1 /******************************************************************************\r
2 * FILE PURPOSE: Build Library Utilities\r
3 ******************************************************************************\r
4 * FILE NAME: buildlib.xs\r
5 *\r
6 * DESCRIPTION: \r
7 * This file contains common routines that are used by the various TCP3D driver \r
8 * components.\r
9 *\r
10 * Copyright (C) 2011-2018, Texas Instruments, Inc.\r
11 *****************************************************************************/\r
12 \r
13 /**************************************************************************\r
14 * FUNCTION NAME : listAllFiles\r
15 **************************************************************************\r
16 * DESCRIPTION :\r
17 * Utility function which lists all files with a specific extension \r
18 * present in a directory and any directory inside it.\r
19 **************************************************************************/\r
20 function listAllFiles(ext, dir, recurse)\r
21 { \r
22 var srcFile = [];\r
23 var d;\r
24 \r
25 /* If recurse parameter is not specified we default to recursive search. */\r
26 if (recurse == null)\r
27 recurse = true;\r
28 \r
29 if (dir == undefined) \r
30 d = ".";\r
31 else \r
32 d = dir;\r
33 \r
34 /* Get access to the current directory. */\r
35 var file = new java.io.File(d);\r
36 \r
37 /* Check if the file exists and it is a directory. */\r
38 if (file.exists() && file.isDirectory()) \r
39 {\r
40 /* Get a list of all files in the specific directory. */\r
41 var fileList = file.listFiles();\r
42 for (var i = 0; i < fileList.length; i++) \r
43 {\r
44 /* Dont add the generated directory 'package' and any of its files \r
45 * to the list here. */\r
46 if (fileList[i].getName().matches("package") == false)\r
47 {\r
48 /* Check if the detected file is a directory */\r
49 if (fileList[i].isDirectory())\r
50 {\r
51 /* We will recurse into the subdirectory only if required to do so. */\r
52 if (recurse == true)\r
53 {\r
54 /* Generate the directory Name in which we will recurse. */ \r
55 var directoryName = d + "/" + fileList[i].getName();\r
56 \r
57 /* Get a list of all files in this directory */\r
58 var fileListing = listAllFiles (ext, directoryName, recurse);\r
59 if (fileListing != null)\r
60 {\r
61 /* Return a list of all file names in the directory. */\r
62 for (var j = 0 ; j < fileListing.length; j++) \r
63 srcFile[srcFile.length++] = fileListing[j];\r
64 }\r
65 }\r
66 }\r
67 else\r
68 {\r
69 /* This was a file. Check if the file name matches the extension */\r
70 if (fileList[i].getName().endsWith(ext) == true)\r
71 srcFile[srcFile.length++] = d + "/" + fileList[i].getName();\r
72 }\r
73 }\r
74 }\r
75 return srcFile;\r
76 }\r
77 return null;\r
78 }\r
79 \r
80 function createMake(makefile)\r
81 {\r
82 /* Create the main make file */\r
83 var fileModule = xdc.module('xdc.services.io.File');\r
84 if(makefile==undefined)\r
85 {\r
86 try{\r
87 makefile = fileModule.open("makefile", "w");\r
88 } catch (ex)\r
89 {\r
90 print("makefile cannot be written to. Please check Writing Permissions.");\r
91 java.lang.System.exit(1);\r
92 } \r
93 \r
94 Pkg.makePrologue += "\ninclude makefile\n"; \r
95 \r
96 Pkg.makeEpilogue += "\nclean::\n\t-$(RM) makefile\n";\r
97 makefile.writeLine("#*******************************************************************************");\r
98 makefile.writeLine("#* FILE PURPOSE: Top level makefile for Creating Component Libraries");\r
99 makefile.writeLine("#*******************************************************************************");\r
100 makefile.writeLine("#* FILE NAME: makefile");\r
101 makefile.writeLine("#*");\r
102 makefile.writeLine("#* DESCRIPTION: Defines Compiler tools paths, libraries , Build Options ");\r
103 makefile.writeLine("#*");\r
104 makefile.writeLine("#*");\r
105 makefile.writeLine("#*******************************************************************************");\r
106 makefile.writeLine("#*");\r
107 makefile.writeLine("# (Mandatory) Specify where various tools are installed.");\r
108 \r
109 var file = xdc.module('xdc.services.io.File');\r
110 \r
111 var xdcTargetType = java.lang.System.getenv("XDCTARGET");\r
112 var toolsBaseDir = java.lang.System.getenv("XDCCGROOT"); \r
113 \r
114 makefile.writeLine("\n# Output for prebuilt generated libraries");\r
115 makefile.writeLine("export LIBDIR ?= ./lib");\r
116 /* use sectti.exe from path */\r
117 makefile.writeLine("export SECTTI ?= sectti");\r
118 \r
119 /* Create INCDIR from XDCPATH */\r
120 \r
121 /* copy the environment array from the current environment */\r
122 var env = java.lang.System.getenv();\r
123 var getxdcpath=String(java.lang.System.getenv("XDCPATH"));\r
124 getxdcpath= getxdcpath.replace(/\\/g,"/");\r
125 var keys = env.keySet().toArray();\r
126 var key;\r
127 var stat={};\r
128 var env_j=[];\r
129 var listxdcpath = new Array();\r
130 for (var i = 0; i < keys.length; i++) {\r
131 key = String(keys[i]);\r
132 if((key.match("INSTALL_PATH")) || (key.match("INSTALLDIR")))\r
133 {\r
134 var keyPath=String(env.get(key));\r
135 keyPath=keyPath.replace(/\\/g,"/");\r
136 var file = xdc.module('xdc.services.io.File');\r
137 keyPath=file.getDOSPath(keyPath);\r
138 if(getxdcpath.toString().match(keyPath))\r
139 {\r
140 listxdcpath.push({keyname: key,keypath: keyPath});\r
141 while(getxdcpath.toString().match(keyPath))\r
142 {\r
143 getxdcpath=getxdcpath.toString().replace(keyPath,"$("+key+")");\r
144 }\r
145 }\r
146 }\r
147 }\r
148 var pkgroot="..";\r
149 for (var i = Pkg.name.split('.').length; i > 1; i--) {\r
150 pkgroot+="/..";\r
151 }\r
152 \r
153 makefile.writeLine("\n# ROOT Directory"); \r
154 makefile.writeLine("export ROOTDIR := "+pkgroot);\r
155 \r
156 makefile.writeLine("\n# Include Rules.make");\r
157 makefile.writeLine("ifndef PDK_INSTALL_DIR_RECIPE");\r
158 makefile.writeLine("ifeq ($(RULES_MAKE),)");\r
159 makefile.writeLine("include $(PDK_INSTALL_PATH)/ti/build/Rules.make");\r
160 makefile.writeLine("else");\r
161 makefile.writeLine("include $(RULES_MAKE)");\r
162 makefile.writeLine("endif");\r
163 makefile.writeLine("endif");\r
164 \r
165 makefile.writeLine("\n# INCLUDE Directory");\r
166 makefile.writeLine("export INCDIR := "+getxdcpath+";$(ROOTDIR);$(C6X_GEN_INSTALL_PATH)/include"); \r
167 \r
168 makefile.writeLine("\n# Common Macros used in make"); \r
169 makefile.writeLine("\nifndef RM"); \r
170 makefile.writeLine("export RM = rm -f");\r
171 makefile.writeLine("endif"); \r
172 \r
173 makefile.writeLine("\nifndef CP"); \r
174 makefile.writeLine("export CP = cp -p"); \r
175 makefile.writeLine("endif"); \r
176 \r
177 makefile.writeLine("\nexport MKDIR = mkdir -p");\r
178 \r
179 makefile.writeLine("\nifndef RMDIR"); \r
180 makefile.writeLine("export RMDIR = rm -rf");\r
181 makefile.writeLine("endif"); \r
182 \r
183 makefile.writeLine("\nifndef SED"); \r
184 makefile.writeLine("export SED = sed"); \r
185 makefile.writeLine("endif"); \r
186 \r
187 makefile.writeLine("\nifndef MAKE"); \r
188 makefile.writeLine("export MAKE = make"); \r
189 makefile.writeLine("endif"); \r
190 \r
191 makefile.writeLine("\n# PHONY Targets"); \r
192 makefile.writeLine(".PHONY: all clean cleanall "); \r
193 \r
194 makefile.writeLine("\n# FORCE Targets"); \r
195 makefile.writeLine("FORCE: "); \r
196 \r
197 makefile.writeLine("\n# all rule"); \r
198 makefile.writeLine("all: .executables"); \r
199 makefile.writeLine(".executables: .libraries");\r
200 makefile.writeLine(".libraries:");\r
201 \r
202 makefile.writeLine("\n# Clean Rule"); \r
203 makefile.writeLine("clean:: clean_package"); \r
204 makefile.writeLine("# Clean Top Level Object Directory "); \r
205 makefile.writeLine("clean_package :\n\t$(RMDIR) $(LIBDIR)/*/"); \r
206 makefile.writeLine("\t$(RMDIR) package/cfg"); \r
207 }\r
208 else\r
209 {\r
210 try{\r
211 makefile = fileModule.open("makefile", "a");\r
212 } catch (ex)\r
213 {\r
214 print("makefile cannot be written to. Please check Writing Permissions.");\r
215 java.lang.System.exit(1);\r
216 } \r
217 \r
218 }\r
219 \r
220 return makefile;\r
221 }\r
222 \r
223 function createLibMake(device, makelibname,targetname, objectPath)\r
224 {\r
225 var tooldir;\r
226 var stringname=String(targetname).replace("(xdc.bld.ITarget.Module)","");\r
227 if(stringname.match("ARM11"))\r
228 {\r
229 tooldir="TI_ARM11_GEN_INSTALL_PATH"; \r
230 }\r
231 else\r
232 {\r
233 tooldir="C6X_GEN_INSTALL_PATH";\r
234 }\r
235 switch(stringname)\r
236 {\r
237 case String(C66LE):\r
238 targetname=C66LE;\r
239 break;\r
240 case String(C66BE):\r
241 targetname=C66BE;\r
242 break;\r
243 \r
244 }\r
245 var fileModule = xdc.module('xdc.services.io.File');\r
246 try{\r
247 var dstFile = new java.io.File(makelibname);\r
248 dstFile.getParentFile().mkdirs(); \r
249 libmakefile = fileModule.open(makelibname, "w");\r
250 /* Add to Archive list */\r
251 } catch (ex)\r
252 {\r
253 print(makelibname+" cannot be written to. Please check Writing Permissions.");\r
254 java.lang.System.exit(1);\r
255 } \r
256 libmakefile.writeLine("#*******************************************************************************");\r
257 libmakefile.writeLine("#* FILE PURPOSE: Lower level makefile for Creating Component Libraries");\r
258 libmakefile.writeLine("#*******************************************************************************");\r
259 libmakefile.writeLine("#* FILE NAME: "+makelibname);\r
260 libmakefile.writeLine("#*");\r
261 libmakefile.writeLine("#* DESCRIPTION: Defines Source Files, Compilers flags and build rules");\r
262 libmakefile.writeLine("#*");\r
263 libmakefile.writeLine("#*");\r
264 libmakefile.writeLine("#*******************************************************************************");\r
265 libmakefile.writeLine("#");\r
266 libmakefile.writeLine("");\r
267 libmakefile.writeLine("#");\r
268 libmakefile.writeLine("# Macro definitions referenced below");\r
269 libmakefile.writeLine("#");\r
270 libmakefile.writeLine("empty =");\r
271 libmakefile.writeLine("space =$(empty) $(empty)");\r
272 \r
273 if(stringname.match("ti.targets"))\r
274 {\r
275 \r
276 var rtslibtemp = targetname.lnkOpts.suffix.toString().split("/");\r
277 var rtslib;\r
278 for(n=0;n<rtslibtemp.length;n++)\r
279 {\r
280 if(rtslibtemp[n].match(".lib"))\r
281 { \r
282 rtslib=rtslibtemp[n];\r
283 }\r
284 }\r
285 \r
286 libmakefile.writeLine("CC = $("+tooldir+")/bin/"+targetname.cc.cmd +" "+targetname.ccOpts.prefix+" "+targetname.cc.opts);\r
287 libmakefile.writeLine("AC = $("+tooldir+")/bin/"+targetname.asm.cmd +" "+targetname.asmOpts.prefix+" "+targetname.asm.opts); \r
288 libmakefile.writeLine("ARIN = $("+tooldir+")/bin/"+targetname.ar.cmd +" "+targetname.ar.opts); \r
289 libmakefile.writeLine("LD = $("+tooldir+")/bin/"+targetname.lnk.cmd +" "+targetname.lnk.opts); \r
290 libmakefile.writeLine("RTSLIB = -l $("+tooldir+")/lib/"+rtslib); \r
291 }\r
292 else\r
293 {\r
294 print("Error: Non-TI targets are not currently supported ");\r
295 java.lang.System.exit(1);\r
296 \r
297 }\r
298 \r
299 libmakefile.writeLine("INCS = -I. -I$(strip $(subst ;, -I,$(subst $(space),\\$(space),$(INCDIR))))");\r
300 libmakefile.writeLine("OBJEXT = o"+targetname.suffix); \r
301 libmakefile.writeLine("AOBJEXT = s"+targetname.suffix); \r
302 /* libmakefile.writeLine("INTERNALDEFS = -D"+stringname.replace(/\./g,"_")+" -Dxdc_target_types__=ti/targets/std.h -DMAKEFILE_BUILD -eo.$(OBJEXT) -ea.$(AOBJEXT) -fr=$(@D) -fs=$(@D) -ppa -ppd=$@.dep");*/\r
303 libmakefile.writeLine("INTERNALDEFS = -D"+stringname.replace(/\./g,"_")+" -DMAKEFILE_BUILD -eo.$(OBJEXT) -ea.$(AOBJEXT) -fr=$(@D) -fs=$(@D) -ppa -ppd=$@.dep");\r
304 libmakefile.writeLine("INTERNALLINKDEFS = -o $@ -m $@.map");\r
305 libmakefile.writeLine("OBJDIR = $(LIBDIR)/" + device.toString() + "/obj");\r
306 libmakefile.writeLine("DEVOBJDIR = $(LIBDIR)/" + device.toString() + "/obj");\r
307 \r
308 return libmakefile;\r
309 \r
310 }\r
311 \r
312 function makeAddObjects(srcString, makefilename, srcfiles, flags,fileExt, targetName, objDir)\r
313 {\r
314 var sourcestring = (srcString + fileExt).toString().toUpperCase();\r
315 var compileflagstring = sourcestring + "FLAGS";\r
316 var objectliststring = sourcestring + "OBJS";\r
317 /* List all the source files */\r
318 makefilename.writeLine("\n#List the "+srcString+" Files"); \r
319 makefilename.writeLine(sourcestring + "= \\");\r
320 for(var i=0;i<srcfiles.length-1;i++)\r
321 {\r
322 makefilename.writeLine(" "+srcfiles[i]+"\\");\r
323 }\r
324 makefilename.writeLine(" "+srcfiles[i]+"\n");\r
325 \r
326 /* Flags for the source files */\r
327 makefilename.writeLine("# FLAGS for the "+srcString+" Files"); \r
328 var compileflags="";\r
329 if(fileExt == "asm" && flags.aopts != undefined)\r
330 {\r
331 compileflags+=" "+flags.aopts;\r
332 }\r
333 else if((fileExt == "c" || fileExt == "sa")&& flags.copts != undefined)\r
334 {\r
335 compileflags+=" "+flags.copts;\r
336 } \r
337 \r
338 if(flags.incs != undefined)\r
339 {\r
340 compileflags+=" "+flags.incs;\r
341 }\r
342 \r
343 \r
344 makefilename.writeLine(compileflagstring+" = "+compileflags +" \n"); \r
345 makefilename.writeLine("# Make Rule for the "+srcString+" Files"); \r
346 \r
347 makefilename.writeLine(objectliststring +" = $(patsubst %."+fileExt+", "+objDir+"/%.$(OBJEXT), $(" + sourcestring + "))"); \r
348 makefilename.writeLine("\n$("+objectliststring+"): "+objDir+"/%.$(OBJEXT): %."+fileExt); \r
349 if(fileExt == "c")\r
350 { \r
351 makefilename.writeLine("\t-@echo cl"+targetName.suffix +" $< ..."); \r
352 }\r
353 else\r
354 {\r
355 makefilename.writeLine("\t-@echo asm"+targetName.suffix +" $< ..."); \r
356 }\r
357 makefilename.writeLine("\tif [ ! -d $(@D) ]; then $(MKDIR) $(@D) ; fi;"); \r
358 \r
359 if(fileExt == "c")\r
360 {\r
361 makefilename.writeLine("\t$(RM) $@.dep");\r
362 makefilename.writeLine("\t$(CC) $("+compileflagstring+") $(INTERNALDEFS) $(INCS) -fc $< ");\r
363 makefilename.writeLine("\t-@$(CP) $@.dep $@.pp; \\");\r
364 makefilename.writeLine(" $(SED) -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\\\$$//' \\");\r
365 makefilename.writeLine(" -e '/^$$/ d' -e 's/$$/ :/' < $@.pp >> $@.dep; \\");\r
366 makefilename.writeLine(" $(RM) $@.pp ");\r
367 }\r
368 else if(fileExt == "asm")\r
369 {\r
370 makefilename.writeLine("\t$(AC) $("+compileflagstring+") $(INTERNALDEFS) $(INCS) -fa $< ");\r
371 }\r
372 else if(fileExt == "sa")\r
373 {\r
374 makefilename.writeLine("\t$(AC) $("+compileflagstring+") $(INTERNALDEFS) $(INCS) $< ");\r
375 }\r
376 makefilename.writeLine("\n#Create Empty rule for dependency");\r
377 makefilename.writeLine("$("+objectliststring+"):"+makefilename.$private.fd);\r
378 makefilename.writeLine(makefilename.$private.fd+":");\r
379 makefilename.writeLine("\n#Include Depedency for "+srcString+" Files");\r
380 makefilename.writeLine("ifneq (clean,$(MAKECMDGOALS))");\r
381 makefilename.writeLine(" -include $("+objectliststring+":%.$(OBJEXT)=%.$(OBJEXT).dep)");\r
382 makefilename.writeLine("endif");\r
383 \r
384 }\r
385 \r
386 /**************************************************************************\r
387 * FUNCTION NAME : buildLibrary\r
388 **************************************************************************\r
389 * DESCRIPTION :\r
390 * Utility function which will build a specific library\r
391 **************************************************************************/\r
392 var makefilelocal;\r
393 function buildLibrary (device, libOptions, libName, target, libFiles) \r
394 {\r
395 var lldFullLibraryPath = "./lib/" + device.toString() + "/" + libName;\r
396 var lldFullBuildPath = "./build/" + device.toString() + "/" + libName;\r
397 var lldFullLibraryPathMake = "$(LIBDIR)/" + device.toString() + "/" + libName;\r
398 \r
399 /* Create Main make file in the root of package folder */\r
400 makefilelocal = createMake(makefilelocal);\r
401 \r
402 /* Write the rule to make library in main makefile */\r
403 lib = lldFullBuildPath+".a"+target.suffix;\r
404 libMake = lldFullLibraryPathMake+".a"+target.suffix;\r
405 var objectPath= "./package/"+lldFullBuildPath;\r
406 makefilelocal.writeLine("\n\n# Make rule to create "+libMake+" library");\r
407 makefilelocal.writeLine(".libraries: "+ libMake);\r
408 makefilelocal.writeLine(libMake+": FORCE\n\t$(MAKE) -f "+lib+".mk $@"); \r
409 \r
410 /* Create Library make file in the lib folder */\r
411 var makefilelib= createLibMake(device, lib+".mk",target,objectPath); \r
412 \r
413 /* Rule to clean library in main makefile */\r
414 makefilelocal.writeLine("# Rule to clean "+libMake+" library"); \r
415 makefilelocal.writeLine("clean ::\n\t$(RM) "+ libMake); \r
416 librule="\n\n"+libMake+" :";\r
417 \r
418 /* Add files to be compiled */\r
419 /* Separate out the C and assembly files */\r
420 var cfiles= new Array();\r
421 var afiles= new Array();\r
422 var safiles= new Array();\r
423 for each(var srcFile in libFiles)\r
424 {\r
425 var srcFile=String(srcFile);\r
426 var dot = srcFile.lastIndexOf(".");\r
427 var extension = srcFile.substr(dot,srcFile.length); \r
428 if(extension == ".c")\r
429 {\r
430 cfiles.push(srcFile);\r
431 }\r
432 else if(extension == ".sa")\r
433 {\r
434 safiles.push(srcFile);\r
435 }\r
436 else if(extension == ".asm")\r
437 {\r
438 afiles.push(srcFile);\r
439 }\r
440 else\r
441 {\r
442 print("ERROR: Unsupported file extension");\r
443 java.lang.System.exit(1);\r
444 }\r
445 }\r
446 if(cfiles.length > 0)\r
447 { \r
448 makeAddObjects("COMMONSRC",makefilelib,cfiles,libOptions,"c",target, "$(OBJDIR)");\r
449 librule += " $(COMMONSRCCOBJS)"; \r
450 }\r
451 if(afiles.length > 0)\r
452 { \r
453 makeAddObjects("COMMONSRC",makefilelib,afiles,libOptions,"asm",target, "$(OBJDIR)");\r
454 librule += " $(COMMONSRCASMOBJS)"; \r
455 }\r
456 if(safiles.length > 0)\r
457 { \r
458 makeAddObjects("COMMONSRC",makefilelib,safiles,libOptions,"sa",target, "$(OBJDIR)");\r
459 librule += " $(COMMONSRCSAOBJS)"; \r
460 }\r
461 \r
462 makefilelib.writeLine(librule);\r
463 makefilelib.writeLine("\t@echo archiving $? into $@ ...");\r
464 makefilelib.writeLine("\tif [ ! -d $(LIBDIR)/" + device.toString() + " ]; then $(MKDIR) $(LIBDIR)/" + device.toString() + " ; fi;"); \r
465 makefilelib.writeLine("\t$(ARIN) $@ $?");\r
466 makefilelib.close(); \r
467 \r
468 /* Create the Epilogue; which executes after all the builds are completed. \r
469 * This is used to generate the benchmark information for the built library. \r
470 * Also add the benchmarking information file to the package. */\r
471 \r
472 /* Put the temp file in object directory since javascript doesn't have a built in tmpname, \r
473 * and don't want --jobs=# with # > 1 to result in collisions */\r
474 var libFullName = lldFullLibraryPath + ".a" + target.suffix;\r
475 var tempFile = libFullName + ".xml";\r
476 Pkg.makeEpilogue += ".libraries: " + libFullName + "_size.txt\n";\r
477 Pkg.makeEpilogue += libFullName + "_size.txt: " + libFullName + "\n";\r
478 if ( java.lang.String(target.name).contains('66') )\r
479 { \r
480 Pkg.makeEpilogue += "\n\t $(C6X_GEN_INSTALL_PATH)/bin/ofd6x -x " + libFullName + " > " + tempFile;\r
481 Pkg.makeEpilogue += "\n\t $(SECTTI) " + tempFile + " > " + libFullName + "_size.txt";\r
482 Pkg.makeEpilogue += "\n\t $(RM) " + tempFile + "\n\n";\r
483 } \r
484 else if (target.name == "M4")\r
485 {\r
486 Pkg.makeEpilogue += "\n\t $(TOOLCHAIN_PATH_M4)/bin/armofd -x " + libFullName + " > " + tempFile;\r
487 Pkg.makeEpilogue += "\n\t $(SECTTI) " + tempFile + " > " + libFullName + "_size.txt";\r
488 Pkg.makeEpilogue += "\n\t $(RM) " + tempFile + "\n\n";\r
489 }\r
490 else\r
491 {\r
492 Pkg.makeEpilogue += "\n\t $(TOOLCHAIN_PATH_A15)/bin/$(CROSS_TOOL_PRFX)size " + libFullName + " > " + libFullName + "_size.txt";\r
493 } \r
494 Pkg.otherFiles[Pkg.otherFiles.length++] = lldFullLibraryPath + ".a" + target.suffix + "_size.txt";\r
495 Pkg.otherFiles[Pkg.otherFiles.length++] = lldFullBuildPath + ".a" + target.suffix + ".mk";\r
496 Pkg.otherFiles[Pkg.otherFiles.length++] = lldFullLibraryPath + ".a" + target.suffix;\r
497 \r
498 /* We need to clean after ourselves; extend the 'clean' target to take care of this. */\r
499 Pkg.makeEpilogue += "clean::\n";\r
500 Pkg.makeEpilogue += "\t$(RM) " + lldFullBuildPath + ".a" + target.suffix + "_size.txt\n"; \r
501 Pkg.makeEpilogue += "\t$(RMDIR) " + "$(LIBDIR)/" + device.toString() + " \n\n";\r
502 \r
503 return lib;\r
504 }\r
505 \r
506 \r
507 \r