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/* Functions specific to running gdb native on a Powerpc System.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <sys/types.h>
#include <sys/ptrace.h>
#include <sys/param.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 <machine/reg.h>
#include "defs.h"
#include "inferior.h"
#include "target.h"
#include "gdbcore.h"
#include <nlist.h>
#if !defined (offsetof)
#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
#endif
void
fetch_inferior_registers (regno)
int regno;
{
struct reg inferior_registers;
/*
* this gets fp and gpr?
*/
ptrace (PT_GETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) &inferior_registers, 0);
memcpy (®isters, &inferior_registers,
sizeof(inferior_registers));
registers_fetched ();
}
void
store_inferior_registers (regno)
int regno;
{
struct reg inferior_registers;
memcpy (&inferior_registers, ®isters,
sizeof(inferior_registers));
ptrace (PT_SETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) &inferior_registers, 0);
}
/* 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;
{
int ppcreg[] =
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* fp 0-15 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* fp 16-31 */
36, 37, 33, 32, 35, 34 , 0 };
/* "pc", "ps", "cnd", "lr", "cnt", "xer", "mq" */
/*
32 lr
33 cr
34 xer
35 ctr
36 srr0
37 srr1
*/
if (regno < NUM_REGS) {
return (blockend + REGISTER_BYTE(regno));
} else
{
fprintf_unfiltered (gdb_stderr, "\
Internal error: invalid register number %d in REGISTER_U_ADDR\n",
regno);
return blockend;
}
}
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