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| author | Alex Shlyapnikov <alekseys@google.com> | 2018-03-23 17:57:54 +0000 |
|---|---|---|
| committer | Alex Shlyapnikov <alekseys@google.com> | 2018-03-23 17:57:54 +0000 |
| commit | 83e78414192f2270473b8d54e737b8b9f2af0477 (patch) | |
| tree | eabbc9dceadfa9a19876afb7a20b53a9b8e76bb8 /llvm/lib/DebugInfo/CodeView/DebugStringTableSubsection.cpp | |
| parent | 41573804f278a6ff3bbc43217c6d4b3bb415df73 (diff) | |
| download | llvm-83e78414192f2270473b8d54e737b8b9f2af0477.zip llvm-83e78414192f2270473b8d54e737b8b9f2af0477.tar.gz llvm-83e78414192f2270473b8d54e737b8b9f2af0477.tar.bz2 | |
[HWASan] Port HWASan to Linux x86-64 (LLVM)
Summary:
Porting HWASan to Linux x86-64, first of the three patches, LLVM part.
The approach is similar to ARM case, trap signal is used to communicate
memory tag check failure. int3 instruction is used to generate a signal,
access parameters are stored in nop [eax + offset] instruction immediately
following the int3 one.
One notable difference is that x86-64 has to untag the pointer before use
due to the lack of feature comparable to ARM's TBI (Top Byte Ignore).
Reviewers: eugenis
Subscribers: kristof.beyls, llvm-commits
Differential Revision: https://reviews.llvm.org/D44699
llvm-svn: 328342
Diffstat (limited to 'llvm/lib/DebugInfo/CodeView/DebugStringTableSubsection.cpp')
0 files changed, 0 insertions, 0 deletions