Add STATIC_LIBASAN_LIBS for -static-libasan

	* gcc.c (ADD_STATIC_LIBASAN_LIBS): New macro.  Defined
	with STATIC_LIBASAN_LIBS.
	(LIBASAN_SPEC): Add STATIC_LIBASAN_LIBS.
	* config/gnu-user.h (STATIC_LIBASAN_LIBS): New macro.

From-SVN: r193725

gcc/ChangeLog

+2012-11-22  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* gcc.c (ADD_STATIC_LIBASAN_LIBS): New macro.  Defined
+	with STATIC_LIBASAN_LIBS.
+	(LIBASAN_SPEC): Add STATIC_LIBASAN_LIBS.
+	* config/gnu-user.h (STATIC_LIBASAN_LIBS): New macro.
+
 2012-11-22  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	* config/arm/arm.md (*arm_abssi2): Define predicable attribute.

gcc/config/gnu-user.h

@@ -98,3 +98,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 
 #define TARGET_C99_FUNCTIONS 1
 #define TARGET_HAS_SINCOS 1
+
+/* Additional libraries needed by -static-libasan.  */
+#undef STATIC_LIBASAN_LIBS
+#define STATIC_LIBASAN_LIBS "-ldl -lpthread"

gcc/gcc.c

@@ -545,11 +545,18 @@ proper position among the other output files.  */
 #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
 
 #ifndef LIBASAN_SPEC
+#ifdef STATIC_LIBASAN_LIBS
+#define ADD_STATIC_LIBASAN_LIBS \
+  " %{static-libasan:" STATIC_LIBASAN_LIBS "}"
+#else
+#define ADD_STATIC_LIBASAN_LIBS
+#endif
 #ifdef HAVE_LD_STATIC_DYNAMIC
 #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
-		     "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}"
+		     "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
+		     ADD_STATIC_LIBASAN_LIBS
 #else
-#define LIBASAN_SPEC "-lasan"
+#define LIBASAN_SPEC "-lasan" ADD_STATIC_LIBASAN_LIBS
 #endif
 #endif