Re: segfault in __libc_start_main when compiling f77 and c code together?

[Toon Moene <toon at moene dot indiv dot nluug dot nl>]

Britton wrote:

> On Tue, 9 Jan 2001, Toon Moene wrote:
> 
> > Perhaps you could answer some questions related to this problem:
> >
> > 1. Which language is providing the main program - i.e. is it a Fortran
> >    program calling C routines or vice versa.
> 
> Its about as convoluted a setup as I've ever seen.  main is in C, and
> calls a combination of functions in C and fortran.

> However, it does segfault before anything actually happens in main, 

This is a sure sign there's something wrong with the amount of
statically allocated storage (large arrays in Fortran or static stuff in
C) as compared to the total RAM+SWAP memory on your computer.

E.g.:

toon@laptop:~/g77-bugs$ cat huge.f
      program huge
      real a(40 000 000)
      end
toon@laptop:~/g77-bugs$ g77 huge.f
toon@laptop:~/g77-bugs$ ./a.out
Segmentation fault

(my laptop has 64 Mbyte of RAM and 90 Mbyte of SWAP space).

Hope this helps,

-- 
Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346 214290
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