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| author | Matt Morehouse <mascasa@google.com> | 2017-08-22 21:28:29 +0000 |
|---|---|---|
| committer | Matt Morehouse <mascasa@google.com> | 2017-08-22 21:28:29 +0000 |
| commit | b1fa8255dbedb70e57d3a55464e011b63a891cb6 (patch) | |
| tree | 34287c7f406eceff3adc4947dbe3b33488810cda /compiler-rt/lib/fuzzer/FuzzerTracePC.cpp | |
| parent | 0c4c2ce0b0c4311f97396f52e7fb7f5ee5b8ce01 (diff) | |
| download | bcm5719-llvm-b1fa8255dbedb70e57d3a55464e011b63a891cb6.tar.gz bcm5719-llvm-b1fa8255dbedb70e57d3a55464e011b63a891cb6.zip | |
[SanitizerCoverage] Optimize stack-depth instrumentation.
Summary:
Use the initialexec TLS type and eliminate calls to the TLS
wrapper. Fixes the sanitizer-x86_64-linux-fuzzer bot failure.
Reviewers: vitalybuka, kcc
Reviewed By: kcc
Subscribers: hiraditya, llvm-commits
Differential Revision: https://reviews.llvm.org/D37026
llvm-svn: 311490
Diffstat (limited to 'compiler-rt/lib/fuzzer/FuzzerTracePC.cpp')
| -rw-r--r-- | compiler-rt/lib/fuzzer/FuzzerTracePC.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp b/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp index 985649a803b..6513b4f64b6 100644 --- a/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp +++ b/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp @@ -32,7 +32,8 @@ ATTRIBUTE_INTERFACE uintptr_t __sancov_trace_pc_pcs[fuzzer::TracePC::kNumPCs]; // Used by -fsanitize-coverage=stack-depth to track stack depth -ATTRIBUTE_INTERFACE thread_local uintptr_t __sancov_lowest_stack; +ATTRIBUTE_INTERFACE __attribute__((tls_model("initial-exec"))) +thread_local uintptr_t __sancov_lowest_stack; namespace fuzzer { |
