/*
* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include "precompiled.hpp"
#include "gc/z/zSyscall_windows.hpp"
#include "logging/log.hpp"
#include "runtime/java.hpp"
#include "runtime/os.hpp"
ZSyscall::CreateFileMappingWFn ZSyscall::CreateFileMappingW;
ZSyscall::VirtualAlloc2Fn ZSyscall::VirtualAlloc2;
ZSyscall::VirtualFreeExFn ZSyscall::VirtualFreeEx;
ZSyscall::MapViewOfFile3Fn ZSyscall::MapViewOfFile3;
ZSyscall::UnmapViewOfFile2Fn ZSyscall::UnmapViewOfFile2;
template <typename Fn>
static void lookup_symbol(Fn*& fn, const char* library, const char* symbol) {
char ebuf[1024];
void* const handle = os::dll_load(library, ebuf, sizeof(ebuf));
if (handle == NULL) {
log_error(gc)("Failed to load library: %s", library);
vm_exit_during_initialization("ZGC requires Windows version 1803 or later");
}
fn = reinterpret_cast<Fn*>(os::dll_lookup(handle, symbol));
if (fn == NULL) {
log_error(gc)("Failed to lookup symbol: %s", symbol);
vm_exit_during_initialization("ZGC requires Windows version 1803 or later");
}
}
void ZSyscall::initialize() {
lookup_symbol(CreateFileMappingW, "KernelBase", "CreateFileMappingW");
lookup_symbol(VirtualAlloc2, "KernelBase", "VirtualAlloc2");
lookup_symbol(VirtualFreeEx, "KernelBase", "VirtualFreeEx");
lookup_symbol(MapViewOfFile3, "KernelBase", "MapViewOfFile3");
lookup_symbol(UnmapViewOfFile2, "KernelBase", "UnmapViewOfFile2");
}
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