67 lines
1.2 KiB
C
67 lines
1.2 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
/*
|
||
|
|
* Copyright 2016, Cyril Bur, IBM Corp.
|
||
|
|
*
|
||
|
|
* Syscalls can be performed provided the transactions are suspended.
|
||
|
|
* The exec() class of syscall is unique as a new process is loaded.
|
||
|
|
*
|
||
|
|
* It makes little sense for after an exec() call for the previously
|
||
|
|
* suspended transaction to still exist.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define _GNU_SOURCE
|
||
|
|
#include <errno.h>
|
||
|
|
#include <inttypes.h>
|
||
|
|
#include <libgen.h>
|
||
|
|
#include <pthread.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#include "utils.h"
|
||
|
|
#include "tm.h"
|
||
|
|
|
||
|
|
static char *path;
|
||
|
|
|
||
|
|
static int test_exec(void)
|
||
|
|
{
|
||
|
|
SKIP_IF(!have_htm());
|
||
|
|
|
||
|
|
asm __volatile__(
|
||
|
|
"tbegin.;"
|
||
|
|
"blt 1f; "
|
||
|
|
"tsuspend.;"
|
||
|
|
"1: ;"
|
||
|
|
: : : "memory");
|
||
|
|
|
||
|
|
execl(path, "tm-exec", "--child", NULL);
|
||
|
|
|
||
|
|
/* Shouldn't get here */
|
||
|
|
perror("execl() failed");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int after_exec(void)
|
||
|
|
{
|
||
|
|
asm __volatile__(
|
||
|
|
"tbegin.;"
|
||
|
|
"blt 1f;"
|
||
|
|
"tsuspend.;"
|
||
|
|
"1: ;"
|
||
|
|
: : : "memory");
|
||
|
|
|
||
|
|
FAIL_IF(failure_is_nesting());
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, char *argv[])
|
||
|
|
{
|
||
|
|
path = argv[0];
|
||
|
|
|
||
|
|
if (argc > 1 && strcmp(argv[1], "--child") == 0)
|
||
|
|
return after_exec();
|
||
|
|
|
||
|
|
return test_harness(test_exec, "tm_exec");
|
||
|
|
}
|