summaryrefslogtreecommitdiff
path: root/gas/write.c
blob: ec421930146c8ad15780e35573d1129a34cfedd6 (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
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
/* write.c - emit .o file
   Copyright 1986, 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
   1998, 1999, 2000, 2001
   Free Software Foundation, Inc.

   This file is part of GAS, the GNU Assembler.

   GAS is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   GAS is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GAS; see the file COPYING.  If not, write to the Free
   Software Foundation, 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA.  */

/* This thing should be set up to do byteordering correctly.  But...  */

#include "as.h"
#include "subsegs.h"
#include "obstack.h"
#include "output-file.h"
#include "dwarf2dbg.h"

/* This looks like a good idea.  Let's try turning it on always, for now.  */
#undef  BFD_FAST_SECTION_FILL
#define BFD_FAST_SECTION_FILL

#ifndef TC_ADJUST_RELOC_COUNT
#define TC_ADJUST_RELOC_COUNT(FIXP,COUNT)
#endif

#ifndef TC_FORCE_RELOCATION
#define TC_FORCE_RELOCATION(FIXP) 0
#endif

#ifndef TC_FORCE_RELOCATION_SECTION
#define TC_FORCE_RELOCATION_SECTION(FIXP,SEG) TC_FORCE_RELOCATION(FIXP)
#endif

#ifndef TC_LINKRELAX_FIXUP
#define TC_LINKRELAX_FIXUP(SEG) 1
#endif

#ifndef TC_FIX_ADJUSTABLE
#define TC_FIX_ADJUSTABLE(fix) 1
#endif

#ifndef	MD_PCREL_FROM_SECTION
#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from(FIXP)
#endif

#ifndef WORKING_DOT_WORD
extern CONST int md_short_jump_size;
extern CONST int md_long_jump_size;
#endif

int symbol_table_frozen;
void print_fixup PARAMS ((fixS *));

#ifdef BFD_ASSEMBLER
static void renumber_sections PARAMS ((bfd *, asection *, PTR));

/* We generally attach relocs to frag chains.  However, after we have
   chained these all together into a segment, any relocs we add after
   that must be attached to a segment.  This will include relocs added
   in md_estimate_size_for_relax, for example.  */
static int frags_chained = 0;
#endif

#ifndef BFD_ASSEMBLER

#ifndef MANY_SEGMENTS
struct frag *text_frag_root;
struct frag *data_frag_root;
struct frag *bss_frag_root;

struct frag *text_last_frag;	/* Last frag in segment.  */
struct frag *data_last_frag;	/* Last frag in segment.  */
static struct frag *bss_last_frag;	/* Last frag in segment.  */
#endif

#ifndef BFD
static object_headers headers;
#endif

long string_byte_count;
char *next_object_file_charP;	/* Tracks object file bytes.  */

#ifndef OBJ_VMS
int magic_number_for_object_file = DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE;
#endif

#endif /* BFD_ASSEMBLER  */

static int n_fixups;

#ifdef BFD_ASSEMBLER
static fixS *fix_new_internal PARAMS ((fragS *, int where, int size,
				       symbolS *add, symbolS *sub,
				       offsetT offset, int pcrel,
				       bfd_reloc_code_real_type r_type));
#else
static fixS *fix_new_internal PARAMS ((fragS *, int where, int size,
				       symbolS *add, symbolS *sub,
				       offsetT offset, int pcrel,
				       int r_type));
#endif
#if defined (BFD_ASSEMBLER) || (!defined (BFD) && !defined (OBJ_VMS))
static long fixup_segment PARAMS ((fixS * fixP, segT this_segment_type));
#endif
static relax_addressT relax_align PARAMS ((relax_addressT addr, int align));
#if defined (BFD_ASSEMBLER) || ! defined (BFD)
static fragS *chain_frchains_together_1 PARAMS ((segT, struct frchain *));
#endif
#ifdef BFD_ASSEMBLER
static void chain_frchains_together PARAMS ((bfd *, segT, PTR));
static void cvt_frag_to_fill PARAMS ((segT, fragS *));
static void relax_and_size_seg PARAMS ((bfd *, asection *, PTR));
static void adjust_reloc_syms PARAMS ((bfd *, asection *, PTR));
static void write_relocs PARAMS ((bfd *, asection *, PTR));
static void write_contents PARAMS ((bfd *, asection *, PTR));
static void set_symtab PARAMS ((void));
#endif
#if defined (BFD_ASSEMBLER) || (! defined (BFD) && ! defined (OBJ_AOUT))
static void merge_data_into_text PARAMS ((void));
#endif
#if ! defined (BFD_ASSEMBLER) && ! defined (BFD)
static void cvt_frag_to_fill PARAMS ((object_headers *, segT, fragS *));
static void remove_subsegs PARAMS ((frchainS *, int, fragS **, fragS **));
static void relax_and_size_all_segments PARAMS ((void));
#endif
#if defined (BFD_ASSEMBLER) && defined (OBJ_COFF) && defined (TE_GO32)
static void set_segment_vma PARAMS ((bfd *, asection *, PTR));
#endif

/* Create a fixS in obstack 'notes'.  */

static fixS *
fix_new_internal (frag, where, size, add_symbol, sub_symbol, offset, pcrel,
		  r_type)
     fragS *frag;		/* Which frag?  */
     int where;			/* Where in that frag?  */
     int size;			/* 1, 2, or 4 usually.  */
     symbolS *add_symbol;	/* X_add_symbol.  */
     symbolS *sub_symbol;	/* X_op_symbol.  */
     offsetT offset;		/* X_add_number.  */
     int pcrel;			/* TRUE if PC-relative relocation.  */
#ifdef BFD_ASSEMBLER
     bfd_reloc_code_real_type r_type; /* Relocation type.  */
#else
     int r_type;		/* Relocation type.  */
#endif
{
  fixS *fixP;

  n_fixups++;

  fixP = (fixS *) obstack_alloc (&notes, sizeof (fixS));

  fixP->fx_frag = frag;
  fixP->fx_where = where;
  fixP->fx_size = size;
  /* We've made fx_size a narrow field; check that it's wide enough.  */
  if (fixP->fx_size != size)
    {
      as_bad (_("field fx_size too small to hold %d"), size);
      abort ();
    }
  fixP->fx_addsy = add_symbol;
  fixP->fx_subsy = sub_symbol;
  fixP->fx_offset = offset;
  fixP->fx_pcrel = pcrel;
  fixP->fx_plt = 0;
#if defined(NEED_FX_R_TYPE) || defined (BFD_ASSEMBLER)
  fixP->fx_r_type = r_type;
#endif
  fixP->fx_im_disp = 0;
  fixP->fx_pcrel_adjust = 0;
  fixP->fx_bit_fixP = 0;
  fixP->fx_addnumber = 0;
  fixP->fx_tcbit = 0;
  fixP->fx_done = 0;
  fixP->fx_no_overflow = 0;
  fixP->fx_signed = 0;

#ifdef USING_CGEN
  fixP->fx_cgen.insn = NULL;
  fixP->fx_cgen.opinfo = 0;
#endif

#ifdef TC_FIX_TYPE
  TC_INIT_FIX_DATA (fixP);
#endif

  as_where (&fixP->fx_file, &fixP->fx_line);

  /* Usually, we want relocs sorted numerically, but while
     comparing to older versions of gas that have relocs
     reverse sorted, it is convenient to have this compile
     time option.  xoxorich.  */
  {

#ifdef BFD_ASSEMBLER
    fixS **seg_fix_rootP = (frags_chained
			    ? &seg_info (now_seg)->fix_root
			    : &frchain_now->fix_root);
    fixS **seg_fix_tailP = (frags_chained
			    ? &seg_info (now_seg)->fix_tail
			    : &frchain_now->fix_tail);
#endif

#ifdef REVERSE_SORT_RELOCS

    fixP->fx_next = *seg_fix_rootP;
    *seg_fix_rootP = fixP;

#else /* REVERSE_SORT_RELOCS  */

    fixP->fx_next = NULL;

    if (*seg_fix_tailP)
      (*seg_fix_tailP)->fx_next = fixP;
    else
      *seg_fix_rootP = fixP;
    *seg_fix_tailP = fixP;

#endif /* REVERSE_SORT_RELOCS  */
  }

  return fixP;
}

/* Create a fixup relative to a symbol (plus a constant).  */

fixS *
fix_new (frag, where, size, add_symbol, offset, pcrel, r_type)
     fragS *frag;		/* Which frag?  */
     int where;			/* Where in that frag?  */
     int size;			/* 1, 2, or 4 usually.  */
     symbolS *add_symbol;	/* X_add_symbol.  */
     offsetT offset;		/* X_add_number.  */
     int pcrel;			/* TRUE if PC-relative relocation.  */
#ifdef BFD_ASSEMBLER
     bfd_reloc_code_real_type r_type; /* Relocation type.  */
#else
     int r_type;		/* Relocation type.  */
#endif
{
  return fix_new_internal (frag, where, size, add_symbol,
			   (symbolS *) NULL, offset, pcrel, r_type);
}

/* Create a fixup for an expression.  Currently we only support fixups
   for difference expressions.  That is itself more than most object
   file formats support anyhow.  */

fixS *
fix_new_exp (frag, where, size, exp, pcrel, r_type)
     fragS *frag;		/* Which frag?  */
     int where;			/* Where in that frag?  */
     int size;			/* 1, 2, or 4 usually.  */
     expressionS *exp;		/* Expression.  */
     int pcrel;			/* TRUE if PC-relative relocation.  */
#ifdef BFD_ASSEMBLER
     bfd_reloc_code_real_type r_type; /* Relocation type.  */
#else
     int r_type;		/* Relocation type.  */
#endif
{
  symbolS *add = NULL;
  symbolS *sub = NULL;
  offsetT off = 0;

  switch (exp->X_op)
    {
    case O_absent:
      break;

    case O_add:
      /* This comes up when _GLOBAL_OFFSET_TABLE_+(.-L0) is read, if
	 the difference expression cannot immediately be reduced.  */
      {
	symbolS *stmp = make_expr_symbol (exp);

	exp->X_op = O_symbol;
	exp->X_op_symbol = 0;
	exp->X_add_symbol = stmp;
	exp->X_add_number = 0;

	return fix_new_exp (frag, where, size, exp, pcrel, r_type);
      }

    case O_symbol_rva:
      add = exp->X_add_symbol;
      off = exp->X_add_number;

#if defined(BFD_ASSEMBLER)
      r_type = BFD_RELOC_RVA;
#else
#if defined(TC_RVA_RELOC)
      r_type = TC_RVA_RELOC;
#else
      as_fatal (_("rva not supported"));
#endif
#endif
      break;

    case O_uminus:
      sub = exp->X_add_symbol;
      off = exp->X_add_number;
      break;

    case O_subtract:
      sub = exp->X_op_symbol;
      /* Fall through.  */
    case O_symbol:
      add = exp->X_add_symbol;
      /* Fall through.  */
    case O_constant:
      off = exp->X_add_number;
      break;

    default:
      add = make_expr_symbol (exp);
      break;
    }

  return fix_new_internal (frag, where, size, add, sub, off, pcrel, r_type);
}

/* Append a string onto another string, bumping the pointer along.  */
void
append (charPP, fromP, length)
     char **charPP;
     char *fromP;
     unsigned long length;
{
  /* Don't trust memcpy() of 0 chars.  */
  if (length == 0)
    return;

  memcpy (*charPP, fromP, length);
  *charPP += length;
}

#ifndef BFD_ASSEMBLER
int section_alignment[SEG_MAXIMUM_ORDINAL];
#endif

/* This routine records the largest alignment seen for each segment.
   If the beginning of the segment is aligned on the worst-case
   boundary, all of the other alignments within it will work.  At
   least one object format really uses this info.  */

void
record_alignment (seg, align)
     /* Segment to which alignment pertains.  */
     segT seg;
     /* Alignment, as a power of 2 (e.g., 1 => 2-byte boundary, 2 => 4-byte
	boundary, etc.)  */
     int align;
{
  if (seg == absolute_section)
    return;
#ifdef BFD_ASSEMBLER
  if ((unsigned int) align > bfd_get_section_alignment (stdoutput, seg))
    bfd_set_section_alignment (stdoutput, seg, align);
#else
  if (align > section_alignment[(int) seg])
    section_alignment[(int) seg] = align;
#endif
}

int
get_recorded_alignment (seg)
     segT seg;
{
  if (seg == absolute_section)
    return 0;
#ifdef BFD_ASSEMBLER
  return bfd_get_section_alignment (stdoutput, seg);
#else
  return section_alignment[(int) seg];
#endif
}

#ifdef BFD_ASSEMBLER

/* Reset the section indices after removing the gas created sections.  */

static void
renumber_sections (abfd, sec, countparg)
     bfd *abfd ATTRIBUTE_UNUSED;
     asection *sec;
     PTR countparg;
{
  int *countp = (int *) countparg;

  sec->index = *countp;
  ++*countp;
}

#endif /* defined (BFD_ASSEMBLER)  */

#if defined (BFD_ASSEMBLER) || ! defined (BFD)

static fragS *
chain_frchains_together_1 (section, frchp)
     segT section;
     struct frchain *frchp;
{
  fragS dummy, *prev_frag = &dummy;
#ifdef BFD_ASSEMBLER
  fixS fix_dummy, *prev_fix = &fix_dummy;
#endif

  for (; frchp && frchp->frch_seg == section; frchp = frchp->frch_next)
    {
      prev_frag->fr_next = frchp->frch_root;
      prev_frag = frchp->frch_last;
      assert (prev_frag->fr_type != 0);
#ifdef BFD_ASSEMBLER
      if (frchp->fix_root != (fixS *) NULL)
	{
	  if (seg_info (section)->fix_root == (fixS *) NULL)
	    seg_info (section)->fix_root = frchp->fix_root;
	  prev_fix->fx_next = frchp->fix_root;
	  seg_info (section)->fix_tail = frchp->fix_tail;
	  prev_fix = frchp->fix_tail;
	}
#endif
    }
  assert (prev_frag->fr_type != 0);
  prev_frag->fr_next = 0;
  return prev_frag;
}

#endif

#ifdef BFD_ASSEMBLER

static void
chain_frchains_together (abfd, section, xxx)
     bfd *abfd ATTRIBUTE_UNUSED;
     segT section;
     PTR xxx ATTRIBUTE_UNUSED;
{
  segment_info_type *info;

  /* BFD may have introduced its own sections without using
     subseg_new, so it is possible that seg_info is NULL.  */
  info = seg_info (section);
  if (info != (segment_info_type *) NULL)
    info->frchainP->frch_last
      = chain_frchains_together_1 (section, info->frchainP);

  /* Now that we've chained the frags together, we must add new fixups
     to the segment, not to the frag chain.  */
  frags_chained = 1;
}

#endif

#if !defined (BFD) && !defined (BFD_ASSEMBLER)

static void
remove_subsegs (head, seg, root, last)
     frchainS *head;
     int seg;
     fragS **root;
     fragS **last;
{
  *root = head->frch_root;
  *last = chain_frchains_together_1 (seg, head);
}

#endif /* BFD  */

#if defined (BFD_ASSEMBLER) || !defined (BFD)

#ifdef BFD_ASSEMBLER
static void
cvt_frag_to_fill (sec, fragP)
     segT sec ATTRIBUTE_UNUSED;
     fragS *fragP;
#else
static void
cvt_frag_to_fill (headersP, sec, fragP)
     object_headers *headersP;
     segT sec;
     fragS *fragP;
#endif
{
  switch (fragP->fr_type)
    {
    case rs_align:
    case rs_align_code:
    case rs_align_test:
    case rs_org:
    case rs_space:
#ifdef HANDLE_ALIGN
      HANDLE_ALIGN (fragP);
#endif
      know (fragP->fr_next != NULL);
      fragP->fr_offset = (fragP->fr_next->fr_address
			  - fragP->fr_address
			  - fragP->fr_fix) / fragP->fr_var;
      if (fragP->fr_offset < 0)
	{
	  as_bad_where (fragP->fr_file, fragP->fr_line,
			_("attempt to .org/.space backwards? (%ld)"),
			(long) fragP->fr_offset);
	}
      fragP->fr_type = rs_fill;
      break;

    case rs_fill:
      break;

    case rs_leb128:
      {
	valueT value = S_GET_VALUE (fragP->fr_symbol);
	int size;

	size = output_leb128 (fragP->fr_literal + fragP->fr_fix, value,
			      fragP->fr_subtype);

	fragP->fr_fix += size;
	fragP->fr_type = rs_fill;
	fragP->fr_var = 0;
	fragP->fr_offset = 0;
	fragP->fr_symbol = NULL;
      }
      break;

    case rs_cfa:
      eh_frame_convert_frag (fragP);
      break;

    case rs_dwarf2dbg:
      dwarf2dbg_convert_frag (fragP);
      break;

    case rs_machine_dependent:
#ifdef BFD_ASSEMBLER
      md_convert_frag (stdoutput, sec, fragP);
#else
      md_convert_frag (headersP, sec, fragP);
#endif

      assert (fragP->fr_next == NULL
	      || ((offsetT) (fragP->fr_next->fr_address - fragP->fr_address)
		  == fragP->fr_fix));

      /* After md_convert_frag, we make the frag into a ".space 0".
	 md_convert_frag() should set up any fixSs and constants
	 required.  */
      frag_wane (fragP);
      break;

#ifndef WORKING_DOT_WORD
    case rs_broken_word:
      {
	struct broken_word *lie;

	if (fragP->fr_subtype)
	  {
	    fragP->fr_fix += md_short_jump_size;
	    for (lie = (struct broken_word *) (fragP->fr_symbol);
		 lie && lie->dispfrag == fragP;
		 lie = lie->next_broken_word)
	      if (lie->added == 1)
		fragP->fr_fix += md_long_jump_size;
	  }
	frag_wane (fragP);
      }
      break;
#endif

    default:
      BAD_CASE (fragP->fr_type);
      break;
    }
}

#endif /* defined (BFD_ASSEMBLER) || !defined (BFD)  */

#ifdef BFD_ASSEMBLER
static void
relax_and_size_seg (abfd, sec, xxx)
     bfd *abfd;
     asection *sec;
     PTR xxx ATTRIBUTE_UNUSED;
{
  flagword flags;
  fragS *fragp;
  segment_info_type *seginfo;
  int x;
  valueT size, newsize;

  subseg_change (sec, 0);

  flags = bfd_get_section_flags (abfd, sec);

  seginfo = seg_info (sec);
  if (seginfo && seginfo->frchainP)
    {
      relax_segment (seginfo->frchainP->frch_root, sec);
      for (fragp = seginfo->frchainP->frch_root; fragp; fragp = fragp->fr_next)
	cvt_frag_to_fill (sec, fragp);
      for (fragp = seginfo->frchainP->frch_root;
	   fragp->fr_next;
	   fragp = fragp->fr_next)
	/* Walk to last elt.  */
	;
      size = fragp->fr_address + fragp->fr_fix;
    }
  else
    size = 0;

  if (size > 0 && ! seginfo->bss)
    flags |= SEC_HAS_CONTENTS;

  /* @@ This is just an approximation.  */
  if (seginfo && seginfo->fix_root)
    flags |= SEC_RELOC;
  else
    flags &= ~SEC_RELOC;
  x = bfd_set_section_flags (abfd, sec, flags);
  assert (x == true);

  newsize = md_section_align (sec, size);
  x = bfd_set_section_size (abfd, sec, newsize);
  assert (x == true);

  /* If the size had to be rounded up, add some padding in the last
     non-empty frag.  */
  assert (newsize >= size);
  if (size != newsize)
    {
      fragS *last = seginfo->frchainP->frch_last;
      fragp = seginfo->frchainP->frch_root;
      while (fragp->fr_next != last)
	fragp = fragp->fr_next;
      last->fr_address = size;
      fragp->fr_offset += newsize - size;
    }

#ifdef tc_frob_section
  tc_frob_section (sec);
#endif
#ifdef obj_frob_section
  obj_frob_section (sec);
#endif
}

#ifdef DEBUG2
static void
dump_section_relocs (abfd, sec, stream_)
     bfd *abfd ATTRIBUTE_UNUSED;
     asection *sec;
     char *stream_;
{
  FILE *stream = (FILE *) stream_;
  segment_info_type *seginfo = seg_info (sec);
  fixS *fixp = seginfo->fix_root;

  if (!fixp)
    return;

  fprintf (stream, "sec %s relocs:\n", sec->name);
  while (fixp)
    {
      symbolS *s = fixp->fx_addsy;

      fprintf (stream, "  %08lx: type %d ", (unsigned long) fixp,
	       (int) fixp->fx_r_type);
      if (s == NULL)
	fprintf (stream, "no sym\n");
      else
	{
	  print_symbol_value_1 (stream, s);
	  fprintf (stream, "\n");
	}
      fixp = fixp->fx_next;
    }
}
#else
#define dump_section_relocs(ABFD,SEC,STREAM)	((void) 0)
#endif

#ifndef EMIT_SECTION_SYMBOLS
#define EMIT_SECTION_SYMBOLS 1
#endif

static void
adjust_reloc_syms (abfd, sec, xxx)
     bfd *abfd ATTRIBUTE_UNUSED;
     asection *sec;
     PTR xxx ATTRIBUTE_UNUSED;
{
  segment_info_type *seginfo = seg_info (sec);
  fixS *fixp;

  if (seginfo == NULL)
    return;

  dump_section_relocs (abfd, sec, stderr);

  for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next)
    if (fixp->fx_done)
      /* Ignore it.  */
      ;
    else if (fixp->fx_addsy)
      {
	symbolS *sym;
	asection *symsec;

#ifdef DEBUG5
	fprintf (stderr, "\n\nadjusting fixup:\n");
	print_fixup (fixp);
#endif

	sym = fixp->fx_addsy;

	/* All symbols should have already been resolved at this
	   point.  It is possible to see unresolved expression
	   symbols, though, since they are not in the regular symbol
	   table.  */
	if (sym != NULL)
	  resolve_symbol_value (sym, 1);

	if (fixp->fx_subsy != NULL)
	  resolve_symbol_value (fixp->fx_subsy, 1);

	/* If this symbol is equated to an undefined symbol, convert
           the fixup to being against that symbol.  */
	if (sym != NULL && symbol_equated_p (sym)
	    && (! S_IS_DEFINED (sym) || S_IS_COMMON (sym)))
	  {
	    fixp->fx_offset += symbol_get_value_expression (sym)->X_add_number;
	    sym = symbol_get_value_expression (sym)->X_add_symbol;
	    fixp->fx_addsy = sym;
	  }

	if (sym != NULL && symbol_mri_common_p (sym))
	  {
	    /* These symbols are handled specially in fixup_segment.  */
	    goto done;
	  }

	symsec = S_GET_SEGMENT (sym);

	if (symsec == NULL)
	  abort ();

	if (bfd_is_abs_section (symsec))
	  {
	    /* The fixup_segment routine will not use this symbol in a
               relocation unless TC_FORCE_RELOCATION returns 1.  */
	    if (TC_FORCE_RELOCATION (fixp))
	      {
		symbol_mark_used_in_reloc (fixp->fx_addsy);
#ifdef UNDEFINED_DIFFERENCE_OK
		if (fixp->fx_subsy != NULL)
		  symbol_mark_used_in_reloc (fixp->fx_subsy);
#endif
	      }
	    goto done;
	  }

	/* If it's one of these sections, assume the symbol is
	   definitely going to be output.  The code in
	   md_estimate_size_before_relax in tc-mips.c uses this test
	   as well, so if you change this code you should look at that
	   code.  */
	if (bfd_is_und_section (symsec)
	    || bfd_is_com_section (symsec))
	  {
	    symbol_mark_used_in_reloc (fixp->fx_addsy);
#ifdef UNDEFINED_DIFFERENCE_OK
	    /* We have the difference of an undefined symbol and some
	       other symbol.  Make sure to mark the other symbol as used
	       in a relocation so that it will always be output.  */
	    if (fixp->fx_subsy)
	      symbol_mark_used_in_reloc (fixp->fx_subsy);
#endif
	    goto done;
	  }

	/* Don't try to reduce relocs which refer to non-local symbols
           in .linkonce sections.  It can lead to confusion when a
           debugging section refers to a .linkonce section.  I hope
           this will always be correct.  */
	if (symsec != sec && ! S_IS_LOCAL (sym))
	  {
	    boolean linkonce;

	    linkonce = false;
#ifdef BFD_ASSEMBLER
	    if ((bfd_get_section_flags (stdoutput, symsec) & SEC_LINK_ONCE)
		!= 0)
	      linkonce = true;
#endif
#ifdef OBJ_ELF
	    /* The GNU toolchain uses an extension for ELF: a section
               beginning with the magic string .gnu.linkonce is a
               linkonce section.  */
	    if (strncmp (segment_name (symsec), ".gnu.linkonce",
			 sizeof ".gnu.linkonce" - 1) == 0)
	      linkonce = true;
#endif

	    if (linkonce)
	      {
		symbol_mark_used_in_reloc (fixp->fx_addsy);
#ifdef UNDEFINED_DIFFERENCE_OK
		if (fixp->fx_subsy != NULL)
		  symbol_mark_used_in_reloc (fixp->fx_subsy);
#endif
		goto done;
	      }
	  }

	/* Since we're reducing to section symbols, don't attempt to reduce
	   anything that's already using one.  */
	if (symbol_section_p (sym))
	  {
	    symbol_mark_used_in_reloc (fixp->fx_addsy);
	    goto done;
	  }

#ifdef BFD_ASSEMBLER
	/* We can never adjust a reloc against a weak symbol.  If we
           did, and the weak symbol was overridden by a real symbol
           somewhere else, then our relocation would be pointing at
           the wrong area of memory.  */
	if (S_IS_WEAK (sym))
	  {
	    symbol_mark_used_in_reloc (fixp->fx_addsy);
	    goto done;
	  }
#endif

	/* Is there some other reason we can't adjust this one?  (E.g.,
	   call/bal links in i960-bout symbols.)  */
#ifdef obj_fix_adjustable
	if (! obj_fix_adjustable (fixp))
	  {
	    symbol_mark_used_in_reloc (fixp->fx_addsy);
	    goto done;
	  }
#endif

	/* Is there some other (target cpu dependent) reason we can't adjust
	   this one?  (E.g. relocations involving function addresses on
	   the PA.  */
#ifdef tc_fix_adjustable
	if (! tc_fix_adjustable (fixp))
	  {
	    symbol_mark_used_in_reloc (fixp->fx_addsy);
	    goto done;
	  }
#endif

	/* If the section symbol isn't going to be output, the relocs
	   at least should still work.  If not, figure out what to do
	   when we run into that case.

	   We refetch the segment when calling section_symbol, rather
	   than using symsec, because S_GET_VALUE may wind up changing
	   the section when it calls resolve_symbol_value.  */
	fixp->fx_offset += S_GET_VALUE (sym);
	fixp->fx_addsy = section_symbol (S_GET_SEGMENT (sym));
	symbol_mark_used_in_reloc (fixp->fx_addsy);
#ifdef DEBUG5
	fprintf (stderr, "\nadjusted fixup:\n");
	print_fixup (fixp);
#endif

      done:
	;
      }
#if 1 /* def RELOC_REQUIRES_SYMBOL  */
    else
      {
	/* There was no symbol required by this relocation.  However,
	   BFD doesn't really handle relocations without symbols well.
	   (At least, the COFF support doesn't.)  So for now we fake up
	   a local symbol in the absolute section.  */

	fixp->fx_addsy = section_symbol (absolute_section);
#if 0
	fixp->fx_addsy->sy_used_in_reloc = 1;
#endif
      }
#endif

  dump_section_relocs (abfd, sec, stderr);
}

static void
write_relocs (abfd, sec, xxx)
     bfd *abfd;
     asection *sec;
     PTR xxx ATTRIBUTE_UNUSED;
{
  segment_info_type *seginfo = seg_info (sec);
  unsigned int i;
  unsigned int n;
  arelent **relocs;
  fixS *fixp;
  char *err;

  /* If seginfo is NULL, we did not create this section; don't do
     anything with it.  */
  if (seginfo == NULL)
    return;

  fixup_segment (seginfo->fix_root, sec);

  n = 0;
  for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next)
    n++;

#ifndef RELOC_EXPANSION_POSSIBLE
  /* Set up reloc information as well.  */
  relocs = (arelent **) xmalloc (n * sizeof (arelent *));
  memset ((char *) relocs, 0, n * sizeof (arelent *));

  i = 0;
  for (fixp = seginfo->fix_root; fixp != (fixS *) NULL; fixp = fixp->fx_next)
    {
      arelent *reloc;
      bfd_reloc_status_type s;
      symbolS *sym;

      if (fixp->fx_done)
	{
	  n--;
	  continue;
	}

      /* If this is an undefined symbol which was equated to another
         symbol, then use generate the reloc against the latter symbol
         rather than the former.  */
      sym = fixp->fx_addsy;
      while (symbol_equated_p (sym)
	     && (! S_IS_DEFINED (sym) || S_IS_COMMON (sym)))
	{
	  symbolS *n;

	  /* We must avoid looping, as that can occur with a badly
	     written program.  */
	  n = symbol_get_value_expression (sym)->X_add_symbol;
	  if (n == sym)
	    break;
	  fixp->fx_offset += symbol_get_value_expression (sym)->X_add_number;
	  sym = n;
	}
      fixp->fx_addsy = sym;

      reloc = tc_gen_reloc (sec, fixp);
      if (!reloc)
	{
	  n--;
	  continue;
	}

#if 0
      /* This test is triggered inappropriately for the SH.  */
      if (fixp->fx_where + fixp->fx_size
	  > fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset)
	abort ();
#endif

      s = bfd_install_relocation (stdoutput, reloc,
				  fixp->fx_frag->fr_literal,
				  fixp->fx_frag->fr_address,
				  sec, &err);
      switch (s)
	{
	case bfd_reloc_ok:
	  break;
	case bfd_reloc_overflow:
	  as_bad_where (fixp->fx_file, fixp->fx_line, _("relocation overflow"));
	  break;
	case bfd_reloc_outofrange:
	  as_bad_where (fixp->fx_file, fixp->fx_line, _("relocation out of range"));
	  break;
	default:
	  as_fatal (_("%s:%u: bad return from bfd_install_relocation: %x"),
		    fixp->fx_file, fixp->fx_line, s);
	}
      relocs[i++] = reloc;
    }
#else
  n = n * MAX_RELOC_EXPANSION;
  /* Set up reloc information as well.  */
  relocs = (arelent **) xmalloc (n * sizeof (arelent *));

  i = 0;
  for (fixp = seginfo->fix_root; fixp != (fixS *) NULL; fixp = fixp->fx_next)
    {
      arelent **reloc;
      char *data;
      bfd_reloc_status_type s;
      symbolS *sym;
      int j;

      if (fixp->fx_done)
	{
	  n--;
	  continue;
	}

      /* If this is an undefined symbol which was equated to another
         symbol, then generate the reloc against the latter symbol
         rather than the former.  */
      sym = fixp->fx_addsy;
      while (symbol_equated_p (sym)
	     && (! S_IS_DEFINED (sym) || S_IS_COMMON (sym)))
	sym = symbol_get_value_expression (sym)->X_add_symbol;
      fixp->fx_addsy = sym;

      reloc = tc_gen_reloc (sec, fixp);

      for (j = 0; reloc[j]; j++)
	{
	  relocs[i++] = reloc[j];
	  assert (i <= n);
	}
      data = fixp->fx_frag->fr_literal + fixp->fx_where;
      if (fixp->fx_where + fixp->fx_size
	  > fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset)
	as_bad_where (fixp->fx_file, fixp->fx_line,
		      _("internal error: fixup not contained within frag"));
      for (j = 0; reloc[j]; j++)
	{
	  s = bfd_install_relocation (stdoutput, reloc[j],
				      fixp->fx_frag->fr_literal,
				      fixp->fx_frag->fr_address,
				      sec, &err);
	  switch (s)
	    {
	    case bfd_reloc_ok:
	      break;
	    case bfd_reloc_overflow:
	      as_bad_where (fixp->fx_file, fixp->fx_line,
			    _("relocation overflow"));
	      break;
	    default:
	      as_fatal (_("%s:%u: bad return from bfd_install_relocation"),
			fixp->fx_file, fixp->fx_line);
	    }
	}
    }
  n = i;
#endif

#ifdef DEBUG4
  {
    int i, j, nsyms;
    asymbol **sympp;
    sympp = bfd_get_outsymbols (stdoutput);
    nsyms = bfd_get_symcount (stdoutput);
    for (i = 0; i < n; i++)
      if (((*relocs[i]->sym_ptr_ptr)->flags & BSF_SECTION_SYM) == 0)
	{
	  for (j = 0; j < nsyms; j++)
	    if (sympp[j] == *relocs[i]->sym_ptr_ptr)
	      break;
	  if (j == nsyms)
	    abort ();
	}
  }
#endif

  if (n)
    bfd_set_reloc (stdoutput, sec, relocs, n);
  else
    bfd_set_section_flags (abfd, sec,
			   (bfd_get_section_flags (abfd, sec)
			    & (flagword) ~SEC_RELOC));

#ifdef SET_SECTION_RELOCS
  SET_SECTION_RELOCS (sec, relocs, n);
#endif

#ifdef DEBUG3
  {
    int i;
    arelent *r;
    asymbol *s;
    fprintf (stderr, "relocs for sec %s\n", sec->name);
    for (i = 0; i < n; i++)
      {
	r = relocs[i];
	s = *r->sym_ptr_ptr;
	fprintf (stderr, "  reloc %2d @%08x off %4x : sym %-10s addend %x\n",
		 i, r, r->address, s->name, r->addend);
      }
  }
#endif
}

static void
write_contents (abfd, sec, xxx)
     bfd *abfd ATTRIBUTE_UNUSED;
     asection *sec;
     PTR xxx ATTRIBUTE_UNUSED;
{
  segment_info_type *seginfo = seg_info (sec);
  unsigned long offset = 0;
  fragS *f;

  /* Write out the frags.  */
  if (seginfo == NULL
      || !(bfd_get_section_flags (abfd, sec) & SEC_HAS_CONTENTS))
    return;

  for (f = seginfo->frchainP->frch_root;
       f;
       f = f->fr_next)
    {
      int x;
      unsigned long fill_size;
      char *fill_literal;
      long count;

      assert (f->fr_type == rs_fill);
      if (f->fr_fix)
	{
	  x = bfd_set_section_contents (stdoutput, sec,
					f->fr_literal, (file_ptr) offset,
					(bfd_size_type) f->fr_fix);
	  if (x == false)
	    {
	      bfd_perror (stdoutput->filename);
	      as_perror (_("FATAL: Can't write %s"), stdoutput->filename);
	      exit (EXIT_FAILURE);
	    }
	  offset += f->fr_fix;
	}
      fill_literal = f->fr_literal + f->fr_fix;
      fill_size = f->fr_var;
      count = f->fr_offset;
      assert (count >= 0);
      if (fill_size && count)
	{
	  char buf[256];
	  if (fill_size > sizeof (buf))
	    {
	      /* Do it the old way. Can this ever happen?  */
	      while (count--)
		{
		  x = bfd_set_section_contents (stdoutput, sec,
						fill_literal,
						(file_ptr) offset,
						(bfd_size_type) fill_size);
		  if (x == false)
		    {
		      bfd_perror (stdoutput->filename);
		      as_perror (_("FATAL: Can't write %s"),
				 stdoutput->filename);
		      exit (EXIT_FAILURE);
		    }
		  offset += fill_size;
		}
	    }
	  else
	    {
	      /* Build a buffer full of fill objects and output it as
		 often as necessary. This saves on the overhead of
		 potentially lots of bfd_set_section_contents calls.  */
	      int n_per_buf, i;
	      if (fill_size == 1)
		{
		  n_per_buf = sizeof (buf);
		  memset (buf, *fill_literal, n_per_buf);
		}
	      else
		{
		  char *bufp;
		  n_per_buf = sizeof (buf) / fill_size;
		  for (i = n_per_buf, bufp = buf; i; i--, bufp += fill_size)
		    memcpy (bufp, fill_literal, fill_size);
		}
	      for (; count > 0; count -= n_per_buf)
		{
		  n_per_buf = n_per_buf > count ? count : n_per_buf;
		  x = bfd_set_section_contents
		    (stdoutput, sec, buf, (file_ptr) offset,
		     (bfd_size_type) n_per_buf * fill_size);
		  if (x != true)
		    as_fatal (_("Cannot write to output file."));
		  offset += n_per_buf * fill_size;
		}
	    }
	}
    }
}
#endif

#if defined(BFD_ASSEMBLER) || (!defined (BFD) && !defined(OBJ_AOUT))
static void
merge_data_into_text ()
{
#if defined(BFD_ASSEMBLER) || defined(MANY_SEGMENTS)
  seg_info (text_section)->frchainP->frch_last->fr_next =
    seg_info (data_section)->frchainP->frch_root;
  seg_info (text_section)->frchainP->frch_last =
    seg_info (data_section)->frchainP->frch_last;
  seg_info (data_section)->frchainP = 0;
#else
  fixS *tmp;

  text_last_frag->fr_next = data_frag_root;
  text_last_frag = data_last_frag;
  data_last_frag = NULL;
  data_frag_root = NULL;
  if (text_fix_root)
    {
      for (tmp = text_fix_root; tmp->fx_next; tmp = tmp->fx_next);;
      tmp->fx_next = data_fix_root;
      text_fix_tail = data_fix_tail;
    }
  else
    text_fix_root = data_fix_root;
  data_fix_root = NULL;
#endif
}
#endif /* BFD_ASSEMBLER || (! BFD && ! OBJ_AOUT)  */

#if !defined (BFD_ASSEMBLER) && !defined (BFD)
static void
relax_and_size_all_segments ()
{
  fragS *fragP;

  relax_segment (text_frag_root, SEG_TEXT);
  relax_segment (data_frag_root, SEG_DATA);
  relax_segment (bss_frag_root, SEG_BSS);

  /* Now the addresses of frags are correct within the segment.  */
  know (text_last_frag->fr_type == rs_fill && text_last_frag->fr_offset == 0);
  H_SET_TEXT_SIZE (&headers, text_last_frag->fr_address);
  text_last_frag->fr_address = H_GET_TEXT_SIZE (&headers);

  /* Join the 2 segments into 1 huge segment.
     To do this, re-compute every rn_address in the SEG_DATA frags.
     Then join the data frags after the text frags.

     Determine a_data [length of data segment].  */
  if (data_frag_root)
    {
      register relax_addressT slide;

      know ((text_last_frag->fr_type == rs_fill)
	    && (text_last_frag->fr_offset == 0));

      H_SET_DATA_SIZE (&headers, data_last_frag->fr_address);
      data_last_frag->fr_address = H_GET_DATA_SIZE (&headers);
      slide = H_GET_TEXT_SIZE (&headers);	/* & in file of the data segment.  */
#ifdef OBJ_BOUT
#define RoundUp(N,S) (((N)+(S)-1)&-(S))
      /* For b.out: If the data section has a strict alignment
	 requirement, its load address in the .o file will be
	 rounded up from the size of the text section.  These
	 two values are *not* the same!  Similarly for the bss
	 section....  */
      slide = RoundUp (slide, 1 << section_alignment[SEG_DATA]);
#endif

      for (fragP = data_frag_root; fragP; fragP = fragP->fr_next)
	fragP->fr_address += slide;

      know (text_last_frag != 0);
      text_last_frag->fr_next = data_frag_root;
    }
  else
    {
      H_SET_DATA_SIZE (&headers, 0);
    }

#ifdef OBJ_BOUT
  /* See above comments on b.out data section address.  */
  {
    long bss_vma;
    if (data_last_frag == 0)
      bss_vma = H_GET_TEXT_SIZE (&headers);
    else
      bss_vma = data_last_frag->fr_address;
    bss_vma = RoundUp (bss_vma, 1 << section_alignment[SEG_BSS]);
    bss_address_frag.fr_address = bss_vma;
  }
#else /* ! OBJ_BOUT  */
  bss_address_frag.fr_address = (H_GET_TEXT_SIZE (&headers) +
				 H_GET_DATA_SIZE (&headers));

#endif /* ! OBJ_BOUT  */

  /* Slide all the frags.  */
  if (bss_frag_root)
    {
      relax_addressT slide = bss_address_frag.fr_address;

      for (fragP = bss_frag_root; fragP; fragP = fragP->fr_next)
	fragP->fr_address += slide;
    }

  if (bss_last_frag)
    H_SET_BSS_SIZE (&headers,
		    bss_last_frag->fr_address - bss_frag_root->fr_address);
  else
    H_SET_BSS_SIZE (&headers, 0);
}
#endif /* ! BFD_ASSEMBLER && ! BFD  */

#if defined (BFD_ASSEMBLER) || !defined (BFD)

#ifdef BFD_ASSEMBLER
static void
set_symtab ()
{
  int nsyms;
  asymbol **asympp;
  symbolS *symp;
  boolean result;
  extern PTR bfd_alloc PARAMS ((bfd *, size_t));

  /* Count symbols.  We can't rely on a count made by the loop in
     write_object_file, because *_frob_file may add a new symbol or
     two.  */
  nsyms = 0;
  for (symp = symbol_rootP; symp; symp = symbol_next (symp))
    nsyms++;

  if (nsyms)
    {
      int i;

      asympp = (asymbol **) bfd_alloc (stdoutput,
				       nsyms * sizeof (asymbol *));
      symp = symbol_rootP;
      for (i = 0; i < nsyms; i++, symp = symbol_next (symp))
	{
	  asympp[i] = symbol_get_bfdsym (symp);
	  symbol_mark_written (symp);
	}
    }
  else
    asympp = 0;
  result = bfd_set_symtab (stdoutput, asympp, nsyms);
  assert (result == true);
  symbol_table_frozen = 1;
}
#endif

#if defined (BFD_ASSEMBLER) && defined (OBJ_COFF) && defined (TE_GO32)
static void
set_segment_vma (abfd, sec, xxx)
     bfd *abfd;
     asection *sec;
     PTR xxx ATTRIBUTE_UNUSED;
{
  static bfd_vma addr = 0;

  bfd_set_section_vma (abfd, sec, addr);
  addr += bfd_section_size (abfd, sec);
}
#endif /* BFD_ASSEMBLER && OBJ_COFF && !TE_PE  */

/* Finish the subsegments.  After every sub-segment, we fake an
   ".align ...".  This conforms to BSD4.2 brane-damage.  We then fake
   ".fill 0" because that is the kind of frag that requires least
   thought.  ".align" frags like to have a following frag since that
   makes calculating their intended length trivial.  */

#ifndef SUB_SEGMENT_ALIGN
#ifdef BFD_ASSEMBLER
#define SUB_SEGMENT_ALIGN(SEG) (0)
#else
#define SUB_SEGMENT_ALIGN(SEG) (2)
#endif
#endif

void
subsegs_finish ()
{
  struct frchain *frchainP;

  for (frchainP = frchain_root; frchainP; frchainP = frchainP->frch_next)
    {
      int alignment;

      subseg_set (frchainP->frch_seg, frchainP->frch_subseg);

      /* This now gets called even if we had errors.  In that case,
         any alignment is meaningless, and, moreover, will look weird
         if we are generating a listing.  */
      alignment = had_errors () ? 0 : SUB_SEGMENT_ALIGN (now_seg);

      /* The last subsegment gets an aligment corresponding to the
	 alignment of the section.  This allows proper nop-filling
	 at the end of code-bearing sections.  */
      if (!frchainP->frch_next || frchainP->frch_next->frch_seg != now_seg)
	alignment = get_recorded_alignment (now_seg);

      if (subseg_text_p (now_seg))
	frag_align_code (alignment, 0);
      else
	frag_align (alignment, 0, 0);

      /* frag_align will have left a new frag.
	 Use this last frag for an empty ".fill".

	 For this segment ...
	 Create a last frag. Do not leave a "being filled in frag".  */
      frag_wane (frag_now);
      frag_now->fr_fix = 0;
      know (frag_now->fr_next == NULL);
    }
}

/* Write the object file.  */

void
write_object_file ()
{
#if ! defined (BFD_ASSEMBLER) || ! defined (WORKING_DOT_WORD)
  fragS *fragP;			/* Track along all frags.  */
#endif

  /* Do we really want to write it?  */
  {
    int n_warns, n_errs;
    n_warns = had_warnings ();
    n_errs = had_errors ();
    /* The -Z flag indicates that an object file should be generated,
       regardless of warnings and errors.  */
    if (flag_always_generate_output)
      {
	if (n_warns || n_errs)
	  as_warn (_("%d error%s, %d warning%s, generating bad object file.\n"),
		   n_errs, n_errs == 1 ? "" : "s",
		   n_warns, n_warns == 1 ? "" : "s");
      }
    else
      {
	if (n_errs)
	  as_fatal (_("%d error%s, %d warning%s, no object file generated.\n"),
		    n_errs, n_errs == 1 ? "" : "s",
		    n_warns, n_warns == 1 ? "" : "s");
      }
  }

#ifdef	OBJ_VMS
  /* Under VMS we try to be compatible with VAX-11 "C".  Thus, we call
     a routine to check for the definition of the procedure "_main",
     and if so -- fix it up so that it can be program entry point.  */
  vms_check_for_main ();
#endif /* OBJ_VMS  */

  /* From now on, we don't care about sub-segments.  Build one frag chain
     for each segment. Linked thru fr_next.  */

#ifdef BFD_ASSEMBLER
  /* Remove the sections created by gas for its own purposes.  */
  {
    asection **seclist, *sec;
    int i;

    seclist = &stdoutput->sections;
    while (seclist && *seclist)
      {
	sec = *seclist;
	while (sec == reg_section || sec == expr_section)
	  {
	    sec = sec->next;
	    *seclist = sec;
	    stdoutput->section_count--;
	    if (!sec)
	      break;
	  }
	if (*seclist)
	  seclist = &(*seclist)->next;
      }
    i = 0;
    bfd_map_over_sections (stdoutput, renumber_sections, &i);
  }

  bfd_map_over_sections (stdoutput, chain_frchains_together, (char *) 0);
#else
  remove_subsegs (frchain_root, SEG_TEXT, &text_frag_root, &text_last_frag);
  remove_subsegs (data0_frchainP, SEG_DATA, &data_frag_root, &data_last_frag);
  remove_subsegs (bss0_frchainP, SEG_BSS, &bss_frag_root, &bss_last_frag);
#endif

  /* We have two segments. If user gave -R flag, then we must put the
     data frags into the text segment. Do this before relaxing so
     we know to take advantage of -R and make shorter addresses.  */
#if !defined (OBJ_AOUT) || defined (BFD_ASSEMBLER)
  if (flag_readonly_data_in_text)
    {
      merge_data_into_text ();
    }
#endif

#ifdef BFD_ASSEMBLER
  bfd_map_over_sections (stdoutput, relax_and_size_seg, (char *) 0);
#else
  relax_and_size_all_segments ();
#endif /* BFD_ASSEMBLER  */

#if defined (BFD_ASSEMBLER) && defined (OBJ_COFF) && defined (TE_GO32)
  /* Now that the segments have their final sizes, run through the
     sections and set their vma and lma. !BFD gas sets them, and BFD gas
     should too. Currently, only DJGPP uses this code, but other
     COFF targets may need to execute this too.  */
  bfd_map_over_sections (stdoutput, set_segment_vma, (char *) 0);
#endif

#ifndef BFD_ASSEMBLER
  /* Crawl the symbol chain.

     For each symbol whose value depends on a frag, take the address of
     that frag and subsume it into the value of the symbol.
     After this, there is just one way to lookup a symbol value.
     Values are left in their final state for object file emission.
     We adjust the values of 'L' local symbols, even if we do
     not intend to emit them to the object file, because their values
     are needed for fix-ups.

     Unless we saw a -L flag, remove all symbols that begin with 'L'
     from the symbol chain.  (They are still pointed to by the fixes.)

     Count the remaining symbols.
     Assign a symbol number to each symbol.
     Count the number of string-table chars we will emit.
     Put this info into the headers as appropriate.  */
  know (zero_address_frag.fr_address == 0);
  string_byte_count = sizeof (string_byte_count);

  obj_crawl_symbol_chain (&headers);

  if (string_byte_count == sizeof (string_byte_count))
    string_byte_count = 0;

  H_SET_STRING_SIZE (&headers, string_byte_count);

  /* Addresses of frags now reflect addresses we use in the object file.
     Symbol values are correct.
     Scan the frags, converting any ".org"s and ".align"s to ".fill"s.
     Also converting any machine-dependent frags using md_convert_frag();  */
  subseg_change (SEG_TEXT, 0);

  for (fragP = text_frag_root; fragP; fragP = fragP->fr_next)
    {
      /* At this point we have linked all the frags into a single
         chain.  However, cvt_frag_to_fill may call md_convert_frag
         which may call fix_new.  We need to ensure that fix_new adds
         the fixup to the right section.  */
      if (fragP == data_frag_root)
	subseg_change (SEG_DATA, 0);

      cvt_frag_to_fill (&headers, SEG_TEXT, fragP);

      /* Some assert macros don't work with # directives mixed in.  */
#ifndef NDEBUG
      if (!(fragP->fr_next == NULL
#ifdef OBJ_BOUT
	    || fragP->fr_next == data_frag_root
#endif
	    || ((fragP->fr_next->fr_address - fragP->fr_address)
		== (fragP->fr_fix + fragP->fr_offset * fragP->fr_var))))
	abort ();
#endif
    }
#endif /* ! BFD_ASSEMBLER  */

#ifndef WORKING_DOT_WORD
  {
    struct broken_word *lie;
    struct broken_word **prevP;

    prevP = &broken_words;
    for (lie = broken_words; lie; lie = lie->next_broken_word)
      if (!lie->added)
	{
	  expressionS exp;

	  subseg_change (lie->seg, lie->subseg);
	  exp.X_op = O_subtract;
	  exp.X_add_symbol = lie->add;
	  exp.X_op_symbol = lie->sub;
	  exp.X_add_number = lie->addnum;
#ifdef BFD_ASSEMBLER
#ifdef TC_CONS_FIX_NEW
	  TC_CONS_FIX_NEW (lie->frag,
			   lie->word_goes_here - lie->frag->fr_literal,
			   2, &exp);
#else
	  fix_new_exp (lie->frag,
		       lie->word_goes_here - lie->frag->fr_literal,
		       2, &exp, 0, BFD_RELOC_16);
#endif
#else
#if defined(TC_SPARC) || defined(TC_A29K) || defined(NEED_FX_R_TYPE)
	  fix_new_exp (lie->frag,
		       lie->word_goes_here - lie->frag->fr_literal,
		       2, &exp, 0, NO_RELOC);
#else
#ifdef TC_NS32K
	  fix_new_ns32k_exp (lie->frag,
			     lie->word_goes_here - lie->frag->fr_literal,
			     2, &exp, 0, 0, 2, 0, 0);
#else
	  fix_new_exp (lie->frag,
		       lie->word_goes_here - lie->frag->fr_literal,
		       2, &exp, 0, 0);
#endif /* TC_NS32K  */
#endif /* TC_SPARC|TC_A29K|NEED_FX_R_TYPE  */
#endif /* BFD_ASSEMBLER  */
	  *prevP = lie->next_broken_word;
	}
      else
	prevP = &(lie->next_broken_word);

    for (lie = broken_words; lie;)
      {
	struct broken_word *untruth;
	char *table_ptr;
	addressT table_addr;
	addressT from_addr, to_addr;
	int n, m;

	subseg_change (lie->seg, lie->subseg);
	fragP = lie->dispfrag;

	/* Find out how many broken_words go here.  */
	n = 0;
	for (untruth = lie;
	     untruth && untruth->dispfrag == fragP;
	     untruth = untruth->next_broken_word)
	  if (untruth->added == 1)
	    n++;

	table_ptr = lie->dispfrag->fr_opcode;
	table_addr = (lie->dispfrag->fr_address
		      + (table_ptr - lie->dispfrag->fr_literal));
	/* Create the jump around the long jumps.  This is a short
	   jump from table_ptr+0 to table_ptr+n*long_jump_size.  */
	from_addr = table_addr;
	to_addr = table_addr + md_short_jump_size + n * md_long_jump_size;
	md_create_short_jump (table_ptr, from_addr, to_addr, lie->dispfrag,
			      lie->add);
	table_ptr += md_short_jump_size;
	table_addr += md_short_jump_size;

	for (m = 0;
	     lie && lie->dispfrag == fragP;
	     m++, lie = lie->next_broken_word)
	  {
	    if (lie->added == 2)
	      continue;
	    /* Patch the jump table.  */
	    /* This is the offset from ??? to table_ptr+0.  */
	    to_addr = table_addr - S_GET_VALUE (lie->sub);
#ifdef BFD_ASSEMBLER
	    to_addr -= symbol_get_frag (lie->sub)->fr_address;
#endif
#ifdef TC_CHECK_ADJUSTED_BROKEN_DOT_WORD
	    TC_CHECK_ADJUSTED_BROKEN_DOT_WORD (to_addr, lie);
#endif
	    md_number_to_chars (lie->word_goes_here, to_addr, 2);
	    for (untruth = lie->next_broken_word;
		 untruth && untruth->dispfrag == fragP;
		 untruth = untruth->next_broken_word)
	      {
		if (untruth->use_jump == lie)
		  md_number_to_chars (untruth->word_goes_here, to_addr, 2);
	      }

	    /* Install the long jump.  */
	    /* This is a long jump from table_ptr+0 to the final target.  */
	    from_addr = table_addr;
	    to_addr = S_GET_VALUE (lie->add) + lie->addnum;
#ifdef BFD_ASSEMBLER
	    to_addr += symbol_get_frag (lie->add)->fr_address;
#endif
	    md_create_long_jump (table_ptr, from_addr, to_addr, lie->dispfrag,
				 lie->add);
	    table_ptr += md_long_jump_size;
	    table_addr += md_long_jump_size;
	  }
      }
  }
#endif /* not WORKING_DOT_WORD  */

#ifndef BFD_ASSEMBLER
#ifndef	OBJ_VMS
  {				/* not vms  */
    char *the_object_file;
    long object_file_size;
    /* Scan every FixS performing fixups. We had to wait until now to
       do this because md_convert_frag() may have made some fixSs.  */
    int trsize, drsize;

    subseg_change (SEG_TEXT, 0);
    trsize = md_reloc_size * fixup_segment (text_fix_root, SEG_TEXT);
    subseg_change (SEG_DATA, 0);
    drsize = md_reloc_size * fixup_segment (data_fix_root, SEG_DATA);
    H_SET_RELOCATION_SIZE (&headers, trsize, drsize);

    /* FIXME: Move this stuff into the pre-write-hook.  */
    H_SET_MAGIC_NUMBER (&headers, magic_number_for_object_file);
    H_SET_ENTRY_POINT (&headers, 0);

    obj_pre_write_hook (&headers);	/* Extra coff stuff.  */

    object_file_size = H_GET_FILE_SIZE (&headers);
    next_object_file_charP = the_object_file = xmalloc (object_file_size);

    output_file_create (out_file_name);

    obj_header_append (&next_object_file_charP, &headers);

    know ((next_object_file_charP - the_object_file)
	  == H_GET_HEADER_SIZE (&headers));

    /* Emit code.  */
    for (fragP = text_frag_root; fragP; fragP = fragP->fr_next)
      {
	register long count;
	register char *fill_literal;
	register long fill_size;

	PROGRESS (1);
	know (fragP->fr_type == rs_fill);
	append (&next_object_file_charP, fragP->fr_literal,
		(unsigned long) fragP->fr_fix);
	fill_literal = fragP->fr_literal + fragP->fr_fix;
	fill_size = fragP->fr_var;
	know (fragP->fr_offset >= 0);

	for (count = fragP->fr_offset; count; count--)
	  append (&next_object_file_charP, fill_literal,
		  (unsigned long) fill_size);
      }

    know ((next_object_file_charP - the_object_file)
	  == (H_GET_HEADER_SIZE (&headers)
	      + H_GET_TEXT_SIZE (&headers)
	      + H_GET_DATA_SIZE (&headers)));

    /* Emit relocations.  */
    obj_emit_relocations (&next_object_file_charP, text_fix_root,
			  (relax_addressT) 0);
    know ((next_object_file_charP - the_object_file)
	  == (H_GET_HEADER_SIZE (&headers)
	      + H_GET_TEXT_SIZE (&headers)
	      + H_GET_DATA_SIZE (&headers)
	      + H_GET_TEXT_RELOCATION_SIZE (&headers)));
#ifdef TC_I960
    /* Make addresses in data relocation directives relative to beginning of
       first data fragment, not end of last text fragment:  alignment of the
       start of the data segment may place a gap between the segments.  */
    obj_emit_relocations (&next_object_file_charP, data_fix_root,
			  data0_frchainP->frch_root->fr_address);
#else /* TC_I960  */
    obj_emit_relocations (&next_object_file_charP, data_fix_root,
			  text_last_frag->fr_address);
#endif /* TC_I960  */

    know ((next_object_file_charP - the_object_file)
	  == (H_GET_HEADER_SIZE (&headers)
	      + H_GET_TEXT_SIZE (&headers)
	      + H_GET_DATA_SIZE (&headers)
	      + H_GET_TEXT_RELOCATION_SIZE (&headers)
	      + H_GET_DATA_RELOCATION_SIZE (&headers)));

    /* Emit line number entries.  */
    OBJ_EMIT_LINENO (&next_object_file_charP, lineno_rootP, the_object_file);
    know ((next_object_file_charP - the_object_file)
	  == (H_GET_HEADER_SIZE (&headers)
	      + H_GET_TEXT_SIZE (&headers)
	      + H_GET_DATA_SIZE (&headers)
	      + H_GET_TEXT_RELOCATION_SIZE (&headers)
	      + H_GET_DATA_RELOCATION_SIZE (&headers)
	      + H_GET_LINENO_SIZE (&headers)));

    /* Emit symbols.  */
    obj_emit_symbols (&next_object_file_charP, symbol_rootP);
    know ((next_object_file_charP - the_object_file)
	  == (H_GET_HEADER_SIZE (&headers)
	      + H_GET_TEXT_SIZE (&headers)
	      + H_GET_DATA_SIZE (&headers)
	      + H_GET_TEXT_RELOCATION_SIZE (&headers)
	      + H_GET_DATA_RELOCATION_SIZE (&headers)
	      + H_GET_LINENO_SIZE (&headers)
	      + H_GET_SYMBOL_TABLE_SIZE (&headers)));

    /* Emit strings.  */
    if (string_byte_count > 0)
      obj_emit_strings (&next_object_file_charP);

#ifdef BFD_HEADERS
    bfd_seek (stdoutput, 0, 0);
    bfd_write (the_object_file, 1, object_file_size, stdoutput);
#else

    /* Write the data to the file.  */
    output_file_append (the_object_file, object_file_size, out_file_name);
    free (the_object_file);
#endif
  }
#else /* OBJ_VMS  */
  /* Now do the VMS-dependent part of writing the object file.  */
  vms_write_object_file (H_GET_TEXT_SIZE (&headers),
			 H_GET_DATA_SIZE (&headers),
			 H_GET_BSS_SIZE (&headers),
			 text_frag_root, data_frag_root);
#endif /* OBJ_VMS  */
#else /* BFD_ASSEMBLER  */

  /* Resolve symbol values.  This needs to be done before processing
     the relocations.  */
  if (symbol_rootP)
    {
      symbolS *symp;

      for (symp = symbol_rootP; symp; symp = symbol_next (symp))
	resolve_symbol_value (symp, 1);
    }
  resolve_local_symbol_values ();

  PROGRESS (1);

#ifdef tc_frob_file_before_adjust
  tc_frob_file_before_adjust ();
#endif
#ifdef obj_frob_file_before_adjust
  obj_frob_file_before_adjust ();
#endif

  bfd_map_over_sections (stdoutput, adjust_reloc_syms, (char *) 0);

  /* Set up symbol table, and write it out.  */
  if (symbol_rootP)
    {
      symbolS *symp;

      for (symp = symbol_rootP; symp; symp = symbol_next (symp))
	{
	  int punt = 0;
	  const char *name;

	  if (symbol_mri_common_p (symp))
	    {
	      if (S_IS_EXTERNAL (symp))
		as_bad (_("%s: global symbols not supported in common sections"),
			S_GET_NAME (symp));
	      symbol_remove (symp, &symbol_rootP, &symbol_lastP);
	      continue;
	    }

	  name = S_GET_NAME (symp);
	  if (name)
	    {
	      const char *name2 =
		decode_local_label_name ((char *) S_GET_NAME (symp));
	      /* They only differ if `name' is a fb or dollar local
		 label name.  */
	      if (name2 != name && ! S_IS_DEFINED (symp))
		as_bad (_("local label %s is not defined"), name2);
	    }

	  /* Do it again, because adjust_reloc_syms might introduce
	     more symbols.  They'll probably only be section symbols,
	     but they'll still need to have the values computed.  */
	  resolve_symbol_value (symp, 1);

	  /* Skip symbols which were equated to undefined or common
             symbols.  */
	  if (symbol_equated_p (symp)
	      && (! S_IS_DEFINED (symp) || S_IS_COMMON (symp)))
	    {
	      symbol_remove (symp, &symbol_rootP, &symbol_lastP);
	      continue;
	    }

	  /* So far, common symbols have been treated like undefined symbols.
	     Put them in the common section now.  */
	  if (S_IS_DEFINED (symp) == 0
	      && S_GET_VALUE (symp) != 0)
	    S_SET_SEGMENT (symp, bfd_com_section_ptr);
#if 0
	  printf ("symbol `%s'\n\t@%x: value=%d flags=%x seg=%s\n",
		  S_GET_NAME (symp), symp,
		  S_GET_VALUE (symp),
		  symbol_get_bfdsym (symp)->flags,
		  segment_name (S_GET_SEGMENT (symp)));
#endif

#ifdef obj_frob_symbol
	  obj_frob_symbol (symp, punt);
#endif
#ifdef tc_frob_symbol
	  if (! punt || symbol_used_in_reloc_p (symp))
	    tc_frob_symbol (symp, punt);
#endif

	  /* If we don't want to keep this symbol, splice it out of
	     the chain now.  If EMIT_SECTION_SYMBOLS is 0, we never
	     want section symbols.  Otherwise, we skip local symbols
	     and symbols that the frob_symbol macros told us to punt,
	     but we keep such symbols if they are used in relocs.  */
	  if ((! EMIT_SECTION_SYMBOLS
	       && symbol_section_p (symp))
	      /* Note that S_IS_EXTERN and S_IS_LOCAL are not always
		 opposites.  Sometimes the former checks flags and the
		 latter examines the name...  */
	      || (!S_IS_EXTERN (symp)
		  && (S_IS_LOCAL (symp) || punt)
		  && ! symbol_used_in_reloc_p (symp)))
	    {
	      symbol_remove (symp, &symbol_rootP, &symbol_lastP);

	      /* After symbol_remove, symbol_next(symp) still returns
		 the one that came after it in the chain.  So we don't
		 need to do any extra cleanup work here.  */
	      continue;
	    }

	  /* Make sure we really got a value for the symbol.  */
	  if (! symbol_resolved_p (symp))
	    {
	      as_bad (_("can't resolve value for symbol \"%s\""),
		      S_GET_NAME (symp));
	      symbol_mark_resolved (symp);
	    }

	  /* Set the value into the BFD symbol.  Up til now the value
	     has only been kept in the gas symbolS struct.  */
	  symbol_get_bfdsym (symp)->value = S_GET_VALUE (symp);
	}
    }

  PROGRESS (1);

  /* Now do any format-specific adjustments to the symbol table, such
     as adding file symbols.  */
#ifdef tc_adjust_symtab
  tc_adjust_symtab ();
#endif
#ifdef obj_adjust_symtab
  obj_adjust_symtab ();
#endif

  /* Now that all the sizes are known, and contents correct, we can
     start writing to the file.  */
  set_symtab ();

  /* If *_frob_file changes the symbol value at this point, it is
     responsible for moving the changed value into symp->bsym->value
     as well.  Hopefully all symbol value changing can be done in
     *_frob_symbol.  */
#ifdef tc_frob_file
  tc_frob_file ();
#endif
#ifdef obj_frob_file
  obj_frob_file ();
#endif

  bfd_map_over_sections (stdoutput, write_relocs, (char *) 0);

#ifdef tc_frob_file_after_relocs
  tc_frob_file_after_relocs ();
#endif
#ifdef obj_frob_file_after_relocs
  obj_frob_file_after_relocs ();
#endif

  bfd_map_over_sections (stdoutput, write_contents, (char *) 0);
#endif /* BFD_ASSEMBLER  */
}
#endif /* ! BFD  */

#ifdef TC_GENERIC_RELAX_TABLE

static int is_dnrange PARAMS ((fragS *, fragS *));

/* Subroutines of relax_segment.  */

static int
is_dnrange (f1, f2)
     fragS *f1;
     fragS *f2;
{
  addressT f2addr;

  f2addr = f2->fr_address;
  for (; f1; f1 = f1->fr_next)
    {
      if (f1->fr_next == f2)
	return 1;
      if (f1->fr_address > f2addr)
	break;
    }
  return 0;
}

/* Relax a fragment by scanning TC_GENERIC_RELAX_TABLE.  */

long
relax_frag (segment, fragP, stretch)
     segT segment;
     fragS *fragP;
     long stretch;
{
  const relax_typeS *this_type;
  const relax_typeS *start_type;
  relax_substateT next_state;
  relax_substateT this_state;
  long aim, target, growth;
  symbolS *symbolP = fragP->fr_symbol;
  long offset = fragP->fr_offset;
  /* Recompute was_address by undoing "+= stretch" done by relax_segment.  */
  unsigned long was_address = fragP->fr_address - stretch;
  unsigned long address = fragP->fr_address;
  const relax_typeS *table = TC_GENERIC_RELAX_TABLE;

  this_state = fragP->fr_subtype;
  start_type = this_type = table + this_state;
  target = offset;

  if (symbolP)
    {
      fragS *sym_frag;

      sym_frag = symbol_get_frag (symbolP);

#ifndef DIFF_EXPR_OK
#if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER)
      know ((S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE)
	    || (S_GET_SEGMENT (symbolP) == SEG_DATA)
	    || (S_GET_SEGMENT (symbolP) == SEG_BSS)
	    || (S_GET_SEGMENT (symbolP) == SEG_TEXT));
#endif
      know (sym_frag != NULL);
#endif
      know (!(S_GET_SEGMENT (symbolP) == absolute_section)
	    || sym_frag == &zero_address_frag);
      target += S_GET_VALUE (symbolP) + sym_frag->fr_address;

      /* If frag has yet to be reached on this pass,
	 assume it will move by STRETCH just as we did.
	 If this is not so, it will be because some frag
	 between grows, and that will force another pass.

	 Beware zero-length frags.  */

      if (stretch != 0
	  && S_GET_SEGMENT (symbolP) == segment
	  && (sym_frag->fr_address > was_address
	      || (sym_frag->fr_address == was_address
		  && is_dnrange (fragP, sym_frag))))
	{
	  target += stretch;
	}
    }

  aim = target - address - fragP->fr_fix;
#ifdef TC_PCREL_ADJUST
  /* Currently only the ns32k family needs this.  */
  aim += TC_PCREL_ADJUST (fragP);
/* #else */
  /* This machine doesn't want to use pcrel_adjust.
     In that case, pcrel_adjust should be zero.  */
#if 0
  assert (fragP->fr_targ.ns32k.pcrel_adjust == 0);
#endif
#endif
#ifdef md_prepare_relax_scan /* formerly called M68K_AIM_KLUDGE  */
  md_prepare_relax_scan (fragP, address, aim, this_state, this_type);
#endif

  if (aim < 0)
    {
      /* Look backwards.  */
      for (next_state = this_type->rlx_more; next_state;)
	if (aim >= this_type->rlx_backward)
	  next_state = 0;
	else
	  {
	    /* Grow to next state.  */
	    this_state = next_state;
	    this_type = table + this_state;
	    next_state = this_type->rlx_more;
	  }
    }
  else
    {
      /* Look forwards.  */
      for (next_state = this_type->rlx_more; next_state;)
	if (aim <= this_type->rlx_forward)
	  next_state = 0;
	else
	  {
	    /* Grow to next state.  */
	    this_state = next_state;
	    this_type = table + this_state;
	    next_state = this_type->rlx_more;
	  }
    }

  growth = this_type->rlx_length - start_type->rlx_length;
  if (growth != 0)
    fragP->fr_subtype = this_state;
  return growth;
}

#endif /* defined (TC_GENERIC_RELAX_TABLE)  */

/* Relax_align. Advance location counter to next address that has 'alignment'
   lowest order bits all 0s, return size of adjustment made.  */
static relax_addressT
relax_align (address, alignment)
     register relax_addressT address;	/* Address now.  */
     register int alignment;	/* Alignment (binary).  */
{
  relax_addressT mask;
  relax_addressT new_address;

  mask = ~((~0) << alignment);
  new_address = (address + mask) & (~mask);
#ifdef LINKER_RELAXING_SHRINKS_ONLY
  if (linkrelax)
    /* We must provide lots of padding, so the linker can discard it
       when needed.  The linker will not add extra space, ever.  */
    new_address += (1 << alignment);
#endif
  return (new_address - address);
}

/* Now we have a segment, not a crowd of sub-segments, we can make
   fr_address values.

   Relax the frags.

   After this, all frags in this segment have addresses that are correct
   within the segment. Since segments live in different file addresses,
   these frag addresses may not be the same as final object-file
   addresses.  */

void
relax_segment (segment_frag_root, segment)
     struct frag *segment_frag_root;
     segT segment;
{
  register struct frag *fragP;
  register relax_addressT address;
#if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER)
  know (segment == SEG_DATA || segment == SEG_TEXT || segment == SEG_BSS);
#endif
  /* In case md_estimate_size_before_relax() wants to make fixSs.  */
  subseg_change (segment, 0);

  /* For each frag in segment: count and store  (a 1st guess of)
     fr_address.  */
  address = 0;
  for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next)
    {
      fragP->fr_address = address;
      address += fragP->fr_fix;

      switch (fragP->fr_type)
	{
	case rs_fill:
	  address += fragP->fr_offset * fragP->fr_var;
	  break;

	case rs_align:
	case rs_align_code:
	case rs_align_test:
	  {
	    addressT offset = relax_align (address, (int) fragP->fr_offset);

	    if (fragP->fr_subtype != 0 && offset > fragP->fr_subtype)
	      offset = 0;

	    if (offset % fragP->fr_var != 0)
	      {
		as_bad (_("alignment padding (%lu bytes) not a multiple of %ld"),
			(unsigned long) offset, (long) fragP->fr_var);
		offset -= (offset % fragP->fr_var);
	      }

	    address += offset;
	  }
	  break;

	case rs_org:
	case rs_space:
	  /* Assume .org is nugatory. It will grow with 1st relax.  */
	  break;

	case rs_machine_dependent:
	  address += md_estimate_size_before_relax (fragP, segment);
	  break;

#ifndef WORKING_DOT_WORD
	  /* Broken words don't concern us yet.  */
	case rs_broken_word:
	  break;
#endif

	case rs_leb128:
	  /* Initial guess is always 1; doing otherwise can result in
	     stable solutions that are larger than the minimum.  */
	  address += fragP->fr_offset = 1;
	  break;

	case rs_cfa:
	  address += eh_frame_estimate_size_before_relax (fragP);
	  break;

	case rs_dwarf2dbg:
	  address += dwarf2dbg_estimate_size_before_relax (fragP);
	  break;

	default:
	  BAD_CASE (fragP->fr_type);
	  break;
	}
    }

  /* Do relax().  */
  {
    long stretch;	/* May be any size, 0 or negative.  */
    /* Cumulative number of addresses we have relaxed this pass.
       We may have relaxed more than one address.  */
    long stretched;	/* Have we stretched on this pass?  */
    /* This is 'cuz stretch may be zero, when, in fact some piece of code
       grew, and another shrank.  If a branch instruction doesn't fit anymore,
       we could be scrod.  */

    do
      {
	stretch = stretched = 0;

	for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next)
	  {
	    long growth = 0;
	    addressT was_address;
	    offsetT offset;
	    symbolS *symbolP;

	    was_address = fragP->fr_address;
	    address = fragP->fr_address += stretch;
	    symbolP = fragP->fr_symbol;
	    offset = fragP->fr_offset;

	    switch (fragP->fr_type)
	      {
	      case rs_fill:	/* .fill never relaxes.  */
		growth = 0;
		break;

#ifndef WORKING_DOT_WORD
		/* JF:  This is RMS's idea.  I do *NOT* want to be blamed
		   for it I do not want to write it.  I do not want to have
		   anything to do with it.  This is not the proper way to
		   implement this misfeature.  */
	      case rs_broken_word:
		{
		  struct broken_word *lie;
		  struct broken_word *untruth;

		  /* Yes this is ugly (storing the broken_word pointer
		     in the symbol slot).  Still, this whole chunk of
		     code is ugly, and I don't feel like doing anything
		     about it.  Think of it as stubbornness in action.  */
		  growth = 0;
		  for (lie = (struct broken_word *) (fragP->fr_symbol);
		       lie && lie->dispfrag == fragP;
		       lie = lie->next_broken_word)
		    {

		      if (lie->added)
			continue;

		      offset = (symbol_get_frag (lie->add)->fr_address
				+ S_GET_VALUE (lie->add)
				+ lie->addnum
				- (symbol_get_frag (lie->sub)->fr_address
				   + S_GET_VALUE (lie->sub)));
		      if (offset <= -32768 || offset >= 32767)
			{
			  if (flag_warn_displacement)
			    {
			      char buf[50];
			      sprint_value (buf, (addressT) lie->addnum);
			      as_warn (_(".word %s-%s+%s didn't fit"),
				       S_GET_NAME (lie->add),
				       S_GET_NAME (lie->sub),
				       buf);
			    }
			  lie->added = 1;
			  if (fragP->fr_subtype == 0)
			    {
			      fragP->fr_subtype++;
			      growth += md_short_jump_size;
			    }
			  for (untruth = lie->next_broken_word;
			       untruth && untruth->dispfrag == lie->dispfrag;
			       untruth = untruth->next_broken_word)
			    if ((symbol_get_frag (untruth->add)
				 == symbol_get_frag (lie->add))
				&& (S_GET_VALUE (untruth->add)
				    == S_GET_VALUE (lie->add)))
			      {
				untruth->added = 2;
				untruth->use_jump = lie;
			      }
			  growth += md_long_jump_size;
			}
		    }

		  break;
		}		/* case rs_broken_word  */
#endif
	      case rs_align:
	      case rs_align_code:
	      case rs_align_test:
		{
		  addressT oldoff, newoff;

		  oldoff = relax_align (was_address + fragP->fr_fix,
					(int) offset);
		  newoff = relax_align (address + fragP->fr_fix,
					(int) offset);

		  if (fragP->fr_subtype != 0)
		    {
		      if (oldoff > fragP->fr_subtype)
			oldoff = 0;
		      if (newoff > fragP->fr_subtype)
			newoff = 0;
		    }

		  growth = newoff - oldoff;
		}
		break;

	      case rs_org:
		{
		  long target = offset;
		  long after;

		  if (symbolP)
		    {
#if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER)
		      know ((S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE)
			    || (S_GET_SEGMENT (symbolP) == SEG_DATA)
			    || (S_GET_SEGMENT (symbolP) == SEG_TEXT)
			    || S_GET_SEGMENT (symbolP) == SEG_BSS);
		      know (symbolP->sy_frag);
		      know (!(S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE)
			    || (symbolP->sy_frag == &zero_address_frag));
#endif
		      target += (S_GET_VALUE (symbolP)
				 + symbol_get_frag (symbolP)->fr_address);
		    }		/* if we have a symbol  */

		  know (fragP->fr_next);
		  after = fragP->fr_next->fr_address;
		  growth = target - after;
		  if (growth < 0)
		    {
		      /* Growth may be negative, but variable part of frag
			 cannot have fewer than 0 chars.  That is, we can't
			 .org backwards.  */
		      as_bad_where (fragP->fr_file, fragP->fr_line,
				    _("attempt to .org backwards ignored"));

		      /* We've issued an error message.  Change the
                         frag to avoid cascading errors.  */
		      fragP->fr_type = rs_align;
		      fragP->fr_subtype = 0;
		      fragP->fr_offset = 0;
		      fragP->fr_fix = after - address;
		      growth = stretch;
		    }

		  /* This is an absolute growth factor  */
		  growth -= stretch;
		  break;
		}

	      case rs_space:
		if (symbolP)
		  {
		    growth = S_GET_VALUE (symbolP);
		    if (symbol_get_frag (symbolP) != &zero_address_frag
			|| S_IS_COMMON (symbolP)
			|| ! S_IS_DEFINED (symbolP))
		      as_bad_where (fragP->fr_file, fragP->fr_line,
				    _(".space specifies non-absolute value"));
		    fragP->fr_symbol = 0;
		    if (growth < 0)
		      {
			as_warn (_(".space or .fill with negative value, ignored"));
			growth = 0;
		      }
		  }
		else
		  growth = 0;
		break;

	      case rs_machine_dependent:
#ifdef md_relax_frag
		growth = md_relax_frag (segment, fragP, stretch);
#else
#ifdef TC_GENERIC_RELAX_TABLE
		/* The default way to relax a frag is to look through
		   TC_GENERIC_RELAX_TABLE.  */
		growth = relax_frag (segment, fragP, stretch);
#endif /* TC_GENERIC_RELAX_TABLE  */
#endif
		break;

	      case rs_leb128:
		{
		  valueT value;
		  int size;

		  value = resolve_symbol_value (fragP->fr_symbol, 0);
		  size = sizeof_leb128 (value, fragP->fr_subtype);
		  growth = size - fragP->fr_offset;
		  fragP->fr_offset = size;
		}
		break;

	      case rs_cfa:
		growth = eh_frame_relax_frag (fragP);
		break;

	      case rs_dwarf2dbg:
		growth = dwarf2dbg_relax_frag (fragP);
		break;

	      default:
		BAD_CASE (fragP->fr_type);
		break;
	      }
	    if (growth)
	      {
		stretch += growth;
		stretched++;
	      }
	  }			/* For each frag in the segment.  */
      }
    while (stretched);		/* Until nothing further to relax.  */
  }				/* do_relax  */

  /* We now have valid fr_address'es for each frag.  */

  /* All fr_address's are correct, relative to their own segment.
     We have made all the fixS we will ever make.  */
}

#if defined (BFD_ASSEMBLER) || (!defined (BFD) && !defined (OBJ_VMS))

#ifndef TC_RELOC_RTSYM_LOC_FIXUP
#define TC_RELOC_RTSYM_LOC_FIXUP(X) (1)
#endif

/* fixup_segment()

   Go through all the fixS's in a segment and see which ones can be
   handled now.  (These consist of fixS where we have since discovered
   the value of a symbol, or the address of the frag involved.)
   For each one, call md_apply_fix to put the fix into the frag data.

   Result is a count of how many relocation structs will be needed to
   handle the remaining fixS's that we couldn't completely handle here.
   These will be output later by emit_relocations().  */

static long
fixup_segment (fixP, this_segment_type)
     register fixS *fixP;
     segT this_segment_type;	/* N_TYPE bits for segment.  */
{
  long seg_reloc_count = 0;
  symbolS *add_symbolP;
  symbolS *sub_symbolP;
  valueT add_number;
  int size;
  char *place;
  long where;
  int pcrel, plt;
  fragS *fragP;
  segT add_symbol_segment = absolute_section;

  /* If the linker is doing the relaxing, we must not do any fixups.

     Well, strictly speaking that's not true -- we could do any that are
     PC-relative and don't cross regions that could change size.  And for the
     i960 (the only machine for which we've got a relaxing linker right now),
     we might be able to turn callx/callj into bal anyways in cases where we
     know the maximum displacement.  */
  if (linkrelax && TC_LINKRELAX_FIXUP (this_segment_type))
    {
      for (; fixP; fixP = fixP->fx_next)
	seg_reloc_count++;
      TC_ADJUST_RELOC_COUNT (fixP, seg_reloc_count);
      return seg_reloc_count;
    }

  for (; fixP; fixP = fixP->fx_next)
    {
#ifdef DEBUG5
      fprintf (stderr, "\nprocessing fixup:\n");
      print_fixup (fixP);
#endif

      fragP = fixP->fx_frag;
      know (fragP);
      where = fixP->fx_where;
      place = fragP->fr_literal + where;
      size = fixP->fx_size;
      add_symbolP = fixP->fx_addsy;
#ifdef TC_VALIDATE_FIX
      TC_VALIDATE_FIX (fixP, this_segment_type, skip);
#endif
      sub_symbolP = fixP->fx_subsy;
      add_number = fixP->fx_offset;
      pcrel = fixP->fx_pcrel;
      plt = fixP->fx_plt;

      if (add_symbolP != NULL
	  && symbol_mri_common_p (add_symbolP))
	{
	  know (add_symbolP->sy_value.X_op == O_symbol);
	  add_number += S_GET_VALUE (add_symbolP);
	  fixP->fx_offset = add_number;
	  add_symbolP = fixP->fx_addsy =
	    symbol_get_value_expression (add_symbolP)->X_add_symbol;
	}

      if (add_symbolP)
	add_symbol_segment = S_GET_SEGMENT (add_symbolP);

      if (sub_symbolP)
	{
	  resolve_symbol_value (sub_symbolP, 1);
	  if (add_symbolP == NULL || add_symbol_segment == absolute_section)
	    {
	      if (add_symbolP != NULL)
		{
		  add_number += S_GET_VALUE (add_symbolP);
		  add_symbolP = NULL;
		  fixP->fx_addsy = NULL;
		}

	      /* It's just -sym.  */
	      if (S_GET_SEGMENT (sub_symbolP) == absolute_section)
		{
		  add_number -= S_GET_VALUE (sub_symbolP);
		  fixP->fx_subsy = NULL;
		}
	      else if (pcrel
		       && S_GET_SEGMENT (sub_symbolP) == this_segment_type)
		{
		  /* Should try converting to a constant.  */
		  goto bad_sub_reloc;
		}
	      else
	      bad_sub_reloc:
		as_bad_where (fixP->fx_file, fixP->fx_line,
			      _("Negative of non-absolute symbol %s"),
			      S_GET_NAME (sub_symbolP));
	    }
	  else if (S_GET_SEGMENT (sub_symbolP) == add_symbol_segment
		   && SEG_NORMAL (add_symbol_segment))
	    {
	      /* Difference of 2 symbols from same segment.
		 Can't make difference of 2 undefineds: 'value' means
		 something different for N_UNDF.  */
#ifdef TC_I960
	      /* Makes no sense to use the difference of 2 arbitrary symbols
		 as the target of a call instruction.  */
	      if (fixP->fx_tcbit)
		as_bad_where (fixP->fx_file, fixP->fx_line,
			      _("callj to difference of 2 symbols"));
#endif /* TC_I960  */
	      add_number += S_GET_VALUE (add_symbolP) -
		S_GET_VALUE (sub_symbolP);

	      add_symbolP = NULL;
	      pcrel = 0;	/* No further pcrel processing.  */

	      /* Let the target machine make the final determination
		 as to whether or not a relocation will be needed to
		 handle this fixup.  */
	      if (!TC_FORCE_RELOCATION_SECTION (fixP, this_segment_type))
		{
		  fixP->fx_pcrel = 0;
		  fixP->fx_addsy = NULL;
		  fixP->fx_subsy = NULL;
		}
	    }
	  else
	    {
	      /* Different segments in subtraction.  */
	      know (!(S_IS_EXTERNAL (sub_symbolP)
		      && (S_GET_SEGMENT (sub_symbolP) == absolute_section)));

	      if ((S_GET_SEGMENT (sub_symbolP) == absolute_section))
		add_number -= S_GET_VALUE (sub_symbolP);

#ifdef DIFF_EXPR_OK
	      else if (S_GET_SEGMENT (sub_symbolP) == this_segment_type
#if 0
		       /* Do this even if it's already described as
			  pc-relative.  For example, on the m68k, an
			  operand of "pc@(foo-.-2)" should address
			  "foo" in a pc-relative mode.  */
		       && pcrel
#endif
		       )
		{
		  /* Make it pc-relative.  */
		  add_number += (MD_PCREL_FROM_SECTION (fixP, this_segment_type)
				 - S_GET_VALUE (sub_symbolP));
		  pcrel = 1;
		  fixP->fx_pcrel = 1;
		  sub_symbolP = 0;
		  fixP->fx_subsy = 0;
		}
#endif
#ifdef UNDEFINED_DIFFERENCE_OK
	      /* The PA needs this for PIC code generation.  We basically
		 don't want to do anything if we have the difference of two
		 symbols at this point.  */
	      else if (1)
		{
		  /* Leave it alone.  */
		}
#endif
#ifdef BFD_ASSEMBLER
	      else if (fixP->fx_r_type == BFD_RELOC_GPREL32
		       || fixP->fx_r_type == BFD_RELOC_GPREL16)
		{
		  /* Leave it alone.  */
		}
#endif
	      else
		{
		  char buf[50];
		  sprint_value (buf, fragP->fr_address + where);
		  as_bad_where (fixP->fx_file, fixP->fx_line,
				_("Subtraction of two symbols in different sections \"%s\" {%s section} - \"%s\" {%s section} at file address %s."),
				S_GET_NAME (add_symbolP),
				segment_name (S_GET_SEGMENT (add_symbolP)),
				S_GET_NAME (sub_symbolP),
				segment_name (S_GET_SEGMENT (sub_symbolP)),
				buf);
		}
	    }
	}

      if (add_symbolP)
	{
	  if (add_symbol_segment == this_segment_type && pcrel && !plt
	      && TC_RELOC_RTSYM_LOC_FIXUP (fixP))
	    {
	      /* This fixup was made when the symbol's segment was
		 SEG_UNKNOWN, but it is now in the local segment.
		 So we know how to do the address without relocation.  */
#ifdef TC_I960
	      /* reloc_callj() may replace a 'call' with a 'calls' or a
		 'bal', in which cases it modifies *fixP as appropriate.
		 In the case of a 'calls', no further work is required,
		 and *fixP has been set up to make the rest of the code
		 below a no-op.  */
	      reloc_callj (fixP);
#endif /* TC_I960  */

	      add_number += S_GET_VALUE (add_symbolP);
	      add_number -= MD_PCREL_FROM_SECTION (fixP, this_segment_type);
	      /* Lie.  Don't want further pcrel processing.  */
	      pcrel = 0;

	      /* Let the target machine make the final determination
		 as to whether or not a relocation will be needed to
		 handle this fixup.  */
	      if (!TC_FORCE_RELOCATION (fixP))
		{
		  fixP->fx_pcrel = 0;
		  fixP->fx_addsy = NULL;
		}
	    }
	  else
	    {
	      if (add_symbol_segment == absolute_section
		  && ! pcrel)
		{
#ifdef TC_I960
		  /* See comment about reloc_callj() above.  */
		  reloc_callj (fixP);
#endif /* TC_I960  */
		  add_number += S_GET_VALUE (add_symbolP);

		  /* Let the target machine make the final determination
		     as to whether or not a relocation will be needed to
		     handle this fixup.  */

		  if (!TC_FORCE_RELOCATION (fixP))
		    {
		      fixP->fx_addsy = NULL;
		      add_symbolP = NULL;
		    }
		}
	      else if (add_symbol_segment == undefined_section
#ifdef BFD_ASSEMBLER
		       || bfd_is_com_section (add_symbol_segment)
#endif
		       )
		{
#ifdef TC_I960
		  if ((int) fixP->fx_bit_fixP == 13)
		    {
		      /* This is a COBR instruction.  They have only a
			 13-bit displacement and are only to be used
			 for local branches: flag as error, don't generate
			 relocation.  */
		      as_bad_where (fixP->fx_file, fixP->fx_line,
				    _("can't use COBR format with external label"));
		      fixP->fx_addsy = NULL;
		      fixP->fx_done = 1;
		      continue;
		    }		/* COBR.  */
#endif /* TC_I960  */

#ifdef OBJ_COFF
#ifdef TE_I386AIX
		  if (S_IS_COMMON (add_symbolP))
		    add_number += S_GET_VALUE (add_symbolP);
#endif /* TE_I386AIX  */
#endif /* OBJ_COFF  */
		  ++seg_reloc_count;
		}
	      else
		{
		  seg_reloc_count++;
		  if (TC_FIX_ADJUSTABLE (fixP))
		    add_number += S_GET_VALUE (add_symbolP);
		}
	    }
	}

      if (pcrel)
	{
	  add_number -= MD_PCREL_FROM_SECTION (fixP, this_segment_type);
	  if (add_symbolP == 0)
	    {
#ifndef BFD_ASSEMBLER
	      fixP->fx_addsy = &abs_symbol;
#else
	      fixP->fx_addsy = section_symbol (absolute_section);
#endif
	      symbol_mark_used_in_reloc (fixP->fx_addsy);
	      ++seg_reloc_count;
	    }
	}

      if (!fixP->fx_done)
	{
#ifdef MD_APPLY_FIX3
	  md_apply_fix3 (fixP, &add_number, this_segment_type);
#else
#ifdef BFD_ASSEMBLER
	  md_apply_fix (fixP, &add_number);
#else
	  md_apply_fix (fixP, add_number);
#endif
#endif

#ifndef TC_HANDLES_FX_DONE
	  /* If the tc-* files haven't been converted, assume it's handling
	     it the old way, where a null fx_addsy means that the fix has
	     been applied completely, and no further work is needed.  */
	  if (fixP->fx_addsy == 0 && fixP->fx_pcrel == 0)
	    fixP->fx_done = 1;
#endif
	}

      if (!fixP->fx_bit_fixP && !fixP->fx_no_overflow && size > 0)
	{
	  if ((size_t) size < sizeof (valueT))
	    {
	      valueT mask;

	      mask = 0;
	      mask--;		/* Set all bits to one.  */
	      mask <<= size * 8 - (fixP->fx_signed ? 1 : 0);
	      if ((add_number & mask) != 0 && (add_number & mask) != mask)
		{
		  char buf[50], buf2[50];
		  sprint_value (buf, fragP->fr_address + where);
		  if (add_number > 1000)
		    sprint_value (buf2, add_number);
		  else
		    sprintf (buf2, "%ld", (long) add_number);
		  as_bad_where (fixP->fx_file, fixP->fx_line,
				_("Value of %s too large for field of %d bytes at %s"),
				buf2, size, buf);
		} /* Generic error checking.  */
	    }
#ifdef WARN_SIGNED_OVERFLOW_WORD
	  /* Warn if a .word value is too large when treated as a signed
	     number.  We already know it is not too negative.  This is to
	     catch over-large switches generated by gcc on the 68k.  */
	  if (!flag_signed_overflow_ok
	      && size == 2
	      && add_number > 0x7fff)
	    as_bad_where (fixP->fx_file, fixP->fx_line,
			  _("Signed .word overflow; switch may be too large; %ld at 0x%lx"),
			  (long) add_number,
			  (unsigned long) (fragP->fr_address + where));
#endif
	}			/* Not a bit fix.  */

#ifdef TC_VALIDATE_FIX
    skip:  ATTRIBUTE_UNUSED_LABEL
      ;
#endif
#ifdef DEBUG5
      fprintf (stderr, "result:\n");
      print_fixup (fixP);
#endif
    }				/* For each fixS in this segment.  */

  TC_ADJUST_RELOC_COUNT (fixP, seg_reloc_count);
  return seg_reloc_count;
}

#endif /* defined (BFD_ASSEMBLER) || (!defined (BFD) && !defined (OBJ_VMS)) */

void
number_to_chars_bigendian (buf, val, n)
     char *buf;
     valueT val;
     int n;
{
  if ((size_t) n > sizeof (val) || n <= 0)
    abort ();
  while (n--)
    {
      buf[n] = val & 0xff;
      val >>= 8;
    }
}

void
number_to_chars_littleendian (buf, val, n)
     char *buf;
     valueT val;
     int n;
{
  if ((size_t) n > sizeof (val) || n <= 0)
    abort ();
  while (n--)
    {
      *buf++ = val & 0xff;
      val >>= 8;
    }
}

void
write_print_statistics (file)
     FILE *file;
{
  fprintf (file, "fixups: %d\n", n_fixups);
}

/* For debugging.  */
extern int indent_level;

void
print_fixup (fixp)
     fixS *fixp;
{
  indent_level = 1;
  fprintf (stderr, "fix %lx %s:%d", (long) fixp, fixp->fx_file, fixp->fx_line);
  if (fixp->fx_pcrel)
    fprintf (stderr, " pcrel");
  if (fixp->fx_pcrel_adjust)
    fprintf (stderr, " pcrel_adjust=%d", fixp->fx_pcrel_adjust);
  if (fixp->fx_im_disp)
    {
#ifdef TC_NS32K
      fprintf (stderr, " im_disp=%d", fixp->fx_im_disp);
#else
      fprintf (stderr, " im_disp");
#endif
    }
  if (fixp->fx_tcbit)
    fprintf (stderr, " tcbit");
  if (fixp->fx_done)
    fprintf (stderr, " done");
  fprintf (stderr, "\n    size=%d frag=%lx where=%ld offset=%lx addnumber=%lx",
	   fixp->fx_size, (long) fixp->fx_frag, (long) fixp->fx_where,
	   (long) fixp->fx_offset, (long) fixp->fx_addnumber);
#ifdef BFD_ASSEMBLER
  fprintf (stderr, "\n    %s (%d)", bfd_get_reloc_code_name (fixp->fx_r_type),
	   fixp->fx_r_type);
#else
#ifdef NEED_FX_R_TYPE
  fprintf (stderr, " r_type=%d", fixp->fx_r_type);
#endif
#endif
  if (fixp->fx_addsy)
    {
      fprintf (stderr, "\n   +<");
      print_symbol_value_1 (stderr, fixp->fx_addsy);
      fprintf (stderr, ">");
    }
  if (fixp->fx_subsy)
    {
      fprintf (stderr, "\n   -<");
      print_symbol_value_1 (stderr, fixp->fx_subsy);
      fprintf (stderr, ">");
    }
  fprintf (stderr, "\n");
#ifdef TC_FIX_DATA_PRINT
  TC_FIX_DATA_PRINT (stderr, fixp);
#endif
}