FreeBSD/Linux Kernel Cross Reference
sys/libkern/libkern/OSDebug.h

     /*
      * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
      *
      * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
      * 
      * This file contains Original Code and/or Modifications of Original Code
      * as defined in and that are subject to the Apple Public Source License
      * Version 2.0 (the 'License'). You may not use this file except in
      * compliance with the License. The rights granted to you under the License
     * may not be used to create, or enable the creation or redistribution of,
     * unlawful or unlicensed copies of an Apple operating system, or to
     * circumvent, violate, or enable the circumvention or violation of, any
     * terms of an Apple operating system software license agreement.
     * 
     * Please obtain a copy of the License at
     * http://www.opensource.apple.com/apsl/ and read it before using this file.
     * 
     * The Original Code and all software distributed under the License are
     * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
     * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
     * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
     * Please see the License for the specific language governing rights and
     * limitations under the License.
     * 
     * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
     */
    /*
     * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
     *
     * HISTORY
     *
     */
    
    #ifndef _OS_OSDEBBUG_H
    #define _OS_OSDEBBUG_H
    
    #include <sys/cdefs.h>
    #include <mach/mach_types.h>
    
    __BEGIN_DECLS
    
    extern int log_leaks;
    
    /* Use kernel_debug() to log a backtrace */ 
    extern void trace_backtrace(unsigned int debugid, unsigned int debugid2, unsigned long size, unsigned long data);
    /* Report a message with a 4 entry backtrace - very slow */
    extern void OSReportWithBacktrace(const char *str, ...);
    extern unsigned OSBacktrace(void **bt, unsigned maxAddrs);
    
    /*! @function OSKernelStackRemaining
        @abstract Returns bytes available below the current stack frame.
        @discussion Returns bytes available below the current stack frame. Safe for interrupt or thread context.
        @result Approximate byte count available. */
    
    vm_offset_t OSKernelStackRemaining( void );
    
    __END_DECLS
    
    #define TRACE_MACHLEAKS(a,b,c,d)        \
    do {                                    \
        if (log_leaks)                      \
            trace_backtrace(a,b,c,d);       \
    } while(0)
    
    #endif /* !_OS_OSDEBBUG_H */

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