forked from JuliaLang/julia
-
Notifications
You must be signed in to change notification settings - Fork 0
/
init.c
1414 lines (1293 loc) · 48 KB
/
init.c
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
// This file is a part of Julia. License is MIT: http:https://julialang.org/license
/*
init.c
system initialization and global state
*/
#include "platform.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
#include <fcntl.h>
#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/resource.h>
#include <sys/mman.h>
#include <unistd.h>
#endif
#if defined(__APPLE__)
#include <AvailabilityMacros.h>
#define __need_ucontext64_t
#ifdef MAC_OS_X_VERSION_10_10
#include <sys/_types/_ucontext64.h>
#else
#include <machine/_structs.h>
#endif
#endif
#include <errno.h>
#include <signal.h>
#if !defined(_OS_WINDOWS_) || defined(_COMPILER_MINGW_)
#include <getopt.h>
#endif
#include "julia.h"
#include "julia_internal.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _MSC_VER
DLLEXPORT char * dirname(char *);
#else
#include <libgen.h>
#endif
#ifdef _OS_WINDOWS_
#define WIN32_LEAN_AND_MEAN
// Copied from MINGW_FLOAT_H which may not be found due to a collision with the builtin gcc float.h
// eventually we can probably integrate this into OpenLibm.
#if defined(_COMPILER_MINGW_)
void __cdecl __MINGW_NOTHROW _fpreset (void);
void __cdecl __MINGW_NOTHROW fpreset (void);
#else
void __cdecl _fpreset (void);
void __cdecl fpreset (void);
#endif
#define _FPE_INVALID 0x81
#define _FPE_DENORMAL 0x82
#define _FPE_ZERODIVIDE 0x83
#define _FPE_OVERFLOW 0x84
#define _FPE_UNDERFLOW 0x85
#define _FPE_INEXACT 0x86
#define _FPE_UNEMULATED 0x87
#define _FPE_SQRTNEG 0x88
#define _FPE_STACKOVERFLOW 0x8a
#define _FPE_STACKUNDERFLOW 0x8b
#define _FPE_EXPLICITGEN 0x8c /* raise( SIGFPE ); */
#include <windows.h>
#include <dbghelp.h>
#include <io.h>
extern int needsSymRefreshModuleList;
extern BOOL (WINAPI *hSymRefreshModuleList)(HANDLE);
#endif
DLLEXPORT void jlbacktrace();
DLLEXPORT void gdbbacktrace();
DLLEXPORT void gdblookup(ptrint_t ip);
static const char system_image_path[256] = "\0" JL_SYSTEM_IMAGE_PATH;
jl_options_t jl_options = { 0, // quiet
NULL, // julia_home
NULL, // julia_bin
NULL, // eval
NULL, // print
NULL, // postboot
NULL, // load
&system_image_path[1], // image_file
NULL, // cpu_taget ("native", "core2", etc...)
0, // nprocs
NULL, // machinefile
0, // isinteractive
0, // color
JL_OPTIONS_HISTORYFILE_ON, // historyfile
0, // startupfile
JL_OPTIONS_COMPILE_DEFAULT, // compile_enabled
0, // code_coverage
0, // malloc_log
0, // opt_level
JL_OPTIONS_CHECK_BOUNDS_DEFAULT, // check_bounds
1, // depwarn
1, // can_inline
JL_OPTIONS_FAST_MATH_DEFAULT,
0, // worker
JL_OPTIONS_HANDLE_SIGNALS_ON,
#ifdef _OS_WINDOWS_
// TODO remove this when using LLVM 3.5+
JL_OPTIONS_USE_PRECOMPILED_NO,
#else
JL_OPTIONS_USE_PRECOMPILED_YES,
#endif
NULL, // bindto
NULL, // outputbc
NULL, // outputo
NULL, // outputji
};
int jl_boot_file_loaded = 0;
int exit_on_sigint = 0;
char *jl_stack_lo;
char *jl_stack_hi;
size_t jl_page_size;
static void jl_find_stack_bottom(void)
{
size_t stack_size;
#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
struct rlimit rl;
// When using memory sanitizer, increase stack size because msan bloats stack usage
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
const rlim_t kStackSize = 32 * 1024 * 1024; // 32MB stack
int result;
result = getrlimit(RLIMIT_STACK, &rl);
if (result == 0)
{
if (rl.rlim_cur < kStackSize)
{
rl.rlim_cur = kStackSize;
result = setrlimit(RLIMIT_STACK, &rl);
if (result != 0)
{
fprintf(stderr, "setrlimit returned result = %d\n", result);
}
}
}
#endif
#endif
getrlimit(RLIMIT_STACK, &rl);
stack_size = rl.rlim_cur;
#else
stack_size = 262144; // guess
#endif
jl_stack_hi = (char*)&stack_size;
jl_stack_lo = jl_stack_hi - stack_size;
}
// what to do on SIGINT
DLLEXPORT void jl_sigint_action(void)
{
if (exit_on_sigint) jl_exit(130); // 128+SIGINT
jl_throw(jl_interrupt_exception);
}
#ifdef _OS_WINDOWS_
static char *strsignal(int sig)
{
switch (sig) {
case SIGINT: return "SIGINT"; break;
case SIGILL: return "SIGILL"; break;
case SIGABRT_COMPAT: return "SIGABRT_COMPAT"; break;
case SIGFPE: return "SIGFPE"; break;
case SIGSEGV: return "SIGSEGV"; break;
case SIGTERM: return "SIGTERM"; break;
case SIGBREAK: return "SIGBREAK"; break;
case SIGABRT: return "SIGABRT"; break;
}
return "?";
}
void __cdecl crt_sig_handler(int sig, int num)
{
switch (sig) {
case SIGFPE:
fpreset();
signal(SIGFPE, (void (__cdecl *)(int))crt_sig_handler);
switch(num) {
case _FPE_INVALID:
case _FPE_OVERFLOW:
case _FPE_UNDERFLOW:
default:
jl_errorf("Unexpected FPE Error 0x%X", num);
break;
case _FPE_ZERODIVIDE:
jl_throw(jl_diverror_exception);
break;
}
break;
case SIGINT:
signal(SIGINT, (void (__cdecl *)(int))crt_sig_handler);
if (jl_defer_signal) {
jl_signal_pending = sig;
}
else {
jl_signal_pending = 0;
jl_sigint_action();
}
break;
default: // SIGSEGV, (SSIGTERM, IGILL)
ios_printf(ios_stderr,"\nsignal (%d): %s\n", sig, strsignal(sig));
bt_size = rec_backtrace(bt_data, MAX_BT_SIZE);
jlbacktrace();
gc_debug_print_status();
raise(sig);
}
}
#else
void fpe_handler(int arg)
{
(void)arg;
sigset_t sset;
sigemptyset(&sset);
sigaddset(&sset, SIGFPE);
sigprocmask(SIG_UNBLOCK, &sset, NULL);
jl_throw(jl_diverror_exception);
}
#endif
#ifndef _OS_WINDOWS_
static int is_addr_on_stack(void *addr)
{
#ifdef COPY_STACKS
return ((char*)addr > (char*)jl_stack_lo-3000000 &&
(char*)addr < (char*)jl_stack_hi);
#else
return ((char*)addr > (char*)jl_current_task->stack-8192 &&
(char*)addr < (char*)jl_current_task->stack+jl_current_task->ssize);
#endif
}
#ifndef SIGINFO
#define SIGINFO SIGUSR1
#endif
void sigdie_handler(int sig, siginfo_t *info, void *context)
{
if (sig != SIGINFO) {
sigset_t sset;
uv_tty_reset_mode();
sigfillset(&sset);
sigprocmask(SIG_UNBLOCK, &sset, NULL);
signal(sig, SIG_DFL);
}
jl_safe_printf("\nsignal (%d): %s\n", sig, strsignal(sig));
#ifdef __APPLE__
bt_size = rec_backtrace_ctx(bt_data, MAX_BT_SIZE, (bt_context_t)&((ucontext64_t*)context)->uc_mcontext64->__ss);
#else
bt_size = rec_backtrace_ctx(bt_data, MAX_BT_SIZE, (ucontext_t*)context);
#endif
jlbacktrace();
gc_debug_print_status();
if (sig != SIGSEGV &&
sig != SIGBUS &&
sig != SIGILL &&
sig != SIGINFO) {
raise(sig);
}
}
#endif
#if defined(__linux__) || defined(__FreeBSD__)
extern int in_jl_;
void segv_handler(int sig, siginfo_t *info, void *context)
{
sigset_t sset;
if (sig == SIGSEGV && (in_jl_ || is_addr_on_stack(info->si_addr))) { // stack overflow
sigemptyset(&sset);
sigaddset(&sset, SIGSEGV);
sigprocmask(SIG_UNBLOCK, &sset, NULL);
jl_throw(jl_stackovf_exception);
}
else if (info->si_code == SEGV_ACCERR) { // writing to read-only memory (e.g., mmap)
sigemptyset(&sset);
sigaddset(&sset, SIGSEGV);
sigprocmask(SIG_UNBLOCK, &sset, NULL);
jl_throw(jl_readonlymemory_exception);
}
#ifdef SEGV_EXCEPTION
else if (sig == SIGSEGV) {
sigemptyset(&sset);
sigaddset(&sset, SIGSEGV);
sigprocmask(SIG_UNBLOCK, &sset, NULL);
jl_throw(jl_segv_exception);
}
#else
else {
sigdie_handler(sig, info, context);
}
#endif
}
#endif
volatile sig_atomic_t jl_signal_pending = 0;
volatile sig_atomic_t jl_defer_signal = 0;
#ifdef _OS_WINDOWS_
BOOL (*pSetThreadStackGuarantee)(PULONG);
void restore_signals(void)
{
SetConsoleCtrlHandler(NULL, 0); //turn on ctrl-c handler
}
void jl_throw_in_ctx(jl_value_t *excpt, CONTEXT *ctxThread, int bt)
{
assert(excpt != NULL);
#if defined(_CPU_X86_64_)
DWORD64 Rsp = (ctxThread->Rsp&(DWORD64)-16) - 8;
#elif defined(_CPU_X86_)
DWORD32 Esp = (ctxThread->Esp&(DWORD32)-16) - 4;
#else
#error WIN16 not supported :P
#endif
bt_size = bt ? rec_backtrace_ctx(bt_data, MAX_BT_SIZE, ctxThread) : 0;
jl_exception_in_transit = excpt;
#if defined(_CPU_X86_64_)
*(DWORD64*)Rsp = 0;
ctxThread->Rsp = Rsp;
ctxThread->Rip = (DWORD64)&jl_rethrow;
#elif defined(_CPU_X86_)
*(DWORD32*)Esp = 0;
ctxThread->Esp = Esp;
ctxThread->Eip = (DWORD)&jl_rethrow;
#endif
}
volatile HANDLE hMainThread = NULL;
static BOOL WINAPI sigint_handler(DWORD wsig) //This needs winapi types to guarantee __stdcall
{
int sig;
//windows signals use different numbers from unix (raise)
switch(wsig) {
case CTRL_C_EVENT: sig = SIGINT; break;
//case CTRL_BREAK_EVENT: sig = SIGTERM; break;
// etc.
default: sig = SIGTERM; break;
}
if (jl_defer_signal) {
jl_signal_pending = sig;
}
else {
jl_signal_pending = 0;
if (exit_on_sigint) jl_exit(130);
if ((DWORD)-1 == SuspendThread(hMainThread)) {
//error
jl_safe_printf("error: SuspendThread failed\n");
return 0;
}
CONTEXT ctxThread;
memset(&ctxThread,0,sizeof(CONTEXT));
ctxThread.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER;
if (!GetThreadContext(hMainThread, &ctxThread)) {
//error
jl_safe_printf("error: GetThreadContext failed\n");
return 0;
}
jl_throw_in_ctx(jl_interrupt_exception, &ctxThread, 1);
ctxThread.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER;
if (!SetThreadContext(hMainThread,&ctxThread)) {
jl_safe_printf("error: SetThreadContext failed\n");
//error
return 0;
}
if ((DWORD)-1 == ResumeThread(hMainThread)) {
jl_safe_printf("error: ResumeThread failed\n");
//error
return 0;
}
}
return 1;
}
static LONG WINAPI _exception_handler(struct _EXCEPTION_POINTERS *ExceptionInfo, int in_ctx)
{
if (ExceptionInfo->ExceptionRecord->ExceptionFlags == 0) {
switch (ExceptionInfo->ExceptionRecord->ExceptionCode) {
case EXCEPTION_INT_DIVIDE_BY_ZERO:
fpreset();
jl_throw_in_ctx(jl_diverror_exception, ExceptionInfo->ContextRecord,in_ctx);
return EXCEPTION_CONTINUE_EXECUTION;
case EXCEPTION_STACK_OVERFLOW:
jl_throw_in_ctx(jl_stackovf_exception, ExceptionInfo->ContextRecord,in_ctx&&pSetThreadStackGuarantee);
return EXCEPTION_CONTINUE_EXECUTION;
case EXCEPTION_ACCESS_VIOLATION:
if (ExceptionInfo->ExceptionRecord->ExceptionInformation[0] == 1) { // writing to read-only memory (e.g. mmap)
jl_throw_in_ctx(jl_readonlymemory_exception, ExceptionInfo->ContextRecord,in_ctx);
return EXCEPTION_CONTINUE_EXECUTION;
}
}
jl_safe_printf("\nPlease submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.\nException: ");
switch (ExceptionInfo->ExceptionRecord->ExceptionCode) {
case EXCEPTION_ACCESS_VIOLATION:
jl_safe_printf("EXCEPTION_ACCESS_VIOLATION"); break;
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
jl_safe_printf("EXCEPTION_ARRAY_BOUNDS_EXCEEDED"); break;
case EXCEPTION_BREAKPOINT:
jl_safe_printf("EXCEPTION_BREAKPOINT"); break;
case EXCEPTION_DATATYPE_MISALIGNMENT:
jl_safe_printf("EXCEPTION_DATATYPE_MISALIGNMENT"); break;
case EXCEPTION_FLT_DENORMAL_OPERAND:
jl_safe_printf("EXCEPTION_FLT_DENORMAL_OPERAND"); break;
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
jl_safe_printf("EXCEPTION_FLT_DIVIDE_BY_ZERO"); break;
case EXCEPTION_FLT_INEXACT_RESULT:
jl_safe_printf("EXCEPTION_FLT_INEXACT_RESULT"); break;
case EXCEPTION_FLT_INVALID_OPERATION:
jl_safe_printf("EXCEPTION_FLT_INVALID_OPERATION"); break;
case EXCEPTION_FLT_OVERFLOW:
jl_safe_printf("EXCEPTION_FLT_OVERFLOW"); break;
case EXCEPTION_FLT_STACK_CHECK:
jl_safe_printf("EXCEPTION_FLT_STACK_CHECK"); break;
case EXCEPTION_FLT_UNDERFLOW:
jl_safe_printf("EXCEPTION_FLT_UNDERFLOW"); break;
case EXCEPTION_ILLEGAL_INSTRUCTION:
jl_safe_printf("EXCEPTION_ILLEGAL_INSTRUCTION"); break;
case EXCEPTION_IN_PAGE_ERROR:
jl_safe_printf("EXCEPTION_IN_PAGE_ERROR"); break;
case EXCEPTION_INT_DIVIDE_BY_ZERO:
jl_safe_printf("EXCEPTION_INT_DIVIDE_BY_ZERO"); break;
case EXCEPTION_INT_OVERFLOW:
jl_safe_printf("EXCEPTION_INT_OVERFLOW"); break;
case EXCEPTION_INVALID_DISPOSITION:
jl_safe_printf("EXCEPTION_INVALID_DISPOSITION"); break;
case EXCEPTION_NONCONTINUABLE_EXCEPTION:
jl_safe_printf("EXCEPTION_NONCONTINUABLE_EXCEPTION"); break;
case EXCEPTION_PRIV_INSTRUCTION:
jl_safe_printf("EXCEPTION_PRIV_INSTRUCTION"); break;
case EXCEPTION_SINGLE_STEP:
jl_safe_printf("EXCEPTION_SINGLE_STEP"); break;
case EXCEPTION_STACK_OVERFLOW:
jl_safe_printf("EXCEPTION_STACK_OVERFLOW"); break;
default:
jl_safe_printf("UNKNOWN"); break;
}
jl_safe_printf(" at 0x%Ix -- ", (size_t)ExceptionInfo->ExceptionRecord->ExceptionAddress);
gdblookup((ptrint_t)ExceptionInfo->ExceptionRecord->ExceptionAddress);
bt_size = rec_backtrace_ctx(bt_data, MAX_BT_SIZE, ExceptionInfo->ContextRecord);
jlbacktrace();
static int recursion = 0;
if (recursion++)
exit(1);
else
jl_exit(1);
}
return EXCEPTION_CONTINUE_SEARCH;
}
static LONG WINAPI exception_handler(struct _EXCEPTION_POINTERS *ExceptionInfo)
{
return _exception_handler(ExceptionInfo,1);
}
#if defined(_CPU_X86_64_)
EXCEPTION_DISPOSITION _seh_exception_handler(PEXCEPTION_RECORD ExceptionRecord, void *EstablisherFrame, PCONTEXT ContextRecord, void *DispatcherContext)
{
EXCEPTION_POINTERS ExceptionInfo;
ExceptionInfo.ExceptionRecord = ExceptionRecord;
ExceptionInfo.ContextRecord = ContextRecord;
EXCEPTION_DISPOSITION rval;
switch (_exception_handler(&ExceptionInfo,1)) {
case EXCEPTION_CONTINUE_EXECUTION:
rval = ExceptionContinueExecution; break;
case EXCEPTION_CONTINUE_SEARCH:
rval = ExceptionContinueSearch; break;
#ifndef _MSC_VER
case EXCEPTION_EXECUTE_HANDLER:
rval = ExceptionExecuteHandler; break;
#endif
}
return rval;
}
#endif
#else // #ifdef _OS_WINDOWS_
void restore_signals(void)
{
sigset_t sset;
sigemptyset(&sset);
sigprocmask(SIG_SETMASK, &sset, 0);
}
void sigint_handler(int sig, siginfo_t *info, void *context)
{
if (jl_defer_signal) {
jl_signal_pending = sig;
}
else {
jl_signal_pending = 0;
sigset_t sset;
sigemptyset(&sset);
sigaddset(&sset, SIGINT);
sigprocmask(SIG_UNBLOCK, &sset, NULL);
jl_sigint_action();
}
}
#endif
struct uv_shutdown_queue_item { uv_handle_t *h; struct uv_shutdown_queue_item *next; };
struct uv_shutdown_queue { struct uv_shutdown_queue_item *first; struct uv_shutdown_queue_item *last; };
static void jl_uv_exitcleanup_add(uv_handle_t *handle, struct uv_shutdown_queue *queue)
{
struct uv_shutdown_queue_item *item = (struct uv_shutdown_queue_item*)malloc(sizeof(struct uv_shutdown_queue_item));
item->h = handle;
item->next = NULL;
if (queue->last) queue->last->next = item;
if (!queue->first) queue->first = item;
queue->last = item;
}
static void jl_uv_exitcleanup_walk(uv_handle_t *handle, void *arg)
{
if (handle != (uv_handle_t*)JL_STDOUT && handle != (uv_handle_t*)JL_STDERR)
jl_uv_exitcleanup_add(handle, (struct uv_shutdown_queue*)arg);
}
void jl_write_coverage_data(void);
void jl_write_malloc_log(void);
static void julia_save(void);
static struct uv_shutdown_queue_item *next_shutdown_queue_item(struct uv_shutdown_queue_item *item)
{
struct uv_shutdown_queue_item *rv = item->next;
free(item);
return rv;
}
DLLEXPORT void jl_atexit_hook(int exitcode)
{
if (exitcode == 0) julia_save();
#if defined(GC_FINAL_STATS)
jl_print_gc_stats(JL_STDERR);
#endif
if (jl_options.code_coverage)
jl_write_coverage_data();
if (jl_options.malloc_log)
jl_write_malloc_log();
if (jl_base_module) {
jl_value_t *f = jl_get_global(jl_base_module, jl_symbol("_atexit"));
if (f!=NULL && jl_is_function(f)) {
JL_TRY {
jl_apply((jl_function_t*)f, NULL, 0);
}
JL_CATCH {
jl_printf(JL_STDERR, "\natexit hook threw an error: ");
jl_static_show(JL_STDERR, jl_exception_in_transit);
}
}
}
jl_gc_run_all_finalizers();
uv_loop_t *loop = jl_global_event_loop();
if (loop == NULL) {
return;
}
struct uv_shutdown_queue queue = {NULL, NULL};
uv_walk(loop, jl_uv_exitcleanup_walk, &queue);
// close stdout and stderr last, since we like being
// able to show stuff (incl. printf's)
if (JL_STDOUT != (void*) STDOUT_FILENO &&
((uv_handle_t*)JL_STDOUT)->type < UV_HANDLE_TYPE_MAX)
jl_uv_exitcleanup_add((uv_handle_t*)JL_STDOUT, &queue);
if (JL_STDERR != (void*) STDERR_FILENO &&
((uv_handle_t*)JL_STDERR)->type < UV_HANDLE_TYPE_MAX)
jl_uv_exitcleanup_add((uv_handle_t*)JL_STDERR, &queue);
//uv_unref((uv_handle_t*)JL_STDOUT);
//uv_unref((uv_handle_t*)JL_STDERR);
struct uv_shutdown_queue_item *item = queue.first;
while (item) {
JL_TRY {
while (item) {
uv_handle_t *handle = item->h;
if (handle->type != UV_FILE && uv_is_closing(handle)) {
item = next_shutdown_queue_item(item);
continue;
}
switch(handle->type) {
case UV_TTY:
case UV_UDP:
case UV_TCP:
case UV_NAMED_PIPE:
case UV_POLL:
case UV_TIMER:
case UV_ASYNC:
case UV_FS_EVENT:
case UV_FS_POLL:
case UV_IDLE:
case UV_PREPARE:
case UV_CHECK:
case UV_SIGNAL:
case UV_PROCESS:
case UV_FILE:
// These will be shutdown as appropriate by jl_close_uv
jl_close_uv(handle);
break;
case UV_HANDLE:
case UV_STREAM:
case UV_UNKNOWN_HANDLE:
case UV_HANDLE_TYPE_MAX:
case UV_RAW_FD:
case UV_RAW_HANDLE:
default:
assert(0);
}
item = next_shutdown_queue_item(item);
}
}
JL_CATCH {
//error handling -- continue cleanup, as much as possible
uv_unref(item->h);
jl_printf(JL_STDERR, "error during exit cleanup: close: ");
jl_static_show(JL_STDERR, jl_exception_in_transit);
item = next_shutdown_queue_item(item);
}
}
uv_run(loop,UV_RUN_DEFAULT); //let libuv spin until everything has finished closing
}
void jl_get_builtin_hooks(void);
DLLEXPORT uv_lib_t *jl_dl_handle;
uv_lib_t _jl_RTLD_DEFAULT_handle;
uv_lib_t *jl_RTLD_DEFAULT_handle=&_jl_RTLD_DEFAULT_handle;
#ifdef _OS_WINDOWS_
uv_lib_t _jl_ntdll_handle;
uv_lib_t _jl_exe_handle;
uv_lib_t _jl_kernel32_handle;
uv_lib_t _jl_crtdll_handle;
uv_lib_t _jl_winsock_handle;
DLLEXPORT uv_lib_t *jl_exe_handle=&_jl_exe_handle;
uv_lib_t *jl_ntdll_handle=&_jl_ntdll_handle;
uv_lib_t *jl_kernel32_handle=&_jl_kernel32_handle;
uv_lib_t *jl_crtdll_handle=&_jl_crtdll_handle;
uv_lib_t *jl_winsock_handle=&_jl_winsock_handle;
#endif
uv_loop_t *jl_io_loop;
void *init_stdio_handle(uv_file fd,int readable)
{
void *handle;
uv_handle_type type = uv_guess_handle(fd);
jl_uv_file_t *file;
#ifndef _OS_WINDOWS_
// Duplicate the file descriptor so we can later dup it over if we want to redirect
// STDIO without having to worry about closing the associated libuv object.
// On windows however, libuv objects remember streams by their HANDLE, so this is
// unnecessary.
fd = dup(fd);
#endif
//jl_printf(JL_STDOUT, "%d: %d -- %d\n", fd, type, 0);
switch(type) {
case UV_TTY:
handle = malloc(sizeof(uv_tty_t));
if (uv_tty_init(jl_io_loop,(uv_tty_t*)handle,fd,readable)) {
jl_errorf("Error initializing stdio in uv_tty_init (%d, %d)\n", fd, type);
}
((uv_tty_t*)handle)->data=0;
uv_tty_set_mode((uv_tty_t*)handle,0); //cooked stdio
break;
case UV_UNKNOWN_HANDLE:
// dup the descriptor with a new one pointing at the bit bucket ...
#if defined(_OS_WINDOWS_)
_dup2(_open("NUL", O_RDWR | O_BINARY, _S_IREAD | _S_IWRITE), fd);
#else
dup2(open("/dev/null", O_RDWR, S_IRUSR | S_IWUSR /* 0600 */ | S_IRGRP | S_IROTH /* 0644 */), fd);
#endif
// ...and continue on as in the UV_FILE case
case UV_FILE:
file = (jl_uv_file_t*)malloc(sizeof(jl_uv_file_t));
file->loop = jl_io_loop;
file->type = UV_FILE;
file->file = fd;
file->data = 0;
handle = file;
break;
case UV_NAMED_PIPE:
handle = malloc(sizeof(uv_pipe_t));
if (uv_pipe_init(jl_io_loop, (uv_pipe_t*)handle, (readable?UV_PIPE_READABLE:UV_PIPE_WRITABLE))) {
jl_errorf("Error initializing stdio in uv_pipe_init (%d, %d)\n", fd, type);
}
if (uv_pipe_open((uv_pipe_t*)handle,fd)) {
jl_errorf("Error initializing stdio in uv_pipe_open (%d, %d)\n", fd, type);
}
((uv_pipe_t*)handle)->data=0;
break;
case UV_TCP:
handle = malloc(sizeof(uv_tcp_t));
if (uv_tcp_init(jl_io_loop, (uv_tcp_t*)handle)) {
jl_errorf("Error initializing stdio in uv_tcp_init (%d, %d)\n", fd, type);
}
if (uv_tcp_open((uv_tcp_t*)handle,fd)) {
jl_errorf("Error initializing stdio in uv_tcp_open (%d, %d)\n", fd, type);
}
((uv_tcp_t*)handle)->data=0;
break;
case UV_UDP:
default:
jl_errorf("This type of handle for stdio is not yet supported (%d, %d)!\n", fd, type);
break;
}
return handle;
}
void init_stdio()
{ //order must be 2,1,0
JL_STDERR = (uv_stream_t*)init_stdio_handle(STDERR_FILENO,0);
JL_STDOUT = (uv_stream_t*)init_stdio_handle(STDOUT_FILENO,0);
JL_STDIN = (uv_stream_t*)init_stdio_handle(STDIN_FILENO,1);
jl_flush_cstdio();
}
#ifdef JL_USE_INTEL_JITEVENTS
char jl_using_intel_jitevents; // Non-zero if running under Intel VTune Amplifier
#endif
#if defined(JL_USE_INTEL_JITEVENTS) && defined(__linux__)
unsigned sig_stack_size = SIGSTKSZ;
#elif defined(_OS_WINDOWS_)
#define sig_stack_size 131072 // 128k
#else
#define sig_stack_size SIGSTKSZ
#endif
#ifndef _OS_WINDOWS_
static void *signal_stack;
#endif
#ifdef _OS_DARWIN_
#include <mach/mach_traps.h>
#include <mach/task.h>
#include <mach/mig_errors.h>
static mach_port_t segv_port = 0;
extern boolean_t exc_server(mach_msg_header_t *, mach_msg_header_t *);
void *mach_segv_listener(void *arg)
{
(void)arg;
while (1) {
int ret = mach_msg_server(exc_server,2048,segv_port,MACH_MSG_TIMEOUT_NONE);
jl_safe_printf("mach_msg_server: %s\n", mach_error_string(ret));
jl_exit(128+SIGSEGV);
}
}
#ifdef SEGV_EXCEPTION
void darwin_segv_handler(unw_context_t *uc)
{
bt_size = rec_backtrace_ctx(bt_data, MAX_BT_SIZE, uc);
jl_exception_in_transit = jl_segv_exception;
jl_rethrow();
}
#endif
void darwin_stack_overflow_handler(unw_context_t *uc)
{
bt_size = rec_backtrace_ctx(bt_data, MAX_BT_SIZE, uc);
jl_exception_in_transit = jl_stackovf_exception;
jl_rethrow();
}
void darwin_accerr_handler(unw_context_t *uc)
{
bt_size = rec_backtrace_ctx(bt_data, MAX_BT_SIZE, uc);
jl_exception_in_transit = jl_readonlymemory_exception;
jl_rethrow();
}
#define HANDLE_MACH_ERROR(msg, retval) \
if (retval!=KERN_SUCCESS) { mach_error(msg ":", (retval)); jl_exit(1); }
#ifdef LIBOSXUNWIND
extern kern_return_t profiler_segv_handler(mach_port_t,mach_port_t,mach_port_t,exception_type_t,exception_data_t,mach_msg_type_number_t);
extern volatile mach_port_t mach_profiler_thread;
#endif
enum x86_trap_flags {
USER_MODE = 0x4,
WRITE_FAULT = 0x2,
PAGE_PRESENT = 0x1
};
//exc_server uses dlsym to find symbol
DLLEXPORT
kern_return_t catch_exception_raise(mach_port_t exception_port,
mach_port_t thread,
mach_port_t task,
exception_type_t exception,
exception_data_t code,
mach_msg_type_number_t code_count)
{
unsigned int count = MACHINE_THREAD_STATE_COUNT;
unsigned int exc_count = X86_EXCEPTION_STATE64_COUNT;
x86_thread_state64_t state, old_state;
x86_exception_state64_t exc_state;
kern_return_t ret;
//memset(&state,0,sizeof(x86_thread_state64_t));
//memset(&exc_state,0,sizeof(x86_exception_state64_t));
#ifdef LIBOSXUNWIND
if (thread == mach_profiler_thread) {
return profiler_segv_handler(exception_port,thread,task,exception,code,code_count);
}
#endif
ret = thread_get_state(thread,x86_EXCEPTION_STATE64,(thread_state_t)&exc_state,&exc_count);
HANDLE_MACH_ERROR("thread_get_state(1)",ret);
uint64_t fault_addr = exc_state.__faultvaddr;
#ifdef SEGV_EXCEPTION
if (1) {
#else
if (msync((void*)(fault_addr & ~(jl_page_size - 1)), 1, MS_ASYNC) == 0) { // check if this was a valid address
#endif
ret = thread_get_state(thread,x86_THREAD_STATE64,(thread_state_t)&state,&count);
HANDLE_MACH_ERROR("thread_get_state(2)",ret);
old_state = state;
// memset(&state,0,sizeof(x86_thread_state64_t));
// Setup libunwind information
state.__rsp = (uint64_t)signal_stack + sig_stack_size;
state.__rsp -= sizeof(unw_context_t);
state.__rsp &= -16;
unw_context_t *uc = (unw_context_t*)state.__rsp;
state.__rsp -= 512;
// This is for alignment. In particular note that the sizeof(void*) is necessary
// since it would usually specify the return address (i.e., we are aligning the call
// frame to a 16 byte boundary as required by the abi, but the stack pointer
// to point to the byte beyond that. Not doing this leads to funny behavior on
// the first access to an external function will fail due to stack misalignment
state.__rsp &= -16;
state.__rsp -= sizeof(void*);
memset(uc,0,sizeof(unw_context_t));
memcpy(uc,&old_state,sizeof(x86_thread_state64_t));
state.__rdi = (uint64_t)uc;
if (is_addr_on_stack((void*)fault_addr))
state.__rip = (uint64_t)darwin_stack_overflow_handler;
#ifdef SEGV_EXCEPTION
else if (msync((void*)(fault_addr & ~(jl_page_size - 1)), 1, MS_ASYNC) != 0)
state.__rip = (uint64_t)darwin_segv_handler;
#endif
else
state.__rip = (uint64_t)darwin_accerr_handler;
state.__rbp = state.__rsp;
ret = thread_set_state(thread,x86_THREAD_STATE64,(thread_state_t)&state,count);
HANDLE_MACH_ERROR("thread_set_state",ret);
return KERN_SUCCESS;
}
else {
ret = thread_get_state(thread,x86_THREAD_STATE64,(thread_state_t)&state,&count);
HANDLE_MACH_ERROR("thread_get_state(3)",ret);
jl_safe_printf("\nsignal (%d): %s\n", SIGSEGV, strsignal(SIGSEGV));
bt_size = rec_backtrace_ctx(bt_data, MAX_BT_SIZE, (unw_context_t*)&state);
jlbacktrace();
return KERN_INVALID_ARGUMENT;
}
}
#endif
int isabspath(const char *in)
{
#ifdef _OS_WINDOWS_
char c0 = in[0];
if (c0 == '/' || c0 == '\\') {
return 1; // absolute path relative to %CD% (current drive), or UNC
}
else {
int s = strlen(in);
if (s > 2) {
char c1 = in[1];
char c2 = in[2];
if (c1 == ':' && (c2 == '/' || c2 == '\\')) return 1; // absolute path
}
}
#else
if (in[0] == '/') return 1; // absolute path
#endif
return 0; // relative path
}
static char *abspath(const char *in)
{ // compute an absolute path location, so that chdir doesn't change the file reference
#ifndef _OS_WINDOWS_
char *out = realpath(in, NULL);
if (!out) {
if (in[0] == PATHSEPSTRING[0]) {
out = strdup(in);
}
else {
size_t path_size = PATH_MAX;
size_t len = strlen(in);
char *path = (char*)malloc(PATH_MAX);
if (uv_cwd(path, &path_size)) {
jl_error("fatal error: unexpected error while retrieving current working directory\n");
}
if (path_size + len + 1 >= PATH_MAX) {
jl_error("fatal error: current working directory path too long\n");
}
path[path_size-1] = PATHSEPSTRING[0];
memcpy(path+path_size, in, len+1);
out = strdup(path);
free(path);
}
}
#else
DWORD n = GetFullPathName(in, 0, NULL, NULL);
if (n <= 0) {
jl_error("fatal error: jl_options.image_file path too long or GetFullPathName failed\n");
}
char *out = (char*)malloc(n);
DWORD m = GetFullPathName(in, n, out, NULL);
if (n != m + 1) {
jl_error("fatal error: jl_options.image_file path too long or GetFullPathName failed\n");
}
#endif
return out;
}
static void jl_resolve_sysimg_location(JL_IMAGE_SEARCH rel)
{ // this function resolves the paths in jl_options to absolute file locations as needed
// and it replaces the pointers to `julia_home`, `julia_bin`, `image_file`, and output file paths
// it may fail, print an error, and exit(1) if any of these paths are longer than PATH_MAX
//
// note: if you care about lost memory, you should call the appropriate `free()` function
// on the original pointer for each `char*` you've inserted into `jl_options`, after
// calling `julia_init()`
char *free_path = (char*)malloc(PATH_MAX);
size_t path_size = PATH_MAX;
if (uv_exepath(free_path, &path_size)) {
jl_error("fatal error: unexpected error while retrieving exepath\n");
}
if (path_size >= PATH_MAX) {
jl_error("fatal error: jl_options.julia_bin path too long\n");
}
jl_options.julia_bin = strdup(free_path);
if (!jl_options.julia_home) {
jl_options.julia_home = getenv("JULIA_HOME");
if (!jl_options.julia_home) {
jl_options.julia_home = dirname(free_path);
}
}
if (jl_options.julia_home)
jl_options.julia_home = abspath(jl_options.julia_home);
free(free_path);
free_path = NULL;
if (jl_options.image_file) {
if (rel == JL_IMAGE_JULIA_HOME && !isabspath(jl_options.image_file)) {
// build time path, relative to JULIA_HOME
free_path = (char*)malloc(PATH_MAX);
int n = snprintf(free_path, PATH_MAX, "%s" PATHSEPSTRING "%s",
jl_options.julia_home, jl_options.image_file);
if (n >= PATH_MAX || n < 0) {
jl_error("fatal error: jl_options.image_file path too long\n");
}
jl_options.image_file = free_path;
}
if (jl_options.image_file)
jl_options.image_file = abspath(jl_options.image_file);
if (free_path) {
free(free_path);
free_path = NULL;
}
}
if (jl_options.outputo)
jl_options.outputo = abspath(jl_options.outputo);
if (jl_options.outputji)
jl_options.outputji = abspath(jl_options.outputji);
if (jl_options.outputbc)
jl_options.outputbc = abspath(jl_options.outputbc);
if (jl_options.machinefile)
jl_options.machinefile = abspath(jl_options.machinefile);