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0 pointsTuxSH4y ago0 comments

pop {..., pc} is THE standard way to return from a function that calls other functions itself, on Armv5 and above. Non tail functions usually do this: push {..., lr} ... pop {..., pc}

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3 comments · 1 top-level

mmastrac4y ago· 2 in thread

Only if there's a corresponding push { ..., lr }, but in this case there isn't. I'd expect bx lr here.

TuxSHOP4y ago

As other people are saying, code seems to be jumped at at #6.

> I'd expect bx lr here

LR is being clobbered by the bl (EDIT: bl, not blx)

mmastrac4y ago

> As other people are saying, code seems to be jumped at at #6.

Well yeah, that's what I said above.

> LR is being clobbered by the blx

There's no blx in the first section. These first six bytes would only make sense if this small stub ended in bx lr, therefore I don't think it's a valid function.

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