168 lines
5.9 KiB
C
168 lines
5.9 KiB
C
/*
|
|
* Copyright (c) 2020 iXsystems, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Available Solaris debug functions. All of the ASSERT() macros will be
|
|
* compiled out when NDEBUG is defined, this is the default behavior for
|
|
* the SPL. To enable assertions use the --enable-debug with configure.
|
|
* The VERIFY() functions are never compiled out and cannot be disabled.
|
|
*
|
|
* PANIC() - Panic the node and print message.
|
|
* ASSERT() - Assert X is true, if not panic.
|
|
* ASSERT3B() - Assert boolean X OP Y is true, if not panic.
|
|
* ASSERT3S() - Assert signed X OP Y is true, if not panic.
|
|
* ASSERT3U() - Assert unsigned X OP Y is true, if not panic.
|
|
* ASSERT3P() - Assert pointer X OP Y is true, if not panic.
|
|
* ASSERT0() - Assert value is zero, if not panic.
|
|
* VERIFY() - Verify X is true, if not panic.
|
|
* VERIFY3B() - Verify boolean X OP Y is true, if not panic.
|
|
* VERIFY3S() - Verify signed X OP Y is true, if not panic.
|
|
* VERIFY3U() - Verify unsigned X OP Y is true, if not panic.
|
|
* VERIFY3P() - Verify pointer X OP Y is true, if not panic.
|
|
* VERIFY0() - Verify value is zero, if not panic.
|
|
*/
|
|
|
|
#ifndef _SPL_DEBUG_H
|
|
#define _SPL_DEBUG_H
|
|
|
|
|
|
/*
|
|
* Common DEBUG functionality.
|
|
*/
|
|
int spl_panic(const char *file, const char *func, int line,
|
|
const char *fmt, ...);
|
|
void spl_dumpstack(void);
|
|
|
|
#ifndef expect
|
|
#define expect(expr, value) (__builtin_expect((expr), (value)))
|
|
#endif
|
|
#define likely(expr) expect((expr) != 0, 1)
|
|
#define unlikely(expr) expect((expr) != 0, 0)
|
|
|
|
/* BEGIN CSTYLED */
|
|
#define PANIC(fmt, a...) \
|
|
spl_panic(__FILE__, __FUNCTION__, __LINE__, fmt, ## a)
|
|
|
|
#define VERIFY(cond) \
|
|
(void) (unlikely(!(cond)) && \
|
|
spl_panic(__FILE__, __FUNCTION__, __LINE__, \
|
|
"%s", "VERIFY(" #cond ") failed\n"))
|
|
|
|
#define VERIFY3B(LEFT, OP, RIGHT) do { \
|
|
boolean_t _verify3_left = (boolean_t)(LEFT); \
|
|
boolean_t _verify3_right = (boolean_t)(RIGHT); \
|
|
if (!(_verify3_left OP _verify3_right)) \
|
|
spl_panic(__FILE__, __FUNCTION__, __LINE__, \
|
|
"VERIFY3(" #LEFT " " #OP " " #RIGHT ") " \
|
|
"failed (%d " #OP " %d)\n", \
|
|
(boolean_t) (_verify3_left), \
|
|
(boolean_t) (_verify3_right)); \
|
|
} while (0)
|
|
|
|
#define VERIFY3S(LEFT, OP, RIGHT) do { \
|
|
int64_t _verify3_left = (int64_t)(LEFT); \
|
|
int64_t _verify3_right = (int64_t)(RIGHT); \
|
|
if (!(_verify3_left OP _verify3_right)) \
|
|
spl_panic(__FILE__, __FUNCTION__, __LINE__, \
|
|
"VERIFY3(" #LEFT " " #OP " " #RIGHT ") " \
|
|
"failed (%lld " #OP " %lld)\n", \
|
|
(long long) (_verify3_left), \
|
|
(long long) (_verify3_right)); \
|
|
} while (0)
|
|
|
|
#define VERIFY3U(LEFT, OP, RIGHT) do { \
|
|
uint64_t _verify3_left = (uint64_t)(LEFT); \
|
|
uint64_t _verify3_right = (uint64_t)(RIGHT); \
|
|
if (!(_verify3_left OP _verify3_right)) \
|
|
spl_panic(__FILE__, __FUNCTION__, __LINE__, \
|
|
"VERIFY3(" #LEFT " " #OP " " #RIGHT ") " \
|
|
"failed (%llu " #OP " %llu)\n", \
|
|
(unsigned long long) (_verify3_left), \
|
|
(unsigned long long) (_verify3_right)); \
|
|
} while (0)
|
|
|
|
#define VERIFY3P(LEFT, OP, RIGHT) do { \
|
|
uintptr_t _verify3_left = (uintptr_t)(LEFT); \
|
|
uintptr_t _verify3_right = (uintptr_t)(RIGHT); \
|
|
if (!(_verify3_left OP _verify3_right)) \
|
|
spl_panic(__FILE__, __FUNCTION__, __LINE__, \
|
|
"VERIFY3(" #LEFT " " #OP " " #RIGHT ") " \
|
|
"failed (%px " #OP " %px)\n", \
|
|
(void *) (_verify3_left), \
|
|
(void *) (_verify3_right)); \
|
|
} while (0)
|
|
|
|
#define VERIFY0(RIGHT) do { \
|
|
int64_t _verify3_left = (int64_t)(0); \
|
|
int64_t _verify3_right = (int64_t)(RIGHT); \
|
|
if (!(_verify3_left == _verify3_right)) \
|
|
spl_panic(__FILE__, __FUNCTION__, __LINE__, \
|
|
"VERIFY3(0 == " #RIGHT ") " \
|
|
"failed (0 == %lld)\n", \
|
|
(long long) (_verify3_right)); \
|
|
} while (0)
|
|
#define CTASSERT_GLOBAL(x) CTASSERT(x)
|
|
|
|
/*
|
|
* Debugging disabled (--disable-debug)
|
|
*/
|
|
#ifdef NDEBUG
|
|
|
|
#define ASSERT(x) ((void)0)
|
|
#define ASSERT3B(x,y,z) ((void)0)
|
|
#define ASSERT3S(x,y,z) ((void)0)
|
|
#define ASSERT3U(x,y,z) ((void)0)
|
|
#define ASSERT3P(x,y,z) ((void)0)
|
|
#define ASSERT0(x) ((void)0)
|
|
#define IMPLY(A, B) ((void)0)
|
|
#define EQUIV(A, B) ((void)0)
|
|
|
|
/*
|
|
* Debugging enabled (--enable-debug)
|
|
*/
|
|
#else
|
|
|
|
#define ASSERT3B VERIFY3B
|
|
#define ASSERT3S VERIFY3S
|
|
#define ASSERT3U VERIFY3U
|
|
#define ASSERT3P VERIFY3P
|
|
#define ASSERT0 VERIFY0
|
|
#define ASSERT VERIFY
|
|
#define IMPLY(A, B) \
|
|
((void)(((!(A)) || (B)) || \
|
|
spl_panic(__FILE__, __FUNCTION__, __LINE__, \
|
|
"(" #A ") implies (" #B ")")))
|
|
#define EQUIV(A, B) \
|
|
((void)((!!(A) == !!(B)) || \
|
|
spl_panic(__FILE__, __FUNCTION__, __LINE__, \
|
|
"(" #A ") is equivalent to (" #B ")")))
|
|
/* END CSTYLED */
|
|
|
|
#endif /* NDEBUG */
|
|
|
|
#endif /* SPL_DEBUG_H */
|