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- #ifndef _BITS_SYSCALLS_H
- #define _BITS_SYSCALLS_H
- #ifndef _SYSCALL_H
- #error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."
- #endif
- /* Include the __NR_<name> definitions. */
- #include <bits/sysnum.h>
- #if 0
- #ifndef __set_errno
- #define __set_errno(val) (*__errno_location()) = (val)
- #endif
- #endif
- #undef SYS_ify
- #define SYS_ify(syscall_name) (__NR_##syscall_name)
- #ifndef __ASSEMBLER__
- #undef _syscall0
- #define _syscall0(type,name) \
- type name(void) \
- { \
- return (type) (INLINE_SYSCALL(name, 0)); \
- }
- #undef _syscall1
- #define _syscall1(type,name,type1,arg1) \
- type name(type1 arg1) \
- { \
- return (type) (INLINE_SYSCALL(name, 1, arg1)); \
- }
- #undef _syscall2
- #define _syscall2(type,name,type1,arg1,type2,arg2) \
- type name(type1 arg1,type2 arg2) \
- { \
- return (type) (INLINE_SYSCALL(name, 2, arg1, arg2)); \
- }
- #undef _syscall3
- #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
- type name(type1 arg1,type2 arg2,type3 arg3) \
- { \
- return (type) (INLINE_SYSCALL(name, 3, arg1, arg2, arg3)); \
- }
- #undef _syscall4
- #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
- type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
- { \
- return (type) (INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4)); \
- }
- #undef _syscall5
- #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) \
- { \
- return (type) (INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5)); \
- }
- #undef INLINE_SYSCALL
- #define INLINE_SYSCALL(name, nr, args...) \
- ({ \
- unsigned long __sys_res; \
- register unsigned long __res asm ("r10"); \
- LOAD_ARGS_c_##nr (args) \
- register unsigned long __callno asm ("r9") \
- = SYS_ify (name); \
- asm volatile (LOAD_ARGS_asm_##nr (args) \
- CHECK_ARGS_asm_##nr \
- "break 13" \
- : "=r" (__res) \
- : ASM_ARGS_##nr (args) \
- : ASM_CLOBBER_##nr); \
- __sys_res = __res; \
- \
- if (__sys_res >= (unsigned long) -4096) \
- { \
- __set_errno (- __sys_res); \
- __sys_res = (unsigned long) -1; \
- } \
- __sys_res; \
- })
- #define LOAD_ARGS_c_0()
- #define LOAD_ARGS_asm_0()
- #define ASM_CLOBBER_0 "memory"
- #define ASM_ARGS_0() "r" (__callno)
- #define CHECK_ARGS_asm_0
- #define LOAD_ARGS_c_1(r10) \
- LOAD_ARGS_c_0() \
- register unsigned long __r10 __asm__ ("r10") = (unsigned long) (r10);
- #define LOAD_ARGS_asm_1(r10) LOAD_ARGS_asm_0 ()
- #define ASM_CLOBBER_1 ASM_CLOBBER_0
- #define ASM_ARGS_1(r10) ASM_ARGS_0 (), "0" (__r10)
- #define CHECK_ARGS_asm_1 \
- ".ifnc %0,$r10\n\t" \
- ".err\n\t" \
- ".endif\n\t"
- #define LOAD_ARGS_c_2(r10, r11) \
- LOAD_ARGS_c_1(r10) \
- register unsigned long __r11 __asm__ ("r11") = (unsigned long) (r11);
- #define LOAD_ARGS_asm_2(r10, r11) LOAD_ARGS_asm_1 (r10)
- #define ASM_CLOBBER_2 ASM_CLOBBER_1
- #define ASM_ARGS_2(r10, r11) ASM_ARGS_1 (r10), "r" (__r11)
- #define CHECK_ARGS_asm_2 \
- ".ifnc %0-%3,$r10-$r11\n\t" \
- ".err\n\t" \
- ".endif\n\t"
- #define LOAD_ARGS_c_3(r10, r11, r12) \
- LOAD_ARGS_c_2(r10, r11) \
- register unsigned long __r12 __asm__ ("r12") = (unsigned long) (r12);
- #define LOAD_ARGS_asm_3(r10, r11, r12) LOAD_ARGS_asm_2 (r10, r11)
- #define ASM_CLOBBER_3 ASM_CLOBBER_2
- #define ASM_ARGS_3(r10, r11, r12) ASM_ARGS_2 (r10, r11), "r" (__r12)
- #define CHECK_ARGS_asm_3 \
- ".ifnc %0-%3-%4,$r10-$r11-$r12\n\t" \
- ".err\n\t" \
- ".endif\n\t"
- #define LOAD_ARGS_c_4(r10, r11, r12, r13) \
- LOAD_ARGS_c_3(r10, r11, r12) \
- register unsigned long __r13 __asm__ ("r13") = (unsigned long) (r13);
- #define LOAD_ARGS_asm_4(r10, r11, r12, r13) LOAD_ARGS_asm_3 (r10, r11, r12)
- #define ASM_CLOBBER_4 ASM_CLOBBER_3
- #define ASM_ARGS_4(r10, r11, r12, r13) ASM_ARGS_3 (r10, r11, r12), "r" (__r13)
- #define CHECK_ARGS_asm_4 \
- ".ifnc %0-%3-%4-%5,$r10-$r11-$r12-$r13\n\t" \
- ".err\n\t" \
- ".endif\n\t"
- #define LOAD_ARGS_c_5(r10, r11, r12, r13, mof) \
- LOAD_ARGS_c_4(r10, r11, r12, r13)
- #define LOAD_ARGS_asm_5(r10, r11, r12, r13, mof) \
- LOAD_ARGS_asm_4 (r10, r11, r12, r13) "move %6,$mof\n\t"
- #define ASM_CLOBBER_5 ASM_CLOBBER_4
- #define ASM_ARGS_5(r10, r11, r12, r13, mof) \
- ASM_ARGS_4 (r10, r11, r12, r13), "g" (mof)
- #define CHECK_ARGS_asm_5 CHECK_ARGS_asm_4
- #define LOAD_ARGS_c_6(r10, r11, r12, r13, mof, srp) \
- LOAD_ARGS_c_5(r10, r11, r12, r13, mof)
- #define LOAD_ARGS_asm_6(r10, r11, r12, r13, mof, srp) \
- LOAD_ARGS_asm_5(r10, r11, r12, r13, mof) \
- "move %7,$srp\n\t"
- #define ASM_CLOBBER_6 ASM_CLOBBER_5, "srp"
- #define ASM_ARGS_6(r10, r11, r12, r13, mof, srp) \
- ASM_ARGS_5 (r10, r11, r12, r13, mof), "g" (srp)
- #define CHECK_ARGS_asm_6 CHECK_ARGS_asm_5
- #endif /* not __ASSEMBLER__ */
- #endif /* _BITS_SYSCALLS_H */
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