5d6715078f
Change-Id: I83248c1162e28c3c24ca5f6b0933e1a8ca434d6b Fujitsu: POSTK_DEBUG_TEMP_FIX_37 Refs: #1351
75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/mman.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sys/wait.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <inttypes.h>
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#define MAP_HUGE_SHIFT 26
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#define MADV_SHOW_ATTR 201 /* for TEST */
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#define RANGE_NUM 3
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#define PAGE_NUM 2
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int main(int argc, char **argv)
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{
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void *mems[RANGE_NUM];
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int ret = 0;
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int i, rc, fd;
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int fds[RANGE_NUM];
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int pgnum;
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size_t pgsize, map_size, def_pgsize = getpagesize();
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if ((fd = open("TestFile", O_RDWR | O_CREAT, 0666)) == -1) {
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perror("open");
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return -1;
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}
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pgsize = getpagesize();
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map_size = pgsize * PAGE_NUM;
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for (i = 0; i < RANGE_NUM; i++) {
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mems[i] = mmap(0, map_size, PROT_READ | PROT_WRITE,
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MAP_SHARED, fd, 0);
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}
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for (i = 0; i < RANGE_NUM; i++) {
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if (i > 0) {
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if (mems[i] != mems[i - 1] + map_size) {
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printf("maps is not continuous\n");
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ret = -1;
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goto out;
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}
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}
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}
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printf("** mmap continuous areas: Done\n");
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rc = madvise(mems[0], map_size * RANGE_NUM, MADV_DONTDUMP);
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if (rc != 0) {
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perror("madvise MADV_DONTDUMP");
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ret = -1;
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goto out;
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}
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printf("** madvise MADV_DONTDUMP: Done\n");
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rc = madvise(mems[0], map_size * RANGE_NUM, MADV_SHOW_ATTR);
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if (rc != 0) {
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perror("madvise MAD_SHOW_ATTR");
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ret = -1;
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goto out;
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}
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printf("** madvise MADV_SHOW_ATTR: Done\n");
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munmap(mems[0], map_size * RANGE_NUM);
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out:
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close(fd);
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return ret;
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}
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