| // Test to make sure basic initialization order errors are caught. |
| // Check that on Linux initialization order bugs are caught |
| // independently on order in which we list source files (if we specify |
| // strict init-order checking). |
| |
| // RUN: %clangxx_asan -O0 %s %p/../Helpers/initialization-bug-extra.cc -o %t |
| // RUN: %env_asan_opts=strict_init_order=true not %run %t 2>&1 | FileCheck %s |
| // RUN: %clangxx_asan -O0 %p/../Helpers/initialization-bug-extra.cc %s -o %t |
| // RUN: %env_asan_opts=strict_init_order=true not %run %t 2>&1 | FileCheck %s |
| |
| // Do not test with optimization -- the error may be optimized away. |
| |
| #include <cstdio> |
| |
| // 'y' is a dynamically initialized global residing in a different TU. This |
| // dynamic initializer will read the value of 'y' before main starts. The |
| // result is undefined behavior, which should be caught by initialization order |
| // checking. |
| extern int y; |
| int __attribute__((noinline)) initX() { |
| return y + 1; |
| // CHECK: {{AddressSanitizer: initialization-order-fiasco}} |
| // CHECK: {{READ of size .* at 0x.* thread T0}} |
| // CHECK: {{#0 0x.* in .*initX.* .*initialization-bug-any-order.cc:}}[[@LINE-3]] |
| // CHECK: {{0x.* is located 0 bytes inside of global variable .*y.*}} |
| } |
| |
| // This initializer begins our initialization order problems. |
| static int x = initX(); |
| |
| int main() { |
| // ASan should have caused an exit before main runs. |
| printf("PASS\n"); |
| // CHECK-NOT: PASS |
| return 0; |
| } |
