FreeBSD/Linux Kernel Cross Reference
sys/ddb/db_kernel.c

     /*      $NetBSD: db_kernel.c,v 1.4 2020/05/31 23:34:34 rin Exp $        */
     
     /*-
      * Copyright (c) 2009 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Andrew Doran.
      *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: db_kernel.c,v 1.4 2020/05/31 23:34:34 rin Exp $");
    
    #include <sys/param.h>
    #include <sys/kmem.h>
    
    #include <ddb/ddb.h>
    
    /*
     * XXX
     * These routines are *not* intended for a DDB session:
     *
     * - It disturbes on-going debugged kernel datastructures.
     *
     * - DDB can be running in the interrupt context, e.g., when activated from
     *   console. This results in assertion failures in the allocator.
     *
     * Use these only for permanent data storage when initializing DDB.
     */
    
    void *
    db_alloc(size_t sz)
    {
    
            return kmem_alloc(sz, KM_SLEEP);
    }
    
    void *
    db_zalloc(size_t sz)
    {
    
            return kmem_zalloc(sz, KM_SLEEP);
    }
    
    void
    db_free(void *p, size_t sz)
    {
    
            kmem_free(p, sz);
    }

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