188 lines
3.8 KiB
C
188 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (c) 2019 Linaro Limited. All rights reserved.
|
|
* Author: Sumit Garg <sumit.garg@linaro.org>
|
|
*/
|
|
|
|
/*
|
|
* Test rt_tgsigqueueinfo
|
|
*
|
|
* This tests the rt_tgsigqueueinfo() syscall. It sends the signal and data
|
|
* to the single thread specified by the combination of tgid, a thread group
|
|
* ID, and tid, a thread in that thread group.
|
|
*
|
|
* Also this implement 3 tests differing on the basis of signal sender:
|
|
* - Sender and receiver is the same thread.
|
|
* - Sender is parent of the thread.
|
|
* - Sender is different thread.
|
|
*/
|
|
|
|
#define _GNU_SOURCE
|
|
|
|
#include <err.h>
|
|
#include <pthread.h>
|
|
#include "tst_safe_pthread.h"
|
|
#include "tst_test.h"
|
|
#include "lapi/syscalls.h"
|
|
|
|
#ifndef __ANDROID__
|
|
#define SI_SIGVAL si_sigval
|
|
#else
|
|
#define SI_SIGVAL _sigval
|
|
#endif
|
|
|
|
static char sigval_send[] = "rt_tgsigqueueinfo data";
|
|
static volatile int signum_rcv;
|
|
static char *sigval_rcv;
|
|
|
|
static void sigusr1_handler(int signum, siginfo_t *uinfo,
|
|
void *p LTP_ATTRIBUTE_UNUSED)
|
|
{
|
|
signum_rcv = signum;
|
|
sigval_rcv = uinfo->_sifields._rt.SI_SIGVAL.sival_ptr;
|
|
}
|
|
|
|
void *send_rcv_func(void *arg)
|
|
{
|
|
siginfo_t uinfo;
|
|
|
|
signum_rcv = 0;
|
|
sigval_rcv = NULL;
|
|
|
|
uinfo.si_errno = 0;
|
|
uinfo.si_code = SI_QUEUE;
|
|
uinfo._sifields._rt.SI_SIGVAL.sival_ptr = sigval_send;
|
|
|
|
TEST(tst_syscall(__NR_rt_tgsigqueueinfo, getpid(),
|
|
syscall(__NR_gettid), SIGUSR1, &uinfo));
|
|
if (TST_RET)
|
|
tst_brk(TFAIL | TTERRNO, "rt_tgsigqueueinfo failed");
|
|
|
|
while (!signum_rcv)
|
|
usleep(1000);
|
|
|
|
if ((signum_rcv == SIGUSR1) && (sigval_rcv == sigval_send))
|
|
tst_res(TPASS, "Test signal to self succeeded");
|
|
else
|
|
tst_res(TFAIL, "Failed to deliver signal/data to self thread");
|
|
|
|
return arg;
|
|
}
|
|
|
|
static void verify_signal_self(void)
|
|
{
|
|
pthread_t pt;
|
|
|
|
SAFE_PTHREAD_CREATE(&pt, NULL, send_rcv_func, NULL);
|
|
|
|
SAFE_PTHREAD_JOIN(pt, NULL);
|
|
}
|
|
|
|
void *receiver_func(void *arg)
|
|
{
|
|
pid_t *tid = arg;
|
|
|
|
*tid = syscall(__NR_gettid);
|
|
|
|
signum_rcv = 0;
|
|
sigval_rcv = NULL;
|
|
|
|
TST_CHECKPOINT_WAKE(0);
|
|
|
|
while (!signum_rcv)
|
|
usleep(1000);
|
|
|
|
if ((signum_rcv == SIGUSR1) && (sigval_rcv == sigval_send))
|
|
tst_res(TPASS, "Test signal to different thread succeeded");
|
|
else
|
|
tst_res(TFAIL,
|
|
"Failed to deliver signal/data to different thread");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void verify_signal_parent_thread(void)
|
|
{
|
|
pid_t tid = -1;
|
|
pthread_t pt;
|
|
siginfo_t uinfo;
|
|
|
|
SAFE_PTHREAD_CREATE(&pt, NULL, receiver_func, &tid);
|
|
|
|
TST_CHECKPOINT_WAIT(0);
|
|
|
|
uinfo.si_errno = 0;
|
|
uinfo.si_code = SI_QUEUE;
|
|
uinfo._sifields._rt.SI_SIGVAL.sival_ptr = sigval_send;
|
|
|
|
TEST(tst_syscall(__NR_rt_tgsigqueueinfo, getpid(),
|
|
tid, SIGUSR1, &uinfo));
|
|
if (TST_RET)
|
|
tst_brk(TFAIL | TTERRNO, "rt_tgsigqueueinfo failed");
|
|
|
|
SAFE_PTHREAD_JOIN(pt, NULL);
|
|
}
|
|
|
|
void *sender_func(void *arg)
|
|
{
|
|
pid_t *tid = arg;
|
|
siginfo_t uinfo;
|
|
|
|
uinfo.si_errno = 0;
|
|
uinfo.si_code = SI_QUEUE;
|
|
uinfo._sifields._rt.SI_SIGVAL.sival_ptr = sigval_send;
|
|
|
|
TEST(tst_syscall(__NR_rt_tgsigqueueinfo, getpid(),
|
|
*tid, SIGUSR1, &uinfo));
|
|
if (TST_RET)
|
|
tst_brk(TFAIL | TTERRNO, "rt_tgsigqueueinfo failed");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void verify_signal_inter_thread(void)
|
|
{
|
|
pid_t tid = -1;
|
|
pthread_t pt1, pt2;
|
|
|
|
SAFE_PTHREAD_CREATE(&pt1, NULL, receiver_func, &tid);
|
|
|
|
TST_CHECKPOINT_WAIT(0);
|
|
|
|
SAFE_PTHREAD_CREATE(&pt2, NULL, sender_func, &tid);
|
|
|
|
SAFE_PTHREAD_JOIN(pt2, NULL);
|
|
|
|
SAFE_PTHREAD_JOIN(pt1, NULL);
|
|
}
|
|
|
|
static struct tcase {
|
|
void (*tfunc)(void);
|
|
} tcases[] = {
|
|
{&verify_signal_self},
|
|
{&verify_signal_parent_thread},
|
|
{&verify_signal_inter_thread},
|
|
};
|
|
|
|
static void run(unsigned int i)
|
|
{
|
|
tcases[i].tfunc();
|
|
}
|
|
|
|
static void setup(void)
|
|
{
|
|
struct sigaction sigusr1 = {
|
|
.sa_flags = SA_SIGINFO,
|
|
.sa_sigaction = sigusr1_handler,
|
|
};
|
|
|
|
SAFE_SIGACTION(SIGUSR1, &sigusr1, NULL);
|
|
}
|
|
|
|
static struct tst_test test = {
|
|
.tcnt = ARRAY_SIZE(tcases),
|
|
.needs_checkpoints = 1,
|
|
.setup = setup,
|
|
.test = run,
|
|
};
|