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authorUlrich Drepper <drepper@redhat.com>1998-04-02 17:42:53 +0000
committerUlrich Drepper <drepper@redhat.com>1998-04-02 17:42:53 +0000
commit63bda0c13abdc73893855c2b57e55eaea5835fc3 (patch)
treec014fde462e03702976efd1e9f26c760fc80bee6 /sysdeps/unix/sysv/linux/i386/i686/sysdep.h
parentd0fc4041fec47665faff6ac1f51d71829f2dc30a (diff)
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Update.
1998-04-02 Ulrich Drepper <drepper@cygnus.com> * stdlib/isomac.c: Use -isystem instead of -I for system include dir. 1998-03-30 08:05 H.J. Lu <hjl@gnu.org> * resolv/res_comp.c (underscorechar): New. (middlechar): Allow '_'. 1998-04-02 Ulrich Drepper <drepper@cygnus.com> * intl/explodename.c (stdlib.h): Include that file only if STDC_HEADERS or _LIBC. (string.h): Include that file only if HAVE_STRING_H or _LIBC. Patch by Philippe De Muyter <phdm@macqel.be>. 1998-04-01 21:08 Zack Weinberg <zack@rabi.phys.columbia.edu> * aclocal.m4 (AC_PROG_CC_LOCAL): Remove superfluous tests. (AC_PROG_CHECK_VER): New macro. * configure.in: Use AC_PROG_CHECK_VER to check versions of gcc, gmake, msgfmt, makeinfo. Remove superfluous tests. 1998-04-02 15:13 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/i386/i686/sysdep.h: New file. * sysdeps/i386/i686/strtok.S: New file * sysdeps/i386/i686/strtok_r.S: New file 1998-04-02 Mark Kettenis <kettenis@phys.uva.nl> * posix/unistd.h: [__USE_FILE_OFFSET64] (lseek): Change return type to __off64_t. * libio/stdio.h [__USE_FILE_OFFSET64] (fseeko): Declare offset parameter as __off64_t instead of __off_t. (ftello): Make alias for ftello64 instead of ftello. Change return type to __off64_t. 1998-04-02 Ulrich Drepper <drepper@cygnus.com> * sysdeps/i386/bits/string.h: Fix various typos. Patch by Horst von Brand <vonbrand@sleipnir.valparaiso.cl>. * sysdeps/unix/sysv/linux/getcwd.c: Use getcwd syscall in Linux 2.1.92. 1998-04-02 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/i386/chown.c: Handle old kernels without lchown syscall correctly. [PR libc/541].
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/i686/sysdep.h')
-rw-r--r--sysdeps/unix/sysv/linux/i386/i686/sysdep.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/i686/sysdep.h b/sysdeps/unix/sysv/linux/i386/i686/sysdep.h
new file mode 100644
index 0000000..001f3fc
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/i686/sysdep.h
@@ -0,0 +1,71 @@
+/* Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper, <drepper@cygnus.com>, 1998.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _LINUX_I386_I686_SYSDEP_H
+#define _LINUX_I386_I686_SYSDEP_H 1
+
+/* There is some commonality. */
+#include <sysdeps/unix/sysv/linux/i386/sysdep.h>
+
+/* We define special versions of the error handler code to match the i686's
+ deep branch prediction mechanism. */
+#ifdef PIC
+# undef SYSCALL_ERROR_HANDLER
+
+/* Store (- %eax) into errno through the GOT. */
+# ifdef _LIBC_REENTRANT
+# define SYSCALL_ERROR_HANDLER \
+ .type syscall_error,@function; \
+0:movl (%esp),%ebx; \
+ ret; \
+syscall_error: \
+ pushl %ebx; \
+ call 0b; \
+ addl $_GLOBAL_OFFSET_TABLE_, %ebx; \
+ xorl %edx, %edx; \
+ subl %eax, %edx; \
+ pushl %edx; \
+ call __errno_location@PLT; \
+ popl %ecx; \
+ popl %ebx; \
+ movl %ecx, (%eax); \
+ movl $-1, %eax; \
+ jmp L(pseudo_end); \
+ .size syscall_error,.-syscall_error;
+/* A quick note: it is assumed that the call to `__errno_location' does
+ not modify the stack! */
+# else
+# define SYSCALL_ERROR_HANDLER \
+ .type syscall_error,@function; \
+0:movl (%esp),%ecx; \
+ ret; \
+syscall_error: \
+ call 0b; \
+ addl $_GLOBAL_OFFSET_TABLE_, %ecx; \
+ xorl %edx, %edx; \
+ subl %eax, %edx; \
+ movl errno@GOT(%ecx), %ecx; \
+ movl %edx, (%ecx); \
+ movl $-1, %eax; \
+ jmp L(pseudo_end); \
+ .size syscall_error,.-syscall_error;
+# endif /* _LIBC_REENTRANT */
+#endif /* PIC */
+
+#endif /* linux/i386/i686/sysdep.h */