/* Top level stuff for GDB, the GNU debugger.
- Copyright (C) 1986-2013 Free Software Foundation, Inc.
+ Copyright (C) 1986-2017 Free Software Foundation, Inc.
This file is part of GDB.
#include "inferior.h"
#include "symfile.h"
#include "gdbcore.h"
-
-#include "exceptions.h"
#include "getopt.h"
#include <sys/types.h>
-#include "gdb_stat.h"
+#include <sys/stat.h>
#include <ctype.h>
-
-#include "gdb_string.h"
#include "event-loop.h"
#include "ui-out.h"
#include "main.h"
#include "source.h"
#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"
+#include <signal.h>
+#include "event-top.h"
+#include "infrun.h"
+#include "signals-state-save-restore.h"
+#include <vector>
/* 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;
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;
/* GDB as it has been invoked from the command line (i.e. argv[0]). */
static char *gdb_program_name;
+/* Return read only pointer to GDB_PROGRAM_NAME. */
+const char *
+get_gdb_program_name (void)
+{
+ return gdb_program_name;
+}
+
static void print_gdb_help (struct ui_file *);
+/* Set the data-directory parameter to NEW_DATADIR.
+ If NEW_DATADIR is not a directory then a warning is printed.
+ We don't signal an error for backward compatibility. */
+
+void
+set_gdb_data_directory (const char *new_datadir)
+{
+ struct stat st;
+
+ if (stat (new_datadir, &st) < 0)
+ {
+ int save_errno = errno;
+
+ fprintf_unfiltered (gdb_stderr, "Warning: ");
+ print_sys_errmsg (new_datadir, save_errno);
+ }
+ else if (!S_ISDIR (st.st_mode))
+ warning (_("%s is not a directory."), new_datadir);
+
+ xfree (gdb_datadir);
+ gdb_datadir = gdb_realpath (new_datadir);
+
+ /* gdb_realpath won't return an absolute path if the path doesn't exist,
+ but we still want to record an absolute path here. If the user entered
+ "../foo" and "../foo" doesn't exist then we'll record $(pwd)/../foo which
+ isn't canonical, but that's ok. */
+ if (!IS_ABSOLUTE_PATH (gdb_datadir))
+ {
+ char *abs_datadir = gdb_abspath (gdb_datadir);
+
+ xfree (gdb_datadir);
+ gdb_datadir = abs_datadir;
+ }
+}
+
/* 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
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)
+get_init_files (const char **system_gdbinit,
+ const char **home_gdbinit,
+ const char **local_gdbinit)
{
- static char *sysgdbinit = NULL;
+ static const char *sysgdbinit = NULL;
static char *homeinit = NULL;
- static char *localinit = NULL;
+ static const char *localinit = NULL;
static int initialized = 0;
if (!initialized)
for (p = tmp_sys_gdbinit; IS_DIR_SEPARATOR (*p); ++p)
continue;
relocated_sysgdbinit = concat (gdb_datadir, SLASH_STRING, p,
- NULL);
+ (char *) NULL);
xfree (tmp_sys_gdbinit);
}
else
*local_gdbinit = localinit;
}
+/* Try to set up an alternate signal stack for SIGSEGV handlers.
+ This allows us to handle SIGSEGV signals generated when the
+ normal process stack is exhausted. If this stack is not set
+ up (sigaltstack is unavailable or fails) and a SIGSEGV is
+ generated when the normal stack is exhausted then the program
+ will behave as though no SIGSEGV handler was installed. */
+
+static void
+setup_alternate_signal_stack (void)
+{
+#ifdef HAVE_SIGALTSTACK
+ stack_t ss;
+
+ /* FreeBSD versions older than 11.0 use char * for ss_sp instead of
+ void *. This cast works with both types. */
+ ss.ss_sp = (char *) xmalloc (SIGSTKSZ);
+ ss.ss_size = SIGSTKSZ;
+ ss.ss_flags = 0;
+
+ sigaltstack(&ss, NULL);
+#endif
+}
+
/* 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
+ struct ui *ui = current_ui;
+
+ /* Top-level execution commands can be run in the background from
here on. */
- interpreter_async = 1;
+ current_ui->async = 1;
+
+ /* Give the interpreter a chance to print a prompt, if necessary */
+ if (ui->prompt_state != PROMPT_BLOCKED)
+ interp_pre_command_loop (top_level_interpreter ());
+
+ /* Now it's time to start the event loop. */
+ start_event_loop ();
- 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
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);
+ quit_command (NULL, ui->instream == ui->stdin_stream);
return 1;
}
-/* Arguments of --command option and its counterpart. */
-typedef struct cmdarg {
- /* Type of this option. */
- enum {
- /* Option type -x. */
- CMDARG_FILE,
+/* Handle command errors thrown from within
+ catch_command_errors/catch_command_errors_const. */
+
+static int
+handle_command_errors (struct gdb_exception e)
+{
+ if (e.reason < 0)
+ {
+ exception_print (gdb_stderr, e);
+
+ /* If any exception escaped to here, we better enable stdin.
+ Otherwise, any command that calls async_disable_stdin, and
+ then throws, will leave stdin inoperable. */
+ async_enable_stdin ();
+ return 0;
+ }
+ return 1;
+}
+
+/* Type of the command callback passed to catch_command_errors. */
+
+typedef void (catch_command_errors_ftype) (char *, int);
+
+/* Wrap calls to commands run before the event loop is started. */
+
+static int
+catch_command_errors (catch_command_errors_ftype *command,
+ char *arg, int from_tty)
+{
+ TRY
+ {
+ int was_sync = current_ui->prompt_state == PROMPT_BLOCKED;
+
+ command (arg, from_tty);
+
+ maybe_wait_sync_command_done (was_sync);
+ }
+ CATCH (e, RETURN_MASK_ALL)
+ {
+ return handle_command_errors (e);
+ }
+ END_CATCH
+
+ return 1;
+}
+
+/* Type of the command callback passed to catch_command_errors_const. */
+
+typedef void (catch_command_errors_const_ftype) (const char *, int);
+
+/* Like catch_command_errors, but works with const command and args. */
+
+static int
+catch_command_errors_const (catch_command_errors_const_ftype *command,
+ const char *arg, int from_tty)
+{
+ TRY
+ {
+ int was_sync = current_ui->prompt_state == PROMPT_BLOCKED;
+
+ command (arg, from_tty);
+
+ maybe_wait_sync_command_done (was_sync);
+ }
+ CATCH (e, RETURN_MASK_ALL)
+ {
+ return handle_command_errors (e);
+ }
+ END_CATCH
+
+ return 1;
+}
+
+/* Adapter for symbol_file_add_main that translates 'from_tty' to a
+ symfile_add_flags. */
+
+static void
+symbol_file_add_main_adapter (const char *arg, int from_tty)
+{
+ symfile_add_flags add_flags = 0;
+
+ if (from_tty)
+ add_flags |= SYMFILE_VERBOSE;
- /* Option type -ex. */
- CMDARG_COMMAND,
+ symbol_file_add_main (arg, add_flags);
+}
+
+/* Type of this option. */
+enum cmdarg_kind
+{
+ /* Option type -x. */
+ CMDARG_FILE,
- /* Option type -ix. */
- CMDARG_INIT_FILE,
+ /* Option type -ex. */
+ CMDARG_COMMAND,
+
+ /* Option type -ix. */
+ CMDARG_INIT_FILE,
- /* Option type -iex. */
- CMDARG_INIT_COMMAND
- } type;
+ /* Option type -iex. */
+ CMDARG_INIT_COMMAND
+};
+
+/* Arguments of --command option and its counterpart. */
+struct cmdarg
+{
+ cmdarg (cmdarg_kind type_, char *string_)
+ : type (type_), string (string_)
+ {}
+
+ /* Type of this option. */
+ enum cmdarg_kind 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)
+static void
+captured_main_1 (struct captured_main_args *context)
{
- struct captured_main_args *context = data;
int argc = context->argc;
char **argv = context->argv;
+
static int quiet = 0;
static int set_args = 0;
static int inhibit_home_gdbinit = 0;
static int print_configuration;
/* Pointers to all arguments of --command option. */
- VEC (cmdarg_s) *cmdarg_vec = NULL;
- struct cmdarg *cmdarg_p;
+ std::vector<struct cmdarg> cmdarg_vec;
- /* Indices of all arguments of --directory option. */
- char **dirarg;
- /* Allocated size. */
- int dirsize;
- /* Number of elements used. */
- int ndir;
+ /* All arguments of --directory option. */
+ std::vector<char *> dirarg;
/* gdb init files. */
- char *system_gdbinit;
- char *home_gdbinit;
- char *local_gdbinit;
+ const char *system_gdbinit;
+ const char *home_gdbinit;
+ const char *local_gdbinit;
int i;
int save_auto_load;
struct objfile *objfile;
- struct cleanup *pre_stat_chain;
+ struct cleanup *chain;
#ifdef HAVE_SBRK
- /* Set this before calling make_command_stats_cleanup. */
+ /* Set this before constructing scoped_command_stats. */
lim_at_start = (char *) sbrk (0);
#endif
- pre_stat_chain = make_command_stats_cleanup (0);
+ scoped_command_stats stat_reporter (false);
#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
setlocale (LC_MESSAGES, "");
#if defined (HAVE_SETLOCALE)
setlocale (LC_CTYPE, "");
#endif
+#ifdef ENABLE_NLS
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
+#endif
bfd_init ();
notice_open_fds ();
+ save_original_signals_state ();
+
+ saved_command_line = (char *) xstrdup ("");
+
+#ifdef __MINGW32__
+ /* Ensure stderr is unbuffered. A Cygwin pty or pipe is implemented
+ as a Windows pipe, and Windows buffers on pipes. */
+ setvbuf (stderr, NULL, _IONBF, BUFSIZ);
+#endif
+
+ main_ui = new_ui (stdin, stdout, stderr);
+ current_ui = main_ui;
- make_cleanup (VEC_cleanup (cmdarg_s), &cmdarg_vec);
- dirsize = 1;
- dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg));
- ndir = 0;
-
- 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_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]);
#endif
+ /* Prefix warning messages with the command name. */
+ warning_pre_print = xstrprintf ("%s: warning: ", gdb_program_name);
+
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));
-
+ perror_warning_with_name (_("error finding working directory"));
+
current_directory = gdb_dirbuf;
/* Set the sysroot path. */
gdb_sysroot = relocate_gdb_directory (TARGET_SYSTEM_ROOT,
TARGET_SYSTEM_ROOT_RELOCATABLE);
+ if (gdb_sysroot == NULL || *gdb_sysroot == '\0')
+ {
+ xfree (gdb_sysroot);
+ gdb_sysroot = xstrdup (TARGET_SYSROOT_PREFIX);
+ }
+
debug_file_directory = relocate_gdb_directory (DEBUGDIR,
DEBUGDIR_RELOCATABLE);
#ifdef WITH_PYTHON_PATH
{
/* For later use in helping Python find itself. */
- char *tmp = concat (WITH_PYTHON_PATH, SLASH_STRING, "lib", NULL);
+ char *tmp = concat (WITH_PYTHON_PATH, SLASH_STRING, "lib", (char *) NULL);
python_libdir = relocate_gdb_directory (tmp, PYTHON_PATH_RELOCATABLE);
xfree (tmp);
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},
{"directory", required_argument, 0, 'd'},
{"d", required_argument, 0, 'd'},
{"data-directory", required_argument, 0, 'D'},
+ {"D", required_argument, 0, 'D'},
{"cd", required_argument, 0, OPT_CD},
{"tty", required_argument, 0, 't'},
{"baud", required_argument, 0, 'b'},
xfree (interpreter_p);
interpreter_p = xstrdup (INTERP_TUI);
#else
- fprintf_unfiltered (gdb_stderr,
- _("%s: TUI mode is not supported\n"),
- argv[0]);
- exit (1);
+ error (_("%s: TUI mode is not supported"), gdb_program_name);
#endif
break;
case OPT_WINDOWS:
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;
pidarg = optarg;
break;
case 'x':
- {
- struct cmdarg cmdarg = { CMDARG_FILE, optarg };
-
- VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg);
- }
+ cmdarg_vec.emplace_back (CMDARG_FILE, optarg);
break;
case 'X':
- {
- struct cmdarg cmdarg = { CMDARG_COMMAND, optarg };
-
- VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg);
- }
+ cmdarg_vec.emplace_back (CMDARG_COMMAND, optarg);
break;
case OPT_IX:
- {
- struct cmdarg cmdarg = { CMDARG_INIT_FILE, optarg };
-
- VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg);
- }
+ cmdarg_vec.emplace_back (CMDARG_INIT_FILE, optarg);
break;
case OPT_IEX:
- {
- struct cmdarg cmdarg = { CMDARG_INIT_COMMAND, optarg };
-
- VEC_safe_push (cmdarg_s, cmdarg_vec, &cmdarg);
- }
+ cmdarg_vec.emplace_back (CMDARG_INIT_COMMAND, optarg);
break;
case 'B':
batch_flag = batch_silent = 1;
- gdb_stdout = ui_file_new();
+ gdb_stdout = new null_file ();
break;
case 'D':
- xfree (gdb_datadir);
- gdb_datadir = xstrdup (optarg);
+ if (optarg[0] == '\0')
+ error (_("%s: empty path for `--data-directory'"),
+ gdb_program_name);
+ set_gdb_data_directory (optarg);
gdb_datadir_provided = 1;
break;
#ifdef GDBTK
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);
- }
+ error (_("%s: unable to load tclcommand file \"%s\""),
+ gdb_program_name, optarg);
break;
}
case 'y':
interpreter_p = xstrdup (optarg);
break;
case 'd':
- dirarg[ndir++] = optarg;
- if (ndir >= dirsize)
- {
- dirsize *= 2;
- dirarg = (char **) xrealloc ((char *) dirarg,
- dirsize * sizeof (*dirarg));
- }
+ dirarg.push_back (optarg);
break;
case 't':
ttyarg = optarg;
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);
+ warning (_("could not set baud rate to `%s'."),
+ optarg);
else
baud_rate = i;
}
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);
+ warning (_("could not set timeout limit to `%s'."),
+ 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);
+ error (_("Use `%s --help' for a complete list of options."),
+ gdb_program_name);
}
}
- /* If --help or --version or --configuration, disable window
- interface. */
- if (print_help || print_version || print_configuration)
- {
- 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 (). */
+ /* Try to set up an alternate signal stack for SIGSEGV handlers. */
+ setup_alternate_signal_stack ();
+
+ /* Initialize all files. */
gdb_init (gdb_program_name);
/* Now that gdb_init has created the initial inferior, we're in
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);
- }
+ error (_("%s: `--args' specified but no program specified"),
+ gdb_program_name);
+
symarg = argv[optind];
execarg = argv[optind];
++optind;
/* 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);
- }
- }
+ set_top_level_interpreter (interpreter_p);
/* FIXME: cagney/2003-02-03: The big hack (part 2 of 2) that lets
GDB retain the old MI1 interpreter startup behavior. Output the
}
/* Set off error and warning messages with a blank line. */
- error_pre_print = "\n";
- quit_pre_print = error_pre_print;
+ xfree (warning_pre_print);
warning_pre_print = _("\nwarning: ");
/* Read and execute the system-wide gdbinit file, if it exists.
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);
+ catch_command_errors_const (source_script, system_gdbinit, 0);
/* Read and execute $HOME/.gdbinit file, if it exists. This is done
*before* all the command line arguments are processed; it sets
debugging or what directory you are in. */
if (home_gdbinit && !inhibit_gdbinit && !inhibit_home_gdbinit)
- catch_command_errors (source_script, home_gdbinit, 0, RETURN_MASK_ALL);
+ catch_command_errors_const (source_script, home_gdbinit, 0);
/* Process '-ix' and '-iex' options early. */
- for (i = 0; VEC_iterate (cmdarg_s, cmdarg_vec, i, cmdarg_p); i++)
- switch (cmdarg_p->type)
+ for (i = 0; i < cmdarg_vec.size (); i++)
{
- 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;
+ const struct cmdarg &cmdarg_p = cmdarg_vec[i];
+
+ switch (cmdarg_p.type)
+ {
+ case CMDARG_INIT_FILE:
+ catch_command_errors_const (source_script, cmdarg_p.string,
+ !batch_flag);
+ break;
+ case CMDARG_INIT_COMMAND:
+ catch_command_errors (execute_command, cmdarg_p.string,
+ !batch_flag);
+ break;
+ }
}
/* Now perform all the actions indicated by the arguments. */
if (cdarg != NULL)
{
- catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL);
+ catch_command_errors (cd_command, cdarg, 0);
}
- for (i = 0; i < ndir; i++)
- catch_command_errors (directory_switch, dirarg[i], 0, RETURN_MASK_ALL);
- xfree (dirarg);
+ for (i = 0; i < dirarg.size (); i++)
+ catch_command_errors (directory_switch, dirarg[i], 0);
/* Skip auto-loading section-specified scripts until we've sourced
local_gdbinit (which is often used to augment the source search
/* 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_const (exec_file_attach, execarg,
+ !batch_flag))
+ catch_command_errors_const (symbol_file_add_main_adapter, symarg,
+ !batch_flag);
}
else
{
if (execarg != NULL)
- catch_command_errors (exec_file_attach, execarg,
- !batch_flag, RETURN_MASK_ALL);
+ catch_command_errors_const (exec_file_attach, execarg,
+ !batch_flag);
if (symarg != NULL)
- catch_command_errors (symbol_file_add_main, symarg,
- !batch_flag, RETURN_MASK_ALL);
+ catch_command_errors_const (symbol_file_add_main_adapter, symarg,
+ !batch_flag);
}
if (corearg && pidarg)
"a core file at the same time."));
if (corearg != NULL)
- catch_command_errors (core_file_command, corearg,
- !batch_flag, RETURN_MASK_ALL);
+ catch_command_errors (core_file_command, corearg, !batch_flag);
else if (pidarg != NULL)
- catch_command_errors (attach_command, pidarg,
- !batch_flag, RETURN_MASK_ALL);
+ catch_command_errors (attach_command, pidarg, !batch_flag);
else if (pid_or_core_arg)
{
/* The user specified 'gdb program pid' or gdb program core'.
if (isdigit (pid_or_core_arg[0]))
{
if (catch_command_errors (attach_command, pid_or_core_arg,
- !batch_flag, RETURN_MASK_ALL) == 0)
+ !batch_flag) == 0)
catch_command_errors (core_file_command, pid_or_core_arg,
- !batch_flag, RETURN_MASK_ALL);
+ !batch_flag);
}
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);
+ !batch_flag);
}
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
{
auto_load_local_gdbinit_loaded = 1;
- catch_command_errors (source_script, local_gdbinit, 0,
- RETURN_MASK_ALL);
+ catch_command_errors_const (source_script, local_gdbinit, 0);
}
}
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)
+ for (i = 0; i < cmdarg_vec.size (); i++)
{
- 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;
+ const struct cmdarg &cmdarg_p = cmdarg_vec[i];
+
+ switch (cmdarg_p.type)
+ {
+ case CMDARG_FILE:
+ catch_command_errors_const (source_script, cmdarg_p.string,
+ !batch_flag);
+ break;
+ case CMDARG_COMMAND:
+ catch_command_errors (execute_command, cmdarg_p.string,
+ !batch_flag);
+ break;
+ }
}
/* Read in the old history after all the command files have been
/* We have hit the end of the batch file. */
quit_force (NULL, 0);
}
+}
+
+static void
+captured_main (void *data)
+{
+ struct captured_main_args *context = (struct captured_main_args *) data;
- /* Show time and/or space usage. */
- do_cleanups (pre_stat_chain);
+ captured_main_1 (context);
/* NOTE: cagney/1999-11-07: There is probably no reason for not
moving this loop and the code found in captured_command_loop()
int
gdb_main (struct captured_main_args *args)
{
- use_windows = args->use_windows;
- catch_errors (captured_main, args, "", RETURN_MASK_ALL);
+ TRY
+ {
+ captured_main (args);
+ }
+ CATCH (ex, RETURN_MASK_ALL)
+ {
+ exception_print (gdb_stderr, ex);
+ }
+ END_CATCH
+
/* 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;
static void
print_gdb_help (struct ui_file *stream)
{
- char *system_gdbinit;
- char *home_gdbinit;
- char *local_gdbinit;
+ const char *system_gdbinit;
+ const char *home_gdbinit;
+ const char *local_gdbinit;
get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit);
+ /* Note: The options in the list below are only approximately sorted
+ in the alphabetical order, so as to group closely related options
+ together. */
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 (_("\
+Selection of debuggee and its files:\n\n\
--args Arguments after executable-file are passed to inferior\n\
+ --core=COREFILE Analyze the core dump COREFILE.\n\
+ --exec=EXECFILE Use EXECFILE as the executable.\n\
+ --pid=PID Attach to running process PID.\n\
+ --directory=DIR Search for source files in DIR.\n\
+ --se=FILE Use FILE as symbol file and executable file.\n\
+ --symbols=SYMFILE Read symbols from SYMFILE.\n\
+ --readnow Fully read symbol files on first access.\n\
+ --write Set writing into executable and core files.\n\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\
+Initial commands and command files:\n\n\
--command=FILE, -x Execute GDB commands from FILE.\n\
+ --init-command=FILE, -ix\n\
+ Like -x but execute commands before loading inferior.\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\
+ --init-eval-command=COMMAND, -iex\n\
+ Like -ex but before loading inferior.\n\
+ --nh Do not read ~/.gdbinit.\n\
+ --nx Do not read any .gdbinit files in any directory.\n\n\
"), stream);
fputs_unfiltered (_("\
- --dbx DBX compatibility mode.\n\
- --directory=DIR Search for source files in DIR.\n\
- --exec=EXECFILE Use EXECFILE as the executable.\n\
+Output and user interface control:\n\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 any "), stream);
- fputs_unfiltered (gdbinit, stream);
- fputs_unfiltered (_(" files.\n\
- --nh Do not read "), stream);
- fputs_unfiltered (gdbinit, stream);
- 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);
- 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\
+ -w Use the GUI interface.\n\
+ --nw Do not use the GUI interface.\n\
"), stream);
#if defined(TUI)
fputs_unfiltered (_("\
"), stream);
#endif
fputs_unfiltered (_("\
- --version Print version information and then exit.\n\
+ --dbx DBX compatibility mode.\n\
+ -q, --quiet, --silent\n\
+ Do not print version number on startup.\n\n\
+"), stream);
+ fputs_unfiltered (_("\
+Operating modes:\n\n\
+ --batch Exit after processing options.\n\
+ --batch-silent Like --batch, but suppress all gdb stdout output.\n\
+ --return-child-result\n\
+ GDB exit code will be the child's exit code.\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\
+ --help Print this message and then exit.\n\
+ --version Print version information and then exit.\n\n\
+Remote debugging options:\n\n\
+ -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
+ -l TIMEOUT Set timeout in seconds for remote debugging.\n\n\
+Other options:\n\n\
+ --cd=DIR Change current directory to DIR.\n\
+ --data-directory=DIR, -D\n\
+ Set GDB's data-directory to DIR.\n\
"), stream);
fputs_unfiltered (_("\n\
At startup, GDB reads the following init files and executes their commands:\n\