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authorJoseph Myers <joseph@codesourcery.com>2014-06-26 17:33:32 +0000
committerJoseph Myers <joseph@codesourcery.com>2014-06-26 17:33:32 +0000
commita8779c28a8172b6573c9dd1724540e679c77168c (patch)
treed0a1bd81d9e6657d05d4c52f27eeeb62ad31aa1b /configure
parent059bf913b5b3c5553a3756b4d9794e2eb3ce4f25 (diff)
downloadglibc-a8779c28a8172b6573c9dd1724540e679c77168c.tar.gz
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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supported version, so even that configure test is obsolete.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')
-rwxr-xr-xconfigure37
1 files changed, 0 insertions, 37 deletions
diff --git a/configure b/configure
index ac5a67cf9d..eefc43001d 100755
--- a/configure
+++ b/configure
@@ -6494,43 +6494,6 @@ elif test $libc_cv_asm_weakext_directive = yes; then
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether CFI directives are supported" >&5
-$as_echo_n "checking whether CFI directives are supported... " >&6; }
-if ${libc_cv_asm_cfi_directives+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  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, $cfi_offset
-	.cfi_endproc
-EOF
-if { ac_try='${CC-cc} $ASFLAGS -c conftest.s 1>&5'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then
-  libc_cv_asm_cfi_directives=yes
-else
-  libc_cv_asm_cfi_directives=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_cfi_directives" >&5
-$as_echo "$libc_cv_asm_cfi_directives" >&6; }
-if test $libc_cv_asm_cfi_directives = yes; then
-  $as_echo "#define HAVE_ASM_CFI_DIRECTIVES 1" >>confdefs.h
-
-fi
-
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld --no-whole-archive" >&5
 $as_echo_n "checking for ld --no-whole-archive... " >&6; }
 if ${libc_cv_ld_no_whole_archive+:} false; then :