1999-04-16 03:35:26 +02:00
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/* Low level Unix child interface to ptrace, for GDB when running under Unix.
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2002-01-19 04:32:43 +01:00
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Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
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2004-07-31 07:05:05 +02:00
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1998, 1999, 2000, 2001, 2002, 2004
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1999-04-16 03:35:26 +02:00
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Free Software Foundation, Inc.
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1999-07-07 22:19:36 +02:00
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This file is part of GDB.
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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This program 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 2 of the License, or
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(at your option) any later version.
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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This program 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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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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1999-04-16 03:35:26 +02:00
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#include "defs.h"
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#include "frame.h"
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#include "inferior.h"
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#include "target.h"
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#include "gdb_string.h"
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2001-03-01 02:39:22 +01:00
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#include "regcache.h"
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1999-12-22 22:45:38 +01:00
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2000-02-09 09:52:47 +01:00
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#include "gdb_wait.h"
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1999-12-22 22:45:38 +01:00
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1999-04-16 03:35:26 +02:00
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#include "command.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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2000-05-25 08:49:01 +02:00
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#include "gdb_dirent.h"
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1999-04-16 03:35:26 +02:00
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#include <signal.h>
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#include <sys/ioctl.h>
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#ifdef HAVE_PTRACE_H
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1999-07-07 22:19:36 +02:00
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#include <ptrace.h>
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1999-04-16 03:35:26 +02:00
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#else
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1999-07-07 22:19:36 +02:00
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#ifdef HAVE_SYS_PTRACE_H
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#include <sys/ptrace.h>
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#endif
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1999-04-16 03:35:26 +02:00
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#endif
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#if !defined (PT_READ_I)
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#define PT_READ_I 1 /* Read word from text space */
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#endif
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#if !defined (PT_READ_D)
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#define PT_READ_D 2 /* Read word from data space */
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#endif
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#if !defined (PT_READ_U)
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#define PT_READ_U 3 /* Read word from kernel user struct */
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#endif
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#if !defined (PT_WRITE_I)
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#define PT_WRITE_I 4 /* Write word to text space */
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#endif
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#if !defined (PT_WRITE_D)
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#define PT_WRITE_D 5 /* Write word to data space */
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#endif
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#if !defined (PT_WRITE_U)
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#define PT_WRITE_U 6 /* Write word to kernel user struct */
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#endif
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#if !defined (PT_CONTINUE)
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#define PT_CONTINUE 7 /* Continue after signal */
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#endif
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#if !defined (PT_STEP)
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#define PT_STEP 9 /* Set flag for single stepping */
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#endif
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#if !defined (PT_KILL)
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#define PT_KILL 8 /* Send child a SIGKILL signal */
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#endif
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#include "gdbcore.h"
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2004-08-06 22:47:25 +02:00
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#ifdef HAVE_SYS_FILE_H
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1999-04-16 03:35:26 +02:00
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#include <sys/file.h>
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#endif
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#if 0
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/* Don't think this is used anymore. On the sequent (not sure whether it's
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dynix or ptx or both), it is included unconditionally by sys/user.h and
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not protected against multiple inclusion. */
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#include "gdb_stat.h"
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#endif
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#if !defined (FETCH_INFERIOR_REGISTERS)
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#include <sys/user.h> /* Probably need to poke the user structure */
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#endif /* !FETCH_INFERIOR_REGISTERS */
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#if !defined (CHILD_XFER_MEMORY)
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2000-05-28 03:12:42 +02:00
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static void udot_info (char *, int);
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1999-04-16 03:35:26 +02:00
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#endif
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#if !defined (FETCH_INFERIOR_REGISTERS)
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2000-05-28 03:12:42 +02:00
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static void fetch_register (int);
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static void store_register (int);
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1999-04-16 03:35:26 +02:00
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#endif
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2000-05-28 03:12:42 +02:00
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void _initialize_infptrace (void);
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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1999-04-16 03:35:26 +02:00
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/* This function simply calls ptrace with the given arguments.
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It exists so that all calls to ptrace are isolated in this
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machine-dependent file. */
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int
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2004-08-15 01:14:34 +02:00
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call_ptrace (int request, int pid, PTRACE_TYPE_ARG3 addr, int data)
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1999-04-16 03:35:26 +02:00
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{
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int pt_status = 0;
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#if 0
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int saved_errno;
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printf ("call_ptrace(request=%d, pid=%d, addr=0x%x, data=0x%x)",
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request, pid, addr, data);
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#endif
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#if defined(PT_SETTRC)
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/* If the parent can be told to attach to us, try to do it. */
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1999-07-07 22:19:36 +02:00
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if (request == PT_SETTRC)
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{
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errno = 0;
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2004-08-11 11:17:39 +02:00
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#ifndef PTRACE_TYPE_ARG5
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1999-12-22 22:45:38 +01:00
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pt_status = ptrace (PT_SETTRC, pid, addr, data);
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#else
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1999-07-07 22:19:36 +02:00
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/* Deal with HPUX 8.0 braindamage. We never use the
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calls which require the fifth argument. */
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1999-12-22 22:45:38 +01:00
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pt_status = ptrace (PT_SETTRC, pid, addr, data, 0);
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1999-04-16 03:35:26 +02:00
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#endif
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1999-07-07 22:19:36 +02:00
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if (errno)
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perror_with_name ("ptrace");
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1999-04-16 03:35:26 +02:00
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#if 0
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1999-07-07 22:19:36 +02:00
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printf (" = %d\n", pt_status);
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1999-04-16 03:35:26 +02:00
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#endif
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1999-07-07 22:19:36 +02:00
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if (pt_status < 0)
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return pt_status;
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else
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return parent_attach_all (pid, addr, data);
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}
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1999-04-16 03:35:26 +02:00
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#endif
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#if defined(PT_CONTIN1)
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/* On HPUX, PT_CONTIN1 is a form of continue that preserves pending
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signals. If it's available, use it. */
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if (request == PT_CONTINUE)
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request = PT_CONTIN1;
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#endif
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#if defined(PT_SINGLE1)
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/* On HPUX, PT_SINGLE1 is a form of step that preserves pending
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signals. If it's available, use it. */
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if (request == PT_STEP)
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request = PT_SINGLE1;
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#endif
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#if 0
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saved_errno = errno;
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errno = 0;
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#endif
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2004-08-11 11:17:39 +02:00
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#ifndef PTRACE_TYPE_ARG5
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1999-12-22 22:45:38 +01:00
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pt_status = ptrace (request, pid, addr, data);
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#else
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1999-07-07 22:19:36 +02:00
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/* Deal with HPUX 8.0 braindamage. We never use the
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calls which require the fifth argument. */
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1999-12-22 22:45:38 +01:00
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pt_status = ptrace (request, pid, addr, data, 0);
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1999-04-16 03:35:26 +02:00
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#endif
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1999-12-22 22:45:38 +01:00
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1999-04-16 03:35:26 +02:00
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#if 0
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if (errno)
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printf (" [errno = %d]", errno);
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errno = saved_errno;
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printf (" = 0x%x\n", pt_status);
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#endif
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return pt_status;
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}
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2004-08-11 11:17:39 +02:00
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#if defined (DEBUG_PTRACE) || defined (PTRACE_TYPE_ARG5)
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1999-04-16 03:35:26 +02:00
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/* For the rest of the file, use an extra level of indirection */
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/* This lets us breakpoint usefully on call_ptrace. */
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#define ptrace call_ptrace
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#endif
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/* Wait for a process to finish, possibly running a target-specific
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hook before returning. */
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int
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2001-05-04 06:15:33 +02:00
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ptrace_wait (ptid_t ptid, int *status)
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1999-04-16 03:35:26 +02:00
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{
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int wstate;
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wstate = wait (status);
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2001-05-04 06:15:33 +02:00
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target_post_wait (pid_to_ptid (wstate), *status);
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1999-04-16 03:35:26 +02:00
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return wstate;
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}
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2003-08-17 20:22:25 +02:00
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#ifndef KILL_INFERIOR
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1999-04-16 03:35:26 +02:00
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void
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2000-07-30 03:48:28 +02:00
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kill_inferior (void)
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1999-04-16 03:35:26 +02:00
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{
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int status;
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2001-05-04 06:15:33 +02:00
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int pid = PIDGET (inferior_ptid);
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1999-04-16 03:35:26 +02:00
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2001-05-04 06:15:33 +02:00
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if (pid == 0)
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1999-04-16 03:35:26 +02:00
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return;
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/* This once used to call "kill" to kill the inferior just in case
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the inferior was still running. As others have noted in the past
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(kingdon) there shouldn't be any way to get here if the inferior
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is still running -- else there's a major problem elsewere in gdb
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and it needs to be fixed.
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The kill call causes problems under hpux10, so it's been removed;
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if this causes problems we'll deal with them as they arise. */
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2004-08-15 01:14:34 +02:00
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ptrace (PT_KILL, pid, (PTRACE_TYPE_ARG3) 0, 0);
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2001-05-04 06:15:33 +02:00
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ptrace_wait (null_ptid, &status);
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1999-04-16 03:35:26 +02:00
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target_mourn_inferior ();
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}
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2003-08-17 20:22:25 +02:00
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#endif /* KILL_INFERIOR */
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1999-04-16 03:35:26 +02:00
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#ifndef CHILD_RESUME
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/* Resume execution of the inferior process.
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If STEP is nonzero, single-step it.
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If SIGNAL is nonzero, give it that signal. */
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void
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2001-05-04 06:15:33 +02:00
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child_resume (ptid_t ptid, int step, enum target_signal signal)
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1999-04-16 03:35:26 +02:00
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{
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2001-05-04 06:15:33 +02:00
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int pid = PIDGET (ptid);
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1999-04-16 03:35:26 +02:00
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errno = 0;
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if (pid == -1)
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/* Resume all threads. */
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/* I think this only gets used in the non-threaded case, where "resume
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2001-05-04 06:15:33 +02:00
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all threads" and "resume inferior_ptid" are the same. */
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pid = PIDGET (inferior_ptid);
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1999-04-16 03:35:26 +02:00
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2004-08-15 01:14:34 +02:00
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/* An address of (PTRACE_TYPE_ARG3)1 tells ptrace to continue from where
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1999-04-16 03:35:26 +02:00
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it was. (If GDB wanted it to start some other way, we have already
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written a new PC value to the child.)
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If this system does not support PT_STEP, a higher level function will
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have called single_step() to transmute the step request into a
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continue request (by setting breakpoints on all possible successor
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instructions), so we don't have to worry about that here. */
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if (step)
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{
|
2001-03-20 19:16:28 +01:00
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if (SOFTWARE_SINGLE_STEP_P ())
|
2001-02-25 05:45:12 +01:00
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internal_error (__FILE__, __LINE__, "failed internal consistency check"); /* Make sure this doesn't happen. */
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1999-04-16 03:35:26 +02:00
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else
|
2004-08-15 01:14:34 +02:00
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ptrace (PT_STEP, pid, (PTRACE_TYPE_ARG3) 1,
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1999-04-16 03:35:26 +02:00
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target_signal_to_host (signal));
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}
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else
|
2004-08-15 01:14:34 +02:00
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ptrace (PT_CONTINUE, pid, (PTRACE_TYPE_ARG3) 1,
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1999-04-16 03:35:26 +02:00
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target_signal_to_host (signal));
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if (errno)
|
1999-12-22 22:45:38 +01:00
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{
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perror_with_name ("ptrace");
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}
|
1999-04-16 03:35:26 +02:00
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}
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#endif /* CHILD_RESUME */
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/* Start debugging the process whose number is PID. */
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int
|
2000-07-30 03:48:28 +02:00
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attach (int pid)
|
1999-04-16 03:35:26 +02:00
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{
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errno = 0;
|
2004-06-08 21:58:15 +02:00
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|
|
#ifndef PT_ATTACH
|
|
|
|
|
#ifdef PTRACE_ATTACH
|
|
|
|
|
#define PT_ATTACH PTRACE_ATTACH
|
|
|
|
|
#endif
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef PT_ATTACH
|
2004-08-15 01:14:34 +02:00
|
|
|
|
ptrace (PT_ATTACH, pid, (PTRACE_TYPE_ARG3) 0, 0);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (errno)
|
|
|
|
|
perror_with_name ("ptrace");
|
|
|
|
|
attach_flag = 1;
|
|
|
|
|
return pid;
|
2004-06-08 21:58:15 +02:00
|
|
|
|
#else
|
|
|
|
|
error ("This system does not support attaching to a process");
|
|
|
|
|
#endif
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Stop debugging the process whose number is PID
|
|
|
|
|
and continue it with signal number SIGNAL.
|
|
|
|
|
SIGNAL = 0 means just continue it. */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
detach (int signal)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
errno = 0;
|
2004-06-08 21:58:15 +02:00
|
|
|
|
#ifndef PT_DETACH
|
|
|
|
|
#ifdef PTRACE_DETACH
|
|
|
|
|
#define PT_DETACH PTRACE_DETACH
|
|
|
|
|
#endif
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef PT_DETACH
|
2004-08-15 01:14:34 +02:00
|
|
|
|
ptrace (PT_DETACH, PIDGET (inferior_ptid), (PTRACE_TYPE_ARG3) 1,
|
2001-05-04 06:15:33 +02:00
|
|
|
|
signal);
|
2003-05-22 17:46:20 +02:00
|
|
|
|
if (errno)
|
|
|
|
|
print_sys_errmsg ("ptrace", errno);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
attach_flag = 0;
|
2004-06-08 21:58:15 +02:00
|
|
|
|
#else
|
|
|
|
|
error ("This system does not support detaching from a process");
|
|
|
|
|
#endif
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Default the type of the ptrace transfer to int. */
|
|
|
|
|
#ifndef PTRACE_XFER_TYPE
|
|
|
|
|
#define PTRACE_XFER_TYPE int
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#if !defined (FETCH_INFERIOR_REGISTERS)
|
|
|
|
|
|
|
|
|
|
#if !defined (offsetof)
|
|
|
|
|
#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* U_REGS_OFFSET is the offset of the registers within the u area. */
|
|
|
|
|
#if !defined (U_REGS_OFFSET)
|
|
|
|
|
#define U_REGS_OFFSET \
|
2001-05-04 06:15:33 +02:00
|
|
|
|
ptrace (PT_READ_U, PIDGET (inferior_ptid), \
|
2004-08-15 01:14:34 +02:00
|
|
|
|
(PTRACE_TYPE_ARG3) (offsetof (struct user, u_ar0)), 0) \
|
1999-04-16 03:35:26 +02:00
|
|
|
|
- KERNEL_U_ADDR
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Fetch one register. */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
fetch_register (int regno)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
/* This isn't really an address. But ptrace thinks of it as one. */
|
|
|
|
|
CORE_ADDR regaddr;
|
1999-07-07 22:19:36 +02:00
|
|
|
|
char mess[128]; /* For messages */
|
2003-09-14 Andrew Cagney <cagney@redhat.com>
* alpha-nat.c: Remove some occurances of "register".
* alpha-tdep.c, arm-tdep.c, blockframe.c, breakpoint.c: Ditto.
* buildsym.c, c-typeprint.c, c-valprint.c, coffread.c: Ditto.
* corefile.c, cp-support.c, cp-valprint.c, cris-tdep.c: Ditto.
* dbxread.c, dcache.c, dwarf2read.c, elfread.c: Ditto.
* environ.c, eval.c, event-top.c, f-typeprint.c: Ditto.
* f-valprint.c, findvar.c, frame.c, gdbtypes.c: Ditto.
* h8300-tdep.c, hppa-tdep.c, hppab-nat.c, hppah-nat.c: Ditto.
* hppam3-nat.c, hpread.c, ia64-aix-nat.c, ia64-linux-nat.c: Ditto.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Ditto.
* infttrace.c, irix5-nat.c, jv-typeprint.c: Ditto.
* jv-valprint.c, m68k-tdep.c, m68klinux-nat.c, main.c: Ditto.
* mdebugread.c, minsyms.c, mips-linux-tdep.c: Ditto.
* mips-nat.c, mips-tdep.c, mipsread.c, mipsv4-nat.c: Ditto.
* ns32k-tdep.c, objfiles.c, p-typeprint.c: Ditto.
* p-valprint.c, ppc-linux-nat.c, printcmd.c: Ditto.
* remote-mips.c, remote-vx.c, rs6000-nat.c: Ditto.
* rs6000-tdep.c, scm-exp.c, sh-tdep.c, sh64-tdep.c: Ditto.
* solib.c, somread.c, source.c, sparc-tdep.c: Ditto.
* stabsread.c, stack.c, standalone.c, symfile.c: Ditto.
* symmisc.c, symtab.c, top.c, tracepoint.c: Ditto.
* typeprint.c, utils.c, valarith.c, valops.c: Ditto.
* values.c, vax-tdep.c, xcoffread.c: Ditto.
2003-09-14 18:32:14 +02:00
|
|
|
|
int i;
|
1999-07-07 22:19:36 +02:00
|
|
|
|
unsigned int offset; /* Offset of registers within the u area. */
|
2003-05-08 Andrew Cagney <cagney@redhat.com>
* gdbarch.sh: Delete references to MAX_REGISTER_RAW_SIZE.
* gdbarch.h: Re-generate.
* defs.h (MAX_REGISTER_RAW_SIZE): Delete macro.
(legacy_max_register_raw_size): Delete declaration.
* regcache.c (legacy_max_register_raw_size): Delete function.
* valops.c: Replace MAX_REGISTER_RAW_SIZE with MAX_REGISTER_SIZE.
* target.c, stack.c, sparc-tdep.c, sh-tdep.c: Update.
* rs6000-tdep.c, rs6000-nat.c, remote.c, remote-sim.c: Update.
* remote-rdp.c, remote-array.c, regcache.c: Update.
* ppc-linux-nat.c, monitor.c, mn10300-tdep.c: Update.
* mips-tdep.c, mips-linux-tdep.c, m68klinux-nat.c: Update.
* infptrace.c, ia64-tdep.c, i386-tdep.c, frame.c: Update.
* findvar.c, dwarf2cfi.c: Update.
Index: tui/ChangeLog
2003-05-08 Andrew Cagney <cagney@redhat.com>
* tuiRegs.c: Use MAX_REGISTER_SIZE instead of
MAX_REGISTER_RAW_SIZE.
Index: mi/ChangeLog
2003-05-08 Andrew Cagney <cagney@redhat.com>
* mi-main.c (register_changed_p): Use MAX_REGISTER_SIZE instead of
MAX_REGISTER_RAW_SIZE.
2003-05-08 22:52:49 +02:00
|
|
|
|
char buf[MAX_REGISTER_SIZE];
|
1999-12-22 22:45:38 +01:00
|
|
|
|
int tid;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
if (CANNOT_FETCH_REGISTER (regno))
|
|
|
|
|
{
|
2004-07-31 07:05:05 +02:00
|
|
|
|
regcache_raw_supply (current_regcache, regno, NULL);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
1999-12-22 22:45:38 +01:00
|
|
|
|
/* Overload thread id onto process id */
|
2001-05-04 06:15:33 +02:00
|
|
|
|
if ((tid = TIDGET (inferior_ptid)) == 0)
|
|
|
|
|
tid = PIDGET (inferior_ptid); /* no thread id, just use process id */
|
1999-12-22 22:45:38 +01:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
offset = U_REGS_OFFSET;
|
|
|
|
|
|
|
|
|
|
regaddr = register_addr (regno, offset);
|
2004-08-02 Andrew Cagney <cagney@gnu.org>
Replace DEPRECATED_REGISTER_RAW_SIZE with register_size.
* rs6000-tdep.c (rs6000_push_dummy_call)
(rs6000_extract_return_value): Use register_size.
* xstormy16-tdep.c (xstormy16_get_saved_register)
(xstormy16_extract_return_value): Ditto.
* valops.c (value_assign): Ditto.
* v850ice.c (v850ice_fetch_registers, v850ice_store_registers):
* v850-tdep.c (v850_extract_return_value): Ditto.
* tracepoint.c (collect_symbol): Ditto.
* target.c (debug_print_register): Ditto.
* stack.c (frame_info): Ditto.
* rs6000-nat.c (ARCH64, fetch_register, store_register): Ditto.
* rom68k-rom.c (rom68k_supply_one_register): Ditto.
* remote.c (struct packet_reg, remote_wait, remote_async_wait)
(store_register_using_P): Ditto.
* remote-vxmips.c (vx_read_register, vx_write_register): Ditto.
* remote-sim.c (gdbsim_fetch_register, gdbsim_store_register): Ditto.
* remote-mips.c (mips_wait, mips_fetch_registers): Ditto.
* remote-e7000.c (fetch_regs_from_dump, sub2_from_pc): Ditto.
* regcache.c (deprecated_read_register_bytes)
(deprecated_write_register_bytes, read_register)
(write_register): Ditto.
* ppc-linux-nat.c (fetch_altivec_register, fetch_register)
(supply_vrregset, store_altivec_register, fill_vrregset): Ditto.
* monitor.c (monitor_supply_register, monitor_fetch_register)
(monitor_store_register): Ditto.
* mn10300-tdep.c (mn10300_pop_frame_regular)
(mn10300_print_register): Ditto.
* mipsv4-nat.c (fill_fpregset): Ditto.
* mips-linux-tdep.c (supply_32bit_reg, fill_fpregset)
(mips64_fill_fpregset): Ditto.
* mi/mi-main.c (register_changed_p, get_register)
(mi_cmd_data_write_register_values): Ditto.
* lynx-nat.c (fetch_inferior_registers, store_inferior_registers):
* irix5-nat.c (fill_gregset, fetch_core_registers):
* infrun.c (write_inferior_status_register): Ditto.
* infptrace.c (fetch_register, store_register): Ditto.
* infcmd.c (default_print_registers_info): Ditto.
* ia64-linux-nat.c (COPY_REG, fill_fpregset): Ditto.
* ia64-aix-nat.c (COPY_REG, fill_gregset): Ditto.
* i386gnu-nat.c (gnu_store_registers, fill): Ditto.
* hpux-thread.c (hpux_thread_fetch_registers)
(hpux_thread_store_registers): Ditto.
* hppah-nat.c (store_inferior_registers, fetch_register):
* findvar.c (value_from_register): Ditto.
* dve3900-rom.c (fetch_bitmapped_register):
* cris-tdep.c (cris_gdbarch_init): Ditto.
* alpha-tdep.h: Ditto.
* aix-thread.c (pd_enable, fill_sprs64, fill_sprs32): Ditto.
2004-08-03 02:57:27 +02:00
|
|
|
|
for (i = 0; i < register_size (current_gdbarch, regno); i += sizeof (PTRACE_XFER_TYPE))
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
errno = 0;
|
1999-12-22 22:45:38 +01:00
|
|
|
|
*(PTRACE_XFER_TYPE *) & buf[i] = ptrace (PT_READ_U, tid,
|
2004-08-15 01:14:34 +02:00
|
|
|
|
(PTRACE_TYPE_ARG3) regaddr, 0);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
regaddr += sizeof (PTRACE_XFER_TYPE);
|
|
|
|
|
if (errno != 0)
|
|
|
|
|
{
|
1999-12-22 22:45:38 +01:00
|
|
|
|
sprintf (mess, "reading register %s (#%d)",
|
|
|
|
|
REGISTER_NAME (regno), regno);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
perror_with_name (mess);
|
|
|
|
|
}
|
|
|
|
|
}
|
2004-07-21 Andrew Cagney <cagney@gnu.org>
Use regcache_raw_supply instead of supply_register.
* regcache.h (supply_register): Delete declaration.
* regcache.c (supply_register): Delete function.
* wince.c (do_child_fetch_inferior_registers): Update.
* win32-nat.c (do_child_fetch_inferior_registers)
(fetch_elf_core_registers): Update.
* v850ice.c (v850ice_fetch_registers): Update.
* thread-db.c (thread_db_store_registers): Update.
* sol-thread.c (sol_thread_store_registers): Update.
* shnbsd-tdep.c (shnbsd_supply_reg): Update.
* rs6000-nat.c (fetch_register): Update.
* rom68k-rom.c (rom68k_supply_one_register): Update.
* remote.c (remote_wait, remote_async_wait): Update.
* remote-st.c (get_hex_regs): Update.
* remote-sim.c (gdbsim_fetch_register): Update.
* remote-sds.c (sds_fetch_registers): Update.
* remote-rdp.c (remote_rdp_fetch_register): Update.
* remote-rdi.c (arm_rdi_fetch_registers): Update.
* remote-mips.c (mips_wait, mips_fetch_registers): Update.
* remote-m32r-sdi.c (m32r_fetch_register): Update.
* remote-hms.c (init_hms_cmds): Update.
* remote-est.c (init_est_cmds): Update.
* remote-e7000.c (get_hex_regs, fetch_regs_from_dump)
(e7000_fetch_registers, sub2_from_pc, e7000_wait): Update.
* ppcnbsd-tdep.c (ppcnbsd_supply_reg, ppcnbsd_supply_fpreg): Update.
* ppc-linux-nat.c (fetch_altivec_register, fetch_spe_register)
(fetch_register, supply_vrregset, supply_vrregset)
(fetch_spe_registers): Update.
* ppc-bdm.c (bdm_ppc_fetch_registers): Update.
* monitor.c (monitor_supply_register): Update.
* mipsv4-nat.c (supply_gregset, supply_fpregset): Update.
* mipsnbsd-tdep.c (mipsnbsd_supply_reg)
(mipsnbsd_supply_fpreg): Update.
* mips-nat.c (fetch_inferior_registers)
(fetch_core_registers): Update.
* mips-linux-tdep.c (supply_32bit_reg, supply_gregset)
(supply_fpregset, mips64_supply_gregset)
(mips64_supply_fpregset): Update.
* m68klinux-nat.c (fetch_register, supply_gregset)
(supply_fpregset): Update.
* m68k-tdep.c (supply_gregset, supply_fpregset): Update.
* m32r-rom.c (init_m32r_cmds, init_mon2000_cmds): Update.
* lynx-nat.c (fetch_inferior_registers, fetch_core_registers): Update.
* irix5-nat.c (supply_gregset, supply_fpregset): Update.
* infptrace.c (fetch_register): Update.
* ia64-linux-nat.c (supply_gregset, supply_fpregset): Update.
* ia64-aix-nat.c (supply_gregset, supply_fpregset): Update.
* i386gnu-nat.c (fetch_fpregs, supply_gregset)
(gnu_fetch_registers, gnu_store_registers): Update.
* i386-nto-tdep.c (i386nto_supply_gregset): Update.
* i386-linux-nat.c (fetch_register, supply_gregset)
(dummy_sse_values): Update.
* hpux-thread.c (hpux_thread_fetch_registers): Update.
* hppah-nat.c (fetch_register): Update.
* hppa-linux-nat.c (fetch_register, supply_gregset)
(supply_fpregset): Update.
* go32-nat.c (fetch_register): Update.
* dve3900-rom.c (fetch_bitmapped_register)
(_initialize_r3900_rom): Update.
* cris-tdep.c (supply_gregset): Update.
* abug-rom.c (init_abug_cmds): Update.
* core-aout.c (fetch_core_registers): Update.
* armnbsd-nat.c (supply_gregset, supply_fparegset)
(fetch_register, fetch_fp_register): Update.
* arm-linux-nat.c (fetch_nwfpe_single, fetch_nwfpe_none)
(fetch_nwfpe_extended, fetch_fpregister, fetch_fpregs)
(fetch_register, fetch_regs, supply_gregset, supply_fpregset): Update.
* alphanbsd-tdep.c (fetch_core_registers): Update.
* alpha-tdep.c (alpha_supply_int_regs, alpha_supply_fp_regs): Update.
* alpha-nat.c (fetch_osf_core_registers)
(fetch_osf_core_registers, fetch_osf_core_registers): Update.
* aix-thread.c (supply_gprs64, supply_reg32, supply_fprs)
(supply_sprs64, supply_sprs32, fetch_regs_kernel_thread): Update.
2004-07-22 03:31:49 +02:00
|
|
|
|
regcache_raw_supply (current_regcache, regno, buf);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Fetch register values from the inferior.
|
|
|
|
|
If REGNO is negative, do this for all registers.
|
|
|
|
|
Otherwise, REGNO specifies which register (so we can save time). */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
fetch_inferior_registers (int regno)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
if (regno >= 0)
|
|
|
|
|
{
|
|
|
|
|
fetch_register (regno);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2001-03-14 00:31:14 +01:00
|
|
|
|
for (regno = 0; regno < NUM_REGS; regno++)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
fetch_register (regno);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Store one register. */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
store_register (int regno)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
/* This isn't really an address. But ptrace thinks of it as one. */
|
|
|
|
|
CORE_ADDR regaddr;
|
1999-07-07 22:19:36 +02:00
|
|
|
|
char mess[128]; /* For messages */
|
2003-09-14 Andrew Cagney <cagney@redhat.com>
* alpha-nat.c: Remove some occurances of "register".
* alpha-tdep.c, arm-tdep.c, blockframe.c, breakpoint.c: Ditto.
* buildsym.c, c-typeprint.c, c-valprint.c, coffread.c: Ditto.
* corefile.c, cp-support.c, cp-valprint.c, cris-tdep.c: Ditto.
* dbxread.c, dcache.c, dwarf2read.c, elfread.c: Ditto.
* environ.c, eval.c, event-top.c, f-typeprint.c: Ditto.
* f-valprint.c, findvar.c, frame.c, gdbtypes.c: Ditto.
* h8300-tdep.c, hppa-tdep.c, hppab-nat.c, hppah-nat.c: Ditto.
* hppam3-nat.c, hpread.c, ia64-aix-nat.c, ia64-linux-nat.c: Ditto.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Ditto.
* infttrace.c, irix5-nat.c, jv-typeprint.c: Ditto.
* jv-valprint.c, m68k-tdep.c, m68klinux-nat.c, main.c: Ditto.
* mdebugread.c, minsyms.c, mips-linux-tdep.c: Ditto.
* mips-nat.c, mips-tdep.c, mipsread.c, mipsv4-nat.c: Ditto.
* ns32k-tdep.c, objfiles.c, p-typeprint.c: Ditto.
* p-valprint.c, ppc-linux-nat.c, printcmd.c: Ditto.
* remote-mips.c, remote-vx.c, rs6000-nat.c: Ditto.
* rs6000-tdep.c, scm-exp.c, sh-tdep.c, sh64-tdep.c: Ditto.
* solib.c, somread.c, source.c, sparc-tdep.c: Ditto.
* stabsread.c, stack.c, standalone.c, symfile.c: Ditto.
* symmisc.c, symtab.c, top.c, tracepoint.c: Ditto.
* typeprint.c, utils.c, valarith.c, valops.c: Ditto.
* values.c, vax-tdep.c, xcoffread.c: Ditto.
2003-09-14 18:32:14 +02:00
|
|
|
|
int i;
|
1999-07-07 22:19:36 +02:00
|
|
|
|
unsigned int offset; /* Offset of registers within the u area. */
|
1999-12-22 22:45:38 +01:00
|
|
|
|
int tid;
|
2003-05-08 Andrew Cagney <cagney@redhat.com>
* gdbarch.sh: Delete references to MAX_REGISTER_RAW_SIZE.
* gdbarch.h: Re-generate.
* defs.h (MAX_REGISTER_RAW_SIZE): Delete macro.
(legacy_max_register_raw_size): Delete declaration.
* regcache.c (legacy_max_register_raw_size): Delete function.
* valops.c: Replace MAX_REGISTER_RAW_SIZE with MAX_REGISTER_SIZE.
* target.c, stack.c, sparc-tdep.c, sh-tdep.c: Update.
* rs6000-tdep.c, rs6000-nat.c, remote.c, remote-sim.c: Update.
* remote-rdp.c, remote-array.c, regcache.c: Update.
* ppc-linux-nat.c, monitor.c, mn10300-tdep.c: Update.
* mips-tdep.c, mips-linux-tdep.c, m68klinux-nat.c: Update.
* infptrace.c, ia64-tdep.c, i386-tdep.c, frame.c: Update.
* findvar.c, dwarf2cfi.c: Update.
Index: tui/ChangeLog
2003-05-08 Andrew Cagney <cagney@redhat.com>
* tuiRegs.c: Use MAX_REGISTER_SIZE instead of
MAX_REGISTER_RAW_SIZE.
Index: mi/ChangeLog
2003-05-08 Andrew Cagney <cagney@redhat.com>
* mi-main.c (register_changed_p): Use MAX_REGISTER_SIZE instead of
MAX_REGISTER_RAW_SIZE.
2003-05-08 22:52:49 +02:00
|
|
|
|
char buf[MAX_REGISTER_SIZE];
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
if (CANNOT_STORE_REGISTER (regno))
|
|
|
|
|
{
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
1999-12-22 22:45:38 +01:00
|
|
|
|
/* Overload thread id onto process id */
|
2001-05-04 06:15:33 +02:00
|
|
|
|
if ((tid = TIDGET (inferior_ptid)) == 0)
|
|
|
|
|
tid = PIDGET (inferior_ptid); /* no thread id, just use process id */
|
1999-12-22 22:45:38 +01:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
offset = U_REGS_OFFSET;
|
|
|
|
|
|
|
|
|
|
regaddr = register_addr (regno, offset);
|
2001-11-20 00:59:55 +01:00
|
|
|
|
|
|
|
|
|
/* Put the contents of regno into a local buffer */
|
2004-07-23 Andrew Cagney <cagney@gnu.org>
Use regcache_raw_collect instead of regcache_collect.
* regcache.h (regcache_collect): Delete declaration.
* regcache.c (regcache_colect): Delete function.
* win32-nat.c (do_child_store_inferior_registers): Update.
* sol-thread.c (sol_thread_store_registers): Update.
* shnbsd-tdep.c (shnbsd_fill_reg): Update.
* rs6000-nat.c (store_register): Update.
* remote.c (store_register_using_P, remote_store_registers): Update.
* ppcnbsd-tdep.c (ppcnbsd_fill_reg): Update.
* ppc-linux-nat.c (store_altivec_register, store_spe_register)
(fill_vrregset, store_spe_registers, fill_gregset)
(fill_gregset): Update.
* nto-procfs.c (procfs_store_registers): Update.
* mipsnbsd-tdep.c (mipsnbsd_fill_reg): Update.
* mips-linux-tdep.c (fill_gregset, mips64_fill_gregset): Update.
* m68klinux-nat.c (store_register, fill_gregset): Update.
* m68k-tdep.c (fill_gregset): Update.
* infptrace.c (store_register): Update.
* i386-nto-tdep.c (i386nto_regset_fill): Update.
* i386-linux-nat.c (store_register, fill_gregset): Update.
* hppa-linux-nat.c (fill_gregset): Update.
* go32-nat.c (store_register): Update.
* armnbsd-nat.c (store_register, store_regs, store_fp_register)
(store_fp_regs): Update.
* arm-linux-nat.c (store_nwfpe_single, store_nwfpe_double)
(store_nwfpe_extended, store_fpregister, store_fpregs)
(store_register, store_regs, fill_gregset, fill_fpregset): Update.
* alpha-tdep.c (alpha_fill_int_regs, alpha_fill_fp_regs): Update.
* aix-thread.c (fill_gprs64, fill_fprs, fill_sprs64, fill_sprs32)
(store_regs_user_thread, store_regs_kernel_thread): Update.
2004-07-24 03:00:21 +02:00
|
|
|
|
regcache_raw_collect (current_regcache, regno, buf);
|
2001-11-20 00:59:55 +01:00
|
|
|
|
|
|
|
|
|
/* Store the local buffer into the inferior a chunk at the time. */
|
2004-08-02 Andrew Cagney <cagney@gnu.org>
Replace DEPRECATED_REGISTER_RAW_SIZE with register_size.
* rs6000-tdep.c (rs6000_push_dummy_call)
(rs6000_extract_return_value): Use register_size.
* xstormy16-tdep.c (xstormy16_get_saved_register)
(xstormy16_extract_return_value): Ditto.
* valops.c (value_assign): Ditto.
* v850ice.c (v850ice_fetch_registers, v850ice_store_registers):
* v850-tdep.c (v850_extract_return_value): Ditto.
* tracepoint.c (collect_symbol): Ditto.
* target.c (debug_print_register): Ditto.
* stack.c (frame_info): Ditto.
* rs6000-nat.c (ARCH64, fetch_register, store_register): Ditto.
* rom68k-rom.c (rom68k_supply_one_register): Ditto.
* remote.c (struct packet_reg, remote_wait, remote_async_wait)
(store_register_using_P): Ditto.
* remote-vxmips.c (vx_read_register, vx_write_register): Ditto.
* remote-sim.c (gdbsim_fetch_register, gdbsim_store_register): Ditto.
* remote-mips.c (mips_wait, mips_fetch_registers): Ditto.
* remote-e7000.c (fetch_regs_from_dump, sub2_from_pc): Ditto.
* regcache.c (deprecated_read_register_bytes)
(deprecated_write_register_bytes, read_register)
(write_register): Ditto.
* ppc-linux-nat.c (fetch_altivec_register, fetch_register)
(supply_vrregset, store_altivec_register, fill_vrregset): Ditto.
* monitor.c (monitor_supply_register, monitor_fetch_register)
(monitor_store_register): Ditto.
* mn10300-tdep.c (mn10300_pop_frame_regular)
(mn10300_print_register): Ditto.
* mipsv4-nat.c (fill_fpregset): Ditto.
* mips-linux-tdep.c (supply_32bit_reg, fill_fpregset)
(mips64_fill_fpregset): Ditto.
* mi/mi-main.c (register_changed_p, get_register)
(mi_cmd_data_write_register_values): Ditto.
* lynx-nat.c (fetch_inferior_registers, store_inferior_registers):
* irix5-nat.c (fill_gregset, fetch_core_registers):
* infrun.c (write_inferior_status_register): Ditto.
* infptrace.c (fetch_register, store_register): Ditto.
* infcmd.c (default_print_registers_info): Ditto.
* ia64-linux-nat.c (COPY_REG, fill_fpregset): Ditto.
* ia64-aix-nat.c (COPY_REG, fill_gregset): Ditto.
* i386gnu-nat.c (gnu_store_registers, fill): Ditto.
* hpux-thread.c (hpux_thread_fetch_registers)
(hpux_thread_store_registers): Ditto.
* hppah-nat.c (store_inferior_registers, fetch_register):
* findvar.c (value_from_register): Ditto.
* dve3900-rom.c (fetch_bitmapped_register):
* cris-tdep.c (cris_gdbarch_init): Ditto.
* alpha-tdep.h: Ditto.
* aix-thread.c (pd_enable, fill_sprs64, fill_sprs32): Ditto.
2004-08-03 02:57:27 +02:00
|
|
|
|
for (i = 0; i < register_size (current_gdbarch, regno); i += sizeof (PTRACE_XFER_TYPE))
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
errno = 0;
|
2004-08-15 01:14:34 +02:00
|
|
|
|
ptrace (PT_WRITE_U, tid, (PTRACE_TYPE_ARG3) regaddr,
|
2001-11-20 00:59:55 +01:00
|
|
|
|
*(PTRACE_XFER_TYPE *) (buf + i));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
regaddr += sizeof (PTRACE_XFER_TYPE);
|
|
|
|
|
if (errno != 0)
|
|
|
|
|
{
|
1999-12-22 22:45:38 +01:00
|
|
|
|
sprintf (mess, "writing register %s (#%d)",
|
|
|
|
|
REGISTER_NAME (regno), regno);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
perror_with_name (mess);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Store our register values back into the inferior.
|
|
|
|
|
If REGNO is negative, do this for all registers.
|
|
|
|
|
Otherwise, REGNO specifies which register (so we can save time). */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
store_inferior_registers (int regno)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
if (regno >= 0)
|
|
|
|
|
{
|
|
|
|
|
store_register (regno);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2001-03-14 00:31:14 +01:00
|
|
|
|
for (regno = 0; regno < NUM_REGS; regno++)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
store_register (regno);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif /* !defined (FETCH_INFERIOR_REGISTERS). */
|
|
|
|
|
|
|
|
|
|
|
2002-01-08 01:59:31 +01:00
|
|
|
|
/* Set an upper limit on alloca. */
|
|
|
|
|
#ifndef GDB_MAX_ALLOCA
|
|
|
|
|
#define GDB_MAX_ALLOCA 0x1000
|
|
|
|
|
#endif
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#if !defined (CHILD_XFER_MEMORY)
|
|
|
|
|
/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory
|
2001-10-21 16:53:46 +02:00
|
|
|
|
in the NEW_SUN_PTRACE case. It ought to be straightforward. But
|
|
|
|
|
it appears that writing did not write the data that I specified. I
|
|
|
|
|
cannot understand where it got the data that it actually did write. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2001-10-21 16:53:46 +02:00
|
|
|
|
/* Copy LEN bytes to or from inferior's memory starting at MEMADDR to
|
|
|
|
|
debugger memory starting at MYADDR. Copy to inferior if WRITE is
|
|
|
|
|
nonzero. TARGET is ignored.
|
1999-07-07 22:19:36 +02:00
|
|
|
|
|
2001-10-21 16:53:46 +02:00
|
|
|
|
Returns the length copied, which is either the LEN argument or
|
|
|
|
|
zero. This xfer function does not do partial moves, since
|
|
|
|
|
child_ops doesn't allow memory operations to cross below us in the
|
|
|
|
|
target stack anyway. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
int
|
2000-09-09 03:38:49 +02:00
|
|
|
|
child_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
|
2002-01-19 04:32:43 +01:00
|
|
|
|
struct mem_attrib *attrib, struct target_ops *target)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2001-10-21 16:53:46 +02:00
|
|
|
|
int i;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Round starting address down to longword boundary. */
|
2001-10-21 16:53:46 +02:00
|
|
|
|
CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (PTRACE_XFER_TYPE);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Round ending address up; get number of longwords that makes. */
|
2001-10-21 16:53:46 +02:00
|
|
|
|
int count = ((((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1)
|
|
|
|
|
/ sizeof (PTRACE_XFER_TYPE));
|
2002-01-08 01:59:31 +01:00
|
|
|
|
int alloc = count * sizeof (PTRACE_XFER_TYPE);
|
|
|
|
|
PTRACE_XFER_TYPE *buffer;
|
|
|
|
|
struct cleanup *old_chain = NULL;
|
|
|
|
|
|
2002-11-09 00:48:38 +01:00
|
|
|
|
#ifdef PT_IO
|
|
|
|
|
/* OpenBSD 3.1, NetBSD 1.6 and FreeBSD 5.0 have a new PT_IO request
|
|
|
|
|
that promises to be much more efficient in reading and writing
|
|
|
|
|
data in the traced process's address space. */
|
|
|
|
|
|
|
|
|
|
{
|
|
|
|
|
struct ptrace_io_desc piod;
|
|
|
|
|
|
|
|
|
|
/* NOTE: We assume that there are no distinct address spaces for
|
|
|
|
|
instruction and data. */
|
|
|
|
|
piod.piod_op = write ? PIOD_WRITE_D : PIOD_READ_D;
|
|
|
|
|
piod.piod_offs = (void *) memaddr;
|
|
|
|
|
piod.piod_addr = myaddr;
|
|
|
|
|
piod.piod_len = len;
|
|
|
|
|
|
|
|
|
|
if (ptrace (PT_IO, PIDGET (inferior_ptid), (caddr_t) &piod, 0) == -1)
|
|
|
|
|
{
|
|
|
|
|
/* If the PT_IO request is somehow not supported, fallback on
|
|
|
|
|
using PT_WRITE_D/PT_READ_D. Otherwise we will return zero
|
|
|
|
|
to indicate failure. */
|
|
|
|
|
if (errno != EINVAL)
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Return the actual number of bytes read or written. */
|
|
|
|
|
return piod.piod_len;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Allocate buffer of that many longwords. */
|
2002-01-08 01:59:31 +01:00
|
|
|
|
if (len < GDB_MAX_ALLOCA)
|
|
|
|
|
{
|
|
|
|
|
buffer = (PTRACE_XFER_TYPE *) alloca (alloc);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
buffer = (PTRACE_XFER_TYPE *) xmalloc (alloc);
|
|
|
|
|
old_chain = make_cleanup (xfree, buffer);
|
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
if (write)
|
|
|
|
|
{
|
2001-10-21 16:53:46 +02:00
|
|
|
|
/* Fill start and end extra bytes of buffer with existing memory
|
|
|
|
|
data. */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (addr != memaddr || len < (int) sizeof (PTRACE_XFER_TYPE))
|
|
|
|
|
{
|
|
|
|
|
/* Need part of initial word -- fetch it. */
|
2001-05-04 06:15:33 +02:00
|
|
|
|
buffer[0] = ptrace (PT_READ_I, PIDGET (inferior_ptid),
|
2004-08-15 01:14:34 +02:00
|
|
|
|
(PTRACE_TYPE_ARG3) addr, 0);
|
1999-07-07 22:19:36 +02:00
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2001-10-21 16:53:46 +02:00
|
|
|
|
if (count > 1) /* FIXME, avoid if even boundary. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2001-10-21 16:53:46 +02:00
|
|
|
|
buffer[count - 1] =
|
|
|
|
|
ptrace (PT_READ_I, PIDGET (inferior_ptid),
|
2004-08-15 01:14:34 +02:00
|
|
|
|
((PTRACE_TYPE_ARG3)
|
2001-10-21 16:53:46 +02:00
|
|
|
|
(addr + (count - 1) * sizeof (PTRACE_XFER_TYPE))), 0);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
2001-10-21 16:53:46 +02:00
|
|
|
|
/* Copy data to be written over corresponding part of buffer. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
memcpy ((char *) buffer + (memaddr & (sizeof (PTRACE_XFER_TYPE) - 1)),
|
2001-10-21 16:53:46 +02:00
|
|
|
|
myaddr, len);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* Write the entire buffer. */
|
|
|
|
|
for (i = 0; i < count; i++, addr += sizeof (PTRACE_XFER_TYPE))
|
|
|
|
|
{
|
|
|
|
|
errno = 0;
|
2001-05-04 06:15:33 +02:00
|
|
|
|
ptrace (PT_WRITE_D, PIDGET (inferior_ptid),
|
2004-08-15 01:14:34 +02:00
|
|
|
|
(PTRACE_TYPE_ARG3) addr, buffer[i]);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (errno)
|
1999-07-07 22:19:36 +02:00
|
|
|
|
{
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Using the appropriate one (I or D) is necessary for
|
1999-07-07 22:19:36 +02:00
|
|
|
|
Gould NP1, at least. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
errno = 0;
|
2001-05-04 06:15:33 +02:00
|
|
|
|
ptrace (PT_WRITE_I, PIDGET (inferior_ptid),
|
2004-08-15 01:14:34 +02:00
|
|
|
|
(PTRACE_TYPE_ARG3) addr, buffer[i]);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
if (errno)
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2001-10-21 16:53:46 +02:00
|
|
|
|
/* Read all the longwords. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
for (i = 0; i < count; i++, addr += sizeof (PTRACE_XFER_TYPE))
|
|
|
|
|
{
|
|
|
|
|
errno = 0;
|
2001-05-04 06:15:33 +02:00
|
|
|
|
buffer[i] = ptrace (PT_READ_I, PIDGET (inferior_ptid),
|
2004-08-15 01:14:34 +02:00
|
|
|
|
(PTRACE_TYPE_ARG3) addr, 0);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (errno)
|
|
|
|
|
return 0;
|
|
|
|
|
QUIT;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Copy appropriate bytes out of the buffer. */
|
|
|
|
|
memcpy (myaddr,
|
|
|
|
|
(char *) buffer + (memaddr & (sizeof (PTRACE_XFER_TYPE) - 1)),
|
|
|
|
|
len);
|
|
|
|
|
}
|
2001-10-21 16:53:46 +02:00
|
|
|
|
|
2002-01-08 01:59:31 +01:00
|
|
|
|
if (old_chain != NULL)
|
|
|
|
|
do_cleanups (old_chain);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
return len;
|
|
|
|
|
}
|
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
udot_info (char *dummy1, int dummy2)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
#if defined (KERNEL_U_SIZE)
|
2003-02-25 00:58:32 +01:00
|
|
|
|
long udot_off; /* Offset into user struct */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
int udot_val; /* Value from user struct at udot_off */
|
|
|
|
|
char mess[128]; /* For messages */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#endif
|
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (!target_has_execution)
|
|
|
|
|
{
|
|
|
|
|
error ("The program is not being run.");
|
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
#if !defined (KERNEL_U_SIZE)
|
|
|
|
|
|
|
|
|
|
/* Adding support for this command is easy. Typically you just add a
|
|
|
|
|
routine, called "kernel_u_size" that returns the size of the user
|
|
|
|
|
struct, to the appropriate *-nat.c file and then add to the native
|
|
|
|
|
config file "#define KERNEL_U_SIZE kernel_u_size()" */
|
|
|
|
|
error ("Don't know how large ``struct user'' is in this version of gdb.");
|
|
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
|
|
for (udot_off = 0; udot_off < KERNEL_U_SIZE; udot_off += sizeof (udot_val))
|
|
|
|
|
{
|
|
|
|
|
if ((udot_off % 24) == 0)
|
|
|
|
|
{
|
|
|
|
|
if (udot_off > 0)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered ("\n");
|
|
|
|
|
}
|
2003-02-25 00:58:32 +01:00
|
|
|
|
printf_filtered ("%s:", paddr (udot_off));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
2004-08-15 01:14:34 +02:00
|
|
|
|
udot_val = ptrace (PT_READ_U, PIDGET (inferior_ptid), (PTRACE_TYPE_ARG3) udot_off, 0);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (errno != 0)
|
|
|
|
|
{
|
2003-02-25 00:58:32 +01:00
|
|
|
|
sprintf (mess, "\nreading user struct at offset 0x%s",
|
|
|
|
|
paddr_nz (udot_off));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
perror_with_name (mess);
|
|
|
|
|
}
|
|
|
|
|
/* Avoid using nonportable (?) "*" in print specs */
|
|
|
|
|
printf_filtered (sizeof (int) == 4 ? " 0x%08x" : " 0x%16x", udot_val);
|
|
|
|
|
}
|
|
|
|
|
printf_filtered ("\n");
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
#endif /* !defined (CHILD_XFER_MEMORY). */
|
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
_initialize_infptrace (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
#if !defined (CHILD_XFER_MEMORY)
|
|
|
|
|
add_info ("udot", udot_info,
|
|
|
|
|
"Print contents of kernel ``struct user'' for current child.");
|
|
|
|
|
#endif
|
|
|
|
|
}
|