[binutils.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 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#if !defined (INFERIOR_H)
#define INFERIOR_H 1

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

/* For FRAME_ADDR.  */
#include "frame.h"

/*
 * Structure in which to save the status of the inferior.  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 {
  int stop_signal;
  CORE_ADDR stop_pc;
  FRAME_ADDR stop_frame_address;
  bpstat stop_bpstat;
  int stop_step;
  int stop_stack_dummy;
  int stopped_by_random_signal;
  int trap_expected;
  CORE_ADDR step_range_start;
  CORE_ADDR step_range_end;
  FRAME_ADDR step_frame_address;
  int step_over_calls;
  CORE_ADDR step_resume_break_address;
  int stop_after_trap;
  int stop_soon_quietly;
  FRAME_ADDR selected_frame_address;
  int selected_level;
  char stop_registers[REGISTER_BYTES];

  /* These are here because if call_function_by_hand has written some
     registers and then decides to call error(), we better not have changed
     any registers.  */
  char registers[REGISTER_BYTES];

  int breakpoint_proceeded;
  int restore_stack_info;
  int proceed_to_finish;
};

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

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

extern void set_sigint_trap PARAMS ((void));
extern void clear_sigint_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;

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

extern char registers[];

/* Array of validity bits (one per register).  Nonzero at position XXX_REGNUM
   means that `registers' contains a valid copy of inferior register XXX.  */

extern char register_valid[NUM_REGS];

extern void
clear_proceed_status PARAMS ((void));

extern void
proceed PARAMS ((CORE_ADDR, int, 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 [REGISTER_BYTES]));

extern CORE_ADDR
read_pc PARAMS ((void));

extern void
write_pc PARAMS ((CORE_ADDR));

extern CORE_ADDR
read_sp PARAMS ((void));

extern void
write_sp PARAMS ((CORE_ADDR));

extern CORE_ADDR
read_fp PARAMS ((void));

extern void
write_fp PARAMS ((CORE_ADDR));

extern void
wait_for_inferior 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, int));

/* 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));

/* From infptrace.c */

extern int
attach PARAMS ((int));

void
detach PARAMS ((int));

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

#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));

/* From procfs.c */

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

/* From fork-child.c */

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

/* 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 int stop_signal;

/* Address at which inferior stopped.  */

extern CORE_ADDR stop_pc;

/* Stack frame when program stopped.  */

extern FRAME_ADDR stop_frame_address;

/* 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 FRAME_ADDR step_frame_address;

/* 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[REGISTER_BYTES];

/* 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) < SIGTRAMP_END \
        )
#  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 (CALL_DUMMY_LOCATION)
#define CALL_DUMMY_LOCATION ON_STACK
#endif /* No CALL_DUMMY_LOCATION.  */

/* Are we in a call dummy?  The code below which allows DECR_PC_AFTER_BREAK
   below is for infrun.c, which may give the macro a pc without that
   subtracted out.  */
#if !defined (PC_IN_CALL_DUMMY)
#if CALL_DUMMY_LOCATION == BEFORE_TEXT_END
extern CORE_ADDR text_end;
#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
  ((pc) >= text_end - CALL_DUMMY_LENGTH         \
   && (pc) <= text_end + DECR_PC_AFTER_BREAK)
#endif /* Before text_end.  */

#if CALL_DUMMY_LOCATION == AFTER_TEXT_END
extern CORE_ADDR text_end;
#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
  ((pc) >= text_end   \
   && (pc) <= text_end + CALL_DUMMY_LENGTH + DECR_PC_AFTER_BREAK)
#endif /* After text_end.  */

#if CALL_DUMMY_LOCATION == ON_STACK
/* Is the PC in a call dummy?  SP and FRAME_ADDRESS are the bottom and
   top of the stack frame which we are checking, where "bottom" and
   "top" refer to some section of memory which contains the code for
   the call dummy.  Calls to this macro assume that the contents of
   SP_REGNUM and FP_REGNUM (or the saved values thereof), respectively,
   are the things to pass.

   This won't work on the 29k, where SP_REGNUM and FP_REGNUM don't
   have that meaning, but the 29k doesn't use ON_STACK.  This could be
   fixed by generalizing this scheme, perhaps by passing in a frame
   and adding a few fields, at least on machines which need them for
   PC_IN_CALL_DUMMY.

   Something simpler, like checking for the stack segment, doesn't work,
   since various programs (threads implementations, gcc nested function
   stubs, etc) may either allocate stack frames in another segment, or
   allocate other kinds of code on the stack.  */

#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
  ((sp) INNER_THAN (pc) && (frame_address != 0) && (pc) INNER_THAN (frame_address))
#endif /* On stack.  */

#if CALL_DUMMY_LOCATION == AT_ENTRY_POINT
extern CORE_ADDR
entry_point_address PARAMS ((void));
#define PC_IN_CALL_DUMMY(pc, sp, frame_address)			\
  ((pc) >= entry_point_address ()				\
   && (pc) <= (entry_point_address () + DECR_PC_AFTER_BREAK))
#endif /* At entry point.  */
#endif /* No PC_IN_CALL_DUMMY.  */

#endif	/* !defined (INFERIOR_H) */
Commit	Line	Data
bd5635a1 RP	1	/* Variables that describe the inferior process running under GDB:
bd5635a1 RP	2	Where it is, why it stopped, and how to step it.
cc221e76	3	Copyright 1986, 1989, 1992 Free Software Foundation, Inc.
bd5635a1 RP	4
	5	This file is part of GDB.
	6
bdbd5f50	7	This program is free software; you can redistribute it and/or modify
bd5635a1	8	it under the terms of the GNU General Public License as published by
bdbd5f50 JG	9	the Free Software Foundation; either version 2 of the License, or
bdbd5f50 JG	10	(at your option) any later version.
bd5635a1	11
bdbd5f50	12	This program is distributed in the hope that it will be useful,
bd5635a1 RP	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.
	16
	17	You should have received a copy of the GNU General Public License
bdbd5f50 JG	18	along with this program; if not, write to the Free Software
bdbd5f50 JG	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
bd5635a1	20
cc221e76 FF	21	#if !defined (INFERIOR_H)
	22	#define INFERIOR_H 1
	23
bd5635a1 RP	24	/* For bpstat. */
	25	#include "breakpoint.h"
	26
	27	/* For FRAME_ADDR. */
	28	#include "frame.h"
	29
	30	/*
	31	* Structure in which to save the status of the inferior. Save
	32	* through "save_inferior_status", restore through
	33	* "restore_inferior_status".
	34	* This pair of routines should be called around any transfer of
	35	* control to the inferior which you don't want showing up in your
	36	* control variables.
	37	*/
	38	struct inferior_status {
bd5635a1	39	int stop_signal;
100f92e2	40	CORE_ADDR stop_pc;
bd5635a1 RP	41	FRAME_ADDR stop_frame_address;
	42	bpstat stop_bpstat;
	43	int stop_step;
	44	int stop_stack_dummy;
	45	int stopped_by_random_signal;
	46	int trap_expected;
	47	CORE_ADDR step_range_start;
	48	CORE_ADDR step_range_end;
	49	FRAME_ADDR step_frame_address;
	50	int step_over_calls;
	51	CORE_ADDR step_resume_break_address;
	52	int stop_after_trap;
	53	int stop_soon_quietly;
	54	FRAME_ADDR selected_frame_address;
	55	int selected_level;
	56	char stop_registers[REGISTER_BYTES];
100f92e2 JK	57
	58	/* These are here because if call_function_by_hand has written some
	59	registers and then decides to call error(), we better not have changed
	60	any registers. */
	61	char registers[REGISTER_BYTES];
	62
bd5635a1 RP	63	int breakpoint_proceeded;
	64	int restore_stack_info;
	65	int proceed_to_finish;
	66	};
	67
cc221e76 FF	68	extern void
	69	save_inferior_status PARAMS ((struct inferior_status *, int));
	70
	71	extern void
	72	restore_inferior_status PARAMS ((struct inferior_status *));
bd5635a1	73
100f92e2 JK	74	extern void set_sigint_trap PARAMS ((void));
	75	extern void clear_sigint_trap PARAMS ((void));
	76
bd5635a1 RP	77	/* File name for default use for standard in/out in the inferior. */
	78
	79	extern char *inferior_io_terminal;
	80
	81	/* Pid of our debugged inferior, or 0 if no inferior now. */
	82
	83	extern int inferior_pid;
	84
	85	/* Character array containing an image of the inferior programs' registers. */
	86
	87	extern char registers[];
	88
310cc570 RP	89	/* Array of validity bits (one per register). Nonzero at position XXX_REGNUM
	90	means that `registers' contains a valid copy of inferior register XXX. */
	91
	92	extern char register_valid[NUM_REGS];
	93
cc221e76 FF	94	extern void
	95	clear_proceed_status PARAMS ((void));
	96
	97	extern void
	98	proceed PARAMS ((CORE_ADDR, int, int));
	99
	100	extern void
	101	kill_inferior PARAMS ((void));
	102
cc221e76 FF	103	extern void
	104	generic_mourn_inferior PARAMS ((void));
	105
	106	extern void
	107	terminal_ours PARAMS ((void));
	108
100f92e2	109	extern int run_stack_dummy PARAMS ((CORE_ADDR, char [REGISTER_BYTES]));
cc221e76 FF	110
	111	extern CORE_ADDR
	112	read_pc PARAMS ((void));
	113
	114	extern void
	115	write_pc PARAMS ((CORE_ADDR));
	116
23a8e291 JK	117	extern CORE_ADDR
	118	read_sp PARAMS ((void));
	119
	120	extern void
	121	write_sp PARAMS ((CORE_ADDR));
	122
	123	extern CORE_ADDR
	124	read_fp PARAMS ((void));
	125
	126	extern void
	127	write_fp PARAMS ((CORE_ADDR));
	128
cc221e76 FF	129	extern void
	130	wait_for_inferior PARAMS ((void));
	131
	132	extern void
	133	init_wait_for_inferior PARAMS ((void));
	134
	135	extern void
	136	close_exec_file PARAMS ((void));
	137
	138	extern void
	139	reopen_exec_file PARAMS ((void));
	140
3aa6856a JG	141	/* The `resume' routine should only be called in special circumstances.
3aa6856a JG	142	Normally, use `proceed', which handles a lot of bookkeeping. */
310cc570 RP	143	extern void
	144	resume PARAMS ((int, int));
	145
cc221e76 FF	146	/* From misc files */
	147
	148	extern void
	149	store_inferior_registers PARAMS ((int));
	150
	151	extern void
	152	fetch_inferior_registers PARAMS ((int));
	153
	154	extern void
	155	solib_create_inferior_hook PARAMS ((void));
	156
cc221e76 FF	157	extern void
	158	child_terminal_info PARAMS ((char *, int));
	159
	160	extern void
	161	term_info PARAMS ((char *, int));
	162
	163	extern void
	164	terminal_ours_for_output PARAMS ((void));
	165
	166	extern void
	167	terminal_inferior PARAMS ((void));
	168
	169	extern void
	170	terminal_init_inferior PARAMS ((void));
	171
34517ebc	172	/* From infptrace.c */
cc221e76 FF	173
	174	extern int
	175	attach PARAMS ((int));
	176
	177	void
	178	detach PARAMS ((int));
	179
	180	extern void
100f92e2	181	child_resume PARAMS ((int, int, int));
cc221e76	182
310cc570 RP	183	#ifndef PTRACE_ARG3_TYPE
	184	#define PTRACE_ARG3_TYPE int /* Correct definition for most systems. */
	185	#endif
	186
	187	extern int
	188	call_ptrace PARAMS ((int, int, PTRACE_ARG3_TYPE, int));
	189
cc221e76 FF	190	/* From procfs.c */
cc221e76 FF	191
cc221e76 FF	192	extern int
	193	proc_iterate_over_mappings PARAMS ((int (*) (int, CORE_ADDR)));
	194
34517ebc	195	/* From fork-child.c */
bd5635a1	196
34517ebc JG	197	extern void
	198	fork_inferior PARAMS ((char , char , char **,
	199	void (*) (void),
	200	void (*) (int)));
cc221e76 FF	201
	202	/* From inflow.c */
	203
	204	extern void
	205	new_tty_prefork PARAMS ((char *));
	206
23a8e291 JK	207	extern int gdb_has_a_terminal PARAMS ((void));
23a8e291 JK	208
cc221e76 FF	209	/* From infrun.c */
	210
	211	extern void
	212	start_remote PARAMS ((void));
	213
cc221e76 FF	214	extern void
	215	normal_stop PARAMS ((void));
	216
	217	extern int
	218	signal_stop_state PARAMS ((int));
	219
	220	extern int
	221	signal_print_state PARAMS ((int));
	222
	223	extern int
	224	signal_pass_state PARAMS ((int));
	225
	226	/* From infcmd.c */
	227
	228	extern void
	229	tty_command PARAMS ((char *, int));
	230
	231	extern void
	232	attach_command PARAMS ((char *, int));
	233
bd5635a1 RP	234	/* Last signal that the inferior received (why it stopped). */
	235
	236	extern int stop_signal;
	237
	238	/* Address at which inferior stopped. */
	239
	240	extern CORE_ADDR stop_pc;
	241
	242	/* Stack frame when program stopped. */
	243
	244	extern FRAME_ADDR stop_frame_address;
	245
	246	/* Chain containing status of breakpoint(s) that we have stopped at. */
	247
	248	extern bpstat stop_bpstat;
	249
	250	/* Flag indicating that a command has proceeded the inferior past the
	251	current breakpoint. */
	252
	253	extern int breakpoint_proceeded;
	254
	255	/* Nonzero if stopped due to a step command. */
	256
	257	extern int stop_step;
	258
	259	/* Nonzero if stopped due to completion of a stack dummy routine. */
	260
	261	extern int stop_stack_dummy;
	262
	263	/* Nonzero if program stopped due to a random (unexpected) signal in
	264	inferior process. */
	265
	266	extern int stopped_by_random_signal;
	267
	268	/* Range to single step within.
	269	If this is nonzero, respond to a single-step signal
100f92e2 JK	270	by continuing to step if the pc is in this range.
	271
	272	If step_range_start and step_range_end are both 1, it means to step for
	273	a single instruction (FIXME: it might clean up wait_for_inferior in a
	274	minor way if this were changed to the address of the instruction and
	275	that address plus one. But maybe not.). */
bd5635a1 RP	276
	277	extern CORE_ADDR step_range_start; /* Inclusive */
	278	extern CORE_ADDR step_range_end; /* Exclusive */
	279
	280	/* Stack frame address as of when stepping command was issued.
	281	This is how we know when we step into a subroutine call,
	282	and how to set the frame for the breakpoint used to step out. */
	283
	284	extern FRAME_ADDR step_frame_address;
	285
	286	/* 1 means step over all subroutine calls.
	287	-1 means step over calls to undebuggable functions. */
	288
	289	extern int step_over_calls;
	290
	291	/* If stepping, nonzero means step count is > 1
	292	so don't print frame next time inferior stops
	293	if it stops due to stepping. */
	294
	295	extern int step_multi;
	296
bdbd5f50 JG	297	/* Nonzero means expecting a trap and caller will handle it themselves.
	298	It is used after attach, due to attaching to a process;
	299	when running in the shell before the child program has been exec'd;
	300	and when running some kinds of remote stuff (FIXME?). */
	301
cc221e76	302	extern int stop_soon_quietly;
bdbd5f50	303
bd5635a1 RP	304	/* Nonzero if proceed is being used for a "finish" command or a similar
	305	situation when stop_registers should be saved. */
	306
	307	extern int proceed_to_finish;
	308
	309	/* Save register contents here when about to pop a stack dummy frame,
	310	if-and-only-if proceed_to_finish is set.
	311	Thus this contains the return value from the called function (assuming
	312	values are returned in a register). */
	313
	314	extern char stop_registers[REGISTER_BYTES];
	315
bd5635a1 RP	316	/* Nonzero if the child process in inferior_pid was attached rather
	317	than forked. */
	318
cc221e76	319	extern int attach_flag;
bd5635a1	320	\f
23a8e291 JK	321	/* Sigtramp is a routine that the kernel calls (which then calls the
	322	signal handler). On most machines it is a library routine that
	323	is linked into the executable.
	324
	325	This macro, given a program counter value and the name of the
	326	function in which that PC resides (which can be null if the
	327	name is not known), returns nonzero if the PC and name show
	328	that we are in sigtramp.
	329
	330	On most machines just see if the name is sigtramp (and if we have
	331	no name, assume we are not in sigtramp). */
	332	#if !defined (IN_SIGTRAMP)
	333	# if defined (SIGTRAMP_START)
	334	# define IN_SIGTRAMP(pc, name) \
	335	((pc) >= SIGTRAMP_START \
	336	&& (pc) < SIGTRAMP_END \
	337	)
	338	# else
	339	# define IN_SIGTRAMP(pc, name) \
	340	(name && STREQ ("_sigtramp", name))
	341	# endif
	342	#endif
	343	\f
bd5635a1 RP	344	/* Possible values for CALL_DUMMY_LOCATION. */
	345	#define ON_STACK 1
	346	#define BEFORE_TEXT_END 2
	347	#define AFTER_TEXT_END 3
100f92e2	348	#define AT_ENTRY_POINT 4
bd5635a1 RP	349
bd5635a1 RP	350	#if !defined (CALL_DUMMY_LOCATION)
bd5635a1	351	#define CALL_DUMMY_LOCATION ON_STACK
bd5635a1 RP	352	#endif /* No CALL_DUMMY_LOCATION. */
	353
	354	/* Are we in a call dummy? The code below which allows DECR_PC_AFTER_BREAK
	355	below is for infrun.c, which may give the macro a pc without that
	356	subtracted out. */
	357	#if !defined (PC_IN_CALL_DUMMY)
	358	#if CALL_DUMMY_LOCATION == BEFORE_TEXT_END
cc221e76	359	extern CORE_ADDR text_end;
bd5635a1 RP	360	#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
bd5635a1 RP	361	((pc) >= text_end - CALL_DUMMY_LENGTH \
34517ebc	362	&& (pc) <= text_end + DECR_PC_AFTER_BREAK)
100f92e2 JK	363	#endif /* Before text_end. */
100f92e2 JK	364
bd5635a1	365	#if CALL_DUMMY_LOCATION == AFTER_TEXT_END
cc221e76	366	extern CORE_ADDR text_end;
bd5635a1 RP	367	#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
bd5635a1 RP	368	((pc) >= text_end \
34517ebc	369	&& (pc) <= text_end + CALL_DUMMY_LENGTH + DECR_PC_AFTER_BREAK)
100f92e2	370	#endif /* After text_end. */
f49cf589	371
100f92e2	372	#if CALL_DUMMY_LOCATION == ON_STACK
23a8e291 JK	373	/* Is the PC in a call dummy? SP and FRAME_ADDRESS are the bottom and
	374	top of the stack frame which we are checking, where "bottom" and
	375	"top" refer to some section of memory which contains the code for
	376	the call dummy. Calls to this macro assume that the contents of
	377	SP_REGNUM and FP_REGNUM (or the saved values thereof), respectively,
	378	are the things to pass.
	379
	380	This won't work on the 29k, where SP_REGNUM and FP_REGNUM don't
	381	have that meaning, but the 29k doesn't use ON_STACK. This could be
	382	fixed by generalizing this scheme, perhaps by passing in a frame
	383	and adding a few fields, at least on machines which need them for
	384	PC_IN_CALL_DUMMY.
	385
	386	Something simpler, like checking for the stack segment, doesn't work,
	387	since various programs (threads implementations, gcc nested function
	388	stubs, etc) may either allocate stack frames in another segment, or
	389	allocate other kinds of code on the stack. */
f49cf589	390
bd5635a1	391	#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
f49cf589	392	((sp) INNER_THAN (pc) && (frame_address != 0) && (pc) INNER_THAN (frame_address))
bd5635a1	393	#endif /* On stack. */
100f92e2 JK	394
	395	#if CALL_DUMMY_LOCATION == AT_ENTRY_POINT
	396	extern CORE_ADDR
	397	entry_point_address PARAMS ((void));
	398	#define PC_IN_CALL_DUMMY(pc, sp, frame_address) \
	399	((pc) >= entry_point_address () \
	400	&& (pc) <= (entry_point_address () + DECR_PC_AFTER_BREAK))
	401	#endif /* At entry point. */
bd5635a1	402	#endif /* No PC_IN_CALL_DUMMY. */
cc221e76 FF	403
cc221e76 FF	404	#endif /* !defined (INFERIOR_H) */