RTEMS | bsps/leon3: Limit the interrupt map to 32 lines (!1514)

[Sebastian Huber (@sebhub)]

Sebastian Huber created a merge request: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1514

Project:Branches: sebhub/rtems:up/leon3-irqmap-bound to rtems/rtos/rtems:main
Author: Sebastian Huber

## Summary

Issue #5786: The IRQMAP support assumes 64 bus interrupt lines

One commit. It removes `BSP_INTERRUPT_VECTOR_MAX_MAP` and bounds the
interrupt map by `BSP_INTERRUPT_VECTOR_COUNT`, the size of the dispatch
table. The BSP then reads only IRQMAP0 to IRQMAP7. A map field value outside
this bound becomes line 0, and a bus line which maps to line 0 is an invalid
vector.

The generated `irqamp-regs.h` still declares 16 map registers. The BSP reads
only the first eight.

The GR740 test suite passes on SIS with rtems/tools/rtems-sis!13:

| Build | Before | After |
| --- | --- | --- |
| uni | 642 passed, 1 failed | 643 passed, 0 failed |
| SMP | 713 passed, 1 failed | 714 passed, 0 failed |

The failure before the change is `ts-validation-intr.exe`.

**BSP** `sparc/gr740` · **Simulator** SIS with rtems/tools/rtems-sis!13, `-gr740 -extirq 10 -m 4`

## AI Details
<!-- Make sure you have read our statement at https://www.rtems.org/generative-ai/ -->

### Prompt used

None as a single prompt. The work was done in an interactive Claude Code
session on the RTEMS tree. The task was to fix the defect of #5786, which an
earlier session found while it ran the GR740 test suite on SIS. Each change
was directed and reviewed.

### AI model used

Claude Opus 5.5 (claude-opus-5-5), through Claude Code.

### How AI was used for the contribution

- ( ) Formatting
- ( ) Test creation.
- (x) Code comments.
- ( ) The entire contribution was generated using AI
- ( ) AI code completion such as Copilot in VSCode.

The implementation was produced in that session under my direction, and the
commit message and this description were drafted there.

### Access

I have not used a product which claims copyright in its output, and I have
legitimate access to the one I used.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1514
You're receiving this email because of your account on gitlab.rtems.org. Unsubscribe from this thread: https://gitlab.rtems.org/-/namespace/49/sent_notifications/5-7wje8dzd80k8evqtv8mgs5wws-1d/unsubscribe | Manage all notifications: https://gitlab.rtems.org/-/profile/notifications | Help: https://gitlab.rtems.org/help


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rtems.org/pipermail/bugs/attachments/20260926/841b3cd3/attachment.htm>