Re: Solaris 64bit mode: crash in longjmp()

On Sun, Dec 07, 2003, Gene wrote:
> The fact is ST was never ported to 64-bit mode on Solaris.
> In 64-bit mode (LP64) jmp_buf structure is completely different,
> that's why you are getting crashes.

If the structure is different, wouldn't it be more portable to use
makecontext on SysV? I read a paper about GNU Pth where the different
context switching methods are explained and it preferred makecontext
if available (that's why I didn't find hints about a different
layout, I checked sizeof(jmp_buf) and in 64bit mode it was as
expected twice as big as in 32bit mode).

> Now, how do you compile 64-bit mode with gcc? Special compiler
> flags? Do you need special 64-bit gcc version? I have an access
> to Solaris 9 box on Sourceforge farm so I may try to port it
> if that box supports 64-bit mode:

gcc -m64
is all you need (AFAIK), for Sun's compiler its
cc -xarch=v9

Thanks!


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