[PATCH] D94210: [ASan] Stop blocking child thread progress from parent thread in `pthread_create` interceptor.

[Vitaly Buka via Phabricator via llvm-commits]

vitalybuka added inline comments.


================
Comment at: compiler-rt/lib/asan/asan_interceptors.cpp:220
+    //
+    // We set a flag to tell the child thread if it should unignore the object.
+    // We should not try to unignore the object if `kIgnoreObjectAlreadyIgnored`
----------------
probably too artificial but looks like will be broken

```
p = new char;
pthread_create(... p)
delete p;  // we know that thread is not going to use it
... 

p = new char; // unrelated allocation
Ingore(p)
```

could be simple and more reliable to change leak sanitizer to walk through all alive threads and include thread->arg_ into frontier?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D94210/new/

https://reviews.llvm.org/D94210