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