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2011-12-07 Magnus Granberg <zorry@gentoo.org>, Anthony G. Basile <basile@opensource.dyc.edu>
* configure Add --enable-esp. Add-fno-stack-protector
to stage1_cflags.
* gcc/configure Add --enable-esp. Check -z now and -z relro.
Define ENABLE_ESP.
Check if we support crtbeginP and define ENABLE_CRTBEGINP.
* libmudflap/configure Add AC_SUBST enable_esp.
--- configure 2010-01-31 13:12:21.000000000 -0500
+++ configure 2010-02-07 14:29:51.000000000 -0500
@@ -707,6 +707,7 @@
CFLAGS
CC
target_subdir
+enable_esp
host_subdir
build_subdir
build_libsubdir
@@ -934,6 +934,11 @@
--enable-FEATURE[=ARG] include FEATURE [ARG=yes]
--enable-gold use gold instead of ld
--enable-libada build libada directory
+ --enable-esp
+ Enable Stack protector, Position independent executable as
+ default if we have suppot for it when compiling
+ and link with -z relro and -z now as default.
+ Linux targets supported i*86, x86_64, powerpc, powerpc64, ia64 and arm
--enable-libssp build libssp directory
--disable-ppl-version-check disable check for PPL version
--disable-cloog-version-check disable check for CLooG version
@@ -2145,6 +2150,25 @@
noconfigdirs="$noconfigdirs gnattools"
fi
+# Check whether --enable-esp was given and target have the support.
+# Check whether --enable-esp or --disable-esp was given.
+if test "${enable_esp+set}" = set; then
+ enableval="$enable_esp"
+
+ case $target in
+ i?86*-*-linux* | x86_64*-*-linux* | powerpc-*-linux* | powerpc64-*-linux* | arm*-*-linux* | ia64-*-linux*)
+ enable_esp=yes
+ ;;
+ *)
+ { { echo "$as_me:$LINENO: error: *** --enable-esp is not supported on this $target target." >&5
+echo "$as_me: error: *** --enable-esp is not supported on this $target target." >&2;}
+ { (exit 1); exit 1; }; }
+ ;;
+ esac
+
+fi;
+
+
# Check whether --enable-libssp was given.
if test "${enable_libssp+set}" = set; then :
enableval=$enable_libssp; ENABLE_LIBSSP=$enableval
@@ -14266,6 +14290,9 @@
*) stage1_cflags="-g -J" ;;
esac ;;
esac
+if test x$enable_esp = xyes; then
+ stage1_cflags="$stage1_cflags -fno-stack-protector"
+fi
# This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
if test "$GCC" = yes -a "$ENABLE_BUILD_WITH_CXX" != yes; then
--- gcc/configure 2010-01-31 10:01:53.000000000 -0500
+++ gcc/configure 2010-02-07 14:29:56.000000000 -0500
@@ -678,6 +678,8 @@
HOST_LIBS
GGC
libgcc_visibility
+enable_esp
+enable_crtbeginP
gcc_cv_readelf
gcc_cv_objdump
ORIGINAL_NM_FOR_TARGET
@@ -24480,6 +24481,50 @@
;;
esac
+echo "$as_me:$LINENO: checking linker -z now support" >&5
+echo $ECHO_N "checking linker -z now support... $ECHO_C" >&6
+if test "${gcc_cv_ld_now+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ gcc_cv_ld_now=no
+if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_now=yes
+ fi
+elif test x$gcc_cv_ld != x; then
+ # Check if linker supports -z now options
+ if $gcc_cv_ld --help 2>/dev/null | grep now > /dev/null; then
+ gcc_cv_ld_now=yes
+ fi
+fi
+
+fi
+echo "$as_me:$LINENO: result: $gcc_cv_ld_now" >&5
+echo "${ECHO_T}$gcc_cv_ld_now" >&6
+
+echo "$as_me:$LINENO: checking linker -z relro support" >&5
+echo $ECHO_N "checking linker -z relro support... $ECHO_C" >&6
+if test "${gcc_cv_ld_relro+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ gcc_cv_ld_relro=no
+if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_relro=yes
+ fi
+elif test x$gcc_cv_ld != x; then
+ # Check if linker supports -z relro and -z norelro options
+ if $gcc_cv_ld --help 2>/dev/null | grep relro > /dev/null; then
+ gcc_cv_ld_relro=yes
+ fi
+fi
+
+fi
+echo "$as_me:$LINENO: result: $gcc_cv_ld_relro" >&5
+echo "${ECHO_T}$gcc_cv_ld_relro" >&6
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking linker --build-id support" >&5
$as_echo_n "checking linker --build-id support... " >&6; }
if test "${gcc_cv_ld_buildid+set}" = set; then :
@@ -24411,6 +23745,74 @@
fi
+if test x$enable_esp = xyes ; then
+case $target in
+ ia64*-*-linux*)
+ if test x$gcc_cv_ld_now = xyes; then
+ enable_esp_ld=yes
+ else
+ enable_esp_ld=no
+ fi
+ ;;
+ *-*-linux*)
+ if test x$gcc_cv_ld_relro = xyes && test x$gcc_cv_ld_now = xyes; then
+ enable_esp_ld=yes
+ else
+ enable_esp_ld=no
+ fi
+ ;;
+ *)
+ enable_esp_ld=no
+ ;;
+ esac
+else
+ enable_espf_ld=no
+fi
+if test x$enable_esp_ld = xyes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define ENABLE_ESP 1
+_ACEOF
+
+fi
+
+if test x$enable_esp = xyes && test x$enable_esp_ld = xno; then
+ { { echo "$as_me:$LINENO: error: *** --enable-esp is not supported. You don't have -z,relro or -z,now support in the linker." >&5
+echo "$as_me: error: *** --enable-esp is not supported. You don't have -z,relro or -z,now support in the linker." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+echo "$as_me:$LINENO: checking for crtbeginP.o support" >&5
+echo $ECHO_N "checking for crtbeginP.o support... $ECHO_C" >&6
+if test "${enable_crtbeginP+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+if test x$enable_esp = xyes ; then
+ case "$target" in
+ ia64*-*-linux*)
+ enable_crtbeginP=no ;;
+ *-*-linux*)
+ if test x$gcc_cv_ld_pie = xyes && test x$lt_cv_prog_compiler_static_works = xyes; then
+ enable_crtbeginP=yes
+ fi
+ ;;
+ *) enable_crtbeginP=no ;;
+ esac
+fi
+
+fi
+echo "$as_me:$LINENO: result: $enable_crtbeginP" >&5
+echo "${ECHO_T}$enable_crtbeginP" >&6
+
+if test x$enable_crtbeginP = xyes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define ENABLE_CRTBEGINP 1
+_ACEOF
+
+fi
+
# Check if TFmode long double should be used by default or not.
# Some glibc targets used DFmode long double, but with glibc 2.4
# and later they can use TFmode.
--- libmudflap/configure 2009-12-05 12:18:53.000000000 -0500
+++ libmudflap/configure 2010-02-07 14:29:51.000000000 -0500
@@ -652,6 +652,7 @@
MAINTAINER_MODE_FALSE
MAINTAINER_MODE_TRUE
am__untar
+enable_esp
am__tar
AMTAR
am__leading_dot
|
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