[llvm-branch-commits] [compiler-rt] 400a02b - [sanitizer] Handle Gentoo's libstdc++ path

[Tom Stellard via llvm-branch-commits]

Author: Sam James
Date: 2024-01-30T15:47:38-08:00
New Revision: 400a02bb281ba0de79211ab53d931e44dd76733f

URL: https://github.com/llvm/llvm-project/commit/400a02bb281ba0de79211ab53d931e44dd76733f
DIFF: https://github.com/llvm/llvm-project/commit/400a02bb281ba0de79211ab53d931e44dd76733f.diff

LOG: [sanitizer] Handle Gentoo's libstdc++ path

On Gentoo, libc++ is indeed in /usr/include/c++/*, but libstdc++ is at
e.g. /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/g++-v14.

Use '/include/g++' as it should be unique enough. Note that the omission of
a trailing slash is intentional to match g++-*.

See https://github.com/llvm/llvm-project/pull/78534#issuecomment-1904145839.

Reviewed by: mgorny
Closes: https://github.com/llvm/llvm-project/pull/79264

Signed-off-by: Sam James <sam at gentoo.org>
(cherry picked from commit e8f882f83acf30d9b4da8846bd26314139660430)

Added: 
    

Modified: 
    compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_report.cpp

Removed: 
    


################################################################################
diff  --git a/compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_report.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_report.cpp
index 8438e019591b5..f6b157c07c655 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_report.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_report.cpp
@@ -34,8 +34,10 @@ static bool FrameIsInternal(const SymbolizedStack *frame) {
     return true;
   const char *file = frame->info.file;
   const char *module = frame->info.module;
+  // On Gentoo, the path is g++-*, so there's *not* a missing /.
   if (file && (internal_strstr(file, "/compiler-rt/lib/") ||
-               internal_strstr(file, "/include/c++/")))
+               internal_strstr(file, "/include/c++/") ||
+               internal_strstr(file, "/include/g++")))
     return true;
   if (module && (internal_strstr(module, "libclang_rt.")))
     return true;