| /* Top level stuff for GDB, the GNU debugger. |
| |
| Copyright (C) 1986-2005, 2007-2012 Free Software Foundation, 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 3 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, see <http://www.gnu.org/licenses/>. */ |
| |
| #include "defs.h" |
| #include "top.h" |
| #include "target.h" |
| #include "inferior.h" |
| #include "symfile.h" |
| #include "gdbcore.h" |
| |
| #include "exceptions.h" |
| #include "getopt.h" |
| |
| #include <sys/types.h> |
| #include "gdb_stat.h" |
| #include <ctype.h> |
| |
| #include "gdb_string.h" |
| #include "event-loop.h" |
| #include "ui-out.h" |
| |
| #include "interps.h" |
| #include "main.h" |
| #include "source.h" |
| #include "cli/cli-cmds.h" |
| #include "python/python.h" |
| #include "objfiles.h" |
| #include "auto-load.h" |
| |
| /* The selected interpreter. This will be used as a set command |
| variable, so it should always be malloc'ed - since |
| do_setshow_command will free it. */ |
| char *interpreter_p; |
| |
| /* Whether xdb commands will be handled. */ |
| int xdb_commands = 0; |
| |
| /* Whether dbx commands will be handled. */ |
| int dbx_commands = 0; |
| |
| /* System root path, used to find libraries etc. */ |
| char *gdb_sysroot = 0; |
| |
| /* GDB datadir, used to store data files. */ |
| char *gdb_datadir = 0; |
| |
| /* If gdb was configured with --with-python=/path, |
| the possibly relocated path to python's lib directory. */ |
| char *python_libdir = 0; |
| |
| struct ui_file *gdb_stdout; |
| struct ui_file *gdb_stderr; |
| struct ui_file *gdb_stdlog; |
| struct ui_file *gdb_stdin; |
| /* Target IO streams. */ |
| struct ui_file *gdb_stdtargin; |
| struct ui_file *gdb_stdtarg; |
| struct ui_file *gdb_stdtargerr; |
| |
| /* True if --batch or --batch-silent was seen. */ |
| int batch_flag = 0; |
| |
| /* Support for the --batch-silent option. */ |
| int batch_silent = 0; |
| |
| /* Support for --return-child-result option. |
| Set the default to -1 to return error in the case |
| that the program does not run or does not complete. */ |
| int return_child_result = 0; |
| int return_child_result_value = -1; |
| |
| |
| /* 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 *); |
| |
| /* 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) |
| { |
| if (flag) |
| return make_relative_prefix (progname, BINDIR, initial); |
| return xstrdup (initial); |
| } |
| |
| /* Like relocate_path, but specifically checks for a directory. |
| INITIAL is relocated according to the rules of relocate_path. If |
| 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. */ |
| |
| char * |
| relocate_gdb_directory (const char *initial, int flag) |
| { |
| char *dir; |
| |
| dir = relocate_path (gdb_program_name, initial, flag); |
| if (dir) |
| { |
| struct stat s; |
| |
| if (stat (dir, &s) != 0 || !S_ISDIR (s.st_mode)) |
| { |
| xfree (dir); |
| dir = NULL; |
| } |
| } |
| if (!dir) |
| dir = xstrdup (initial); |
| |
| /* Canonicalize the directory. */ |
| if (*dir) |
| { |
| char *canon_sysroot = lrealpath (dir); |
| |
| if (canon_sysroot) |
| { |
| xfree (dir); |
| dir = canon_sysroot; |
| } |
| } |
| |
| return dir; |
| } |
| |
| /* Compute the locations of init files that GDB should source and |
| return them in SYSTEM_GDBINIT, HOME_GDBINIT, LOCAL_GDBINIT. If |
| there is no system gdbinit (resp. home gdbinit and local gdbinit) |
| to be loaded, then SYSTEM_GDBINIT (resp. HOME_GDBINIT and |
| LOCAL_GDBINIT) is set to NULL. */ |
| static void |
| get_init_files (char **system_gdbinit, |
| char **home_gdbinit, |
| char **local_gdbinit) |
| { |
| static char *sysgdbinit = NULL; |
| static char *homeinit = NULL; |
| static char *localinit = NULL; |
| static int initialized = 0; |
| |
| if (!initialized) |
| { |
| struct stat homebuf, cwdbuf, s; |
| char *homedir, *relocated_sysgdbinit; |
| |
| if (SYSTEM_GDBINIT[0]) |
| { |
| relocated_sysgdbinit = relocate_path (gdb_program_name, |
| SYSTEM_GDBINIT, |
| SYSTEM_GDBINIT_RELOCATABLE); |
| if (relocated_sysgdbinit && stat (relocated_sysgdbinit, &s) == 0) |
| sysgdbinit = relocated_sysgdbinit; |
| else |
| xfree (relocated_sysgdbinit); |
| } |
| |
| homedir = getenv ("HOME"); |
| |
| /* 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 |
| are zero in case one of them fails (this guarantees that they |
| won't match if either exists). */ |
| |
| memset (&homebuf, 0, sizeof (struct stat)); |
| memset (&cwdbuf, 0, sizeof (struct stat)); |
| |
| if (homedir) |
| { |
| homeinit = xstrprintf ("%s/%s", homedir, gdbinit); |
| if (stat (homeinit, &homebuf) != 0) |
| { |
| xfree (homeinit); |
| homeinit = NULL; |
| } |
| } |
| |
| if (stat (gdbinit, &cwdbuf) == 0) |
| { |
| if (!homeinit |
| || memcmp ((char *) &homebuf, (char *) &cwdbuf, |
| sizeof (struct stat))) |
| localinit = gdbinit; |
| } |
| |
| initialized = 1; |
| } |
| |
| *system_gdbinit = sysgdbinit; |
| *home_gdbinit = homeinit; |
| *local_gdbinit = localinit; |
| } |
| |
| /* Call command_loop. If it happens to return, pass that through as a |
| non-zero return status. */ |
| |
| 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 |
| they were just prior to the call. Technically, this means that |
| the do_cleanups() below is redundant. Unfortunately, many FUNCs |
| 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 ()); |
| /* If the command_loop returned, normally (rather than threw an |
| 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) |
| { |
| struct captured_main_args *context = data; |
| int argc = context->argc; |
| char **argv = context->argv; |
| static int quiet = 0; |
| static int set_args = 0; |
| |
| /* Pointers to various arguments from command line. */ |
| char *symarg = NULL; |
| char *execarg = NULL; |
| char *pidarg = NULL; |
| char *corearg = NULL; |
| char *pid_or_core_arg = NULL; |
| char *cdarg = NULL; |
| char *ttyarg = NULL; |
| |
| /* These are static so that we can take their address in an |
| initializer. */ |
| static int print_help; |
| static int print_version; |
| |
| /* Pointers to all arguments of --command option. */ |
| VEC (cmdarg_s) *cmdarg_vec = NULL; |
| struct cmdarg *cmdarg_p; |
| |
| /* Indices of all arguments of --directory option. */ |
| char **dirarg; |
| /* Allocated size. */ |
| int dirsize; |
| /* Number of elements used. */ |
| int ndir; |
| |
| /* gdb init files. */ |
| char *system_gdbinit; |
| char *home_gdbinit; |
| char *local_gdbinit; |
| |
| int i; |
| int save_auto_load; |
| struct objfile *objfile; |
| |
| 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, ""); |
| #endif |
| #if defined (HAVE_SETLOCALE) |
| setlocale (LC_CTYPE, ""); |
| #endif |
| bindtextdomain (PACKAGE, LOCALEDIR); |
| textdomain (PACKAGE); |
| |
| make_cleanup (VEC_cleanup (cmdarg_s), &cmdarg_vec); |
| dirsize = 1; |
| dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg)); |
| ndir = 0; |
| |
| quit_flag = 0; |
| saved_command_line = (char *) xmalloc (saved_command_line_size); |
| saved_command_line[0] = '\0'; |
| instream = stdin; |
| |
| gdb_stdout = stdio_fileopen (stdout); |
| gdb_stderr = stdio_fileopen (stderr); |
| gdb_stdlog = gdb_stderr; /* for moment */ |
| gdb_stdtarg = gdb_stderr; /* for moment */ |
| gdb_stdin = stdio_fileopen (stdin); |
| gdb_stdtargerr = gdb_stderr; /* for moment */ |
| gdb_stdtargin = gdb_stdin; /* for moment */ |
| |
| gdb_program_name = xstrdup (argv[0]); |
| |
| 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"), |
| argv[0], safe_strerror (errno)); |
| |
| current_directory = gdb_dirbuf; |
| |
| /* Set the sysroot path. */ |
| gdb_sysroot = relocate_gdb_directory (TARGET_SYSTEM_ROOT, |
| TARGET_SYSTEM_ROOT_RELOCATABLE); |
| |
| debug_file_directory = relocate_gdb_directory (DEBUGDIR, |
| DEBUGDIR_RELOCATABLE); |
| |
| gdb_datadir = relocate_gdb_directory (GDB_DATADIR, |
| GDB_DATADIR_RELOCATABLE); |
| |
| #ifdef WITH_PYTHON_PATH |
| { |
| /* 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, |
| RELOC_SRCDIR)); |
| #endif |
| |
| /* There will always be an interpreter. Either the one passed into |
| this captured main, or one specified by the user at start up, or |
| the console. Initialize the interpreter to the one requested by |
| the application. */ |
| interpreter_p = xstrdup (context->interpreter_p); |
| |
| /* Parse arguments and options. */ |
| { |
| int c; |
| /* When var field is 0, use flag field to record the equivalent |
| short option (or arbitrary numbers starting at 10 for those |
| with no equivalent). */ |
| enum { |
| OPT_SE = 10, |
| OPT_CD, |
| OPT_ANNOTATE, |
| OPT_STATISTICS, |
| OPT_TUI, |
| OPT_NOWINDOWS, |
| OPT_WINDOWS, |
| OPT_IX, |
| OPT_IEX |
| }; |
| static struct option long_options[] = |
| { |
| {"tui", no_argument, 0, OPT_TUI}, |
| {"xdb", no_argument, &xdb_commands, 1}, |
| {"dbx", no_argument, &dbx_commands, 1}, |
| {"readnow", no_argument, &readnow_symbol_files, 1}, |
| {"r", no_argument, &readnow_symbol_files, 1}, |
| {"quiet", no_argument, &quiet, 1}, |
| {"q", no_argument, &quiet, 1}, |
| {"silent", no_argument, &quiet, 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 |
| will be running emacses which use --fullname. */ |
| {"fullname", no_argument, 0, 'f'}, |
| {"f", no_argument, 0, 'f'}, |
| |
| {"annotate", required_argument, 0, OPT_ANNOTATE}, |
| {"help", no_argument, &print_help, 1}, |
| {"se", required_argument, 0, OPT_SE}, |
| {"symbols", required_argument, 0, 's'}, |
| {"s", required_argument, 0, 's'}, |
| {"exec", required_argument, 0, 'e'}, |
| {"e", required_argument, 0, 'e'}, |
| {"core", required_argument, 0, 'c'}, |
| {"c", required_argument, 0, 'c'}, |
| {"pid", required_argument, 0, 'p'}, |
| {"p", required_argument, 0, 'p'}, |
| {"command", required_argument, 0, 'x'}, |
| {"eval-command", required_argument, 0, 'X'}, |
| {"version", no_argument, &print_version, 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'}, |
| {"editor-command", required_argument, 0, 'w'}, |
| #endif |
| {"ui", required_argument, 0, 'i'}, |
| {"interpreter", required_argument, 0, 'i'}, |
| {"i", required_argument, 0, 'i'}, |
| {"directory", required_argument, 0, 'd'}, |
| {"d", required_argument, 0, 'd'}, |
| {"data-directory", required_argument, 0, 'D'}, |
| {"cd", required_argument, 0, OPT_CD}, |
| {"tty", required_argument, 0, 't'}, |
| {"baud", required_argument, 0, 'b'}, |
| {"b", required_argument, 0, 'b'}, |
| {"nw", no_argument, NULL, OPT_NOWINDOWS}, |
| {"nowindows", no_argument, NULL, OPT_NOWINDOWS}, |
| {"w", no_argument, NULL, OPT_WINDOWS}, |
| {"windows", no_argument, NULL, OPT_WINDOWS}, |
| {"statistics", no_argument, 0, OPT_STATISTICS}, |
| {"write", no_argument, &write_files, 1}, |
| {"args", no_argument, &set_args, 1}, |
| {"l", required_argument, 0, 'l'}, |
| {"return-child-result", no_argument, &return_child_result, 1}, |
| {0, no_argument, 0, 0} |
| }; |
| |
| while (1) |
| { |
| int option_index; |
| |
| c = getopt_long_only (argc, argv, "", |
| long_options, &option_index); |
| if (c == EOF || set_args) |
| break; |
| |
| /* Long option that takes an argument. */ |
| if (c == 0 && long_options[option_index].flag == 0) |
| c = long_options[option_index].val; |
| |
| switch (c) |
| { |
| case 0: |
| /* Long option that just sets a flag. */ |
| break; |
| case OPT_SE: |
| symarg = optarg; |
| execarg = optarg; |
| break; |
| case OPT_CD: |
| cdarg = optarg; |
| break; |
| case OPT_ANNOTATE: |
| /* FIXME: what if the syntax is wrong (e.g. not digits)? */ |
| annotation_level = atoi (optarg); |
| break; |
| case OPT_STATISTICS: |
| /* Enable the display of both time and space usage. */ |
| set_display_time (1); |
| set_display_space (1); |
| break; |
| case OPT_TUI: |
| /* --tui is equivalent to -i=tui. */ |
| #ifdef TUI |
| xfree (interpreter_p); |
| interpreter_p = xstrdup (INTERP_TUI); |
| #else |
| fprintf_unfiltered (gdb_stderr, |
| _("%s: TUI mode is not supported\n"), |
| argv[0]); |
| exit (1); |
| #endif |
| break; |
| case OPT_WINDOWS: |
| /* FIXME: cagney/2003-03-01: Not sure if this option is |
| actually useful, and if it is, what it should do. */ |
| #ifdef GDBTK |
| /* --windows is equivalent to -i=insight. */ |
| xfree (interpreter_p); |
| interpreter_p = xstrdup (INTERP_INSIGHT); |
| #endif |
| use_windows = 1; |
| break; |
| case OPT_NOWINDOWS: |
| /* -nw is equivalent to -i=console. */ |
| xfree (interpreter_p); |
| interpreter_p = xstrdup (INTERP_CONSOLE); |
| use_windows = 0; |
| break; |
| case 'f': |
| annotation_level = 1; |
| /* We have probably been invoked from emacs. Disable |
| window interface. */ |
| use_windows = 0; |
| break; |
| case 's': |
| symarg = optarg; |
| break; |
| case 'e': |
| execarg = optarg; |
| break; |
| case 'c': |
| corearg = optarg; |
| break; |
| case 'p': |
| pidarg = optarg; |
| break; |
| case 'x': |
| { |
| struct cmdarg cmdarg = { CMDARG_FILE, optarg }; |
| |
| VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg); |
| } |
| break; |
| case 'X': |
| { |
| 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; |
| gdb_stdout = ui_file_new(); |
| break; |
| case 'D': |
| xfree (gdb_datadir); |
| gdb_datadir = xstrdup (optarg); |
| break; |
| #ifdef GDBTK |
| case 'z': |
| { |
| extern int gdbtk_test (char *); |
| |
| if (!gdbtk_test (optarg)) |
| { |
| fprintf_unfiltered (gdb_stderr, |
| _("%s: unable to load " |
| "tclcommand file \"%s\""), |
| argv[0], optarg); |
| exit (1); |
| } |
| break; |
| } |
| case 'y': |
| /* Backwards compatibility only. */ |
| 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; |
| } |
| #endif /* GDBTK */ |
| case 'i': |
| xfree (interpreter_p); |
| interpreter_p = xstrdup (optarg); |
| break; |
| case 'd': |
| dirarg[ndir++] = optarg; |
| if (ndir >= dirsize) |
| { |
| dirsize *= 2; |
| dirarg = (char **) xrealloc ((char *) dirarg, |
| dirsize * sizeof (*dirarg)); |
| } |
| break; |
| case 't': |
| ttyarg = optarg; |
| break; |
| case 'q': |
| quiet = 1; |
| break; |
| case 'b': |
| { |
| int i; |
| char *p; |
| |
| i = strtol (optarg, &p, 0); |
| if (i == 0 && p == optarg) |
| |
| /* Don't use *_filtered or warning() (which relies on |
| current_target) until after initialize_all_files(). */ |
| |
| fprintf_unfiltered |
| (gdb_stderr, |
| _("warning: could not set baud rate to `%s'.\n"), optarg); |
| else |
| baud_rate = i; |
| } |
| break; |
| case 'l': |
| { |
| int i; |
| char *p; |
| |
| i = strtol (optarg, &p, 0); |
| if (i == 0 && p == optarg) |
| |
| /* 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); |
| else |
| remote_timeout = i; |
| } |
| break; |
| |
| case '?': |
| fprintf_unfiltered (gdb_stderr, |
| _("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) |
| { |
| use_windows = 0; |
| } |
| |
| if (batch_flag) |
| quiet = 1; |
| } |
| |
| /* Initialize all files. Give the interpreter a chance to take |
| control of the console via the deprecated_init_ui_hook (). */ |
| gdb_init (argv[0]); |
| |
| /* Now that gdb_init has created the initial inferior, we're in |
| position to set args for that inferior. */ |
| if (set_args) |
| { |
| /* The remaining options are the command-line options for the |
| inferior. The first one is the sym/exec file, and the rest |
| are arguments. */ |
| if (optind >= argc) |
| { |
| fprintf_unfiltered (gdb_stderr, |
| _("%s: `--args' specified but " |
| "no program specified\n"), |
| argv[0]); |
| exit (1); |
| } |
| symarg = argv[optind]; |
| execarg = argv[optind]; |
| ++optind; |
| set_inferior_args_vector (argc - optind, &argv[optind]); |
| } |
| else |
| { |
| /* OK, that's all the options. */ |
| |
| /* The first argument, if specified, is the name of the |
| executable. */ |
| if (optind < argc) |
| { |
| symarg = argv[optind]; |
| execarg = argv[optind]; |
| optind++; |
| } |
| |
| /* If the user hasn't already specified a PID or the name of a |
| core file, then a second optional argument is allowed. If |
| present, this argument should be interpreted as either a |
| PID or a core file, whichever works. */ |
| if (pidarg == NULL && corearg == NULL && optind < argc) |
| { |
| pid_or_core_arg = argv[optind]; |
| optind++; |
| } |
| |
| /* 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"), |
| argv[optind], |
| (optind == argc - 1) ? "" : " ..."); |
| } |
| |
| /* 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); |
| |
| /* Do these (and anything which might call wrap_here or *_filtered) |
| after initialize_all_files() but before the interpreter has been |
| installed. Otherwize the help/version messages will be eaten by |
| the interpreter's output handler. */ |
| |
| if (print_version) |
| { |
| print_gdb_version (gdb_stdout); |
| wrap_here (""); |
| printf_filtered ("\n"); |
| exit (0); |
| } |
| |
| if (print_help) |
| { |
| print_gdb_help (gdb_stdout); |
| fputs_unfiltered ("\n", gdb_stdout); |
| 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 |
| it isn't encapsulated in MI output. */ |
| if (!quiet && strcmp (interpreter_p, INTERP_MI1) == 0) |
| { |
| /* Print all the junk at the top, with trailing "..." if we are |
| about to read a symbol file (possibly slowly). */ |
| print_gdb_version (gdb_stdout); |
| if (symarg) |
| printf_filtered (".."); |
| wrap_here (""); |
| printf_filtered ("\n"); |
| gdb_flush (gdb_stdout); /* Force to screen during slow |
| operations. */ |
| } |
| |
| /* Install the default UI. All the interpreters should have had a |
| look at things by now. Initialize the default interpreter. */ |
| |
| { |
| /* Find it. */ |
| struct interp *interp = interp_lookup (interpreter_p); |
| |
| if (interp == NULL) |
| error (_("Interpreter `%s' unrecognized"), interpreter_p); |
| /* Install it. */ |
| if (!interp_set (interp, 1)) |
| { |
| fprintf_unfiltered (gdb_stderr, |
| "Interpreter `%s' failed to initialize.\n", |
| interpreter_p); |
| exit (1); |
| } |
| } |
| |
| /* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets |
| GDB retain the old MI1 interpreter startup behavior. Output the |
| copyright message after the interpreter is installed when it is |
| any sane interpreter. */ |
| if (!quiet && !current_interp_named_p (INTERP_MI1)) |
| { |
| /* Print all the junk at the top, with trailing "..." if we are |
| about to read a symbol file (possibly slowly). */ |
| print_gdb_version (gdb_stdout); |
| if (symarg) |
| printf_filtered (".."); |
| wrap_here (""); |
| printf_filtered ("\n"); |
| gdb_flush (gdb_stdout); /* Force to screen during slow |
| operations. */ |
| } |
| |
| /* Set off error and warning messages with a blank line. */ |
| error_pre_print = "\n"; |
| quit_pre_print = error_pre_print; |
| warning_pre_print = _("\nwarning: "); |
| |
| /* Read and execute the system-wide gdbinit file, if it exists. |
| This is done *before* all the command line arguments are |
| processed; it sets global parameters, which are independent of |
| what file you are debugging or what directory you are in. */ |
| if (system_gdbinit && !inhibit_gdbinit) |
| catch_command_errors (source_script, system_gdbinit, 0, RETURN_MASK_ALL); |
| |
| /* Read and execute $HOME/.gdbinit file, if it exists. This is done |
| *before* all the command line arguments are processed; it sets |
| global parameters, which are independent of what file you are |
| debugging or what directory you are in. */ |
| |
| if (home_gdbinit && !inhibit_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) |
| { |
| catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL); |
| } |
| |
| for (i = 0; i < ndir; i++) |
| catch_command_errors (directory_switch, dirarg[i], 0, RETURN_MASK_ALL); |
| xfree (dirarg); |
| |
| /* 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 = global_auto_load; |
| global_auto_load = 0; |
| |
| if (execarg != NULL |
| && symarg != NULL |
| && strcmp (execarg, symarg) == 0) |
| { |
| /* 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); |
| } |
| else |
| { |
| if (execarg != NULL) |
| 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); |
| } |
| |
| if (corearg && pidarg) |
| 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, |
| !batch_flag, RETURN_MASK_ALL); |
| else if (pidarg != NULL) |
| catch_command_errors (attach_command, pidarg, |
| !batch_flag, RETURN_MASK_ALL); |
| else if (pid_or_core_arg) |
| { |
| /* The user specified 'gdb program pid' or gdb program core'. |
| If pid_or_core_arg's first character is a digit, try attach |
| first and then corefile. Otherwise try just corefile. */ |
| |
| if (isdigit (pid_or_core_arg[0])) |
| { |
| if (catch_command_errors (attach_command, pid_or_core_arg, |
| !batch_flag, RETURN_MASK_ALL) == 0) |
| catch_command_errors (core_file_command, pid_or_core_arg, |
| !batch_flag, RETURN_MASK_ALL); |
| } |
| else /* Can't be a pid, better be a corefile. */ |
| catch_command_errors (core_file_command, pid_or_core_arg, |
| !batch_flag, RETURN_MASK_ALL); |
| } |
| |
| if (ttyarg != NULL) |
| set_inferior_io_terminal (ttyarg); |
| |
| /* Error messages should no longer be distinguished with extra output. */ |
| error_pre_print = NULL; |
| quit_pre_print = NULL; |
| warning_pre_print = _("warning: "); |
| |
| /* 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) |
| { |
| 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. */ |
| global_auto_load = save_auto_load; |
| ALL_OBJFILES (objfile) |
| load_auto_scripts_for_objfile (objfile); |
| |
| /* Process '-x' and '-ex' options. */ |
| for (i = 0; VEC_iterate (cmdarg_s, cmdarg_vec, i, cmdarg_p); i++) |
| switch (cmdarg_p->type) |
| { |
| case CMDARG_FILE: |
| catch_command_errors (source_script, cmdarg_p->string, |
| !batch_flag, RETURN_MASK_ALL); |
| break; |
| case CMDARG_COMMAND: |
| catch_command_errors (execute_command, cmdarg_p->string, |
| !batch_flag, RETURN_MASK_ALL); |
| break; |
| } |
| |
| /* Read in the old history after all the command files have been |
| read. */ |
| init_history (); |
| |
| if (batch_flag) |
| { |
| /* We have hit the end of the batch file. */ |
| quit_force (NULL, 0); |
| } |
| |
| /* Show time and/or space usage. */ |
| do_cleanups (pre_stat_chain); |
| |
| /* NOTE: cagney/1999-11-07: There is probably no reason for not |
| moving this loop and the code found in captured_command_loop() |
| into the command_loop() proper. The main thing holding back that |
| change - SET_TOP_LEVEL() - has been eliminated. */ |
| while (1) |
| { |
| catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL); |
| } |
| /* No exit -- exit is through quit_command. */ |
| } |
| |
| int |
| gdb_main (struct captured_main_args *args) |
| { |
| use_windows = args->use_windows; |
| catch_errors (captured_main, args, "", RETURN_MASK_ALL); |
| /* The only way to end up here is by an error (normal exit is |
| handled by quit_force()), hence always return an error status. */ |
| return 1; |
| } |
| |
| |
| /* Don't use *_filtered for printing help. We don't want to prompt |
| for continue no matter how small the screen or how much we're going |
| to print. */ |
| |
| static void |
| print_gdb_help (struct ui_file *stream) |
| { |
| char *system_gdbinit; |
| char *home_gdbinit; |
| char *local_gdbinit; |
| |
| get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit); |
| |
| fputs_unfiltered (_("\ |
| This is the GNU debugger. Usage:\n\n\ |
| gdb [options] [executable-file [core-file or process-id]]\n\ |
| gdb [options] --args executable-file [inferior-arguments ...]\n\n\ |
| Options:\n\n\ |
| "), stream); |
| fputs_unfiltered (_("\ |
| --args Arguments after executable-file are passed to inferior\n\ |
| "), stream); |
| fputs_unfiltered (_("\ |
| -b BAUDRATE Set serial port baud rate used for remote debugging.\n\ |
| --batch Exit after processing options.\n\ |
| --batch-silent As for --batch, but suppress all gdb stdout output.\n\ |
| --return-child-result\n\ |
| GDB exit code will be the child's exit code.\n\ |
| --cd=DIR Change current directory to DIR.\n\ |
| --command=FILE, -x Execute GDB commands from FILE.\n\ |
| --eval-command=COMMAND, -ex\n\ |
| 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\ |
| "), stream); |
| fputs_unfiltered (_("\ |
| --interpreter=INTERP\n\ |
| Select a specific interpreter / user interface\n\ |
| "), stream); |
| 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); |
| fputs_unfiltered (gdbinit, stream); |
| fputs_unfiltered (_(" file.\n\ |
| --quiet Do not print version number on startup.\n\ |
| --readnow Fully read symbol files on first access.\n\ |
| "), stream); |
| fputs_unfiltered (_("\ |
| --se=FILE Use FILE as symbol file and executable file.\n\ |
| --symbols=SYMFILE Read symbols from SYMFILE.\n\ |
| --tty=TTY Use TTY for input/output by the program being debugged.\n\ |
| "), stream); |
| #if defined(TUI) |
| fputs_unfiltered (_("\ |
| --tui Use a terminal user interface.\n\ |
| "), stream); |
| #endif |
| fputs_unfiltered (_("\ |
| --use-deprecated-index-sections\n\ |
| Do not reject deprecated .gdb_index sections.\n\ |
| "), stream); |
| fputs_unfiltered (_("\ |
| --version Print version information and then exit.\n\ |
| -w Use a window interface.\n\ |
| --write Set writing into executable and core files.\n\ |
| --xdb XDB compatibility mode.\n\ |
| "), stream); |
| fputs_unfiltered (_("\n\ |
| At startup, GDB reads the following init files and executes their commands:\n\ |
| "), stream); |
| if (system_gdbinit) |
| fprintf_unfiltered (stream, _("\ |
| * system-wide init file: %s\n\ |
| "), system_gdbinit); |
| if (home_gdbinit) |
| fprintf_unfiltered (stream, _("\ |
| * user-specific init file: %s\n\ |
| "), home_gdbinit); |
| if (local_gdbinit) |
| fprintf_unfiltered (stream, _("\ |
| * 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\ |
| GDB manual (available as on-line info or a printed manual).\n\ |
| "), stream); |
| if (REPORT_BUGS_TO[0] && stream == gdb_stdout) |
| fprintf_unfiltered (stream, _("\ |
| Report bugs to \"%s\".\n\ |
| "), REPORT_BUGS_TO); |
| } |
