From c1ead4ee2dd8bafe738c239c80aef4b335c2d9c0 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Thu, 19 Jan 2006 10:25:27 +0000
Subject: update syscall macros so both ldso and libc can use them
---
libc/sysdeps/linux/sparc/bits/syscalls.h | 236 +++++++++++++------------------
1 file changed, 99 insertions(+), 137 deletions(-)
(limited to 'libc')
diff --git a/libc/sysdeps/linux/sparc/bits/syscalls.h b/libc/sysdeps/linux/sparc/bits/syscalls.h
index ddd8e5f6b..6399a5c0a 100644
--- a/libc/sysdeps/linux/sparc/bits/syscalls.h
+++ b/libc/sysdeps/linux/sparc/bits/syscalls.h
@@ -4,6 +4,10 @@
# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
#endif
+#define __UCLIBC_MMAP_HAS_6_ARGS__
+
+#include <bits/wordsize.h>
+
/* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel
* header files. It also defines the traditional `SYS_<name>' macros for older
* programs. */
@@ -13,47 +17,106 @@
# define __set_errno(val) (*__errno_location ()) = (val)
#endif
-/*
- macros taken from glibc-2.3/sysdeps/unix/sysv/linux/sparc/sysdep.h
- Copyright (C) 2000, 2002 Free Software Foundation, Inc.
- Contributed by Jakub Jelinek <jakub@redhat.com>, 2000.
-*/
-
#ifndef __ASSEMBLER__
+#undef __SYSCALL_STRING
+#if __WORDSIZE == 32
+# define __SYSCALL_STRING \
+ "t 0x10\n\t" \
+ "bcc 1f\n\t" \
+ "mov %%o0, %0\n\t" \
+ "sub %%g0, %%o0, %0\n\t" \
+ "1:\n\t"
+# define __SYSCALL_RES_CHECK (__res < -255 || __res >= 0)
+#elif __WORDSIZE == 64
+# define __SYSCALL_STRING \
+ "t 0x6d\n\t" \
+ "sub %%g0, %%o0, %0\n\t" \
+ "movcc %%xcc, %%o0, %0\n\t"
+# define __SYSCALL_RES_CHECK (__res >= 0)
+#else
+# error unknown __WORDSIZE
+#endif
+
+#define __SYSCALL_RETURN(type) \
+ if (__SYSCALL_RES_CHECK) \
+ return (type) __res; \
+ __set_errno (-__res); \
+ return (type) -1;
+
#undef _syscall0
#define _syscall0(type,name) \
type name(void) \
{ \
-return (type) (INLINE_SYSCALL(name, 0)); \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##name; \
+__asm__ __volatile__ (__SYSCALL_STRING \
+ : "=r" (__res)\
+ : "r" (__g1) \
+ : "o0", "cc"); \
+__SYSCALL_RETURN(type) \
}
#undef _syscall1
#define _syscall1(type,name,type1,arg1) \
type name(type1 arg1) \
{ \
-return (type) (INLINE_SYSCALL(name, 1, arg1)); \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##name; \
+register long __o0 __asm__ ("o0") = (long)(arg1); \
+__asm__ __volatile__ (__SYSCALL_STRING \
+ : "=r" (__res), "=&r" (__o0) \
+ : "1" (__o0), "r" (__g1) \
+ : "cc"); \
+__SYSCALL_RETURN(type) \
}
#undef _syscall2
#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1,type2 arg2) \
{ \
-return (type) (INLINE_SYSCALL(name, 2, arg1, arg2)); \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##name; \
+register long __o0 __asm__ ("o0") = (long)(arg1); \
+register long __o1 __asm__ ("o1") = (long)(arg2); \
+__asm__ __volatile__ (__SYSCALL_STRING \
+ : "=r" (__res), "=&r" (__o0) \
+ : "1" (__o0), "r" (__o1), "r" (__g1) \
+ : "cc"); \
+__SYSCALL_RETURN(type) \
}
#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)); \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##name; \
+register long __o0 __asm__ ("o0") = (long)(arg1); \
+register long __o1 __asm__ ("o1") = (long)(arg2); \
+register long __o2 __asm__ ("o2") = (long)(arg3); \
+__asm__ __volatile__ (__SYSCALL_STRING \
+ : "=r" (__res), "=&r" (__o0) \
+ : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__g1) \
+ : "cc"); \
+__SYSCALL_RETURN(type) \
}
#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)); \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##name; \
+register long __o0 __asm__ ("o0") = (long)(arg1); \
+register long __o1 __asm__ ("o1") = (long)(arg2); \
+register long __o2 __asm__ ("o2") = (long)(arg3); \
+register long __o3 __asm__ ("o3") = (long)(arg4); \
+__asm__ __volatile__ (__SYSCALL_STRING \
+ : "=r" (__res), "=&r" (__o0) \
+ : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__o3), "r" (__g1) \
+ : "cc"); \
+__SYSCALL_RETURN(type) \
}
#undef _syscall5
@@ -61,7 +124,18 @@ return (type) (INLINE_SYSCALL(name, 4, arg1, arg2, arg3, 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)); \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##name; \
+register long __o0 __asm__ ("o0") = (long)(arg1); \
+register long __o1 __asm__ ("o1") = (long)(arg2); \
+register long __o2 __asm__ ("o2") = (long)(arg3); \
+register long __o3 __asm__ ("o3") = (long)(arg4); \
+register long __o4 __asm__ ("o4") = (long)(arg5); \
+__asm__ __volatile__ (__SYSCALL_STRING \
+ : "=r" (__res), "=&r" (__o0) \
+ : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__o3), "r" (__o4), "r" (__g1) \
+ : "cc"); \
+__SYSCALL_RETURN(type) \
}
#undef _syscall6
@@ -69,132 +143,20 @@ return (type) (INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5)); \
type5,arg5,type6,arg6) \
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, type6 arg6) \
{ \
-return (type) (INLINE_SYSCALL(name, 6, arg1, arg2, arg3, arg4, arg5, arg6)); \
+long __res; \
+register long __g1 __asm__ ("g1") = __NR_##name; \
+register long __o0 __asm__ ("o0") = (long)(arg1); \
+register long __o1 __asm__ ("o1") = (long)(arg2); \
+register long __o2 __asm__ ("o2") = (long)(arg3); \
+register long __o3 __asm__ ("o3") = (long)(arg4); \
+register long __o4 __asm__ ("o4") = (long)(arg5); \
+register long __o5 __asm__ ("o5") = (long)(arg6); \
+__asm__ __volatile__ (__SYSCALL_STRING \
+ : "=r" (__res), "=&r" (__o0) \
+ : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__o3), "r" (__o4), "r" (__o5), "r" (__g1) \
+ : "cc"); \
+__SYSCALL_RETURN(type) \
}
-#undef _syscall7
-#define _syscall7(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
- type5,arg5,type6,arg6,type7,arg7) \
-type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, type6 arg6,type7 arg7) \
-{ \
-return (type) (INLINE_SYSCALL(name, 7, arg1, arg2, arg3, arg4, arg5, arg6, arg7)); \
-}
-
-#define __SYSCALL_STRING \
- "ta 0x10;" \
- "bcs 2f;" \
- " nop;" \
- "1:" \
- ".subsection 2;" \
- "2:" \
- "save %%sp, -192, %%sp;" \
- "call __errno_location;" \
- " nop;" \
- "st %%i0,[%%o0];" \
- "ba 1b;" \
- " restore %%g0, -1, %%o0;" \
- ".previous;"
-
-#define __SYSCALL_CLOBBERS "g2", "g3", "g4", "g5", "g7", \
- "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
- "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
- "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \
- "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \
- "cc", "memory"
-
-#undef INLINE_SYSCALL
-#define INLINE_SYSCALL(name, nr, args...) _INLINE_SYSCALL##nr(name, args)
-
-#define _INLINE_SYSCALL0(name,dummy...) \
-({ \
- register long __o0 __asm__ ("o0"); \
- register long __g1 __asm__ ("g1") = __NR_##name; \
- __asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
- "0" (__g1) : \
- __SYSCALL_CLOBBERS); \
- __o0; \
-})
-
-#define _INLINE_SYSCALL1(name,arg1) \
-({ \
- register long __o0 __asm__ ("o0") = (long)(arg1); \
- register long __g1 __asm__ ("g1") = __NR_##name; \
- __asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
- "0" (__g1), "1" (__o0) : \
- __SYSCALL_CLOBBERS); \
- __o0; \
-})
-
-#define _INLINE_SYSCALL2(name,arg1,arg2) \
-({ \
- register long __o0 __asm__ ("o0") = (long)(arg1); \
- register long __o1 __asm__ ("o1") = (long)(arg2); \
- register long __g1 __asm__ ("g1") = __NR_##name; \
- __asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
- "0" (__g1), "1" (__o0), "r" (__o1) : \
- __SYSCALL_CLOBBERS); \
- __o0; \
-})
-
-#define _INLINE_SYSCALL3(name,arg1,arg2,arg3) \
-({ \
- register long __o0 __asm__ ("o0") = (long)(arg1); \
- register long __o1 __asm__ ("o1") = (long)(arg2); \
- register long __o2 __asm__ ("o2") = (long)(arg3); \
- register long __g1 __asm__ ("g1") = __NR_##name; \
- __asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
- "0" (__g1), "1" (__o0), "r" (__o1), \
- "r" (__o2) : \
- __SYSCALL_CLOBBERS); \
- __o0; \
-})
-
-#define _INLINE_SYSCALL4(name,arg1,arg2,arg3,arg4) \
-({ \
- register long __o0 __asm__ ("o0") = (long)(arg1); \
- register long __o1 __asm__ ("o1") = (long)(arg2); \
- register long __o2 __asm__ ("o2") = (long)(arg3); \
- register long __o3 __asm__ ("o3") = (long)(arg4); \
- register long __g1 __asm__ ("g1") = __NR_##name; \
- __asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
- "0" (__g1), "1" (__o0), "r" (__o1), \
- "r" (__o2), "r" (__o3) : \
- __SYSCALL_CLOBBERS); \
- __o0; \
-})
-
-#define _INLINE_SYSCALL5(name,arg1,arg2,arg3,arg4,arg5) \
-({ \
- register long __o0 __asm__ ("o0") = (long)(arg1); \
- register long __o1 __asm__ ("o1") = (long)(arg2); \
- register long __o2 __asm__ ("o2") = (long)(arg3); \
- register long __o3 __asm__ ("o3") = (long)(arg4); \
- register long __o4 __asm__ ("o4") = (long)(arg5); \
- register long __g1 __asm__ ("g1") = __NR_##name; \
- __asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
- "0" (__g1), "1" (__o0), "r" (__o1), \
- "r" (__o2), "r" (__o3), "r" (__o4) : \
- __SYSCALL_CLOBBERS); \
- __o0; \
-})
-
-#define _INLINE_SYSCALL6(name,arg1,arg2,arg3,arg4,arg5,arg6) \
-({ \
- register long __o0 __asm__ ("o0") = (long)(arg1); \
- register long __o1 __asm__ ("o1") = (long)(arg2); \
- register long __o2 __asm__ ("o2") = (long)(arg3); \
- register long __o3 __asm__ ("o3") = (long)(arg4); \
- register long __o4 __asm__ ("o4") = (long)(arg5); \
- register long __o5 __asm__ ("o5") = (long)(arg6); \
- register long __g1 __asm__ ("g1") = __NR_##name; \
- __asm __volatile (__SYSCALL_STRING : "=r" (__g1), "=r" (__o0) : \
- "0" (__g1), "1" (__o0), "r" (__o1), \
- "r" (__o2), "r" (__o3), "r" (__o4), \
- "r" (__o5) : \
- __SYSCALL_CLOBBERS); \
- __o0; \
-})
-
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
-
--
cgit v1.2.3