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tests/mincore.c
58 строк
1 KB
Dmitry V. Levin
Update copyright headers
30 окт 2023, 11:00
30 окт 2023, 11:00
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/* * Copyright (c) 2016 Dmitry V. Levin <ldv@strace.io> * Copyright (c) 2016-2023 The strace developers. * All rights reserved. * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "tests.h" #include <stdio.h> #include <sys/mman.h> static void print_mincore(const unsigned int pages, void *const addr, const size_t size, unsigned char *const vec) { if (mincore(addr, size, vec)) perror_msg_and_skip("mincore"); printf("mincore(%p, %zu, [", addr, size); for (unsigned int i = 0; i < pages; ++i) { if (i) printf(", "); if (i >= DEFAULT_STRLEN) { printf("..."); break; } printf("%u", vec[i] & 1); } puts("]) = 0"); } static void test_mincore(const unsigned int pages) { const size_t page_size = get_page_size(); const size_t size = pages * page_size; void *const addr = tail_alloc(size); unsigned char *const vec = tail_alloc(pages); mincore(addr, size, NULL); printf("mincore(%p, %zu, NULL) = %s\n", addr, size, sprintrc(-1)); print_mincore(pages, addr, size, vec); if (size) print_mincore(pages, addr, size - page_size + 1, vec); } int main(void) { test_mincore(1); test_mincore(2); test_mincore(DEFAULT_STRLEN); test_mincore(DEFAULT_STRLEN + 1); puts("+++ exited with 0 +++"); return 0; }