binutils-gdb/gdb/delta68-nat.c
Jim Kingdon 976bb0be03 * Makefile.in (init.c): Generate using the source, not munch. This
cleans up all kinds of hassles (which nm to use in munch, etc).  The
	new formatting conventions (mostly already followed) are that
	the name of the _initialize_* routines must start in column zero,
	and must not be inside #if.
	* munch: Removed.
	* Makefile.in: Remove references to munch.
	* serial.c, remote.c, infptrace.c, maint.c, convex-tdep.c,
	alpha-tdep.c, hp300ux-nat.c, hppab-nat.c, osfsolib.c, remote-es.c,
	procfs.c, remote-udi.c, ser-go32.c, ultra3-xdep.c, sh-tdep.c,
	i960-tdep.c, hppa-tdep.c, h8500-tdep.c, dpx2-nat.c, delta68-nat.c,
	z8k-tdep.c: Make sure the above conventions are followed.  Make
	sure they are all declared as returning void.  Clean up
	miscellaneous comments and such.
1993-10-22 05:55:58 +00:00

80 lines
2.4 KiB
C

/* Functions specific to running gdb native on a Motorola Delta Series sysV68.
Copyright (C) 1993, Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "defs.h"
#include <sys/signal.h> /* for MAXSIG in sys/user.h */
#include <sys/types.h> /* for ushort in sys/dir.h */
#include <sys/dir.h> /* for struct direct in sys/user.h */
#include <sys/user.h>
#include <nlist.h>
#if !defined (offsetof)
#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
#endif
/* Return the address in the core dump or inferior of register REGNO.
BLOCKEND is the address of the end of the user structure. */
unsigned int
register_addr (regno, blockend)
int regno;
int blockend;
{
static int sysv68reg[] =
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, -1, 15, 16 };
if (regno >= 0 && regno < sizeof(sysv68reg) / sizeof(sysv68reg[0]))
return blockend + sysv68reg[regno] * 4;
else if (regno < FPC_REGNUM)
return offsetof (struct user, u_fpu.regs.reg[regno - FP0_REGNUM][0]
else if (regno == FPC_REGNUM)
return offsetof (struct user, u_fpu.regs.control);
else if (regno == FPS_REGNUM)
return offsetof (struct user, u_fpu.regs.status);
else if (regno == FPI_REGNUM)
return offsetof (struct user, u_fpu.regs.iaddr);
else
{
fprintf (stderr, "\
Internal error: invalid register number %d in REGISTER_U_ADDR\n",
regno);
return blockend;
}
}
CORE_ADDR kernel_u_addr;
/* Read the value of the u area from the kernel. */
void
_initialize_delta68_nat ()
{
stuct nlist nl[2];
nl[0].n_name = "u";
nl[1].n_name = NULL;
if (nlist ("/sysV68", nl) == 0 && nl[0].n_scnum != 0)
kernel_u_addr = nl[0].n_value;
else
{
perror ("Cannot get kernel u area address");
exit (1);
}
}