[PATCH] D91608: [sanitizer_common][test] Enable tests on SPARC

[Rainer Orth via Phabricator via llvm-commits]

ro created this revision.
ro added a reviewer: vitalybuka.
ro added a project: Sanitizers.
Herald added subscribers: Sanitizers, pengfei, s.egerton, simoncook, fedor.sergeev, mgorny, jyknight.
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Unfortunately, the `sanitizer_common` tests are disabled on many targets that are supported by `sanitizer_common`, making it easy to miss issues with that support.  This patch enables SPARC testing.

Beside the enabling proper, the patch fixes (together with D91607 <https://reviews.llvm.org/D91607>) the failures of the `symbolize_pc.cpp` and `symbolize_pc_inline.cpp` tests.  Those tests `PASS` when compiled with `gcc`, which happens because `clang` incorrectly doesn't implement a non-default `__builtin_extract_return_addr` on several targets, SPARC included.

Because `__builtin_extract_return_addr(__builtin_return_addr(0))` is quite a mouthful and I'm uncertain if the code needs to compile with msvc which appparently has it's own `_ReturnAddres`, I've introduced `__sanitizer_return_addr` to hide the difference and complexity.  Because on 32-bit SPARC `__builtin_extract_return_addr` differs when the calling funtion returns a struct, I've added a testcase for that.

There are a couple more tests failing on SPARC that I will deal with separately.

Tested on `sparcv9-sun-solaris2.11`, `amd64-pc-solaris2.11`, and `x86_64-pc-linux-gnu`.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D91608

Files:
  compiler-rt/include/sanitizer/common_interface_defs.h
  compiler-rt/lib/sanitizer_common/tests/CMakeLists.txt
  compiler-rt/test/sanitizer_common/TestCases/symbolize_pc.cpp
  compiler-rt/test/sanitizer_common/TestCases/symbolize_pc_inline.cpp

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