From 75b0964bc8f00400056449eceb8ab57c8eb3fde2 Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Thu, 15 Oct 2015 19:47:55 +0000
Subject: 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  Thus this configure test is obsolete, and this patch removes it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.
---
 configure.ac | 31 -------------------------------
 1 file changed, 31 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 047c632..384bf3f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1138,37 +1138,6 @@ if test $libc_cv_asm_unique_object = yes; then
   AC_DEFINE(HAVE_ASM_UNIQUE_OBJECT)
 fi
 
-AC_CACHE_CHECK(for .previous assembler directive,
-	       libc_cv_asm_previous_directive, [dnl
-cat > conftest.s <<EOF
-.section foo_section
-.previous
-EOF
-if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
-  libc_cv_asm_previous_directive=yes
-else
-  libc_cv_asm_previous_directive=no
-fi
-rm -f conftest*])
-if test $libc_cv_asm_previous_directive = yes; then
-  AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE)
-else
-  AC_CACHE_CHECK(for .popsection assembler directive,
-		 libc_cv_asm_popsection_directive, [dnl
-  cat > conftest.s <<EOF
-.pushsection foo_section
-.popsection
-EOF
-  if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
-    libc_cv_asm_popsection_directive=yes
-  else
-    libc_cv_asm_popsection_directive=no
-  fi
-  rm -f conftest*])
-  if test $libc_cv_asm_popsection_directive = yes; then
-    AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE)
-  fi
-fi
 AC_CACHE_CHECK(for .protected and .hidden assembler directive,
 	       libc_cv_asm_protected_directive, [dnl
 cat > conftest.s <<EOF
-- 
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