lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-28 00:21:52 +03:00
Code Activity

Remove configure tests for assembler CFI support.

Browse Source 
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supported version, so even that configure test is obsolete.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.
This commit is contained in:
Joseph Myers
2014-06-26 17:33:32 +00:00
parent 059bf913b5
commit a8779c28a8
11 changed files with 57 additions and 246 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
configure vendored
View File

@ -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 :