1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate * 26*7c478bd9Sstevel@tonic-gate * alloc.c -- memory allocation wrapper functions, for eft.so FMD module 27*7c478bd9Sstevel@tonic-gate * 28*7c478bd9Sstevel@tonic-gate */ 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*7c478bd9Sstevel@tonic-gate 32*7c478bd9Sstevel@tonic-gate #include <stdlib.h> 33*7c478bd9Sstevel@tonic-gate #include <string.h> 34*7c478bd9Sstevel@tonic-gate #include <strings.h> 35*7c478bd9Sstevel@tonic-gate #include <fm/fmd_api.h> 36*7c478bd9Sstevel@tonic-gate 37*7c478bd9Sstevel@tonic-gate #include "alloc.h" 38*7c478bd9Sstevel@tonic-gate #include "out.h" 39*7c478bd9Sstevel@tonic-gate #include "stats.h" 40*7c478bd9Sstevel@tonic-gate 41*7c478bd9Sstevel@tonic-gate extern fmd_hdl_t *Hdl; /* handle from eft.c */ 42*7c478bd9Sstevel@tonic-gate 43*7c478bd9Sstevel@tonic-gate /* room to store size */ 44*7c478bd9Sstevel@tonic-gate #define HDRSIZ sizeof (size_t) 45*7c478bd9Sstevel@tonic-gate 46*7c478bd9Sstevel@tonic-gate static struct stats *Malloctotal; 47*7c478bd9Sstevel@tonic-gate static struct stats *Freetotal; 48*7c478bd9Sstevel@tonic-gate static struct stats *Malloccount; 49*7c478bd9Sstevel@tonic-gate static struct stats *Freecount; 50*7c478bd9Sstevel@tonic-gate 51*7c478bd9Sstevel@tonic-gate void 52*7c478bd9Sstevel@tonic-gate alloc_init(void) 53*7c478bd9Sstevel@tonic-gate { 54*7c478bd9Sstevel@tonic-gate Malloctotal = stats_new_counter("alloc.total", "bytes allocated", 1); 55*7c478bd9Sstevel@tonic-gate Freetotal = stats_new_counter("free.total", "bytes freed", 1); 56*7c478bd9Sstevel@tonic-gate Malloccount = stats_new_counter("alloc.calls", "alloc calls", 1); 57*7c478bd9Sstevel@tonic-gate Freecount = stats_new_counter("free.calls", "free calls", 1); 58*7c478bd9Sstevel@tonic-gate } 59*7c478bd9Sstevel@tonic-gate 60*7c478bd9Sstevel@tonic-gate void 61*7c478bd9Sstevel@tonic-gate alloc_fini(void) 62*7c478bd9Sstevel@tonic-gate { 63*7c478bd9Sstevel@tonic-gate struct stats *mt, *ft, *mc, *fc; 64*7c478bd9Sstevel@tonic-gate 65*7c478bd9Sstevel@tonic-gate mt = Malloctotal; 66*7c478bd9Sstevel@tonic-gate ft = Freetotal; 67*7c478bd9Sstevel@tonic-gate mc = Malloccount; 68*7c478bd9Sstevel@tonic-gate fc = Freecount; 69*7c478bd9Sstevel@tonic-gate 70*7c478bd9Sstevel@tonic-gate Malloctotal = NULL; 71*7c478bd9Sstevel@tonic-gate Freetotal = NULL; 72*7c478bd9Sstevel@tonic-gate Malloccount = NULL; 73*7c478bd9Sstevel@tonic-gate Freecount = NULL; 74*7c478bd9Sstevel@tonic-gate 75*7c478bd9Sstevel@tonic-gate stats_delete(mt); 76*7c478bd9Sstevel@tonic-gate stats_delete(ft); 77*7c478bd9Sstevel@tonic-gate stats_delete(mc); 78*7c478bd9Sstevel@tonic-gate stats_delete(fc); 79*7c478bd9Sstevel@tonic-gate } 80*7c478bd9Sstevel@tonic-gate 81*7c478bd9Sstevel@tonic-gate /* 82*7c478bd9Sstevel@tonic-gate * alloc_malloc -- a malloc() with checks 83*7c478bd9Sstevel@tonic-gate * 84*7c478bd9Sstevel@tonic-gate * this routine is typically called via the MALLOC() macro in alloc.h 85*7c478bd9Sstevel@tonic-gate */ 86*7c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 87*7c478bd9Sstevel@tonic-gate void * 88*7c478bd9Sstevel@tonic-gate alloc_malloc(size_t nbytes, const char *fname, int line) 89*7c478bd9Sstevel@tonic-gate { 90*7c478bd9Sstevel@tonic-gate char *retval; 91*7c478bd9Sstevel@tonic-gate 92*7c478bd9Sstevel@tonic-gate ASSERT(nbytes > 0); 93*7c478bd9Sstevel@tonic-gate 94*7c478bd9Sstevel@tonic-gate retval = fmd_hdl_alloc(Hdl, nbytes + HDRSIZ, FMD_SLEEP); 95*7c478bd9Sstevel@tonic-gate 96*7c478bd9Sstevel@tonic-gate /* retval can't be NULL since fmd_hdl_alloc() sleeps for memory */ 97*7c478bd9Sstevel@tonic-gate 98*7c478bd9Sstevel@tonic-gate bcopy((void *)&nbytes, (void *)retval, sizeof (nbytes)); 99*7c478bd9Sstevel@tonic-gate retval += HDRSIZ; 100*7c478bd9Sstevel@tonic-gate 101*7c478bd9Sstevel@tonic-gate if (Malloctotal) 102*7c478bd9Sstevel@tonic-gate stats_counter_add(Malloctotal, nbytes); 103*7c478bd9Sstevel@tonic-gate 104*7c478bd9Sstevel@tonic-gate if (Malloccount) 105*7c478bd9Sstevel@tonic-gate stats_counter_bump(Malloccount); 106*7c478bd9Sstevel@tonic-gate 107*7c478bd9Sstevel@tonic-gate return ((void *)retval); 108*7c478bd9Sstevel@tonic-gate } 109*7c478bd9Sstevel@tonic-gate 110*7c478bd9Sstevel@tonic-gate /* 111*7c478bd9Sstevel@tonic-gate * alloc_realloc -- a realloc() with checks 112*7c478bd9Sstevel@tonic-gate * 113*7c478bd9Sstevel@tonic-gate * this routine is typically called via the REALLOC() macro in alloc.h 114*7c478bd9Sstevel@tonic-gate */ 115*7c478bd9Sstevel@tonic-gate void * 116*7c478bd9Sstevel@tonic-gate alloc_realloc(void *ptr, size_t nbytes, const char *fname, int line) 117*7c478bd9Sstevel@tonic-gate { 118*7c478bd9Sstevel@tonic-gate void *retval = alloc_malloc(nbytes, fname, line); 119*7c478bd9Sstevel@tonic-gate 120*7c478bd9Sstevel@tonic-gate if (ptr != NULL) { 121*7c478bd9Sstevel@tonic-gate size_t osize; 122*7c478bd9Sstevel@tonic-gate 123*7c478bd9Sstevel@tonic-gate bcopy((void *)((char *)ptr - HDRSIZ), (void *)&osize, 124*7c478bd9Sstevel@tonic-gate sizeof (osize)); 125*7c478bd9Sstevel@tonic-gate /* now we have the new memory, copy in the old contents */ 126*7c478bd9Sstevel@tonic-gate bcopy(ptr, retval, (osize < nbytes) ? osize : nbytes); 127*7c478bd9Sstevel@tonic-gate 128*7c478bd9Sstevel@tonic-gate /* don't need the old memory anymore */ 129*7c478bd9Sstevel@tonic-gate alloc_free((char *)ptr, fname, line); 130*7c478bd9Sstevel@tonic-gate } 131*7c478bd9Sstevel@tonic-gate 132*7c478bd9Sstevel@tonic-gate return (retval); 133*7c478bd9Sstevel@tonic-gate } 134*7c478bd9Sstevel@tonic-gate 135*7c478bd9Sstevel@tonic-gate /* 136*7c478bd9Sstevel@tonic-gate * alloc_strdup -- a strdup() with checks 137*7c478bd9Sstevel@tonic-gate * 138*7c478bd9Sstevel@tonic-gate * this routine is typically called via the STRDUP() macro in alloc.h 139*7c478bd9Sstevel@tonic-gate */ 140*7c478bd9Sstevel@tonic-gate char * 141*7c478bd9Sstevel@tonic-gate alloc_strdup(const char *ptr, const char *fname, int line) 142*7c478bd9Sstevel@tonic-gate { 143*7c478bd9Sstevel@tonic-gate char *retval = alloc_malloc(strlen(ptr) + 1, fname, line); 144*7c478bd9Sstevel@tonic-gate 145*7c478bd9Sstevel@tonic-gate (void) strcpy(retval, ptr); 146*7c478bd9Sstevel@tonic-gate 147*7c478bd9Sstevel@tonic-gate return (retval); 148*7c478bd9Sstevel@tonic-gate } 149*7c478bd9Sstevel@tonic-gate 150*7c478bd9Sstevel@tonic-gate /* 151*7c478bd9Sstevel@tonic-gate * alloc_free -- a free() with checks 152*7c478bd9Sstevel@tonic-gate * 153*7c478bd9Sstevel@tonic-gate * this routine is typically called via the FREE() macro in alloc.h 154*7c478bd9Sstevel@tonic-gate */ 155*7c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 156*7c478bd9Sstevel@tonic-gate void 157*7c478bd9Sstevel@tonic-gate alloc_free(void *ptr, const char *fname, int line) 158*7c478bd9Sstevel@tonic-gate { 159*7c478bd9Sstevel@tonic-gate size_t osize; 160*7c478bd9Sstevel@tonic-gate 161*7c478bd9Sstevel@tonic-gate ASSERT(ptr != NULL); 162*7c478bd9Sstevel@tonic-gate 163*7c478bd9Sstevel@tonic-gate bcopy((void *)((char *)ptr - HDRSIZ), (void *)&osize, sizeof (osize)); 164*7c478bd9Sstevel@tonic-gate 165*7c478bd9Sstevel@tonic-gate /* nothing to check in this version */ 166*7c478bd9Sstevel@tonic-gate 167*7c478bd9Sstevel@tonic-gate fmd_hdl_free(Hdl, (char *)ptr - HDRSIZ, osize + HDRSIZ); 168*7c478bd9Sstevel@tonic-gate 169*7c478bd9Sstevel@tonic-gate if (Freetotal) 170*7c478bd9Sstevel@tonic-gate stats_counter_add(Freetotal, osize); 171*7c478bd9Sstevel@tonic-gate 172*7c478bd9Sstevel@tonic-gate if (Freecount) 173*7c478bd9Sstevel@tonic-gate stats_counter_bump(Freecount); 174*7c478bd9Sstevel@tonic-gate } 175