On 14-5-2022 17:51, Jonas Maebe via fpc-pascal wrote:
On 14/05/2022 17:31, Marco van de Voort via fpc-pascal wrote:
Also when an exception happens, the stack pointer is not as expected
in exception frames (don't know if that really is an issue, but I can
image). It would be interesting how C handles this (e.g. exceptions
while alloca called in a loop?)
This is handled via dwarf call frame information, which is also
generated by the compiler. It describes how to restore the stack
pointer for every instruction address where it changes.
I was thinking about SEH, but same principle. But that is exactly what I
expected, so if you manually mutate the stack pointer using assembler,
it won't register in the unwind info frames.
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