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GNU C Library master sources branch master updated. glibc-2.22-532-g89569c8

From: hjl at sourceware dot org
To: glibc-cvs at sourceware dot org
Date: 14 Nov 2015 20:17:20 -0000
Subject: GNU C Library master sources branch master updated. glibc-2.22-532-g89569c8
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The branch, master has been updated
       via  89569c8bb6b386db4881af0e96514d2ec5c35478 (commit)
      from  909f8e14dbe4073d75a776b4a9f50e5cc450f161 (commit)

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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=89569c8bb6b386db4881af0e96514d2ec5c35478

commit 89569c8bb6b386db4881af0e96514d2ec5c35478
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Sat Nov 14 12:00:16 2015 -0800

    Run tst-prelink test for GLOB_DAT reloc
    
    Run tst-prelink test on targets with GLOB_DAT relocaton.
    
    	* config.make.in (have-glob-dat-reloc): New.
    	* configure.ac (libc_cv_has_glob_dat): New.  Set to yes if
    	target supports GLOB_DAT relocaton. AC_SUBST.
    	* configure: Regenerated.
    	* elf/Makefile (tests): Add tst-prelink.
    	(tests-special): Add $(objpfx)tst-prelink-cmp.out.
    	(tst-prelink-ENV): New.
    	($(objpfx)tst-prelink-conflict.out): Likewise.
    	($(objpfx)tst-prelink-cmp.out): Likewise.
    	* sysdeps/x86/tst-prelink.c: Moved to ...
    	* elf/tst-prelink.c: Here.
    	* sysdeps/x86/tst-prelink.exp: Moved to ...
    	* elf/tst-prelink.exp: Here.
    	* sysdeps/x86/Makefile (tests): Don't add tst-prelink.
    	(tst-prelink-ENV): Removed.
    	($(objpfx)tst-prelink-conflict.out): Likewise.
    	($(objpfx)tst-prelink-cmp.out): Likewise.
    	(tests-special): Don't add $(objpfx)tst-prelink-cmp.out.

diff --git a/ChangeLog b/ChangeLog
index b911aec..b1b25c6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,24 @@
+2015-11-14  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config.make.in (have-glob-dat-reloc): New.
+	* configure.ac (libc_cv_has_glob_dat): New.  Set to yes if
+	target supports GLOB_DAT relocaton. AC_SUBST.
+	* configure: Regenerated.
+	* elf/Makefile (tests): Add tst-prelink.
+	(tests-special): Add $(objpfx)tst-prelink-cmp.out.
+	(tst-prelink-ENV): New.
+	($(objpfx)tst-prelink-conflict.out): Likewise.
+	($(objpfx)tst-prelink-cmp.out): Likewise.
+	* sysdeps/x86/tst-prelink.c: Moved to ...
+	* elf/tst-prelink.c: Here.
+	* sysdeps/x86/tst-prelink.exp: Moved to ...
+	* elf/tst-prelink.exp: Here.
+	* sysdeps/x86/Makefile (tests): Don't add tst-prelink.
+	(tst-prelink-ENV): Removed.
+	($(objpfx)tst-prelink-conflict.out): Likewise.
+	($(objpfx)tst-prelink-cmp.out): Likewise.
+	(tests-special): Don't add $(objpfx)tst-prelink-cmp.out.
+
 2015-11-13  Joseph Myers  <joseph@codesourcery.com>
 
 	[BZ #14551]
diff --git a/config.make.in b/config.make.in
index 75bb9cc..ba9c60d 100644
--- a/config.make.in
+++ b/config.make.in
@@ -50,6 +50,7 @@ enable-werror = @enable_werror@
 have-z-combreloc = @libc_cv_z_combreloc@
 have-z-execstack = @libc_cv_z_execstack@
 have-protected-data = @libc_cv_protected_data@
+have-glob-dat-reloc = @libc_cv_has_glob_dat@
 with-fp = @with_fp@
 enable-timezone-tools = @enable_timezone_tools@
 unwind-find-fde = @libc_cv_gcc_unwind_find_fde@
diff --git a/configure b/configure
index 01f5075..90953f0 100755
--- a/configure
+++ b/configure
@@ -622,6 +622,7 @@ libc_cv_cc_nofma
 stack_protector
 fno_unit_at_a_time
 libc_cv_output_format
+libc_cv_has_glob_dat
 libc_cv_hashstyle
 libc_cv_fpie
 libc_cv_z_execstack
@@ -5693,6 +5694,39 @@ $as_echo "$libc_cv_use_default_link" >&6; }
   use_default_link=$libc_cv_use_default_link
 fi
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GLOB_DAT reloc" >&5
+$as_echo_n "checking for GLOB_DAT reloc... " >&6; }
+if ${libc_cv_has_glob_dat+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat > conftest.c <<EOF
+extern int mumble;
+int foo (void) { return mumble; }
+EOF
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
+			-fPIC -shared -o conftest.so conftest.c
+			-nostdlib -nostartfiles
+			1>&5'
+  { { eval echo "\"\$as_me\":${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
+  if $READELF -rW conftest.so | grep '_GLOB_DAT' > /dev/null; then
+    libc_cv_has_glob_dat=yes
+  else
+    libc_cv_has_glob_dat=no
+  fi
+else
+  libc_cv_has_glob_dat=no
+fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_has_glob_dat" >&5
+$as_echo "$libc_cv_has_glob_dat" >&6; }
+
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker output format" >&5
 $as_echo_n "checking linker output format... " >&6; }
 if ${libc_cv_output_format+:} false; then :
diff --git a/configure.ac b/configure.ac
index 3fdf992..cd37433 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1340,6 +1340,29 @@ $ac_try"
   use_default_link=$libc_cv_use_default_link
 fi
 
+AC_CACHE_CHECK(for GLOB_DAT reloc,
+	       libc_cv_has_glob_dat, [dnl
+cat > conftest.c <<EOF
+extern int mumble;
+int foo (void) { return mumble; }
+EOF
+if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
+			-fPIC -shared -o conftest.so conftest.c
+			-nostdlib -nostartfiles
+			1>&AS_MESSAGE_LOG_FD])
+then
+dnl look for GLOB_DAT relocation.
+  if $READELF -rW conftest.so | grep '_GLOB_DAT' > /dev/null; then
+    libc_cv_has_glob_dat=yes
+  else
+    libc_cv_has_glob_dat=no
+  fi
+else
+  libc_cv_has_glob_dat=no
+fi
+rm -f conftest*])
+AC_SUBST(libc_cv_has_glob_dat)
+
 AC_CACHE_CHECK(linker output format, libc_cv_output_format, [dnl
 if libc_cv_output_format=`
 ${CC-cc} -nostartfiles -nostdlib -Wl,--print-output-format 2>&AS_MESSAGE_LOG_FD`
diff --git a/elf/Makefile b/elf/Makefile
index 76985cc..9d2dc5c 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -302,6 +302,13 @@ check-abi: $(objpfx)check-abi-ld.out
 tests-special += $(objpfx)check-abi-ld.out
 update-abi: update-abi-ld
 
+ifeq ($(have-glob-dat-reloc),yes)
+tests += tst-prelink
+ifeq ($(run-built-tests),yes)
+tests-special += $(objpfx)tst-prelink-cmp.out
+endif
+endif
+
 include ../Rules
 
 ifeq (yes,$(build-shared))
@@ -1234,3 +1241,13 @@ $(objpfx)tst-audit12: $(libdl)
 tst-audit12-ENV = LD_AUDIT=$(objpfx)tst-auditmod12.so
 $(objpfx)tst-audit12mod1.so: $(objpfx)tst-audit12mod2.so
 LDFLAGS-tst-audit12mod2.so = -Wl,--version-script=tst-audit12mod2.map
+
+tst-prelink-ENV = LD_TRACE_PRELINKING=1
+
+$(objpfx)tst-prelink-conflict.out: $(objpfx)tst-prelink.out
+	grep stdout $< | grep conflict | $(AWK) '{ print $$10, $$11 }' > $@
+
+$(objpfx)tst-prelink-cmp.out: tst-prelink.exp \
+			      $(objpfx)tst-prelink-conflict.out
+	cmp $^ > $@; \
+	$(evaluate-test)
diff --git a/sysdeps/x86/tst-prelink.c b/elf/tst-prelink.c
similarity index 100%
rename from sysdeps/x86/tst-prelink.c
rename to elf/tst-prelink.c
diff --git a/sysdeps/x86/tst-prelink.exp b/elf/tst-prelink.exp
similarity index 100%
rename from sysdeps/x86/tst-prelink.exp
rename to elf/tst-prelink.exp
diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile
index a2f4f8a..0de4f42 100644
--- a/sysdeps/x86/Makefile
+++ b/sysdeps/x86/Makefile
@@ -7,19 +7,4 @@ sysdep-dl-routines += dl-get-cpu-features
 
 tests += tst-get-cpu-features
 tests-static += tst-get-cpu-features-static
-
-tests += tst-prelink
-tst-prelink-ENV = LD_TRACE_PRELINKING=1
-
-$(objpfx)tst-prelink-conflict.out: $(objpfx)tst-prelink.out
-	grep stdout $< | grep conflict | $(AWK) '{ print $$10, $$11 }' > $@
-
-$(objpfx)tst-prelink-cmp.out: $(..)sysdeps/x86/tst-prelink.exp \
-			      $(objpfx)tst-prelink-conflict.out
-	cmp $^ > $@; \
-	$(evaluate-test)
-
-ifeq ($(run-built-tests),yes)
-tests-special += $(objpfx)tst-prelink-cmp.out
-endif
 endif

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                            |   21 +++++++++++++++++++++
 config.make.in                       |    1 +
 configure                            |   34 ++++++++++++++++++++++++++++++++++
 configure.ac                         |   23 +++++++++++++++++++++++
 elf/Makefile                         |   17 +++++++++++++++++
 {sysdeps/x86 => elf}/tst-prelink.c   |    0
 {sysdeps/x86 => elf}/tst-prelink.exp |    0
 sysdeps/x86/Makefile                 |   15 ---------------
 8 files changed, 96 insertions(+), 15 deletions(-)
 rename {sysdeps/x86 => elf}/tst-prelink.c (100%)
 rename {sysdeps/x86 => elf}/tst-prelink.exp (100%)


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