mirror of
https://github.com/schoebel/mars
synced 2024-12-22 06:40:52 +00:00
131 lines
3.9 KiB
C
131 lines
3.9 KiB
C
/*
|
|
* MARS Long Distance Replication Software
|
|
*
|
|
* This file is part of MARS project: http://schoebel.github.io/mars/
|
|
*
|
|
* Copyright (C) 2010-2014 Thomas Schoebel-Theuer
|
|
* Copyright (C) 2011-2014 1&1 Internet AG
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef BRICK_CHECKING_H
|
|
#define BRICK_CHECKING_H
|
|
|
|
/////////////////////////////////////////////////////////////////////////
|
|
|
|
// checking
|
|
|
|
#if defined(CONFIG_MARS_DEBUG) || defined(CONFIG_MARS_CHECKS)
|
|
#define BRICK_CHECKING true
|
|
#else
|
|
#define BRICK_CHECKING false
|
|
#endif
|
|
|
|
#define _CHECK_ATOMIC(atom,OP,minval) \
|
|
do { \
|
|
if (BRICK_CHECKING) { \
|
|
int __test = atomic_read(atom); \
|
|
if (unlikely(__test OP (minval))) { \
|
|
atomic_set(atom, minval); \
|
|
BRICK_ERR("%d: atomic " #atom " " #OP " " #minval " (%d)\n", __LINE__, __test); \
|
|
} \
|
|
} \
|
|
} while (0)
|
|
|
|
#define CHECK_ATOMIC(atom,minval) \
|
|
_CHECK_ATOMIC(atom, <, minval)
|
|
|
|
#define CHECK_HEAD_EMPTY(head) \
|
|
do { \
|
|
if (BRICK_CHECKING && \
|
|
unlikely(!list_empty(head) && \
|
|
(head)->next && \
|
|
(head)->next != LIST_POISON1 && \
|
|
(head)->prev != LIST_POISON2)) { \
|
|
list_del_init(head); \
|
|
BRICK_ERR("%d: list_head " #head " (%p) not empty\n", __LINE__, head); \
|
|
} \
|
|
} while (0)
|
|
|
|
#ifdef CONFIG_MARS_DEBUG_MEM
|
|
#define CHECK_PTR_DEAD(ptr,label) \
|
|
do { \
|
|
if (BRICK_CHECKING && \
|
|
unlikely( \
|
|
((unsigned long)(ptr) & 0xffffffff) == 0x5a5a5a5a || \
|
|
((unsigned long)(ptr) & 0xffffffff) == 0x6b6b6b6b)) { \
|
|
BRICK_FAT("%d: pointer '" #ptr "' is DEAD\n", __LINE__); \
|
|
goto label; \
|
|
} \
|
|
} while (0)
|
|
#else
|
|
#define CHECK_PTR_DEAD(ptr,label) /*empty*/
|
|
#endif
|
|
|
|
/* Counterpart of CHECK_PTR_NULL().
|
|
* Most of the consequences should be caught by the compiler,
|
|
* without producing code (potentially except some debugging code).
|
|
* Otherwise, or when dump_stack()ing at runtime, code inspection should be
|
|
* tightened.
|
|
* So this is essentially a self-check against common bugs, often introduced
|
|
* during reorgs.
|
|
*/
|
|
#ifdef BRICK_CHECKING
|
|
#define SET_PTR_NULL(ptr) (ptr) = NULL
|
|
#else
|
|
#define SET_PTR_NULL(ptr) /* empty */
|
|
#endif
|
|
|
|
#define CHECK_PTR_NULL(ptr,label) \
|
|
do { \
|
|
CHECK_PTR_DEAD(ptr, label); \
|
|
if (BRICK_CHECKING && unlikely(!(ptr))) { \
|
|
BRICK_FAT("%d: pointer '" #ptr "' is NULL\n", __LINE__); \
|
|
goto label; \
|
|
} \
|
|
} while (0)
|
|
|
|
#ifdef CONFIG_MARS_DEBUG
|
|
#define CHECK_PTR(ptr,label) \
|
|
do { \
|
|
CHECK_PTR_NULL(ptr, label); \
|
|
if (BRICK_CHECKING && unlikely(!virt_addr_valid(ptr))) { \
|
|
BRICK_FAT("%d: pointer '" #ptr "' (%p) is no valid virtual KERNEL address\n", __LINE__, ptr); \
|
|
goto label; \
|
|
} \
|
|
} while (0)
|
|
#else
|
|
#define CHECK_PTR(ptr,label) CHECK_PTR_NULL(ptr,label)
|
|
#endif
|
|
|
|
#define CHECK_ASPECT(a_ptr, o_ptr,label) \
|
|
do { \
|
|
if (BRICK_CHECKING && unlikely((a_ptr)->object != o_ptr)) { \
|
|
BRICK_FAT("%d: aspect pointer '" #a_ptr "' (%p) belongs to object %p, not to " #o_ptr " (%p)\n", __LINE__, a_ptr, (a_ptr)->object, o_ptr); \
|
|
goto label; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define _CHECK(ptr,label) \
|
|
do { \
|
|
if (BRICK_CHECKING && unlikely(!(ptr))) { \
|
|
BRICK_FAT("%d: condition '" #ptr "' is VIOLATED\n", __LINE__); \
|
|
goto label; \
|
|
} \
|
|
} while (0)
|
|
|
|
#endif
|