135 lines
3.3 KiB
C
135 lines
3.3 KiB
C
/* Low level MIPS interface to ptrace, for GDB when running under Unix.
|
|
Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.
|
|
Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
|
|
and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
|
|
|
|
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 <stdio.h>
|
|
#include <mips/inst.h>
|
|
#include "defs.h"
|
|
#include "param.h"
|
|
#include "frame.h"
|
|
#include "inferior.h"
|
|
#include "symtab.h"
|
|
#include "value.h"
|
|
|
|
#ifdef USG
|
|
#include <sys/types.h>
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/dir.h>
|
|
#include <signal.h>
|
|
#include <sys/ioctl.h>
|
|
/* #include <fcntl.h> Can we live without this? */
|
|
|
|
#include "gdbcore.h"
|
|
|
|
#include <sys/user.h> /* After a.out.h */
|
|
#include <sys/file.h>
|
|
#include <sys/stat.h>
|
|
|
|
/* Get all registers from the inferior */
|
|
|
|
void
|
|
fetch_inferior_registers ()
|
|
{
|
|
register int regno;
|
|
register unsigned int regaddr;
|
|
char buf[MAX_REGISTER_RAW_SIZE];
|
|
register int i;
|
|
|
|
registers_fetched ();
|
|
|
|
for (regno = 1; regno < NUM_REGS; regno++)
|
|
{
|
|
regaddr = register_addr (regno, 1);
|
|
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
|
|
{
|
|
*(int *) &buf[i] = ptrace (3, inferior_pid, regaddr, 0);
|
|
regaddr += sizeof (int);
|
|
}
|
|
supply_register (regno, buf);
|
|
}
|
|
}
|
|
|
|
/* Store our register values back into the inferior.
|
|
If REGNO is -1, do this for all registers.
|
|
Otherwise, REGNO specifies which register (so we can save time). */
|
|
|
|
store_inferior_registers (regno)
|
|
int regno;
|
|
{
|
|
register unsigned int regaddr;
|
|
char buf[80];
|
|
|
|
if (regno == 0)
|
|
return;
|
|
|
|
if (regno > 0)
|
|
{
|
|
regaddr = register_addr (regno, 1);
|
|
errno = 0;
|
|
ptrace (6, inferior_pid, regaddr, read_register (regno));
|
|
if (errno != 0)
|
|
{
|
|
sprintf (buf, "writing register number %d", regno);
|
|
perror_with_name (buf);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (regno = 1; regno < NUM_REGS; regno++)
|
|
{
|
|
if (regno == 32 || regno == 35 || regno == 36 || regno == 71)
|
|
continue;
|
|
regaddr = register_addr (regno, 1);
|
|
errno = 0;
|
|
ptrace (6, inferior_pid, regaddr, read_register (regno));
|
|
if (errno != 0)
|
|
{
|
|
sprintf (buf, "writing all regs, number %d", regno);
|
|
perror_with_name (buf);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
void
|
|
fetch_core_registers ()
|
|
{
|
|
register int regno;
|
|
int val;
|
|
|
|
for (regno = 1; regno < NUM_REGS; regno++) {
|
|
char buf[MAX_REGISTER_RAW_SIZE];
|
|
|
|
val = bfd_seek (core_bfd, register_addr (regno, 0));
|
|
if (val < 0 || (val = bfd_read (core_bfd, buf, sizeof buf)) < 0) {
|
|
char buffer[50];
|
|
strcpy (buffer, "Reading register ");
|
|
strcat (buffer, reg_names[regno]);
|
|
|
|
perror_with_name (buffer);
|
|
}
|
|
supply_register (regno, buf);
|
|
}
|
|
}
|
|
#endif /* 0 */
|