1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 # define DEBUG_SUBSYSTEM S_LNET
39 #include <libcfs/libcfs.h>
40 #include "tracefile.h"
42 void libcfs_debug_dumpstack(cfs_task_t *tsk)
47 void libcfs_run_lbug_upcall(const char *file, const char *fn, const int line)
51 void lbug_with_loc(const char *file, const char *func, const int line)
53 libcfs_catastrophe = 1;
54 CEMERG("LBUG: pid: %u thread: %#x\n",
55 (unsigned)cfs_curproc_pid(), (unsigned)current_thread());
56 libcfs_debug_dumplog();
57 libcfs_run_lbug_upcall(file, func, line);
61 /* panic("lbug_with_loc(%s, %s, %d)", file, func, line) */
64 #if ENTRY_NESTING_SUPPORT
66 static inline struct cfs_debug_data *__current_cdd(void)
68 struct cfs_debug_data *cdd;
70 cdd = (struct cfs_debug_data *)current_uthread()->uu_nlminfo;
72 cdd->magic1 == CDD_MAGIC1 && cdd->magic2 == CDD_MAGIC2 &&
73 cdd->nesting_level < 1000)
79 static inline void __current_cdd_set(struct cfs_debug_data *cdd)
81 current_uthread()->uu_nlminfo = (void *)cdd;
84 void __entry_nesting(struct cfs_debug_data *child)
86 struct cfs_debug_data *parent;
88 parent = __current_cdd();
90 child->parent = parent;
91 child->nesting_level = parent->nesting_level + 1;
93 __current_cdd_set(child);
96 void __exit_nesting(struct cfs_debug_data *child)
98 __current_cdd_set(child->parent);
101 unsigned int __current_nesting_level(void)
103 struct cfs_debug_data *cdd;
105 cdd = __current_cdd();
107 return cdd->nesting_level;
111 /* ENTRY_NESTING_SUPPORT */