Linux 2.0/2.1 incompatibility may cause kaffe to fail

[Parmelan, Edouard]

> -----Original Message-----
> From:	Godmar Back [SMTP:gback at cs.utah.edu]
> Sent:	Friday, December 11, 1998 6:03 PM
> To:	kaffe at rufus.w3.org
> Cc:	kaffe-bugs at transvirtual.com; godzilla at netmeg.net
> Subject:	Linux 2.0/2.1 incompatibility may cause kaffe to fail
> 
> 
>  Edouard pointed out to me that there is an incompatibility between
> Linux 2.0 and 2.1 due to various changes in their C library, namely
> the signal handling.  More specifically, the incompatibility has to
> do with the various versions of Linux's C library floating around.
> (libc5, libc6, glibc2, you name it)
Linux 2.1 handle SA_SIGINFO witch changes the prototype of
the signal handler (EXCEPTIONPROTO):
without SA_SIGINFO in sigaction:
  int sig, struct sigcontext_struct ctx
or
  int sig, struct sigcontext ctx
with SA_SIGINFO in sigaction (linux 2.1):
  int sig, struct siginfo *sip, struct ucontext *ctx

I quick read includes on a linux-2.0 glibc2 config and
SA_SIGINFO is not defined.  So, SA_SIGINFO is not handle
in glibc 2.0.6 (aka libc6).

> Recent bug reports concerning exception handling in kaffe are most 
> likely caused by this.
> 
> Building on 2.0 and running it on 2.1 or vice versa will not
> work.  Always build and run on the same version of Linux.
compiling on 2.0 and running on 2.1 does work.
but compiling on 2.1 and running on 2.0 does not work.

Edouard.