-/* Copyright (C) 1986-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1986-2018 Free Software Foundation, Inc.
This file is part of GDB.
#ifndef INFRUN_H
#define INFRUN_H 1
-#include "ptid.h"
#include "symtab.h"
+#include "common/byte-vector.h"
struct target_waitstatus;
struct frame_info;
struct address_space;
+struct return_value_info;
/* True if we are debugging run control. */
extern unsigned int debug_infrun;
of shared library events by the dynamic linker. */
extern int stop_on_solib_events;
-/* Are we simulating synchronous execution? This is used in async gdb
- to implement the 'run', 'continue' etc commands, which will not
- redisplay the prompt until the execution is actually over. */
-extern int sync_execution;
-
/* True if execution commands resume all threads of all processes by
default; otherwise, resume only threads of the current inferior
process. */
starting an inferior. */
extern int disable_randomization;
+/* Returns a unique identifier for the current stop. This can be used
+ to tell whether a command has proceeded the inferior past the
+ current location. */
+extern ULONGEST get_stop_id (void);
+
/* Reverse execution. */
enum exec_direction_kind
{
EXEC_REVERSE
};
-/* The current execution direction. This should only be set to enum
- exec_direction_kind values. It is only an int to make it
- compatible with make_cleanup_restore_integer. */
-extern int execution_direction;
-
-/* Save register contents here when executing a "finish" command or
- are about to pop a stack dummy frame, if-and-only-if
- proceed_to_finish is set. Thus this contains the return value from
- the called function (assuming values are returned in a
- register). */
-extern struct regcache *stop_registers;
+/* The current execution direction. */
+extern enum exec_direction_kind execution_direction;
extern void start_remote (int from_tty);
-extern void clear_proceed_status (void);
-
-extern void proceed (CORE_ADDR, enum gdb_signal, int);
-
-/* The `resume' routine should only be called in special circumstances.
- Normally, use `proceed', which handles a lot of bookkeeping. */
-extern void resume (int, enum gdb_signal);
-
+/* Clear out all variables saying what to do when inferior is
+ continued or stepped. First do this, then set the ones you want,
+ then call `proceed'. STEP indicates whether we're preparing for a
+ step/stepi command. */
+extern void clear_proceed_status (int step);
+
+extern void proceed (CORE_ADDR, enum gdb_signal);
+
+/* Return a ptid representing the set of threads that we will proceed,
+ in the perspective of the user/frontend. We may actually resume
+ fewer threads at first, e.g., if a thread is stopped at a
+ breakpoint that needs stepping-off, but that should not be visible
+ to the user/frontend, and neither should the frontend/user be
+ allowed to proceed any of the threads that happen to be stopped for
+ internal run control handling, if a previous command wanted them
+ resumed. */
extern ptid_t user_visible_resume_ptid (int step);
extern void wait_for_inferior (void);
-extern void normal_stop (void);
+/* Return control to GDB when the inferior stops for real. Print
+ appropriate messages, remove breakpoints, give terminal our modes,
+ and run the stop hook. Returns true if the stop hook proceeded the
+ target, false otherwise. */
+extern int normal_stop (void);
extern void get_last_target_status (ptid_t *ptid,
struct target_waitstatus *status);
+extern void set_last_target_status (ptid_t ptid,
+ struct target_waitstatus status);
+
+/* Stop all threads. Only returns after everything is halted. */
+extern void stop_all_threads (void);
+
extern void prepare_for_detach (void);
extern void fetch_inferior_event (void *);
struct symtab_and_line ,
struct frame_id);
-extern void follow_inferior_reset_breakpoints (void);
-
/* Returns true if we're trying to step past the instruction at
ADDRESS in ASPACE. */
extern int stepping_past_instruction_at (struct address_space *aspace,
CORE_ADDR address);
+/* Returns true if thread whose thread number is THREAD is stepping
+ over a breakpoint. */
+extern int thread_is_stepping_over_breakpoint (int thread);
+
+/* Returns true if we're trying to step past an instruction that
+ triggers a non-steppable watchpoint. */
+extern int stepping_past_nonsteppable_watchpoint (void);
+
extern void set_step_info (struct frame_info *frame,
struct symtab_and_line sal);
-extern void print_stop_event (struct target_waitstatus *ws);
+/* Several print_*_reason helper functions to print why the inferior
+ has stopped to the passed in UIOUT. */
+
+/* Signal received, print why the inferior has stopped. */
+extern void print_signal_received_reason (struct ui_out *uiout,
+ enum gdb_signal siggnal);
+
+/* Print why the inferior has stopped. We are done with a
+ step/next/si/ni command, print why the inferior has stopped. */
+extern void print_end_stepping_range_reason (struct ui_out *uiout);
+
+/* The inferior was terminated by a signal, print why it stopped. */
+extern void print_signal_exited_reason (struct ui_out *uiout,
+ enum gdb_signal siggnal);
+
+/* The inferior program is finished, print why it stopped. */
+extern void print_exited_reason (struct ui_out *uiout, int exitstatus);
+
+/* Reverse execution: target ran out of history info, print why the
+ inferior has stopped. */
+extern void print_no_history_reason (struct ui_out *uiout);
+
+/* Print the result of a function at the end of a 'finish' command.
+ RV points at an object representing the captured return value/type
+ and its position in the value history. */
+
+extern void print_return_value (struct ui_out *uiout,
+ struct return_value_info *rv);
+
+/* Print current location without a level number, if we have changed
+ functions or hit a breakpoint. Print source line if we have one.
+ If the execution command captured a return value, print it. */
+
+extern void print_stop_event (struct ui_out *uiout);
+
+/* Pretty print the results of target_wait, for debugging purposes. */
+
+extern void print_target_wait_results (ptid_t waiton_ptid, ptid_t result_ptid,
+ const struct target_waitstatus *ws);
extern int signal_stop_state (int);
systems. Use of symbolic signal names is strongly encouraged. */
enum gdb_signal gdb_signal_from_command (int num);
+/* Enables/disables infrun's async event source in the event loop. */
+extern void infrun_async (int enable);
+
+/* Call infrun's event handler the next time through the event
+ loop. */
+extern void mark_infrun_async_event_handler (void);
+
+/* The global queue of threads that need to do a step-over operation
+ to get past e.g., a breakpoint. */
+extern struct thread_info *step_over_queue_head;
+
+/* Remove breakpoints if possible (usually that means, if everything
+ is stopped). On failure, print a message. */
+extern void maybe_remove_breakpoints (void);
+
+/* If a UI was in sync execution mode, and now isn't, restore its
+ prompt (a synchronous execution command has finished, and we're
+ ready for input). */
+extern void all_uis_check_sync_execution_done (void);
+
+/* If a UI was in sync execution mode, and hasn't displayed the prompt
+ yet, re-disable its prompt (a synchronous execution command was
+ started or re-started). */
+extern void all_uis_on_sync_execution_starting (void);
+
+/* Base class for displaced stepping closures (the arch-specific data). */
+
+struct displaced_step_closure
+{
+ virtual ~displaced_step_closure () = 0;
+};
+
+/* A simple displaced step closure that contains only a byte buffer. */
+
+struct buf_displaced_step_closure : displaced_step_closure
+{
+ buf_displaced_step_closure (int buf_size)
+ : buf (buf_size)
+ {}
+
+ gdb::byte_vector buf;
+};
+
#endif /* INFRUN_H */
projects / deliverable / binutils-gdb.git / blobdiff