/* GDB CLI commands.
- Copyright (C) 2000-2017 Free Software Foundation, Inc.
+ Copyright (C) 2000-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "readline/tilde.h"
#include "completer.h"
#include "target.h" /* For baud_rate, remote_debug and remote_timeout. */
-#include "gdb_wait.h" /* For shell escape implementation. */
+#include "gdbsupport/gdb_wait.h" /* For shell escape implementation. */
+#include "gdbcmd.h"
#include "gdb_regex.h" /* Used by apropos_command. */
#include "gdb_vfork.h"
#include "linespec.h"
#include "source.h"
#include "disasm.h"
#include "tracepoint.h"
-#include "filestuff.h"
+#include "gdbsupport/filestuff.h"
#include "location.h"
+#include "block.h"
#include "ui-out.h"
+#include "interps.h"
#include "top.h"
#include "cli/cli-decode.h"
#include "cli/cli-utils.h"
#include "extension.h"
+#include "gdbsupport/pathstuff.h"
#ifdef TUI
#include "tui/tui.h" /* For tui_active et.al. */
#include <algorithm>
#include <string>
-/* Prototypes for local command functions */
-
-static void complete_command (char *, int);
-
-static void echo_command (char *, int);
-
-static void pwd_command (char *, int);
-
-static void show_version (char *, int);
-
-static void help_command (char *, int);
-
-static void show_command (char *, int);
-
-static void info_command (char *, int);
-
-static void show_debug (char *, int);
-
-static void set_debug (char *, int);
-
-static void show_user (char *, int);
-
-static void make_command (char *, int);
-
-static void shell_escape (const char *, int);
-
-static void edit_command (char *, int);
-
-static void list_command (char *, int);
-
/* Prototypes for local utility functions */
static void print_sal_location (const symtab_and_line &sal);
args. */
static void
-info_command (char *arg, int from_tty)
+info_command (const char *arg, int from_tty)
{
printf_unfiltered (_("\"info\" must be followed by "
"the name of an info command.\n"));
/* The "show" command with no arguments shows all the settings. */
static void
-show_command (char *arg, int from_tty)
+show_command (const char *arg, int from_tty)
{
cmd_show_list (showlist, from_tty, "");
}
+
+/* See cli/cli-cmds.h. */
+
+void
+with_command_1 (const char *set_cmd_prefix,
+ cmd_list_element *setlist, const char *args, int from_tty)
+{
+ const char *delim = strstr (args, "--");
+ const char *nested_cmd = nullptr;
+
+ if (delim == args)
+ error (_("Missing setting before '--' delimiter"));
+
+ if (delim == nullptr || *skip_spaces (&delim[2]) == '\0')
+ nested_cmd = repeat_previous ();
+
+ cmd_list_element *set_cmd = lookup_cmd (&args, setlist, set_cmd_prefix,
+ /*allow_unknown=*/ 0,
+ /*ignore_help_classes=*/ 1);
+ gdb_assert (set_cmd != nullptr);
+
+ if (set_cmd->var == nullptr)
+ error (_("Cannot use this setting with the \"with\" command"));
+
+ std::string temp_value
+ = (delim == nullptr ? args : std::string (args, delim - args));
+
+ if (nested_cmd == nullptr)
+ nested_cmd = skip_spaces (delim + 2);
+
+ std::string org_value = get_setshow_command_value_string (set_cmd);
+
+ /* Tweak the setting to the new temporary value. */
+ do_set_command (temp_value.c_str (), from_tty, set_cmd);
+
+ try
+ {
+ scoped_restore save_async = make_scoped_restore (¤t_ui->async, 0);
+
+ /* Execute the nested command. */
+ execute_command (nested_cmd, from_tty);
+ }
+ catch (const gdb_exception &ex)
+ {
+ /* Restore the setting and rethrow. If restoring the setting
+ throws, swallow the new exception and warn. There's nothing
+ else we can reasonably do. */
+ try
+ {
+ do_set_command (org_value.c_str (), from_tty, set_cmd);
+ }
+ catch (const gdb_exception &ex2)
+ {
+ warning (_("Couldn't restore setting: %s"), ex2.what ());
+ }
+
+ throw;
+ }
+
+ /* Restore the setting. */
+ do_set_command (org_value.c_str (), from_tty, set_cmd);
+}
+
+/* See cli/cli-cmds.h. */
+
+void
+with_command_completer_1 (const char *set_cmd_prefix,
+ completion_tracker &tracker,
+ const char *text)
+{
+ tracker.set_use_custom_word_point (true);
+
+ const char *delim = strstr (text, "--");
+
+ /* If we're still not past the "--" delimiter, complete the "with"
+ command as if it was a "set" command. */
+ if (delim == text
+ || delim == nullptr
+ || !isspace (delim[-1])
+ || !(isspace (delim[2]) || delim[2] == '\0'))
+ {
+ std::string new_text = std::string (set_cmd_prefix) + text;
+ tracker.advance_custom_word_point_by (-(int) strlen (set_cmd_prefix));
+ complete_nested_command_line (tracker, new_text.c_str ());
+ return;
+ }
+
+ /* We're past the "--" delimiter. Complete on the sub command. */
+ const char *nested_cmd = skip_spaces (delim + 2);
+ tracker.advance_custom_word_point_by (nested_cmd - text);
+ complete_nested_command_line (tracker, nested_cmd);
+}
+
+/* The "with" command. */
+
+static void
+with_command (const char *args, int from_tty)
+{
+ with_command_1 ("set ", setlist, args, from_tty);
+}
+
+/* "with" command completer. */
+
+static void
+with_command_completer (struct cmd_list_element *ignore,
+ completion_tracker &tracker,
+ const char *text, const char * /*word*/)
+{
+ with_command_completer_1 ("set ", tracker, text);
+}
+
\f
/* Provide documentation on command or list given by COMMAND. FROM_TTY
is ignored. */
static void
-help_command (char *command, int from_tty)
+help_command (const char *command, int from_tty)
{
help_cmd (command, gdb_stdout);
}
[Is that why this function writes output with *_unfiltered?] */
static void
-complete_command (char *arg_entry, int from_tty)
+complete_command (const char *arg, int from_tty)
{
- const char *arg = arg_entry;
-
dont_repeat ();
if (max_completions == 0)
if (arg == NULL)
arg = "";
- completion_tracker tracker_handle_brkchars;
- completion_tracker tracker_handle_completions;
- completion_tracker *tracker;
-
int quote_char = '\0';
const char *word;
- TRY
- {
- word = completion_find_completion_word (tracker_handle_brkchars,
- arg, "e_char);
-
- /* Completers that provide a custom word point in the
- handle_brkchars phase also compute their completions then.
- Completers that leave the completion word handling to readline
- must be called twice. */
- if (tracker_handle_brkchars.use_custom_word_point ())
- tracker = &tracker_handle_brkchars;
- else
- {
- complete_line (tracker_handle_completions, word, arg, strlen (arg));
- tracker = &tracker_handle_completions;
- }
- }
- CATCH (ex, RETURN_MASK_ALL)
- {
- return;
- }
-
- std::string arg_prefix (arg, word - arg);
-
- completion_result result
- = tracker->build_completion_result (word, word - arg, strlen (arg));
+ completion_result result = complete (arg, &word, "e_char);
if (result.number_matches != 0)
{
+ std::string arg_prefix (arg, word - arg);
+
if (result.number_matches == 1)
printf_unfiltered ("%s%s\n", arg_prefix.c_str (), result.match_list[0]);
else
}
static void
-show_version (char *args, int from_tty)
+show_version (const char *args, int from_tty)
{
- print_gdb_version (gdb_stdout);
+ print_gdb_version (gdb_stdout, true);
printf_filtered ("\n");
}
static void
-show_configuration (char *args, int from_tty)
+show_configuration (const char *args, int from_tty)
{
print_gdb_configuration (gdb_stdout);
}
/* Handle the quit command. */
void
-quit_command (char *args, int from_tty)
+quit_command (const char *args, int from_tty)
{
int exit_code = 0;
}
static void
-pwd_command (char *args, int from_tty)
+pwd_command (const char *args, int from_tty)
{
if (args)
error (_("The \"pwd\" command does not take an argument: %s"), args);
- if (! getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)))
+
+ gdb::unique_xmalloc_ptr<char> cwd (getcwd (NULL, 0));
+
+ if (cwd == NULL)
error (_("Error finding name of working directory: %s"),
safe_strerror (errno));
- if (strcmp (gdb_dirbuf, current_directory) != 0)
+ if (strcmp (cwd.get (), current_directory) != 0)
printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
- current_directory, gdb_dirbuf);
+ current_directory, cwd.get ());
else
printf_unfiltered (_("Working directory %s.\n"), current_directory);
}
void
-cd_command (char *dir, int from_tty)
+cd_command (const char *dir, int from_tty)
{
int len;
/* Found something other than leading repetitions of "/..". */
/* There's too much mess with DOSish names like "d:", "d:.",
"d:./foo" etc. Instead of having lots of special #ifdef'ed code,
simply get the canonicalized name of the current directory. */
- dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
+ gdb::unique_xmalloc_ptr<char> cwd (getcwd (NULL, 0));
+ dir = cwd.get ();
#endif
len = strlen (dir);
dir_holder.reset (savestring (dir, len));
if (IS_ABSOLUTE_PATH (dir_holder.get ()))
- current_directory = dir_holder.release ();
+ {
+ xfree (current_directory);
+ current_directory = dir_holder.release ();
+ }
else
{
if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]))
find_and_open_script (const char *script_file, int search_path)
{
int fd;
- int search_flags = OPF_TRY_CWD_FIRST | OPF_RETURN_REALPATH;
+ openp_flags search_flags = OPF_TRY_CWD_FIRST | OPF_RETURN_REALPATH;
gdb::optional<open_script> opened;
gdb::unique_xmalloc_ptr<char> file (tilde_expand (script_file));
/* Search for and open 'file' on the search path used for source
files. Put the full location in *FULL_PATHP. */
- char *temp_path;
+ gdb::unique_xmalloc_ptr<char> full_path;
fd = openp (source_path, search_flags,
- file.get (), O_RDONLY, &temp_path);
- gdb::unique_xmalloc_ptr<char> full_path (temp_path);
+ file.get (), O_RDONLY, &full_path);
if (fd == -1)
return opened;
}
static void
-source_command (char *args, int from_tty)
+source_command (const char *args, int from_tty)
{
- char *file = args;
+ const char *file = args;
int search_path = 0;
scoped_restore save_source_verbose = make_scoped_restore (&source_verbose);
static void
-echo_command (char *text, int from_tty)
+echo_command (const char *text, int from_tty)
{
const char *p = text;
int c;
printf_filtered ("%c", c);
}
+ reset_terminal_style (gdb_stdout);
+
/* Force this output to appear now. */
wrap_here ("");
gdb_flush (gdb_stdout);
}
+/* Sets the last launched shell command convenience variables based on
+ EXIT_STATUS. */
+
+static void
+exit_status_set_internal_vars (int exit_status)
+{
+ struct internalvar *var_code = lookup_internalvar ("_shell_exitcode");
+ struct internalvar *var_signal = lookup_internalvar ("_shell_exitsignal");
+
+ clear_internalvar (var_code);
+ clear_internalvar (var_signal);
+ if (WIFEXITED (exit_status))
+ set_internalvar_integer (var_code, WEXITSTATUS (exit_status));
+ else if (WIFSIGNALED (exit_status))
+ set_internalvar_integer (var_signal, WTERMSIG (exit_status));
+ else
+ warning (_("unexpected shell command exit status %d"), exit_status);
+}
+
static void
shell_escape (const char *arg, int from_tty)
{
arg = "inferior shell";
if (rc == -1)
- {
- fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
- safe_strerror (errno));
- gdb_flush (gdb_stderr);
- }
+ fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg,
+ safe_strerror (errno));
else if (rc)
- {
- fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
- gdb_flush (gdb_stderr);
- }
+ fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc);
#ifdef GLOBAL_CURDIR
/* Make sure to return to the directory GDB thinks it is, in case
the shell command we just ran changed it. */
chdir (current_directory);
+ exit_status_set_internal_vars (rc);
#endif
#else /* Can fork. */
int status, pid;
if ((pid = vfork ()) == 0)
{
- const char *p, *user_shell;
+ const char *p, *user_shell = get_shell ();
close_most_fds ();
- if ((user_shell = (char *) getenv ("SHELL")) == NULL)
- user_shell = "/bin/sh";
-
/* Get the name of the shell for arg0. */
p = lbasename (user_shell);
fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell,
safe_strerror (errno));
- gdb_flush (gdb_stderr);
_exit (0177);
}
waitpid (pid, &status, 0);
else
error (_("Fork failed"));
+ exit_status_set_internal_vars (status);
#endif /* Can fork. */
}
/* Implementation of the "shell" command. */
static void
-shell_command (char *arg, int from_tty)
+shell_command (const char *arg, int from_tty)
{
shell_escape (arg, from_tty);
}
static void
-edit_command (char *arg, int from_tty)
+edit_command (const char *arg, int from_tty)
{
struct symtab_and_line sal;
struct symbol *sym;
}
else
{
- char *arg1;
+ const char *arg1;
/* Now should only be one argument -- decode it in SAL. */
arg1 = arg;
error (_("No line number known for %s."), arg);
}
- if ((editor = (char *) getenv ("EDITOR")) == NULL)
- editor = "/bin/ex";
+ if ((editor = getenv ("EDITOR")) == NULL)
+ editor = "/bin/ex";
fn = symtab_to_fullname (sal.symtab);
xfree (p);
}
+/* The options for the "pipe" command. */
+
+struct pipe_cmd_opts
+{
+ /* For "-d". */
+ char *delimiter = nullptr;
+
+ ~pipe_cmd_opts ()
+ {
+ xfree (delimiter);
+ }
+};
+
+static const gdb::option::option_def pipe_cmd_option_defs[] = {
+
+ gdb::option::string_option_def<pipe_cmd_opts> {
+ "d",
+ [] (pipe_cmd_opts *opts) { return &opts->delimiter; },
+ nullptr,
+ N_("Indicates to use the specified delimiter string to separate\n\
+COMMAND from SHELL_COMMAND, in alternative to |. This is useful in\n\
+case COMMAND contains a | character."),
+ },
+
+};
+
+/* Create an option_def_group for the "pipe" command's options, with
+ OPTS as context. */
+
+static inline gdb::option::option_def_group
+make_pipe_cmd_options_def_group (pipe_cmd_opts *opts)
+{
+ return {{pipe_cmd_option_defs}, opts};
+}
+
+/* Implementation of the "pipe" command. */
+
static void
-list_command (char *arg, int from_tty)
+pipe_command (const char *arg, int from_tty)
+{
+ pipe_cmd_opts opts;
+
+ auto grp = make_pipe_cmd_options_def_group (&opts);
+ gdb::option::process_options
+ (&arg, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp);
+
+ const char *delim = "|";
+ if (opts.delimiter != nullptr)
+ delim = opts.delimiter;
+
+ const char *command = arg;
+ if (command == nullptr)
+ error (_("Missing COMMAND"));
+
+ arg = strstr (arg, delim);
+
+ if (arg == nullptr)
+ error (_("Missing delimiter before SHELL_COMMAND"));
+
+ std::string gdb_cmd (command, arg - command);
+
+ arg += strlen (delim); /* Skip the delimiter. */
+
+ if (gdb_cmd.empty ())
+ gdb_cmd = repeat_previous ();
+
+ const char *shell_command = skip_spaces (arg);
+ if (*shell_command == '\0')
+ error (_("Missing SHELL_COMMAND"));
+
+ FILE *to_shell_command = popen (shell_command, "w");
+
+ if (to_shell_command == nullptr)
+ error (_("Error launching \"%s\""), shell_command);
+
+ try
+ {
+ stdio_file pipe_file (to_shell_command);
+
+ execute_command_to_ui_file (&pipe_file, gdb_cmd.c_str (), from_tty);
+ }
+ catch (...)
+ {
+ pclose (to_shell_command);
+ throw;
+ }
+
+ int exit_status = pclose (to_shell_command);
+
+ if (exit_status < 0)
+ error (_("shell command \"%s\" failed: %s"), shell_command,
+ safe_strerror (errno));
+ exit_status_set_internal_vars (exit_status);
+}
+
+/* Completer for the pipe command. */
+
+static void
+pipe_command_completer (struct cmd_list_element *ignore,
+ completion_tracker &tracker,
+ const char *text, const char *word_ignored)
+{
+ pipe_cmd_opts opts;
+
+ const char *org_text = text;
+ auto grp = make_pipe_cmd_options_def_group (&opts);
+ if (gdb::option::complete_options
+ (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp))
+ return;
+
+ const char *delimiter = "|";
+ if (opts.delimiter != nullptr)
+ delimiter = opts.delimiter;
+
+ /* Check if we're past option values already. */
+ if (text > org_text && !isspace (text[-1]))
+ return;
+
+ const char *delim = strstr (text, delimiter);
+
+ /* If we're still not past the delimiter, complete the gdb
+ command. */
+ if (delim == nullptr || delim == text)
+ {
+ complete_nested_command_line (tracker, text);
+ return;
+ }
+
+ /* We're past the delimiter. What follows is a shell command, which
+ we don't know how to complete. */
+}
+
+static void
+list_command (const char *arg, int from_tty)
{
struct symbol *sym;
- char *arg1;
+ const char *arg1;
int no_end = 1;
int dummy_end = 0;
int dummy_beg = 0;
int linenum_beg = 0;
- char *p;
+ const char *p;
/* Pull in the current default source line if necessary. */
if (arg == NULL || ((arg[0] == '+' || arg[0] == '-') && arg[1] == '\0'))
&& get_lines_to_list () == 1 && first > 1)
first -= 1;
- print_source_lines (cursal.symtab, first,
- first + get_lines_to_list (), 0);
+ print_source_lines (cursal.symtab, source_lines_range (first), 0);
}
/* "l" or "l +" lists next ten lines. */
else if (arg == NULL || arg[0] == '+')
- print_source_lines (cursal.symtab, cursal.line,
- cursal.line + get_lines_to_list (), 0);
+ print_source_lines (cursal.symtab,
+ source_lines_range (cursal.line), 0);
/* "l -" lists previous ten lines, the ones before the ten just
listed. */
if (get_first_line_listed () == 1)
error (_("Already at the start of %s."),
symtab_to_filename_for_display (cursal.symtab));
- print_source_lines (cursal.symtab,
- std::max (get_first_line_listed ()
- - get_lines_to_list (), 1),
- get_first_line_listed (), 0);
+ source_lines_range range (get_first_line_listed (),
+ source_lines_range::BACKWARD);
+ print_source_lines (cursal.symtab, range, 0);
}
return;
turn it into the no-arg variant. */
if (from_tty)
- *arg = 0;
+ set_repeat_arguments ("");
if (dummy_beg && sal_end.symtab == 0)
error (_("No default source file yet. Do \"help list\"."));
if (dummy_beg)
- print_source_lines (sal_end.symtab,
- std::max (sal_end.line - (get_lines_to_list () - 1), 1),
- sal_end.line + 1, 0);
+ {
+ source_lines_range range (sal_end.line + 1,
+ source_lines_range::BACKWARD);
+ print_source_lines (sal_end.symtab, range, 0);
+ }
else if (sal.symtab == 0)
error (_("No default source file yet. Do \"help list\"."));
else if (no_end)
first_line = 1;
if (sals.size () > 1)
print_sal_location (sal);
- print_source_lines (sal.symtab,
- first_line,
- first_line + get_lines_to_list (),
- 0);
+ print_source_lines (sal.symtab, source_lines_range (first_line), 0);
}
}
+ else if (dummy_end)
+ print_source_lines (sal.symtab, source_lines_range (sal.line), 0);
else
- print_source_lines (sal.symtab, sal.line,
- (dummy_end
- ? sal.line + get_lines_to_list ()
- : sal_end.line + 1),
+ print_source_lines (sal.symtab,
+ source_lines_range (sal.line, (sal_end.line + 1)),
0);
}
Perform the disassembly.
NAME is the name of the function if known, or NULL.
[LOW,HIGH) are the range of addresses to disassemble.
+ BLOCK is the block to disassemble; it needs to be provided
+ when non-contiguous blocks are disassembled; otherwise
+ it can be NULL.
MIXED is non-zero to print source with the assembler. */
static void
print_disassembly (struct gdbarch *gdbarch, const char *name,
CORE_ADDR low, CORE_ADDR high,
+ const struct block *block,
gdb_disassembly_flags flags)
{
#if defined(TUI)
{
printf_filtered ("Dump of assembler code ");
if (name != NULL)
- printf_filtered ("for function %s:\n", name);
- else
- printf_filtered ("from %s to %s:\n",
- paddress (gdbarch, low), paddress (gdbarch, high));
-
- /* Dump the specified range. */
- gdb_disassembly (gdbarch, current_uiout, flags, -1, low, high);
+ printf_filtered ("for function %s:\n", name);
+ if (block == nullptr || BLOCK_CONTIGUOUS_P (block))
+ {
+ if (name == NULL)
+ printf_filtered ("from %s to %s:\n",
+ paddress (gdbarch, low), paddress (gdbarch, high));
+ /* Dump the specified range. */
+ gdb_disassembly (gdbarch, current_uiout, flags, -1, low, high);
+ }
+ else
+ {
+ for (int i = 0; i < BLOCK_NRANGES (block); i++)
+ {
+ CORE_ADDR range_low = BLOCK_RANGE_START (block, i);
+ CORE_ADDR range_high = BLOCK_RANGE_END (block, i);
+ printf_filtered (_("Address range %s to %s:\n"),
+ paddress (gdbarch, range_low),
+ paddress (gdbarch, range_high));
+ gdb_disassembly (gdbarch, current_uiout, flags, -1,
+ range_low, range_high);
+ }
+ }
printf_filtered ("End of assembler dump.\n");
- gdb_flush (gdb_stdout);
}
#if defined(TUI)
else
struct gdbarch *gdbarch;
CORE_ADDR low, high, pc;
const char *name;
+ const struct block *block;
frame = get_selected_frame (_("No frame selected."));
gdbarch = get_frame_arch (frame);
pc = get_frame_address_in_block (frame);
- if (find_pc_partial_function (pc, &name, &low, &high) == 0)
+ if (find_pc_partial_function (pc, &name, &low, &high, &block) == 0)
error (_("No function contains program counter for selected frame."));
#if defined(TUI)
/* NOTE: cagney/2003-02-13 The `tui_active' was previously
#endif
low += gdbarch_deprecated_function_start_offset (gdbarch);
- print_disassembly (gdbarch, name, low, high, flags);
+ print_disassembly (gdbarch, name, low, high, block, flags);
}
/* Dump a specified section of assembly code.
2) File names and contents for all relevant source files are displayed. */
static void
-disassemble_command (char *arg, int from_tty)
+disassemble_command (const char *arg, int from_tty)
{
struct gdbarch *gdbarch = get_current_arch ();
CORE_ADDR low, high;
CORE_ADDR pc;
gdb_disassembly_flags flags;
const char *p;
+ const struct block *block = nullptr;
p = arg;
name = NULL;
if (p[0] == '\0')
{
/* One argument. */
- if (find_pc_partial_function (pc, &name, &low, &high) == 0)
+ if (find_pc_partial_function (pc, &name, &low, &high, &block) == 0)
error (_("No function contains specified address."));
#if defined(TUI)
/* NOTE: cagney/2003-02-13 The `tui_active' was previously
high += low;
}
- print_disassembly (gdbarch, name, low, high, flags);
+ print_disassembly (gdbarch, name, low, high, block, flags);
}
static void
-make_command (char *arg, int from_tty)
+make_command (const char *arg, int from_tty)
{
if (arg == 0)
shell_escape ("make", from_tty);
}
static void
-show_user (char *args, int from_tty)
+show_user (const char *args, int from_tty)
{
struct cmd_list_element *c;
extern struct cmd_list_element *cmdlist;
/* Search through names of commands and documentations for a certain
regular expression. */
-static void
-apropos_command (char *searchstr, int from_tty)
+static void
+apropos_command (const char *arg, int from_tty)
{
- if (searchstr == NULL)
+ bool verbose = arg && check_for_argument (&arg, "-v", 2);
+
+ if (arg == NULL || *arg == '\0')
error (_("REGEXP string is empty"));
- compiled_regex pattern (searchstr, REG_ICASE,
+ compiled_regex pattern (arg, REG_ICASE,
_("Error in regular expression"));
- apropos_cmd (gdb_stdout, cmdlist, pattern, "");
+ apropos_cmd (gdb_stdout, cmdlist, verbose, pattern, "");
}
/* Subroutine of alias_command to simplify it.
}
/* Subroutine of alias_command to simplify it.
- Return TRUE if COMMAND exists, unambiguously. Otherwise FALSE. */
+ Return true if COMMAND exists, unambiguously. Otherwise false. */
-static int
+static bool
valid_command_p (const char *command)
{
struct cmd_list_element *c;
c = lookup_cmd_1 (& command, cmdlist, NULL, 1);
if (c == NULL || c == (struct cmd_list_element *) -1)
- return FALSE;
+ return false;
/* This is the slightly tricky part.
lookup_cmd_1 will return a pointer to the last part of COMMAND
/* Make an alias of an existing command. */
static void
-alias_command (char *args, int from_tty)
+alias_command (const char *args, int from_tty)
{
int i, alias_argc, command_argc;
int abbrev_flag = 0;
- char *equals;
+ const char *equals;
const char *alias, *command;
if (args == NULL || strchr (args, '=') == NULL)
Example: alias spe = set print elements
Otherwise ALIAS and COMMAND must have the same number of words,
- and every word except the last must match; and the last word of
- ALIAS is made an alias of the last word of COMMAND.
+ and every word except the last must identify the same prefix command;
+ and the last word of ALIAS is made an alias of the last word of COMMAND.
Example: alias set print elms = set pr elem
Note that unambiguous abbreviations are allowed. */
error (_("Mismatched command length between ALIAS and COMMAND."));
/* Create copies of ALIAS and COMMAND without the last word,
- and use that to verify the leading elements match. */
+ and use that to verify the leading elements give the same
+ prefix command. */
std::string alias_prefix_string (argv_to_string (alias_argv,
alias_argc - 1));
- std::string command_prefix_string (argv_to_string (alias_argv,
+ std::string command_prefix_string (argv_to_string (command_argv.get (),
command_argc - 1));
alias_prefix = alias_prefix_string.c_str ();
command_prefix = command_prefix_string.c_str ();
}
static void
-set_debug (char *arg, int from_tty)
+set_debug (const char *arg, int from_tty)
{
printf_unfiltered (_("\"set debug\" must be followed by "
"the name of a debug subcommand.\n"));
}
static void
-show_debug (char *args, int from_tty)
+show_debug (const char *args, int from_tty)
{
cmd_show_list (showdebuglist, from_tty, "");
}
/* Define the classes of commands.
They will appear in the help list in alphabetical order. */
- add_cmd ("internals", class_maintenance, NULL, _("\
+ add_cmd ("internals", class_maintenance, _("\
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, NULL, _("Obscure features."), &cmdlist);
- add_cmd ("aliases", class_alias, NULL,
+ add_cmd ("obscure", class_obscure, _("Obscure features."), &cmdlist);
+ add_cmd ("aliases", class_alias,
_("Aliases of other commands."), &cmdlist);
- add_cmd ("user-defined", class_user, NULL, _("\
+ add_cmd ("user-defined", class_user, _("\
User-defined commands.\n\
The commands in this class are those defined by the user.\n\
Use the \"define\" command to define a command."), &cmdlist);
- add_cmd ("support", class_support, NULL, _("Support facilities."), &cmdlist);
+ add_cmd ("support", class_support, _("Support facilities."), &cmdlist);
if (!dbx_commands)
- add_cmd ("status", class_info, NULL, _("Status inquiries."), &cmdlist);
- add_cmd ("files", class_files, NULL, _("Specifying and examining files."),
+ add_cmd ("status", class_info, _("Status inquiries."), &cmdlist);
+ add_cmd ("files", class_files, _("Specifying and examining files."),
&cmdlist);
- add_cmd ("breakpoints", class_breakpoint, NULL,
+ add_cmd ("breakpoints", class_breakpoint,
_("Making program stop at certain points."), &cmdlist);
- add_cmd ("data", class_vars, NULL, _("Examining data."), &cmdlist);
- add_cmd ("stack", class_stack, NULL, _("\
+ add_cmd ("data", class_vars, _("Examining data."), &cmdlist);
+ add_cmd ("stack", class_stack, _("\
Examining the stack.\n\
The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
counting from zero for the innermost (currently executing) frame.\n\n\
When the program being debugged stops, gdb selects the innermost frame.\n\
The commands below can be used to select other frames by number or address."),
&cmdlist);
- add_cmd ("running", class_run, NULL, _("Running the program."), &cmdlist);
+ add_cmd ("running", class_run, _("Running the program."), &cmdlist);
/* Define general commands. */
Print working directory. This is used for your program as well."));
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."), &cmdlist);
+Set working directory to DIR for debugger.\n\
+The debugger's current working directory specifies where scripts and other\n\
+files that can be loaded by GDB are located.\n\
+In order to change the inferior's current working directory, the recommended\n\
+way is to use the \"set cwd\" command."), &cmdlist);
set_cmd_completer (c, filename_completer);
add_com ("echo", class_support, echo_command, _("\
/* Another way to get at the same thing. */
add_info ("set", show_command, _("Show all GDB settings."));
+ c = add_com ("with", class_vars, with_command, _("\
+Temporarily set SETTING to VALUE, run COMMAND, and restore SETTING.\n\
+Usage: with SETTING [VALUE] [-- COMMAND]\n\
+Usage: w SETTING [VALUE] [-- COMMAND]\n\
+With no COMMAND, repeats the last executed command.\n\
+\n\
+SETTING is any setting you can change with the \"set\" subcommands.\n\
+E.g.:\n\
+ with language pascal -- print obj\n\
+ with print elements unlimited -- print obj\n\
+\n\
+You can change multiple settings using nested with, and use\n\
+abbreviations for commands and/or values. E.g.:\n\
+ w la p -- w p el u -- p obj"));
+ set_cmd_completer_handle_brkchars (c, with_command_completer);
+ add_com_alias ("w", "with", class_vars, 1);
+
add_cmd ("commands", no_set_class, show_commands, _("\
Show the history of commands you typed.\n\
You can supply a command number to start with, or a `+' to start after\n\
With no arguments, run an inferior shell."));
set_cmd_completer (c, filename_completer);
+ add_com_alias ("!", "shell", class_support, 0);
+
c = add_com ("edit", class_files, edit_command, _("\
Edit specified file or function.\n\
With no argument, edits file containing most recent line listed.\n\
c->completer = location_completer;
+ c = add_com ("pipe", class_support, pipe_command, _("\
+Send the output of a gdb command to a shell command.\n\
+Usage: | [COMMAND] | SHELL_COMMAND\n\
+Usage: | -d DELIM COMMAND DELIM SHELL_COMMAND\n\
+Usage: pipe [COMMAND] | SHELL_COMMAND\n\
+Usage: pipe -d DELIM COMMAND DELIM SHELL_COMMAND\n\
+\n\
+Executes COMMAND and sends its output to SHELL_COMMAND.\n\
+\n\
+The -d option indicates to use the string DELIM to separate COMMAND\n\
+from SHELL_COMMAND, in alternative to |. This is useful in\n\
+case COMMAND contains a | character.\n\
+\n\
+With no COMMAND, repeat the last executed command\n\
+and send its output to SHELL_COMMAND."));
+ set_cmd_completer_handle_brkchars (c, pipe_command_completer);
+ add_com_alias ("|", "pipe", class_support, 0);
+
add_com ("list", class_files, list_command, _("\
List specified function or line.\n\
With no argument, lists ten more lines after or around previous listing.\n\
you must type \"disassemble 'foo.c'::bar\" and not \"disassemble foo.c:bar\"."));
set_cmd_completer (c, location_completer);
- add_com_alias ("!", "shell", class_support, 0);
-
c = add_com ("make", class_support, make_command, _("\
Run the ``make'' program using the rest of the line as arguments."));
set_cmd_completer (c, filename_completer);
Show definitions of non-python/scheme user defined commands.\n\
Argument is the name of the user defined command.\n\
With no argument, show definitions of all user defined commands."), &showlist);
- add_com ("apropos", class_support, apropos_command,
- _("Search for commands matching a REGEXP"));
+ add_com ("apropos", class_support, apropos_command, _("\
+Search for commands matching a REGEXP\n\
+Usage: apropos [-v] REGEXP\n\
+Flag -v indicates to produce a verbose output, showing full documentation\n\
+of the matching commands."));
add_setshow_uinteger_cmd ("max-user-call-depth", no_class,
&max_user_call_depth, _("\
projects / deliverable / binutils-gdb.git / blobdiff