2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
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.
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.
16 * Carnegie Mellon requests users of this software to return to
18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
19 * School of Computer Science
20 * Carnegie Mellon University
21 * Pittsburgh PA 15213-3890
23 * any improvements or extensions that they make and grant Carnegie the
24 * rights to redistribute these changes.
26 * $FreeBSD: src/sys/ddb/db_kld.c,v 1.9 2000/01/11 13:25:12 peter Exp $
27 * $DragonFly: src/sys/ddb/db_kld.c,v 1.5 2008/07/23 16:39:32 dillon Exp $
28 * from db_aout.c,v 1.20 1998/06/07 17:09:36 dfr Exp
32 * Author: David B. Golub, Carnegie Mellon University
36 * Symbol table routines for kld maintained kernels.
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/linker.h>
44 #include <ddb/db_sym.h>
46 #if defined(__x86_64__)
47 vm_offset_t ksym_start, ksym_end;
51 X_db_lookup(db_symtab_t *stab, const char *symstr)
55 if (linker_ddb_lookup(symstr, &sym) == 0)
56 return (c_db_sym_t) sym;
58 return (c_db_sym_t) 0;
66 X_db_search_symbol(db_symtab_t *symtab, db_addr_t off, db_strategy_t strategy,
72 if (linker_ddb_search_symbol((caddr_t) off, &sym, &diff) == 0) {
73 *diffp = (db_expr_t) diff;
74 return (c_db_sym_t) sym;
81 * Return the name and value for a symbol.
84 X_db_symbol_values(db_symtab_t *symtab, c_db_sym_t dbsym, const char **namep,
87 c_linker_sym_t sym = (c_linker_sym_t) dbsym;
88 linker_symval_t symval;
90 linker_ddb_symbol_values(sym, &symval);
92 *namep = (const char*) symval.name;
94 *valuep = (db_expr_t) symval.value;
99 X_db_line_at_pc(db_symtab_t *symtab, c_db_sym_t cursym, char **filename,
100 int *linenum, db_expr_t off)
106 X_db_sym_numargs(db_symtab_t *symtab, c_db_sym_t cursym, int *nargp,
113 * Initialization routine for a.out files.
118 db_add_symbol_table(0, 0, "kernel", 0);