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openocd/src/openocd.c

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/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2007-2010 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 "openocd.h"
#include <jtag/driver.h>
#include <jtag/jtag.h>
#include <transport/transport.h>
#include <helper/ioutil.h>
#include <helper/util.h>
#include <helper/configuration.h>
#include <flash/nor/core.h>
#include <flash/nand/core.h>
#include <pld/pld.h>
#include <flash/mflash.h>
#include <server/server.h>
#include <server/gdb_server.h>
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#define OPENOCD_VERSION \
"Open On-Chip Debugger " VERSION RELSTR " (" PKGBLDDATE ")"
/* Give scripts and TELNET a way to find out what version this is */
static int jim_version_command(Jim_Interp *interp, int argc,
Jim_Obj * const *argv)
{
if (argc > 2)
return JIM_ERR;
const char *str = "";
char *version_str;
version_str = OPENOCD_VERSION;
if (argc == 2)
str = Jim_GetString(argv[1], NULL);
if (strcmp("git", str) == 0)
version_str = GITVERSION;
Jim_SetResult(interp, Jim_NewStringObj(interp, version_str, -1));
return JIM_OK;
}
static int log_target_callback_event_handler(struct target *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;
}
static bool init_at_startup = true;
COMMAND_HANDLER(handle_noinit_command)
{
if (CMD_ARGC != 0)
return ERROR_COMMAND_SYNTAX_ERROR;
init_at_startup = false;
return ERROR_OK;
}
/* OpenOCD can't really handle failure of this command. Patches welcome! :-) */
COMMAND_HANDLER(handle_init_command)
{
if (CMD_ARGC != 0)
return ERROR_COMMAND_SYNTAX_ERROR;
int retval;
static int initialized;
if (initialized)
return ERROR_OK;
initialized = 1;
retval = command_run_line(CMD_CTX, "target init");
if (ERROR_OK != retval)
return ERROR_FAIL;
retval = adapter_init(CMD_CTX);
if (retval != ERROR_OK) {
/* we must be able to set up the debug adapter */
return retval;
}
LOG_DEBUG("Debug Adapter init complete");
/* "transport init" verifies the expected devices are present;
* for JTAG, it checks the list of configured TAPs against
* what's discoverable, possibly with help from the platform's
* JTAG event handlers. (which require COMMAND_EXEC)
*/
command_context_mode(CMD_CTX, COMMAND_EXEC);
retval = command_run_line(CMD_CTX, "transport init");
if (ERROR_OK != retval)
return ERROR_FAIL;
LOG_DEBUG("Examining targets...");
if (target_examine() != ERROR_OK)
LOG_DEBUG("target examination failed");
command_context_mode(CMD_CTX, COMMAND_CONFIG);
if (command_run_line(CMD_CTX, "flash init") != ERROR_OK)
return ERROR_FAIL;
if (command_run_line(CMD_CTX, "mflash init") != ERROR_OK)
return ERROR_FAIL;
if (command_run_line(CMD_CTX, "nand init") != ERROR_OK)
return ERROR_FAIL;
if (command_run_line(CMD_CTX, "pld init") != ERROR_OK)
return ERROR_FAIL;
command_context_mode(CMD_CTX, COMMAND_EXEC);
/* initialize telnet subsystem */
gdb_target_add_all(all_targets);
target_register_event_callback(log_target_callback_event_handler, CMD_CTX);
return ERROR_OK;
}
COMMAND_HANDLER(handle_add_script_search_dir_command)
{
if (CMD_ARGC != 1)
return ERROR_COMMAND_SYNTAX_ERROR;
add_script_search_dir(CMD_ARGV[0]);
return ERROR_OK;
}
static const struct command_registration openocd_command_handlers[] = {
{
.name = "version",
.jim_handler = jim_version_command,
.mode = COMMAND_ANY,
.help = "show program version",
},
{
.name = "noinit",
.handler = &handle_noinit_command,
.mode = COMMAND_CONFIG,
.help = "Prevent 'init' from being called at startup.",
.usage = ""
},
{
.name = "init",
.handler = &handle_init_command,
.mode = COMMAND_ANY,
.help = "Initializes configured targets and servers. "
"Changes command mode from CONFIG to EXEC. "
"Unless 'noinit' is called, this command is "
"called automatically at the end of startup.",
.usage = ""
},
{
.name = "add_script_search_dir",
.handler = &handle_add_script_search_dir_command,
.mode = COMMAND_ANY,
.help = "dir to search for config files and scripts",
.usage = "<directory>"
},
COMMAND_REGISTRATION_DONE
};
static int openocd_register_commands(struct command_context *cmd_ctx)
{
return register_commands(cmd_ctx, NULL, openocd_command_handlers);
}
struct command_context *global_cmd_ctx;
/* NB! this fn can be invoked outside this file for non PC hosted builds
* NB! do not change to 'static'!!!!
*/
struct command_context *setup_command_handler(Jim_Interp *interp)
{
log_init();
LOG_DEBUG("log_init: complete");
const char *startup = openocd_startup_tcl;
struct command_context *cmd_ctx = command_init(startup, interp);
/* register subsystem commands */
typedef int (*command_registrant_t)(struct command_context *cmd_ctx_value);
static const command_registrant_t command_registrants[] = {
&openocd_register_commands,
&server_register_commands,
&gdb_register_commands,
&log_register_commands,
&transport_register_commands,
&interface_register_commands,
&target_register_commands,
&flash_register_commands,
&nand_register_commands,
&pld_register_commands,
&mflash_register_commands,
NULL
};
for (unsigned i = 0; NULL != command_registrants[i]; i++) {
int retval = (*command_registrants[i])(cmd_ctx);
if (ERROR_OK != retval) {
command_done(cmd_ctx);
return NULL;
}
}
LOG_DEBUG("command registration: complete");
LOG_OUTPUT(OPENOCD_VERSION "\n"
"Licensed under GNU GPL v2\n");
global_cmd_ctx = cmd_ctx;
return cmd_ctx;
}
/** OpenOCD runtime meat that can become single-thread in future. It parse
* commandline, reads configuration, sets up the target and starts server loop.
* Commandline arguments are passed into this function from openocd_main().
*/
static int openocd_thread(int argc, char *argv[], struct command_context *cmd_ctx)
{
int ret;
if (parse_cmdline_args(cmd_ctx, argc, argv) != ERROR_OK)
return EXIT_FAILURE;
if (server_preinit() != ERROR_OK)
return EXIT_FAILURE;
ret = parse_config_file(cmd_ctx);
if (ret != ERROR_OK)
return EXIT_FAILURE;
ret = server_init(cmd_ctx);
if (ERROR_OK != ret)
return EXIT_FAILURE;
if (init_at_startup) {
ret = command_run_line(cmd_ctx, "init");
if (ERROR_OK != ret)
return EXIT_FAILURE;
}
server_loop(cmd_ctx);
server_quit();
return ret;
}
/* 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 */
struct command_context *cmd_ctx;
cmd_ctx = setup_command_handler(NULL);
if (util_init(cmd_ctx) != ERROR_OK)
return EXIT_FAILURE;
if (ioutil_init(cmd_ctx) != ERROR_OK)
return EXIT_FAILURE;
LOG_OUTPUT("For bug reports, read\n\t"
"http://openocd.sourceforge.net/doc/doxygen/bugs.html"
"\n");
command_context_mode(cmd_ctx, COMMAND_CONFIG);
command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
/* Start the executable meat that can evolve into thread in future. */
ret = openocd_thread(argc, argv, cmd_ctx);
unregister_all_commands(cmd_ctx, NULL);
/* free commandline interface */
command_done(cmd_ctx);
adapter_quit();
return ret;
}
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