| Issue |
52803
|
| Summary |
[asan][bug][windows x86] The compilation option release x86, runtime is: / MD / MT, which is not supported
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
GimerLover
|
In my test, I found that when the compilation option is release x86
Exe: open asan Runtime / MD
DLL: open asan Runtime / MT
When exe actively loadlibrary DLL. Will generate an exception and crash.
However, in the case of release x64, the runtime is normal. I think this is a bug in asan.
Check the source code of Asan. It is found that the problem lies in the initializeshadowmemory function。
source: https://github.com/llvm/llvm-project/blob/main/compiler-rt/lib/asan/asan_shadow_setup.cpp
I found that initializeshadowmemory is called once when / MT and / MD are mixed.
The address space of shadowmemory. If it is divided by offset address,
the addresses are hard coded.
So when / MD calls initializeshadowmemory successfully。
/ MT will fail to call initializeshadowmemory again.
Then abort is triggered. Please confirm that this is in line with expectations？
I think this is a problem.
![]()
_______________________________________________
llvm-bugs mailing list
llvm-bugs@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
