diff options
author | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
---|---|---|
committer | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
commit | 071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch) | |
tree | 5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/main.c | |
parent | 1730ec6b1848f0f32154277f788fb29f88d8475b (diff) | |
download | gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.zip gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.gz gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.bz2 |
Initial creation of sourceware repository
Diffstat (limited to 'gdb/main.c')
-rw-r--r-- | gdb/main.c | 787 |
1 files changed, 0 insertions, 787 deletions
diff --git a/gdb/main.c b/gdb/main.c deleted file mode 100644 index 72ebc3e..0000000 --- a/gdb/main.c +++ /dev/null @@ -1,787 +0,0 @@ -/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#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 "gdb_stat.h" -#include <ctype.h> - -#include "gdb_string.h" - -/* 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 = SIGSETJMP (error_return)) \ - ? (PTR) 0 : (PTR) memcpy (quit_return, error_return, sizeof (SIGJMP_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; - -/* Whether this is the command line version or not */ -int tui_version = 0; - -/* Whether xdb commands will be handled */ -int xdb_commands = 0; - -/* Whether dbx commands will be handled */ -int dbx_commands = 0; - -GDB_FILE *gdb_stdout; -GDB_FILE *gdb_stderr; - -static void print_gdb_help PARAMS ((GDB_FILE *)); -extern void gdb_init PARAMS ((char *)); -#ifdef __CYGWIN__ -#include <windows.h> /* for MAX_PATH */ -#include <sys/cygwin.h> /* for cygwin32_conv_to_posix_path */ -#endif - -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; - - long time_at_startup = get_run_time (); - - int gdb_file_size; - - 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 - - /* 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; - - gdb_file_size = sizeof(GDB_FILE); - - gdb_stdout = (GDB_FILE *)xmalloc (gdb_file_size); - gdb_stdout->ts_streamtype = afile; - gdb_stdout->ts_filestream = stdout; - gdb_stdout->ts_strbuf = NULL; - gdb_stdout->ts_buflen = 0; - - gdb_stderr = (GDB_FILE *)xmalloc (gdb_file_size); - gdb_stderr->ts_streamtype = afile; - gdb_stderr->ts_filestream = stderr; - gdb_stderr->ts_strbuf = NULL; - gdb_stderr->ts_buflen = 0; - - /* 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[] = - { -#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'}, - {"command", required_argument, 0, 'x'}, - {"version", no_argument, &print_version, 1}, - {"x", required_argument, 0, 'x'}, -/* start-sanitize-gdbtk */ -#ifdef GDBTK - {"tclcommand", required_argument, 0, 'z'}, -#endif -/* end-sanitize-gdbtk */ - {"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; -/* 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 'x': - cmdarg[ncmd++] = optarg; - if (ncmd >= cmdsize) - { - cmdsize *= 2; - cmdarg = (char **) xrealloc ((char *)cmdarg, - cmdsize * sizeof (*cmdarg)); - } - break; - /* start-sanitize-gdbtk */ -#ifdef GDBTK - case 'z': - { - extern int gdbtk_test PARAMS ((char *)); - if (!gdbtk_test (optarg)) - { - fprintf_unfiltered (gdb_stderr, "%s: unable to load tclcommand file \"%s\"", - argv[0], optarg); - exit (1); - } - break; - } -#endif /* GDBTK */ - /* end-sanitize-gdbtk */ - 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; - } - 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 - - /* 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; - } - -#if defined(TUI) - if (tui_version) - init_ui_hook = tuiInit; -#endif - 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. */ -#ifdef __CYGWIN__ - { - char * tmp = getenv ("HOME"); - - if (tmp != NULL) - { - homedir = (char *) alloca (MAX_PATH+1); - cygwin32_conv_to_posix_path (tmp, homedir); - } - else - homedir = NULL; - } -#else - homedir = getenv ("HOME"); -#endif - if (homedir) - { - homeinit = (char *) alloca (strlen (homedir) + - strlen (gdbinit) + 10); - strcpy (homeinit, homedir); - strcat (homeinit, "/"); - strcat (homeinit, gdbinit); - - if (!inhibit_gdbinit) - { - 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"; - quit_pre_print = error_pre_print; - 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 = 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) - { - 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 (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 - } - - /* 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 || defined __GNUC__ - 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 - -} - -/* Don't use *_filtered for printing help. We don't want to prompt - for continue no matter how small the screen or how much we're going - to print. */ - -static void -print_gdb_help (stream) - GDB_FILE *stream; -{ - fputs_unfiltered ("\ -This is the GNU debugger. Usage:\n\n\ - gdb [options] [executable-file [core-file or process-id]]\n\n\ -Options:\n\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\ -", stream); - fputs_unfiltered ("\ - --dbx DBX compatibility mode.\n\ - --directory=DIR Search for source files in DIR.\n\ - --epoch Output information used by epoch emacs-GDB interface.\n\ - --exec=EXECFILE Use EXECFILE as the executable.\n\ - --fullname Output information used by emacs-GDB interface.\n\ - --help Print this message.\n\ -", stream); - fputs_unfiltered ("\ - --mapped Use mapped symbol files if supported on this system.\n\ - --nw Do not use a window interface.\n\ - --nx Do not read .gdbinit file.\n\ - --quiet Do not print version number on startup.\n\ - --readnow Fully read symbol files on first access.\n\ -", stream); - fputs_unfiltered ("\ - --se=FILE Use FILE as symbol file and executable file.\n\ - --symbols=SYMFILE Read symbols from SYMFILE.\n\ - --tty=TTY Use TTY for input/output by the program being debugged.\n\ -", stream); -#if defined(TUI) - fputs_unfiltered ("\ - --tui Use a terminal user interface.\n\ -", stream); -#endif - fputs_unfiltered ("\ - --version Print version information and then exit.\n\ - --xdb XDB compatibility mode.\n\ -", stream); -#ifdef ADDITIONAL_OPTION_HELP - fputs_unfiltered (ADDITIONAL_OPTION_HELP, stream); -#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\ -Report bugs to \"bug-gdb@prep.ai.mit.edu\".\ -", stream); -} - - -void -init_proc () -{ -} - -void -proc_remove_foreign (pid) - int pid; -{ -} - -/* All I/O sent to the *_filtered and *_unfiltered functions eventually ends up - here. The fputs_unfiltered_hook is primarily used by GUIs to collect all - output and send it to the GUI, instead of the controlling terminal. Only - output to gdb_stdout and gdb_stderr are sent to the hook. Everything else - is sent on to fputs to allow file I/O to be handled appropriately. */ - -void -fputs_unfiltered (linebuffer, stream) - const char *linebuffer; - GDB_FILE *stream; -{ -#if defined(TUI) - extern int tui_owns_terminal; -#endif - /* If anything (GUI, TUI) wants to capture GDB output, this is - * the place... the way to do it is to set up - * fputs_unfiltered_hook. - * Our TUI ("gdb -tui") used to hook output, but in the - * new (XDB style) scheme, we do not do that anymore... - RT - */ - if (fputs_unfiltered_hook - && (stream == gdb_stdout - || stream == gdb_stderr)) - fputs_unfiltered_hook (linebuffer, stream); - else - { -#if defined(TUI) - if (tui_version && tui_owns_terminal) { - /* If we get here somehow while updating the TUI (from - * within a tuiDo(), then we need to temporarily - * set up the terminal for GDB output. This probably just - * happens on error output. - */ - - if (stream->ts_streamtype == astring) { - gdb_file_adjust_strbuf(strlen(linebuffer), stream); - strcat(stream->ts_strbuf, linebuffer); - } else { - tuiTermUnsetup(0, (tui_version) ? cmdWin->detail.commandInfo.curch : 0); - fputs (linebuffer, stream->ts_filestream); - tuiTermSetup(0); - if (linebuffer[strlen(linebuffer) - 1] == '\n') - tuiClearCommandCharCount(); - else - tuiIncrCommandCharCountBy(strlen(linebuffer)); - } - } else { - /* The normal case - just do a fputs() */ - if (stream->ts_streamtype == astring) { - gdb_file_adjust_strbuf(strlen(linebuffer), stream); - strcat(stream->ts_strbuf, linebuffer); - } else fputs (linebuffer, stream->ts_filestream); - } - - -#else - if (stream->ts_streamtype == astring) { - gdb_file_adjust_strbuf(strlen(linebuffer), stream); - strcat(stream->ts_strbuf, linebuffer); - } else fputs (linebuffer, stream->ts_filestream); -#endif - } -} |