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syscall: the signal received during system call processing is not processed.

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Refs: #1176
Fujitsu: POSTK_DEBUG_TEMP_FIX_56
Change-Id: I410160ccbcef3ef49a0e37611a608bc87c97e63b
This commit is contained in:
Tomoki Shirasawa
2018-09-07 14:54:45 +09:00
committed by Masamichi Takagi
parent e4da71010c
commit 5e760db417
10 changed files with 485 additions and 22 deletions
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69
test/issues/1176/C1176T02.c Normal file
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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <signal.h>
#include <errno.h>
#include <sys/wait.h>
int sighandler;
void
sig(int s)
{
sighandler = 1;
}
int
main(int argc, char **argv)
{
pid_t pid;
int st;
if ((pid = fork()) == 0) {
struct sigaction act;
char ch;
int rc;
memset(&act, '\0', sizeof(act));
act.sa_handler = sig;
sigaction(SIGINT, &act, NULL);
rc = read(0, &ch, 1);
if (rc != -1 || errno != EINTR) {
exit(rc == -1 ? 1 : 2);
}
if (sighandler == 0) {
exit(3);
}
exit(0);
}
sleep(1);
kill(pid, SIGINT);
if (waitpid(pid, &st, 0) == -1) {
fprintf(stderr, "*** C1176T02: NG wait %d\n", errno);
exit(1);
}
if (WIFSIGNALED(st)) {
fprintf(stderr, "*** C1176T02: NG termsig %d\n", WTERMSIG(st));
exit(1);
}
if (WEXITSTATUS(st) == 1) {
fprintf(stderr, "*** C1176T02: NG BAD read\n");
exit(1);
}
else if (WEXITSTATUS(st) == 2) {
fprintf(stderr, "*** C1176T02: NG BAD read error\n");
exit(1);
}
else if (WEXITSTATUS(st) == 3) {
fprintf(stderr, "*** C1176T02: NG don't called sighandler\n");
exit(1);
}
else if (WEXITSTATUS(st) != 0) {
fprintf(stderr, "*** C1176T02: NG unknown\n");
exit(1);
}
fprintf(stderr, "*** C1176T02: OK\n");
exit(0);
}