setup_client_stack: use have_exename to consistently guard uses
of VG_(args_the_exename), thereby avoiding a potential segfault.
Spotted by IBM's BEAM checker.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11724 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/m_initimg/initimg-linux.c b/coregrind/m_initimg/initimg-linux.c
index 4b9f0dd..3250343 100644
--- a/coregrind/m_initimg/initimg-linux.c
+++ b/coregrind/m_initimg/initimg-linux.c
@@ -456,7 +456,7 @@
stringsize += VG_(strlen)(cauxv->u.a_ptr) + 1;
else if (cauxv->a_type == AT_RANDOM)
stringsize += 16;
- else if (cauxv->a_type == AT_EXECFN)
+ else if (cauxv->a_type == AT_EXECFN && have_exename)
stringsize += VG_(strlen)(VG_(args_the_exename)) + 1;
auxsize += sizeof(*cauxv);
}