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authorUlrich Drepper <drepper@redhat.com>2002-12-20 07:20:48 +0000
committerUlrich Drepper <drepper@redhat.com>2002-12-20 07:20:48 +0000
commit057c823fbef95bf0ddb2a33c109b82488390ecec (patch)
treee9b76159321c42f19e44737547353741fd0e6ec3 /nptl
parent097eca29e8f769673b5ed1b335542719280a556e (diff)
downloadglibc-057c823fbef95bf0ddb2a33c109b82488390ecec.tar.gz
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Update.
	* 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.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/ChangeLog4
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h22
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h65
3 files changed, 69 insertions, 22 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 4e1ecf659d..ed7de44425 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,5 +1,9 @@
 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
 	of int $0x80.
 	* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Likewise.
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h b/nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h
index f0d4ac7a88..d22db81eb6 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h
@@ -41,25 +41,3 @@
    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 */
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h b/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h
new file mode 100644
index 0000000000..f0d4ac7a88
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h
@@ -0,0 +1,65 @@
+/* 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 */