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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 INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
- ({ \
- register int _a1 __asm__("r12"); \
- register int _scno __asm__("r8") = name; \
- LOAD_ARGS_##nr (args); \
- __asm__ __volatile__("scall /* syscall " #name " */" \
- : "=r" (_a1) \
- : "r"(_scno) ASM_ARGS_##nr \
- : "cc", "memory"); \
- _a1; \
- })
- #define INTERNAL_SYSCALL_ERROR_P(val, err) \
- ((unsigned int)(val) >= 0xfffff001U)
- #define LOAD_ARGS_0() do { } while(0)
- #define ASM_ARGS_0
- #define LOAD_ARGS_1(a1) \
- _a1 = (int) (a1); \
- LOAD_ARGS_0()
- #define ASM_ARGS_1 ASM_ARGS_0, "r"(_a1)
- #define LOAD_ARGS_2(a1, a2) \
- register int _a2 __asm__("r11") = (int)(a2); \
- LOAD_ARGS_1(a1)
- #define ASM_ARGS_2 ASM_ARGS_1, "r"(_a2)
- #define LOAD_ARGS_3(a1, a2, a3) \
- register int _a3 __asm__("r10") = (int)(a3); \
- LOAD_ARGS_2(a1, a2)
- #define ASM_ARGS_3 ASM_ARGS_2, "r"(_a3)
- #define LOAD_ARGS_4(a1, a2, a3, a4) \
- register int _a4 __asm__("r9") = (int)(a4); \
- LOAD_ARGS_3(a1, a2, a3)
- #define ASM_ARGS_4 ASM_ARGS_3, "r"(_a4)
- #define LOAD_ARGS_5(a1, a2, a3, a4, a5) \
- register int _a5 __asm__("r5") = (int)(a5); \
- LOAD_ARGS_4(a1, a2, a3, a4)
- #define ASM_ARGS_5 ASM_ARGS_4, "r"(_a5)
- #define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \
- register int _a6 __asm__("r3") = (int)(a6); \
- LOAD_ARGS_5(a1, a2, a3, a4, a5)
- #define ASM_ARGS_6 ASM_ARGS_5, "r"(_a6)
- #endif /* __ASSEMBLER__ */
- #endif /* _BITS_SYSCALLS_H */
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