[deliverable/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 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 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

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

#if !defined (CALL_DUMMY_WORDS)
#if defined (CALL_DUMMY)
extern LONGEST call_dummy_words[];
#define CALL_DUMMY_WORDS (call_dummy_words)
#else
#define CALL_DUMMY_WORDS (internal_error ("CALL_DUMMY_WORDS"), (void*) 0)
#endif
#endif

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