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ea3ce762 | 1 | /* |
5de7ce63 | 2 | * This file is part of the sigrok-androidutils project. |
ea3ce762 MC |
3 | * |
4 | * Copyright (C) 2014 Marcus Comstedt <marcus@mc.pp.se> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | package org.sigrok.androidutils.ant; | |
21 | ||
22 | import java.io.File; | |
23 | import java.io.IOException; | |
24 | import java.io.FileInputStream; | |
25 | import java.io.FileOutputStream; | |
26 | import java.io.InputStream; | |
27 | import java.io.OutputStream; | |
28 | import java.util.ArrayList; | |
29 | import java.util.Arrays; | |
30 | import java.util.Collections; | |
31 | import java.util.HashMap; | |
32 | import java.util.HashSet; | |
33 | import java.util.LinkedList; | |
34 | import java.util.Queue; | |
35 | import java.util.TreeSet; | |
36 | import java.util.Vector; | |
37 | import org.apache.tools.ant.BuildException; | |
38 | import org.apache.tools.ant.Task; | |
39 | import org.apache.tools.ant.types.FileSet; | |
40 | import org.apache.tools.ant.types.PatternSet; | |
41 | import org.apache.tools.ant.types.Resource; | |
42 | import org.apache.tools.ant.types.ResourceCollection; | |
43 | import org.apache.tools.ant.types.resources.FileProvider; | |
44 | import org.apache.tools.ant.types.selectors.SelectorUtils; | |
45 | ||
6f1c3a93 UH |
46 | public class CopyLibsTask extends Task |
47 | { | |
48 | private static BuildException buildException(Exception e) | |
49 | { | |
50 | if (e instanceof BuildException) | |
51 | return (BuildException)e; | |
ea3ce762 | 52 | else |
6f1c3a93 | 53 | return new BuildException(e); |
ea3ce762 MC |
54 | } |
55 | ||
6f1c3a93 | 56 | private static int indexOf(byte[] data, byte v, int start) |
ea3ce762 | 57 | { |
6f1c3a93 UH |
58 | if (data != null) { |
59 | for (int i = start; i < data.length; i++) { | |
60 | if (data[i] == v) | |
61 | return i; | |
62 | } | |
63 | } | |
64 | return -1; | |
ea3ce762 MC |
65 | } |
66 | ||
6f1c3a93 | 67 | private static String fixSoname(String s) |
ea3ce762 | 68 | { |
6f1c3a93 UH |
69 | int l = s.length(); |
70 | int i = s.lastIndexOf(".so"); | |
ea3ce762 | 71 | |
6f1c3a93 UH |
72 | if (i >= 0 && i < (l - 3)) |
73 | return s.substring(0, i + 3); | |
74 | else | |
75 | return s; | |
ea3ce762 MC |
76 | } |
77 | ||
6f1c3a93 | 78 | protected class Library implements Comparable<Library> |
ea3ce762 | 79 | { |
6f1c3a93 UH |
80 | protected final File file; |
81 | protected final ElfFile elf; | |
82 | protected final HashSet<String> needed; | |
83 | protected final Vector<String> rpath; | |
84 | protected final TreeSet<Range> fixups; | |
85 | protected final String subdir; | |
86 | protected String soname, destname; | |
87 | protected final HashSet<Library> dependencies; | |
88 | protected boolean dependedUpon; | |
89 | ||
90 | protected class Range implements Comparable<Range> | |
91 | { | |
92 | public final long start, end; | |
93 | ||
94 | public int compareTo(Range r) | |
95 | { | |
96 | if (start < r.start) | |
97 | return -1; | |
98 | else if (start > r.start) | |
99 | return 1; | |
100 | else if (end < r.end) | |
101 | return -1; | |
102 | else if (end > r.end) | |
103 | return 1; | |
104 | else | |
105 | return 0; | |
106 | } | |
107 | ||
108 | public Range(long start, long end) | |
109 | { | |
110 | this.start = start; | |
111 | this.end = end; | |
112 | } | |
ea3ce762 | 113 | } |
ea3ce762 | 114 | |
6f1c3a93 UH |
115 | public int compareTo(Library l) |
116 | { | |
117 | return destname.compareTo(l.destname); | |
118 | } | |
ea3ce762 | 119 | |
6f1c3a93 UH |
120 | protected void addNeeded(String so) |
121 | { | |
122 | needed.add(so); | |
123 | } | |
ea3ce762 | 124 | |
6f1c3a93 UH |
125 | protected void addRpath(String rp) |
126 | { | |
127 | for (String p : rp.split(":")) { | |
128 | if (!rpath.contains(p)) | |
129 | rpath.add(p); | |
130 | } | |
131 | } | |
ea3ce762 | 132 | |
6f1c3a93 UH |
133 | private String getDynstr(ElfFile.Dynamic d, byte[] s, |
134 | long base) throws Exception | |
135 | { | |
136 | int offs = (int)d.d_val; | |
137 | int nul = indexOf(s, (byte)0, offs); | |
138 | ||
139 | if (nul < 0) | |
140 | throw new Exception("Invalid dynamic string"); | |
141 | ||
142 | String name = new String(s, offs, nul-offs, "US-ASCII"); | |
143 | offs += base; | |
144 | ||
145 | if (d.d_tag == ElfFile.DT_RPATH) { | |
146 | // Zap rpath, | |
147 | fixups.add(new Range(offs, offs + name.length())); | |
148 | } else { | |
149 | String fix = fixSoname(name); | |
150 | if (fix.length() < name.length()) { | |
151 | fixups.add(new Range(offs + fix.length(), | |
152 | offs + name.length())); | |
153 | } | |
154 | } | |
155 | return name; | |
ea3ce762 | 156 | } |
6f1c3a93 UH |
157 | |
158 | private void checkDynamic(ElfFile.SectionHeader dynsh, | |
159 | ElfFile.SectionHeader strsh) throws Exception | |
160 | { | |
161 | byte strs[] = new byte[(int)strsh.sh_size]; | |
162 | ||
163 | elf.read(strsh, strs); | |
164 | ||
165 | for (ElfFile.Dynamic d : elf.readDynamic(dynsh)) { | |
166 | if (d.d_tag == ElfFile.DT_NULL) | |
167 | break; | |
168 | else if (d.d_tag == ElfFile.DT_SONAME) | |
169 | soname = getDynstr(d, strs, strsh.sh_offset); | |
170 | else if (d.d_tag == ElfFile.DT_NEEDED) | |
171 | addNeeded(getDynstr(d, strs, strsh.sh_offset)); | |
172 | else if (d.d_tag == ElfFile.DT_RPATH) | |
173 | addRpath(getDynstr(d, strs, strsh.sh_offset)); | |
174 | } | |
ea3ce762 | 175 | } |
6f1c3a93 UH |
176 | |
177 | private void checkElf() throws Exception | |
178 | { | |
179 | for (ElfFile.SectionHeader sh : elf.secHeaders) { | |
180 | if (sh.sh_type == ElfFile.SHT_DYNAMIC) | |
181 | checkDynamic(sh, elf.secHeaders[sh.sh_link]); | |
ea3ce762 | 182 | } |
ea3ce762 | 183 | } |
ea3ce762 | 184 | |
6f1c3a93 UH |
185 | protected File getDestName(File dest) |
186 | { | |
187 | File d = new File(dest, subdir); | |
188 | File f = new File(d, destname); | |
189 | return f; | |
190 | } | |
ea3ce762 | 191 | |
6f1c3a93 UH |
192 | protected void writeTo(File dest) throws IOException |
193 | { | |
194 | FileInputStream is = new FileInputStream(file); | |
195 | FileOutputStream os = new FileOutputStream(dest); | |
196 | byte[] buf = new byte[65536]; | |
197 | TreeSet<Range> ranges = new TreeSet<Range>(fixups); | |
198 | long offs = 0; | |
199 | ||
200 | outer: for(;;) { | |
201 | long next = offs + buf.length; | |
202 | if (!ranges.isEmpty()) | |
203 | next = ranges.first().start; | |
204 | if (next > offs) { | |
205 | long chunk = next - offs; | |
206 | if (chunk > buf.length) | |
207 | chunk = buf.length; | |
208 | int r = is.read(buf, 0, (int)chunk); | |
209 | if (r < 0) | |
210 | break; | |
211 | os.write(buf, 0, r); | |
212 | offs += r; | |
213 | continue; | |
214 | } | |
215 | while (!ranges.isEmpty() && ranges.first().start <= offs) { | |
216 | Range rg = ranges.pollFirst(); | |
217 | if (rg.end > offs) { | |
218 | long chunk = rg.end - offs; | |
219 | while (chunk > 0) { | |
220 | int slice = (chunk > buf.length ? buf.length : (int)chunk); | |
221 | int r = is.read(buf, 0, slice); | |
222 | if (r < 0) | |
223 | break outer; | |
224 | if (r > 0) { | |
225 | Arrays.fill(buf, 0, r, (byte)0); | |
226 | os.write(buf, 0, r); | |
227 | chunk -= r; | |
228 | } | |
229 | } | |
230 | offs = rg.end; | |
231 | } | |
232 | } | |
233 | } | |
ea3ce762 | 234 | |
6f1c3a93 UH |
235 | os.close(); |
236 | is.close(); | |
237 | } | |
ea3ce762 | 238 | |
6f1c3a93 UH |
239 | protected Library(File f, String s) throws Exception |
240 | { | |
241 | file = f; | |
242 | subdir = s; | |
243 | elf = new ElfFile(file); | |
244 | needed = new HashSet<String>(); | |
245 | rpath = new Vector<String>(); | |
246 | fixups = new TreeSet<Range>(); | |
247 | soname = f.getName(); | |
248 | dependencies = new HashSet<Library>(); | |
249 | dependedUpon = false; | |
250 | checkElf(); | |
251 | destname = fixSoname(soname); | |
252 | } | |
ea3ce762 | 253 | |
6f1c3a93 UH |
254 | protected Library(Resource r) throws Exception |
255 | { | |
256 | this(r.as(FileProvider.class).getFile(), | |
257 | new File(r.getName()).getParent()); | |
258 | } | |
ea3ce762 | 259 | |
6f1c3a93 UH |
260 | public String toString() |
261 | { | |
262 | return "Library(" + file + ")"; | |
263 | } | |
ea3ce762 | 264 | |
6f1c3a93 | 265 | }; |
ea3ce762 | 266 | |
6f1c3a93 | 267 | protected class Worker |
ea3ce762 | 268 | { |
6f1c3a93 UH |
269 | protected final int machine; |
270 | protected final Queue<Library> workQueue; | |
271 | protected final HashMap<String,Library> knownLibs; | |
272 | protected final HashSet<Library> processedLibs; | |
273 | protected final HashSet<String> allDests; | |
274 | protected final Vector<String> rpath; | |
275 | ||
276 | protected void addWork(Library l) | |
277 | { | |
278 | if (l == null) | |
279 | return; | |
280 | Library kl = knownLibs.get(l.soname); | |
281 | if (kl == l) | |
282 | return; // Already processed. | |
283 | if (kl != null) | |
284 | throw new BuildException("Multiple libs with the same soname " + l.soname); | |
285 | knownLibs.put(l.soname, l); | |
286 | if (allDests.contains(l.destname)) | |
287 | throw new BuildException("Multiple libs with simplified soname " + l.destname); | |
288 | allDests.add(l.destname); | |
289 | workQueue.add(l); | |
290 | } | |
291 | ||
292 | protected void addRpath(Vector<String> rp) | |
293 | { | |
294 | for (String p : rp) { | |
295 | if (!rpath.contains(p)) | |
296 | rpath.add(p); | |
297 | } | |
298 | } | |
299 | ||
300 | protected void setDependency(Library l1, Library l2) | |
301 | { | |
ed3a4c3c | 302 | if (l2 == null) // Dependency on external lib. |
6f1c3a93 UH |
303 | return; |
304 | l1.dependencies.add(l2); | |
305 | l2.dependedUpon = true; | |
306 | } | |
307 | ||
308 | protected Library findLibInRpath(String s, String subdir) | |
309 | throws Exception | |
310 | { | |
311 | for (String p : rpath) { | |
312 | File f = new File(p, s); | |
313 | if (f.exists()) { | |
314 | Library l = new Library(f, subdir); | |
315 | if (l.elf.header.e_machine == machine) | |
316 | return l; | |
317 | } | |
318 | } | |
319 | return null; | |
320 | } | |
321 | ||
322 | protected Library getLibForSoname(String s, String subdir) | |
323 | throws Exception | |
324 | { | |
325 | Library l = knownLibs.get(s); | |
326 | if (l != null) | |
327 | return l; | |
328 | boolean include = false; | |
329 | for (String patt : patterns.getIncludePatterns(getProject())) { | |
330 | if (SelectorUtils.match(patt, s)) { | |
331 | include = true; | |
332 | break; | |
333 | } | |
334 | } | |
335 | if (!include) { | |
336 | for (String patt : patterns.getExcludePatterns(getProject())) { | |
337 | if (SelectorUtils.match(patt, s)) | |
338 | return null; | |
339 | } | |
340 | } | |
341 | l = findLibInRpath(s, subdir); | |
342 | if (l == null) | |
343 | throw new Exception("Library " + s + " not found"); | |
344 | addWork(l); | |
ea3ce762 MC |
345 | return l; |
346 | } | |
6f1c3a93 UH |
347 | |
348 | protected void process(Library l) throws Exception | |
349 | { | |
350 | if (processedLibs.contains(l)) | |
ed3a4c3c | 351 | return; // Already processed. |
6f1c3a93 UH |
352 | processedLibs.add(l); |
353 | addRpath(l.rpath); | |
354 | for (String need : l.needed) | |
355 | setDependency(l, getLibForSoname(need, l.subdir)); | |
356 | } | |
357 | ||
358 | protected Vector<Library> topoSort(HashSet<Library> libs) | |
359 | { | |
360 | Vector<Library> order = new Vector<Library>(); | |
361 | for (Library chk : new HashSet<Library>(libs)) { | |
362 | if (!chk.dependedUpon) | |
363 | libs.remove(chk); | |
364 | } | |
365 | while (!libs.isEmpty()) { | |
366 | HashSet<Library> leafs = new HashSet<Library>(); | |
367 | for (Library chk : new HashSet<Library>(libs)) { | |
368 | if (chk.dependencies.isEmpty()) | |
369 | leafs.add(chk); | |
370 | } | |
371 | if (leafs.isEmpty()) | |
372 | throw new BuildException("Circular dependency found"); | |
373 | ArrayList<Library> llist = new ArrayList<Library>(leafs); | |
374 | Collections.sort(llist); | |
375 | order.addAll(llist); | |
376 | libs.removeAll(leafs); | |
377 | for (Library l : libs) | |
378 | l.dependencies.removeAll(leafs); | |
379 | } | |
380 | return order; | |
381 | } | |
382 | ||
383 | protected void execute() throws BuildException | |
384 | { | |
385 | try { | |
386 | while (!workQueue.isEmpty()) | |
387 | process(workQueue.remove()); | |
388 | } catch (Exception e) { | |
389 | throw buildException(e); | |
390 | } | |
391 | if (property != null) { | |
392 | Vector<Library> order = | |
ed3a4c3c | 393 | topoSort(new HashSet<Library>(processedLibs)); |
6f1c3a93 UH |
394 | StringBuilder sb = new StringBuilder(); |
395 | for (Library l : order) { | |
396 | String name = l.destname; | |
397 | if (name.startsWith("lib")) | |
398 | name = name.substring(3); | |
399 | if (name.endsWith(".so")) | |
400 | name = name.substring(0, name.length() - 3); | |
401 | sb.append(" <item>"); | |
402 | sb.append(name); | |
403 | sb.append("</item>\n"); | |
404 | } | |
405 | String orderedLibs = sb.toString(); | |
406 | getProject().setNewProperty(property, orderedLibs); | |
407 | } | |
408 | for (Library chk : new HashSet<Library>(processedLibs)) { | |
409 | File dest = chk.getDestName(destDir); | |
410 | if (dest.exists() && | |
411 | dest.lastModified() >= chk.file.lastModified()) | |
412 | processedLibs.remove(chk); | |
413 | dest = dest.getParentFile(); | |
414 | if (!dest.exists()) | |
415 | dest.mkdirs(); | |
416 | } | |
417 | if (processedLibs.isEmpty()) | |
418 | return; | |
419 | log("Copying " + processedLibs.size() + " libraries into " + destDir); | |
420 | ArrayList<Library> libs = new ArrayList<Library>(processedLibs); | |
421 | Collections.sort(libs); | |
422 | try { | |
423 | for (Library l : libs) | |
424 | l.writeTo(l.getDestName(destDir)); | |
425 | } catch (Exception e) { | |
426 | throw buildException(e); | |
427 | } | |
428 | } | |
429 | ||
430 | protected Worker(int mach) | |
431 | { | |
432 | machine = mach; | |
433 | workQueue = new LinkedList<Library>(); | |
434 | knownLibs = new HashMap<String,Library>(); | |
435 | processedLibs = new HashSet<Library>(); | |
436 | allDests = new HashSet<String>(); | |
437 | rpath = new Vector<String>(); | |
438 | } | |
439 | ||
440 | }; | |
441 | ||
442 | protected File destDir = null; // The destination directory. | |
443 | protected Vector<ResourceCollection> rcs = new Vector<ResourceCollection>(); | |
444 | protected PatternSet patterns = new PatternSet(); | |
445 | protected String property = null; | |
446 | ||
447 | public void setTodir(File destDir) | |
448 | { | |
449 | this.destDir = destDir; | |
ea3ce762 MC |
450 | } |
451 | ||
6f1c3a93 | 452 | public void addFileset(FileSet set) |
ea3ce762 | 453 | { |
6f1c3a93 | 454 | add(set); |
ea3ce762 MC |
455 | } |
456 | ||
6f1c3a93 | 457 | public void add(ResourceCollection res) |
ea3ce762 | 458 | { |
6f1c3a93 | 459 | rcs.add(res); |
ea3ce762 MC |
460 | } |
461 | ||
6f1c3a93 | 462 | public PatternSet.NameEntry createExclude() |
ea3ce762 | 463 | { |
6f1c3a93 | 464 | return patterns.createExclude(); |
ea3ce762 MC |
465 | } |
466 | ||
6f1c3a93 | 467 | public PatternSet.NameEntry createInclude() |
ea3ce762 | 468 | { |
6f1c3a93 | 469 | return patterns.createInclude(); |
ea3ce762 MC |
470 | } |
471 | ||
6f1c3a93 | 472 | public void setProperty(String prop) |
ea3ce762 | 473 | { |
6f1c3a93 | 474 | property = prop; |
ea3ce762 | 475 | } |
6f1c3a93 UH |
476 | |
477 | public void execute() throws BuildException | |
478 | { | |
479 | HashMap<Integer,Worker> workers = new HashMap<Integer,Worker>(); | |
480 | final int size = rcs.size(); | |
481 | ||
482 | for (int i = 0; i < size; i++) { | |
483 | ResourceCollection rc = rcs.elementAt(i); | |
484 | for (Resource r : rc) { | |
485 | if (!r.isExists()) { | |
486 | String message = "Could not find library " | |
487 | + r.toLongString() + " to copy."; | |
488 | throw new BuildException(message); | |
489 | } | |
490 | Library l; | |
491 | try { | |
492 | l = new Library(r); | |
493 | } catch (Exception e) { | |
494 | throw buildException(e); | |
495 | } | |
496 | Integer m = new Integer(l.elf.header.e_machine); | |
497 | Worker w = workers.get(m); | |
498 | if (w == null) | |
499 | workers.put(m, (w = new Worker(m.intValue()))); | |
500 | w.addWork(l); | |
501 | } | |
ea3ce762 | 502 | } |
6f1c3a93 UH |
503 | ArrayList<Integer> machines = new ArrayList<Integer>(workers.keySet()); |
504 | Collections.sort(machines); | |
505 | for (Integer m : machines) | |
506 | workers.get(m).execute(); | |
ea3ce762 | 507 | } |
ea3ce762 | 508 | } |