mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2025-02-12 02:11:09 +03:00
142 lines
3.6 KiB
C
142 lines
3.6 KiB
C
/*
|
|
* 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 */
|