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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 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 <mdb/mdb_debug.h> 30 #include <mdb/mdb_err.h> 31 #include <mdb/mdb_io.h> 32 33 #define UMEM_STANDALONE 34 #include <umem_impl.h> 35 36 /* 37 * The standalone umem requires that kmdb provide some error-handling 38 * services. These are them. 39 */ 40 41 /*ARGSUSED*/ 42 int 43 __umem_assert_failed(const char *assertion, const char *file, int line) 44 { 45 #ifdef DEBUG 46 (void) mdb_dassert(assertion, file, line); 47 /*NOTREACHED*/ 48 #endif 49 return (0); 50 } 51 52 void 53 umem_panic(const char *format, ...) 54 { 55 va_list alist; 56 57 va_start(alist, format); 58 vfail(format, alist); 59 va_end(alist); 60 } 61 62 void 63 umem_err_recoverable(const char *format, ...) 64 { 65 va_list alist; 66 67 va_start(alist, format); 68 vwarn(format, alist); 69 va_end(alist); 70 } 71 72 int 73 umem_vsnprintf(char *s, size_t n, const char *format, va_list ap) 74 { 75 return (mdb_iob_vsnprintf(s, n, format, ap)); 76 } 77 78 int 79 umem_snprintf(char *s, size_t n, const char *format, ...) 80 { 81 va_list ap; 82 int rc; 83 84 va_start(ap, format); 85 rc = umem_vsnprintf(s, n, format, ap); 86 va_end(ap); 87 88 return (rc); 89 } 90 91 /* These aren't atomic, but we're not MT, so it doesn't matter */ 92 uint32_t 93 umem_atomic_add_32_nv(uint32_t *target, int32_t delta) 94 { 95 return (*target = *target + delta); 96 } 97 98 void 99 umem_atomic_add_64(uint64_t *target, int64_t delta) 100 { 101 *target = *target + delta; 102 } 103 104 /* 105 * Standalone umem must be manually initialized 106 */ 107 void 108 mdb_umem_startup(caddr_t base, size_t len, size_t pgsize) 109 { 110 umem_startup(base, len, pgsize, base, base + len); 111 } 112 113 /* 114 * The kernel will tell us when there's more memory available for us to use. 115 * This is most common on amd64, which boots with only 4G of VA available, and 116 * later expands to the full 64-bit address space. 117 */ 118 int 119 mdb_umem_add(caddr_t base, size_t len) 120 { 121 return (umem_add(base, len)); 122 } 123