diff options
Diffstat (limited to 'libc/sysdeps/linux/csky/bits/syscalls.h')
| -rw-r--r-- | libc/sysdeps/linux/csky/bits/syscalls.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/csky/bits/syscalls.h b/libc/sysdeps/linux/csky/bits/syscalls.h new file mode 100644 index 000000000..04d01f4ca --- /dev/null +++ b/libc/sysdeps/linux/csky/bits/syscalls.h @@ -0,0 +1,113 @@ +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H +#ifndef _SYSCALL_H +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + +#undef __NR_iopl +#undef __NR_vm86 + +/* + Some of the sneaky macros in the code were taken from + glibc-2.3.2/sysdeps/unix/sysv/linux/arm/sysdep.h +*/ + +//#include <errno.h> + +#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; \ + }) \ +) + +#undef INTERNAL_SYSCALL_NCS +#ifndef __cskyabiv2__ +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ + ({unsigned int __sys_result; \ + { \ + register int _a1 __asm__ ("a0"), _nr __asm__ ("r1"); \ + LOAD_ARGS_##nr (args) \ + _nr = (name); \ + __asm__ __volatile__ ("trap 0 \n\t" \ + : "=r" (_a1) \ + : "r" (_nr) ASM_ARGS_##nr \ + : "memory"); \ + __sys_result = _a1; \ + } \ + (int) __sys_result; }) + +#else /* __cskyabiv2__ */ +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ + ({unsigned int __sys_result; \ + { \ + register int _a1 __asm__ ("a0"), _nr __asm__ ("r7"); \ + LOAD_ARGS_##nr (args) \ + _nr = (name); \ + __asm__ __volatile__ ("trap 0 \n\t" \ + : "=r" (_a1) \ + : "r" (_nr) ASM_ARGS_##nr \ + : "memory"); \ + __sys_result = _a1; \ + } \ + (int) __sys_result; }) +#endif /* __ABI_CSKY_V2__ */ + +#define INTERNAL_SYSCALL_ERROR_P(val, err) \ + ((unsigned int) (val) >= 0xfffff001u) + +#define LOAD_ARGS_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__ ("a1") = (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__ ("a2") = (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__ ("a3") = (int) (a4); \ + LOAD_ARGS_3 (a1, a2, a3) +#define ASM_ARGS_4 ASM_ARGS_3, "r" (_a4) + +#ifndef __cskyabiv2__ +#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ + register int _v1 __asm__ ("a4") = (int) (a5); \ + LOAD_ARGS_4 (a1, a2, a3, a4) +#define ASM_ARGS_5 ASM_ARGS_4, "r" (_v1) +#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ + register int _v2 __asm__ ("a5") = (int) (a6); \ + LOAD_ARGS_5 (a1, a2, a3, a4, a5) +#define ASM_ARGS_6 ASM_ARGS_5, "r" (_v2) +#define LOAD_ARGS_7(a1, a2, a3, a4, a5, a6, a7) \ + register int _v3 __asm__ ("r8") = (int) (a7); \ + LOAD_ARGS_6 (a1, a2, a3, a4, a5, a6) +#define ASM_ARGS_7 ASM_ARGS_6, "r" (_v3) +#else /* __cskyabiv2__ */ +#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ + register int _v1 __asm__ ("l0") = (int) (a5); \ + LOAD_ARGS_4 (a1, a2, a3, a4) +#define ASM_ARGS_5 ASM_ARGS_4, "r" (_v1) +#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ + register int _v2 __asm__ ("l1") = (int) (a6); \ + LOAD_ARGS_5 (a1, a2, a3, a4, a5) +#define ASM_ARGS_6 ASM_ARGS_5, "r" (_v2) +#define LOAD_ARGS_7(a1, a2, a3, a4, a5, a6, a7) \ + register int _v3 __asm__ ("l2") = (int) (a7); \ + LOAD_ARGS_6 (a1, a2, a3, a4, a5, a6) +#define ASM_ARGS_7 ASM_ARGS_6, "r" (_v3) +#endif /* __ABI_CSKY_V2__ */ + + +#endif /* _BITS_SYSCALLS_H */ |