v, C_DECL_ARGS_3(args)
#define C_DECL_ARGS_5(t, v, args...) t v, C_DECL_ARGS_4(args)
#define C_DECL_ARGS_6(t, v, args...) t v, C_DECL_ARGS_5(args)
#define C_ARGS_0()
#define C_ARGS_1(t, v) v
#define C_ARGS_2(t, v, args...) v, C_ARGS_1(args)
#define C_ARGS_3(t, v, args...) v, C_ARGS_2(args)
#define C_ARGS_4(t, v, args...) v, C_ARGS_3(args)
#define C_ARGS_5(t, v, args...) v, C_ARGS_4(args)
#define C_ARGS_6(t, v, args...) v, C_ARGS_5(args)
#define SYSCALL_FUNC(nargs, type, name, args...) \
type name(C_DECL_ARGS_##nargs(args)) { \
return (type)INLINE_SYSCALL(name, nargs, C_ARGS_##nargs(args)); \
}
#define SYSCALL_NOERR_FUNC(nargs, type, name, args...) \
type name(C_DECL_ARGS_##nargs(args)) { \
return (type)INLINE_SYSCALL_NOERR(name, nargs, C_ARGS_##nargs(args)); \
}
#define _syscall0(args...) SYSCALL_FUNC(0, args)
#define _syscall_noerr0(args...) SYSCALL_NOERR_FUNC(0, args)
#define _syscall1(args...) SYSCALL_FUNC(1, args)
#define _syscall_noerr1(args...) SYSCALL_NOERR_FUNC(1, args)
#define _syscall2(args...) SYSCALL_FUNC(2, args)
#define _syscall3(args...) SYSCALL_FUNC(3, args)
#define _syscall4(args...) SYSCALL_FUNC(4, args)
#define _syscall5(args...) SYSCALL_FUNC(5, args)
#define _syscall6(args...) SYSCALL_FUNC(6, args)
#endif /* _syscall0 */
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
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