93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/* Functions specific to running gdb native on a Motorola Delta Series sysV68.
|
|
Copyright (C) 1993, 1997-98, 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., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, 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. */
|
|
|
|
CORE_ADDR
|
|
register_addr (regno, blockend)
|
|
int regno;
|
|
CORE_ADDR 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_unfiltered (gdb_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 ()
|
|
{
|
|
struct 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);
|
|
}
|
|
}
|
|
|
|
clear_insn_cache ()
|
|
{
|
|
#ifdef MCT_TEXT /* in sys/signal.h on sysV68 R3V7.1 */
|
|
memctl (0, 4096, MCT_TEXT);
|
|
#endif
|
|
}
|
|
|
|
kernel_u_size ()
|
|
{
|
|
return sizeof (struct user);
|
|
}
|