/*
*
* Copyright 2003-2004 The Ant-Contrib project
*
* 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.
*/
package net.sf.antcontrib.cpptasks.gcc.cross;
import java.io.File;
import java.util.Vector;
import net.sf.antcontrib.cpptasks.CCTask;
import net.sf.antcontrib.cpptasks.CUtil;
import net.sf.antcontrib.cpptasks.LinkerParam;
import net.sf.antcontrib.cpptasks.compiler.CaptureStreamHandler;
import net.sf.antcontrib.cpptasks.compiler.CommandLineLinkerConfiguration;
import net.sf.antcontrib.cpptasks.compiler.LinkType;
import net.sf.antcontrib.cpptasks.compiler.Linker;
import net.sf.antcontrib.cpptasks.gcc.AbstractLdLinker;
import net.sf.antcontrib.cpptasks.types.LibrarySet;
import org.apache.tools.ant.BuildException;
/**
* Adapter for the g++ variant of the GCC linker
*
* @author Stephen M. Webb <stephen.webb@bregmasoft.com>
*/
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(String command, String[] extensions,
String[] ignoredExtensions, String outputPrefix,
String outputSuffix, boolean isLibtool, GppLinker libtoolLinker) {
super(command, "-dumpversion", extensions, ignoredExtensions,
outputPrefix, outputSuffix, isLibtool, libtoolLinker);
}
protected void addImpliedArgs(boolean debug, LinkType linkType, Vector args) {
super.addImpliedArgs(debug, linkType, args);
if (getIdentifier().indexOf("mingw") >= 0) {
if (linkType.isSubsystemConsole()) {
args.addElement("-mconsole");
}
if (linkType.isSubsystemGUI()) {
args.addElement("-mwindows");
}
}
if (linkType.isStaticRuntime()) {
String[] cmdin = new String[]{"g++", "-print-file-name=libstdc++.a"};
String[] cmdout = CaptureStreamHandler.run(cmdin);
if (cmdout.length > 0) {
runtimeLibrary = cmdout[0];
} else {
runtimeLibrary = null;
}
} else {
runtimeLibrary = "-lstdc++";
}
}
public String[] addLibrarySets(CCTask task, LibrarySet[] libsets,
Vector preargs, Vector midargs, Vector endargs) {
String[] rs = super.addLibrarySets(task, libsets, preargs, midargs,
endargs);
if (runtimeLibrary != null) {
endargs.addElement(runtimeLibrary);
}
return rs;
}
protected Object clone() throws CloneNotSupportedException {
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
*/
public String decorateLinkerOption(StringBuffer buf, 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 (int i = 0; i < linkerOptions.length; i++) {
if (linkerOptions[i].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.
*
*/
public File[] getLibraryPath() {
if (libDirs == null) {
Vector dirs = new Vector();
// Ask GCC where it will look for its libraries.
String[] args = new String[]{"g++", "-print-search-dirs"};
String[] cmdout = CaptureStreamHandler.run(args);
for (int i = 0; i < cmdout.length; ++i) {
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.
String[] libpath = new String[dirs.size()];
dirs.copyInto(libpath);
int count = CUtil.checkDirectoryArray(libpath);
// Build return array.
libDirs = new File[count];
int index = 0;
for (int i = 0; i < libpath.length; ++i) {
if (libpath[i] != null) {
libDirs[index++] = new File(libpath[i]);
}
}
}
return libDirs;
}
public Linker getLinker(LinkType type) {
if (type.isStaticLibrary()) {
return GccLibrarian.getInstance();
}
if (type.isPluginModule()) {
if (GccProcessor.getMachine().indexOf("darwin") >= 0) {
return machPluginLinker;
} else {
return dllLinker;
}
}
if (type.isSharedLibrary()) {
if (GccProcessor.getMachine().indexOf("darwin") >= 0) {
return machDllLinker;
} else {
return dllLinker;
}
}
return instance;
}
public void link(CCTask task, File outputFile, String[] sourceFiles,
CommandLineLinkerConfiguration config) throws BuildException {
try {
GppLinker clone = (GppLinker) this.clone();
LinkerParam param = config.getParam("target");
if (param != null)
clone.setCommand(param.getValue() + "-" + this.getCommand());
clone.superlink(task, outputFile, sourceFiles, config);
} catch (CloneNotSupportedException e) {
superlink(task, outputFile, sourceFiles, config);
}
}
private void superlink(CCTask task, File outputFile, String[] sourceFiles,
CommandLineLinkerConfiguration config) throws BuildException {
super.link(task, outputFile, sourceFiles, config);
}
}