[fpc-pascal] How __FPC_specific_handler() is invoked

[Matias Vara]

Hello,

I am writing my own __FPC_specific_handler() but I can't figure out when
this function is registered. I guess this function is registered to the OS
to be invoked when an exception happens. In the assembler code I have
something like:

.seh_handler __FPC_specific_handler, at unwind

But I am puzzled by "@unwind". How is __FPC_specific_handler() invoked?

Matias
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