Repository navigation
Conversation
Detached sections, like .cold and .coldrodata, are not copied into
their region but stay in the ELF buffer. llext_manager computed their
addresses as the region address plus the section offset returned by
llext_get_section_info(). This only worked by accident, while the
region was used in place. Since Zephyr commit 181077caab27 ("llext:
report no region offset for detached sections"), the offset for a
detached section is (size_t)-1. The .cold partition is no longer added
to the user memory domain and MMU flags are applied to the wrong
pages. Calling a .cold function from a user thread then fails with
EXCCAUSE 18 (instr fetch privilege), e.g. when the DRC module is
loaded.
Use llext_peek() at the section's ELF file offset instead, matching
what Zephyr llext itself does for detached sections. This also
removes the section lookup loop in llext_manager_add_mod_domain().
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Update Zephyr to 76280bce2a05 ("release: Zephyr 4.5.0-rc3").
Total of 4333 commits.
Changes include:
1c60ac6c1dc6 soc: intel_adsp: ace40: allow userspace to execute cold
functions
f619c179fc35 arch: xtensa: mmu: skip unmapped L1 entries in
region_map_update()
5d0c907ec5d3 drivers: mm: intel_adsp: tlb: map uncached alias in the MMU
da29f2545f78 llext: reject an out-of-section plt relocation
979e655d465f xtensa: mask interrupts before leaving the cross-stack call
ac806fc4d322 llext: support Xtensa MPU in llext_copy_region()
8fefdcc4e555 xtensa: export symbol xtensa_is_user_context()
16592affe202 arch: xtensa: save the boolean register
c4a4a36353ed llext: fix detached section addresses with copied text
6038faef172b drivers: dai: nxp: sai: fix DMA handshake for
nxp,mcux-edma controllers
647f444ded62 llext: use the MMU page size only on targets with an MMU
2fc93dcc7e6e arch: xtensa: match z_irq_priority_set() declaration to
definition
14a652034b96 arch: xtensa: use unsigned int for
xtensa_irq_enable/disable()
4fdaedc7a2a0 soc: intel_adsp/ace: enable CONFIG_IPI_OPTIMIZE for testing
3ba231580276 timer: intel_adsp_timer: tests need timer IRQ for all cores
2271fd46854b soc: intel_adsp: record triple fault breadcrumbs in HP-SRAM
window0
f43453290df2 xtensa: add generic triple fault breadcrumb API
43a3e87f390b soc: intel_adsp: record fatal exception breadcrumbs in
HP-SRAM window0
1e2b3bc58ff4 xtensa: add generic fatal exception breadcrumb API
07583d726104 soc: mediatek: decouple the mt8xxx family from Xtensa
e12a539cd631 soc: mediatek: move the shared audio DSP files into
common/adsp
99b2b3da5317 drivers: dma: amd_acp_host: Reject start from an invalid
state
acf7fc963b01 arch: xtensa: fix the soc pointer check prototype
699c613f0726 arch: xtensa: carry backtrace mask and cause in the frame
bf65aa2ff280 boards: intel: adsp: Fix invalid stack size setting
18f4914e6918 drivers: dai: intel: uaol: implement get_properties_copy
52b48529aecc soc: intel_adsp: condition mem-coherence select on cache
mgmt
c8049431a47d soc: intel_adsp: tools: add mtracetool, a standalone mtrace
capture tool
fe7066e15495 soc: intel_adsp: tools: cavstool.py: add passive mtrace log
monitoring
0c5a0c9e1ddd drivers: audio: codec_dummy: implement the required
operations
d1352ac2a8e7 drivers: timer: intel_adsp_timer: use the generic timer core
450f80417675 debug: coredump: add AMD ACP panic dump backend
2756f2c863de xtensa: mmu: simplify TLB shootdown
60c928462028 xtensa: mmu: no TLB shootdown if not needed during thread
add
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
kv2019i
requested review from
dbaluta,
lbetlej,
lgirdwood,
mmaka1 and
plbossart
as code owners
October 26, 2026 09:15
Contributor
There was a problem hiding this comment.
🔵 Needs a closer look
The Zephyr upgrade and detached-section memory mapping changes require target-platform integration validation.
No open issues 🎉
What changed in this PR
Updates Zephyr and adapts the library manager’s detached cold-section handling for compatibility with the newer loader behavior.
Changes:
- Advances the Zephyr revision in
west.yml. - Uses ELF-buffer addresses from
llext_peek()for detached-section permissions, cache invalidation, and userspace memory partitions.
| File | Description |
|---|---|
west.yml |
Updates the pinned Zephyr revision. |
src/library_manager/llext_manager.c |
Uses ELF-buffer addresses when managing detached cold sections. |
Review effort: Balanced
PR 11355: test resultsRun date: 2026-10-26 14:32 UTC Tested commit: a33cffdd1317069b65af207f0af28b550464417d
|
kv2019i
requested review from
abonislawski,
serhiy-katsyuba-intel,
tmleman and
wjablon1
October 26, 2026 15:57
serhiy-katsyuba-intel
approved these changes
Oct 26, 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
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.
Update Zephyr to newer version.
This series also has a mandatory change to cold section handling in library manager. This can be applied early, but is mandatory before we can upgrade Zephyr (see commit message for details).