[thirdparty/binutils-gdb.git] / gdb / inferior.h

/* Variables that describe the inferior process running under GDB:
   Where it is, why it stopped, and how to step it.
   Copyright 1986, 1989, 1992, 1996, 1998 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
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   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.  */

#if !defined (INFERIOR_H)
#define INFERIOR_H 1

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

/* For enum target_signal.  */
#include "target.h"

/* Structure in which to save the status of the inferior.  Create/Save
   through "save_inferior_status", restore through
   "restore_inferior_status".

   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.  */

struct inferior_status;

extern struct inferior_status *save_inferior_status PARAMS ((int));

extern void restore_inferior_status PARAMS ((struct inferior_status *));

extern struct cleanup *make_cleanup_restore_inferior_status (struct inferior_status *);

extern void discard_inferior_status PARAMS ((struct inferior_status *));

extern void write_inferior_status_register PARAMS ((struct inferior_status * inf_status, int regno, LONGEST val));

/* This macro gives the number of registers actually in use by the
   inferior.  This may be less than the total number of registers,
   perhaps depending on the actual CPU in use or program being run.  */

#ifndef ARCH_NUM_REGS
#define ARCH_NUM_REGS NUM_REGS
#endif

extern void set_sigint_trap PARAMS ((void));

extern void clear_sigint_trap PARAMS ((void));

extern void set_sigio_trap PARAMS ((void));

extern void clear_sigio_trap PARAMS ((void));

/* File name for default use for standard in/out in the inferior.  */

extern char *inferior_io_terminal;

/* Pid of our debugged inferior, or 0 if no inferior now.  */

extern int inferior_pid;

/* 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_pid 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;

/* Character array containing an image of the inferior programs'
   registers. */

extern char *registers;

/* Character array containing the current state of each register
   (unavailable<0, valid=0, invalid>0). */

extern signed char *register_valid;

extern void clear_proceed_status PARAMS ((void));

extern void proceed PARAMS ((CORE_ADDR, enum target_signal, int));

extern void kill_inferior PARAMS ((void));

extern void generic_mourn_inferior PARAMS ((void));

extern void terminal_ours PARAMS ((void));

extern int run_stack_dummy PARAMS ((CORE_ADDR, char *));

extern CORE_ADDR read_pc PARAMS ((void));

extern CORE_ADDR read_pc_pid PARAMS ((int));

extern CORE_ADDR generic_target_read_pc PARAMS ((int));

extern void write_pc PARAMS ((CORE_ADDR));

extern void write_pc_pid PARAMS ((CORE_ADDR, int));

extern void generic_target_write_pc PARAMS ((CORE_ADDR, int));

extern CORE_ADDR read_sp PARAMS ((void));

extern CORE_ADDR generic_target_read_sp PARAMS ((void));

extern void write_sp PARAMS ((CORE_ADDR));

extern void generic_target_write_sp PARAMS ((CORE_ADDR));

extern CORE_ADDR read_fp PARAMS ((void));

extern CORE_ADDR generic_target_read_fp PARAMS ((void));

extern void write_fp PARAMS ((CORE_ADDR));

extern void generic_target_write_fp PARAMS ((CORE_ADDR));

extern CORE_ADDR generic_pointer_to_address (struct type *type, char *buf);

extern void generic_address_to_pointer (struct type *type, char *buf,
					CORE_ADDR addr);

extern void wait_for_inferior PARAMS ((void));

extern void fetch_inferior_event PARAMS ((void *));

extern void init_wait_for_inferior PARAMS ((void));

extern void close_exec_file PARAMS ((void));

extern void reopen_exec_file PARAMS ((void));

/* The `resume' routine should only be called in special circumstances.
   Normally, use `proceed', which handles a lot of bookkeeping.  */

extern void resume PARAMS ((int, enum target_signal));

/* From misc files */

extern void store_inferior_registers PARAMS ((int));

extern void fetch_inferior_registers PARAMS ((int));

extern void solib_create_inferior_hook PARAMS ((void));

extern void child_terminal_info PARAMS ((char *, int));

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

extern void terminal_ours_for_output PARAMS ((void));

extern void terminal_inferior PARAMS ((void));

extern void terminal_init_inferior PARAMS ((void));

extern void terminal_init_inferior_with_pgrp PARAMS ((int pgrp));

/* From infptrace.c or infttrace.c */

extern int attach PARAMS ((int));

#if !defined(REQUIRE_ATTACH)
#define REQUIRE_ATTACH attach
#endif

#if !defined(REQUIRE_DETACH)
#define REQUIRE_DETACH(pid,siggnal) detach (siggnal)
#endif

extern void detach PARAMS ((int));

/* PTRACE method of waiting for inferior process.  */
int ptrace_wait PARAMS ((int, int *));

extern void child_resume PARAMS ((int, int, enum target_signal));

#ifndef PTRACE_ARG3_TYPE
#define PTRACE_ARG3_TYPE int	/* Correct definition for most systems. */
#endif

extern int call_ptrace PARAMS ((int, int, PTRACE_ARG3_TYPE, int));

extern void pre_fork_inferior PARAMS ((void));

/* From procfs.c */

extern int proc_iterate_over_mappings PARAMS ((int (*)(int, CORE_ADDR)));

extern int procfs_first_available PARAMS ((void));

/* From fork-child.c */

extern void fork_inferior PARAMS ((char *, char *, char **,
				   void (*)(void),
				   void (*)(int),
				   void (*)(void),
				   char *));


extern void
clone_and_follow_inferior PARAMS ((int, int *));

extern void startup_inferior PARAMS ((int));

/* From inflow.c */

extern void new_tty_prefork PARAMS ((char *));

extern int gdb_has_a_terminal PARAMS ((void));

/* From infrun.c */

extern void start_remote PARAMS ((void));

extern void normal_stop PARAMS ((void));

extern int signal_stop_state PARAMS ((int));

extern int signal_print_state PARAMS ((int));

extern int signal_pass_state PARAMS ((int));

extern int signal_stop_update PARAMS ((int, int));

extern int signal_print_update PARAMS ((int, int));

extern int signal_pass_update PARAMS ((int, int));

/* From infcmd.c */

extern void tty_command PARAMS ((char *, int));

extern void attach_command PARAMS ((char *, int));

/* Last signal that the inferior received (why it stopped).  */

extern enum target_signal stop_signal;

/* 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;

/* 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 CORE_ADDR step_frame_address;

/* 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.  */

extern int 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;

/* Nonzero if proceed is being used for a "finish" command or a similar
   situation when stop_registers should be saved.  */

extern int proceed_to_finish;

/* Save register contents here when 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 char *stop_registers;

/* Nonzero if the child process in inferior_pid was attached rather
   than forked.  */

extern int attach_flag;
\f
/* Sigtramp is a routine that the kernel calls (which then calls the
   signal handler).  On most machines it is a library routine that
   is linked into the executable.

   This macro, given a program counter value and the name of the
   function in which that PC resides (which can be null if the
   name is not known), returns nonzero if the PC and name show
   that we are in sigtramp.

   On most machines just see if the name is sigtramp (and if we have
   no name, assume we are not in sigtramp).  */
#if !defined (IN_SIGTRAMP)
#if defined (SIGTRAMP_START)
#define IN_SIGTRAMP(pc, name) \
       ((pc) >= SIGTRAMP_START(pc)   \
        && (pc) < SIGTRAMP_END(pc) \
        )
#else
#define IN_SIGTRAMP(pc, name) \
       (name && STREQ ("_sigtramp", name))
#endif
#endif
\f
/* Possible values for CALL_DUMMY_LOCATION.  */
#define ON_STACK 1
#define BEFORE_TEXT_END 2
#define AFTER_TEXT_END 3
#define AT_ENTRY_POINT 4

#if !defined (USE_GENERIC_DUMMY_FRAMES)
#define USE_GENERIC_DUMMY_FRAMES 0
#endif

#if !defined (CALL_DUMMY_LOCATION)
#define CALL_DUMMY_LOCATION ON_STACK
#endif /* No CALL_DUMMY_LOCATION.  */

#if !defined (CALL_DUMMY_ADDRESS)
#define CALL_DUMMY_ADDRESS() (internal_error ("CALL_DUMMY_ADDRESS"), 0)
#endif
#if !defined (CALL_DUMMY_START_OFFSET)
#define CALL_DUMMY_START_OFFSET (internal_error ("CALL_DUMMY_START_OFFSET"), 0)
#endif
#if !defined (CALL_DUMMY_BREAKPOINT_OFFSET)
#define CALL_DUMMY_BREAKPOINT_OFFSET_P (0)
#define CALL_DUMMY_BREAKPOINT_OFFSET (internal_error ("CALL_DUMMY_BREAKPOINT_OFFSET"), 0)
#endif
#if !defined CALL_DUMMY_BREAKPOINT_OFFSET_P
#define CALL_DUMMY_BREAKPOINT_OFFSET_P (1)
#endif
#if !defined (CALL_DUMMY_LENGTH)
#define CALL_DUMMY_LENGTH (internal_error ("CALL_DUMMY_LENGTH"), 0)
#endif

#if defined (CALL_DUMMY_STACK_ADJUST)
#if !defined (CALL_DUMMY_STACK_ADJUST_P)
#define CALL_DUMMY_STACK_ADJUST_P (1)
#endif
#endif
#if !defined (CALL_DUMMY_STACK_ADJUST)
#define CALL_DUMMY_STACK_ADJUST (internal_error ("CALL_DUMMY_STACK_ADJUST"), 0)
#endif
#if !defined (CALL_DUMMY_STACK_ADJUST_P)
#define CALL_DUMMY_STACK_ADJUST_P (0)
#endif

/* FIXME: cagney/2000-04-17: gdbarch should manage this.  The default
   shouldn't be necessary. */

#if !defined (CALL_DUMMY_P)
#if defined (CALL_DUMMY)
#define CALL_DUMMY_P 1
#else
#define CALL_DUMMY_P 0
#endif
#endif

#if !defined PUSH_DUMMY_FRAME
#define PUSH_DUMMY_FRAME (internal_error ("PUSH_DUMMY_FRAME"), 0)
#endif

#if !defined FIX_CALL_DUMMY
#define FIX_CALL_DUMMY(a1,a2,a3,a4,a5,a6,a7) (internal_error ("FIX_CALL_DUMMY"), 0)
#endif

#if !defined STORE_STRUCT_RETURN
#define STORE_STRUCT_RETURN(a1,a2) (internal_error ("STORE_STRUCT_RETURN"), 0)
#endif


/* Are we in a call dummy? */

extern int pc_in_call_dummy_before_text_end PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
#if !GDB_MULTI_ARCH
#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == BEFORE_TEXT_END
#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_before_text_end (pc, sp, frame_address)
#endif /* Before text_end.  */
#endif

extern int pc_in_call_dummy_after_text_end PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
#if !GDB_MULTI_ARCH
#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == AFTER_TEXT_END
#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_after_text_end (pc, sp, frame_address)
#endif
#endif

extern int pc_in_call_dummy_on_stack PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
#if !GDB_MULTI_ARCH
#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == ON_STACK
#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_on_stack (pc, sp, frame_address)
#endif
#endif

extern int pc_in_call_dummy_at_entry_point PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
#if !GDB_MULTI_ARCH
#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == AT_ENTRY_POINT
#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_at_entry_point (pc, sp, frame_address)
#endif
#endif

/* 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) \
  PC_IN_CALL_DUMMY((pc), (sp), (frame_address))
#endif

/* 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
#if !defined(START_INFERIOR_TRAPS_EXPECTED)
#define START_INFERIOR_TRAPS_EXPECTED	2
#endif
#endif /* !defined (INFERIOR_H) */
Commit	Line	Data
c906108c SS	1	/* Variables that describe the inferior process running under GDB:
	2	Where it is, why it stopped, and how to step it.
	3	Copyright 1986, 1989, 1992, 1996, 1998 Free Software Foundation, Inc.
	4
c5aa993b	5	This file is part of GDB.
c906108c	6
c5aa993b JM	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2 of the License, or
	10	(at your option) any later version.
c906108c	11
c5aa993b JM	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
c906108c	16
c5aa993b JM	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 59 Temple Place - Suite 330,
	20	Boston, MA 02111-1307, USA. */
c906108c SS	21
	22	#if !defined (INFERIOR_H)
	23	#define INFERIOR_H 1
	24
	25	/* For bpstat. */
	26	#include "breakpoint.h"
	27
	28	/* For enum target_signal. */
	29	#include "target.h"
	30
7a292a7a	31	/* Structure in which to save the status of the inferior. Create/Save
c906108c SS	32	through "save_inferior_status", restore through
c906108c SS	33	"restore_inferior_status".
7a292a7a	34
c906108c SS	35	This pair of routines should be called around any transfer of
	36	control to the inferior which you don't want showing up in your
	37	control variables. */
	38
7a292a7a	39	struct inferior_status;
7a292a7a SS	40
	41	extern struct inferior_status *save_inferior_status PARAMS ((int));
	42
	43	extern void restore_inferior_status PARAMS ((struct inferior_status *));
	44
74b7792f AC	45	extern struct cleanup make_cleanup_restore_inferior_status (struct inferior_status );
74b7792f AC	46
7a292a7a SS	47	extern void discard_inferior_status PARAMS ((struct inferior_status *));
7a292a7a SS	48
c5aa993b	49	extern void write_inferior_status_register PARAMS ((struct inferior_status * inf_status, int regno, LONGEST val));
c906108c SS	50
	51	/* This macro gives the number of registers actually in use by the
	52	inferior. This may be less than the total number of registers,
	53	perhaps depending on the actual CPU in use or program being run. */
	54
	55	#ifndef ARCH_NUM_REGS
	56	#define ARCH_NUM_REGS NUM_REGS
	57	#endif
	58
c906108c SS	59	extern void set_sigint_trap PARAMS ((void));
	60
	61	extern void clear_sigint_trap PARAMS ((void));
	62
	63	extern void set_sigio_trap PARAMS ((void));
	64
	65	extern void clear_sigio_trap PARAMS ((void));
	66
	67	/* File name for default use for standard in/out in the inferior. */
	68
	69	extern char *inferior_io_terminal;
	70
	71	/* Pid of our debugged inferior, or 0 if no inferior now. */
	72
	73	extern int inferior_pid;
	74
43ff13b4 JM	75	/* Is the inferior running right now, as a result of a 'run&',
	76	'continue&' etc command? This is used in asycn gdb to determine
	77	whether a command that the user enters while the target is running
	78	is allowed or not. */
	79	extern int target_executing;
	80
	81	/* Are we simulating synchronous execution? This is used in async gdb
	82	to implement the 'run', 'continue' etc commands, which will not
	83	redisplay the prompt until the execution is actually over. */
	84	extern int sync_execution;
	85
c906108c SS	86	/* This is only valid when inferior_pid is non-zero.
	87
	88	If this is 0, then exec events should be noticed and responded to
	89	by the debugger (i.e., be reported to the user).
	90
	91	If this is > 0, then that many subsequent exec events should be
	92	ignored (i.e., not be reported to the user).
c5aa993b	93	*/
c906108c SS	94	extern int inferior_ignoring_startup_exec_events;
	95
	96	/* This is only valid when inferior_ignoring_startup_exec_events is
	97	zero.
	98
	99	Some targets (stupidly) report more than one exec event per actual
	100	call to an event() system call. If only the last such exec event
	101	need actually be noticed and responded to by the debugger (i.e.,
	102	be reported to the user), then this is the number of "leading"
	103	exec events which should be ignored.
c5aa993b	104	*/
c906108c SS	105	extern int inferior_ignoring_leading_exec_events;
	106
	107	/* Inferior environment. */
	108
	109	extern struct environ *inferior_environ;
	110
7a292a7a SS	111	/* Character array containing an image of the inferior programs'
7a292a7a SS	112	registers. */
c906108c	113
7a292a7a	114	extern char *registers;
c906108c	115
7a292a7a SS	116	/* Character array containing the current state of each register
7a292a7a SS	117	(unavailable<0, valid=0, invalid>0). */
c906108c	118
7a292a7a	119	extern signed char *register_valid;
c906108c SS	120
	121	extern void clear_proceed_status PARAMS ((void));
	122
	123	extern void proceed PARAMS ((CORE_ADDR, enum target_signal, int));
	124
	125	extern void kill_inferior PARAMS ((void));
	126
	127	extern void generic_mourn_inferior PARAMS ((void));
	128
	129	extern void terminal_ours PARAMS ((void));
	130
c5aa993b	131	extern int run_stack_dummy PARAMS ((CORE_ADDR, char *));
c906108c SS	132
	133	extern CORE_ADDR read_pc PARAMS ((void));
	134
	135	extern CORE_ADDR read_pc_pid PARAMS ((int));
	136
0f71a2f6 JM	137	extern CORE_ADDR generic_target_read_pc PARAMS ((int));
0f71a2f6 JM	138
c906108c SS	139	extern void write_pc PARAMS ((CORE_ADDR));
	140
	141	extern void write_pc_pid PARAMS ((CORE_ADDR, int));
	142
0f71a2f6 JM	143	extern void generic_target_write_pc PARAMS ((CORE_ADDR, int));
0f71a2f6 JM	144
c906108c SS	145	extern CORE_ADDR read_sp PARAMS ((void));
c906108c SS	146
0f71a2f6 JM	147	extern CORE_ADDR generic_target_read_sp PARAMS ((void));
0f71a2f6 JM	148
c906108c SS	149	extern void write_sp PARAMS ((CORE_ADDR));
c906108c SS	150
0f71a2f6 JM	151	extern void generic_target_write_sp PARAMS ((CORE_ADDR));
0f71a2f6 JM	152
c906108c SS	153	extern CORE_ADDR read_fp PARAMS ((void));
c906108c SS	154
0f71a2f6 JM	155	extern CORE_ADDR generic_target_read_fp PARAMS ((void));
0f71a2f6 JM	156
c906108c SS	157	extern void write_fp PARAMS ((CORE_ADDR));
c906108c SS	158
0f71a2f6 JM	159	extern void generic_target_write_fp PARAMS ((CORE_ADDR));
0f71a2f6 JM	160
4478b372 JB	161	extern CORE_ADDR generic_pointer_to_address (struct type type, char buf);
	162
	163	extern void generic_address_to_pointer (struct type type, char buf,
	164	CORE_ADDR addr);
	165
c906108c SS	166	extern void wait_for_inferior PARAMS ((void));
c906108c SS	167
c2c6d25f	168	extern void fetch_inferior_event PARAMS ((void *));
43ff13b4	169
c906108c SS	170	extern void init_wait_for_inferior PARAMS ((void));
	171
	172	extern void close_exec_file PARAMS ((void));
	173
	174	extern void reopen_exec_file PARAMS ((void));
	175
	176	/* The `resume' routine should only be called in special circumstances.
	177	Normally, use `proceed', which handles a lot of bookkeeping. */
	178
	179	extern void resume PARAMS ((int, enum target_signal));
	180
	181	/* From misc files */
	182
	183	extern void store_inferior_registers PARAMS ((int));
	184
	185	extern void fetch_inferior_registers PARAMS ((int));
	186
	187	extern void solib_create_inferior_hook PARAMS ((void));
	188
	189	extern void child_terminal_info PARAMS ((char *, int));
	190
	191	extern void term_info PARAMS ((char *, int));
	192
	193	extern void terminal_ours_for_output PARAMS ((void));
	194
	195	extern void terminal_inferior PARAMS ((void));
	196
	197	extern void terminal_init_inferior PARAMS ((void));
	198
	199	extern void terminal_init_inferior_with_pgrp PARAMS ((int pgrp));
	200
	201	/* From infptrace.c or infttrace.c */
	202
	203	extern int attach PARAMS ((int));
	204
	205	#if !defined(REQUIRE_ATTACH)
	206	#define REQUIRE_ATTACH attach
	207	#endif
	208
	209	#if !defined(REQUIRE_DETACH)
	210	#define REQUIRE_DETACH(pid,siggnal) detach (siggnal)
	211	#endif
	212
	213	extern void detach PARAMS ((int));
	214
7a292a7a	215	/* PTRACE method of waiting for inferior process. */
c906108c SS	216	int ptrace_wait PARAMS ((int, int *));
	217
	218	extern void child_resume PARAMS ((int, int, enum target_signal));
	219
	220	#ifndef PTRACE_ARG3_TYPE
	221	#define PTRACE_ARG3_TYPE int /* Correct definition for most systems. */
	222	#endif
	223
	224	extern int call_ptrace PARAMS ((int, int, PTRACE_ARG3_TYPE, int));
	225
	226	extern void pre_fork_inferior PARAMS ((void));
	227
	228	/* From procfs.c */
	229
	230	extern int proc_iterate_over_mappings PARAMS ((int (*)(int, CORE_ADDR)));
	231
	232	extern int procfs_first_available PARAMS ((void));
	233
c906108c SS	234	/* From fork-child.c */
	235
	236	extern void fork_inferior PARAMS ((char , char , char **,
	237	void (*)(void),
	238	void (*)(int),
	239	void (*)(void),
	240	char *));
	241
	242
	243	extern void
	244	clone_and_follow_inferior PARAMS ((int, int *));
	245
	246	extern void startup_inferior PARAMS ((int));
	247
	248	/* From inflow.c */
	249
	250	extern void new_tty_prefork PARAMS ((char *));
	251
	252	extern int gdb_has_a_terminal PARAMS ((void));
	253
	254	/* From infrun.c */
	255
	256	extern void start_remote PARAMS ((void));
	257
	258	extern void normal_stop PARAMS ((void));
	259
	260	extern int signal_stop_state PARAMS ((int));
	261
	262	extern int signal_print_state PARAMS ((int));
	263
	264	extern int signal_pass_state PARAMS ((int));
	265
d4f3574e SS	266	extern int signal_stop_update PARAMS ((int, int));
	267
	268	extern int signal_print_update PARAMS ((int, int));
	269
	270	extern int signal_pass_update PARAMS ((int, int));
	271
c906108c SS	272	/* From infcmd.c */
	273
	274	extern void tty_command PARAMS ((char *, int));
	275
	276	extern void attach_command PARAMS ((char *, int));
	277
	278	/* Last signal that the inferior received (why it stopped). */
	279
	280	extern enum target_signal stop_signal;
	281
	282	/* Address at which inferior stopped. */
	283
	284	extern CORE_ADDR stop_pc;
	285
	286	/* Chain containing status of breakpoint(s) that we have stopped at. */
	287
	288	extern bpstat stop_bpstat;
	289
	290	/* Flag indicating that a command has proceeded the inferior past the
	291	current breakpoint. */
	292
	293	extern int breakpoint_proceeded;
	294
	295	/* Nonzero if stopped due to a step command. */
	296
	297	extern int stop_step;
	298
	299	/* Nonzero if stopped due to completion of a stack dummy routine. */
	300
	301	extern int stop_stack_dummy;
	302
	303	/* Nonzero if program stopped due to a random (unexpected) signal in
	304	inferior process. */
	305
	306	extern int stopped_by_random_signal;
	307
	308	/* Range to single step within.
	309	If this is nonzero, respond to a single-step signal
	310	by continuing to step if the pc is in this range.
	311
	312	If step_range_start and step_range_end are both 1, it means to step for
	313	a single instruction (FIXME: it might clean up wait_for_inferior in a
	314	minor way if this were changed to the address of the instruction and
	315	that address plus one. But maybe not.). */
	316
	317	extern CORE_ADDR step_range_start; /* Inclusive */
c5aa993b	318	extern CORE_ADDR step_range_end; /* Exclusive */
c906108c SS	319
	320	/* Stack frame address as of when stepping command was issued.
	321	This is how we know when we step into a subroutine call,
	322	and how to set the frame for the breakpoint used to step out. */
	323
	324	extern CORE_ADDR step_frame_address;
	325
	326	/* Our notion of the current stack pointer. */
	327
	328	extern CORE_ADDR step_sp;
	329
	330	/* 1 means step over all subroutine calls.
	331	-1 means step over calls to undebuggable functions. */
	332
	333	extern int step_over_calls;
	334
	335	/* If stepping, nonzero means step count is > 1
	336	so don't print frame next time inferior stops
	337	if it stops due to stepping. */
	338
	339	extern int step_multi;
	340
	341	/* Nonzero means expecting a trap and caller will handle it themselves.
	342	It is used after attach, due to attaching to a process;
	343	when running in the shell before the child program has been exec'd;
	344	and when running some kinds of remote stuff (FIXME?). */
	345
	346	extern int stop_soon_quietly;
	347
	348	/* Nonzero if proceed is being used for a "finish" command or a similar
	349	situation when stop_registers should be saved. */
	350
	351	extern int proceed_to_finish;
	352
	353	/* Save register contents here when about to pop a stack dummy frame,
	354	if-and-only-if proceed_to_finish is set.
	355	Thus this contains the return value from the called function (assuming
	356	values are returned in a register). */
	357
7a292a7a	358	extern char *stop_registers;
c906108c SS	359
	360	/* Nonzero if the child process in inferior_pid was attached rather
	361	than forked. */
	362
	363	extern int attach_flag;
	364	\f
	365	/* Sigtramp is a routine that the kernel calls (which then calls the
	366	signal handler). On most machines it is a library routine that
	367	is linked into the executable.
	368
	369	This macro, given a program counter value and the name of the
	370	function in which that PC resides (which can be null if the
	371	name is not known), returns nonzero if the PC and name show
	372	that we are in sigtramp.
	373
	374	On most machines just see if the name is sigtramp (and if we have
	375	no name, assume we are not in sigtramp). */
	376	#if !defined (IN_SIGTRAMP)
	377	#if defined (SIGTRAMP_START)
	378	#define IN_SIGTRAMP(pc, name) \
	379	((pc) >= SIGTRAMP_START(pc) \
	380	&& (pc) < SIGTRAMP_END(pc) \
	381	)
	382	#else
	383	#define IN_SIGTRAMP(pc, name) \
	384	(name && STREQ ("_sigtramp", name))
	385	#endif
	386	#endif
	387	\f
	388	/* Possible values for CALL_DUMMY_LOCATION. */
	389	#define ON_STACK 1
	390	#define BEFORE_TEXT_END 2
	391	#define AFTER_TEXT_END 3
	392	#define AT_ENTRY_POINT 4
	393
7a292a7a SS	394	#if !defined (USE_GENERIC_DUMMY_FRAMES)
	395	#define USE_GENERIC_DUMMY_FRAMES 0
	396	#endif
	397
c906108c SS	398	#if !defined (CALL_DUMMY_LOCATION)
	399	#define CALL_DUMMY_LOCATION ON_STACK
	400	#endif /* No CALL_DUMMY_LOCATION. */
	401
7a292a7a	402	#if !defined (CALL_DUMMY_ADDRESS)
11cf8741	403	#define CALL_DUMMY_ADDRESS() (internal_error ("CALL_DUMMY_ADDRESS"), 0)
7a292a7a SS	404	#endif
7a292a7a SS	405	#if !defined (CALL_DUMMY_START_OFFSET)
11cf8741	406	#define CALL_DUMMY_START_OFFSET (internal_error ("CALL_DUMMY_START_OFFSET"), 0)
7a292a7a SS	407	#endif
	408	#if !defined (CALL_DUMMY_BREAKPOINT_OFFSET)
	409	#define CALL_DUMMY_BREAKPOINT_OFFSET_P (0)
11cf8741	410	#define CALL_DUMMY_BREAKPOINT_OFFSET (internal_error ("CALL_DUMMY_BREAKPOINT_OFFSET"), 0)
7a292a7a SS	411	#endif
	412	#if !defined CALL_DUMMY_BREAKPOINT_OFFSET_P
	413	#define CALL_DUMMY_BREAKPOINT_OFFSET_P (1)
	414	#endif
	415	#if !defined (CALL_DUMMY_LENGTH)
11cf8741	416	#define CALL_DUMMY_LENGTH (internal_error ("CALL_DUMMY_LENGTH"), 0)
7a292a7a SS	417	#endif
	418
	419	#if defined (CALL_DUMMY_STACK_ADJUST)
	420	#if !defined (CALL_DUMMY_STACK_ADJUST_P)
	421	#define CALL_DUMMY_STACK_ADJUST_P (1)
	422	#endif
	423	#endif
	424	#if !defined (CALL_DUMMY_STACK_ADJUST)
11cf8741	425	#define CALL_DUMMY_STACK_ADJUST (internal_error ("CALL_DUMMY_STACK_ADJUST"), 0)
7a292a7a SS	426	#endif
	427	#if !defined (CALL_DUMMY_STACK_ADJUST_P)
	428	#define CALL_DUMMY_STACK_ADJUST_P (0)
	429	#endif
	430
ba886e9d AC	431	/* FIXME: cagney/2000-04-17: gdbarch should manage this. The default
	432	shouldn't be necessary. */
	433
7a292a7a SS	434	#if !defined (CALL_DUMMY_P)
	435	#if defined (CALL_DUMMY)
	436	#define CALL_DUMMY_P 1
	437	#else
	438	#define CALL_DUMMY_P 0
	439	#endif
	440	#endif
	441
7a292a7a	442	#if !defined PUSH_DUMMY_FRAME
11cf8741	443	#define PUSH_DUMMY_FRAME (internal_error ("PUSH_DUMMY_FRAME"), 0)
7a292a7a SS	444	#endif
	445
	446	#if !defined FIX_CALL_DUMMY
11cf8741	447	#define FIX_CALL_DUMMY(a1,a2,a3,a4,a5,a6,a7) (internal_error ("FIX_CALL_DUMMY"), 0)
7a292a7a SS	448	#endif
	449
	450	#if !defined STORE_STRUCT_RETURN
11cf8741	451	#define STORE_STRUCT_RETURN(a1,a2) (internal_error ("STORE_STRUCT_RETURN"), 0)
7a292a7a SS	452	#endif
	453
	454
	455	/* Are we in a call dummy? */
	456
	457	extern int pc_in_call_dummy_before_text_end PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
0f71a2f6	458	#if !GDB_MULTI_ARCH
7a292a7a SS	459	#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == BEFORE_TEXT_END
7a292a7a SS	460	#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_before_text_end (pc, sp, frame_address)
c906108c	461	#endif /* Before text_end. */
0f71a2f6	462	#endif
c906108c	463
7a292a7a	464	extern int pc_in_call_dummy_after_text_end PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
0f71a2f6	465	#if !GDB_MULTI_ARCH
7a292a7a	466	#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == AFTER_TEXT_END
c5aa993b	467	#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_after_text_end (pc, sp, frame_address)
7a292a7a	468	#endif
0f71a2f6	469	#endif
7a292a7a SS	470
7a292a7a SS	471	extern int pc_in_call_dummy_on_stack PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
0f71a2f6	472	#if !GDB_MULTI_ARCH
7a292a7a SS	473	#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == ON_STACK
	474	#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_on_stack (pc, sp, frame_address)
	475	#endif
0f71a2f6	476	#endif
7a292a7a SS	477
7a292a7a SS	478	extern int pc_in_call_dummy_at_entry_point PARAMS ((CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address));
0f71a2f6	479	#if !GDB_MULTI_ARCH
7a292a7a SS	480	#if !defined (PC_IN_CALL_DUMMY) && CALL_DUMMY_LOCATION == AT_ENTRY_POINT
	481	#define PC_IN_CALL_DUMMY(pc, sp, frame_address) pc_in_call_dummy_at_entry_point (pc, sp, frame_address)
	482	#endif
0f71a2f6	483	#endif
c906108c SS	484
	485	/* It's often not enough for our clients to know whether the PC is merely
	486	somewhere within the call dummy. They may need to know whether the
	487	call dummy has actually completed. (For example, wait_for_inferior
	488	wants to know when it should truly stop because the call dummy has
	489	completed. If we're single-stepping because of slow watchpoints,
	490	then we may find ourselves stopped at the entry of the call dummy,
	491	and want to continue stepping until we reach the end.)
	492
	493	Note that this macro is intended for targets (like HP-UX) which
	494	require more than a single breakpoint in their call dummies, and
	495	therefore cannot use the CALL_DUMMY_BREAKPOINT_OFFSET mechanism.
	496
	497	If a target does define CALL_DUMMY_BREAKPOINT_OFFSET, then this
	498	default implementation of CALL_DUMMY_HAS_COMPLETED is sufficient.
	499	Else, a target may wish to supply an implementation that works in
	500	the presense of multiple breakpoints in its call dummy.
c5aa993b	501	*/
c906108c SS	502	#if !defined(CALL_DUMMY_HAS_COMPLETED)
	503	#define CALL_DUMMY_HAS_COMPLETED(pc, sp, frame_address) \
	504	PC_IN_CALL_DUMMY((pc), (sp), (frame_address))
	505	#endif
	506
	507	/* If STARTUP_WITH_SHELL is set, GDB's "run"
	508	will attempts to start up the debugee under a shell.
	509	This is in order for argument-expansion to occur. E.g.,
	510	(gdb) run *
	511	The "*" gets expanded by the shell into a list of files.
	512	While this is a nice feature, it turns out to interact badly
	513	with some of the catch-fork/catch-exec features we have added.
	514	In particular, if the shell does any fork/exec's before
	515	the exec of the target program, that can confuse GDB.
	516	To disable this feature, set STARTUP_WITH_SHELL to 0.
	517	To enable this feature, set STARTUP_WITH_SHELL to 1.
	518	The catch-exec traps expected during start-up will
	519	be 1 if target is not started up with a shell, 2 if it is.
	520	- RT
	521	If you disable this, you need to decrement
	522	START_INFERIOR_TRAPS_EXPECTED in tm.h. */
	523	#define STARTUP_WITH_SHELL 1
	524	#if !defined(START_INFERIOR_TRAPS_EXPECTED)
	525	#define START_INFERIOR_TRAPS_EXPECTED 2
	526	#endif
	527	#endif /* !defined (INFERIOR_H) */