static int
captured_command_loop (void *data)
{
if (command_loop_hook == NULL)
command_loop ();
else
command_loop_hook ();
/* 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;
}
static int
captured_main (void *data)
{
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;
/* Pointers to various arguments from command line. */
char *symarg = NULL;
char *execarg = NULL;
char *corearg = 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. */
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;
register int i;
long time_at_startup = get_run_time ();
#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);
START_PROGRESS (argv[0], 0);
#ifdef MPW
/* Do all Mac-specific setup. */
mac_init ();
#endif /* MPW */
/* This needs to happen before the first use of malloc. */
init_malloc ((PTR) NULL);
#if defined (ALIGN_STACK_ON_STARTUP)
i = (int) &count & 0x3;
if (i != 0)
alloca (4 - i);
#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 */
/* initialize error() */
error_init ();
/* 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). */
static struct option long_options[] =
{
{"async", no_argument, &event_loop_p, 1},
{"noasync", no_argument, &event_loop_p, 0},
#if defined(TUI)
{"tui", no_argument, &tui_version, 1},
#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},
{"mapped", no_argument, &mapped_symbol_files, 1},
{"m", no_argument, &mapped_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", no_argument, &batch, 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, 12},
{"help", no_argument, &print_help, 1},
{"se", required_argument, 0, 10},
{"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'},
{"version", no_argument, &print_version, 1},
{"x", required_argument, 0, 'x'},
#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'},
{"cd", required_argument, 0, 11},
{"tty", required_argument, 0, 't'},
{"baud", required_argument, 0, 'b'},
{"b", required_argument, 0, 'b'},
{"nw", no_argument, &use_windows, 0},
{"nowindows", no_argument, &use_windows, 0},
{"w", no_argument, &use_windows, 1},
{"windows", no_argument, &use_windows, 1},
{"statistics", no_argument, 0, 13},
{"write", no_argument, &write_files, 1},
{"args", no_argument, &set_args, 1},
/* Allow machine descriptions to add more options... */
#ifdef ADDITIONAL_OPTIONS
ADDITIONAL_OPTIONS
#endif
{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 10:
symarg = optarg;
execarg = optarg;
break;
case 11:
cdarg = optarg;
break;
case 12:
/* FIXME: what if the syntax is wrong (e.g. not digits)? */
annotation_level = atoi (optarg);
break;
case 13:
/* Enable the display of both time and space usage. */
display_time = 1;
display_space = 1;
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':
/* "corearg" is shared by "--core" and "--pid" */
corearg = optarg;
break;
case 'x':
cmdarg[ncmd++] = optarg;
if (ncmd >= cmdsize)
{
cmdsize *= 2;
cmdarg = (char **) xrealloc ((char *) cmdarg,
cmdsize * sizeof (*cmdarg));
}
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':
{
external_editor_command = xstrdup (optarg);
break;
}
#endif /* GDBTK */
case 'i':
interpreter_p = 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;
#ifdef ADDITIONAL_OPTION_CASES
ADDITIONAL_OPTION_CASES
#endif
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;
#ifdef TUI
/* Disable the TUI as well. */
tui_version = 0;
#endif
}
#ifdef TUI
/* An explicit --tui flag overrides the default UI, which is the
window system. */
if (tui_version)
use_windows = 0;
#endif
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;
}
}
if (batch)
quiet = 1;
}
/* Initialize all files. Give the interpreter a chance to take
control of the console via the init_ui_hook()) */
gdb_init (argv[0]);
/* Do these (and anything which might call wrap_here or *_filtered)
after initialize_all_files. */
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);
}
if (!quiet)
{
/* 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 ("");
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... */
warning_pre_print = _("\nwarning: ");
/* 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)
{
homeinit = (char *) alloca (strlen (homedir) +
strlen (gdbinit) + 10);
strcpy (homeinit, homedir);
strcat (homeinit, "/");
strcat (homeinit, gdbinit);
if (!inhibit_gdbinit)
{
catch_command_errors (source_command, homeinit, 0, RETURN_MASK_ALL);
}
/* 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);
}
for (i = 0; i < ndir; i++)
catch_command_errors (directory_command, dirarg[i], 0, RETURN_MASK_ALL);
xfree (dirarg);
if (execarg != NULL
&& symarg != NULL
&& STREQ (execarg, symarg))
{
/* 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);
}
else
{
if (execarg != NULL)
catch_command_errors (exec_file_attach, execarg, !batch, RETURN_MASK_ALL);
if (symarg != NULL)
catch_command_errors (symbol_file_add_main, symarg, 0, RETURN_MASK_ALL);
}
/* 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 != 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. */
if (isdigit (corearg[0]))
{
if (catch_command_errors (attach_command, corearg,
!batch, RETURN_MASK_ALL) == 0)
catch_command_errors (core_file_command, corearg,
!batch, RETURN_MASK_ALL);
}
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);
#ifdef ADDITIONAL_OPTION_HANDLER
ADDITIONAL_OPTION_HANDLER;
#endif
/* 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 (!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 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 */
{
/* 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);
}
#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 ();
if (batch)
{
/* 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. */
#ifdef BEFORE_MAIN_LOOP_HOOK
BEFORE_MAIN_LOOP_HOOK;
#endif
END_PROGRESS (argv[0]);
/* Show time and/or space usage. */
if (display_time)
{
long init_time = get_run_time () - time_at_startup;
printf_unfiltered (_("Startup time: %ld.%06ld\n"),
init_time / 1000000, init_time % 1000000);
}
if (display_space)
{
#ifdef HAVE_SBRK
extern char **environ;
char *lim = (char *) sbrk (0);
printf_unfiltered (_("Startup size: data size %ld\n"),
(long) (lim - (char *) &environ));
#endif
}
#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 (command_loop_hook)
command_loop_hook ();
else
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. */
while (1)
{
catch_errors (captured_command_loop, 0, "", RETURN_MASK_ALL);
}
/* No exit -- exit is through quit_command. */
}
