--- /dev/null 2017-08-22 11:47:07.000000000 -0700 +++ new/src/jdk.aot/share/classes/jdk.tools.jaotc/src/jdk/tools/jaotc/Linker.java 2017-08-22 11:47:07.000000000 -0700 @@ -0,0 +1,208 @@ +/* + * Copyright (c) 2017, 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. + */ + +package jdk.tools.jaotc; + +import java.io.BufferedReader; +import java.io.File; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.util.stream.Stream; + +final class Linker { + + private final Options options; + private String objectFileName; + private String libraryFileName; + private String linkerCmd; + + String objFile() { + return objectFileName; + } + + String libFile() { + return libraryFileName; + } + + Linker(Main main) throws Exception { + this.options = main.options; + String name = options.outputName; + objectFileName = name; + libraryFileName = name; + + if (options.linkerpath != null && !(new File(options.linkerpath).exists())) { + throw new InternalError("Invalid linker path: " + options.linkerpath); + } + String linkerPath; + String linkerCheck; + + switch (options.osName) { + case "Linux": + if (name.endsWith(".so")) { + objectFileName = name.substring(0, name.length() - ".so".length()); + } + linkerPath = (options.linkerpath != null) ? options.linkerpath : "ld"; + linkerCmd = linkerPath + " -shared -z noexecstack -o " + libraryFileName + " " + objectFileName; + linkerCheck = linkerPath + " -v"; + break; + case "SunOS": + if (name.endsWith(".so")) { + objectFileName = name.substring(0, name.length() - ".so".length()); + } + objectFileName = objectFileName + ".o"; + linkerPath = (options.linkerpath != null) ? options.linkerpath : "ld"; + linkerCmd = linkerPath + " -shared -o " + libraryFileName + " " + objectFileName; + linkerCheck = linkerPath + " -V"; + break; + case "Mac OS X": + if (name.endsWith(".dylib")) { + objectFileName = name.substring(0, name.length() - ".dylib".length()); + } + objectFileName = objectFileName + ".o"; + linkerPath = (options.linkerpath != null) ? options.linkerpath : "ld"; + linkerCmd = linkerPath + " -dylib -o " + libraryFileName + " " + objectFileName; + linkerCheck = linkerPath + " -v"; + break; + default: + if (options.osName.startsWith("Windows")) { + if (name.endsWith(".dll")) { + objectFileName = name.substring(0, name.length() - ".dll".length()); + } + objectFileName = objectFileName + ".obj"; + linkerPath = (options.linkerpath != null) ? options.linkerpath : getWindowsLinkPath(); + if (linkerPath == null) { + throw new InternalError("Can't locate Microsoft Visual Studio amd64 link.exe"); + } + linkerCmd = linkerPath + " /DLL /OPT:NOREF /NOLOGO /NOENTRY" + " /OUT:" + libraryFileName + " " + objectFileName; + linkerCheck = null; // link.exe presence is verified already + break; + } else { + throw new InternalError("Unsupported platform: " + options.osName); + } + } + + // Check linker presence on platforms by printing its version + if (linkerCheck != null) { + Process p = Runtime.getRuntime().exec(linkerCheck); + final int exitCode = p.waitFor(); + if (exitCode != 0) { + InputStream stderr = p.getErrorStream(); + BufferedReader br = new BufferedReader(new InputStreamReader(stderr)); + Stream lines = br.lines(); + StringBuilder sb = new StringBuilder(); + lines.iterator().forEachRemaining(e -> sb.append(e)); + throw new InternalError(sb.toString()); + } + } + } + + void link() throws Exception { + Process p = Runtime.getRuntime().exec(linkerCmd); + final int exitCode = p.waitFor(); + if (exitCode != 0) { + InputStream stderr = p.getErrorStream(); + if (stderr.read() == -1) { + stderr = p.getInputStream(); + } + BufferedReader br = new BufferedReader(new InputStreamReader(stderr)); + Stream lines = br.lines(); + StringBuilder sb = new StringBuilder(); + lines.iterator().forEachRemaining(e -> sb.append(e)); + throw new InternalError(sb.toString()); + } + File objFile = new File(objectFileName); + if (objFile.exists()) { + if (!objFile.delete()) { + throw new InternalError("Failed to delete " + objectFileName + " file"); + } + } + // Make non-executable for all. + File libFile = new File(libraryFileName); + if (libFile.exists() && !options.osName.startsWith("Windows")) { + if (!libFile.setExecutable(false, false)) { + throw new InternalError("Failed to change attribute for " + libraryFileName + " file"); + } + } + + } + + /** + * Visual Studio supported versions Search Order is: VS2013, VS2015, VS2012 + */ + public enum VSVERSIONS { + VS2013("VS120COMNTOOLS", "C:\\Program Files (x86)\\Microsoft Visual Studio 12.0\\VC\\bin\\amd64\\link.exe"), + VS2015("VS140COMNTOOLS", "C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\bin\\amd64\\link.exe"), + VS2012("VS110COMNTOOLS", "C:\\Program Files (x86)\\Microsoft Visual Studio 11.0\\VC\\bin\\amd64\\link.exe"); + + private final String envvariable; + private final String wkp; + + VSVERSIONS(String envvariable, String wellknownpath) { + this.envvariable = envvariable; + this.wkp = wellknownpath; + } + + String EnvVariable() { + return envvariable; + } + + String WellKnownPath() { + return wkp; + } + } + + /** + * Search for Visual Studio link.exe Search Order is: VS2013, VS2015, VS2012 + */ + private static String getWindowsLinkPath() { + String link = "\\VC\\bin\\amd64\\link.exe"; + + /** + * First try searching the paths pointed to by the VS environment variables. + */ + for (VSVERSIONS vs : VSVERSIONS.values()) { + String vspath = System.getenv(vs.EnvVariable()); + if (vspath != null) { + File commonTools = new File(vspath); + File vsRoot = commonTools.getParentFile().getParentFile(); + File linkPath = new File(vsRoot, link); + if (linkPath.exists()) { + return linkPath.getPath(); + } + } + } + + /** + * If we didn't find via the VS environment variables, try the well known paths + */ + for (VSVERSIONS vs : VSVERSIONS.values()) { + String wkp = vs.WellKnownPath(); + if (new File(wkp).exists()) { + return wkp; + } + } + + return null; + } + +}