Under certain circumstances the sanitizer builtins are not initialized
properly and ubsan_instrument_return must make sure they are
initialized. Otherwise builtin_decl_explicit returns NULL and
we'll ICE in build_call_expr_loc_array. I'm not sure which other
ubsan routines need similar fix.
No testcase attached since it's not trivial to reproduce this.
Bootstrapped/ran ubsan testsuite on x86_64-linux, ok for trunk?
2014-04-03 Marek Polacek <pola...@redhat.com>
PR sanitizer/60745
* c-ubsan.c: Include asan.h.
(ubsan_instrument_return): Call initialize_sanitizer_builtins.
diff --git gcc/c-family/c-ubsan.c gcc/c-family/c-ubsan.c
index dc4d981..9d2403c 100644
--- gcc/c-family/c-ubsan.c
+++ gcc/c-family/c-ubsan.c
@@ -29,6 +29,7 @@ along with GCC; see the file COPYING3. If not see
#include "ubsan.h"
#include "c-family/c-common.h"
#include "c-family/c-ubsan.h"
+#include "asan.h"
/* Instrument division by zero and INT_MIN / -1. If not instrumenting,
return NULL_TREE. */
@@ -185,6 +186,8 @@ ubsan_instrument_vla (location_t loc, tree size)
tree
ubsan_instrument_return (location_t loc)
{
+ initialize_sanitizer_builtins ();
+
tree data = ubsan_create_data ("__ubsan_missing_return_data", &loc,
NULL, NULL_TREE);
tree t = builtin_decl_explicit (BUILT_IN_UBSAN_HANDLE_MISSING_RETURN);
Marek
