Update.

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.

3 files changed, 31 insertions, 6 deletions

diff --git a/nptl/sysdeps/i386/tls.h b/nptl/sysdeps/i386/tls.h
index 984094c00e..4f8ddb2d28 100644
--- a/nptl/sysdeps/i386/tls.h
+++ b/nptl/sysdeps/i386/tls.h
@@ -42,9 +42,9 @@ typedef struct
 			   thread descriptor used by libpthread.  */
   dtv_t *dtv;
   void *self;		/* Pointer to the thread descriptor.  */
-  list_t list;
   int multiple_threads;
   uintptr_t sysinfo;
+  list_t list;
 } tcbhead_t;
 #endif
 
@@ -62,11 +62,11 @@ typedef struct
 #define STACK_ALIGN	16
 
 /* Offset of the MULTIPLE_THREADS element in tcbhead_t.  */
-#define MULTIPLE_THREADS_OFFSET 20
+#define MULTIPLE_THREADS_OFFSET 12
 
 #ifdef NEED_DL_SYSINFO
 /* Offset of the SYSINFO element in tcbhead_t.  */
-# define SYSINFO_OFFSET 24
+# define SYSINFO_OFFSET 16
 #endif
 
 
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h b/nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h
index 0eb5f32ac3..5e59962a48 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h
@@ -1,4 +1,4 @@
-/* System-specific settings for dynamic linker code.  Generic version.
+/* System-specific settings for dynamic linker code.  IA-32 version.
    Copyright (C) 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -42,4 +42,28 @@
 
 #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.
+   sysenter/syscall is not useful on i386 through i586, but the dynamic
+   linker and dl code in libc.a has to be able to load i686 compiled
+   libraries.  */
+#define NEED_DL_SYSINFO	1
+#undef USE_DL_SYSINFO
+
+#if defined NEED_DL_SYSINFO && !defined __ASSEMBLER__
+extern void _dl_sysinfo_int80 (void) attribute_hidden;
+# define DL_SYSINFO_DEFAULT (uintptr_t) _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
index f0d4ac7a88..d7328fe219 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h
@@ -1,4 +1,4 @@
-/* System-specific settings for dynamic linker code.  Generic version.
+/* System-specific settings for dynamic linker code.  IA-32 version.
    Copyright (C) 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -49,10 +49,11 @@
    find the code the kernel passes an AT_SYSINFO value in the
    auxiliary vector to the application.  */
 #define NEED_DL_SYSINFO	1
+#define USE_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_DEFAULT (uintptr_t) _dl_sysinfo_int80
 # define DL_SYSINFO_IMPLEMENTATION \
   asm (".type _dl_sysinfo_int80,@function\n\t"				      \
        ".hidden _dl_sysinfo_int80\n"					      \