diff options
| author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
| commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
| tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/config/ld-symbolic.m4 | |
| parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
| download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip | |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/config/ld-symbolic.m4')
| -rw-r--r-- | gcc-4.9/config/ld-symbolic.m4 | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/gcc-4.9/config/ld-symbolic.m4 b/gcc-4.9/config/ld-symbolic.m4 new file mode 100644 index 000000000..16d64f9ad --- /dev/null +++ b/gcc-4.9/config/ld-symbolic.m4 @@ -0,0 +1,45 @@ +dnl Copyright (C) 2007 Free Software Foundation, Inc. +dnl This file is free software, distributed under the terms of the GNU +dnl General Public License. As a special exception to the GNU General +dnl Public License, this file may be distributed as part of a program +dnl that contains a configuration script generated by Autoconf, under +dnl the same distribution terms as the rest of that program. + +dnl Set SYMBOLIC_LDFLAGS to -Bsymbolic-functions for GNU linker if it +dnl is supported. +AC_DEFUN([ACX_PROG_LD_GNU_SYMBOLIC], +[AC_CACHE_CHECK([if the GNU linker ($LD) supports -Bsymbolic-functions], +acl_cv_prog_gnu_ld_symbolic, [ +acl_cv_prog_gnu_ld_symbolic=no +AC_REQUIRE([AC_LIB_PROG_LD_GNU]) +if test x"$with_gnu_ld" = x"yes"; then + if $LD --help 2>&1 </dev/null | grep Bsymbolic-functions 1>&5; then + acl_cv_prog_gnu_ld_symbolic=yes + fi +fi]) +if test x"$acl_cv_prog_gnu_ld_symbolic" = x"yes"; then + SYMBOLIC_LDFLAGS="-Wl,-Bsymbolic-functions" +else + SYMBOLIC_LDFLAGS='' +fi +]) + +dnl Set DYNAMIC_LIST_CPP_NEW_LDFLAGS to --dynamic-list-cpp-new for GNU +dnl linker if it is supported. +AC_DEFUN([ACX_PROG_LD_GNU_DYNAMIC_LIST_CPP_NEW], +[AC_CACHE_CHECK([if the GNU linker ($LD) supports --dynamic-list-cpp-new], +acl_cv_prog_gnu_ld_dynamic_list_cpp_new, [ +acl_cv_prog_gnu_ld_dynamic_list_cpp_new=no +AC_REQUIRE([ACX_PROG_LD_GNU_SYMBOLIC]) +if test x"$with_gnu_ld" = x"yes" -a \ + x"$acl_cv_prog_gnu_ld_symbolic" = x"yes"; then + if $LD --help 2>&1 </dev/null | grep dynamic-list-cpp-new 1>&5; then + acl_cv_prog_gnu_ld_dynamic_list_cpp_new=yes + fi +fi]) +if test x"$acl_cv_prog_gnu_ld_dynamic_list_cpp_new" = x"yes"; then + DYNAMIC_LIST_CPP_NEW_LDFLAGS="$SYMBOLIC_LDFLAGS -Wl,--dynamic-list-cpp-new" +else + DYNAMIC_LIST_CPP_NEW_LDFLAGS='' +fi +]) |