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Commit	Line	Data
984263bc MD	1	/*
	2	* Mach Operating System
	3	* Copyright (c) 1991,1990 Carnegie Mellon University
	4	* All Rights Reserved.
	5	*
	6	* Permission to use, copy, modify and distribute this software and its
	7	* documentation is hereby granted, provided that both the copyright
	8	* notice and this permission notice appear in all copies of the
	9	* software, derivative works or modified versions, and any portions
	10	* thereof, and that both notices appear in supporting documentation.
	11	*
	12	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
	13	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	14	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	15	*
	16	* Carnegie Mellon requests users of this software to return to
	17	*
	18	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	19	* School of Computer Science
	20	* Carnegie Mellon University
	21	* Pittsburgh PA 15213-3890
	22	*
	23	* any improvements or extensions that they make and grant Carnegie the
	24	* rights to redistribute these changes.
	25	*
	26	* $FreeBSD: src/sys/ddb/db_sym.h,v 1.19 1999/08/28 00:41:10 peter Exp $
	27	*/
	28
	29	#ifndef _DDB_DB_SYM_H_
	30	#define _DDB_DB_SYM_H_
	31
1bd40720 MD	32	#ifndef _DDB_DDB_H_
	33	#include <ddb/ddb.h>
	34	#endif
	35
984263bc MD	36	/*
	37	* Author: Alessandro Forin, Carnegie Mellon University
	38	* Date: 8/90
	39	*/
	40
	41	/*
	42	* This module can handle multiple symbol tables
	43	*/
	44	typedef struct {
	45	char name; / symtab name */
	46	char start; / symtab location */
	47	char *end;
	48	char private; / optional machdep pointer */
	49	} db_symtab_t;
	50
	51	/*
	52	* Symbol representation is specific to the symtab style:
	53	* BSD compilers use dbx' nlist, other compilers might use
	54	* a different one
	55	*/
	56	typedef char * db_sym_t; /* opaque handle on symbols */
	57	typedef const char * c_db_sym_t; /* opaque handle on symbols */
	58	#define DB_SYM_NULL ((db_sym_t)0)
	59	#define C_DB_SYM_NULL ((c_db_sym_t)0)
	60
	61	/*
	62	* Non-stripped symbol tables will have duplicates, for instance
	63	* the same string could match a parameter name, a local var, a
	64	* global var, etc.
	65	* We are most concern with the following matches.
	66	*/
	67	typedef int db_strategy_t; /* search strategy */
	68
	69	#define DB_STGY_ANY 0 /* anything goes */
	70	#define DB_STGY_XTRN 1 /* only external symbols */
	71	#define DB_STGY_PROC 2 /* only procedures */
	72
	73	/*
	74	* Functions exported by the symtable module
	75	*/
43c0ece6	76	void db_add_symbol_table (char , char , char , char );
984263bc MD	77	/* extend the list of symbol tables */
984263bc MD	78
43c0ece6	79	c_db_sym_t db_search_symbol (db_addr_t, db_strategy_t, db_expr_t *);
984263bc MD	80	/* find symbol given value */
984263bc MD	81
43c0ece6	82	void db_symbol_values (c_db_sym_t, const char *, db_expr_t );
984263bc MD	83	/* return name and value of symbol */
	84
	85	#define db_find_sym_and_offset(val,namep,offp) \
	86	db_symbol_values(db_search_symbol(val,DB_STGY_ANY,offp),namep,0)
	87	/* find name&value given approx val */
	88
	89	#define db_find_xtrn_sym_and_offset(val,namep,offp) \
	90	db_symbol_values(db_search_symbol(val,DB_STGY_XTRN,offp),namep,0)
	91	/* ditto, but no locals */
	92
99ebfb7c	93	boolean_t db_eqname (const char , const char , int);
984263bc MD	94	/* strcmp, modulo leading char */
984263bc MD	95
43c0ece6	96	void db_printsym (db_expr_t, db_strategy_t);
984263bc MD	97	/* print closest symbol to a value */
984263bc MD	98
43c0ece6	99	int db_sym_numargs (c_db_sym_t, int , char *);
984263bc	100
43c0ece6	101	boolean_t X_db_line_at_pc (db_symtab_t *symtab, c_db_sym_t cursym,
984263bc	102	char *filename, int linenum,
43c0ece6 RG	103	db_expr_t off);
	104	c_db_sym_t X_db_lookup (db_symtab_t stab, const char symstr);
	105	c_db_sym_t X_db_search_symbol (db_symtab_t *symtab, db_addr_t off,
984263bc	106	db_strategy_t strategy,
43c0ece6	107	db_expr_t *diffp);
99ebfb7c	108	boolean_t X_db_sym_numargs (db_symtab_t , c_db_sym_t, int ,
43c0ece6 RG	109	char **);
43c0ece6 RG	110	void X_db_symbol_values (db_symtab_t *symtab,
984263bc	111	c_db_sym_t sym, const char **namep,
43c0ece6	112	db_expr_t *valuep);
984263bc MD	113
984263bc MD	114	#endif /* !_DDB_DB_SYM_H_ */