fix: align native libraries to 16 KB page boundaries for Android 15+ - #74
Open
verlyn13 wants to merge 1 commit into
Open
fix: align native libraries to 16 KB page boundaries for Android 15+#74verlyn13 wants to merge 1 commit into
verlyn13 wants to merge 1 commit into
Conversation
Android 15+ devices may use 16 KB page sizes. Native libraries with LOAD segments not aligned to 16 KB boundaries will fail to load on these devices. Add APP_LDFLAGS with -Wl,-z,max-page-size=16384 to ensure all native libraries (libUVCCamera, libjpeg-turbo1500, libusb100, libuvc) are built with proper alignment. See: https://developer.android.com/guide/practices/page-sizes 🤖 Generated with Claude Code Co-Authored-By: Claude <noreply@anthropic.com>
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
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Problem
Android 15 introduces support for 16 KB page sizes. Devices using 16 KB pages cannot load native libraries that have ELF
LOADsegments not aligned to 16 KB boundaries.Currently, all four native libraries produce alignment warnings:
libUVCCamera.solibjpeg-turbo1500.solibusb100.solibuvc.soSolution
Add
APP_LDFLAGS := -Wl,-z,max-page-size=16384toApplication.mk, which applies the 16 KB alignment to all native libraries at link time.Verification
After this change, all
LOADsegments in the built libraries showAlign: 0x4000(16384 bytes).References