binutils-gdb/gdb/mi/mi-cmd-env.c

260 lines
5.8 KiB
C

/* MI Command Set - environment commands.
Copyright 2002, 2003, 2004 Free Software Foundation, Inc.
Contributed by Red Hat Inc.
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 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. */
#include "defs.h"
#include "inferior.h"
#include "value.h"
#include "mi-out.h"
#include "mi-cmds.h"
#include "mi-getopt.h"
#include "symtab.h"
#include "target.h"
#include "environ.h"
#include "command.h"
#include "ui-out.h"
#include "top.h"
#include "gdb_string.h"
#include "gdb_stat.h"
static void env_mod_path (char *dirname, char **which_path);
extern void _initialize_mi_cmd_env (void);
static const char path_var_name[] = "PATH";
static char *orig_path = NULL;
/* The following is copied from mi-main.c so for m1 and below we can
perform old behavior and use cli commands. If ARGS is non-null,
append it to the CMD. */
static void
env_execute_cli_command (const char *cmd, const char *args)
{
if (cmd != 0)
{
struct cleanup *old_cleanups;
char *run;
if (args != NULL)
run = xstrprintf ("%s %s", cmd, args);
else
run = xstrdup (cmd);
old_cleanups = make_cleanup (xfree, run);
execute_command ( /*ui */ run, 0 /*from_tty */ );
do_cleanups (old_cleanups);
return;
}
}
/* Print working directory. */
enum mi_cmd_result
mi_cmd_env_pwd (char *command, char **argv, int argc)
{
if (argc > 0)
error (_("mi_cmd_env_pwd: No arguments required"));
if (mi_version (uiout) < 2)
{
env_execute_cli_command ("pwd", NULL);
return MI_CMD_DONE;
}
/* Otherwise the mi level is 2 or higher. */
getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
ui_out_field_string (uiout, "cwd", gdb_dirbuf);
return MI_CMD_DONE;
}
/* Change working directory. */
enum mi_cmd_result
mi_cmd_env_cd (char *command, char **argv, int argc)
{
if (argc == 0 || argc > 1)
error (_("mi_cmd_env_cd: Usage DIRECTORY"));
env_execute_cli_command ("cd", argv[0]);
return MI_CMD_DONE;
}
static void
env_mod_path (char *dirname, char **which_path)
{
if (dirname == 0 || dirname[0] == '\0')
return;
/* Call add_path with last arg 0 to indicate not to parse for
separator characters. */
add_path (dirname, which_path, 0);
}
/* Add one or more directories to start of executable search path. */
enum mi_cmd_result
mi_cmd_env_path (char *command, char **argv, int argc)
{
char *exec_path;
char *env;
int reset = 0;
int optind = 0;
int i;
char *optarg;
enum opt
{
RESET_OPT
};
static struct mi_opt opts[] =
{
{"r", RESET_OPT, 0},
0
};
dont_repeat ();
if (mi_version (uiout) < 2)
{
for (i = argc - 1; i >= 0; --i)
env_execute_cli_command ("path", argv[i]);
return MI_CMD_DONE;
}
/* Otherwise the mi level is 2 or higher. */
while (1)
{
int opt = mi_getopt ("mi_cmd_env_path", argc, argv, opts,
&optind, &optarg);
if (opt < 0)
break;
switch ((enum opt) opt)
{
case RESET_OPT:
reset = 1;
break;
}
}
argv += optind;
argc -= optind;
if (reset)
{
/* Reset implies resetting to original path first. */
exec_path = xstrdup (orig_path);
}
else
{
/* Otherwise, get current path to modify. */
env = get_in_environ (inferior_environ, path_var_name);
/* Can be null if path is not set. */
if (!env)
env = "";
exec_path = xstrdup (env);
}
for (i = argc - 1; i >= 0; --i)
env_mod_path (argv[i], &exec_path);
set_in_environ (inferior_environ, path_var_name, exec_path);
xfree (exec_path);
env = get_in_environ (inferior_environ, path_var_name);
ui_out_field_string (uiout, "path", env);
return MI_CMD_DONE;
}
/* Add zero or more directories to the front of the source path. */
enum mi_cmd_result
mi_cmd_env_dir (char *command, char **argv, int argc)
{
int i;
int optind = 0;
int reset = 0;
char *optarg;
enum opt
{
RESET_OPT
};
static struct mi_opt opts[] =
{
{"r", RESET_OPT, 0},
0
};
dont_repeat ();
if (mi_version (uiout) < 2)
{
for (i = argc - 1; i >= 0; --i)
env_execute_cli_command ("dir", argv[i]);
return MI_CMD_DONE;
}
/* Otherwise mi level is 2 or higher. */
while (1)
{
int opt = mi_getopt ("mi_cmd_env_dir", argc, argv, opts,
&optind, &optarg);
if (opt < 0)
break;
switch ((enum opt) opt)
{
case RESET_OPT:
reset = 1;
break;
}
}
argv += optind;
argc -= optind;
if (reset)
{
/* Reset means setting to default path first. */
xfree (source_path);
init_source_path ();
}
for (i = argc - 1; i >= 0; --i)
env_mod_path (argv[i], &source_path);
init_last_source_visited ();
ui_out_field_string (uiout, "source-path", source_path);
forget_cached_source_info ();
return MI_CMD_DONE;
}
void
_initialize_mi_cmd_env (void)
{
char *env;
/* We want original execution path to reset to, if desired later. */
env = get_in_environ (inferior_environ, path_var_name);
/* Can be null if path is not set. */
if (!env)
env = "";
orig_path = xstrdup (env);
}