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133 lines
3.2 KiB
C
133 lines
3.2 KiB
C
/* Low level MIPS interface to ptrace, for GDB when running under Unix.
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Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.
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Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
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and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
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This file is part of GDB.
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GDB is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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GDB is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GDB; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include <mips/inst.h>
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#include "defs.h"
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#include "param.h"
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#include "frame.h"
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#include "inferior.h"
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#include "symtab.h"
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#include "value.h"
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#ifdef USG
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#include <sys/types.h>
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#endif
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#include <sys/param.h>
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#include <sys/dir.h>
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#include <signal.h>
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#include <sys/ioctl.h>
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/* #include <fcntl.h> Can we live without this? */
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#include "gdbcore.h"
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#include <sys/user.h> /* After a.out.h */
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#include <sys/file.h>
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#include <sys/stat.h>
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/* Get all registers from the inferior */
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void
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fetch_inferior_registers ()
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{
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register int regno;
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register unsigned int regaddr;
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char buf[MAX_REGISTER_RAW_SIZE];
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register int i;
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registers_fetched ();
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for (regno = 1; regno < NUM_REGS; regno++)
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{
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regaddr = register_addr (regno, 1);
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for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
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{
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*(int *) &buf[i] = ptrace (3, inferior_pid, regaddr, 0);
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regaddr += sizeof (int);
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}
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supply_register (regno, buf);
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}
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}
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/* Store our register values back into the inferior.
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If REGNO is -1, do this for all registers.
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Otherwise, REGNO specifies which register (so we can save time). */
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store_inferior_registers (regno)
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int regno;
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{
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register unsigned int regaddr;
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char buf[80];
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if (regno == 0)
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return;
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if (regno > 0)
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{
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regaddr = register_addr (regno, 1);
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errno = 0;
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ptrace (6, inferior_pid, regaddr, read_register (regno));
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if (errno != 0)
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{
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sprintf (buf, "writing register number %d", regno);
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perror_with_name (buf);
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}
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}
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else
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{
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for (regno = 1; regno < NUM_REGS; regno++)
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{
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if (regno == 32 || regno == 35 || regno == 36 || regno == 71)
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continue;
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regaddr = register_addr (regno, 1);
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errno = 0;
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ptrace (6, inferior_pid, regaddr, read_register (regno));
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if (errno != 0)
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{
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sprintf (buf, "writing all regs, number %d", regno);
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perror_with_name (buf);
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}
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}
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}
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}
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void
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fetch_core_registers ()
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{
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register int regno;
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int val;
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for (regno = 1; regno < NUM_REGS; regno++) {
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char buf[MAX_REGISTER_RAW_SIZE];
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val = bfd_seek (core_bfd, register_addr (regno, 0));
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if (val < 0 || (val = bfd_read (core_bfd, buf, sizeof buf)) < 0) {
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char buffer[50];
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strcpy (buffer, "Reading register ");
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strcat (buffer, reg_names[regno]);
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perror_with_name (buffer);
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}
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supply_register (regno, buf);
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}
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}
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