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| author | Jakub Jelinek <jakub@redhat.com> | 2017-07-28 12:37:51 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2017-07-28 12:37:51 +0200 |
| commit | c9b39a4955f56fe609ef54784f7bf48c4cba6b1a (patch) | |
| tree | 6ddac4284a4bae1e7241b22e28dcaaeb311277f9 /gcc/flag-types.h | |
| parent | 70affe6aff39d347a0e2b7f12a27e1cad4cae405 (diff) | |
| download | gcc-c9b39a4955f56fe609ef54784f7bf48c4cba6b1a.zip gcc-c9b39a4955f56fe609ef54784f7bf48c4cba6b1a.tar.gz gcc-c9b39a4955f56fe609ef54784f7bf48c4cba6b1a.tar.bz2 | |
re PR sanitizer/80998 (Implement -fsanitize=pointer-overflow)
PR sanitizer/80998
* sanopt.c (pass_sanopt::execute): Handle IFN_UBSAN_PTR.
* tree-ssa-alias.c (call_may_clobber_ref_p_1): Likewise.
* flag-types.h (enum sanitize_code): Add SANITIZER_POINTER_OVERFLOW.
Or it into SANITIZER_UNDEFINED.
* ubsan.c: Include gimple-fold.h and varasm.h.
(ubsan_expand_ptr_ifn): New function.
(instrument_pointer_overflow): New function.
(maybe_instrument_pointer_overflow): New function.
(instrument_object_size): Formatting fix.
(pass_ubsan::execute): Call instrument_pointer_overflow
and maybe_instrument_pointer_overflow.
* internal-fn.c (expand_UBSAN_PTR): New function.
* ubsan.h (ubsan_expand_ptr_ifn): Declare.
* sanitizer.def (__ubsan_handle_pointer_overflow,
__ubsan_handle_pointer_overflow_abort): New builtins.
* tree-ssa-tail-merge.c (merge_stmts_p): Handle IFN_UBSAN_PTR.
* internal-fn.def (UBSAN_PTR): New internal function.
* opts.c (sanitizer_opts): Add pointer-overflow.
* lto-streamer-in.c (input_function): Handle IFN_UBSAN_PTR.
* fold-const.c (build_range_check): Compute pointer range check in
integral type if pointer arithmetics would be needed. Formatting
fixes.
gcc/testsuite/
* c-c++-common/ubsan/ptr-overflow-1.c: New test.
* c-c++-common/ubsan/ptr-overflow-2.c: New test.
libsanitizer/
* ubsan/ubsan_handlers.cc: Cherry-pick upstream r304461.
* ubsan/ubsan_checks.inc: Likewise.
* ubsan/ubsan_handlers.h: Likewise.
From-SVN: r250656
Diffstat (limited to 'gcc/flag-types.h')
| -rw-r--r-- | gcc/flag-types.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/flag-types.h b/gcc/flag-types.h index 5faade5..6372d3c 100644 --- a/gcc/flag-types.h +++ b/gcc/flag-types.h @@ -238,6 +238,7 @@ enum sanitize_code { SANITIZE_OBJECT_SIZE = 1UL << 21, SANITIZE_VPTR = 1UL << 22, SANITIZE_BOUNDS_STRICT = 1UL << 23, + SANITIZE_POINTER_OVERFLOW = 1UL << 24, SANITIZE_SHIFT = SANITIZE_SHIFT_BASE | SANITIZE_SHIFT_EXPONENT, SANITIZE_UNDEFINED = SANITIZE_SHIFT | SANITIZE_DIVIDE | SANITIZE_UNREACHABLE | SANITIZE_VLA | SANITIZE_NULL | SANITIZE_RETURN @@ -245,7 +246,8 @@ enum sanitize_code { | SANITIZE_BOUNDS | SANITIZE_ALIGNMENT | SANITIZE_NONNULL_ATTRIBUTE | SANITIZE_RETURNS_NONNULL_ATTRIBUTE - | SANITIZE_OBJECT_SIZE | SANITIZE_VPTR, + | SANITIZE_OBJECT_SIZE | SANITIZE_VPTR + | SANITIZE_POINTER_OVERFLOW, SANITIZE_UNDEFINED_NONDEFAULT = SANITIZE_FLOAT_DIVIDE | SANITIZE_FLOAT_CAST | SANITIZE_BOUNDS_STRICT }; |