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682ce104cd
GCC 7.1 with will warn when we're not checking the snprintf() return code in cases where the buffer could be truncated. This patch either checks the snprintf return code (where applicable), or simply disables the warnings (ztest.c). Reviewed-by: Chunwei Chen <david.chen@osnexus.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Closes #6253
124 lines
3.5 KiB
C
124 lines
3.5 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, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* 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 2007 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#include_next <assert.h>
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#ifndef _LIBSPL_ASSERT_H
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#define _LIBSPL_ASSERT_H
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#include <stdio.h>
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#include <stdlib.h>
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static inline int
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libspl_assert(const char *buf, const char *file, const char *func, int line)
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{
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fprintf(stderr, "%s\n", buf);
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fprintf(stderr, "ASSERT at %s:%d:%s()", file, line, func);
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abort();
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}
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/* printf version of libspl_assert */
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static inline void
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libspl_assertf(const char *file, const char *func, int line, char *format, ...)
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{
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va_list args;
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va_start(args, format);
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vfprintf(stderr, format, args);
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fprintf(stderr, "\n");
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fprintf(stderr, "ASSERT at %s:%d:%s()", file, line, func);
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va_end(args);
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abort();
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}
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#ifdef verify
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#undef verify
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#endif
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#define VERIFY(cond) \
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(void) ((!(cond)) && \
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libspl_assert(#cond, __FILE__, __FUNCTION__, __LINE__))
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#define verify(cond) \
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(void) ((!(cond)) && \
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libspl_assert(#cond, __FILE__, __FUNCTION__, __LINE__))
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#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) \
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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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libspl_assertf(__FILE__, __FUNCTION__, __LINE__, \
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"%s %s %s (0x%llx %s 0x%llx)", #LEFT, #OP, #RIGHT); \
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} 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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#define VERIFY0(x) VERIFY3_IMPL(x, ==, 0, uint64_t)
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#ifdef assert
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#undef assert
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#endif
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/* Compile time assert */
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#define CTASSERT_GLOBAL(x) _CTASSERT(x, __LINE__)
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#define CTASSERT(x) { _CTASSERT(x, __LINE__); }
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#define _CTASSERT(x, y) __CTASSERT(x, y)
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#define __CTASSERT(x, y) \
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typedef char __attribute__((unused)) \
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__compile_time_assertion__ ## y[(x) ? 1 : -1]
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#ifdef NDEBUG
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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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#define ASSERT(x) ((void)0)
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#define assert(x) ((void)0)
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#define ASSERTV(x)
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#define IMPLY(A, B) ((void)0)
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#define EQUIV(A, B) ((void)0)
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#else
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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 ASSERT(x) VERIFY(x)
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#define assert(x) VERIFY(x)
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#define ASSERTV(x) x
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#define IMPLY(A, B) \
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((void)(((!(A)) || (B)) || \
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libspl_assert("(" #A ") implies (" #B ")", \
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__FILE__, __FUNCTION__, __LINE__)))
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#define EQUIV(A, B) \
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((void)((!!(A) == !!(B)) || \
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libspl_assert("(" #A ") is equivalent to (" #B ")", \
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__FILE__, __FUNCTION__, __LINE__)))
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#endif /* NDEBUG */
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#endif /* _LIBSPL_ASSERT_H */
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