/* Target operations for the remote server for GDB.
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/* Target operations for the remote server for GDB.
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Copyright (C) 2002, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
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Copyright (C) 2002, 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
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Contributed by MontaVista Software.
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Contributed by MontaVista Software.
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "server.h"
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#include "server.h"
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struct target_ops *the_target;
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struct target_ops *the_target;
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void
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void
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set_desired_inferior (int use_general)
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set_desired_inferior (int use_general)
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{
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{
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struct thread_info *found;
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struct thread_info *found;
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if (use_general == 1)
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if (use_general == 1)
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{
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{
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found = (struct thread_info *) find_inferior_id (&all_threads,
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found = (struct thread_info *) find_inferior_id (&all_threads,
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general_thread);
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general_thread);
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}
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}
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else
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else
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{
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{
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found = NULL;
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found = NULL;
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/* If we are continuing any (all) thread(s), use step_thread
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/* If we are continuing any (all) thread(s), use step_thread
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to decide which thread to step and/or send the specified
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to decide which thread to step and/or send the specified
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signal to. */
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signal to. */
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if ((step_thread != 0 && step_thread != -1)
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if ((step_thread != 0 && step_thread != -1)
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&& (cont_thread == 0 || cont_thread == -1))
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&& (cont_thread == 0 || cont_thread == -1))
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found = (struct thread_info *) find_inferior_id (&all_threads,
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found = (struct thread_info *) find_inferior_id (&all_threads,
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step_thread);
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step_thread);
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if (found == NULL)
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if (found == NULL)
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found = (struct thread_info *) find_inferior_id (&all_threads,
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found = (struct thread_info *) find_inferior_id (&all_threads,
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cont_thread);
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cont_thread);
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}
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}
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if (found == NULL)
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if (found == NULL)
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current_inferior = (struct thread_info *) all_threads.head;
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current_inferior = (struct thread_info *) all_threads.head;
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else
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else
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current_inferior = found;
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current_inferior = found;
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}
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}
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int
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int
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read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
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read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
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{
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{
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int res;
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int res;
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res = (*the_target->read_memory) (memaddr, myaddr, len);
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res = (*the_target->read_memory) (memaddr, myaddr, len);
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check_mem_read (memaddr, myaddr, len);
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check_mem_read (memaddr, myaddr, len);
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return res;
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return res;
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}
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}
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int
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int
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write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
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write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
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int len)
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int len)
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{
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{
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/* Lacking cleanups, there is some potential for a memory leak if the
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/* Lacking cleanups, there is some potential for a memory leak if the
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write fails and we go through error(). Make sure that no more than
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write fails and we go through error(). Make sure that no more than
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one buffer is ever pending by making BUFFER static. */
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one buffer is ever pending by making BUFFER static. */
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static unsigned char *buffer = 0;
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static unsigned char *buffer = 0;
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int res;
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int res;
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if (buffer != NULL)
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if (buffer != NULL)
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free (buffer);
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free (buffer);
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buffer = malloc (len);
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buffer = malloc (len);
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memcpy (buffer, myaddr, len);
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memcpy (buffer, myaddr, len);
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check_mem_write (memaddr, buffer, len);
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check_mem_write (memaddr, buffer, len);
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res = (*the_target->write_memory) (memaddr, buffer, len);
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res = (*the_target->write_memory) (memaddr, buffer, len);
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free (buffer);
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free (buffer);
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buffer = NULL;
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buffer = NULL;
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return res;
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return res;
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}
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}
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unsigned char
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unsigned char
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mywait (char *statusp, int connected_wait)
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mywait (char *statusp, int connected_wait)
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{
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{
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unsigned char ret;
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unsigned char ret;
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if (connected_wait)
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if (connected_wait)
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server_waiting = 1;
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server_waiting = 1;
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ret = (*the_target->wait) (statusp);
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ret = (*the_target->wait) (statusp);
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if (connected_wait)
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if (connected_wait)
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server_waiting = 0;
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server_waiting = 0;
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return ret;
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return ret;
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}
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}
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void
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void
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set_target_ops (struct target_ops *target)
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set_target_ops (struct target_ops *target)
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{
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{
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the_target = (struct target_ops *) malloc (sizeof (*the_target));
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the_target = (struct target_ops *) malloc (sizeof (*the_target));
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memcpy (the_target, target, sizeof (*the_target));
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memcpy (the_target, target, sizeof (*the_target));
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}
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}
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