branch-4.1: [fix](be ut) Skip custom memcpy on ARM+ASAN to fix segfault at process startup #63656#63942
Merged
Merged
Conversation
…s startup (#63656) The glibc-compatibility module provides a custom memcpy implementation (memcpy_aarch64.cpp) that overrides the global memcpy symbol via extern "C". This is done to avoid dependency on a specific glibc symbol version (e.g., memcpy@@GLIBC_2.14) for portability. However, libpthread's __pthread_initialize_minimal() calls memcpy during very early process startup — before main(), before C++ static initialization, and before ASAN shadow memory is set up. When ASAN is enabled, the custom memcpy accesses memory that ASAN shadow has not yet mapped, resulting in SIGSEGV. This only affects aarch64 + ASAN because: RELEASE builds have no ASAN shadow memory checks x86_64 + ASAN does not exhibit this crash (different shadow memory layout and initialization timing) Co-authored-by: root <root@DESKTOP-3AF37B>
Contributor
|
Thank you for your contribution to Apache Doris. Please clearly describe your PR:
|
Contributor
|
run buildall |
yiguolei
approved these changes
Jun 1, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Cherry-picked from #63656