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- /*
- * Copyright (C) 2017 Hangzhou C-SKY Microsystems co.,ltd.
- *
- * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB
- * in this tarball.
- */
- #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 */
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