/* Top level `main' program for GDB, the GNU debugger.
- Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
+ Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994
+ Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "gdbcmd.h"
+#include "call-cmds.h"
#include "symtab.h"
#include "inferior.h"
#include "signals.h"
#include "gdbtypes.h"
#include "expression.h"
#include "language.h"
+#include "terminal.h" /* For job_control. */
+#include "annotate.h"
#include "getopt.h"
/* readline defines this. */
#undef savestring
-#ifdef USG
#include <sys/types.h>
+#ifdef USG
+/* What is this for? X_OK? */
#include <unistd.h>
#endif
#include <sys/stat.h>
#include <ctype.h>
-#ifdef SET_STACK_LIMIT_HUGE
-#include <sys/time.h>
-#include <sys/resource.h>
-
-int original_stack_limit;
-#endif
-
/* Prototypes for local functions */
static char *
command_loop_marker PARAMS ((int));
static void
-print_gdb_version PARAMS ((void));
+print_gdb_version PARAMS ((GDB_FILE *));
static void
quit_command PARAMS ((char *, int));
static void
-initialize_main PARAMS ((void));
+init_main PARAMS ((void));
static void
-initialize_history PARAMS ((void));
+init_history PARAMS ((void));
static void
-initialize_cmd_lists PARAMS ((void));
+init_cmd_lists PARAMS ((void));
static void
float_handler PARAMS ((int));
static void
source_command PARAMS ((char *, int));
-static void
-cd_command PARAMS ((char *, int));
+static void cd_command PARAMS ((char *, int));
static void
print_gnu_advertisement PARAMS ((void));
static void
show_commands PARAMS ((char *, int));
-static void
-dump_me_command PARAMS ((char *, int));
-
static void
echo_command PARAMS ((char *, int));
static void
info_command PARAMS ((char *, int));
+static void
+complete_command PARAMS ((char *, int));
+
static void
do_nothing PARAMS ((int));
+static int
+quit_cover PARAMS ((char *));
+
static void
disconnect PARAMS ((int));
#ifndef GDBINIT_FILENAME
#define GDBINIT_FILENAME ".gdbinit"
#endif
-char gdbinit[] = GDBINIT_FILENAME;
+static char gdbinit[] = GDBINIT_FILENAME;
+static int inhibit_gdbinit = 0;
#define ALL_CLEANUPS ((struct cleanup *)0)
extern char *version;
-/* Message to be printed before the error message, when an error occurs. */
+/* Canonical host name as a string. */
-extern char *error_pre_print;
+extern char *host_name;
-/* Message to be printed before the warning message, when a warning occurs. */
+/* Canonical target name as a string. */
-extern char *warning_pre_print;
+extern char *target_name;
extern char lang_frame_mismatch_warn[]; /* language.c */
-/* Whether GDB's stdin is on a terminal. */
-
-extern int gdb_has_a_terminal; /* inflow.c */
-
/* Flag for whether we want all the "from_tty" gubbish printed. */
int caution = 1; /* Default is yes, sigh. */
struct cmd_list_element *setlist;
+/* Chain containing all defined unset subcommands */
+
+struct cmd_list_element *unsetlist;
+
/* Chain containing all defined show subcommands. */
+
struct cmd_list_element *showlist;
/* Chain containing all defined \"set history\". */
struct cmd_list_element *sethistlist;
/* Chain containing all defined \"show history\". */
+
struct cmd_list_element *showhistlist;
/* Chain containing all defined \"unset history\". */
struct cmd_list_element *unsethistlist;
-/* stdio stream that command input is being read from. */
+/* Chain containing all defined maintenance subcommands. */
+
+#if MAINTENANCE_CMDS
+struct cmd_list_element *maintenancelist;
+#endif
+
+/* Chain containing all defined "maintenance info" subcommands. */
+
+#if MAINTENANCE_CMDS
+struct cmd_list_element *maintenanceinfolist;
+#endif
+
+/* Chain containing all defined "maintenance print" subcommands. */
+
+#if MAINTENANCE_CMDS
+struct cmd_list_element *maintenanceprintlist;
+#endif
+
+struct cmd_list_element *setprintlist;
+
+struct cmd_list_element *showprintlist;
+
+struct cmd_list_element *setchecklist;
+
+struct cmd_list_element *showchecklist;
+
+/* stdio stream that command input is being read from. Set to stdin normally.
+ Set by source_command to the file we are sourcing. Set to NULL if we are
+ executing a user-defined command. */
FILE *instream;
void (*window_hook) PARAMS ((FILE *, char *));
-extern int frame_file_full_name;
extern int mapped_symbol_files;
extern int readnow_symbol_files;
char *line;
int linesize = 100;
+/* Nonzero if the current command is modified by "server ". This
+ affects things like recording into the command history, comamnds
+ repeating on RETURN, etc. This is so a user interface (emacs, GUI,
+ whatever) can issue its own commands and also send along commands
+ from the user, and have the user not notice that the user interface
+ is issuing commands too. */
+int server_command;
+
/* Baud rate specified for talking to serial target systems. Default
- is left as a zero pointer, so targets can choose their own defaults. */
+ is left as -1, so targets can choose their own defaults. */
+/* FIXME: This means that "show remotebaud" and gr_files_info can print -1
+ or (unsigned int)-1. This is a Bad User Interface. */
+
+int baud_rate = -1;
-char *baud_rate;
+/* Non-zero tells remote* modules to output debugging info. */
+
+int remote_debug = 0;
/* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */
/* Some System V have job control but not sigsetmask(). */
#if !defined (HAVE_SIGSETMASK)
-#define HAVE_SIGSETMASK !defined (USG)
+#if !defined (USG)
+#define HAVE_SIGSETMASK 1
+#else
+#define HAVE_SIGSETMASK 0
+#endif
#endif
#if 0 == (HAVE_SIGSETMASK)
#define sigsetmask(n)
#endif
\f
-/* This is how `error' returns to command level. */
+/* Where to go for return_to_top_level (RETURN_ERROR). */
+static jmp_buf error_return;
+/* Where to go for return_to_top_level (RETURN_QUIT). */
+static jmp_buf quit_return;
-jmp_buf to_top_level;
+/* 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)
+
+/* Return for reason REASON. This generally gets back to the command
+ loop, but can be caught via catch_errors. */
NORETURN void
-return_to_top_level ()
+return_to_top_level (reason)
+ enum return_reason reason;
{
quit_flag = 0;
immediate_quit = 0;
+
+ /* Perhaps it would be cleaner to do this via the cleanup chain (not sure
+ I can think of a reason why that is vital, though). */
bpstat_clear_actions(stop_bpstat); /* Clear queued breakpoint commands */
+
disable_current_display ();
do_cleanups (ALL_CLEANUPS);
- (NORETURN void) longjmp (to_top_level, 1);
+
+ if (annotation_level > 1)
+ switch (reason)
+ {
+ case RETURN_QUIT:
+ annotate_quit ();
+ break;
+ case RETURN_ERROR:
+ annotate_error ();
+ break;
+ }
+
+ (NORETURN void) longjmp
+ (reason == RETURN_ERROR ? error_return : quit_return, 1);
}
-/* Call FUNC with arg ARGS, catching any errors.
- If there is no error, return the value returned by FUNC.
- If there is an error, print ERRSTRING, print the specific error message,
- then return zero. */
+/* Call FUNC with arg ARGS, catching any errors. If there is no
+ error, return the value returned by FUNC. If there is an error,
+ print ERRSTRING, print the specific error message, then return
+ zero.
+
+ Must not be called with immediate_quit in effect (bad things might
+ happen, say we got a signal in the middle of a memcpy to quit_return).
+ This is an OK restriction; with very few exceptions immediate_quit can
+ be replaced by judicious use of QUIT.
+
+ MASK specifies what to catch; it is normally set to
+ RETURN_MASK_ALL, if for no other reason than that the code which
+ calls catch_errors might not be set up to deal with a quit which
+ isn't caught. But if the code can deal with it, it generally
+ should be RETURN_MASK_ERROR, unless for some reason it is more
+ useful to abort only the portion of the operation inside the
+ catch_errors. Note that quit should return to the command line
+ fairly quickly, even if some further processing is being done. */
int
-catch_errors (func, args, errstring)
+catch_errors (func, args, errstring, mask)
int (*func) PARAMS ((char *));
- char *args;
+ PTR args;
char *errstring;
+ return_mask mask;
{
- jmp_buf saved;
+ jmp_buf saved_error;
+ jmp_buf saved_quit;
+ jmp_buf tmp_jmp;
int val;
struct cleanup *saved_cleanup_chain;
char *saved_error_pre_print;
saved_cleanup_chain = save_cleanups ();
saved_error_pre_print = error_pre_print;
- memcpy ((char *)saved, (char *)to_top_level, sizeof (jmp_buf));
+ if (mask & RETURN_MASK_ERROR)
+ memcpy ((char *)saved_error, (char *)error_return, sizeof (jmp_buf));
+ if (mask & RETURN_MASK_QUIT)
+ memcpy (saved_quit, quit_return, sizeof (jmp_buf));
error_pre_print = errstring;
- if (setjmp (to_top_level) == 0)
- val = (*func) (args);
+ if (setjmp (tmp_jmp) == 0)
+ {
+ if (mask & RETURN_MASK_ERROR)
+ memcpy (error_return, tmp_jmp, sizeof (jmp_buf));
+ if (mask & RETURN_MASK_QUIT)
+ memcpy (quit_return, tmp_jmp, sizeof (jmp_buf));
+ val = (*func) (args);
+ }
else
val = 0;
restore_cleanups (saved_cleanup_chain);
error_pre_print = saved_error_pre_print;
- memcpy ((char *)to_top_level, (char *)saved, sizeof (jmp_buf));
+ if (mask & RETURN_MASK_ERROR)
+ memcpy (error_return, saved_error, sizeof (jmp_buf));
+ if (mask & RETURN_MASK_QUIT)
+ memcpy (quit_return, saved_quit, sizeof (jmp_buf));
return val;
}
disconnect (signo)
int signo;
{
- kill_inferior_fast ();
- signal (signo, SIG_DFL);
+ catch_errors (quit_cover, NULL,
+ "Could not kill the program being debugged", RETURN_MASK_ALL);
+ signal (SIGHUP, SIG_DFL);
kill (getpid (), SIGHUP);
}
+
+/* Just a little helper function for disconnect(). */
+
+static int
+quit_cover (s)
+char *s;
+{
+ caution = 0; /* Throw caution to the wind -- we're exiting.
+ This prevents asking the user dumb questions. */
+ quit_command((char *)0, 0);
+ return 0;
+}
\f
+/* Line number we are currently in in a file which is being sourced. */
+static int source_line_number;
+
+/* Name of the file we are sourcing. */
+static char *source_file_name;
+
+/* Buffer containing the error_pre_print used by the source stuff.
+ Malloc'd. */
+static char *source_error;
+static int source_error_allocated;
+
+/* Something to glom on to the start of error_pre_print if source_file_name
+ is set. */
+static char *source_pre_error;
+
/* Clean up on error during a "source" command (or execution of a
user-defined command). */
do_cleanups (cleanups);
}
\f
+extern void init_proc ();
+
+void
+gdb_init ()
+{
+ /* Run the init function of each source file */
+
+ init_cmd_lists (); /* This needs to be done first */
+ initialize_all_files ();
+ init_main (); /* But that omits this file! Do it now */
+ init_signals ();
+
+ init_proc ();
+
+ /* We need a default language for parsing expressions, so simple things like
+ "set width 0" won't fail if no language is explicitly set in a config file
+ or implicitly set by reading an executable during startup. */
+ set_language (language_c);
+ expected_language = current_language; /* don't warn about the change. */
+}
+
+#ifndef MAIN_OVERRIDE
int
main (argc, argv)
int argc;
char **argv;
{
int count;
- static int inhibit_gdbinit = 0;
static int quiet = 0;
static int batch = 0;
char *cdarg = NULL;
char *ttyarg = NULL;
- /* Pointers to all arguments of +command option. */
+ /* 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. */
+ /* 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;
+/* start-sanitize-mpw */
+#ifdef MPW
+ /* Drop into MacsBug, but only if the executable is specially named. */
+ if (strcmp(argv[0], "DEBUGGDB") == 0)
+ DebugStr("\pat start of GDB main");
+
+ if (StandAlone)
+ mac_app = mac_init ();
+#endif /* MPW */
+/* end-sanitize-mpw */
/* This needs to happen before the first use of malloc. */
init_malloc ((PTR) NULL);
#endif
/* If error() is called from initialization code, just exit */
- if (setjmp (to_top_level)) {
+ if (SET_TOP_LEVEL ()) {
exit(1);
}
getcwd (dirbuf, sizeof (dirbuf));
current_directory = dirbuf;
-#ifdef SET_STACK_LIMIT_HUGE
- {
- struct rlimit rlim;
-
- /* Set the stack limit huge so that alloca (particularly stringtab
- * in dbxread.c) does not fail. */
- getrlimit (RLIMIT_STACK, &rlim);
- original_stack_limit = rlim.rlim_cur;
- rlim.rlim_cur = rlim.rlim_max;
- setrlimit (RLIMIT_STACK, &rlim);
- }
-#endif /* SET_STACK_LIMIT_HUGE */
-
/* Parse arguments and options. */
{
int c;
- static int print_help;
/* 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). */
{"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},
- {"fullname", no_argument, &frame_file_full_name, 1},
- {"f", no_argument, &frame_file_full_name, 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'},
{"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},
case 11:
cdarg = optarg;
break;
+ case 12:
+ /* FIXME: what if the syntax is wrong (e.g. not digits)? */
+ annotation_level = atoi (optarg);
+ break;
+ case 'f':
+ annotation_level = 1;
+ break;
case 's':
symarg = optarg;
break;
quiet = 1;
break;
case 'b':
- baud_rate = optarg;
+ {
+ 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 (stderr,
- "Use `%s +help' for a complete list of options.\n",
+ fprintf_unfiltered (gdb_stderr,
+ "Use `%s --help' for a complete list of options.\n",
argv[0]);
exit (1);
}
-
}
- if (print_help)
- {
- fputs ("\
-This is GDB, the GNU debugger. Use the command\n\
- gdb [options] [executable [core-file]]\n\
-to enter the debugger.\n\
-\n\
-Options available are:\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\
- -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\
- -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\
- -core=COREFILE Analyze the core dump COREFILE.\n\
- -b BAUDRATE Set serial port baud rate used for remote debugging\n\
-", stderr);
-#ifdef ADDITIONAL_OPTION_HELP
- fputs (ADDITIONAL_OPTION_HELP, stderr);
-#endif
- fputs ("\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", stderr);
- /* Exiting after printing this message seems like
- the most useful thing to do. */
- exit (0);
- }
-
+
/* OK, that's all the options. The other arguments are filenames. */
count = 0;
for (; optind < argc; optind++)
corearg = argv[optind];
break;
case 3:
- fprintf (stderr,
+ fprintf_unfiltered (gdb_stderr,
"Excess command line arguments ignored. (%s%s)\n",
argv[optind], (optind == argc - 1) ? "" : " ...");
break;
quiet = 1;
}
- /* Run the init function of each source file */
+ gdb_init ();
- initialize_cmd_lists (); /* This needs to be done first */
- initialize_all_files ();
- initialize_main (); /* But that omits this file! Do it now */
- init_signals ();
+ /* 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. */
+/* start-sanitize-mpw */
+/* For reasons too ugly to describe... */
+#ifdef MPW_C
+ fputs_unfiltered ("This is the GNU debugger.\n", gdb_stdout);
+#else
+/* end-sanitize-mpw */
+ 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\
+ --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\
+ --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\
+ --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\
+", gdb_stdout);
+/* start-sanitize-mpw */
+#endif /* MPW_C */
+/* end-sanitize-mpw */
+#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 ();
+ print_gdb_version (gdb_stdout);
if (symarg)
printf_filtered ("..");
wrap_here("");
- fflush (stdout); /* Force to screen during slow operations */
+ gdb_flush (gdb_stdout); /* Force to screen during slow operations */
}
error_pre_print = "\n\n";
- warning_pre_print = "\n\nwarning: ";
+ /* 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 (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 (!setjmp (to_top_level))
+ if (!SET_TOP_LEVEL ())
{
cd_command (cdarg, 0);
- init_source_path ();
}
}
do_cleanups (ALL_CLEANUPS);
for (i = 0; i < ndir; i++)
- if (!setjmp (to_top_level))
+ if (!SET_TOP_LEVEL ())
directory_command (dirarg[i], 0);
- free (dirarg);
+ free ((PTR)dirarg);
do_cleanups (ALL_CLEANUPS);
if (execarg != NULL
&& symarg != NULL
- && strcmp (execarg, symarg) == 0)
+ && 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 (!setjmp (to_top_level))
+ if (!SET_TOP_LEVEL ())
{
exec_file_command (execarg, !batch);
symbol_file_command (symarg, 0);
else
{
if (execarg != NULL)
- if (!setjmp (to_top_level))
+ if (!SET_TOP_LEVEL ())
exec_file_command (execarg, !batch);
if (symarg != NULL)
- if (!setjmp (to_top_level))
+ if (!SET_TOP_LEVEL ())
symbol_file_command (symarg, 0);
}
do_cleanups (ALL_CLEANUPS);
error_pre_print = "\n";
warning_pre_print = "\nwarning: ";
- /* Set the initial language. */
- {
- struct partial_symtab *pst = find_main_psymtab ();
- enum language lang = language_unknown;
- if (pst == NULL) ;
-#if 0
- /* A better solution would set the language when reading the psymtab.
- This would win for symbol file formats that encode the langauge,
- such as DWARF. But, we don't do that yet. FIXME */
- else if (pst->language != language_unknown)
- lang = pst->language;
-#endif
- else if (pst->filename != NULL)
- lang = deduce_language_from_filename (pst->filename);
- if (lang == language_unknown) /* Make C the default language */
- lang = language_c;
- set_language (lang);
- }
-
if (corearg != NULL)
- if (!setjmp (to_top_level))
+ if (!SET_TOP_LEVEL ())
core_file_command (corearg, !batch);
- else if (isdigit (corearg[0]) && !setjmp (to_top_level))
+ else if (isdigit (corearg[0]) && !SET_TOP_LEVEL ())
attach_command (corearg, !batch);
do_cleanups (ALL_CLEANUPS);
if (ttyarg != NULL)
- if (!setjmp (to_top_level))
+ if (!SET_TOP_LEVEL ())
tty_command (ttyarg, !batch);
do_cleanups (ALL_CLEANUPS);
error_pre_print = 0;
warning_pre_print = "warning: ";
- {
- struct stat homebuf, cwdbuf;
- char *homedir, *homeinit;
-
- /* Read init file, if it exists in home directory */
- homedir = getenv ("HOME");
- if (homedir)
+ /* 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)
{
- 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 (!setjmp (to_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. */
- }
-
- /* Read the input file in the current directory, *if* it isn't
- the same file (it should exist, also). */
-
- if (!homedir
- || bcmp ((char *) &homebuf,
- (char *) &cwdbuf,
- sizeof (struct stat)))
- if (!inhibit_gdbinit && access (gdbinit, R_OK) == 0)
- if (!setjmp (to_top_level))
+ if (!SET_TOP_LEVEL ())
source_command (gdbinit, 0);
- do_cleanups (ALL_CLEANUPS);
- }
+ }
+ do_cleanups (ALL_CLEANUPS);
for (i = 0; i < ncmd; i++)
- if (!setjmp (to_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 (cmdarg);
+ {
+ 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. */
- initialize_history();
+ init_history();
if (batch)
{
while (1)
{
- if (!setjmp (to_top_level))
+ if (!SET_TOP_LEVEL ())
{
do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */
+/* start-sanitize-mpw */
+#ifdef MPW
+ /* If we're being a Mac application, go into a Mac-specific
+ event-handling loop instead. We still want to be inside
+ the outer loop, because that will catch longjmps resulting
+ from some command executions. */
+ if (mac_app)
+ mac_command_loop ();
+ else
+#endif /* MPW */
+/* end-sanitize-mpw */
command_loop ();
quit_command ((char *)0, instream == stdin);
}
}
/* No exit -- exit is through quit_command. */
}
+\f
+void
+init_proc ()
+{
+}
+
+int
+proc_wait (pid, status)
+ int pid;
+ int *status;
+{
+ return wait (status);
+}
+
+void
+proc_remove_foreign (pid)
+ int pid;
+{
+}
+#endif /* MAIN_OVERRIDE */
+
+void
+execute_user_command (c, args)
+ struct cmd_list_element *c;
+ char *args;
+{
+ register struct command_line *cmdlines;
+ struct cleanup *old_chain;
+
+ if (args)
+ error ("User-defined commands cannot take arguments.");
+
+ cmdlines = c->user_commands;
+ if (cmdlines == 0)
+ /* Null command */
+ return;
+
+ /* Set the instream to 0, indicating execution of a
+ user-defined function. */
+ old_chain = make_cleanup (source_cleanup, instream);
+ instream = (FILE *) 0;
+ while (cmdlines)
+ {
+ execute_command (cmdlines->line, 0);
+ cmdlines = cmdlines->next;
+ }
+ do_cleanups (old_chain);
+}
/* Execute the line P as a command.
Pass FROM_TTY as second argument to the defining function. */
int from_tty;
{
register struct cmd_list_element *c;
- register struct command_line *cmdlines;
register enum language flang;
- static const struct language_defn *saved_language = 0;
static int warned = 0;
free_all_values ();
c = lookup_cmd (&p, cmdlist, "", 0, 1);
/* Pass null arg rather than an empty one. */
arg = *p ? p : 0;
+
+ /* If this command has been hooked, run the hook first. */
+ if (c->hook)
+ execute_user_command (c->hook, (char *)0);
+
if (c->class == class_user)
- {
- struct cleanup *old_chain;
-
- if (*p)
- error ("User-defined commands cannot take arguments.");
- cmdlines = c->user_commands;
- if (cmdlines == 0)
- /* Null command */
- return;
-
- /* Set the instream to 0, indicating execution of a
- user-defined function. */
- old_chain = make_cleanup (source_cleanup, instream);
- instream = (FILE *) 0;
- while (cmdlines)
- {
- execute_command (cmdlines->line, 0);
- cmdlines = cmdlines->next;
- }
- do_cleanups (old_chain);
- }
+ execute_user_command (c, arg);
else if (c->type == set_cmd || c->type == show_cmd)
do_setshow_command (arg, from_tty & caution, c);
else if (c->function.cfunc == NO_FUNCTION)
}
/* Tell the user if the language has changed (except first time). */
- if (current_language != saved_language)
+ if (current_language != expected_language)
{
if (language_mode == language_mode_auto) {
- if (saved_language)
- language_info (1); /* Print what changed. */
+ language_info (1); /* Print what changed. */
}
- saved_language = current_language;
warned = 0;
}
reinitialize_more_filter ();
old_chain = make_cleanup (command_loop_marker, 0);
command = command_line_input (instream == stdin ? prompt : (char *) NULL,
- instream == stdin);
+ instream == stdin, "prompt");
if (command == 0)
return;
execute_command (command, instream == stdin);
void
dont_repeat ()
{
+ if (server_command)
+ return;
+
/* If we aren't reading from standard input, we are saving the last
thing read from stdin in line and don't want to delete it. Null lines
won't repeat here in any case. */
if (prrompt)
{
- printf (prrompt);
- fflush (stdout);
+ /* Don't use a _filtered function here. It causes the assumed
+ character position to be off, since the newline we read from
+ the user is not accounted for. */
+ fputs_unfiltered (prrompt, gdb_stdout);
+/* start-sanitize-mpw */
+#ifdef MPW
+ /* Move to a new line so the entered line doesn't have a prompt
+ on the front of it. */
+ fputs_unfiltered ("\n", gdb_stdout);
+#endif /* MPW */
+/* end-sanitize-mpw */
+ gdb_flush (gdb_stdout);
}
result = (char *) xmalloc (result_size);
if (c == EOF)
{
+ if (input_index > 0)
+ /* The last line does not end with a newline. Return it, and
+ if we are called again fgetc will still return EOF and
+ we'll return NULL then. */
+ break;
free (result);
return NULL;
}
static int history_size;
static char *history_filename;
+/* readline uses the word breaks for two things:
+ (1) In figuring out where to point the TEXT parameter to the
+ rl_completion_entry_function. Since we don't use TEXT for much,
+ it doesn't matter a lot what the word breaks are for this purpose, but
+ it does affect how much stuff M-? lists.
+ (2) If one of the matches contains a word break character, readline
+ will quote it. That's why we switch between
+ gdb_completer_word_break_characters and
+ gdb_completer_command_word_break_characters. I'm not sure when
+ we need this behavior (perhaps for funky characters in C++ symbols?). */
+
/* Variables which are necessary for fancy command line editing. */
char *gdb_completer_word_break_characters =
- " \t\n!@#$%^&*()-+=|~`}{[]\"';:?/>.<,";
+ " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
+
+/* When completing on command names, we remove '-' from the list of
+ word break characters, since we use it in command names. If the
+ readline library sees one in any of the current completion strings,
+ it thinks that the string needs to be quoted and automatically supplies
+ a leading quote. */
+char *gdb_completer_command_word_break_characters =
+ " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,";
+
+/* Characters that can be used to quote completion strings. Note that we
+ can't include '"' because the gdb C parser treats such quoted sequences
+ as strings. */
+char *gdb_completer_quote_characters =
+ "'";
/* Functions that are used as part of the fancy command line editing. */
but don't want to complete on anything else either. */
/* ARGSUSED */
char **
-noop_completer (text)
+noop_completer (text, prefix)
char *text;
+ char *prefix;
{
return NULL;
}
-/* Generate symbol names one by one for the completer. If STATE is
- zero, then we need to initialize, otherwise the initialization has
- already taken place. TEXT is what we expect the symbol to start
- with. RL_LINE_BUFFER is available to be looked at; it contains the
- entire text of the line. RL_POINT is the offset in that line of
- the cursor. You should pretend that the line ends at RL_POINT.
- The result is NULL if there are no more completions, else a char
- string which is a possible completion. */
+/* Complete on filenames. */
+char **
+filename_completer (text, word)
+ char *text;
+ char *word;
+{
+ /* From readline. */
+ extern char *filename_completion_function ();
+ int subsequent_name;
+ char **return_val;
+ int return_val_used;
+ int return_val_alloced;
+
+ return_val_used = 0;
+ /* Small for testing. */
+ return_val_alloced = 1;
+ return_val = (char **) xmalloc (return_val_alloced * sizeof (char *));
+
+ subsequent_name = 0;
+ while (1)
+ {
+ char *p;
+ p = filename_completion_function (text, subsequent_name);
+ if (return_val_used >= return_val_alloced)
+ {
+ return_val_alloced *= 2;
+ return_val =
+ (char **) xrealloc (return_val,
+ return_val_alloced * sizeof (char *));
+ }
+ if (p == NULL)
+ {
+ return_val[return_val_used++] = p;
+ break;
+ }
+ /* Like emacs, don't complete on old versions. Especially useful
+ in the "source" command. */
+ if (p[strlen (p) - 1] == '~')
+ continue;
+
+ {
+ char *q;
+ if (word == text)
+ /* Return exactly p. */
+ return_val[return_val_used++] = p;
+ else if (word > text)
+ {
+ /* Return some portion of p. */
+ q = xmalloc (strlen (p) + 5);
+ strcpy (q, p + (word - text));
+ return_val[return_val_used++] = q;
+ free (p);
+ }
+ else
+ {
+ /* Return some of TEXT plus p. */
+ q = xmalloc (strlen (p) + (text - word) + 5);
+ strncpy (q, word, text - word);
+ q[text - word] = '\0';
+ strcat (q, p);
+ return_val[return_val_used++] = q;
+ free (p);
+ }
+ }
+ subsequent_name = 1;
+ }
+#if 0
+ /* There is no way to do this just long enough to affect quote inserting
+ without also affecting the next completion. This should be fixed in
+ readline. FIXME. */
+ /* Insure that readline does the right thing
+ with respect to inserting quotes. */
+ rl_completer_word_break_characters = "";
+#endif
+ return return_val;
+}
+
+/* Here are some useful test cases for completion. FIXME: These should
+ be put in the test suite. They should be tested with both M-? and TAB.
+
+ "show output-" "radix"
+ "show output" "-radix"
+ "p" ambiguous (commands starting with p--path, print, printf, etc.)
+ "p " ambiguous (all symbols)
+ "info t foo" no completions
+ "info t " no completions
+ "info t" ambiguous ("info target", "info terminal", etc.)
+ "info ajksdlfk" no completions
+ "info ajksdlfk " no completions
+ "info" " "
+ "info " ambiguous (all info commands)
+ "p \"a" no completions (string constant)
+ "p 'a" ambiguous (all symbols starting with a)
+ "p b-a" ambiguous (all symbols starting with a)
+ "p b-" ambiguous (all symbols)
+ "file Make" "file" (word break hard to screw up here)
+ "file ../gdb.stabs/we" "ird" (needs to not break word at slash)
+ */
+
+/* Generate completions one by one for the completer. Each time we are
+ called return another potential completion to the caller. The function
+ is misnamed; it just completes on commands or passes the buck to the
+ command's completer function; the stuff specific to symbol completion
+ is in make_symbol_completion_list.
+
+ TEXT is readline's idea of the "word" we are looking at; we don't really
+ like readline's ideas about word breaking so we ignore it.
+
+ MATCHES is the number of matches that have currently been collected from
+ calling this completion function. When zero, then we need to initialize,
+ otherwise the initialization has already taken place and we can just
+ return the next potential completion string.
+
+ Returns NULL if there are no more completions, else a pointer to a string
+ which is a possible completion.
+
+ RL_LINE_BUFFER is available to be looked at; it contains the entire text
+ of the line. RL_POINT is the offset in that line of the cursor. You
+ should pretend that the line ends at RL_POINT. */
static char *
-symbol_completion_function (text, state)
+symbol_completion_function (text, matches)
char *text;
- int state;
+ int matches;
{
- static char **list = (char **)NULL;
- static int index;
- char *output;
- extern char *rl_line_buffer;
- extern int rl_point;
+ static char **list = (char **)NULL; /* Cache of completions */
+ static int index; /* Next cached completion */
+ char *output = NULL;
char *tmp_command, *p;
+ /* Pointer within tmp_command which corresponds to text. */
+ char *word;
struct cmd_list_element *c, *result_list;
- if (!state)
+ if (matches == 0)
{
- /* Free the storage used by LIST, but not by the strings inside. This is
- because rl_complete_internal () frees the strings. */
+ /* The caller is beginning to accumulate a new set of completions, so
+ we need to find all of them now, and cache them for returning one at
+ a time on future calls. */
+
if (list)
- free (list);
+ {
+ /* Free the storage used by LIST, but not by the strings inside.
+ This is because rl_complete_internal () frees the strings. */
+ free ((PTR)list);
+ }
list = 0;
index = 0;
- /* Decide whether to complete on a list of gdb commands or on
- symbols. */
+ /* Choose the default set of word break characters to break completions.
+ If we later find out that we are doing completions on command strings
+ (as opposed to strings supplied by the individual command completer
+ functions, which can be any string) then we will switch to the
+ special word break set for command strings, which leaves out the
+ '-' character used in some commands. */
+
+ rl_completer_word_break_characters =
+ gdb_completer_word_break_characters;
+
+ /* Decide whether to complete on a list of gdb commands or on symbols. */
tmp_command = (char *) alloca (rl_point + 1);
p = tmp_command;
-
+
strncpy (tmp_command, rl_line_buffer, rl_point);
tmp_command[rl_point] = '\0';
+ /* Since text always contains some number of characters leading up
+ to rl_point, we can find the equivalent position in tmp_command
+ by subtracting that many characters from the end of tmp_command. */
+ word = tmp_command + rl_point - strlen (text);
if (rl_point == 0)
{
- /* An empty line we want to consider ambiguous; that is,
- it could be any command. */
+ /* An empty line we want to consider ambiguous; that is, it
+ could be any command. */
c = (struct cmd_list_element *) -1;
result_list = 0;
}
else
- c = lookup_cmd_1 (&p, cmdlist, &result_list, 1);
+ {
+ c = lookup_cmd_1 (&p, cmdlist, &result_list, 1);
+ }
/* Move p up to the next interesting thing. */
while (*p == ' ' || *p == '\t')
- p++;
+ {
+ p++;
+ }
if (!c)
- /* He's typed something unrecognizable. Sigh. */
- list = (char **) 0;
+ {
+ /* It is an unrecognized command. So there are no
+ possible completions. */
+ list = NULL;
+ }
else if (c == (struct cmd_list_element *) -1)
{
- /* If we didn't recognize everything up to the thing that
- needs completing, and we don't know what command it is
- yet, we are in trouble. Part of the trouble might be
- that the list of delimiters used by readline includes
- '-', which we use in commands. Check for this. */
- if (p + strlen(text) != tmp_command + rl_point) {
- if (tmp_command[rl_point - strlen(text) - 1] == '-')
- text = p;
- else {
- /* This really should not produce an error. Better would
- be to pretend to hit RETURN here; this would produce a
- response like "Ambiguous command: foo, foobar, etc",
- and leave the line available for re-entry with ^P. Instead,
- this error blows away the user's typed input without
- any way to get it back. */
- error (" Unrecognized command.");
+ char *q;
+
+ /* lookup_cmd_1 advances p up to the first ambiguous thing, but
+ doesn't advance over that thing itself. Do so now. */
+ q = p;
+ while (*q && (isalnum (*q) || *q == '-' || *q == '_'))
+ ++q;
+ if (q != tmp_command + rl_point)
+ {
+ /* There is something beyond the ambiguous
+ command, so there are no possible completions. For
+ example, "info t " or "info t foo" does not complete
+ to anything, because "info t" can be "info target" or
+ "info terminal". */
+ list = NULL;
}
- }
-
- /* He's typed something ambiguous. This is easier. */
- if (result_list)
- list = complete_on_cmdlist (*result_list->prefixlist, text);
else
- list = complete_on_cmdlist (cmdlist, text);
+ {
+ /* We're trying to complete on the command which was ambiguous.
+ This we can deal with. */
+ if (result_list)
+ {
+ list = complete_on_cmdlist (*result_list->prefixlist, p,
+ word);
+ }
+ else
+ {
+ list = complete_on_cmdlist (cmdlist, p, word);
+ }
+ /* Insure that readline does the right thing with respect to
+ inserting quotes. */
+ rl_completer_word_break_characters =
+ gdb_completer_command_word_break_characters;
+ }
}
else
{
- /* If we've gotten this far, gdb has recognized a full
- command. There are several possibilities:
-
- 1) We need to complete on the command.
- 2) We need to complete on the possibilities coming after
- the command.
- 2) We need to complete the text of what comes after the
- command. */
-
- if (!*p && *text)
- /* Always (might be longer versions of thie command). */
- list = complete_on_cmdlist (result_list, text);
- else if (!*p && !*text)
+ /* We've recognized a full command. */
+
+ if (p == tmp_command + rl_point)
{
- if (c->prefixlist)
- list = complete_on_cmdlist (*c->prefixlist, "");
+ /* There is no non-whitespace in the line beyond the command. */
+
+ if (p[-1] == ' ' || p[-1] == '\t')
+ {
+ /* The command is followed by whitespace; we need to complete
+ on whatever comes after command. */
+ if (c->prefixlist)
+ {
+ /* It is a prefix command; what comes after it is
+ a subcommand (e.g. "info "). */
+ list = complete_on_cmdlist (*c->prefixlist, p, word);
+
+ /* Insure that readline does the right thing
+ with respect to inserting quotes. */
+ rl_completer_word_break_characters =
+ gdb_completer_command_word_break_characters;
+ }
+ else
+ {
+ /* It is a normal command; what comes after it is
+ completed by the command's completer function. */
+ list = (*c->completer) (p, word);
+ }
+ }
else
- list = (*c->completer) ("");
+ {
+ /* The command is not followed by whitespace; we need to
+ complete on the command itself. e.g. "p" which is a
+ command itself but also can complete to "print", "ptype"
+ etc. */
+ char *q;
+
+ /* Find the command we are completing on. */
+ q = p;
+ while (q > tmp_command)
+ {
+ if (isalnum (q[-1]) || q[-1] == '-' || q[-1] == '_')
+ --q;
+ else
+ break;
+ }
+
+ list = complete_on_cmdlist (result_list, q, word);
+
+ /* Insure that readline does the right thing
+ with respect to inserting quotes. */
+ rl_completer_word_break_characters =
+ gdb_completer_command_word_break_characters;
+ }
}
else
{
+ /* There is non-whitespace beyond the command. */
+
if (c->prefixlist && !c->allow_unknown)
{
-#if 0
- /* Something like "info adsfkdj". But error() is not
- the proper response; just return no completions
- instead. */
- *p = '\0';
- error ("\"%s\" command requires a subcommand.",
- tmp_command);
-#else
+ /* It is an unrecognized subcommand of a prefix command,
+ e.g. "info adsfkdj". */
list = NULL;
-#endif
}
else
- list = (*c->completer) (text);
+ {
+ /* It is a normal command. */
+ list = (*c->completer) (p, word);
+ }
}
}
}
- /* If the debugged program wasn't compiled with symbols, or if we're
- clearly completing on a command and no command matches, return
- NULL. */
- if (!list)
- return ((char *)NULL);
+ /* If we found a list of potential completions during initialization then
+ dole them out one at a time. The vector of completions is NULL
+ terminated, so after returning the last one, return NULL (and continue
+ to do so) each time we are called after that, until a new list is
+ available. */
+
+ if (list)
+ {
+ output = list[index];
+ if (output)
+ {
+ index++;
+ }
+ }
- output = list[index];
- if (output)
- index++;
+#if 0
+ /* Can't do this because readline hasn't yet checked the word breaks
+ for figuring out whether to insert a quote. */
+ if (output == NULL)
+ /* Make sure the word break characters are set back to normal for the
+ next time that readline tries to complete something. */
+ rl_completer_word_break_characters =
+ gdb_completer_word_break_characters;
+#endif
return (output);
}
+
+/* Skip over a possibly quoted word (as defined by the quote characters
+ and word break characters the completer uses). Returns pointer to the
+ location after the "word". */
+
+char *
+skip_quoted (str)
+ char *str;
+{
+ char quote_char = '\0';
+ char *scan;
+
+ for (scan = str; *scan != '\0'; scan++)
+ {
+ if (quote_char != '\0')
+ {
+ /* Ignore everything until the matching close quote char */
+ if (*scan == quote_char)
+ {
+ /* Found matching close quote. */
+ scan++;
+ break;
+ }
+ }
+ else if (strchr (gdb_completer_quote_characters, *scan))
+ {
+ /* Found start of a quoted string. */
+ quote_char = *scan;
+ }
+ else if (strchr (gdb_completer_word_break_characters, *scan))
+ {
+ break;
+ }
+ }
+ return (scan);
+}
+
\f
#ifdef STOP_SIGNAL
static void
#else
signal (STOP_SIGNAL, stop_sig);
#endif
- printf ("%s", prompt);
- fflush (stdout);
+ printf_unfiltered ("%s", prompt);
+ gdb_flush (gdb_stdout);
/* Forget about any previous command -- null line now will do nothing. */
dont_repeat ();
if (signal (SIGHUP, do_nothing) != SIG_IGN)
signal (SIGHUP, disconnect);
signal (SIGFPE, float_handler);
+
+#if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
+ signal (SIGWINCH, SIGWINCH_HANDLER);
+#endif
}
\f
/* Read one line from the command input stream `instream'
simple input as the user has requested. */
char *
-command_line_input (prrompt, repeat)
+command_line_input (prrompt, repeat, annotation_suffix)
char *prrompt;
int repeat;
+ char *annotation_suffix;
{
static char *linebuffer = 0;
static unsigned linelength = 0;
char *nline;
char got_eof = 0;
+ if (annotation_level > 1 && instream == stdin)
+ {
+ local_prompt = alloca ((prrompt == NULL ? 0 : strlen (prrompt))
+ + strlen (annotation_suffix) + 40);
+ if (prrompt == NULL)
+ local_prompt[0] = '\0';
+ else
+ strcpy (local_prompt, prrompt);
+ strcat (local_prompt, "\n\032\032");
+ strcat (local_prompt, annotation_suffix);
+ strcat (local_prompt, "\n");
+ }
+
if (linebuffer == 0)
{
linelength = 80;
since it should not wait until the user types a newline. */
immediate_quit++;
#ifdef STOP_SIGNAL
- signal (STOP_SIGNAL, stop_sig);
+ if (job_control)
+ signal (STOP_SIGNAL, stop_sig);
#endif
while (1)
{
- /* Reports are that some Sys V's don't flush stdout/err on reads
- from stdin, when stdin/out are sockets rather than ttys. So we
- have to do it ourselves, to make emacs-gdb and xxgdb work.
- On other machines, doing this once per input should be a cheap nop. */
- fflush (stdout);
- fflush (stderr);
+ /* Make sure that all output has been output. Some machines may let
+ you get away with leaving out some of the gdb_flush, but not all. */
+ wrap_here ("");
+ gdb_flush (gdb_stdout);
+ gdb_flush (gdb_stderr);
+
+ if (source_file_name != NULL)
+ {
+ ++source_line_number;
+ sprintf (source_error,
+ "%s%s:%d: Error in sourced command file:\n",
+ source_pre_error,
+ source_file_name,
+ source_line_number);
+ error_pre_print = source_error;
+ }
+
+ if (annotation_level > 1 && instream == stdin)
+ {
+ printf_unfiltered ("\n\032\032pre-");
+ printf_unfiltered (annotation_suffix);
+ printf_unfiltered ("\n");
+ }
/* Don't use fancy stuff if not talking to stdin. */
if (command_editing_p && instream == stdin
else
rl = gdb_readline (local_prompt);
+ if (annotation_level > 1 && instream == stdin)
+ {
+ printf_unfiltered ("\n\032\032post-");
+ printf_unfiltered (annotation_suffix);
+ printf_unfiltered ("\n");
+ }
+
if (!rl || rl == (char *) EOF)
{
got_eof = 1;
}
#ifdef STOP_SIGNAL
- signal (SIGTSTP, SIG_DFL);
+ if (job_control)
+ signal (STOP_SIGNAL, SIG_DFL);
#endif
immediate_quit--;
if (got_eof)
return NULL;
+#define SERVER_COMMAND_LENGTH 7
+ server_command =
+ (p - linebuffer > SERVER_COMMAND_LENGTH)
+ && STREQN (linebuffer, "server ", SERVER_COMMAND_LENGTH);
+ if (server_command)
+ {
+ /* Note that we don't set `line'. Between this and the check in
+ dont_repeat, this insures that repeating will still do the
+ right thing. */
+ *p = '\0';
+ return linebuffer + SERVER_COMMAND_LENGTH;
+ }
+
/* Do history expansion if that is wished. */
if (history_expansion_p && instream == stdin
&& ISATTY (instream))
if (expanded)
{
/* Print the changes. */
- printf ("%s\n", history_value);
+ printf_unfiltered ("%s\n", history_value);
/* If there was an error, call this function again. */
if (expanded < 0)
{
free (history_value);
- return command_line_input (prrompt, repeat);
+ return command_line_input (prrompt, repeat, annotation_suffix);
}
if (strlen (history_value) > linelength)
{
&& ISATTY (stdin) && *linebuffer)
add_history (linebuffer);
- /* Note: lines consisting soley of comments are added to the command
+ /* Note: lines consisting solely of comments are added to the command
history. This is useful when you type a command, and then
realize you don't want to execute it quite yet. You can comment
out the command and then later fetch it from the value history
while (1)
{
dont_repeat ();
- p = command_line_input ((char *) NULL, instream == stdin);
+ p = command_line_input ((char *) NULL, instream == stdin, "commands");
if (p == NULL)
/* Treat end of file like "end". */
break;
{
next = l->next;
free (l->line);
- free (l);
+ free ((PTR)l);
l = next;
}
}
char *arg;
int from_tty;
{
- printf ("\"info\" must be followed by the name of an info command.\n");
- help_list (infolist, "info ", -1, stdout);
+ printf_unfiltered ("\"info\" must be followed by the name of an info command.\n");
+ help_list (infolist, "info ", -1, gdb_stdout);
+}
+
+/* The "complete" command is used by Emacs to implement completion. */
+
+/* ARGSUSED */
+static void
+complete_command (arg, from_tty)
+ char *arg;
+ int from_tty;
+{
+ int i;
+ char *completion;
+
+ dont_repeat ();
+
+ if (arg == NULL)
+ {
+ rl_line_buffer[0] = '\0';
+ rl_point = 0;
+ }
+ else
+ {
+ strcpy (rl_line_buffer, arg);
+ rl_point = strlen (arg);
+ }
+
+ for (completion = symbol_completion_function (rl_line_buffer, i = 0);
+ completion;
+ completion = symbol_completion_function (rl_line_buffer, ++i))
+ printf_unfiltered ("%s\n", completion);
}
/* The "show" command with no arguments shows all the settings. */
char *command;
int from_tty; /* Ignored */
{
- help_cmd (command, stdout);
+ help_cmd (command, gdb_stdout);
}
\f
static void
p = comname;
while (*p)
{
- if (!(*p >= 'A' && *p <= 'Z')
- && !(*p >= 'a' && *p <= 'z')
- && !(*p >= '0' && *p <= '9')
- && *p != '-')
+ if (!isalnum(*p) && *p != '-')
error ("Junk in argument list: \"%s\"", p);
p++;
}
}
-#ifdef IBM6000
-
-lowercase (char *str)
+/* This is just a placeholder in the command data structures. */
+static void
+user_defined_command (ignore, from_tty)
+ char *ignore;
+ int from_tty;
{
- while (*str) {
-
- /* isupper(), tolower() are function calls in AIX. */
- if ( *str >= 'A' && *str <= 'Z')
- *str = *str + 'a' - 'A';
- ++str;
- }
}
-#endif
static void
define_command (comname, from_tty)
int from_tty;
{
register struct command_line *cmds;
- register struct cmd_list_element *c, *newc;
+ register struct cmd_list_element *c, *newc, *hookc = 0;
char *tem = comname;
+#define HOOK_STRING "hook-"
+#define HOOK_LEN 5
validate_comname (comname);
-#ifdef IBM6000
-
- /* If the rest of the commands will be case insensetive, this one
- should behave in the same manner. */
-
- lowercase (comname);
-#endif
-
/* Look it up, and verify that we got an exact match. */
c = lookup_cmd (&tem, cmdlist, "", -1, 1);
- if (c && 0 != strcmp (comname, c->name))
+ if (c && !STREQ (comname, c->name))
c = 0;
if (c)
tem = "Redefine command \"%s\"? ";
else
tem = "Really redefine built-in command \"%s\"? ";
- if (!query (tem, comname))
- error ("Command \"%s\" not redefined.", comname);
+ if (!query (tem, c->name))
+ error ("Command \"%s\" not redefined.", c->name);
}
+ /* If this new command is a hook, then mark the command which it
+ is hooking. Note that we allow hooking `help' commands, so that
+ we can hook the `stop' pseudo-command. */
+
+ if (!strncmp (comname, HOOK_STRING, HOOK_LEN))
+ {
+ /* Look up cmd it hooks, and verify that we got an exact match. */
+ tem = comname+HOOK_LEN;
+ hookc = lookup_cmd (&tem, cmdlist, "", -1, 0);
+ if (hookc && !STREQ (comname+HOOK_LEN, hookc->name))
+ hookc = 0;
+ if (!hookc)
+ {
+ warning ("Your new `%s' command does not hook any existing command.",
+ comname);
+ if (!query ("Proceed? ", (char *)0))
+ error ("Not confirmed.");
+ }
+ }
+
+ comname = savestring (comname, strlen (comname));
+
+ /* If the rest of the commands will be case insensitive, this one
+ should behave in the same manner. */
+ for (tem = comname; *tem; tem++)
+ if (isupper(*tem)) *tem = tolower(*tem);
+
if (from_tty)
{
- printf ("Type commands for definition of \"%s\".\n\
+ printf_unfiltered ("Type commands for definition of \"%s\".\n\
End with a line saying just \"end\".\n", comname);
- fflush (stdout);
+ gdb_flush (gdb_stdout);
}
- comname = savestring (comname, strlen (comname));
cmds = read_command_lines ();
if (c && c->class == class_user)
free_command_lines (&c->user_commands);
- newc = add_cmd (comname, class_user, not_just_help_class_command,
+ newc = add_cmd (comname, class_user, user_defined_command,
(c && c->class == class_user)
? c->doc : savestring ("User-defined.", 13), &cmdlist);
newc->user_commands = cmds;
+
+ /* If this new command is a hook, then mark both commands as being
+ tied. */
+ if (hookc)
+ {
+ hookc->hook = newc; /* Target gets hooked. */
+ newc->hookee = hookc; /* We are marked as hooking target cmd. */
+ }
}
static void
error ("Command \"%s\" is built-in.", comname);
if (from_tty)
- printf ("Type documentation for \"%s\".\n\
+ printf_unfiltered ("Type documentation for \"%s\".\n\
End with a line saying just \"end\".\n", comname);
doclines = read_command_lines ();
static void
print_gnu_advertisement()
{
- printf ("\
+ printf_unfiltered ("\
GDB is free software and you are welcome to distribute copies of it\n\
under certain conditions; type \"show copying\" to see the conditions.\n\
There is absolutely no warranty for GDB; type \"show warranty\" for details.\n\
}
static void
-print_gdb_version ()
+print_gdb_version (stream)
+ GDB_FILE *stream;
{
- printf_filtered ("\
-GDB %s, Copyright 1992 Free Software Foundation, Inc.",
- version);
+ fprintf_filtered (stream, "\
+GDB %s (%s", version, host_name);
+
+ if (!STREQ (host_name, target_name))
+ fprintf_filtered (stream, " --target %s", target_name);
+
+ fprintf_filtered (stream, "), ");
+ wrap_here("");
+ fprintf_filtered (stream, "Copyright 1994 Free Software Foundation, Inc.");
}
/* ARGSUSED */
{
immediate_quit++;
print_gnu_advertisement ();
- print_gdb_version ();
+ print_gdb_version (gdb_stdout);
printf_filtered ("\n");
immediate_quit--;
}
\f
-/* xgdb calls this to reprint the usual GDB prompt. */
+/* xgdb calls this to reprint the usual GDB prompt. Obsolete now that xgdb
+ is obsolete. */
void
print_prompt ()
{
- printf ("%s", prompt);
- fflush (stdout);
+ printf_unfiltered ("%s", prompt);
+ gdb_flush (gdb_stdout);
}
\f
static void
{
if (inferior_pid != 0 && target_has_execution)
{
- if (query ("The program is running. Quit anyway? "))
+ if (attach_flag)
{
- target_kill ();
+ if (query ("The program is running. Quit anyway (and detach it)? "))
+ target_detach (args, from_tty);
+ else
+ error ("Not confirmed.");
}
else
- error ("Not confirmed.");
+ {
+ if (query ("The program is running. Quit anyway (and kill it)? "))
+ target_kill ();
+ else
+ error ("Not confirmed.");
+ }
}
+ /* UDI wants this, to kill the TIP. */
+ target_close (1);
+
/* Save the history information if it is appropriate to do so. */
if (write_history_p && history_filename)
write_history (history_filename);
+
exit (0);
}
int
input_from_terminal_p ()
{
- return gdb_has_a_terminal && (instream == stdin) & caution;
+ return gdb_has_a_terminal () && (instream == stdin) & caution;
}
\f
/* ARGSUSED */
if (args) error ("The \"pwd\" command does not take an argument: %s", args);
getcwd (dirbuf, sizeof (dirbuf));
- if (strcmp (dirbuf, current_directory))
- printf ("Working directory %s\n (canonically %s).\n",
+ if (!STREQ (dirbuf, current_directory))
+ printf_unfiltered ("Working directory %s\n (canonically %s).\n",
current_directory, dirbuf);
else
- printf ("Working directory %s.\n", current_directory);
+ printf_unfiltered ("Working directory %s.\n", current_directory);
}
static void
int from_tty;
{
int len;
- int change;
+ /* Found something other than leading repetitions of "/..". */
+ int found_real_path;
+ char *p;
/* If the new directory is absolute, repeat is a no-op; if relative,
repeat might be useful but is more likely to be a mistake. */
current_directory = dir;
else
{
- current_directory = concat (current_directory, "/", dir, NULL);
+ if (current_directory[0] == '/' && current_directory[1] == '\0')
+ current_directory = concat (current_directory, dir, NULL);
+ else
+ current_directory = concat (current_directory, "/", dir, NULL);
free (dir);
}
/* Now simplify any occurrences of `.' and `..' in the pathname. */
- change = 1;
- while (change)
+ found_real_path = 0;
+ for (p = current_directory; *p;)
{
- char *p;
- change = 0;
-
- for (p = current_directory; *p;)
+ if (p[0] == '/' && p[1] == '.' && (p[2] == 0 || p[2] == '/'))
+ strcpy (p, p + 2);
+ else if (p[0] == '/' && p[1] == '.' && p[2] == '.'
+ && (p[3] == 0 || p[3] == '/'))
{
- if (!strncmp (p, "/./", 2)
- && (p[2] == 0 || p[2] == '/'))
- strcpy (p, p + 2);
- else if (!strncmp (p, "/..", 3)
- && (p[3] == 0 || p[3] == '/')
- && p != current_directory)
+ if (found_real_path)
{
+ /* Search backwards for the directory just before the "/.."
+ and obliterate it and the "/..". */
char *q = p;
- while (q != current_directory && q[-1] != '/') q--;
- if (q != current_directory)
+ while (q != current_directory && q[-1] != '/')
+ --q;
+
+ if (q == current_directory)
+ /* current_directory is
+ a relative pathname ("can't happen"--leave it alone). */
+ ++p;
+ else
{
- strcpy (q-1, p+3);
- p = q-1;
+ strcpy (q - 1, p + 3);
+ p = q - 1;
}
}
- else p++;
+ else
+ /* We are dealing with leading repetitions of "/..", for example
+ "/../..", which is the Mach super-root. */
+ p += 3;
+ }
+ else
+ {
+ found_real_path = 1;
+ ++p;
}
}
pwd_command ((char *) 0, 1);
}
\f
+struct source_cleanup_lines_args {
+ int old_line;
+ char *old_file;
+ char *old_pre_error;
+ char *old_error_pre_print;
+};
+
+static void
+source_cleanup_lines (args)
+ PTR args;
+{
+ struct source_cleanup_lines_args *p =
+ (struct source_cleanup_lines_args *)args;
+ source_line_number = p->old_line;
+ source_file_name = p->old_file;
+ source_pre_error = p->old_pre_error;
+ error_pre_print = p->old_error_pre_print;
+}
+
/* ARGSUSED */
static void
source_command (args, from_tty)
int from_tty;
{
FILE *stream;
- struct cleanup *cleanups;
+ struct cleanup *old_cleanups;
char *file = args;
+ struct source_cleanup_lines_args old_lines;
+ int needed_length;
- if (file == 0)
- /* Let source without arguments read .gdbinit. */
- file = gdbinit;
+ if (file == NULL)
+ {
+ error ("source command requires pathname of file to source.");
+ }
file = tilde_expand (file);
- make_cleanup (free, file);
+ old_cleanups = make_cleanup (free, file);
- stream = fopen (file, "r");
+ stream = fopen (file, FOPEN_RT);
if (stream == 0)
perror_with_name (file);
- cleanups = make_cleanup (fclose, stream);
+ make_cleanup (fclose, stream);
+
+ old_lines.old_line = source_line_number;
+ old_lines.old_file = source_file_name;
+ old_lines.old_pre_error = source_pre_error;
+ old_lines.old_error_pre_print = error_pre_print;
+ make_cleanup (source_cleanup_lines, &old_lines);
+ source_line_number = 0;
+ source_file_name = file;
+ source_pre_error = error_pre_print == NULL ? "" : error_pre_print;
+ source_pre_error = savestring (source_pre_error, strlen (source_pre_error));
+ make_cleanup (free, source_pre_error);
+ /* This will get set every time we read a line. So it won't stay "" for
+ long. */
+ error_pre_print = "";
+
+ needed_length = strlen (source_file_name) + strlen (source_pre_error) + 80;
+ if (source_error_allocated < needed_length)
+ {
+ source_error_allocated *= 2;
+ if (source_error_allocated < needed_length)
+ source_error_allocated = needed_length;
+ if (source_error == NULL)
+ source_error = xmalloc (source_error_allocated);
+ else
+ source_error = xrealloc (source_error, source_error_allocated);
+ }
read_command_file (stream);
- do_cleanups (cleanups);
+ do_cleanups (old_cleanups);
}
/* ARGSUSED */
register int c;
if (text)
- while (c = *p++)
+ while ((c = *p++) != '\0')
{
if (c == '\\')
{
/* Force this output to appear now. */
wrap_here ("");
- fflush (stdout);
+ gdb_flush (gdb_stdout);
}
-/* ARGSUSED */
-static void
-dump_me_command (args, from_tty)
- char *args;
- int from_tty;
-{
- if (query ("Should GDB dump core? "))
- {
- signal (SIGQUIT, SIG_DFL);
- kill (getpid (), SIGQUIT);
- }
-}
\f
/* Functions to manipulate command line editing control variables. */
than the number of the last command). Relative to history_base. */
int hist_len;
- extern struct _hist_entry *history_get PARAMS ((int));
- extern int history_base;
+ extern HIST_ENTRY *history_get PARAMS ((int));
/* Print out some of the commands from the command history. */
/* First determine the length of the history list. */
int from_tty;
struct cmd_list_element *c;
{
- if (history_size == UINT_MAX)
+ if (history_size == INT_MAX)
unstifle_history ();
- else
+ else if (history_size >= 0)
stifle_history (history_size);
+ else
+ {
+ history_size = INT_MAX;
+ error ("History size must be non-negative");
+ }
}
/* ARGSUSED */
char *args;
int from_tty;
{
- printf ("\"set history\" must be followed by the name of a history subcommand.\n");
- help_list (sethistlist, "set history ", -1, stdout);
+ printf_unfiltered ("\"set history\" must be followed by the name of a history subcommand.\n");
+ help_list (sethistlist, "set history ", -1, gdb_stdout);
}
/* ARGSUSED */
{
/* This message is based on ANSI C, section 4.7. Note that integer
divide by zero causes this, so "float" is a misnomer. */
+ signal (SIGFPE, float_handler);
error ("Erroneous arithmetic operation.");
}
\f
static void
-initialize_cmd_lists ()
+init_cmd_lists ()
{
- cmdlist = (struct cmd_list_element *) 0;
- infolist = (struct cmd_list_element *) 0;
- enablelist = (struct cmd_list_element *) 0;
- disablelist = (struct cmd_list_element *) 0;
- deletelist = (struct cmd_list_element *) 0;
- enablebreaklist = (struct cmd_list_element *) 0;
- setlist = (struct cmd_list_element *) 0;
+ cmdlist = NULL;
+ infolist = NULL;
+ enablelist = NULL;
+ disablelist = NULL;
+ deletelist = NULL;
+ enablebreaklist = NULL;
+ setlist = NULL;
+ unsetlist = NULL;
showlist = NULL;
- sethistlist = (struct cmd_list_element *) 0;
+ sethistlist = NULL;
showhistlist = NULL;
- unsethistlist = (struct cmd_list_element *) 0;
+ unsethistlist = NULL;
+#if MAINTENANCE_CMDS
+ maintenancelist = NULL;
+ maintenanceinfolist = NULL;
+ maintenanceprintlist = NULL;
+#endif
+ setprintlist = NULL;
+ showprintlist = NULL;
+ setchecklist = NULL;
+ showchecklist = NULL;
}
/* Init the history buffer. Note that we are called after the init file(s)
*/
static void
-initialize_history()
+init_history()
{
char *tmpenv;
}
static void
-initialize_main ()
+init_main ()
{
struct cmd_list_element *c;
/* Setup important stuff for command line editing. */
rl_completion_entry_function = (int (*)()) symbol_completion_function;
rl_completer_word_break_characters = gdb_completer_word_break_characters;
+ rl_completer_quote_characters = gdb_completer_quote_characters;
rl_readline_name = "gdb";
/* Define the classes of commands.
They will appear in the help list in the reverse of this order. */
+ add_cmd ("internals", class_maintenance, NO_FUNCTION,
+ "Maintenance commands.\n\
+Some gdb commands are provided just for use by gdb maintainers.\n\
+These commands are subject to frequent change, and may not be as\n\
+well documented as user commands.",
+ &cmdlist);
add_cmd ("obscure", class_obscure, NO_FUNCTION, "Obscure features.", &cmdlist);
add_cmd ("aliases", class_alias, NO_FUNCTION, "Aliases of other commands.", &cmdlist);
add_cmd ("user-defined", class_user, NO_FUNCTION, "User-defined commands.\n\
add_com ("pwd", class_files, pwd_command,
"Print working directory. This is used for your program as well.");
- add_com ("cd", class_files, cd_command,
+ c = add_cmd ("cd", class_files, cd_command,
"Set working directory to DIR for debugger and program being debugged.\n\
The change does not take effect for the program being debugged\n\
-until the next time it is started.");
+until the next time it is started.", &cmdlist);
+ c->completer = filename_completer;
add_show_from_set
(add_set_cmd ("prompt", class_support, var_string, (char *)&prompt,
Commands defined in this way do not take arguments.");
#ifdef __STDC__
- add_com ("source", class_support, source_command,
+ c = add_cmd ("source", class_support, source_command,
"Read commands from a file named FILE.\n\
Note that the file \"" GDBINIT_FILENAME "\" is read automatically in this way\n\
-when gdb is started.");
+when gdb is started.", &cmdlist);
#else
/* Punt file name, we can't help it easily. */
- add_com ("source", class_support, source_command,
+ c = add_cmd ("source", class_support, source_command,
"Read commands from a file named FILE.\n\
Note that the file \".gdbinit\" is read automatically in this way\n\
-when gdb is started.");
+when gdb is started.", &cmdlist);
#endif
+ c->completer = filename_completer;
add_com ("quit", class_support, quit_command, "Exit gdb.");
add_com ("help", class_support, help_command, "Print list of commands.");
c->function.sfunc = set_verbose;
set_verbose (NULL, 0, c);
- add_com ("dump-me", class_obscure, dump_me_command,
- "Get fatal error; make debugger dump its core.");
-
add_show_from_set
(add_set_cmd ("editing", class_support, var_boolean, (char *)&command_editing_p,
"Set editing of command lines as they are typed.\n\
Without an argument, saving is enabled.", &sethistlist),
&showhistlist);
- c = add_set_cmd ("size", no_class, var_uinteger, (char *)&history_size,
+ c = add_set_cmd ("size", no_class, var_integer, (char *)&history_size,
"Set the size of the command history, \n\
ie. the number of previous commands to keep a record of.", &sethistlist);
add_show_from_set (c, &showhistlist);
&infolist, "info ", 0, &cmdlist);
add_com_alias ("i", "info", class_info, 1);
+ add_com ("complete", class_obscure, complete_command,
+ "List the completions for the rest of the line as a command.");
+
add_prefix_cmd ("show", class_info, show_command,
"Generic command for showing things about the debugger.",
&showlist, "show ", 0, &cmdlist);
add_cmd ("version", no_class, show_version,
"Show what version of GDB this is.", &showlist);
+
+ /* If target is open when baud changes, it doesn't take effect until the
+ next open (I think, not sure). */
+ add_show_from_set (add_set_cmd ("remotebaud", no_class,
+ var_zinteger, (char *)&baud_rate,
+ "Set baud rate for remote serial I/O.\n\
+This value is used to set the speed of the serial port when debugging\n\
+using remote targets.", &setlist),
+ &showlist);
+
+ add_show_from_set (
+ add_set_cmd ("remotedebug", no_class, var_zinteger, (char *)&remote_debug,
+ "Set debugging of remote protocol.\n\
+When enabled, each packet sent or received with the remote target\n\
+is displayed.", &setlist),
+ &showlist);
}
projects / binutils.git / blobdiff