* elf/tls-macros.h (TLS_LD, TLS_GD): Use call insn, not callq.

	* sysdeps/unix/x86_64/sysdep.S [USE_TLS && HAVE___THREAD] [! PIC]:
	Use direct-%fs form of TLS access for errno.

	* sysdeps/unix/sysv/linux/i386/i686/sysdep.h: File removed, since
	the i386 version has all the same asm now.

	* sysdeps/i386/elf/configure.in: Add @GOTNTPOFF and @NTPOFF uses to
	the TLS support check.
	* sysdeps/i386/elf/configure: Regenerated.

	* sysdeps/unix/sysv/linux/i386/sysdep.h [USE_TLS && HAVE___THREAD]
	(SYSCALL_ERROR_HANDLER): Use direct-%gs form of TLS access for errno.

	* sysdeps/unix/i386/sysdep.S (syscall_error)
	[USE_TLS && HAVE___THREAD]: Use TLS access for errno.

5 files changed, 24 insertions, 104 deletions

diff --git a/sysdeps/i386/elf/configure b/sysdeps/i386/elf/configure
index b9e5d7e79e..03f16fc798 100755
--- a/sysdeps/i386/elf/configure
+++ b/sysdeps/i386/elf/configure
@@ -20,8 +20,11 @@ baz:	leal	bar@TLSLDM(%ebx), %eax
 	leal	bar@DTPOFF(%eax), %edx
 	subl	foo@GOTTPOFF(%edx), %eax
 	subl	$bar@TPOFF, %eax
+	movl	foo@GOTNTPOFF(%edx), %ecx
+	movl	%gs:(%ecx), %eax
+	movl	%gs:bar@NTPOFF, %eax
 EOF
-if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:25: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:28: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
   libc_cv_386_tls=yes
 else
   libc_cv_386_tls=no
diff --git a/sysdeps/i386/elf/configure.in b/sysdeps/i386/elf/configure.in
index 3c27d0171f..89a43b04b9 100644
--- a/sysdeps/i386/elf/configure.in
+++ b/sysdeps/i386/elf/configure.in
@@ -18,6 +18,9 @@ baz:	leal	bar@TLSLDM(%ebx), %eax
 	leal	bar@DTPOFF(%eax), %edx
 	subl	foo@GOTTPOFF(%edx), %eax
 	subl	$bar@TPOFF, %eax
+	movl	foo@GOTNTPOFF(%edx), %ecx
+	movl	%gs:(%ecx), %eax
+	movl	%gs:bar@NTPOFF, %eax
 EOF
 dnl
 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
diff --git a/sysdeps/unix/i386/sysdep.S b/sysdeps/unix/i386/sysdep.S
index d1bd102708..294865877f 100644
--- a/sysdeps/unix/i386/sysdep.S
+++ b/sysdeps/unix/i386/sysdep.S
@@ -1,4 +1,5 @@
-/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 2000, 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
@@ -41,7 +42,9 @@ syscall_error:
 notb:
 #endif
 #ifndef	PIC
-# ifndef _LIBC_REENTRANT
+# if USE_TLS && HAVE___THREAD
+	movl %eax, %gs:C_SYMBOL_NAME(errno@NTPOFF)
+# elif !defined _LIBC_REENTRANT
 	movl %eax, C_SYMBOL_NAME(errno)
 # else
 	pushl %eax
@@ -54,7 +57,13 @@ notb:
 #else
 	/* The caller has pushed %ebx and then set it up to
 	   point to the GOT before calling us through the PLT.  */
-# ifndef _LIBC_REENTRANT
+# if USE_TLS && HAVE___THREAD
+	movl C_SYMBOL_NAME(errno@GOTNTPOFF)(%ebx), %ecx
+
+	/* Pop %ebx value saved before jumping here.  */
+	popl %ebx
+	movl %eax, %gs:0(%ecx)
+# elif !defined _LIBC_REENTRANT
 	movl C_SYMBOL_NAME(errno@GOT)(%ebx), %ecx
 
 	/* Pop %ebx value saved before jumping here.  */
diff --git a/sysdeps/unix/sysv/linux/i386/i686/sysdep.h b/sysdeps/unix/sysv/linux/i386/i686/sysdep.h
deleted file mode 100644
index 1cd335ad7b..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i686/sysdep.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/* Copyright (C) 1998, 2000, 2002 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 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 _LINUX_I386_I686_SYSDEP_H
-#define _LINUX_I386_I686_SYSDEP_H 1
-
-/* There is some commonality.  */
-#include <sysdeps/unix/sysv/linux/i386/sysdep.h>
-#include <bp-sym.h>
-#include <bp-asm.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
-
-# undef SETUP_PIC_REG
-# ifndef HAVE_HIDDEN
-#  define SETUP_PIC_REG(reg) \
-  call 1f;								      \
-  .subsection 1;							      \
-1:movl (%esp), %e##reg;							      \
-  ret;									      \
-  .previous
-# else
-#  define SETUP_PIC_REG(reg) \
-  .section .gnu.linkonce.t.__i686.get_pc_thunk.reg,"ax",@progbits;	      \
-  .globl __i686.get_pc_thunk.reg;					      \
-  .hidden __i686.get_pc_thunk.reg;					      \
-  .type __i686.get_pc_thunk.reg,@function;				      \
-__i686.get_pc_thunk.reg:						      \
-  movl (%esp), %e##reg;							      \
-  ret;									      \
-  .previous;								      \
-  call __i686.get_pc_thunk.reg
-# endif
-
-/* Store (- %eax) into errno through the GOT.  */
-# ifdef _LIBC_REENTRANT
-#  if USE_TLS && HAVE___THREAD
-#   define SYSCALL_ERROR_HANDLER					      \
-0:SETUP_PIC_REG (cx);							      \
-  addl $_GLOBAL_OFFSET_TABLE_, %ecx;					      \
-  xorl %edx, %edx;							      \
-  subl %eax, %edx;							      \
-  movl %gs:0, %eax;							      \
-  subl errno@gottpoff(%ecx), %eax;					      \
-  movl %edx, (%eax);							      \
-  orl $-1, %eax;							      \
-  jmp L(pseudo_end);
-#  else
-#   define SYSCALL_ERROR_HANDLER					      \
-0:pushl %ebx;								      \
-  SETUP_PIC_REG(bx);							      \
-  addl $_GLOBAL_OFFSET_TABLE_, %ebx;					      \
-  xorl %edx, %edx;							      \
-  subl %eax, %edx;							      \
-  pushl %edx;								      \
-  PUSH_ERRNO_LOCATION_RETURN;						      \
-  call BP_SYM (__errno_location)@PLT;					      \
-  POP_ERRNO_LOCATION_RETURN;						      \
-  popl %ecx;								      \
-  popl %ebx;								      \
-  movl %ecx, (%eax);							      \
-  orl $-1, %eax;							      \
-  jmp L(pseudo_end);
-/* A quick note: it is assumed that the call to `__errno_location' does
-   not modify the stack!  */
-#  endif
-# else
-#  define SYSCALL_ERROR_HANDLER						      \
-0:SETUP_PIC_REG(cx);							      \
-  addl $_GLOBAL_OFFSET_TABLE_, %ecx;					      \
-  xorl %edx, %edx;							      \
-  subl %eax, %edx;							      \
-  movl errno@GOT(%ecx), %ecx;						      \
-  movl %edx, (%ecx);							      \
-  orl $-1, %eax;							      \
-  jmp L(pseudo_end);
-# endif	/* _LIBC_REENTRANT */
-#endif	/* PIC */
-
-#endif /* linux/i386/i686/sysdep.h */
diff --git a/sysdeps/unix/x86_64/sysdep.S b/sysdeps/unix/x86_64/sysdep.S
index a54c151013..b0580a39ae 100644
--- a/sysdeps/unix/x86_64/sysdep.S
+++ b/sysdeps/unix/x86_64/sysdep.S
@@ -42,8 +42,12 @@ syscall_error:
 notb:
 #endif
 #if USE_TLS && HAVE___THREAD
-	movq C_SYMBOL_NAME(errno)@GOTTPOFF(%rip), %rcx
+# ifdef PIC
+	movq C_SYMBOL_NAME(errno@GOTTPOFF)(%rip), %rcx
 	movl %eax, %fs:0(%rcx)
+# else
+	movl %eax, %fs:C_SYMBOL_NAME(errno@TPOFF)
+# endif
 #elif !defined PIC
 # ifndef _LIBC_REENTRANT
 	movl %eax, C_SYMBOL_NAME(errno)