2 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 # include <sys/types.h>
36 # include "gcc_compat.h"
38 /* Cached sysconf(_SC_PAGESIZE). */
39 size_t get_page_size(void);
41 /* Print message and strerror(errno) to stderr, then exit(1). */
42 void perror_msg_and_fail(const char *, ...)
43 ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
44 /* Print message to stderr, then exit(77). */
45 void error_msg_and_skip(const char *, ...)
46 ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
47 /* Print message and strerror(errno) to stderr, then exit(77). */
48 void perror_msg_and_skip(const char *, ...)
49 ATTRIBUTE_FORMAT((printf, 1, 2)) ATTRIBUTE_NORETURN;
52 * Allocate memory that ends on the page boundary.
53 * Pages allocated by this call are preceeded by an unmapped page
54 * and followed also by an unmapped page.
56 void *tail_alloc(const size_t)
57 ATTRIBUTE_MALLOC ATTRIBUTE_ALLOC_SIZE((1));
58 /* Allocate memory using tail_alloc, then memcpy. */
59 void *tail_memdup(const void *, const size_t)
60 ATTRIBUTE_MALLOC ATTRIBUTE_ALLOC_SIZE((2));
62 /* Close stdin, move stdout to a non-standard descriptor, and print. */
63 void tprintf(const char *, ...)
64 ATTRIBUTE_FORMAT((printf, 1, 2));
66 /* Make a hexdump copy of C string */
67 const char *hexdump_strdup(const char *);
69 # define SKIP_MAIN_UNDEFINED(arg) \
70 int main(void) { error_msg_and_skip("undefined: %s", arg); }