Re: [ST-devel] Solaris 64bit mode: crash in longjmp()

[Gene <ge...@co...>]

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.

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:

$ uname -a
SunOS sparc-solaris1 5.9 Generic_112233-03 sun4u sparc SUNW,Ultra-60
$ gcc --version
gcc (GCC) 3.3.1
Copyright (C) 2003 Free Software Foundation, Inc.


Claus Assmann wrote:

>[forwarded from st-users with more information]
>
>Has anyone succeeded compiling and using statethreads in 64bit mode
>on Solaris (8 or 9, using gcc or Sun's C compiler)?  A simple program
>crashes in longjmp():
>
>#0  0xffffffff7ec3b8e8 in longjmp () from /usr/lib/64/libc.so.1
>#1  0x00000001000035a0 in _st_vp_schedule () at sched.c:165
>#2  0x0000000100004e88 in st_usleep (usecs=4294987380) at sync.c:113
>#3  0x0000000100002b48 in main (argc=16777217, argv=0x100006e28) at thr-1.c:120
>
>The program creates one thread and calls st_usleep(timeout); where
>timeout is 1000, to force a context switch. Are there any required
>changes to the stack context switch code in md.h for this combination?
>
>I've tried to use setcontext() etc instead, but didn't get anywhere
>either, the way I used it is probably wrong:
>
>#define MD_SETJMP(env) getcontext(&(env))
>#define MD_LONGJMP(env, val) setcontext(&(env))
>
>_ST_INIT_CONTEXT:
>  if (getcontext(&(thread->context)) != 0)
>        return NULL;
>  (thread)->context.uc_link = NULL;
>  (thread)->context.uc_stack.ss_sp = (void *) (stack->sp);
>  (thread)->context.uc_stack.ss_size = stk_size;
>  (thread)->context.uc_stack.ss_flags = 0;
>  makecontext(&(thread)->context, _st_thread_main, 1);
>