[parisc-linux] Program counter from sigcontext, constructurs and -fPIC

Carlos O'Donell carlos@baldric.uwo.ca
Tue, 29 Apr 2003 20:31:06 -0400


> no - he's using:
> grundler@debian:~$ uname -a
> Linux debian 2.4.20-pa28 #39 Wed Mar 12 19:24:25 PST 2003 parisc unknown
> unknown GNU/Linux

> It's possible the kernel-headers he's using aren't clean.
> Just in case, can you tell me which ones he should be using?

/usr/inlcude/asm/sigcontext.h should define it to be:

/* We will add more stuff here as it becomes necessary, until we know
   it works. */
struct sigcontext {
        unsigned long sc_flags;
        unsigned long sc_gr[32]; /* PSW in sc_gr[0] */
        unsigned long long sc_fr[32]; /* FIXME, do we need other state info? */
        unsigned long sc_iasq[2];
        unsigned long sc_iaoq[2];
        unsigned long sc_sar; /* cr11 */

Which is used to define an identical mcontext.

> ii  libc6          2.3.1-16       GNU C Library: Shared libraries and Timezone
> ii  libc6-dev      2.3.1-16       GNU C Library: Development Libraries and Hea


> I'm ok with updating to -17 if you promise it won't do evil things
> to my box. ;^)

Don't touch -17, the _Unwind_Find_FDE code broke and it's doing damage
to things like 'vi' ... *sigh* I haven't even looked into this (looks
like gcc/glibc clashes again).