150 lines
3.9 KiB
C
150 lines
3.9 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 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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* Portions Copyright 2006-2008 Message Systems, Inc. All rights reserved.
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*/
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#ifndef _MISC_H
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#define _MISC_H
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/* #pragma ident "@(#)misc.h 1.6 05/06/08 SMI" */
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#include "config.h"
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#include <sys/types.h>
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#ifndef _WIN32
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#include <sys/time.h>
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#endif
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#ifdef HAVE_THREAD_H
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# include <thread.h>
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#else
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# include "sol_compat.h"
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#endif
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#include <stdarg.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern uint_t umem_abort; /* abort when errors occur */
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extern uint_t umem_output; /* output error messages to stderr */
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extern caddr_t umem_min_stack; /* max stack address for audit log */
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extern caddr_t umem_max_stack; /* min stack address for audit log */
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/*
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* various utility functions
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* These are globally implemented.
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*/
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#undef offsetof
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#define offsetof(s, m) ((size_t)(&(((s *)0)->m)))
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/*
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* a safe printf -- do not use for error messages.
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*/
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void debug_printf(const char *format, ...);
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/*
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* adds a message to the log without writing it out.
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*/
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void log_message(const char *format, ...);
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/*
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* returns the index of the (high/low) bit + 1
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*/
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int highbit(ulong_t) __attribute__ ((pure));
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int lowbit(ulong_t) __attribute__ ((pure));
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/* #pragma no_side_effect(highbit, lowbit) */
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/*
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* Converts a hrtime_t to a timestruc_t
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*/
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void hrt2ts(hrtime_t hrt, timestruc_t *tsp);
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/*
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* tries to print out the symbol and offset of a pointer using umem_error_info
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*/
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int print_sym(void *pointer);
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/*
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* Information about the current error. Can be called multiple times, should
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* be followed eventually with a call to umem_err or umem_err_recoverable.
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*/
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void umem_printf(const char *format, ...);
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void umem_vprintf(const char *format, va_list);
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void umem_printf_warn(void *ignored, const char *format, ...);
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void umem_error_enter(const char *);
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/*
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* prints error message and stack trace, then aborts. Cannot return.
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*/
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void umem_panic(const char *format, ...) __attribute__((noreturn));
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/* #pragma does_not_return(umem_panic) */
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/* #pragma rarely_called(umem_panic) */
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/*
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* like umem_err, but only aborts if umem_abort > 0
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*/
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void umem_err_recoverable(const char *format, ...);
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/*
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* We define our own assertion handling since libc's assert() calls malloc()
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*/
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#ifdef NDEBUG
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#define ASSERT(assertion) (void)0
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#else
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#define ASSERT(assertion) (void)((assertion) || \
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__umem_assert_failed(#assertion, __FILE__, __LINE__))
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#endif
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int __umem_assert_failed(const char *assertion, const char *file, int line) __attribute__ ((noreturn));
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/* #pragma does_not_return(__umem_assert_failed) */
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/* #pragma rarely_called(__umem_assert_failed) */
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/*
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* These have architecture-specific implementations.
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*/
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/*
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* Returns the current function's frame pointer.
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*/
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extern void *getfp(void);
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/*
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* puts a pc-only stack trace of up to pcstack_limit frames into pcstack.
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* Returns the number of stacks written.
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*
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* if check_sighandler != 0, and we are in a signal context, calls
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* umem_err_recoverable.
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*/
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extern int getpcstack(uintptr_t *pcstack, int pcstack_limit,
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int check_sighandler);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _MISC_H */
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