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authorJohn Gilmore <gnu@cygnus>1992-02-21 01:35:32 +0000
committerJohn Gilmore <gnu@cygnus>1992-02-21 01:35:32 +0000
commitee0613d186dc9956209bd99f3f5f86ad8069366f (patch)
tree9ea6288316301f73fb44f0306b6d2ba9d85ebf51 /gdb/main.c
parente17960fb42997fc740d0f74544be9713a0209878 (diff)
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* core.c, exec.c, solib.c: Rename target_ops sections =>
to_sections, etc. * infcmd.c, inflow.c, infptrace.c, infrun.c, main.c, target.c, target.h: target_kill takes no args.
Diffstat (limited to 'gdb/main.c')
-rw-r--r--gdb/main.c117
1 files changed, 57 insertions, 60 deletions
diff --git a/gdb/main.c b/gdb/main.c
index 0c18627..179de5f 100644
--- a/gdb/main.c
+++ b/gdb/main.c
@@ -1,5 +1,5 @@
/* Top level `main' program for GDB, the GNU debugger.
- Copyright 1986, 1987, 1988, 1989, 1990, 1991 Free Software Foundation, Inc.
+ Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
This file is part of GDB.
@@ -43,7 +43,9 @@ int fclose ();
#endif
#include <string.h>
+#ifndef NO_SYS_FILE
#include <sys/file.h>
+#endif
#include <setjmp.h>
#include <sys/param.h>
#include <sys/stat.h>
@@ -82,6 +84,10 @@ extern char *error_pre_print;
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. */
@@ -383,33 +389,40 @@ main (argc, argv)
with no equivalent). */
static struct option long_options[] =
{
- {"quiet", 0, &quiet, 1},
- {"nx", 0, &inhibit_gdbinit, 1},
- {"batch", 0, &batch, 1},
- {"epoch", 0, &epoch_interface, 1},
- {"fullname", 0, &frame_file_full_name, 1},
- {"help", 0, &print_help, 1},
- {"se", 1, 0, 10},
- {"symbols", 1, 0, 's'},
- {"s", 1, 0, 's'},
- {"exec", 1, 0, 'e'},
- {"core", 1, 0, 'c'},
- {"c", 1, 0, 'c'},
- {"command", 1, 0, 'x'},
- {"x", 1, 0, 'x'},
- {"directory", 1, 0, 'd'},
- {"cd", 1, 0, 11},
- {"tty", 1, 0, 't'},
- {"b", 1, 0, 'b'},
+ {"quiet", no_argument, &quiet, 1},
+ {"q", 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},
+ {"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'},
+ {"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'},
/* Allow machine descriptions to add more options... */
#ifdef ADDITIONAL_OPTIONS
ADDITIONAL_OPTIONS
#endif
- {0, 0, 0, 0},
+ {0, no_argument, 0, 0},
};
while (1)
{
+ int option_index;
+
c = getopt_long_only (argc, argv, "",
long_options, &option_index);
if (c == EOF)
@@ -739,7 +752,7 @@ execute_command (p, from_tty)
register struct cmd_list_element *c;
register struct command_line *cmdlines;
register enum language flang;
- static struct language_defn *saved_language = 0;
+ static const struct language_defn *saved_language = 0;
static int warned = 0;
free_all_values ();
@@ -791,7 +804,7 @@ execute_command (p, from_tty)
{
if (language_mode == language_mode_auto) {
if (saved_language)
- language_info ();
+ language_info (1); /* Print what changed. */
}
saved_language = current_language;
warned = 0;
@@ -1613,7 +1626,7 @@ static void
print_gdb_version ()
{
printf_filtered ("\
-GDB %s, Copyright 1991 Free Software Foundation, Inc.",
+GDB %s, Copyright 1992 Free Software Foundation, Inc.",
version);
}
@@ -1648,7 +1661,7 @@ quit_command (args, from_tty)
{
if (query ("The program is running. Quit anyway? "))
{
- target_kill (args, from_tty);
+ target_kill ();
}
else
error ("Not confirmed.");
@@ -1659,10 +1672,13 @@ quit_command (args, from_tty)
exit (0);
}
+/* Returns whether GDB is running on a terminal and whether the user
+ desires that questions be asked of them on that terminal. */
+
int
input_from_terminal_p ()
{
- return (instream == stdin) & caution;
+ return gdb_has_a_terminal && (instream == stdin) & caution;
}
/* ARGSUSED */
@@ -1699,6 +1715,9 @@ cd_command (dir, from_tty)
dir = tilde_expand (dir);
make_cleanup (free, dir);
+ if (chdir (dir) < 0)
+ perror_with_name (dir);
+
len = strlen (dir);
dir = savestring (dir, len - (len > 1 && dir[len-1] == '/'));
if (dir[0] == '/')
@@ -1738,9 +1757,6 @@ cd_command (dir, from_tty)
}
}
- if (chdir (dir) < 0)
- perror_with_name (dir);
-
forget_cached_source_info ();
if (from_tty)
@@ -1843,21 +1859,6 @@ show_commands (args, from_tty)
struct _hist_entry *history_get();
extern int history_base;
-#if 0
- /* This is all reported by individual "show" commands. */
- printf_filtered ("Interactive command editing is %s.\n",
- command_editing_p ? "on" : "off");
-
- printf_filtered ("History expansion of command input is %s.\n",
- history_expansion_p ? "on" : "off");
- printf_filtered ("Writing of a history record upon exit is %s.\n",
- write_history_p ? "enabled" : "disabled");
- printf_filtered ("The size of the history list (number of stored commands) is %d.\n",
- history_size);
- printf_filtered ("The name of the history record is \"%s\".\n\n",
- history_filename ? history_filename : "");
-#endif /* 0 */
-
/* Print out some of the commands from the command history. */
/* First determine the length of the history list. */
hist_len = history_size;
@@ -1879,7 +1880,7 @@ show_commands (args, from_tty)
/* "info editing <exp>" should print around command number <exp>. */
num = (parse_and_eval_address (args) - history_base) - Hist_print / 2;
}
- /* "info editing" means print the last Hist_print commands. */
+ /* "show commands" means print the last Hist_print commands. */
else
{
num = hist_len - Hist_print;
@@ -1897,14 +1898,6 @@ show_commands (args, from_tty)
num = 0;
}
-#if 0
- /* No need for a header now that "info editing" only prints one thing. */
- if (num == hist_len - Hist_print)
- printf_filtered ("The list of the last %d commands is:\n\n", Hist_print);
- else
- printf_filtered ("Some of the stored commands are:\n\n");
-#endif /* 0 */
-
for (offset = num; offset < num + Hist_print && offset < hist_len; offset++)
{
printf_filtered ("%5d %s\n", history_base + offset,
@@ -1916,8 +1909,8 @@ show_commands (args, from_tty)
num += Hist_print;
/* If the user repeats this command with return, it should do what
- "info editing +" does. This is unnecessary if arg is null,
- because "info editing +" is not useful after "info editing". */
+ "show commands +" does. This is unnecessary if arg is null,
+ because "show commands +" is not useful after "show commands". */
if (from_tty && args)
{
args[0] = '+';
@@ -2153,9 +2146,10 @@ when gdb is started.");
add_show_from_set
(add_set_cmd ("editing", class_support, var_boolean, (char *)&command_editing_p,
- "Set command line editing.\n\
+ "Set editing of command lines as they are typed.\n\
Use \"on\" to enable to enable the editing, and \"off\" to disable it.\n\
-Without an argument, command line editing is enabled.", &setlist),
+Without an argument, command line editing is enabled. To edit, use\n\
+EMACS-like or VI-like commands like control-P or ESC.", &setlist),
&showlist);
add_prefix_cmd ("history", class_support, set_history,
@@ -2198,19 +2192,22 @@ ie. the number of previous commands to keep a record of.", &sethistlist);
&showlist);
add_prefix_cmd ("info", class_info, info_command,
- "Generic command for printing status.",
+ "Generic command for showing things about the program being debugged.",
&infolist, "info ", 0, &cmdlist);
add_com_alias ("i", "info", class_info, 1);
add_prefix_cmd ("show", class_info, show_command,
- "Generic command for showing things set with \"set\".",
+ "Generic command for showing things about the debugger.",
&showlist, "show ", 0, &cmdlist);
/* Another way to get at the same thing. */
add_info ("set", show_command, "Show all GDB settings.");
- add_cmd ("commands", no_class, show_commands, "Status of command editor.",
+ add_cmd ("commands", no_class, show_commands,
+ "Show the the history of commands you typed.\n\
+You can supply a command number to start with, or a `+' to start after\n\
+the previous command number shown.",
&showlist);
add_cmd ("version", no_class, show_version,
- "Report what version of GDB this is.", &showlist);
+ "Show what version of GDB this is.", &showlist);
}