mirror_zfs/lib/libspl/include/assert.h
Paul Zuchowski 48be45cd2d Implement -A (ignore ASSERTs) for zdb
The command line switch -A (ignore ASSERTs) has always been available
in zdb but was never connected up to the correct global variable.

There are times when you need zdb to ignore asserts and keep dumping
out whatever information it can get despite the ASSERT(s) failing.
It was always intended to be part of zdb but was incomplete.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Zuchowski <pzuchowski@datto.com>
Closes #9610
2020-01-22 13:49:04 -08:00

172 lines
4.8 KiB
C

/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include_next <assert.h>
#ifndef _LIBSPL_ASSERT_H
#define _LIBSPL_ASSERT_H
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#ifndef _KERNEL
int aok;
#endif
static inline int
libspl_assert(const char *buf, const char *file, const char *func, int line)
{
fprintf(stderr, "%s\n", buf);
fprintf(stderr, "ASSERT at %s:%d:%s()", file, line, func);
if (aok) {
return (0);
}
abort();
}
/* printf version of libspl_assert */
static inline void
libspl_assertf(const char *file, const char *func, int line, char *format, ...)
{
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
fprintf(stderr, "\n");
fprintf(stderr, "ASSERT at %s:%d:%s()", file, line, func);
va_end(args);
if (aok) {
return;
}
abort();
}
#ifdef verify
#undef verify
#endif
#define VERIFY(cond) \
(void) ((!(cond)) && \
libspl_assert(#cond, __FILE__, __FUNCTION__, __LINE__))
#define verify(cond) \
(void) ((!(cond)) && \
libspl_assert(#cond, __FILE__, __FUNCTION__, __LINE__))
#define VERIFY3B(LEFT, OP, RIGHT) \
do { \
const boolean_t __left = (boolean_t)(LEFT); \
const boolean_t __right = (boolean_t)(RIGHT); \
if (!(__left OP __right)) \
libspl_assertf(__FILE__, __FUNCTION__, __LINE__, \
"%s %s %s (0x%llx %s 0x%llx)", #LEFT, #OP, #RIGHT, \
(u_longlong_t)__left, #OP, (u_longlong_t)__right); \
} while (0)
#define VERIFY3S(LEFT, OP, RIGHT) \
do { \
const int64_t __left = (int64_t)(LEFT); \
const int64_t __right = (int64_t)(RIGHT); \
if (!(__left OP __right)) \
libspl_assertf(__FILE__, __FUNCTION__, __LINE__, \
"%s %s %s (0x%llx %s 0x%llx)", #LEFT, #OP, #RIGHT, \
(u_longlong_t)__left, #OP, (u_longlong_t)__right); \
} while (0)
#define VERIFY3U(LEFT, OP, RIGHT) \
do { \
const uint64_t __left = (uint64_t)(LEFT); \
const uint64_t __right = (uint64_t)(RIGHT); \
if (!(__left OP __right)) \
libspl_assertf(__FILE__, __FUNCTION__, __LINE__, \
"%s %s %s (0x%llx %s 0x%llx)", #LEFT, #OP, #RIGHT, \
(u_longlong_t)__left, #OP, (u_longlong_t)__right); \
} while (0)
#define VERIFY3P(LEFT, OP, RIGHT) \
do { \
const uintptr_t __left = (uintptr_t)(LEFT); \
const uintptr_t __right = (uintptr_t)(RIGHT); \
if (!(__left OP __right)) \
libspl_assertf(__FILE__, __FUNCTION__, __LINE__, \
"%s %s %s (0x%llx %s 0x%llx)", #LEFT, #OP, #RIGHT, \
(u_longlong_t)__left, #OP, (u_longlong_t)__right); \
} while (0)
#define VERIFY0(LEFT) \
do { \
const uint64_t __left = (uint64_t)(LEFT); \
if (!(__left == 0)) \
libspl_assertf(__FILE__, __FUNCTION__, __LINE__, \
"%s == 0 (0x%llx == 0)", #LEFT, \
(u_longlong_t)__left); \
} while (0)
#ifdef assert
#undef assert
#endif
/* Compile time assert */
#define CTASSERT_GLOBAL(x) _CTASSERT(x, __LINE__)
#define CTASSERT(x) { _CTASSERT(x, __LINE__); }
#define _CTASSERT(x, y) __CTASSERT(x, y)
#define __CTASSERT(x, y) \
typedef char __attribute__((unused)) \
__compile_time_assertion__ ## y[(x) ? 1 : -1]
#ifdef NDEBUG
#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 ASSERT(x) ((void)0)
#define assert(x) ((void)0)
#define ASSERTV(x)
#define IMPLY(A, B) ((void)0)
#define EQUIV(A, B) ((void)0)
#else
#define ASSERT3B VERIFY3B
#define ASSERT3S VERIFY3S
#define ASSERT3U VERIFY3U
#define ASSERT3P VERIFY3P
#define ASSERT0 VERIFY0
#define ASSERT VERIFY
#define assert VERIFY
#define ASSERTV(x) x
#define IMPLY(A, B) \
((void)(((!(A)) || (B)) || \
libspl_assert("(" #A ") implies (" #B ")", \
__FILE__, __FUNCTION__, __LINE__)))
#define EQUIV(A, B) \
((void)((!!(A) == !!(B)) || \
libspl_assert("(" #A ") is equivalent to (" #B ")", \
__FILE__, __FUNCTION__, __LINE__)))
#endif /* NDEBUG */
#endif /* _LIBSPL_ASSERT_H */