com.github.maven_nar.cpptasks.gcc.cross.GppLinker Maven / Gradle / Ivy
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This plugin compiles native code and publishes native artifacts in the form of nar files.
/*
* #%L
* Native ARchive plugin for Maven
* %%
* Copyright (C) 2002 - 2014 NAR Maven Plugin developers.
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
package com.github.maven_nar.cpptasks.gcc.cross;
import java.io.File;
import java.util.Vector;
import org.apache.tools.ant.BuildException;
import com.github.maven_nar.cpptasks.CCTask;
import com.github.maven_nar.cpptasks.CUtil;
import com.github.maven_nar.cpptasks.LinkerParam;
import com.github.maven_nar.cpptasks.compiler.CaptureStreamHandler;
import com.github.maven_nar.cpptasks.compiler.CommandLineLinkerConfiguration;
import com.github.maven_nar.cpptasks.compiler.LinkType;
import com.github.maven_nar.cpptasks.compiler.Linker;
import com.github.maven_nar.cpptasks.gcc.AbstractLdLinker;
import com.github.maven_nar.cpptasks.types.LibrarySet;
/**
* Adapter for the g++ variant of the GCC linker
*
* @author Stephen M. Webb
*/
public class GppLinker extends AbstractLdLinker {
protected static final String[] discardFiles = new String[0];
protected static final String[] objFiles = new String[] {
".o", ".a", ".lib", ".dll", ".so", ".sl"
};
private static final GppLinker dllLinker = new GppLinker("gcc", objFiles, discardFiles, "lib", ".so", false,
new GppLinker("gcc", objFiles, discardFiles, "lib", ".so", true, null));
private final static String libPrefix = "libraries: =";
protected static final String[] libtoolObjFiles = new String[] {
".fo", ".a", ".lib", ".dll", ".so", ".sl"
};
private static String[] linkerOptions = new String[] {
"-bundle", "-dylib", "-dynamic", "-dynamiclib", "-nostartfiles", "-nostdlib", "-prebind", "-s", "-static",
"-shared", "-symbolic", "-Xlinker"
};
private static final GppLinker instance = new GppLinker("gcc", objFiles, discardFiles, "", "", false, null);
private static final GppLinker machDllLinker = new GppLinker("gcc", objFiles, discardFiles, "lib", ".dylib", false,
null);
private static final GppLinker machPluginLinker = new GppLinker("gcc", objFiles, discardFiles, "lib", ".bundle",
false, null);
public static GppLinker getInstance() {
return instance;
}
private File[] libDirs;
private String runtimeLibrary;
protected GppLinker(final String command, final String[] extensions, final String[] ignoredExtensions,
final String outputPrefix, final String outputSuffix, final boolean isLibtool, final GppLinker libtoolLinker) {
super(command, "-dumpversion", extensions, ignoredExtensions, outputPrefix, outputSuffix, isLibtool, libtoolLinker);
}
@Override
protected void addImpliedArgs(final CCTask task, final boolean debug, final LinkType linkType,
final Vector args) {
super.addImpliedArgs(task, debug, linkType, args);
if (getIdentifier().contains("mingw")) {
if (linkType.isSubsystemConsole()) {
args.addElement("-mconsole");
}
if (linkType.isSubsystemGUI()) {
args.addElement("-mwindows");
}
}
if (linkType.isStaticRuntime()) {
final String[] cmdin = new String[] {
"g++", "-print-file-name=libstdc++.a"
};
final String[] cmdout = CaptureStreamHandler.run(cmdin);
if (cmdout.length > 0) {
this.runtimeLibrary = cmdout[0];
} else {
this.runtimeLibrary = null;
}
} else {
this.runtimeLibrary = "-lstdc++";
}
}
@Override
public String[] addLibrarySets(final CCTask task, final LibrarySet[] libsets, final Vector preargs,
final Vector midargs, final Vector endargs) {
final String[] rs = super.addLibrarySets(task, libsets, preargs, midargs, endargs);
if (this.runtimeLibrary != null) {
endargs.addElement(this.runtimeLibrary);
}
return rs;
}
@Override
protected Object clone() throws CloneNotSupportedException {
final GppLinker clone = (GppLinker) super.clone();
return clone;
}
/**
* Allows drived linker to decorate linker option. Override by GppLinker to
* prepend a "-Wl," to pass option to through gcc to linker.
*
* @param buf
* buffer that may be used and abused in the decoration process,
* must not be null.
* @param arg
* linker argument
*/
@Override
public String decorateLinkerOption(final StringBuffer buf, final String arg) {
String decoratedArg = arg;
if (arg.length() > 1 && arg.charAt(0) == '-') {
switch (arg.charAt(1)) {
//
// passed automatically by GCC
//
case 'g':
case 'f':
case 'F':
/* Darwin */
case 'm':
case 'O':
case 'W':
case 'l':
case 'L':
case 'u':
break;
default:
boolean known = false;
for (final String linkerOption : linkerOptions) {
if (linkerOption.equals(arg)) {
known = true;
break;
}
}
if (!known) {
buf.setLength(0);
buf.append("-Wl,");
buf.append(arg);
decoratedArg = buf.toString();
}
break;
}
}
return decoratedArg;
}
/**
* Returns library path.
*
*/
@Override
public File[] getLibraryPath() {
if (this.libDirs == null) {
final Vector dirs = new Vector<>();
// Ask GCC where it will look for its libraries.
final String[] args = new String[] {
"g++", "-print-search-dirs"
};
final String[] cmdout = CaptureStreamHandler.run(args);
for (int i = 0; i < cmdout.length; ++i) {
final int prefixIndex = cmdout[i].indexOf(libPrefix);
if (prefixIndex >= 0) {
// Special case DOS-type GCCs like MinGW or Cygwin
int s = prefixIndex + libPrefix.length();
int t = cmdout[i].indexOf(';', s);
while (t > 0) {
dirs.addElement(cmdout[i].substring(s, t));
s = t + 1;
t = cmdout[i].indexOf(';', s);
}
dirs.addElement(cmdout[i].substring(s));
++i;
for (; i < cmdout.length; ++i) {
dirs.addElement(cmdout[i]);
}
}
}
// Eliminate all but actual directories.
final String[] libpath = new String[dirs.size()];
dirs.copyInto(libpath);
final int count = CUtil.checkDirectoryArray(libpath);
// Build return array.
this.libDirs = new File[count];
int index = 0;
for (final String element : libpath) {
if (element != null) {
this.libDirs[index++] = new File(element);
}
}
}
return this.libDirs;
}
@Override
public Linker getLinker(final LinkType type) {
if (type.isStaticLibrary()) {
return GccLibrarian.getInstance();
}
if (type.isPluginModule()) {
if (GccProcessor.getMachine().contains("darwin")) {
return machPluginLinker;
} else {
return dllLinker;
}
}
if (type.isSharedLibrary()) {
if (GccProcessor.getMachine().contains("darwin")) {
return machDllLinker;
} else {
return dllLinker;
}
}
return instance;
}
@Override
public void link(final CCTask task, final File outputFile, final String[] sourceFiles,
final CommandLineLinkerConfiguration config) throws BuildException {
try {
final GppLinker clone = (GppLinker) this.clone();
final LinkerParam param = config.getParam("target");
if (param != null) {
clone.setCommand(param.getValue() + "-" + this.getCommand());
}
clone.superlink(task, outputFile, sourceFiles, config);
} catch (final CloneNotSupportedException e) {
superlink(task, outputFile, sourceFiles, config);
}
}
private void superlink(final CCTask task, final File outputFile, final String[] sourceFiles,
final CommandLineLinkerConfiguration config) throws BuildException {
super.link(task, outputFile, sourceFiles, config);
}
}