1 /* $NetBSD: make_malloc.h,v 1.10 2020/08/29 16:47:45 rillig Exp $ */ 2 3 /*- 4 * Copyright (c) 2009 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef USE_EMALLOC 30 void *bmake_malloc(size_t); 31 void *bmake_realloc(void *, size_t); 32 char *bmake_strdup(const char *); 33 char *bmake_strldup(const char *, size_t); 34 #else 35 #include <util.h> 36 #define bmake_malloc(x) emalloc(x) 37 #define bmake_realloc(x,y) erealloc(x,y) 38 #define bmake_strdup(x) estrdup(x) 39 #define bmake_strldup(x,y) estrndup(x,y) 40 #endif 41 char *bmake_strsedup(const char *, const char *); 42 43 /* Thin wrapper around free(3) to avoid the extra function call in case 44 * p is NULL, which on x86_64 costs about 12 machine instructions. 45 * Other platforms are similarly affected. 46 * 47 * The case of a NULL pointer happens especially often after Var_Value, 48 * since only environment variables need to be freed, but not others. */ 49 static inline void MAKE_ATTR_UNUSED 50 bmake_free(void *p) 51 { 52 if (p != NULL) 53 free(p); 54 } 55