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/*
* 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
* 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.
*
* from db_aout.c,v 1.20 1998/06/07 17:09:36 dfr Exp
*/
/*
* Author: David B. Golub, Carnegie Mellon University
* Date: 7/90
*/
/*
* Symbol table routines for kld maintained kernels.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_ddb.h"
#ifndef DDB_NOKLDSYM
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/linker.h>
#include <ddb/ddb.h>
#include <ddb/db_sym.h>
c_db_sym_t
X_db_lookup(stab, symstr)
db_symtab_t *stab;
const char * symstr;
{
c_linker_sym_t sym;
if (linker_ddb_lookup(symstr, &sym) == 0)
return (c_db_sym_t) sym;
else
return (c_db_sym_t) 0;
}
c_db_sym_t
X_db_search_symbol(symtab, off, strategy, diffp)
db_symtab_t * symtab;
register
db_addr_t off;
db_strategy_t strategy;
db_expr_t *diffp; /* in/out */
{
c_linker_sym_t sym;
long diff;
if (linker_ddb_search_symbol((caddr_t) off, &sym, &diff) == 0) {
*diffp = (db_expr_t) diff;
return (c_db_sym_t) sym;
}
return 0;
}
/*
* Return the name and value for a symbol.
*/
void
X_db_symbol_values(symtab, dbsym, namep, valuep)
db_symtab_t *symtab;
c_db_sym_t dbsym;
const char **namep;
db_expr_t *valuep;
{
c_linker_sym_t sym = (c_linker_sym_t) dbsym;
linker_symval_t symval;
linker_ddb_symbol_values(sym, &symval);
if (namep)
*namep = (const char*) symval.name;
if (valuep)
*valuep = (db_expr_t) symval.value;
}
boolean_t
X_db_line_at_pc(symtab, cursym, filename, linenum, off)
db_symtab_t * symtab;
c_db_sym_t cursym;
char **filename;
int *linenum;
db_expr_t off;
{
return FALSE;
}
boolean_t
X_db_sym_numargs(symtab, cursym, nargp, argnamep)
db_symtab_t * symtab;
c_db_sym_t cursym;
int *nargp;
char **argnamep;
{
return FALSE;
}
/*
* Initialization routine for a.out files.
*/
void
kdb_init()
{
db_add_symbol_table(0, 0, "kernel", 0);
}
#endif /* !DDB_NOKLDSYM */
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