psoc4 flash driver: cleaned printf PRI... formats
[openocd.git] / src / openocd.c
index b4a9704c1de5805825c27ac0084f252db7167393..758febb4df7533ddcede040ab007ca7a22af92e5 100644 (file)
@@ -2,6 +2,12 @@
  *   Copyright (C) 2005 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
+ *   Copyright (C) 2007-2010 Ã˜yvind 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     *
  *   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.             *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  ***************************************************************************/
 
-#define OPENOCD_VERSION "Open On-Chip Debugger " VERSION " (" PKGBLDDATE ") svn:" PKGBLDREV
-
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
-#include "log.h"
-#include "types.h"
-#include "jtag.h"
-#include "configuration.h"
-#include "interpreter.h"
-#include "xsvf.h"
-#include "target.h"
-#include "flash.h"
-#include "nand.h"
-#include "pld.h"
-
-#include "command.h"
-#include "server.h"
-#include "telnet_server.h"
-#include "gdb_server.h"
-#include "tcl_server.h"
-
-#include <sys/time.h>
-#include <sys/types.h>
+#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>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-
-#ifdef __ECOS
-/* Jim is provied by eCos */
-#include <cyg/jimtcl/jim.h>
-#else
-#define JIM_EMBEDDED
-#include "jim.h"
 #endif
 
+#define OPENOCD_VERSION        \
+       "Open On-Chip Debugger " VERSION RELSTR " (" PKGBLDDATE ")"
 
+static const char openocd_startup_tcl[] = {
+#include "startup_tcl.inc"
+0 /* Terminate with zero */
+};
 
-
-int launchTarget(struct command_context_s *cmd_ctx)
+/* 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)
 {
-       int retval;
-       /* Try to examine & validate jtag chain, though this may require a reset first
-        * in which case we continue setup */
-       jtag_init(cmd_ctx);
+       if (argc > 2)
+               return JIM_ERR;
+       const char *str = "";
+       char *version_str;
+       version_str = OPENOCD_VERSION;
 
-       /* try to examine target at this point. If it fails, perhaps a reset will
-        * bring it up later on via a telnet/gdb session */
-       target_examine(cmd_ctx);
+       if (argc == 2)
+               str = Jim_GetString(argv[1], NULL);
 
-       retval=flash_init_drivers(cmd_ctx);
-       if (retval!=ERROR_OK)
-               return retval;
-       LOG_DEBUG("flash init complete");
+       if (strcmp("git", str) == 0)
+               version_str = GITVERSION;
 
-       retval=nand_init(cmd_ctx);
-       if (retval!=ERROR_OK)
-               return retval;
-       LOG_DEBUG("NAND init complete");
+       Jim_SetResult(interp, Jim_NewStringObj(interp, version_str, -1));
 
-       retval=pld_init(cmd_ctx);
-       if (retval!=ERROR_OK)
-               return retval;
-       LOG_DEBUG("pld init complete");
-       return retval;
+       return JIM_OK;
 }
 
-/* Give TELNET a way to find out what version this is */
-int handle_version_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int log_target_callback_event_handler(struct target *target,
+       enum target_event event,
+       void *priv)
 {
-       command_print(cmd_ctx, OPENOCD_VERSION);
+       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 int daemon_startup = 0;
+static bool init_at_startup = true;
 
-int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_noinit_command)
 {
-       if (argc==0)
-               return ERROR_OK;
-       if (argc > 1 )
+       if (CMD_ARGC != 0)
                return ERROR_COMMAND_SYNTAX_ERROR;
-       
-       daemon_startup = strcmp("reset", args[0])==0;
-       
-       command_print(cmd_ctx, OPENOCD_VERSION);
-
+       init_at_startup = false;
        return ERROR_OK;
 }
 
-
-void exit_handler(void)
+/* OpenOCD can't really handle failure of this command. Patches welcome! :-) */
+COMMAND_HANDLER(handle_init_command)
 {
-       /* close JTAG interface */
-       if (jtag && jtag->quit)
-               jtag->quit();
-}
 
+       if (CMD_ARGC != 0)
+               return ERROR_COMMAND_SYNTAX_ERROR;
 
-/* OpenOCD can't really handle failure of this command. Patches welcome! :-) */
-int handle_init_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
        int retval;
-       static int initialized=0;
+       static int initialized;
        if (initialized)
                return ERROR_OK;
-       
-       initialized=1;
-       
-       command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
 
-       atexit(exit_handler);
+       initialized = 1;
 
-       
-       if (target_init(cmd_ctx) != ERROR_OK)
+       retval = command_run_line(CMD_CTX, "target init");
+       if (ERROR_OK != retval)
                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 */
+       retval = adapter_init(CMD_CTX);
+       if (retval != ERROR_OK) {
+               /* we must be able to set up the debug adapter */
                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(cmd_ctx) == ERROR_OK)
-               {
-                       LOG_DEBUG("jtag examine complete");
-               }
-       }
-
-       
-       if (flash_init_drivers(cmd_ctx) != ERROR_OK)
-               return ERROR_FAIL;
-       LOG_DEBUG("flash 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 */
 
-       return ERROR_OK;
-}
-
-
-void lockBigLock();
-void unlockBigLock();
-
-
-
-Jim_Interp *interp;
-command_context_t *active_cmd_ctx;
-
-static int
-new_int_array_element( Jim_Interp * interp, 
-                                          const char *varname, 
-                                          int idx, 
-                                          u32 val )
-{
-       char *namebuf;
-       Jim_Obj *nameObjPtr, *valObjPtr;
-       int result;
-
-       namebuf = alloc_printf("%s(%d)", varname, idx );
-
-
-    nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
-    valObjPtr = Jim_NewIntObj(interp, val );
-    Jim_IncrRefCount(nameObjPtr);
-    Jim_IncrRefCount(valObjPtr);
-    result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
-    Jim_DecrRefCount(interp, nameObjPtr);
-    Jim_DecrRefCount(interp, valObjPtr);
-    free(namebuf);
-       // printf( "%s = 0%08x\n", namebuf, val );
-    return result;
-}
+       LOG_DEBUG("Debug Adapter init complete");
 
-static int
-Jim_Command_mem2array( Jim_Interp *interp, int argc, Jim_Obj *const *argv)
-{
-       target_t *target;
-       long l;
-       u32 width;
-       u32 len;
-       u32 addr;
-       u32 count;
-       u32 v;
-       const char *varname;
-       u8 buffer[4096];
-       int  i,n,e,retval;
-
-
-       /* argv[1] = name of array to receive the data
-        * argv[2] = desired width
-        * argv[3] = memory address 
-        * argv[4] = length in bytes to read
+       /* "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)
         */
-       if( argc != 5 ){
-               Jim_WrongNumArgs( interp, 1, argv, "varname width addr nelems" );
-               return JIM_ERR;
-       }
-       varname = Jim_GetString( argv[1], &len );
-       /* given "foo" get space for worse case "foo(%d)" .. add 20 */
-
-
-       e = Jim_GetLong( interp, argv[2], &l );
-       width = l;
-       if( e != JIM_OK ){
-               return e;
-       }
-       
-       e = Jim_GetLong( interp, argv[3], &l );
-       addr = l;
-       if( e != JIM_OK ){
-               return e;
-       }
-       e = Jim_GetLong( interp, argv[4], &l );
-       len = l;
-       if( e != JIM_OK ){
-               return e;
-       }
-       switch(width){
-       case 8:
-               width = 1;
-               break;
-       case 16:
-               width = 2;
-               break;
-       case 32:
-               width = 4;
-               break;
-       default:
-               Jim_SetResult(interp, 
-                                         Jim_NewEmptyStringObj(interp));
-               Jim_AppendStrings( interp, Jim_GetResult(interp),
-                                                  "Invalid width param, must be 8/16/32", NULL );
-               return JIM_ERR;
-       }
-       if( len == 0 ){
-               Jim_SetResult(interp, 
-                                         Jim_NewEmptyStringObj(interp));
-               Jim_AppendStrings( interp, Jim_GetResult(interp),
-                                                  "mem2array: zero width read?", NULL );
-               return JIM_ERR;
-       }
-       if( (addr + (len * width)) < addr ){
-               Jim_SetResult(interp, 
-                                         Jim_NewEmptyStringObj(interp));
-               Jim_AppendStrings( interp, Jim_GetResult(interp),
-                                                  "mem2array: addr + len - wraps to zero?", NULL );
-               return JIM_ERR;
-       }
-       /* absurd transfer size? */
-       if( len > 65536 ){
-               Jim_SetResult(interp, 
-                                         Jim_NewEmptyStringObj(interp));
-               Jim_AppendStrings( interp, Jim_GetResult(interp),
-                                                  "mem2array: absurd > 64K item request", NULL );
-               return JIM_ERR;
-       }               
-               
-       if( (width == 1) ||
-               ((width == 2) && ((addr & 1) == 0)) ||
-               ((width == 4) && ((addr & 3) == 0)) ){
-               /* all is well */
-       } else {
-               char buf[100];
-               Jim_SetResult(interp, 
-                                         Jim_NewEmptyStringObj(interp));
-               sprintf( buf, 
-                                "mem2array address: 0x%08x is not aligned for %d byte reads",
-                                addr, width );
-                                
-               Jim_AppendStrings( interp, Jim_GetResult(interp),
-                                                  buf , NULL );
-               return JIM_ERR;
-       }
+       command_context_mode(CMD_CTX, COMMAND_EXEC);
 
-       target = get_current_target( active_cmd_ctx );
-       
-       /* Transfer loop */
-
-       /* index counter */
-       n = 0;
-       /* assume ok */
-       e = JIM_OK;
-       while( len ){
-
-               /* Slurp... in buffer size chunks */
-               
-               count = len; /* in objects.. */
-               if( count > (sizeof(buffer)/width)){
-                       count = (sizeof(buffer)/width);
-               }
-               
-               retval = target->type->read_memory( target, 
-                                                                                       addr, 
-                                                                                       width, 
-                                                                                       count,
-                                                                                       buffer );
-
-               if( retval != ERROR_OK ){
-                       /* BOO !*/
-                       LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
-                                         addr, width, count );
-                       Jim_SetResult(interp, 
-                                                 Jim_NewEmptyStringObj(interp));
-                       Jim_AppendStrings( interp, Jim_GetResult(interp),
-                                                  "mem2array: cannot read memory", NULL );
-                       e = JIM_ERR;
-                       len = 0;
-               } else {
-                       v = 0; /* shut up gcc */
-                       for( i = 0 ; i < count ; i++, n++ ){
-                               switch(width){
-                               case 4:
-                                       v = target_buffer_get_u32( target, &buffer[i*width] );
-                                       break;
-                               case 2:
-                                       v = target_buffer_get_u16( target, &buffer[i*width] );
-                                       break;
-                               case 1:
-                                       v = buffer[i] & 0x0ff;
-                                       break;
-                               }
-                               new_int_array_element( interp, varname, n, v );
-                       }
-                       len -= count;
-               }
-       }
-       Jim_SetResult(interp, 
-                                 Jim_NewEmptyStringObj(interp));
+       retval = command_run_line(CMD_CTX, "transport init");
+       if (ERROR_OK != retval)
+               return ERROR_FAIL;
 
-       return JIM_OK;
-}
+       LOG_DEBUG("Examining targets...");
+       if (target_examine() != ERROR_OK)
+               LOG_DEBUG("target examination failed");
 
-static void tcl_output(void *privData, const char *file, int line, 
-               const char *function, const char *string)
-{              
-       Jim_Obj *tclOutput=(Jim_Obj *)privData;
+       command_context_mode(CMD_CTX, COMMAND_CONFIG);
 
-       Jim_AppendString(interp, tclOutput, string, strlen(string));
-}
+       if (command_run_line(CMD_CTX, "flash init") != ERROR_OK)
+               return ERROR_FAIL;
 
-/* try to execute as Jim command, otherwise fall back to standard command.
+       if (command_run_line(CMD_CTX, "mflash init") != ERROR_OK)
+               return ERROR_FAIL;
 
-       Note that even if the Jim command caused an error, then we succeeded
-       to execute it, hence this fn pretty much always returns ERROR_OK. 
+       if (command_run_line(CMD_CTX, "nand init") != ERROR_OK)
+               return ERROR_FAIL;
 
- */
-int jim_command(command_context_t *context, char *line)
-{
-       int retval=ERROR_OK;
-       /* FIX!!!! in reality there is only one cmd_ctx handler, but consider
-       what might happen here if there are multiple handlers w/reentrant callback
-       fn's... shudder!  */
-       active_cmd_ctx=context;
-       int retcode=Jim_Eval(interp, line);
-       
-       const char *result;
-       int reslen;
-    result = Jim_GetString(Jim_GetResult(interp), &reslen);
-    if (retcode == JIM_ERR) {
-           int len, i;
-       
-           LOG_USER_N("Runtime error, file \"%s\", line %d:" JIM_NL,
-                   interp->errorFileName, interp->errorLine);
-           LOG_USER_N("    %s" JIM_NL,
-                   Jim_GetString(interp->result, NULL));
-           Jim_ListLength(interp, interp->stackTrace, &len);
-           for (i = 0; i < len; i+= 3) {
-               Jim_Obj *objPtr;
-               const char *proc, *file, *line;
-       
-               Jim_ListIndex(interp, interp->stackTrace, i, &objPtr, JIM_NONE);
-               proc = Jim_GetString(objPtr, NULL);
-               Jim_ListIndex(interp, interp->stackTrace, i+1, &objPtr,
-                       JIM_NONE);
-               file = Jim_GetString(objPtr, NULL);
-               Jim_ListIndex(interp, interp->stackTrace, i+2, &objPtr,
-                       JIM_NONE);
-               line = Jim_GetString(objPtr, NULL);
-               LOG_USER_N("In procedure '%s' called at file \"%s\", line %s" JIM_NL,
-                       proc, file, line);
-           }
-    } else if (retcode == JIM_EXIT) {
-       // ignore.
-        //exit(Jim_GetExitCode(interp));
-    } else {
-        if (reslen) {
-               int i;
-               char buff[256+1];
-               for (i=0; i<reslen; i+=256)
-               {
-                       int chunk;
-                       chunk=reslen-i;
-                       if (chunk>256)
-                               chunk=256;
-                       strncpy(buff, result, chunk);
-                       buff[chunk]=0; 
-               LOG_USER_N("%s", buff);
-               }
-               LOG_USER_N("%s", "\n");
-        }
-    }
-       return retval;
-}
+       if (command_run_line(CMD_CTX, "pld init") != ERROR_OK)
+               return ERROR_FAIL;
+       command_context_mode(CMD_CTX, COMMAND_EXEC);
 
-int startLoop=0;
+       /* initialize telnet subsystem */
+       gdb_target_add_all(all_targets);
 
-static int
-Jim_Command_openocd_ignore(Jim_Interp *interp, 
-                                   int argc,
-                                   Jim_Obj *const *argv,
-                                   int ignore)
-{
-       int retval;
-    char *cmd = (char*)Jim_GetString(argv[1], NULL);
-
-       lockBigLock();
-       
-    Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
-    
-    if (startLoop)
-    {
-       // We don't know whether or not the telnet/gdb server is running...
-       target_call_timer_callbacks_now();
-    }
-       
-       log_add_callback(tcl_output, tclOutput);
-    retval=command_run_line_internal(active_cmd_ctx, cmd);
-    
-    if (startLoop)
-    {
-       target_call_timer_callbacks_now();
-    }
-       log_remove_callback(tcl_output, tclOutput);
-    
-       Jim_SetResult(interp, tclOutput);
-    unlockBigLock();
-        
-    return (ignore||(retval==ERROR_OK))?JIM_OK:JIM_ERR;
-}
+       target_register_event_callback(log_target_callback_event_handler, CMD_CTX);
 
-static int
-Jim_Command_openocd(Jim_Interp *interp, 
-                                   int argc,
-                                   Jim_Obj *const *argv)
-{
-       return Jim_Command_openocd_ignore(interp, argc, argv, 1); 
+       return ERROR_OK;
 }
 
-static int
-Jim_Command_openocd_throw(Jim_Interp *interp, 
-                                   int argc,
-                                   Jim_Obj *const *argv)
+COMMAND_HANDLER(handle_add_script_search_dir_command)
 {
-       return Jim_Command_openocd_ignore(interp, argc, argv, 0); 
-}
-  
-
+       if (CMD_ARGC != 1)
+               return ERROR_COMMAND_SYNTAX_ERROR;
 
+       add_script_search_dir(CMD_ARGV[0]);
 
-/* find full path to file */
-static int
-Jim_Command_find(Jim_Interp *interp, 
-                                   int argc,
-                                   Jim_Obj *const *argv)
-{
-       if (argc!=2)
-               return JIM_ERR;
-       char *file = (char*)Jim_GetString(argv[1], NULL);
-       char *full_path=find_file(file);
-       if (full_path==NULL)
-               return JIM_ERR;
-    Jim_Obj *result = Jim_NewStringObj(interp, full_path, strlen(full_path));
-    free(full_path);
-    
-       Jim_SetResult(interp, result);
-       return JIM_OK;
+       return ERROR_OK;
 }
 
-static int
-Jim_Command_echo(Jim_Interp *interp, 
-                                   int argc,
-                                   Jim_Obj *const *argv)
+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)
 {
-       if (argc!=2)
-               return JIM_ERR;
-       char *str = (char*)Jim_GetString(argv[1], NULL);
-       LOG_USER("%s", str);
-       return JIM_OK;
+       return register_commands(cmd_ctx, NULL, openocd_command_handlers);
 }
 
-void command_output_text( command_context_t *context, const char *data );
+struct command_context *global_cmd_ctx;
 
-static size_t
-openocd_jim_fwrite( const void *_ptr, size_t size, size_t n, void *cookie )
+/* 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)
 {
-       size_t nbytes;
-       const char *ptr;
+       log_init();
+       LOG_DEBUG("log_init: complete");
 
-       /* make it a char easier to read code */
-       ptr = _ptr;
+       struct command_context *cmd_ctx = command_init(openocd_startup_tcl, interp);
 
-       nbytes = size * n;
-       if( nbytes == 0 ){
-               return 0;
-       }
-
-       if( !active_cmd_ctx ){
-               /* FIXME: Where should this go? */              
-               return n;
-       }
-
-       
-       /* do we have to chunk it? */
-       if( ptr[ nbytes ] == 0 ){
-               /* no it is a C style string */
-               command_output_text( active_cmd_ctx, ptr );
-               return strlen(ptr);
-       }
-       /* GRR we must chunk - not null terminated */
-       while( nbytes ){
-               char chunk[128+1];
-               int x;
-
-               x = nbytes;
-               if( x > 128 ){
-                       x = 128;
+       /* 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;
                }
-               /* copy it */
-               memcpy( chunk, ptr, x );
-               /* terminate it */
-               chunk[n] = 0;
-               /* output it */
-               command_output_text( active_cmd_ctx, chunk );
-               ptr += x;
-               nbytes -= x;
        }
-       
-       return n;
-}
-
-static size_t
-openocd_jim_fread(void *ptr, size_t size, size_t n, void *cookie )
-{
-       /* TCL wants to read... tell him no */
-       return 0;
-}
+       LOG_DEBUG("command registration: complete");
 
+       LOG_OUTPUT(OPENOCD_VERSION "\n"
+               "Licensed under GNU GPL v2\n");
 
-static int
-openocd_jim_vfprintf( void *cookie, const char *fmt, va_list ap )
-{
-       char *cp;
-       int n;
-       
-       n = -1;
-       if( active_cmd_ctx ){
-               cp = alloc_vprintf( fmt, ap );
-               if( cp ){
-                       command_output_text( active_cmd_ctx, cp );
-                       n = strlen(cp);
-                       free(cp);
-               }
-       }
-       return n;
-}
+       global_cmd_ctx = cmd_ctx;
 
-static int
-openocd_jim_fflush( void *cookie )
-{
-       /* nothing to flush */
-       return 0;
+       return cmd_ctx;
 }
 
-static char  *
-openocd_jim_fgets( char *s, int size, void *cookie )
+/** 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)
 {
-       /* not supported */
-       errno = ENOTSUP;
-       return NULL;
-}
+       int ret;
 
+       if (parse_cmdline_args(cmd_ctx, argc, argv) != ERROR_OK)
+               return EXIT_FAILURE;
 
+       if (server_preinit() != ERROR_OK)
+               return EXIT_FAILURE;
 
-void initJim(void)
-{
-    Jim_CreateCommand(interp, "openocd", Jim_Command_openocd, NULL, NULL);
-    Jim_CreateCommand(interp, "openocd_throw", Jim_Command_openocd_throw, NULL, NULL);
-    Jim_CreateCommand(interp, "find", Jim_Command_find, NULL, NULL);
-    Jim_CreateCommand(interp, "echo", Jim_Command_echo, NULL, NULL);
-    Jim_CreateCommand(interp, "mem2array", Jim_Command_mem2array, NULL, NULL );
-
-       /* Set Jim's STDIO */
-       interp->cookie_stdin  = NULL;
-       interp->cookie_stdout = NULL;
-       interp->cookie_stderr = NULL;
-       interp->cb_fwrite     = openocd_jim_fwrite;
-       interp->cb_fread      = openocd_jim_fread ;
-       interp->cb_vfprintf   = openocd_jim_vfprintf;
-       interp->cb_fflush     = openocd_jim_fflush;
-       interp->cb_fgets      = openocd_jim_fgets;
-}
+       ret = parse_config_file(cmd_ctx);
+       if (ret != ERROR_OK)
+               return EXIT_FAILURE;
 
-/* after command line parsing */
-void initJim2(void)
-{
-       Jim_Eval(interp, "source [find tcl/commands.tcl]");
-}
+       ret = server_init(cmd_ctx);
+       if (ERROR_OK != ret)
+               return EXIT_FAILURE;
 
-command_context_t *setup_command_handler()
-{
-       command_context_t *cmd_ctx;
-       
-       cmd_ctx = command_init();
-
-       register_command(cmd_ctx, NULL, "version", handle_version_command,
-                                        COMMAND_EXEC, "show OpenOCD version");
-       register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, 
-                       "deprecated - use \"init\" and \"reset\" at end of startup script instead");
-       
-       /* 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);
-       interpreter_register_commands(cmd_ctx);
-       xsvf_register_commands(cmd_ctx);
-       target_register_commands(cmd_ctx);
-       flash_register_commands(cmd_ctx);
-       nand_register_commands(cmd_ctx);
-       pld_register_commands(cmd_ctx);
-       
-       if (log_init(cmd_ctx) != ERROR_OK)
-       {
-               exit(-1);
+       if (init_at_startup) {
+               ret = command_run_line(cmd_ctx, "init");
+               if (ERROR_OK != ret)
+                       return EXIT_FAILURE;
        }
-       LOG_DEBUG("log init complete");
-
-       LOG_OUTPUT( OPENOCD_VERSION "\n" );
-       
-       
-       /* 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 */
-
-       register_command(cmd_ctx, NULL, "init", handle_init_command,
-                                        COMMAND_ANY, "initializes target and servers - nop on subsequent invocations");
 
-       return cmd_ctx;
+       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().
-*/
+/* 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[])
 {
-#ifdef JIM_EMBEDDED
-       Jim_InitEmbedded();
-    /* Create an interpreter */
-    interp = Jim_CreateInterp();
-    /* Add all the Jim core commands */
-    Jim_RegisterCoreCommands(interp);
-#endif
-    
-       initJim();
-       
+       int ret;
+
        /* initialize commandline interface */
-       command_context_t *cmd_ctx;
-       cmd_ctx=setup_command_handler();
-       
-       command_context_t *cfg_cmd_ctx;
-       cfg_cmd_ctx = copy_command_context(cmd_ctx);
-       cfg_cmd_ctx->mode = COMMAND_CONFIG;
-       command_set_output_handler(cfg_cmd_ctx, configuration_output_handler, NULL);
-       
-       if (parse_cmdline_args(cfg_cmd_ctx, argc, argv) != ERROR_OK)
-               return EXIT_FAILURE;
+       struct command_context *cmd_ctx;
 
-       initJim2();
+       cmd_ctx = setup_command_handler(NULL);
 
-       if (parse_config_file(cfg_cmd_ctx) != ERROR_OK)
+       if (util_init(cmd_ctx) != ERROR_OK)
                return EXIT_FAILURE;
-       
-       command_done(cfg_cmd_ctx);
 
-       if (command_run_line(cmd_ctx, "init")!=ERROR_OK)
+       if (ioutil_init(cmd_ctx) != ERROR_OK)
                return EXIT_FAILURE;
-       
-       if (daemon_startup)
-               command_run_line(cmd_ctx, "reset");
 
+       LOG_OUTPUT("For bug reports, read\n\t"
+               "http://openocd.sourceforge.net/doc/doxygen/bugs.html"
+               "\n");
 
-       startLoop=1;
+       command_context_mode(cmd_ctx, COMMAND_CONFIG);
+       command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
 
-       /* handle network connections */
-       server_loop(cmd_ctx);
+       /* Start the executable meat that can evolve into thread in future. */
+       ret = openocd_thread(argc, argv, cmd_ctx);
 
-       /* shut server down */
-       server_quit();
+       unregister_all_commands(cmd_ctx, NULL);
 
-       unregister_all_commands(cmd_ctx);
-       
        /* free commandline interface */
        command_done(cmd_ctx);
 
-       return EXIT_SUCCESS;
-}
-
-
-/*
- * Local Variables: **
- * tab-width: 4 **
- * c-basic-offset: 4 **
- * End: **
- */
+       adapter_quit();
 
+       return ret;
+}

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