62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-only
|
||
|
|
/*
|
||
|
|
* Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
|
||
|
|
* Copyright (c) 2012 Wanlong Gao <gaowanlong@cn.fujitsu.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*\
|
||
|
|
* [Description]
|
||
|
|
*
|
||
|
|
* Check for equality of getpid() from a child and return value of clone(2)
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include "tst_test.h"
|
||
|
|
#include "clone_platform.h"
|
||
|
|
|
||
|
|
static void *child_stack;
|
||
|
|
static int *child_pid;
|
||
|
|
|
||
|
|
static int child_fn(void *arg LTP_ATTRIBUTE_UNUSED)
|
||
|
|
{
|
||
|
|
*child_pid = getpid();
|
||
|
|
exit(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void verify_clone(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
TST_EXP_PID_SILENT(ltp_clone(SIGCHLD, child_fn, NULL, CHILD_STACK_SIZE,
|
||
|
|
child_stack));
|
||
|
|
|
||
|
|
if (!TST_PASS)
|
||
|
|
return;
|
||
|
|
|
||
|
|
tst_reap_children();
|
||
|
|
|
||
|
|
TST_EXP_VAL(TST_RET, *child_pid, "pid(%d)", *child_pid);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void setup(void)
|
||
|
|
{
|
||
|
|
child_pid = SAFE_MMAP(NULL, sizeof(*child_pid), PROT_READ | PROT_WRITE,
|
||
|
|
MAP_SHARED | MAP_ANONYMOUS, -1, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void cleanup(void)
|
||
|
|
{
|
||
|
|
if (child_pid)
|
||
|
|
SAFE_MUNMAP(child_pid, sizeof(*child_pid));
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct tst_test test = {
|
||
|
|
.setup = setup,
|
||
|
|
.test_all = verify_clone,
|
||
|
|
.bufs = (struct tst_buffers []) {
|
||
|
|
{&child_stack, .size = CHILD_STACK_SIZE},
|
||
|
|
{},
|
||
|
|
},
|
||
|
|
.cleanup = cleanup,
|
||
|
|
};
|