svn commit: r232932 - head/lib/csu/powerpc64

[Nathan Whitehorn]

Author: nwhitehorn
Date: Tue Mar 13 18:59:19 2012
New Revision: 232932
URL: http://svn.freebsd.org/changeset/base/232932

Log:
  Work around a binutils bug on powerpc64 where the TOC would not be
  properly reloaded when calling _fini() in large binaries with multiple
  TOC sections (e.g. GCC), leading to a segmentation fault. Adding -mlongcall
  to crt1 flags causes the compiler to emit explicit TOC load instructions
  for all function calls, including _fini().
  
  Reviewed by:	kib
  Pointy hat to:	kib

Modified:
  head/lib/csu/powerpc64/Makefile

Modified: head/lib/csu/powerpc64/Makefile
==============================================================================
--- head/lib/csu/powerpc64/Makefile	Tue Mar 13 18:53:28 2012	(r232931)
+++ head/lib/csu/powerpc64/Makefile	Tue Mar 13 18:59:19 2012	(r232932)
@@ -6,7 +6,8 @@ SRCS=		crt1.c crti.S crtn.S
 OBJS=		${SRCS:N*.h:R:S/$/.o/g}
 OBJS+=		Scrt1.o gcrt1.o
 CFLAGS+=	-I${.CURDIR}/../common \
-		-I${.CURDIR}/../../libc/include
+		-I${.CURDIR}/../../libc/include \
+		-mlongcall
 
 all: ${OBJS}