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openocd/src/openocd.c

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/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2007,2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2008 Richard Missenden *
* richard.missenden@googlemail.com *
* *
* 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., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "jtag.h"
#include "configuration.h"
#include "xsvf.h"
#include "svf.h"
#include "target.h"
#include "flash.h"
#include "nand.h"
#include "pld.h"
#include "mflash.h"
#include "server.h"
#include "telnet_server.h"
#include "gdb_server.h"
#include "tcl_server.h"
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#define OPENOCD_VERSION \
"Open On-Chip Debugger " VERSION RELSTR " (" PKGBLDDATE ")"
static void print_version(void)
{
/* DANGER!!! make sure that the line below does not appear in a patch, do not remove */
/* DANGER!!! make sure that the line below does not appear in a patch, do not remove */
/* DANGER!!! make sure that the line below does not appear in a patch, do not remove */
/* DANGER!!! make sure that the line below does not appear in a patch, do not remove */
/* DANGER!!! make sure that the line below does not appear in a patch, do not remove */
LOG_OUTPUT("$URL$\n");
/* DANGER!!! make sure that the line above does not appear in a patch, do not remove */
/* DANGER!!! make sure that the line above does not appear in a patch, do not remove */
/* DANGER!!! make sure that the line above does not appear in a patch, do not remove */
/* DANGER!!! make sure that the line above does not appear in a patch, do not remove */
/* DANGER!!! make sure that the line above does not appear in a patch, do not remove */
}
/* Give TELNET a way to find out what version this is */
static int handle_version_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc != 0)
return ERROR_COMMAND_SYNTAX_ERROR;
command_print(cmd_ctx, OPENOCD_VERSION);
return ERROR_OK;
}
static void exit_handler(void)
{
jtag_interface_quit();
}
static int log_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv)
{
switch (event)
{
case TARGET_EVENT_GDB_START:
target->display = 0;
break;
case TARGET_EVENT_GDB_END:
target->display = 1;
break;
case TARGET_EVENT_HALTED:
if (target->display)
{
/* do not display information when debugger caused the halt */
target_arch_state(target);
}
break;
default:
break;
}
return ERROR_OK;
}
int ioutil_init(struct command_context_s *cmd_ctx);
/* OpenOCD can't really handle failure of this command. Patches welcome! :-) */
static int handle_init_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc != 0)
return ERROR_COMMAND_SYNTAX_ERROR;
int retval;
static int initialized = 0;
if (initialized)
return ERROR_OK;
initialized = 1;
atexit(exit_handler);
if (target_init(cmd_ctx) != ERROR_OK)
return ERROR_FAIL;
LOG_DEBUG("target init complete");
if ((retval = jtag_interface_init(cmd_ctx)) != ERROR_OK)
{
/* we must be able to set up the jtag interface */
return retval;
}
LOG_DEBUG("jtag interface init complete");
/* Try to initialize & examine the JTAG chain at this point, but
* continue startup regardless */
if (jtag_init(cmd_ctx) == ERROR_OK)
{
LOG_DEBUG("jtag init complete");
if (target_examine() == ERROR_OK)
{
LOG_DEBUG("jtag examine complete");
}
}
if (flash_init_drivers(cmd_ctx) != ERROR_OK)
return ERROR_FAIL;
LOG_DEBUG("flash init complete");
if (mflash_init_drivers(cmd_ctx) != ERROR_OK)
return ERROR_FAIL;
LOG_DEBUG("mflash init complete");
if (nand_init(cmd_ctx) != ERROR_OK)
return ERROR_FAIL;
LOG_DEBUG("NAND init complete");
if (pld_init(cmd_ctx) != ERROR_OK)
return ERROR_FAIL;
LOG_DEBUG("pld init complete");
/* initialize tcp server */
server_init();
/* initialize telnet subsystem */
telnet_init("Open On-Chip Debugger");
gdb_init();
tcl_init(); /* allows tcl to just connect without going thru telnet */
target_register_event_callback(log_target_callback_event_handler, cmd_ctx);
return ERROR_OK;
}
command_context_t *global_cmd_ctx;
/* NB! this fn can be invoked outside this file for non PC hosted builds */
command_context_t *setup_command_handler(void)
{
command_context_t *cmd_ctx;
global_cmd_ctx = cmd_ctx = command_init();
register_command(cmd_ctx, NULL, "version", handle_version_command,
COMMAND_EXEC, "show OpenOCD version");
/* register subsystem commands */
server_register_commands(cmd_ctx);
telnet_register_commands(cmd_ctx);
gdb_register_commands(cmd_ctx);
tcl_register_commands(cmd_ctx); /* tcl server commands */
log_register_commands(cmd_ctx);
jtag_register_commands(cmd_ctx);
xsvf_register_commands(cmd_ctx);
svf_register_commands(cmd_ctx);
target_register_commands(cmd_ctx);
flash_register_commands(cmd_ctx);
nand_register_commands(cmd_ctx);
pld_register_commands(cmd_ctx);
mflash_register_commands(cmd_ctx);
if (log_init(cmd_ctx) != ERROR_OK)
{
exit(-1);
}
LOG_DEBUG("log init complete");
LOG_OUTPUT(OPENOCD_VERSION "\n");
register_command(cmd_ctx, NULL, "init", handle_init_command,
COMMAND_ANY, "initializes target and servers - nop on subsequent invocations");
return cmd_ctx;
}
int httpd_start(void);
void httpd_stop(void);
#if !BUILD_HTTPD && !BUILD_ECOSBOARD
/* implementations of OpenOCD that uses multithreading needs to know when
* OpenOCD is sleeping. No-op in vanilla OpenOCD
*/
void openocd_sleep_prelude(void)
{
}
void openocd_sleep_postlude(void)
{
}
#endif
/* normally this is the main() function entry, but if OpenOCD is linked
* into application, then this fn will not be invoked, but rather that
* application will have it's own implementation of main(). */
int openocd_main(int argc, char *argv[])
{
int ret;
/* initialize commandline interface */
command_context_t *cmd_ctx;
cmd_ctx = setup_command_handler();
#if BUILD_IOUTIL
if (ioutil_init(cmd_ctx) != ERROR_OK)
{
return EXIT_FAILURE;
}
#endif
print_version();
LOG_OUTPUT("For bug reports, read http://svn.berlios.de/svnroot/repos/openocd/trunk/BUGS\n");
command_context_mode(cmd_ctx, COMMAND_CONFIG);
command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
if (parse_cmdline_args(cmd_ctx, argc, argv) != ERROR_OK)
return EXIT_FAILURE;
ret = parse_config_file(cmd_ctx);
if ((ret != ERROR_OK) && (ret != ERROR_COMMAND_CLOSE_CONNECTION))
return EXIT_FAILURE;
#if BUILD_HTTPD
if (httpd_start() != ERROR_OK)
return EXIT_FAILURE;
#endif
if (ret != ERROR_COMMAND_CLOSE_CONNECTION)
{
command_context_mode(cmd_ctx, COMMAND_EXEC);
if (command_run_line(cmd_ctx, "init") != ERROR_OK)
return EXIT_FAILURE;
/* handle network connections */
server_loop(cmd_ctx);
}
/* shut server down */
server_quit();
#if BUILD_HTTPD
httpd_stop();
#endif
unregister_all_commands(cmd_ctx);
/* free commandline interface */
command_done(cmd_ctx);
return EXIT_SUCCESS;
}
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