149 lines
5.2 KiB
C
149 lines
5.2 KiB
C
/*****************************************************************************\
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* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
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* Copyright (C) 2007 The Regents of the University of California.
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* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
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* UCRL-CODE-235197
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*
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* This file is part of the SPL, Solaris Porting Layer.
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* For details, see <http://zfsonlinux.org/>.
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*
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* The SPL is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* The SPL is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the SPL. If not, see <http://www.gnu.org/licenses/>.
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\*****************************************************************************/
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/*
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* Available Solaris debug functions. All of the ASSERT() macros will be
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* compiled out when NDEBUG is defined, this is the default behavior for
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* the SPL. To enable assertions use the --enable-debug with configure.
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* The VERIFY() functions are never compiled out and cannot be disabled.
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*
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* PANIC() - Panic the node and print message.
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* ASSERT() - Assert X is true, if not panic.
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* ASSERTF() - Assert X is true, if not panic and print message.
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* ASSERTV() - Wraps a variable declaration which is only used by ASSERT().
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* ASSERT3S() - Assert signed X OP Y is true, if not panic.
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* ASSERT3U() - Assert unsigned X OP Y is true, if not panic.
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* ASSERT3P() - Assert pointer X OP Y is true, if not panic.
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* ASSERT0() - Assert value is zero, if not panic.
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* VERIFY() - Verify X is true, if not panic.
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* VERIFY3S() - Verify signed X OP Y is true, if not panic.
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* VERIFY3U() - Verify unsigned X OP Y is true, if not panic.
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* VERIFY3P() - Verify pointer X OP Y is true, if not panic.
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* VERIFY0() - Verify value is zero, if not panic.
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*/
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#ifndef _SPL_DEBUG_H
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#define _SPL_DEBUG_H
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#include <spl-debug.h>
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#ifdef NDEBUG /* Debugging Disabled */
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/* Define SPL_DEBUG_STR to make clear which ASSERT definitions are used */
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#define SPL_DEBUG_STR ""
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#define PANIC(fmt, a...) \
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do { \
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printk(KERN_EMERG fmt, ## a); \
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spl_debug_bug(__FILE__, __FUNCTION__, __LINE__, 0); \
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} while (0)
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#define __ASSERT(x) ((void)0)
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#define ASSERT(x) ((void)0)
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#define ASSERTF(x, y, z...) ((void)0)
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#define ASSERTV(x)
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#define VERIFY(cond) \
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do { \
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if (unlikely(!(cond))) \
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PANIC("VERIFY(" #cond ") failed\n"); \
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} while (0)
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#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE, FMT, CAST) \
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do { \
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if (!((TYPE)(LEFT) OP (TYPE)(RIGHT))) \
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PANIC("VERIFY3(" #LEFT " " #OP " " #RIGHT ") " \
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"failed (" FMT " " #OP " " FMT ")\n", \
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CAST (LEFT), CAST (RIGHT)); \
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} while (0)
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#define VERIFY3S(x,y,z) VERIFY3_IMPL(x, y, z, int64_t, "%lld", (long long))
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#define VERIFY3U(x,y,z) VERIFY3_IMPL(x, y, z, uint64_t, "%llu", \
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(unsigned long long))
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#define VERIFY3P(x,y,z) VERIFY3_IMPL(x, y, z, uintptr_t, "%p", (void *))
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#define VERIFY0(x) VERIFY3_IMPL(0, ==, x, int64_t, "%lld", (long long))
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#define ASSERT3S(x,y,z) ((void)0)
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#define ASSERT3U(x,y,z) ((void)0)
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#define ASSERT3P(x,y,z) ((void)0)
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#define ASSERT0(x) ((void)0)
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#else /* Debugging Enabled */
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/* Define SPL_DEBUG_STR to make clear which ASSERT definitions are used */
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#define SPL_DEBUG_STR " (DEBUG mode)"
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#define PANIC(fmt, a...) \
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do { \
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spl_debug_msg(NULL, 0, 0, \
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__FILE__, __FUNCTION__, __LINE__, fmt, ## a); \
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spl_debug_bug(__FILE__, __FUNCTION__, __LINE__, 0); \
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} while (0)
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/* ASSERTION that is safe to use within the debug system */
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#define __ASSERT(cond) \
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do { \
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if (unlikely(!(cond))) { \
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printk(KERN_EMERG "ASSERTION(" #cond ") failed\n"); \
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BUG(); \
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} \
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} while (0)
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/* ASSERTION that will debug log used outside the debug sysytem */
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#define ASSERT(cond) \
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do { \
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if (unlikely(!(cond))) \
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PANIC("ASSERTION(" #cond ") failed\n"); \
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} while (0)
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#define ASSERTF(cond, fmt, a...) \
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do { \
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if (unlikely(!(cond))) \
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PANIC("ASSERTION(" #cond ") failed: " fmt, ## a); \
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} while (0)
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#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE, FMT, CAST) \
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do { \
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if (!((TYPE)(LEFT) OP (TYPE)(RIGHT))) \
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PANIC("VERIFY3(" #LEFT " " #OP " " #RIGHT ") " \
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"failed (" FMT " " #OP " " FMT ")\n", \
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CAST (LEFT), CAST (RIGHT)); \
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} while (0)
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#define VERIFY3S(x,y,z) VERIFY3_IMPL(x, y, z, int64_t, "%lld", (long long))
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#define VERIFY3U(x,y,z) VERIFY3_IMPL(x, y, z, uint64_t, "%llu", \
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(unsigned long long))
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#define VERIFY3P(x,y,z) VERIFY3_IMPL(x, y, z, uintptr_t, "%p", (void *))
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#define VERIFY0(x) VERIFY3_IMPL(0, ==, x, int64_t, "%lld", (long long))
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#define ASSERT3S(x,y,z) VERIFY3S(x, y, z)
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#define ASSERT3U(x,y,z) VERIFY3U(x, y, z)
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#define ASSERT3P(x,y,z) VERIFY3P(x, y, z)
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#define ASSERT0(x) VERIFY0(x)
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#define ASSERTV(x) x
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#define VERIFY(x) ASSERT(x)
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#endif /* NDEBUG */
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#endif /* SPL_DEBUG_H */
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