/* Memory-access and commands for "inferior" process, for GDB.
- Copyright (C) 1986-2017 Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "arch-utils.h"
-#include <signal.h>
#include "symtab.h"
#include "gdbtypes.h"
#include "frame.h"
#include "inferior.h"
#include "infrun.h"
-#include "environ.h"
+#include "gdbsupport/environ.h"
#include "value.h"
#include "gdbcmd.h"
#include "symfile.h"
#include "objfiles.h"
#include "completer.h"
#include "ui-out.h"
-#include "event-top.h"
-#include "parser-defs.h"
#include "regcache.h"
#include "reggroups.h"
#include "block.h"
#include "solib.h"
#include <ctype.h>
-#include "observer.h"
+#include "observable.h"
#include "target-descriptions.h"
#include "user-regs.h"
-#include "cli/cli-decode.h"
#include "gdbthread.h"
#include "valprint.h"
#include "inline-frame.h"
#include "inf-loop.h"
#include "continuations.h"
#include "linespec.h"
-#include "cli/cli-utils.h"
-#include "infcall.h"
#include "thread-fsm.h"
#include "top.h"
#include "interps.h"
+#include "skip.h"
+#include "gdbsupport/gdb_optional.h"
+#include "source.h"
+#include "cli/cli-style.h"
/* Local functions: */
-static void nofp_registers_info (char *, int);
-
static void until_next_command (int);
-static void until_command (char *, int);
-
-static void path_info (char *, int);
-
-static void path_command (char *, int);
-
-static void unset_command (char *, int);
-
-static void float_info (char *, int);
-
-static void disconnect_command (char *, int);
-
-static void unset_environment_command (char *, int);
-
-static void set_environment_command (char *, int);
-
-static void environment_info (char *, int);
-
-static void program_info (char *, int);
-
-static void finish_command (char *, int);
-
-static void signal_command (char *, int);
-
-static void jump_command (char *, int);
-
-static void step_1 (int, int, char *);
-
-static void next_command (char *, int);
-
-static void step_command (char *, int);
-
-static void run_command (char *, int);
-
-void _initialize_infcmd (void);
+static void step_1 (int, int, const char *);
#define ERROR_NO_INFERIOR \
if (!target_has_execution) error (_("The program is not being run."));
static char *inferior_args_scratch;
+/* Scratch area where the new cwd will be stored by 'set cwd'. */
+
+static char *inferior_cwd_scratch;
+
/* Scratch area where 'set inferior-tty' will store user-provided value.
We'll immediate copy it into per-inferior storage. */
ptid_t inferior_ptid;
-/* Address at which inferior stopped. */
-
-CORE_ADDR stop_pc;
-
/* Nonzero if stopped due to completion of a stack dummy routine. */
enum stop_stack_kind stop_stack_dummy;
int stopped_by_random_signal;
-/* See inferior.h. */
-
-int startup_with_shell = 1;
-
\f
/* Accessor routines. */
}
static void
-set_inferior_tty_command (char *args, int from_tty,
+set_inferior_tty_command (const char *args, int from_tty,
struct cmd_list_element *c)
{
/* CLI has assigned the user-provided value to inferior_io_terminal_scratch.
"is \"%s\".\n"), inferior_io_terminal);
}
-char *
+const char *
get_inferior_args (void)
{
if (current_inferior ()->argc != 0)
{
- char *n;
-
- n = construct_inferior_arguments (current_inferior ()->argc,
- current_inferior ()->argv);
- set_inferior_args (n);
- xfree (n);
+ gdb::array_view<char * const> args (current_inferior ()->argv,
+ current_inferior ()->argc);
+ std::string n = construct_inferior_arguments (args);
+ set_inferior_args (n.c_str ());
}
if (current_inferior ()->args == NULL)
NEWARGS is not transferred. */
void
-set_inferior_args (char *newargs)
+set_inferior_args (const char *newargs)
{
xfree (current_inferior ()->args);
current_inferior ()->args = newargs ? xstrdup (newargs) : NULL;
/* Notice when `set args' is run. */
static void
-set_args_command (char *args, int from_tty, struct cmd_list_element *c)
+set_args_command (const char *args, int from_tty, struct cmd_list_element *c)
{
/* CLI has assigned the user-provided value to inferior_args_scratch.
Now route it to current inferior. */
deprecated_show_value_hack (file, from_tty, c, get_inferior_args ());
}
-\f
-/* Compute command-line string given argument vector. This does the
- same shell processing as fork_inferior. */
-
-char *
-construct_inferior_arguments (int argc, char **argv)
-{
- char *result;
-
- if (startup_with_shell)
- {
-#ifdef __MINGW32__
- /* This holds all the characters considered special to the
- Windows shells. */
- static const char special[] = "\"!&*|[]{}<>?`~^=;, \t\n";
- static const char quote = '"';
-#else
- /* This holds all the characters considered special to the
- typical Unix shells. We include `^' because the SunOS
- /bin/sh treats it as a synonym for `|'. */
- static const char special[] = "\"!#$&*()\\|[]{}<>?'`~^; \t\n";
- static const char quote = '\'';
-#endif
- int i;
- int length = 0;
- char *out, *cp;
-
- /* We over-compute the size. It shouldn't matter. */
- for (i = 0; i < argc; ++i)
- length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0');
-
- result = (char *) xmalloc (length);
- out = result;
-
- for (i = 0; i < argc; ++i)
- {
- if (i > 0)
- *out++ = ' ';
+/* See gdbsupport/common-inferior.h. */
- /* Need to handle empty arguments specially. */
- if (argv[i][0] == '\0')
- {
- *out++ = quote;
- *out++ = quote;
- }
- else
- {
-#ifdef __MINGW32__
- int quoted = 0;
+void
+set_inferior_cwd (const char *cwd)
+{
+ struct inferior *inf = current_inferior ();
- if (strpbrk (argv[i], special))
- {
- quoted = 1;
- *out++ = quote;
- }
-#endif
- for (cp = argv[i]; *cp; ++cp)
- {
- if (*cp == '\n')
- {
- /* A newline cannot be quoted with a backslash (it
- just disappears), only by putting it inside
- quotes. */
- *out++ = quote;
- *out++ = '\n';
- *out++ = quote;
- }
- else
- {
-#ifdef __MINGW32__
- if (*cp == quote)
-#else
- if (strchr (special, *cp) != NULL)
-#endif
- *out++ = '\\';
- *out++ = *cp;
- }
- }
-#ifdef __MINGW32__
- if (quoted)
- *out++ = quote;
-#endif
- }
- }
- *out = '\0';
- }
+ gdb_assert (inf != NULL);
+
+ if (cwd == NULL)
+ inf->cwd.reset ();
else
- {
- /* In this case we can't handle arguments that contain spaces,
- tabs, or newlines -- see breakup_args(). */
- int i;
- int length = 0;
+ inf->cwd.reset (xstrdup (cwd));
+}
- for (i = 0; i < argc; ++i)
- {
- char *cp = strchr (argv[i], ' ');
- if (cp == NULL)
- cp = strchr (argv[i], '\t');
- if (cp == NULL)
- cp = strchr (argv[i], '\n');
- if (cp != NULL)
- error (_("can't handle command-line "
- "argument containing whitespace"));
- length += strlen (argv[i]) + 1;
- }
+/* See gdbsupport/common-inferior.h. */
- result = (char *) xmalloc (length);
- result[0] = '\0';
- for (i = 0; i < argc; ++i)
- {
- if (i > 0)
- strcat (result, " ");
- strcat (result, argv[i]);
- }
- }
+const char *
+get_inferior_cwd ()
+{
+ return current_inferior ()->cwd.get ();
+}
+
+/* Handle the 'set cwd' command. */
- return result;
+static void
+set_cwd_command (const char *args, int from_tty, struct cmd_list_element *c)
+{
+ if (*inferior_cwd_scratch == '\0')
+ set_inferior_cwd (NULL);
+ else
+ set_inferior_cwd (inferior_cwd_scratch);
}
-\f
+
+/* Handle the 'show cwd' command. */
+
+static void
+show_cwd_command (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ const char *cwd = get_inferior_cwd ();
+
+ if (cwd == NULL)
+ fprintf_filtered (gdb_stdout,
+ _("\
+You have not set the inferior's current working directory.\n\
+The inferior will inherit GDB's cwd if native debugging, or the remote\n\
+server's cwd if remote debugging.\n"));
+ else
+ fprintf_filtered (gdb_stdout,
+ _("Current working directory that will be used "
+ "when starting the inferior is \"%s\".\n"), cwd);
+}
+
/* This function strips the '&' character (indicating background
execution) that is added as *the last* of the arguments ARGS of a
NULL is returned. *BG_CHAR_P is an output boolean that indicates
whether the '&' character was found. */
-static char *
+static gdb::unique_xmalloc_ptr<char>
strip_bg_char (const char *args, int *bg_char_p)
{
const char *p;
*bg_char_p = 1;
if (p != args)
- return savestring (args, p - args);
+ return gdb::unique_xmalloc_ptr<char>
+ (savestring (args, p - args));
else
- return NULL;
+ return gdb::unique_xmalloc_ptr<char> (nullptr);
}
*bg_char_p = 0;
- return xstrdup (args);
+ return make_unique_xstrdup (args);
}
/* Common actions to take after creating any sort of inferior, by any
{
/* Be sure we own the terminal in case write operations are performed. */
- target_terminal_ours_for_output ();
+ target_terminal::ours_for_output ();
/* If the target hasn't taken care of this already, do it now.
Targets which need to access registers during to_open,
/* Now that we know the register layout, retrieve current PC. But
if the PC is unavailable (e.g., we're opening a core file with
missing registers info), ignore it. */
- stop_pc = 0;
- TRY
+ thread_info *thr = inferior_thread ();
+
+ thr->suspend.stop_pc = 0;
+ try
{
- stop_pc = regcache_read_pc (get_current_regcache ());
+ regcache *rc = get_thread_regcache (thr);
+ thr->suspend.stop_pc = regcache_read_pc (rc);
}
- CATCH (ex, RETURN_MASK_ERROR)
+ catch (const gdb_exception_error &ex)
{
if (ex.error != NOT_AVAILABLE_ERROR)
- throw_exception (ex);
+ throw;
}
- END_CATCH
if (exec_bfd)
{
if the now pushed target supports hardware watchpoints. */
breakpoint_re_set ();
- observer_notify_inferior_created (target, from_tty);
+ gdb::observers::inferior_created.notify (target, from_tty);
}
/* Kill the inferior if already running. This function is designed
static void
kill_if_already_running (int from_tty)
{
- if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution)
+ if (inferior_ptid != null_ptid && target_has_execution)
{
/* Bail out before killing the program if we will not be able to
restart it. */
{
/* If we get a request for running in the bg but the target
doesn't support it, error out. */
- if (background && !target->to_can_async_p (target))
+ if (background && !target->can_async_p ())
error (_("Asynchronous execution not supported on this target."));
if (!background)
}
}
-/* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert
- a temporary breakpoint at the begining of the main program before
- running the program. */
+/* Determine how the new inferior will behave. */
+
+enum run_how
+ {
+ /* Run program without any explicit stop during startup. */
+ RUN_NORMAL,
+
+ /* Stop at the beginning of the program's main function. */
+ RUN_STOP_AT_MAIN,
+
+ /* Stop at the first instruction of the program. */
+ RUN_STOP_AT_FIRST_INSN
+ };
+
+/* Implement the "run" command. Force a stop during program start if
+ requested by RUN_HOW. */
static void
-run_command_1 (char *args, int from_tty, int tbreak_at_main)
+run_command_1 (const char *args, int from_tty, enum run_how run_how)
{
const char *exec_file;
- struct cleanup *old_chain;
- ptid_t ptid;
struct ui_out *uiout = current_uiout;
struct target_ops *run_target;
int async_exec;
- struct cleanup *args_chain;
dont_repeat ();
reopen_exec_file ();
reread_symbols ();
- args = strip_bg_char (args, &async_exec);
- args_chain = make_cleanup (xfree, args);
+ gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (args, &async_exec);
+ args = stripped.get ();
/* Do validation and preparation before possibly changing anything
in the inferior. */
prepare_execution_command (run_target, async_exec);
- if (non_stop && !run_target->to_supports_non_stop (run_target))
+ if (non_stop && !run_target->supports_non_stop ())
error (_("The target does not support running in non-stop mode."));
/* Done. Can now set breakpoints, change inferior args, etc. */
- /* Insert the temporary breakpoint if a location was specified. */
- if (tbreak_at_main)
- tbreak_command (main_name (), 0);
+ /* Insert temporary breakpoint in main function if requested. */
+ if (run_how == RUN_STOP_AT_MAIN)
+ {
+ std::string arg = string_printf ("-qualified %s", main_name ());
+ tbreak_command (arg.c_str (), 0);
+ }
exec_file = get_exec_file (0);
uiout->flush ();
}
- /* Done with ARGS. */
- do_cleanups (args_chain);
-
/* We call get_inferior_args() because we might need to compute
the value now. */
- run_target->to_create_inferior (run_target, exec_file,
- std::string (get_inferior_args ()),
- environ_vector (current_inferior ()->environment),
- from_tty);
+ run_target->create_inferior (exec_file,
+ std::string (get_inferior_args ()),
+ current_inferior ()->environment.envp (),
+ from_tty);
/* to_create_inferior should push the target, so after this point we
shouldn't refer to run_target again. */
run_target = NULL;
events --- the frontend shouldn't see them as stopped. In
all-stop, always finish the state of all threads, as we may be
resuming more than just the new process. */
+ process_stratum_target *finish_target;
+ ptid_t finish_ptid;
if (non_stop)
- ptid = pid_to_ptid (ptid_get_pid (inferior_ptid));
+ {
+ finish_target = current_inferior ()->process_target ();
+ finish_ptid = ptid_t (current_inferior ()->pid);
+ }
else
- ptid = minus_one_ptid;
- old_chain = make_cleanup (finish_thread_state_cleanup, &ptid);
+ {
+ finish_target = nullptr;
+ finish_ptid = minus_one_ptid;
+ }
+ scoped_finish_thread_state finish_state (finish_target, finish_ptid);
/* Pass zero for FROM_TTY, because at this point the "run" command
has done its thing; now we are setting up the running program. */
- post_create_inferior (¤t_target, 0);
+ post_create_inferior (current_top_target (), 0);
+
+ /* Queue a pending event so that the program stops immediately. */
+ if (run_how == RUN_STOP_AT_FIRST_INSN)
+ {
+ thread_info *thr = inferior_thread ();
+ thr->suspend.waitstatus_pending_p = 1;
+ thr->suspend.waitstatus.kind = TARGET_WAITKIND_STOPPED;
+ thr->suspend.waitstatus.value.sig = GDB_SIGNAL_0;
+ }
/* Start the target running. Do not use -1 continuation as it would skip
breakpoint right at the entry point. */
/* Since there was no error, there's no need to finish the thread
states here. */
- discard_cleanups (old_chain);
+ finish_state.release ();
}
static void
-run_command (char *args, int from_tty)
+run_command (const char *args, int from_tty)
{
- run_command_1 (args, from_tty, 0);
+ run_command_1 (args, from_tty, RUN_NORMAL);
}
/* Start the execution of the program up until the beginning of the main
program. */
static void
-start_command (char *args, int from_tty)
+start_command (const char *args, int from_tty)
{
/* Some languages such as Ada need to search inside the program
minimal symbols for the location where to put the temporary
error (_("No symbol table loaded. Use the \"file\" command."));
/* Run the program until reaching the main procedure... */
- run_command_1 (args, from_tty, 1);
+ run_command_1 (args, from_tty, RUN_STOP_AT_MAIN);
+}
+
+/* Start the execution of the program stopping at the first
+ instruction. */
+
+static void
+starti_command (const char *args, int from_tty)
+{
+ run_command_1 (args, from_tty, RUN_STOP_AT_FIRST_INSN);
}
static int
much. If/when GDB gains a way to tell the target `hold this
thread stopped until I say otherwise', then we can optimize
this. */
- if (!is_stopped (thread->ptid))
+ if (thread->state != THREAD_STOPPED)
+ return 0;
+
+ if (!thread->inf->has_execution ())
return 0;
- switch_to_thread (thread->ptid);
+ switch_to_thread (thread);
clear_proceed_status (0);
proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT);
return 0;
static void
ensure_valid_thread (void)
{
- if (ptid_equal (inferior_ptid, null_ptid)
- || is_exited (inferior_ptid))
+ if (inferior_ptid == null_ptid
+ || inferior_thread ()->state == THREAD_EXITED)
error (_("Cannot execute this command without a live selected thread."));
}
static void
ensure_not_running (void)
{
- if (is_running (inferior_ptid))
+ if (inferior_thread ()->state == THREAD_RUNNING)
error_is_running ();
}
{
/* Don't error out if the current thread is running, because
there may be other stopped threads. */
- struct cleanup *old_chain;
- /* Backup current thread and selected frame. */
- old_chain = make_cleanup_restore_current_thread ();
+ /* Backup current thread and selected frame and restore on scope
+ exit. */
+ scoped_restore_current_thread restore_thread;
iterate_over_threads (proceed_thread_callback, NULL);
Continuing.
<no thread was resumed, but the inferior now owns the terminal>
*/
- target_terminal_inferior ();
+ target_terminal::inferior ();
}
-
- /* Restore selected ptid. */
- do_cleanups (old_chain);
}
else
{
/* continue [-a] [proceed-count] [&] */
static void
-continue_command (char *args, int from_tty)
+continue_command (const char *args, int from_tty)
{
int async_exec;
- int all_threads = 0;
- struct cleanup *args_chain;
+ bool all_threads_p = false;
ERROR_NO_INFERIOR;
/* Find out whether we must run in the background. */
- args = strip_bg_char (args, &async_exec);
- args_chain = make_cleanup (xfree, args);
+ gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (args, &async_exec);
+ args = stripped.get ();
if (args != NULL)
{
if (startswith (args, "-a"))
{
- all_threads = 1;
+ all_threads_p = true;
args += sizeof ("-a") - 1;
if (*args == '\0')
args = NULL;
}
}
- if (!non_stop && all_threads)
+ if (!non_stop && all_threads_p)
error (_("`-a' is meaningless in all-stop mode."));
- if (args != NULL && all_threads)
+ if (args != NULL && all_threads_p)
error (_("Can't resume all threads and specify "
"proceed count simultaneously."));
struct thread_info *tp;
if (non_stop)
- tp = find_thread_ptid (inferior_ptid);
+ tp = inferior_thread ();
else
{
+ process_stratum_target *last_target;
ptid_t last_ptid;
- struct target_waitstatus ws;
- get_last_target_status (&last_ptid, &ws);
- tp = find_thread_ptid (last_ptid);
+ get_last_target_status (&last_target, &last_ptid, nullptr);
+ tp = find_thread_ptid (last_target, last_ptid);
}
if (tp != NULL)
bs = tp->control.stop_bpstat;
}
}
- /* Done with ARGS. */
- do_cleanups (args_chain);
-
ERROR_NO_INFERIOR;
ensure_not_tfind_mode ();
- if (!non_stop || !all_threads)
+ if (!non_stop || !all_threads_p)
{
ensure_valid_thread ();
ensure_not_running ();
}
- prepare_execution_command (¤t_target, async_exec);
+ prepare_execution_command (current_top_target (), async_exec);
if (from_tty)
printf_filtered (_("Continuing.\n"));
- continue_1 (all_threads);
+ continue_1 (all_threads_p);
}
\f
-/* Record the starting point of a "step" or "next" command. */
+/* Record in TP the starting point of a "step" or "next" command. */
static void
-set_step_frame (void)
+set_step_frame (thread_info *tp)
{
- struct symtab_and_line sal;
- CORE_ADDR pc;
- struct frame_info *frame = get_current_frame ();
- struct thread_info *tp = inferior_thread ();
+ /* This can be removed once this function no longer implicitly relies on the
+ inferior_ptid value. */
+ gdb_assert (inferior_ptid == tp->ptid);
- find_frame_sal (frame, &sal);
- set_step_info (frame, sal);
- pc = get_frame_pc (frame);
+ frame_info *frame = get_current_frame ();
+
+ symtab_and_line sal = find_frame_sal (frame);
+ set_step_info (tp, frame, sal);
+
+ CORE_ADDR pc = get_frame_pc (frame);
tp->control.step_start_function = find_pc_function (pc);
}
/* Step until outside of current statement. */
static void
-step_command (char *count_string, int from_tty)
+step_command (const char *count_string, int from_tty)
{
step_1 (0, 0, count_string);
}
/* Likewise, but skip over subroutine calls as if single instructions. */
static void
-next_command (char *count_string, int from_tty)
+next_command (const char *count_string, int from_tty)
{
step_1 (1, 0, count_string);
}
/* Likewise, but step only one instruction. */
static void
-stepi_command (char *count_string, int from_tty)
+stepi_command (const char *count_string, int from_tty)
{
step_1 (0, 1, count_string);
}
static void
-nexti_command (char *count_string, int from_tty)
+nexti_command (const char *count_string, int from_tty)
{
step_1 (1, 1, count_string);
}
-void
-delete_longjmp_breakpoint_cleanup (void *arg)
-{
- int thread = * (int *) arg;
- delete_longjmp_breakpoint (thread);
-}
-
/* Data for the FSM that manages the step/next/stepi/nexti
commands. */
-struct step_command_fsm
+struct step_command_fsm : public thread_fsm
{
- /* The base class. */
- struct thread_fsm thread_fsm;
-
/* How many steps left in a "step N"-like command. */
int count;
/* If true, this is a stepi/nexti, otherwise a step/step. */
int single_inst;
-};
-static void step_command_fsm_clean_up (struct thread_fsm *self,
- struct thread_info *thread);
-static int step_command_fsm_should_stop (struct thread_fsm *self,
- struct thread_info *thread);
-static enum async_reply_reason
- step_command_fsm_async_reply_reason (struct thread_fsm *self);
+ explicit step_command_fsm (struct interp *cmd_interp)
+ : thread_fsm (cmd_interp)
+ {
+ }
-/* step_command_fsm's vtable. */
-
-static struct thread_fsm_ops step_command_fsm_ops =
-{
- NULL,
- step_command_fsm_clean_up,
- step_command_fsm_should_stop,
- NULL, /* return_value */
- step_command_fsm_async_reply_reason,
+ void clean_up (struct thread_info *thread) override;
+ bool should_stop (struct thread_info *thread) override;
+ enum async_reply_reason do_async_reply_reason () override;
};
-/* Allocate a new step_command_fsm. */
-
-static struct step_command_fsm *
-new_step_command_fsm (struct interp *cmd_interp)
-{
- struct step_command_fsm *sm;
-
- sm = XCNEW (struct step_command_fsm);
- thread_fsm_ctor (&sm->thread_fsm, &step_command_fsm_ops, cmd_interp);
-
- return sm;
-}
-
/* Prepare for a step/next/etc. command. Any target resource
allocated here is undone in the FSM's clean_up method. */
thread->control.stepping_command = 1;
}
-static int prepare_one_step (struct step_command_fsm *sm);
+static int prepare_one_step (thread_info *, struct step_command_fsm *sm);
static void
-step_1 (int skip_subroutines, int single_inst, char *count_string)
+step_1 (int skip_subroutines, int single_inst, const char *count_string)
{
int count;
int async_exec;
- struct cleanup *args_chain;
struct thread_info *thr;
struct step_command_fsm *step_sm;
ensure_valid_thread ();
ensure_not_running ();
- count_string = strip_bg_char (count_string, &async_exec);
- args_chain = make_cleanup (xfree, count_string);
+ gdb::unique_xmalloc_ptr<char> stripped
+ = strip_bg_char (count_string, &async_exec);
+ count_string = stripped.get ();
- prepare_execution_command (¤t_target, async_exec);
+ prepare_execution_command (current_top_target (), async_exec);
count = count_string ? parse_and_eval_long (count_string) : 1;
- /* Done with ARGS. */
- do_cleanups (args_chain);
-
clear_proceed_status (1);
/* Setup the execution command state machine to handle all the COUNT
steps. */
thr = inferior_thread ();
- step_sm = new_step_command_fsm (command_interp ());
- thr->thread_fsm = &step_sm->thread_fsm;
+ step_sm = new step_command_fsm (command_interp ());
+ thr->thread_fsm = step_sm;
step_command_fsm_prepare (step_sm, skip_subroutines,
single_inst, count, thr);
loop. Let the continuation figure out how many other steps we
need to do, and handle them one at the time, through
step_once. */
- if (!prepare_one_step (step_sm))
+ if (!prepare_one_step (thr, step_sm))
proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT);
else
{
/* Stepped into an inline frame. Pretend that we've
stopped. */
- thread_fsm_clean_up (thr->thread_fsm, thr);
+ thr->thread_fsm->clean_up (thr);
proceeded = normal_stop ();
if (!proceeded)
inferior_event_handler (INF_EXEC_COMPLETE, NULL);
return control to the user. If count is > 1, returns false, as we
will need to keep going. */
-static int
-step_command_fsm_should_stop (struct thread_fsm *self, struct thread_info *tp)
+bool
+step_command_fsm::should_stop (struct thread_info *tp)
{
- struct step_command_fsm *sm = (struct step_command_fsm *) self;
-
if (tp->control.stop_step)
{
/* There are more steps to make, and we did stop due to
ending a stepping range. Do another step. */
- if (--sm->count > 0)
- return prepare_one_step (sm);
+ if (--count > 0)
+ return prepare_one_step (tp, this);
- thread_fsm_set_finished (self);
+ set_finished ();
}
- return 1;
+ return true;
}
/* Implementation of the 'clean_up' FSM method for stepping commands. */
-static void
-step_command_fsm_clean_up (struct thread_fsm *self, struct thread_info *thread)
+void
+step_command_fsm::clean_up (struct thread_info *thread)
{
- struct step_command_fsm *sm = (struct step_command_fsm *) self;
-
- if (!sm->single_inst || sm->skip_subroutines)
+ if (!single_inst || skip_subroutines)
delete_longjmp_breakpoint (thread->global_num);
}
/* Implementation of the 'async_reply_reason' FSM method for stepping
commands. */
-static enum async_reply_reason
-step_command_fsm_async_reply_reason (struct thread_fsm *self)
+enum async_reply_reason
+step_command_fsm::do_async_reply_reason ()
{
return EXEC_ASYNC_END_STEPPING_RANGE;
}
resumed. */
static int
-prepare_one_step (struct step_command_fsm *sm)
+prepare_one_step (thread_info *tp, struct step_command_fsm *sm)
{
+ /* This can be removed once this function no longer implicitly relies on the
+ inferior_ptid value. */
+ gdb_assert (inferior_ptid == tp->ptid);
+
if (sm->count > 0)
{
struct frame_info *frame = get_current_frame ();
- /* Don't assume THREAD is a valid thread id. It is set to -1 if
- the longjmp breakpoint was not required. Use the
- INFERIOR_PTID thread instead, which is the same thread when
- THREAD is set. */
- struct thread_info *tp = inferior_thread ();
-
- set_step_frame ();
+ set_step_frame (tp);
if (!sm->single_inst)
{
/* Step at an inlined function behaves like "down". */
if (!sm->skip_subroutines
- && inline_skipped_frames (inferior_ptid))
+ && inline_skipped_frames (tp))
{
ptid_t resume_ptid;
+ const char *fn = NULL;
+ symtab_and_line sal;
+ struct symbol *sym;
/* Pretend that we've ran. */
resume_ptid = user_visible_resume_ptid (1);
- set_running (resume_ptid, 1);
+ set_running (tp->inf->process_target (), resume_ptid, true);
- step_into_inline_frame (inferior_ptid);
- sm->count--;
- return prepare_one_step (sm);
+ step_into_inline_frame (tp);
+
+ frame = get_current_frame ();
+ sal = find_frame_sal (frame);
+ sym = get_frame_function (frame);
+
+ if (sym != NULL)
+ fn = sym->print_name ();
+
+ if (sal.line == 0
+ || !function_name_is_marked_for_skip (fn, sal))
+ {
+ sm->count--;
+ return prepare_one_step (tp, sm);
+ }
}
pc = get_frame_pc (frame);
&tp->control.step_range_end) == 0)
error (_("Cannot find bounds of current function"));
- target_terminal_ours_for_output ();
+ target_terminal::ours_for_output ();
printf_filtered (_("Single stepping until exit from function %s,"
"\nwhich has no line number information.\n"),
name);
}
/* Done. */
- thread_fsm_set_finished (&sm->thread_fsm);
+ sm->set_finished ();
return 1;
}
/* Continue program at specified address. */
static void
-jump_command (char *arg, int from_tty)
+jump_command (const char *arg, int from_tty)
{
struct gdbarch *gdbarch = get_current_arch ();
CORE_ADDR addr;
- struct symtabs_and_lines sals;
- struct symtab_and_line sal;
struct symbol *fn;
struct symbol *sfn;
int async_exec;
- struct cleanup *args_chain;
ERROR_NO_INFERIOR;
ensure_not_tfind_mode ();
ensure_not_running ();
/* Find out whether we must run in the background. */
- arg = strip_bg_char (arg, &async_exec);
- args_chain = make_cleanup (xfree, arg);
+ gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec);
+ arg = stripped.get ();
- prepare_execution_command (¤t_target, async_exec);
+ prepare_execution_command (current_top_target (), async_exec);
if (!arg)
error_no_arg (_("starting address"));
- sals = decode_line_with_last_displayed (arg, DECODE_LINE_FUNFIRSTLINE);
- if (sals.nelts != 1)
- {
- error (_("Unreasonable jump request"));
- }
-
- sal = sals.sals[0];
- xfree (sals.sals);
+ std::vector<symtab_and_line> sals
+ = decode_line_with_last_displayed (arg, DECODE_LINE_FUNFIRSTLINE);
+ if (sals.size () != 1)
+ error (_("Unreasonable jump request"));
- /* Done with ARGS. */
- do_cleanups (args_chain);
+ symtab_and_line &sal = sals[0];
if (sal.symtab == 0 && sal.pc == 0)
error (_("No source file has been specified."));
if (fn != NULL && sfn != fn)
{
if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line,
- SYMBOL_PRINT_NAME (fn)))
+ fn->print_name ()))
{
error (_("Not confirmed."));
/* NOTREACHED */
/* Continue program giving it specified signal. */
static void
-signal_command (char *signum_exp, int from_tty)
+signal_command (const char *signum_exp, int from_tty)
{
enum gdb_signal oursig;
int async_exec;
- struct cleanup *args_chain;
dont_repeat (); /* Too dangerous. */
ERROR_NO_INFERIOR;
ensure_not_running ();
/* Find out whether we must run in the background. */
- signum_exp = strip_bg_char (signum_exp, &async_exec);
- args_chain = make_cleanup (xfree, signum_exp);
+ gdb::unique_xmalloc_ptr<char> stripped
+ = strip_bg_char (signum_exp, &async_exec);
+ signum_exp = stripped.get ();
- prepare_execution_command (¤t_target, async_exec);
+ prepare_execution_command (current_top_target (), async_exec);
if (!signum_exp)
error_no_arg (_("signal number"));
oursig = gdb_signal_from_command (num);
}
- do_cleanups (args_chain);
-
/* Look for threads other than the current that this command ends up
resuming too (due to schedlock off), and warn if they'll get a
signal delivered. "signal 0" is used to suppress a previous
of the wrong thread. */
if (!non_stop)
{
- struct thread_info *tp;
- ptid_t resume_ptid;
int must_confirm = 0;
/* This indicates what will be resumed. Either a single thread,
a whole process, or all threads of all processes. */
- resume_ptid = user_visible_resume_ptid (0);
+ ptid_t resume_ptid = user_visible_resume_ptid (0);
+ process_stratum_target *resume_target
+ = user_visible_resume_target (resume_ptid);
- ALL_NON_EXITED_THREADS (tp)
+ thread_info *current = inferior_thread ();
+
+ for (thread_info *tp : all_non_exited_threads (resume_target, resume_ptid))
{
- if (ptid_equal (tp->ptid, inferior_ptid))
- continue;
- if (!ptid_match (tp->ptid, resume_ptid))
+ if (tp == current)
continue;
if (tp->suspend.stop_signal != GDB_SIGNAL_0
/* Queue a signal to be delivered to the current thread. */
static void
-queue_signal_command (char *signum_exp, int from_tty)
+queue_signal_command (const char *signum_exp, int from_tty)
{
enum gdb_signal oursig;
struct thread_info *tp;
/* Data for the FSM that manages the until (with no argument)
command. */
-struct until_next_fsm
+struct until_next_fsm : public thread_fsm
{
- /* The base class. */
- struct thread_fsm thread_fsm;
-
/* The thread that as current when the command was executed. */
int thread;
-};
-static int until_next_fsm_should_stop (struct thread_fsm *self,
- struct thread_info *thread);
-static void until_next_fsm_clean_up (struct thread_fsm *self,
- struct thread_info *thread);
-static enum async_reply_reason
- until_next_fsm_async_reply_reason (struct thread_fsm *self);
+ until_next_fsm (struct interp *cmd_interp, int thread)
+ : thread_fsm (cmd_interp),
+ thread (thread)
+ {
+ }
-/* until_next_fsm's vtable. */
-
-static struct thread_fsm_ops until_next_fsm_ops =
-{
- NULL, /* dtor */
- until_next_fsm_clean_up,
- until_next_fsm_should_stop,
- NULL, /* return_value */
- until_next_fsm_async_reply_reason,
+ bool should_stop (struct thread_info *thread) override;
+ void clean_up (struct thread_info *thread) override;
+ enum async_reply_reason do_async_reply_reason () override;
};
-/* Allocate a new until_next_fsm. */
-
-static struct until_next_fsm *
-new_until_next_fsm (struct interp *cmd_interp, int thread)
-{
- struct until_next_fsm *sm;
-
- sm = XCNEW (struct until_next_fsm);
- thread_fsm_ctor (&sm->thread_fsm, &until_next_fsm_ops, cmd_interp);
-
- sm->thread = thread;
-
- return sm;
-}
-
/* Implementation of the 'should_stop' FSM method for the until (with
no arg) command. */
-static int
-until_next_fsm_should_stop (struct thread_fsm *self,
- struct thread_info *tp)
+bool
+until_next_fsm::should_stop (struct thread_info *tp)
{
if (tp->control.stop_step)
- thread_fsm_set_finished (self);
+ set_finished ();
- return 1;
+ return true;
}
/* Implementation of the 'clean_up' FSM method for the until (with no
arg) command. */
-static void
-until_next_fsm_clean_up (struct thread_fsm *self, struct thread_info *thread)
+void
+until_next_fsm::clean_up (struct thread_info *thread)
{
- struct until_next_fsm *sm = (struct until_next_fsm *) self;
-
delete_longjmp_breakpoint (thread->global_num);
}
/* Implementation of the 'async_reply_reason' FSM method for the until
(with no arg) command. */
-static enum async_reply_reason
-until_next_fsm_async_reply_reason (struct thread_fsm *self)
+enum async_reply_reason
+until_next_fsm::do_async_reply_reason ()
{
return EXEC_ASYNC_END_STEPPING_RANGE;
}
struct symtab_and_line sal;
struct thread_info *tp = inferior_thread ();
int thread = tp->global_num;
- struct cleanup *old_chain;
struct until_next_fsm *sm;
clear_proceed_status (0);
- set_step_frame ();
+ set_step_frame (tp);
frame = get_current_frame ();
{
sal = find_pc_line (pc, 0);
- tp->control.step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func));
+ tp->control.step_range_start = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (func));
tp->control.step_range_end = sal.end;
}
tp->control.may_range_step = 1;
tp->control.step_over_calls = STEP_OVER_ALL;
set_longjmp_breakpoint (tp, get_frame_id (frame));
- old_chain = make_cleanup (delete_longjmp_breakpoint_cleanup, &thread);
+ delete_longjmp_breakpoint_cleanup lj_deleter (thread);
- sm = new_until_next_fsm (command_interp (), tp->global_num);
- tp->thread_fsm = &sm->thread_fsm;
- discard_cleanups (old_chain);
+ sm = new until_next_fsm (command_interp (), tp->global_num);
+ tp->thread_fsm = sm;
+ lj_deleter.release ();
proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT);
}
static void
-until_command (char *arg, int from_tty)
+until_command (const char *arg, int from_tty)
{
int async_exec;
- struct cleanup *args_chain;
ERROR_NO_INFERIOR;
ensure_not_tfind_mode ();
ensure_not_running ();
/* Find out whether we must run in the background. */
- arg = strip_bg_char (arg, &async_exec);
- args_chain = make_cleanup (xfree, arg);
+ gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec);
+ arg = stripped.get ();
- prepare_execution_command (¤t_target, async_exec);
+ prepare_execution_command (current_top_target (), async_exec);
if (arg)
until_break_command (arg, from_tty, 0);
else
until_next_command (from_tty);
-
- /* Done with ARGS. */
- do_cleanups (args_chain);
}
static void
-advance_command (char *arg, int from_tty)
+advance_command (const char *arg, int from_tty)
{
int async_exec;
- struct cleanup *args_chain;
ERROR_NO_INFERIOR;
ensure_not_tfind_mode ();
error_no_arg (_("a location"));
/* Find out whether we must run in the background. */
- arg = strip_bg_char (arg, &async_exec);
- args_chain = make_cleanup (xfree, arg);
+ gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec);
+ arg = stripped.get ();
- prepare_execution_command (¤t_target, async_exec);
+ prepare_execution_command (current_top_target (), async_exec);
until_break_command (arg, from_tty, 1);
-
- /* Done with ARGS. */
- do_cleanups (args_chain);
}
\f
/* Return the value of the result of a function at the end of a 'finish'
struct value *
get_return_value (struct value *function, struct type *value_type)
{
- struct regcache *stop_regs;
- struct gdbarch *gdbarch;
+ regcache *stop_regs = get_current_regcache ();
+ struct gdbarch *gdbarch = stop_regs->arch ();
struct value *value;
- struct cleanup *cleanup;
-
- stop_regs = regcache_dup (get_current_regcache ());
- cleanup = make_cleanup_regcache_xfree (stop_regs);
-
- gdbarch = get_regcache_arch (stop_regs);
value_type = check_typedef (value_type);
- gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID);
+ gdb_assert (value_type->code () != TYPE_CODE_VOID);
/* FIXME: 2003-09-27: When returning from a nested inferior function
call, it's possible (with no help from the architecture vector)
internal_error (__FILE__, __LINE__, _("bad switch"));
}
- do_cleanups (cleanup);
-
return value;
}
uiout->field_fmt ("gdb-result-var", "$%d",
rv->value_history_index);
uiout->text (" = ");
- get_no_prettyformat_print_options (&opts);
-
- string_file stb;
+ get_user_print_options (&opts);
- value_print (rv->value, &stb, &opts);
- uiout->field_stream ("return-value", stb);
+ if (opts.finish_print)
+ {
+ string_file stb;
+ value_print (rv->value, &stb, &opts);
+ uiout->field_stream ("return-value", stb);
+ }
+ else
+ uiout->field_string ("return-value", _("<not displayed>"),
+ metadata_style.style ());
uiout->text ("\n");
}
else
void
print_return_value (struct ui_out *uiout, struct return_value_info *rv)
{
- if (rv->type == NULL || TYPE_CODE (rv->type) == TYPE_CODE_VOID)
+ if (rv->type == NULL
+ || check_typedef (rv->type)->code () == TYPE_CODE_VOID)
return;
- TRY
+ try
{
/* print_return_value_1 can throw an exception in some
circumstances. We need to catch this so that we still
delete the breakpoint. */
print_return_value_1 (uiout, rv);
}
- CATCH (ex, RETURN_MASK_ALL)
+ catch (const gdb_exception &ex)
{
exception_print (gdb_stdout, ex);
}
- END_CATCH
}
/* Data for the FSM that manages the finish command. */
-struct finish_command_fsm
+struct finish_command_fsm : public thread_fsm
{
- /* The base class. */
- struct thread_fsm thread_fsm;
-
/* The momentary breakpoint set at the function's return address in
the caller. */
- struct breakpoint *breakpoint;
+ breakpoint_up breakpoint;
/* The function that we're stepping out of. */
- struct symbol *function;
+ struct symbol *function = nullptr;
/* If the FSM finishes successfully, this stores the function's
return value. */
- struct return_value_info return_value;
-};
-
-static int finish_command_fsm_should_stop (struct thread_fsm *self,
- struct thread_info *thread);
-static void finish_command_fsm_clean_up (struct thread_fsm *self,
- struct thread_info *thread);
-static struct return_value_info *
- finish_command_fsm_return_value (struct thread_fsm *self);
-static enum async_reply_reason
- finish_command_fsm_async_reply_reason (struct thread_fsm *self);
-
-/* finish_command_fsm's vtable. */
-
-static struct thread_fsm_ops finish_command_fsm_ops =
-{
- NULL, /* dtor */
- finish_command_fsm_clean_up,
- finish_command_fsm_should_stop,
- finish_command_fsm_return_value,
- finish_command_fsm_async_reply_reason,
- NULL, /* should_notify_stop */
-};
-
-/* Allocate a new finish_command_fsm. */
-
-static struct finish_command_fsm *
-new_finish_command_fsm (struct interp *cmd_interp)
-{
- struct finish_command_fsm *sm;
+ struct return_value_info return_value_info {};
- sm = XCNEW (struct finish_command_fsm);
- thread_fsm_ctor (&sm->thread_fsm, &finish_command_fsm_ops, cmd_interp);
+ explicit finish_command_fsm (struct interp *cmd_interp)
+ : thread_fsm (cmd_interp)
+ {
+ }
- return sm;
-}
+ bool should_stop (struct thread_info *thread) override;
+ void clean_up (struct thread_info *thread) override;
+ struct return_value_info *return_value () override;
+ enum async_reply_reason do_async_reply_reason () override;
+};
/* Implementation of the 'should_stop' FSM method for the finish
commands. Detects whether the thread stepped out of the function
successfully, and if so, captures the function's return value and
marks the FSM finished. */
-static int
-finish_command_fsm_should_stop (struct thread_fsm *self,
- struct thread_info *tp)
+bool
+finish_command_fsm::should_stop (struct thread_info *tp)
{
- struct finish_command_fsm *f = (struct finish_command_fsm *) self;
- struct return_value_info *rv = &f->return_value;
+ struct return_value_info *rv = &return_value_info;
- if (f->function != NULL
+ if (function != NULL
&& bpstat_find_breakpoint (tp->control.stop_bpstat,
- f->breakpoint) != NULL)
+ breakpoint.get ()) != NULL)
{
/* We're done. */
- thread_fsm_set_finished (self);
+ set_finished ();
- rv->type = TYPE_TARGET_TYPE (SYMBOL_TYPE (f->function));
+ rv->type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function));
if (rv->type == NULL)
internal_error (__FILE__, __LINE__,
_("finish_command: function has no target type"));
- if (TYPE_CODE (rv->type) != TYPE_CODE_VOID)
+ if (check_typedef (rv->type)->code () != TYPE_CODE_VOID)
{
struct value *func;
- func = read_var_value (f->function, NULL, get_current_frame ());
+ func = read_var_value (function, NULL, get_current_frame ());
rv->value = get_return_value (func, rv->type);
if (rv->value != NULL)
rv->value_history_index = record_latest_value (rv->value);
{
/* Finishing from an inline frame, or reverse finishing. In
either case, there's no way to retrieve the return value. */
- thread_fsm_set_finished (self);
+ set_finished ();
}
- return 1;
+ return true;
}
/* Implementation of the 'clean_up' FSM method for the finish
commands. */
-static void
-finish_command_fsm_clean_up (struct thread_fsm *self,
- struct thread_info *thread)
+void
+finish_command_fsm::clean_up (struct thread_info *thread)
{
- struct finish_command_fsm *f = (struct finish_command_fsm *) self;
-
- if (f->breakpoint != NULL)
- {
- delete_breakpoint (f->breakpoint);
- f->breakpoint = NULL;
- }
+ breakpoint.reset ();
delete_longjmp_breakpoint (thread->global_num);
}
/* Implementation of the 'return_value' FSM method for the finish
commands. */
-static struct return_value_info *
-finish_command_fsm_return_value (struct thread_fsm *self)
+struct return_value_info *
+finish_command_fsm::return_value ()
{
- struct finish_command_fsm *f = (struct finish_command_fsm *) self;
-
- return &f->return_value;
+ return &return_value_info;
}
/* Implementation of the 'async_reply_reason' FSM method for the
finish commands. */
-static enum async_reply_reason
-finish_command_fsm_async_reply_reason (struct thread_fsm *self)
+enum async_reply_reason
+finish_command_fsm::do_async_reply_reason ()
{
if (execution_direction == EXEC_REVERSE)
return EXEC_ASYNC_END_STEPPING_RANGE;
{
struct frame_info *frame = get_selected_frame (NULL);
struct gdbarch *gdbarch = get_frame_arch (frame);
- struct symtab_and_line sr_sal;
/* Set a step-resume at the function's entry point. Once that's
hit, we'll do one more step backwards. */
- init_sal (&sr_sal);
+ symtab_and_line sr_sal;
sr_sal.pc = sal.pc;
sr_sal.pspace = get_frame_program_space (frame);
insert_step_resume_breakpoint_at_sal (gdbarch,
frame will return to, then continue. */
static void
-finish_command (char *arg, int from_tty)
+finish_command (const char *arg, int from_tty)
{
struct frame_info *frame;
int async_exec;
- struct cleanup *args_chain;
struct finish_command_fsm *sm;
struct thread_info *tp;
ensure_not_running ();
/* Find out whether we must run in the background. */
- arg = strip_bg_char (arg, &async_exec);
- args_chain = make_cleanup (xfree, arg);
+ gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec);
+ arg = stripped.get ();
- prepare_execution_command (¤t_target, async_exec);
+ prepare_execution_command (current_top_target (), async_exec);
if (arg)
error (_("The \"finish\" command does not take any arguments."));
- /* Done with ARGS. */
- do_cleanups (args_chain);
-
frame = get_prev_frame (get_selected_frame (_("No selected frame.")));
if (frame == 0)
error (_("\"finish\" not meaningful in the outermost frame."));
tp = inferior_thread ();
- sm = new_finish_command_fsm (command_interp ());
+ sm = new finish_command_fsm (command_interp ());
- tp->thread_fsm = &sm->thread_fsm;
+ tp->thread_fsm = sm;
/* Finishing from an inline frame is completely different. We don't
try to show the "return value" - no way to locate it. */
called by that frame. We don't use the magic "1" value for
step_range_end, because then infrun will think this is nexti,
and not step over the rest of this inlined function call. */
- struct symtab_and_line empty_sal;
-
- init_sal (&empty_sal);
- set_step_info (frame, empty_sal);
+ set_step_info (tp, frame, {});
tp->control.step_range_start = get_frame_pc (frame);
tp->control.step_range_end = tp->control.step_range_start;
tp->control.step_over_calls = STEP_OVER_ALL;
if (sm->function != NULL && TYPE_NO_RETURN (sm->function->type)
&& !query (_("warning: Function %s does not return normally.\n"
"Try to finish anyway? "),
- SYMBOL_PRINT_NAME (sm->function)))
+ sm->function->print_name ()))
error (_("Not confirmed."));
printf_filtered (_("Run till exit from "));
}
\f
static void
-program_info (char *args, int from_tty)
+info_program_command (const char *args, int from_tty)
{
bpstat bs;
int num, stat;
- struct thread_info *tp;
ptid_t ptid;
+ process_stratum_target *proc_target;
if (!target_has_execution)
{
}
if (non_stop)
- ptid = inferior_ptid;
- else
{
- struct target_waitstatus ws;
-
- get_last_target_status (&ptid, &ws);
+ ptid = inferior_ptid;
+ proc_target = current_inferior ()->process_target ();
}
+ else
+ get_last_target_status (&proc_target, &ptid, nullptr);
+
+ if (ptid == null_ptid || ptid == minus_one_ptid)
+ error (_("No selected thread."));
- if (ptid_equal (ptid, null_ptid) || is_exited (ptid))
+ thread_info *tp = find_thread_ptid (proc_target, ptid);
+
+ if (tp->state == THREAD_EXITED)
error (_("Invalid selected thread."));
- else if (is_running (ptid))
+ else if (tp->state == THREAD_RUNNING)
error (_("Selected thread is running."));
- tp = find_thread_ptid (ptid);
bs = tp->control.stop_bpstat;
stat = bpstat_num (&bs, &num);
target_files_info ();
printf_filtered (_("Program stopped at %s.\n"),
- paddress (target_gdbarch (), stop_pc));
+ paddress (target_gdbarch (), tp->suspend.stop_pc));
if (tp->control.stop_step)
printf_filtered (_("It stopped after being stepped.\n"));
else if (stat != 0)
}
\f
static void
-environment_info (char *var, int from_tty)
+environment_info (const char *var, int from_tty)
{
if (var)
{
- char *val = get_in_environ (current_inferior ()->environment, var);
+ const char *val = current_inferior ()->environment.get (var);
if (val)
{
}
else
{
- char **vector = environ_vector (current_inferior ()->environment);
+ char **envp = current_inferior ()->environment.envp ();
- while (*vector)
+ for (int idx = 0; envp[idx] != NULL; ++idx)
{
- puts_filtered (*vector++);
+ puts_filtered (envp[idx]);
puts_filtered ("\n");
}
}
}
static void
-set_environment_command (char *arg, int from_tty)
+set_environment_command (const char *arg, int from_tty)
{
- char *p, *val, *var;
+ const char *p, *val;
int nullset = 0;
if (arg == 0)
error_no_arg (_("environment variable and value"));
- /* Find seperation between variable name and value. */
+ /* Find separation between variable name and value. */
p = (char *) strchr (arg, '=');
val = (char *) strchr (arg, ' ');
while (p != arg && (p[-1] == ' ' || p[-1] == '\t'))
p--;
- var = savestring (arg, p - arg);
+ std::string var (arg, p - arg);
if (nullset)
{
printf_filtered (_("Setting environment variable "
"\"%s\" to null value.\n"),
- var);
- set_in_environ (current_inferior ()->environment, var, "");
+ var.c_str ());
+ current_inferior ()->environment.set (var.c_str (), "");
}
else
- set_in_environ (current_inferior ()->environment, var, val);
- xfree (var);
+ current_inferior ()->environment.set (var.c_str (), val);
}
static void
-unset_environment_command (char *var, int from_tty)
+unset_environment_command (const char *var, int from_tty)
{
if (var == 0)
{
/* If there is no argument, delete all environment variables.
Ask for confirmation if reading from the terminal. */
if (!from_tty || query (_("Delete all environment variables? ")))
- {
- free_environ (current_inferior ()->environment);
- current_inferior ()->environment = make_environ ();
- }
+ current_inferior ()->environment.clear ();
}
else
- unset_in_environ (current_inferior ()->environment, var);
+ current_inferior ()->environment.unset (var);
}
/* Handle the execution path (PATH variable). */
static const char path_var_name[] = "PATH";
static void
-path_info (char *args, int from_tty)
+path_info (const char *args, int from_tty)
{
puts_filtered ("Executable and object file path: ");
- puts_filtered (get_in_environ (current_inferior ()->environment,
- path_var_name));
+ puts_filtered (current_inferior ()->environment.get (path_var_name));
puts_filtered ("\n");
}
/* Add zero or more directories to the front of the execution path. */
static void
-path_command (char *dirname, int from_tty)
+path_command (const char *dirname, int from_tty)
{
char *exec_path;
const char *env;
dont_repeat ();
- env = get_in_environ (current_inferior ()->environment, path_var_name);
+ env = current_inferior ()->environment.get (path_var_name);
/* Can be null if path is not set. */
if (!env)
env = "";
exec_path = xstrdup (env);
mod_path (dirname, &exec_path);
- set_in_environ (current_inferior ()->environment, path_var_name, exec_path);
+ current_inferior ()->environment.set (path_var_name, exec_path);
xfree (exec_path);
if (from_tty)
- path_info ((char *) NULL, from_tty);
+ path_info (NULL, from_tty);
}
\f
+static void
+pad_to_column (string_file &stream, int col)
+{
+ /* At least one space must be printed to separate columns. */
+ stream.putc (' ');
+ const int size = stream.size ();
+ if (size < col)
+ stream.puts (n_spaces (col - size));
+}
+
/* Print out the register NAME with value VAL, to FILE, in the default
fashion. */
{
struct type *regtype = value_type (val);
int print_raw_format;
+ string_file format_stream;
+ enum tab_stops
+ {
+ value_column_1 = 15,
+ /* Give enough room for "0x", 16 hex digits and two spaces in
+ preceding column. */
+ value_column_2 = value_column_1 + 2 + 16 + 2,
+ };
- fputs_filtered (name, file);
- print_spaces_filtered (15 - strlen (name), file);
+ format_stream.puts (name);
+ pad_to_column (format_stream, value_column_1);
print_raw_format = (value_entirely_available (val)
&& !value_optimized_out (val));
/* If virtual format is floating, print it that way, and in raw
hex. */
- if (TYPE_CODE (regtype) == TYPE_CODE_FLT
- || TYPE_CODE (regtype) == TYPE_CODE_DECFLOAT)
+ if (regtype->code () == TYPE_CODE_FLT
+ || regtype->code () == TYPE_CODE_DECFLOAT)
{
struct value_print_options opts;
const gdb_byte *valaddr = value_contents_for_printing (val);
- enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (regtype));
+ enum bfd_endian byte_order = type_byte_order (regtype);
get_user_print_options (&opts);
opts.deref_ref = 1;
- val_print (regtype,
- value_embedded_offset (val), 0,
- file, 0, val, &opts, current_language);
+ common_val_print (val, &format_stream, 0, &opts, current_language);
if (print_raw_format)
{
- fprintf_filtered (file, "\t(raw ");
- print_hex_chars (file, valaddr, TYPE_LENGTH (regtype), byte_order);
- fprintf_filtered (file, ")");
+ pad_to_column (format_stream, value_column_2);
+ format_stream.puts ("(raw ");
+ print_hex_chars (&format_stream, valaddr, TYPE_LENGTH (regtype),
+ byte_order, true);
+ format_stream.putc (')');
}
}
else
/* Print the register in hex. */
get_formatted_print_options (&opts, 'x');
opts.deref_ref = 1;
- val_print (regtype,
- value_embedded_offset (val), 0,
- file, 0, val, &opts, current_language);
+ common_val_print (val, &format_stream, 0, &opts, current_language);
/* If not a vector register, print it also according to its
natural format. */
if (print_raw_format && TYPE_VECTOR (regtype) == 0)
{
+ pad_to_column (format_stream, value_column_2);
get_user_print_options (&opts);
opts.deref_ref = 1;
- fprintf_filtered (file, "\t");
- val_print (regtype,
- value_embedded_offset (val), 0,
- file, 0, val, &opts, current_language);
+ common_val_print (val, &format_stream, 0, &opts, current_language);
}
}
+ fputs_filtered (format_stream.c_str (), file);
fprintf_filtered (file, "\n");
}
int regnum, int print_all)
{
int i;
- const int numregs = gdbarch_num_regs (gdbarch)
- + gdbarch_num_pseudo_regs (gdbarch);
+ const int numregs = gdbarch_num_cooked_regs (gdbarch);
for (i = 0; i < numregs; i++)
{
}
void
-registers_info (char *addr_exp, int fpregs)
+registers_info (const char *addr_exp, int fpregs)
{
struct frame_info *frame;
struct gdbarch *gdbarch;
while (*addr_exp != '\0')
{
- char *start;
+ const char *start;
const char *end;
/* Skip leading white space. */
/* User registers lie completely outside of the range of
normal registers. Catch them early so that the target
never sees them. */
- if (regnum >= gdbarch_num_regs (gdbarch)
- + gdbarch_num_pseudo_regs (gdbarch))
+ if (regnum >= gdbarch_num_cooked_regs (gdbarch))
{
struct value *regval = value_of_user_reg (regnum, frame);
const char *regname = user_reg_map_regnum_to_name (gdbarch,
int regnum;
for (regnum = 0;
- regnum < gdbarch_num_regs (gdbarch)
- + gdbarch_num_pseudo_regs (gdbarch);
+ regnum < gdbarch_num_cooked_regs (gdbarch);
regnum++)
{
if (gdbarch_register_reggroup_p (gdbarch, regnum, group))
}
static void
-all_registers_info (char *addr_exp, int from_tty)
+info_all_registers_command (const char *addr_exp, int from_tty)
{
registers_info (addr_exp, 1);
}
static void
-nofp_registers_info (char *addr_exp, int from_tty)
+info_registers_command (const char *addr_exp, int from_tty)
{
registers_info (addr_exp, 0);
}
int regnum;
int printed_something = 0;
- for (regnum = 0;
- regnum < gdbarch_num_regs (gdbarch)
- + gdbarch_num_pseudo_regs (gdbarch);
- regnum++)
+ for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++)
{
if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup))
{
}
static void
-vector_info (char *args, int from_tty)
+info_vector_command (const char *args, int from_tty)
{
if (!target_has_registers)
error (_("The program has no registers now."));
/* Kill the inferior process. Make us have no inferior. */
static void
-kill_command (char *arg, int from_tty)
+kill_command (const char *arg, int from_tty)
{
/* FIXME: This should not really be inferior_ptid (or target_has_execution).
It should be a distinct flag that indicates that a target is active, cuz
some targets don't have processes! */
- if (ptid_equal (inferior_ptid, null_ptid))
+ if (inferior_ptid == null_ptid)
error (_("The program is not being run."));
if (!query (_("Kill the program being debugged? ")))
error (_("Not confirmed."));
+
+ int pid = current_inferior ()->pid;
+ /* Save the pid as a string before killing the inferior, since that
+ may unpush the current target, and we need the string after. */
+ std::string pid_str = target_pid_to_str (ptid_t (pid));
+ int infnum = current_inferior ()->num;
+
target_kill ();
- /* If we still have other inferiors to debug, then don't mess with
- with their threads. */
- if (!have_inferiors ())
- {
- init_thread_list (); /* Destroy thread info. */
+ if (print_inferior_events)
+ printf_unfiltered (_("[Inferior %d (%s) killed]\n"),
+ infnum, pid_str.c_str ());
- /* Killing off the inferior can leave us with a core file. If
- so, print the state we are left in. */
- if (target_has_stack)
- {
- printf_filtered (_("In %s,\n"), target_longname);
- print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1);
- }
- }
bfd_cache_close_all ();
}
-/* Used in `attach&' command. ARG is a point to an integer
- representing a process id. Proceed threads of this process iff
+/* Used in `attach&' command. Proceed threads of inferior INF iff
they stopped due to debugger request, and when they did, they
- reported a clean stop (GDB_SIGNAL_0). Do not proceed threads
- that have been explicitly been told to stop. */
-
-static int
-proceed_after_attach_callback (struct thread_info *thread,
- void *arg)
-{
- int pid = * (int *) arg;
-
- if (ptid_get_pid (thread->ptid) == pid
- && !is_exited (thread->ptid)
- && !is_executing (thread->ptid)
- && !thread->stop_requested
- && thread->suspend.stop_signal == GDB_SIGNAL_0)
- {
- switch_to_thread (thread->ptid);
- clear_proceed_status (0);
- proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT);
- }
-
- return 0;
-}
+ reported a clean stop (GDB_SIGNAL_0). Do not proceed threads that
+ have been explicitly been told to stop. */
static void
-proceed_after_attach (int pid)
+proceed_after_attach (inferior *inf)
{
/* Don't error out if the current thread is running, because
there may be other stopped threads. */
- struct cleanup *old_chain;
/* Backup current thread and selected frame. */
- old_chain = make_cleanup_restore_current_thread ();
-
- iterate_over_threads (proceed_after_attach_callback, &pid);
+ scoped_restore_current_thread restore_thread;
- /* Restore selected ptid. */
- do_cleanups (old_chain);
+ for (thread_info *thread : inf->non_exited_threads ())
+ if (!thread->executing
+ && !thread->stop_requested
+ && thread->suspend.stop_signal == GDB_SIGNAL_0)
+ {
+ switch_to_thread (thread);
+ clear_proceed_status (0);
+ proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT);
+ }
}
/* See inferior.h. */
/* If no exec file is yet known, try to determine it from the
process itself. */
if (get_exec_file (0) == NULL)
- exec_file_locate_attach (ptid_get_pid (inferior_ptid), 1, from_tty);
+ exec_file_locate_attach (inferior_ptid.pid (), 1, from_tty);
else
{
reopen_exec_file ();
}
/* Take any necessary post-attaching actions for this platform. */
- target_post_attach (ptid_get_pid (inferior_ptid));
+ target_post_attach (inferior_ptid.pid ());
- post_create_inferior (¤t_target, from_tty);
+ post_create_inferior (current_top_target (), from_tty);
}
/* What to do after the first program stops after attaching. */
already running threads. If a thread has been stopped with a
signal, leave it be. */
if (non_stop)
- proceed_after_attach (inferior->pid);
+ proceed_after_attach (inferior);
else
{
if (inferior_thread ()->suspend.stop_signal == GDB_SIGNAL_0)
Be sure to explicitly stop all threads of the process. This
should have no effect on already stopped threads. */
if (non_stop)
- target_stop (pid_to_ptid (inferior->pid));
+ target_stop (ptid_t (inferior->pid));
else if (target_is_non_stop_p ())
{
- struct thread_info *thread;
struct thread_info *lowest = inferior_thread ();
- int pid = current_inferior ()->pid;
stop_all_threads ();
stop. For consistency, always select the thread with
lowest GDB number, which should be the main thread, if it
still exists. */
- ALL_NON_EXITED_THREADS (thread)
- {
- if (ptid_get_pid (thread->ptid) == pid)
- {
- if (thread->inf->num < lowest->inf->num
- || thread->per_inf_num < lowest->per_inf_num)
- lowest = thread;
- }
- }
+ for (thread_info *thread : current_inferior ()->non_exited_threads ())
+ if (thread->inf->num < lowest->inf->num
+ || thread->per_inf_num < lowest->per_inf_num)
+ lowest = thread;
- switch_to_thread (lowest->ptid);
+ switch_to_thread (lowest);
}
/* Tell the user/frontend where we're stopped. */
and allows us to start debugging it. */
void
-attach_command (char *args, int from_tty)
+attach_command (const char *args, int from_tty)
{
int async_exec;
- struct cleanup *args_chain;
struct target_ops *attach_target;
struct inferior *inferior = current_inferior ();
enum attach_post_wait_mode mode;
this function should probably be moved into target_pre_inferior. */
target_pre_inferior (from_tty);
- args = strip_bg_char (args, &async_exec);
- args_chain = make_cleanup (xfree, args);
+ gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (args, &async_exec);
+ args = stripped.get ();
attach_target = find_attach_target ();
prepare_execution_command (attach_target, async_exec);
- if (non_stop && !attach_target->to_supports_non_stop (attach_target))
+ if (non_stop && !attach_target->supports_non_stop ())
error (_("Cannot attach to this target in non-stop mode"));
- attach_target->to_attach (attach_target, args, from_tty);
+ attach_target->attach (args, from_tty);
/* to_attach should push the target, so after this point we
shouldn't refer to attach_target again. */
attach_target = NULL;
/* Set up the "saved terminal modes" of the inferior
based on what modes we are starting it with. */
- target_terminal_init ();
+ target_terminal::init ();
/* Install inferior's terminal modes. This may look like a no-op,
as we've just saved them above, however, this does more than
while we're in the event loop waiting for that stop. That is,
before the attach continuation runs and the command is really
finished. */
- target_terminal_inferior ();
+ target_terminal::inferior ();
/* Set up execution context to know that we should return from
wait_for_inferior as soon as the target reports a stop. */
else
/* The user requested an `attach', so stop all threads of this
inferior. */
- target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid)));
+ target_stop (ptid_t (inferior_ptid.pid ()));
}
+ /* Check for exec file mismatch, and let the user solve it. */
+ validate_exec_file (from_tty);
+
mode = async_exec ? ATTACH_POST_WAIT_RESUME : ATTACH_POST_WAIT_STOP;
/* Some system don't generate traps when attaching to inferior.
E.g. Mach 3 or GNU hurd. */
- if (!target_attach_no_wait)
+ if (!target_attach_no_wait ())
{
struct attach_command_continuation_args *a;
a->mode = mode;
add_inferior_continuation (attach_command_continuation, a,
attach_command_continuation_free_args);
- /* Done with ARGS. */
- do_cleanups (args_chain);
+
+ /* Let infrun consider waiting for events out of this
+ target. */
+ inferior->process_target ()->threads_executing = true;
if (!target_is_async_p ())
mark_infrun_async_event_handler ();
return;
}
-
- /* Done with ARGS. */
- do_cleanups (args_chain);
-
- attach_post_wait (args, from_tty, mode);
+ else
+ attach_post_wait (args, from_tty, mode);
}
/* We had just found out that the target was already attached to an
as stopped. */
void
-notice_new_inferior (ptid_t ptid, int leave_running, int from_tty)
+notice_new_inferior (thread_info *thr, int leave_running, int from_tty)
{
- struct cleanup* old_chain;
- enum attach_post_wait_mode mode;
+ enum attach_post_wait_mode mode
+ = leave_running ? ATTACH_POST_WAIT_RESUME : ATTACH_POST_WAIT_NOTHING;
- old_chain = make_cleanup (null_cleanup, NULL);
+ gdb::optional<scoped_restore_current_thread> restore_thread;
- mode = leave_running ? ATTACH_POST_WAIT_RESUME : ATTACH_POST_WAIT_NOTHING;
-
- if (!ptid_equal (inferior_ptid, null_ptid))
- make_cleanup_restore_current_thread ();
+ if (inferior_ptid != null_ptid)
+ restore_thread.emplace ();
/* Avoid reading registers -- we haven't fetched the target
description yet. */
- switch_to_thread_no_regs (find_thread_ptid (ptid));
+ switch_to_thread_no_regs (thr);
/* When we "notice" a new inferior we need to do all the things we
would normally do if we had just attached to it. */
- if (is_executing (inferior_ptid))
+ if (thr->executing)
{
struct attach_command_continuation_args *a;
struct inferior *inferior = current_inferior ();
add_inferior_continuation (attach_command_continuation, a,
attach_command_continuation_free_args);
- do_cleanups (old_chain);
return;
}
attach_post_wait ("" /* args */, from_tty, mode);
-
- do_cleanups (old_chain);
}
/*
*/
void
-detach_command (char *args, int from_tty)
+detach_command (const char *args, int from_tty)
{
dont_repeat (); /* Not for the faint of heart. */
- if (ptid_equal (inferior_ptid, null_ptid))
+ if (inferior_ptid == null_ptid)
error (_("The program is not being run."));
query_if_trace_running (from_tty);
disconnect_tracing ();
- target_detach (args, from_tty);
+ target_detach (current_inferior (), from_tty);
/* The current inferior process was just detached successfully. Get
rid of breakpoints that no longer make sense. Note we don't do
if (!gdbarch_has_global_solist (target_gdbarch ()))
no_shared_libraries (NULL, from_tty);
- /* If we still have inferiors to debug, then don't mess with their
- threads. */
- if (!have_inferiors ())
- init_thread_list ();
-
if (deprecated_detach_hook)
deprecated_detach_hook ();
}
stopped processes on some native platforms (e.g. GNU/Linux). */
static void
-disconnect_command (char *args, int from_tty)
+disconnect_command (const char *args, int from_tty)
{
dont_repeat (); /* Not for the faint of heart. */
query_if_trace_running (from_tty);
deprecated_detach_hook ();
}
-void
-interrupt_target_1 (int all_threads)
-{
- ptid_t ptid;
-
- if (all_threads)
- ptid = minus_one_ptid;
- else
- ptid = inferior_ptid;
+/* Stop PTID in the current target, and tag the PTID threads as having
+ been explicitly requested to stop. PTID can be a thread, a
+ process, or minus_one_ptid, meaning all threads of all inferiors of
+ the current target. */
- if (non_stop)
- target_stop (ptid);
- else
- target_interrupt (ptid);
+static void
+stop_current_target_threads_ns (ptid_t ptid)
+{
+ target_stop (ptid);
/* Tag the thread as having been explicitly requested to stop, so
other parts of gdb know not to resume this thread automatically,
non-stop mode, as when debugging a multi-threaded application in
all-stop mode, we will only get one stop event --- it's undefined
which thread will report the event. */
+ set_stop_requested (current_inferior ()->process_target (),
+ ptid, 1);
+}
+
+/* See inferior.h. */
+
+void
+interrupt_target_1 (bool all_threads)
+{
if (non_stop)
- set_stop_requested (ptid, 1);
+ {
+ if (all_threads)
+ {
+ scoped_restore_current_thread restore_thread;
+
+ for (inferior *inf : all_inferiors ())
+ {
+ switch_to_inferior_no_thread (inf);
+ stop_current_target_threads_ns (minus_one_ptid);
+ }
+ }
+ else
+ stop_current_target_threads_ns (inferior_ptid);
+ }
+ else
+ target_interrupt ();
}
/* interrupt [-a]
if the `-a' switch is used. */
static void
-interrupt_command (char *args, int from_tty)
+interrupt_command (const char *args, int from_tty)
{
if (target_can_async_p ())
{
int regnum;
int printed_something = 0;
- for (regnum = 0;
- regnum < gdbarch_num_regs (gdbarch)
- + gdbarch_num_pseudo_regs (gdbarch);
- regnum++)
+ for (regnum = 0; regnum < gdbarch_num_cooked_regs (gdbarch); regnum++)
{
if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup))
{
}
static void
-float_info (char *args, int from_tty)
+info_float_command (const char *args, int from_tty)
{
struct frame_info *frame;
gdbarch_print_float_info (get_frame_arch (frame), gdb_stdout, frame, args);
}
\f
-static void
-unset_command (char *args, int from_tty)
-{
- printf_filtered (_("\"unset\" must be followed by the "
- "name of an unset subcommand.\n"));
- help_list (unsetlist, "unset ", all_commands, gdb_stdout);
-}
-
/* Implement `info proc' family of commands. */
static void
-info_proc_cmd_1 (char *args, enum info_proc_what what, int from_tty)
+info_proc_cmd_1 (const char *args, enum info_proc_what what, int from_tty)
{
struct gdbarch *gdbarch = get_current_arch ();
}
}
-/* Implement `info proc' when given without any futher parameters. */
+/* Implement `info proc' when given without any further parameters. */
static void
-info_proc_cmd (char *args, int from_tty)
+info_proc_cmd (const char *args, int from_tty)
{
info_proc_cmd_1 (args, IP_MINIMAL, from_tty);
}
/* Implement `info proc mappings'. */
static void
-info_proc_cmd_mappings (char *args, int from_tty)
+info_proc_cmd_mappings (const char *args, int from_tty)
{
info_proc_cmd_1 (args, IP_MAPPINGS, from_tty);
}
/* Implement `info proc stat'. */
static void
-info_proc_cmd_stat (char *args, int from_tty)
+info_proc_cmd_stat (const char *args, int from_tty)
{
info_proc_cmd_1 (args, IP_STAT, from_tty);
}
/* Implement `info proc status'. */
static void
-info_proc_cmd_status (char *args, int from_tty)
+info_proc_cmd_status (const char *args, int from_tty)
{
info_proc_cmd_1 (args, IP_STATUS, from_tty);
}
/* Implement `info proc cwd'. */
static void
-info_proc_cmd_cwd (char *args, int from_tty)
+info_proc_cmd_cwd (const char *args, int from_tty)
{
info_proc_cmd_1 (args, IP_CWD, from_tty);
}
/* Implement `info proc cmdline'. */
static void
-info_proc_cmd_cmdline (char *args, int from_tty)
+info_proc_cmd_cmdline (const char *args, int from_tty)
{
info_proc_cmd_1 (args, IP_CMDLINE, from_tty);
}
/* Implement `info proc exe'. */
static void
-info_proc_cmd_exe (char *args, int from_tty)
+info_proc_cmd_exe (const char *args, int from_tty)
{
info_proc_cmd_1 (args, IP_EXE, from_tty);
}
+/* Implement `info proc files'. */
+
+static void
+info_proc_cmd_files (const char *args, int from_tty)
+{
+ info_proc_cmd_1 (args, IP_FILES, from_tty);
+}
+
/* Implement `info proc all'. */
static void
-info_proc_cmd_all (char *args, int from_tty)
+info_proc_cmd_all (const char *args, int from_tty)
{
info_proc_cmd_1 (args, IP_ALL, from_tty);
}
+/* Implement `show print finish'. */
+
+static void
+show_print_finish (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c,
+ const char *value)
+{
+ fprintf_filtered (file, _("\
+Printing of return value after `finish' is %s.\n"),
+ value);
+}
+
+
+/* This help string is used for the run, start, and starti commands.
+ It is defined as a macro to prevent duplication. */
+
+#define RUN_ARGS_HELP \
+"You may specify arguments to give it.\n\
+Args may include \"*\", or \"[...]\"; they are expanded using the\n\
+shell that will start the program (specified by the \"$SHELL\" environment\n\
+variable). Input and output redirection with \">\", \"<\", or \">>\"\n\
+are also allowed.\n\
+\n\
+With no arguments, uses arguments last specified (with \"run\" or \n\
+\"set args\"). To cancel previous arguments and run with no arguments,\n\
+use \"set args\" without arguments.\n\
+\n\
+To start the inferior without using a shell, use \"set startup-with-shell off\"."
+
+void _initialize_infcmd ();
void
-_initialize_infcmd (void)
+_initialize_infcmd ()
{
static struct cmd_list_element *info_proc_cmdlist;
struct cmd_list_element *c = NULL;
set_inferior_tty_command,
show_inferior_tty_command,
&setlist, &showlist);
- add_com_alias ("tty", "set inferior-tty", class_alias, 0);
+ cmd_name = "inferior-tty";
+ c = lookup_cmd (&cmd_name, setlist, "", -1, 1);
+ gdb_assert (c != NULL);
+ add_alias_cmd ("tty", c, class_run, 0, &cmdlist);
cmd_name = "args";
add_setshow_string_noescape_cmd (cmd_name, class_run,
gdb_assert (c != NULL);
set_cmd_completer (c, filename_completer);
+ cmd_name = "cwd";
+ add_setshow_string_noescape_cmd (cmd_name, class_run,
+ &inferior_cwd_scratch, _("\
+Set the current working directory to be used when the inferior is started.\n\
+Changing this setting does not have any effect on inferiors that are\n\
+already running."),
+ _("\
+Show the current working directory that is used when the inferior is started."),
+ _("\
+Use this command to change the current working directory that will be used\n\
+when the inferior is started. This setting does not affect GDB's current\n\
+working directory."),
+ set_cwd_command,
+ show_cwd_command,
+ &setlist, &showlist);
+ c = lookup_cmd (&cmd_name, setlist, "", -1, 1);
+ gdb_assert (c != NULL);
+ set_cmd_completer (c, filename_completer);
+
c = add_cmd ("environment", no_class, environment_info, _("\
The environment to give the program, or one variable's value.\n\
With an argument VAR, prints the value of environment variable VAR to\n\
environment to be given to the program."), &showlist);
set_cmd_completer (c, noop_completer);
- add_prefix_cmd ("unset", no_class, unset_command,
- _("Complement to certain \"set\" commands."),
- &unsetlist, "unset ", 0, &cmdlist);
+ add_basic_prefix_cmd ("unset", no_class,
+ _("Complement to certain \"set\" commands."),
+ &unsetlist, "unset ", 0, &cmdlist);
c = add_cmd ("environment", class_run, unset_environment_command, _("\
Cancel environment variable VAR for the program.\n\
Usage: stepi [N]\n\
Argument N means step N times (or till program stops for another \
reason)."));
- add_com_alias ("si", "stepi", class_alias, 0);
+ add_com_alias ("si", "stepi", class_run, 0);
add_com ("nexti", class_run, nexti_command, _("\
Step one instruction, but proceed through subroutine calls.\n\
Usage: nexti [N]\n\
Argument N means step N times (or till program stops for another \
reason)."));
- add_com_alias ("ni", "nexti", class_alias, 0);
+ add_com_alias ("ni", "nexti", class_run, 0);
add_com ("finish", class_run, finish_command, _("\
Execute until selected stack frame returns.\n\
add_com_alias ("s", "step", class_run, 1);
c = add_com ("until", class_run, until_command, _("\
+Execute until past the current line or past a LOCATION.\n\
Execute until the program reaches a source line greater than the current\n\
or a specified location (same args as break command) within the current \
frame."));
c = add_com ("jump", class_run, jump_command, _("\
Continue program being debugged at specified line or address.\n\
-Usage: jump <location>\n\
+Usage: jump LOCATION\n\
Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\
for an address to start at."));
set_cmd_completer (c, location_completer);
add_com_alias ("fg", "cont", class_run, 1);
c = add_com ("run", class_run, run_command, _("\
-Start debugged program. You may specify arguments to give it.\n\
-Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\
-Input and output redirection with \">\", \"<\", or \">>\" are also \
-allowed.\n\n\
-With no arguments, uses arguments last specified (with \"run\" \
-or \"set args\").\n\
-To cancel previous arguments and run with no arguments,\n\
-use \"set args\" without arguments."));
+Start debugged program.\n"
+RUN_ARGS_HELP));
set_cmd_completer (c, filename_completer);
add_com_alias ("r", "run", class_run, 1);
c = add_com ("start", class_run, start_command, _("\
-Run the debugged program until the beginning of the main procedure.\n\
-You may specify arguments to give to your program, just as with the\n\
-\"run\" command."));
+Start the debugged program stopping at the beginning of the main procedure.\n"
+RUN_ARGS_HELP));
+ set_cmd_completer (c, filename_completer);
+
+ c = add_com ("starti", class_run, starti_command, _("\
+Start the debugged program stopping at the first instruction.\n"
+RUN_ARGS_HELP));
set_cmd_completer (c, filename_completer);
add_com ("interrupt", class_run, interrupt_command,
otherwise all the threads in the program are stopped. To \n\
interrupt all running threads in non-stop mode, use the -a option."));
- c = add_info ("registers", nofp_registers_info, _("\
+ c = add_info ("registers", info_registers_command, _("\
List of integer registers and their contents, for selected stack frame.\n\
-Register name as argument means describe only that register."));
+One or more register names as argument means describe the given registers.\n\
+One or more register group names as argument means describe the registers\n\
+in the named register groups."));
add_info_alias ("r", "registers", 1);
set_cmd_completer (c, reg_or_group_completer);
- c = add_info ("all-registers", all_registers_info, _("\
+ c = add_info ("all-registers", info_all_registers_command, _("\
List of all registers and their contents, for selected stack frame.\n\
-Register name as argument means describe only that register."));
+One or more register names as argument means describe the given registers.\n\
+One or more register group names as argument means describe the registers\n\
+in the named register groups."));
set_cmd_completer (c, reg_or_group_completer);
- add_info ("program", program_info,
+ add_info ("program", info_program_command,
_("Execution status of the program."));
- add_info ("float", float_info,
- _("Print the status of the floating point unit\n"));
+ add_info ("float", info_float_command,
+ _("Print the status of the floating point unit."));
- add_info ("vector", vector_info,
- _("Print the status of the vector unit\n"));
+ add_info ("vector", info_vector_command,
+ _("Print the status of the vector unit."));
add_prefix_cmd ("proc", class_info, info_proc_cmd,
_("\
-Show /proc process information about any running process.\n\
+Show additional information about a process.\n\
Specify any process id, or use the program being debugged by default."),
&info_proc_cmdlist, "info proc ",
1/*allow-unknown*/, &infolist);
add_cmd ("mappings", class_info, info_proc_cmd_mappings, _("\
-List of mapped memory regions."),
+List memory regions mapped by the specified process."),
&info_proc_cmdlist);
add_cmd ("stat", class_info, info_proc_cmd_stat, _("\
&info_proc_cmdlist);
add_cmd ("cwd", class_info, info_proc_cmd_cwd, _("\
-List current working directory of the process."),
+List current working directory of the specified process."),
&info_proc_cmdlist);
add_cmd ("cmdline", class_info, info_proc_cmd_cmdline, _("\
-List command line arguments of the process."),
+List command line arguments of the specified process."),
&info_proc_cmdlist);
add_cmd ("exe", class_info, info_proc_cmd_exe, _("\
-List absolute filename for executable of the process."),
+List absolute filename for executable of the specified process."),
+ &info_proc_cmdlist);
+
+ add_cmd ("files", class_info, info_proc_cmd_files, _("\
+List files opened by the specified process."),
&info_proc_cmdlist);
add_cmd ("all", class_info, info_proc_cmd_all, _("\
-List all available /proc info."),
+List all available info about the specified process."),
&info_proc_cmdlist);
+
+ add_setshow_boolean_cmd ("finish", class_support,
+ &user_print_options.finish_print, _("\
+Set whether `finish' prints the return value."), _("\
+Show whether `finish' prints the return value."), NULL,
+ NULL,
+ show_print_finish,
+ &setprintlist, &showprintlist);
}
projects / deliverable / binutils-gdb.git / blobdiff