/* * Copyright (c) 2015-2016 Dmitry V. Levin * Copyright (c) 2015-2018 The strace developers. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "tests.h" #include #include #include #include #include int main(int ac, char **av) { const char *const name = ac > 1 ? av[1] : "mmap"; const intmax_t pagesize = get_page_size(); const unsigned long length1 = pagesize * 6; const unsigned long length2 = pagesize * 3; const unsigned long length3 = pagesize * 2; const int fd = -1; off_t offset; void *addr, *p; #if ULONG_MAX > 4294967295UL offset = 0xcafedeadbeef000ULL & -pagesize; addr = (void *) (uintmax_t) (0xfacefeed000 & -pagesize); #else offset = 0xdeadbeef000ULL & -pagesize; addr = (void *) (unsigned int) (0xfaced000 & -pagesize); #endif const uintmax_t uoffset = sizeof(offset) == sizeof(int) ? (uintmax_t) (unsigned int) offset : (uintmax_t) offset; (void) close(0); (void) close(0); #if XLAT_RAW printf("%s(NULL, 0, %#x, %#x, 0, 0) = -1 EBADF (%m)\n", name, PROT_NONE, MAP_FILE); #elif XLAT_VERBOSE printf("%s(NULL, 0, %#x /* PROT_NONE */, %#x /* MAP_FILE */, 0, 0) " "= -1 EBADF (%m)\n", name, PROT_NONE, MAP_FILE); #else printf("%s(NULL, 0, PROT_NONE, MAP_FILE, 0, 0) = -1 EBADF (%m)\n", name); #endif mmap(NULL, 0, PROT_NONE, MAP_FILE, 0, 0); p = mmap(addr, length1, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, fd, offset); if (MAP_FAILED == p) perror_msg_and_fail("mmap"); #if XLAT_RAW printf("%s(%p, %lu, %#x, " "%#x|%#x, %d, %#jx) = %p\n", name, addr, length1, PROT_READ | PROT_WRITE, MAP_PRIVATE, MAP_ANONYMOUS, fd, uoffset, p); #elif XLAT_VERBOSE printf("%s(%p, %lu, %#x /* PROT_READ|PROT_WRITE */, " "%#x /* MAP_PRIVATE */|%#x /* MAP_ANONYMOUS */, %d, %#jx) " "= %p\n", name, addr, length1, PROT_READ | PROT_WRITE, MAP_PRIVATE, MAP_ANONYMOUS, fd, uoffset, p); #else printf("%s(%p, %lu, PROT_READ|PROT_WRITE, " "MAP_PRIVATE|MAP_ANONYMOUS, %d, %#jx) = %p\n", name, addr, length1, fd, uoffset, p); #endif if (msync(p, length1, MS_SYNC)) perror_msg_and_fail("msync"); #if XLAT_RAW printf("msync(%p, %lu, %#x) = 0\n", p, length1, MS_SYNC); #elif XLAT_VERBOSE printf("msync(%p, %lu, %#x /* MS_SYNC */) = 0\n", p, length1, MS_SYNC); #else printf("msync(%p, %lu, MS_SYNC) = 0\n", p, length1); #endif if (mprotect(p, length1, PROT_NONE)) perror_msg_and_fail("mprotect"); #if XLAT_RAW printf("mprotect(%p, %lu, %#x) = 0\n", p, length1, PROT_NONE); #elif XLAT_VERBOSE printf("mprotect(%p, %lu, %#x /* PROT_NONE */) = 0\n", p, length1, PROT_NONE); #else printf("mprotect(%p, %lu, PROT_NONE) = 0\n", p, length1); #endif addr = mremap(p, length1, length2, 0); if (MAP_FAILED == addr) perror_msg_and_fail("mremap"); printf("mremap(%p, %lu, %lu, 0) = %p\n", p, length1, length2, addr); p = mremap(addr, length2, length3, MREMAP_MAYMOVE | MREMAP_FIXED, addr + length2); if (MAP_FAILED == p) perror_msg_and_fail("mremap"); #if XLAT_RAW printf("mremap(%p, %lu, %lu, %#x, %p) = %p\n", addr, length2, length3, MREMAP_MAYMOVE | MREMAP_FIXED, addr + length2, p); #elif XLAT_VERBOSE printf("mremap(%p, %lu, %lu, %#x /* MREMAP_MAYMOVE|MREMAP_FIXED */" ", %p) = %p\n", addr, length2, length3, MREMAP_MAYMOVE | MREMAP_FIXED, addr + length2, p); #else printf("mremap(%p, %lu, %lu, MREMAP_MAYMOVE|MREMAP_FIXED" ", %p) = %p\n", addr, length2, length3, addr + length2, p); #endif if (munmap(p, length3)) perror_msg_and_fail("munmap"); printf("munmap(%p, %lu) = 0\n", p, length3); printf("mlockall("); #if XLAT_RAW printf("%#x", MCL_FUTURE); #elif XLAT_VERBOSE printf("%#x /* MCL_FUTURE */", MCL_FUTURE); #else printf("MCL_FUTURE"); #endif printf(") = %s\n", sprintrc(mlockall(MCL_FUTURE))); puts("+++ exited with 0 +++"); return 0; }