RTEMS | libdebugger: Fix corruption of thread registers with 32 or more threads (!1342)

Chris Johns (@chris) gitlab at rtems.org
Tue Jul 7 05:19:29 UTC 2026



Chris Johns created a merge request: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1342

Project:Branches: chris/rtems:chris/main/5635-libdebugger-reg-corruption-32-threads to rtems/rtos/rtems:main
Author:   Chris Johns
Assignee: Chris Johns


## Summary

Fix corruption of thread registers with 32 or more threads

The block logic uses `realloc` to resize memory used by `libdebugger` when creating a snapshot of threads. Thread registers take a reference to the block and if a `realloc` changes the base address any references are invalid. Add rebase handler support to blocks that is called when the block base changes and add a handler to thread register blocks to rebase a thread's registers.

Exclude threads using both types of names they can have. This lets all names be reported in extra thread info packets.

The MR includes a couple formatting clean up changes.

Closes #5635

## Generative AI

None

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1342
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