[PATCH] i386bsd-nat.c tweak

[Mark Kettenis]

   Date: Tue, 10 Aug 2004 00:44:24 +0200
   From: Robert Millan <rmh@debian.org>

   On Mon, Aug 09, 2004 at 10:48:25PM +0200, Mark Kettenis wrote:
   > diff -u -p -r1.29 i386bsd-nat.c
   > --- i386bsd-nat.c 31 May 2004 11:20:41 -0000 1.29
   > +++ i386bsd-nat.c 9 Aug 2004 20:31:18 -0000
   > @@ -357,10 +357,10 @@ _initialize_i386bsd_nat (void)
   >  #define SC_REG_OFFSET i386nbsd_sc_reg_offset
   >  #elif defined (OpenBSD)
   >  #define SC_REG_OFFSET i386obsd_sc_reg_offset
   > -#else
   > -#define SC_REG_OFFSET i386bsd_sc_reg_offset
   >  #endif

   This disables the code below on GNU/kFreeBSD, but it's still enabled in
   FreeBSD 4.x or later.

Yes indeed.

   Our sigcontext structure is like FreeBSD's (the code is borrowed from
   machine/signal.h).  My impression is that on GNU/kFreeBSD we want to define
   SC_REG_OFFSET i386fbsd4_sc_reg_offset.  Please let me know if I'm missing
   something.

Your sigcontext structure better be identical to FreeBSD's since its
part of the kernel ABI.

   Build on GNU/kFreeBSD still works, but it might be that keeping
   SC_REG_OFFSET undefined results in a weird runtime bug that will be
   difficult to trace, so I'd really like to be sure this part is ok.

It will be caught on normal FreeBSD.

Mark