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| author | Fangrui Song <maskray@google.com> | 2020-07-24 00:23:46 -0700 |
|---|---|---|
| committer | Fangrui Song <maskray@google.com> | 2020-07-24 00:24:46 -0700 |
| commit | f7ffb122d08e7a8203557898c67eaac3a857b152 (patch) | |
| tree | a8258ccf697473b389dbd5f84e7802b1071abb2d /llvm/lib/CodeGen/AsmPrinter/DebugHandlerBase.cpp | |
| parent | 99d03f03919498b688a8921b2ec669057772803f (diff) | |
| download | llvm-f7ffb122d08e7a8203557898c67eaac3a857b152.zip llvm-f7ffb122d08e7a8203557898c67eaac3a857b152.tar.gz llvm-f7ffb122d08e7a8203557898c67eaac3a857b152.tar.bz2 | |
[libFuzzer] Instrument bcmp
If we define memcmp in an archive, bcmp should be defined as well (many libc
define bcmp/memcmp in one object file). Otherwise if the application calls bcmp
or strcmp which gets optimized to bcmp (SimplifyLibCalls), the undefined
reference may pull in an optimized bcmp/strcmp implementation (libc replacement)
later on the linker command line. If both libFuzzer's memcmp and the optimized
memcmp are strong => there will be a multiple definition error.
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter/DebugHandlerBase.cpp')
0 files changed, 0 insertions, 0 deletions