/*
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* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2016-2017 The strace developers.
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <stdio.h>
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#include <sys/mman.h>
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static void
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print_mincore(const unsigned int pages, void *const addr,
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const size_t size, unsigned char *const vec)
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{
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unsigned int i;
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if (mincore(addr, size, vec))
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perror_msg_and_skip("mincore");
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printf("mincore(%p, %zu, [", addr, size);
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for (i = 0; i < pages; ++i) {
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if (i)
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printf(", ");
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if (i >= DEFAULT_STRLEN) {
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printf("...");
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break;
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}
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printf("%u", vec[i] & 1);
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}
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puts("]) = 0");
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}
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static void
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test_mincore(const unsigned int pages)
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{
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const size_t page_size = get_page_size();
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const size_t size = pages * page_size;
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void *const addr = tail_alloc(size);
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unsigned char *const vec = tail_alloc(pages);
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mincore(addr, size, NULL);
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printf("mincore(%p, %zu, NULL) = -1 %s (%m)\n",
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addr, size, errno2name());
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print_mincore(pages, addr, size, vec);
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if (size)
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print_mincore(pages, addr, size - page_size + 1, vec);
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}
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int main(void)
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{
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test_mincore(1);
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test_mincore(2);
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test_mincore(DEFAULT_STRLEN);
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test_mincore(DEFAULT_STRLEN + 1);
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puts("+++ exited with 0 +++");
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return 0;
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}
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