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Remove .previous, .popsection configure tests.
There is a configure test for the assembler .previous directive, and, as a fallback, for .popsection. glibc now only supports ELF. For ELF, the GNU assembler has supported .previous since version 2.2 (support added by Mon Jul 19 15:21:20 1993 Ken Raeburn (raeburn@rtl.cygnus.com) * config/obj-elf.c (obj_elf_previous): New function. (previous_section, previous_subsection): New vars. (obj_elf_section): Save current place in case DWARF code wants us to pop back to it. Handle unquoted section name as well as quoted section name. Don't crash on invalid strings. (obj_pseudo_table): Handle new pseudos "previous", "2byte", and "4byte". ). Thus this configure test is obsolete, and this patch removes it (and with it the fallback .popsection test). Tested for x86_64 and x86 (testsuite, and that installed shared libraries are unchanged by the patch). * configure.ac (libc_cv_asm_previous_directive): Remove configure test. (libc_cv_asm_popsection_directive): Likewise. * configure: Regenerated. * config.h.in (HAVE_ASM_PREVIOUS_DIRECTIVE): Remove #undef. (HAVE_ASM_POPSECTION_DIRECTIVE): Likewise. * include/libc-symbols.h [HAVE_ASM_PREVIOUS_DIRECTIVE] (__make_section_unallocated): Make definition unconditional. [HAVE_ASM_POPSECTION_DIRECTIVE] (__make_section_unallocated): Remove conditional definition. [!HAVE_ASM_PREVIOUS_DIRECTIVE && !HAVE_ASM_POPSECTION_DIRECTIVE] (__make_section_unallocated): Likewise.
This commit is contained in:
Joseph Myers
parent
30f58bb192
commit
75b0964bc8
13
ChangeLog
13
ChangeLog
@ -1,5 +1,18 @@
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2015-10-15 Joseph Myers <joseph@codesourcery.com>
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* configure.ac (libc_cv_asm_previous_directive): Remove configure
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test.
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(libc_cv_asm_popsection_directive): Likewise.
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* configure: Regenerated.
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* config.h.in (HAVE_ASM_PREVIOUS_DIRECTIVE): Remove #undef.
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(HAVE_ASM_POPSECTION_DIRECTIVE): Likewise.
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* include/libc-symbols.h [HAVE_ASM_PREVIOUS_DIRECTIVE]
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(__make_section_unallocated): Make definition unconditional.
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[HAVE_ASM_POPSECTION_DIRECTIVE] (__make_section_unallocated):
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Remove conditional definition.
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[!HAVE_ASM_PREVIOUS_DIRECTIVE && !HAVE_ASM_POPSECTION_DIRECTIVE]
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(__make_section_unallocated): Likewise.
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* configure.ac (libc_cv_gcc_static_libgcc): Remove configure test.
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* configure: Regenerated.
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* config.make.in (static-libgcc): Remove variable.
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@ -43,14 +43,6 @@
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/* Define if _Unwind_Find_FDE should be exported from glibc. */
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#undef EXPORT_UNWIND_FIND_FDE
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/* Define if using ELF and the assembler supports the `.previous'
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directive. */
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#undef HAVE_ASM_PREVIOUS_DIRECTIVE
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/* Define if using ELF and the assembler supports the `.popsection'
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directive. */
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#undef HAVE_ASM_POPSECTION_DIRECTIVE
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/* Define if static NSS modules are wanted. */
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#undef DO_STATIC_NSS
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55
configure
vendored
55
configure
vendored
@ -5593,61 +5593,6 @@ if test $libc_cv_asm_unique_object = yes; then
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for .previous assembler directive" >&5
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$as_echo_n "checking for .previous assembler directive... " >&6; }
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if ${libc_cv_asm_previous_directive+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.s <<EOF
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.section foo_section
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.previous
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EOF
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if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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libc_cv_asm_previous_directive=yes
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else
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libc_cv_asm_previous_directive=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_previous_directive" >&5
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$as_echo "$libc_cv_asm_previous_directive" >&6; }
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if test $libc_cv_asm_previous_directive = yes; then
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$as_echo "#define HAVE_ASM_PREVIOUS_DIRECTIVE 1" >>confdefs.h
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for .popsection assembler directive" >&5
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$as_echo_n "checking for .popsection assembler directive... " >&6; }
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if ${libc_cv_asm_popsection_directive+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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cat > conftest.s <<EOF
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.pushsection foo_section
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.popsection
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EOF
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if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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libc_cv_asm_popsection_directive=yes
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else
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libc_cv_asm_popsection_directive=no
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fi
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rm -f conftest*
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_popsection_directive" >&5
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$as_echo "$libc_cv_asm_popsection_directive" >&6; }
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if test $libc_cv_asm_popsection_directive = yes; then
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$as_echo "#define HAVE_ASM_POPSECTION_DIRECTIVE 1" >>confdefs.h
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for .protected and .hidden assembler directive" >&5
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$as_echo_n "checking for .protected and .hidden assembler directive... " >&6; }
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if ${libc_cv_asm_protected_directive+:} false; then :
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31
configure.ac
31
configure.ac
@ -1138,37 +1138,6 @@ if test $libc_cv_asm_unique_object = yes; then
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AC_DEFINE(HAVE_ASM_UNIQUE_OBJECT)
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fi
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AC_CACHE_CHECK(for .previous assembler directive,
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libc_cv_asm_previous_directive, [dnl
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cat > conftest.s <<EOF
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.section foo_section
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.previous
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EOF
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if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
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libc_cv_asm_previous_directive=yes
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else
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libc_cv_asm_previous_directive=no
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fi
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rm -f conftest*])
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if test $libc_cv_asm_previous_directive = yes; then
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AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE)
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else
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AC_CACHE_CHECK(for .popsection assembler directive,
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libc_cv_asm_popsection_directive, [dnl
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cat > conftest.s <<EOF
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.pushsection foo_section
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.popsection
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EOF
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if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
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libc_cv_asm_popsection_directive=yes
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else
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libc_cv_asm_popsection_directive=no
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fi
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rm -f conftest*])
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if test $libc_cv_asm_popsection_directive = yes; then
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AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE)
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fi
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fi
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AC_CACHE_CHECK(for .protected and .hidden assembler directive,
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libc_cv_asm_protected_directive, [dnl
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cat > conftest.s <<EOF
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@ -175,15 +175,8 @@
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/* When a reference to SYMBOL is encountered, the linker will emit a
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warning message MSG. */
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/* We want the .gnu.warning.SYMBOL section to be unallocated. */
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#ifdef HAVE_ASM_PREVIOUS_DIRECTIVE
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# define __make_section_unallocated(section_string) \
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#define __make_section_unallocated(section_string) \
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asm (".section " section_string "\n\t.previous");
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#elif defined HAVE_ASM_POPSECTION_DIRECTIVE
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# define __make_section_unallocated(section_string) \
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asm (".pushsection " section_string "\n\t.popsection");
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#else
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# define __make_section_unallocated(section_string)
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#endif
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/* Tacking on "\n\t#" to the section name makes gcc put it's bogus
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section attributes on what looks like a comment to the assembler. */
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