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Be defensive when working with potentially unitialized thread structures#84

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jbachorik merged 1 commit intomainfrom
jb/native_thread_id
Apr 10, 2024
Merged

Be defensive when working with potentially unitialized thread structures#84
jbachorik merged 1 commit intomainfrom
jb/native_thread_id

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@jbachorik jbachorik commented Apr 10, 2024

What does this PR do?:
Make the code poking in the thread internals more resilient not to crash on unexpected states. Also, fall back to a different mode of retrieving the native thread id where it makes sense.

For Datadog employees:

  • If this PR touches code that signs or publishes builds or packages, or handles
    credentials of any kind, I've requested a review from @DataDog/security-design-and-guidance.
  • This PR doesn't touch any of that.
  • JIRA: PROF-9543

Unsure? Have a question? Request a review!

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🔧 Report generated by pr-comment-scanbuild

Scan-Build Report

User:runner@fv-az1382-82
Working Directory:/home/runner/work/java-profiler/java-profiler/ddprof-lib/src/test/make
Command Line:make -j4 clean all
Clang Version:Ubuntu clang version 14.0.0-1ubuntu1.1
Date:Wed Apr 10 12:16:20 2024

Bug Summary

Bug TypeQuantityDisplay?
All Bugs6
Logic error
Assigned value is garbage or undefined1
Dereference of null pointer2
Result of operation is garbage or undefined1
Unused code
Dead initialization1
Dead nested assignment1

Reports

Bug Group Bug Type ▾ File Function/Method Line Path Length
Logic errorAssigned value is garbage or undefineddwarf.cppparseInstructions23520
Unused codeDead initializationlivenessTracker.cppcleanup_table451
Unused codeDead nested assignmentvmStructs.cppcheckNativeBinding8181
Logic errorDereference of null pointerflightRecorder.cppflush14108
Logic errorDereference of null pointersafeAccess.hload3518
Logic errorResult of operation is garbage or undefineddwarf.hgetSLeb14225

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🔧 Report generated by pr-comment-cppcheck

CppCheck Report

Warnings (5)

Style Violations (162)

@jbachorik jbachorik added this to the 1.4.0 milestone Apr 10, 2024
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2 participants