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| author | thetruestblue <92476612+thetruestblue@users.noreply.github.com> | 2024-10-16 21:52:38 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-10-16 21:52:38 -0700 |
| commit | 927af63fddb8e34f23b2974f812156767988ec5f (patch) | |
| tree | 325cb61c5f9afc38320fc877b76b623eb97909f4 /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | 81bbe19383797d5daaa5ddd16a47cd6ff44b66e2 (diff) | |
| download | llvm-927af63fddb8e34f23b2974f812156767988ec5f.zip llvm-927af63fddb8e34f23b2974f812156767988ec5f.tar.gz llvm-927af63fddb8e34f23b2974f812156767988ec5f.tar.bz2 | |
[SanitizerCoverage] Add an option to gate the invocation of the tracing callbacks (#108328)
Implement -sanitizer-coverage-gated-trace-callbacks to gate the
invocation of the tracing callbacks based on the value of a global
variable, which is stored in a specific section.
When this option is enabled, the instrumentation will not call into the
runtime-provided callbacks for tracing, thus only incurring in a trivial
branch without going through a function call. It is up to the runtime to
toggle the value of the global variable in order to enable tracing.
This option is only supported for trace-pc-guard.
Note: will add additional support for trace-cmp in a follow up PR.
Patch by Filippo Bigarella
rdar://101626834
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
0 files changed, 0 insertions, 0 deletions