[llvm] [NativePDB] Fix crash in llvm-pdbutil (PR #164871)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Sat Nov 1 09:09:30 PDT 2025 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-darwin` running on `doug-worker-3` while building `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/23/builds/15185

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

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'Clang :: Driver/fsanitize.c' FAILED ********************
Exit Code: 127

Command Output (stdout):
--
# RUN: at line 3
/Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined -fsanitize-trap=undefined /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c -### 2>&1 | /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined -fsanitize-trap=undefined /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c '-###'
# note: command had no output on stdout or stderr
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP
# note: command had no output on stdout or stderr
# RUN: at line 4
/Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined -fsanitize-trap=undefined -fno-sanitize-trap=signed-integer-overflow /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c -### 2>&1 | /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP2
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined -fsanitize-trap=undefined -fno-sanitize-trap=signed-integer-overflow /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c '-###'
# note: command had no output on stdout or stderr
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP2
# note: command had no output on stdout or stderr
# RUN: at line 5
/Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined -fsanitize-undefined-trap-on-error /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c -### 2>&1 | /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined -fsanitize-undefined-trap-on-error /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c '-###'
# note: command had no output on stdout or stderr
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP
# note: command had no output on stdout or stderr
# RUN: at line 6
/Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined-trap -fsanitize-undefined-trap-on-error /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c -### 2>&1 | /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined-trap -fsanitize-undefined-trap-on-error /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c '-###'
# note: command had no output on stdout or stderr
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP
# note: command had no output on stdout or stderr
# RUN: at line 7
/Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize-undefined-trap-on-error -fsanitize=undefined-trap /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c -### 2>&1 | /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize-undefined-trap-on-error -fsanitize=undefined-trap /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c '-###'
# note: command had no output on stdout or stderr
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP
# note: command had no output on stdout or stderr
# RUN: at line 8
/Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize-trap -fsanitize=undefined-trap /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c -### 2>&1 | /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize-trap -fsanitize=undefined-trap /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c '-###'
# note: command had no output on stdout or stderr
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-TRAP
# note: command had no output on stdout or stderr
# RUN: at line 18
/Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined -fsanitize-trap=undefined                                                                                              /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c -### 2>&1 | /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-MERGE
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined -fsanitize-trap=undefined /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c '-###'
# note: command had no output on stdout or stderr
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-MERGE
# note: command had no output on stdout or stderr
# RUN: at line 19
/Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined -fsanitize-trap=undefined                                             -fsanitize-merge                                 /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c -### 2>&1 | /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/FileCheck /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c --check-prefix=CHECK-UNDEFINED-MERGE
# executed command: /Volumes/RAMDisk/buildbot-root/x86_64-darwin/build/bin/clang --target=x86_64-linux-gnu -fsanitize=undefined -fsanitize-trap=undefined -fsanitize-merge /Volumes/RAMDisk/buildbot-root/x86_64-darwin/llvm-project/clang/test/Driver/fsanitize.c '-###'
...

```

</details>

https://github.com/llvm/llvm-project/pull/164871

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