149 lines
4.2 KiB
C
149 lines
4.2 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
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/* All Rights Reserved */
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#ifndef _SYS_DEBUG_H
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#define _SYS_DEBUG_H
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#include <sys/isa_defs.h>
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#include <sys/types.h>
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#include <sys/note.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* ASSERT(ex) causes a panic or debugger entry if expression ex is not
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* true. ASSERT() is included only for debugging, and is a no-op in
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* production kernels. VERIFY(ex), on the other hand, behaves like
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* ASSERT and is evaluated on both debug and non-debug kernels.
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*/
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#if defined(__STDC__)
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extern int assfail(const char *, const char *, int);
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#define VERIFY(EX) ((void)((EX) || assfail(#EX, __FILE__, __LINE__)))
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#ifndef ASSERT
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#if DEBUG
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#define ASSERT(EX) ((void)((EX) || assfail(#EX, __FILE__, __LINE__)))
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#else
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#define ASSERT(x) ((void)0)
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#endif
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#endif
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#else /* defined(__STDC__) */
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extern int assfail();
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#define VERIFY(EX) ((void)((EX) || assfail("EX", __FILE__, __LINE__)))
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#if DEBUG
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#define ASSERT(EX) ((void)((EX) || assfail("EX", __FILE__, __LINE__)))
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#else
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#define ASSERT(x) ((void)0)
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#endif
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#endif /* defined(__STDC__) */
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/*
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* Assertion variants sensitive to the compilation data model
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*/
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#if defined(_LP64)
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#define ASSERT64(x) ASSERT(x)
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#define ASSERT32(x)
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#else
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#define ASSERT64(x)
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#define ASSERT32(x) ASSERT(x)
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#endif
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/*
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* IMPLY and EQUIV are assertions of the form:
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*
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* if (a) then (b)
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* and
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* if (a) then (b) *AND* if (b) then (a)
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*/
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#if DEBUG
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#define IMPLY(A, B) \
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((void)(((!(A)) || (B)) || \
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assfail("(" #A ") implies (" #B ")", __FILE__, __LINE__)))
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#define EQUIV(A, B) \
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((void)((!!(A) == !!(B)) || \
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assfail("(" #A ") is equivalent to (" #B ")", __FILE__, __LINE__)))
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#else
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#define IMPLY(A, B) ((void)0)
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#define EQUIV(A, B) ((void)0)
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#endif
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/*
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* ASSERT3() behaves like ASSERT() except that it is an explicit conditional,
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* and prints out the values of the left and right hand expressions as part of
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* the panic message to ease debugging. The three variants imply the type
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* of their arguments. ASSERT3S() is for signed data types, ASSERT3U() is
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* for unsigned, and ASSERT3P() is for pointers. The VERIFY3*() macros
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* have the same relationship as above.
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*/
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extern void assfail3(const char *, uintmax_t, const char *, uintmax_t,
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const char *, int);
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#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \
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const TYPE __left = (TYPE)(LEFT); \
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const TYPE __right = (TYPE)(RIGHT); \
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if (!(__left OP __right)) \
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assfail3(#LEFT " " #OP " " #RIGHT, \
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(uintmax_t)__left, #OP, (uintmax_t)__right, \
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__FILE__, __LINE__); \
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_NOTE(CONSTCOND) } while (0)
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#define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t)
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#define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t)
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#define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t)
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#if DEBUG
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#define ASSERT3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t)
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#define ASSERT3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t)
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#define ASSERT3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t)
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#else
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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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#endif
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#ifdef _KERNEL
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extern void abort_sequence_enter(char *);
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extern void debug_enter(char *);
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#endif /* _KERNEL */
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#if defined(DEBUG) && !defined(__sun)
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/* CSTYLED */
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#define STATIC
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#else
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/* CSTYLED */
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#define STATIC static
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_DEBUG_H */
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