[Lldb-commits] [clang] [lldb] [UBSan][BoundsSafety] Implement support for more expressive "trap reasons" (PR #154618)

LLVM Continuous Integration via lldb-commits lldb-commits at lists.llvm.org
Wed Aug 27 15:17:09 PDT 2025


llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux-fast` running on `sanitizer-buildbot3` while building `clang,lldb` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/169/builds/14447

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using ld.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:74: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 92313 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90
FAIL: LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s (59727 of 92313)
******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp # RUN: at line 1
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp
not /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp 2>&1 | /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s # RUN: at line 2
+ not /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
Slowest Tests:
--------------------------------------------------------------------------
566.66s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
362.45s: Clang :: Driver/fsanitize.c
350.61s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
263.34s: Clang :: Preprocessor/riscv-target-features.c
256.11s: LLVM :: CodeGen/AMDGPU/memintrinsic-unroll.ll
230.71s: Clang :: OpenMP/target_update_codegen.cpp
225.16s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
222.77s: Clang :: Driver/arm-cortex-cpus-2.c
214.70s: Clang :: Driver/arm-cortex-cpus-1.c
213.29s: Clang :: Preprocessor/arm-target-features.c
208.12s: Clang :: Preprocessor/aarch64-target-features.c
185.96s: Clang :: CodeGen/AArch64/sve-intrinsics/acle_sve_reinterpret.c
175.49s: Clang :: CodeGen/X86/avx2-builtins.c
175.22s: Clang :: Analysis/a_flaky_crash.cpp
171.85s: Clang :: Preprocessor/predefined-arch-macros.c
171.27s: LLVM :: CodeGen/RISCV/attributes.ll
148.78s: Clang :: CodeGen/X86/avx512f-builtins.c
143.51s: Clang :: Driver/linux-ld.c
134.58s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.512bit.ll
132.68s: Clang :: Driver/x86-target-features.c

Step 10 (stage2/asan_ubsan check) failure: stage2/asan_ubsan check (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using ld.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:527: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:74: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 92313 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90
FAIL: LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s (59727 of 92313)
******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp # RUN: at line 1
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp
not /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp 2>&1 | /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s # RUN: at line 2
+ not /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
Slowest Tests:
--------------------------------------------------------------------------
566.66s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
362.45s: Clang :: Driver/fsanitize.c
350.61s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
263.34s: Clang :: Preprocessor/riscv-target-features.c
256.11s: LLVM :: CodeGen/AMDGPU/memintrinsic-unroll.ll
230.71s: Clang :: OpenMP/target_update_codegen.cpp
225.16s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
222.77s: Clang :: Driver/arm-cortex-cpus-2.c
214.70s: Clang :: Driver/arm-cortex-cpus-1.c
213.29s: Clang :: Preprocessor/arm-target-features.c
208.12s: Clang :: Preprocessor/aarch64-target-features.c
185.96s: Clang :: CodeGen/AArch64/sve-intrinsics/acle_sve_reinterpret.c
175.49s: Clang :: CodeGen/X86/avx2-builtins.c
175.22s: Clang :: Analysis/a_flaky_crash.cpp
171.85s: Clang :: Preprocessor/predefined-arch-macros.c
171.27s: LLVM :: CodeGen/RISCV/attributes.ll
148.78s: Clang :: CodeGen/X86/avx512f-builtins.c
143.51s: Clang :: Driver/linux-ld.c
134.58s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.512bit.ll
132.68s: Clang :: Driver/x86-target-features.c


```

</details>

https://github.com/llvm/llvm-project/pull/154618


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