Stack misalignment
Closed this issue · 1 comments
XuhengLi commented
Hi @Lenz-K,
Thank you for sharing your code. While your unmodified code works perfectly, I found that the stack setup in your linker script might be misaligned:
Based on Arm ABI(https://github.com/ARM-software/abi-aa/blob/main/aapcs64/aapcs64.rst#the-stack), the stack pointer should always be aligned to 16-byte(quad-word).
The current specific code works because the stack_top happens to be aligned to 16-byte but if some changes were made to the code or makefile, this could be broken.
This can be easily fixed by set alignment to 16.
Cheers!