1 // RUN: %clangxx -fsanitize=integer -g0 %s -o %t
2
3 // Suppression by symbol name (unsigned-integer-overflow:do_overflow below)
4 // requires the compiler-rt runtime to be able to symbolize stack addresses.
5 // REQUIRES: can-symbolize
6 // UNSUPPORTED: android
7 // Output differs on OpenBSD longer by displaying the values.
8 // XFAIL: openbsd
9
10 // Fails without any suppression.
11 // RUN: %env_ubsan_opts=halt_on_error=1 not %run %t 2>&1 | FileCheck %s
12
13 // RUN: echo "signed-integer-overflow:%t" > %t.wrong-supp
14 // RUN: %env_ubsan_opts=halt_on_error=1:suppressions='"%t.wrong-supp"' not %run %t 2>&1 | FileCheck %s
15
16 // RUN: echo "unsigned-integer-overflow:do_overflow" > %t.func-supp
17 // RUN: %env_ubsan_opts=halt_on_error=1:suppressions='"%t.func-supp"' %run %t
18 // FIXME: The '%t' substitution can't be used for the module name because it
19 // contains a colon, so we have to use the basename, which is
20 // suppressions.cpp.tmp.
21 // RUN: echo "unsigned-integer-overflow:suppressions.cpp.tmp" > %t.module-supp
22 // RUN: %env_ubsan_opts=halt_on_error=1:suppressions='"%t.module-supp"' %run %t
23
24 // Note: file-level suppressions should work even without debug info.
25 // RUN: echo "unsigned-integer-overflow:%s" > %t.file-supp
26 // RUN: %env_ubsan_opts=halt_on_error=1:suppressions='"%t.file-supp"' %run %t
27
28 // Suppressions don't work for unrecoverable kinds.
29 // RUN: %clangxx -fsanitize=integer -fno-sanitize-recover=integer %s -o %t-norecover
30 // RUN: %env_ubsan_opts=halt_on_error=1:suppressions='"%t.module-supp"' not %run %t-norecover 2>&1 | FileCheck %s
31
32 #include <stdint.h>
33
do_overflow()34 extern "C" void do_overflow() {
35 (void)(uint64_t(10000000000000000000ull) + uint64_t(9000000000000000000ull));
36 // CHECK: runtime error: unsigned integer overflow
37 }
38
main()39 int main() {
40 do_overflow();
41 return 0;
42 }
43