aboutsummaryrefslogtreecommitdiffstats
path: root/meta/classes/package.bbclass
blob: 1efc396ac646acd3a3bb242d82f0d5faa08b2801 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
#
# Packaging process
#
# Executive summary: This class iterates over the functions listed in PACKAGEFUNCS
# Taking D and splitting it up into the packages listed in PACKAGES, placing the
# resulting output in PKGDEST.
#
# There are the following default steps but PACKAGEFUNCS can be extended:
#
# a) package_get_auto_pr - get PRAUTO from remote PR service
#
# b) perform_packagecopy - Copy D into PKGD
#
# c) package_do_split_locales - Split out the locale files, updates FILES and PACKAGES
#
# d) split_and_strip_files - split the files into runtime and debug and strip them.
#    Debug files include debug info split, and associated sources that end up in -dbg packages
#
# e) fixup_perms - Fix up permissions in the package before we split it.
#
# f) populate_packages - Split the files in PKGD into separate packages in PKGDEST/<pkgname>
#    Also triggers the binary stripping code to put files in -dbg packages.
#
# g) package_do_filedeps - Collect perfile run-time dependency metadata
#    The data is stores in FILER{PROVIDES,DEPENDS}_file_pkg variables with
#    a list of affected files in FILER{PROVIDES,DEPENDS}FLIST_pkg
#
# h) package_do_shlibs - Look at the shared libraries generated and autotmatically add any
#    dependencies found. Also stores the package name so anyone else using this library
#    knows which package to depend on.
#
# i) package_do_pkgconfig - Keep track of which packages need and provide which .pc files
#
# j) read_shlibdeps - Reads the stored shlibs information into the metadata
#
# k) package_depchains - Adds automatic dependencies to -dbg and -dev packages
#
# l) emit_pkgdata - saves the packaging data into PKGDATA_DIR for use in later
#    packaging steps

inherit packagedata
inherit chrpath
inherit package_pkgdata

# Need the package_qa_handle_error() in insane.bbclass
inherit insane

PKGD    = "${WORKDIR}/package"
PKGDEST = "${WORKDIR}/packages-split"

LOCALE_SECTION ?= ''

ALL_MULTILIB_PACKAGE_ARCHS = "${@all_multilib_tune_values(d, 'PACKAGE_ARCHS')}"

# rpm is used for the per-file dependency identification
# dwarfsrcfiles is used to determine the list of debug source files
PACKAGE_DEPENDS += "rpm-native dwarfsrcfiles-native"


# If your postinstall can execute at rootfs creation time rather than on
# target but depends on a native/cross tool in order to execute, you need to
# list that tool in PACKAGE_WRITE_DEPS. Target package dependencies belong
# in the package dependencies as normal, this is just for native/cross support
# tools at rootfs build time.
PACKAGE_WRITE_DEPS ??= ""

def legitimize_package_name(s):
    """
    Make sure package names are legitimate strings
    """
    import re

    def fixutf(m):
        cp = m.group(1)
        if cp:
            return ('\\u%s' % cp).encode('latin-1').decode('unicode_escape')

    # Handle unicode codepoints encoded as <U0123>, as in glibc locale files.
    s = re.sub(r'<U([0-9A-Fa-f]{1,4})>', fixutf, s)

    # Remaining package name validity fixes
    return s.lower().replace('_', '-').replace('@', '+').replace(',', '+').replace('/', '-')

def do_split_packages(d, root, file_regex, output_pattern, description, postinst=None, recursive=False, hook=None, extra_depends=None, aux_files_pattern=None, postrm=None, allow_dirs=False, prepend=False, match_path=False, aux_files_pattern_verbatim=None, allow_links=False, summary=None):
    """
    Used in .bb files to split up dynamically generated subpackages of a
    given package, usually plugins or modules.

    Arguments:
    root           -- the path in which to search
    file_regex     -- regular expression to match searched files. Use
                      parentheses () to mark the part of this expression
                      that should be used to derive the module name (to be
                      substituted where %s is used in other function
                      arguments as noted below)
    output_pattern -- pattern to use for the package names. Must include %s.
    description    -- description to set for each package. Must include %s.
    postinst       -- postinstall script to use for all packages (as a
                      string)
    recursive      -- True to perform a recursive search - default False
    hook           -- a hook function to be called for every match. The
                      function will be called with the following arguments
                      (in the order listed):
                        f: full path to the file/directory match
                        pkg: the package name
                        file_regex: as above
                        output_pattern: as above
                        modulename: the module name derived using file_regex
    extra_depends  -- extra runtime dependencies (RDEPENDS) to be set for
                      all packages. The default value of None causes a
                      dependency on the main package (${PN}) - if you do
                      not want this, pass '' for this parameter.
    aux_files_pattern -- extra item(s) to be added to FILES for each
                      package. Can be a single string item or a list of
                      strings for multiple items.  Must include %s.
    postrm         -- postrm script to use for all packages (as a string)
    allow_dirs     -- True allow directories to be matched - default False
    prepend        -- if True, prepend created packages to PACKAGES instead
                      of the default False which appends them
    match_path     -- match file_regex on the whole relative path to the
                      root rather than just the file name
    aux_files_pattern_verbatim -- extra item(s) to be added to FILES for
                      each package, using the actual derived module name
                      rather than converting it to something legal for a
                      package name. Can be a single string item or a list
                      of strings for multiple items. Must include %s.
    allow_links    -- True to allow symlinks to be matched - default False
    summary        -- Summary to set for each package. Must include %s;
                      defaults to description if not set.

    """

    dvar = d.getVar('PKGD')
    root = d.expand(root)
    output_pattern = d.expand(output_pattern)
    extra_depends = d.expand(extra_depends)

    # If the root directory doesn't exist, don't error out later but silently do
    # no splitting.
    if not os.path.exists(dvar + root):
        return []

    ml = d.getVar("MLPREFIX")
    if ml:
        if not output_pattern.startswith(ml):
            output_pattern = ml + output_pattern

        newdeps = []
        for dep in (extra_depends or "").split():
            if dep.startswith(ml):
                newdeps.append(dep)
            else:
                newdeps.append(ml + dep)
        if newdeps:
            extra_depends = " ".join(newdeps)


    packages = d.getVar('PACKAGES').split()
    split_packages = set()

    if postinst:
        postinst = '#!/bin/sh\n' + postinst + '\n'
    if postrm:
        postrm = '#!/bin/sh\n' + postrm + '\n'
    if not recursive:
        objs = os.listdir(dvar + root)
    else:
        objs = []
        for walkroot, dirs, files in os.walk(dvar + root):
            for file in files:
                relpath = os.path.join(walkroot, file).replace(dvar + root + '/', '', 1)
                if relpath:
                    objs.append(relpath)

    if extra_depends == None:
        extra_depends = d.getVar("PN")

    if not summary:
        summary = description

    for o in sorted(objs):
        import re, stat
        if match_path:
            m = re.match(file_regex, o)
        else:
            m = re.match(file_regex, os.path.basename(o))

        if not m:
            continue
        f = os.path.join(dvar + root, o)
        mode = os.lstat(f).st_mode
        if not (stat.S_ISREG(mode) or (allow_links and stat.S_ISLNK(mode)) or (allow_dirs and stat.S_ISDIR(mode))):
            continue
        on = legitimize_package_name(m.group(1))
        pkg = output_pattern % on
        split_packages.add(pkg)
        if not pkg in packages:
            if prepend:
                packages = [pkg] + packages
            else:
                packages.append(pkg)
        oldfiles = d.getVar('FILES_' + pkg)
        newfile = os.path.join(root, o)
        # These names will be passed through glob() so if the filename actually
        # contains * or ? (rare, but possible) we need to handle that specially
        newfile = newfile.replace('*', '[*]')
        newfile = newfile.replace('?', '[?]')
        if not oldfiles:
            the_files = [newfile]
            if aux_files_pattern:
                if type(aux_files_pattern) is list:
                    for fp in aux_files_pattern:
                        the_files.append(fp % on)
                else:
                    the_files.append(aux_files_pattern % on)
            if aux_files_pattern_verbatim:
                if type(aux_files_pattern_verbatim) is list:
                    for fp in aux_files_pattern_verbatim:
                        the_files.append(fp % m.group(1))
                else:
                    the_files.append(aux_files_pattern_verbatim % m.group(1))
            d.setVar('FILES_' + pkg, " ".join(the_files))
        else:
            d.setVar('FILES_' + pkg, oldfiles + " " + newfile)
        if extra_depends != '':
            d.appendVar('RDEPENDS_' + pkg, ' ' + extra_depends)
        if not d.getVar('DESCRIPTION_' + pkg):
            d.setVar('DESCRIPTION_' + pkg, description % on)
        if not d.getVar('SUMMARY_' + pkg):
            d.setVar('SUMMARY_' + pkg, summary % on)
        if postinst:
            d.setVar('pkg_postinst_' + pkg, postinst)
        if postrm:
            d.setVar('pkg_postrm_' + pkg, postrm)
        if callable(hook):
            hook(f, pkg, file_regex, output_pattern, m.group(1))

    d.setVar('PACKAGES', ' '.join(packages))
    return list(split_packages)

PACKAGE_DEPENDS += "file-native"

python () {
    if d.getVar('PACKAGES') != '':
        deps = ""
        for dep in (d.getVar('PACKAGE_DEPENDS') or "").split():
            deps += " %s:do_populate_sysroot" % dep
        d.appendVarFlag('do_package', 'depends', deps)

        # shlibs requires any DEPENDS to have already packaged for the *.list files
        d.appendVarFlag('do_package', 'deptask', " do_packagedata")
}

# Get a list of files from file vars by searching files under current working directory
# The list contains symlinks, directories and normal files.
def files_from_filevars(filevars):
    import os,glob
    cpath = oe.cachedpath.CachedPath()
    files = []
    for f in filevars:
        if os.path.isabs(f):
            f = '.' + f
        if not f.startswith("./"):
            f = './' + f
        globbed = glob.glob(f)
        if globbed:
            if [ f ] != globbed:
                files += globbed
                continue
        files.append(f)

    symlink_paths = []
    for ind, f in enumerate(files):
        # Handle directory symlinks. Truncate path to the lowest level symlink
        parent = ''
        for dirname in f.split('/')[:-1]:
            parent = os.path.join(parent, dirname)
            if dirname == '.':
                continue
            if cpath.islink(parent):
                bb.warn("FILES contains file '%s' which resides under a "
                        "directory symlink. Please fix the recipe and use the "
                        "real path for the file." % f[1:])
                symlink_paths.append(f)
                files[ind] = parent
                f = parent
                break

        if not cpath.islink(f):
            if cpath.isdir(f):
                newfiles = [ os.path.join(f,x) for x in os.listdir(f) ]
                if newfiles:
                    files += newfiles

    return files, symlink_paths

# Called in package_<rpm,ipk,deb>.bbclass to get the correct list of configuration files
def get_conffiles(pkg, d):
    pkgdest = d.getVar('PKGDEST')
    root = os.path.join(pkgdest, pkg)
    cwd = os.getcwd()
    os.chdir(root)

    conffiles = d.getVar('CONFFILES_%s' % pkg);
    if conffiles == None:
        conffiles = d.getVar('CONFFILES')
    if conffiles == None:
        conffiles = ""
    conffiles = conffiles.split()
    conf_orig_list = files_from_filevars(conffiles)[0]

    # Remove links and directories from conf_orig_list to get conf_list which only contains normal files
    conf_list = []
    for f in conf_orig_list:
        if os.path.isdir(f):
            continue
        if os.path.islink(f):
            continue
        if not os.path.exists(f):
            continue
        conf_list.append(f)

    # Remove the leading './'
    for i in range(0, len(conf_list)):
        conf_list[i] = conf_list[i][1:]

    os.chdir(cwd)
    return conf_list

def checkbuildpath(file, d):
    tmpdir = d.getVar('TMPDIR')
    with open(file) as f:
        file_content = f.read()
        if tmpdir in file_content:
            return True

    return False

def parse_debugsources_from_dwarfsrcfiles_output(dwarfsrcfiles_output):
    debugfiles = {}

    for line in dwarfsrcfiles_output.splitlines():
        if line.startswith("\t"):
            debugfiles[os.path.normpath(line.split()[0])] = ""

    return debugfiles.keys()

def source_info(file, d, fatal=True):
    import subprocess

    cmd = ["dwarfsrcfiles", file]
    try:
        output = subprocess.check_output(cmd, universal_newlines=True, stderr=subprocess.STDOUT)
        retval = 0
    except subprocess.CalledProcessError as exc:
        output = exc.output
        retval = exc.returncode

    # 255 means a specific file wasn't fully parsed to get the debug file list, which is not a fatal failure
    if retval != 0 and retval != 255:
        msg = "dwarfsrcfiles failed with exit code %s (cmd was %s)%s" % (retval, cmd, ":\n%s" % output if output else "")
        if fatal:
            bb.fatal(msg)
        bb.note(msg)

    debugsources = parse_debugsources_from_dwarfsrcfiles_output(output)

    return list(debugsources)

def splitdebuginfo(file, dvar, debugdir, debuglibdir, debugappend, debugsrcdir, d):
    # Function to split a single file into two components, one is the stripped
    # target system binary, the other contains any debugging information. The
    # two files are linked to reference each other.
    #
    # return a mapping of files:debugsources

    import stat
    import subprocess

    src = file[len(dvar):]
    dest = debuglibdir + os.path.dirname(src) + debugdir + "/" + os.path.basename(src) + debugappend
    debugfile = dvar + dest
    sources = []

    # Split the file...
    bb.utils.mkdirhier(os.path.dirname(debugfile))
    #bb.note("Split %s -> %s" % (file, debugfile))
    # Only store off the hard link reference if we successfully split!

    dvar = d.getVar('PKGD')
    objcopy = d.getVar("OBJCOPY")

    # We ignore kernel modules, we don't generate debug info files.
    if file.find("/lib/modules/") != -1 and file.endswith(".ko"):
        return (file, sources)

    newmode = None
    if not os.access(file, os.W_OK) or os.access(file, os.R_OK):
        origmode = os.stat(file)[stat.ST_MODE]
        newmode = origmode | stat.S_IWRITE | stat.S_IREAD
        os.chmod(file, newmode)

    # We need to extract the debug src information here...
    if debugsrcdir:
        sources = source_info(file, d)

    bb.utils.mkdirhier(os.path.dirname(debugfile))

    subprocess.check_output([objcopy, '--only-keep-debug', file, debugfile], stderr=subprocess.STDOUT)

    # Set the debuglink to have the view of the file path on the target
    subprocess.check_output([objcopy, '--add-gnu-debuglink', debugfile, file], stderr=subprocess.STDOUT)

    if newmode:
        os.chmod(file, origmode)

    return (file, sources)

def splitstaticdebuginfo(file, dvar, debugstaticdir, debugstaticlibdir, debugstaticappend, debugsrcdir, d):
    # Unlike the function above, there is no way to split a static library
    # two components.  So to get similar results we will copy the unmodified
    # static library (containing the debug symbols) into a new directory.
    # We will then strip (preserving symbols) the static library in the
    # typical location.
    #
    # return a mapping of files:debugsources

    import stat
    import shutil

    src = file[len(dvar):]
    dest = debugstaticlibdir + os.path.dirname(src) + debugstaticdir + "/" + os.path.basename(src) + debugstaticappend
    debugfile = dvar + dest
    sources = []

    # Copy the file...
    bb.utils.mkdirhier(os.path.dirname(debugfile))
    #bb.note("Copy %s -> %s" % (file, debugfile))

    dvar = d.getVar('PKGD')

    newmode = None
    if not os.access(file, os.W_OK) or os.access(file, os.R_OK):
        origmode = os.stat(file)[stat.ST_MODE]
        newmode = origmode | stat.S_IWRITE | stat.S_IREAD
        os.chmod(file, newmode)

    # We need to extract the debug src information here...
    if debugsrcdir:
        sources = source_info(file, d)

    bb.utils.mkdirhier(os.path.dirname(debugfile))

    # Copy the unmodified item to the debug directory
    shutil.copy2(file, debugfile)

    if newmode:
        os.chmod(file, origmode)

    return (file, sources)

def copydebugsources(debugsrcdir, sources, d):
    # The debug src information written out to sourcefile is further processed
    # and copied to the destination here.

    import stat
    import subprocess

    if debugsrcdir and sources:
        sourcefile = d.expand("${WORKDIR}/debugsources.list")
        bb.utils.remove(sourcefile)

        # filenames are null-separated - this is an artefact of the previous use
        # of rpm's debugedit, which was writing them out that way, and the code elsewhere
        # is still assuming that.
        debuglistoutput = '\0'.join(sources) + '\0'
        with open(sourcefile, 'a') as sf:
           sf.write(debuglistoutput)

        dvar = d.getVar('PKGD')
        strip = d.getVar("STRIP")
        objcopy = d.getVar("OBJCOPY")
        workdir = d.getVar("WORKDIR")
        workparentdir = os.path.dirname(os.path.dirname(workdir))
        workbasedir = os.path.basename(os.path.dirname(workdir)) + "/" + os.path.basename(workdir)

        # If build path exists in sourcefile, it means toolchain did not use
        # -fdebug-prefix-map to compile
        if checkbuildpath(sourcefile, d):
            localsrc_prefix = workparentdir + "/"
        else:
            localsrc_prefix = "/usr/src/debug/"

        nosuchdir = []
        basepath = dvar
        for p in debugsrcdir.split("/"):
            basepath = basepath + "/" + p
            if not cpath.exists(basepath):
                nosuchdir.append(basepath)
        bb.utils.mkdirhier(basepath)
        cpath.updatecache(basepath)

        # Ignore files from the recipe sysroots (target and native)
        processdebugsrc =  "LC_ALL=C ; sort -z -u '%s' | egrep -v -z '((<internal>|<built-in>)$|/.*recipe-sysroot.*/)' | "
        # We need to ignore files that are not actually ours
        # we do this by only paying attention to items from this package
        processdebugsrc += "fgrep -zw '%s' | "
        # Remove prefix in the source paths
        processdebugsrc += "sed 's#%s##g' | "
        processdebugsrc += "(cd '%s' ; cpio -pd0mlL --no-preserve-owner '%s%s' 2>/dev/null)"

        cmd = processdebugsrc % (sourcefile, workbasedir, localsrc_prefix, workparentdir, dvar, debugsrcdir)
        try:
            subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT)
        except subprocess.CalledProcessError:
            # Can "fail" if internal headers/transient sources are attempted
            pass

        # cpio seems to have a bug with -lL together and symbolic links are just copied, not dereferenced.
        # Work around this by manually finding and copying any symbolic links that made it through.
        cmd = "find %s%s -type l -print0 -delete | sed s#%s%s/##g | (cd '%s' ; cpio -pd0mL --no-preserve-owner '%s%s')" % \
                (dvar, debugsrcdir, dvar, debugsrcdir, workparentdir, dvar, debugsrcdir)
        subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT)

        # The copy by cpio may have resulted in some empty directories!  Remove these
        cmd = "find %s%s -empty -type d -delete" % (dvar, debugsrcdir)
        subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT)

        # Also remove debugsrcdir if its empty
        for p in nosuchdir[::-1]:
            if os.path.exists(p) and not os.listdir(p):
                os.rmdir(p)

#
# Package data handling routines
#

def get_package_mapping (pkg, basepkg, d):
    import oe.packagedata

    data = oe.packagedata.read_subpkgdata(pkg, d)
    key = "PKG_%s" % pkg

    if key in data:
        # Have to avoid undoing the write_extra_pkgs(global_variants...)
        if bb.data.inherits_class('allarch', d) and not d.getVar('MULTILIB_VARIANTS') \
            and data[key] == basepkg:
            return pkg
        return data[key]

    return pkg

def get_package_additional_metadata (pkg_type, d):
    base_key = "PACKAGE_ADD_METADATA"
    for key in ("%s_%s" % (base_key, pkg_type.upper()), base_key):
        if d.getVar(key, False) is None:
            continue
        d.setVarFlag(key, "type", "list")
        if d.getVarFlag(key, "separator") is None:
            d.setVarFlag(key, "separator", "\\n")
        metadata_fields = [field.strip() for field in oe.data.typed_value(key, d)]
        return "\n".join(metadata_fields).strip()

def runtime_mapping_rename (varname, pkg, d):
    #bb.note("%s before: %s" % (varname, d.getVar(varname)))

    new_depends = {}
    deps = bb.utils.explode_dep_versions2(d.getVar(varname) or "")
    for depend in deps:
        new_depend = get_package_mapping(depend, pkg, d)
        new_depends[new_depend] = deps[depend]

    d.setVar(varname, bb.utils.join_deps(new_depends, commasep=False))

    #bb.note("%s after: %s" % (varname, d.getVar(varname)))

#
# Package functions suitable for inclusion in PACKAGEFUNCS
#

python package_get_auto_pr() {
    import oe.prservice
    import re

    # Support per recipe PRSERV_HOST
    pn = d.getVar('PN')
    host = d.getVar("PRSERV_HOST_" + pn)
    if not (host is None):
        d.setVar("PRSERV_HOST", host)

    pkgv = d.getVar("PKGV")

    # PR Server not active, handle AUTOINC
    if not d.getVar('PRSERV_HOST'):
        if 'AUTOINC' in pkgv:
            d.setVar("PKGV", pkgv.replace("AUTOINC", "0"))
        return

    auto_pr = None
    pv = d.getVar("PV")
    version = d.getVar("PRAUTOINX")
    pkgarch = d.getVar("PACKAGE_ARCH")
    checksum = d.getVar("BB_TASKHASH")

    if d.getVar('PRSERV_LOCKDOWN'):
        auto_pr = d.getVar('PRAUTO_' + version + '_' + pkgarch) or d.getVar('PRAUTO_' + version) or None
        if auto_pr is None:
            bb.fatal("Can NOT get PRAUTO from lockdown exported file")
        d.setVar('PRAUTO',str(auto_pr))
        return

    try:
        conn = d.getVar("__PRSERV_CONN")
        if conn is None:
            conn = oe.prservice.prserv_make_conn(d)
        if conn is not None:
            if "AUTOINC" in pkgv:
                srcpv = bb.fetch2.get_srcrev(d)
                base_ver = "AUTOINC-%s" % version[:version.find(srcpv)]
                value = conn.getPR(base_ver, pkgarch, srcpv)
                d.setVar("PKGV", pkgv.replace("AUTOINC", str(value)))

            auto_pr = conn.getPR(version, pkgarch, checksum)
    except Exception as e:
        bb.fatal("Can NOT get PRAUTO, exception %s" %  str(e))
    if auto_pr is None:
        bb.fatal("Can NOT get PRAUTO from remote PR service")
    d.setVar('PRAUTO',str(auto_pr))
}

LOCALEBASEPN ??= "${PN}"

python package_do_split_locales() {
    if (d.getVar('PACKAGE_NO_LOCALE') == '1'):
        bb.debug(1, "package requested not splitting locales")
        return

    packages = (d.getVar('PACKAGES') or "").split()

    datadir = d.getVar('datadir')
    if not datadir:
        bb.note("datadir not defined")
        return

    dvar = d.getVar('PKGD')
    pn = d.getVar('LOCALEBASEPN')

    if pn + '-locale' in packages:
        packages.remove(pn + '-locale')

    localedir = os.path.join(dvar + datadir, 'locale')

    if not cpath.isdir(localedir):
        bb.debug(1, "No locale files in this package")
        return

    locales = os.listdir(localedir)

    summary = d.getVar('SUMMARY') or pn
    description = d.getVar('DESCRIPTION') or ""
    locale_section = d.getVar('LOCALE_SECTION')
    mlprefix = d.getVar('MLPREFIX') or ""
    for l in sorted(locales):
        ln = legitimize_package_name(l)
        pkg = pn + '-locale-' + ln
        packages.append(pkg)
        d.setVar('FILES_' + pkg, os.path.join(datadir, 'locale', l))
        d.setVar('RRECOMMENDS_' + pkg, '%svirtual-locale-%s' % (mlprefix, ln))
        d.setVar('RPROVIDES_' + pkg, '%s-locale %s%s-translation' % (pn, mlprefix, ln))
        d.setVar('SUMMARY_' + pkg, '%s - %s translations' % (summary, l))
        d.setVar('DESCRIPTION_' + pkg, '%s  This package contains language translation files for the %s locale.' % (description, l))
        if locale_section:
            d.setVar('SECTION_' + pkg, locale_section)

    d.setVar('PACKAGES', ' '.join(packages))

    # Disabled by RP 18/06/07
    # Wildcards aren't supported in debian
    # They break with ipkg since glibc-locale* will mean that
    # glibc-localedata-translit* won't install as a dependency
    # for some other package which breaks meta-toolchain
    # Probably breaks since virtual-locale- isn't provided anywhere
    #rdep = (d.getVar('RDEPENDS_%s' % pn) or "").split()
    #rdep.append('%s-locale*' % pn)
    #d.setVar('RDEPENDS_%s' % pn, ' '.join(rdep))
}

python perform_packagecopy () {
    import subprocess

    dest = d.getVar('D')
    dvar = d.getVar('PKGD')

    # Start by package population by taking a copy of the installed
    # files to operate on
    # Preserve sparse files and hard links
    cmd = 'tar -cf - -C %s -p -S . | tar -xf - -C %s' % (dest, dvar)
    subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT)

    # replace RPATHs for the nativesdk binaries, to make them relocatable
    if bb.data.inherits_class('nativesdk', d) or bb.data.inherits_class('cross-canadian', d):
        rpath_replace (dvar, d)
}
perform_packagecopy[cleandirs] = "${PKGD}"
perform_packagecopy[dirs] = "${PKGD}"

# We generate a master list of directories to process, we start by
# seeding this list with reasonable defaults, then load from
# the fs-perms.txt files
python fixup_perms () {
    import pwd, grp

    # init using a string with the same format as a line as documented in
    # the fs-perms.txt file
    # <path> <mode> <uid> <gid> <walk> <fmode> <fuid> <fgid>
    # <path> link <link target>
    #
    # __str__ can be used to print out an entry in the input format
    #
    # if fs_perms_entry.path is None:
    #    an error occurred
    # if fs_perms_entry.link, you can retrieve:
    #    fs_perms_entry.path = path
    #    fs_perms_entry.link = target of link
    # if not fs_perms_entry.link, you can retrieve:
    #    fs_perms_entry.path = path
    #    fs_perms_entry.mode = expected dir mode or None
    #    fs_perms_entry.uid = expected uid or -1
    #    fs_perms_entry.gid = expected gid or -1
    #    fs_perms_entry.walk = 'true' or something else
    #    fs_perms_entry.fmode = expected file mode or None
    #    fs_perms_entry.fuid = expected file uid or -1
    #    fs_perms_entry_fgid = expected file gid or -1
    class fs_perms_entry():
        def __init__(self, line):
            lsplit = line.split()
            if len(lsplit) == 3 and lsplit[1].lower() == "link":
                self._setlink(lsplit[0], lsplit[2])
            elif len(lsplit) == 8:
                self._setdir(lsplit[0], lsplit[1], lsplit[2], lsplit[3], lsplit[4], lsplit[5], lsplit[6], lsplit[7])
            else:
                msg = "Fixup Perms: invalid config line %s" % line
                package_qa_handle_error("perm-config", msg, d)
                self.path = None
                self.link = None

        def _setdir(self, path, mode, uid, gid, walk, fmode, fuid, fgid):
            self.path = os.path.normpath(path)
            self.link = None
            self.mode = self._procmode(mode)
            self.uid  = self._procuid(uid)
            self.gid  = self._procgid(gid)
            self.walk = walk.lower()
            self.fmode = self._procmode(fmode)
            self.fuid = self._procuid(fuid)
            self.fgid = self._procgid(fgid)

        def _setlink(self, path, link):
            self.path = os.path.normpath(path)
            self.link = link

        def _procmode(self, mode):
            if not mode or (mode and mode == "-"):
                return None
            else:
                return int(mode,8)

        # Note uid/gid -1 has special significance in os.lchown
        def _procuid(self, uid):
            if uid is None or uid == "-":
                return -1
            elif uid.isdigit():
                return int(uid)
            else:
                return pwd.getpwnam(uid).pw_uid

        def _procgid(self, gid):
            if gid is None or gid == "-":
                return -1
            elif gid.isdigit():
                return int(gid)
            else:
                return grp.getgrnam(gid).gr_gid

        # Use for debugging the entries
        def __str__(self):
            if self.link:
                return "%s link %s" % (self.path, self.link)
            else:
                mode = "-"
                if self.mode:
                    mode = "0%o" % self.mode
                fmode = "-"
                if self.fmode:
                    fmode = "0%o" % self.fmode
                uid = self._mapugid(self.uid)
                gid = self._mapugid(self.gid)
                fuid = self._mapugid(self.fuid)
                fgid = self._mapugid(self.fgid)
                return "%s %s %s %s %s %s %s %s" % (self.path, mode, uid, gid, self.walk, fmode, fuid, fgid)

        def _mapugid(self, id):
            if id is None or id == -1:
                return "-"
            else:
                return "%d" % id

    # Fix the permission, owner and group of path
    def fix_perms(path, mode, uid, gid, dir):
        if mode and not os.path.islink(path):
            #bb.note("Fixup Perms: chmod 0%o %s" % (mode, dir))
            os.chmod(path, mode)
        # -1 is a special value that means don't change the uid/gid
        # if they are BOTH -1, don't bother to lchown
        if not (uid == -1 and gid == -1):
            #bb.note("Fixup Perms: lchown %d:%d %s" % (uid, gid, dir))
            os.lchown(path, uid, gid)

    # Return a list of configuration files based on either the default
    # files/fs-perms.txt or the contents of FILESYSTEM_PERMS_TABLES
    # paths are resolved via BBPATH
    def get_fs_perms_list(d):
        str = ""
        bbpath = d.getVar('BBPATH')
        fs_perms_tables = d.getVar('FILESYSTEM_PERMS_TABLES') or ""
        for conf_file in fs_perms_tables.split():
            confpath = bb.utils.which(bbpath, conf_file)
            if confpath:
                str += " %s" % bb.utils.which(bbpath, conf_file)
            else:
                bb.warn("cannot find %s specified in FILESYSTEM_PERMS_TABLES" % conf_file)
        return str



    dvar = d.getVar('PKGD')

    fs_perms_table = {}
    fs_link_table = {}

    # By default all of the standard directories specified in
    # bitbake.conf will get 0755 root:root.
    target_path_vars = [    'base_prefix',
                'prefix',
                'exec_prefix',
                'base_bindir',
                'base_sbindir',
                'base_libdir',
                'datadir',
                'sysconfdir',
                'servicedir',
                'sharedstatedir',
                'localstatedir',
                'infodir',
                'mandir',
                'docdir',
                'bindir',
                'sbindir',
                'libexecdir',
                'libdir',
                'includedir',
                'oldincludedir' ]

    for path in target_path_vars:
        dir = d.getVar(path) or ""
        if dir == "":
            continue
        fs_perms_table[dir] = fs_perms_entry(d.expand("%s 0755 root root false - - -" % (dir)))

    # Now we actually load from the configuration files
    for conf in get_fs_perms_list(d).split():
        if not os.path.exists(conf):
            continue
        with open(conf) as f:
            for line in f:
                if line.startswith('#'):
                    continue
                lsplit = line.split()
                if len(lsplit) == 0:
                    continue
                if len(lsplit) != 8 and not (len(lsplit) == 3 and lsplit[1].lower() == "link"):
                    msg = "Fixup perms: %s invalid line: %s" % (conf, line)
                    package_qa_handle_error("perm-line", msg, d)
                    continue
                entry = fs_perms_entry(d.expand(line))
                if entry and entry.path:
                    if entry.link:
                        fs_link_table[entry.path] = entry
                        if entry.path in fs_perms_table:
                            fs_perms_table.pop(entry.path)
                    else:
                        fs_perms_table[entry.path] = entry
                        if entry.path in fs_link_table:
                            fs_link_table.pop(entry.path)

    # Debug -- list out in-memory table
    #for dir in fs_perms_table:
    #    bb.note("Fixup Perms: %s: %s" % (dir, str(fs_perms_table[dir])))
    #for link in fs_link_table:
    #    bb.note("Fixup Perms: %s: %s" % (link, str(fs_link_table[link])))

    # We process links first, so we can go back and fixup directory ownership
    # for any newly created directories
    # Process in sorted order so /run gets created before /run/lock, etc.
    for entry in sorted(fs_link_table.values(), key=lambda x: x.link):
        link = entry.link
        dir = entry.path
        origin = dvar + dir
        if not (cpath.exists(origin) and cpath.isdir(origin) and not cpath.islink(origin)):
            continue

        if link[0] == "/":
            target = dvar + link
            ptarget = link
        else:
            target = os.path.join(os.path.dirname(origin), link)
            ptarget = os.path.join(os.path.dirname(dir), link)
        if os.path.exists(target):
            msg = "Fixup Perms: Unable to correct directory link, target already exists: %s -> %s" % (dir, ptarget)
            package_qa_handle_error("perm-link", msg, d)
            continue

        # Create path to move directory to, move it, and then setup the symlink
        bb.utils.mkdirhier(os.path.dirname(target))
        #bb.note("Fixup Perms: Rename %s -> %s" % (dir, ptarget))
        os.rename(origin, target)
        #bb.note("Fixup Perms: Link %s -> %s" % (dir, link))
        os.symlink(link, origin)

    for dir in fs_perms_table:
        origin = dvar + dir
        if not (cpath.exists(origin) and cpath.isdir(origin)):
            continue

        fix_perms(origin, fs_perms_table[dir].mode, fs_perms_table[dir].uid, fs_perms_table[dir].gid, dir)

        if fs_perms_table[dir].walk == 'true':
            for root, dirs, files in os.walk(origin):
                for dr in dirs:
                    each_dir = os.path.join(root, dr)
                    fix_perms(each_dir, fs_perms_table[dir].mode, fs_perms_table[dir].uid, fs_perms_table[dir].gid, dir)
                for f in files:
                    each_file = os.path.join(root, f)
                    fix_perms(each_file, fs_perms_table[dir].fmode, fs_perms_table[dir].fuid, fs_perms_table[dir].fgid, dir)
}

python split_and_strip_files () {
    import stat, errno
    import subprocess

    dvar = d.getVar('PKGD')
    pn = d.getVar('PN')
    targetos = d.getVar('TARGET_OS')

    oldcwd = os.getcwd()
    os.chdir(dvar)

    # We default to '.debug' style
    if d.getVar('PACKAGE_DEBUG_SPLIT_STYLE') == 'debug-file-directory':
        # Single debug-file-directory style debug info
        debugappend = ".debug"
        debugstaticappend = ""
        debugdir = ""
        debugstaticdir = ""
        debuglibdir = "/usr/lib/debug"
        debugstaticlibdir = "/usr/lib/debug-static"
        debugsrcdir = "/usr/src/debug"
    elif d.getVar('PACKAGE_DEBUG_SPLIT_STYLE') == 'debug-without-src':
        # Original OE-core, a.k.a. ".debug", style debug info, but without sources in /usr/src/debug
        debugappend = ""
        debugstaticappend = ""
        debugdir = "/.debug"
        debugstaticdir = "/.debug-static"
        debuglibdir = ""
        debugstaticlibdir = ""
        debugsrcdir = ""
    elif d.getVar('PACKAGE_DEBUG_SPLIT_STYLE') == 'debug-with-srcpkg':
        debugappend = ""
        debugstaticappend = ""
        debugdir = "/.debug"
        debugstaticdir = "/.debug-static"
        debuglibdir = ""
        debugstaticlibdir = ""
        debugsrcdir = "/usr/src/debug"
    else:
        # Original OE-core, a.k.a. ".debug", style debug info
        debugappend = ""
        debugstaticappend = ""
        debugdir = "/.debug"
        debugstaticdir = "/.debug-static"
        debuglibdir = ""
        debugstaticlibdir = ""
        debugsrcdir = "/usr/src/debug"

    #
    # First lets figure out all of the files we may have to process ... do this only once!
    #
    elffiles = {}
    symlinks = {}
    kernmods = []
    staticlibs = []
    inodes = {}
    libdir = os.path.abspath(dvar + os.sep + d.getVar("libdir"))
    baselibdir = os.path.abspath(dvar + os.sep + d.getVar("base_libdir"))
    skipfiles = (d.getVar("INHIBIT_PACKAGE_STRIP_FILES") or "").split()
    if (d.getVar('INHIBIT_PACKAGE_STRIP') != '1' or \
            d.getVar('INHIBIT_PACKAGE_DEBUG_SPLIT') != '1'):
        checkelf = {}
        checkelflinks = {}
        for root, dirs, files in cpath.walk(dvar):
            for f in files:
                file = os.path.join(root, f)

                # Skip debug files
                if debugappend and file.endswith(debugappend):
                    continue
                if debugdir and debugdir in os.path.dirname(file[len(dvar):]):
                    continue

                if file in skipfiles:
                    continue

                if file.endswith(".ko") and file.find("/lib/modules/") != -1:
                    kernmods.append(file)
                    continue
                if oe.package.is_static_lib(file):
                    staticlibs.append(file)
                    continue

                try:
                    ltarget = cpath.realpath(file, dvar, False)
                    s = cpath.lstat(ltarget)
                except OSError as e:
                    (err, strerror) = e.args
                    if err != errno.ENOENT:
                        raise
                    # Skip broken symlinks
                    continue
                if not s:
                    continue
                # Check its an executable
                if (s[stat.ST_MODE] & stat.S_IXUSR) or (s[stat.ST_MODE] & stat.S_IXGRP) or (s[stat.ST_MODE] & stat.S_IXOTH) \
                        or ((file.startswith(libdir) or file.startswith(baselibdir)) and (".so" in f or ".node" in f)):

                    if cpath.islink(file):
                        checkelflinks[file] = ltarget
                        continue
                    # Use a reference of device ID and inode number to identify files
                    file_reference = "%d_%d" % (s.st_dev, s.st_ino)
                    checkelf[file] = (file, file_reference)

        results = oe.utils.multiprocess_launch(oe.package.is_elf, checkelflinks.values(), d)
        results_map = {}
        for (ltarget, elf_file) in results:
            results_map[ltarget] = elf_file
        for file in checkelflinks:
            ltarget = checkelflinks[file]
            # If it's a symlink, and points to an ELF file, we capture the readlink target
            if results_map[ltarget]:
                target = os.readlink(file)
                #bb.note("Sym: %s (%d)" % (ltarget, results_map[ltarget]))
                symlinks[file] = target

        results = oe.utils.multiprocess_launch(oe.package.is_elf, checkelf.keys(), d)

        # Sort results by file path. This ensures that the files are always
        # processed in the same order, which is important to make sure builds
        # are reproducible when dealing with hardlinks
        results.sort(key=lambda x: x[0])

        for (file, elf_file) in results:
            # It's a file (or hardlink), not a link
            # ...but is it ELF, and is it already stripped?
            if elf_file & 1:
                if elf_file & 2:
                    if 'already-stripped' in (d.getVar('INSANE_SKIP_' + pn) or "").split():
                        bb.note("Skipping file %s from %s for already-stripped QA test" % (file[len(dvar):], pn))
                    else:
                        msg = "File '%s' from %s was already stripped, this will prevent future debugging!" % (file[len(dvar):], pn)
                        package_qa_handle_error("already-stripped", msg, d)
                    continue

                # At this point we have an unstripped elf file. We need to:
                #  a) Make sure any file we strip is not hardlinked to anything else outside this tree
                #  b) Only strip any hardlinked file once (no races)
                #  c) Track any hardlinks between files so that we can reconstruct matching debug file hardlinks

                # Use a reference of device ID and inode number to identify files
                file_reference = checkelf[file][1]
                if file_reference in inodes:
                    os.unlink(file)
                    os.link(inodes[file_reference][0], file)
                    inodes[file_reference].append(file)
                else:
                    inodes[file_reference] = [file]
                    # break hardlink
                    bb.utils.break_hardlinks(file)
                    elffiles[file] = elf_file
                # Modified the file so clear the cache
                cpath.updatecache(file)

    #
    # First lets process debug splitting
    #
    if (d.getVar('INHIBIT_PACKAGE_DEBUG_SPLIT') != '1'):
        results = oe.utils.multiprocess_launch(splitdebuginfo, list(elffiles), d, extraargs=(dvar, debugdir, debuglibdir, debugappend, debugsrcdir, d))

        if debugsrcdir and not targetos.startswith("mingw"):
            if (d.getVar('PACKAGE_DEBUG_STATIC_SPLIT') == '1'):
                results = oe.utils.multiprocess_launch(splitstaticdebuginfo, staticlibs, d, extraargs=(dvar, debugstaticdir, debugstaticlibdir, debugstaticappend, debugsrcdir, d))
            else:
                for file in staticlibs:
                    results.append( (file,source_info(file, d)) )

        sources = set()
        for r in results:
            sources.update(r[1])

        # Hardlink our debug symbols to the other hardlink copies
        for ref in inodes:
            if len(inodes[ref]) == 1:
                continue

            target = inodes[ref][0][len(dvar):]
            for file in inodes[ref][1:]:
                src = file[len(dvar):]
                dest = debuglibdir + os.path.dirname(src) + debugdir + "/" + os.path.basename(target) + debugappend
                fpath = dvar + dest
                ftarget = dvar + debuglibdir + os.path.dirname(target) + debugdir + "/" + os.path.basename(target) + debugappend
                bb.utils.mkdirhier(os.path.dirname(fpath))
                # Only one hardlink of separated debug info file in each directory
                if not os.access(fpath, os.R_OK):
                    #bb.note("Link %s -> %s" % (fpath, ftarget))
                    os.link(ftarget, fpath)

        # Create symlinks for all cases we were able to split symbols
        for file in symlinks:
            src = file[len(dvar):]
            dest = debuglibdir + os.path.dirname(src) + debugdir + "/" + os.path.basename(src) + debugappend
            fpath = dvar + dest
            # Skip it if the target doesn't exist
            try:
                s = os.stat(fpath)
            except OSError as e:
                (err, strerror) = e.args
                if err != errno.ENOENT:
                    raise
                continue

            ltarget = symlinks[file]
            lpath = os.path.dirname(ltarget)
            lbase = os.path.basename(ltarget)
            ftarget = ""
            if lpath and lpath != ".":
                ftarget += lpath + debugdir + "/"
            ftarget += lbase + debugappend
            if lpath.startswith(".."):
                ftarget = os.path.join("..", ftarget)
            bb.utils.mkdirhier(os.path.dirname(fpath))
            #bb.note("Symlink %s -> %s" % (fpath, ftarget))
            os.symlink(ftarget, fpath)

        # Process the debugsrcdir if requested...
        # This copies and places the referenced sources for later debugging...
        copydebugsources(debugsrcdir, sources, d)
    #
    # End of debug splitting
    #

    #
    # Now lets go back over things and strip them
    #
    if (d.getVar('INHIBIT_PACKAGE_STRIP') != '1'):
        strip = d.getVar("STRIP")
        sfiles = []
        for file in elffiles:
            elf_file = int(elffiles[file])
            #bb.note("Strip %s" % file)
            sfiles.append((file, elf_file, strip))
        for f in kernmods:
            sfiles.append((f, 16, strip))
        if (d.getVar('PACKAGE_STRIP_STATIC') == '1' or d.getVar('PACKAGE_DEBUG_STATIC_SPLIT') == '1'):
            for f in staticlibs:
                sfiles.append((f, 16, strip))

        oe.utils.multiprocess_launch(oe.package.runstrip, sfiles, d)

    #
    # End of strip
    #
    os.chdir(oldcwd)
}

python populate_packages () {
    import glob, re

    workdir = d.getVar('WORKDIR')
    outdir = d.getVar('DEPLOY_DIR')
    dvar = d.getVar('PKGD')
    packages = d.getVar('PACKAGES').split()
    pn = d.getVar('PN')

    bb.utils.mkdirhier(outdir)
    os.chdir(dvar)
    
    autodebug = not (d.getVar("NOAUTOPACKAGEDEBUG") or False)

    split_source_package = (d.getVar('PACKAGE_DEBUG_SPLIT_STYLE') == 'debug-with-srcpkg')

    # If debug-with-srcpkg mode is enabled then add the source package if it
    # doesn't exist and add the source file contents to the source package.
    if split_source_package:
        src_package_name = ('%s-src' % d.getVar('PN'))
        if not src_package_name in packages:
            packages.append(src_package_name)
        d.setVar('FILES_%s' % src_package_name, '/usr/src/debug')

    # Sanity check PACKAGES for duplicates
    # Sanity should be moved to sanity.bbclass once we have the infrastructure
    package_dict = {}

    for i, pkg in enumerate(packages):
        if pkg in package_dict:
            msg = "%s is listed in PACKAGES multiple times, this leads to packaging errors." % pkg
            package_qa_handle_error("packages-list", msg, d)
        # Ensure the source package gets the chance to pick up the source files
        # before the debug package by ordering it first in PACKAGES. Whether it
        # actually picks up any source files is controlled by
        # PACKAGE_DEBUG_SPLIT_STYLE.
        elif pkg.endswith("-src"):
            package_dict[pkg] = (10, i)
        elif autodebug and pkg.endswith("-dbg"):
            package_dict[pkg] = (30, i)
        else:
            package_dict[pkg] = (50, i)
    packages = sorted(package_dict.keys(), key=package_dict.get)
    d.setVar('PACKAGES', ' '.join(packages))
    pkgdest = d.getVar('PKGDEST')

    seen = []

    # os.mkdir masks the permissions with umask so we have to unset it first
    oldumask = os.umask(0)

    debug = []
    for root, dirs, files in cpath.walk(dvar):
        dir = root[len(dvar):]
        if not dir:
            dir = os.sep
        for f in (files + dirs):
            path = "." + os.path.join(dir, f)
            if "/.debug/" in path or "/.debug-static/" in path or path.endswith("/.debug"):
                debug.append(path)

    for pkg in packages:
        root = os.path.join(pkgdest, pkg)
        bb.utils.mkdirhier(root)

        filesvar = d.getVar('FILES_%s' % pkg) or ""
        if "//" in filesvar:
            msg = "FILES variable for package %s contains '//' which is invalid. Attempting to fix this but you should correct the metadata.\n" % pkg
            package_qa_handle_error("files-invalid", msg, d)
            filesvar.replace("//", "/")

        origfiles = filesvar.split()
        files, symlink_paths = files_from_filevars(origfiles)

        if autodebug and pkg.endswith("-dbg"):
            files.extend(debug)

        for file in files:
            if (not cpath.islink(file)) and (not cpath.exists(file)):
                continue
            if file in seen:
                continue
            seen.append(file)

            def mkdir(src, dest, p):
                src = os.path.join(src, p)
                dest = os.path.join(dest, p)
                fstat = cpath.stat(src)
                os.mkdir(dest)
                os.chmod(dest, fstat.st_mode)
                os.chown(dest, fstat.st_uid, fstat.st_gid)
                if p not in seen:
                    seen.append(p)
                cpath.updatecache(dest)

            def mkdir_recurse(src, dest, paths):
                if cpath.exists(dest + '/' + paths):
                    return
                while paths.startswith("./"):
                    paths = paths[2:]
                p = "."
                for c in paths.split("/"):
                    p = os.path.join(p, c)
                    if not cpath.exists(os.path.join(dest, p)):
                        mkdir(src, dest, p)

            if cpath.isdir(file) and not cpath.islink(file):
                mkdir_recurse(dvar, root, file)
                continue

            mkdir_recurse(dvar, root, os.path.dirname(file))
            fpath = os.path.join(root,file)
            if not cpath.islink(file):
                os.link(file, fpath)
                continue
            ret = bb.utils.copyfile(file, fpath)
            if ret is False or ret == 0:
                bb.fatal("File population failed")

        # Check if symlink paths exist
        for file in symlink_paths:
            if not os.path.exists(os.path.join(root,file)):
                bb.fatal("File '%s' cannot be packaged into '%s' because its "
                         "parent directory structure does not exist. One of "
                         "its parent directories is a symlink whose target "
                         "directory is not included in the package." %
                         (file, pkg))

    os.umask(oldumask)
    os.chdir(workdir)

    # Handle LICENSE_EXCLUSION
    package_list = []
    for pkg in packages:
        licenses = d.getVar('LICENSE_EXCLUSION-' + pkg)
        if licenses:
            msg = "Excluding %s from packaging as it has incompatible license(s): %s" % (pkg, licenses)
            package_qa_handle_error("incompatible-license", msg, d)
        else:
            package_list.append(pkg)
    d.setVar('PACKAGES', ' '.join(package_list))

    unshipped = []
    for root, dirs, files in cpath.walk(dvar):
        dir = root[len(dvar):]
        if not dir:
            dir = os.sep
        for f in (files + dirs):
            path = os.path.join(dir, f)
            if ('.' + path) not in seen:
                unshipped.append(path)

    if unshipped != []:
        msg = pn + ": Files/directories were installed but not shipped in any package:"
        if "installed-vs-shipped" in (d.getVar('INSANE_SKIP_' + pn) or "").split():
            bb.note("Package %s skipping QA tests: installed-vs-shipped" % pn)
        else:
            for f in unshipped:
                msg = msg + "\n  " + f
            msg = msg + "\nPlease set FILES such that these items are packaged. Alternatively if they are unneeded, avoid installing them or delete them within do_install.\n"
            msg = msg + "%s: %d installed and not shipped files." % (pn, len(unshipped))
            package_qa_handle_error("installed-vs-shipped", msg, d)
}
populate_packages[dirs] = "${D}"

python package_fixsymlinks () {
    import errno
    pkgdest = d.getVar('PKGDEST')
    packages = d.getVar("PACKAGES", False).split()

    dangling_links = {}
    pkg_files = {}
    for pkg in packages:
        dangling_links[pkg] = []
        pkg_files[pkg] = []
        inst_root = os.path.join(pkgdest, pkg)
        for path in pkgfiles[pkg]:
                rpath = path[len(inst_root):]
                pkg_files[pkg].append(rpath)
                rtarget = cpath.realpath(path, inst_root, True, assume_dir = True)
                if not cpath.lexists(rtarget):
                    dangling_links[pkg].append(os.path.normpath(rtarget[len(inst_root):]))

    newrdepends = {}
    for pkg in dangling_links:
        for l in dangling_links[pkg]:
            found = False
            bb.debug(1, "%s contains dangling link %s" % (pkg, l))
            for p in packages:
                if l in pkg_files[p]:
                        found = True
                        bb.debug(1, "target found in %s" % p)
                        if p == pkg:
                            break
                        if pkg not in newrdepends:
                            newrdepends[pkg] = []
                        newrdepends[pkg].append(p)
                        break
            if found == False:
                bb.note("%s contains dangling symlink to %s" % (pkg, l))

    for pkg in newrdepends:
        rdepends = bb.utils.explode_dep_versions2(d.getVar('RDEPENDS_' + pkg) or "")
        for p in newrdepends[pkg]:
            if p not in rdepends:
                rdepends[p] = []
        d.setVar('RDEPENDS_' + pkg, bb.utils.join_deps(rdepends, commasep=False))
}


python package_package_name_hook() {
    """
    A package_name_hook function can be used to rewrite the package names by
    changing PKG.  For an example, see debian.bbclass.
    """
    pass
}

EXPORT_FUNCTIONS package_name_hook


PKGDESTWORK = "${WORKDIR}/pkgdata"

PKGDATA_VARS = "PN PE PV PR PKGE PKGV PKGR LICENSE DESCRIPTION SUMMARY RDEPENDS RPROVIDES RRECOMMENDS RSUGGESTS RREPLACES RCONFLICTS SECTION PKG ALLOW_EMPTY FILES CONFFILES FILES_INFO pkg_postinst pkg_postrm pkg_preinst pkg_prerm"

python emit_pkgdata() {
    from glob import glob
    import json

    def process_postinst_on_target(pkg, mlprefix):
        pkgval = d.getVar('PKG_%s' % pkg)
        if pkgval is None:
            pkgval = pkg

        defer_fragment = """
if [ -n "$D" ]; then
    $INTERCEPT_DIR/postinst_intercept delay_to_first_boot %s mlprefix=%s
    exit 0
fi
""" % (pkgval, mlprefix)

        postinst = d.getVar('pkg_postinst_%s' % pkg)
        postinst_ontarget = d.getVar('pkg_postinst_ontarget_%s' % pkg)

        if postinst_ontarget:
            bb.debug(1, 'adding deferred pkg_postinst_ontarget() to pkg_postinst() for %s' % pkg)
            if not postinst:
                postinst = '#!/bin/sh\n'
            postinst += defer_fragment
            postinst += postinst_ontarget
            d.setVar('pkg_postinst_%s' % pkg, postinst)

    def add_set_e_to_scriptlets(pkg):
        for scriptlet_name in ('pkg_preinst', 'pkg_postinst', 'pkg_prerm', 'pkg_postrm'):
            scriptlet = d.getVar('%s_%s' % (scriptlet_name, pkg))
            if scriptlet:
                scriptlet_split = scriptlet.split('\n')
                if scriptlet_split[0].startswith("#!"):
                    scriptlet = scriptlet_split[0] + "\nset -e\n" + "\n".join(scriptlet_split[1:])
                else:
                    scriptlet = "set -e\n" + "\n".join(scriptlet_split[0:])
            d.setVar('%s_%s' % (scriptlet_name, pkg), scriptlet)

    def write_if_exists(f, pkg, var):
        def encode(str):
            import codecs
            c = codecs.getencoder("unicode_escape")
            return c(str)[0].decode("latin1")

        val = d.getVar('%s_%s' % (var, pkg))
        if val:
            f.write('%s_%s: %s\n' % (var, pkg, encode(val)))
            return val
        val = d.getVar('%s' % (var))
        if val:
            f.write('%s: %s\n' % (var, encode(val)))
        return val

    def write_extra_pkgs(variants, pn, packages, pkgdatadir):
        for variant in variants:
            with open("%s/%s-%s" % (pkgdatadir, variant, pn), 'w') as fd:
                fd.write("PACKAGES: %s\n" % ' '.join(
                            map(lambda pkg: '%s-%s' % (variant, pkg), packages.split())))

    def write_extra_runtime_pkgs(variants, packages, pkgdatadir):
        for variant in variants:
            for pkg in packages.split():
                ml_pkg = "%s-%s" % (variant, pkg)
                subdata_file = "%s/runtime/%s" % (pkgdatadir, ml_pkg)
                with open(subdata_file, 'w') as fd:
                    fd.write("PKG_%s: %s" % (ml_pkg, pkg))

    packages = d.getVar('PACKAGES')
    pkgdest = d.getVar('PKGDEST')
    pkgdatadir = d.getVar('PKGDESTWORK')

    data_file = pkgdatadir + d.expand("/${PN}")
    with open(data_file, 'w') as fd:
        fd.write("PACKAGES: %s\n" % packages)

    pn = d.getVar('PN')
    global_variants = (d.getVar('MULTILIB_GLOBAL_VARIANTS') or "").split()
    variants = (d.getVar('MULTILIB_VARIANTS') or "").split()

    if bb.data.inherits_class('kernel', d) or bb.data.inherits_class('module-base', d):
        write_extra_pkgs(variants, pn, packages, pkgdatadir)

    if bb.data.inherits_class('allarch', d) and not variants \
        and not bb.data.inherits_class('packagegroup', d):
        write_extra_pkgs(global_variants, pn, packages, pkgdatadir)

    workdir = d.getVar('WORKDIR')

    for pkg in packages.split():
        pkgval = d.getVar('PKG_%s' % pkg)
        if pkgval is None:
            pkgval = pkg
            d.setVar('PKG_%s' % pkg, pkg)

        pkgdestpkg = os.path.join(pkgdest, pkg)
        files = {}
        total_size = 0
        seen = set()
        for f in pkgfiles[pkg]:
            relpth = os.path.relpath(f, pkgdestpkg)
            fstat = os.lstat(f)
            files[os.sep + relpth] = fstat.st_size
            if fstat.st_ino not in seen:
                seen.add(fstat.st_ino)
                total_size += fstat.st_size
        d.setVar('FILES_INFO', json.dumps(files, sort_keys=True))

        process_postinst_on_target(pkg, d.getVar("MLPREFIX"))
        add_set_e_to_scriptlets(pkg)

        subdata_file = pkgdatadir + "/runtime/%s" % pkg
        with open(subdata_file, 'w') as sf:
            for var in (d.getVar('PKGDATA_VARS') or "").split():
                val = write_if_exists(sf, pkg, var)

            write_if_exists(sf, pkg, 'FILERPROVIDESFLIST')
            for dfile in (d.getVar('FILERPROVIDESFLIST_' + pkg) or "").split():
                write_if_exists(sf, pkg, 'FILERPROVIDES_' + dfile)

            write_if_exists(sf, pkg, 'FILERDEPENDSFLIST')
            for dfile in (d.getVar('FILERDEPENDSFLIST_' + pkg) or "").split():
                write_if_exists(sf, pkg, 'FILERDEPENDS_' + dfile)

            sf.write('%s_%s: %d\n' % ('PKGSIZE', pkg, total_size))

        # Symlinks needed for rprovides lookup
        rprov = d.getVar('RPROVIDES_%s' % pkg) or d.getVar('RPROVIDES')
        if rprov:
            for p in rprov.strip().split():
                subdata_sym = pkgdatadir + "/runtime-rprovides/%s/%s" % (p, pkg)
                bb.utils.mkdirhier(os.path.dirname(subdata_sym))
                oe.path.symlink("../../runtime/%s" % pkg, subdata_sym, True)

        allow_empty = d.getVar('ALLOW_EMPTY_%s' % pkg)
        if not allow_empty:
            allow_empty = d.getVar('ALLOW_EMPTY')
        root = "%s/%s" % (pkgdest, pkg)
        os.chdir(root)
        g = glob('*')
        if g or allow_empty == "1":
            # Symlinks needed for reverse lookups (from the final package name)
            subdata_sym = pkgdatadir + "/runtime-reverse/%s" % pkgval
            oe.path.symlink("../runtime/%s" % pkg, subdata_sym, True)

            packagedfile = pkgdatadir + '/runtime/%s.packaged' % pkg
            open(packagedfile, 'w').close()

    if bb.data.inherits_class('kernel', d) or bb.data.inherits_class('module-base', d):
        write_extra_runtime_pkgs(variants, packages, pkgdatadir)

    if bb.data.inherits_class('allarch', d) and not variants \
        and not bb.data.inherits_class('packagegroup', d):
        write_extra_runtime_pkgs(global_variants, packages, pkgdatadir)

}
emit_pkgdata[dirs] = "${PKGDESTWORK}/runtime ${PKGDESTWORK}/runtime-reverse ${PKGDESTWORK}/runtime-rprovides"

ldconfig_postinst_fragment() {
if [ x"$D" = "x" ]; then
	if [ -x /sbin/ldconfig ]; then /sbin/ldconfig ; fi
fi
}

RPMDEPS = "${STAGING_LIBDIR_NATIVE}/rpm/rpmdeps --alldeps"

# Collect perfile run-time dependency metadata
# Output:
#  FILERPROVIDESFLIST_pkg - list of all files w/ deps
#  FILERPROVIDES_filepath_pkg - per file dep
#
#  FILERDEPENDSFLIST_pkg - list of all files w/ deps
#  FILERDEPENDS_filepath_pkg - per file dep

python package_do_filedeps() {
    if d.getVar('SKIP_FILEDEPS') == '1':
        return

    pkgdest = d.getVar('PKGDEST')
    packages = d.getVar('PACKAGES')
    rpmdeps = d.getVar('RPMDEPS')

    def chunks(files, n):
        return [files[i:i+n] for i in range(0, len(files), n)]

    pkglist = []
    for pkg in packages.split():
        if d.getVar('SKIP_FILEDEPS_' + pkg) == '1':
            continue
        if pkg.endswith('-dbg') or pkg.endswith('-doc') or pkg.find('-locale-') != -1 or pkg.find('-localedata-') != -1 or pkg.find('-gconv-') != -1 or pkg.find('-charmap-') != -1 or pkg.startswith('kernel-module-') or pkg.endswith('-src'):
            continue
        for files in chunks(pkgfiles[pkg], 100):
            pkglist.append((pkg, files, rpmdeps, pkgdest))

    processed = oe.utils.multiprocess_launch(oe.package.filedeprunner, pkglist, d)

    provides_files = {}
    requires_files = {}

    for result in processed:
        (pkg, provides, requires) = result

        if pkg not in provides_files:
            provides_files[pkg] = []
        if pkg not in requires_files:
            requires_files[pkg] = []

        for file in sorted(provides):
            provides_files[pkg].append(file)
            key = "FILERPROVIDES_" + file + "_" + pkg
            d.appendVar(key, " " + " ".join(provides[file]))

        for file in sorted(requires):
            requires_files[pkg].append(file)
            key = "FILERDEPENDS_" + file + "_" + pkg
            d.appendVar(key, " " + " ".join(requires[file]))

    for pkg in requires_files:
        d.setVar("FILERDEPENDSFLIST_" + pkg, " ".join(requires_files[pkg]))
    for pkg in provides_files:
        d.setVar("FILERPROVIDESFLIST_" + pkg, " ".join(provides_files[pkg]))
}

SHLIBSDIRS = "${WORKDIR_PKGDATA}/${MLPREFIX}shlibs2"
SHLIBSWORKDIR = "${PKGDESTWORK}/${MLPREFIX}shlibs2"

python package_do_shlibs() {
    import itertools
    import re, pipes
    import subprocess

    exclude_shlibs = d.getVar('EXCLUDE_FROM_SHLIBS', False)
    if exclude_shlibs:
        bb.note("not generating shlibs")
        return

    lib_re = re.compile(r"^.*\.so")
    libdir_re = re.compile(r".*/%s$" % d.getVar('baselib'))

    packages = d.getVar('PACKAGES')

    shlib_pkgs = []
    exclusion_list = d.getVar("EXCLUDE_PACKAGES_FROM_SHLIBS")
    if exclusion_list:
        for pkg in packages.split():
            if pkg not in exclusion_list.split():
                shlib_pkgs.append(pkg)
            else:
                bb.note("not generating shlibs for %s" % pkg)
    else:
        shlib_pkgs = packages.split()

    targetos = d.getVar('TARGET_OS')

    workdir = d.getVar('WORKDIR')

    ver = d.getVar('PKGV')
    if not ver:
        msg = "PKGV not defined"
        package_qa_handle_error("pkgv-undefined", msg, d)
        return

    pkgdest = d.getVar('PKGDEST')

    shlibswork_dir = d.getVar('SHLIBSWORKDIR')

    def linux_so(file, pkg, pkgver, d):
        needs_ldconfig = False
        needed = set()
        sonames = set()
        renames = []
        ldir = os.path.dirname(file).replace(pkgdest + "/" + pkg, '')
        cmd = d.getVar('OBJDUMP') + " -p " + pipes.quote(file) + " 2>/dev/null"
        fd = os.popen(cmd)
        lines = fd.readlines()
        fd.close()
        rpath = tuple()
        for l in lines:
            m = re.match(r"\s+RPATH\s+([^\s]*)", l)
            if m:
                rpaths = m.group(1).replace("$ORIGIN", ldir).split(":")
                rpath = tuple(map(os.path.normpath, rpaths))
        for l in lines:
            m = re.match(r"\s+NEEDED\s+([^\s]*)", l)
            if m:
                dep = m.group(1)
                if dep not in needed:
                    needed.add((dep, file, rpath))
            m = re.match(r"\s+SONAME\s+([^\s]*)", l)
            if m:
                this_soname = m.group(1)
                prov = (this_soname, ldir, pkgver)
                if not prov in sonames:
                    # if library is private (only used by package) then do not build shlib for it
                    import fnmatch
                    if not private_libs or len([i for i in private_libs if fnmatch.fnmatch(this_soname, i)]) == 0:
                        sonames.add(prov)
                if libdir_re.match(os.path.dirname(file)):
                    needs_ldconfig = True
                if snap_symlinks and (os.path.basename(file) != this_soname):
                    renames.append((file, os.path.join(os.path.dirname(file), this_soname)))
        return (needs_ldconfig, needed, sonames, renames)

    def darwin_so(file, needed, sonames, renames, pkgver):
        if not os.path.exists(file):
            return
        ldir = os.path.dirname(file).replace(pkgdest + "/" + pkg, '')

        def get_combinations(base):
            #
            # Given a base library name, find all combinations of this split by "." and "-"
            #
            combos = []
            options = base.split(".")
            for i in range(1, len(options) + 1):
                combos.append(".".join(options[0:i]))
            options = base.split("-")
            for i in range(1, len(options) + 1):
                combos.append("-".join(options[0:i]))
            return combos

        if (file.endswith('.dylib') or file.endswith('.so')) and not pkg.endswith('-dev') and not pkg.endswith('-dbg') and not pkg.endswith('-src'):
            # Drop suffix
            name = os.path.basename(file).rsplit(".",1)[0]
            # Find all combinations
            combos = get_combinations(name)
            for combo in combos:
                if not combo in sonames:
                    prov = (combo, ldir, pkgver)
                    sonames.add(prov)
        if file.endswith('.dylib') or file.endswith('.so'):
            rpath = []
            p = subprocess.Popen([d.expand("${HOST_PREFIX}otool"), '-l', file], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
            out, err = p.communicate()
            # If returned successfully, process stdout for results
            if p.returncode == 0:
                for l in out.split("\n"):
                    l = l.strip()
                    if l.startswith('path '):
                        rpath.append(l.split()[1])

        p = subprocess.Popen([d.expand("${HOST_PREFIX}otool"), '-L', file], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        out, err = p.communicate()
        # If returned successfully, process stdout for results
        if p.returncode == 0:
            for l in out.split("\n"):
                l = l.strip()
                if not l or l.endswith(":"):
                    continue
                if "is not an object file" in l:
                    continue
                name = os.path.basename(l.split()[0]).rsplit(".", 1)[0]
                if name and name not in needed[pkg]:
                     needed[pkg].add((name, file, tuple()))

    def mingw_dll(file, needed, sonames, renames, pkgver):
        if not os.path.exists(file):
            return

        if file.endswith(".dll"):
            # assume all dlls are shared objects provided by the package
            sonames.add((os.path.basename(file), os.path.dirname(file).replace(pkgdest + "/" + pkg, ''), pkgver))

        if (file.endswith(".dll") or file.endswith(".exe")):
            # use objdump to search for "DLL Name: .*\.dll"
            p = subprocess.Popen([d.expand("${HOST_PREFIX}objdump"), "-p", file], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
            out, err = p.communicate()
            # process the output, grabbing all .dll names
            if p.returncode == 0:
                for m in re.finditer(r"DLL Name: (.*?\.dll)$", out.decode(), re.MULTILINE | re.IGNORECASE):
                    dllname = m.group(1)
                    if dllname:
                        needed[pkg].add((dllname, file, tuple()))

    if d.getVar('PACKAGE_SNAP_LIB_SYMLINKS') == "1":
        snap_symlinks = True
    else:
        snap_symlinks = False

    needed = {}

    shlib_provider = oe.package.read_shlib_providers(d)

    for pkg in shlib_pkgs:
        private_libs = d.getVar('PRIVATE_LIBS_' + pkg) or d.getVar('PRIVATE_LIBS') or ""
        private_libs = private_libs.split()
        needs_ldconfig = False
        bb.debug(2, "calculating shlib provides for %s" % pkg)

        pkgver = d.getVar('PKGV_' + pkg)
        if not pkgver:
            pkgver = d.getVar('PV_' + pkg)
        if not pkgver:
            pkgver = ver

        needed[pkg] = set()
        sonames = set()
        renames = []
        linuxlist = []
        for file in pkgfiles[pkg]:
                soname = None
                if cpath.islink(file):
                    continue
                if targetos == "darwin" or targetos == "darwin8":
                    darwin_so(file, needed, sonames, renames, pkgver)
                elif targetos.startswith("mingw"):
                    mingw_dll(file, needed, sonames, renames, pkgver)
                elif os.access(file, os.X_OK) or lib_re.match(file):
                    linuxlist.append(file)

        if linuxlist:
            results = oe.utils.multiprocess_launch(linux_so, linuxlist, d, extraargs=(pkg, pkgver, d))
            for r in results:
                ldconfig = r[0]
                needed[pkg] |= r[1]
                sonames |= r[2]
                renames.extend(r[3])
                needs_ldconfig = needs_ldconfig or ldconfig

        for (old, new) in renames:
            bb.note("Renaming %s to %s" % (old, new))
            os.rename(old, new)
            pkgfiles[pkg].remove(old)

        shlibs_file = os.path.join(shlibswork_dir, pkg + ".list")
        if len(sonames):
            with open(shlibs_file, 'w') as fd:
                for s in sonames:
                    if s[0] in shlib_provider and s[1] in shlib_provider[s[0]]:
                        (old_pkg, old_pkgver) = shlib_provider[s[0]][s[1]]
                        if old_pkg != pkg:
                            bb.warn('%s-%s was registered as shlib provider for %s, changing it to %s-%s because it was built later' % (old_pkg, old_pkgver, s[0], pkg, pkgver))
                    bb.debug(1, 'registering %s-%s as shlib provider for %s' % (pkg, pkgver, s[0]))
                    fd.write(s[0] + ':' + s[1] + ':' + s[2] + '\n')
                    if s[0] not in shlib_provider:
                        shlib_provider[s[0]] = {}
                    shlib_provider[s[0]][s[1]] = (pkg, pkgver)
        if needs_ldconfig:
            bb.debug(1, 'adding ldconfig call to postinst for %s' % pkg)
            postinst = d.getVar('pkg_postinst_%s' % pkg)
            if not postinst:
                postinst = '#!/bin/sh\n'
            postinst += d.getVar('ldconfig_postinst_fragment')
            d.setVar('pkg_postinst_%s' % pkg, postinst)
        bb.debug(1, 'LIBNAMES: pkg %s sonames %s' % (pkg, sonames))

    assumed_libs = d.getVar('ASSUME_SHLIBS')
    if assumed_libs:
        libdir = d.getVar("libdir")
        for e in assumed_libs.split():
            l, dep_pkg = e.split(":")
            lib_ver = None
            dep_pkg = dep_pkg.rsplit("_", 1)
            if len(dep_pkg) == 2:
                lib_ver = dep_pkg[1]
            dep_pkg = dep_pkg[0]
            if l not in shlib_provider:
                shlib_provider[l] = {}
            shlib_provider[l][libdir] = (dep_pkg, lib_ver)

    libsearchpath = [d.getVar('libdir'), d.getVar('base_libdir')]

    for pkg in shlib_pkgs:
        bb.debug(2, "calculating shlib requirements for %s" % pkg)

        private_libs = d.getVar('PRIVATE_LIBS_' + pkg) or d.getVar('PRIVATE_LIBS') or ""
        private_libs = private_libs.split()

        deps = list()
        for n in needed[pkg]:
            # if n is in private libraries, don't try to search provider for it
            # this could cause problem in case some abc.bb provides private
            # /opt/abc/lib/libfoo.so.1 and contains /usr/bin/abc depending on system library libfoo.so.1
            # but skipping it is still better alternative than providing own
            # version and then adding runtime dependency for the same system library
            import fnmatch
            if private_libs and len([i for i in private_libs if fnmatch.fnmatch(n[0], i)]) > 0:
                bb.debug(2, '%s: Dependency %s covered by PRIVATE_LIBS' % (pkg, n[0]))
                continue
            if n[0] in shlib_provider.keys():
                shlib_provider_map = shlib_provider[n[0]]
                matches = set()
                for p in itertools.chain(list(n[2]), sorted(shlib_provider_map.keys()), libsearchpath):
                    if p in shlib_provider_map:
                        matches.add(p)
                if len(matches) > 1:
                    matchpkgs = ', '.join([shlib_provider_map[match][0] for match in matches])
                    bb.error("%s: Multiple shlib providers for %s: %s (used by files: %s)" % (pkg, n[0], matchpkgs, n[1]))
                elif len(matches) == 1:
                    (dep_pkg, ver_needed) = shlib_provider_map[matches.pop()]

                    bb.debug(2, '%s: Dependency %s requires package %s (used by files: %s)' % (pkg, n[0], dep_pkg, n[1]))

                    if dep_pkg == pkg:
                        continue

                    if ver_needed:
                        dep = "%s (>= %s)" % (dep_pkg, ver_needed)
                    else:
                        dep = dep_pkg
                    if not dep in deps:
                        deps.append(dep)
                    continue
            bb.note("Couldn't find shared library provider for %s, used by files: %s" % (n[0], n[1]))

        deps_file = os.path.join(pkgdest, pkg + ".shlibdeps")
        if os.path.exists(deps_file):
            os.remove(deps_file)
        if deps:
            with open(deps_file, 'w') as fd:
                for dep in sorted(deps):
                    fd.write(dep + '\n')
}

python package_do_pkgconfig () {
    import re

    packages = d.getVar('PACKAGES')
    workdir = d.getVar('WORKDIR')
    pkgdest = d.getVar('PKGDEST')

    shlibs_dirs = d.getVar('SHLIBSDIRS').split()
    shlibswork_dir = d.getVar('SHLIBSWORKDIR')

    pc_re = re.compile(r'(.*)\.pc$')
    var_re = re.compile(r'(.*)=(.*)')
    field_re = re.compile(r'(.*): (.*)')

    pkgconfig_provided = {}
    pkgconfig_needed = {}
    for pkg in packages.split():
        pkgconfig_provided[pkg] = []
        pkgconfig_needed[pkg] = []
        for file in pkgfiles[pkg]:
                m = pc_re.match(file)
                if m:
                    pd = bb.data.init()
                    name = m.group(1)
                    pkgconfig_provided[pkg].append(name)
                    if not os.access(file, os.R_OK):
                        continue
                    with open(file, 'r') as f:
                        lines = f.readlines()
                    for l in lines:
                        m = var_re.match(l)
                        if m:
                            name = m.group(1)
                            val = m.group(2)
                            pd.setVar(name, pd.expand(val))
                            continue
                        m = field_re.match(l)
                        if m:
                            hdr = m.group(1)
                            exp = pd.expand(m.group(2))
                            if hdr == 'Requires':
                                pkgconfig_needed[pkg] += exp.replace(',', ' ').split()

    for pkg in packages.split():
        pkgs_file = os.path.join(shlibswork_dir, pkg + ".pclist")
        if pkgconfig_provided[pkg] != []:
            with open(pkgs_file, 'w') as f:
                for p in pkgconfig_provided[pkg]:
                    f.write('%s\n' % p)

    # Go from least to most specific since the last one found wins
    for dir in reversed(shlibs_dirs):
        if not os.path.exists(dir):
            continue
        for file in sorted(os.listdir(dir)):
            m = re.match(r'^(.*)\.pclist$', file)
            if m:
                pkg = m.group(1)
                with open(os.path.join(dir, file)) as fd:
                    lines = fd.readlines()
                pkgconfig_provided[pkg] = []
                for l in lines:
                    pkgconfig_provided[pkg].append(l.rstrip())

    for pkg in packages.split():
        deps = []
        for n in pkgconfig_needed[pkg]:
            found = False
            for k in pkgconfig_provided.keys():
                if n in pkgconfig_provided[k]:
                    if k != pkg and not (k in deps):
                        deps.append(k)
                    found = True
            if found == False:
                bb.note("couldn't find pkgconfig module '%s' in any package" % n)
        deps_file = os.path.join(pkgdest, pkg + ".pcdeps")
        if len(deps):
            with open(deps_file, 'w') as fd:
                for dep in deps:
                    fd.write(dep + '\n')
}

def read_libdep_files(d):
    pkglibdeps = {}
    packages = d.getVar('PACKAGES').split()
    for pkg in packages:
        pkglibdeps[pkg] = {}
        for extension in ".shlibdeps", ".pcdeps", ".clilibdeps":
            depsfile = d.expand("${PKGDEST}/" + pkg + extension)
            if os.access(depsfile, os.R_OK):
                with open(depsfile) as fd:
                    lines = fd.readlines()
                for l in lines:
                    l.rstrip()
                    deps = bb.utils.explode_dep_versions2(l)
                    for dep in deps:
                        if not dep in pkglibdeps[pkg]:
                            pkglibdeps[pkg][dep] = deps[dep]
    return pkglibdeps

python read_shlibdeps () {
    pkglibdeps = read_libdep_files(d)

    packages = d.getVar('PACKAGES').split()
    for pkg in packages:
        rdepends = bb.utils.explode_dep_versions2(d.getVar('RDEPENDS_' + pkg) or "")
        for dep in sorted(pkglibdeps[pkg]):
            # Add the dep if it's not already there, or if no comparison is set
            if dep not in rdepends:
                rdepends[dep] = []
            for v in pkglibdeps[pkg][dep]:
                if v not in rdepends[dep]:
                    rdepends[dep].append(v)
        d.setVar('RDEPENDS_' + pkg, bb.utils.join_deps(rdepends, commasep=False))
}

python package_depchains() {
    """
    For a given set of prefix and postfix modifiers, make those packages
    RRECOMMENDS on the corresponding packages for its RDEPENDS.

    Example:  If package A depends upon package B, and A's .bb emits an
    A-dev package, this would make A-dev Recommends: B-dev.

    If only one of a given suffix is specified, it will take the RRECOMMENDS
    based on the RDEPENDS of *all* other packages. If more than one of a given
    suffix is specified, its will only use the RDEPENDS of the single parent
    package.
    """

    packages  = d.getVar('PACKAGES')
    postfixes = (d.getVar('DEPCHAIN_POST') or '').split()
    prefixes  = (d.getVar('DEPCHAIN_PRE') or '').split()

    def pkg_adddeprrecs(pkg, base, suffix, getname, depends, d):

        #bb.note('depends for %s is %s' % (base, depends))
        rreclist = bb.utils.explode_dep_versions2(d.getVar('RRECOMMENDS_' + pkg) or "")

        for depend in sorted(depends):
            if depend.find('-native') != -1 or depend.find('-cross') != -1 or depend.startswith('virtual/'):
                #bb.note("Skipping %s" % depend)
                continue
            if depend.endswith('-dev'):
                depend = depend[:-4]
            if depend.endswith('-dbg'):
                depend = depend[:-4]
            pkgname = getname(depend, suffix)
            #bb.note("Adding %s for %s" % (pkgname, depend))
            if pkgname not in rreclist and pkgname != pkg:
                rreclist[pkgname] = []

        #bb.note('setting: RRECOMMENDS_%s=%s' % (pkg, ' '.join(rreclist)))
        d.setVar('RRECOMMENDS_%s' % pkg, bb.utils.join_deps(rreclist, commasep=False))

    def pkg_addrrecs(pkg, base, suffix, getname, rdepends, d):

        #bb.note('rdepends for %s is %s' % (base, rdepends))
        rreclist = bb.utils.explode_dep_versions2(d.getVar('RRECOMMENDS_' + pkg) or "")

        for depend in sorted(rdepends):
            if depend.find('virtual-locale-') != -1:
                #bb.note("Skipping %s" % depend)
                continue
            if depend.endswith('-dev'):
                depend = depend[:-4]
            if depend.endswith('-dbg'):
                depend = depend[:-4]
            pkgname = getname(depend, suffix)
            #bb.note("Adding %s for %s" % (pkgname, depend))
            if pkgname not in rreclist and pkgname != pkg:
                rreclist[pkgname] = []

        #bb.note('setting: RRECOMMENDS_%s=%s' % (pkg, ' '.join(rreclist)))
        d.setVar('RRECOMMENDS_%s' % pkg, bb.utils.join_deps(rreclist, commasep=False))

    def add_dep(list, dep):
        if dep not in list:
            list.append(dep)

    depends = []
    for dep in bb.utils.explode_deps(d.getVar('DEPENDS') or ""):
        add_dep(depends, dep)

    rdepends = []
    for pkg in packages.split():
        for dep in bb.utils.explode_deps(d.getVar('RDEPENDS_' + pkg) or ""):
            add_dep(rdepends, dep)

    #bb.note('rdepends is %s' % rdepends)

    def post_getname(name, suffix):
        return '%s%s' % (name, suffix)
    def pre_getname(name, suffix):
        return '%s%s' % (suffix, name)

    pkgs = {}
    for pkg in packages.split():
        for postfix in postfixes:
            if pkg.endswith(postfix):
                if not postfix in pkgs:
                    pkgs[postfix] = {}
                pkgs[postfix][pkg] = (pkg[:-len(postfix)], post_getname)

        for prefix in prefixes:
            if pkg.startswith(prefix):
                if not prefix in pkgs:
                    pkgs[prefix] = {}
                pkgs[prefix][pkg] = (pkg[:-len(prefix)], pre_getname)

    if "-dbg" in pkgs:
        pkglibdeps = read_libdep_files(d)
        pkglibdeplist = []
        for pkg in pkglibdeps:
            for k in pkglibdeps[pkg]:
                add_dep(pkglibdeplist, k)
        dbgdefaultdeps = ((d.getVar('DEPCHAIN_DBGDEFAULTDEPS') == '1') or (bb.data.inherits_class('packagegroup', d)))

    for suffix in pkgs:
        for pkg in pkgs[suffix]:
            if d.getVarFlag('RRECOMMENDS_' + pkg, 'nodeprrecs'):
                continue
            (base, func) = pkgs[suffix][pkg]
            if suffix == "-dev":
                pkg_adddeprrecs(pkg, base, suffix, func, depends, d)
            elif suffix == "-dbg":
                if not dbgdefaultdeps:
                    pkg_addrrecs(pkg, base, suffix, func, pkglibdeplist, d)
                    continue
            if len(pkgs[suffix]) == 1:
                pkg_addrrecs(pkg, base, suffix, func, rdepends, d)
            else:
                rdeps = []
                for dep in bb.utils.explode_deps(d.getVar('RDEPENDS_' + base) or ""):
                    add_dep(rdeps, dep)
                pkg_addrrecs(pkg, base, suffix, func, rdeps, d)
}

# Since bitbake can't determine which variables are accessed during package
# iteration, we need to list them here:
PACKAGEVARS = "FILES RDEPENDS RRECOMMENDS SUMMARY DESCRIPTION RSUGGESTS RPROVIDES RCONFLICTS PKG ALLOW_EMPTY pkg_postinst pkg_postrm pkg_postinst_ontarget INITSCRIPT_NAME INITSCRIPT_PARAMS DEBIAN_NOAUTONAME ALTERNATIVE PKGE PKGV PKGR USERADD_PARAM GROUPADD_PARAM CONFFILES SYSTEMD_SERVICE LICENSE SECTION pkg_preinst pkg_prerm RREPLACES GROUPMEMS_PARAM SYSTEMD_AUTO_ENABLE SKIP_FILEDEPS PRIVATE_LIBS"

def gen_packagevar(d):
    ret = []
    pkgs = (d.getVar("PACKAGES") or "").split()
    vars = (d.getVar("PACKAGEVARS") or "").split()
    for p in pkgs:
        for v in vars:
            ret.append(v + "_" + p)

        # Ensure that changes to INCOMPATIBLE_LICENSE re-run do_package for
        # affected recipes.
        ret.append('LICENSE_EXCLUSION-%s' % p)
    return " ".join(ret)

PACKAGE_PREPROCESS_FUNCS ?= ""
# Functions for setting up PKGD
PACKAGEBUILDPKGD ?= " \
                package_prepare_pkgdata \
                perform_packagecopy \
                ${PACKAGE_PREPROCESS_FUNCS} \
                split_and_strip_files \
                fixup_perms \
                "
# Functions which split PKGD up into separate packages
PACKAGESPLITFUNCS ?= " \
                package_do_split_locales \
                populate_packages"
# Functions which process metadata based on split packages
PACKAGEFUNCS += " \
                package_fixsymlinks \
                package_name_hook \
                package_do_filedeps \
                package_do_shlibs \
                package_do_pkgconfig \
                read_shlibdeps \
                package_depchains \
                emit_pkgdata"

python do_package () {
    # Change the following version to cause sstate to invalidate the package
    # cache.  This is useful if an item this class depends on changes in a
    # way that the output of this class changes.  rpmdeps is a good example
    # as any change to rpmdeps requires this to be rerun.
    # PACKAGE_BBCLASS_VERSION = "2"

    # Init cachedpath
    global cpath
    cpath = oe.cachedpath.CachedPath()

    ###########################################################################
    # Sanity test the setup
    ###########################################################################

    packages = (d.getVar('PACKAGES') or "").split()
    if len(packages) < 1:
        bb.debug(1, "No packages to build, skipping do_package")
        return

    workdir = d.getVar('WORKDIR')
    outdir = d.getVar('DEPLOY_DIR')
    dest = d.getVar('D')
    dvar = d.getVar('PKGD')
    pn = d.getVar('PN')

    if not workdir or not outdir or not dest or not dvar or not pn:
        msg = "WORKDIR, DEPLOY_DIR, D, PN and PKGD all must be defined, unable to package"
        package_qa_handle_error("var-undefined", msg, d)
        return

    bb.build.exec_func("package_get_auto_pr", d)

    ###########################################################################
    # Optimisations
    ###########################################################################

    # Continually expanding complex expressions is inefficient, particularly
    # when we write to the datastore and invalidate the expansion cache. This
    # code pre-expands some frequently used variables

    def expandVar(x, d):
        d.setVar(x, d.getVar(x))

    for x in 'PN', 'PV', 'BPN', 'TARGET_SYS', 'EXTENDPRAUTO':
        expandVar(x, d)

    ###########################################################################
    # Setup PKGD (from D)
    ###########################################################################

    for f in (d.getVar('PACKAGEBUILDPKGD') or '').split():
        bb.build.exec_func(f, d)

    ###########################################################################
    # Split up PKGD into PKGDEST
    ###########################################################################

    cpath = oe.cachedpath.CachedPath()

    for f in (d.getVar('PACKAGESPLITFUNCS') or '').split():
        bb.build.exec_func(f, d)

    ###########################################################################
    # Process PKGDEST
    ###########################################################################

    # Build global list of files in each split package
    global pkgfiles
    pkgfiles = {}
    packages = d.getVar('PACKAGES').split()
    pkgdest = d.getVar('PKGDEST')
    for pkg in packages:
        pkgfiles[pkg] = []
        for walkroot, dirs, files in cpath.walk(pkgdest + "/" + pkg):
            for file in files:
                pkgfiles[pkg].append(walkroot + os.sep + file)

    for f in (d.getVar('PACKAGEFUNCS') or '').split():
        bb.build.exec_func(f, d)

    qa_sane = d.getVar("QA_SANE")
    if not qa_sane:
        bb.fatal("Fatal QA errors found, failing task.")
}

do_package[dirs] = "${SHLIBSWORKDIR} ${PKGDESTWORK} ${D}"
do_package[vardeps] += "${PACKAGEBUILDPKGD} ${PACKAGESPLITFUNCS} ${PACKAGEFUNCS} ${@gen_packagevar(d)}"
addtask package after do_install

SSTATETASKS += "do_package"
do_package[cleandirs] = "${PKGDEST} ${PKGDESTWORK}"
do_package[sstate-plaindirs] = "${PKGD} ${PKGDEST} ${PKGDESTWORK}"
do_package_setscene[dirs] = "${STAGING_DIR}"

python do_package_setscene () {
    sstate_setscene(d)
}
addtask do_package_setscene

# Copy from PKGDESTWORK to tempdirectory as tempdirectory can be cleaned at both
# do_package_setscene and do_packagedata_setscene leading to races
python do_packagedata () {
    src = d.expand("${PKGDESTWORK}")
    dest = d.expand("${WORKDIR}/pkgdata-pdata-input")
    oe.path.copyhardlinktree(src, dest)
}

addtask packagedata before do_build after do_package

SSTATETASKS += "do_packagedata"
do_packagedata[sstate-inputdirs] = "${WORKDIR}/pkgdata-pdata-input"
do_packagedata[sstate-outputdirs] = "${PKGDATA_DIR}"
do_packagedata[stamp-extra-info] = "${MACHINE_ARCH}"

python do_packagedata_setscene () {
    sstate_setscene(d)
}
addtask do_packagedata_setscene

#
# Helper functions for the package writing classes
#

def mapping_rename_hook(d):
    """
    Rewrite variables to account for package renaming in things
    like debian.bbclass or manual PKG variable name changes
    """
    pkg = d.getVar("PKG")
    runtime_mapping_rename("RDEPENDS", pkg, d)
    runtime_mapping_rename("RRECOMMENDS", pkg, d)
    runtime_mapping_rename("RSUGGESTS", pkg, d)