|author||Sebastian Huber <email@example.com>||2022-01-13 13:30:21 +0100|
|committer||Sebastian Huber <firstname.lastname@example.org>||2022-01-17 08:14:12 +0100|
|parent||arm: Avoid duplicate move from CPSR (diff)|
arm: Fix stack alignment during interrupt handling
On a public interface, the stack pointer must be aligned on an 8-byte boundary. However, it may temporarily be only aligned on a 4-byte boundary. The interrupt handling code must ensure that the stack pointer is properly aligned before it calls a function. See also: https://developer.arm.com/documentation/den0013/d/Interrupt-Handling/External-interrupt-requests/Nested-interrupt-handling Update #4579.
Diffstat (limited to 'c/src')
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