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/*
*
* Copyright 2002-2004 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;
import java.io.File;
import java.util.Vector;
import java.util.HashSet;
import java.util.Arrays;
import net.sf.antcontrib.cpptasks.CUtil;
import net.sf.antcontrib.cpptasks.compiler.LinkType;
import net.sf.antcontrib.cpptasks.compiler.Linker;
/**
* Adapter for the GCC linker
*
* @author Adam Murdoch, et.al.
*/
public class GccLinker extends AbstractLdLinker {
private static final String[] discardFiles = new String[0];
private static final String[] objFiles = new String[]{".o", ".a", ".lib",
".dll", ".so", ".sl"};
private static final String[] libtoolObjFiles = new String[]{".fo", ".a",
".lib", ".dll", ".so", ".sl"};
private static String[] linkerOptions = new String[]{"-bundle",
"-dynamiclib", "-nostartfiles", "-nostdlib", "-prebind", "-noprebind", "-s",
"-static", "-shared", "-symbolic", "-Xlinker",
"--export-all-symbols", "-static-libgcc",};
private static String[] darwinLinkerOptions = new String[]{"-arch", "-weak_framework", "-lazy_framework", "-weak_library" };
private static final GccLinker dllLinker = new GccLinker("gcc", objFiles,
discardFiles, "lib", ".so", false, new GccLinker("gcc", objFiles, discardFiles, "lib", ".so", true, null));
private static final GccLinker dllCLangLinker = new GccLinker("clang", objFiles,
discardFiles, "lib", ".so", false, new GccLinker("clang", objFiles, discardFiles, "lib", ".so", true, null));
private static final GccLinker instance = new GccLinker("gcc", objFiles,
discardFiles, "", "", false, null);
private static final GccLinker clangInstance = new GccLinker("clang", objFiles,
discardFiles, "", "", false, null);
private static final GccLinker machBundleLinker = new GccLinker("gcc",
objFiles, discardFiles, "lib", ".bundle", false, null);
private static final GccLinker machCLangBundleLinker = new GccLinker("clang",
objFiles, discardFiles, "lib", ".bundle", false, null);
private static final GccLinker machDllLinker = new GccLinker("gcc",
objFiles, discardFiles, "lib", ".dylib", false, null);
private static final GccLinker machDllCLangLinker = new GccLinker("clang",
objFiles, discardFiles, "lib", ".dylib", false, null);
public static GccLinker getInstance() {
return instance;
}
public static GccLinker getCLangInstance() {
return clangInstance;
}
private final boolean isGCC;
private File[] libDirs;
protected GccLinker(String command, String[] extensions,
String[] ignoredExtensions, String outputPrefix,
String outputSuffix, boolean isLibtool, GccLinker libtoolLinker) {
super(command, "-dumpversion", extensions, ignoredExtensions,
outputPrefix, outputSuffix, isLibtool, libtoolLinker);
isGCC = "gcc".equals(command);
}
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");
}
}
}
/**
* Allows drived linker to decorate linker option. Override by GccLinker 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.startsWith("--sysroot")) {
return arg;
}
if (arg.startsWith("-nostdlib")) {
return 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' :
case 'v' :
break;
default :
boolean known = false;
HashSet allLinkerOptions = new HashSet();
allLinkerOptions.addAll(Arrays.asList(linkerOptions));
if (isDarwin()) {
allLinkerOptions.addAll(Arrays.asList(darwinLinkerOptions));
}
known = allLinkerOptions.contains(arg);
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) {
//
// construct gcc lib path from machine and version
//
StringBuffer buf = new StringBuffer("/lib/gcc-lib/");
buf.append(GccProcessor.getMachine());
buf.append('/');
buf.append(GccProcessor.getVersion());
//
// build default path from gcc and system /lib and /lib/w32api
//
String[] impliedLibPath = new String[]{buf.toString(),
"/lib/w32api", "/lib"};
//
// read gcc specs file for other library paths
//
String[] specs = GccProcessor.getSpecs();
String[][] libpaths = GccProcessor.parseSpecs(specs, "*link:",
new String[]{"%q"});
String[] libpath;
if (libpaths[0].length > 0) {
libpath = new String[libpaths[0].length + 3];
int i = 0;
for (; i < libpaths[0].length; i++) {
libpath[i] = libpaths[0][i];
}
libpath[i++] = buf.toString();
libpath[i++] = "/lib/w32api";
libpath[i++] = "/lib";
} else {
//
// if a failure to find any matches then
// use some default values for lib path entries
libpath = new String[]{"/usr/local/lib/mingw",
"/usr/local/lib", "/usr/lib/w32api", "/usr/lib/mingw",
"/usr/lib", buf.toString(), "/lib/w32api", "/lib"};
}
for (int i = 0; i < libpath.length; i++) {
if (libpath[i].indexOf("mingw") >= 0) {
libpath[i] = null;
}
}
//
// if cygwin then
// we have to prepend location of gcc32
// and .. to start of absolute filenames to
// have something that will exist in the
// windows filesystem
if (GccProcessor.isCygwin()) {
GccProcessor.convertCygwinFilenames(libpath);
}
//
// check that remaining entries are actual directories
//
int count = CUtil.checkDirectoryArray(libpath);
//
// populate return array with remaining entries
//
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(); // uses 'ar', which is 'gcc' agnostic
}
if (type.isPluginModule()) {
if (isDarwin()) {
return isGCC ? machBundleLinker : machCLangBundleLinker;
} else {
return isGCC ? dllLinker : dllCLangLinker;
}
}
if (type.isSharedLibrary()) {
if (isDarwin()) {
return isGCC ? machDllLinker : machDllCLangLinker;
} else {
return isGCC ? dllLinker : dllCLangLinker;
}
}
return isGCC ? instance : clangInstance;
}
}
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