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/* Top level stuff for GDB, the GNU debugger.
Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
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
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef NeXT
#include <Foundation/Foundation.h>
#import "TellDisplayer.h"
#endif /* NeXT */
#include "defs.h"
#include <setjmp.h>
#include "top.h"
#include "target.h"
#include "inferior.h"
#include "call-cmds.h"
#include "getopt.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>
#include <string.h>
/* R_OK lives in either unistd.h or sys/file.h. */
#ifdef USG
#include <unistd.h>
#endif
#ifndef NO_SYS_FILE
#include <sys/file.h>
#endif
/* Temporary variable for SET_TOP_LEVEL. */
static int top_level_val;
/* Do a setjmp on error_return and quit_return. catch_errors is
generally a cleaner way to do this, but main() would look pretty
ugly if it had to use catch_errors each time. */
#define SET_TOP_LEVEL() \
(((top_level_val = setjmp (error_return)) \
? (PTR) 0 : (PTR) memcpy (quit_return, error_return, sizeof (jmp_buf))) \
, top_level_val)
/* 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;
extern void gdb_init PARAMS ((void));
int
main (argc, argv)
int argc;
char **argv;
{
int count;
static int quiet = 0;
static int batch = 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;
#ifdef NeXT
/* Autorelease pool needs to be enabled */
NSAutoreleasePool *pool;
#endif /* NeXT */
long time_at_startup = get_run_time ();
START_PROGRESS (NULL, 0);
/* This needs to happen before the first use of malloc. */
init_malloc ((PTR) NULL);
#ifdef NeXT
/* Autorelease pool turned on */
pool = [[NSAutoreleasePool alloc] init];
#endif /* NeXT */
#if defined (ALIGN_STACK_ON_STARTUP)
i = (int) &count & 0x3;
if (i != 0)
alloca (4 - i);
#endif
/* If error() is called from initialization code, just exit */
if (SET_TOP_LEVEL ()) {
exit(1);
}
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;
/* Parse arguments and options. */
#ifndef WIN32
{
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[] =
{
{"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'},
{"command", required_argument, 0, 'x'},
{"version", no_argument, &print_version, 1},
{"x", required_argument, 0, 'x'},
{"directory", 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},
/* 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)
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;
break;
case 's':
symarg = optarg;
break;
case 'e':
execarg = optarg;
break;
case 'c':
corearg = optarg;
break;
case 'x':
cmdarg[ncmd++] = optarg;
if (ncmd >= cmdsize)
{
cmdsize *= 2;
cmdarg = (char **) xrealloc ((char *)cmdarg,
cmdsize * sizeof (*cmdarg));
}
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;
#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);
}
}
/* 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:
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;
}
#endif
gdb_init ();
/* 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)
{
/* --version is intentionally not documented here, because we
are printing the version here, and the help is long enough
already. */
print_gdb_version (gdb_stdout);
/* Make sure the output gets printed. */
wrap_here ("");
printf_filtered ("\n");
/* But don't use *_filtered here. We don't want to prompt for continue
no matter how small the screen or how much we're going to print. */
fputs_unfiltered ("\
This is the GNU debugger. Usage:\n\
gdb [options] [executable-file [core-file or process-id]]\n\
Options:\n\
--help Print this message.\n\
--quiet Do not print version number on startup.\n\
--fullname Output information used by emacs-GDB interface.\n\
--epoch Output information used by epoch emacs-GDB interface.\n\
", gdb_stdout);
fputs_unfiltered ("\
--batch Exit after processing options.\n\
--nx Do not read .gdbinit file.\n\
--tty=TTY Use TTY for input/output by the program being debugged.\n\
--cd=DIR Change current directory to DIR.\n\
--directory=DIR Search for source files in DIR.\n\
", gdb_stdout);
fputs_unfiltered ("\
--command=FILE Execute GDB commands from FILE.\n\
--symbols=SYMFILE Read symbols from SYMFILE.\n\
--exec=EXECFILE Use EXECFILE as the executable.\n\
--se=FILE Use FILE as symbol file and executable file.\n\
", gdb_stdout);
fputs_unfiltered ("\
--core=COREFILE Analyze the core dump COREFILE.\n\
-b BAUDRATE Set serial port baud rate used for remote debugging.\n\
--mapped Use mapped symbol files if supported on this system.\n\
--readnow Fully read symbol files on first access.\n\
--nw Do not use a window interface.\n\
", gdb_stdout);
#ifdef ADDITIONAL_OPTION_HELP
fputs_unfiltered (ADDITIONAL_OPTION_HELP, gdb_stdout);
#endif
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", 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_gnu_advertisement ();
print_gdb_version (gdb_stdout);
if (symarg)
printf_filtered ("..");
#ifdef DONT_FILTER
printf("\n");
#else
wrap_here("");
#endif /* DONT_FILTER -- NeXT-ianism */
gdb_flush (gdb_stdout); /* Force to screen during slow operations */
}
#ifdef NeXT
tell_displayer_state_changed(DBG_STATE_ACTIVE);
#endif
error_pre_print = "\n\n";
/* We may get more than one warning, don't double space all of them... */
warning_pre_print = "\nwarning: ";
#ifdef NeXT
/* Read local init file, if it exists in /usr/lib */
{
static const char localdir[] = "/usr/lib/";
char localinit[sizeof(localdir) + 40 /*sizeof(gdbinit), should be safe*/];
sprintf(localinit, "%s%s", localdir, gdbinit);
if (!inhibit_gdbinit && access (localinit, R_OK) == 0)
if (!SET_TOP_LEVEL())
source_command (localinit, 0);
}
#endif /* NeXT */
/* 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 (getenv ("HOME")) +
strlen (gdbinit) + 10);
strcpy (homeinit, getenv ("HOME"));
strcat (homeinit, "/");
strcat (homeinit, gdbinit);
if (!inhibit_gdbinit && access (homeinit, R_OK) == 0)
{
if (!SET_TOP_LEVEL ())
source_command (homeinit, 0);
}
do_cleanups (ALL_CLEANUPS);
/* 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)
{
if (!SET_TOP_LEVEL ())
{
cd_command (cdarg, 0);
}
}
do_cleanups (ALL_CLEANUPS);
for (i = 0; i < ndir; i++)
if (!SET_TOP_LEVEL ())
directory_command (dirarg[i], 0);
free ((PTR)dirarg);
do_cleanups (ALL_CLEANUPS);
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. */
if (!SET_TOP_LEVEL ())
{
exec_file_command (execarg, !batch);
symbol_file_command (symarg, 0);
}
}
else
{
if (execarg != NULL)
if (!SET_TOP_LEVEL ())
exec_file_command (execarg, !batch);
if (symarg != NULL)
if (!SET_TOP_LEVEL ())
symbol_file_command (symarg, 0);
}
do_cleanups (ALL_CLEANUPS);
/* 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";
warning_pre_print = "\nwarning: ";
if (corearg != NULL)
if (!SET_TOP_LEVEL ())
core_file_command (corearg, !batch);
else if (isdigit (corearg[0]) && !SET_TOP_LEVEL ())
attach_command (corearg, !batch);
do_cleanups (ALL_CLEANUPS);
if (ttyarg != NULL)
if (!SET_TOP_LEVEL ())
tty_command (ttyarg, !batch);
do_cleanups (ALL_CLEANUPS);
#ifdef ADDITIONAL_OPTION_HANDLER
ADDITIONAL_OPTION_HANDLER;
#endif
/* Error messages should no longer be distinguished with extra output. */
error_pre_print = 0;
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 && access (gdbinit, R_OK) == 0)
{
if (!SET_TOP_LEVEL ())
source_command (gdbinit, 0);
}
do_cleanups (ALL_CLEANUPS);
for (i = 0; i < ncmd; i++)
{
if (!SET_TOP_LEVEL ())
{
if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0')
read_command_file (stdin);
else
source_command (cmdarg[i], !batch);
do_cleanups (ALL_CLEANUPS);
}
}
free ((PTR)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 (NULL);
/* 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)
{
extern char **environ;
char *lim = (char *) sbrk (0);
printf_unfiltered ("Startup size: data size %ld\n",
(long) (lim - (char *) &environ));
}
/* The default command loop.
The WIN32 Gui calls this main to set up gdb's state, and
has its own command loop. */
#if !defined (WIN32)
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);
}
}
/* No exit -- exit is through quit_command. */
#endif
}
void
init_proc ()
{
}
int
proc_wait (pid, status)
int pid;
int *status;
{
#ifndef __GO32__
return wait (status);
#endif
}
void
proc_remove_foreign (pid)
int pid;
{
}
//#ifndef NeXT
void
fputs_unfiltered (linebuffer, stream)
const char *linebuffer;
FILE *stream;
{
if (fputs_unfiltered_hook)
{
/* FIXME: I think we should only be doing this for stdout or stderr.
Either that or we should be passing stream to the hook so it can
deal with it. If that is cleaned up, this function can go back
into utils.c and the fputs_unfiltered_hook can replace the current
ability to avoid this function by not linking with main.c. */
fputs_unfiltered_hook (linebuffer, stream);
return;
}
fputs (linebuffer, stream);
}
//#endif /* NeXT */
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.