[all-commits] [llvm/llvm-project] a1dc97: tsan: remember and print function that installed a...

[Dmitry Vyukov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a1dc97e47231e737e1252d1aeb159764dbaed977
      https://github.com/llvm/llvm-project/commit/a1dc97e47231e737e1252d1aeb159764dbaed977
  Author: Dmitry Vyukov <dvyukov at google.com>
  Date:   2021-11-26 (Fri, 26 Nov 2021)

  Changed paths:
    M compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp
    M compiler-rt/test/tsan/atexit4.cpp
    M compiler-rt/test/tsan/atexit5.cpp
    M compiler-rt/test/tsan/on_exit.cpp

  Log Message:
  -----------
  tsan: remember and print function that installed at_exit callbacks

Sometimes stacks for at_exit callbacks don't include any of the user functions/files.
For example, a race with a global std container destructor will only contain
the container type name and our at_exit_wrapper function. No signs what global variable
this is.
Remember and include in reports the function that installed the at_exit callback.
This should give glues as to what variable is being destroyed.

Depends on D114606.

Reviewed By: vitalybuka, melver

Differential Revision: https://reviews.llvm.org/D114607