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Diffstat (limited to 'clang/docs/SanitizerCoverage.rst')
| -rw-r--r-- | clang/docs/SanitizerCoverage.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/clang/docs/SanitizerCoverage.rst b/clang/docs/SanitizerCoverage.rst index c5c50a5dd96..c7cd853dd66 100644 --- a/clang/docs/SanitizerCoverage.rst +++ b/clang/docs/SanitizerCoverage.rst @@ -144,6 +144,11 @@ PC-Table **Experimental, may change or disappear in future** +**Note:** this instrumentation might be incompatible with dead code stripping +(``-Wl,-gc-sections``) for linkers other than LLD, thus resulting in a +significant binary size overhead. For more information, see +`Bug 34636 <https://bugs.llvm.org/show_bug.cgi?id=34636>`_. + With ``-fsanitize-coverage=pc-table`` the compiler will create a table of instrumented PCs. Requires either ``-fsanitize-coverage=inline-8bit-counters`` or ``-fsanitize-coverage=trace-pc-guard``. |
