7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
Summary: Created Windows Dll wrapped to handle jdk6 and jdk7 platform requirements, also provided more restictive Dll search orders for Windows system Dlls.
Reviewed-by: acorn, dcubed, ohair, alanb
/*
* Copyright (c) 1998, 2010, 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.
*
*/
#ifndef _JAVASOFT_JVM_MD_H_
#define _JAVASOFT_JVM_MD_H_
/*
* This file is currently collecting system-specific dregs for the
* JNI conversion, which should be sorted out later.
*/
// JDK7 requires VS2010
#if _MSC_VER >= 1600
// JDK7 minimum platform requirement: Windows XP
#if _WIN32_WINNT < 0x0501
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0501
#endif
#endif
#include <windows.h>
#if _MSC_VER <= 1200
// Psapi.h doesn't come with Visual Studio 6; it can be downloaded as Platform
// SDK from Microsoft. Here are the definitions copied from Psapi.h
typedef struct _MODULEINFO {
LPVOID lpBaseOfDll;
DWORD SizeOfImage;
LPVOID EntryPoint;
} MODULEINFO, *LPMODULEINFO;
#else
#include <Psapi.h>
#endif
#include <Tlhelp32.h>
// #include "jni.h"
#define JNI_ONLOAD_SYMBOLS {"_JNI_OnLoad@8", "JNI_OnLoad"}
#define JNI_ONUNLOAD_SYMBOLS {"_JNI_OnUnload@8", "JNI_OnUnload"}
#define JVM_ONLOAD_SYMBOLS {"_JVM_OnLoad@12", "JVM_OnLoad"}
#define AGENT_ONLOAD_SYMBOLS {"_Agent_OnLoad@12", "Agent_OnLoad"}
#define AGENT_ONUNLOAD_SYMBOLS {"_Agent_OnUnload@4", "Agent_OnUnload"}
#define AGENT_ONATTACH_SYMBOLS {"_Agent_OnAttach@12", "Agent_OnAttach"}
#define JNI_LIB_PREFIX ""
#define JNI_LIB_SUFFIX ".dll"
struct dirent {
char d_name[MAX_PATH];
};
typedef struct {
struct dirent dirent;
char *path;
HANDLE handle;
WIN32_FIND_DATA find_data;
} DIR;
#include <stdlib.h>
#define JVM_MAXPATHLEN _MAX_PATH
#define JVM_R_OK 4
#define JVM_W_OK 2
#define JVM_X_OK 1
#define JVM_F_OK 0
#ifdef __cplusplus
extern "C" {
#endif
JNIEXPORT void * JNICALL
JVM_GetThreadInterruptEvent();
#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */
/*
* File I/O
*/
// #include <sys/types.h>
// #include <sys/stat.h>
// #include <fcntl.h>
// #include <errno.h>
/* O Flags */
#define JVM_O_RDONLY O_RDONLY
#define JVM_O_WRONLY O_WRONLY
#define JVM_O_RDWR O_RDWR
#define JVM_O_O_APPEND O_APPEND
#define JVM_O_EXCL O_EXCL
#define JVM_O_CREAT O_CREAT
#define JVM_O_DELETE O_TEMPORARY
/* Signals */
#define JVM_SIGINT SIGINT
#define JVM_SIGTERM SIGTERM
#define SHUTDOWN1_SIGNAL SIGINT /* Shutdown Hooks support. */
#define SHUTDOWN2_SIGNAL SIGTERM
#endif /* !_JAVASOFT_JVM_MD_H_ */