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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28 
     29 #include <ctf_impl.h>
     30 #include <sys/kobj.h>
     31 #include <sys/kobj_impl.h>
     32 
     33 /*
     34  * This module is used both during the normal operation of the kernel (i.e.
     35  * after kmem has been initialized) and during boot (before unix`_start has
     36  * been called).  kobj_alloc is able to tell the difference between the two
     37  * cases, and as such must be used instead of kmem_alloc.
     38  */
     39 
     40 void *
     41 ctf_data_alloc(size_t size)
     42 {
     43 	void *buf = kobj_alloc(size, KM_NOWAIT|KM_SCRATCH);
     44 
     45 	if (buf == NULL)
     46 		return (MAP_FAILED);
     47 
     48 	return (buf);
     49 }
     50 
     51 void
     52 ctf_data_free(void *buf, size_t size)
     53 {
     54 	kobj_free(buf, size);
     55 }
     56 
     57 /*ARGSUSED*/
     58 void
     59 ctf_data_protect(void *buf, size_t size)
     60 {
     61 	/* we don't support this operation in the kernel */
     62 }
     63 
     64 void *
     65 ctf_alloc(size_t size)
     66 {
     67 	return (kobj_alloc(size, KM_NOWAIT|KM_TMP));
     68 }
     69 
     70 /*ARGSUSED*/
     71 void
     72 ctf_free(void *buf, size_t size)
     73 {
     74 	kobj_free(buf, size);
     75 }
     76 
     77 /*ARGSUSED*/
     78 const char *
     79 ctf_strerror(int err)
     80 {
     81 	return (NULL); /* we don't support this operation in the kernel */
     82 }
     83 
     84 /*PRINTFLIKE1*/
     85 void
     86 ctf_dprintf(const char *format, ...)
     87 {
     88 	if (_libctf_debug) {
     89 		va_list alist;
     90 
     91 		va_start(alist, format);
     92 		(void) printf("ctf DEBUG: ");
     93 		(void) vprintf(format, alist);
     94 		va_end(alist);
     95 	}
     96 }
     97