diff options
| author | Martin Sebor <msebor@redhat.com> | 2019-12-05 01:28:11 +0000 |
|---|---|---|
| committer | Martin Sebor <msebor@gcc.gnu.org> | 2019-12-04 18:28:11 -0700 |
| commit | 268209f3a0dc07fcf13534610447ab732742eb2f (patch) | |
| tree | 19c70c9ade74615720a40b206b35dcfc02c63f53 /gcc/builtins.h | |
| parent | a59c50bd14f5bcb467a21ceb55f6b082510efc2f (diff) | |
| download | gcc-268209f3a0dc07fcf13534610447ab732742eb2f.zip gcc-268209f3a0dc07fcf13534610447ab732742eb2f.tar.gz gcc-268209f3a0dc07fcf13534610447ab732742eb2f.tar.bz2 | |
PR middle-end/91582 - missing heap overflow detection for strcpy
gcc/ChangeLog:
PR middle-end/91582
* builtins.c (gimple_call_alloc_size): New function.
(compute_objsize): Add argument. Call gimple_call_alloc_size.
Handle variable offsets and indices.
* builtins.h (gimple_call_alloc_size): Declare.
(compute_objsize): Add argument.
* gcc/gimple-ssa-warn-restrict.c: Remove assertions.
* tree-ssa-strlen.c (handle_store): Handle calls to allocated objects.
gcc/testsuite/ChangeLog:
PR middle-end/91582
* c-c++-common/Wstringop-truncation.c: Remove xfails.
* g++.dg/warn/Wstringop-overflow-4.C: New test.
* g++.dg/ext/attr-alloc_size.C: Suppress -Warray-bounds.
* gcc.dg/Warray-bounds-56.c: New test.
* gcc.dg/Wstringop-overflow-22.c: New test.
* gcc.dg/attr-alloc_size.c: Suppress -Warray-bounds.
* gcc.dg/attr-copy-2.c: Same.
* gcc.dg/builtin-stringop-chk-5.c: Remove xfails.
* gcc.dg/builtin-stringop-chk-8.c: Same. Correct the text of expected
warnings.
* gcc.target/i386/pr82002-2a.c: Prune expected warning.
* gcc.target/i386/pr82002-2b.c: Same.
From-SVN: r278983
Diffstat (limited to 'gcc/builtins.h')
| -rw-r--r-- | gcc/builtins.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/builtins.h b/gcc/builtins.h index aa83a46..0fcccc1 100644 --- a/gcc/builtins.h +++ b/gcc/builtins.h @@ -133,7 +133,8 @@ extern tree fold_call_stmt (gcall *, bool); extern void set_builtin_user_assembler_name (tree decl, const char *asmspec); extern bool is_simple_builtin (tree); extern bool is_inexpensive_builtin (tree); -extern tree compute_objsize (tree, int, tree * = NULL); +extern tree gimple_call_alloc_size (gimple *); +extern tree compute_objsize (tree, int, tree * = NULL, tree * = NULL); extern bool readonly_data_expr (tree exp); extern bool init_target_chars (void); |