2007-02-09 Paolo Bonzini <bonzini@gnu.org>
* Makefile.def: Sync with GCC. * Makefile.tpl: Sync with GCC. * Makefile.in: Regenerate. * configure: Regenerate. * config/acx.m4: Sync with GCC. * config/depstand.m4: Sync with GCC. * config/tls.m4: Sync with GCC.
This commit is contained in:
@@ -3,9 +3,27 @@
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* acx.m4 (ACX_CHECK_INSTALLED_TARGET_TOOL): Avoid AC_PATH_PROG
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with an empty path.
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2007-02-05 Dave Brolley <brolley@redhat.com>
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2007-02-07 Bruno Haible <bruno@clisp.org>
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* mt-mep: New.
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PR libgomp/28468
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* config/tls.m4 (GCC_CHECK_TLS): Also check whether the libc supports
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TLS via __thread.
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2007-01-31 Daniel Franke <franke.daniel@gmail.com>
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PR libgomp/30546
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* acx.m4 (ACX_PROG_CHECK_VER): Locate a program and check that its
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version is acceptable.
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2007-01-27 Paolo Bonzini <bonzini@gnu.org>
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* depstand.m4 (ZW_CREATE_DEPDIR): Use mkinstalldirs to make
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directory.
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2007-01-23 Richard Guenther <rguenther@suse.de>
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PR bootstrap/30541
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* config/acx.m4 (ACX_PROG_GNAT): Check for gnatmake.
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2007-01-14 H.J. Lu <hongjiu.lu@intel.com>
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@@ -330,11 +330,12 @@ ac_c_preproc_warn_flag=yes])# AC_PROG_CPP_WERROR
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# understands Ada. We use the user's CC setting, already found.
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#
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# Sets the shell variable have_gnat to yes or no as appropriate, and
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# substitutes GNATBIND.
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# substitutes GNATBIND and GNATMAKE.
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AC_DEFUN([ACX_PROG_GNAT],
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[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
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AC_REQUIRE([AC_PROG_CC])
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AC_CHECK_TOOL(GNATBIND, gnatbind, no)
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AC_CHECK_TOOL(GNATMAKE, gnatmake, no)
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AC_CACHE_CHECK([whether compiler driver understands Ada],
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acx_cv_cc_gcc_supports_ada,
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[cat >conftest.adb <<EOF
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@@ -355,7 +356,7 @@ if test x"$errors" = x && test -f conftest.$ac_objext; then
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fi
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rm -f conftest.*])
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if test x$GNATBIND != xno && test x$acx_cv_cc_gcc_supports_ada != xno; then
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if test x$GNATBIND != xno && test x$GNATMAKE != xno && test x$acx_cv_cc_gcc_supports_ada != xno; then
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have_gnat=yes
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else
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have_gnat=no
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@@ -490,3 +491,34 @@ else
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fi
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fi
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AC_SUBST($2)])
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dnl Locate a program and check that its version is acceptable.
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dnl ACX_PROG_CHECK_VER(var, name, version-switch,
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dnl version-extract-regexp, version-glob)
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AC_DEFUN([ACX_CHECK_PROG_VER],[
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AC_CHECK_PROG([$1], [$2], [$2])
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if test -n "[$]$1"; then
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# Found it, now check the version.
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AC_CACHE_CHECK([for modern $2],
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[gcc_cv_prog_$2_modern],
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[ac_prog_version=`eval [$]$1 $3 2>&1 |
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sed -n 's/^.*patsubst([[$4]],/,\/).*$/\1/p'`
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[case $ac_prog_version in
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'') gcc_cv_prog_$2_modern=no;;
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$5) gcc_cv_prog_$2_modern=yes;;
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*) gcc_cv_prog_$2_modern=no;;
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esac]
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if test $gcc_cv_prog_$2_modern = no; then
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$1="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing $2"
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fi
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])
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else
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gcc_cv_prog_$2_modern=no
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fi
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if test $gcc_cv_prog_$2_modern = no; then
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$1="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing $2"
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fi
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])
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@@ -1,6 +1,6 @@
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## -*- Autoconf -*-
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# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
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# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
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# Free Software Foundation, Inc.
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#
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# This file is free software; the Free Software Foundation
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@@ -132,5 +132,6 @@ AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
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# As AM_SET_DEPDIR, but also create the directory at config.status time.
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AC_DEFUN([ZW_CREATE_DEPDIR],
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[AC_REQUIRE([AM_SET_DEPDIR])dnl
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AC_CONFIG_COMMANDS([depdir], [mkdir $DEPDIR], [DEPDIR=$DEPDIR])
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AC_CONFIG_COMMANDS([depdir], [$SHELL $ac_aux_dir/mkinstalldirs $DEPDIR],
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[ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR])
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])
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@@ -7,16 +7,67 @@ AC_DEFUN([GCC_CHECK_TLS], [
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[dnl If the test case passed with dynamic linking, try again with
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dnl static linking, but only if static linking is supported (not
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dnl on Solaris 10). This fails with some older Red Hat releases.
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save_LDFLAGS="$LDFLAGS"
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chktls_save_LDFLAGS="$LDFLAGS"
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LDFLAGS="-static $LDFLAGS"
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AC_LINK_IFELSE([int main() { return 0; }],
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AC_RUN_IFELSE([__thread int a; int b; int main() { return a = b; }],
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[have_tls=yes], [have_tls=no],[]),
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[have_tls=yes])
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LDFLAGS="$save_LDFLAGS"],
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LDFLAGS="$chktls_save_LDFLAGS"
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if test $have_tls = yes; then
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dnl So far, the binutils and the compiler support TLS.
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dnl Also check whether the libc supports TLS, i.e. whether a variable
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dnl with __thread linkage has a different address in different threads.
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dnl First, find the thread_CFLAGS necessary for linking a program that
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dnl calls pthread_create.
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chktls_save_CFLAGS="$CFLAGS"
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thread_CFLAGS=failed
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for flag in '' '-pthread' '-lpthread'; do
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CFLAGS="$flag $chktls_save_CFLAGS"
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[#include <pthread.h>
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void *g(void *d) { return NULL; }],
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[pthread_t t; pthread_create(&t,NULL,g,NULL);])],
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[thread_CFLAGS="$flag"])
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if test "X$thread_CFLAGS" != Xfailed; then
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break
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fi
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done
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CFLAGS="$chktls_save_CFLAGS"
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if test "X$thread_CFLAGS" != Xfailed; then
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CFLAGS="$thread_CFLAGS $chktls_save_CFLAGS"
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AC_RUN_IFELSE(
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[AC_LANG_PROGRAM(
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[#include <pthread.h>
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__thread int a;
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static int *a_in_other_thread;
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static void *
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thread_func (void *arg)
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{
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a_in_other_thread = &a;
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return (void *)0;
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}],
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[pthread_t thread;
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void *thread_retval;
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int *a_in_main_thread;
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if (pthread_create (&thread, (pthread_attr_t *)0,
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thread_func, (void *)0))
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return 0;
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a_in_main_thread = &a;
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if (pthread_join (thread, &thread_retval))
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return 0;
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return (a_in_other_thread == a_in_main_thread);])],
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[have_tls=yes], [have_tls=no], [])
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CFLAGS="$chktls_save_CFLAGS"
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fi
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fi],
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[have_tls=no],
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[AC_LINK_IFELSE([__thread int a; int b; int main() { return a = b; }],
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[have_tls=yes], [have_tls=no])]
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[dnl This is the cross-compiling case. Assume libc supports TLS if the
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dnl binutils and the compiler do.
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AC_LINK_IFELSE([__thread int a; int b; int main() { return a = b; }],
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[have_tls=yes], [have_tls=no])
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]
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)])
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if test "$enable_tls $have_tls" = "yes yes"; then
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AC_DEFINE(HAVE_TLS, 1,
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