- add search paths via new arg -s (-search). Thanks Ted Roth

- updated docs for new command

git-svn-id: svn://svn.berlios.de/openocd/trunk@312 b42882b7-edfa-0310-969c-e2dbd0fdcd60

doc/openocd.texi

@@ -159,6 +159,10 @@ locations, i.e. /usr/include, /usr/lib.
 @node Running
 @chapter Running
 @cindex running openocd
+@cindex --configfile
+@cindex --debug_level
+@cindex --logfile
+@cindex --search
 The OpenOCD runs as a daemon, waiting for connections from clients (Telnet or GDB).
 Run with @option{--help} or @option{-h} to view the available command line arguments.
 
@@ -174,6 +178,9 @@ from within a telnet or gdb session (@option{debug_level <n>}).
 
 You can redirect all output from the daemon to a file using the @option{-l <logfile>} switch.
 
+Search paths for config/script files can be added to openocd by using
+the @option{-s <search>} switch.
+
 @node Configuration
 @chapter Configuration
 @cindex configuration

src/helper/Makefile.am

@@ -1,5 +1,6 @@
 INCLUDES = $(all_includes)
 METASOURCES = AUTO
+AM_CPPFLAGS = -DPKGDATADIR=\"$(pkgdatadir)\" @CPPFLAGS@
 noinst_LIBRARIES = libhelper.a
 libhelper_a_SOURCES = binarybuffer.c configuration.c log.c interpreter.c command.c time_support.c \
 	replacements.c fileio.c

src/helper/configuration.c

@@ -29,8 +29,13 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <getopt.h>
+#include <string.h>
 
-char* config_file_name;
+static size_t num_config_files;
+static char** config_file_names;
+
+static size_t num_script_dirs;
+static char** script_search_dirs;
 
 static int help_flag;
 
@@ -40,6 +45,7 @@ static struct option long_options[] =
 
 	{"debug",			optional_argument,	0, 'd'},
 	{"file", 			required_argument,	0, 'f'},
+	{"search",			required_argument,	0, 's'},
 	{"log_output",		required_argument,	0, 'l'},
 	
 	{0, 0, 0, 0}
@@ -52,17 +58,38 @@ int configuration_output_handler(struct command_context_s *context, char* line)
 	return ERROR_OK;
 }
 
+void add_script_search_dir (const char *dir)
+{
+	num_script_dirs++;
+	script_search_dirs = (char **)realloc(script_search_dirs, (num_script_dirs+1) * sizeof (char *));
+
+	script_search_dirs[num_script_dirs-1] = strdup(dir);
+	script_search_dirs[num_script_dirs] = NULL;
+}
+
+void add_config_file_name (const char *cfg)
+{
+	num_config_files++;
+	config_file_names = (char **)realloc(config_file_names, (num_config_files+1) * sizeof (char *));
+
+	config_file_names[num_config_files-1] = strdup(cfg);
+	config_file_names[num_config_files] = NULL;
+}
+
 int parse_cmdline_args(struct command_context_s *cmd_ctx, int argc, char *argv[])
 {
 	int c;
 	char command_buffer[128];
 
+	/* Always search relative to current working dir first. */
+	add_script_search_dir(".");
+
 	while (1)
 	{	
 		/* getopt_long stores the option index here. */
 		int option_index = 0;
 		
-		c = getopt_long(argc, argv, "hd::l:f:", long_options, &option_index);
+		c = getopt_long(argc, argv, "hd::l:f:s:", long_options, &option_index);
 		
 		/* Detect the end of the options. */
 		if (c == -1)
@@ -76,7 +103,10 @@ int parse_cmdline_args(struct command_context_s *cmd_ctx, int argc, char *argv[]
 				help_flag = 1;
 				break;
 			case 'f':	/* --file | -f */
-				config_file_name = optarg;
+				add_config_file_name(optarg);
+				break;
+			case 's':	/* --search | -s */
+				add_script_search_dir(optarg);
 				break;
 			case 'd':	/* --debug | -d */
 				if (optarg)
@@ -100,22 +130,56 @@ int parse_cmdline_args(struct command_context_s *cmd_ctx, int argc, char *argv[]
 		printf("Open On-Chip Debugger\n(c) 2005 by Dominic Rath\n\n");
 		printf("--help       | -h\tdisplay this help\n");
 		printf("--file       | -f\tuse configuration file <name>\n");
+		printf("--search     | -s\tdir to search for config files and scripts.\n");
 		printf("--debug      | -d\tset debug level <0-3>\n");
 		printf("--log_output | -l\tredirect log output to file <name>\n");
 		exit(-1);
 	}	
 
+	/* Add dir for openocd supplied scripts last so that user can over
+	   ride those scripts if desired. */
+	add_script_search_dir(PKGDATADIR);
+
 	return ERROR_OK;
 }
 
+FILE *open_file_from_path (command_context_t *cmd_ctx, char *file, char *mode)
+{
+	FILE *fp = NULL;
+	char **search_dirs = script_search_dirs;
+	char *dir;
+	char full_path[1024];
+
+	while (!fp)
+	{
+		dir = *search_dirs++;
+
+		if (!dir)
+			break;
+
+		snprintf(full_path, 1024, "%s/%s", dir, file);
+		fp = fopen(full_path, mode);
+	}
+
+	if (fp)
+		command_print(cmd_ctx, "opened %s", full_path);
+
+	return fp;
+}
+
 int parse_config_file(struct command_context_s *cmd_ctx)
 {
+	char **cfg;
 	FILE *config_file;
 
-	if (!config_file_name)
-		config_file_name = "openocd.cfg";
+	if (!config_file_names)
+		add_config_file_name ("openocd.cfg");
 
-	config_file = fopen(config_file_name, "r");
+	cfg = config_file_names;
+
+	while (*cfg)
+	{
+		config_file = open_file_from_path(cmd_ctx, *cfg, "r");
 		if (!config_file)
 		{
 			ERROR("couldn't open config file");
@@ -126,6 +190,8 @@ int parse_config_file(struct command_context_s *cmd_ctx)
 
 		fclose(config_file);
 
-	return ERROR_OK;
+		cfg++;
 	}
 
+	return ERROR_OK;
+}

src/helper/configuration.h

@@ -26,6 +26,6 @@
 extern int parse_cmdline_args(struct command_context_s *cmd_ctx, int argc, char *argv[]);
 extern int parse_config_file(struct command_context_s *cmd_ctx);
 extern int configuration_output_handler(struct command_context_s *context, char* line);
+extern FILE *open_file_from_path (command_context_t *cmd_ctx, char *file, char *mode);
 
-extern char* config_file_name;
 #endif /* CONFIGURATION_H */

src/helper/interpreter.c

@@ -22,6 +22,7 @@
 #endif
 
 #include "interpreter.h"
+#include "configuration.h"
 
 #include "binarybuffer.h"
 #include <stdlib.h>
@@ -221,7 +222,8 @@ int handle_script_command(struct command_context_s *cmd_ctx, char *cmd, char **a
 	if (argc != 1)
 		command_print(cmd_ctx, "usage: script <file>");
 
-	script_file = fopen(args[0], "r");
+	script_file = open_file_from_path(cmd_ctx, args[0], "r");
+
 	if (!script_file)
 	{
 		command_print(cmd_ctx, "couldn't open script file %s", args[0]);

src/server/gdb_server.c

@@ -32,6 +32,7 @@
 #include "breakpoints.h"
 #include "flash.h"
 #include "target_request.h"
+#include "configuration.h"
 
 #include <string.h>
 #include <errno.h>
@@ -539,7 +540,7 @@ int gdb_program_handler(struct target_s *target, enum target_event event, void *
 	
 	if (target->gdb_program_script)
 	{
-		script = fopen(target->gdb_program_script, "r");
+		script = open_file_from_path(cmd_ctx, target->gdb_program_script, "r");
 		if (!script)
 		{
 			ERROR("couldn't open script file %s", target->gdb_program_script);

src/target/target.c

@@ -224,7 +224,7 @@ int target_init_handler(struct target_s *target, enum target_event event, void *
 	{
 		target_unregister_event_callback(target_init_handler, priv);
 
-		script = fopen(target->reset_script, "r");
+		script = open_file_from_path(cmd_ctx, target->reset_script, "r");
 		if (!script)
 		{
 			ERROR("couldn't open script file %s", target->reset_script);