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#define _XOPEN_SOURCE 600
#define _BSD_SOURCE
#define _GNU_SOURCE
#include <stdio.h>
#include <sched.h>
#include <stdlib.h>
#include <string.h>
#include "tests/sys_mman.h"
#include <sys/syscall.h>
#include <sys/wait.h>
#include <unistd.h>
#include "valgrind.h"
#define STACK_SIZE 8192
#ifndef CLONE_THREAD
#define CLONE_THREAD 0x00010000 /* Same thread group? */
#endif
static int thread_main(void *arg)
{
char buffer[1024];
memset( buffer, 1, sizeof( buffer ) );
sleep(2); /* ppc64-linux hack */
return memchr( buffer, 1, sizeof( buffer ) ) == NULL;
}
int main(int argc, char **argv)
{
void *stack;
int stackid __attribute__((unused));
pid_t pid;
/* "2*" is a ppc64-linux hack */
if ( ( stack = mmap( NULL, 2* STACK_SIZE, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 ) ) == MAP_FAILED )
{
perror( "mmap" );
exit( 1 );
}
stackid = VALGRIND_STACK_REGISTER( stack, stack + STACK_SIZE );
if ( ( pid = clone( thread_main, stack + STACK_SIZE, CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|SIGCHLD, NULL ) ) == -1 )
{
perror( "clone" );
exit( 1 );
}
sleep( 1 );
exit( 0 );
}
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