> >How do you return an out of memory error to a C program that is out of memory
> >due to a stack growth fault. There is actually not a language construct for it
> SIGSEGV.
> Stack overflow for a language like C using standard implementation techniques
> is the same as a page fault while accessing a page for which there is no backing
> store. SIGSEGV is the logical choice, and the one I'd expect on other Unices.
Guess again. You are expanding the stack because you have no room left on it.
You take a fault. You want to report a SIGSEGV. Now where are you
going to put the stack frame ?
SIGSEGV in combination with a preallocated alternate stack maybe, but then you
still need to recover. C++ you can maybe do it with exception handling but
C doesnt really have the structure and longjmp just doesnt cut it.
Alan
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This archive was generated by hypermail 2b29 : Fri Mar 23 2001 - 21:00:19 EST