/* Top level stuff for GDB, the GNU debugger.
- Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
- 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
- Foundation, Inc.
+ Copyright (C) 1986-2020 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 2 of the License, or
+ 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,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "top.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 <sys/stat.h>
#include <ctype.h>
-
-#include "gdb_string.h"
#include "event-loop.h"
#include "ui-out.h"
#include "interps.h"
#include "main.h"
-
-/* If nonzero, display time usage both at startup and for each command. */
-
-int display_time;
-
-/* If nonzero, display space usage both at startup and for each command. */
-
-int display_space;
+#include "source.h"
+#include "cli/cli-cmds.h"
+#include "objfiles.h"
+#include "auto-load.h"
+#include "maint.h"
+
+#include "filenames.h"
+#include "gdbsupport/filestuff.h"
+#include <signal.h>
+#include "event-top.h"
+#include "infrun.h"
+#include "gdbsupport/signals-state-save-restore.h"
+#include <algorithm>
+#include <vector>
+#include "gdbsupport/pathstuff.h"
+#include "cli/cli-style.h"
+#ifdef GDBTK
+#include "gdbtk/generic/gdbtk.h"
+#endif
+#include "gdbsupport/alt-stack.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. */
+ 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 */
+/* Whether dbx commands will be handled. */
int dbx_commands = 0;
/* System root path, used to find libraries etc. */
char *gdb_sysroot = 0;
-struct ui_file *gdb_stdout;
-struct ui_file *gdb_stderr;
-struct ui_file *gdb_stdlog;
-struct ui_file *gdb_stdin;
-/* target IO streams */
+/* GDB datadir, used to store data files. */
+std::string gdb_datadir;
+
+/* 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. */
+std::string python_libdir;
+
+/* Target IO streams. */
struct ui_file *gdb_stdtargin;
struct ui_file *gdb_stdtarg;
struct ui_file *gdb_stdtargerr;
-/* Whether to enable writing into executable and core files */
-extern int write_files;
+/* 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;
+
+/* 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 *);
-/* These two are used to set the external editor commands when gdb is farming
- out files to be edited by another program. */
+/* 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. */
-extern char *external_editor_command;
+void
+set_gdb_data_directory (const char *new_datadir)
+{
+ struct stat st;
-/* Call command_loop. If it happens to return, pass that through as a
- non-zero return status. */
+ if (stat (new_datadir, &st) < 0)
+ {
+ int save_errno = errno;
-static int
-captured_command_loop (void *data)
+ fprintf_unfiltered (gdb_stderr, "Warning: ");
+ print_sys_errmsg (new_datadir, save_errno);
+ }
+ else if (!S_ISDIR (st.st_mode))
+ warning (_("%ps is not a directory."),
+ styled_string (file_name_style.style (), new_datadir));
+
+ gdb_datadir = gdb_realpath (new_datadir).get ();
+
+ /* 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.c_str ()))
+ {
+ gdb::unique_xmalloc_ptr<char> abs_datadir
+ = gdb_abspath (gdb_datadir.c_str ());
+
+ gdb_datadir = abs_datadir.get ();
+ }
+}
+
+/* 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. RELOCATABLE is true if the value is relocatable,
+ false otherwise. This may return an empty string under the same
+ conditions as make_relative_prefix returning NULL. */
+
+static std::string
+relocate_path (const char *progname, const char *initial, bool relocatable)
+{
+ if (relocatable)
+ {
+ gdb::unique_xmalloc_ptr<char> str (make_relative_prefix (progname,
+ BINDIR,
+ initial));
+ if (str != nullptr)
+ return str.get ();
+ return std::string ();
+ }
+ return 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. */
+
+std::string
+relocate_gdb_directory (const char *initial, bool relocatable)
+{
+ std::string dir = relocate_path (gdb_program_name, initial, relocatable);
+ if (!dir.empty ())
+ {
+ struct stat s;
+
+ if (stat (dir.c_str (), &s) != 0 || !S_ISDIR (s.st_mode))
+ {
+ dir.clear ();
+ }
+ }
+ if (dir.empty ())
+ dir = initial;
+
+ /* Canonicalize the directory. */
+ if (!dir.empty ())
+ {
+ gdb::unique_xmalloc_ptr<char> canon_sysroot (lrealpath (dir.c_str ()));
+
+ if (canon_sysroot)
+ dir = canon_sysroot.get ();
+ }
+
+ return dir;
+}
+
+/* Given a gdbinit path in FILE, adjusts it according to the gdb_datadir
+ parameter if it is in the data dir, or passes it through relocate_path
+ otherwise. */
+
+static std::string
+relocate_gdbinit_path_maybe_in_datadir (const std::string &file,
+ bool relocatable)
+{
+ size_t datadir_len = strlen (GDB_DATADIR);
+
+ std::string relocated_path;
+
+ /* If SYSTEM_GDBINIT lives in data-directory, and data-directory
+ has been provided, search for SYSTEM_GDBINIT there. */
+ if (gdb_datadir_provided
+ && datadir_len < file.length ()
+ && filename_ncmp (file.c_str (), GDB_DATADIR, datadir_len) == 0
+ && IS_DIR_SEPARATOR (file[datadir_len]))
+ {
+ /* Append the part of SYSTEM_GDBINIT that follows GDB_DATADIR
+ to gdb_datadir. */
+
+ size_t start = datadir_len;
+ for (; IS_DIR_SEPARATOR (file[start]); ++start)
+ ;
+ relocated_path = gdb_datadir + SLASH_STRING + file.substr (start);
+ }
+ else
+ {
+ relocated_path = relocate_path (gdb_program_name, file.c_str (),
+ relocatable);
+ }
+ return relocated_path;
+}
+
+/* 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 the empty string. */
+static void
+get_init_files (std::vector<std::string> *system_gdbinit,
+ std::string *home_gdbinit,
+ std::string *local_gdbinit)
+{
+ static std::vector<std::string> sysgdbinit;
+ static std::string homeinit;
+ static std::string localinit;
+ static int initialized = 0;
+
+ if (!initialized)
+ {
+ struct stat homebuf, cwdbuf, s;
+
+ if (SYSTEM_GDBINIT[0])
+ {
+ std::string relocated_sysgdbinit
+ = relocate_gdbinit_path_maybe_in_datadir
+ (SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE);
+ if (!relocated_sysgdbinit.empty ()
+ && stat (relocated_sysgdbinit.c_str (), &s) == 0)
+ sysgdbinit.push_back (relocated_sysgdbinit);
+ }
+ if (SYSTEM_GDBINIT_DIR[0])
+ {
+ std::string relocated_gdbinit_dir
+ = relocate_gdbinit_path_maybe_in_datadir
+ (SYSTEM_GDBINIT_DIR, SYSTEM_GDBINIT_DIR_RELOCATABLE);
+ if (!relocated_gdbinit_dir.empty ()) {
+ gdb_dir_up dir (opendir (relocated_gdbinit_dir.c_str ()));
+ if (dir != nullptr)
+ {
+ std::vector<std::string> files;
+ for (;;)
+ {
+ struct dirent *ent = readdir (dir.get ());
+ if (ent == nullptr)
+ break;
+ std::string name (ent->d_name);
+ if (name == "." || name == "..")
+ continue;
+ /* ent->d_type is not available on all systems (e.g. mingw,
+ Solaris), so we have to call stat(). */
+ std::string filename
+ = relocated_gdbinit_dir + SLASH_STRING + name;
+ if (stat (filename.c_str (), &s) != 0
+ || !S_ISREG (s.st_mode))
+ continue;
+ const struct extension_language_defn *extlang
+ = get_ext_lang_of_file (filename.c_str ());
+ /* We effectively don't support "set script-extension
+ off/soft", because we are loading system init files here,
+ so it does not really make sense to depend on a
+ setting. */
+ if (extlang != nullptr && ext_lang_present_p (extlang))
+ files.push_back (std::move (filename));
+ }
+ std::sort (files.begin (), files.end ());
+ sysgdbinit.insert (sysgdbinit.end (),
+ files.begin (), files.end ());
+ }
+ }
+ }
+
+ const char *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 = std::string (homedir) + SLASH_STRING + GDBINIT;
+ if (stat (homeinit.c_str (), &homebuf) != 0)
+ {
+ homeinit = "";
+ }
+ }
+
+ if (stat (GDBINIT, &cwdbuf) == 0)
+ {
+ if (homeinit.empty ()
+ || memcmp ((char *) &homebuf, (char *) &cwdbuf,
+ sizeof (struct stat)))
+ localinit = GDBINIT;
+ }
+
+ initialized = 1;
+ }
+
+ *system_gdbinit = sysgdbinit;
+ *home_gdbinit = homeinit;
+ *local_gdbinit = localinit;
+}
+
+/* Call command_loop. */
+
+/* Prevent inlining this function for the benefit of GDB's selftests
+ in the testsuite. Those tests want to run GDB under GDB and stop
+ here. */
+static void captured_command_loop () __attribute__((noinline));
+
+static void
+captured_command_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
- 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);
+ struct ui *ui = current_ui;
+
+ /* Top-level execution commands can be run in the background from
+ here on. */
+ 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 ();
+
/* 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);
+ error) we try to quit. If the quit is aborted, our caller
+ catches the signal and restarts the command loop. */
+ quit_command (NULL, ui->instream == ui->stdin_stream);
+}
+
+/* Handle command errors thrown from within catch_command_errors. */
+
+static int
+handle_command_errors (const 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 the const
+ catch_command_errors. */
+
+typedef void (catch_command_errors_const_ftype) (const char *, int);
+
+/* Wrap calls to commands run before the event loop is started. */
+
static int
-captured_main (void *data)
+catch_command_errors (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 (const gdb_exception &e)
+ {
+ return handle_command_errors (e);
+ }
+
+ 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;
+
+ symbol_file_add_main (arg, add_flags);
+}
+
+/* Perform validation of the '--readnow' and '--readnever' flags. */
+
+static void
+validate_readnow_readnever ()
+{
+ if (readnever_symbol_files && readnow_symbol_files)
+ {
+ error (_("%s: '--readnow' and '--readnever' cannot be "
+ "specified simultaneously"),
+ gdb_program_name);
+ }
+}
+
+/* Type of this option. */
+enum cmdarg_kind
+{
+ /* Option type -x. */
+ CMDARG_FILE,
+
+ /* Option type -ex. */
+ CMDARG_COMMAND,
+
+ /* Option type -ix. */
+ CMDARG_INIT_FILE,
+
+ /* 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;
+};
+
+static void
+captured_main_1 (struct captured_main_args *context)
{
- struct captured_main_args *context = data;
int argc = context->argc;
char **argv = context->argv;
- int count;
+
static int quiet = 0;
- static int batch = 0;
static int set_args = 0;
+ static int inhibit_home_gdbinit = 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. */
+ /* These are static so that we can take their address in an
+ initializer. */
static int print_help;
static int print_version;
+ static int print_configuration;
/* Pointers to all arguments of --command option. */
- char **cmdarg;
- /* Allocated size of cmdarg. */
- int cmdsize;
- /* Number of elements of cmdarg used. */
- int ncmd;
-
- /* Indices of all arguments of --directory option. */
- char **dirarg;
- /* Allocated size. */
- int dirsize;
- /* Number of elements used. */
- int ndir;
-
- struct stat homebuf, cwdbuf;
- char *homedir, *homeinit;
+ std::vector<struct cmdarg> cmdarg_vec;
+
+ /* All arguments of --directory option. */
+ std::vector<char *> dirarg;
int i;
+ int save_auto_load;
+ int ret = 1;
+
+#ifdef HAVE_USEFUL_SBRK
+ /* Set this before constructing scoped_command_stats. */
+ lim_at_start = (char *) sbrk (0);
+#endif
- long time_at_startup = get_run_time ();
+ 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);
-
-#ifdef HAVE_SBRK
- lim_at_start = (char *) sbrk (0);
#endif
-#if defined (ALIGN_STACK_ON_STARTUP)
- i = (int) &count & 0x3;
- if (i != 0)
- alloca (4 - i);
+ notice_open_fds ();
+
+#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
- cmdsize = 1;
- cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg));
- ncmd = 0;
- 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 */
- instream = stdin;
-
- getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
- current_directory = gdb_dirbuf;
-
- 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);
+ /* Note: `error' cannot be called before this point, because the
+ caller will crash when trying to print the exception. */
+ main_ui = new ui (stdin, stdout, stderr);
+ current_ui = main_ui;
+
gdb_stdtargerr = gdb_stderr; /* for moment */
gdb_stdtargin = gdb_stdin; /* for moment */
+ if (bfd_init () != BFD_INIT_MAGIC)
+ error (_("fatal error: libbfd ABI mismatch"));
+
+#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
+
+ /* Prefix warning messages with the command name. */
+ gdb::unique_xmalloc_ptr<char> tmp_warn_preprint
+ (xstrprintf ("%s: warning: ", gdb_program_name));
+ warning_pre_print = tmp_warn_preprint.get ();
+
+ current_directory = getcwd (NULL, 0);
+ if (current_directory == NULL)
+ perror_warning_with_name (_("error finding working directory"));
+
/* Set the sysroot path. */
-#ifdef TARGET_SYSTEM_ROOT_RELOCATABLE
- gdb_sysroot = make_relative_prefix (argv[0], BINDIR, TARGET_SYSTEM_ROOT);
- if (gdb_sysroot)
+ gdb_sysroot
+ = xstrdup (relocate_gdb_directory (TARGET_SYSTEM_ROOT,
+ TARGET_SYSTEM_ROOT_RELOCATABLE).c_str ());
+
+ if (*gdb_sysroot == '\0')
{
- struct stat s;
- int res = 0;
+ xfree (gdb_sysroot);
+ gdb_sysroot = xstrdup (TARGET_SYSROOT_PREFIX);
+ }
- if (stat (gdb_sysroot, &s) == 0)
- if (S_ISDIR (s.st_mode))
- res = 1;
+ debug_file_directory
+ = xstrdup (relocate_gdb_directory (DEBUGDIR,
+ DEBUGDIR_RELOCATABLE).c_str ());
- if (res == 0)
- {
- xfree (gdb_sysroot);
- gdb_sysroot = TARGET_SYSTEM_ROOT;
- }
- }
- else
- gdb_sysroot = TARGET_SYSTEM_ROOT;
-#else
-#if defined (TARGET_SYSTEM_ROOT)
- gdb_sysroot = TARGET_SYSTEM_ROOT;
-#else
- gdb_sysroot = "";
+ 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", (char *) 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 (gdb_program_name, BINDIR,
+ RELOC_SRCDIR));
#endif
/* There will always be an interpreter. Either the one passed into
OPT_STATISTICS,
OPT_TUI,
OPT_NOWINDOWS,
- OPT_WINDOWS
+ OPT_WINDOWS,
+ OPT_IX,
+ OPT_IEX,
+ OPT_READNOW,
+ OPT_READNEVER
};
+ /* This struct requires int* in the struct, but write_files is a bool.
+ So use this temporary int that we write back after argument parsing. */
+ int write_files_1 = 0;
static struct option long_options[] =
{
-#if defined(TUI)
{"tui", no_argument, 0, OPT_TUI},
-#endif
- {"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},
+ {"readnow", no_argument, NULL, OPT_READNOW},
+ {"readnever", no_argument, NULL, OPT_READNEVER},
+ {"r", no_argument, NULL, OPT_READNOW},
{"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", no_argument, &batch, 1},
- {"epoch", no_argument, &epoch_interface, 1},
+ {"batch-silent", no_argument, 0, 'B'},
+ {"batch", no_argument, &batch_flag, 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. */
+ /* 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'},
{"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},
+ {"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'},
{"i", required_argument, 0, 'i'},
{"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'},
{"w", no_argument, NULL, OPT_WINDOWS},
{"windows", no_argument, NULL, OPT_WINDOWS},
{"statistics", no_argument, 0, OPT_STATISTICS},
- {"write", no_argument, &write_files, 1},
+ {"write", no_argument, &write_files_1, 1},
{"args", no_argument, &set_args, 1},
- {"l", required_argument, 0, 'l'},
+ {"l", required_argument, 0, 'l'},
+ {"return-child-result", no_argument, &return_child_result, 1},
{0, no_argument, 0, 0}
};
break;
case OPT_STATISTICS:
/* Enable the display of both time and space usage. */
- display_time = 1;
- display_space = 1;
+ set_per_command_time (1);
+ set_per_command_space (1);
break;
case OPT_TUI:
/* --tui is equivalent to -i=tui. */
+#ifdef TUI
xfree (interpreter_p);
- interpreter_p = xstrdup ("tui");
+ interpreter_p = xstrdup (INTERP_TUI);
+#else
+ error (_("%s: TUI mode is not supported"), gdb_program_name);
+#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. */
- use_windows = 1;
+#ifdef GDBTK
+ /* --windows is equivalent to -i=insight. */
+ xfree (interpreter_p);
+ interpreter_p = xstrdup (INTERP_INSIGHT);
+#endif
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;
corearg = optarg;
break;
case 'p':
- /* "corearg" is shared by "--core" and "--pid" */
- corearg = optarg;
+ pidarg = optarg;
break;
case 'x':
- cmdarg[ncmd++] = optarg;
- if (ncmd >= cmdsize)
- {
- cmdsize *= 2;
- cmdarg = (char **) xrealloc ((char *) cmdarg,
- cmdsize * sizeof (*cmdarg));
- }
+ cmdarg_vec.emplace_back (CMDARG_FILE, optarg);
+ break;
+ case 'X':
+ cmdarg_vec.emplace_back (CMDARG_COMMAND, optarg);
+ break;
+ case OPT_IX:
+ cmdarg_vec.emplace_back (CMDARG_INIT_FILE, optarg);
+ break;
+ case OPT_IEX:
+ cmdarg_vec.emplace_back (CMDARG_INIT_COMMAND, optarg);
+ break;
+ case 'B':
+ batch_flag = batch_silent = 1;
+ gdb_stdout = new null_file ();
+ break;
+ case 'D':
+ 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
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);
- }
+ error (_("%s: unable to load tclcommand file \"%s\""),
+ gdb_program_name, optarg);
break;
}
case 'y':
break;
case 'w':
{
+ /* Set the external editor commands when gdb is farming out files
+ to be edited by another program. */
external_editor_command = xstrdup (optarg);
break;
}
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;
break;
case 'b':
{
- int i;
+ int rate;
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);
+ rate = strtol (optarg, &p, 0);
+ if (rate == 0 && p == optarg)
+ warning (_("could not set baud rate to `%s'."),
+ optarg);
else
- baud_rate = i;
+ baud_rate = rate;
}
break;
case 'l':
{
- int i;
+ int timeout;
char *p;
- i = strtol (optarg, &p, 0);
- if (i == 0 && p == optarg)
+ timeout = strtol (optarg, &p, 0);
+ if (timeout == 0 && p == optarg)
+ warning (_("could not set timeout limit to `%s'."),
+ optarg);
+ else
+ remote_timeout = timeout;
+ }
+ break;
- /* Don't use *_filtered or warning() (which relies on
- current_target) until after initialize_all_files(). */
+ case OPT_READNOW:
+ {
+ readnow_symbol_files = 1;
+ validate_readnow_readnever ();
+ }
+ break;
- fprintf_unfiltered
- (gdb_stderr,
- _("warning: could not set timeout limit to `%s'.\n"), optarg);
- else
- remote_timeout = i;
+ case OPT_READNEVER:
+ {
+ readnever_symbol_files = 1;
+ validate_readnow_readnever ();
}
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);
}
}
+ write_files = (write_files_1 != 0);
- /* If --help or --version, disable window interface. */
- if (print_help || print_version)
+ if (batch_flag)
{
- use_windows = 0;
- }
+ quiet = 1;
- 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 other arguments are filenames. */
- count = 0;
- for (; optind < argc; optind++)
- switch (++count)
- {
- case 1:
- symarg = argv[optind];
- execarg = argv[optind];
- break;
- case 2:
- /* The documentation says this can be a "ProcID" as well.
- We will try it as both a corefile and a pid. */
- corearg = argv[optind];
- break;
- case 3:
- fprintf_unfiltered (gdb_stderr,
- _("Excess command line arguments ignored. (%s%s)\n"),
- argv[optind], (optind == argc - 1) ? "" : " ...");
- break;
- }
+ /* Disable all output styling when running in batch mode. */
+ cli_styling = 0;
}
- if (batch)
- 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]);
+ save_original_signals_state (quiet);
+
+ /* Try to set up an alternate signal stack for SIGSEGV handlers. */
+ gdb::alternate_signal_stack signal_stack;
+
+ /* Initialize all files. */
+ 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 (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)
+ error (_("%s: `--args' specified but no program specified"),
+ gdb_program_name);
+
+ 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
+ overridden during file initialization, so get_init_files should be
+ called after gdb_init. */
+ std::vector<std::string> system_gdbinit;
+ std::string home_gdbinit;
+ std::string local_gdbinit;
+ 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
if (print_version)
{
- print_gdb_version (gdb_stdout);
+ print_gdb_version (gdb_stdout, false);
wrap_here ("");
printf_filtered ("\n");
exit (0);
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
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);
+ /* 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, true);
if (symarg)
printf_filtered ("..");
wrap_here ("");
- gdb_flush (gdb_stdout); /* Force to screen during slow operations */
+ 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))
- {
- fprintf_unfiltered (gdb_stderr,
- "Interpreter `%s' failed to initialize.\n",
- interpreter_p);
- exit (1);
- }
- }
+ look at things by now. Initialize the default interpreter. */
+ 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
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);
+ /* 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, true);
if (symarg)
printf_filtered ("..");
wrap_here ("");
- gdb_flush (gdb_stdout); /* Force to screen during slow operations */
+ printf_filtered ("\n");
+ gdb_flush (gdb_stdout); /* Force to screen during slow
+ operations. */
}
- error_pre_print = "\n\n";
- quit_pre_print = error_pre_print;
-
- /* We may get more than one warning, don't double space all of them... */
+ /* Set off error and warning messages with a blank line. */
+ tmp_warn_preprint.reset ();
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.empty () && !inhibit_gdbinit)
+ {
+ for (const std::string &file : system_gdbinit)
+ ret = catch_command_errors (source_script, file.c_str (), 0);
+ }
+
/* 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. */
- homedir = getenv ("HOME");
- if (homedir)
+
+ if (!home_gdbinit.empty () && !inhibit_gdbinit && !inhibit_home_gdbinit)
+ ret = catch_command_errors (source_script, home_gdbinit.c_str (), 0);
+
+ /* Process '-ix' and '-iex' options early. */
+ for (i = 0; i < cmdarg_vec.size (); i++)
{
- homeinit = (char *) alloca (strlen (homedir) +
- strlen (gdbinit) + 10);
- strcpy (homeinit, homedir);
- strcat (homeinit, "/");
- strcat (homeinit, gdbinit);
+ const struct cmdarg &cmdarg_p = cmdarg_vec[i];
- if (!inhibit_gdbinit)
+ switch (cmdarg_p.type)
{
- catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL);
+ case CMDARG_INIT_FILE:
+ ret = catch_command_errors (source_script, cmdarg_p.string,
+ !batch_flag);
+ break;
+ case CMDARG_INIT_COMMAND:
+ ret = catch_command_errors (execute_command, cmdarg_p.string,
+ !batch_flag);
+ break;
}
-
- /* Do stats; no need to do them elsewhere since we'll only
- need them if homedir is set. Make sure that they 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));
-
- stat (homeinit, &homebuf);
- stat (gdbinit, &cwdbuf); /* We'll only need this if
- homedir was set. */
}
/* Now perform all the actions indicated by the arguments. */
if (cdarg != NULL)
{
- catch_command_errors (cd_command, cdarg, 0, RETURN_MASK_ALL);
+ ret = catch_command_errors (cd_command, cdarg, 0);
}
- for (i = 0; i < ndir; i++)
- catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL);
- xfree (dirarg);
+ for (i = 0; i < dirarg.size (); i++)
+ ret = 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
+ path). */
+ 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, RETURN_MASK_ALL))
- catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL);
+ catch_command_errors returns non-zero on success! */
+ ret = catch_command_errors (exec_file_attach, execarg,
+ !batch_flag);
+ if (ret != 0)
+ ret = catch_command_errors (symbol_file_add_main_adapter,
+ symarg, !batch_flag);
}
else
{
if (execarg != NULL)
- catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL);
+ ret = catch_command_errors (exec_file_attach, execarg,
+ !batch_flag);
if (symarg != NULL)
- catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL);
+ ret = catch_command_errors (symbol_file_add_main_adapter,
+ symarg, !batch_flag);
}
- /* After the symbol file has been read, print a newline to get us
- beyond the copyright line... But errors should still set off
- the error message with a (single) blank line. */
- if (!quiet)
- printf_filtered ("\n");
- error_pre_print = "\n";
- quit_pre_print = error_pre_print;
- warning_pre_print = _("\nwarning: ");
+ if (corearg && pidarg)
+ error (_("Can't attach to process and specify "
+ "a core file at the same time."));
if (corearg != NULL)
{
- /* corearg may be either a corefile or a pid.
- If its first character is a digit, try attach first
- and then corefile. Otherwise try corefile first. */
+ ret = catch_command_errors (core_file_command, corearg,
+ !batch_flag);
+ }
+ else if (pidarg != NULL)
+ {
+ ret = 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 pid_or_core_arg's first character is a digit, try attach
+ first and then corefile. Otherwise try just corefile. */
- if (isdigit (corearg[0]))
+ if (isdigit (pid_or_core_arg[0]))
+ {
+ ret = catch_command_errors (attach_command, pid_or_core_arg,
+ !batch_flag);
+ if (ret == 0)
+ ret = catch_command_errors (core_file_command,
+ pid_or_core_arg,
+ !batch_flag);
+ }
+ else
{
- if (catch_command_errors (attach_command, corearg,
- !batch, RETURN_MASK_ALL) == 0)
- catch_command_errors (core_file_command, corearg,
- !batch, RETURN_MASK_ALL);
+ /* Can't be a pid, better be a corefile. */
+ ret = catch_command_errors (core_file_command,
+ pid_or_core_arg,
+ !batch_flag);
}
- else /* Can't be a pid, better be a corefile. */
- catch_command_errors (core_file_command, corearg,
- !batch, RETURN_MASK_ALL);
}
if (ttyarg != NULL)
- catch_command_errors (tty_command, ttyarg, !batch, RETURN_MASK_ALL);
+ set_inferior_io_terminal (ttyarg);
- /* Error messages should no longer be distinguished with extra output. */
- error_pre_print = NULL;
- quit_pre_print = NULL;
+ /* Error messages should no longer be distinguished with extra output. */
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 (!homedir
- || memcmp ((char *) &homebuf, (char *) &cwdbuf, sizeof (struct stat)))
- if (!inhibit_gdbinit)
- {
- catch_command_errors (source_command, gdbinit, 0, RETURN_MASK_ALL);
- }
-
- for (i = 0; i < ncmd; i++)
+ if (!local_gdbinit.empty ())
{
-#if 0
- /* NOTE: cagney/1999-11-03: SET_TOP_LEVEL() was a macro that
- expanded into a call to setjmp(). */
- if (!SET_TOP_LEVEL ()) /* NB: This is #if 0'd out */
+ auto_load_local_gdbinit_pathname
+ = gdb_realpath (local_gdbinit.c_str ()).release ();
+
+ if (!inhibit_gdbinit && auto_load_local_gdbinit
+ && file_is_auto_load_safe (local_gdbinit.c_str (),
+ _("auto-load: Loading .gdbinit "
+ "file \"%s\".\n"),
+ local_gdbinit.c_str ()))
{
- /* NOTE: I am commenting this out, because it is not clear
- where this feature is used. It is very old and
- undocumented. ezannoni: 1999-05-04 */
-#if 0
- if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0')
- read_command_file (stdin);
- else
-#endif
- source_command (cmdarg[i], !batch);
- do_cleanups (ALL_CLEANUPS);
+ auto_load_local_gdbinit_loaded = 1;
+
+ ret = catch_command_errors (source_script, local_gdbinit.c_str (), 0);
}
-#endif
- catch_command_errors (source_command, cmdarg[i], !batch, RETURN_MASK_ALL);
}
- xfree (cmdarg);
- /* Read in the old history after all the command files have been read. */
- init_history ();
+ /* 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;
+ for (objfile *objfile : current_program_space->objfiles ())
+ load_auto_scripts_for_objfile (objfile);
- if (batch)
+ /* Process '-x' and '-ex' options. */
+ for (i = 0; i < cmdarg_vec.size (); i++)
{
- if (attach_flag)
- /* Either there was a problem executing the command in the
- batch file aborted early, or the batch file forgot to do an
- explicit detach. Explicitly detach the inferior ensuring
- that there are no zombies. */
- target_detach (NULL, 0);
-
- /* We have hit the end of the batch file. */
- exit (0);
- }
-
- /* Do any host- or target-specific hacks. This is used for i960 targets
- to force the user to set a nindy target and spec its parameters. */
+ const struct cmdarg &cmdarg_p = cmdarg_vec[i];
-#ifdef BEFORE_MAIN_LOOP_HOOK
- BEFORE_MAIN_LOOP_HOOK;
-#endif
+ switch (cmdarg_p.type)
+ {
+ case CMDARG_FILE:
+ ret = catch_command_errors (source_script, cmdarg_p.string,
+ !batch_flag);
+ break;
+ case CMDARG_COMMAND:
+ ret = catch_command_errors (execute_command, cmdarg_p.string,
+ !batch_flag);
+ break;
+ }
+ }
- /* Show time and/or space usage. */
+ /* Read in the old history after all the command files have been
+ read. */
+ init_history ();
- if (display_time)
+ if (batch_flag)
{
- long init_time = get_run_time () - time_at_startup;
+ int error_status = EXIT_FAILURE;
+ int *exit_arg = ret == 0 ? &error_status : NULL;
- printf_unfiltered (_("Startup time: %ld.%06ld\n"),
- init_time / 1000000, init_time % 1000000);
+ /* We have hit the end of the batch file. */
+ quit_force (exit_arg, 0);
}
+}
- if (display_space)
- {
-#ifdef HAVE_SBRK
- extern char **environ;
- char *lim = (char *) sbrk (0);
+static void
+captured_main (void *data)
+{
+ struct captured_main_args *context = (struct captured_main_args *) data;
- printf_unfiltered (_("Startup size: data size %ld\n"),
- (long) (lim - (char *) &environ));
-#endif
- }
+ captured_main_1 (context);
-#if 0
- /* FIXME: cagney/1999-11-06: The original main loop was like: */
- while (1)
- {
- if (!SET_TOP_LEVEL ())
- {
- do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */
- /* GUIs generally have their own command loop, mainloop, or
- whatever. This is a good place to gain control because
- many error conditions will end up here via longjmp(). */
- if (deprecated_command_loop_hook)
- deprecated_command_loop_hook ();
- else
- deprecated_command_loop ();
- quit_command ((char *) 0, instream == stdin);
- }
- }
- /* NOTE: If the command_loop() returned normally, the loop would
- attempt to exit by calling the function quit_command(). That
- function would either call exit() or throw an error returning
- control to SET_TOP_LEVEL. */
- /* NOTE: The function do_cleanups() was called once each time round
- the loop. The usefulness of the call isn't clear. If an error
- was thrown, everything would have already been cleaned up. If
- command_loop() returned normally and quit_command() was called,
- either exit() or error() (again cleaning up) would be called. */
-#endif
/* 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. */
+ change - SET_TOP_LEVEL() - has been eliminated. */
while (1)
{
- catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL);
+ try
+ {
+ captured_command_loop ();
+ }
+ catch (const gdb_exception &ex)
+ {
+ exception_print (gdb_stderr, ex);
+ }
}
/* 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);
+ try
+ {
+ captured_main (args);
+ }
+ catch (const gdb_exception &ex)
+ {
+ exception_print (gdb_stderr, ex);
+ }
+
/* 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)
{
+ std::vector<std::string> system_gdbinit;
+ std::string home_gdbinit;
+ std::string 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\
-"), stream);
- fputs_unfiltered (_("\
- --[no]async Enable (disable) asynchronous version of CLI\n\
-"), stream);
- fputs_unfiltered (_("\
- -b BAUDRATE Set serial port baud rate used for remote debugging.\n\
- --batch Exit after processing options.\n\
- --cd=DIR Change current directory to DIR.\n\
- --command=FILE Execute GDB commands from FILE.\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\
+ --readnever Do not read symbol files.\n\
+ --write Set writing into executable and core files.\n\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\
+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-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 (_("\
+Output and user interface control:\n\n\
+ --fullname Output information used by emacs-GDB interface.\n\
--interpreter=INTERP\n\
Select a specific interpreter / user interface\n\
-"), stream);
- fputs_unfiltered (_("\
- -l TIMEOUT Set timeout in seconds for remote debugging.\n\
- --mapped Use mapped symbol files if supported on this system.\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\
+ -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\
- -w Use a window interface.\n\
- --write Set writing into executable and core files.\n\
- --xdb XDB compatibility mode.\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\
+ --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\
+"), stream);
+ if (!system_gdbinit.empty ())
+ {
+ std::string output;
+ for (size_t idx = 0; idx < system_gdbinit.size (); ++idx)
+ {
+ output += system_gdbinit[idx];
+ if (idx < system_gdbinit.size () - 1)
+ output += ", ";
+ }
+ fprintf_unfiltered (stream, _("\
+ * system-wide init files: %s\n\
+"), output.c_str ());
+ }
+ if (!home_gdbinit.empty ())
+ fprintf_unfiltered (stream, _("\
+ * user-specific init file: %s\n\
+"), home_gdbinit.c_str ());
+ if (!local_gdbinit.empty ())
+ fprintf_unfiltered (stream, _("\
+ * local init file (see also 'set auto-load local-gdbinit'): ./%s\n\
+"), local_gdbinit.c_str ());
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\
-Report bugs to \"bug-gdb@gnu.org\".\
"), stream);
+ if (REPORT_BUGS_TO[0] && stream == gdb_stdout)
+ fprintf_unfiltered (stream, _("\
+Report bugs to \"%s\".\n\
+"), REPORT_BUGS_TO);
}
projects / deliverable / binutils-gdb.git / blobdiff