/* Memory-access and commands for "inferior" process, for GDB.
- Copyright (C) 1986-2020 Free Software Foundation, Inc.
+ Copyright (C) 1986-2021 Free Software Foundation, Inc.
This file is part of GDB.
#include "inline-frame.h"
#include "tracepoint.h"
#include "inf-loop.h"
-#include "continuations.h"
#include "linespec.h"
#include "thread-fsm.h"
#include "top.h"
static void step_1 (int, int, const char *);
#define ERROR_NO_INFERIOR \
- if (!target_has_execution) error (_("The program is not being run."));
+ if (!target_has_execution ()) error (_("The program is not being run."));
/* Scratch area where string containing arguments to give to the
program will be stored by 'set args'. As soon as anything is
int stopped_by_random_signal;
\f
-/* Accessor routines. */
-
-/* Set the io terminal for the current inferior. Ownership of
- TERMINAL_NAME is not transferred. */
-
-void
-set_inferior_io_terminal (const char *terminal_name)
-{
- xfree (current_inferior ()->terminal);
-
- if (terminal_name != NULL && *terminal_name != '\0')
- current_inferior ()->terminal = xstrdup (terminal_name);
- else
- current_inferior ()->terminal = NULL;
-}
-
-const char *
-get_inferior_io_terminal (void)
-{
- return current_inferior ()->terminal;
-}
static void
set_inferior_tty_command (const char *args, int from_tty,
{
/* CLI has assigned the user-provided value to inferior_io_terminal_scratch.
Now route it to current inferior. */
- set_inferior_io_terminal (inferior_io_terminal_scratch);
+ current_inferior ()->set_tty (inferior_io_terminal_scratch);
}
static void
{
/* Note that we ignore the passed-in value in favor of computing it
directly. */
- const char *inferior_io_terminal = get_inferior_io_terminal ();
+ const char *inferior_tty = current_inferior ()->tty ();
- if (inferior_io_terminal == NULL)
- inferior_io_terminal = "";
+ if (inferior_tty == nullptr)
+ inferior_tty = "";
fprintf_filtered (gdb_stdout,
_("Terminal for future runs of program being debugged "
- "is \"%s\".\n"), inferior_io_terminal);
+ "is \"%s\".\n"), inferior_tty);
}
const char *
{
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)
- current_inferior ()->args = xstrdup ("");
+ current_inferior ()->args = make_unique_xstrdup ("");
- return current_inferior ()->args;
+ return current_inferior ()->args.get ();
}
/* Set the arguments for the current inferior. Ownership of
void
set_inferior_args (const char *newargs)
{
- xfree (current_inferior ()->args);
- current_inferior ()->args = newargs ? xstrdup (newargs) : NULL;
+ if (newargs != nullptr)
+ current_inferior ()->args = make_unique_xstrdup (newargs);
+ else
+ current_inferior ()->args.reset ();
+
current_inferior ()->argc = 0;
current_inferior ()->argv = 0;
}
"when starting the inferior is \"%s\".\n"), cwd);
}
-\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++ = ' ';
-
- /* Need to handle empty arguments specially. */
- if (argv[i][0] == '\0')
- {
- *out++ = quote;
- *out++ = quote;
- }
- else
- {
-#ifdef __MINGW32__
- int quoted = 0;
-
- 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';
- }
- else
- {
- /* In this case we can't handle arguments that contain spaces,
- tabs, or newlines -- see breakup_args(). */
- int i;
- int length = 0;
-
- 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;
- }
-
- result = (char *) xmalloc (length);
- result[0] = '\0';
- for (i = 0; i < argc; ++i)
- {
- if (i > 0)
- strcat (result, " ");
- strcat (result, argv[i]);
- }
- }
-
- return result;
-}
-\f
/* This function strips the '&' character (indicating background
execution) that is added as *the last* of the arguments ARGS of a
should be stopped. */
void
-post_create_inferior (struct target_ops *target, int from_tty)
+post_create_inferior (int from_tty)
{
/* Be sure we own the terminal in case write operations are performed. */
thr->suspend.stop_pc = 0;
try
{
- thr->suspend.stop_pc = regcache_read_pc (get_current_regcache ());
+ regcache *rc = get_thread_regcache (thr);
+ thr->suspend.stop_pc = regcache_read_pc (rc);
}
catch (const gdb_exception_error &ex)
{
throw;
}
- if (exec_bfd)
+ if (current_program_space->exec_bfd ())
{
const unsigned solib_add_generation
= current_program_space->solib_add_generation;
+ scoped_restore restore_in_initial_library_scan
+ = make_scoped_restore (¤t_inferior ()->in_initial_library_scan,
+ true);
+
/* Create the hooks to handle shared library load and unload
events. */
solib_create_inferior_hook (from_tty);
if the now pushed target supports hardware watchpoints. */
breakpoint_re_set ();
- gdb::observers::inferior_created.notify (target, from_tty);
+ gdb::observers::inferior_created.notify (current_inferior ());
}
/* Kill the inferior if already running. This function is designed
static void
kill_if_already_running (int from_tty)
{
- if (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. */
dont_repeat ();
+ scoped_disable_commit_resumed disable_commit_resumed ("running");
+
kill_if_already_running (from_tty);
init_wait_for_inferior ();
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. */
- ptid_t finish_ptid = (non_stop
- ? ptid_t (current_inferior ()->pid)
- : minus_one_ptid);
- scoped_finish_thread_state finish_state (finish_ptid);
+ process_stratum_target *finish_target;
+ ptid_t finish_ptid;
+ if (non_stop)
+ {
+ finish_target = current_inferior ()->process_target ();
+ finish_ptid = ptid_t (current_inferior ()->pid);
+ }
+ else
+ {
+ 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 (current_top_target (), 0);
+ post_create_inferior (0);
/* Queue a pending event so that the program stops immediately. */
if (run_how == RUN_STOP_AT_FIRST_INSN)
/* Since there was no error, there's no need to finish the thread
states here. */
finish_state.release ();
+
+ disable_commit_resumed.reset_and_commit ();
}
static void
if (thread->state != THREAD_STOPPED)
return 0;
+ if (!thread->inf->has_execution ())
+ return 0;
+
switch_to_thread (thread);
clear_proceed_status (0);
proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT);
continue_command (const char *args, int from_tty)
{
int async_exec;
- int all_threads = 0;
+ bool all_threads_p = false;
ERROR_NO_INFERIOR;
{
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."));
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;
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 (current_top_target (), async_exec);
+ prepare_execution_command (current_inferior ()->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)
{
+ /* This can be removed once this function no longer implicitly relies on the
+ inferior_ptid value. */
+ gdb_assert (inferior_ptid == tp->ptid);
+
frame_info *frame = get_current_frame ();
symtab_and_line sal = find_frame_sal (frame);
- set_step_info (frame, sal);
+ set_step_info (tp, frame, sal);
CORE_ADDR pc = get_frame_pc (frame);
- thread_info *tp = inferior_thread ();
tp->control.step_start_function = find_pc_function (pc);
}
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, const char *count_string)
= strip_bg_char (count_string, &async_exec);
count_string = stripped.get ();
- prepare_execution_command (current_top_target (), async_exec);
+ prepare_execution_command (current_inferior ()->top_target (), async_exec);
count = count_string ? parse_and_eval_long (count_string) : 1;
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
{
thr->thread_fsm->clean_up (thr);
proceeded = normal_stop ();
if (!proceeded)
- inferior_event_handler (INF_EXEC_COMPLETE, NULL);
+ inferior_event_handler (INF_EXEC_COMPLETE);
all_uis_check_sync_execution_done ();
}
}
/* There are more steps to make, and we did stop due to
ending a stepping range. Do another step. */
if (--count > 0)
- return prepare_one_step (this);
+ return prepare_one_step (tp, this);
set_finished ();
}
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)
{
/* 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 (tp);
|| !function_name_is_marked_for_skip (fn, sal))
{
sm->count--;
- return prepare_one_step (sm);
+ return prepare_one_step (tp, sm);
}
}
&tp->control.step_range_start,
&tp->control.step_range_end);
+ /* There's a problem in gcc (PR gcc/98780) that causes missing line
+ table entries, which results in a too large stepping range.
+ Use inlined_subroutine info to make the range more narrow. */
+ if (inline_skipped_frames (tp) > 0)
+ {
+ symbol *sym = inline_skipped_symbol (tp);
+ if (SYMBOL_CLASS (sym) == LOC_BLOCK)
+ {
+ const block *block = SYMBOL_BLOCK_VALUE (sym);
+ if (BLOCK_END (block) < tp->control.step_range_end)
+ tp->control.step_range_end = BLOCK_END (block);
+ }
+ }
+
tp->control.may_range_step = 1;
/* If we have no line info, switch to stepi mode. */
gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec);
arg = stripped.get ();
- prepare_execution_command (current_top_target (), async_exec);
+ prepare_execution_command (current_inferior ()->top_target (), async_exec);
if (!arg)
error_no_arg (_("starting address"));
struct obj_section *section;
fixup_symbol_section (sfn, 0);
- section = SYMBOL_OBJ_SECTION (symbol_objfile (sfn), sfn);
+ section = sfn->obj_section (symbol_objfile (sfn));
if (section_is_overlay (section)
&& !section_is_mapped (section))
{
= strip_bg_char (signum_exp, &async_exec);
signum_exp = stripped.get ();
- prepare_execution_command (current_top_target (), async_exec);
+ prepare_execution_command (current_inferior ()->top_target (), async_exec);
if (!signum_exp)
error_no_arg (_("signal number"));
/* This indicates what will be resumed. Either a single thread,
a whole process, or all threads of all processes. */
ptid_t resume_ptid = user_visible_resume_ptid (0);
+ process_stratum_target *resume_target
+ = user_visible_resume_target (resume_ptid);
+
+ thread_info *current = inferior_thread ();
- for (thread_info *tp : all_non_exited_threads (resume_ptid))
+ for (thread_info *tp : all_non_exited_threads (resume_target, resume_ptid))
{
- if (tp->ptid == inferior_ptid)
+ if (tp == current)
continue;
if (tp->suspend.stop_signal != GDB_SIGNAL_0
struct until_next_fsm *sm;
clear_proceed_status (0);
- set_step_frame ();
+ set_step_frame (tp);
frame = get_current_frame ();
gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec);
arg = stripped.get ();
- prepare_execution_command (current_top_target (), async_exec);
+ prepare_execution_command (current_inferior ()->top_target (), async_exec);
if (arg)
until_break_command (arg, from_tty, 0);
gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec);
arg = stripped.get ();
- prepare_execution_command (current_top_target (), async_exec);
+ prepare_execution_command (current_inferior ()->top_target (), async_exec);
until_break_command (arg, from_tty, 1);
}
struct value *value;
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)
calls are made async, this will likely be made the norm. */
switch (gdbarch_return_value (gdbarch, function, value_type,
- NULL, NULL, NULL))
+ NULL, NULL, NULL))
{
case RETURN_VALUE_REGISTER_CONVENTION:
case RETURN_VALUE_ABI_RETURNS_ADDRESS:
{
std::string type_name = type_to_string (rv->type);
uiout->text ("Value returned has type: ");
- uiout->field_string ("return-type", type_name.c_str ());
+ uiout->field_string ("return-type", type_name);
uiout->text (".");
uiout->text (" Cannot determine contents\n");
}
print_return_value (struct ui_out *uiout, struct return_value_info *rv)
{
if (rv->type == NULL
- || TYPE_CODE (check_typedef (rv->type)) == TYPE_CODE_VOID)
+ || check_typedef (rv->type)->code () == TYPE_CODE_VOID)
return;
try
internal_error (__FILE__, __LINE__,
_("finish_command: function has no target type"));
- if (TYPE_CODE (check_typedef (rv->type)) != TYPE_CODE_VOID)
+ if (check_typedef (rv->type)->code () != TYPE_CODE_VOID)
{
struct value *func;
gdb::unique_xmalloc_ptr<char> stripped = strip_bg_char (arg, &async_exec);
arg = stripped.get ();
- prepare_execution_command (current_top_target (), async_exec);
+ prepare_execution_command (current_inferior ()->top_target (), async_exec);
if (arg)
error (_("The \"finish\" command does not take any arguments."));
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. */
- set_step_info (frame, {});
+ 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;
bpstat bs;
int num, stat;
ptid_t ptid;
+ process_stratum_target *proc_target;
- if (!target_has_execution)
+ if (!target_has_execution ())
{
printf_filtered (_("The program being debugged is not being run.\n"));
return;
}
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."));
- thread_info *tp = find_thread_ptid (ptid);
+ thread_info *tp = find_thread_ptid (proc_target, ptid);
if (tp->state == THREAD_EXITED)
error (_("Invalid selected thread."));
else if (stat != 0)
{
/* There may be several breakpoints in the same place, so this
- isn't as strange as it seems. */
+ isn't as strange as it seems. */
while (stat != 0)
{
if (stat < 0)
if (p != 0 && val != 0)
{
/* We have both a space and an equals. If the space is before the
- equals, walk forward over the spaces til we see a nonspace
- (possibly the equals). */
+ equals, walk forward over the spaces til we see a nonspace
+ (possibly the equals). */
if (p > val)
while (*val == ' ')
val++;
/* Now if the = is after the char following the spaces,
- take the char following the spaces. */
+ take the char following the spaces. */
if (p > val)
p = val - 1;
}
if (var == 0)
{
/* If there is no argument, delete all environment variables.
- Ask for confirmation if reading from the terminal. */
+ Ask for confirmation if reading from the terminal. */
if (!from_tty || query (_("Delete all environment variables? ")))
current_inferior ()->environment.clear ();
}
{
value_column_1 = 15,
/* Give enough room for "0x", 16 hex digits and two spaces in
- preceding column. */
+ preceding column. */
value_column_2 = value_column_1 + 2 + 16 + 2,
};
/* 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);
get_user_print_options (&opts);
opts.deref_ref = 1;
- val_print (regtype,
- value_embedded_offset (val), 0,
- &format_stream, 0, val, &opts, current_language);
+ common_val_print (val, &format_stream, 0, &opts, current_language);
if (print_raw_format)
{
/* Print the register in hex. */
get_formatted_print_options (&opts, 'x');
opts.deref_ref = 1;
- val_print (regtype,
- value_embedded_offset (val), 0,
- &format_stream, 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)
+ if (print_raw_format && regtype->is_vector () == 0)
{
pad_to_column (format_stream, value_column_2);
get_user_print_options (&opts);
opts.deref_ref = 1;
- val_print (regtype,
- value_embedded_offset (val), 0,
- &format_stream, 0, val, &opts, current_language);
+ common_val_print (val, &format_stream, 0, &opts, current_language);
}
}
for (i = 0; i < numregs; i++)
{
/* Decide between printing all regs, non-float / vector regs, or
- specific reg. */
+ specific reg. */
if (regnum == -1)
{
if (print_all)
}
/* If the register name is empty, it is undefined for this
- processor, so don't display anything. */
+ processor, so don't display anything. */
if (gdbarch_register_name (gdbarch, i) == NULL
|| *(gdbarch_register_name (gdbarch, i)) == '\0')
continue;
struct frame_info *frame;
struct gdbarch *gdbarch;
- if (!target_has_registers)
+ if (!target_has_registers ())
error (_("The program has no registers now."));
frame = get_selected_frame (NULL);
gdbarch = get_frame_arch (frame);
addr_exp = skip_spaces (addr_exp);
/* Discard any leading ``$''. Check that there is something
- resembling a register following it. */
+ resembling a register following it. */
if (addr_exp[0] == '$')
addr_exp++;
if (isspace ((*addr_exp)) || (*addr_exp) == '\0')
static void
info_vector_command (const char *args, int from_tty)
{
- if (!target_has_registers)
+ if (!target_has_registers ())
error (_("The program has no registers now."));
print_vector_info (gdb_stdout, get_selected_frame (NULL), args);
/* Take any necessary post-attaching actions for this platform. */
target_post_attach (inferior_ptid.pid ());
- post_create_inferior (current_top_target (), from_tty);
+ post_create_inferior (from_tty);
}
/* What to do after the first program stops after attaching. */
};
/* Called after we've attached to a process and we've seen it stop for
- the first time. If ASYNC_EXEC is true, re-resume threads that
- should be running. Else if ATTACH, */
+ the first time. Resume, stop, or don't touch the threads according
+ to MODE. */
static void
-attach_post_wait (const char *args, int from_tty, enum attach_post_wait_mode mode)
+attach_post_wait (int from_tty, enum attach_post_wait_mode mode)
{
struct inferior *inferior;
/* The user requested an `attach&', so be sure to leave threads
that didn't get a signal running. */
- /* Immediatelly resume all suspended threads of this inferior,
+ /* Immediately resume all suspended threads of this inferior,
and this inferior only. This should have no effect on
already running threads. If a thread has been stopped with a
signal, leave it be. */
}
}
-struct attach_command_continuation_args
-{
- char *args;
- int from_tty;
- enum attach_post_wait_mode mode;
-};
-
-static void
-attach_command_continuation (void *args, int err)
-{
- struct attach_command_continuation_args *a
- = (struct attach_command_continuation_args *) args;
-
- if (err)
- return;
-
- attach_post_wait (a->args, a->from_tty, a->mode);
-}
-
-static void
-attach_command_continuation_free_args (void *args)
-{
- struct attach_command_continuation_args *a
- = (struct attach_command_continuation_args *) args;
-
- xfree (a->args);
- xfree (a);
-}
-
/* "attach" command entry point. Takes a program started up outside
of gdb and ``attaches'' to it. This stops it cold in its tracks
and allows us to start debugging it. */
dont_repeat (); /* Not for the faint of heart */
+ scoped_disable_commit_resumed disable_commit_resumed ("attaching");
+
if (gdbarch_has_global_solist (target_gdbarch ()))
/* Don't complain if all processes share the same symbol
space. */
;
- else if (target_has_execution)
+ else if (target_has_execution ())
{
if (query (_("A program is being debugged already. Kill it? ")))
target_kill ();
/* Set up execution context to know that we should return from
wait_for_inferior as soon as the target reports a stop. */
init_wait_for_inferior ();
- clear_proceed_status (0);
inferior->needs_setup = 1;
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 ())
{
- struct attach_command_continuation_args *a;
-
/* Careful here. See comments in inferior.h. Basically some
OSes don't ignore SIGSTOPs on continue requests anymore. We
need a way for handle_inferior_event to reset the stop_signal
inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP;
/* Wait for stop. */
- a = XNEW (struct attach_command_continuation_args);
- a->args = xstrdup (args);
- a->from_tty = from_tty;
- a->mode = mode;
- add_inferior_continuation (attach_command_continuation, a,
- attach_command_continuation_free_args);
+ inferior->add_continuation ([=] ()
+ {
+ attach_post_wait (from_tty, mode);
+ });
+
+ /* 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;
}
+ else
+ attach_post_wait (from_tty, mode);
- attach_post_wait (args, from_tty, mode);
+ disable_commit_resumed.reset_and_commit ();
}
/* We had just found out that the target was already attached to an
as stopped. */
void
-notice_new_inferior (thread_info *thr, int leave_running, int from_tty)
+notice_new_inferior (thread_info *thr, bool leave_running, int from_tty)
{
enum attach_post_wait_mode mode
= leave_running ? ATTACH_POST_WAIT_RESUME : ATTACH_POST_WAIT_NOTHING;
if (thr->executing)
{
- struct attach_command_continuation_args *a;
struct inferior *inferior = current_inferior ();
/* We're going to install breakpoints, and poke at memory,
inferior->control.stop_soon = STOP_QUIETLY_REMOTE;
/* Wait for stop before proceeding. */
- a = XNEW (struct attach_command_continuation_args);
- a->args = xstrdup ("");
- a->from_tty = from_tty;
- a->mode = mode;
- add_inferior_continuation (attach_command_continuation, a,
- attach_command_continuation_free_args);
+ inferior->add_continuation ([=] ()
+ {
+ attach_post_wait (from_tty, mode);
+ });
return;
}
- attach_post_wait ("" /* args */, from_tty, mode);
+ attach_post_wait (from_tty, mode);
}
/*
if (inferior_ptid == null_ptid)
error (_("The program is not being run."));
+ scoped_disable_commit_resumed disable_commit_resumed ("detaching");
+
query_if_trace_running (from_tty);
disconnect_tracing ();
+ /* Hold a strong reference to the target while (maybe)
+ detaching the parent. Otherwise detaching could close the
+ target. */
+ auto target_ref
+ = target_ops_ref::new_reference (current_inferior ()->process_target ());
+
+ /* Save this before detaching, since detaching may unpush the
+ process_stratum target. */
+ bool was_non_stop_p = target_is_non_stop_p ();
+
target_detach (current_inferior (), from_tty);
/* The current inferior process was just detached successfully. Get
if (deprecated_detach_hook)
deprecated_detach_hook ();
+
+ if (!was_non_stop_p)
+ restart_after_all_stop_detach (as_process_stratum_target (target_ref.get ()));
+
+ disable_commit_resumed.reset_and_commit ();
}
/* Disconnect from the current target without resuming it (leaving it
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 ();
+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)
+{
+ scoped_disable_commit_resumed disable_commit_resumed ("interrupting");
+
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 ();
+
+ disable_commit_resumed.reset_and_commit ();
}
/* interrupt [-a]
{
struct frame_info *frame;
- if (!target_has_registers)
+ if (!target_has_registers ())
error (_("The program has no registers now."));
frame = get_selected_frame (NULL);
gdbarch_print_float_info (get_frame_arch (frame), gdb_stdout, frame, args);
}
\f
-static void
-unset_command (const 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
\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;
show_inferior_tty_command,
&setlist, &showlist);
cmd_name = "inferior-tty";
- c = lookup_cmd (&cmd_name, setlist, "", -1, 1);
+ c = lookup_cmd (&cmd_name, setlist, "", NULL, -1, 1);
gdb_assert (c != NULL);
- add_alias_cmd ("tty", c, class_alias, 0, &cmdlist);
+ add_alias_cmd ("tty", c, class_run, 0, &cmdlist);
cmd_name = "args";
add_setshow_string_noescape_cmd (cmd_name, class_run,
set_args_command,
show_args_command,
&setlist, &showlist);
- c = lookup_cmd (&cmd_name, setlist, "", -1, 1);
+ c = lookup_cmd (&cmd_name, setlist, "", NULL, -1, 1);
gdb_assert (c != NULL);
set_cmd_completer (c, filename_completer);
set_cwd_command,
show_cwd_command,
&setlist, &showlist);
- c = lookup_cmd (&cmd_name, setlist, "", -1, 1);
+ c = lookup_cmd (&cmd_name, setlist, "", NULL, -1, 1);
gdb_assert (c != NULL);
set_cmd_completer (c, filename_completer);
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, 0, &cmdlist);
c = add_cmd ("environment", class_run, unset_environment_command, _("\
Cancel environment variable VAR for the program.\n\
add_prefix_cmd ("kill", class_run, kill_command,
_("Kill execution of program being debugged."),
- &killlist, "kill ", 0, &cmdlist);
+ &killlist, 0, &cmdlist);
add_com ("attach", class_run, attach_command, _("\
Attach to a process or file outside of GDB.\n\
Detach a process or file previously attached.\n\
If a process, it is no longer traced, and it continues its execution. If\n\
you were debugging a file, the file is closed and gdb no longer accesses it."),
- &detachlist, "detach ", 0, &cmdlist);
+ &detachlist, 0, &cmdlist);
add_com ("disconnect", class_run, disconnect_command, _("\
Disconnect from a target.\n\
the current thread only."));
set_cmd_completer (c, signal_completer);
- add_com ("stepi", class_run, stepi_command, _("\
+ cmd_list_element *stepi_cmd
+ = add_com ("stepi", class_run, stepi_command, _("\
Step one instruction exactly.\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_cmd, class_run, 0);
- add_com ("nexti", class_run, nexti_command, _("\
+ cmd_list_element *nexti_cmd
+ = 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_cmd, class_run, 0);
- add_com ("finish", class_run, finish_command, _("\
+ cmd_list_element *finish_cmd
+ = add_com ("finish", class_run, finish_command, _("\
Execute until selected stack frame returns.\n\
Usage: finish\n\
Upon return, the value returned is printed and put in the value history."));
- add_com_alias ("fin", "finish", class_run, 1);
+ add_com_alias ("fin", finish_cmd, class_run, 1);
- add_com ("next", class_run, next_command, _("\
+ cmd_list_element *next_cmd
+ = add_com ("next", class_run, next_command, _("\
Step program, proceeding through subroutine calls.\n\
Usage: next [N]\n\
Unlike \"step\", if the current source line calls a subroutine,\n\
this command does not enter the subroutine, but instead steps over\n\
the call, in effect treating it as a single source line."));
- add_com_alias ("n", "next", class_run, 1);
+ add_com_alias ("n", next_cmd, class_run, 1);
- add_com ("step", class_run, step_command, _("\
+ cmd_list_element *step_cmd
+ = add_com ("step", class_run, step_command, _("\
Step program until it reaches a different source line.\n\
Usage: step [N]\n\
Argument N means step N times (or till program stops for another \
reason)."));
- add_com_alias ("s", "step", class_run, 1);
+ add_com_alias ("s", step_cmd, class_run, 1);
- c = add_com ("until", class_run, until_command, _("\
+ cmd_list_element *until_cmd
+ = 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."));
- set_cmd_completer (c, location_completer);
- add_com_alias ("u", "until", class_run, 1);
+ set_cmd_completer (until_cmd, location_completer);
+ add_com_alias ("u", until_cmd, class_run, 1);
c = add_com ("advance", class_run, advance_command, _("\
Continue the program up to the given location (same form as args for break \
Execution will also stop upon exit from the current stack frame."));
set_cmd_completer (c, location_completer);
- c = add_com ("jump", class_run, jump_command, _("\
+ cmd_list_element *jump_cmd
+ = add_com ("jump", class_run, jump_command, _("\
Continue program being debugged at specified line or address.\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 ("j", "jump", class_run, 1);
+ set_cmd_completer (jump_cmd, location_completer);
+ add_com_alias ("j", jump_cmd, class_run, 1);
- add_com ("continue", class_run, continue_command, _("\
+ cmd_list_element *continue_cmd
+ = add_com ("continue", class_run, continue_command, _("\
Continue program being debugged, after signal or breakpoint.\n\
Usage: continue [N]\n\
If proceeding from breakpoint, a number N may be used as an argument,\n\
otherwise all the threads in the program are continued. To \n\
continue all stopped threads in non-stop mode, use the -a option.\n\
Specifying -a and an ignore count simultaneously is an error."));
- add_com_alias ("c", "cont", class_run, 1);
- add_com_alias ("fg", "cont", class_run, 1);
+ add_com_alias ("c", continue_cmd, class_run, 1);
+ add_com_alias ("fg", continue_cmd, class_run, 1);
- c = add_com ("run", class_run, run_command, _("\
+ cmd_list_element *run_cmd
+ = add_com ("run", class_run, run_command, _("\
Start debugged program.\n"
RUN_ARGS_HELP));
- set_cmd_completer (c, filename_completer);
- add_com_alias ("r", "run", class_run, 1);
+ set_cmd_completer (run_cmd, filename_completer);
+ add_com_alias ("r", run_cmd, class_run, 1);
c = add_com ("start", class_run, start_command, _("\
Start the debugged program stopping at the beginning of the main procedure.\n"
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", info_registers_command, _("\
+ cmd_list_element *info_registers_cmd
+ = add_info ("registers", info_registers_command, _("\
List of integer registers and their contents, for selected stack frame.\n\
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);
+ add_info_alias ("r", info_registers_cmd, 1);
+ set_cmd_completer (info_registers_cmd, reg_or_group_completer);
c = add_info ("all-registers", info_all_registers_command, _("\
List of all registers and their contents, for selected stack frame.\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 ",
+ &info_proc_cmdlist,
1/*allow-unknown*/, &infolist);
add_cmd ("mappings", class_info, info_proc_cmd_mappings, _("\
projects / deliverable / binutils-gdb.git / blobdiff