diff options
| author | Matt Morehouse <mascasa@google.com> | 2017-08-29 19:48:12 +0000 |
|---|---|---|
| committer | Matt Morehouse <mascasa@google.com> | 2017-08-29 19:48:12 +0000 |
| commit | 79654fd7716284ec881606e177a409608e8c4ede (patch) | |
| tree | a67e6c9583ed4459ed5f78ed783f48f04e640a9c /lib/sanitizer_common/sanitizer_coverage_libcdep_new.cc | |
| parent | fedf302bebe6d9e3f819d5a2492b45953ec10e90 (diff) | |
[SanitizeCoverage] Enable stack-depth coverage for -fsanitize=fuzzer
Summary:
- Don't sanitize __sancov_lowest_stack.
- Don't instrument leaf functions.
- Add CoverageStackDepth to Fuzzer and FuzzerNoLink.
- Disable stack depth tracking on Mac.
Reviewers: vitalybuka, kcc, george.karpenkov
Reviewed By: kcc
Subscribers: kubamracek, cfe-commits, llvm-commits, hiraditya
Differential Revision: https://reviews.llvm.org/D37156
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@312026 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/sanitizer_common/sanitizer_coverage_libcdep_new.cc')
| -rw-r--r-- | lib/sanitizer_common/sanitizer_coverage_libcdep_new.cc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cc b/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cc index 469656766..3c5f29b28 100644 --- a/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cc +++ b/lib/sanitizer_common/sanitizer_coverage_libcdep_new.cc @@ -211,5 +211,10 @@ SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_cov_trace_pc_indir, void) {} SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_cov_8bit_counters_init, void) {} SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_cov_pcs_init, void) {} } // extern "C" +// Weak definition for code instrumented with -fsanitize-coverage=stack-depth +// and later linked with code containing a strong definition. +// E.g., -fsanitize=fuzzer-no-link +SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE +SANITIZER_TLS_INITIAL_EXEC_ATTRIBUTE uptr __sancov_lowest_stack; #endif // !SANITIZER_FUCHSIA |