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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)
- #define INLINE_SYSCALL_NCS(name, nr, args...) \
- (__extension__ \
- ({ \
- unsigned int _inline_sys_result = INTERNAL_SYSCALL_NCS (name, , nr, args);\
- if (unlikely (INTERNAL_SYSCALL_ERROR_P (_inline_sys_result, ))) \
- { \
- __set_errno (INTERNAL_SYSCALL_ERRNO (_inline_sys_result, )); \
- _inline_sys_result = (unsigned int) -1; \
- } \
- (int) _inline_sys_result; \
- }) \
- )
- #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
- (__extension__ \
- ({unsigned int __internal_sys_result; \
- { \
- register int __a1 __asm__ ("gr8"); \
- register int _nr __asm__ ("gr7"); \
- LOAD_ARGS_##nr (args) \
- _nr = (name); \
- __asm__ __volatile__ ("tra gr0,gr0" \
- : "=r" (__a1) \
- : "r" (_nr) ASM_ARGS_##nr \
- : "memory"); \
- __internal_sys_result = __a1; \
- } \
- (int) __internal_sys_result; }) \
- )
- #define INTERNAL_SYSCALL_ERROR_P(val, err) \
- ((unsigned int) (val) >= 0xfffff001u)
- #define LOAD_ARGS_0()
- #define ASM_ARGS_0
- #define LOAD_ARGS_1(a1) \
- int __a1tmp = (int) (a1); \
- LOAD_ARGS_0 () \
- __a1 = __a1tmp;
- #define ASM_ARGS_1 ASM_ARGS_0, "r" (__a1)
- #define LOAD_ARGS_2(a1, a2) \
- int __a2tmp = (int) (a2); \
- LOAD_ARGS_1 (a1) \
- register int __a2 __asm__ ("gr8") = __a2tmp;
- #define ASM_ARGS_2 ASM_ARGS_1, "r" (__a2)
- #define LOAD_ARGS_3(a1, a2, a3) \
- int __a3tmp = (int) (a3); \
- LOAD_ARGS_2 (a1, a2) \
- register int __a3 __asm__ ("gr9") = __a3tmp;
- #define ASM_ARGS_3 ASM_ARGS_2, "r" (__a3)
- #define LOAD_ARGS_4(a1, a2, a3, a4) \
- int __a4tmp = (int) (a4); \
- LOAD_ARGS_3 (a1, a2, a3) \
- register int __a4 __asm__ ("gr10") = __a4tmp;
- #define ASM_ARGS_4 ASM_ARGS_3, "r" (__a4)
- #define LOAD_ARGS_5(a1, a2, a3, a4, a5) \
- int __v1tmp = (int) (a5); \
- LOAD_ARGS_4 (a1, a2, a3, a4) \
- register int __v1 __asm__ ("gr11") = __v1tmp;
- #define ASM_ARGS_5 ASM_ARGS_4, "r" (__v1)
- #define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \
- int __v2tmp = (int) (a6); \
- LOAD_ARGS_5 (a1, a2, a3, a4, a5) \
- register int __v2 __asm__ ("gr12") = __v2tmp;
- #define ASM_ARGS_6 ASM_ARGS_5, "r" (__v2)
- #endif /* __ASSEMBLER__ */
- #endif /* _BITS_SYSCALLS_H */
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