[PATCH] Fix when -lssp is added by driver (PR middle-end/81400).

[Martin Liška]

Hi.

Following patch adds -lspp when one uses -mstack-protector-guard=global.

Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.

Ready to be installed?

Martin

gcc/ChangeLog:

2017-07-12  Martin Liska  <mli...@suse.cz>

        PR middle-end/81400
        * gcc.c: Add -lssp when one uses -mstack-protector-guard=global.
---
 gcc/gcc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)



diff --git a/gcc/gcc.c b/gcc/gcc.c
index e8e3d6687c3..0043f86d8d2 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -869,7 +869,8 @@ proper position among the other output files.  */
 #ifndef LINK_SSP_SPEC
 #ifdef TARGET_LIBC_PROVIDES_SSP
 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
-		       "|fstack-protector-strong|fstack-protector-explicit:}"
+		       "|fstack-protector-strong|fstack-protector-explicit:" \
+		       "%{mstack-protector-guard=global:-lssp}}"
 #else
 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
 		       "|fstack-protector-strong|fstack-protector-explicit" \