/* Top level stuff for GDB, the GNU debugger.
- Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
- 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1986-2013 Free Software Foundation, Inc.
This file is part of GDB.
#include "cli/cli-cmds.h"
#include "python/python.h"
#include "objfiles.h"
+#include "auto-load.h"
+#include "maint.h"
+
+#include "filenames.h"
+#include "filestuff.h"
/* The selected interpreter. This will be used as a set command
variable, so it should always be malloc'ed - since
/* GDB datadir, used to store data files. */
char *gdb_datadir = 0;
+/* Non-zero if GDB_DATADIR was provided on the command line.
+ This doesn't track whether data-directory is set later from the
+ command line, but we don't reread system.gdbinit when that happens. */
+static int gdb_datadir_provided = 0;
+
/* If gdb was configured with --with-python=/path,
the possibly relocated path to python's lib directory. */
char *python_libdir = 0;
int return_child_result = 0;
int return_child_result_value = -1;
-/* Whether to enable writing into executable and core files. */
-extern int write_files;
/* GDB as it has been invoked from the command line (i.e. argv[0]). */
static char *gdb_program_name;
static void print_gdb_help (struct ui_file *);
-/* These two are used to set the external editor commands when gdb is
- farming out files to be edited by another program. */
-
-extern char *external_editor_command;
-
/* Relocate a file or directory. PROGNAME is the name by which gdb
was invoked (i.e., argv[0]). INITIAL is the default value for the
file or directory. FLAG is true if the value is relocatable, false
otherwise. Returns a newly allocated string; this may return NULL
under the same conditions as make_relative_prefix. */
+
static char *
relocate_path (const char *progname, const char *initial, int flag)
{
the result is a directory, it is used; otherwise, INITIAL is used.
The chosen directory is then canonicalized using lrealpath. This
function always returns a newly-allocated string. */
-static char *
-relocate_directory (const char *progname, const char *initial, int flag)
+
+char *
+relocate_gdb_directory (const char *initial, int flag)
{
char *dir;
- dir = relocate_path (progname, initial, flag);
+ dir = relocate_path (gdb_program_name, initial, flag);
if (dir)
{
struct stat s;
- if (stat (dir, &s) != 0 || !S_ISDIR (s.st_mode))
+ if (*dir == '\0' || stat (dir, &s) != 0 || !S_ISDIR (s.st_mode))
{
xfree (dir);
dir = NULL;
if (!initialized)
{
struct stat homebuf, cwdbuf, s;
- char *homedir, *relocated_sysgdbinit;
+ char *homedir;
if (SYSTEM_GDBINIT[0])
{
- relocated_sysgdbinit = relocate_path (gdb_program_name,
- SYSTEM_GDBINIT,
- SYSTEM_GDBINIT_RELOCATABLE);
+ int datadir_len = strlen (GDB_DATADIR);
+ int sys_gdbinit_len = strlen (SYSTEM_GDBINIT);
+ char *relocated_sysgdbinit;
+
+ /* If SYSTEM_GDBINIT lives in data-directory, and data-directory
+ has been provided, search for SYSTEM_GDBINIT there. */
+ if (gdb_datadir_provided
+ && datadir_len < sys_gdbinit_len
+ && filename_ncmp (SYSTEM_GDBINIT, GDB_DATADIR, datadir_len) == 0
+ && IS_DIR_SEPARATOR (SYSTEM_GDBINIT[datadir_len]))
+ {
+ /* Append the part of SYSTEM_GDBINIT that follows GDB_DATADIR
+ to gdb_datadir. */
+ char *tmp_sys_gdbinit = xstrdup (SYSTEM_GDBINIT + datadir_len);
+ char *p;
+
+ for (p = tmp_sys_gdbinit; IS_DIR_SEPARATOR (*p); ++p)
+ continue;
+ relocated_sysgdbinit = concat (gdb_datadir, SLASH_STRING, p,
+ NULL);
+ xfree (tmp_sys_gdbinit);
+ }
+ else
+ {
+ relocated_sysgdbinit = relocate_path (gdb_program_name,
+ SYSTEM_GDBINIT,
+ SYSTEM_GDBINIT_RELOCATABLE);
+ }
if (relocated_sysgdbinit && stat (relocated_sysgdbinit, &s) == 0)
sysgdbinit = relocated_sysgdbinit;
else
/* If the .gdbinit file in the current directory is the same as
the $HOME/.gdbinit file, it should not be sourced. homebuf
- and cwdbuf are used in that purpose. Make sure that the stats
+ and cwdbuf are used in that purpose. Make sure that the stats
are zero in case one of them fails (this guarantees that they
won't match if either exists). */
static int
captured_command_loop (void *data)
{
+ /* Top-level execution commands can be run on the background from
+ here on. */
+ interpreter_async = 1;
+
current_interp_command_loop ();
/* FIXME: cagney/1999-11-05: A correct command_loop() implementaton
would clean things up (restoring the cleanup chain) to the state
are not that well behaved. do_cleanups should either be replaced
with a do_cleanups call (to cover the problem) or an assertion
check to detect bad FUNCs code. */
- do_cleanups (ALL_CLEANUPS);
+ do_cleanups (all_cleanups ());
/* If the command_loop returned, normally (rather than threw an
- error) we try to quit. If the quit is aborted, catch_errors()
+ error) we try to quit. If the quit is aborted, catch_errors()
which called this catch the signal and restart the command
loop. */
quit_command (NULL, instream == stdin);
return 1;
}
+/* Arguments of --command option and its counterpart. */
+typedef struct cmdarg {
+ /* Type of this option. */
+ enum {
+ /* Option type -x. */
+ CMDARG_FILE,
+
+ /* Option type -ex. */
+ CMDARG_COMMAND,
+
+ /* Option type -ix. */
+ CMDARG_INIT_FILE,
+
+ /* Option type -iex. */
+ CMDARG_INIT_COMMAND
+ } type;
+
+ /* Value of this option - filename or the GDB command itself. String memory
+ is not owned by this structure despite it is 'const'. */
+ char *string;
+} cmdarg_s;
+
+/* Define type VEC (cmdarg_s). */
+DEF_VEC_O (cmdarg_s);
+
static int
captured_main (void *data)
{
char **argv = context->argv;
static int quiet = 0;
static int set_args = 0;
+ static int inhibit_home_gdbinit = 0;
/* Pointers to various arguments from command line. */
char *symarg = NULL;
initializer. */
static int print_help;
static int print_version;
+ static int print_configuration;
/* Pointers to all arguments of --command option. */
- struct cmdarg {
- enum {
- CMDARG_FILE,
- CMDARG_COMMAND
- } type;
- char *string;
- } *cmdarg;
- /* Allocated size of cmdarg. */
- int cmdsize;
- /* Number of elements of cmdarg used. */
- int ncmd;
+ VEC (cmdarg_s) *cmdarg_vec = NULL;
+ struct cmdarg *cmdarg_p;
/* Indices of all arguments of --directory option. */
char **dirarg;
int save_auto_load;
struct objfile *objfile;
- struct cleanup *pre_stat_chain = make_command_stats_cleanup (0);
+ struct cleanup *pre_stat_chain;
+
+#ifdef HAVE_SBRK
+ /* Set this before calling make_command_stats_cleanup. */
+ lim_at_start = (char *) sbrk (0);
+#endif
+
+ pre_stat_chain = make_command_stats_cleanup (0);
#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
setlocale (LC_MESSAGES, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
-#ifdef HAVE_SBRK
- lim_at_start = (char *) sbrk (0);
-#endif
+ bfd_init ();
+ notice_open_fds ();
- cmdsize = 1;
- cmdarg = (struct cmdarg *) xmalloc (cmdsize * sizeof (*cmdarg));
- ncmd = 0;
+ make_cleanup (VEC_cleanup (cmdarg_s), &cmdarg_vec);
dirsize = 1;
dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg));
ndir = 0;
- quit_flag = 0;
- line = (char *) xmalloc (linesize);
- line[0] = '\0'; /* Terminate saved (now empty) cmd line. */
+ clear_quit_flag ();
+ saved_command_line = (char *) xmalloc (saved_command_line_size);
+ saved_command_line[0] = '\0';
instream = stdin;
gdb_stdout = stdio_fileopen (stdout);
gdb_stdtargerr = gdb_stderr; /* for moment */
gdb_stdtargin = gdb_stdin; /* for moment */
+#ifdef __MINGW32__
+ /* On Windows, argv[0] is not necessarily set to absolute form when
+ GDB is found along PATH, without which relocation doesn't work. */
+ gdb_program_name = windows_get_absolute_argv0 (argv[0]);
+#else
gdb_program_name = xstrdup (argv[0]);
+#endif
if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)))
/* Don't use *_filtered or warning() (which relies on
current_target) until after initialize_all_files(). */
fprintf_unfiltered (gdb_stderr,
- _("%s: warning: error finding working directory: %s\n"),
+ _("%s: warning: error finding "
+ "working directory: %s\n"),
argv[0], safe_strerror (errno));
current_directory = gdb_dirbuf;
/* Set the sysroot path. */
- gdb_sysroot = relocate_directory (argv[0], TARGET_SYSTEM_ROOT,
- TARGET_SYSTEM_ROOT_RELOCATABLE);
+ gdb_sysroot = relocate_gdb_directory (TARGET_SYSTEM_ROOT,
+ TARGET_SYSTEM_ROOT_RELOCATABLE);
- debug_file_directory = relocate_directory (argv[0], DEBUGDIR,
- DEBUGDIR_RELOCATABLE);
+ debug_file_directory = relocate_gdb_directory (DEBUGDIR,
+ DEBUGDIR_RELOCATABLE);
- gdb_datadir = relocate_directory (argv[0], GDB_DATADIR,
- GDB_DATADIR_RELOCATABLE);
+ gdb_datadir = relocate_gdb_directory (GDB_DATADIR,
+ GDB_DATADIR_RELOCATABLE);
#ifdef WITH_PYTHON_PATH
- /* For later use in helping Python find itself. */
- python_libdir = relocate_directory (argv[0],
- concat (WITH_PYTHON_PATH,
- SLASH_STRING, "lib", NULL),
- PYTHON_PATH_RELOCATABLE);
+ {
+ /* For later use in helping Python find itself. */
+ char *tmp = concat (WITH_PYTHON_PATH, SLASH_STRING, "lib", NULL);
+
+ python_libdir = relocate_gdb_directory (tmp, PYTHON_PATH_RELOCATABLE);
+ xfree (tmp);
+ }
#endif
#ifdef RELOC_SRCDIR
add_substitute_path_rule (RELOC_SRCDIR,
- make_relative_prefix (argv[0], BINDIR,
+ make_relative_prefix (gdb_program_name, BINDIR,
RELOC_SRCDIR));
#endif
OPT_STATISTICS,
OPT_TUI,
OPT_NOWINDOWS,
- OPT_WINDOWS
+ OPT_WINDOWS,
+ OPT_IX,
+ OPT_IEX
};
static struct option long_options[] =
{
{"quiet", no_argument, &quiet, 1},
{"q", no_argument, &quiet, 1},
{"silent", no_argument, &quiet, 1},
+ {"nh", no_argument, &inhibit_home_gdbinit, 1},
{"nx", no_argument, &inhibit_gdbinit, 1},
{"n", no_argument, &inhibit_gdbinit, 1},
{"batch-silent", no_argument, 0, 'B'},
{"batch", no_argument, &batch_flag, 1},
- {"epoch", no_argument, &epoch_interface, 1},
/* This is a synonym for "--annotate=1". --annotate is now
preferred, but keep this here for a long time because people
{"command", required_argument, 0, 'x'},
{"eval-command", required_argument, 0, 'X'},
{"version", no_argument, &print_version, 1},
+ {"configuration", no_argument, &print_configuration, 1},
{"x", required_argument, 0, 'x'},
{"ex", required_argument, 0, 'X'},
+ {"init-command", required_argument, 0, OPT_IX},
+ {"init-eval-command", required_argument, 0, OPT_IEX},
+ {"ix", required_argument, 0, OPT_IX},
+ {"iex", required_argument, 0, OPT_IEX},
#ifdef GDBTK
{"tclcommand", required_argument, 0, 'z'},
{"enable-external-editor", no_argument, 0, 'y'},
break;
case OPT_STATISTICS:
/* Enable the display of both time and space usage. */
- set_display_time (1);
- set_display_space (1);
+ set_per_command_time (1);
+ set_per_command_space (1);
break;
case OPT_TUI:
/* --tui is equivalent to -i=tui. */
break;
case 'f':
annotation_level = 1;
-/* We have probably been invoked from emacs. Disable window interface. */
+ /* We have probably been invoked from emacs. Disable
+ window interface. */
use_windows = 0;
break;
case 's':
pidarg = optarg;
break;
case 'x':
- cmdarg[ncmd].type = CMDARG_FILE;
- cmdarg[ncmd++].string = optarg;
- if (ncmd >= cmdsize)
- {
- cmdsize *= 2;
- cmdarg = xrealloc ((char *) cmdarg,
- cmdsize * sizeof (*cmdarg));
- }
+ {
+ struct cmdarg cmdarg = { CMDARG_FILE, optarg };
+
+ VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg);
+ }
break;
case 'X':
- cmdarg[ncmd].type = CMDARG_COMMAND;
- cmdarg[ncmd++].string = optarg;
- if (ncmd >= cmdsize)
- {
- cmdsize *= 2;
- cmdarg = xrealloc ((char *) cmdarg,
- cmdsize * sizeof (*cmdarg));
- }
+ {
+ struct cmdarg cmdarg = { CMDARG_COMMAND, optarg };
+
+ VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg);
+ }
+ break;
+ case OPT_IX:
+ {
+ struct cmdarg cmdarg = { CMDARG_INIT_FILE, optarg };
+
+ VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg);
+ }
+ break;
+ case OPT_IEX:
+ {
+ struct cmdarg cmdarg = { CMDARG_INIT_COMMAND, optarg };
+
+ VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg);
+ }
break;
case 'B':
batch_flag = batch_silent = 1;
case 'D':
xfree (gdb_datadir);
gdb_datadir = xstrdup (optarg);
+ gdb_datadir_provided = 1;
break;
#ifdef GDBTK
case 'z':
if (!gdbtk_test (optarg))
{
- fprintf_unfiltered (gdb_stderr,
- _("%s: unable to load tclcommand file \"%s\""),
+ fprintf_unfiltered (gdb_stderr,
+ _("%s: unable to load "
+ "tclcommand file \"%s\""),
argv[0], optarg);
exit (1);
}
break;
case 'w':
{
+ /* Set the external editor commands when gdb is farming out files
+ to be edited by another program. */
+ extern char *external_editor_command;
+
external_editor_command = xstrdup (optarg);
break;
}
/* Don't use *_filtered or warning() (which relies on
current_target) until after initialize_all_files(). */
- fprintf_unfiltered
- (gdb_stderr,
- _("warning: could not set timeout limit to `%s'.\n"), optarg);
+ fprintf_unfiltered (gdb_stderr,
+ _("warning: could not set "
+ "timeout limit to `%s'.\n"), optarg);
else
remote_timeout = i;
}
case '?':
fprintf_unfiltered (gdb_stderr,
- _("Use `%s --help' for a complete list of options.\n"),
+ _("Use `%s --help' for a "
+ "complete list of options.\n"),
argv[0]);
exit (1);
}
}
- /* If --help or --version, disable window interface. */
- if (print_help || print_version)
+ /* If --help or --version or --configuration, disable window
+ interface. */
+ if (print_help || print_version || print_configuration)
{
use_windows = 0;
}
/* Initialize all files. Give the interpreter a chance to take
control of the console via the deprecated_init_ui_hook (). */
- gdb_init (argv[0]);
+ gdb_init (gdb_program_name);
/* Now that gdb_init has created the initial inferior, we're in
position to set args for that inferior. */
if (optind >= argc)
{
fprintf_unfiltered (gdb_stderr,
- _("%s: `--args' specified but no program specified\n"),
+ _("%s: `--args' specified but "
+ "no program specified\n"),
argv[0]);
exit (1);
}
/* Any argument left on the command line is unexpected and
will be ignored. Inform the user. */
if (optind < argc)
- fprintf_unfiltered (gdb_stderr, _("\
-Excess command line arguments ignored. (%s%s)\n"),
+ fprintf_unfiltered (gdb_stderr,
+ _("Excess command line "
+ "arguments ignored. (%s%s)\n"),
argv[optind],
(optind == argc - 1) ? "" : " ...");
}
- /* Lookup gdbinit files. Note that the gdbinit file name may be
+ /* Lookup gdbinit files. Note that the gdbinit file name may be
overriden during file initialization, so get_init_files should be
called after gdb_init. */
get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit);
exit (0);
}
+ if (print_configuration)
+ {
+ print_gdb_configuration (gdb_stdout);
+ wrap_here ("");
+ printf_filtered ("\n");
+ exit (0);
+ }
+
/* FIXME: cagney/2003-02-03: The big hack (part 1 of 2) that lets
GDB retain the old MI1 interpreter startup behavior. Output the
copyright message before the interpreter is installed. That way
global parameters, which are independent of what file you are
debugging or what directory you are in. */
- if (home_gdbinit && !inhibit_gdbinit)
+ if (home_gdbinit && !inhibit_gdbinit && !inhibit_home_gdbinit)
catch_command_errors (source_script, home_gdbinit, 0, RETURN_MASK_ALL);
+ /* Process '-ix' and '-iex' options early. */
+ for (i = 0; VEC_iterate (cmdarg_s, cmdarg_vec, i, cmdarg_p); i++)
+ switch (cmdarg_p->type)
+ {
+ case CMDARG_INIT_FILE:
+ catch_command_errors (source_script, cmdarg_p->string,
+ !batch_flag, RETURN_MASK_ALL);
+ break;
+ case CMDARG_INIT_COMMAND:
+ catch_command_errors (execute_command, cmdarg_p->string,
+ !batch_flag, RETURN_MASK_ALL);
+ break;
+ }
+
/* Now perform all the actions indicated by the arguments. */
if (cdarg != NULL)
{
/* Skip auto-loading section-specified scripts until we've sourced
local_gdbinit (which is often used to augment the source search
path). */
- save_auto_load = gdbpy_global_auto_load;
- gdbpy_global_auto_load = 0;
+ save_auto_load = global_auto_load;
+ global_auto_load = 0;
if (execarg != NULL
&& symarg != NULL
/* The exec file and the symbol-file are the same. If we can't
open it, better only print one error message.
catch_command_errors returns non-zero on success! */
- if (catch_command_errors (exec_file_attach, execarg, !batch_flag, RETURN_MASK_ALL))
- catch_command_errors (symbol_file_add_main, symarg, !batch_flag, RETURN_MASK_ALL);
+ if (catch_command_errors (exec_file_attach, execarg,
+ !batch_flag, RETURN_MASK_ALL))
+ catch_command_errors (symbol_file_add_main, symarg,
+ !batch_flag, RETURN_MASK_ALL);
}
else
{
if (execarg != NULL)
- catch_command_errors (exec_file_attach, execarg, !batch_flag, RETURN_MASK_ALL);
+ catch_command_errors (exec_file_attach, execarg,
+ !batch_flag, RETURN_MASK_ALL);
if (symarg != NULL)
- catch_command_errors (symbol_file_add_main, symarg, !batch_flag, RETURN_MASK_ALL);
+ catch_command_errors (symbol_file_add_main, symarg,
+ !batch_flag, RETURN_MASK_ALL);
}
if (corearg && pidarg)
- error (_("\
-Can't attach to process and specify a core file at the same time."));
+ error (_("Can't attach to process and specify "
+ "a core file at the same time."));
if (corearg != NULL)
catch_command_errors (core_file_command, corearg,
/* Read the .gdbinit file in the current directory, *if* it isn't
the same as the $HOME/.gdbinit file (it should exist, also). */
- if (local_gdbinit && !inhibit_gdbinit)
- catch_command_errors (source_script, local_gdbinit, 0, RETURN_MASK_ALL);
+ if (local_gdbinit)
+ {
+ auto_load_local_gdbinit_pathname = gdb_realpath (local_gdbinit);
+
+ if (!inhibit_gdbinit && auto_load_local_gdbinit
+ && file_is_auto_load_safe (local_gdbinit,
+ _("auto-load: Loading .gdbinit "
+ "file \"%s\".\n"),
+ local_gdbinit))
+ {
+ auto_load_local_gdbinit_loaded = 1;
+
+ catch_command_errors (source_script, local_gdbinit, 0,
+ RETURN_MASK_ALL);
+ }
+ }
/* Now that all .gdbinit's have been read and all -d options have been
processed, we can read any scripts mentioned in SYMARG.
We wait until now because it is common to add to the source search
path in local_gdbinit. */
- gdbpy_global_auto_load = save_auto_load;
+ global_auto_load = save_auto_load;
ALL_OBJFILES (objfile)
load_auto_scripts_for_objfile (objfile);
- for (i = 0; i < ncmd; i++)
+ /* Process '-x' and '-ex' options. */
+ for (i = 0; VEC_iterate (cmdarg_s, cmdarg_vec, i, cmdarg_p); i++)
+ switch (cmdarg_p->type)
{
- if (cmdarg[i].type == CMDARG_FILE)
- catch_command_errors (source_script, cmdarg[i].string,
+ case CMDARG_FILE:
+ catch_command_errors (source_script, cmdarg_p->string,
!batch_flag, RETURN_MASK_ALL);
- else /* cmdarg[i].type == CMDARG_COMMAND */
- catch_command_errors (execute_command, cmdarg[i].string,
+ break;
+ case CMDARG_COMMAND:
+ catch_command_errors (execute_command, cmdarg_p->string,
!batch_flag, RETURN_MASK_ALL);
+ break;
}
- xfree (cmdarg);
/* Read in the old history after all the command files have been
read. */
Execute a single GDB command.\n\
May be used multiple times and in conjunction\n\
with --command.\n\
+ --init-command=FILE, -ix Like -x but execute it before loading inferior.\n\
+ --init-eval-command=COMMAND, -iex Like -ex but before loading inferior.\n\
--core=COREFILE Analyze the core dump COREFILE.\n\
--pid=PID Attach to running process PID.\n\
"), stream);
fputs_unfiltered (_("\
--dbx DBX compatibility mode.\n\
--directory=DIR Search for source files in DIR.\n\
- --epoch Output information used by epoch emacs-GDB interface.\n\
--exec=EXECFILE Use EXECFILE as the executable.\n\
--fullname Output information used by emacs-GDB interface.\n\
--help Print this message.\n\
fputs_unfiltered (_("\
-l TIMEOUT Set timeout in seconds for remote debugging.\n\
--nw Do not use a window interface.\n\
- --nx Do not read "), stream);
+ --nx Do not read any "), stream);
+ fputs_unfiltered (gdbinit, stream);
+ fputs_unfiltered (_(" files.\n\
+ --nh Do not read "), stream);
fputs_unfiltered (gdbinit, stream);
- fputs_unfiltered (_(" file.\n\
+ fputs_unfiltered (_(" file from home directory.\n\
--quiet Do not print version number on startup.\n\
--readnow Fully read symbol files on first access.\n\
"), stream);
#endif
fputs_unfiltered (_("\
--version Print version information and then exit.\n\
+ --configuration Print details about GDB configuration and then exit.\n\
-w Use a window interface.\n\
--write Set writing into executable and core files.\n\
--xdb XDB compatibility mode.\n\
"), home_gdbinit);
if (local_gdbinit)
fprintf_unfiltered (stream, _("\
- * local init file: ./%s\n\
+ * local init file (see also 'set auto-load local-gdbinit'): ./%s\n\
"), local_gdbinit);
fputs_unfiltered (_("\n\
For more information, type \"help\" from within GDB, or consult the\n\