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