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db_kernel.c revision 1.3 
      1 /*	$NetBSD: db_kernel.c,v 1.3 2020/05/31 09:42:46 rin Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2009 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Andrew Doran.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: db_kernel.c,v 1.3 2020/05/31 09:42:46 rin Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/kmem.h>
     37 
     38 #include <ddb/ddb.h>
     39 
     40 /*
     41  * XXX
     42  * DDB can be running in the interrupt context, e.g., when activated from
     43  * console. Therefore, we use kmem_intr_alloc(9) and friends here to avoid
     44  * assertion failure.
     45  */
     46 
     47 void *
     48 db_alloc(size_t sz)
     49 {
     50 
     51 	return kmem_intr_alloc(sz, KM_NOSLEEP);
     52 }
     53 
     54 void *
     55 db_zalloc(size_t sz)
     56 {
     57 
     58 	return kmem_intr_zalloc(sz, KM_NOSLEEP);
     59 }
     60 
     61 void
     62 db_free(void *p, size_t sz)
     63 {
     64 
     65 	kmem_intr_free(p, sz);
     66 }
     67