Open ygribov opened 8 years ago
ASan changes size of global variables by appending redzone size to it. This may cause runtime errors when/if other shared modules have been linked against non-sanitized version of the library.
Here is an example:
$ cat tmp.c char xxx = 0; $ clang tmp.c -shared -fPIC $ readelf -sDW a.out | grep xxx 8 0: 0000000000201034 1 OBJECT GLOBAL DEFAULT 21 xxx $ clang tmp.c -shared -fPIC -fsanitize=address $ readelf -sDW a.out | grep xxx 11 0: 00000000002010a0 64 OBJECT GLOBAL DEFAULT 23 xxx
So perhaps we could come up with a less invasive way to fix sanitization of globals on Mac?
ASan changes size of global variables by appending redzone size to it.
Forgot to mention that this means ABI change.
None of us is working on it right now. Suggestions/patches are welcome.
ASan changes size of global variables by appending redzone size to it. This may cause runtime errors when/if other shared modules have been linked against non-sanitized version of the library.
Here is an example:
So perhaps we could come up with a less invasive way to fix sanitization of globals on Mac?