[Bug 49828] MSVC 2019 32-bit executables with ASAN enabled fail to start when Wine is built with LLVM MinGW due to missing hotpatch prolog (kernelbase.dll exports et al.)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49828

Anastasius Focht <focht at gmx.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|MSVC 2019 executables with  |MSVC 2019 32-bit
                   |ASAN enabled fail to start  |executables with ASAN
                   |                            |enabled fail to start when
                   |                            |Wine is built with LLVM
                   |                            |MinGW due to missing
                   |                            |hotpatch prolog
                   |                            |(kernelbase.dll exports et
                   |                            |al.)

--- Comment #5 from Anastasius Focht <focht at gmx.net> ---
Hello folks,

@Jacek comment #3

--- quote ---
If you have llvm-mingw installed, then it will be used by consigure to build
Wine with mingw target. To force MSVC target, you may use something like:
configure CROSSCC=clang
(it may still use clang shipped with llvm-mingw, just in a different way)
--- quote ---

It didn't work for me, clean build but the API entry still doesn't start with
the 2-byte instruction.

I'm using Martin's 20211002 release with LLVM stable 13.0.0

https://github.com/mstorsjo/llvm-mingw/releases/tag/20211002

https://github.com/mstorsjo/llvm-mingw/releases/download/20211002/llvm-mingw-20211002-ucrt-ubuntu-18.04-x86_64.tar.xz

'config.log'

--- snip ---
CROSSCC='clang'
CROSSCFLAGS='-g -O2'
CROSSDEBUG='pdb'
...
CROSSTARGET='i686-windows'
--- snip ---

@Roman comment #4

I've adjusted the title to be more clear. Sure, there could be more bug reports
for each of the issues:

(1) Make 'MSVC' mode default in Wine when LLVM MinGW is used (this one?).

(2) Add a bunch of missing instruction decodings to improve ASAN hooking (from
bug 50993 and bug 49828 = this one) -> track upsteam project with it and
resolve 'NOT OUR BUG' later.

(3) Fixing specific Wine API to add missing hotpatch decoration = bug 50993?

(4) Bug 50993 add link to bug 50735 because one of the issues mentioned was
fixed there ("ntdll: Don't pretend that the whole address space is reserved on
non-i386.").

Regards

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