diff options
| author | Matt Morehouse <mascasa@google.com> | 2017-08-18 18:43:30 +0000 |
|---|---|---|
| committer | Matt Morehouse <mascasa@google.com> | 2017-08-18 18:43:30 +0000 |
| commit | b2b075cecbf00cc6cb9a4ba3055d5404e1994e16 (patch) | |
| tree | 479b9bae47703cf77f3ebd0507e9a33c24dcf466 /include/clang/Frontend/CodeGenOptions.def | |
| parent | ea3d2bfb45fcdf01672ad827d949e99257242924 (diff) | |
[SanitizerCoverage] Add stack depth tracing instrumentation.
Summary:
Augment SanitizerCoverage to insert maximum stack depth tracing for
use by libFuzzer. The new instrumentation is enabled by the flag
-fsanitize-coverage=stack-depth and is compatible with the existing
trace-pc-guard coverage. The user must also declare the following
global variable in their code:
thread_local uintptr_t __sancov_lowest_stack
https://bugs.llvm.org/show_bug.cgi?id=33857
Reviewers: vitalybuka, kcc
Reviewed By: vitalybuka
Subscribers: kubamracek, hiraditya, cfe-commits, llvm-commits
Differential Revision: https://reviews.llvm.org/D36839
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@311186 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/Frontend/CodeGenOptions.def')
| -rw-r--r-- | include/clang/Frontend/CodeGenOptions.def | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/clang/Frontend/CodeGenOptions.def b/include/clang/Frontend/CodeGenOptions.def index ec40ca11ed..6a866fe507 100644 --- a/include/clang/Frontend/CodeGenOptions.def +++ b/include/clang/Frontend/CodeGenOptions.def @@ -169,6 +169,7 @@ CODEGENOPT(SanitizeCoverageTracePCGuard, 1, 0) ///< Enable PC tracing with guard CODEGENOPT(SanitizeCoverageInline8bitCounters, 1, 0) ///< Use inline 8bit counters. CODEGENOPT(SanitizeCoveragePCTable, 1, 0) ///< Create a PC Table. CODEGENOPT(SanitizeCoverageNoPrune, 1, 0) ///< Disable coverage pruning. +CODEGENOPT(SanitizeCoverageStackDepth, 1, 0) ///< Enable max stack depth tracing CODEGENOPT(SanitizeStats , 1, 0) ///< Collect statistics for sanitizers. CODEGENOPT(SimplifyLibCalls , 1, 1) ///< Set when -fbuiltin is enabled. CODEGENOPT(SoftFloat , 1, 0) ///< -soft-float. |