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* sysdeps/unix/sysv/linux/i386/_exit.S: Use ENTER_KERNEL instead of
	int $0x80.
	* sysdeps/unix/sysv/linux/i386/getcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/setcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/i386/swapcontext.S: Likewise.
This commit is contained in:
Ulrich Drepper
2002-12-20 07:20:48 +00:00
parent 097eca29e8
commit 057c823fbe
4 changed files with 75 additions and 22 deletions
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6
ChangeLog
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@ -1,5 +1,11 @@
2002-12-19 Ulrich Drepper <drepper@redhat.com> 2002-12-19 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/_exit.S: Use ENTER_KERNEL instead of
int $0x80.
* sysdeps/unix/sysv/linux/i386/getcontext.S: Likewise.
* sysdeps/unix/sysv/linux/i386/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/i386/swapcontext.S: Likewise.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Add support to use AT_SYSINFO * sysdeps/unix/sysv/linux/i386/sysdep.h: Add support to use AT_SYSINFO
information for system calls. information for system calls.

4
nptl/ChangeLog
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@ -1,5 +1,9 @@
2002-12-19 Ulrich Drepper <drepper@redhat.com> 2002-12-19 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/dl-sysdep.h: Don't define
NEED_DL_SYSINFO since no processor < i686 had the sysenter opcode.
* sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h: New file.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Use ENTER_KERNEL instead * sysdeps/unix/sysv/linux/i386/pthread_once.S: Use ENTER_KERNEL instead
of int $0x80. of int $0x80.
* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Likewise. * sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Likewise.

22
nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h
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@ -41,25 +41,3 @@
of weak definitions in ld.so. See rtld.c. */ of weak definitions in ld.so. See rtld.c. */
#define RTLD_CORRECT_DYNAMIC_WEAK 1 #define RTLD_CORRECT_DYNAMIC_WEAK 1
/* Traditionally system calls have been made using int $0x80. A
second method was introduced which, if possible, will use the
sysenter/syscall instructions. To signal the presence and where to
find the code the kernel passes an AT_SYSINFO value in the
auxiliary vector to the application. */
#define NEED_DL_SYSINFO 1
#if defined NEED_DL_SYSINFO && !defined __ASSEMBLER__
extern void _dl_sysinfo_int80 (void) attribute_hidden;
# define DL_SYSINFO_DEFAULT _dl_sysinfo_int80
# define DL_SYSINFO_IMPLEMENTATION \
asm (".type _dl_sysinfo_int80,@function\n\t" \
".hidden _dl_sysinfo_int80\n" \
"_dl_sysinfo_int80:\n\t" \
"int $0x80;\n\t" \
"ret;\n\t" \
".size _dl_sysinfo_int80,.-_dl_sysinfo_int80");
#endif
#endif /* dl-sysdep.h */

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nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h Normal file
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/* System-specific settings for dynamic linker code. Generic version.
Copyright (C) 2002 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
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _DL_SYSDEP_H
#define _DL_SYSDEP_H 1
/* This macro must be defined to either 0 or 1.
If 1, then an errno global variable hidden in ld.so will work right with
all the errno-using libc code compiled for ld.so, and there is never a
need to share the errno location with libc. This is appropriate only if
all the libc functions that ld.so uses are called without PLT and always
get the versions linked into ld.so rather than the libc ones. */
#ifdef IS_IN_rtld
# define RTLD_PRIVATE_ERRNO 1
#else
# define RTLD_PRIVATE_ERRNO 0
#endif
/* This configuration has in libc.so cancellable functions and other
functions which have to behave differently if the application uses
threads. It is not necessary that the thread library's definitions
are used. Therefore we can finally enabled the correct handling
of weak definitions in ld.so. See rtld.c. */
#define RTLD_CORRECT_DYNAMIC_WEAK 1
/* Traditionally system calls have been made using int $0x80. A
second method was introduced which, if possible, will use the
sysenter/syscall instructions. To signal the presence and where to
find the code the kernel passes an AT_SYSINFO value in the
auxiliary vector to the application. */
#define NEED_DL_SYSINFO 1
#if defined NEED_DL_SYSINFO && !defined __ASSEMBLER__
extern void _dl_sysinfo_int80 (void) attribute_hidden;
# define DL_SYSINFO_DEFAULT _dl_sysinfo_int80
# define DL_SYSINFO_IMPLEMENTATION \
asm (".type _dl_sysinfo_int80,@function\n\t" \
".hidden _dl_sysinfo_int80\n" \
"_dl_sysinfo_int80:\n\t" \
"int $0x80;\n\t" \
"ret;\n\t" \
".size _dl_sysinfo_int80,.-_dl_sysinfo_int80");
#endif
#endif /* dl-sysdep.h */