[Openmp-commits] [PATCH] D132676: [libomptarget] Avoid double-frees and user-after-frees of entries

[Guilherme Valarini via Phabricator via Openmp-commits]

gValarini created this revision.
gValarini added reviewers: jdoerfert, ye-luo.
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The current mechanism using TIDs to delegate a map entry
ownership/deletion-responsibility during data ends can lead to
double-free and user-after-free problems. By tracking the threads that
uses the same entry on the targetDataEnd, we can delay the entry
deletion to be done by the last thread that leaves the targetDataEnd,
ensuring no double-free/user-after-free problems may occur.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D132676

Files:
  openmp/libomptarget/include/ExclusiveAccess.h
  openmp/libomptarget/include/device.h
  openmp/libomptarget/src/device.cpp
  openmp/libomptarget/src/omptarget.cpp

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