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| author | Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> | 2010-03-15 19:36:26 +0000 |
|---|---|---|
| committer | Rainer Orth <ro@gcc.gnu.org> | 2010-03-15 19:36:26 +0000 |
| commit | f4b130bb743f1d86d8976bfb5ed5ef471ef619f8 (patch) | |
| tree | b08b4948d80791b0d6ae7cf89ddff136424373b8 /libffi/configure.ac | |
| parent | 7dee65d88aac66bb29077c470a10b6969ac8450d (diff) | |
| download | gcc-f4b130bb743f1d86d8976bfb5ed5ef471ef619f8.zip gcc-f4b130bb743f1d86d8976bfb5ed5ef471ef619f8.tar.gz gcc-f4b130bb743f1d86d8976bfb5ed5ef471ef619f8.tar.bz2 | |
configure.ac (libffi_cv_as_x86_64_unwind_section_type): New test.
* configure.ac (libffi_cv_as_x86_64_unwind_section_type): New test.
* configure: Regenerate.
* fficonfig.h.in: Regenerate.
* libffi/src/x86/unix64.S (.eh_frame)
[HAVE_AS_X86_64_UNWIND_SECTION_TYPE]: Use @unwind section type.
From-SVN: r157466
Diffstat (limited to 'libffi/configure.ac')
| -rw-r--r-- | libffi/configure.ac | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/libffi/configure.ac b/libffi/configure.ac index c0e0da1..1b484f9 100644 --- a/libffi/configure.ac +++ b/libffi/configure.ac @@ -284,6 +284,21 @@ case "$target" in ;; esac +if test x$TARGET = xX86_64; then + AC_CACHE_CHECK([assembler supports unwind section type], + libffi_cv_as_x86_64_unwind_section_type, [ + libffi_cv_as_x86_64_unwind_section_type=yes + echo '.section .eh_frame,"a",@unwind' > conftest.s + if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then + libffi_cv_as_x86_64_unwind_section_type=no + fi + ]) + if test "x$libffi_cv_as_x86_64_unwind_section_type" = xyes; then + AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1, + [Define if your assembler supports unwind section type.]) + fi +fi + AC_CACHE_CHECK([whether .eh_frame section should be read-only], libffi_cv_ro_eh_frame, [ libffi_cv_ro_eh_frame=no |