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| author | Marek Polacek <polacek@redhat.com> | 2014-04-30 07:34:43 +0000 |
|---|---|---|
| committer | Marek Polacek <mpolacek@gcc.gnu.org> | 2014-04-30 07:34:43 +0000 |
| commit | f8ed5150c3a1f821fb0cf266fc0fca76027fbef9 (patch) | |
| tree | b9c2023c1b5e5c36a658f26af0093b269e49a14b /gcc/c | |
| parent | 8337d1db7113fa0c44541a1917529a0c41057a4a (diff) | |
| download | gcc-f8ed5150c3a1f821fb0cf266fc0fca76027fbef9.zip gcc-f8ed5150c3a1f821fb0cf266fc0fca76027fbef9.tar.gz gcc-f8ed5150c3a1f821fb0cf266fc0fca76027fbef9.tar.bz2 | |
gcc.c (sanitize_spec_function): Handle SANITIZE_FLOAT_DIVIDE.
* gcc.c (sanitize_spec_function): Handle SANITIZE_FLOAT_DIVIDE.
* builtins.def: Initialize builtins even for SANITIZE_FLOAT_DIVIDE.
* flag-types.h (enum sanitize_code): Add SANITIZE_FLOAT_DIVIDE.
* opts.c (common_handle_option): Add -fsanitize=float-divide-by-zero.
c-family/
* c-ubsan.c (ubsan_instrument_division): Handle REAL_TYPEs. Perform
INT_MIN / -1 sanitization only for integer types.
c/
* c-typeck.c (build_binary_op): Call ubsan_instrument_division
also when SANITIZE_FLOAT_DIVIDE is on.
cp/
* typeck.c (cp_build_binary_op): Call ubsan_instrument_division
even when SANITIZE_FLOAT_DIVIDE is on. Set doing_div_or_mod even
for non-integer types.
testsuite/
* c-c++-common/ubsan/div-by-zero-5.c: Fix formatting.
* c-c++-common/ubsan/float-div-by-zero-1.c: New test.
From-SVN: r209927
Diffstat (limited to 'gcc/c')
| -rw-r--r-- | gcc/c/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/c/c-typeck.c | 6 |
2 files changed, 9 insertions, 2 deletions
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog index d54b62e..bf61610 100644 --- a/gcc/c/ChangeLog +++ b/gcc/c/ChangeLog @@ -1,5 +1,10 @@ 2014-04-30 Marek Polacek <polacek@redhat.com> + * c-typeck.c (build_binary_op): Call ubsan_instrument_division + also when SANITIZE_FLOAT_DIVIDE is on. + +2014-04-30 Marek Polacek <polacek@redhat.com> + PR c/60139 * c-typeck.c (output_init_element): Pass OPT_Wpedantic to pedwarn and pedwarn_init. Use loc insted of input_location. diff --git a/gcc/c/c-typeck.c b/gcc/c/c-typeck.c index 6e56b69..cb8ae44 100644 --- a/gcc/c/c-typeck.c +++ b/gcc/c/c-typeck.c @@ -10997,7 +10997,8 @@ build_binary_op (location_t location, enum tree_code code, return error_mark_node; } - if ((flag_sanitize & (SANITIZE_SHIFT | SANITIZE_DIVIDE)) + if ((flag_sanitize & (SANITIZE_SHIFT | SANITIZE_DIVIDE + | SANITIZE_FLOAT_DIVIDE)) && current_function_decl != 0 && !lookup_attribute ("no_sanitize_undefined", DECL_ATTRIBUTES (current_function_decl)) @@ -11008,7 +11009,8 @@ build_binary_op (location_t location, enum tree_code code, op1 = c_save_expr (op1); op0 = c_fully_fold (op0, false, NULL); op1 = c_fully_fold (op1, false, NULL); - if (doing_div_or_mod && (flag_sanitize & SANITIZE_DIVIDE)) + if (doing_div_or_mod && (flag_sanitize & (SANITIZE_DIVIDE + | SANITIZE_FLOAT_DIVIDE))) instrument_expr = ubsan_instrument_division (location, op0, op1); else if (doing_shift && (flag_sanitize & SANITIZE_SHIFT)) instrument_expr = ubsan_instrument_shift (location, code, op0, op1); |