HAMMER Utilities: Mirroring and pseudo-fs directives
[dragonfly.git] / sys / ddb / db_kld.c
blobf48d1451bb42b421ea42826d62d8347969c6d229
1 /*
2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
4 * All Rights Reserved.
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 1.4 2005/12/23 21:35:44 swildner 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
33 * Date: 7/90
36 * Symbol table routines for kld maintained kernels.
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/linker.h>
43 #include <ddb/ddb.h>
44 #include <ddb/db_sym.h>
46 c_db_sym_t
47 X_db_lookup(db_symtab_t *stab, const char *symstr)
49 c_linker_sym_t sym;
51 if (linker_ddb_lookup(symstr, &sym) == 0)
52 return (c_db_sym_t) sym;
53 else
54 return (c_db_sym_t) 0;
58 * Parameters:
59 * diffp: in/out
61 c_db_sym_t
62 X_db_search_symbol(db_symtab_t *symtab, db_addr_t off, db_strategy_t strategy,
63 db_expr_t *diffp)
65 c_linker_sym_t sym;
66 long diff;
68 if (linker_ddb_search_symbol((caddr_t) off, &sym, &diff) == 0) {
69 *diffp = (db_expr_t) diff;
70 return (c_db_sym_t) sym;
73 return 0;
77 * Return the name and value for a symbol.
79 void
80 X_db_symbol_values(db_symtab_t *symtab, c_db_sym_t dbsym, const char **namep,
81 db_expr_t *valuep)
83 c_linker_sym_t sym = (c_linker_sym_t) dbsym;
84 linker_symval_t symval;
86 linker_ddb_symbol_values(sym, &symval);
87 if (namep)
88 *namep = (const char*) symval.name;
89 if (valuep)
90 *valuep = (db_expr_t) symval.value;
94 boolean_t
95 X_db_line_at_pc(db_symtab_t *symtab, c_db_sym_t cursym, char **filename,
96 int *linenum, db_expr_t off)
98 return FALSE;
101 boolean_t
102 X_db_sym_numargs(db_symtab_t *symtab, c_db_sym_t cursym, int *nargp,
103 char **argnamep)
105 return FALSE;
109 * Initialization routine for a.out files.
111 void
112 kdb_init(void)
114 db_add_symbol_table(0, 0, "kernel", 0);