summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/frv/bits/syscalls.h
diff options
context:
space:
mode:
Diffstat (limited to 'libc/sysdeps/linux/frv/bits/syscalls.h')
-rw-r--r--libc/sysdeps/linux/frv/bits/syscalls.h181
1 files changed, 62 insertions, 119 deletions
diff --git a/libc/sysdeps/linux/frv/bits/syscalls.h b/libc/sysdeps/linux/frv/bits/syscalls.h
index b1f532040..b03e8dbe0 100644
--- a/libc/sysdeps/linux/frv/bits/syscalls.h
+++ b/libc/sysdeps/linux/frv/bits/syscalls.h
@@ -10,128 +10,71 @@
#define SYS_ify(syscall_name) (__NR_##syscall_name)
-/* user-visible error numbers are in the range -1 - -4095: see <asm-frv/errno.h> */
-#if defined _LIBC && !defined __set_errno
-# define __syscall_return(type, res) \
-do { \
- unsigned long __sr2 = (res); \
- if (unlikely ((unsigned long)(__sr2) >= (unsigned long)(-4095))) { \
- extern int __syscall_error (int); \
- return (type) __syscall_error (__sr2); \
- } \
- return (type) (__sr2); \
-} while (0)
-#else
-# define __syscall_return(type, res) \
-do { \
- unsigned long __sr2 = (res); \
- if (unlikely ((unsigned long)(__sr2) >= (unsigned long)(-4095))) { \
- __set_errno (-__sr2); \
- __sr2 = -1; \
- } \
- return (type) (__sr2); \
-} while (0)
-#endif
-
-#ifndef __set_errno
-# define __set_errno(val) ((*__errno_location ()) = (val))
-#endif
-
-/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
-
-#define _syscall0(type,name) \
-type name(void) \
-{ \
-register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \
-register unsigned long __sc0 __asm__ ("gr8"); \
-__asm__ __volatile__ ("tra gr0,gr0" \
- : "=r" (__sc0) \
- : "r" (__scnum)); \
-__syscall_return(type,__sc0); \
-}
-
-#define _syscall1(type,name,type1,arg1) \
-type name(type1 arg1) \
-{ \
-register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \
-register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
-__asm__ __volatile__ ("tra gr0,gr0" \
- : "+r" (__sc0) \
- : "r" (__scnum)); \
-__syscall_return(type,__sc0); \
-}
-
-#define _syscall2(type,name,type1,arg1,type2,arg2) \
-type name(type1 arg1,type2 arg2) \
-{ \
-register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \
-register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
-register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \
-__asm__ __volatile__ ("tra gr0,gr0" \
- : "+r" (__sc0) \
- : "r" (__scnum), "r" (__sc1)); \
-__syscall_return(type,__sc0); \
-}
-
-#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
-type name(type1 arg1,type2 arg2,type3 arg3) \
-{ \
-register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \
-register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
-register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \
-register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \
-__asm__ __volatile__ ("tra gr0,gr0" \
- : "+r" (__sc0) \
- : "r" (__scnum), "r" (__sc1), "r" (__sc2)); \
-__syscall_return(type,__sc0); \
-}
+#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; \
+ }) \
+)
-#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
-type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
-{ \
-register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \
-register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
-register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \
-register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \
-register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \
-__asm__ __volatile__ ("tra gr0,gr0" \
- : "+r" (__sc0) \
- : "r" (__scnum), "r" (__sc1), "r" (__sc2), "r" (__sc3)); \
-__syscall_return(type,__sc0); \
-}
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
+(__extension__ \
+ ({unsigned int __internal_sys_result; \
+ { \
+ register int __a1 __asm__ ("gr8"); \
+ register int _nr __asm__ ("gr7"); \
+ LOAD_ARGS_##nr (args) \
+ _nr = (name); \
+ __asm__ __volatile__ ("tra gr0,gr0" \
+ : "=r" (__a1) \
+ : "r" (_nr) ASM_ARGS_##nr \
+ : "memory"); \
+ __internal_sys_result = __a1; \
+ } \
+ (int) __internal_sys_result; }) \
+)
-#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) \
-{ \
-register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \
-register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
-register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \
-register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \
-register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \
-register unsigned long __sc4 __asm__ ("gr12") = (unsigned long) arg5; \
-__asm__ __volatile__ ("tra gr0,gr0" \
- : "+r" (__sc0) \
- : "r" (__scnum), "r" (__sc1), "r" (__sc2), \
- "r" (__sc3), "r" (__sc4)); \
-__syscall_return(type,__sc0); \
-}
+#define INTERNAL_SYSCALL_ERROR_P(val, err) \
+ ((unsigned int) (val) >= 0xfffff001u)
-#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5, type6, arg6) \
-type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
-{ \
-register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \
-register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
-register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \
-register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \
-register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \
-register unsigned long __sc4 __asm__ ("gr12") = (unsigned long) arg5; \
-register unsigned long __sc5 __asm__ ("gr13") = (unsigned long) arg6; \
-__asm__ __volatile__ ("tra gr0,gr0" \
- : "+r" (__sc0) \
- : "r" (__scnum), "r" (__sc1), "r" (__sc2), \
- "r" (__sc3), "r" (__sc4), "r" (__sc5)); \
-__syscall_return(type,__sc0); \
-}
+#define LOAD_ARGS_0()
+#define ASM_ARGS_0
+#define LOAD_ARGS_1(a1) \
+ int __a1tmp = (int) (a1); \
+ LOAD_ARGS_0 () \
+ __a1 = __a1tmp;
+#define ASM_ARGS_1 ASM_ARGS_0, "r" (__a1)
+#define LOAD_ARGS_2(a1, a2) \
+ int __a2tmp = (int) (a2); \
+ LOAD_ARGS_1 (a1) \
+ register int __a2 __asm__ ("gr8") = __a2tmp;
+#define ASM_ARGS_2 ASM_ARGS_1, "r" (__a2)
+#define LOAD_ARGS_3(a1, a2, a3) \
+ int __a3tmp = (int) (a3); \
+ LOAD_ARGS_2 (a1, a2) \
+ register int __a3 __asm__ ("gr9") = __a3tmp;
+#define ASM_ARGS_3 ASM_ARGS_2, "r" (__a3)
+#define LOAD_ARGS_4(a1, a2, a3, a4) \
+ int __a4tmp = (int) (a4); \
+ LOAD_ARGS_3 (a1, a2, a3) \
+ register int __a4 __asm__ ("gr10") = __a4tmp;
+#define ASM_ARGS_4 ASM_ARGS_3, "r" (__a4)
+#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \
+ int __v1tmp = (int) (a5); \
+ LOAD_ARGS_4 (a1, a2, a3, a4) \
+ register int __v1 __asm__ ("gr11") = __v1tmp;
+#define ASM_ARGS_5 ASM_ARGS_4, "r" (__v1)
+#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \
+ int __v2tmp = (int) (a6); \
+ LOAD_ARGS_5 (a1, a2, a3, a4, a5) \
+ register int __v2 __asm__ ("gr12") = __v2tmp;
+#define ASM_ARGS_6 ASM_ARGS_5, "r" (__v2)
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 23:28:23 +0000