f07e20a381
Refs: #1166 Fujitsu: POSTK_DEBUG_TEMP_FIX_14 Change-Id: Iae0f1145d58ec2c14cecc14409b08a1db3b067b7
92 lines
1.6 KiB
C
92 lines
1.6 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <time.h>
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#include <fcntl.h>
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#include <errno.h>
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int
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main(int argc, char **argv)
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{
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int fd;
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int *p2;
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pid_t pid;
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int st;
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int ok = 0;
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int ng = 0;
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printf("CT1166 START\n");
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fd = open("/dev/fb0", O_RDWR, 0);
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if (fd == -1) {
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printf("CT1166T01 could not open /dev/fb0: %s\n",
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strerror(errno));
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exit(1);
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}
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printf("CT1166T01: OK open(/dev/fb0)\n");
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p2 = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
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if (p2 == (void *)-1) {
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printf("CT1166T02: NG could not mmap: %s\n", strerror(errno));
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ng++;
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exit(1);
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}
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printf("CT1166T02: OK mmap(MAP_PRIVATE)\n");
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ok++;
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close(fd);
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p2[0] = 50;
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printf("CT1166T03: OK store to parent fb0\n");
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ok++;
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if (p2[0] == 50) {
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printf("CT1166T04: OK load from parent fb0\n");
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ok++;
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}
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else {
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printf("CT1166T04: NG load from parent fb0\n");
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ng++;
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}
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fflush(stdout);
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pid = fork();
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if (pid == -1) {
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printf("CT1166T05: NG could not fork: %s\n", strerror(errno));
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ng++;
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exit(1);
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}
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if (pid == 0) {
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printf("CT1166T05: OK fork\n");
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ok++;
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p2[0] = 10;
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printf("CT1166T06: OK store to child fb0\n");
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ok++;
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if (p2[0] == 10) {
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printf("CT1166T07: OK load from child fb0\n");
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ok++;
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}
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else {
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printf("CT1166T07: NG load from child fb0\n");
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ng++;
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}
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exit(0);
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}
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while (waitpid(pid, &st, 0) == -1 && errno == EINTR)
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;
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if (p2[0] == 50) {
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printf("CT1166T08: OK parent fb0 isn't modified\n");
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ok++;
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}
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else {
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printf("CT1166T08: NG private fb0 is modified (%d)\n", p2[0]);
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ng++;
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}
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exit(0);
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}
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