On 07/11/16 11:39, Jakub Jelinek wrote:
> On Mon, Nov 07, 2016 at 11:22:28AM +0300, Maxim Ostapenko wrote:
>> this patch set performs libsanitizer merge from upstream.
>>
>> Patch 1 is the library merge itself.
>>
>> Patch 2 is the reapplied change for SPARC by David S. Miller.
>>
>> Patch 3 changes heuristic for extracting last PC from stack frame for ARM in
>> fast unwind routine. More details can be found here
>> (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61771).
>>
>> Patch 4 replaces Jakub's fix for
>> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63888 and removes
>> CheckODRViolationViaPoisoning call from RegisterGlobal to avoid false
>> positive odr violation reports.
>>
>> Patch 5 combines necessary compiler changes.
>>
>> Patch 6 adds several new tests, backported from upstream.
>>
>> Patch 7 adds support for ASan odr indicators at compiler side.
>>
>> The whole patch set was regtested/bootstrapped/ASan bootstrapped on
>> x86_64-unknown-linux-gnu and i386-unknown-linux-gnu.
>> Also, passed regression tests on arm-linux-gnueabi and aarch64-linux under
>> QEMU.
> So, libasan.so.* is again ABI incompatible, but libtsan and libubsan stay
> (hopefully) backwards ABI compatible?


libubsan is definitely compatible.
For libtsan we have several changes:

1) Several interceptors (34 of them) were added and 
__interceptor_lstat{64} were removed.
2) __interceptor_strchr has change in its parameters type:
__interceptor_strchr(char*, int) -> __interceptor_strchr(const char*, int)
3) tsan's internal type __tsan::ReportDesc has several changes, but it 
seems that this doesn't introduce ABI incompatibility with compiler side.

Full abidiff listing is attached.

So, I suppose libtsan is also compatible.

-Maxim

>
> 	Jakub
>
>
>