157 lines
4.1 KiB
C
157 lines
4.1 KiB
C
/* Target operations for the remote server for GDB.
|
|
Copyright (C) 2002, 2004, 2005, 2007, 2008, 2009
|
|
Free Software Foundation, Inc.
|
|
|
|
Contributed by MontaVista Software.
|
|
|
|
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 3 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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "server.h"
|
|
|
|
struct target_ops *the_target;
|
|
|
|
void
|
|
set_desired_inferior (int use_general)
|
|
{
|
|
struct thread_info *found;
|
|
|
|
if (use_general == 1)
|
|
found = find_thread_ptid (general_thread);
|
|
else
|
|
{
|
|
found = NULL;
|
|
|
|
/* If we are continuing any (all) thread(s), use step_thread
|
|
to decide which thread to step and/or send the specified
|
|
signal to. */
|
|
if ((!ptid_equal (step_thread, null_ptid)
|
|
&& !ptid_equal (step_thread, minus_one_ptid))
|
|
&& (ptid_equal (cont_thread, null_ptid)
|
|
|| ptid_equal (cont_thread, minus_one_ptid)))
|
|
found = find_thread_ptid (step_thread);
|
|
|
|
if (found == NULL)
|
|
found = find_thread_ptid (cont_thread);
|
|
}
|
|
|
|
if (found == NULL)
|
|
current_inferior = (struct thread_info *) all_threads.head;
|
|
else
|
|
current_inferior = found;
|
|
}
|
|
|
|
int
|
|
read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
|
|
{
|
|
int res;
|
|
res = (*the_target->read_memory) (memaddr, myaddr, len);
|
|
check_mem_read (memaddr, myaddr, len);
|
|
return res;
|
|
}
|
|
|
|
int
|
|
write_inferior_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
|
|
int len)
|
|
{
|
|
/* Lacking cleanups, there is some potential for a memory leak if the
|
|
write fails and we go through error(). Make sure that no more than
|
|
one buffer is ever pending by making BUFFER static. */
|
|
static unsigned char *buffer = 0;
|
|
int res;
|
|
|
|
if (buffer != NULL)
|
|
free (buffer);
|
|
|
|
buffer = xmalloc (len);
|
|
memcpy (buffer, myaddr, len);
|
|
check_mem_write (memaddr, buffer, len);
|
|
res = (*the_target->write_memory) (memaddr, buffer, len);
|
|
free (buffer);
|
|
buffer = NULL;
|
|
|
|
return res;
|
|
}
|
|
|
|
ptid_t
|
|
mywait (ptid_t ptid, struct target_waitstatus *ourstatus, int options,
|
|
int connected_wait)
|
|
{
|
|
ptid_t ret;
|
|
|
|
if (connected_wait)
|
|
server_waiting = 1;
|
|
|
|
ret = (*the_target->wait) (ptid, ourstatus, options);
|
|
|
|
if (ourstatus->kind == TARGET_WAITKIND_EXITED)
|
|
fprintf (stderr,
|
|
"\nChild exited with status %d\n", ourstatus->value.sig);
|
|
else if (ourstatus->kind == TARGET_WAITKIND_SIGNALLED)
|
|
fprintf (stderr, "\nChild terminated with signal = 0x%x (%s)\n",
|
|
target_signal_to_host (ourstatus->value.sig),
|
|
target_signal_to_name (ourstatus->value.sig));
|
|
|
|
if (connected_wait)
|
|
server_waiting = 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
start_non_stop (int nonstop)
|
|
{
|
|
if (the_target->start_non_stop == NULL)
|
|
{
|
|
if (nonstop)
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
return (*the_target->start_non_stop) (nonstop);
|
|
}
|
|
|
|
void
|
|
set_target_ops (struct target_ops *target)
|
|
{
|
|
the_target = (struct target_ops *) xmalloc (sizeof (*the_target));
|
|
memcpy (the_target, target, sizeof (*the_target));
|
|
}
|
|
|
|
/* Convert pid to printable format. */
|
|
|
|
const char *
|
|
target_pid_to_str (ptid_t ptid)
|
|
{
|
|
static char buf[80];
|
|
|
|
if (ptid_equal (ptid, minus_one_ptid))
|
|
snprintf (buf, sizeof (buf), "<all threads>");
|
|
else if (ptid_equal (ptid, null_ptid))
|
|
snprintf (buf, sizeof (buf), "<null thread>");
|
|
else if (ptid_get_tid (ptid) != 0)
|
|
snprintf (buf, sizeof (buf), "Thread %d.0x%lx",
|
|
ptid_get_pid (ptid), ptid_get_tid (ptid));
|
|
else if (ptid_get_lwp (ptid) != 0)
|
|
snprintf (buf, sizeof (buf), "LWP %d.%ld",
|
|
ptid_get_pid (ptid), ptid_get_lwp (ptid));
|
|
else
|
|
snprintf (buf, sizeof (buf), "Process %d",
|
|
ptid_get_pid (ptid));
|
|
|
|
return buf;
|
|
}
|