From: Ryan S. Arnold <rsa@us.ibm.com>
Date: Thu, 17 Feb 2011 05:59:15 +0000 (-0500)
Subject: Disable VSX usage in rtld.c to prevent TOC ref before relocs are resolved.
X-Git-Tag: glibc-2.14~234
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2206397e1c46f69fb20eeb3de1920d3a7014c325;p=thirdparty%2Fglibc.git

Disable VSX usage in rtld.c to prevent TOC ref before relocs are resolved.
---

diff --git a/ChangeLog b/ChangeLog
index b0b6c559611..6d05768365f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2011-02-15  Ryan S. Arnold  <rsa@us.ibm.com>
+
+	* sysdeps/powerpc/powerpc64/power7/Makefile: New file which adds
+	-mno-vsx to the CFLAGS-rtld.c variable to avoid using VSX registers and
+	insns in _dl_start to prevent a TOC reference before relocs are
+	resolved.
+
 2011-02-15  Ulrich Drepper  <drepper@gmail.com>
 
 	[BZ #12469]
diff --git a/sysdeps/powerpc/powerpc64/power7/Makefile b/sysdeps/powerpc/powerpc64/power7/Makefile
new file mode 100644
index 00000000000..b0f45205b9b
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/power7/Makefile
@@ -0,0 +1,5 @@
+ifeq ($(subdir),elf)
+# Prevent the use of VSX registers and insns in _dl_start, which under -O3
+# optimization may require a TOC reference before relocations are resolved.
+CFLAGS-rtld.c += -mno-vsx
+endif