X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Finferior.h;h=17b2c6fbfcecf86b1ecb6ba6585ca3c04186b962;hb=e62b8c7ea4e47e447df774f45308f9539cd99fd6;hp=6f2411cb8fd2bee03284e6d34befd29a18a06cda;hpb=73dd234f2ffe66ac8e500fb37244c5c65c74caa6;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/inferior.h b/gdb/inferior.h
index 6f2411cb8f..17b2c6fbfc 100644
--- a/gdb/inferior.h
+++ b/gdb/inferior.h
@@ -1,14 +1,15 @@
 /* Variables that describe the inferior process running under GDB:
    Where it is, why it stopped, and how to step it.
 
-   Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
-   1996, 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
+   1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -17,15 +18,19 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #if !defined (INFERIOR_H)
 #define INFERIOR_H 1
 
+struct target_waitstatus;
+struct frame_info;
+struct ui_file;
+struct type;
 struct gdbarch;
 struct regcache;
+struct ui_out;
+struct terminal_info;
 
 /* For bpstat.  */
 #include "breakpoint.h"
@@ -36,27 +41,39 @@ struct regcache;
 /* For struct frame_id.  */
 #include "frame.h"
 
-/* Structure in which to save the status of the inferior.  Create/Save
-   through "save_inferior_status", restore through
-   "restore_inferior_status".
+#include "progspace.h"
 
-   This pair of routines should be called around any transfer of
-   control to the inferior which you don't want showing up in your
-   control variables.  */
+/* Two structures are used to record inferior state.
 
+   inferior_thread_state contains state about the program itself like its
+   registers and any signal it received when it last stopped.
+   This state must be restored regardless of how the inferior function call
+   ends (either successfully, or after it hits a breakpoint or signal)
+   if the program is to properly continue where it left off.
+
+   inferior_status contains state regarding gdb's control of the inferior
+   itself like stepping control.  It also contains session state like the
+   user's currently selected frame.
+
+   Call these routines around hand called functions, including function calls
+   in conditional breakpoints for example.  */
+
+struct inferior_thread_state;
 struct inferior_status;
 
-extern struct inferior_status *save_inferior_status (int);
+extern struct inferior_thread_state *save_inferior_thread_state (void);
+extern struct inferior_status *save_inferior_status (void);
 
+extern void restore_inferior_thread_state (struct inferior_thread_state *);
 extern void restore_inferior_status (struct inferior_status *);
 
+extern struct cleanup *make_cleanup_restore_inferior_thread_state (struct inferior_thread_state *);
 extern struct cleanup *make_cleanup_restore_inferior_status (struct inferior_status *);
 
+extern void discard_inferior_thread_state (struct inferior_thread_state *);
 extern void discard_inferior_status (struct inferior_status *);
 
-extern void write_inferior_status_register (struct inferior_status
-					    *inf_status, int regno,
-					    LONGEST val);
+extern struct regcache *get_inferior_thread_state_regcache (struct inferior_thread_state *);
 
 /* The -1 ptid, often used to indicate either an error condition
    or a "don't care" condition, i.e, "run all threads."  */
@@ -85,6 +102,19 @@ long ptid_get_tid (ptid_t ptid);
 /* Compare two ptids to see if they are equal */
 extern int ptid_equal (ptid_t p1, ptid_t p2);
 
+/* Return true if PTID represents a process id.  */
+extern int ptid_is_pid (ptid_t ptid);
+
+/* 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.  */
@@ -94,65 +124,45 @@ extern void set_sigint_trap (void);
 
 extern void clear_sigint_trap (void);
 
-extern void set_sigio_trap (void);
-
-extern void clear_sigio_trap (void);
+/* Set/get file name for default use for standard in/out in the inferior.  */
 
-/* File name for default use for standard in/out in the inferior.  */
-
-extern char *inferior_io_terminal;
+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
    no inferior, PIDGET (inferior_ptid) will be 0. */
 
 extern ptid_t inferior_ptid;
 
-/* Is the inferior running right now, as a result of a 'run&',
-   'continue&' etc command? This is used in asycn gdb to determine
-   whether a command that the user enters while the target is running
-   is allowed or not. */
-extern int target_executing;
-
 /* 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;
 
-/* This is only valid when inferior_ptid is non-zero.
-
-   If this is 0, then exec events should be noticed and responded to
-   by the debugger (i.e., be reported to the user).
-
-   If this is > 0, then that many subsequent exec events should be
-   ignored (i.e., not be reported to the user).
- */
-extern int inferior_ignoring_startup_exec_events;
-
-/* This is only valid when inferior_ignoring_startup_exec_events is
-   zero.
-
-   Some targets (stupidly) report more than one exec event per actual
-   call to an event() system call.  If only the last such exec event
-   need actually be noticed and responded to by the debugger (i.e.,
-   be reported to the user), then this is the number of "leading"
-   exec events which should be ignored.
- */
-extern int inferior_ignoring_leading_exec_events;
-
 /* Inferior environment. */
 
-extern struct environ *inferior_environ;
-
 extern void clear_proceed_status (void);
 
 extern void proceed (CORE_ADDR, enum target_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;
 
-extern void kill_inferior (void);
+/* 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 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;
 
 extern void generic_mourn_inferior (void);
 
@@ -160,40 +170,22 @@ extern void terminal_save_ours (void);
 
 extern void terminal_ours (void);
 
-extern int run_stack_dummy (CORE_ADDR , struct regcache *);
-
-extern CORE_ADDR read_pc (void);
-
-extern CORE_ADDR read_pc_pid (ptid_t);
-
-extern CORE_ADDR generic_target_read_pc (ptid_t);
-
-extern void write_pc (CORE_ADDR);
-
-extern void write_pc_pid (CORE_ADDR, ptid_t);
-
-extern void generic_target_write_pc (CORE_ADDR, ptid_t);
-
-extern CORE_ADDR read_sp (void);
-
-extern CORE_ADDR generic_target_read_sp (void);
-
-extern void generic_target_write_sp (CORE_ADDR);
-
-extern CORE_ADDR read_fp (void);
-
-extern CORE_ADDR generic_target_read_fp (void);
-
-extern CORE_ADDR unsigned_pointer_to_address (struct type *type, const void *buf);
-
-extern void unsigned_address_to_pointer (struct type *type, void *buf,
+extern CORE_ADDR unsigned_pointer_to_address (struct gdbarch *gdbarch,
+					      struct type *type,
+					      const gdb_byte *buf);
+extern void unsigned_address_to_pointer (struct gdbarch *gdbarch,
+					 struct type *type, gdb_byte *buf,
 					 CORE_ADDR addr);
-extern CORE_ADDR signed_pointer_to_address (struct type *type,
-					    const void *buf);
-extern void address_to_signed_pointer (struct type *type, void *buf,
+extern CORE_ADDR signed_pointer_to_address (struct gdbarch *gdbarch,
+					    struct type *type,
+					    const gdb_byte *buf);
+extern void address_to_signed_pointer (struct gdbarch *gdbarch,
+				       struct type *type, gdb_byte *buf,
 				       CORE_ADDR addr);
 
-extern void wait_for_inferior (void);
+extern void wait_for_inferior (int treat_exec_as_sigtrap);
+
+extern void prepare_for_detach (void);
 
 extern void fetch_inferior_event (void *);
 
@@ -215,12 +207,6 @@ extern void default_print_registers_info (struct gdbarch *gdbarch,
 					  struct frame_info *frame,
 					  int regnum, int all);
 
-extern void store_inferior_registers (int);
-
-extern void fetch_inferior_registers (int);
-
-extern void solib_create_inferior_hook (void);
-
 extern void child_terminal_info (char *, int);
 
 extern void term_info (char *, int);
@@ -233,51 +219,20 @@ extern void terminal_init_inferior (void);
 
 extern void terminal_init_inferior_with_pgrp (int pgrp);
 
-/* From infptrace.c or infttrace.c */
-
-extern int attach (int);
-
-extern void detach (int);
-
-/* PTRACE method of waiting for inferior process.  */
-int ptrace_wait (ptid_t, int *);
-
-extern void child_resume (ptid_t, int, enum target_signal);
-
-#ifndef PTRACE_ARG3_TYPE
-#define PTRACE_ARG3_TYPE int	/* Correct definition for most systems. */
-#endif
-
-extern int call_ptrace (int, int, PTRACE_ARG3_TYPE, int);
-
-extern void pre_fork_inferior (void);
-
-/* From procfs.c */
-
-extern int proc_iterate_over_mappings (int (*)(int, CORE_ADDR));
-
-extern ptid_t procfs_first_available (void);
-
 /* From fork-child.c */
 
-extern void fork_inferior (char *, char *, char **,
-			   void (*)(void),
-			   void (*)(int), void (*)(void), char *);
+extern int fork_inferior (char *, char *, char **,
+			  void (*)(void),
+			  void (*)(int), void (*)(void), char *);
 
 
 extern void startup_inferior (int);
 
-extern char *construct_inferior_arguments (struct gdbarch *, int, char **);
-
-/* From inflow.c */
-
-extern void new_tty_prefork (char *);
-
-extern int gdb_has_a_terminal (void);
+extern char *construct_inferior_arguments (int, char **);
 
 /* From infrun.c */
 
-extern void start_remote (void);
+extern void start_remote (int from_tty);
 
 extern void normal_stop (void);
 
@@ -298,15 +253,23 @@ extern void get_last_target_status(ptid_t *ptid,
 
 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 tty_command (char *, int);
+extern void post_create_inferior (struct target_ops *, int);
 
 extern void attach_command (char *, int);
 
 extern char *get_inferior_args (void);
 
-extern char *set_inferior_args (char *);
+extern void set_inferior_args (char *);
 
 extern void set_inferior_args_vector (int, char **);
 
@@ -316,64 +279,34 @@ extern void nexti_command (char *, int);
 
 extern void stepi_command (char *, int);
 
+extern void continue_1 (int all_threads);
+
 extern void continue_command (char *, int);
 
 extern void interrupt_target_command (char *args, int from_tty);
 
-/* Last signal that the inferior received (why it stopped).  */
+extern void interrupt_target_1 (int all_threads);
+
+extern void detach_command (char *, int);
 
-extern enum target_signal stop_signal;
+extern void notice_new_inferior (ptid_t, int, int);
 
 /* Address at which inferior stopped.  */
 
 extern CORE_ADDR stop_pc;
 
-/* Chain containing status of breakpoint(s) that we have stopped at.  */
-
-extern bpstat stop_bpstat;
-
-/* Flag indicating that a command has proceeded the inferior past the
-   current breakpoint.  */
-
-extern int breakpoint_proceeded;
-
-/* Nonzero if stopped due to a step command.  */
-
-extern int stop_step;
-
 /* Nonzero if stopped due to completion of a stack dummy routine.  */
 
-extern int stop_stack_dummy;
+extern enum stop_stack_kind stop_stack_dummy;
 
 /* Nonzero if program stopped due to a random (unexpected) signal in
    inferior process.  */
 
 extern int stopped_by_random_signal;
 
-/* Range to single step within.
-   If this is nonzero, respond to a single-step signal
-   by continuing to step if the pc is in this range.
-
-   If step_range_start and step_range_end are both 1, it means to step for
-   a single instruction (FIXME: it might clean up wait_for_inferior in a
-   minor way if this were changed to the address of the instruction and
-   that address plus one.  But maybe not.).  */
-
-extern CORE_ADDR step_range_start;	/* Inclusive */
-extern CORE_ADDR step_range_end;	/* Exclusive */
-
-/* Stack frame address as of when stepping command was issued.
-   This is how we know when we step into a subroutine call,
-   and how to set the frame for the breakpoint used to step out.  */
-
-extern struct frame_id step_frame_id;
-
-/* Our notion of the current stack pointer.  */
-
-extern CORE_ADDR step_sp;
-
-/* 1 means step over all subroutine calls.
-   -1 means step over calls to undebuggable functions.  */
+/* 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
   {
@@ -382,102 +315,68 @@ enum step_over_calls_kind
     STEP_OVER_UNDEBUGGABLE
   };
 
-extern enum step_over_calls_kind step_over_calls;
-
-/* If stepping, nonzero means step count is > 1
-   so don't print frame next time inferior stops
-   if it stops due to stepping.  */
-
-extern int step_multi;
-
-/* Nonzero means expecting a trap and caller will handle it themselves.
-   It is used after attach, due to attaching to a process;
-   when running in the shell before the child program has been exec'd;
-   and when running some kinds of remote stuff (FIXME?).  */
-
-extern int stop_soon_quietly;
+/* Anything but NO_STOP_QUIETLY means we expect a trap and the caller
+   will handle it themselves.  STOP_QUIETLY is used when running in
+   the shell before the child program has been exec'd and when running
+   through shared library loading.  STOP_QUIETLY_REMOTE is used when
+   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.
+   
+   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.  */
+
+enum stop_kind
+  {
+    NO_STOP_QUIETLY = 0,
+    STOP_QUIETLY,
+    STOP_QUIETLY_REMOTE,
+    STOP_QUIETLY_NO_SIGSTOP
+  };
 
-/* Nonzero if proceed is being used for a "finish" command or a similar
-   situation when stop_registers should be saved.  */
+/* Reverse execution.  */
+enum exec_direction_kind
+  {
+    EXEC_FORWARD,
+    EXEC_REVERSE,
+    EXEC_ERROR
+  };
 
-extern int proceed_to_finish;
+extern enum exec_direction_kind execution_direction;
 
-/* Save register contents here when about to pop a stack dummy frame,
-   if-and-only-if proceed_to_finish is set.
+/* 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;
 
-/* Nonzero if the child process in inferior_ptid was attached rather
-   than forked.  */
+/* 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);
 
-extern int attach_flag;
 
-/* Possible values for CALL_DUMMY_LOCATION.  */
+/* Possible values for gdbarch_call_dummy_location.  */
 #define ON_STACK 1
 #define AT_ENTRY_POINT 4
-
-#if !defined (CALL_DUMMY_START_OFFSET)
-#define CALL_DUMMY_START_OFFSET (internal_error (__FILE__, __LINE__, "CALL_DUMMY_START_OFFSET"), 0)
-#endif
-#if !defined (CALL_DUMMY_LENGTH)
-#define CALL_DUMMY_LENGTH (internal_error (__FILE__, __LINE__, "CALL_DUMMY_LENGTH"), 0)
-#endif
-
-/* FIXME: cagney/2000-04-17: gdbarch should manage this.  The default
-   shouldn't be necessary. */
-
-#if !defined PUSH_DUMMY_FRAME
-#define PUSH_DUMMY_FRAME (internal_error (__FILE__, __LINE__, "PUSH_DUMMY_FRAME"), 0)
-#endif
-
-#if !defined STORE_STRUCT_RETURN
-#define STORE_STRUCT_RETURN(a1,a2) (internal_error (__FILE__, __LINE__, "STORE_STRUCT_RETURN"), 0)
-#endif
-
-
-/* Are we in a call dummy? */
-
-/* NOTE: cagney/2002-11-24: Targets need to both switch to generic
-   dummy frames, and use generic_pc_in_call_dummy().  The generic
-   version should be able to handle all cases since that code works by
-   saving the address of the dummy's breakpoint (where ever it is).  */
-
-extern int deprecated_pc_in_call_dummy_on_stack (CORE_ADDR pc,
-						 CORE_ADDR sp,
-						 CORE_ADDR frame_address);
-
-/* NOTE: cagney/2002-11-24: Targets need to both switch to generic
-   dummy frames, and use generic_pc_in_call_dummy().  The generic
-   version should be able to handle all cases since that code works by
-   saving the address of the dummy's breakpoint (where ever it is).  */
-
-extern int deprecated_pc_in_call_dummy_at_entry_point (CORE_ADDR pc,
-						       CORE_ADDR sp,
-						       CORE_ADDR frame_address);
-
-/* It's often not enough for our clients to know whether the PC is merely
-   somewhere within the call dummy.  They may need to know whether the
-   call dummy has actually completed.  (For example, wait_for_inferior
-   wants to know when it should truly stop because the call dummy has
-   completed.  If we're single-stepping because of slow watchpoints,
-   then we may find ourselves stopped at the entry of the call dummy,
-   and want to continue stepping until we reach the end.)
-
-   Note that this macro is intended for targets (like HP-UX) which
-   require more than a single breakpoint in their call dummies, and
-   therefore cannot use the CALL_DUMMY_BREAKPOINT_OFFSET mechanism.
-
-   If a target does define CALL_DUMMY_BREAKPOINT_OFFSET, then this
-   default implementation of CALL_DUMMY_HAS_COMPLETED is sufficient.
-   Else, a target may wish to supply an implementation that works in
-   the presense of multiple breakpoints in its call dummy.
- */
-#if !defined(CALL_DUMMY_HAS_COMPLETED)
-#define CALL_DUMMY_HAS_COMPLETED(pc, sp, frame_address) \
-  DEPRECATED_PC_IN_CALL_DUMMY((pc), (sp), (frame_address))
-#endif
+#define AT_SYMBOL 5
 
 /* If STARTUP_WITH_SHELL is set, GDB's "run"
    will attempts to start up the debugee under a shell.
@@ -499,4 +398,234 @@ extern int deprecated_pc_in_call_dummy_at_entry_point (CORE_ADDR pc,
 #if !defined(START_INFERIOR_TRAPS_EXPECTED)
 #define START_INFERIOR_TRAPS_EXPECTED	2
 #endif
+
+struct private_inferior;
+
+/* GDB represents the state of each program execution with an object
+   called an inferior.  An inferior typically corresponds to a process
+   but is more general and applies also to targets that do not have a
+   notion of processes.  Each run of an executable creates a new
+   inferior, as does each attachment to an existing process.
+   Inferiors have unique internal identifiers that are different from
+   target process ids.  Each inferior may in turn have multiple
+   threads running in it.  */
+
+struct inferior
+{
+  /* Pointer to next inferior in singly-linked list of inferiors.  */
+  struct inferior *next;
+
+  /* Convenient handle (GDB inferior id).  Unique across all
+     inferiors.  */
+  int num;
+
+  /* Actual target inferior id, usually, a process id.  This matches
+     the ptid_t.pid member of threads of this inferior.  */
+  int pid;
+
+  /* True if this was an auto-created inferior, e.g. created from
+     following a fork; false, if this inferior was manually added by
+     the user, and we should not attempt to prune it
+     automatically.  */
+  int removable;
+
+  /* The address space bound to this inferior.  */
+  struct address_space *aspace;
+
+  /* The program space bound to this inferior.  */
+  struct program_space *pspace;
+
+  /* The arguments string to use when running.  */
+  char *args;
+
+  /* The size of elements in argv.  */
+  int argc;
+
+  /* The vector version of arguments.  If ARGC is nonzero,
+     then we must compute ARGS from this (via the target).
+     This is always coming from main's argv and therefore
+     should never be freed.  */
+  char **argv;
+
+  /* The name of terminal device to use for I/O.  */
+  char *terminal;
+
+  /* Environment to use for running inferior,
+     in format described in environ.h.  */
+  struct gdb_environ *environment;
+
+  /* See the definition of stop_kind above.  */
+  enum stop_kind stop_soon;
+
+  /* Nonzero if this child process was attached rather than
+     forked.  */
+  int attach_flag;
+
+  /* If this inferior is a vfork child, then this is the pointer to
+     its vfork parent, if GDB is still attached to it.  */
+  struct inferior *vfork_parent;
+
+  /* If this process is a vfork parent, this is the pointer to the
+     child.  Since a vfork parent is left frozen by the kernel until
+     the child execs or exits, a process can only have one vfork child
+     at a given time.  */
+  struct inferior *vfork_child;
+
+  /* True if this inferior should be detached when it's vfork sibling
+     exits or execs.  */
+  int pending_detach;
+
+  /* True if this inferior is a vfork parent waiting for a vfork child
+     not under our control to be done with the shared memory region,
+     either by exiting or execing.  */
+  int waiting_for_vfork_done;
+
+  /* True if we're in the process of detaching from this inferior.  */
+  int detaching;
+
+  /* What is left to do for an execution command after any thread of
+     this inferior stops.  For continuations associated with a
+     specific thread, see `struct thread_info'.  */
+  struct continuation *continuations;
+
+  /* Private data used by the target vector implementation.  */
+  struct private_inferior *private;
+
+  /* We keep a count of the number of times the user has requested a
+     particular syscall to be tracked, and pass this information to the
+     target.  This lets capable targets implement filtering directly.  */
+
+  /* Number of times that "any" syscall is requested.  */
+  int any_syscall_count;
+
+  /* Count of each system call.  */
+  VEC(int) *syscalls_counts;
+
+  /* This counts all syscall catch requests, so we can readily determine
+     if any catching is necessary.  */
+  int total_syscalls_count;
+
+  /* Per inferior data-pointers required by other GDB modules.  */
+  void **data;
+  unsigned num_data;
+};
+
+/* 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);
+
+/* Create an empty inferior list, or empty the existing one.  */
+extern void init_inferior_list (void);
+
+/* Add an inferior to the inferior list, print a message that a new
+   inferior is found, and return the pointer to the new inferior.
+   Caller may use this pointer to initialize the private inferior
+   data.  */
+extern struct inferior *add_inferior (int pid);
+
+/* Same as add_inferior, but don't print new inferior notifications to
+   the CLI.  */
+extern struct inferior *add_inferior_silent (int pid);
+
+/* Delete an existing inferior list entry, due to inferior exit.  */
+extern void delete_inferior (int pid);
+
+extern void delete_inferior_1 (struct inferior *todel, int silent);
+
+/* Same as delete_inferior, but don't print new inferior notifications
+   to the CLI.  */
+extern void delete_inferior_silent (int pid);
+
+/* Delete an existing inferior list entry, due to inferior detaching.  */
+extern void detach_inferior (int pid);
+
+extern void exit_inferior (int pid);
+
+extern void exit_inferior_silent (int pid);
+
+extern void exit_inferior_num_silent (int num);
+
+extern void inferior_appeared (struct inferior *inf, int pid);
+
+/* 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);
+
+/* Search function to lookup an inferior by GDB 'num'.  */
+extern struct inferior *find_inferior_id (int num);
+
+/* Find an inferior bound to PSPACE.  */
+extern struct inferior *
+  find_inferior_for_program_space (struct program_space *pspace);
+
+/* Inferior iterator function.
+
+   Calls a callback function once for each inferior, so long as the
+   callback function returns false.  If the callback function returns
+   true, the iteration will end and the current inferior will be
+   returned.  This can be useful for implementing a search for a
+   inferior with arbitrary attributes, or for applying some operation
+   to every inferior.
+
+   It is safe to delete the iterated inferior from the callback.  */
+extern struct inferior *iterate_over_inferiors (int (*) (struct inferior *,
+							 void *),
+						void *);
+
+/* Prints the list of inferiors and their details on UIOUT.
+
+   If REQUESTED_INFERIOR is not -1, it's the GDB id of the inferior
+   that should be printed.  Otherwise, all inferiors are printed.  */
+extern void print_inferior (struct ui_out *uiout, int requested_inferior);
+
+/* Returns true if the inferior list is not empty.  */
+extern int have_inferiors (void);
+
+/* Returns true if there are any live inferiors in the inferior list
+   (not cores, not executables, real live processes).  */
+extern int have_live_inferiors (void);
+
+/* Return a pointer to the current inferior.  It is an error to call
+   this if there is no current inferior.  */
+extern struct inferior *current_inferior (void);
+
+extern void set_current_inferior (struct inferior *);
+
+extern struct cleanup *save_current_inferior (void);
+
+extern struct inferior *inferior_list;
+
+/* Prune away automatically added inferiors that aren't required
+   anymore.  */
+extern void prune_inferiors (void);
+
+extern int number_of_inferiors (void);
+
+extern struct inferior *add_inferior_with_spaces (void);
+
 #endif /* !defined (INFERIOR_H) */