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| author | Joseph Myers <joseph@codesourcery.com> | 2014-06-26 17:33:32 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2014-06-26 17:33:32 +0000 |
| commit | a8779c28a8172b6573c9dd1724540e679c77168c (patch) | |
| tree | d0a1bd81d9e6657d05d4c52f27eeeb62ad31aa1b /configure.ac | |
| parent | 059bf913b5b3c5553a3756b4d9794e2eb3ce4f25 (diff) | |
| download | glibc-a8779c28a8172b6573c9dd1724540e679c77168c.tar.gz glibc-a8779c28a8172b6573c9dd1724540e679c77168c.tar.xz glibc-a8779c28a8172b6573c9dd1724540e679c77168c.zip | |
Remove configure tests for assembler CFI support.
This patch removes configure tests for assembler CFI support (and thereby eliminates an architecture-specific case in the main configure.ac), instead assuming that support is present unconditionally. The main test was added in 2003 around the time CFI support was added to the assembler. cfi_personality and cfi_lsda support were added to the assembler in 2006. cfi_sections support was added in 2009, a few weeks before binutils 2.20 was released; it's in 2.20, the minimum supported version, so even that configure test is obsolete. Tested x86_64 that the installed shared libraries are unchanged by this patch. * configure.ac (libc_cv_asm_cfi_directives): Remove configure test. * configure: Regenerated. * config.h.in (HAVE_ASM_CFI_DIRECTIVES): Remove macro undefine. * sysdeps/arm/configure.ac (libc_cv_asm_cfi_directive_sections): Remove configure test. * sysdeps/arm/configure: Regenerated. * sysdeps/nptl/configure.ac: Do not check libc_cv_asm_cfi_directives. * sysdeps/nptl/configure: Regenerated. * sysdeps/x86_64/nptl/configure.ac: Remove file. * sysdeps/x86_64/nptl/configure: Remove generated file. * b/sysdeps/generic/sysdep.h [HAVE_ASM_CFI_DIRECTIVES]: Make code unconditional. [!HAVE_ASM_CFI_DIRECTIVES]: Remove conditional code.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/configure.ac b/configure.ac index bd3e829666..22c2b4c376 100644 --- a/configure.ac +++ b/configure.ac @@ -1696,30 +1696,6 @@ elif test $libc_cv_asm_weakext_directive = yes; then AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE) fi -AC_CACHE_CHECK(whether CFI directives are supported, libc_cv_asm_cfi_directives, [dnl -case $machine in - sparc/sparc64*) cfi_offset=2047;; - *) cfi_offset=0;; -esac -cat > conftest.s <<EOF - .text - .type func,%function -func: - .cfi_startproc - .cfi_remember_state - .cfi_rel_offset 1, $cfi_offset - .cfi_endproc -EOF -if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then - libc_cv_asm_cfi_directives=yes -else - libc_cv_asm_cfi_directives=no -fi -rm -f conftest*]) -if test $libc_cv_asm_cfi_directives = yes; then - AC_DEFINE(HAVE_ASM_CFI_DIRECTIVES) -fi - AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl cat > conftest.c <<\EOF _start () {} |