[libc] [llvm] [libc] Configure CMAKE_REQUIRED_FLAGS so the GPU can use flag checks (PR #95424)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Tue Jun 25 05:27:03 PDT 2024 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-arm-ubuntu` running on `linaro-lldb-arm-ubuntu` while building `libc,llvm` at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/18/builds/496

Here is the relevant piece of the build log for the reference:
```
Step 6 (test) failure: build (failure)
...
PASS: lldb-api :: functionalities/data-formatter/custom-printf-summary/TestCustomSummaryLLVMFormat.py (331 of 2736)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-caching/TestDataFormatterCaching.py (332 of 2736)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-advanced/TestDataFormatterAdv.py (333 of 2736)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-categories/TestDataFormatterCategories.py (334 of 2736)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-disabling/TestDataFormatterDisabling.py (335 of 2736)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-enum-format/TestDataFormatterEnumFormat.py (336 of 2736)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-cpp/TestDataFormatterCpp.py (337 of 2736)
UNSUPPORTED: lldb-api :: functionalities/data-formatter/data-formatter-objc/TestDataFormatterObjCCF.py (338 of 2736)
PASS: lldb-api :: functionalities/data-formatter/data-formatter-globals/TestDataFormatterGlobals.py (339 of 2736)
UNRESOLVED: lldb-api :: functionalities/completion/TestCompletion.py (340 of 2736)
******************** TEST 'lldb-api :: functionalities/completion/TestCompletion.py' FAILED ********************
Script:
--
/usr/bin/python3.8 /home/tcwg-buildbot/worker/lldb-arm-ubuntu/llvm-project/lldb/test/API/dotest.py -u CXXFLAGS -u CFLAGS --env ARCHIVER=/usr/local/bin/llvm-ar --env OBJCOPY=/usr/bin/llvm-objcopy --env LLVM_LIBS_DIR=/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./lib --env LLVM_INCLUDE_DIR=/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/include --env LLVM_TOOLS_DIR=/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./bin --arch armv8l --build-dir /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lldb-test-build.noindex --lldb-module-cache-dir /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lldb-test-build.noindex/module-cache-lldb/lldb-api --clang-module-cache-dir /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lldb-test-build.noindex/module-cache-clang/lldb-api --executable /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./bin/lldb --compiler /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./bin/clang --dsymutil /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./bin/dsymutil --llvm-tools-dir /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./bin --lldb-obj-root /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/tools/lldb --lldb-libs-dir /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./lib /home/tcwg-buildbot/worker/lldb-arm-ubuntu/llvm-project/lldb/test/API/functionalities/completion -p TestCompletion.py
--
Exit Code: -11

Command Output (stdout):
--
lldb version 19.0.0git (https://github.com/llvm/llvm-project.git revision 6c9916d0d8a40034c5e0dfc157f146855e42520e)
  clang revision 6c9916d0d8a40034c5e0dfc157f146855e42520e
  llvm revision 6c9916d0d8a40034c5e0dfc157f146855e42520e

--
Command Output (stderr):
--
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
 #0 0xeda49934 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-arm-linux-gnueabihf.so+0xf82934)
 #1 0xeda47354 llvm::sys::RunSignalHandlers() (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-arm-linux-gnueabihf.so+0xf80354)
 #2 0xeda4a1cc SignalHandler(int) (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-arm-linux-gnueabihf.so+0xf831cc)
 #3 0xf7bda530 __default_sa_restorer /build/glibc-tftl1u/glibc-2.31/signal/../sysdeps/unix/sysv/linux/arm/sigrestorer.S:67:0
 #4 0xed524058 lldb_private::Broadcaster::BroadcasterImpl::GetListeners(unsigned int, bool) (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-arm-linux-gnueabihf.so+0xa5d058)
 #5 0xed525bd4 lldb_private::Broadcaster::BroadcasterImpl::PrivateBroadcastEvent(std::shared_ptr<lldb_private::Event>&, bool) (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-arm-linux-gnueabihf.so+0xa5ebd4)
 #6 0xed5261e0 lldb_private::Broadcaster::BroadcasterImpl::BroadcastEvent(unsigned int) (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-arm-linux-gnueabihf.so+0xa5f1e0)
 #7 0xed283cac lldb_private::ThreadedCommunication::ReadThread() (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-arm-linux-gnueabihf.so+0x7bccac)
 #8 0xed2844b4 std::_Function_handler<void* (), lldb_private::ThreadedCommunication::StartReadThread(lldb_private::Status*)::$_0>::_M_invoke(std::_Any_data const&) (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-arm-linux-gnueabihf.so+0x7bd4b4)
 #9 0xed3284d8 lldb_private::HostNativeThreadBase::ThreadCreateTrampoline(void*) (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lib/python3.8/site-packages/lldb/_lldb.cpython-38-arm-linux-gnueabihf.so+0x8614d8)
Fatal Python error: Segmentation fault

Thread 0xf7ccc310 (most recent call first):
  File "/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lib/python3.8/site-packages/lldb/__init__.py", line 9378 in Kill
  File "/home/tcwg-buildbot/worker/lldb-arm-ubuntu/llvm-project/lldb/packages/Python/lldbsuite/test/lldbtest.py", line 1672 in invoke
  File "/home/tcwg-buildbot/worker/lldb-arm-ubuntu/llvm-project/lldb/packages/Python/lldbsuite/test/lldbtest.py", line 2008 in tearDown
  File "/usr/lib/python3.8/unittest/case.py", line 636 in _callTearDown
  File "/usr/lib/python3.8/unittest/case.py", line 679 in run
  File "/usr/lib/python3.8/unittest/case.py", line 736 in __call__
  File "/usr/lib/python3.8/unittest/suite.py", line 122 in run
  File "/usr/lib/python3.8/unittest/suite.py", line 84 in __call__
  File "/usr/lib/python3.8/unittest/suite.py", line 122 in run

```

https://github.com/llvm/llvm-project/pull/95424

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