1.1 --- a/src/os/linux/vm/os_linux.cpp Mon Nov 26 17:35:35 2018 +0100
1.2 +++ b/src/os/linux/vm/os_linux.cpp Mon Feb 25 21:38:45 2019 +0000
1.3 @@ -1,5 +1,5 @@
1.4 /*
1.5 - * Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved.
1.6 + * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
1.7 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 *
1.9 * This code is free software; you can redistribute it and/or modify it
1.10 @@ -6337,10 +6337,16 @@
1.11 // or -1 on failure (e.g. can't fork a new process).
1.12 // Unlike system(), this function can be called from signal handler. It
1.13 // doesn't block SIGINT et al.
1.14 -int os::fork_and_exec(char* cmd) {
1.15 +int os::fork_and_exec(char* cmd, bool use_vfork_if_available) {
1.16 const char * argv[4] = {"sh", "-c", cmd, NULL};
1.17
1.18 - pid_t pid = fork();
1.19 + pid_t pid ;
1.20 +
1.21 + if (use_vfork_if_available) {
1.22 + pid = vfork();
1.23 + } else {
1.24 + pid = fork();
1.25 + }
1.26
1.27 if (pid < 0) {
1.28 // fork failed
