/* Variables that describe the inferior process running under GDB:
Where it is, why it stopped, and how to step it.
- Copyright (C) 1986-2017 Free Software Foundation, Inc.
+ Copyright (C) 1986-2019 Free Software Foundation, Inc.
This file is part of GDB.
struct target_desc_info;
struct continuation;
struct inferior;
+struct thread_info;
/* For bpstat. */
#include "breakpoint.h"
#include "frame.h"
/* For gdb_environ. */
-#include "environ.h"
+#include "common/environ.h"
#include "progspace.h"
#include "registry.h"
#include "symfile-add-flags.h"
#include "common/refcounted-object.h"
+#include "common/forward-scope-exit.h"
-#include "common-inferior.h"
+#include "common/common-inferior.h"
+#include "gdbthread.h"
struct infcall_suspend_state;
struct infcall_control_state;
-extern struct infcall_suspend_state *save_infcall_suspend_state (void);
-extern struct infcall_control_state *save_infcall_control_state (void);
-
extern void restore_infcall_suspend_state (struct infcall_suspend_state *);
extern void restore_infcall_control_state (struct infcall_control_state *);
-extern struct cleanup *make_cleanup_restore_infcall_suspend_state
- (struct infcall_suspend_state *);
-extern struct cleanup *make_cleanup_restore_infcall_control_state
- (struct infcall_control_state *);
+/* A deleter for infcall_suspend_state that calls
+ restore_infcall_suspend_state. */
+struct infcall_suspend_state_deleter
+{
+ void operator() (struct infcall_suspend_state *state) const
+ {
+ restore_infcall_suspend_state (state);
+ }
+};
+
+/* A unique_ptr specialization for infcall_suspend_state. */
+typedef std::unique_ptr<infcall_suspend_state, infcall_suspend_state_deleter>
+ infcall_suspend_state_up;
+
+extern infcall_suspend_state_up save_infcall_suspend_state ();
+
+/* A deleter for infcall_control_state that calls
+ restore_infcall_control_state. */
+struct infcall_control_state_deleter
+{
+ void operator() (struct infcall_control_state *state) const
+ {
+ restore_infcall_control_state (state);
+ }
+};
+
+/* A unique_ptr specialization for infcall_control_state. */
+typedef std::unique_ptr<infcall_control_state, infcall_control_state_deleter>
+ infcall_control_state_up;
+
+extern infcall_control_state_up save_infcall_control_state ();
extern void discard_infcall_suspend_state (struct infcall_suspend_state *);
extern void discard_infcall_control_state (struct infcall_control_state *);
-extern struct regcache *
+extern readonly_detached_regcache *
get_infcall_suspend_state_regcache (struct infcall_suspend_state *);
extern void set_sigint_trap (void);
extern const char *get_inferior_io_terminal (void);
/* Collected pid, tid, etc. of the debugged inferior. When there's
- no inferior, ptid_get_pid (inferior_ptid) will be 0. */
+ no inferior, inferior_ptid.pid () will be 0. */
extern ptid_t inferior_ptid;
extern void child_terminal_inferior (struct target_ops *self);
+extern void child_terminal_save_inferior (struct target_ops *self);
+
extern void child_terminal_init (struct target_ops *self);
extern void child_terminal_init_with_pgrp (int pgrp);
+extern void child_pass_ctrlc (struct target_ops *self);
+
+extern void child_interrupt (struct target_ops *self);
+
/* From fork-child.c */
/* Helper function to call STARTUP_INFERIOR with PID and NUM_TRAPS.
extern void attach_command (const char *, int);
-extern char *get_inferior_args (void);
+extern const char *get_inferior_args (void);
extern void set_inferior_args (const char *);
extern void interrupt_target_1 (int all_threads);
-extern void delete_longjmp_breakpoint_cleanup (void *arg);
+using delete_longjmp_breakpoint_cleanup
+ = FORWARD_SCOPE_EXIT (delete_longjmp_breakpoint);
extern void detach_command (const char *, int);
-extern void notice_new_inferior (ptid_t, int, int);
+extern void notice_new_inferior (struct thread_info *, int, int);
extern struct value *get_return_value (struct value *function,
struct type *value_type);
the target is started up with a shell. */
extern int startup_with_shell;
-/* Address at which inferior stopped. */
-
-extern CORE_ADDR stop_pc;
-
/* Nonzero if stopped due to completion of a stack dummy routine. */
extern enum stop_stack_kind stop_stack_dummy;
extern int stopped_by_random_signal;
-/* STEP_OVER_ALL means step over all subroutine calls.
- STEP_OVER_UNDEBUGGABLE means step over calls to undebuggable functions.
- STEP_OVER_NONE means don't step over any subroutine calls. */
-
-enum step_over_calls_kind
- {
- STEP_OVER_NONE,
- STEP_OVER_ALL,
- STEP_OVER_UNDEBUGGABLE
- };
+/* Print notices on inferior events (attach, detach, etc.), set with
+ `set print inferior-events'. */
+extern int print_inferior_events;
/* Anything but NO_STOP_QUIETLY means we expect a trap and the caller
will handle it themselves. STOP_QUIETLY is used when running in
#define ON_STACK 1
#define AT_ENTRY_POINT 4
-struct private_inferior;
+/* Base class for target-specific inferior data. */
+
+struct private_inferior
+{
+ virtual ~private_inferior () = 0;
+};
/* Inferior process specific part of `struct infcall_control_state'.
struct inferior_control_state
{
+ inferior_control_state ()
+ : stop_soon (NO_STOP_QUIETLY)
+ {
+ }
+
+ explicit inferior_control_state (enum stop_kind when)
+ : stop_soon (when)
+ {
+ }
+
/* See the definition of stop_kind above. */
enum stop_kind stop_soon;
};
/* Pointer to next inferior in singly-linked list of inferiors. */
struct inferior *next = NULL;
+ /* This inferior's thread list. */
+ thread_info *thread_list = nullptr;
+
+ /* Returns a range adapter covering the inferior's threads,
+ including exited threads. Used like this:
+
+ for (thread_info *thr : inf->threads ())
+ { .... }
+ */
+ inf_threads_range threads ()
+ { return inf_threads_range (this->thread_list); }
+
+ /* Returns a range adapter covering the inferior's non-exited
+ threads. Used like this:
+
+ for (thread_info *thr : inf->non_exited_threads ())
+ { .... }
+ */
+ inf_non_exited_threads_range non_exited_threads ()
+ { return inf_non_exited_threads_range (this->thread_list); }
+
+ /* Like inferior::threads(), but returns a range adapter that can be
+ used with range-for, safely. I.e., it is safe to delete the
+ currently-iterated thread, like this:
+
+ for (thread_info *t : inf->threads_safe ())
+ if (some_condition ())
+ delete f;
+ */
+ inline safe_inf_threads_range threads_safe ()
+ { return safe_inf_threads_range (this->thread_list); }
+
/* Convenient handle (GDB inferior id). Unique across all
inferiors. */
int num = 0;
/* State of GDB control of inferior process execution.
See `struct inferior_control_state'. */
- inferior_control_state control {NO_STOP_QUIETLY};
+ inferior_control_state control;
/* True if this was an auto-created inferior, e.g. created from
following a fork; false, if this inferior was manually added by
/* The name of terminal device to use for I/O. */
char *terminal = NULL;
+ /* The terminal state as set by the last target_terminal::terminal_*
+ call. */
+ target_terminal_state terminal_state = target_terminal_state::is_ours;
+
/* Environment to use for running inferior,
in format described in environ.h. */
gdb_environ environment;
bool needs_setup = false;
/* Private data used by the target vector implementation. */
- private_inferior *priv = NULL;
+ std::unique_ptr<private_inferior> priv;
/* HAS_EXIT_CODE is true if the inferior exited with an exit code.
In this case, the EXIT_CODE field is also valid. */
this gdbarch. */
struct gdbarch *gdbarch = NULL;
+ /* Data related to displaced stepping. */
+ displaced_step_inferior_state displaced_step_state;
+
/* Per inferior data-pointers required by other GDB modules. */
REGISTRY_FIELDS;
};
extern void delete_inferior (struct inferior *todel);
/* Delete an existing inferior list entry, due to inferior detaching. */
-extern void detach_inferior (int pid);
+extern void detach_inferior (inferior *inf);
-extern void exit_inferior (int pid);
+extern void exit_inferior (inferior *inf);
-extern void exit_inferior_silent (int pid);
+extern void exit_inferior_silent (inferior *inf);
extern void exit_inferior_num_silent (int num);
/* Get rid of all inferiors. */
extern void discard_all_inferiors (void);
-/* Translate the integer inferior id (GDB's homegrown id, not the system's)
- into a "pid" (which may be overloaded with extra inferior information). */
-extern int gdb_inferior_id_to_pid (int);
-
-/* Translate a target 'pid' into the integer inferior id (GDB's
- homegrown id, not the system's). */
-extern int pid_to_gdb_inferior_id (int pid);
-
-/* Boolean test for an already-known pid. */
-extern int in_inferior_list (int pid);
-
-/* Boolean test for an already-known inferior id (GDB's homegrown id,
- not the system's). */
-extern int valid_gdb_inferior_id (int num);
-
/* Search function to lookup an inferior by target 'pid'. */
extern struct inferior *find_inferior_pid (int pid);
/* Traverse all inferiors. */
-#define ALL_INFERIORS(I) \
- for ((I) = inferior_list; (I); (I) = (I)->next)
+extern struct inferior *inferior_list;
-/* Traverse all non-exited inferiors. */
+/* Pull in the internals of the inferiors ranges and iterators. Must
+ be done after struct inferior is defined. */
+#include "inferior-iter.h"
-#define ALL_NON_EXITED_INFERIORS(I) \
- ALL_INFERIORS (I) \
- if ((I)->pid != 0)
+/* Return a range that can be used to walk over all inferiors
+ inferiors, with range-for, safely. I.e., it is safe to delete the
+ currently-iterated inferior. When combined with range-for, this
+ allow convenient patterns like this:
-extern struct inferior *inferior_list;
+ for (inferior *inf : all_inferiors_safe ())
+ if (some_condition ())
+ delete inf;
+*/
+
+inline all_inferiors_safe_range
+all_inferiors_safe ()
+{
+ return {};
+}
+
+/* Returns a range representing all inferiors, suitable to use with
+ range-for, like this:
+
+ for (inferior *inf : all_inferiors ())
+ [...]
+*/
+
+inline all_inferiors_range
+all_inferiors ()
+{
+ return {};
+}
+
+/* Return a range that can be used to walk over all inferiors with PID
+ not zero, with range-for. */
+
+inline all_non_exited_inferiors_range
+all_non_exited_inferiors ()
+{
+ return {};
+}
/* Prune away automatically added inferiors that aren't required
anymore. */
projects / deliverable / binutils-gdb.git / blobdiff