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[Bug sanitizer/79944] asan: incorrect instrumentation of atomic operations
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 09 Mar 2017 09:20:54 +0000
- Subject: [Bug sanitizer/79944] asan: incorrect instrumentation of atomic operations
- Auto-submitted: auto-generated
- References: <bug-79944-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79944
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Mar 9 09:20:23 2017
New Revision: 245991
URL: https://gcc.gnu.org/viewcvs?rev=245991&root=gcc&view=rev
Log:
PR sanitizer/79944
* asan.c (get_mem_refs_of_builtin_call): For BUILT_IN_ATOMIC* and
BUILT_IN_SYNC*, determine the access type from the size suffix and
always build a MEM_REF with that type. Handle forgotten
BUILT_IN_SYNC_FETCH_AND_NAND_16 and BUILT_IN_SYNC_NAND_AND_FETCH_16.
* c-c++-common/asan/pr79944.c: New test.
Added:
trunk/gcc/testsuite/c-c++-common/asan/pr79944.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/asan.c
trunk/gcc/testsuite/ChangeLog