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authorUlrich Drepper <drepper@redhat.com>2003-01-08 00:22:00 +0000
committerUlrich Drepper <drepper@redhat.com>2003-01-08 00:22:00 +0000
commitb5facfdac0a9a10f9b0b145d6e3b1348a751f2ff (patch)
treeba1c715765882bf6dad329e73ee45d99c152422e /sysdeps/unix/sysv/linux
parente9c7764ec9fe328dfac0c01a7f609d6a2a9bac00 (diff)
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Update.
2003-01-06 Philip Blundell <philb@gnu.org> * sysdeps/unix/arm/sysdep.S (syscall_error): Optimise a little. [__LIBC_REENTRANT]: Unify PIC and non-PIC cases. * sysdeps/unix/sysv/linux/arm/sysdep.h (PSEUDO): Remove .type directive. (PSEUDO_RET): Use SYSCALL_ERROR in place of __syscall_error. (SYSCALL_ERROR): New. (SYSCALL_ERROR_HANDLER) [NOT_IN_libc]: Provide local copy of error handling code. (INTERNAL_SYSCALL): Define. (INLINE_SYSCALL): Use it. (INTERNAL_SYSCALL_ERROR_P, INTERNAL_SYSCALL_ERRNO): Define. * sysdeps/unix/sysv/linux/arm/socket.S (__socket): Use SYSCALL_ERROR in place of __syscall_error. 2003-01-07 Jakub Jelinek <jakub@redhat.com> * sysdeps/ia64/bits/byteswap.h [__GNUC__ >= 2] (__bswap_16, __bswap_32, __bswap_64): Put x into temporary variable to avoid warnings. [!__GNUC__] (__bswap_16, __bswap_32, __bswap_64): Change into static (inline) functions. * sysdeps/s390/bits/byteswap.h [__GNUC__ >= 2] (__bswap_16, __bswap_32, __bswap_64): Put x into temporary variable to avoid warnings. [!__GNUC__] (__bswap_16, __bswap_32, __bswap_64): Change into static (inline) functions. * sysdeps/i386/bits/byteswap.h [!__GNUC__] (__bswap_16, __bswap_32): Likewise. 2003-01-07 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/alpha/adjtime.c (ntp_adjtime): New weak alias.
Diffstat (limited to 'sysdeps/unix/sysv/linux')
-rw-r--r--sysdeps/unix/sysv/linux/alpha/adjtime.c3
-rw-r--r--sysdeps/unix/sysv/linux/arm/socket.S2
-rw-r--r--sysdeps/unix/sysv/linux/arm/sysdep.h43
3 files changed, 37 insertions, 11 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/adjtime.c b/sysdeps/unix/sysv/linux/alpha/adjtime.c
index 2bed884ae4..34df942257 100644
--- a/sysdeps/unix/sysv/linux/alpha/adjtime.c
+++ b/sysdeps/unix/sysv/linux/alpha/adjtime.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 2000, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000, 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -191,5 +191,6 @@ __adjtimex_tv64 (struct timex *tx)
strong_alias (__adjtimex_tv64, __adjtimex_internal);
strong_alias (__adjtimex_tv64, __adjtimex_tv64p);
+weak_alias (__adjtimex_tv64, ntp_adjtime);
versioned_symbol (libc, __adjtimex_tv64, __adjtimex, GLIBC_2_1);
versioned_symbol (libc, __adjtimex_tv64p, adjtimex, GLIBC_2_1);
diff --git a/sysdeps/unix/sysv/linux/arm/socket.S b/sysdeps/unix/sysv/linux/arm/socket.S
index 2672de7b2c..f4ccc5465d 100644
--- a/sysdeps/unix/sysv/linux/arm/socket.S
+++ b/sysdeps/unix/sysv/linux/arm/socket.S
@@ -79,7 +79,7 @@ ENTRY (__socket)
/* r0 is < 0 if there was an error. */
cmn r0, $124
RETINSTR(movcc, pc, r14)
- b PLTJMP(syscall_error)
+ b PLTJMP(SYSCALL_ERROR)
PSEUDO_END (__socket)
diff --git a/sysdeps/unix/sysv/linux/arm/sysdep.h b/sysdeps/unix/sysv/linux/arm/sysdep.h
index cdb1d8ed3b..e7caaa1480 100644
--- a/sysdeps/unix/sysv/linux/arm/sysdep.h
+++ b/sysdeps/unix/sysv/linux/arm/sysdep.h
@@ -49,14 +49,13 @@
#undef PSEUDO
#define PSEUDO(name, syscall_name, args) \
.text; \
- .type syscall_error,%function; \
ENTRY (name); \
DO_CALL (syscall_name, args); \
cmn r0, $4096;
#define PSEUDO_RET \
RETINSTR(movcc, pc, lr); \
- b PLTJMP(__syscall_error)
+ b PLTJMP(SYSCALL_ERROR)
#undef ret
#define ret PSEUDO_RET
@@ -65,7 +64,22 @@
SYSCALL_ERROR_HANDLER \
END (name)
-#define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
+#if NOT_IN_libc
+# define SYSCALL_ERROR __local_syscall_error
+# define SYSCALL_ERROR_HANDLER \
+__local_syscall_error: \
+ str lr, [sp, #-4]!; \
+ str r0, [sp, #-4]!; \
+ bl PLTJMP(C_SYMBOL_NAME(__errno_location)); \
+ ldr r1, [sp], #4; \
+ rsb r1, r1, #0; \
+ str r1, [r0]; \
+ mvn r0, #0; \
+ ldr pc, [sp], #4;
+#else
+# define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
+# define SYSCALL_ERROR __syscall_error
+#endif
/* Linux takes system call args in registers:
syscall number in the SWI instruction
@@ -123,7 +137,17 @@
/* Define a macro which expands into the inline wrapper code for a system
call. */
#undef INLINE_SYSCALL
-#define INLINE_SYSCALL(name, nr, args...) \
+#define INLINE_SYSCALL(name, nr, args...) \
+ ({ unsigned int _sys_result = INTERNAL_SYSCALL (name, nr, args); \
+ if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_sys_result), 0)) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (_sys_result)); \
+ _sys_result = (unsigned int) -1; \
+ } \
+ (int) _sys_result; })
+
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, nr, args...) \
({ unsigned int _sys_result; \
{ \
register int _a1 asm ("a1"); \
@@ -134,13 +158,14 @@
: "a1", "memory"); \
_sys_result = _a1; \
} \
- if (_sys_result >= (unsigned int) -4095) \
- { \
- __set_errno (-_sys_result); \
- _sys_result = (unsigned int) -1; \
- } \
(int) _sys_result; })
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val) ((unsigned int) (val) >= 0xfffff001u)
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val) (-(val))
+
#define LOAD_ARGS_0()
#define ASM_ARGS_0
#define LOAD_ARGS_1(a1) \