| // Test that we can properly report an ODR violation between an instrumented |
| // global and a non-instrumented global if not using private aliases. |
| |
| // RUN: %clang_asan -fcommon %s -fPIC -shared -mllvm -asan-use-private-alias=0 -o %dynamiclib1 -DFILE1 |
| // RUN: %clang_asan -fcommon %s -fPIC -shared -mllvm -asan-use-private-alias=0 -o %dynamiclib2 -DFILE2 |
| // RUN: %clang_asan -fcommon %s -fPIE %ld_flags_rpath_exe1 %ld_flags_rpath_exe2 -o %t |
| // RUN: not %run %t 2>&1 | FileCheck %s |
| |
| // RUN: %clang_asan -fcommon %s -fPIC -shared -mllvm -asan-use-private-alias=1 -o %dynamiclib1 -DFILE1 |
| // RUN: %clang_asan -fcommon %s -fPIC -shared -mllvm -asan-use-private-alias=1 -o %dynamiclib2 -DFILE2 |
| // RUN: %run %t 2>&1 | count 0 |
| |
| // CHECK: The following global variable is not properly aligned. |
| // CHECK: ERROR: AddressSanitizer: odr-violation |
| #if defined(FILE1) |
| __attribute__((aligned(8))) int x; |
| __attribute__((aligned(1))) char y; |
| // The gold linker puts ZZZ at the start of bss (where it is aligned) |
| // unless we have a large alternative like Displace: |
| __attribute__((aligned(1))) char Displace[105]; |
| __attribute__((aligned(1))) char ZZZ[100]; |
| #elif defined(FILE2) |
| int ZZZ = 1; |
| #else |
| extern int ZZZ; |
| int main() { |
| return ZZZ; |
| } |
| #endif |
| |
