[PATCH] D101122: introduce flag -fsanitize-address-detect-stack-use-after-return-mode. No functional change.

[Joerg Sonnenberger via Phabricator via cfe-commits]

joerg added a comment.

There are two approaches that work for reviewing: starting from clang and going down or starting from compiler-rt and going up the layers. I'd prefer to do the latter as it means meaningful testing can be done easier. There are two natural steps here: clang flag+IR generation is one, llvm codegen and compiler-rt is the other. The clang step should include tests that ensure that proper IR is generated for the different flag combination (including documentation for the IR changes). The LLVM step should ensure that the different attributes (either function or module scope) are correctly lowered in the instrumentation pass and unit tests on the compiler-rt side to do functional testing. The unit testing might also be done as a third step if it goes the full way from C to binary code.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D101122/new/

https://reviews.llvm.org/D101122