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| author | Jianzhou Zhao <jianzhouzh@google.com> | 2021-02-12 00:29:58 +0000 |
|---|---|---|
| committer | Jianzhou Zhao <jianzhouzh@google.com> | 2021-02-18 17:48:20 +0000 |
| commit | 063a6fa87ece8a452daba99df7fb99751ed10165 (patch) | |
| tree | c1130f113658e9fe41df562a533897484b0fde39 /libcxx/src/filesystem/operations.cpp | |
| parent | 1b8d2ec07142d3517c0236064b1b8d281319b02a (diff) | |
| download | llvm-063a6fa87ece8a452daba99df7fb99751ed10165.zip llvm-063a6fa87ece8a452daba99df7fb99751ed10165.tar.gz llvm-063a6fa87ece8a452daba99df7fb99751ed10165.tar.bz2 | |
[dfsan] Add origin tls/move/read APIs
This is a part of https://reviews.llvm.org/D95835.
Added
1) TLS storage
2) a weak global used to set by instrumented code
3) move origins
These APIs are similar to MSan's APIs
https://github.com/llvm/llvm-project/blob/main/compiler-rt/lib/msan/msan_poisoning.cpp
We first improved MSan's by https://reviews.llvm.org/D94572 and https://reviews.llvm.org/D94552.
So the correctness has been verified by MSan.
After the DFSan instrument code is ready, we wil be adding more test
cases
4) read
To reduce origin tracking cost, some of the read APIs return only
the origin from the first taint data.
Note that we did not add origin set APIs here because they are related
to code instrumentation, will be added later with IR transformation
code.
Reviewed-by: morehouse
Differential Revision: https://reviews.llvm.org/D96564
Diffstat (limited to 'libcxx/src/filesystem/operations.cpp')
0 files changed, 0 insertions, 0 deletions