diff options
Diffstat (limited to 'libc/sysdeps/linux/cris/bits')
| -rw-r--r-- | libc/sysdeps/linux/cris/bits/syscalls.h | 165 |
1 files changed, 157 insertions, 8 deletions
diff --git a/libc/sysdeps/linux/cris/bits/syscalls.h b/libc/sysdeps/linux/cris/bits/syscalls.h index 5c30e2193..4e9d53e84 100644 --- a/libc/sysdeps/linux/cris/bits/syscalls.h +++ b/libc/sysdeps/linux/cris/bits/syscalls.h @@ -1,10 +1,159 @@ -/* - * nothing needed here until we want pthread support or similar - */ +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H -#include <features.h> -/* Do something very evil for now. Until we include our out syscall - * macros, short circuit bits/syscall.h and use asm/unistd.h instead */ -#define _BITS_SYSCALL_H -#include <asm/unistd.h> +#ifndef _SYSCALL_H +#error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead." +#endif +/* Include the __NR_<name> definitions. */ +#include <bits/syscall.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 */ |