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Commit	Line	Data
	1	/* Machine independent variables that describe the core file under GDB.
	2	Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
	3	1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
	4
	5	This file is part of GDB.
	6
	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.
	11
	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.
	16
	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. */
	21
	22	/* Interface routines for core, executable, etc. */
	23
	24	#if !defined (GDBCORE_H)
	25	#define GDBCORE_H 1
	26
	27	#include "bfd.h"
	28
	29	/* Return the name of the executable file as a string.
	30	ERR nonzero means get error if there is none specified;
	31	otherwise return 0 in that case. */
	32
	33	extern char *get_exec_file (int err);
	34
	35	/* Nonzero if there is a core file. */
	36
	37	extern int have_core_file_p (void);
	38
	39	/* Read "memory data" from whatever target or inferior we have.
	40	Returns zero if successful, errno value if not. EIO is used for
	41	address out of bounds. If breakpoints are inserted, returns shadow
	42	contents, not the breakpoints themselves. From breakpoint.c. */
	43
	44	extern int read_memory_nobpt (CORE_ADDR memaddr, char *myaddr, unsigned len);
	45
	46	/* Report a memory error with error(). */
	47
	48	extern void memory_error (int status, CORE_ADDR memaddr);
	49
	50	/* Like target_read_memory, but report an error if can't read. */
	51
	52	extern void read_memory (CORE_ADDR memaddr, char *myaddr, int len);
	53
	54	/* Read an integer from debugged memory, given address and number of
	55	bytes. */
	56
	57	extern LONGEST read_memory_integer (CORE_ADDR memaddr, int len);
	58
	59	/* Read an unsigned integer from debugged memory, given address and
	60	number of bytes. */
	61
	62	extern ULONGEST read_memory_unsigned_integer (CORE_ADDR memaddr, int len);
	63
	64	/* Read a null-terminated string from the debuggee's memory, given address,
	65	* a buffer into which to place the string, and the maximum available space */
	66	extern void read_memory_string (CORE_ADDR, char *, int);
	67
	68	/* This takes a char , not void . This is probably right, because
	69	passing in an int * or whatever is wrong with respect to
	70	byteswapping, alignment, different sizes for host vs. target types,
	71	etc. */
	72
	73	extern void write_memory (CORE_ADDR memaddr, char *myaddr, int len);
	74
	75	extern void generic_search (int len, char data, char mask,
	76	CORE_ADDR startaddr, int increment,
	77	CORE_ADDR lorange, CORE_ADDR hirange,
	78	CORE_ADDR * addr_found, char *data_found);
	79	\f
	80	/* Hook for `exec_file_command' command to call. */
	81
	82	extern void (exec_file_display_hook) (char filename);
	83
	84	/* Hook for "file_command", which is more useful than above
	85	(because it is invoked AFTER symbols are read, not before) */
	86
	87	extern void (file_changed_hook) (char filename);
	88
	89	extern void specify_exec_file_hook (void (hook) (char filename));
	90
	91	/* Binary File Diddlers for the exec and core files */
	92
	93	extern bfd *core_bfd;
	94	extern bfd *exec_bfd;
	95
	96	/* Whether to open exec and core files read-only or read-write. */
	97
	98	extern int write_files;
	99
	100	extern void core_file_command (char *filename, int from_tty);
	101
	102	extern void exec_open (char *filename, int from_tty);
	103
	104	extern void exec_file_attach (char *filename, int from_tty);
	105
	106	extern void exec_file_clear (int from_tty);
	107
	108	extern void validate_files (void);
	109
	110	extern CORE_ADDR register_addr (int regno, CORE_ADDR blockend);
	111
	112	#if !defined (KERNEL_U_ADDR)
	113	extern CORE_ADDR kernel_u_addr;
	114	#define KERNEL_U_ADDR kernel_u_addr
	115	#endif
	116
	117	/* The target vector for core files. */
	118
	119	extern struct target_ops core_ops;
	120
	121	/* The current default bfd target. */
	122
	123	extern char *gnutarget;
	124
	125	extern void set_gnutarget (char *);
	126
	127	/* Structure to keep track of core register reading functions for
	128	various core file types. */
	129
	130	struct core_fns
	131	{
	132
	133	/* BFD flavour that a core file handler is prepared to read. This
	134	can be used by the handler's core tasting function as a first
	135	level filter to reject BFD's that don't have the right
	136	flavour. */
	137
	138	enum bfd_flavour core_flavour;
	139
	140	/* Core file handler function to call to recognize corefile
	141	formats that BFD rejects. Some core file format just don't fit
	142	into the BFD model, or may require other resources to identify
	143	them, that simply aren't available to BFD (such as symbols from
	144	another file). Returns nonzero if the handler recognizes the
	145	format, zero otherwise. */
	146
	147	int (check_format) (bfd );
	148
	149	/* Core file handler function to call to ask if it can handle a
	150	given core file format or not. Returns zero if it can't,
	151	nonzero otherwise. */
	152
	153	int (core_sniffer) (struct core_fns , bfd *);
	154
	155	/* Extract the register values out of the core file and store them where
	156	`read_register' will find them.
	157
	158	CORE_REG_SECT points to the register values themselves, read into
	159	memory.
	160
	161	CORE_REG_SIZE is the size of that area.
	162
	163	WHICH says which set of registers we are handling:
	164	0 --- integer registers
	165	2 --- floating-point registers, on machines where they are
	166	discontiguous
	167	3 --- extended floating-point registers, on machines where
	168	these are present in yet a third area. (GNU/Linux uses
	169	this to get at the SSE registers.)
	170
	171	REG_ADDR is the offset from u.u_ar0 to the register values relative to
	172	core_reg_sect. This is used with old-fashioned core files to locate the
	173	registers in a large upage-plus-stack ".reg" section. Original upage
	174	address X is at location core_reg_sect+x+reg_addr. */
	175
	176	void (core_read_registers) (char core_reg_sect,
	177	unsigned core_reg_size,
	178	int which, CORE_ADDR reg_addr);
	179
	180	/* Finds the next struct core_fns. They are allocated and initialized
	181	in whatever module implements the functions pointed to; an
	182	initializer calls add_core_fns to add them to the global chain. */
	183
	184	struct core_fns *next;
	185
	186	};
	187
	188	extern void add_core_fns (struct core_fns *cf);
	189	extern int default_core_sniffer (struct core_fns cf, bfd abfd);
	190	extern int default_check_format (bfd * abfd);
	191
	192	#endif /* !defined (GDBCORE_H) */