[all-commits] [llvm/llvm-project] 81b1d3: [sanitizers][Windows] Implement __sanitizer_purge_...

msft-matthew via All-commits all-commits at lists.llvm.org
Fri Feb 12 09:51:54 PST 2021


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 81b1d3da094c54ffd75e05c8d4683792edf17f4c
      https://github.com/llvm/llvm-project/commit/81b1d3da094c54ffd75e05c8d4683792edf17f4c
  Author: Matthew G McGovern <mamcgove at microsoft.com>
  Date:   2021-02-12 (Fri, 12 Feb 2021)

  Changed paths:
    M compiler-rt/lib/sanitizer_common/sanitizer_allocator_primary64.h
    M compiler-rt/lib/sanitizer_common/sanitizer_win.cpp
    A compiler-rt/test/asan/TestCases/Windows/sanitizer_purge.cpp

  Log Message:
  -----------
  [sanitizers][Windows] Implement __sanitizer_purge_allocator for Win64

    Windows' memory unmapping has to be explicit, there is no madvise.
Similarly, re-mapping memory has to be explicit as well. This patch
implements a basic method for remapping memory which was previously
returned to the OS on Windows.

Patch by Matthew G. McGovern and Jordyn Puryear




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