1 files changed, 137 insertions, 0 deletions
diff --git a/sys/ddb/db_kld.c b/sys/ddb/db_kld.c
new file mode 100644
index 0000000..48ba135
--- /dev/null
+++ b/sys/ddb/db_kld.c
@@ -0,0 +1,137 @@
+/*
+ * 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.
+ *
+ *	$Id$
+ *	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 a.out format files.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/linker.h>
+
+#include <machine/bootinfo.h>
+
+#include <ddb/ddb.h>
+#include <ddb/db_sym.h>
+
+extern linker_file_t linker_kernel_file;
+
+#define KF linker_kernel_file
+
+db_sym_t
+X_db_lookup(stab, symstr)
+	db_symtab_t	*stab;
+	char *		symstr;
+{
+	linker_sym_t sym;
+
+	if (!KF)
+		return 0;
+
+	if (KF->ops->lookup_symbol(KF, symstr, &sym) == 0)
+	    return (db_sym_t) sym;
+	else
+	    return (db_sym_t) 0;
+}
+
+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 */
+{
+	linker_sym_t sym;
+	long diff;
+
+	if (!KF)
+		return 0;
+
+	if (KF->ops->search_symbol(KF, (caddr_t) off, &sym, &diff) == 0) {
+		*diffp = (db_expr_t) diff;
+		return (db_sym_t) sym;
+	}
+
+	return 0;
+}
+
+/*
+ * Return the name and value for a symbol.
+ */
+void
+X_db_symbol_values(dbsym, namep, valuep)
+	db_sym_t	dbsym;
+	char		**namep;
+	db_expr_t	*valuep;
+{
+	linker_sym_t sym = (linker_sym_t) dbsym;
+	linker_symval_t symval;
+
+	KF->ops->symbol_values(KF, sym, &symval);
+	if (namep)
+	    *namep = (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;
+	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;
+	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);
+}