151 lines
4.8 KiB
C
151 lines
4.8 KiB
C
/* $NetBSD: db_sym.h,v 1.16 2002/02/15 07:33:53 simonb Exp $ */
|
|
|
|
/*
|
|
* Mach Operating System
|
|
* Copyright (c) 1991,1990 Carnegie Mellon University
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and its
|
|
* documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
|
|
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*
|
|
* Author: Alessandro Forin, Carnegie Mellon University
|
|
* Date: 8/90
|
|
*/
|
|
|
|
/*
|
|
* This module can handle multiple symbol tables
|
|
*/
|
|
typedef struct {
|
|
const char *name; /* symtab name */
|
|
char *start; /* symtab location */
|
|
char *end;
|
|
char *private; /* optional machdep pointer */
|
|
} db_symtab_t;
|
|
|
|
extern db_symtab_t *db_last_symtab; /* where last symbol was found */
|
|
|
|
/*
|
|
* Symbol representation is specific to the symtab style:
|
|
* BSD compilers use dbx' nlist, other compilers might use
|
|
* a different one
|
|
*/
|
|
typedef char * db_sym_t; /* opaque handle on symbols */
|
|
#define DB_SYM_NULL ((db_sym_t)0)
|
|
|
|
/*
|
|
* Non-stripped symbol tables will have duplicates, for instance
|
|
* the same string could match a parameter name, a local var, a
|
|
* global var, etc.
|
|
* We are most concern with the following matches.
|
|
*/
|
|
typedef int db_strategy_t; /* search strategy */
|
|
|
|
#define DB_STGY_ANY 0 /* anything goes */
|
|
#define DB_STGY_XTRN 1 /* only external symbols */
|
|
#define DB_STGY_PROC 2 /* only procedures */
|
|
|
|
|
|
/*
|
|
* Internal db_forall function calling convention:
|
|
*
|
|
* (*db_forall_func)(stab, sym, name, suffix, prefix, arg);
|
|
*
|
|
* stab is the symbol table, symbol the (opaque) symbol pointer,
|
|
* name the name of the symbol, suffix a string representing
|
|
* the type, prefix an initial ignorable function prefix (e.g. "_"
|
|
* in a.out), and arg an opaque argument to be passed in.
|
|
*/
|
|
typedef void (db_forall_func_t)
|
|
(db_symtab_t *, db_sym_t, char *, char *, int, void *);
|
|
|
|
/*
|
|
* A symbol table may be in one of many formats. All symbol tables
|
|
* must be of the same format as the master kernel symbol table.
|
|
*/
|
|
typedef struct {
|
|
const char *sym_format;
|
|
boolean_t (*sym_init)(int, void *, void *, const char *);
|
|
db_sym_t (*sym_lookup)(db_symtab_t *, char *);
|
|
db_sym_t (*sym_search)(db_symtab_t *, db_addr_t, db_strategy_t,
|
|
db_expr_t *);
|
|
void (*sym_value)(db_symtab_t *, db_sym_t, char **,
|
|
db_expr_t *);
|
|
boolean_t (*sym_line_at_pc)(db_symtab_t *, db_sym_t, char **,
|
|
int *, db_expr_t);
|
|
boolean_t (*sym_numargs)(db_symtab_t *, db_sym_t, int *, char **);
|
|
void (*sym_forall)(db_symtab_t *,
|
|
db_forall_func_t *db_forall_func, void *);
|
|
} db_symformat_t;
|
|
|
|
extern boolean_t db_qualify_ambiguous_names;
|
|
/* if TRUE, check across symbol tables
|
|
* for multiple occurrences of a name.
|
|
* Might slow down quite a bit */
|
|
|
|
extern unsigned int db_maxoff; /* like gdb's "max-symbolic-offset" */
|
|
|
|
/*
|
|
* Functions exported by the symtable module
|
|
*/
|
|
int db_add_symbol_table(char *, char *, const char *, char *);
|
|
/* extend the list of symbol tables */
|
|
|
|
void db_del_symbol_table(char *);
|
|
/* remove a symbol table from list */
|
|
|
|
boolean_t db_eqname(char *, char *, int);
|
|
/* strcmp, modulo leading char */
|
|
|
|
int db_value_of_name(char *, db_expr_t *);
|
|
/* find symbol value given name */
|
|
|
|
void db_sifting(char *, int);
|
|
/* print partially matching symbol names */
|
|
|
|
boolean_t db_symbol_is_ambiguous(db_sym_t);
|
|
|
|
db_sym_t db_search_symbol(db_addr_t, db_strategy_t, db_expr_t *);
|
|
/* find symbol given value */
|
|
|
|
void db_symbol_values(db_sym_t, char **, db_expr_t *);
|
|
/* return name and value of symbol */
|
|
|
|
#define db_find_sym_and_offset(val,namep,offp) \
|
|
db_symbol_values(db_search_symbol(val,DB_STGY_ANY,offp),namep,0)
|
|
/* find name&value given approx val */
|
|
|
|
#define db_find_xtrn_sym_and_offset(val,namep,offp) \
|
|
db_symbol_values(db_search_symbol(val,DB_STGY_XTRN,offp),namep,0)
|
|
/* ditto, but no locals */
|
|
|
|
void db_symstr(char *, db_expr_t, db_strategy_t);
|
|
void db_printsym(db_expr_t, db_strategy_t,
|
|
void(*)(const char *, ...));
|
|
/* print closest symbol to a value */
|
|
|
|
int db_sym_numargs(db_sym_t, int *, char **);
|
|
|
|
#ifdef DB_AOUT_SYMBOLS
|
|
extern const db_symformat_t db_symformat_aout;
|
|
#endif
|
|
#ifdef DB_ELF_SYMBOLS
|
|
extern const db_symformat_t db_symformat_elf;
|
|
#endif
|