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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
- #ifdef __ASSEMBLER__
- #undef DO_CALL
- #define DO_CALL(syscall_name) \
- l.lwz r11, =SYS_ify (syscall_name)
- l.sys 1 \
- l.nop
- #else
- #include <errno.h>
- #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
- ({ unsigned long __sys_result
- { \
- register long __sc_ret __asm__ ("r11") = name
- LOAD_ARGS_##nr (args) \
- __asm__ __volatile__ ("l.sys 1" \
- : "=r" (__sc_ret) ASM_ARGS_OUT_##nr \
- : "0" (__sc_ret) ASM_ARGS_IN_##nr \
- : ASM_CLOBBERS_##nr \
- "r12", "r13", "r15", "r17", "r19", \
- "r21", "r23", "r25", "r27", "r29", \
- "r31")
- __asm__ __volatile__ ("l.nop")
- __sys_result = __sc_ret
- } \
- (long) __sys_result
-
- #define LOAD_ARGS_0()
- #define ASM_ARGS_OUT_0
- #define ASM_ARGS_IN_0
- #define ASM_CLOBBERS_0 "r3", ASM_CLOBBERS_1
- #define LOAD_ARGS_1(a) \
- LOAD_ARGS_0 () \
- register long __a __asm__ ("r3") = (long)(a)
- #define ASM_ARGS_OUT_1 ASM_ARGS_OUT_0, "=r" (__a)
- #define ASM_ARGS_IN_1 ASM_ARGS_IN_0, "1" (__a)
- #define ASM_CLOBBERS_1 "r4", ASM_CLOBBERS_2
- #define LOAD_ARGS_2(a, b) \
- LOAD_ARGS_1 (a) \
- register long __b __asm__ ("r4") = (long)(b)
- #define ASM_ARGS_OUT_2 ASM_ARGS_OUT_1, "=r" (__b)
- #define ASM_ARGS_IN_2 ASM_ARGS_IN_1, "2" (__b)
- #define ASM_CLOBBERS_2 "r5", ASM_CLOBBERS_3
- #define LOAD_ARGS_3(a, b, c) \
- LOAD_ARGS_2 (a, b) \
- register long __c __asm__ ("r5") = (long)(c)
- #define ASM_ARGS_OUT_3 ASM_ARGS_OUT_2, "=r" (__c)
- #define ASM_ARGS_IN_3 ASM_ARGS_IN_2, "3" (__c)
- #define ASM_CLOBBERS_3 "r6", ASM_CLOBBERS_4
- #define LOAD_ARGS_4(a, b, c, d) \
- LOAD_ARGS_3 (a, b, c) \
- register long __d __asm__ ("r6") = (long)(d)
- #define ASM_ARGS_OUT_4 ASM_ARGS_OUT_3, "=r" (__d)
- #define ASM_ARGS_IN_4 ASM_ARGS_IN_3, "4" (__d)
- #define ASM_CLOBBERS_4 "r7", ASM_CLOBBERS_5
- #define LOAD_ARGS_5(a, b, c, d, e) \
- LOAD_ARGS_4 (a, b, c, d) \
- register long __e __asm__ ("r7") = (long)(e)
- #define ASM_ARGS_OUT_5 ASM_ARGS_OUT_4, "=r" (__e)
- #define ASM_ARGS_IN_5 ASM_ARGS_IN_4, "5" (__e)
- #define ASM_CLOBBERS_5 "r8", ASM_CLOBBERS_6
- #define LOAD_ARGS_6(a, b, c, d, e, f) \
- LOAD_ARGS_5 (a, b, c, d, e) \
- register long __f __asm__ ("r8") = (long)(f)
- #define ASM_ARGS_OUT_6 ASM_ARGS_OUT_5, "=r" (__f)
- #define ASM_ARGS_IN_6 ASM_ARGS_IN_5, "6" (__f)
- #define ASM_CLOBBERS_6
- #endif
- #endif
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