[PATCH] D137992: [asan] -fsanitize-address-outline-instrumentation -> -asan-max-inline-poisoning-size=0

[Roy Sundahl via Phabricator via cfe-commits]

rsundahl created this revision.
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rsundahl requested review of this revision.
Herald added subscribers: cfe-commits, MaskRay.
Herald added a project: clang.

The clang flag -fsanitize-address-outline-instrumentation should not only pass
-asan-instrumentation-with-call-threshold=0 to the sanitizer, but should also
pass -asan-max-inline-poisoning-size=0. Both flags' cutoff values need to be set
to zero to suppress inlining in favor of making calls into compiler-rt.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D137992

Files:
  clang/lib/Driver/SanitizerArgs.cpp


Index: clang/lib/Driver/SanitizerArgs.cpp
===================================================================
--- clang/lib/Driver/SanitizerArgs.cpp
+++ clang/lib/Driver/SanitizerArgs.cpp
@@ -1256,6 +1256,9 @@
   if (AsanOutlineInstrumentation) {
     CmdArgs.push_back("-mllvm");
     CmdArgs.push_back("-asan-instrumentation-with-call-threshold=0");
+    CmdArgs.push_back("-mllvm");
+    CmdArgs.push_back("-asan-max-inline-poisoning-size=0");
+
   }
 
   // Only pass the option to the frontend if the user requested,


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