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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2019-01-08 01:07:34 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2019-01-08 01:07:34 +0000 |
| commit | 726dd54e7c60bc1d3e39f200dbae537c7d3cc612 (patch) | |
| tree | a895a730c2ad9bec44ea51ac39e67e523c0fb5a0 /lib/sanitizer_common/sanitizer_procmaps.h | |
| parent | 8ebc3668b07fc5cca6010265cd4795443f1c1bea (diff) | |
| download | compiler-rt-726dd54e7c60bc1d3e39f200dbae537c7d3cc612.tar.gz | |
[asan] Support running without /proc
Summary:
This patch lets ASan run when /proc is not accessible (ex. not mounted
yet). It includes a special test-only flag that emulates this condition
in an unpriviledged process.
This only matters on Linux, where /proc is necessary to enumerate
virtual memory mappings.
Reviewers: vitalybuka, pcc, krytarowski
Subscribers: kubamracek, llvm-commits
Differential Revision: https://reviews.llvm.org/D56141
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@350590 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/sanitizer_common/sanitizer_procmaps.h')
| -rw-r--r-- | lib/sanitizer_common/sanitizer_procmaps.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/sanitizer_common/sanitizer_procmaps.h b/lib/sanitizer_common/sanitizer_procmaps.h index 9fde040a1..acb7104f3 100644 --- a/lib/sanitizer_common/sanitizer_procmaps.h +++ b/lib/sanitizer_common/sanitizer_procmaps.h @@ -70,6 +70,7 @@ class MemoryMappingLayout { explicit MemoryMappingLayout(bool cache_enabled); ~MemoryMappingLayout(); bool Next(MemoryMappedSegment *segment); + bool Error() const; void Reset(); // In some cases, e.g. when running under a sandbox on Linux, ASan is unable // to obtain the memory mappings. It should fall back to pre-cached data |