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1ea8c59441
Mostly, try a lot harder to not allocate anything. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rob Norris <rob.norris@klarasystems.com> Closes #16181
116 lines
2.8 KiB
C
116 lines
2.8 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 https://opensource.org/licenses/CDDL-1.0.
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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 2008 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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/*
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* Copyright (c) 2024, Rob Norris <robn@despairlabs.com>
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*/
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#include <assert.h>
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#include <pthread.h>
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#include <sys/backtrace.h>
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#if defined(__linux__)
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#include <errno.h>
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#include <sys/prctl.h>
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#ifdef HAVE_GETTID
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#define libspl_gettid() gettid()
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#else
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#include <sys/syscall.h>
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#define libspl_gettid() ((pid_t)syscall(__NR_gettid))
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#endif
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#define libspl_getprogname() (program_invocation_short_name)
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#define libspl_getthreadname(buf, len) \
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prctl(PR_GET_NAME, (unsigned long)(buf), 0, 0, 0)
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#elif defined(__FreeBSD__) || defined(__APPLE__)
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#if !defined(__APPLE__)
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#include <pthread_np.h>
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#define libspl_gettid() pthread_getthreadid_np()
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#endif
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#define libspl_getprogname() getprogname()
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#define libspl_getthreadname(buf, len) \
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pthread_getname_np(pthread_self(), buf, len);
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#endif
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#if defined(__APPLE__)
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static inline uint64_t
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libspl_gettid(void)
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{
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uint64_t tid;
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if (pthread_threadid_np(NULL, &tid) != 0)
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tid = 0;
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return (tid);
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}
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#endif
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static boolean_t libspl_assert_ok = B_FALSE;
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void
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libspl_set_assert_ok(boolean_t val)
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{
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libspl_assert_ok = val;
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}
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static pthread_mutex_t assert_lock = PTHREAD_MUTEX_INITIALIZER;
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/* printf version of libspl_assert */
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void
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libspl_assertf(const char *file, const char *func, int line,
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const char *format, ...)
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{
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pthread_mutex_lock(&assert_lock);
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va_list args;
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char tname[64];
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libspl_getthreadname(tname, sizeof (tname));
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fprintf(stderr, "ASSERT at %s:%d:%s()\n", file, line, func);
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va_start(args, format);
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vfprintf(stderr, format, args);
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va_end(args);
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fprintf(stderr, "\n"
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" PID: %-8u COMM: %s\n"
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#if defined(__APPLE__)
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" TID: %-8" PRIu64 " NAME: %s\n",
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#else
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" TID: %-8u NAME: %s\n",
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#endif
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getpid(), libspl_getprogname(),
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libspl_gettid(), tname);
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libspl_backtrace(STDERR_FILENO);
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#if !__has_feature(attribute_analyzer_noreturn) && !defined(__COVERITY__)
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if (libspl_assert_ok) {
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pthread_mutex_unlock(&assert_lock);
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return;
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}
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#endif
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abort();
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}
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