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[platform/upstream/binutils.git] / gdb / inferior.h

diff --git a/gdb/inferior.h b/gdb/inferior.h
index 3945962..e716005 100644 (file)
--- a/gdb/inferior.h
+++ b/gdb/inferior.h
@@ -1,8 +1,7 @@
 /* Variables that describe the inferior process running under GDB:
    Where it is, why it stopped, and how to step it.
 
 /* Variables that describe the inferior process running under GDB:
    Where it is, why it stopped, and how to step it.
 

-   Copyright (C) 1986, 1988-1996, 1998-2001, 2003-2012 Free Software
-   Foundation, Inc.
+   Copyright (C) 1986-2014 Free Software Foundation, Inc.

 
    This file is part of GDB.
 
 
    This file is part of GDB.
 


@@ -30,8 +29,7 @@ struct gdbarch;
 struct regcache;
 struct ui_out;
 struct terminal_info;
 struct regcache;
 struct ui_out;
 struct terminal_info;

-
-#include "ptid.h"
+struct target_desc_info;

 
 /* For bpstat.  */
 #include "breakpoint.h"
 
 /* For bpstat.  */
 #include "breakpoint.h"


@@ -43,6 +41,7 @@ struct terminal_info;
 #include "frame.h"
 
 #include "progspace.h"
 #include "frame.h"
 
 #include "progspace.h"

+#include "registry.h"

 
 struct infcall_suspend_state;
 struct infcall_control_state;
 
 struct infcall_suspend_state;
 struct infcall_control_state;


@@ -64,16 +63,6 @@ extern void discard_infcall_control_state (struct infcall_control_state *);
 extern struct regcache *
   get_infcall_suspend_state_regcache (struct infcall_suspend_state *);
 
 extern struct regcache *
   get_infcall_suspend_state_regcache (struct infcall_suspend_state *);
 

-/* Returns true if PTID matches filter FILTER.  FILTER can be the wild
-   card MINUS_ONE_PTID (all ptid match it); can be a ptid representing
-   a process (ptid_is_pid returns true), in which case, all lwps and
-   threads of that given process match, lwps and threads of other
-   processes do not; or, it can represent a specific thread, in which
-   case, only that thread will match true.  PTID must represent a
-   specific LWP or THREAD, it can never be a wild card.  */
-
-extern int ptid_match (ptid_t ptid, ptid_t filter);
-

 /* Save value of inferior_ptid so that it may be restored by
    a later call to do_cleanups().  Returns the struct cleanup
    pointer needed for later doing the cleanup.  */
 /* Save value of inferior_ptid so that it may be restored by
    a later call to do_cleanups().  Returns the struct cleanup
    pointer needed for later doing the cleanup.  */


@@ -89,50 +78,12 @@ extern void set_inferior_io_terminal (const char *terminal_name);
 extern const char *get_inferior_io_terminal (void);
 
 /* Collected pid, tid, etc. of the debugged inferior.  When there's
 extern const char *get_inferior_io_terminal (void);
 
 /* Collected pid, tid, etc. of the debugged inferior.  When there's

-   no inferior, PIDGET (inferior_ptid) will be 0.  */
+   no inferior, ptid_get_pid (inferior_ptid) will be 0.  */

 
 extern ptid_t inferior_ptid;
 
 
 extern ptid_t inferior_ptid;
 

-/* 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;
-
-/* Inferior environment.  */
-
-extern void clear_proceed_status (void);
-
-extern void proceed (CORE_ADDR, enum gdb_signal, int);
-
-extern int sched_multi;
-
-/* When set, stop the 'step' command if we enter a function which has
-   no line number information.  The normal behavior is that we step
-   over such function.  */
-extern int step_stop_if_no_debug;
-
-/* If set, the inferior should be controlled in non-stop mode.  In
-   this mode, each thread is controlled independently.  Execution
-   commands apply only to the selected thread by default, and stop
-   events stop only the thread that had the event -- the other threads
-   are kept running freely.  */
-extern int non_stop;
-
-/* If set (default), when following a fork, GDB will detach from one
-   the fork branches, child or parent.  Exactly which branch is
-   detached depends on 'set follow-fork-mode' setting.  */
-extern int detach_fork;
-
-/* When set (default), the target should attempt to disable the operating
-   system's address space randomization feature when starting an inferior.  */
-extern int disable_randomization;
-

 extern void generic_mourn_inferior (void);
 
 extern void generic_mourn_inferior (void);
 

-extern void terminal_save_ours (void);
-
-extern void terminal_ours (void);
-

 extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch,
                                              struct type *type,
                                              const gdb_byte *buf);
 extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch,
                                              struct type *type,
                                              const gdb_byte *buf);


@@ -146,27 +97,8 @@ extern void address_to_signed_pointer (struct gdbarch *gdbarch,
                                       struct type *type, gdb_byte *buf,
                                       CORE_ADDR addr);
 
                                       struct type *type, gdb_byte *buf,
                                       CORE_ADDR addr);
 

-extern void wait_for_inferior (void);
-
-extern void prepare_for_detach (void);
-
-extern void fetch_inferior_event (void *);
-
-extern void init_wait_for_inferior (void);
-

 extern void reopen_exec_file (void);
 
 extern void reopen_exec_file (void);
 

-/* 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);
-
-extern ptid_t user_visible_resume_ptid (int step);
-
-extern void insert_step_resume_breakpoint_at_sal (struct gdbarch *,
-                                                 struct symtab_and_line ,
-                                                 struct frame_id);
-

 /* From misc files */
 
 extern void default_print_registers_info (struct gdbarch *gdbarch,
 /* From misc files */
 
 extern void default_print_registers_info (struct gdbarch *gdbarch,


@@ -174,17 +106,19 @@ extern void default_print_registers_info (struct gdbarch *gdbarch,
                                          struct frame_info *frame,
                                          int regnum, int all);
 
                                          struct frame_info *frame,
                                          int regnum, int all);
 

-extern void child_terminal_info (char *, int);
+extern void child_terminal_info (struct target_ops *self, const char *, int);

 
 extern void term_info (char *, int);
 
 
 extern void term_info (char *, int);
 

-extern void terminal_ours_for_output (void);
+extern void child_terminal_ours (struct target_ops *self);

 
 

-extern void terminal_inferior (void);
+extern void child_terminal_ours_for_output (struct target_ops *self);

 
 

-extern void terminal_init_inferior (void);
+extern void child_terminal_inferior (struct target_ops *self);

 
 

-extern void terminal_init_inferior_with_pgrp (int pgrp);
+extern void child_terminal_init (struct target_ops *self);
+
+extern void child_terminal_init_with_pgrp (int pgrp);

 
 /* From fork-child.c */
 
 
 /* From fork-child.c */
 


@@ -199,41 +133,6 @@ extern void startup_inferior (int);
 
 extern char *construct_inferior_arguments (int, char **);
 
 
 extern char *construct_inferior_arguments (int, char **);
 

-/* From infrun.c */
-
-extern int debug_infrun;
-
-extern int stop_on_solib_events;
-
-extern void start_remote (int from_tty);
-
-extern void normal_stop (void);
-
-extern int signal_stop_state (int);
-
-extern int signal_print_state (int);
-
-extern int signal_pass_state (int);
-
-extern int signal_stop_update (int, int);
-
-extern int signal_print_update (int, int);
-
-extern int signal_pass_update (int, int);
-
-extern void get_last_target_status(ptid_t *ptid,
-                                   struct target_waitstatus *status);
-
-extern void follow_inferior_reset_breakpoints (void);
-
-/* Throw an error indicating the current thread is running.  */
-extern void error_is_running (void);
-
-/* Calls error_is_running if the current thread is running.  */
-extern void ensure_not_running (void);
-
-void set_step_info (struct frame_info *frame, struct symtab_and_line sal);
-

 /* From infcmd.c */
 
 extern void post_create_inferior (struct target_ops *, int);
 /* From infcmd.c */
 
 extern void post_create_inferior (struct target_ops *, int);


@@ -246,20 +145,10 @@ extern void set_inferior_args (char *);
 
 extern void set_inferior_args_vector (int, char **);
 
 
 extern void set_inferior_args_vector (int, char **);
 

-extern void all_registers_info (char *, int);
-

 extern void registers_info (char *, int);
 
 extern void registers_info (char *, int);
 

-extern void nexti_command (char *, int);
-
-extern void stepi_command (char *, int);
-

 extern void continue_1 (int all_threads);
 
 extern void continue_1 (int all_threads);
 

-extern void continue_command (char *, int);
-
-extern void interrupt_target_command (char *args, int from_tty);
-

 extern void interrupt_target_1 (int all_threads);
 
 extern void delete_longjmp_breakpoint_cleanup (void *arg);
 extern void interrupt_target_1 (int all_threads);
 
 extern void delete_longjmp_breakpoint_cleanup (void *arg);


@@ -271,6 +160,32 @@ extern void notice_new_inferior (ptid_t, int, int);
 extern struct value *get_return_value (struct value *function,
                                        struct type *value_type);
 
 extern struct value *get_return_value (struct value *function,
                                        struct type *value_type);
 

+/* Prepare for execution command.  TARGET is the target that will run
+   the command.  BACKGROUND determines whether this is a foreground
+   (synchronous) or background (asynchronous) command.  */
+
+extern void prepare_execution_command (struct target_ops *target,
+                                      int background);
+
+/* Whether to start up the debuggee under a shell.
+
+   If startup-with-shell is set, GDB's "run" will attempt to start up
+   the debuggee under a shell.
+
+   This is in order for argument-expansion to occur.  E.g.,
+
+   (gdb) run *
+
+   The "*" gets expanded by the shell into a list of files.
+
+   While this is a nice feature, it may be handy to bypass the shell
+   in some cases.  To disable this feature, do "set startup-with-shell
+   false".
+
+   The catch-exec traps expected during start-up will be one more if
+   the target is started up with a shell.  */
+extern int startup_with_shell;
+

 /* Address at which inferior stopped.  */
 
 extern CORE_ADDR stop_pc;
 /* Address at which inferior stopped.  */
 
 extern CORE_ADDR stop_pc;


@@ -302,20 +217,20 @@ enum step_over_calls_kind
    setting up a remote connection; it is like STOP_QUIETLY_NO_SIGSTOP
    except that there is no need to hide a signal.  */
 
    setting up a remote connection; it is like STOP_QUIETLY_NO_SIGSTOP
    except that there is no need to hide a signal.  */
 

-/* It is also used after attach, due to attaching to a process.  This
-   is a bit trickier.  When doing an attach, the kernel stops the
-   debuggee with a SIGSTOP.  On newer GNU/Linux kernels (>= 2.5.61)
-   the handling of SIGSTOP for a ptraced process has changed.  Earlier
-   versions of the kernel would ignore these SIGSTOPs, while now
-   SIGSTOP is treated like any other signal, i.e. it is not muffled.
-   
+/* STOP_QUIETLY_NO_SIGSTOP is used to handle a tricky situation with attach.
+   When doing an attach, the kernel stops the debuggee with a SIGSTOP.
+   On newer GNU/Linux kernels (>= 2.5.61) the handling of SIGSTOP for
+   a ptraced process has changed.  Earlier versions of the kernel
+   would ignore these SIGSTOPs, while now SIGSTOP is treated like any
+   other signal, i.e. it is not muffled.
+

    If the gdb user does a 'continue' after the 'attach', gdb passes
    the global variable stop_signal (which stores the signal from the
    attach, SIGSTOP) to the ptrace(PTRACE_CONT,...)  call.  This is
    problematic, because the kernel doesn't ignore such SIGSTOP
    now.  I.e. it is reported back to gdb, which in turn presents it
    back to the user.
    If the gdb user does a 'continue' after the 'attach', gdb passes
    the global variable stop_signal (which stores the signal from the
    attach, SIGSTOP) to the ptrace(PTRACE_CONT,...)  call.  This is
    problematic, because the kernel doesn't ignore such SIGSTOP
    now.  I.e. it is reported back to gdb, which in turn presents it
    back to the user.

- 
+

    To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows
    gdb to clear the value of stop_signal after the attach, so that it
    is not passed back down to the kernel.  */
    To avoid the problem, we use STOP_QUIETLY_NO_SIGSTOP, which allows
    gdb to clear the value of stop_signal after the attach, so that it
    is not passed back down to the kernel.  */


@@ -328,57 +243,17 @@ enum stop_kind
     STOP_QUIETLY_NO_SIGSTOP
   };
 
     STOP_QUIETLY_NO_SIGSTOP
   };
 

-/* Reverse execution.  */
-enum exec_direction_kind
-  {
-    EXEC_FORWARD,
-    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;
-
-/* True if we are debugging displaced stepping.  */
-extern int debug_displaced;
-
-/* Dump LEN bytes at BUF in hex to FILE, followed by a newline.  */
-void displaced_step_dump_bytes (struct ui_file *file,
-                                const gdb_byte *buf, size_t len);
-
-struct displaced_step_closure *get_displaced_step_closure_by_addr (CORE_ADDR addr);

 \f
 /* Possible values for gdbarch_call_dummy_location.  */
 #define ON_STACK 1
 #define AT_ENTRY_POINT 4
 
 \f
 /* Possible values for gdbarch_call_dummy_location.  */
 #define ON_STACK 1
 #define AT_ENTRY_POINT 4
 

-/* If STARTUP_WITH_SHELL is set, GDB's "run"
-   will attempts to start up the debugee under a shell.
-   This is in order for argument-expansion to occur.  E.g.,
-   (gdb) run *
-   The "*" gets expanded by the shell into a list of files.
-   While this is a nice feature, it turns out to interact badly
-   with some of the catch-fork/catch-exec features we have added.
-   In particular, if the shell does any fork/exec's before
-   the exec of the target program, that can confuse GDB.
-   To disable this feature, set STARTUP_WITH_SHELL to 0.
-   To enable this feature, set STARTUP_WITH_SHELL to 1.
-   The catch-exec traps expected during start-up will
-   be 1 if target is not started up with a shell, 2 if it is.
-   - RT
-   If you disable this, you need to decrement
-   START_INFERIOR_TRAPS_EXPECTED in tm.h.  */
-#define STARTUP_WITH_SHELL 1
+/* Number of traps that happen between exec'ing the shell to run an
+   inferior and when we finally get to the inferior code, not counting
+   the exec for the shell.  This is 1 on most implementations.
+   Overridden in nm.h files.  */

 #if !defined(START_INFERIOR_TRAPS_EXPECTED)
 #if !defined(START_INFERIOR_TRAPS_EXPECTED)

-#define START_INFERIOR_TRAPS_EXPECTED  2
+#define START_INFERIOR_TRAPS_EXPECTED  1

 #endif
 
 struct private_inferior;
 #endif
 
 struct private_inferior;


@@ -512,22 +387,31 @@ struct inferior
      from enum symfile_add_flags.  */
   int symfile_flags;
 
      from enum symfile_add_flags.  */
   int symfile_flags;
 

+  /* Info about an inferior's target description (if it's fetched; the
+     user supplied description's filename, if any; etc.).  */
+  struct target_desc_info *tdesc_info;
+
+  /* The architecture associated with the inferior through the
+     connection to the target.
+
+     The architecture vector provides some information that is really
+     a property of the inferior, accessed through a particular target:
+     ptrace operations; the layout of certain RSP packets; the
+     solib_ops vector; etc.  To differentiate architecture accesses to
+     per-inferior/target properties from
+     per-thread/per-frame/per-objfile properties, accesses to
+     per-inferior/target properties should be made through
+     this gdbarch.  */
+  struct gdbarch *gdbarch;
+

   /* Per inferior data-pointers required by other GDB modules.  */
   /* Per inferior data-pointers required by other GDB modules.  */

-  void **data;
-  unsigned num_data;
+  REGISTRY_FIELDS;

 };
 
 /* Keep a registry of per-inferior data-pointers required by other GDB
    modules.  */
 
 };
 
 /* Keep a registry of per-inferior data-pointers required by other GDB
    modules.  */
 

-extern const struct inferior_data *register_inferior_data (void);
-extern const struct inferior_data *register_inferior_data_with_cleanup
-  (void (*cleanup) (struct inferior *, void *));
-extern void clear_inferior_data (struct inferior *inf);
-extern void set_inferior_data (struct inferior *inf,
-                              const struct inferior_data *data, void *value);
-extern void *inferior_data (struct inferior *inf,
-                           const struct inferior_data *data);
+DECLARE_REGISTRY (inferior);

 
 /* Create an empty inferior list, or empty the existing one.  */
 extern void init_inferior_list (void);
 
 /* Create an empty inferior list, or empty the existing one.  */
 extern void init_inferior_list (void);


@@ -586,7 +470,8 @@ extern struct inferior *find_inferior_pid (int pid);
 /* Search function to lookup an inferior by GDB 'num'.  */
 extern struct inferior *find_inferior_id (int num);
 
 /* Search function to lookup an inferior by GDB 'num'.  */
 extern struct inferior *find_inferior_id (int num);
 

-/* Find an inferior bound to PSPACE.  */
+/* Find an inferior bound to PSPACE, giving preference to the current
+   inferior.  */

 extern struct inferior *
   find_inferior_for_program_space (struct program_space *pspace);
 
 extern struct inferior *
   find_inferior_for_program_space (struct program_space *pspace);
 


@@ -634,18 +519,4 @@ extern int number_of_inferiors (void);
 
 extern struct inferior *add_inferior_with_spaces (void);
 
 
 extern struct inferior *add_inferior_with_spaces (void);
 

-extern void update_observer_mode (void);
-
-extern void update_signals_program_target (void);
-
-/* In some circumstances we allow a command to specify a numeric
-   signal.  The idea is to keep these circumstances limited so that
-   users (and scripts) develop portable habits.  For comparison,
-   POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a
-   numeric signal at all is obsolescent.  We are slightly more lenient
-   and allow 1-15 which should match host signal numbers on most
-   systems.  Use of symbolic signal names is strongly encouraged.  */
-
-enum gdb_signal gdb_signal_from_command (int num);
-

 #endif /* !defined (INFERIOR_H) */
 #endif /* !defined (INFERIOR_H) */