KeDeng has uploaded this change for review. ( http://gerrit.cloudera.org:8080/23061
Change subject: Fix unaligned pointer warning on ARM due to address-of-packed-member in CBTree ...................................................................... Fix unaligned pointer warning on ARM due to address-of-packed-member in CBTree On ARM-based platforms (e.g., Rocky Linux 9), building Kudu triggers the following warning: warning: taking address of packed member of ‘InternalNode<DMSTreeTraits>’ may result in an unaligned pointer value [-Waddress-of-packed-member] This warning was raised in InternalNode::Insert(), where the address of the packed member 'num_children_' is passed to base::subtle::Release_Store(). Taking the address of a packed field can lead to unaligned memory access, which is undefined behavior on some architectures like ARM. To fix this, avoid directly taking the address of the packed member. Instead, cast the pointer through an intermediate uintptr_t to ensure alignment safety, or use memcpy to avoid potential misalignment issues. This change suppresses the warning and ensures safe access to memory across architectures without changing the memory layout. Tested on: Rocky Linux 9 (aarch64) Change-Id: Ib8e6f7b0d3516409ae99e4c846f839b6868b3deb --- M src/kudu/tablet/concurrent_btree.h 1 file changed, 3 insertions(+), 1 deletion(-) git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/61/23061/1 -- To view, visit http://gerrit.cloudera.org:8080/23061 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: Ib8e6f7b0d3516409ae99e4c846f839b6868b3deb Gerrit-Change-Number: 23061 Gerrit-PatchSet: 1 Gerrit-Owner: KeDeng <[email protected]>
