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
| | /* Fully extensible Emacs, running on Unix, intended for GNU.
Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2015 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 <http://www.gnu.org/licenses/>. */
#define INLINE EXTERN_INLINE
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/file.h>
#include <unistd.h>
#include <close-stream.h>
#define MAIN_PROGRAM
#include "lisp.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>
#endif
#ifdef HAVE_WINDOW_SYSTEM
#include TERM_HEADER
#endif /* HAVE_WINDOW_SYSTEM */
#include "commands.h"
#include "intervals.h"
#include "character.h"
#include "buffer.h"
#include "window.h"
#include "systty.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 "regex.h"
#include "syntax.h"
#include "sysselect.h"
#include "systime.h"
#include "gnutls.h"
#if (defined PROFILING \
&& (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
# include <sys/gmon.h>
extern void moncontrol (int mode);
#endif
#ifdef HAVE_SETLOCALE
#include <locale.h>
#endif
#ifdef HAVE_SETRLIMIT
#include <sys/time.h>
#include <sys/resource.h>
#endif
#ifdef HAVE_PERSONALITY_LINUX32
#include <sys/personality.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
/* Set after Emacs has started up the first time.
Prevents reinitialization of the Lisp world and keymaps
on subsequent starts. */
bool initialized;
/* Set to true if this instance of Emacs might dump. */
bool might_dump;
#ifdef DARWIN_OS
extern void unexec_init_emacs_zone (void);
#endif
#ifdef DOUG_LEA_MALLOC
/* Preserves a pointer to the memory allocated that copies that
static data inside glibc's malloc. */
static void *malloc_state_ptr;
/* From glibc, a routine that returns a copy of the malloc internal state. */
extern void *malloc_get_state (void);
/* From glibc, a routine that overwrites the malloc internal state. */
extern int malloc_set_state (void *);
/* True if the MALLOC_CHECK_ environment variable was set while
dumping. Used to work around a bug in glibc's malloc. */
static bool malloc_using_checking;
#elif defined HAVE_PTHREAD && !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
extern void malloc_enable_thread (void);
#endif
/* 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
/* An address near the bottom of the stack.
Tells GC how to save a copy of the stack. */
char *stack_bottom;
#if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
/* The address where the heap starts (from the first sbrk (0) call). */
static void *my_heap_start;
#endif
#ifdef GNU_LINUX
/* The gap between BSS end and heap start as far as we can tell. */
static uprintmax_t heap_bss_diff;
#endif
/* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
not a simple fork.
On Cocoa, CoreFoundation lib fails in forked process:
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;
/* Name for the server started by the daemon.*/
static char *daemon_name;
#ifndef WINDOWSNT
/* Pipe used to send exit notification to the daemon parent at
startup. */
int daemon_pipe[2];
#else
HANDLE w32_daemon_event;
#endif
/* Save argv and argc. */
char **initial_argv;
int initial_argc;
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 start a server in the background\n\
--debug-init enable Emacs Lisp debugger for init file\n\
--display, -d DISPLAY use X server DISPLAY\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 using find-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 using find-file\n\
--find-file FILE visit FILE using find-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 using find-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 autrelease pool, for memory management. */
static void *ns_pool;
#endif
#if !HAVE_SETLOCALE
static char *
setlocale (int cat, char const *locale)
{
return 0;
}
#endif
/* Report a fatal error due to signal SIG, output a backtrace of at
most BACKTRACE_LIMIT lines, and exit. */
_Noreturn void
terminate_due_to_signal (int sig, int backtrace_limit)
{
signal (sig, SIG_DFL);
/* 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_number (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 *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_number (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/"))
dir = Fexpand_file_name (build_string ("../.."), dir);
#else /* !WINDOWSNT */
#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 DOUG_LEA_MALLOC
/* malloc can be invoked even before main (e.g. by the dynamic
linker), so the dumped malloc state must be restored as early as
possible using this special hook. */
static void
malloc_initialize_hook (void)
{
if (initialized)
{
if (!malloc_using_checking)
/* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
ignored if the heap to be restored was constructed without
malloc checking. Can't use unsetenv, since that calls malloc. */
{
char **p;
for (p = environ; p && *p; p++)
if (strncmp (*p, "MALLOC_CHECK_=", 14) == 0)
{
do
*p = p[1];
while (*++p);
break;
}
}
malloc_set_state (malloc_state_ptr);
#ifndef XMALLOC_OVERRUN_CHECK
free (malloc_state_ptr);
#endif
}
else
{
if (my_heap_start == 0)
my_heap_start = sbrk (0);
malloc_using_checking = getenv ("MALLOC_CHECK_") != NULL;
}
}
void (*__malloc_initialize_hook) (void) EXTERNALLY_VISIBLE = malloc_initialize_hook;
#endif /* DOUG_LEA_MALLOC */
/* Close standard output and standard error, reporting any write
errors as best we can. This is intended for use with atexit. */
static void
close_output_streams (void)
{
if (close_stream (stdout) != 0)
{
emacs_perror ("Write error to standard output");
_exit (EXIT_FAILURE);
}
if (close_stream (stderr) != 0)
_exit (EXIT_FAILURE);
}
/* ARGSUSED */
int
main (int argc, char **argv)
{
#if GC_MARK_STACK
Lisp_Object dummy;
#endif
char stack_bottom_variable;
bool do_initial_setlocale;
bool dumping;
int skip_args = 0;
#ifdef HAVE_SETRLIMIT
struct rlimit rlim;
#endif
bool no_loadup = 0;
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 *original_pwd = 0;
#if GC_MARK_STACK
stack_base = &dummy;
#endif
#ifndef CANNOT_DUMP
might_dump = !initialized;
#endif
#ifdef GNU_LINUX
if (!initialized)
{
if (my_heap_start == 0)
my_heap_start = sbrk (0);
heap_bss_diff = (char *)my_heap_start - max (my_endbss, my_endbss_static);
}
#endif
#if defined WINDOWSNT || defined HAVE_NTGUI
/* Set global variables used to detect Windows version. Do this as
early as possible. (unexw32.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 ();
#endif
#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. */
#ifdef DARWIN_OS
if (!initialized)
unexec_init_emacs_zone ();
#endif
atexit (close_output_streams);
sort_args (argc, argv);
argc = 0;
while (argv[argc]) argc++;
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))
{
fprintf (stderr, "Invalid value of 'emacs-version'\n");
exit (1);
}
if (!STRINGP (tem2))
{
fprintf (stderr, "Invalid value of 'emacs-copyright'\n");
exit (1);
}
else
{
version = SSDATA (tem);
copyright = SSDATA (tem2);
}
}
else
{
version = emacs_version;
copyright = emacs_copyright;
}
printf ("%s %s\n", PACKAGE_NAME, version);
printf ("%s\n", copyright);
printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME);
printf ("You may redistribute copies of %s\n", PACKAGE_NAME);
printf ("under the terms of the GNU General Public License.\n");
printf ("For more information about these matters, ");
printf ("see the file named COPYING.\n");
exit (0);
}
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
original_pwd = get_current_dir_name ();
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);
}
}
dumping = !initialized && (strcmp (argv[argc - 1], "dump") == 0
|| strcmp (argv[argc - 1], "bootstrap") == 0);
#ifdef HAVE_PERSONALITY_LINUX32
if (dumping && ! getenv ("EMACS_HEAP_EXEC"))
{
/* Set this so we only do this once. */
xputenv ("EMACS_HEAP_EXEC=true");
/* A flag to turn off address randomization which is introduced
in linux kernel shipped with fedora core 4 */
#define ADD_NO_RANDOMIZE 0x0040000
personality (PER_LINUX32 | ADD_NO_RANDOMIZE);
#undef ADD_NO_RANDOMIZE
execvp (argv[0], argv);
/* If the exec fails, try to dump anyway. */
emacs_perror (argv[0]);
}
#endif /* HAVE_PERSONALITY_LINUX32 */
#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). */
if (1
#ifndef CANNOT_DUMP
&& (!noninteractive || initialized)
#endif
&& !getrlimit (RLIMIT_STACK, &rlim))
{
long newlim;
/* Approximate the amount regex.c needs per unit of re_max_failures. */
int ratio = 20 * sizeof (char *);
/* Then add 33% to cover the size of the smaller stacks that regex.c
successively allocates and discards, on its way to the maximum. */
ratio += ratio / 3;
/* Add in some extra to cover
what we're likely to use for other reasons. */
newlim = re_max_failures * ratio + 200000;
#ifdef __NetBSD__
/* NetBSD (at least NetBSD 1.2G and former) has a bug in its
stack allocation routine for new process that the allocation
fails if stack limit is not on page boundary. So, round up the
new limit to page boundary. */
newlim = (newlim + getpagesize () - 1) / getpagesize () * getpagesize ();
#endif
if (newlim > rlim.rlim_max)
{
newlim = rlim.rlim_max;
/* Don't let regex.c overflow the stack we have. */
re_max_failures = (newlim - 200000) / ratio;
}
if (rlim.rlim_cur < newlim)
rlim.rlim_cur = newlim;
setrlimit (RLIMIT_STACK, &rlim);
}
#endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
/* Record (approximately) where the stack begins. */
stack_bottom = &stack_bottom_variable;
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 (fileno (stdin));
fflush (stdout);
SET_BINARY (fileno (stdout));
#endif /* MSDOS */
/* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
The build procedure uses this while dumping, 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");
do_initial_setlocale = ! lc_all || strcmp (lc_all, "C");
}
/* Set locale now, so that initial error messages are localized properly.
fixup_locale must wait until later, since it builds strings. */
if (do_initial_setlocale)
setlocale (LC_ALL, "");
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))
{
int result;
emacs_close (0);
emacs_close (1);
result = emacs_open (term, O_RDWR, 0);
if (result < 0 || fcntl (0, F_DUPFD_CLOEXEC, 1) < 0)
{
char *errstring = strerror (errno);
fprintf (stderr, "%s: %s: %s\n", argv[0], term, errstring);
exit (1);
}
if (! isatty (0))
{
fprintf (stderr, "%s: %s: not a tty\n", argv[0], term);
exit (1);
}
fprintf (stderr, "Using %s\n", term);
#ifdef HAVE_WINDOW_SYSTEM
inhibit_window_system = 1; /* -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);
}
#ifndef WINDOWSNT
/* Make sure IS_DAEMON starts up as false. */
daemon_pipe[1] = 0;
#else
w32_daemon_event = NULL;
#endif
if (argmatch (argv, argc, "-daemon", "--daemon", 5, NULL, &skip_args)
|| argmatch (argv, argc, "-daemon", "--daemon", 5, &dname_arg, &skip_args))
{
#ifndef DOS_NT
pid_t f;
/* Start as a 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)
{
fprintf (stderr, "Cannot pipe!\n");
exit (1);
}
#ifndef DAEMON_MUST_EXEC
#ifdef USE_GTK
fprintf (stderr, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\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");
#endif /* USE_GTK */
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)
{
fprintf (stderr, "Error reading status from child\n");
exit (1);
}
else if (retval == 0)
{
fprintf (stderr, "Error: server did not start correctly\n");
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,
"--daemon=\n%d,%d\n%s", daemon_pipe[0],
daemon_pipe[1], dname_arg ? dname_arg : "");
if (! (0 <= fdStrlen && fdStrlen < sizeof fdStr))
{
fprintf (stderr, "daemon: child name too long\n");
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 || !strchr (dname_arg, '\n')
|| strlen (dname_arg) < 1 || strlen (dname_arg) > 70)
{
fprintf (stderr, "emacs daemon: daemon name absent or too long\n");
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 ();
#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 */
fprintf (stderr, "This platform does not support the -daemon flag.\n");
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
# ifndef CANNOT_DUMP
/* 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 || initialized)
# endif
malloc_enable_thread ();
#endif
init_signals (dumping);
noninteractive1 = noninteractive;
/* Perform basic initializations (not merely interning symbols). */
if (!initialized)
{
init_alloc_once ();
init_obarray ();
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
CANNOT_DUMP is defined. */
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 hashtables. */
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_window_once (); /* Init the window system. */
#ifdef HAVE_WINDOW_SYSTEM
init_fringe_once (); /* Swap bitmaps if necessary. */
#endif /* HAVE_WINDOW_SYSTEM */
}
init_alloc ();
if (do_initial_setlocale)
{
fixup_locale ();
Vsystem_messages_locale = Vprevious_system_messages_locale;
Vsystem_time_locale = Vprevious_system_time_locale;
}
init_eval ();
init_atimer ();
running_asynch_code = 0;
init_random ();
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);
#ifdef HAVE_NS
ns_pool = ns_alloc_autorelease_pool ();
#ifdef NS_IMPL_GNUSTEP
/* GNUstep stupidly resets our locale settings after we made them. */
fixup_locale ();
#endif
if (!noninteractive)
{
#ifdef NS_IMPL_COCOA
/* Started from GUI? */
/* FIXME: Do the right thing if getenv returns NULL, or if
chdir fails. */
if (! inhibit_window_system && ! isatty (0) && ! ch_to_dir)
chdir (getenv ("HOME"));
if (skip_args < argc)
{
if (!strncmp (argv[skip_args], "-psn", 4))
{
skip_args += 1;
if (! ch_to_dir) chdir (getenv ("HOME"));
}
else if (skip_args+1 < argc && !strncmp (argv[skip_args+1], "-psn", 4))
{
skip_args += 2;
if (! ch_to_dir) chdir (getenv ("HOME"));
}
}
#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_GFILENOTIFY
globals_of_gfilenotify ();
#endif
#ifdef WINDOWSNT
globals_of_w32 ();
#ifdef HAVE_W32NOTIFY
globals_of_w32notify ();
#endif
/* Initialize environment from registry settings. */
init_environment (argv);
init_ntproc (dumping); /* must precede init_editfns. */
#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 (! dumping)
set_initial_environment ();
/* 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 (initialized);
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_frame ();
syms_of_syntax ();
syms_of_terminal ();
syms_of_term ();
syms_of_undo ();
#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_xsettings ();
#ifdef HAVE_X_SM
syms_of_xsmfns ();
#endif
#ifdef HAVE_X11
syms_of_xselect ();
#endif
#endif /* HAVE_X_WINDOWS */
#ifdef HAVE_LIBXML2
syms_of_xml ();
#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 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 */
syms_of_gnutls ();
#ifdef HAVE_GFILENOTIFY
syms_of_gfilenotify ();
#endif /* HAVE_GFILENOTIFY */
#ifdef HAVE_INOTIFY
syms_of_inotify ();
#endif /* HAVE_INOTIFY */
#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_profiler ();
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. Also,
it sets Voperating_system_release, which init_process_emacs uses. */
init_editfns ();
/* These two call putenv. */
#ifdef HAVE_DBUS
init_dbusbind ();
#endif
#ifdef USE_GTK
init_xterm ();
#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 ();
init_keyboard (); /* This too must precede init_sys_modes. */
if (!noninteractive)
init_display (); /* Determine terminal type. Calls init_sys_modes. */
#if HAVE_W32NOTIFY
else
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. */
#if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
#ifdef PROFILING
if (initialized)
{
#ifdef __MINGW32__
extern unsigned char etext asm ("etext");
#else
extern char etext;
#endif
atexit (_mcleanup);
monstartup ((uintptr_t) __executable_start, (uintptr_t) &etext);
}
else
moncontrol (0);
#endif
#endif
initialized = 1;
/* Enter editor command loop. This never returns. */
Frecursive_edit ();
/* NOTREACHED */
return 0;
}
\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 },
{ "-help", "--help", 90, 0 },
{ "-nl", "--no-loadup", 70, 0 },
{ "-nsl", "--no-site-lisp", 65, 0 },
/* -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 },
#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];
}
/* FIXME When match < 0, shouldn't there be some error,
or at least indication to the user that there was a
problem? */
}
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)
{
struct gcpro gcpro1;
int exit_code;
GCPRO1 (arg);
/* Fsignal calls emacs_abort () if it sees that waiting_for_input is
set. */
waiting_for_input = 0;
run_hook (Qkill_emacs_hook);
UNGCPRO;
#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 (INTEGERP (arg))
exit_code = (XINT (arg) < 0
? XINT (arg) | INT_MIN
: XINT (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 pgrp = getpgrp ();
pid_t tpgrp = tcgetpgrp (0);
if ((tpgrp != -1) && tpgrp == pgrp)
{
reset_all_sys_modes ();
if (sig && sig != SIGTERM)
{
static char const format[] = "Fatal error %d: ";
char buf[sizeof format - 2 + INT_STRLEN_BOUND (int)];
int buflen = sprintf (buf, format, sig);
char const *sig_desc = safe_strsignal (sig);
emacs_write (STDERR_FILENO, buf, buflen);
emacs_write (STDERR_FILENO, sig_desc, strlen (sig_desc));
}
}
}
#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
#ifndef CANNOT_DUMP
#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 (!might_dump)
error ("Emacs can be dumped only once");
#ifdef GNU_LINUX
/* 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");
fprintf (stderr, "Warning: Your system has a gap between BSS and the\n");
fprintf (stderr, "heap (%"pMu" bytes). This usually means that exec-shield\n",
heap_bss_diff);
fprintf (stderr, "or something similar is in effect. The dump may\n");
fprintf (stderr, "fail because of this. See the section about\n");
fprintf (stderr, "exec-shield in etc/PROBLEMS for more information.\n");
fprintf (stderr, "**************************************************\n");
}
#endif /* GNU_LINUX */
/* 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;
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
#ifndef 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 /* not WINDOWSNT */
#endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
#ifdef DOUG_LEA_MALLOC
malloc_state_ptr = malloc_get_state ();
#endif
unexec (SSDATA (filename), !NILP (symfile) ? SSDATA (symfile) : 0);
#ifdef DOUG_LEA_MALLOC
free (malloc_state_ptr);
#endif
#ifdef WINDOWSNT
Vlibrary_cache = Qnil;
#endif
#ifdef HAVE_WINDOW_SYSTEM
reset_image_types ();
#endif
Vpurify_flag = tem;
return unbind_to (count, Qnil);
}
#endif /* not CANNOT_DUMP */
\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))
{
#ifdef WINDOWSNT
/* Changing categories like LC_TIME usually requires to specify
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 and use LC_ALL instead. */
category = LC_ALL;
#endif
*plocale = desired_locale;
setlocale (category, (STRINGP (desired_locale)
? SSDATA (desired_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);
}
/* 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 */
\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 null-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_number (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
int nfd;
/* Get rid of stdin, stdout and stderr. */
nfd = emacs_open ("/dev/null", O_RDWR, 0);
err |= nfd < 0;
err |= dup2 (nfd, 0) < 0;
err |= dup2 (nfd, 1) < 0;
err |= dup2 (nfd, 2) < 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_pipe[1] = -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");
#ifndef CANNOT_DUMP
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, Mac OS X, ...).
`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 24.1, the possibilities are: aix, berkeley-unix,
hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
Vsystem_type = intern_c_string (SYSTEM_TYPE);
/* See configure.ac (and config.nt) 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;
DEFVAR_LISP ("previous-system-messages-locale",
Vprevious_system_messages_locale,
doc: /* Most recently used system locale for messages. */);
Vprevious_system_messages_locale = Qnil;
DEFVAR_LISP ("system-time-locale", Vsystem_time_locale,
doc: /* System locale for time. */);
Vsystem_time_locale = Qnil;
DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale,
doc: /* Most recently used system locale for time. */);
Vprevious_system_time_locale = Qnil;
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. */);
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 ("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
}
|