Don't segfault the guest during a call MPI_Init(NULL,NULL), since
those are valid parameters to MPI_Init.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8812 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/auxprogs/libmpiwrap.c b/auxprogs/libmpiwrap.c
index 10858c1..6369c98 100644
--- a/auxprogs/libmpiwrap.c
+++ b/auxprogs/libmpiwrap.c
@@ -2113,8 +2113,12 @@
int err;
VALGRIND_GET_ORIG_FN(fn);
before("Init");
- check_mem_is_defined_untyped(argc, sizeof(int));
- check_mem_is_defined_untyped(*argv, *argc * sizeof(char**));
+ if (argc) {
+ check_mem_is_defined_untyped(argc, sizeof(int));
+ }
+ if (argc && argv) {
+ check_mem_is_defined_untyped(*argv, *argc * sizeof(char**));
+ }
CALL_FN_W_WW(err, fn, argc,argv);
after("Init", err);
if (opt_initkludge)