diff options
Diffstat (limited to 'gcc-4.4.3/gcc/configure.ac')
| -rw-r--r-- | gcc-4.4.3/gcc/configure.ac | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/gcc-4.4.3/gcc/configure.ac b/gcc-4.4.3/gcc/configure.ac index 1b8fcf614..1ee190a76 100644 --- a/gcc-4.4.3/gcc/configure.ac +++ b/gcc-4.4.3/gcc/configure.ac @@ -3651,6 +3651,38 @@ if test x"$enable_linker_build_id" = xyes; then fi fi +AC_CACHE_CHECK(linker -z now support, +gcc_cv_ld_now, +[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 +]) + +AC_CACHE_CHECK(linker -z relro support, +gcc_cv_ld_relro, +[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 $gcc_cv_ld --help 2>/dev/null | grep relro > /dev/null; then + gcc_cv_ld_relro=yes + fi +fi +]) + AC_CACHE_CHECK(linker --sysroot support, gcc_cv_ld_sysroot, [gcc_cv_ld_sysroot=no @@ -3734,6 +3766,32 @@ if test x$gcc_cv_libc_provides_ssp = xyes; then [Define if your target C library provides stack protector support]) fi +if test x$enable_esp = xyes ; then + if test x$gcc_cv_ld_relro = xyes && test x$gcc_cv_ld_now = xyes; then + AC_DEFINE(ENABLE_ESP, 1, + [Define if your target support esp and you have enable it.]) + else + AC_MSG_ERROR([*** --enable-esp Need a linker that support -z now and -z relro.]) + fi +fi +AC_SUBST([enable_esp]) + +if test x$enable_esp = xyes ; then + case "$target" in + *-*-linux*) + if test x$gcc_cv_ld_pie = xyes && test x$lt_cv_prog_compiler_static_works = xyes; then + enable_crtbeginTS=yes + fi + ;; + *) enable_crtbeginTS=no ;; + esac +fi +AC_SUBST([enable_crtbeginTS]) +if test x$enable_crtbeginTS = xyes; then + AC_DEFINE(ENABLE_CRTBEGINTS, 1, + [Define if your target crtbeginTS support]) +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. @@ -4038,6 +4096,13 @@ htmldir="\${prefix}/$with_htmldir", htmldir='$(docdir)') AC_SUBST(htmldir) +# Google-local http://b/2739909 +AC_ARG_WITH([rpath-spec], +[ --with-rpath-spec=SPEC Use rpath spec as part of default link specs], +[link_rpath_spec="$withval"], +[link_rpath_spec=]) +AC_SUBST(link_rpath_spec) + # Substitute configuration variables AC_SUBST(subdirs) AC_SUBST(srcdir) |