e4da71010c
Fujitsu: POSTK_TEMP_FIX_66 Refs: #1009 Change-Id: Ic0f04ac6b7f6c6bb01b55fb389bf9befd56b1dd9
108 lines
1.8 KiB
C
108 lines
1.8 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <signal.h>
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#include <asm/prctl.h>
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#include <sys/prctl.h>
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int arch_prctl(int code, unsigned long *addr);
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void
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sigusr(int sig)
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{
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if (sig == SIGUSR1) {
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printf("SIGUSR1\n");
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}
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else if (sig == SIGUSR2) {
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printf("SIGUSR2\n");
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}
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else {
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printf("other sig\n");
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}
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fflush(stdout);
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}
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int
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main(int argc, char **argv)
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{
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struct sigaction act;
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pid_t pid1 = 0;
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pid_t pid2 = 0;
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pid_t parent;
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int pfd[2];
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char ch;
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int rc;
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unsigned long val;
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memset(&act, '\0', sizeof(act));
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act.sa_handler = sigusr;
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act.sa_flags = SA_RESTART;
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sigaction(SIGUSR1, &act, NULL);
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sigaction(SIGUSR2, &act, NULL);
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pipe(pfd);
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parent = getpid();
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val = 1;
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if (arch_prctl(999, (unsigned long *)val) == -1) {
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fprintf(stderr, "C1009T01 WARN: no mckernel patch detected.\n");
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exit(1);
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}
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if ((pid1 = fork())) {
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pid2 = fork();
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}
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if (!pid1 || !pid2) {
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int sig;
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close(pfd[0]);
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if (pid1)
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sig = SIGUSR2;
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else
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sig = SIGUSR1;
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sleep(1);
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kill(parent, sig);
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if (pid1) {
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sleep(2);
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ch = 'B';
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}
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else {
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sleep(1);
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ch = 'A';
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}
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write(pfd[1], &ch, 1);
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close(pfd[1]);
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exit(0);
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}
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rc = read(pfd[0], &ch, 1);
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if (rc != 1) {
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printf("C1009T01 NG: read error rc=%d errno=%d\n", rc, errno);
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exit(1);
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}
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if (ch != 'A') {
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printf("C1009T01 NG: read BAD DATA ch=%c\n", ch);
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exit(1);
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}
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val = 0;
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arch_prctl(999, (unsigned long *)val);
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printf("read %c OK\n", ch);
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rc = read(pfd[0], &ch, 1);
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if (rc != 1) {
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printf("C1009T01 NG: read error rc=%d errno=%d\n", rc, errno);
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exit(1);
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}
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if (ch != 'B') {
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printf("C1009T01 NG: read BAD DATA ch=%c\n", ch);
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exit(1);
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}
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printf("read %c OK\n", ch);
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printf("*** C1009T01: OK\n");
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exit(0);
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}
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