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2002-12-28 Ulrich Drepper <drepper@redhat.com> * descr.h (struct pthread): Move header.data.list to the back of the struct. * sysdeps/i386/tls.h (tcbhead_t): Move list to the back of the struct. (MULTIPLE_THREADS_OFFSET): Adjust offset. (SYSINFO_OFFSEET): Likewise. 2002-12-27 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h (USE_DL_SYSINFO): Define. (DL_SYSINFO_DEFAULT): Cast to uintptr_t to avoid warnings. * sysdeps/unix/sysv/linux/i386/dl-sysdep.h (NEED_DL_SYSINFO, DL_SYSINFO_DEFAULT, DL_SYSINFO_IMPLEMENTATION): Define. (USE_DL_SYSINFO): Undef. 2002-12-22 Jakub Jelinek <jakub@redhat.com> * Makefile (tests-reverse): Use $(objpfx)../libc.so instead of $(common-objpfx)libc.so. * tst-cancel4.c (tf_write, tf_writev): Increase buf sizes so that it is bigger than pipe buffer size even on arches with bigger page size. (tf_usleep): Cast usleep argument to useconds_t to avoid warnings.
70 lines
2.8 KiB
C
70 lines
2.8 KiB
C
/* System-specific settings for dynamic linker code. IA-32 version.
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _DL_SYSDEP_H
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#define _DL_SYSDEP_H 1
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/* This macro must be defined to either 0 or 1.
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If 1, then an errno global variable hidden in ld.so will work right with
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all the errno-using libc code compiled for ld.so, and there is never a
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need to share the errno location with libc. This is appropriate only if
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all the libc functions that ld.so uses are called without PLT and always
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get the versions linked into ld.so rather than the libc ones. */
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#ifdef IS_IN_rtld
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# define RTLD_PRIVATE_ERRNO 1
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#else
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# define RTLD_PRIVATE_ERRNO 0
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#endif
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/* This configuration has in libc.so cancellable functions and other
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functions which have to behave differently if the application uses
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threads. It is not necessary that the thread library's definitions
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are used. Therefore we can finally enabled the correct handling
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of weak definitions in ld.so. See rtld.c. */
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#define RTLD_CORRECT_DYNAMIC_WEAK 1
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/* Traditionally system calls have been made using int $0x80. A
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second method was introduced which, if possible, will use the
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sysenter/syscall instructions. To signal the presence and where to
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find the code the kernel passes an AT_SYSINFO value in the
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auxiliary vector to the application.
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sysenter/syscall is not useful on i386 through i586, but the dynamic
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linker and dl code in libc.a has to be able to load i686 compiled
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libraries. */
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#define NEED_DL_SYSINFO 1
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#undef USE_DL_SYSINFO
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#if defined NEED_DL_SYSINFO && !defined __ASSEMBLER__
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extern void _dl_sysinfo_int80 (void) attribute_hidden;
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# define DL_SYSINFO_DEFAULT (uintptr_t) _dl_sysinfo_int80
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# define DL_SYSINFO_IMPLEMENTATION \
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asm (".type _dl_sysinfo_int80,@function\n\t" \
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".hidden _dl_sysinfo_int80\n" \
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"_dl_sysinfo_int80:\n\t" \
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"int $0x80;\n\t" \
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"ret;\n\t" \
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".size _dl_sysinfo_int80,.-_dl_sysinfo_int80");
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#endif
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#endif /* dl-sysdep.h */
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