Re: How to use AddressSanitizer with Wine? (80% PE approach)

Am 06.05.25 um 14:49 schrieb Bernhard Übelacker:
> Am 28.04.25 um 06:44 schrieb Alex Henrie:
>> On Sat, Apr 26, 2025 at 4:36 PM Bernhard Übelacker
>> <[email protected]> wrote:
>>
>>> For enabling ASan(PE) I collected some "notes to myself", which I hope
>>> are enough accurate to enable someone else to reproduce the results.
>>
>>> [6] https://gitlab.winehq.org/bernhardu/wine/-/blob/asan- 
>>> pe_2025-04-05_wine-10.6/README-ASan.md?ref_type=heads
>>
>> Thank you for sharing! Goodness, it's a lot more complicated than I
>> had hoped. Notwithstanding the difficulty, following your instructions
>> closely I was able to build and run Wine with the llvm-mingw AUR
>> package.[1] My LLVM variables look like this:
>>
>> export LLVM_INST_PATH=/opt/llvm-mingw
>> export x86_64_LLVM_CLANG_RT_LIB=$(find $LLVM_INST_PATH -name
>> libclang_rt.asan_dynamic-x86_64.dll.a)
>> export i386_LLVM_CLANG_RT_LIB=$(find $LLVM_INST_PATH -name
>> libclang_rt.asan_dynamic-i386.dll.a)
>>
>> For my own sanity, I created scripts named configure64.sh, build64.sh,
>> configure32.sh, build32.sh, and run.sh for the various steps of the
>> instructions. I think it would be a lot easier to use your ASan branch
>> if the commands were already in scripts.
>>
>>> Unfortunately I have one patch with LLVM still in progress,
>>> therefore a self-built LLVM would be needed, to build wine.
>>> But this is just needed for HEAP_REALLOC_IN_PLACE_ONLY re-allocations,
>>> and running with "windows_hook_rtl_allocators=0" should not be 
>>> affected by this,
>>> and that way building wine from the plain nightly llvm-mingw package 
>>> should work.
>>
>> Could you note that in the README please? Upstream llvm-mingw combined
>> with windows_hook_rtl_allocators=1 resulted in the cryptic error
>> "wine: could not load kernel32.dll, status c0000135" when trying to
>> initialize and use the Wine prefix.
>>
>> I ran a few parts of the Wine test suite and I've submitted my first
>> patch based on the results.[2] Furthermore, since the instructions in
>> the wiki were outdated and nonfunctional, I've replaced them with a
>> link to your repository.[3] Thanks very much for all the work you put
>> into it!
>>
>> -Alex
>>
>> [1] https://aur.archlinux.org/packages/llvm-mingw
>> [2] https://gitlab.winehq.org/wine/wine/-/merge_requests/7925
>> [3] https://gitlab.winehq.org/wine/wine/-/wikis/Building-Wine#memory-- 
>> address-checkers
> 
> 
> Hello Alex,
> thanks for testing and fixing found issues.
> I missed also in the readme I am using currently a new-style-wow64 
> configure.
> Unfortunately I did not get around to put those parts into scripts.
> However, I rebased to current release
> and new test runs are in the asan_reports_x86(_64) subdirectories.
> 
> https://gitlab.winehq.org/bernhardu/wine/-/tree/asan- 
> pe_2025-04-26_wine-10.7?ref_type=heads
> 
> Kind regards,
> Bernhard


Hello,
I rebased the current state of the this ASan experiment here [1].

Results of running the conformance tests can be found in [2] [3].

[1] https://gitlab.winehq.org/bernhardu/wine/-/tree/asan-pe_2025-05-06_wine-10.8?ref_type=heads
[2] https://gitlab.winehq.org/bernhardu/wine/-/tree/asan-pe_2025-05-06_wine-10.8/asan_reports_x86_64?ref_type=heads
[3] https://gitlab.winehq.org/bernhardu/wine/-/tree/asan-pe_2025-05-06_wine-10.8/asan_reports_x86?ref_type=heads

Kind regards,
Bernhard