2c3632d14f
Lots of code refactoring, simplification and cleanup. Lots of new unit-tests providing much higher code coverage. All courtesy of rillig at netbsd. Other significant changes: o new read-only variable .SHELL which provides the path of the shell used to run scripts (as defined by the .SHELL target). o variable parsing detects more errors. o new debug option -dl: LINT mode, does the equivalent of := for all variable assignments so that file and line number are reported for variable parse errors.
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/* $NetBSD: make_malloc.c,v 1.18 2020/09/02 06:10:44 rillig Exp $ */
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/*-
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* Copyright (c) 2009 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef MAKE_NATIVE
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: make_malloc.c,v 1.18 2020/09/02 06:10:44 rillig Exp $");
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "make.h"
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#ifndef USE_EMALLOC
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static MAKE_ATTR_DEAD void enomem(void);
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/* die when out of memory. */
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static MAKE_ATTR_DEAD void
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enomem(void)
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{
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(void)fprintf(stderr, "%s: %s.\n", progname, strerror(ENOMEM));
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exit(2);
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}
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/* malloc, but die on error. */
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void *
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bmake_malloc(size_t len)
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{
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void *p;
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if ((p = malloc(len)) == NULL)
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enomem();
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return p;
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}
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/* strdup, but die on error. */
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char *
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bmake_strdup(const char *str)
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{
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size_t len;
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char *p;
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len = strlen(str) + 1;
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if ((p = malloc(len)) == NULL)
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enomem();
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return memcpy(p, str, len);
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}
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/* Allocate a string starting from str with exactly len characters. */
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char *
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bmake_strldup(const char *str, size_t len)
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{
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char *p = bmake_malloc(len + 1);
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memcpy(p, str, len);
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p[len] = '\0';
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return p;
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}
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/* realloc, but die on error. */
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void *
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bmake_realloc(void *ptr, size_t size)
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{
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if ((ptr = realloc(ptr, size)) == NULL)
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enomem();
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return ptr;
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}
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#endif
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/* Allocate a string from start up to but excluding end. */
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char *
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bmake_strsedup(const char *start, const char *end)
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{
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return bmake_strldup(start, (size_t)(end - start));
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}
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