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cortex-m-rt: Add alignment check for the .vector_table #582

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Mar 8, 2025
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cortex-m-rt: Add alignment check for the .vector_table #582

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6 changes: 6 additions & 0 deletions cortex-m-rt/link.x.in
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Original file line number Diff line number Diff line change
Expand Up @@ -261,6 +261,12 @@ Possible solutions, from most likely to less likely:
may be enabling it)
- Supply the interrupt handlers yourself. Check the documentation for details.");

ASSERT(ADDR(.vector_table) % MAX(128, 1 << LOG2CEIL(SIZEOF(.vector_table))) == 0, "
ERROR(cortex-m-rt): Interrupt vector table misalignment detected. The vector table must
be aligned to the larger of:
- 128 bytes
- The next power of two greater than or equal to its size");

/* ## .text */
ASSERT(ADDR(.vector_table) + SIZEOF(.vector_table) <= _stext, "
ERROR(cortex-m-rt): The .text section can't be placed inside the .vector_table section
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