unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
blob 0e3bf03ca9393de9337565cc2d0f40a4e96feb6b 93114 bytes (raw)
name: src/emacs.c 	 # note: path name is non-authoritative(*)

   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
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
 
/* Fully extensible Emacs, running on Unix, intended for GNU.

Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2020 Free Software
Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs 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 3 of the License, or (at
your option) any later version.

GNU Emacs 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 GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */

#define INLINE EXTERN_INLINE
#include <config.h>

#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>

#include <sys/file.h>
#include <sys/stat.h>
#include <unistd.h>

#define MAIN_PROGRAM
#include "lisp.h"
#include "sysstdio.h"

#ifdef WINDOWSNT
#include <fcntl.h>
#include <sys/socket.h>
#include <mbstring.h>
#include "w32.h"
#include "w32heap.h"
#endif

#if defined WINDOWSNT || defined HAVE_NTGUI
#include "w32select.h"
#include "w32font.h"
#include "w32common.h"
#endif

#if defined CYGWIN
#include "cygw32.h"
#endif

#ifdef MSDOS
#include <binary-io.h>
#include "dosfns.h"
#endif

#ifdef HAVE_LIBSYSTEMD
# include <systemd/sd-daemon.h>
# include <sys/socket.h>
#endif

#ifdef HAVE_WINDOW_SYSTEM
#include TERM_HEADER
#endif /* HAVE_WINDOW_SYSTEM */

#include "bignum.h"
#include "intervals.h"
#include "character.h"
#include "buffer.h"
#include "window.h"
#include "xwidget.h"
#include "atimer.h"
#include "blockinput.h"
#include "syssignal.h"
#include "process.h"
#include "frame.h"
#include "termhooks.h"
#include "keyboard.h"
#include "keymap.h"
#include "category.h"
#include "charset.h"
#include "composite.h"
#include "dispextern.h"
#include "ptr-bounds.h"
#include "regex-emacs.h"
#include "sheap.h"
#include "syntax.h"
#include "sysselect.h"
#include "systime.h"
#include "puresize.h"

#include "getpagesize.h"
#include "gnutls.h"

#ifdef PROFILING
# include <sys/gmon.h>
extern void moncontrol (int mode);
# ifdef __MINGW32__
extern unsigned char etext asm ("etext");
# else
extern char etext;
# endif
#endif

#ifdef HAVE_SETLOCALE
#include <locale.h>
#endif

#if HAVE_WCHAR_H
# include <wchar.h>
#endif

#ifdef HAVE_SETRLIMIT
#include <sys/time.h>
#include <sys/resource.h>
#endif

#include "pdumper.h"
#include "epaths.h"

#ifdef USE_GTK
#include "gtkinter.h"
#endif

#ifdef HAVE_GTK4
#include "pgtkembed.h"
#endif

static const char emacs_version[] = PACKAGE_VERSION;
static const char emacs_copyright[] = COPYRIGHT;
static const char emacs_bugreport[] = PACKAGE_BUGREPORT;

/* Empty lisp strings.  To avoid having to build any others.  */
Lisp_Object empty_unibyte_string, empty_multibyte_string;

#ifdef WINDOWSNT
/* Cache for externally loaded libraries.  */
Lisp_Object Vlibrary_cache;
#endif

struct gflags gflags;
bool initialized;

/* If true, Emacs should not attempt to use a window-specific code,
   but instead should use the virtual terminal under which it was started.  */
bool inhibit_window_system;

/* If true, a filter or a sentinel is running.  Tested to save the match
   data on the first attempt to change it inside asynchronous code.  */
bool running_asynch_code;

#if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
/* If true, -d was specified, meaning we're using some window system.  */
bool display_arg;
#endif

#if defined GNU_LINUX && defined HAVE_UNEXEC
/* The gap between BSS end and heap start as far as we can tell.  */
static uintmax_t heap_bss_diff;
#endif

/* To run as a background daemon under Cocoa or Windows,
   we must do a fork+exec, not a simple fork.

   On Cocoa, CoreFoundation lib fails in forked process, see Mac OS X
   Leopard Developer Release Notes for CoreFoundation Framework:

   https://web.archive.org/web/20090225231934/http://developer.apple.com/ReleaseNotes/CoreFoundation/CoreFoundation.html

   On Windows, a Cygwin fork child cannot access the USER subsystem.

   We mark being in the exec'd process by a daemon name argument of
   form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
   NAME is the original daemon name, if any. */
#if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
# define DAEMON_MUST_EXEC
#endif

/* True means running Emacs without interactive terminal.  */
bool noninteractive;

/* True means remove site-lisp directories from load-path.  */
bool no_site_lisp;

/* True means put details like time stamps into builds.  */
bool build_details;

/* Name for the server started by the daemon.*/
static char *daemon_name;

/* 0 not a daemon, 1 new-style (foreground), 2 old-style (background).  */
int daemon_type;

#ifndef WINDOWSNT
/* Pipe used to send exit notification to the background daemon parent at
   startup.  On Windows, we use a kernel event instead.  */
static int daemon_pipe[2];
#else
HANDLE w32_daemon_event;
#endif

/* Save argv and argc.  */
char **initial_argv;
int initial_argc;

/* The name of the working directory, or NULL if this info is unavailable.  */
char const *emacs_wd;

static void sort_args (int argc, char **argv);
static void syms_of_emacs (void);

/* C99 needs each string to be at most 4095 characters, and the usage
   strings below are split to not overflow this limit.  */
static char const *const usage_message[] =
  { "\
\n\
Run Emacs, the extensible, customizable, self-documenting real-time\n\
display editor.  The recommended way to start Emacs for normal editing\n\
is with no options at all.\n\
\n\
Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
read the main documentation for these command-line arguments.\n\
\n\
Initialization options:\n\
\n\
",
    "\
--batch                     do not do interactive display; implies -q\n\
--chdir DIR                 change to directory DIR\n\
--daemon, --bg-daemon[=NAME] start a (named) server in the background\n\
--fg-daemon[=NAME]          start a (named) server in the foreground\n\
--debug-init                enable Emacs Lisp debugger for init file\n\
--display, -d DISPLAY       use X server DISPLAY\n\
",
#ifdef HAVE_MODULES
    "\
--module-assertions         assert behavior of dynamic modules\n\
",
#endif
#ifdef HAVE_PDUMPER
    "\
--dump-file FILE            read dumped state from FILE\n\
",
#endif
    "\
--no-build-details          do not add build details such as time stamps\n\
--no-desktop                do not load a saved desktop\n\
--no-init-file, -q          load neither ~/.emacs nor default.el\n\
--no-loadup, -nl            do not load loadup.el into bare Emacs\n\
--no-site-file              do not load site-start.el\n\
--no-x-resources            do not load X resources\n\
--no-site-lisp, -nsl        do not add site-lisp directories to load-path\n\
--no-splash                 do not display a splash screen on startup\n\
--no-window-system, -nw     do not communicate with X, ignoring $DISPLAY\n\
",
    "\
--quick, -Q                 equivalent to:\n\
                              -q --no-site-file --no-site-lisp --no-splash\n\
                              --no-x-resources\n\
--script FILE               run FILE as an Emacs Lisp script\n\
--terminal, -t DEVICE       use DEVICE for terminal I/O\n\
--user, -u USER             load ~USER/.emacs instead of your own\n\
\n\
",
    "\
Action options:\n\
\n\
FILE                    visit FILE\n\
+LINE                   go to line LINE in next FILE\n\
+LINE:COLUMN            go to line LINE, column COLUMN, in next FILE\n\
--directory, -L DIR     prepend DIR to load-path (with :DIR, append DIR)\n\
--eval EXPR             evaluate Emacs Lisp expression EXPR\n\
--execute EXPR          evaluate Emacs Lisp expression EXPR\n\
",
    "\
--file FILE             visit FILE\n\
--find-file FILE        visit FILE\n\
--funcall, -f FUNC      call Emacs Lisp function FUNC with no arguments\n\
--insert FILE           insert contents of FILE into current buffer\n\
--kill                  exit without asking for confirmation\n\
--load, -l FILE         load Emacs Lisp FILE using the load function\n\
--visit FILE            visit FILE\n\
\n\
",
    "\
Display options:\n\
\n\
--background-color, -bg COLOR   window background color\n\
--basic-display, -D             disable many display features;\n\
                                  used for debugging Emacs\n\
--border-color, -bd COLOR       main border color\n\
--border-width, -bw WIDTH       width of main border\n\
",
    "\
--color, --color=MODE           override color mode for character terminals;\n\
                                  MODE defaults to `auto', and\n\
                                  can also be `never', `always',\n\
                                  or a mode name like `ansi8'\n\
--cursor-color, -cr COLOR       color of the Emacs cursor indicating point\n\
--font, -fn FONT                default font; must be fixed-width\n\
--foreground-color, -fg COLOR   window foreground color\n\
",
    "\
--fullheight, -fh               make the first frame high as the screen\n\
--fullscreen, -fs               make the first frame fullscreen\n\
--fullwidth, -fw                make the first frame wide as the screen\n\
--maximized, -mm                make the first frame maximized\n\
--geometry, -g GEOMETRY         window geometry\n\
",
    "\
--no-bitmap-icon, -nbi          do not use picture of gnu for Emacs icon\n\
--iconic                        start Emacs in iconified state\n\
--internal-border, -ib WIDTH    width between text and main border\n\
--line-spacing, -lsp PIXELS     additional space to put between lines\n\
--mouse-color, -ms COLOR        mouse cursor color in Emacs window\n\
--name NAME                     title for initial Emacs frame\n\
",
    "\
--no-blinking-cursor, -nbc      disable blinking cursor\n\
--reverse-video, -r, -rv        switch foreground and background\n\
--title, -T TITLE               title for initial Emacs frame\n\
--vertical-scroll-bars, -vb     enable vertical scroll bars\n\
--xrm XRESOURCES                set additional X resources\n\
--parent-id XID                 set parent window\n\
--help                          display this help and exit\n\
--version                       output version information and exit\n\
\n\
",
    "\
You can generally also specify long option names with a single -; for\n\
example, -batch as well as --batch.  You can use any unambiguous\n\
abbreviation for a --option.\n\
\n\
Various environment variables and window system resources also affect\n\
the operation of Emacs.  See the main documentation.\n\
\n\
Report bugs to " PACKAGE_BUGREPORT ".  First, please see the Bugs\n\
section of the Emacs manual or the file BUGS.\n"
  };

\f
/* True if handling a fatal error already.  */
bool fatal_error_in_progress;

#ifdef HAVE_NS
/* NS autorelease pool, for memory management.  */
static void *ns_pool;
#endif

#if !HAVE_SETLOCALE
static char *
setlocale (int cat, char const *locale)
{
  return 0;
}
#endif

/* True if the current system locale uses UTF-8 encoding.  */
static bool
using_utf8 (void)
{
#ifdef HAVE_WCHAR_H
  wchar_t wc;
  mbstate_t mbs = { 0 };
  return mbrtowc (&wc, "\xc4\x80", 2, &mbs) == 2 && wc == 0x100;
#else
  return false;
#endif
}


/* Report a fatal error due to signal SIG, output a backtrace of at
   most BACKTRACE_LIMIT lines, and exit.  */
AVOID
terminate_due_to_signal (int sig, int backtrace_limit)
{
  signal (sig, SIG_DFL);

  if (attempt_orderly_shutdown_on_fatal_signal)
    {
      /* If fatal error occurs in code below, avoid infinite recursion.  */
      if (! fatal_error_in_progress)
        {
          fatal_error_in_progress = 1;

          totally_unblock_input ();
          if (sig == SIGTERM || sig == SIGHUP || sig == SIGINT)
            Fkill_emacs (make_fixnum (sig));

          shut_down_emacs (sig, Qnil);
          emacs_backtrace (backtrace_limit);
        }
    }

  /* Signal the same code; this time it will really be fatal.
     Since we're in a signal handler, the signal is blocked, so we
     have to unblock it if we want to really receive it.  */
#ifndef MSDOS
  {
    sigset_t unblocked;
    sigemptyset (&unblocked);
    sigaddset (&unblocked, sig);
    pthread_sigmask (SIG_UNBLOCK, &unblocked, 0);
  }
#endif

  emacs_raise (sig);

  /* This shouldn't be executed, but it prevents a warning.  */
  exit (1);
}
\f
/* Code for dealing with Lisp access to the Unix command line.  */

static void
init_cmdargs (int argc, char **argv, int skip_args, char const *original_pwd)
{
  int i;
  Lisp_Object name, dir, handler;
  ptrdiff_t count = SPECPDL_INDEX ();
  Lisp_Object raw_name;
  AUTO_STRING (slash_colon, "/:");

  initial_argv = argv;
  initial_argc = argc;

#ifdef WINDOWSNT
  /* Must use argv[0] converted to UTF-8, as it begets many standard
     file and directory names.  */
  {
    char argv0[MAX_UTF8_PATH];

    if (filename_from_ansi (argv[0], argv0) == 0)
      raw_name = build_unibyte_string (argv0);
    else
      raw_name = build_unibyte_string (argv[0]);
  }
#else
  raw_name = build_unibyte_string (argv[0]);
#endif

  /* Add /: to the front of the name
     if it would otherwise be treated as magic.  */
  handler = Ffind_file_name_handler (raw_name, Qt);
  if (! NILP (handler))
    raw_name = concat2 (slash_colon, raw_name);

  Vinvocation_name = Ffile_name_nondirectory (raw_name);
  Vinvocation_directory = Ffile_name_directory (raw_name);

  /* If we got no directory in argv[0], search PATH to find where
     Emacs actually came from.  */
  if (NILP (Vinvocation_directory))
    {
      Lisp_Object found;
      int yes = openp (Vexec_path, Vinvocation_name,
		       Vexec_suffixes, &found, make_fixnum (X_OK), false);
      if (yes == 1)
	{
	  /* Add /: to the front of the name
	     if it would otherwise be treated as magic.  */
	  handler = Ffind_file_name_handler (found, Qt);
	  if (! NILP (handler))
	    found = concat2 (slash_colon, found);
	  Vinvocation_directory = Ffile_name_directory (found);
	}
    }

  if (!NILP (Vinvocation_directory)
      && NILP (Ffile_name_absolute_p (Vinvocation_directory)))
    /* Emacs was started with relative path, like ./emacs.
       Make it absolute.  */
    {
      Lisp_Object odir =
	original_pwd ? build_unibyte_string (original_pwd) : Qnil;

      Vinvocation_directory = Fexpand_file_name (Vinvocation_directory, odir);
    }

  Vinstallation_directory = Qnil;

  if (!NILP (Vinvocation_directory))
    {
      dir = Vinvocation_directory;
#ifdef WINDOWSNT
      /* If we are running from the build directory, set DIR to the
	 src subdirectory of the Emacs tree, like on Posix
	 platforms.  */
      if (SBYTES (dir) > sizeof ("/i386/") - 1
	  && 0 == strcmp (SSDATA (dir) + SBYTES (dir) - sizeof ("/i386/") + 1,
			  "/i386/"))
	{
	  if (NILP (Vpurify_flag))
	    {
	      Lisp_Object file_truename = intern ("file-truename");
	      if (!NILP (Ffboundp (file_truename)))
		dir = call1 (file_truename, dir);
	    }
	  dir = Fexpand_file_name (build_string ("../.."), dir);
	}
#endif
      name = Fexpand_file_name (Vinvocation_name, dir);
      while (1)
	{
	  Lisp_Object tem, lib_src_exists;
	  Lisp_Object etc_exists, info_exists;

	  /* See if dir contains subdirs for use by Emacs.
	     Check for the ones that would exist in a build directory,
	     not including lisp and info.  */
	  tem = Fexpand_file_name (build_string ("lib-src"), dir);
	  lib_src_exists = Ffile_exists_p (tem);

#ifdef MSDOS
	  /* MSDOS installations frequently remove lib-src, but we still
	     must set installation-directory, or else info won't find
	     its files (it uses the value of installation-directory).  */
	  tem = Fexpand_file_name (build_string ("info"), dir);
	  info_exists = Ffile_exists_p (tem);
#else
	  info_exists = Qnil;
#endif

	  if (!NILP (lib_src_exists) || !NILP (info_exists))
	    {
	      tem = Fexpand_file_name (build_string ("etc"), dir);
	      etc_exists = Ffile_exists_p (tem);
	      if (!NILP (etc_exists))
		{
                  Vinstallation_directory = Ffile_name_as_directory (dir);
		  break;
		}
	    }

	  /* See if dir's parent contains those subdirs.  */
	  tem = Fexpand_file_name (build_string ("../lib-src"), dir);
	  lib_src_exists = Ffile_exists_p (tem);


#ifdef MSDOS
	  /* See the MSDOS commentary above.  */
	  tem = Fexpand_file_name (build_string ("../info"), dir);
	  info_exists = Ffile_exists_p (tem);
#else
	  info_exists = Qnil;
#endif

	  if (!NILP (lib_src_exists) || !NILP (info_exists))
	    {
	      tem = Fexpand_file_name (build_string ("../etc"), dir);
	      etc_exists = Ffile_exists_p (tem);
	      if (!NILP (etc_exists))
		{
		  tem = Fexpand_file_name (build_string (".."), dir);
                  Vinstallation_directory = Ffile_name_as_directory (tem);
		  break;
		}
	    }

	  /* If the Emacs executable is actually a link,
	     next try the dir that the link points into.  */
	  tem = Ffile_symlink_p (name);
	  if (!NILP (tem))
	    {
	      name = Fexpand_file_name (tem, dir);
	      dir = Ffile_name_directory (name);
	    }
	  else
	    break;
	}
    }

  Vcommand_line_args = Qnil;

  for (i = argc - 1; i >= 0; i--)
    {
      if (i == 0 || i > skip_args)
	/* For the moment, we keep arguments as is in unibyte strings.
	   They are decoded in the function command-line after we know
	   locale-coding-system.  */
	Vcommand_line_args
	  = Fcons (build_unibyte_string (argv[i]), Vcommand_line_args);
    }

  unbind_to (count, Qnil);
}

DEFUN ("invocation-name", Finvocation_name, Sinvocation_name, 0, 0, 0,
       doc: /* Return the program name that was used to run Emacs.
Any directory names are omitted.  */)
  (void)
{
  return Fcopy_sequence (Vinvocation_name);
}

DEFUN ("invocation-directory", Finvocation_directory, Sinvocation_directory,
       0, 0, 0,
       doc: /* Return the directory name in which the Emacs executable was located.  */)
  (void)
{
  return Fcopy_sequence (Vinvocation_directory);
}

\f
/* Test whether the next argument in ARGV matches SSTR or a prefix of
   LSTR (at least MINLEN characters).  If so, then if VALPTR is non-null
   (the argument is supposed to have a value) store in *VALPTR either
   the next argument or the portion of this one after the equal sign.
   ARGV is read starting at position *SKIPPTR; this index is advanced
   by the number of arguments used.

   Too bad we can't just use getopt for all of this, but we don't have
   enough information to do it right.  */

static bool
argmatch (char **argv, int argc, const char *sstr, const char *lstr,
          int minlen, char **valptr, int *skipptr)
{
  char *p = NULL;
  ptrdiff_t arglen;
  char *arg;

  /* Don't access argv[argc]; give up in advance.  */
  if (argc <= *skipptr + 1)
    return 0;

  arg = argv[*skipptr+1];
  if (arg == NULL)
    return 0;
  if (strcmp (arg, sstr) == 0)
    {
      if (valptr != NULL)
	{
	  *valptr = argv[*skipptr+2];
	  *skipptr += 2;
	}
      else
	*skipptr += 1;
      return 1;
    }
  arglen = (valptr != NULL && (p = strchr (arg, '=')) != NULL
	    ? p - arg : strlen (arg));
  if (lstr == 0 || arglen < minlen || strncmp (arg, lstr, arglen) != 0)
    return 0;
  else if (valptr == NULL)
    {
      *skipptr += 1;
      return 1;
    }
  else if (p != NULL)
    {
      *valptr = p+1;
      *skipptr += 1;
      return 1;
    }
  else if (argv[*skipptr+2] != NULL)
    {
      *valptr = argv[*skipptr+2];
      *skipptr += 2;
      return 1;
    }
  else
    {
      return 0;
    }
}

#ifdef HAVE_PDUMPER

static const char *
dump_error_to_string (int result)
{
  switch (result)
    {
    case PDUMPER_LOAD_SUCCESS:
      return "success";
    case PDUMPER_LOAD_OOM:
      return "out of memory";
    case PDUMPER_NOT_LOADED:
      return "not loaded";
    case PDUMPER_LOAD_FILE_NOT_FOUND:
      return "could not open file";
    case PDUMPER_LOAD_BAD_FILE_TYPE:
      return "not a dump file";
    case PDUMPER_LOAD_FAILED_DUMP:
      return "dump file is result of failed dump attempt";
    case PDUMPER_LOAD_VERSION_MISMATCH:
      return "not built for this Emacs executable";
    default:
      return (result <= PDUMPER_LOAD_ERROR
	      ? "generic error"
	      : strerror (result - PDUMPER_LOAD_ERROR));
    }
}

/* Find a name (absolute or relative) of the Emacs executable whose
   name (as passed into this program) is ARGV0.  Called early in
   initialization by portable dumper loading code, so avoid Lisp and
   associated machinery.  Return a heap-allocated string giving a name
   of the Emacs executable, or an empty heap-allocated string or NULL
   if not found.  Store into *CANDIDATE_SIZE a lower bound on the size
   of any heap allocation.  */
static char *
load_pdump_find_executable (char const *argv0, ptrdiff_t *candidate_size)
{
  *candidate_size = 0;

  /* Use xstrdup etc. to allocate storage, so as to call our private
     implementation of malloc, since the caller calls our free.  */
#ifdef WINDOWSNT
  char *prog_fname = w32_my_exename ();
  return prog_fname ? xstrdup (prog_fname) : NULL;
#else  /* !WINDOWSNT */
  char *candidate = NULL;

  /* If the executable name contains a slash, we have some kind of
     path already, so just copy it.  */
  eassert (argv0);
  if (strchr (argv0, DIRECTORY_SEP))
    return xstrdup (argv0);
  ptrdiff_t argv0_length = strlen (argv0);

  const char *path = getenv ("PATH");
  if (!path)
    {
      /* Default PATH is implementation-defined, so we don't know how
         to conduct the search.  */
      return NULL;
    }

  /* Actually try each concatenation of a path element and the
     executable basename.  */
  do
    {
      static char const path_sep[] = { SEPCHAR, '\0' };
      ptrdiff_t path_part_length = strcspn (path, path_sep);
      const char *path_part = path;
      path += path_part_length;
      if (path_part_length == 0)
        {
          path_part = ".";
          path_part_length = 1;
        }
      ptrdiff_t needed = path_part_length + 1 + argv0_length + 1;
      if (*candidate_size <= needed)
	{
	  xfree (candidate);
	  candidate = xpalloc (NULL, candidate_size,
			       needed - *candidate_size + 1, -1, 1);
	}
      memcpy (candidate + 0, path_part, path_part_length);
      candidate[path_part_length] = DIRECTORY_SEP;
      memcpy (candidate + path_part_length + 1, argv0, argv0_length + 1);
      struct stat st;
      if (file_access_p (candidate, X_OK)
	  && stat (candidate, &st) == 0 && S_ISREG (st.st_mode))
	return candidate;
      *candidate = '\0';
    }
  while (*path++ != '\0');

  return candidate;
#endif	/* !WINDOWSNT */
}

static void
load_pdump (int argc, char **argv)
{
  const char *const suffix = ".pdmp";
  int result;
  const char *strip_suffix =
#if defined DOS_NT || defined CYGWIN
    ".exe"
#else
    NULL
#endif
    ;

  /* TODO: maybe more thoroughly scrub process environment in order to
     make this use case (loading a dump file in an unexeced emacs)
     possible?  Right now, we assume that things we don't touch are
     zero-initialized, and in an unexeced Emacs, this assumption
     doesn't hold.  */
  if (initialized)
    fatal ("cannot load dump file in unexeced Emacs");

  /* Look for an explicitly-specified dump file.  */
  const char *path_exec = PATH_EXEC;
  char *dump_file = NULL;
  int skip_args = 0;
  while (skip_args < argc - 1)
    {
      if (argmatch (argv, argc, "-dump-file", "--dump-file", 6,
		    &dump_file, &skip_args)
	  || argmatch (argv, argc, "--", NULL, 2, NULL, &skip_args))
	break;
      skip_args++;
    }

  if (dump_file)
    {
      result = pdumper_load (dump_file);

      if (result != PDUMPER_LOAD_SUCCESS)
        fatal ("could not load dump file \"%s\": %s",
               dump_file, dump_error_to_string (result));
      return;
    }

  /* Look for a dump file in the same directory as the executable; it
     should have the same basename.  Take care to search PATH to find
     the executable if needed.  We're too early in init to use Lisp,
     so we can't use decode_env_path.  We're working in whatever
     encoding the system natively uses for filesystem access, so
     there's no need for character set conversion.  */
  ptrdiff_t bufsize;
  dump_file = load_pdump_find_executable (argv[0], &bufsize);

  /* If we couldn't find our executable, go straight to looking for
     the dump in the hardcoded location.  */
  if (dump_file && *dump_file)
    {
#ifdef WINDOWSNT
      /* w32_my_exename resolves symlinks internally, so no need to
	 call realpath.  */
#else
      char *real_exename = realpath (dump_file, NULL);
      if (!real_exename)
        fatal ("could not resolve realpath of \"%s\": %s",
               dump_file, strerror (errno));
      xfree (dump_file);
      dump_file = real_exename;
#endif
      ptrdiff_t exenamelen = strlen (dump_file);
#ifndef WINDOWSNT
      bufsize = exenamelen + 1;
#endif
      if (strip_suffix)
        {
	  ptrdiff_t strip_suffix_length = strlen (strip_suffix);
	  ptrdiff_t prefix_length = exenamelen - strip_suffix_length;
	  if (0 <= prefix_length
	      && !memcmp (&dump_file[prefix_length], strip_suffix,
			  strip_suffix_length))
	    exenamelen = prefix_length;
        }
      ptrdiff_t needed = exenamelen + strlen (suffix) + 1;
      if (bufsize < needed)
	dump_file = xpalloc (dump_file, &bufsize, needed - bufsize, -1, 1);
      strcpy (dump_file + exenamelen, suffix);
      result = pdumper_load (dump_file);
      if (result == PDUMPER_LOAD_SUCCESS)
        goto out;

      if (result != PDUMPER_LOAD_FILE_NOT_FOUND)
        fatal ("could not load dump file \"%s\": %s",
               dump_file, dump_error_to_string (result));
    }

#ifdef WINDOWSNT
  /* On MS-Windows, PATH_EXEC normally starts with a literal
     "%emacs_dir%", so it will never work without some tweaking.  */
  path_exec = w32_relocate (path_exec);
#endif

  /* Look for "emacs.pdmp" in PATH_EXEC.  We hardcode "emacs" in
     "emacs.pdmp" so that the Emacs binary still works if the user
     copies and renames it.  */
  const char *argv0_base = "emacs";
  ptrdiff_t needed = (strlen (path_exec)
                      + 1
                      + strlen (argv0_base)
                      + strlen (suffix)
                      + 1);
  if (bufsize < needed)
    {
      xfree (dump_file);
      dump_file = xpalloc (NULL, &bufsize, needed - bufsize, -1, 1);
    }
  sprintf (dump_file, "%s%c%s%s",
           path_exec, DIRECTORY_SEP, argv0_base, suffix);
  result = pdumper_load (dump_file);

  if (result == PDUMPER_LOAD_FILE_NOT_FOUND)
    {
      /* Finally, look for basename(argv0)+".pdmp" in PATH_EXEC.
	 This way, they can rename both the executable and its pdump
	 file in PATH_EXEC, and have several Emacs configurations in
	 the same versioned libexec subdirectory.  */
      char *p, *last_sep = NULL;
      for (p = argv[0]; *p; p++)
	{
	  if (IS_DIRECTORY_SEP (*p))
	    last_sep = p;
	}
      argv0_base = last_sep ? last_sep + 1 : argv[0];
      ptrdiff_t needed = (strlen (path_exec)
			  + 1
			  + strlen (argv0_base)
			  + strlen (suffix)
			  + 1);
      if (bufsize < needed)
	{
	  xfree (dump_file);
	  dump_file = xmalloc (needed);
	}
#ifdef DOS_NT
      ptrdiff_t argv0_len = strlen (argv0_base);
      if (argv0_len >= 4
	  && c_strcasecmp (argv0_base + argv0_len - 4, ".exe") == 0)
	sprintf (dump_file, "%s%c%.*s%s", path_exec, DIRECTORY_SEP,
		 (int)(argv0_len - 4), argv0_base, suffix);
      else
#endif
      sprintf (dump_file, "%s%c%s%s",
	       path_exec, DIRECTORY_SEP, argv0_base, suffix);
      result = pdumper_load (dump_file);
    }

  if (result != PDUMPER_LOAD_SUCCESS)
    {
      if (result != PDUMPER_LOAD_FILE_NOT_FOUND)
	fatal ("could not load dump file \"%s\": %s",
	       dump_file, dump_error_to_string (result));
    }

 out:
  xfree (dump_file);
}
#endif /* HAVE_PDUMPER */

int
main (int argc, char **argv)
{
  /* Variable near the bottom of the stack, and aligned appropriately
     for pointers.  */
  void *stack_bottom_variable;

  bool no_loadup = false;
  char *junk = 0;
  char *dname_arg = 0;
#ifdef DAEMON_MUST_EXEC
  char dname_arg2[80];
#endif
  char *ch_to_dir = 0;

  /* If we use --chdir, this records the original directory.  */
  char const *original_pwd = 0;

  /* Record (approximately) where the stack begins.  */
  stack_bottom = (char *) &stack_bottom_variable;

  const char *dump_mode = NULL;
  int skip_args = 0;
  char *temacs = NULL;
  while (skip_args < argc - 1)
    {
      if (argmatch (argv, argc, "-temacs", "--temacs", 8, &temacs, &skip_args)
	  || argmatch (argv, argc, "--", NULL, 2, NULL, &skip_args))
	break;
      skip_args++;
    }
#ifdef HAVE_PDUMPER
  bool attempt_load_pdump = false;
#endif

  /* Look for this argument first, before any heap allocation, so we
     can set heap flags properly if we're going to unexec.  */
  if (!initialized && temacs)
    {
#ifdef HAVE_UNEXEC
      if (strcmp (temacs, "dump") == 0 ||
          strcmp (temacs, "bootstrap") == 0)
        gflags.will_dump_with_unexec_ = true;
#endif
#ifdef HAVE_PDUMPER
      if (strcmp (temacs, "pdump") == 0 ||
          strcmp (temacs, "pbootstrap") == 0)
        gflags.will_dump_with_pdumper_ = true;
#endif
#if defined HAVE_PDUMPER || defined HAVE_UNEXEC
      if (strcmp (temacs, "bootstrap") == 0 ||
          strcmp (temacs, "pbootstrap") == 0)
        gflags.will_bootstrap_ = true;
      gflags.will_dump_ =
        will_dump_with_pdumper_p () ||
        will_dump_with_unexec_p ();
      if (will_dump_p ())
        dump_mode = temacs;
#endif
      if (!dump_mode)
        fatal ("Invalid temacs mode '%s'", temacs);
    }
  else if (temacs)
    {
      fatal ("--temacs not supported for unexeced emacs");
    }
  else
    {
      eassert (!temacs);
#ifndef HAVE_UNEXEC
      eassert (!initialized);
#endif
#ifdef HAVE_PDUMPER
      if (!initialized)
	attempt_load_pdump = true;
#endif
    }

#ifdef HAVE_UNEXEC
  if (!will_dump_with_unexec_p ())
    gflags.will_not_unexec_ = true;
#endif

#ifdef WINDOWSNT
  /* Grab our malloc arena space now, before anything important
     happens.  This relies on the static heap being needed only in
     temacs and only if we are going to dump with unexec.  */
  bool use_dynamic_heap = true;
  if (temacs)
    {
      char *temacs_str = NULL, *p;
      for (p = argv[0]; (p = strstr (p, "temacs")) != NULL; p++)
	temacs_str = p;
      if (temacs_str != NULL
	  && (temacs_str == argv[0] || IS_DIRECTORY_SEP (temacs_str[-1])))
	{
	  /* Note that gflags are set at this point only if we have been
	     called with the --temacs=METHOD option.  We assume here that
	     temacs is always called that way, otherwise the functions
	     that rely on gflags, like will_dump_with_pdumper_p below,
	     will not do their job.  */
	  use_dynamic_heap = will_dump_with_pdumper_p ();
	}
    }
  init_heap (use_dynamic_heap);
#endif
#if defined WINDOWSNT || defined HAVE_NTGUI
  /* Set global variables used to detect Windows version.  Do this as
     early as possible.  (w32proc.c calls this function as well, but
     the additional call here is harmless.) */
  cache_system_info ();
#ifdef WINDOWSNT
  /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
     to have non-stub implementations of APIs we need to convert file
     names between UTF-8 and the system's ANSI codepage.  */
  maybe_load_unicows_dll ();
  /* Initialize the codepage for file names, needed to decode
     non-ASCII file names during startup.  */
  w32_init_file_name_codepage ();
  /* Initialize the startup directory, needed for emacs_wd below.  */
  w32_init_current_directory ();
#endif
  w32_init_main_thread ();
#endif

#ifdef HAVE_PDUMPER
  if (attempt_load_pdump)
    load_pdump (argc, argv);
#endif

  argc = maybe_disable_address_randomization (argc, argv);

#if defined GNU_LINUX && defined HAVE_UNEXEC
  if (!initialized)
    {
      char *heap_start = my_heap_start ();
      heap_bss_diff = heap_start - max (my_endbss, my_endbss_static);
    }
#endif

#ifdef RUN_TIME_REMAP
  if (initialized)
    run_time_remap (argv[0]);
#endif

/* If using unexmacosx.c (set by s/darwin.h), we must do this. */
#if defined DARWIN_OS && defined HAVE_UNEXEC
  if (!initialized)
    unexec_init_emacs_zone ();
#endif

  init_standard_fds ();
  atexit (close_output_streams);

  sort_args (argc, argv);
  argc = 0;
  while (argv[argc]) argc++;

  skip_args = 0;
  if (argmatch (argv, argc, "-version", "--version", 3, NULL, &skip_args))
    {
      const char *version, *copyright;
      if (initialized)
	{
	  Lisp_Object tem, tem2;
	  tem = Fsymbol_value (intern_c_string ("emacs-version"));
	  tem2 = Fsymbol_value (intern_c_string ("emacs-copyright"));
	  if (!STRINGP (tem))
	    {
	      fputs ("Invalid value of 'emacs-version'\n", stderr);
	      exit (1);
	    }
	  if (!STRINGP (tem2))
	    {
	      fputs ("Invalid value of 'emacs-copyright'\n", stderr);
	      exit (1);
	    }
	  else
	    {
	      version = SSDATA (tem);
	      copyright = SSDATA (tem2);
	    }
	}
      else
	{
	  version = emacs_version;
	  copyright = emacs_copyright;
	}
      printf (("%s %s\n"
	       "%s\n"
	       "%s comes with ABSOLUTELY NO WARRANTY.\n"
	       "You may redistribute copies of %s\n"
	       "under the terms of the GNU General Public License.\n"
	       "For more information about these matters, "
	       "see the file named COPYING.\n"),
	      PACKAGE_NAME, version, copyright, PACKAGE_NAME, PACKAGE_NAME);
      exit (0);
    }

  emacs_wd = emacs_get_current_dir_name ();
#ifdef HAVE_PDUMPER
  if (dumped_with_pdumper_p ())
    pdumper_record_wd (emacs_wd);
#endif

  if (argmatch (argv, argc, "-chdir", "--chdir", 4, &ch_to_dir, &skip_args))
    {
#ifdef WINDOWSNT
      /* argv[] array is kept in its original ANSI codepage encoding,
	 we need to convert to UTF-8, for chdir to work.  */
      char newdir[MAX_UTF8_PATH];

      filename_from_ansi (ch_to_dir, newdir);
      ch_to_dir = newdir;
#endif
      if (chdir (ch_to_dir) != 0)
        {
          fprintf (stderr, "%s: Can't chdir to %s: %s\n",
                   argv[0], ch_to_dir, strerror (errno));
          exit (1);
        }
      original_pwd = emacs_wd;
#ifdef WINDOWSNT
      /* Reinitialize Emacs's notion of the startup directory.  */
      w32_init_current_directory ();
#endif
      emacs_wd = emacs_get_current_dir_name ();
    }

#if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
  /* Extend the stack space available.  Don't do that if dumping,
     since some systems (e.g. DJGPP) might define a smaller stack
     limit at that time.  And it's not needed on Cygwin, since emacs
     is built with an 8MB stack.  Moreover, the setrlimit call can
     cause problems on Cygwin
     (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html).  */
  struct rlimit rlim;
  if (getrlimit (RLIMIT_STACK, &rlim) == 0
      && 0 <= rlim.rlim_cur && rlim.rlim_cur <= LONG_MAX)
    {
      rlim_t lim = rlim.rlim_cur;

      /* Approximate the amount regex-emacs.c needs per unit of
	 emacs_re_max_failures, then add 33% to cover the size of the
	 smaller stacks that regex-emacs.c successively allocates and
	 discards on its way to the maximum.  */
      int min_ratio = 20 * sizeof (char *);
      int ratio = min_ratio + min_ratio / 3;

      /* Extra space to cover what we're likely to use for other
         reasons.  For example, a typical GC might take 30K stack
         frames.  */
      int extra = (30 * 1000) * 50;

      bool try_to_grow_stack = !noninteractive || initialized;

      if (try_to_grow_stack)
	{
	  rlim_t newlim = emacs_re_max_failures * ratio + extra;

	  /* Round the new limit to a page boundary; this is needed
	     for Darwin kernel 15.4.0 (see Bug#23622) and perhaps
	     other systems.  Do not shrink the stack and do not exceed
	     rlim_max.  Don't worry about exact values of
	     RLIM_INFINITY etc. since in practice when they are
	     nonnegative they are so large that the code does the
	     right thing anyway.  */
	  long pagesize = getpagesize ();
	  newlim += pagesize - 1;
	  if (0 <= rlim.rlim_max && rlim.rlim_max < newlim)
	    newlim = rlim.rlim_max;
	  newlim -= newlim % pagesize;

	  if (newlim > lim	/* in case rlim_t is an unsigned type */
	      && pagesize <= newlim - lim)
	    {
	      rlim.rlim_cur = newlim;
	      if (setrlimit (RLIMIT_STACK, &rlim) == 0)
		lim = newlim;
	    }
	}
      /* If the stack is big enough, let regex-emacs.c use more of it
	 before falling back to heap allocation.  */
      if (lim < extra)
        lim = extra;    /* avoid wrap-around in unsigned subtraction */
      ptrdiff_t max_failures
	= min (lim - extra, min (PTRDIFF_MAX, SIZE_MAX)) / ratio;
      emacs_re_safe_alloca = max (max_failures * min_ratio, MAX_ALLOCA);
    }
#endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */

  clearerr (stdin);

  emacs_backtrace (-1);

#if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
  /* Arrange to get warning messages as memory fills up.  */
  memory_warnings (0, malloc_warning);

  /* Call malloc at least once, to run malloc_initialize_hook.
     Also call realloc and free for consistency.  */
  free (realloc (malloc (4), 4));

#endif	/* not SYSTEM_MALLOC and not HYBRID_MALLOC */

#ifdef MSDOS
  set_binary_mode (STDIN_FILENO, O_BINARY);
  fflush (stdout);
  set_binary_mode (STDOUT_FILENO, O_BINARY);
#endif /* MSDOS */

  /* Set locale, so that initial error messages are localized properly.
     However, skip this if LC_ALL is "C", as it's not needed in that case.
     Skipping helps if dumping with unexec, to ensure that the dumped
     Emacs does not have its system locale tables initialized, as that
     might cause screwups when the dumped Emacs starts up.  */
  char *lc_all = getenv ("LC_ALL");
  if (! (lc_all && strcmp (lc_all, "C") == 0))
    {
      #ifdef HAVE_NS
        ns_pool = ns_alloc_autorelease_pool ();
        ns_init_locale ();
      #endif
      setlocale (LC_ALL, "");
      fixup_locale ();
    }
  text_quoting_flag = using_utf8 ();

  inhibit_window_system = 0;

  /* Handle the -t switch, which specifies filename to use as terminal.  */
  while (1)
    {
      char *term;
      if (argmatch (argv, argc, "-t", "--terminal", 4, &term, &skip_args))
	{
	  emacs_close (STDIN_FILENO);
	  emacs_close (STDOUT_FILENO);
	  int result = emacs_open (term, O_RDWR, 0);
	  if (result != STDIN_FILENO
	      || (fcntl (STDIN_FILENO, F_DUPFD_CLOEXEC, STDOUT_FILENO)
		  != STDOUT_FILENO))
	    {
	      char *errstring = strerror (errno);
	      fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring);
	      exit (EXIT_FAILURE);
	    }
	  if (! isatty (STDIN_FILENO))
	    {
	      fprintf (stderr, "%s: %s: not a tty\n", argv[0], term);
	      exit (EXIT_FAILURE);
	    }
	  fprintf (stderr, "Using %s\n", term);
#ifdef HAVE_WINDOW_SYSTEM
	  inhibit_window_system = true; /* -t => -nw */
#endif
	}
      else
	break;
    }

  /* Command line option --no-windows is deprecated and thus not mentioned
     in the manual and usage information.  */
  if (argmatch (argv, argc, "-nw", "--no-window-system", 6, NULL, &skip_args)
      || argmatch (argv, argc, "-nw", "--no-windows", 6, NULL, &skip_args))
    inhibit_window_system = 1;

  /* Handle the -batch switch, which means don't do interactive display.  */
  noninteractive = 0;
  if (argmatch (argv, argc, "-batch", "--batch", 5, NULL, &skip_args))
    {
      noninteractive = 1;
      Vundo_outer_limit = Qnil;
    }
  if (argmatch (argv, argc, "-script", "--script", 3, &junk, &skip_args))
    {
      noninteractive = 1;	/* Set batch mode.  */
      /* Convert --script to -scriptload, un-skip it, and sort again
	 so that it will be handled in proper sequence.  */
      /* FIXME broken for --script=FILE - is that supposed to work?  */
      argv[skip_args - 1] = (char *) "-scriptload";
      skip_args -= 2;
      sort_args (argc, argv);
    }

  /* Handle the --help option, which gives a usage message.  */
  if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args))
    {
      int i;
      printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv[0]);
      for (i = 0; i < ARRAYELTS (usage_message); i++)
	fputs (usage_message[i], stdout);
      exit (0);
    }

  daemon_type = 0;

#ifndef WINDOWSNT
  /* Make sure IS_DAEMON starts up as false.  */
  daemon_pipe[1] = 0;
#else
  w32_daemon_event = NULL;
#endif


  int sockfd = -1;

  if (argmatch (argv, argc, "-fg-daemon", "--fg-daemon", 10, NULL, &skip_args)
      || argmatch (argv, argc, "-fg-daemon", "--fg-daemon", 10, &dname_arg, &skip_args))
    {
      daemon_type = 1;           /* foreground */
    }
  else if (argmatch (argv, argc, "-daemon", "--daemon", 5, NULL, &skip_args)
      || argmatch (argv, argc, "-daemon", "--daemon", 5, &dname_arg, &skip_args)
      || argmatch (argv, argc, "-bg-daemon", "--bg-daemon", 10, NULL, &skip_args)
      || argmatch (argv, argc, "-bg-daemon", "--bg-daemon", 10, &dname_arg, &skip_args))
    {
      daemon_type = 2;          /* background */
    }


  if (daemon_type > 0)
    {
#ifndef DOS_NT
      if (daemon_type == 2)
        {
          /* Start as a background daemon: fork a new child process which
             will run the rest of the initialization code, then exit.

             Detaching a daemon requires the following steps:
             - fork
             - setsid
             - exit the parent
             - close the tty file-descriptors

             We only want to do the last 2 steps once the daemon is ready to
             serve requests, i.e. after loading .emacs (initialization).
             OTOH initialization may start subprocesses (e.g. ispell) and these
             should be run from the proper process (the one that will end up
             running as daemon) and with the proper "session id" in order for
             them to keep working after detaching, so fork and setsid need to be
             performed before initialization.

             We want to avoid exiting before the server socket is ready, so
             use a pipe for synchronization.  The parent waits for the child
             to close its end of the pipe (using `daemon-initialized')
             before exiting.  */
          if (emacs_pipe (daemon_pipe) != 0)
            {
              fputs ("Cannot pipe!\n", stderr);
              exit (1);
            }
        } /* daemon_type == 2 */

#ifdef HAVE_LIBSYSTEMD
      /* Read the number of sockets passed through by systemd.  */
      int systemd_socket = sd_listen_fds (1);

      if (systemd_socket > 1)
        fputs (("\n"
		"Warning: systemd passed more than one socket to Emacs.\n"
		"Try 'Accept=false' in the Emacs socket unit file.\n"),
	       stderr);
      else if (systemd_socket == 1
	       && (0 < sd_is_socket (SD_LISTEN_FDS_START,
				     AF_UNSPEC, SOCK_STREAM, 1)))
	sockfd = SD_LISTEN_FDS_START;
#endif /* HAVE_LIBSYSTEMD */

#ifdef USE_GTK
      fputs ("\nWarning: due to a long standing Gtk+ bug\nhttps://gitlab.gnome.org/GNOME/gtk/issues/221\n\
Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n",
	     stderr);
#endif /* USE_GTK */

      if (daemon_type == 2)
        {
          pid_t f;
#ifndef DAEMON_MUST_EXEC

          f = fork ();
#else /* DAEMON_MUST_EXEC */
          if (!dname_arg || !strchr (dname_arg, '\n'))
            f = fork ();  /* in orig */
          else
            f = 0;  /* in exec'd */
#endif /* !DAEMON_MUST_EXEC */
          if (f > 0)
            {
              int retval;
              char buf[1];

              /* Close unused writing end of the pipe.  */
              emacs_close (daemon_pipe[1]);

              /* Just wait for the child to close its end of the pipe.  */
              do
                {
                  retval = read (daemon_pipe[0], &buf, 1);
                }
              while (retval == -1 && errno == EINTR);

              if (retval < 0)
                {
                  fputs ("Error reading status from child\n", stderr);
                  exit (1);
                }
              else if (retval == 0)
                {
                  fputs ("Error: server did not start correctly\n", stderr);
                  exit (1);
                }

              emacs_close (daemon_pipe[0]);
              exit (0);
            }
          if (f < 0)
            {
              emacs_perror ("fork");
              exit (EXIT_CANCELED);
            }

#ifdef DAEMON_MUST_EXEC
          {
            /* In orig process, forked as child, OR in exec'd. */
            if (!dname_arg || !strchr (dname_arg, '\n'))
              {  /* In orig, child: now exec w/special daemon name. */
                char fdStr[80];
                int fdStrlen =
                  snprintf (fdStr, sizeof fdStr,
                            "--bg-daemon=\n%d,%d\n%s", daemon_pipe[0],
                            daemon_pipe[1], dname_arg ? dname_arg : "");

                if (! (0 <= fdStrlen && fdStrlen < sizeof fdStr))
                  {
                    fputs ("daemon: child name too long\n", stderr);
                    exit (EXIT_CANNOT_INVOKE);
                  }

                argv[skip_args] = fdStr;

                fcntl (daemon_pipe[0], F_SETFD, 0);
                fcntl (daemon_pipe[1], F_SETFD, 0);
                execvp (argv[0], argv);
                emacs_perror (argv[0]);
                exit (errno == ENOENT ? EXIT_ENOENT : EXIT_CANNOT_INVOKE);
              }

            /* In exec'd: parse special dname into pipe and name info. */
            if (!dname_arg || !*dname_arg || strnlen (dname_arg, 71) == 71
		|| !strchr (dname_arg, '\n'))
	      {
		fputs ("emacs daemon: daemon name absent or too long\n",
		       stderr);
		exit (EXIT_CANNOT_INVOKE);
	      }
            dname_arg2[0] = '\0';
            sscanf (dname_arg, "\n%d,%d\n%s", &(daemon_pipe[0]), &(daemon_pipe[1]),
                    dname_arg2);
            dname_arg = *dname_arg2 ? dname_arg2 : NULL;
            fcntl (daemon_pipe[1], F_SETFD, FD_CLOEXEC);
          }
#endif /* DAEMON_MUST_EXEC */

          /* Close unused reading end of the pipe.  */
          emacs_close (daemon_pipe[0]);

          setsid ();
        } /* daemon_type == 2 */
#elif defined(WINDOWSNT)
      /* Indicate that we want daemon mode.  */
      w32_daemon_event = CreateEvent (NULL, TRUE, FALSE, W32_DAEMON_EVENT);
      if (w32_daemon_event == NULL)
        {
          fprintf (stderr, "Couldn't create MS-Windows event for daemon: %s\n",
		   w32_strerror (0));
          exit (1);
        }
#else /* MSDOS */
      fputs ("This platform does not support daemon mode.\n", stderr);
      exit (1);
#endif /* MSDOS */
      if (dname_arg)
	daemon_name = xstrdup (dname_arg);
    }

#if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
  && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
  /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
     that causes an infinite recursive loop with FreeBSD.  See
     Bug#14569.  The part of this bug involving Cygwin is no longer
     relevant, now that Cygwin defines HYBRID_MALLOC.  */
  if (!noninteractive || !will_dump_p ())
    malloc_enable_thread ();
#endif

  init_signals ();

  noninteractive1 = noninteractive;

  /* Perform basic initializations (not merely interning symbols).  */

  if (!initialized)
    {
      init_alloc_once ();
      init_obarray_once ();
      init_eval_once ();
      init_charset_once ();
      init_coding_once ();
      init_syntax_once ();	/* Create standard syntax table.  */
      init_category_once ();	/* Create standard category table.  */
      init_casetab_once ();	/* Must be done before init_buffer_once.  */
      init_buffer_once ();	/* Create buffer table and some buffers.  */
      init_minibuf_once ();	/* Create list of minibuffers.  */
				/* Must precede init_window_once.  */

      /* Call syms_of_xfaces before init_window_once because that
	 function creates Vterminal_frame.  Termcap frames now use
	 faces, and the face implementation uses some symbols as
	 face names.  */
      syms_of_xfaces ();
      /* XXX syms_of_keyboard uses some symbols in keymap.c.  It would
         be better to arrange things not to have this dependency.  */
      syms_of_keymap ();
      /* Call syms_of_keyboard before init_window_once because
	 keyboard sets up symbols that include some face names that
	 the X support will want to use.  This can happen when
	 Emacs starts up from scratch (e.g., temacs).  */
      syms_of_keyboard ();

      /* Called before syms_of_fileio, because it sets up Qerror_condition.  */
      syms_of_data ();
      syms_of_fns ();  /* Before syms_of_charset which uses hash tables.  */
      syms_of_fileio ();
      /* Before syms_of_coding to initialize Vgc_cons_threshold.  */
      syms_of_alloc ();
      /* May call Ffuncall and so GC, thus the latter should be initialized.  */
      init_print_once ();
      /* Before syms_of_coding because it initializes Qcharsetp.  */
      syms_of_charset ();
      /* Before init_window_once, because it sets up the
	 Vcoding_system_hash_table.  */
      syms_of_coding ();	/* This should be after syms_of_fileio.  */
      init_frame_once ();       /* Before init_window_once.  */
      init_window_once ();	/* Init the window system.  */
#ifdef HAVE_WINDOW_SYSTEM
      init_fringe_once ();	/* Swap bitmaps if necessary.  */
#endif /* HAVE_WINDOW_SYSTEM */
    }

  init_alloc ();
  init_bignum ();
  init_threads ();
  init_eval ();
#ifdef HAVE_PGTK
  init_pgtkterm ();   /* before init_atimer(). */
#endif
  init_atimer ();
  running_asynch_code = 0;
  init_random ();

#ifdef HAVE_PDUMPER
  if (dumped_with_pdumper_p ())
    init_xfaces ();
#endif

#if defined HAVE_JSON && !defined WINDOWSNT
  init_json ();
#endif

#ifdef HAVE_NATIVE_COMP
  if (!initialized)
    syms_of_comp ();
#endif

#ifdef HAVE_GTK4
  syms_of_pgtkembed ();
#endif

  no_loadup
    = argmatch (argv, argc, "-nl", "--no-loadup", 6, NULL, &skip_args);

  no_site_lisp
    = argmatch (argv, argc, "-nsl", "--no-site-lisp", 11, NULL, &skip_args);

  build_details = ! argmatch (argv, argc, "-no-build-details",
			      "--no-build-details", 7, NULL, &skip_args);

#ifdef HAVE_MODULES
  bool module_assertions
    = argmatch (argv, argc, "-module-assertions", "--module-assertions", 15,
                NULL, &skip_args);
  if (will_dump_p () && module_assertions)
    {
      fputs ("Module assertions are not supported during dumping\n", stderr);
      exit (1);
    }
  init_module_assertions (module_assertions);
#endif

#ifdef HAVE_NS
  if (!noninteractive)
    {
#ifdef NS_IMPL_COCOA
      /* Started from GUI? */
      /* FIXME: Do the right thing if get_homedir returns "", or if
         chdir fails.  */
      if (! inhibit_window_system && ! isatty (STDIN_FILENO) && ! ch_to_dir)
        chdir (get_homedir ());
      if (skip_args < argc)
        {
          if (!strncmp (argv[skip_args], "-psn", 4))
            {
              skip_args += 1;
              if (! ch_to_dir) chdir (get_homedir ());
            }
          else if (skip_args+1 < argc && !strncmp (argv[skip_args+1], "-psn", 4))
            {
              skip_args += 2;
              if (! ch_to_dir) chdir (get_homedir ());
            }
        }
#endif  /* COCOA */
    }
#endif /* HAVE_NS */

#ifdef HAVE_X_WINDOWS
  /* Stupid kludge to catch command-line display spec.  We can't
     handle this argument entirely in window system dependent code
     because we don't even know which window system dependent code
     to run until we've recognized this argument.  */
  {
    char *displayname = 0;
    int count_before = skip_args;

    /* Skip any number of -d options, but only use the last one.  */
    while (1)
      {
	int count_before_this = skip_args;

	if (argmatch (argv, argc, "-d", "--display", 3, &displayname, &skip_args))
	  display_arg = 1;
	else if (argmatch (argv, argc, "-display", 0, 3, &displayname, &skip_args))
	  display_arg = 1;
	else
	  break;

	count_before = count_before_this;
      }

    /* If we have the form --display=NAME,
       convert it into  -d name.
       This requires inserting a new element into argv.  */
    if (displayname && count_before < skip_args)
      {
	if (skip_args == count_before + 1)
	  {
	    memmove (argv + count_before + 3, argv + count_before + 2,
		     (argc - (count_before + 2)) * sizeof *argv);
	    argv[count_before + 2] = displayname;
	    argc++;
	  }
	argv[count_before + 1] = (char *) "-d";
      }

    if (! no_site_lisp)
      {
        if (argmatch (argv, argc, "-Q", "--quick", 3, NULL, &skip_args)
            || argmatch (argv, argc, "-quick", 0, 2, NULL, &skip_args))
          no_site_lisp = 1;
      }

    /* Don't actually discard this arg.  */
    skip_args = count_before;
  }
#else  /* !HAVE_X_WINDOWS */
  if (! no_site_lisp)
  {
    int count_before = skip_args;

    if (argmatch (argv, argc, "-Q", "--quick", 3, NULL, &skip_args)
        || argmatch (argv, argc, "-quick", 0, 2, NULL, &skip_args))
      no_site_lisp = 1;

    skip_args = count_before;
  }
#endif

  /* argmatch must not be used after here,
     except when building temacs
     because the -d argument has not been skipped in skip_args.  */

#ifdef MSDOS
  /* Call early 'cause init_environment needs it.  */
  init_dosfns ();
  /* Set defaults for several environment variables.  */
  if (initialized)
    init_environment (argc, argv, skip_args);
  else
    tzset ();
#endif /* MSDOS */

#ifdef HAVE_KQUEUE
  globals_of_kqueue ();
#endif

#ifdef HAVE_GFILENOTIFY
  globals_of_gfilenotify ();
#endif

  /* Initialize and GC-protect Vinitial_environment and
     Vprocess_environment before set_initial_environment fills them
     in.  */
  if (!initialized)
    syms_of_callproc ();
  /* egetenv is a pretty low-level facility, which may get called in
     many circumstances; it seems flimsy to put off initializing it
     until calling init_callproc.  Do not do it when dumping.  */
  if (!will_dump_p ())
    set_initial_environment ();

#ifdef WINDOWSNT
  globals_of_w32 ();
#ifdef HAVE_W32NOTIFY
  globals_of_w32notify ();
#endif
  /* Initialize environment from registry settings.  Make sure to do
     this only after calling set_initial_environment so that
     Vinitial_environment and Vprocess_environment will contain only
     variables from the parent process without modifications from
     Emacs.  */
  init_environment (argv);
  init_ntproc (will_dump_p ()); /* must precede init_editfns.  */
#endif

  /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
     if this is not done.  Do it after set_global_environment so that we
     don't pollute Vglobal_environment.  */
  /* Setting LANG here will defeat the startup locale processing...  */
#ifdef AIX
  xputenv ("LANG=C");
#endif

  /* Init buffer storage and default directory of main buffer.  */
  init_buffer ();

  init_callproc_1 ();	/* Must precede init_cmdargs and init_sys_modes.  */

  /* Must precede init_lread.  */
  init_cmdargs (argc, argv, skip_args, original_pwd);

  if (initialized)
    {
      /* Erase any pre-dump messages in the message log, to avoid confusion.  */
      Lisp_Object old_log_max;
      old_log_max = Vmessage_log_max;
      XSETFASTINT (Vmessage_log_max, 0);
      message_dolog ("", 0, 1, 0);
      Vmessage_log_max = old_log_max;
    }

  init_callproc ();	/* Must follow init_cmdargs but not init_sys_modes.  */
  init_fileio ();
  init_lread ();
#ifdef WINDOWSNT
  /* Check to see if Emacs has been installed correctly.  */
  check_windows_init_file ();
#endif

  /* Intern the names of all standard functions and variables;
     define standard keys.  */

  if (!initialized)
    {
      /* The basic levels of Lisp must come first.  Note that
	 syms_of_data and some others have already been called.  */
      syms_of_chartab ();
      syms_of_lread ();
      syms_of_print ();
      syms_of_eval ();
      syms_of_floatfns ();

      syms_of_buffer ();
      syms_of_bytecode ();
      syms_of_callint ();
      syms_of_casefiddle ();
      syms_of_casetab ();
      syms_of_category ();
      syms_of_ccl ();
      syms_of_character ();
      syms_of_cmds ();
      syms_of_dired ();
      syms_of_display ();
      syms_of_doc ();
      syms_of_editfns ();
      syms_of_emacs ();
      syms_of_filelock ();
      syms_of_indent ();
      syms_of_insdel ();
      /* syms_of_keymap (); */
      syms_of_macros ();
      syms_of_marker ();
      syms_of_minibuf ();
      syms_of_process ();
      syms_of_search ();
      syms_of_sysdep ();
      syms_of_timefns ();
      syms_of_frame ();
      syms_of_syntax ();
      syms_of_terminal ();
      syms_of_term ();
      syms_of_undo ();

#ifdef HAVE_MODULES
      syms_of_module ();
#endif

#ifdef HAVE_SOUND
      syms_of_sound ();
#endif
      syms_of_textprop ();
      syms_of_composite ();
#ifdef WINDOWSNT
      syms_of_ntproc ();
#endif /* WINDOWSNT */
#if defined CYGWIN
      syms_of_cygw32 ();
#endif
      syms_of_window ();
      syms_of_xdisp ();
      syms_of_font ();
#ifdef HAVE_WINDOW_SYSTEM
      syms_of_fringe ();
      syms_of_image ();
#endif /* HAVE_WINDOW_SYSTEM */
#ifdef HAVE_X_WINDOWS
      syms_of_xterm ();
      syms_of_xfns ();
      syms_of_xmenu ();
      syms_of_fontset ();
      syms_of_xwidget ();
      syms_of_xsettings ();
#ifdef HAVE_X_SM
      syms_of_xsmfns ();
#endif
#ifdef HAVE_X11
      syms_of_xselect ();
#endif
#endif /* HAVE_X_WINDOWS */

      syms_of_xml ();

#ifdef HAVE_LCMS2
      syms_of_lcms2 ();
#endif

#ifdef HAVE_ZLIB
      syms_of_decompress ();
#endif

      syms_of_menu ();

#ifdef HAVE_NTGUI
      syms_of_w32term ();
      syms_of_w32fns ();
      syms_of_w32menu ();
      syms_of_fontset ();
#endif /* HAVE_NTGUI */

#if defined HAVE_NTGUI || defined CYGWIN
      syms_of_w32cygwinx ();
#endif

#if defined WINDOWSNT || defined HAVE_NTGUI
      syms_of_w32select ();
#endif

#ifdef MSDOS
      syms_of_xmenu ();
      syms_of_dosfns ();
      syms_of_msdos ();
      syms_of_win16select ();
#endif	/* MSDOS */

#ifdef HAVE_NS
      syms_of_nsterm ();
      syms_of_nsfns ();
      syms_of_nsmenu ();
      syms_of_nsselect ();
      syms_of_fontset ();
#endif /* HAVE_NS */
#ifdef HAVE_PGTK
      syms_of_pgtkterm();
      syms_of_pgtkfns();
      syms_of_pgtkselect ();
      syms_of_pgtkmenu ();
      syms_of_pgtkim ();
      syms_of_fontset ();
      syms_of_xsettings ();
      syms_of_xwidget ();
#endif

      syms_of_gnutls ();

#ifdef HAVE_INOTIFY
      syms_of_inotify ();
#endif /* HAVE_INOTIFY */

#ifdef HAVE_KQUEUE
      syms_of_kqueue ();
#endif /* HAVE_KQUEUE */

#ifdef HAVE_GFILENOTIFY
      syms_of_gfilenotify ();
#endif /* HAVE_GFILENOTIFY */

#ifdef HAVE_DBUS
      syms_of_dbusbind ();
#endif /* HAVE_DBUS */

#ifdef WINDOWSNT
      syms_of_ntterm ();
#ifdef HAVE_W32NOTIFY
      syms_of_w32notify ();
#endif /* HAVE_W32NOTIFY */
#endif /* WINDOWSNT */

      syms_of_threads ();
      syms_of_profiler ();
      syms_of_pdumper ();

#ifdef HAVE_JSON
      syms_of_json ();
#endif

#ifdef USE_GTK
      syms_of_gtkinter ();
#endif

      keys_of_casefiddle ();
      keys_of_cmds ();
      keys_of_buffer ();
      keys_of_keyboard ();
      keys_of_keymap ();
      keys_of_window ();
    }
  else
    {
      /* Initialization that must be done even if the global variable
	 initialized is non zero.  */
#ifdef HAVE_NTGUI
      globals_of_w32font ();
      globals_of_w32fns ();
      globals_of_w32menu ();
#endif  /* HAVE_NTGUI */

#if defined WINDOWSNT || defined HAVE_NTGUI
      globals_of_w32select ();
#endif
    }

  init_charset ();

  /* This calls putenv and so must precede init_process_emacs.  */
  init_timefns ();

  init_editfns ();

  /* These two call putenv.  */
#ifdef HAVE_DBUS
  init_dbusbind ();
#endif
#if defined(USE_GTK)
#ifndef HAVE_PGTK
  init_xterm ();
#endif
#endif

  /* This can create a thread that may call getenv, so it must follow
     all calls to putenv and setenv.  Also, this sets up
     add_keyboard_wait_descriptor, which init_display uses.  */
  init_process_emacs (sockfd);

  init_keyboard ();	/* This too must precede init_sys_modes.  */
  init_display ();	/* Determine terminal type.  Calls init_sys_modes.  */
#if HAVE_W32NOTIFY
  if (noninteractive)
    init_crit ();	/* w32notify.c needs this in batch mode.  */
#endif	/* HAVE_W32NOTIFY */
  init_xdisp ();
#ifdef HAVE_WINDOW_SYSTEM
  init_fringe ();
#endif /* HAVE_WINDOW_SYSTEM */
  init_macros ();
  init_window ();
  init_font ();

  if (!initialized)
    {
      char *file;
      /* Handle -l loadup, args passed by Makefile.  */
      if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args))
	{
#ifdef WINDOWSNT
	  char file_utf8[MAX_UTF8_PATH];

	  if (filename_from_ansi (file, file_utf8) == 0)
	    file = file_utf8;
#endif
	  Vtop_level = list2 (Qload, build_unibyte_string (file));
	}
      /* Unless next switch is -nl, load "loadup.el" first thing.  */
      if (! no_loadup)
	Vtop_level = list2 (Qload, build_string ("loadup.el"));
    }

  /* Set up for profiling.  This is known to work on FreeBSD,
     GNU/Linux and MinGW.  It might work on some other systems too.
     Give it a try and tell us if it works on your system.  To compile
     for profiling, use the configure option --enable-profiling.  */
#ifdef PROFILING
  if (initialized)
    {
      atexit (_mcleanup);
      monstartup ((uintptr_t) __executable_start, (uintptr_t) &etext);
    }
  else
    moncontrol (0);
#endif

  initialized = true;

  if (dump_mode)
    Vdump_mode = build_string (dump_mode);

  /* Enter editor command loop.  This never returns.  */
  Frecursive_edit ();
  eassume (false);
}
\f
/* Sort the args so we can find the most important ones
   at the beginning of argv.  */

/* First, here's a table of all the standard options.  */

struct standard_args
{
  const char *name;
  const char *longname;
  int priority;
  int nargs;
};

static const struct standard_args standard_args[] =
{
  { "-version", "--version", 150, 0 },
  { "-chdir", "--chdir", 130, 1 },
  { "-t", "--terminal", 120, 1 },
  { "-nw", "--no-window-system", 110, 0 },
  { "-nw", "--no-windows", 110, 0 },
  { "-batch", "--batch", 100, 0 },
  { "-script", "--script", 100, 1 },
  { "-daemon", "--daemon", 99, 0 },
  { "-bg-daemon", "--bg-daemon", 99, 0 },
  { "-fg-daemon", "--fg-daemon", 99, 0 },
  { "-help", "--help", 90, 0 },
  { "-nl", "--no-loadup", 70, 0 },
  { "-nsl", "--no-site-lisp", 65, 0 },
  { "-no-build-details", "--no-build-details", 63, 0 },
#ifdef HAVE_MODULES
  { "-module-assertions", "--module-assertions", 62, 0 },
#endif
  /* -d must come last before the options handled in startup.el.  */
  { "-d", "--display", 60, 1 },
  { "-display", 0, 60, 1 },
  /* Now for the options handled in `command-line' (startup.el).  */
  /* (Note that to imply -nsl, -Q is partially handled here.)  */
  { "-Q", "--quick", 55, 0 },
  { "-quick", 0, 55, 0 },
  { "-q", "--no-init-file", 50, 0 },
  { "-no-init-file", 0, 50, 0 },
  { "-no-x-resources", "--no-x-resources", 40, 0 },
  { "-no-site-file", "--no-site-file", 40, 0 },
  { "-u", "--user", 30, 1 },
  { "-user", 0, 30, 1 },
  { "-debug-init", "--debug-init", 20, 0 },
  { "-iconic", "--iconic", 15, 0 },
  { "-D", "--basic-display", 12, 0},
  { "-basic-display", 0, 12, 0},
  { "-nbc", "--no-blinking-cursor", 12, 0 },
  /* Now for the options handled in `command-line-1' (startup.el).  */
  { "-nbi", "--no-bitmap-icon", 10, 0 },
  { "-bg", "--background-color", 10, 1 },
  { "-background", 0, 10, 1 },
  { "-fg", "--foreground-color", 10, 1 },
  { "-foreground", 0, 10, 1 },
  { "-bd", "--border-color", 10, 1 },
  { "-bw", "--border-width", 10, 1 },
  { "-ib", "--internal-border", 10, 1 },
  { "-ms", "--mouse-color", 10, 1 },
  { "-cr", "--cursor-color", 10, 1 },
  { "-fn", "--font", 10, 1 },
  { "-font", 0, 10, 1 },
  { "-fs", "--fullscreen", 10, 0 },
  { "-fw", "--fullwidth", 10, 0 },
  { "-fh", "--fullheight", 10, 0 },
  { "-mm", "--maximized", 10, 0 },
  { "-g", "--geometry", 10, 1 },
  { "-geometry", 0, 10, 1 },
  { "-T", "--title", 10, 1 },
  { "-title", 0, 10, 1 },
  { "-name", "--name", 10, 1 },
  { "-xrm", "--xrm", 10, 1 },
  { "-parent-id", "--parent-id", 10, 1 },
  { "-r", "--reverse-video", 5, 0 },
  { "-rv", 0, 5, 0 },
  { "-reverse", 0, 5, 0 },
  { "-hb", "--horizontal-scroll-bars", 5, 0 },
  { "-vb", "--vertical-scroll-bars", 5, 0 },
  { "-color", "--color", 5, 0},
  { "-no-splash", "--no-splash", 3, 0 },
  { "-no-desktop", "--no-desktop", 3, 0 },
  /* The following two must be just above the file-name args, to get
     them out of our way, but without mixing them with file names.  */
  { "-temacs", "--temacs", 1, 1 },
#ifdef HAVE_PDUMPER
  { "-dump-file", "--dump-file", 1, 1 },
#endif
#ifdef HAVE_NS
  { "-NSAutoLaunch", 0, 5, 1 },
  { "-NXAutoLaunch", 0, 5, 1 },
  { "-_NSMachLaunch", 0, 85, 1 },
  { "-MachLaunch", 0, 85, 1 },
  { "-macosx", 0, 85, 0 },
  { "-NSHost", 0, 85, 1 },
#endif
  /* These have the same priority as ordinary file name args,
     so they are not reordered with respect to those.  */
  { "-L", "--directory", 0, 1 },
  { "-directory", 0, 0, 1 },
  { "-l", "--load", 0, 1 },
  { "-load", 0, 0, 1 },
  /* This has no longname, because using --scriptload confuses sort_args,
     because then the --script long option seems to match twice; ie
     you can't have a long option which is a prefix of another long
     option.  In any case, this is entirely an internal option.  */
  { "-scriptload", NULL, 0, 1 },
  { "-f", "--funcall", 0, 1 },
  { "-funcall", 0, 0, 1 },
  { "-eval", "--eval", 0, 1 },
  { "-execute", "--execute", 0, 1 },
  { "-find-file", "--find-file", 0, 1 },
  { "-visit", "--visit", 0, 1 },
  { "-file", "--file", 0, 1 },
  { "-insert", "--insert", 0, 1 },
#ifdef HAVE_NS
  { "-NXOpen", 0, 0, 1 },
  { "-NXOpenTemp", 0, 0, 1 },
  { "-NSOpen", 0, 0, 1 },
  { "-NSOpenTemp", 0, 0, 1 },
  { "-GSFilePath", 0, 0, 1 },
#endif
  /* This should be processed after ordinary file name args and the like.  */
  { "-kill", "--kill", -10, 0 },
};

/* Reorder the elements of ARGV (assumed to have ARGC elements)
   so that the highest priority ones come first.
   Do not change the order of elements of equal priority.
   If an option takes an argument, keep it and its argument together.

   If an option that takes no argument appears more
   than once, eliminate all but one copy of it.  */

static void
sort_args (int argc, char **argv)
{
  char **new = xmalloc (argc * sizeof *new);
  /* For each element of argv,
     the corresponding element of options is:
     0 for an option that takes no arguments,
     1 for an option that takes one argument, etc.
     -1 for an ordinary non-option argument.  */
  int *options = xnmalloc (argc, sizeof *options);
  int *priority = xnmalloc (argc, sizeof *priority);
  int to = 1;
  int incoming_used = 1;
  int from;
  int i;

  /* Categorize all the options,
     and figure out which argv elts are option arguments.  */
  for (from = 1; from < argc; from++)
    {
      options[from] = -1;
      priority[from] = 0;
      if (argv[from][0] == '-')
	{
	  int match;

	  /* If we have found "--", don't consider
	     any more arguments as options.  */
	  if (argv[from][1] == '-' && argv[from][2] == 0)
	    {
	      /* Leave the "--", and everything following it, at the end.  */
	      for (; from < argc; from++)
		{
		  priority[from] = -100;
		  options[from] = -1;
		}
	      break;
	    }

	  /* Look for a match with a known old-fashioned option.  */
	  for (i = 0; i < ARRAYELTS (standard_args); i++)
	    if (!strcmp (argv[from], standard_args[i].name))
	      {
		options[from] = standard_args[i].nargs;
		priority[from] = standard_args[i].priority;
		if (from + standard_args[i].nargs >= argc)
		  fatal ("Option '%s' requires an argument\n", argv[from]);
		from += standard_args[i].nargs;
		goto done;
	      }

	  /* Look for a match with a known long option.
	     MATCH is -1 if no match so far, -2 if two or more matches so far,
	     >= 0 (the table index of the match) if just one match so far.  */
	  if (argv[from][1] == '-')
	    {
	      char const *equals = strchr (argv[from], '=');
	      ptrdiff_t thislen =
		equals ? equals - argv[from] : strlen (argv[from]);

	      match = -1;

	      for (i = 0; i < ARRAYELTS (standard_args); i++)
		if (standard_args[i].longname
		    && !strncmp (argv[from], standard_args[i].longname,
				 thislen))
		  {
		    if (match == -1)
		      match = i;
		    else
		      match = -2;
		  }

	      /* If we found exactly one match, use that.  */
	      if (match >= 0)
		{
		  options[from] = standard_args[match].nargs;
		  priority[from] = standard_args[match].priority;
		  /* If --OPTION=VALUE syntax is used,
		     this option uses just one argv element.  */
		  if (equals != 0)
		    options[from] = 0;
		  if (from + options[from] >= argc)
		    fatal ("Option '%s' requires an argument\n", argv[from]);
		  from += options[from];
		}
	      else if (match == -2)
		{
		  /* This is an internal error.
		     Eg if one long option is a prefix of another.  */
		  fprintf (stderr, "Option '%s' matched multiple standard arguments\n", argv[from]);
		}
	      /* Should we not also warn if there was no match?	 */
	    }
	done: ;
	}
    }

  /* Copy the arguments, in order of decreasing priority, to NEW.  */
  new[0] = argv[0];
  while (incoming_used < argc)
    {
      int best = -1;
      int best_priority = -9999;

      /* Find the highest priority remaining option.
	 If several have equal priority, take the first of them.  */
      for (from = 1; from < argc; from++)
	{
	  if (argv[from] != 0 && priority[from] > best_priority)
	    {
	      best_priority = priority[from];
	      best = from;
	    }
	  /* Skip option arguments--they are tied to the options.  */
	  if (options[from] > 0)
	    from += options[from];
	}

      if (best < 0)
	emacs_abort ();

      /* Copy the highest priority remaining option, with its args, to NEW.
         Unless it is a duplicate of the previous one.  */
      if (! (options[best] == 0
	     && ! strcmp (new[to - 1], argv[best])))
	{
	  new[to++] = argv[best];
	  for (i = 0; i < options[best]; i++)
	    new[to++] = argv[best + i + 1];
	}

      incoming_used += 1 + (options[best] > 0 ? options[best] : 0);

      /* Clear out this option in ARGV.  */
      argv[best] = 0;
      for (i = 0; i < options[best]; i++)
	argv[best + i + 1] = 0;
    }

  /* If duplicate options were deleted, fill up extra space with null ptrs.  */
  while (to < argc)
    new[to++] = 0;

  memcpy (argv, new, sizeof (char *) * argc);

  xfree (options);
  xfree (new);
  xfree (priority);
}
\f
DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P",
       doc: /* Exit the Emacs job and kill it.
If ARG is an integer, return ARG as the exit program code.
If ARG is a string, stuff it as keyboard input.

This function is called upon receipt of the signals SIGTERM
or SIGHUP, and upon SIGINT in batch mode.

The value of `kill-emacs-hook', if not void,
is a list of functions (of no args),
all of which are called before Emacs is actually killed.  */
       attributes: noreturn)
  (Lisp_Object arg)
{
  int exit_code;

#ifdef HAVE_LIBSYSTEMD
  sd_notify(0, "STOPPING=1");
#endif /* HAVE_LIBSYSTEMD */

  /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
     set.  */
  waiting_for_input = 0;
  if (noninteractive)
    safe_run_hooks (Qkill_emacs_hook);
  else
    run_hook (Qkill_emacs_hook);

#ifdef HAVE_X_WINDOWS
  /* Transfer any clipboards we own to the clipboard manager.  */
  x_clipboard_manager_save_all ();
#endif

  shut_down_emacs (0, (STRINGP (arg) && !feof (stdin)) ? arg : Qnil);

#ifdef HAVE_NS
  ns_release_autorelease_pool (ns_pool);
#endif

  /* If we have an auto-save list file,
     kill it because we are exiting Emacs deliberately (not crashing).
     Do it after shut_down_emacs, which does an auto-save.  */
  if (STRINGP (Vauto_save_list_file_name))
    {
      Lisp_Object listfile;
      listfile = Fexpand_file_name (Vauto_save_list_file_name, Qnil);
      unlink (SSDATA (listfile));
    }

  if (FIXNUMP (arg))
    exit_code = (XFIXNUM (arg) < 0
		 ? XFIXNUM (arg) | INT_MIN
		 : XFIXNUM (arg) & INT_MAX);
  else
    exit_code = EXIT_SUCCESS;
  exit (exit_code);
}


/* Perform an orderly shutdown of Emacs.  Autosave any modified
   buffers, kill any child processes, clean up the terminal modes (if
   we're in the foreground), and other stuff like that.  Don't perform
   any redisplay; this may be called when Emacs is shutting down in
   the background, or after its X connection has died.

   If SIG is a signal number, print a message for it.

   This is called by fatal signal handlers, X protocol error handlers,
   and Fkill_emacs.  */

void
shut_down_emacs (int sig, Lisp_Object stuff)
{
  /* Prevent running of hooks from now on.  */
  Vrun_hooks = Qnil;

  /* Don't update display from now on.  */
  Vinhibit_redisplay = Qt;

  /* If we are controlling the terminal, reset terminal modes.  */
#ifndef DOS_NT
  pid_t tpgrp = tcgetpgrp (STDIN_FILENO);
  if (tpgrp != -1 && tpgrp == getpgrp ())
    {
      reset_all_sys_modes ();
      if (sig && sig != SIGTERM)
	{
	  static char const fmt[] = "Fatal error %d: %n%s\n";
	  char buf[max ((sizeof fmt - sizeof "%d%n%s\n"
			 + INT_STRLEN_BOUND (int) + 1),
			min (PIPE_BUF, MAX_ALLOCA))];
	  char const *sig_desc = safe_strsignal (sig);
	  int nlen;
	  int buflen = snprintf (buf, sizeof buf, fmt, sig, &nlen, sig_desc);
	  if (0 <= buflen && buflen < sizeof buf)
	    emacs_write (STDERR_FILENO, buf, buflen);
	  else
	    {
	      emacs_write (STDERR_FILENO, buf, nlen);
	      emacs_write (STDERR_FILENO, sig_desc, strlen (sig_desc));
	      emacs_write (STDERR_FILENO, fmt + sizeof fmt - 2, 1);
	    }
	}
    }
#else
  fflush (stdout);
  reset_all_sys_modes ();
#endif

  stuff_buffered_input (stuff);

  inhibit_sentinels = 1;
  kill_buffer_processes (Qnil);
  Fdo_auto_save (Qt, Qnil);

  unlock_all_files ();

  /* There is a tendency for a SIGIO signal to arrive within exit,
     and cause a SIGHUP because the input descriptor is already closed.  */
  unrequest_sigio ();

  /* Do this only if terminating normally, we want glyph matrices
     etc. in a core dump.  */
  if (sig == 0 || sig == SIGTERM)
    {
      check_glyph_memory ();
      check_message_stack ();
    }

#ifdef MSDOS
  dos_cleanup ();
#endif

#ifdef HAVE_NS
  ns_term_shutdown (sig);
#endif

#ifdef HAVE_LIBXML2
  xml_cleanup_parser ();
#endif

#ifdef WINDOWSNT
  term_ntproc (0);
#endif
}


\f
#ifdef HAVE_UNEXEC

#include "unexec.h"

DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0,
       doc: /* Dump current state of Emacs into executable file FILENAME.
Take symbols from SYMFILE (presumably the file you executed to run Emacs).
This is used in the file `loadup.el' when building Emacs.

You must run Emacs in batch mode in order to dump it.  */)
  (Lisp_Object filename, Lisp_Object symfile)
{
  Lisp_Object tem;
  Lisp_Object symbol;
  ptrdiff_t count = SPECPDL_INDEX ();

  check_pure_size ();

  if (! noninteractive)
    error ("Dumping Emacs works only in batch mode");

  if (dumped_with_unexec_p ())
    error ("Emacs can be dumped using unexec only once");

  if (definitely_will_not_unexec_p ())
    error ("This Emacs instance was not started in temacs mode");

# if defined GNU_LINUX && defined HAVE_UNEXEC

  /* Warn if the gap between BSS end and heap start is larger than this.  */
#  define MAX_HEAP_BSS_DIFF (1024 * 1024)

  if (heap_bss_diff > MAX_HEAP_BSS_DIFF)
    fprintf (stderr,
	     ("**************************************************\n"
	      "Warning: Your system has a gap between BSS and the\n"
	      "heap (%"PRIuMAX" bytes). This usually means that exec-shield\n"
	      "or something similar is in effect.  The dump may\n"
	      "fail because of this.  See the section about\n"
	      "exec-shield in etc/PROBLEMS for more information.\n"
	      "**************************************************\n"),
	     heap_bss_diff);
# endif

  /* Bind `command-line-processed' to nil before dumping,
     so that the dumped Emacs will process its command line
     and set up to work with X windows if appropriate.  */
  symbol = intern ("command-line-processed");
  specbind (symbol, Qnil);

  CHECK_STRING (filename);
  filename = Fexpand_file_name (filename, Qnil);
  filename = ENCODE_FILE (filename);
  if (!NILP (symfile))
    {
      CHECK_STRING (symfile);
      if (SCHARS (symfile))
	{
	  symfile = Fexpand_file_name (symfile, Qnil);
	  symfile = ENCODE_FILE (symfile);
	}
    }

  tem = Vpurify_flag;
  Vpurify_flag = Qnil;

# ifdef HYBRID_MALLOC
  {
    static char const fmt[] = "%d of %d static heap bytes used";
    char buf[sizeof fmt + 2 * (INT_STRLEN_BOUND (int) - 2)];
    int max_usage = max_bss_sbrk_ptr - bss_sbrk_buffer;
    sprintf (buf, fmt, max_usage, STATIC_HEAP_SIZE);
    /* Don't log messages, because at this point buffers cannot be created.  */
    message1_nolog (buf);
  }
# endif

  fflush (stdout);
  /* Tell malloc where start of impure now is.  */
  /* Also arrange for warnings when nearly out of space.  */
# if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC && !defined WINDOWSNT
  /* On Windows, this was done before dumping, and that once suffices.
     Meanwhile, my_edata is not valid on Windows.  */
  memory_warnings (my_edata, malloc_warning);
# endif

  struct gflags old_gflags = gflags;
  gflags.will_dump_ = false;
  gflags.will_dump_with_unexec_ = false;
  gflags.dumped_with_unexec_ = true;

  alloc_unexec_pre ();

  unexec (SSDATA (filename), !NILP (symfile) ? SSDATA (symfile) : 0);

  alloc_unexec_post ();

  gflags = old_gflags;

# ifdef WINDOWSNT
  Vlibrary_cache = Qnil;
# endif

  Vpurify_flag = tem;

  return unbind_to (count, Qnil);
}

#endif

\f
#if HAVE_SETLOCALE
/* Recover from setlocale (LC_ALL, "").  */
void
fixup_locale (void)
{
  /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
     so that numbers are read and printed properly for Emacs Lisp.  */
  setlocale (LC_NUMERIC, "C");
}

/* Set system locale CATEGORY, with previous locale *PLOCALE, to
   DESIRED_LOCALE.  */
static void
synchronize_locale (int category, Lisp_Object *plocale, Lisp_Object desired_locale)
{
  if (! EQ (*plocale, desired_locale))
    {
      *plocale = desired_locale;
      char const *locale_string
	= STRINGP (desired_locale) ? SSDATA (desired_locale) : "";
# ifdef WINDOWSNT
      /* Changing categories like LC_TIME usually requires specifying
	 an encoding suitable for the new locale, but MS-Windows's
	 'setlocale' will only switch the encoding when LC_ALL is
	 specified.  So we ignore CATEGORY, use LC_ALL instead, and
	 then restore LC_NUMERIC to "C", so reading and printing
	 numbers is unaffected.  */
      setlocale (LC_ALL, locale_string);
      fixup_locale ();
# else	/* !WINDOWSNT */
      setlocale (category, locale_string);
# endif	/* !WINDOWSNT */
    }
}

static Lisp_Object Vprevious_system_time_locale;

/* Set system time locale to match Vsystem_time_locale, if possible.  */
void
synchronize_system_time_locale (void)
{
  synchronize_locale (LC_TIME, &Vprevious_system_time_locale,
		      Vsystem_time_locale);
}

# ifdef LC_MESSAGES
static Lisp_Object Vprevious_system_messages_locale;
# endif

/* Set system messages locale to match Vsystem_messages_locale, if
   possible.  */
void
synchronize_system_messages_locale (void)
{
# ifdef LC_MESSAGES
  synchronize_locale (LC_MESSAGES, &Vprevious_system_messages_locale,
		      Vsystem_messages_locale);
# endif
}
#endif /* HAVE_SETLOCALE */

/* Return a diagnostic string for ERROR_NUMBER, in the wording
   and encoding appropriate for the current locale.  */
char *
emacs_strerror (int error_number)
{
  synchronize_system_messages_locale ();
  return strerror (error_number);
}
\f

Lisp_Object
decode_env_path (const char *evarname, const char *defalt, bool empty)
{
  const char *path, *p;
  Lisp_Object lpath, element, tem;
  /* Default is to use "." for empty path elements.
     But if argument EMPTY is true, use nil instead.  */
  Lisp_Object empty_element = empty ? Qnil : build_string (".");
#ifdef WINDOWSNT
  bool defaulted = 0;
  static const char *emacs_dir_env = "%emacs_dir%/";
  const size_t emacs_dir_len = strlen (emacs_dir_env);
  const char *edir = egetenv ("emacs_dir");
  char emacs_dir[MAX_UTF8_PATH];

  /* egetenv looks in process-environment, which holds the variables
     in their original system-locale encoding.  We need emacs_dir to
     be in UTF-8.  */
  if (edir)
    filename_from_ansi (edir, emacs_dir);
#endif

  /* It's okay to use getenv here, because this function is only used
     to initialize variables when Emacs starts up, and isn't called
     after that.  */
  if (evarname != 0)
    path = getenv (evarname);
  else
    path = 0;
  if (!path)
    {
      path = defalt;
#ifdef WINDOWSNT
      defaulted = 1;
#endif
    }
#ifdef DOS_NT
  /* Ensure values from the environment use the proper directory separator.  */
  if (path)
    {
      char *path_copy;

#ifdef WINDOWSNT
      char *path_utf8, *q, *d;
      int cnv_result;

      /* Convert each element of PATH to UTF-8.  */
      p = path_copy = alloca (strlen (path) + 1);
      strcpy (path_copy, path);
      d = path_utf8 = alloca (4 * strlen (path) + 1);
      *d = '\0';
      do {
	q = _mbschr (p, SEPCHAR);
	if (q)
	  *q = '\0';
	cnv_result = filename_from_ansi (p, d);
	if (q)
	  {
	    *q++ = SEPCHAR;
	    p = q;
	    /* If conversion of this PATH elements fails, make sure
	       destination pointer will stay put, thus effectively
	       ignoring the offending element.  */
	    if (cnv_result == 0)
	      {
		d += strlen (d);
		*d++ = SEPCHAR;
	      }
	  }
	else if (cnv_result != 0 && d > path_utf8)
	  d[-1] = '\0';	/* remove last semi-colon and NUL-terminate PATH */
      } while (q);
      path_copy = path_utf8;
#else  /* MSDOS */
      path_copy = alloca (strlen (path) + 1);
      strcpy (path_copy, path);
#endif
      dostounix_filename (path_copy);
      path = path_copy;
    }
#endif
  lpath = Qnil;
  while (1)
    {
      p = strchr (path, SEPCHAR);
      if (!p)
	p = path + strlen (path);
      element = ((p - path) ? make_unibyte_string (path, p - path)
		 : empty_element);
      if (! NILP (element))
        {
#ifdef WINDOWSNT
          /* Relative file names in the default path are interpreted as
             being relative to $emacs_dir.  */
          if (edir && defaulted
              && strncmp (path, emacs_dir_env, emacs_dir_len) == 0)
            element = Fexpand_file_name (Fsubstring
                                         (element,
                                          make_fixnum (emacs_dir_len),
                                          Qnil),
                                         build_unibyte_string (emacs_dir));
#endif

          /* Add /: to the front of the name
             if it would otherwise be treated as magic.  */
          tem = Ffind_file_name_handler (element, Qt);

          /* However, if the handler says "I'm safe",
             don't bother adding /:.  */
          if (SYMBOLP (tem))
            {
              Lisp_Object prop;
              prop = Fget (tem, intern ("safe-magic"));
              if (! NILP (prop))
                tem = Qnil;
            }

          if (! NILP (tem))
	    {
	      AUTO_STRING (slash_colon, "/:");
	      element = concat2 (slash_colon, element);
	    }
        } /* !NILP (element) */

      lpath = Fcons (element, lpath);
      if (*p)
	path = p + 1;
      else
	break;
    }
  return Fnreverse (lpath);
}

DEFUN ("daemonp", Fdaemonp, Sdaemonp, 0, 0, 0,
       doc: /* Return non-nil if the current emacs process is a daemon.
If the daemon was given a name argument, return that name. */)
  (void)
{
  if (IS_DAEMON)
    if (daemon_name)
      return build_string (daemon_name);
    else
      return Qt;
  else
    return Qnil;
}

DEFUN ("daemon-initialized", Fdaemon_initialized, Sdaemon_initialized, 0, 0, 0,
       doc: /* Mark the Emacs daemon as being initialized.
This finishes the daemonization process by doing the other half of detaching
from the parent process and its tty file descriptors.  */)
  (void)
{
  bool err = 0;

  if (!IS_DAEMON)
    error ("This function can only be called if emacs is run as a daemon");

  if (!DAEMON_RUNNING)
    error ("The daemon has already been initialized");

  if (NILP (Vafter_init_time))
    error ("This function can only be called after loading the init files");
#ifndef WINDOWSNT

  if (daemon_type == 1)
    {
#ifdef HAVE_LIBSYSTEMD
      sd_notify(0, "READY=1");
#endif /* HAVE_LIBSYSTEMD */
    }

  if (daemon_type == 2)
    {
      int nfd;

      /* Get rid of stdin, stdout and stderr.  */
      nfd = emacs_open ("/dev/null", O_RDWR, 0);
      err |= nfd < 0;
      err |= dup2 (nfd, STDIN_FILENO) < 0;
      err |= dup2 (nfd, STDOUT_FILENO) < 0;
      err |= dup2 (nfd, STDERR_FILENO) < 0;
      err |= emacs_close (nfd) != 0;

      /* Closing the pipe will notify the parent that it can exit.
         FIXME: In case some other process inherited the pipe, closing it here
         won't notify the parent because it's still open elsewhere, so we
         additionally send a byte, just to make sure the parent really exits.
         Instead, we should probably close the pipe in start-process and
         call-process to make sure the pipe is never inherited by
         subprocesses.  */
      err |= write (daemon_pipe[1], "\n", 1) < 0;
      err |= emacs_close (daemon_pipe[1]) != 0;
    }

  /* Set it to an invalid value so we know we've already run this function.  */
  daemon_type = -1;

#else  /* WINDOWSNT */
  /* Signal the waiting emacsclient process.  */
  err |= SetEvent (w32_daemon_event) == 0;
  err |= CloseHandle (w32_daemon_event) == 0;
  /* Set it to an invalid value so we know we've already run this function.  */
  w32_daemon_event = INVALID_HANDLE_VALUE;
#endif

  if (err)
    error ("I/O error during daemon initialization");
  return Qt;
}



void
syms_of_emacs (void)
{
  DEFSYM (Qfile_name_handler_alist, "file-name-handler-alist");
  DEFSYM (Qrisky_local_variable, "risky-local-variable");
  DEFSYM (Qkill_emacs, "kill-emacs");
  DEFSYM (Qkill_emacs_hook, "kill-emacs-hook");

#ifdef HAVE_UNEXEC
  defsubr (&Sdump_emacs);
#endif

  defsubr (&Skill_emacs);

  defsubr (&Sinvocation_name);
  defsubr (&Sinvocation_directory);
  defsubr (&Sdaemonp);
  defsubr (&Sdaemon_initialized);

  DEFVAR_LISP ("command-line-args", Vcommand_line_args,
	       doc: /* Args passed by shell to Emacs, as a list of strings.
Many arguments are deleted from the list as they are processed.  */);

  DEFVAR_LISP ("system-type", Vsystem_type,
	       doc: /* The value is a symbol indicating the type of operating system you are using.
Special values:
  `gnu'          compiled for a GNU Hurd system.
  `gnu/linux'    compiled for a GNU/Linux system.
  `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
  `darwin'       compiled for Darwin (GNU-Darwin, macOS, ...).
  `ms-dos'       compiled as an MS-DOS application.
  `windows-nt'   compiled as a native W32 application.
  `cygwin'       compiled using the Cygwin library.
Anything else (in Emacs 26, the possibilities are: aix, berkeley-unix,
hpux, usg-unix-v) indicates some sort of Unix system.  */);
  Vsystem_type = intern_c_string (SYSTEM_TYPE);
  /* See configure.ac for the possible SYSTEM_TYPEs.  */

  DEFVAR_LISP ("system-configuration", Vsystem_configuration,
	       doc: /* Value is string indicating configuration Emacs was built for.  */);
  Vsystem_configuration = build_string (EMACS_CONFIGURATION);

  DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options,
	       doc: /* String containing the configuration options Emacs was built with.  */);
  Vsystem_configuration_options = build_string (EMACS_CONFIG_OPTIONS);

  DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features,
	       doc: /* String listing some of the main features this Emacs was compiled with.
An element of the form \"FOO\" generally means that HAVE_FOO was
defined during the build.

This is mainly intended for diagnostic purposes in bug reports.
Don't rely on it for testing whether a feature you want to use is available.  */);
  Vsystem_configuration_features = build_string (EMACS_CONFIG_FEATURES);

  DEFVAR_BOOL ("noninteractive", noninteractive1,
               doc: /* Non-nil means Emacs is running without interactive terminal.  */);

  DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook,
	       doc: /* Hook run when `kill-emacs' is called.
Since `kill-emacs' may be invoked when the terminal is disconnected (or
in other similar situations), functions placed on this hook should not
expect to be able to interact with the user.  To ask for confirmation,
see `kill-emacs-query-functions' instead.

Before Emacs 24.1, the hook was not run in batch mode, i.e., if
`noninteractive' was non-nil.  */);
  Vkill_emacs_hook = Qnil;

  DEFVAR_LISP ("path-separator", Vpath_separator,
	       doc: /* String containing the character that separates directories in
search paths, such as PATH and other similar environment variables.  */);
  {
    char c = SEPCHAR;
    Vpath_separator = make_string (&c, 1);
  }

  DEFVAR_LISP ("invocation-name", Vinvocation_name,
	       doc: /* The program name that was used to run Emacs.
Any directory names are omitted.  */);

  DEFVAR_LISP ("invocation-directory", Vinvocation_directory,
	       doc: /* The directory in which the Emacs executable was found, to run it.
The value is nil if that directory's name is not known.  */);

  DEFVAR_LISP ("installation-directory", Vinstallation_directory,
	       doc: /* A directory within which to look for the `lib-src' and `etc' directories.
In an installed Emacs, this is normally nil.  It is non-nil if
both `lib-src' (on MS-DOS, `info') and `etc' directories are found
within the variable `invocation-directory' or its parent.  For example,
this is the case when running an uninstalled Emacs executable from its
build directory.  */);
  Vinstallation_directory = Qnil;

  DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale,
	       doc: /* System locale for messages.  */);
  Vsystem_messages_locale = Qnil;
#ifdef LC_MESSAGES
  Vprevious_system_messages_locale = Qnil;
  staticpro (&Vprevious_system_messages_locale);
#endif

  DEFVAR_LISP ("system-time-locale", Vsystem_time_locale,
	       doc: /* System locale for time.  */);
  Vsystem_time_locale = Qnil;
  Vprevious_system_time_locale = Qnil;
  staticpro (&Vprevious_system_time_locale);

  DEFVAR_LISP ("before-init-time", Vbefore_init_time,
	       doc: /* Value of `current-time' before Emacs begins initialization.  */);
  Vbefore_init_time = Qnil;

  DEFVAR_LISP ("after-init-time", Vafter_init_time,
	       doc: /* Value of `current-time' after loading the init files.
This is nil during initialization.  */);
  Vafter_init_time = Qnil;

  DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources,
	       doc: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used.  */);
  inhibit_x_resources = 0;

  DEFVAR_LISP ("emacs-copyright", Vemacs_copyright,
	       doc: /* Short copyright string for this version of Emacs.  */);
  Vemacs_copyright = build_string (emacs_copyright);

  DEFVAR_LISP ("emacs-version", Vemacs_version,
	       doc: /* Version numbers of this version of Emacs.
This has the form: MAJOR.MINOR[.MICRO], where MAJOR/MINOR/MICRO are integers.
MICRO is only present in unreleased development versions,
and is not especially meaningful.  Prior to Emacs 26.1, an extra final
component .BUILD is present.  This is now stored separately in
`emacs-build-number'.  */);
  Vemacs_version = build_string (emacs_version);

  DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address,
	       doc: /* Address of mailing list for GNU Emacs bugs.  */);
  Vreport_emacs_bug_address = build_string (emacs_bugreport);

  DEFVAR_LISP ("dump-mode", Vdump_mode,
               doc: /* Non-nil when Emacs is dumping itself.  */);

  DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist,
    doc: /* Alist of dynamic libraries vs external files implementing them.
Each element is a list (LIBRARY FILE...), where the car is a symbol
representing a supported external library, and the rest are strings giving
alternate filenames for that library.

Emacs tries to load the library from the files in the order they appear on
the list; if none is loaded, the running session of Emacs won't have access
to that library.

Note that image types `pbm' and `xbm' do not need entries in this variable
because they do not depend on external libraries and are always available.

Also note that this is not a generic facility for accessing external
libraries; only those already known by Emacs will be loaded.  */);
  Vdynamic_library_alist = Qnil;
  Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable, Qt);

#ifdef WINDOWSNT
  Vlibrary_cache = Qnil;
  staticpro (&Vlibrary_cache);
#endif
}

debug log:

solving 0e3bf03ca9 ...
found 0e3bf03ca9 in https://yhetil.org/emacs-devel/87zhaxjpea.fsf@yahoo.com/
found ea9c4cd79d in https://git.savannah.gnu.org/cgit/emacs.git
preparing index
index prepared:
100644 ea9c4cd79dc348ef9b7c65d8cd4bd5cc0b403a01	src/emacs.c

applying [1/1] https://yhetil.org/emacs-devel/87zhaxjpea.fsf@yahoo.com/
diff --git a/src/emacs.c b/src/emacs.c
index ea9c4cd79d..0e3bf03ca9 100644

Checking patch src/emacs.c...
Applied patch src/emacs.c cleanly.

index at:
100644 0e3bf03ca9393de9337565cc2d0f40a4e96feb6b	src/emacs.c

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).