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[3.13] gh-125444: Fix illegal instruction for older Arm architectures (GH-125574)#125595
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colesbury merged 1 commit intopython:3.13fromOct 16, 2024
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…ythonGH-125574)On Arm v5 it is not possible to get the thread ID via c13 registerhence the illegal instruction. The c13 register started to providethread ID since Arm v6K architecture variant. Other variants ofArm v6 (T2, Z and base) don’t provide the thread ID via c13.For the sake of simplicity we group v5 and v6 together andconsider that instructions for Arm v7 only.(cherry picked from commitfeda9aa)Co-authored-by: Diego Russo <diego.russo@arm.com>
This was referencedOct 16, 2024
colesbury approved these changesOct 16, 2024
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On Arm v5 it is not possible to get the thread ID via c13 register
hence the illegal instruction. The c13 register started to provide
thread ID since Arm v6K architecture variant. Other variants of
Arm v6 (T2, Z and base) don’t provide the thread ID via c13.
For the sake of simplicity we group v5 and v6 together and
consider that instructions for Arm v7 only.
(cherry picked from commitfeda9aa)
Co-authored-by: Diego Russodiego.russo@arm.com