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2009-03-11 Zoltan Varga <vargaz@gmail.com>
[mono-debugger.git] / mono / mini / mini.c
blob6e5cc6608c5ce6a6f3d4b46bec37b6251e9d13fc
1 /*
2 * mini.c: The new Mono code generator.
3 *
4 * Author:
5 * Paolo Molaro (lupus@ximian.com)
6 * Dietmar Maurer (dietmar@ximian.com)
7 *
8 * (C) 2002 Ximian, Inc.
9 */
10
11 #include <config.h>
12 #include <signal.h>
13 #ifdef HAVE_ALLOCA_H
14 #include <alloca.h>
15 #endif
16 #ifdef HAVE_UNISTD_H
17 #include <unistd.h>
18 #endif
19 #include <math.h>
20 #ifdef HAVE_SYS_TIME_H
21 #include <sys/time.h>
22 #endif
23
24 #ifdef HAVE_VALGRIND_MEMCHECK_H
25 #include <valgrind/memcheck.h>
26 #endif
27
28 #include <mono/metadata/assembly.h>
29 #include <mono/metadata/loader.h>
30 #include <mono/metadata/tabledefs.h>
31 #include <mono/metadata/class.h>
32 #include <mono/metadata/object.h>
33 #include <mono/metadata/tokentype.h>
34 #include <mono/metadata/tabledefs.h>
35 #include <mono/metadata/threads.h>
36 #include <mono/metadata/appdomain.h>
37 #include <mono/metadata/debug-helpers.h>
38 #include <mono/io-layer/io-layer.h>
39 #include "mono/metadata/profiler.h"
40 #include <mono/metadata/profiler-private.h>
41 #include <mono/metadata/mono-config.h>
42 #include <mono/metadata/environment.h>
43 #include <mono/metadata/mono-debug.h>
44 #include <mono/metadata/gc-internal.h>
45 #include <mono/metadata/threads-types.h>
46 #include <mono/metadata/verify.h>
47 #include <mono/metadata/verify-internals.h>
48 #include <mono/metadata/mempool-internals.h>
49 #include <mono/metadata/attach.h>
50 #include <mono/utils/mono-math.h>
51 #include <mono/utils/mono-compiler.h>
52 #include <mono/utils/mono-counters.h>
53 #include <mono/utils/mono-logger.h>
54 #include <mono/utils/mono-mmap.h>
55 #include <mono/utils/dtrace.h>
56
57 #include "mini.h"
58 #include <string.h>
59 #include <ctype.h>
60 #include "trace.h"
61 #include "version.h"
62
63 #include "jit-icalls.h"
64
65 #include "debug-mini.h"
66
67 static gpointer mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt);
68 static gpointer mono_jit_compile_method (MonoMethod *method);
69
70 /* helper methods signature */
71 /* FIXME: Make these static again */
72 MonoMethodSignature *helper_sig_class_init_trampoline = NULL;
73 MonoMethodSignature *helper_sig_domain_get = NULL;
74 MonoMethodSignature *helper_sig_generic_class_init_trampoline = NULL;
75 MonoMethodSignature *helper_sig_rgctx_lazy_fetch_trampoline = NULL;
76 MonoMethodSignature *helper_sig_monitor_enter_exit_trampoline = NULL;
77
78 static guint32 default_opt = 0;
79 static gboolean default_opt_set = FALSE;
80
81 guint32 mono_jit_tls_id = -1;
82
83 #ifdef HAVE_KW_THREAD
84 static __thread gpointer mono_jit_tls MONO_TLS_FAST;
85 #endif
86
87 MonoTraceSpec *mono_jit_trace_calls = NULL;
88 gboolean mono_break_on_exc = FALSE;
89 gboolean mono_compile_aot = FALSE;
90 /* If this is set, no code is generated dynamically, everything is taken from AOT files */
91 gboolean mono_aot_only = FALSE;
92 /* Whenever to use IMT */
93 #ifdef MONO_ARCH_HAVE_IMT
94 gboolean mono_use_imt = TRUE;
95 #else
96 gboolean mono_use_imt = FALSE;
97 #endif
98 MonoMethodDesc *mono_inject_async_exc_method = NULL;
99 int mono_inject_async_exc_pos;
100 MonoMethodDesc *mono_break_at_bb_method = NULL;
101 int mono_break_at_bb_bb_num;
102 gboolean mono_do_x86_stack_align = TRUE;
103 const char *mono_build_date;
104 gboolean mono_do_signal_chaining;
105
106 static int mini_verbose = 0;
107
108 #define mono_jit_lock() EnterCriticalSection (&jit_mutex)
109 #define mono_jit_unlock() LeaveCriticalSection (&jit_mutex)
110 static CRITICAL_SECTION jit_mutex;
111
112 static MonoCodeManager *global_codeman = NULL;
113
114 /* FIXME: Make this static again */
115 GHashTable *jit_icall_name_hash = NULL;
116
117 static MonoDebugOptions debug_options;
118
119 #ifdef VALGRIND_JIT_REGISTER_MAP
120 static int valgrind_register = 0;
121 #endif
122
123 /*
124 * Table written to by the debugger with a 1-based index into the
125 * mono_breakpoint_info table, which contains changes made to
126 * the JIT instructions by the debugger.
127 */
128 gssize
129 mono_breakpoint_info_index [MONO_BREAKPOINT_ARRAY_SIZE];
130
131 /* Whenever to check for pending exceptions in managed-to-native wrappers */
132 gboolean check_for_pending_exc = TRUE;
133
134 /* Whenever to disable passing/returning small valuetypes in registers for managed methods */
135 gboolean disable_vtypes_in_regs = FALSE;
136
137 gboolean mono_dont_free_global_codeman;
138
139 gboolean
140 mono_running_on_valgrind (void)
141 {
142 #ifdef HAVE_VALGRIND_MEMCHECK_H
143 if (RUNNING_ON_VALGRIND){
144 #ifdef VALGRIND_JIT_REGISTER_MAP
145 valgrind_register = TRUE;
146 #endif
147 return TRUE;
148 } else
149 return FALSE;
150 #else
151 return FALSE;
152 #endif
153 }
154
155 typedef struct {
156 void *ip;
157 MonoMethod *method;
158 } FindTrampUserData;
159
160 static void
161 find_tramp (gpointer key, gpointer value, gpointer user_data)
162 {
163 FindTrampUserData *ud = (FindTrampUserData*)user_data;
164
165 if (value == ud->ip)
166 ud->method = (MonoMethod*)key;
167 }
168
169 /* debug function */
170 G_GNUC_UNUSED static char*
171 get_method_from_ip (void *ip)
172 {
173 MonoJitInfo *ji;
174 char *method;
175 char *res;
176 MonoDomain *domain = mono_domain_get ();
177 MonoDebugSourceLocation *location;
178 FindTrampUserData user_data;
179
180 ji = mono_jit_info_table_find (domain, ip);
181 if (!ji) {
182 user_data.ip = ip;
183 user_data.method = NULL;
184 mono_domain_lock (domain);
185 g_hash_table_foreach (domain_jit_info (domain)->jit_trampoline_hash, find_tramp, &user_data);
186 mono_domain_unlock (domain);
187 if (user_data.method) {
188 char *mname = mono_method_full_name (user_data.method, TRUE);
189 res = g_strdup_printf ("<%p - JIT trampoline for %s>", ip, mname);
190 g_free (mname);
191 return res;
192 }
193 else
194 return NULL;
195 }
196 method = mono_method_full_name (ji->method, TRUE);
197 /* FIXME: unused ? */
198 location = mono_debug_lookup_source_location (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), domain);
199
200 res = g_strdup_printf (" %s + 0x%x (%p %p) [%p - %s]", method, (int)((char*)ip - (char*)ji->code_start), ji->code_start, (char*)ji->code_start + ji->code_size, domain, domain->friendly_name);
201
202 mono_debug_free_source_location (location);
203 g_free (method);
204
205 return res;
206 }
207
208 /**
209 * mono_pmip:
210 * @ip: an instruction pointer address
211 *
212 * This method is used from a debugger to get the name of the
213 * method at address @ip. This routine is typically invoked from
214 * a debugger like this:
215 *
216 * (gdb) print mono_pmip ($pc)
217 *
218 * Returns: the name of the method at address @ip.
219 */
220 G_GNUC_UNUSED char *
221 mono_pmip (void *ip)
222 {
223 return get_method_from_ip (ip);
224 }
225
226 /**
227 * mono_print_method_from_ip
228 * @ip: an instruction pointer address
229 *
230 * This method is used from a debugger to get the name of the
231 * method at address @ip.
232 *
233 * This prints the name of the method at address @ip in the standard
234 * output. Unlike mono_pmip which returns a string, this routine
235 * prints the value on the standard output.
236 */
237 void
238 mono_print_method_from_ip (void *ip)
239 {
240 MonoJitInfo *ji;
241 char *method;
242 MonoDebugSourceLocation *source;
243 MonoDomain *domain = mono_domain_get ();
244 FindTrampUserData user_data;
245
246 ji = mono_jit_info_table_find (domain, ip);
247 if (!ji) {
248 user_data.ip = ip;
249 user_data.method = NULL;
250 mono_domain_lock (domain);
251 g_hash_table_foreach (domain_jit_info (domain)->jit_trampoline_hash, find_tramp, &user_data);
252 mono_domain_unlock (domain);
253 if (user_data.method) {
254 char *mname = mono_method_full_name (user_data.method, TRUE);
255 printf ("IP %p is a JIT trampoline for %s\n", ip, mname);
256 g_free (mname);
257 }
258 else
259 g_print ("No method at %p\n", ip);
260 return;
261 }
262 method = mono_method_full_name (ji->method, TRUE);
263 source = mono_debug_lookup_source_location (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), domain);
264
265 g_print ("IP %p at offset 0x%x of method %s (%p %p)[domain %p - %s]\n", ip, (int)((char*)ip - (char*)ji->code_start), method, ji->code_start, (char*)ji->code_start + ji->code_size, domain, domain->friendly_name);
266
267 if (source)
268 g_print ("%s:%d\n", source->source_file, source->row);
269
270 mono_debug_free_source_location (source);
271 g_free (method);
272 }
273
274 /*
275 * mono_method_same_domain:
276 *
277 * Determine whenever two compiled methods are in the same domain, thus
278 * the address of the callee can be embedded in the caller.
279 */
280 gboolean mono_method_same_domain (MonoJitInfo *caller, MonoJitInfo *callee)
281 {
282 if (!caller || !callee)
283 return FALSE;
284
285 /*
286 * If the call was made from domain-neutral to domain-specific
287 * code, we can't patch the call site.
288 */
289 if (caller->domain_neutral && !callee->domain_neutral)
290 return FALSE;
291
292 if ((caller->method->klass == mono_defaults.appdomain_class) &&
293 (strstr (caller->method->name, "InvokeInDomain"))) {
294 /* The InvokeInDomain methods change the current appdomain */
295 return FALSE;
296 }
297
298 return TRUE;
299 }
300
301 /*
302 * mono_global_codeman_reserve:
303 *
304 * Allocate code memory from the global code manager.
305 */
306 void *mono_global_codeman_reserve (int size)
307 {
308 void *ptr;
309
310 if (mono_aot_only)
311 g_error ("Attempting to allocate from the global code manager while running with --aot-only.\n");
312
313 if (!global_codeman) {
314 /* This can happen during startup */
315 global_codeman = mono_code_manager_new ();
316 return mono_code_manager_reserve (global_codeman, size);
317 }
318 else {
319 mono_jit_lock ();
320 ptr = mono_code_manager_reserve (global_codeman, size);
321 mono_jit_unlock ();
322 return ptr;
323 }
324 }
325
326 /**
327 * mono_create_unwind_op:
328 *
329 * Create an unwind op with the given parameters.
330 */
331 MonoUnwindOp*
332 mono_create_unwind_op (int when, int tag, int reg, int val)
333 {
334 MonoUnwindOp *op = g_new0 (MonoUnwindOp, 1);
335
336 op->op = tag;
337 op->reg = reg;
338 op->val = val;
339 op->when = when;
340
341 return op;
342 }
343
344 /**
345 * mono_emit_unwind_op:
346 *
347 * Add an unwind op with the given parameters for the list of unwind ops stored in
348 * cfg->unwind_ops.
349 */
350 void
351 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
352 {
353 MonoUnwindOp *op = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
354
355 op->op = tag;
356 op->reg = reg;
357 op->val = val;
358 op->when = when;
359
360 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
361 }
362
363 MonoJumpInfoToken *
364 mono_jump_info_token_new2 (MonoMemPool *mp, MonoImage *image, guint32 token, MonoGenericContext *context)
365 {
366 MonoJumpInfoToken *res = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoToken));
367 res->image = image;
368 res->token = token;
369 res->has_context = context != NULL;
370 if (context)
371 memcpy (&res->context, context, sizeof (MonoGenericContext));
372
373 return res;
374 }
375
376 MonoJumpInfoToken *
377 mono_jump_info_token_new (MonoMemPool *mp, MonoImage *image, guint32 token)
378 {
379 return mono_jump_info_token_new2 (mp, image, token, NULL);
380 }
381
382 #define MONO_INIT_VARINFO(vi,id) do { \
383 (vi)->range.first_use.pos.bid = 0xffff; \
384 (vi)->reg = -1; \
385 (vi)->idx = (id); \
386 } while (0)
387
388 /**
389 * mono_unlink_bblock:
390 *
391 * Unlink two basic blocks.
392 */
393 void
394 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
395 {
396 int i, pos;
397 gboolean found;
398
399 found = FALSE;
400 for (i = 0; i < from->out_count; ++i) {
401 if (to == from->out_bb [i]) {
402 found = TRUE;
403 break;
404 }
405 }
406 if (found) {
407 pos = 0;
408 for (i = 0; i < from->out_count; ++i) {
409 if (from->out_bb [i] != to)
410 from->out_bb [pos ++] = from->out_bb [i];
411 }
412 g_assert (pos == from->out_count - 1);
413 from->out_count--;
414 }
415
416 found = FALSE;
417 for (i = 0; i < to->in_count; ++i) {
418 if (from == to->in_bb [i]) {
419 found = TRUE;
420 break;
421 }
422 }
423 if (found) {
424 pos = 0;
425 for (i = 0; i < to->in_count; ++i) {
426 if (to->in_bb [i] != from)
427 to->in_bb [pos ++] = to->in_bb [i];
428 }
429 g_assert (pos == to->in_count - 1);
430 to->in_count--;
431 }
432 }
433
434 /*
435 * mono_bblocks_linked:
436 *
437 * Return whenever BB1 and BB2 are linked in the CFG.
438 */
439 gboolean
440 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
441 {
442 int i;
443
444 for (i = 0; i < bb1->out_count; ++i) {
445 if (bb1->out_bb [i] == bb2)
446 return TRUE;
447 }
448
449 return FALSE;
450 }
451
452 MonoInst *
453 mono_find_spvar_for_region (MonoCompile *cfg, int region)
454 {
455 return g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
456 }
457
458 static MonoInst *
459 mono_find_exvar_for_offset (MonoCompile *cfg, int offset)
460 {
461 return g_hash_table_lookup (cfg->exvars, GINT_TO_POINTER (offset));
462 }
463
464 static void
465 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
466 {
467 int i;
468
469 array [*dfn] = start;
470 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
471 for (i = 0; i < start->out_count; ++i) {
472 if (start->out_bb [i]->dfn)
473 continue;
474 (*dfn)++;
475 start->out_bb [i]->dfn = *dfn;
476 start->out_bb [i]->df_parent = start;
477 array [*dfn] = start->out_bb [i];
478 df_visit (start->out_bb [i], dfn, array);
479 }
480 }
481
482 guint32
483 mono_reverse_branch_op (guint32 opcode)
484 {
485 static const int reverse_map [] = {
486 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
487 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
488 };
489 static const int reverse_fmap [] = {
490 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
491 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
492 };
493 static const int reverse_lmap [] = {
494 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
495 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
496 };
497 static const int reverse_imap [] = {
498 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
499 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
500 };
501
502 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
503 opcode = reverse_map [opcode - CEE_BEQ];
504 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
505 opcode = reverse_fmap [opcode - OP_FBEQ];
506 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
507 opcode = reverse_lmap [opcode - OP_LBEQ];
508 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
509 opcode = reverse_imap [opcode - OP_IBEQ];
510 } else
511 g_assert_not_reached ();
512
513 return opcode;
514 }
515
516 guint
517 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
518 {
519 if (type->byref)
520 return OP_STORE_MEMBASE_REG;
521
522 handle_enum:
523 switch (type->type) {
524 case MONO_TYPE_I1:
525 case MONO_TYPE_U1:
526 case MONO_TYPE_BOOLEAN:
527 return OP_STOREI1_MEMBASE_REG;
528 case MONO_TYPE_I2:
529 case MONO_TYPE_U2:
530 case MONO_TYPE_CHAR:
531 return OP_STOREI2_MEMBASE_REG;
532 case MONO_TYPE_I4:
533 case MONO_TYPE_U4:
534 return OP_STOREI4_MEMBASE_REG;
535 case MONO_TYPE_I:
536 case MONO_TYPE_U:
537 case MONO_TYPE_PTR:
538 case MONO_TYPE_FNPTR:
539 return OP_STORE_MEMBASE_REG;
540 case MONO_TYPE_CLASS:
541 case MONO_TYPE_STRING:
542 case MONO_TYPE_OBJECT:
543 case MONO_TYPE_SZARRAY:
544 case MONO_TYPE_ARRAY:
545 return OP_STORE_MEMBASE_REG;
546 case MONO_TYPE_I8:
547 case MONO_TYPE_U8:
548 return OP_STOREI8_MEMBASE_REG;
549 case MONO_TYPE_R4:
550 return OP_STORER4_MEMBASE_REG;
551 case MONO_TYPE_R8:
552 return OP_STORER8_MEMBASE_REG;
553 case MONO_TYPE_VALUETYPE:
554 if (type->data.klass->enumtype) {
555 type = mono_class_enum_basetype (type->data.klass);
556 goto handle_enum;
557 }
558 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
559 return OP_STOREX_MEMBASE;
560 return OP_STOREV_MEMBASE;
561 case MONO_TYPE_TYPEDBYREF:
562 return OP_STOREV_MEMBASE;
563 case MONO_TYPE_GENERICINST:
564 type = &type->data.generic_class->container_class->byval_arg;
565 goto handle_enum;
566 case MONO_TYPE_VAR:
567 case MONO_TYPE_MVAR:
568 /* FIXME: all the arguments must be references for now,
569 * later look inside cfg and see if the arg num is
570 * really a reference
571 */
572 g_assert (cfg->generic_sharing_context);
573 return OP_STORE_MEMBASE_REG;
574 default:
575 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
576 }
577 return -1;
578 }
579
580 guint
581 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
582 {
583 if (type->byref)
584 return OP_LOAD_MEMBASE;
585
586 switch (mono_type_get_underlying_type (type)->type) {
587 case MONO_TYPE_I1:
588 return OP_LOADI1_MEMBASE;
589 case MONO_TYPE_U1:
590 case MONO_TYPE_BOOLEAN:
591 return OP_LOADU1_MEMBASE;
592 case MONO_TYPE_I2:
593 return OP_LOADI2_MEMBASE;
594 case MONO_TYPE_U2:
595 case MONO_TYPE_CHAR:
596 return OP_LOADU2_MEMBASE;
597 case MONO_TYPE_I4:
598 return OP_LOADI4_MEMBASE;
599 case MONO_TYPE_U4:
600 return OP_LOADU4_MEMBASE;
601 case MONO_TYPE_I:
602 case MONO_TYPE_U:
603 case MONO_TYPE_PTR:
604 case MONO_TYPE_FNPTR:
605 return OP_LOAD_MEMBASE;
606 case MONO_TYPE_CLASS:
607 case MONO_TYPE_STRING:
608 case MONO_TYPE_OBJECT:
609 case MONO_TYPE_SZARRAY:
610 case MONO_TYPE_ARRAY:
611 return OP_LOAD_MEMBASE;
612 case MONO_TYPE_I8:
613 case MONO_TYPE_U8:
614 return OP_LOADI8_MEMBASE;
615 case MONO_TYPE_R4:
616 return OP_LOADR4_MEMBASE;
617 case MONO_TYPE_R8:
618 return OP_LOADR8_MEMBASE;
619 case MONO_TYPE_VALUETYPE:
620 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
621 return OP_LOADX_MEMBASE;
622 case MONO_TYPE_TYPEDBYREF:
623 return OP_LOADV_MEMBASE;
624 case MONO_TYPE_GENERICINST:
625 if (mono_type_generic_inst_is_valuetype (type))
626 return OP_LOADV_MEMBASE;
627 else
628 return OP_LOAD_MEMBASE;
629 break;
630 case MONO_TYPE_VAR:
631 case MONO_TYPE_MVAR:
632 /* FIXME: all the arguments must be references for now,
633 * later look inside cfg and see if the arg num is
634 * really a reference
635 */
636 g_assert (cfg->generic_sharing_context);
637 return OP_LOAD_MEMBASE;
638 default:
639 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
640 }
641 return -1;
642 }
643
644 static guint
645 mini_type_to_ldind (MonoCompile* cfg, MonoType *type)
646 {
647 if (cfg->generic_sharing_context && !type->byref) {
648 /* FIXME: all the arguments must be references for now,
649 * later look inside cfg and see if the arg num is
650 * really a reference
651 */
652 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
653 return CEE_LDIND_REF;
654 }
655 return mono_type_to_ldind (type);
656 }
657
658 guint
659 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
660 {
661 if (cfg->generic_sharing_context && !type->byref) {
662 /* FIXME: all the arguments must be references for now,
663 * later look inside cfg and see if the arg num is
664 * really a reference
665 */
666 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
667 return CEE_STIND_REF;
668 }
669 return mono_type_to_stind (type);
670 }
671
672 int
673 mono_op_imm_to_op (int opcode)
674 {
675 switch (opcode) {
676 case OP_ADD_IMM:
677 #if SIZEOF_REGISTER == 4
678 return OP_IADD;
679 #else
680 return OP_LADD;
681 #endif
682 case OP_IADD_IMM:
683 return OP_IADD;
684 case OP_LADD_IMM:
685 return OP_LADD;
686 case OP_ISUB_IMM:
687 return OP_ISUB;
688 case OP_LSUB_IMM:
689 return OP_LSUB;
690 case OP_IMUL_IMM:
691 return OP_IMUL;
692 case OP_AND_IMM:
693 #if SIZEOF_REGISTER == 4
694 return OP_IAND;
695 #else
696 return OP_LAND;
697 #endif
698 case OP_IAND_IMM:
699 return OP_IAND;
700 case OP_LAND_IMM:
701 return OP_LAND;
702 case OP_IOR_IMM:
703 return OP_IOR;
704 case OP_LOR_IMM:
705 return OP_LOR;
706 case OP_IXOR_IMM:
707 return OP_IXOR;
708 case OP_LXOR_IMM:
709 return OP_LXOR;
710 case OP_ISHL_IMM:
711 return OP_ISHL;
712 case OP_LSHL_IMM:
713 return OP_LSHL;
714 case OP_ISHR_IMM:
715 return OP_ISHR;
716 case OP_LSHR_IMM:
717 return OP_LSHR;
718 case OP_ISHR_UN_IMM:
719 return OP_ISHR_UN;
720 case OP_LSHR_UN_IMM:
721 return OP_LSHR_UN;
722 case OP_IDIV_IMM:
723 return OP_IDIV;
724 case OP_IDIV_UN_IMM:
725 return OP_IDIV_UN;
726 case OP_IREM_UN_IMM:
727 return OP_IREM_UN;
728 case OP_IREM_IMM:
729 return OP_IREM;
730 case OP_DIV_IMM:
731 #if SIZEOF_REGISTER == 4
732 return OP_IDIV;
733 #else
734 return OP_LDIV;
735 #endif
736 case OP_REM_IMM:
737 #if SIZEOF_REGISTER == 4
738 return OP_IREM;
739 #else
740 return OP_LREM;
741 #endif
742 case OP_ADDCC_IMM:
743 return OP_ADDCC;
744 case OP_ADC_IMM:
745 return OP_ADC;
746 case OP_SUBCC_IMM:
747 return OP_SUBCC;
748 case OP_SBB_IMM:
749 return OP_SBB;
750 case OP_IADC_IMM:
751 return OP_IADC;
752 case OP_ISBB_IMM:
753 return OP_ISBB;
754 case OP_COMPARE_IMM:
755 return OP_COMPARE;
756 case OP_ICOMPARE_IMM:
757 return OP_ICOMPARE;
758 case OP_LOCALLOC_IMM:
759 return OP_LOCALLOC;
760 default:
761 printf ("%s\n", mono_inst_name (opcode));
762 g_assert_not_reached ();
763 return -1;
764 }
765 }
766
767 /*
768 * mono_decompose_op_imm:
769 *
770 * Replace the OP_.._IMM INS with its non IMM variant.
771 */
772 void
773 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
774 {
775 MonoInst *temp;
776
777 MONO_INST_NEW (cfg, temp, OP_ICONST);
778 temp->inst_c0 = ins->inst_imm;
779 temp->dreg = mono_alloc_ireg (cfg);
780 mono_bblock_insert_before_ins (bb, ins, temp);
781 ins->opcode = mono_op_imm_to_op (ins->opcode);
782 if (ins->opcode == OP_LOCALLOC)
783 ins->sreg1 = temp->dreg;
784 else
785 ins->sreg2 = temp->dreg;
786
787 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
788 }
789
790 static void
791 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
792 {
793 if (vreg >= cfg->vreg_to_inst_len) {
794 MonoInst **tmp = cfg->vreg_to_inst;
795 int size = cfg->vreg_to_inst_len;
796
797 while (vreg >= cfg->vreg_to_inst_len)
798 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
799 cfg->vreg_to_inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
800 if (size)
801 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
802 }
803 cfg->vreg_to_inst [vreg] = inst;
804 }
805
806 #define mono_type_is_long(type) (!(type)->byref && ((mono_type_get_underlying_type (type)->type == MONO_TYPE_I8) || (mono_type_get_underlying_type (type)->type == MONO_TYPE_U8)))
807 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
808
809 #ifdef DISABLE_JIT
810
811 MonoInst*
812 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
813 {
814 return NULL;
815 }
816
817 #else
818
819 MonoInst*
820 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
821 {
822 MonoInst *inst;
823 int num = cfg->num_varinfo;
824 gboolean regpair;
825
826 if ((num + 1) >= cfg->varinfo_count) {
827 int orig_count = cfg->varinfo_count;
828 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 64;
829 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
830 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
831 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
832 }
833
834 mono_jit_stats.allocate_var++;
835
836 MONO_INST_NEW (cfg, inst, opcode);
837 inst->inst_c0 = num;
838 inst->inst_vtype = type;
839 inst->klass = mono_class_from_mono_type (type);
840 type_to_eval_stack_type (cfg, type, inst);
841 /* if set to 1 the variable is native */
842 inst->backend.is_pinvoke = 0;
843 inst->dreg = vreg;
844
845 cfg->varinfo [num] = inst;
846
847 MONO_INIT_VARINFO (&cfg->vars [num], num);
848 MONO_VARINFO (cfg, num)->vreg = vreg;
849
850 if (vreg != -1)
851 set_vreg_to_inst (cfg, vreg, inst);
852
853 #if SIZEOF_REGISTER == 4
854 #ifdef MONO_ARCH_SOFT_FLOAT
855 regpair = mono_type_is_long (type) || mono_type_is_float (type);
856 #else
857 regpair = mono_type_is_long (type);
858 #endif
859 #else
860 regpair = FALSE;
861 #endif
862
863 if (regpair) {
864 MonoInst *tree;
865
866 /*
867 * These two cannot be allocated using create_var_for_vreg since that would
868 * put it into the cfg->varinfo array, confusing many parts of the JIT.
869 */
870
871 /*
872 * Set flags to VOLATILE so SSA skips it.
873 */
874
875 if (cfg->verbose_level >= 4) {
876 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, inst->dreg + 1, inst->dreg + 2);
877 }
878
879 #ifdef MONO_ARCH_SOFT_FLOAT
880 if (cfg->opt & MONO_OPT_SSA) {
881 if (mono_type_is_float (type))
882 inst->flags = MONO_INST_VOLATILE;
883 }
884 #endif
885
886 /* Allocate a dummy MonoInst for the first vreg */
887 MONO_INST_NEW (cfg, tree, OP_LOCAL);
888 tree->dreg = inst->dreg + 1;
889 if (cfg->opt & MONO_OPT_SSA)
890 tree->flags = MONO_INST_VOLATILE;
891 tree->inst_c0 = num;
892 tree->type = STACK_I4;
893 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
894 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
895
896 set_vreg_to_inst (cfg, inst->dreg + 1, tree);
897
898 /* Allocate a dummy MonoInst for the second vreg */
899 MONO_INST_NEW (cfg, tree, OP_LOCAL);
900 tree->dreg = inst->dreg + 2;
901 if (cfg->opt & MONO_OPT_SSA)
902 tree->flags = MONO_INST_VOLATILE;
903 tree->inst_c0 = num;
904 tree->type = STACK_I4;
905 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
906 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
907
908 set_vreg_to_inst (cfg, inst->dreg + 2, tree);
909 }
910
911 cfg->num_varinfo++;
912 if (cfg->verbose_level > 2)
913 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
914 return inst;
915 }
916
917 MonoInst*
918 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
919 {
920 int dreg;
921
922 if (mono_type_is_long (type))
923 dreg = mono_alloc_dreg (cfg, STACK_I8);
924 #ifdef MONO_ARCH_SOFT_FLOAT
925 else if (mono_type_is_float (type))
926 dreg = mono_alloc_dreg (cfg, STACK_R8);
927 #endif
928 else
929 /* All the others are unified */
930 dreg = mono_alloc_preg (cfg);
931
932 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
933 }
934
935 /*
936 * Transform a MonoInst into a load from the variable of index var_index.
937 */
938 void
939 mono_compile_make_var_load (MonoCompile *cfg, MonoInst *dest, gssize var_index) {
940 memset (dest, 0, sizeof (MonoInst));
941 dest->ssa_op = MONO_SSA_LOAD;
942 dest->inst_i0 = cfg->varinfo [var_index];
943 dest->opcode = mini_type_to_ldind (cfg, dest->inst_i0->inst_vtype);
944 type_to_eval_stack_type (cfg, dest->inst_i0->inst_vtype, dest);
945 dest->klass = dest->inst_i0->klass;
946 }
947
948 #endif
949
950 static MonoType*
951 type_from_stack_type (MonoInst *ins) {
952 switch (ins->type) {
953 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
954 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
955 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
956 case STACK_R8: return &mono_defaults.double_class->byval_arg;
957 case STACK_MP:
958 /*
959 * this if used to be commented without any specific reason, but
960 * it breaks #80235 when commented
961 */
962 if (ins->klass)
963 return &ins->klass->this_arg;
964 else
965 return &mono_defaults.object_class->this_arg;
966 case STACK_OBJ:
967 /* ins->klass may not be set for ldnull.
968 * Also, if we have a boxed valuetype, we want an object lass,
969 * not the valuetype class
970 */
971 if (ins->klass && !ins->klass->valuetype)
972 return &ins->klass->byval_arg;
973 return &mono_defaults.object_class->byval_arg;
974 case STACK_VTYPE: return &ins->klass->byval_arg;
975 default:
976 g_error ("stack type %d to montype not handled\n", ins->type);
977 }
978 return NULL;
979 }
980
981 MonoType*
982 mono_type_from_stack_type (MonoInst *ins) {
983 return type_from_stack_type (ins);
984 }
985
986 /*
987 * mono_add_ins_to_end:
988 *
989 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
990 */
991 void
992 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
993 {
994 int opcode;
995
996 if (!bb->code) {
997 MONO_ADD_INS (bb, inst);
998 return;
999 }
1000
1001 switch (bb->last_ins->opcode) {
1002 case OP_BR:
1003 case OP_BR_REG:
1004 case CEE_BEQ:
1005 case CEE_BGE:
1006 case CEE_BGT:
1007 case CEE_BLE:
1008 case CEE_BLT:
1009 case CEE_BNE_UN:
1010 case CEE_BGE_UN:
1011 case CEE_BGT_UN:
1012 case CEE_BLE_UN:
1013 case CEE_BLT_UN:
1014 case OP_SWITCH:
1015 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1016 break;
1017 default:
1018 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
1019 /* Need to insert the ins before the compare */
1020 if (bb->code == bb->last_ins) {
1021 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1022 return;
1023 }
1024
1025 if (bb->code->next == bb->last_ins) {
1026 /* Only two instructions */
1027 opcode = bb->code->opcode;
1028
1029 if ((opcode == OP_COMPARE) || (opcode == OP_COMPARE_IMM) || (opcode == OP_ICOMPARE) || (opcode == OP_ICOMPARE_IMM) || (opcode == OP_FCOMPARE) || (opcode == OP_LCOMPARE) || (opcode == OP_LCOMPARE_IMM)) {
1030 /* NEW IR */
1031 mono_bblock_insert_before_ins (bb, bb->code, inst);
1032 } else {
1033 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1034 }
1035 } else {
1036 opcode = bb->last_ins->prev->opcode;
1037
1038 if ((opcode == OP_COMPARE) || (opcode == OP_COMPARE_IMM) || (opcode == OP_ICOMPARE) || (opcode == OP_ICOMPARE_IMM) || (opcode == OP_FCOMPARE) || (opcode == OP_LCOMPARE) || (opcode == OP_LCOMPARE_IMM)) {
1039 /* NEW IR */
1040 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
1041 } else {
1042 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1043 }
1044 }
1045 }
1046 else
1047 MONO_ADD_INS (bb, inst);
1048 break;
1049 }
1050 }
1051
1052 void
1053 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1054 {
1055 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1056 MonoJumpInfoBBTable *table;
1057
1058 table = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
1059 table->table = bbs;
1060 table->table_size = num_blocks;
1061
1062 ji->ip.label = label;
1063 ji->type = MONO_PATCH_INFO_SWITCH;
1064 ji->data.table = table;
1065 ji->next = cfg->patch_info;
1066 cfg->patch_info = ji;
1067 }
1068
1069 static MonoMethodSignature *
1070 mono_get_array_new_va_signature (int arity)
1071 {
1072 static GHashTable *sighash = NULL;
1073 MonoMethodSignature *res;
1074 int i;
1075
1076 mono_jit_lock ();
1077 if (!sighash) {
1078 sighash = g_hash_table_new (NULL, NULL);
1079 }
1080 else if ((res = g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
1081 mono_jit_unlock ();
1082 return res;
1083 }
1084
1085 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
1086
1087 res->pinvoke = 1;
1088 #ifdef MONO_ARCH_VARARG_ICALLS
1089 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
1090 res->call_convention = MONO_CALL_VARARG;
1091 #endif
1092
1093 #ifdef PLATFORM_WIN32
1094 res->call_convention = MONO_CALL_C;
1095 #endif
1096
1097 res->params [0] = &mono_defaults.int_class->byval_arg;
1098 for (i = 0; i < arity; i++)
1099 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
1100
1101 res->ret = &mono_defaults.object_class->byval_arg;
1102
1103 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
1104 mono_jit_unlock ();
1105
1106 return res;
1107 }
1108
1109 MonoJitICallInfo *
1110 mono_get_array_new_va_icall (int rank)
1111 {
1112 MonoMethodSignature *esig;
1113 char icall_name [256];
1114 char *name;
1115 MonoJitICallInfo *info;
1116
1117 /* Need to register the icall so it gets an icall wrapper */
1118 sprintf (icall_name, "ves_array_new_va_%d", rank);
1119
1120 mono_jit_lock ();
1121 info = mono_find_jit_icall_by_name (icall_name);
1122 if (info == NULL) {
1123 esig = mono_get_array_new_va_signature (rank);
1124 name = g_strdup (icall_name);
1125 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
1126
1127 g_hash_table_insert (jit_icall_name_hash, name, name);
1128 }
1129 mono_jit_unlock ();
1130
1131 return info;
1132 }
1133
1134 gboolean
1135 mini_class_is_system_array (MonoClass *klass)
1136 {
1137 if (klass->parent == mono_defaults.array_class)
1138 return TRUE;
1139 else
1140 return FALSE;
1141 }
1142
1143 static MonoJitICallInfo **emul_opcode_map = NULL;
1144
1145 MonoJitICallInfo *
1146 mono_find_jit_opcode_emulation (int opcode)
1147 {
1148 g_assert (opcode >= 0 && opcode <= OP_LAST);
1149 if (emul_opcode_map)
1150 return emul_opcode_map [opcode];
1151 else
1152 return NULL;
1153 }
1154
1155 gboolean
1156 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1157 {
1158 MonoAssembly *assembly = method->klass->image->assembly;
1159 if (method->wrapper_type != MONO_WRAPPER_NONE)
1160 return FALSE;
1161 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1162 return FALSE;
1163 if (mono_security_get_mode () != MONO_SECURITY_MODE_NONE)
1164 return FALSE;
1165 return mono_assembly_has_skip_verification (assembly);
1166 }
1167
1168 /*
1169 * mini_method_verify:
1170 *
1171 * Verify the method using the new verfier.
1172 *
1173 * Returns true if the method is invalid.
1174 */
1175 gboolean
1176 mini_method_verify (MonoCompile *cfg, MonoMethod *method)
1177 {
1178 GSList *tmp, *res;
1179 gboolean is_fulltrust;
1180 MonoLoaderError *error;
1181
1182 if (method->verification_success)
1183 return FALSE;
1184
1185 is_fulltrust = mono_verifier_is_method_full_trust (method);
1186
1187 if (!mono_verifier_is_enabled_for_method (method))
1188 return FALSE;
1189
1190 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility);
1191
1192 if ((error = mono_loader_get_last_error ())) {
1193 cfg->exception_type = error->exception_type;
1194 if (res)
1195 mono_free_verify_list (res);
1196 return TRUE;
1197 }
1198
1199 if (res) {
1200 for (tmp = res; tmp; tmp = tmp->next) {
1201 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1202 if (info->info.status == MONO_VERIFY_ERROR) {
1203 cfg->exception_type = info->exception_type;
1204 cfg->exception_message = g_strdup (info->info.message);
1205 mono_free_verify_list (res);
1206 return TRUE;
1207 }
1208 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && !is_fulltrust) {
1209 cfg->exception_type = info->exception_type;
1210 cfg->exception_message = g_strdup (info->info.message);
1211 mono_free_verify_list (res);
1212 return TRUE;
1213 }
1214 }
1215 mono_free_verify_list (res);
1216 }
1217 method->verification_success = 1;
1218 return FALSE;
1219 }
1220
1221 static void
1222 create_helper_signature (void)
1223 {
1224 helper_sig_domain_get = mono_create_icall_signature ("ptr");
1225 helper_sig_class_init_trampoline = mono_create_icall_signature ("void");
1226 helper_sig_generic_class_init_trampoline = mono_create_icall_signature ("void");
1227 helper_sig_rgctx_lazy_fetch_trampoline = mono_create_icall_signature ("ptr ptr");
1228 helper_sig_monitor_enter_exit_trampoline = mono_create_icall_signature ("void");
1229 }
1230
1231 static gconstpointer
1232 mono_icall_get_wrapper_full (MonoJitICallInfo* callinfo, gboolean do_compile)
1233 {
1234 char *name;
1235 MonoMethod *wrapper;
1236 gconstpointer trampoline;
1237 MonoDomain *domain = mono_get_root_domain ();
1238
1239 if (callinfo->wrapper) {
1240 return callinfo->wrapper;
1241 }
1242
1243 if (callinfo->trampoline)
1244 return callinfo->trampoline;
1245
1246 /*
1247 * We use the lock on the root domain instead of the JIT lock to protect
1248 * callinfo->trampoline, since we do a lot of stuff inside the critical section.
1249 */
1250 mono_loader_lock (); /*FIXME mono_compile_method requires the loader lock, by large.*/
1251 mono_domain_lock (domain);
1252
1253 if (callinfo->trampoline) {
1254 mono_domain_unlock (domain);
1255 mono_loader_unlock ();
1256 return callinfo->trampoline;
1257 }
1258
1259 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
1260 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
1261 g_free (name);
1262
1263 if (do_compile)
1264 trampoline = mono_compile_method (wrapper);
1265 else
1266 trampoline = mono_create_ftnptr (domain, mono_create_jit_trampoline_in_domain (domain, wrapper));
1267 mono_register_jit_icall_wrapper (callinfo, trampoline);
1268
1269 callinfo->trampoline = trampoline;
1270
1271 mono_domain_unlock (domain);
1272 mono_loader_unlock ();
1273
1274 return callinfo->trampoline;
1275 }
1276
1277 gconstpointer
1278 mono_icall_get_wrapper (MonoJitICallInfo* callinfo)
1279 {
1280 return mono_icall_get_wrapper_full (callinfo, FALSE);
1281 }
1282
1283 static void
1284 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1285 {
1286 if (!domain_jit_info (domain)->dynamic_code_hash)
1287 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1288 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1289 }
1290
1291 static MonoJitDynamicMethodInfo*
1292 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1293 {
1294 MonoJitDynamicMethodInfo *res;
1295
1296 if (domain_jit_info (domain)->dynamic_code_hash)
1297 res = g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1298 else
1299 res = NULL;
1300 return res;
1301 }
1302
1303 typedef struct {
1304 MonoClass *vtype;
1305 GList *active, *inactive;
1306 GSList *slots;
1307 } StackSlotInfo;
1308
1309 static gint
1310 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1311 {
1312 MonoMethodVar *v1 = (MonoMethodVar*)a;
1313 MonoMethodVar *v2 = (MonoMethodVar*)b;
1314
1315 if (v1 == v2)
1316 return 0;
1317 else if (v1->interval->range && v2->interval->range)
1318 return v1->interval->range->from - v2->interval->range->from;
1319 else if (v1->interval->range)
1320 return -1;
1321 else
1322 return 1;
1323 }
1324
1325 #ifndef DISABLE_JIT
1326
1327 #if 0
1328 #define LSCAN_DEBUG(a) do { a; } while (0)
1329 #else
1330 #define LSCAN_DEBUG(a)
1331 #endif
1332
1333 static gint32*
1334 mono_allocate_stack_slots_full2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1335 {
1336 int i, slot, offset, size;
1337 guint32 align;
1338 MonoMethodVar *vmv;
1339 MonoInst *inst;
1340 gint32 *offsets;
1341 GList *vars = NULL, *l, *unhandled;
1342 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1343 MonoType *t;
1344 int nvtypes;
1345
1346 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1347
1348 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1349 vtype_stack_slots = NULL;
1350 nvtypes = 0;
1351
1352 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1353 for (i = 0; i < cfg->num_varinfo; ++i)
1354 offsets [i] = -1;
1355
1356 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1357 inst = cfg->varinfo [i];
1358 vmv = MONO_VARINFO (cfg, i);
1359
1360 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1361 continue;
1362
1363 vars = g_list_prepend (vars, vmv);
1364 }
1365
1366 vars = g_list_sort (g_list_copy (vars), compare_by_interval_start_pos_func);
1367
1368 /* Sanity check */
1369 /*
1370 i = 0;
1371 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1372 MonoMethodVar *current = unhandled->data;
1373
1374 if (current->interval->range) {
1375 g_assert (current->interval->range->from >= i);
1376 i = current->interval->range->from;
1377 }
1378 }
1379 */
1380
1381 offset = 0;
1382 *stack_align = 0;
1383 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1384 MonoMethodVar *current = unhandled->data;
1385
1386 vmv = current;
1387 inst = cfg->varinfo [vmv->idx];
1388
1389 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1390 * pinvoke wrappers when they call functions returning structures */
1391 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype) && inst->inst_vtype->type != MONO_TYPE_TYPEDBYREF) {
1392 size = mono_class_native_size (mono_class_from_mono_type (inst->inst_vtype), &align);
1393 }
1394 else {
1395 int ialign;
1396
1397 size = mono_type_size (inst->inst_vtype, &ialign);
1398 align = ialign;
1399 }
1400
1401 t = mono_type_get_underlying_type (inst->inst_vtype);
1402 switch (t->type) {
1403 case MONO_TYPE_GENERICINST:
1404 if (!mono_type_generic_inst_is_valuetype (t)) {
1405 slot_info = &scalar_stack_slots [t->type];
1406 break;
1407 }
1408 /* Fall through */
1409 case MONO_TYPE_VALUETYPE:
1410 if (!vtype_stack_slots)
1411 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1412 for (i = 0; i < nvtypes; ++i)
1413 if (t->data.klass == vtype_stack_slots [i].vtype)
1414 break;
1415 if (i < nvtypes)
1416 slot_info = &vtype_stack_slots [i];
1417 else {
1418 g_assert (nvtypes < 256);
1419 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1420 slot_info = &vtype_stack_slots [nvtypes];
1421 nvtypes ++;
1422 }
1423 break;
1424 case MONO_TYPE_CLASS:
1425 case MONO_TYPE_OBJECT:
1426 case MONO_TYPE_ARRAY:
1427 case MONO_TYPE_SZARRAY:
1428 case MONO_TYPE_STRING:
1429 case MONO_TYPE_PTR:
1430 case MONO_TYPE_I:
1431 case MONO_TYPE_U:
1432 #if SIZEOF_REGISTER == 4
1433 case MONO_TYPE_I4:
1434 #else
1435 case MONO_TYPE_I8:
1436 /* Share non-float stack slots of the same size */
1437 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1438 break;
1439 #endif
1440 default:
1441 slot_info = &scalar_stack_slots [t->type];
1442 }
1443
1444 slot = 0xffffff;
1445 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1446 int pos;
1447 gboolean changed;
1448
1449 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1450
1451 if (!current->interval->range) {
1452 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1453 pos = ~0;
1454 else {
1455 /* Dead */
1456 inst->flags |= MONO_INST_IS_DEAD;
1457 continue;
1458 }
1459 }
1460 else
1461 pos = current->interval->range->from;
1462
1463 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1464 if (current->interval->range)
1465 LSCAN_DEBUG (mono_linterval_print (current->interval));
1466 LSCAN_DEBUG (printf ("\n"));
1467
1468 /* Check for intervals in active which expired or inactive */
1469 changed = TRUE;
1470 /* FIXME: Optimize this */
1471 while (changed) {
1472 changed = FALSE;
1473 for (l = slot_info->active; l != NULL; l = l->next) {
1474 MonoMethodVar *v = (MonoMethodVar*)l->data;
1475
1476 if (v->interval->last_range->to < pos) {
1477 slot_info->active = g_list_delete_link (slot_info->active, l);
1478 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1479 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1480 changed = TRUE;
1481 break;
1482 }
1483 else if (!mono_linterval_covers (v->interval, pos)) {
1484 slot_info->inactive = g_list_append (slot_info->inactive, v);
1485 slot_info->active = g_list_delete_link (slot_info->active, l);
1486 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1487 changed = TRUE;
1488 break;
1489 }
1490 }
1491 }
1492
1493 /* Check for intervals in inactive which expired or active */
1494 changed = TRUE;
1495 /* FIXME: Optimize this */
1496 while (changed) {
1497 changed = FALSE;
1498 for (l = slot_info->inactive; l != NULL; l = l->next) {
1499 MonoMethodVar *v = (MonoMethodVar*)l->data;
1500
1501 if (v->interval->last_range->to < pos) {
1502 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1503 // FIXME: Enabling this seems to cause impossible to debug crashes
1504 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1505 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1506 changed = TRUE;
1507 break;
1508 }
1509 else if (mono_linterval_covers (v->interval, pos)) {
1510 slot_info->active = g_list_append (slot_info->active, v);
1511 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1512 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1513 changed = TRUE;
1514 break;
1515 }
1516 }
1517 }
1518
1519 /*
1520 * This also handles the case when the variable is used in an
1521 * exception region, as liveness info is not computed there.
1522 */
1523 /*
1524 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1525 * opcodes.
1526 */
1527 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1528 if (slot_info->slots) {
1529 slot = GPOINTER_TO_INT (slot_info->slots->data);
1530
1531 slot_info->slots = slot_info->slots->next;
1532 }
1533
1534 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1535
1536 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1537 }
1538 }
1539
1540 #if 0
1541 {
1542 static int count = 0;
1543 count ++;
1544
1545 if (count == atoi (getenv ("COUNT3")))
1546 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1547 if (count > atoi (getenv ("COUNT3")))
1548 slot = 0xffffff;
1549 else {
1550 mono_print_ins (inst);
1551 }
1552 }
1553 #endif
1554
1555 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1556
1557 if (slot == 0xffffff) {
1558 /*
1559 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1560 * efficient copying (and to work around the fact that OP_MEMCPY
1561 * and OP_MEMSET ignores alignment).
1562 */
1563 if (MONO_TYPE_ISSTRUCT (t))
1564 align = MAX (sizeof (gpointer), mono_class_min_align (mono_class_from_mono_type (t)));
1565
1566 if (backward) {
1567 offset += size;
1568 offset += align - 1;
1569 offset &= ~(align - 1);
1570 slot = offset;
1571 }
1572 else {
1573 offset += align - 1;
1574 offset &= ~(align - 1);
1575 slot = offset;
1576 offset += size;
1577 }
1578
1579 if (*stack_align == 0)
1580 *stack_align = align;
1581 }
1582
1583 offsets [vmv->idx] = slot;
1584 }
1585 g_list_free (vars);
1586 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1587 if (scalar_stack_slots [i].active)
1588 g_list_free (scalar_stack_slots [i].active);
1589 }
1590 for (i = 0; i < nvtypes; ++i) {
1591 if (vtype_stack_slots [i].active)
1592 g_list_free (vtype_stack_slots [i].active);
1593 }
1594
1595 mono_jit_stats.locals_stack_size += offset;
1596
1597 *stack_size = offset;
1598 return offsets;
1599 }
1600
1601 /*
1602 * mono_allocate_stack_slots_full:
1603 *
1604 * Allocate stack slots for all non register allocated variables using a
1605 * linear scan algorithm.
1606 * Returns: an array of stack offsets.
1607 * STACK_SIZE is set to the amount of stack space needed.
1608 * STACK_ALIGN is set to the alignment needed by the locals area.
1609 */
1610 gint32*
1611 mono_allocate_stack_slots_full (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1612 {
1613 int i, slot, offset, size;
1614 guint32 align;
1615 MonoMethodVar *vmv;
1616 MonoInst *inst;
1617 gint32 *offsets;
1618 GList *vars = NULL, *l;
1619 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1620 MonoType *t;
1621 int nvtypes;
1622
1623 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1624 return mono_allocate_stack_slots_full2 (cfg, backward, stack_size, stack_align);
1625
1626 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1627 vtype_stack_slots = NULL;
1628 nvtypes = 0;
1629
1630 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1631 for (i = 0; i < cfg->num_varinfo; ++i)
1632 offsets [i] = -1;
1633
1634 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1635 inst = cfg->varinfo [i];
1636 vmv = MONO_VARINFO (cfg, i);
1637
1638 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1639 continue;
1640
1641 vars = g_list_prepend (vars, vmv);
1642 }
1643
1644 vars = mono_varlist_sort (cfg, vars, 0);
1645 offset = 0;
1646 *stack_align = sizeof (gpointer);
1647 for (l = vars; l; l = l->next) {
1648 vmv = l->data;
1649 inst = cfg->varinfo [vmv->idx];
1650
1651 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1652 * pinvoke wrappers when they call functions returning structures */
1653 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype) && inst->inst_vtype->type != MONO_TYPE_TYPEDBYREF) {
1654 size = mono_class_native_size (mono_class_from_mono_type (inst->inst_vtype), &align);
1655 } else {
1656 int ialign;
1657
1658 size = mono_type_size (inst->inst_vtype, &ialign);
1659 align = ialign;
1660 }
1661
1662 t = mono_type_get_underlying_type (inst->inst_vtype);
1663 if (t->byref) {
1664 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1665 } else {
1666 switch (t->type) {
1667 case MONO_TYPE_GENERICINST:
1668 if (!mono_type_generic_inst_is_valuetype (t)) {
1669 slot_info = &scalar_stack_slots [t->type];
1670 break;
1671 }
1672 /* Fall through */
1673 case MONO_TYPE_VALUETYPE:
1674 if (!vtype_stack_slots)
1675 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1676 for (i = 0; i < nvtypes; ++i)
1677 if (t->data.klass == vtype_stack_slots [i].vtype)
1678 break;
1679 if (i < nvtypes)
1680 slot_info = &vtype_stack_slots [i];
1681 else {
1682 g_assert (nvtypes < 256);
1683 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1684 slot_info = &vtype_stack_slots [nvtypes];
1685 nvtypes ++;
1686 }
1687 break;
1688 case MONO_TYPE_CLASS:
1689 case MONO_TYPE_OBJECT:
1690 case MONO_TYPE_ARRAY:
1691 case MONO_TYPE_SZARRAY:
1692 case MONO_TYPE_STRING:
1693 case MONO_TYPE_PTR:
1694 case MONO_TYPE_I:
1695 case MONO_TYPE_U:
1696 #if SIZEOF_REGISTER == 4
1697 case MONO_TYPE_I4:
1698 #else
1699 case MONO_TYPE_I8:
1700 #endif
1701 /* Share non-float stack slots of the same size */
1702 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1703 break;
1704 default:
1705 slot_info = &scalar_stack_slots [t->type];
1706 }
1707 }
1708
1709 slot = 0xffffff;
1710 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1711 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1712
1713 /* expire old intervals in active */
1714 while (slot_info->active) {
1715 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1716
1717 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1718 break;
1719
1720 //printf ("EXPIR %2d %08x %08x C%d R%d\n", amv->idx, amv->range.first_use.abs_pos, amv->range.last_use.abs_pos, amv->spill_costs, amv->reg);
1721
1722 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1723 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1724 }
1725
1726 /*
1727 * This also handles the case when the variable is used in an
1728 * exception region, as liveness info is not computed there.
1729 */
1730 /*
1731 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1732 * opcodes.
1733 */
1734 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1735 if (slot_info->slots) {
1736 slot = GPOINTER_TO_INT (slot_info->slots->data);
1737
1738 slot_info->slots = slot_info->slots->next;
1739 }
1740
1741 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1742 }
1743 }
1744
1745 {
1746 static int count = 0;
1747 count ++;
1748
1749 /*
1750 if (count == atoi (getenv ("COUNT")))
1751 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1752 if (count > atoi (getenv ("COUNT")))
1753 slot = 0xffffff;
1754 else {
1755 mono_print_ins (inst);
1756 }
1757 */
1758 }
1759
1760 if (cfg->disable_reuse_stack_slots)
1761 slot = 0xffffff;
1762
1763 if (slot == 0xffffff) {
1764 /*
1765 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1766 * efficient copying (and to work around the fact that OP_MEMCPY
1767 * and OP_MEMSET ignores alignment).
1768 */
1769 if (MONO_TYPE_ISSTRUCT (t)) {
1770 align = MAX (sizeof (gpointer), mono_class_min_align (mono_class_from_mono_type (t)));
1771 /*
1772 * Align the size too so the code generated for passing vtypes in
1773 * registers doesn't overwrite random locals.
1774 */
1775 size = (size + (align - 1)) & ~(align -1);
1776 }
1777
1778 if (backward) {
1779 offset += size;
1780 offset += align - 1;
1781 offset &= ~(align - 1);
1782 slot = offset;
1783 }
1784 else {
1785 offset += align - 1;
1786 offset &= ~(align - 1);
1787 slot = offset;
1788 offset += size;
1789 }
1790
1791 *stack_align = MAX (*stack_align, align);
1792 }
1793
1794 offsets [vmv->idx] = slot;
1795 }
1796 g_list_free (vars);
1797 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1798 if (scalar_stack_slots [i].active)
1799 g_list_free (scalar_stack_slots [i].active);
1800 }
1801 for (i = 0; i < nvtypes; ++i) {
1802 if (vtype_stack_slots [i].active)
1803 g_list_free (vtype_stack_slots [i].active);
1804 }
1805
1806 mono_jit_stats.locals_stack_size += offset;
1807
1808 *stack_size = offset;
1809 return offsets;
1810 }
1811
1812 #else
1813
1814 gint32*
1815 mono_allocate_stack_slots_full (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1816 {
1817 g_assert_not_reached ();
1818 return NULL;
1819 }
1820
1821 #endif /* DISABLE_JIT */
1822
1823 gint32*
1824 mono_allocate_stack_slots (MonoCompile *m, guint32 *stack_size, guint32 *stack_align)
1825 {
1826 return mono_allocate_stack_slots_full (m, TRUE, stack_size, stack_align);
1827 }
1828
1829 void
1830 mono_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, gboolean no_throw)
1831 {
1832 MonoJitICallInfo *info;
1833 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1834
1835 if (!emul_opcode_map)
1836 emul_opcode_map = g_new0 (MonoJitICallInfo*, OP_LAST + 1);
1837
1838 g_assert (!sig->hasthis);
1839 g_assert (sig->param_count < 3);
1840
1841 info = mono_register_jit_icall (func, name, sig, no_throw);
1842
1843 emul_opcode_map [opcode] = info;
1844 }
1845
1846 static void
1847 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
1848 {
1849 MonoMethodSignature *sig;
1850
1851 if (sigstr)
1852 sig = mono_create_icall_signature (sigstr);
1853 else
1854 sig = NULL;
1855
1856 mono_register_jit_icall (func, name, sig, save);
1857 }
1858
1859 static void
1860 print_dfn (MonoCompile *cfg) {
1861 int i, j;
1862 char *code;
1863 MonoBasicBlock *bb;
1864 MonoInst *c;
1865
1866 g_print ("IR code for method %s\n", mono_method_full_name (cfg->method, TRUE));
1867
1868 for (i = 0; i < cfg->num_bblocks; ++i) {
1869 bb = cfg->bblocks [i];
1870 /*if (bb->cil_code) {
1871 char* code1, *code2;
1872 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
1873 if (bb->last_ins->cil_code)
1874 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
1875 else
1876 code2 = g_strdup ("");
1877
1878 code1 [strlen (code1) - 1] = 0;
1879 code = g_strdup_printf ("%s -> %s", code1, code2);
1880 g_free (code1);
1881 g_free (code2);
1882 } else*/
1883 code = g_strdup ("\n");
1884 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
1885 MONO_BB_FOR_EACH_INS (bb, c) {
1886 mono_print_ins_index (-1, c);
1887 }
1888
1889 g_print ("\tprev:");
1890 for (j = 0; j < bb->in_count; ++j) {
1891 g_print (" BB%d", bb->in_bb [j]->block_num);
1892 }
1893 g_print ("\t\tsucc:");
1894 for (j = 0; j < bb->out_count; ++j) {
1895 g_print (" BB%d", bb->out_bb [j]->block_num);
1896 }
1897 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
1898
1899 if (bb->idom)
1900 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
1901
1902 if (bb->dominators)
1903 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
1904 if (bb->dfrontier)
1905 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
1906 g_free (code);
1907 }
1908
1909 g_print ("\n");
1910 }
1911
1912 void
1913 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
1914 {
1915 MONO_ADD_INS (bb, inst);
1916 }
1917
1918 void
1919 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1920 {
1921 if (ins == NULL) {
1922 ins = bb->code;
1923 bb->code = ins_to_insert;
1924
1925 /* Link with next */
1926 ins_to_insert->next = ins;
1927 if (ins)
1928 ins->prev = ins_to_insert;
1929
1930 if (bb->last_ins == NULL)
1931 bb->last_ins = ins_to_insert;
1932 } else {
1933 /* Link with next */
1934 ins_to_insert->next = ins->next;
1935 if (ins->next)
1936 ins->next->prev = ins_to_insert;
1937
1938 /* Link with previous */
1939 ins->next = ins_to_insert;
1940 ins_to_insert->prev = ins;
1941
1942 if (bb->last_ins == ins)
1943 bb->last_ins = ins_to_insert;
1944 }
1945 }
1946
1947 void
1948 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1949 {
1950 if (ins == NULL) {
1951 ins = bb->code;
1952 bb->code = ins_to_insert;
1953 ins_to_insert->next = ins;
1954 if (bb->last_ins == NULL)
1955 bb->last_ins = ins_to_insert;
1956 } else {
1957 /* Link with previous */
1958 if (ins->prev)
1959 ins->prev->next = ins_to_insert;
1960 ins_to_insert->prev = ins->prev;
1961
1962 /* Link with next */
1963 ins->prev = ins_to_insert;
1964 ins_to_insert->next = ins;
1965
1966 if (bb->code == ins)
1967 bb->code = ins_to_insert;
1968 }
1969 }
1970
1971 /*
1972 * mono_verify_bblock:
1973 *
1974 * Verify that the next and prev pointers are consistent inside the instructions in BB.
1975 */
1976 void
1977 mono_verify_bblock (MonoBasicBlock *bb)
1978 {
1979 MonoInst *ins, *prev;
1980
1981 prev = NULL;
1982 for (ins = bb->code; ins; ins = ins->next) {
1983 g_assert (ins->prev == prev);
1984 prev = ins;
1985 }
1986 if (bb->last_ins)
1987 g_assert (!bb->last_ins->next);
1988 }
1989
1990 /*
1991 * mono_verify_cfg:
1992 *
1993 * Perform consistency checks on the JIT data structures and the IR
1994 */
1995 void
1996 mono_verify_cfg (MonoCompile *cfg)
1997 {
1998 MonoBasicBlock *bb;
1999
2000 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2001 mono_verify_bblock (bb);
2002 }
2003
2004 void
2005 mono_destroy_compile (MonoCompile *cfg)
2006 {
2007 //mono_mempool_stats (cfg->mempool);
2008 mono_free_loop_info (cfg);
2009 if (cfg->rs)
2010 mono_regstate_free (cfg->rs);
2011 if (cfg->spvars)
2012 g_hash_table_destroy (cfg->spvars);
2013 if (cfg->exvars)
2014 g_hash_table_destroy (cfg->exvars);
2015 mono_mempool_destroy (cfg->mempool);
2016 g_list_free (cfg->ldstr_list);
2017 g_hash_table_destroy (cfg->token_info_hash);
2018 if (cfg->abs_patches)
2019 g_hash_table_destroy (cfg->abs_patches);
2020
2021 g_free (cfg->varinfo);
2022 g_free (cfg->vars);
2023 g_free (cfg->exception_message);
2024 g_free (cfg);
2025 }
2026
2027 #ifdef HAVE_KW_THREAD
2028 static __thread gpointer mono_lmf_addr MONO_TLS_FAST;
2029 #ifdef MONO_ARCH_ENABLE_MONO_LMF_VAR
2030 /*
2031 * When this is defined, the current lmf is stored in this tls variable instead of in
2032 * jit_tls->lmf.
2033 */
2034 static __thread gpointer mono_lmf MONO_TLS_FAST;
2035 #endif
2036 #endif
2037
2038 guint32
2039 mono_get_jit_tls_key (void)
2040 {
2041 return mono_jit_tls_id;
2042 }
2043
2044 gint32
2045 mono_get_jit_tls_offset (void)
2046 {
2047 #ifdef HAVE_KW_THREAD
2048 int offset;
2049 MONO_THREAD_VAR_OFFSET (mono_jit_tls, offset);
2050 return offset;
2051 #else
2052 return -1;
2053 #endif
2054 }
2055
2056 gint32
2057 mono_get_lmf_tls_offset (void)
2058 {
2059 #if defined(HAVE_KW_THREAD) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2060 int offset;
2061 MONO_THREAD_VAR_OFFSET(mono_lmf,offset);
2062 return offset;
2063 #else
2064 return -1;
2065 #endif
2066 }
2067
2068 gint32
2069 mono_get_lmf_addr_tls_offset (void)
2070 {
2071 int offset;
2072 MONO_THREAD_VAR_OFFSET(mono_lmf_addr,offset);
2073 return offset;
2074 }
2075
2076 MonoLMF *
2077 mono_get_lmf (void)
2078 {
2079 #if defined(HAVE_KW_THREAD) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2080 return mono_lmf;
2081 #else
2082 MonoJitTlsData *jit_tls;
2083
2084 if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
2085 return jit_tls->lmf;
2086
2087 g_assert_not_reached ();
2088 return NULL;
2089 #endif
2090 }
2091
2092 MonoLMF **
2093 mono_get_lmf_addr (void)
2094 {
2095 #ifdef HAVE_KW_THREAD
2096 return mono_lmf_addr;
2097 #else
2098 MonoJitTlsData *jit_tls;
2099
2100 if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
2101 return &jit_tls->lmf;
2102
2103 g_assert_not_reached ();
2104 return NULL;
2105 #endif
2106 }
2107
2108 /* Called by native->managed wrappers */
2109 void
2110 mono_jit_thread_attach (MonoDomain *domain)
2111 {
2112 #ifdef HAVE_KW_THREAD
2113 if (!mono_lmf_addr) {
2114 mono_thread_attach (domain);
2115 }
2116 #else
2117 if (!TlsGetValue (mono_jit_tls_id))
2118 mono_thread_attach (domain);
2119 #endif
2120 if (mono_domain_get () != domain)
2121 mono_domain_set (domain, TRUE);
2122 }
2123
2124 /**
2125 * mono_thread_abort:
2126 * @obj: exception object
2127 *
2128 * abort the thread, print exception information and stack trace
2129 */
2130 static void
2131 mono_thread_abort (MonoObject *obj)
2132 {
2133 /* MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id); */
2134
2135 /* handle_remove should be eventually called for this thread, too
2136 g_free (jit_tls);*/
2137
2138 if ((mono_runtime_unhandled_exception_policy_get () == MONO_UNHANDLED_POLICY_LEGACY) ||
2139 (obj->vtable->klass == mono_defaults.threadabortexception_class)) {
2140 mono_thread_exit ();
2141 } else {
2142 exit (mono_environment_exitcode_get ());
2143 }
2144 }
2145
2146 static void*
2147 setup_jit_tls_data (gpointer stack_start, gpointer abort_func)
2148 {
2149 MonoJitTlsData *jit_tls;
2150 MonoLMF *lmf;
2151
2152 jit_tls = TlsGetValue (mono_jit_tls_id);
2153 if (jit_tls)
2154 return jit_tls;
2155
2156 jit_tls = g_new0 (MonoJitTlsData, 1);
2157
2158 TlsSetValue (mono_jit_tls_id, jit_tls);
2159
2160 #ifdef HAVE_KW_THREAD
2161 mono_jit_tls = jit_tls;
2162 #endif
2163
2164 jit_tls->abort_func = abort_func;
2165 jit_tls->end_of_stack = stack_start;
2166
2167 lmf = g_new0 (MonoLMF, 1);
2168 #ifdef MONO_ARCH_INIT_TOP_LMF_ENTRY
2169 MONO_ARCH_INIT_TOP_LMF_ENTRY (lmf);
2170 #else
2171 lmf->ebp = -1;
2172 #endif
2173
2174 jit_tls->first_lmf = lmf;
2175
2176 #if defined(HAVE_KW_THREAD) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2177 /* jit_tls->lmf is unused */
2178 mono_lmf = lmf;
2179 mono_lmf_addr = &mono_lmf;
2180 #else
2181 #if defined(HAVE_KW_THREAD)
2182 mono_lmf_addr = &jit_tls->lmf;
2183 #endif
2184
2185 jit_tls->lmf = lmf;
2186 #endif
2187
2188 mono_arch_setup_jit_tls_data (jit_tls);
2189 mono_setup_altstack (jit_tls);
2190
2191 return jit_tls;
2192 }
2193
2194 static void
2195 mono_thread_start_cb (gsize tid, gpointer stack_start, gpointer func)
2196 {
2197 MonoThread *thread;
2198 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort);
2199 thread = mono_thread_current ();
2200 mono_debugger_thread_created (tid, thread, jit_tls);
2201 if (thread)
2202 thread->jit_data = jit_tls;
2203 }
2204
2205 void (*mono_thread_attach_aborted_cb ) (MonoObject *obj) = NULL;
2206
2207 static void
2208 mono_thread_abort_dummy (MonoObject *obj)
2209 {
2210 if (mono_thread_attach_aborted_cb)
2211 mono_thread_attach_aborted_cb (obj);
2212 else
2213 mono_thread_abort (obj);
2214 }
2215
2216 static void
2217 mono_thread_attach_cb (gsize tid, gpointer stack_start)
2218 {
2219 MonoThread *thread;
2220 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort_dummy);
2221 thread = mono_thread_current ();
2222 mono_debugger_thread_created (tid, thread, (MonoJitTlsData *) jit_tls);
2223 if (thread)
2224 thread->jit_data = jit_tls;
2225 if (mono_profiler_get_events () & MONO_PROFILE_STATISTICAL)
2226 mono_runtime_setup_stat_profiler ();
2227 }
2228
2229 static void
2230 mini_thread_cleanup (MonoThread *thread)
2231 {
2232 MonoJitTlsData *jit_tls = thread->jit_data;
2233
2234 if (jit_tls) {
2235 mono_debugger_thread_cleanup (jit_tls);
2236 mono_arch_free_jit_tls_data (jit_tls);
2237
2238 mono_free_altstack (jit_tls);
2239 g_free (jit_tls->first_lmf);
2240 g_free (jit_tls);
2241 thread->jit_data = NULL;
2242
2243 /* We can't clean up tls information if we are on another thread, it will clean up the wrong stuff
2244 * It would be nice to issue a warning when this happens outside of the shutdown sequence. but it's
2245 * not a trivial thing.
2246 *
2247 * The current offender is mono_thread_manage which cleanup threads from the outside.
2248 */
2249 if (thread == mono_thread_current ()) {
2250 TlsSetValue (mono_jit_tls_id, NULL);
2251
2252 #ifdef HAVE_KW_THREAD
2253 mono_jit_tls = NULL;
2254 mono_lmf_addr = NULL;
2255 #if defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2256 mono_lmf = NULL;
2257 #endif
2258 #endif
2259 }
2260 }
2261 }
2262
2263 static MonoInst*
2264 mono_create_tls_get (MonoCompile *cfg, int offset)
2265 {
2266 #ifdef MONO_ARCH_HAVE_TLS_GET
2267 MonoInst* ins;
2268
2269 if (offset == -1)
2270 return NULL;
2271
2272 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
2273 ins->dreg = mono_alloc_preg (cfg);
2274 ins->inst_offset = offset;
2275 return ins;
2276 #else
2277 return NULL;
2278 #endif
2279 }
2280
2281 MonoInst*
2282 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
2283 {
2284 return mono_create_tls_get (cfg, mono_get_jit_tls_offset ());
2285 }
2286
2287 MonoInst*
2288 mono_get_domain_intrinsic (MonoCompile* cfg)
2289 {
2290 return mono_create_tls_get (cfg, mono_domain_get_tls_offset ());
2291 }
2292
2293 MonoInst*
2294 mono_get_thread_intrinsic (MonoCompile* cfg)
2295 {
2296 return mono_create_tls_get (cfg, mono_thread_get_tls_offset ());
2297 }
2298
2299 void
2300 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2301 {
2302 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
2303
2304 ji->ip.i = ip;
2305 ji->type = type;
2306 ji->data.target = target;
2307 ji->next = cfg->patch_info;
2308
2309 cfg->patch_info = ji;
2310 }
2311
2312 MonoJumpInfo *
2313 mono_patch_info_list_prepend (MonoJumpInfo *list, int ip, MonoJumpInfoType type, gconstpointer target)
2314 {
2315 MonoJumpInfo *ji = g_new0 (MonoJumpInfo, 1);
2316
2317 ji->ip.i = ip;
2318 ji->type = type;
2319 ji->data.target = target;
2320 ji->next = list;
2321
2322 return ji;
2323 }
2324
2325 void
2326 mono_remove_patch_info (MonoCompile *cfg, int ip)
2327 {
2328 MonoJumpInfo **ji = &cfg->patch_info;
2329
2330 while (*ji) {
2331 if ((*ji)->ip.i == ip)
2332 *ji = (*ji)->next;
2333 else
2334 ji = &((*ji)->next);
2335 }
2336 }
2337
2338 /**
2339 * mono_patch_info_dup_mp:
2340 *
2341 * Make a copy of PATCH_INFO, allocating memory from the mempool MP.
2342 */
2343 MonoJumpInfo*
2344 mono_patch_info_dup_mp (MonoMemPool *mp, MonoJumpInfo *patch_info)
2345 {
2346 MonoJumpInfo *res = mono_mempool_alloc (mp, sizeof (MonoJumpInfo));
2347 memcpy (res, patch_info, sizeof (MonoJumpInfo));
2348
2349 switch (patch_info->type) {
2350 case MONO_PATCH_INFO_RVA:
2351 case MONO_PATCH_INFO_LDSTR:
2352 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2353 case MONO_PATCH_INFO_LDTOKEN:
2354 case MONO_PATCH_INFO_DECLSEC:
2355 res->data.token = mono_mempool_alloc (mp, sizeof (MonoJumpInfoToken));
2356 memcpy (res->data.token, patch_info->data.token, sizeof (MonoJumpInfoToken));
2357 break;
2358 case MONO_PATCH_INFO_SWITCH:
2359 res->data.table = mono_mempool_alloc (mp, sizeof (MonoJumpInfoBBTable));
2360 memcpy (res->data.table, patch_info->data.table, sizeof (MonoJumpInfoBBTable));
2361 break;
2362 case MONO_PATCH_INFO_RGCTX_FETCH:
2363 res->data.rgctx_entry = mono_mempool_alloc (mp, sizeof (MonoJumpInfoRgctxEntry));
2364 memcpy (res->data.rgctx_entry, patch_info->data.rgctx_entry, sizeof (MonoJumpInfoRgctxEntry));
2365 res->data.rgctx_entry->data = mono_patch_info_dup_mp (mp, res->data.rgctx_entry->data);
2366 break;
2367 default:
2368 break;
2369 }
2370
2371 return res;
2372 }
2373
2374 guint
2375 mono_patch_info_hash (gconstpointer data)
2376 {
2377 const MonoJumpInfo *ji = (MonoJumpInfo*)data;
2378
2379 switch (ji->type) {
2380 case MONO_PATCH_INFO_RVA:
2381 case MONO_PATCH_INFO_LDSTR:
2382 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2383 case MONO_PATCH_INFO_LDTOKEN:
2384 case MONO_PATCH_INFO_DECLSEC:
2385 return (ji->type << 8) | ji->data.token->token;
2386 case MONO_PATCH_INFO_VTABLE:
2387 case MONO_PATCH_INFO_CLASS:
2388 case MONO_PATCH_INFO_IID:
2389 case MONO_PATCH_INFO_ADJUSTED_IID:
2390 case MONO_PATCH_INFO_CLASS_INIT:
2391 case MONO_PATCH_INFO_METHODCONST:
2392 case MONO_PATCH_INFO_METHOD:
2393 case MONO_PATCH_INFO_METHOD_JUMP:
2394 case MONO_PATCH_INFO_IMAGE:
2395 case MONO_PATCH_INFO_INTERNAL_METHOD:
2396 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
2397 case MONO_PATCH_INFO_FIELD:
2398 case MONO_PATCH_INFO_SFLDA:
2399 return (ji->type << 8) | (gssize)ji->data.target;
2400 default:
2401 return (ji->type << 8);
2402 }
2403 }
2404
2405 /*
2406 * mono_patch_info_equal:
2407 *
2408 * This might fail to recognize equivalent patches, i.e. floats, so its only
2409 * usable in those cases where this is not a problem, i.e. sharing GOT slots
2410 * in AOT.
2411 */
2412 gint
2413 mono_patch_info_equal (gconstpointer ka, gconstpointer kb)
2414 {
2415 const MonoJumpInfo *ji1 = (MonoJumpInfo*)ka;
2416 const MonoJumpInfo *ji2 = (MonoJumpInfo*)kb;
2417
2418 if (ji1->type != ji2->type)
2419 return 0;
2420
2421 switch (ji1->type) {
2422 case MONO_PATCH_INFO_RVA:
2423 case MONO_PATCH_INFO_LDSTR:
2424 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2425 case MONO_PATCH_INFO_LDTOKEN:
2426 case MONO_PATCH_INFO_DECLSEC:
2427 if ((ji1->data.token->image != ji2->data.token->image) ||
2428 (ji1->data.token->token != ji2->data.token->token) ||
2429 (ji1->data.token->has_context != ji2->data.token->has_context) ||
2430 (ji1->data.token->context.class_inst != ji2->data.token->context.class_inst) ||
2431 (ji1->data.token->context.method_inst != ji2->data.token->context.method_inst))
2432 return 0;
2433 break;
2434 default:
2435 if (ji1->data.target != ji2->data.target)
2436 return 0;
2437 break;
2438 }
2439
2440 return 1;
2441 }
2442
2443 gpointer
2444 mono_resolve_patch_target (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *patch_info, gboolean run_cctors)
2445 {
2446 unsigned char *ip = patch_info->ip.i + code;
2447 gconstpointer target = NULL;
2448
2449 switch (patch_info->type) {
2450 case MONO_PATCH_INFO_BB:
2451 g_assert (patch_info->data.bb->native_offset);
2452 target = patch_info->data.bb->native_offset + code;
2453 break;
2454 case MONO_PATCH_INFO_ABS:
2455 target = patch_info->data.target;
2456 break;
2457 case MONO_PATCH_INFO_LABEL:
2458 target = patch_info->data.inst->inst_c0 + code;
2459 break;
2460 case MONO_PATCH_INFO_IP:
2461 target = ip;
2462 break;
2463 case MONO_PATCH_INFO_METHOD_REL:
2464 target = code + patch_info->data.offset;
2465 break;
2466 case MONO_PATCH_INFO_INTERNAL_METHOD: {
2467 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
2468 if (!mi) {
2469 g_warning ("unknown MONO_PATCH_INFO_INTERNAL_METHOD %s", patch_info->data.name);
2470 g_assert_not_reached ();
2471 }
2472 target = mono_icall_get_wrapper (mi);
2473 break;
2474 }
2475 case MONO_PATCH_INFO_METHOD_JUMP:
2476 target = mono_create_jump_trampoline (domain, patch_info->data.method, FALSE);
2477 break;
2478 case MONO_PATCH_INFO_METHOD:
2479 if (patch_info->data.method == method) {
2480 target = code;
2481 } else {
2482 /* get the trampoline to the method from the domain */
2483 if (method && method->wrapper_type == MONO_WRAPPER_STATIC_RGCTX_INVOKE) {
2484 target = mono_create_jit_trampoline_in_domain (mono_domain_get (),
2485 patch_info->data.method);
2486 } else {
2487 target = mono_create_jit_trampoline (patch_info->data.method);
2488 }
2489 }
2490 break;
2491 case MONO_PATCH_INFO_SWITCH: {
2492 gpointer *jump_table;
2493 int i;
2494
2495 if (method && method->dynamic) {
2496 jump_table = mono_code_manager_reserve (mono_dynamic_code_hash_lookup (domain, method)->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2497 } else {
2498 if (mono_aot_only) {
2499 jump_table = mono_domain_alloc (domain, sizeof (gpointer) * patch_info->data.table->table_size);
2500 } else {
2501 jump_table = mono_domain_code_reserve (domain, sizeof (gpointer) * patch_info->data.table->table_size);
2502 }
2503 }
2504
2505 for (i = 0; i < patch_info->data.table->table_size; i++)
2506 jump_table [i] = code + GPOINTER_TO_INT (patch_info->data.table->table [i]);
2507 target = jump_table;
2508 break;
2509 }
2510 case MONO_PATCH_INFO_METHODCONST:
2511 case MONO_PATCH_INFO_CLASS:
2512 case MONO_PATCH_INFO_IMAGE:
2513 case MONO_PATCH_INFO_FIELD:
2514 target = patch_info->data.target;
2515 break;
2516 case MONO_PATCH_INFO_IID:
2517 mono_class_init (patch_info->data.klass);
2518 target = GINT_TO_POINTER ((int)patch_info->data.klass->interface_id);
2519 break;
2520 case MONO_PATCH_INFO_ADJUSTED_IID:
2521 mono_class_init (patch_info->data.klass);
2522 target = GINT_TO_POINTER ((int)(-((patch_info->data.klass->interface_id + 1) * SIZEOF_VOID_P)));
2523 break;
2524 case MONO_PATCH_INFO_VTABLE:
2525 target = mono_class_vtable (domain, patch_info->data.klass);
2526 g_assert (target);
2527 break;
2528 case MONO_PATCH_INFO_CLASS_INIT: {
2529 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.klass);
2530
2531 g_assert (vtable);
2532 target = mono_create_class_init_trampoline (vtable);
2533 break;
2534 }
2535 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
2536 target = mono_create_delegate_trampoline (patch_info->data.klass);
2537 break;
2538 case MONO_PATCH_INFO_SFLDA: {
2539 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.field->parent);
2540
2541 g_assert (vtable);
2542 if (!vtable->initialized && !(vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) && (method && mono_class_needs_cctor_run (vtable->klass, method)))
2543 /* Done by the generated code */
2544 ;
2545 else {
2546 if (run_cctors)
2547 mono_runtime_class_init (vtable);
2548 }
2549 target = (char*)vtable->data + patch_info->data.field->offset;
2550 break;
2551 }
2552 case MONO_PATCH_INFO_RVA: {
2553 guint32 field_index = mono_metadata_token_index (patch_info->data.token->token);
2554 guint32 rva;
2555
2556 mono_metadata_field_info (patch_info->data.token->image, field_index - 1, NULL, &rva, NULL);
2557 target = mono_image_rva_map (patch_info->data.token->image, rva);
2558 break;
2559 }
2560 case MONO_PATCH_INFO_R4:
2561 case MONO_PATCH_INFO_R8:
2562 target = patch_info->data.target;
2563 break;
2564 case MONO_PATCH_INFO_EXC_NAME:
2565 target = patch_info->data.name;
2566 break;
2567 case MONO_PATCH_INFO_LDSTR:
2568 target =
2569 mono_ldstr (domain, patch_info->data.token->image,
2570 mono_metadata_token_index (patch_info->data.token->token));
2571 break;
2572 case MONO_PATCH_INFO_TYPE_FROM_HANDLE: {
2573 gpointer handle;
2574 MonoClass *handle_class;
2575
2576 handle = mono_ldtoken (patch_info->data.token->image,
2577 patch_info->data.token->token, &handle_class, patch_info->data.token->has_context ? &patch_info->data.token->context : NULL);
2578 mono_class_init (handle_class);
2579 mono_class_init (mono_class_from_mono_type (handle));
2580
2581 target =
2582 mono_type_get_object (domain, handle);
2583 break;
2584 }
2585 case MONO_PATCH_INFO_LDTOKEN: {
2586 gpointer handle;
2587 MonoClass *handle_class;
2588
2589 handle = mono_ldtoken (patch_info->data.token->image,
2590 patch_info->data.token->token, &handle_class, NULL);
2591 mono_class_init (handle_class);
2592
2593 target = handle;
2594 break;
2595 }
2596 case MONO_PATCH_INFO_DECLSEC:
2597 target = (mono_metadata_blob_heap (patch_info->data.token->image, patch_info->data.token->token) + 2);
2598 break;
2599 case MONO_PATCH_INFO_ICALL_ADDR:
2600 /* run_cctors == 0 -> AOT */
2601 if (patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
2602 if (run_cctors) {
2603 target = mono_lookup_pinvoke_call (patch_info->data.method, NULL, NULL);
2604 if (!target)
2605 g_error ("Unable to resolve pinvoke method '%s' Re-run with MONO_LOG_LEVEL=debug for more information.\n", mono_method_full_name (patch_info->data.method, TRUE));
2606 } else {
2607 target = NULL;
2608 }
2609 } else {
2610 target = mono_lookup_internal_call (patch_info->data.method);
2611
2612 if (!target && run_cctors)
2613 g_error ("Unregistered icall '%s'\n", mono_method_full_name (patch_info->data.method, TRUE));
2614 }
2615 break;
2616 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
2617 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
2618 if (!mi) {
2619 g_warning ("unknown MONO_PATCH_INFO_JIT_ICALL_ADDR %s", patch_info->data.name);
2620 g_assert_not_reached ();
2621 }
2622 target = mi->func;
2623 break;
2624 }
2625 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
2626 target = mono_thread_interruption_request_flag ();
2627 break;
2628 case MONO_PATCH_INFO_METHOD_RGCTX:
2629 target = mono_method_lookup_rgctx (mono_class_vtable (domain, patch_info->data.method->klass), mini_method_get_context (patch_info->data.method)->method_inst);
2630 break;
2631 case MONO_PATCH_INFO_BB_OVF:
2632 case MONO_PATCH_INFO_EXC_OVF:
2633 case MONO_PATCH_INFO_GOT_OFFSET:
2634 case MONO_PATCH_INFO_NONE:
2635 break;
2636 case MONO_PATCH_INFO_RGCTX_FETCH: {
2637 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
2638 guint32 slot = -1;
2639
2640 switch (entry->data->type) {
2641 case MONO_PATCH_INFO_CLASS:
2642 slot = mono_method_lookup_or_register_other_info (entry->method, entry->in_mrgctx, &entry->data->data.klass->byval_arg, entry->info_type, mono_method_get_context (entry->method));
2643 break;
2644 case MONO_PATCH_INFO_METHOD:
2645 case MONO_PATCH_INFO_METHODCONST:
2646 slot = mono_method_lookup_or_register_other_info (entry->method, entry->in_mrgctx, entry->data->data.method, entry->info_type, mono_method_get_context (entry->method));
2647 break;
2648 case MONO_PATCH_INFO_FIELD:
2649 slot = mono_method_lookup_or_register_other_info (entry->method, entry->in_mrgctx, entry->data->data.field, entry->info_type, mono_method_get_context (entry->method));
2650 break;
2651 default:
2652 g_assert_not_reached ();
2653 break;
2654 }
2655
2656 target = mono_create_rgctx_lazy_fetch_trampoline (slot);
2657 break;
2658 }
2659 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
2660 target = mono_create_generic_class_init_trampoline ();
2661 break;
2662 case MONO_PATCH_INFO_MONITOR_ENTER:
2663 target = mono_create_monitor_enter_trampoline ();
2664 break;
2665 case MONO_PATCH_INFO_MONITOR_EXIT:
2666 target = mono_create_monitor_exit_trampoline ();
2667 break;
2668 default:
2669 g_assert_not_reached ();
2670 }
2671
2672 return (gpointer)target;
2673 }
2674
2675 static void
2676 mono_compile_create_vars (MonoCompile *cfg)
2677 {
2678 MonoMethodSignature *sig;
2679 MonoMethodHeader *header;
2680 int i;
2681
2682 header = mono_method_get_header (cfg->method);
2683
2684 sig = mono_method_signature (cfg->method);
2685
2686 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2687 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2688 /* Inhibit optimizations */
2689 cfg->ret->flags |= MONO_INST_VOLATILE;
2690 }
2691 if (cfg->verbose_level > 2)
2692 g_print ("creating vars\n");
2693
2694 cfg->args = mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2695
2696 if (sig->hasthis)
2697 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2698
2699 for (i = 0; i < sig->param_count; ++i) {
2700 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2701 }
2702
2703 if (cfg->verbose_level > 2) {
2704 if (cfg->ret) {
2705 printf ("\treturn : ");
2706 mono_print_ins (cfg->ret);
2707 }
2708
2709 if (sig->hasthis) {
2710 printf ("\tthis: ");
2711 mono_print_ins (cfg->args [0]);
2712 }
2713
2714 for (i = 0; i < sig->param_count; ++i) {
2715 printf ("\targ [%d]: ", i);
2716 mono_print_ins (cfg->args [i + sig->hasthis]);
2717 }
2718 }
2719
2720 cfg->locals_start = cfg->num_varinfo;
2721 cfg->locals = mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2722
2723 if (cfg->verbose_level > 2)
2724 g_print ("creating locals\n");
2725
2726 for (i = 0; i < header->num_locals; ++i)
2727 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2728
2729 if (cfg->verbose_level > 2)
2730 g_print ("locals done\n");
2731
2732 mono_arch_create_vars (cfg);
2733 }
2734
2735 void
2736 mono_print_code (MonoCompile *cfg, const char* msg)
2737 {
2738 MonoBasicBlock *bb;
2739
2740 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2741 mono_print_bb (bb, msg);
2742 }
2743
2744 #ifndef DISABLE_JIT
2745
2746 void
2747 mono_codegen (MonoCompile *cfg)
2748 {
2749 MonoJumpInfo *patch_info;
2750 MonoBasicBlock *bb;
2751 int i, max_epilog_size;
2752 guint8 *code;
2753
2754 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2755 cfg->spill_count = 0;
2756 /* we reuse dfn here */
2757 /* bb->dfn = bb_count++; */
2758
2759 mono_arch_lowering_pass (cfg, bb);
2760
2761 if (cfg->opt & MONO_OPT_PEEPHOLE)
2762 mono_arch_peephole_pass_1 (cfg, bb);
2763
2764 if (!cfg->globalra)
2765 mono_local_regalloc (cfg, bb);
2766
2767 if (cfg->opt & MONO_OPT_PEEPHOLE)
2768 mono_arch_peephole_pass_2 (cfg, bb);
2769 }
2770
2771 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
2772 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
2773
2774 code = mono_arch_emit_prolog (cfg);
2775
2776 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
2777 code = mono_arch_instrument_prolog (cfg, mono_profiler_method_enter, code, FALSE);
2778
2779 cfg->code_len = code - cfg->native_code;
2780 cfg->prolog_end = cfg->code_len;
2781
2782 mono_debug_open_method (cfg);
2783
2784 /* emit code all basic blocks */
2785 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2786 bb->native_offset = cfg->code_len;
2787 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
2788 mono_arch_output_basic_block (cfg, bb);
2789
2790 if (bb == cfg->bb_exit) {
2791 cfg->epilog_begin = cfg->code_len;
2792
2793 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE) {
2794 code = cfg->native_code + cfg->code_len;
2795 code = mono_arch_instrument_epilog (cfg, mono_profiler_method_leave, code, FALSE);
2796 cfg->code_len = code - cfg->native_code;
2797 g_assert (cfg->code_len < cfg->code_size);
2798 }
2799
2800 mono_arch_emit_epilog (cfg);
2801 }
2802 }
2803
2804 mono_arch_emit_exceptions (cfg);
2805
2806 max_epilog_size = 0;
2807
2808 code = cfg->native_code + cfg->code_len;
2809
2810 /* we always allocate code in cfg->domain->code_mp to increase locality */
2811 cfg->code_size = cfg->code_len + max_epilog_size;
2812 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
2813
2814 if (cfg->method->dynamic) {
2815 guint unwindlen = 0;
2816 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2817 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2818 #endif
2819 /* Allocate the code into a separate memory pool so it can be freed */
2820 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
2821 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
2822 mono_domain_lock (cfg->domain);
2823 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
2824 mono_domain_unlock (cfg->domain);
2825
2826 code = mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + unwindlen);
2827 } else {
2828 guint unwindlen = 0;
2829 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2830 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2831 #endif
2832 code = mono_domain_code_reserve (cfg->domain, cfg->code_size + unwindlen);
2833 }
2834
2835 memcpy (code, cfg->native_code, cfg->code_len);
2836 g_free (cfg->native_code);
2837 cfg->native_code = code;
2838 code = cfg->native_code + cfg->code_len;
2839
2840 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
2841 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2842 switch (patch_info->type) {
2843 case MONO_PATCH_INFO_ABS: {
2844 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
2845
2846 /*
2847 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
2848 * absolute address.
2849 */
2850 if (info) {
2851 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
2852 // FIXME: CLEAN UP THIS MESS.
2853 if ((cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) &&
2854 strstr (cfg->method->name, info->name)) {
2855 /*
2856 * This is an icall wrapper, and this is a call to the
2857 * wrapped function.
2858 */
2859 if (cfg->compile_aot) {
2860 patch_info->type = MONO_PATCH_INFO_JIT_ICALL_ADDR;
2861 patch_info->data.name = info->name;
2862 }
2863 } else {
2864 /* for these array methods we currently register the same function pointer
2865 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
2866 * will return the incorrect one depending on the order they are registered.
2867 * See tests/test-arr.cs
2868 */
2869 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
2870 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2871 patch_info->data.name = info->name;
2872 }
2873 }
2874 }
2875
2876 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2877 if (cfg->abs_patches) {
2878 MonoJumpInfo *abs_ji = g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
2879 if (abs_ji) {
2880 patch_info->type = abs_ji->type;
2881 patch_info->data.target = abs_ji->data.target;
2882 }
2883 }
2884 }
2885
2886 break;
2887 }
2888 case MONO_PATCH_INFO_SWITCH: {
2889 gpointer *table;
2890 if (cfg->method->dynamic) {
2891 table = mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2892 } else {
2893 table = mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
2894 }
2895
2896 for (i = 0; i < patch_info->data.table->table_size; i++) {
2897 /* Might be NULL if the switch is eliminated */
2898 if (patch_info->data.table->table [i]) {
2899 g_assert (patch_info->data.table->table [i]->native_offset);
2900 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
2901 } else {
2902 table [i] = NULL;
2903 }
2904 }
2905 patch_info->data.table->table = (MonoBasicBlock**)table;
2906 break;
2907 }
2908 case MONO_PATCH_INFO_METHOD_JUMP: {
2909 GSList *list;
2910 MonoDomain *domain = cfg->domain;
2911 unsigned char *ip = cfg->native_code + patch_info->ip.i;
2912
2913 mono_domain_lock (domain);
2914 if (!domain_jit_info (domain)->jump_target_hash)
2915 domain_jit_info (domain)->jump_target_hash = g_hash_table_new (NULL, NULL);
2916 list = g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
2917 list = g_slist_prepend (list, ip);
2918 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, list);
2919 mono_domain_unlock (domain);
2920 break;
2921 }
2922 default:
2923 /* do nothing */
2924 break;
2925 }
2926 }
2927
2928 #ifdef VALGRIND_JIT_REGISTER_MAP
2929 if (valgrind_register){
2930 char* nm = mono_method_full_name (cfg->method, TRUE);
2931 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
2932 g_free (nm);
2933 }
2934 #endif
2935
2936 if (cfg->verbose_level > 0) {
2937 char* nm = mono_method_full_name (cfg->method, TRUE);
2938 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
2939 nm,
2940 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
2941 g_free (nm);
2942 }
2943
2944 {
2945 gboolean is_generic = FALSE;
2946
2947 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
2948 cfg->method->klass->generic_container || cfg->method->klass->generic_class) {
2949 is_generic = TRUE;
2950 }
2951
2952 if (cfg->generic_sharing_context)
2953 g_assert (is_generic);
2954 }
2955
2956 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
2957 mono_arch_save_unwind_info (cfg);
2958 #endif
2959
2960 mono_arch_patch_code (cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors);
2961
2962 if (cfg->method->dynamic) {
2963 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
2964 } else {
2965 mono_domain_code_commit (cfg->domain, cfg->native_code, cfg->code_size, cfg->code_len);
2966 }
2967
2968 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
2969
2970 mono_debug_close_method (cfg);
2971 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2972 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
2973 #endif
2974 }
2975
2976 static void
2977 compute_reachable (MonoBasicBlock *bb)
2978 {
2979 int i;
2980
2981 if (!(bb->flags & BB_VISITED)) {
2982 bb->flags |= BB_VISITED;
2983 for (i = 0; i < bb->out_count; ++i)
2984 compute_reachable (bb->out_bb [i]);
2985 }
2986 }
2987
2988 /*
2989 * mini_method_compile:
2990 * @method: the method to compile
2991 * @opts: the optimization flags to use
2992 * @domain: the domain where the method will be compiled in
2993 * @run_cctors: whether we should run type ctors if possible
2994 * @compile_aot: whether this is an AOT compilation
2995 * @parts: debug flag
2996 *
2997 * Returns: a MonoCompile* pointer. Caller must check the exception_type
2998 * field in the returned struct to see if compilation succeded.
2999 */
3000 MonoCompile*
3001 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
3002 {
3003 MonoMethodHeader *header;
3004 guint8 *ip;
3005 MonoCompile *cfg;
3006 MonoJitInfo *jinfo;
3007 int dfn, i, code_size_ratio;
3008 gboolean deadce_has_run = FALSE;
3009 gboolean try_generic_shared;
3010 MonoMethod *method_to_compile, *method_to_register;
3011 int generic_info_size;
3012
3013 mono_jit_stats.methods_compiled++;
3014 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3015 mono_profiler_method_jit (method);
3016 if (MONO_PROBE_METHOD_COMPILE_BEGIN_ENABLED ())
3017 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3018
3019 if (compile_aot)
3020 /* We are passed the original generic method definition */
3021 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3022 (opts & MONO_OPT_GSHARED) && (method->is_generic || method->klass->generic_container);
3023 else
3024 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3025 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable_impl (method, FALSE);
3026
3027 if (opts & MONO_OPT_GSHARED) {
3028 if (try_generic_shared)
3029 mono_stats.generics_sharable_methods++;
3030 else if (mono_method_is_generic_impl (method))
3031 mono_stats.generics_unsharable_methods++;
3032 }
3033
3034 restart_compile:
3035 if (try_generic_shared) {
3036 MonoMethod *declaring_method;
3037 MonoGenericContext *shared_context;
3038
3039 if (compile_aot) {
3040 declaring_method = method;
3041 } else {
3042 declaring_method = mono_method_get_declaring_generic_method (method);
3043 if (method->klass->generic_class)
3044 g_assert (method->klass->generic_class->container_class == declaring_method->klass);
3045 else
3046 g_assert (method->klass == declaring_method->klass);
3047 }
3048
3049 if (declaring_method->is_generic)
3050 shared_context = &(mono_method_get_generic_container (declaring_method)->context);
3051 else
3052 shared_context = &declaring_method->klass->generic_container->context;
3053
3054 method_to_compile = mono_class_inflate_generic_method (declaring_method, shared_context);
3055 g_assert (method_to_compile);
3056 } else {
3057 method_to_compile = method;
3058 }
3059
3060 cfg = g_new0 (MonoCompile, 1);
3061 cfg->method = method_to_compile;
3062 cfg->mempool = mono_mempool_new ();
3063 cfg->opt = opts;
3064 cfg->prof_options = mono_profiler_get_events ();
3065 cfg->run_cctors = run_cctors;
3066 cfg->domain = domain;
3067 cfg->verbose_level = mini_verbose;
3068 cfg->compile_aot = compile_aot;
3069 cfg->skip_visibility = method->skip_visibility;
3070 cfg->orig_method = method;
3071 if (try_generic_shared)
3072 cfg->generic_sharing_context = (MonoGenericSharingContext*)&cfg->generic_sharing_context;
3073 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3074
3075 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || method->klass->generic_container)) {
3076 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3077 return cfg;
3078 }
3079
3080 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3081 if (mono_debug_using_mono_debugger () || debug_options.mdb_optimizations) {
3082 cfg->disable_reuse_registers = TRUE;
3083 cfg->disable_reuse_stack_slots = TRUE;
3084 /*
3085 * This decreases the change the debugger will read registers/stack slots which are
3086 * not yet initialized.
3087 */
3088 cfg->disable_initlocals_opt = TRUE;
3089
3090 /* Temporarily disable this when running in the debugger until we have support
3091 * for this in the debugger. */
3092 cfg->disable_omit_fp = TRUE;
3093
3094 /* The debugger needs all locals to be on the stack or in a global register */
3095 cfg->disable_vreg_to_lvreg = TRUE;
3096
3097 /* Don't remove unused variables when running inside the debugger since the user
3098 * may still want to view them. */
3099 cfg->disable_deadce_vars = TRUE;
3100
3101 // cfg->opt |= MONO_OPT_SHARED;
3102 cfg->opt &= ~MONO_OPT_DEADCE;
3103 cfg->opt &= ~MONO_OPT_INLINE;
3104 cfg->opt &= ~MONO_OPT_COPYPROP;
3105 cfg->opt &= ~MONO_OPT_CONSPROP;
3106 cfg->opt &= ~MONO_OPT_GSHARED;
3107 }
3108
3109 header = mono_method_get_header (method_to_compile);
3110 if (!header) {
3111 cfg->exception_type = MONO_EXCEPTION_INVALID_PROGRAM;
3112 cfg->exception_message = g_strdup_printf ("Missing or incorrect header for method %s", cfg->method->name);
3113 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
3114 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3115 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
3116 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
3117 return cfg;
3118 }
3119
3120 if (getenv ("MONO_VERBOSE_METHOD")) {
3121 if (strcmp (cfg->method->name, getenv ("MONO_VERBOSE_METHOD")) == 0)
3122 cfg->verbose_level = 4;
3123 }
3124
3125 ip = (guint8 *)header->code;
3126
3127 cfg->intvars = mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3128
3129 if (cfg->verbose_level > 2) {
3130 if (cfg->generic_sharing_context)
3131 g_print ("converting shared method %s\n", mono_method_full_name (method, TRUE));
3132 else
3133 g_print ("converting method %s\n", mono_method_full_name (method, TRUE));
3134 }
3135
3136 if (cfg->opt & (MONO_OPT_ABCREM | MONO_OPT_SSAPRE))
3137 cfg->opt |= MONO_OPT_SSA;
3138
3139 /*
3140 if ((cfg->method->klass->image != mono_defaults.corlib) || (strstr (cfg->method->klass->name, "StackOverflowException") && strstr (cfg->method->name, ".ctor")) || (strstr (cfg->method->klass->name, "OutOfMemoryException") && strstr (cfg->method->name, ".ctor")))
3141 cfg->globalra = TRUE;
3142 */
3143
3144 //cfg->globalra = TRUE;
3145
3146 //if (!strcmp (cfg->method->klass->name, "Tests") && !cfg->method->wrapper_type)
3147 // cfg->globalra = TRUE;
3148
3149 {
3150 static int count = 0;
3151 count ++;
3152
3153 /*
3154 if (getenv ("COUNT2")) {
3155 cfg->globalra = TRUE;
3156 if (count == atoi (getenv ("COUNT2")))
3157 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
3158 if (count > atoi (getenv ("COUNT2")))
3159 cfg->globalra = FALSE;
3160 }
3161 */
3162 }
3163
3164 if (header->clauses)
3165 cfg->globalra = FALSE;
3166
3167 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED)
3168 /* The code in the prolog clobbers caller saved registers */
3169 cfg->globalra = FALSE;
3170
3171 // FIXME: Disable globalra in case of tracing/profiling
3172
3173 if (cfg->method->save_lmf)
3174 /* The LMF saving code might clobber caller saved registers */
3175 cfg->globalra = FALSE;
3176
3177 if (header->code_size > 5000)
3178 // FIXME:
3179 /* Too large bblocks could overflow the ins positions */
3180 cfg->globalra = FALSE;
3181
3182 cfg->rs = mono_regstate_new ();
3183 if (cfg->globalra)
3184 cfg->rs->next_vreg = MONO_MAX_IREGS + MONO_MAX_FREGS;
3185 cfg->next_vreg = cfg->rs->next_vreg;
3186
3187 /* FIXME: Fix SSA to handle branches inside bblocks */
3188 if (cfg->opt & MONO_OPT_SSA)
3189 cfg->enable_extended_bblocks = FALSE;
3190
3191 /*
3192 * FIXME: This confuses liveness analysis because variables which are assigned after
3193 * a branch inside a bblock become part of the kill set, even though the assignment
3194 * might not get executed. This causes the optimize_initlocals pass to delete some
3195 * assignments which are needed.
3196 * Also, the mono_if_conversion pass needs to be modified to recognize the code
3197 * created by this.
3198 */
3199 //cfg->enable_extended_bblocks = TRUE;
3200
3201 /*
3202 * create MonoInst* which represents arguments and local variables
3203 */
3204 mono_compile_create_vars (cfg);
3205
3206 /* SSAPRE is not supported on linear IR */
3207 cfg->opt &= ~MONO_OPT_SSAPRE;
3208
3209 i = mono_method_to_ir (cfg, method_to_compile, NULL, NULL, NULL, NULL, NULL, 0, FALSE);
3210
3211 if (i < 0) {
3212 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3213 if (compile_aot) {
3214 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
3215 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3216 return cfg;
3217 }
3218 mono_destroy_compile (cfg);
3219 try_generic_shared = FALSE;
3220 goto restart_compile;
3221 }
3222 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
3223
3224 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
3225 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3226 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
3227 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
3228 /* cfg contains the details of the failure, so let the caller cleanup */
3229 return cfg;
3230 }
3231
3232 mono_jit_stats.basic_blocks += cfg->num_bblocks;
3233 mono_jit_stats.max_basic_blocks = MAX (cfg->num_bblocks, mono_jit_stats.max_basic_blocks);
3234
3235 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
3236
3237 mono_decompose_long_opts (cfg);
3238
3239 /* Should be done before branch opts */
3240 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP))
3241 mono_local_cprop (cfg);
3242
3243 if (cfg->opt & MONO_OPT_BRANCH)
3244 mono_optimize_branches (cfg);
3245
3246 /* This must be done _before_ global reg alloc and _after_ decompose */
3247 mono_handle_global_vregs (cfg);
3248 if (cfg->opt & MONO_OPT_DEADCE)
3249 mono_local_deadce (cfg);
3250 mono_if_conversion (cfg);
3251
3252 if ((cfg->opt & MONO_OPT_SSAPRE) || cfg->globalra)
3253 mono_remove_critical_edges (cfg);
3254
3255 /* Depth-first ordering on basic blocks */
3256 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
3257
3258 dfn = 0;
3259 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
3260 if (cfg->num_bblocks != dfn + 1) {
3261 MonoBasicBlock *bb;
3262
3263 cfg->num_bblocks = dfn + 1;
3264
3265 /* remove unreachable code, because the code in them may be
3266 * inconsistent (access to dead variables for example) */
3267 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3268 bb->flags &= ~BB_VISITED;
3269 compute_reachable (cfg->bb_entry);
3270 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3271 if (bb->flags & BB_EXCEPTION_HANDLER)
3272 compute_reachable (bb);
3273 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3274 if (!(bb->flags & BB_VISITED)) {
3275 if (cfg->verbose_level > 1)
3276 g_print ("found unreachable code in BB%d\n", bb->block_num);
3277 bb->code = bb->last_ins = NULL;
3278 }
3279 }
3280 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3281 bb->flags &= ~BB_VISITED;
3282 }
3283
3284 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
3285 /*
3286 * we disable some optimizations if there are too many variables
3287 * because JIT time may become too expensive. The actual number needs
3288 * to be tweaked and eventually the non-linear algorithms should be fixed.
3289 */
3290 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
3291 cfg->disable_ssa = TRUE;
3292 }
3293
3294 if (cfg->opt & MONO_OPT_LOOP) {
3295 mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM);
3296 mono_compute_natural_loops (cfg);
3297 }
3298
3299 /* after method_to_ir */
3300 if (parts == 1) {
3301 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
3302 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3303 return cfg;
3304 }
3305
3306 //#define DEBUGSSA "logic_run"
3307 #define DEBUGSSA_CLASS "Tests"
3308 #ifdef DEBUGSSA
3309
3310 if (!header->num_clauses && !cfg->disable_ssa) {
3311 mono_local_cprop (cfg);
3312
3313 #ifndef DISABLE_SSA
3314 mono_ssa_compute (cfg);
3315 #endif
3316 }
3317 #else
3318 if (cfg->opt & MONO_OPT_SSA) {
3319 if (!(cfg->comp_done & MONO_COMP_SSA) && !header->num_clauses && !cfg->disable_ssa) {
3320 #ifndef DISABLE_SSA
3321 mono_ssa_compute (cfg);
3322 #endif
3323
3324 if (cfg->verbose_level >= 2) {
3325 print_dfn (cfg);
3326 }
3327 }
3328 }
3329 #endif
3330
3331 /* after SSA translation */
3332 if (parts == 2) {
3333 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
3334 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3335 return cfg;
3336 }
3337
3338 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
3339 if (cfg->comp_done & MONO_COMP_SSA) {
3340 #ifndef DISABLE_SSA
3341 mono_ssa_cprop (cfg);
3342 #endif
3343 }
3344 }
3345
3346 #ifndef DISABLE_SSA
3347 if (cfg->comp_done & MONO_COMP_SSA) {
3348 //mono_ssa_strength_reduction (cfg);
3349
3350 if (cfg->opt & MONO_OPT_SSAPRE) {
3351 mono_perform_ssapre (cfg);
3352 //mono_local_cprop (cfg);
3353 }
3354
3355 if (cfg->opt & MONO_OPT_DEADCE) {
3356 mono_ssa_deadce (cfg);
3357 deadce_has_run = TRUE;
3358 }
3359
3360 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM))
3361 mono_perform_abc_removal (cfg);
3362
3363 mono_ssa_remove (cfg);
3364 mono_local_cprop (cfg);
3365 mono_handle_global_vregs (cfg);
3366 if (cfg->opt & MONO_OPT_DEADCE)
3367 mono_local_deadce (cfg);
3368
3369 if (cfg->opt & MONO_OPT_BRANCH) {
3370 MonoBasicBlock *bb;
3371
3372 mono_optimize_branches (cfg);
3373
3374 /* Have to recompute cfg->bblocks and bb->dfn */
3375 if (cfg->globalra) {
3376 mono_remove_critical_edges (cfg);
3377
3378 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3379 bb->dfn = 0;
3380
3381 /* Depth-first ordering on basic blocks */
3382 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
3383
3384 dfn = 0;
3385 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
3386 cfg->num_bblocks = dfn + 1;
3387 }
3388 }
3389 }
3390 #endif
3391
3392 /* after SSA removal */
3393 if (parts == 3) {
3394 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
3395 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3396 return cfg;
3397 }
3398
3399 #ifdef MONO_ARCH_SOFT_FLOAT
3400 mono_decompose_soft_float (cfg);
3401 #endif
3402 mono_decompose_vtype_opts (cfg);
3403 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3404 mono_decompose_array_access_opts (cfg);
3405
3406 if (cfg->got_var) {
3407 GList *regs;
3408
3409 g_assert (cfg->got_var_allocated);
3410
3411 /*
3412 * Allways allocate the GOT var to a register, because keeping it
3413 * in memory will increase the number of live temporaries in some
3414 * code created by inssel.brg, leading to the well known spills+
3415 * branches problem. Testcase: mcs crash in
3416 * System.MonoCustomAttrs:GetCustomAttributes.
3417 */
3418 regs = mono_arch_get_global_int_regs (cfg);
3419 g_assert (regs);
3420 cfg->got_var->opcode = OP_REGVAR;
3421 cfg->got_var->dreg = GPOINTER_TO_INT (regs->data);
3422 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
3423
3424 g_list_free (regs);
3425 }
3426
3427 /* todo: remove code when we have verified that the liveness for try/catch blocks
3428 * works perfectly
3429 */
3430 /*
3431 * Currently, this can't be commented out since exception blocks are not
3432 * processed during liveness analysis.
3433 */
3434 mono_liveness_handle_exception_clauses (cfg);
3435
3436 if (cfg->globalra) {
3437 MonoBasicBlock *bb;
3438
3439 /* Have to do this before regalloc since it can create vregs */
3440 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3441 mono_arch_lowering_pass (cfg, bb);
3442
3443 mono_global_regalloc (cfg);
3444 }
3445
3446 if ((cfg->opt & MONO_OPT_LINEARS) && !cfg->globalra) {
3447 GList *vars, *regs;
3448
3449 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
3450 cfg->comp_done &= ~MONO_COMP_LIVENESS;
3451 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
3452 mono_analyze_liveness (cfg);
3453
3454 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
3455 regs = mono_arch_get_global_int_regs (cfg);
3456 if (cfg->got_var)
3457 regs = g_list_delete_link (regs, regs);
3458 mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs);
3459 }
3460 }
3461
3462 //mono_print_code (cfg);
3463
3464 //print_dfn (cfg);
3465
3466 /* variables are allocated after decompose, since decompose could create temps */
3467 if (!cfg->globalra)
3468 mono_arch_allocate_vars (cfg);
3469
3470 {
3471 MonoBasicBlock *bb;
3472 gboolean need_local_opts;
3473
3474 if (!cfg->globalra) {
3475 mono_spill_global_vars (cfg, &need_local_opts);
3476
3477 if (need_local_opts || cfg->compile_aot) {
3478 /* To optimize code created by spill_global_vars */
3479 mono_local_cprop (cfg);
3480 if (cfg->opt & MONO_OPT_DEADCE)
3481 mono_local_deadce (cfg);
3482 }
3483 }
3484
3485 /* Add branches between non-consecutive bblocks */
3486 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3487 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
3488 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
3489 /* we are careful when inverting, since bugs like #59580
3490 * could show up when dealing with NaNs.
3491 */
3492 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
3493 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
3494 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
3495 bb->last_ins->inst_false_bb = tmp;
3496
3497 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
3498 } else {
3499 MonoInst *inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
3500 inst->opcode = OP_BR;
3501 inst->inst_target_bb = bb->last_ins->inst_false_bb;
3502 mono_bblock_add_inst (bb, inst);
3503 }
3504 }
3505 }
3506
3507 if (cfg->verbose_level >= 4 && !cfg->globalra) {
3508 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3509 MonoInst *tree = bb->code;
3510 g_print ("DUMP BLOCK %d:\n", bb->block_num);
3511 if (!tree)
3512 continue;
3513 for (; tree; tree = tree->next) {
3514 mono_print_ins_index (-1, tree);
3515 }
3516 }
3517 }
3518
3519 /* FIXME: */
3520 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3521 bb->max_vreg = cfg->next_vreg;
3522 }
3523 }
3524
3525 mono_codegen (cfg);
3526 if (cfg->verbose_level >= 2) {
3527 char *id = mono_method_full_name (cfg->method, FALSE);
3528 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
3529 g_free (id);
3530 }
3531
3532 if (cfg->generic_sharing_context)
3533 generic_info_size = sizeof (MonoGenericJitInfo);
3534 else
3535 generic_info_size = 0;
3536
3537 if (cfg->method->dynamic) {
3538 jinfo = g_malloc0 (sizeof (MonoJitInfo) + (header->num_clauses * sizeof (MonoJitExceptionInfo)) +
3539 generic_info_size);
3540 } else {
3541 jinfo = mono_domain_alloc0 (cfg->domain, sizeof (MonoJitInfo) +
3542 (header->num_clauses * sizeof (MonoJitExceptionInfo)) +
3543 generic_info_size);
3544 }
3545
3546 if (cfg->generic_sharing_context) {
3547 MonoGenericContext object_context = mono_method_construct_object_context (method_to_compile);
3548
3549 method_to_register = mono_class_inflate_generic_method (method_to_compile, &object_context);
3550 } else {
3551 g_assert (method == method_to_compile);
3552 method_to_register = method;
3553 }
3554
3555 jinfo->method = method_to_register;
3556 jinfo->code_start = cfg->native_code;
3557 jinfo->code_size = cfg->code_len;
3558 jinfo->used_regs = cfg->used_int_regs;
3559 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
3560 jinfo->cas_inited = FALSE; /* initialization delayed at the first stalk walk using this method */
3561 jinfo->num_clauses = header->num_clauses;
3562
3563 if (cfg->generic_sharing_context) {
3564 MonoInst *inst;
3565 MonoGenericJitInfo *gi;
3566
3567 jinfo->has_generic_jit_info = 1;
3568
3569 gi = mono_jit_info_get_generic_jit_info (jinfo);
3570 g_assert (gi);
3571
3572 gi->generic_sharing_context = cfg->generic_sharing_context;
3573
3574 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
3575 mini_method_get_context (method_to_compile)->method_inst ||
3576 method_to_compile->klass->valuetype) {
3577 g_assert (cfg->rgctx_var);
3578 }
3579
3580 gi->has_this = 1;
3581
3582 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
3583 mini_method_get_context (method_to_compile)->method_inst ||
3584 method_to_compile->klass->valuetype) {
3585 inst = cfg->rgctx_var;
3586 g_assert (inst->opcode == OP_REGOFFSET);
3587 } else {
3588 inst = cfg->args [0];
3589 }
3590
3591 if (inst->opcode == OP_REGVAR) {
3592 gi->this_in_reg = 1;
3593 gi->this_reg = inst->dreg;
3594 } else {
3595 g_assert (inst->opcode == OP_REGOFFSET);
3596 #ifdef __i386__
3597 g_assert (inst->inst_basereg == X86_EBP);
3598 #elif defined(__x86_64__)
3599 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
3600 #endif
3601 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
3602
3603 gi->this_in_reg = 0;
3604 gi->this_reg = inst->inst_basereg;
3605 gi->this_offset = inst->inst_offset;
3606 }
3607 }
3608
3609 if (header->num_clauses) {
3610 int i;
3611
3612 for (i = 0; i < header->num_clauses; i++) {
3613 MonoExceptionClause *ec = &header->clauses [i];
3614 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3615 MonoBasicBlock *tblock;
3616 MonoInst *exvar;
3617
3618 ei->flags = ec->flags;
3619
3620 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
3621 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
3622
3623 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3624 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
3625 g_assert (tblock);
3626 ei->data.filter = cfg->native_code + tblock->native_offset;
3627 } else {
3628 ei->data.catch_class = ec->data.catch_class;
3629 }
3630
3631 tblock = cfg->cil_offset_to_bb [ec->try_offset];
3632 g_assert (tblock);
3633 ei->try_start = cfg->native_code + tblock->native_offset;
3634 g_assert (tblock->native_offset);
3635 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
3636 g_assert (tblock);
3637 ei->try_end = cfg->native_code + tblock->native_offset;
3638 g_assert (tblock->native_offset);
3639 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
3640 g_assert (tblock);
3641 ei->handler_start = cfg->native_code + tblock->native_offset;
3642 }
3643 }
3644
3645 /*
3646 * Its possible to generate dwarf unwind info for xdebug etc, but not actually
3647 * using it during runtime, hence the define.
3648 */
3649 #ifdef MONO_ARCH_HAVE_XP_UNWIND
3650 if (cfg->unwind_ops) {
3651 guint32 info_len;
3652 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
3653
3654 jinfo->used_regs = mono_cache_unwind_info (unwind_info, info_len);
3655 g_free (unwind_info);
3656 }
3657 #endif
3658
3659 cfg->jit_info = jinfo;
3660 #if defined(__arm__)
3661 mono_arch_fixup_jinfo (cfg);
3662 #endif
3663
3664 mono_save_xdebug_info (cfg);
3665
3666 if (!cfg->compile_aot) {
3667 mono_domain_lock (cfg->domain);
3668 mono_jit_info_table_add (cfg->domain, jinfo);
3669
3670 if (cfg->method->dynamic)
3671 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = jinfo;
3672 mono_domain_unlock (cfg->domain);
3673 }
3674
3675 /* collect statistics */
3676 mono_perfcounters->jit_methods++;
3677 mono_perfcounters->jit_bytes += header->code_size;
3678 mono_jit_stats.allocated_code_size += cfg->code_len;
3679 code_size_ratio = cfg->code_len;
3680 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
3681 mono_jit_stats.biggest_method_size = code_size_ratio;
3682 g_free (mono_jit_stats.biggest_method);
3683 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3684 }
3685 code_size_ratio = (code_size_ratio * 100) / mono_method_get_header (method)->code_size;
3686 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
3687 mono_jit_stats.max_code_size_ratio = code_size_ratio;
3688 g_free (mono_jit_stats.max_ratio_method);
3689 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3690 }
3691 mono_jit_stats.native_code_size += cfg->code_len;
3692
3693 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
3694 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3695 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
3696 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
3697
3698 return cfg;
3699 }
3700
3701 #else
3702
3703 MonoCompile*
3704 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
3705 {
3706 g_assert_not_reached ();
3707 return NULL;
3708 }
3709
3710 #endif /* DISABLE_JIT */
3711
3712 static MonoJitInfo*
3713 lookup_generic_method (MonoDomain *domain, MonoMethod *method)
3714 {
3715 MonoMethod *open_method;
3716
3717 if (!mono_method_is_generic_sharable_impl (method, FALSE))
3718 return NULL;
3719
3720 open_method = mono_method_get_declaring_generic_method (method);
3721
3722 return mono_domain_lookup_shared_generic (domain, open_method);
3723 }
3724
3725 /*
3726 * LOCKING: Assumes domain->jit_code_hash_lock is held.
3727 */
3728 static MonoJitInfo*
3729 lookup_method_inner (MonoDomain *domain, MonoMethod *method)
3730 {
3731 MonoJitInfo *ji = mono_internal_hash_table_lookup (&domain->jit_code_hash, method);
3732
3733 if (ji)
3734 return ji;
3735
3736 return lookup_generic_method (domain, method);
3737 }
3738
3739 static MonoJitInfo*
3740 lookup_method (MonoDomain *domain, MonoMethod *method)
3741 {
3742 MonoJitInfo *info;
3743
3744 mono_loader_lock (); /*FIXME lookup_method_inner acquired it*/
3745 mono_domain_jit_code_hash_lock (domain);
3746 info = lookup_method_inner (domain, method);
3747 mono_domain_jit_code_hash_unlock (domain);
3748 mono_loader_unlock ();
3749
3750 return info;
3751 }
3752
3753 static gpointer
3754 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt)
3755 {
3756 MonoCompile *cfg;
3757 gpointer code = NULL;
3758 MonoJitInfo *info;
3759 MonoVTable *vtable;
3760
3761 #ifdef MONO_USE_AOT_COMPILER
3762 if ((opt & MONO_OPT_AOT) && !(mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)) {
3763 MonoDomain *domain = mono_domain_get ();
3764
3765 mono_class_init (method->klass);
3766
3767 if ((code = mono_aot_get_method (domain, method))) {
3768 vtable = mono_class_vtable (domain, method->klass);
3769 g_assert (vtable);
3770 mono_runtime_class_init (vtable);
3771 return code;
3772 }
3773 }
3774 #endif
3775
3776 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
3777 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
3778 MonoMethod *nm;
3779 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
3780
3781 if (!piinfo->addr) {
3782 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
3783 piinfo->addr = mono_lookup_internal_call (method);
3784 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
3785 #ifdef PLATFORM_WIN32
3786 g_warning ("Method '%s' in assembly '%s' contains native code that cannot be executed by Mono in modules loaded from byte arrays. The assembly was probably created using C++/CLI.\n", mono_method_full_name (method, TRUE), method->klass->image->name);
3787 #else
3788 g_warning ("Method '%s' in assembly '%s' contains native code that cannot be executed by Mono on this platform. The assembly was probably created using C++/CLI.\n", mono_method_full_name (method, TRUE), method->klass->image->name);
3789 #endif
3790 else
3791 mono_lookup_pinvoke_call (method, NULL, NULL);
3792 }
3793 nm = mono_marshal_get_native_wrapper (method, check_for_pending_exc, FALSE);
3794 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
3795
3796 //if (mono_debug_format != MONO_DEBUG_FORMAT_NONE)
3797 //mono_debug_add_wrapper (method, nm);
3798 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3799 const char *name = method->name;
3800 MonoMethod *nm;
3801
3802 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
3803 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
3804 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("mono_delegate_ctor");
3805 g_assert (mi);
3806 /*
3807 * We need to make sure this wrapper
3808 * is compiled because it might end up
3809 * in an (M)RGCTX if generic sharing
3810 * is enabled, and would be called
3811 * indirectly. If it were a
3812 * trampoline we'd try to patch that
3813 * indirect call, which is not
3814 * possible.
3815 */
3816 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
3817 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
3818 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
3819 return mono_create_delegate_trampoline (method->klass);
3820 #else
3821 nm = mono_marshal_get_delegate_invoke (method, NULL);
3822 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
3823 #endif
3824 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
3825 nm = mono_marshal_get_delegate_begin_invoke (method);
3826 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
3827 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
3828 nm = mono_marshal_get_delegate_end_invoke (method);
3829 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
3830 }
3831 }
3832 return NULL;
3833 }
3834
3835 if (mono_aot_only)
3836 g_error ("Attempting to JIT compile method '%s' while running with --aot-only.\n", mono_method_full_name (method, TRUE));
3837
3838 cfg = mini_method_compile (method, opt, target_domain, TRUE, FALSE, 0);
3839
3840 switch (cfg->exception_type) {
3841 case MONO_EXCEPTION_NONE:
3842 break;
3843 case MONO_EXCEPTION_TYPE_LOAD:
3844 case MONO_EXCEPTION_MISSING_FIELD:
3845 case MONO_EXCEPTION_MISSING_METHOD:
3846 case MONO_EXCEPTION_FILE_NOT_FOUND:
3847 case MONO_EXCEPTION_BAD_IMAGE: {
3848 /* Throw a type load exception if needed */
3849 MonoLoaderError *error = mono_loader_get_last_error ();
3850 MonoException *ex;
3851
3852 if (error) {
3853 ex = mono_loader_error_prepare_exception (error);
3854 } else {
3855 if (cfg->exception_ptr) {
3856 ex = mono_class_get_exception_for_failure (cfg->exception_ptr);
3857 } else {
3858 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
3859 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
3860 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
3861 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
3862 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
3863 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
3864 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
3865 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FileNotFoundException", cfg->exception_message);
3866 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
3867 ex = mono_get_exception_bad_image_format (cfg->exception_message);
3868 else
3869 g_assert_not_reached ();
3870 }
3871 }
3872 mono_destroy_compile (cfg);
3873 mono_raise_exception (ex);
3874 break;
3875 }
3876 case MONO_EXCEPTION_INVALID_PROGRAM: {
3877 MonoException *ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
3878 mono_destroy_compile (cfg);
3879 mono_raise_exception (ex);
3880 break;
3881 }
3882 case MONO_EXCEPTION_UNVERIFIABLE_IL: {
3883 MonoException *ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.Security", "VerificationException", cfg->exception_message);
3884 mono_destroy_compile (cfg);
3885 mono_raise_exception (ex);
3886 break;
3887 }
3888 case MONO_EXCEPTION_METHOD_ACCESS: {
3889 MonoException *ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MethodAccessException", cfg->exception_message);
3890 mono_destroy_compile (cfg);
3891 mono_raise_exception (ex);
3892 break;
3893 }
3894 case MONO_EXCEPTION_FIELD_ACCESS: {
3895 MonoException *ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FieldAccessException", cfg->exception_message);
3896 mono_destroy_compile (cfg);
3897 mono_raise_exception (ex);
3898 break;
3899 }
3900 /* this can only be set if the security manager is active */
3901 case MONO_EXCEPTION_SECURITY_LINKDEMAND: {
3902 MonoSecurityManager* secman = mono_security_manager_get_methods ();
3903 MonoObject *exc = NULL;
3904 gpointer args [2];
3905
3906 args [0] = &cfg->exception_data;
3907 args [1] = &method;
3908 mono_runtime_invoke (secman->linkdemandsecurityexception, NULL, args, &exc);
3909
3910 mono_destroy_compile (cfg);
3911 cfg = NULL;
3912
3913 mono_raise_exception ((MonoException*)exc);
3914 }
3915 case MONO_EXCEPTION_OBJECT_SUPPLIED: {
3916 MonoException *exp = cfg->exception_ptr;
3917 MONO_GC_UNREGISTER_ROOT (cfg->exception_ptr);
3918 mono_destroy_compile (cfg);
3919 mono_raise_exception (exp);
3920 break;
3921 }
3922 default:
3923 g_assert_not_reached ();
3924 }
3925
3926 mono_loader_lock (); /*FIXME lookup_method_inner requires the loader lock*/
3927 mono_domain_lock (target_domain);
3928
3929 /* Check if some other thread already did the job. In this case, we can
3930 discard the code this thread generated. */
3931
3932 mono_domain_jit_code_hash_lock (target_domain);
3933
3934 info = lookup_method_inner (target_domain, method);
3935 if (info) {
3936 /* We can't use a domain specific method in another domain */
3937 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
3938 code = info->code_start;
3939 // printf("Discarding code for method %s\n", method->name);
3940 }
3941 }
3942
3943 if (code == NULL) {
3944 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->method, cfg->jit_info);
3945 mono_domain_jit_code_hash_unlock (target_domain);
3946 code = cfg->native_code;
3947
3948 if (cfg->generic_sharing_context && mono_method_is_generic_sharable_impl (method, FALSE))
3949 mono_stats.generics_shared_methods++;
3950 } else {
3951 mono_domain_jit_code_hash_unlock (target_domain);
3952 }
3953
3954 mono_destroy_compile (cfg);
3955
3956 if (domain_jit_info (target_domain)->jump_target_hash) {
3957 MonoJumpInfo patch_info;
3958 GSList *list, *tmp;
3959 list = g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
3960 if (list) {
3961 patch_info.next = NULL;
3962 patch_info.ip.i = 0;
3963 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
3964 patch_info.data.method = method;
3965 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
3966 }
3967 for (tmp = list; tmp; tmp = tmp->next)
3968 mono_arch_patch_code (NULL, target_domain, tmp->data, &patch_info, TRUE);
3969 g_slist_free (list);
3970 }
3971
3972 mono_domain_unlock (target_domain);
3973 mono_loader_unlock ();
3974
3975 vtable = mono_class_vtable (target_domain, method->klass);
3976 if (!vtable) {
3977 MonoException *exc;
3978 exc = mono_class_get_exception_for_failure (method->klass);
3979 g_assert (exc);
3980 mono_raise_exception (exc);
3981 }
3982 mono_runtime_class_init (vtable);
3983 return code;
3984 }
3985
3986 static gpointer
3987 mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt)
3988 {
3989 MonoDomain *target_domain, *domain = mono_domain_get ();
3990 MonoJitInfo *info;
3991 gpointer p;
3992 MonoJitICallInfo *callinfo = NULL;
3993
3994 /*
3995 * ICALL wrappers are handled specially, since there is only one copy of them
3996 * shared by all appdomains.
3997 */
3998 if ((method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) && (strstr (method->name, "__icall_wrapper_") == method->name)) {
3999 const char *icall_name;
4000
4001 icall_name = method->name + strlen ("__icall_wrapper_");
4002 g_assert (icall_name);
4003 callinfo = mono_find_jit_icall_by_name (icall_name);
4004 g_assert (callinfo);
4005
4006 /* Must be domain neutral since there is only one copy */
4007 opt |= MONO_OPT_SHARED;
4008 }
4009
4010 if (opt & MONO_OPT_SHARED)
4011 target_domain = mono_get_root_domain ();
4012 else
4013 target_domain = domain;
4014
4015 info = lookup_method (target_domain, method);
4016 if (info) {
4017 /* We can't use a domain specific method in another domain */
4018 if (! ((domain != target_domain) && !info->domain_neutral)) {
4019 MonoVTable *vtable;
4020
4021 mono_jit_stats.methods_lookups++;
4022 vtable = mono_class_vtable (domain, method->klass);
4023 mono_runtime_class_init (vtable);
4024 return mono_create_ftnptr (target_domain, info->code_start);
4025 }
4026 }
4027
4028 p = mono_create_ftnptr (target_domain, mono_jit_compile_method_inner (method, target_domain, opt));
4029
4030 if (callinfo) {
4031 mono_jit_lock ();
4032 if (!callinfo->wrapper) {
4033 callinfo->wrapper = p;
4034 mono_register_jit_icall_wrapper (callinfo, p);
4035 mono_debug_add_icall_wrapper (method, callinfo);
4036 }
4037 mono_jit_unlock ();
4038 }
4039
4040 return p;
4041 }
4042
4043 static gpointer
4044 mono_jit_compile_method (MonoMethod *method)
4045 {
4046 return mono_jit_compile_method_with_opt (method, default_opt);
4047 }
4048
4049 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
4050 static void
4051 invalidated_delegate_trampoline (char *desc)
4052 {
4053 g_error ("Unmanaged code called delegate of type %s which was already garbage collected.\n"
4054 "See http://www.go-mono.com/delegate.html for an explanation and ways to fix this.",
4055 desc);
4056 }
4057 #endif
4058
4059 /*
4060 * mono_jit_free_method:
4061 *
4062 * Free all memory allocated by the JIT for METHOD.
4063 */
4064 static void
4065 mono_jit_free_method (MonoDomain *domain, MonoMethod *method)
4066 {
4067 MonoJitDynamicMethodInfo *ji;
4068 gboolean destroy = TRUE;
4069
4070 g_assert (method->dynamic);
4071
4072 mono_domain_lock (domain);
4073 ji = mono_dynamic_code_hash_lookup (domain, method);
4074 mono_domain_unlock (domain);
4075
4076 if (!ji)
4077 return;
4078 mono_domain_lock (domain);
4079 g_hash_table_remove (domain_jit_info (domain)->dynamic_code_hash, method);
4080 mono_internal_hash_table_remove (&domain->jit_code_hash, method);
4081 g_hash_table_remove (domain_jit_info (domain)->jump_trampoline_hash, method);
4082 mono_domain_unlock (domain);
4083
4084 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
4085 if (debug_options.keep_delegates && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
4086 /*
4087 * Instead of freeing the code, change it to call an error routine
4088 * so people can fix their code.
4089 */
4090 char *type = mono_type_full_name (&method->klass->byval_arg);
4091 char *type_and_method = g_strdup_printf ("%s.%s", type, method->name);
4092
4093 g_free (type);
4094 mono_arch_invalidate_method (ji->ji, invalidated_delegate_trampoline, type_and_method);
4095 destroy = FALSE;
4096 }
4097 #endif
4098
4099 /*
4100 * This needs to be done before freeing code_mp, since the code address is the
4101 * key in the table, so if we free the code_mp first, another thread can grab the
4102 * same code address and replace our entry in the table.
4103 */
4104 mono_jit_info_table_remove (domain, ji->ji);
4105
4106 if (destroy)
4107 mono_code_manager_destroy (ji->code_mp);
4108 g_free (ji);
4109 }
4110
4111 gpointer
4112 mono_jit_find_compiled_method_with_jit_info (MonoDomain *domain, MonoMethod *method, MonoJitInfo **ji)
4113 {
4114 MonoDomain *target_domain;
4115 MonoJitInfo *info;
4116
4117 if (default_opt & MONO_OPT_SHARED)
4118 target_domain = mono_get_root_domain ();
4119 else
4120 target_domain = domain;
4121
4122 info = lookup_method (target_domain, method);
4123 if (info) {
4124 /* We can't use a domain specific method in another domain */
4125 if (! ((domain != target_domain) && !info->domain_neutral)) {
4126 mono_jit_stats.methods_lookups++;
4127 if (ji)
4128 *ji = info;
4129 return info->code_start;
4130 }
4131 }
4132
4133 if (ji)
4134 *ji = NULL;
4135 return NULL;
4136 }
4137
4138 gpointer
4139 mono_jit_find_compiled_method (MonoDomain *domain, MonoMethod *method)
4140 {
4141 return mono_jit_find_compiled_method_with_jit_info (domain, method, NULL);
4142 }
4143
4144 /**
4145 * mono_jit_runtime_invoke:
4146 * @method: the method to invoke
4147 * @obj: this pointer
4148 * @params: array of parameter values.
4149 * @exc: used to catch exceptions objects
4150 */
4151 static MonoObject*
4152 mono_jit_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
4153 {
4154 MonoMethod *to_compile;
4155 MonoMethod *invoke;
4156 MonoObject *(*runtime_invoke) (MonoObject *this, void **params, MonoObject **exc, void* compiled_method);
4157 void* compiled_method;
4158 MonoVTable *vtable;
4159
4160 if (obj == NULL && !(method->flags & METHOD_ATTRIBUTE_STATIC) && !method->string_ctor && (method->wrapper_type == 0)) {
4161 g_warning ("Ignoring invocation of an instance method on a NULL instance.\n");
4162 return NULL;
4163 }
4164
4165 if (mono_method_needs_static_rgctx_invoke (method, FALSE))
4166 to_compile = mono_marshal_get_static_rgctx_invoke (method);
4167 else
4168 to_compile = method;
4169
4170 /* Special case parameterless ctors to speed up Activator.CreateInstance () */
4171 if (method->flags & (METHOD_ATTRIBUTE_SPECIAL_NAME | METHOD_ATTRIBUTE_RT_SPECIAL_NAME) && !strcmp (method->name, ".ctor") && mono_method_signature (method)->param_count == 0 && !method->klass->valuetype) {
4172 MonoJitDomainInfo *domain_info = domain_jit_info (mono_domain_get ());
4173
4174 if (!domain_info->ctor_runtime_invoke) {
4175 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
4176 domain_info->ctor_runtime_invoke = mono_jit_compile_method (invoke);
4177 }
4178
4179 runtime_invoke = domain_info->ctor_runtime_invoke;
4180 } else {
4181 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
4182 runtime_invoke = mono_jit_compile_method (invoke);
4183 }
4184
4185 /* We need this here becuase mono_marshal_get_runtime_invoke can be place
4186 * the helper method in System.Object and not the target class
4187 */
4188 vtable = mono_class_vtable (mono_domain_get (), method->klass);
4189 g_assert (vtable);
4190 mono_runtime_class_init (vtable);
4191
4192 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4193 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4194 /*
4195 * Array Get/Set/Address methods. The JIT implements them using inline code
4196 * inside the runtime invoke wrappers, so no need to compile them.
4197 */
4198 compiled_method = NULL;
4199 } else {
4200 compiled_method = mono_jit_compile_method (to_compile);
4201 }
4202 return runtime_invoke (obj, params, exc, compiled_method);
4203 }
4204
4205 void
4206 SIG_HANDLER_SIGNATURE (mono_sigfpe_signal_handler)
4207 {
4208 MonoException *exc = NULL;
4209 #ifndef MONO_ARCH_USE_SIGACTION
4210 void *info = NULL;
4211 #endif
4212 GET_CONTEXT;
4213
4214 if (mono_chain_signal (SIG_HANDLER_PARAMS))
4215 return;
4216
4217 #if defined(MONO_ARCH_HAVE_IS_INT_OVERFLOW)
4218 if (mono_arch_is_int_overflow (ctx, info))
4219 exc = mono_get_exception_arithmetic ();
4220 else
4221 exc = mono_get_exception_divide_by_zero ();
4222 #else
4223 exc = mono_get_exception_divide_by_zero ();
4224 #endif
4225
4226 mono_arch_handle_exception (ctx, exc, FALSE);
4227 }
4228
4229 void
4230 SIG_HANDLER_SIGNATURE (mono_sigill_signal_handler)
4231 {
4232 MonoException *exc;
4233 GET_CONTEXT;
4234
4235 exc = mono_get_exception_execution_engine ("SIGILL");
4236
4237 mono_arch_handle_exception (ctx, exc, FALSE);
4238 }
4239
4240 void
4241 SIG_HANDLER_SIGNATURE (mono_sigsegv_signal_handler)
4242 {
4243 #ifndef MONO_ARCH_SIGSEGV_ON_ALTSTACK
4244 MonoException *exc = NULL;
4245 #endif
4246 MonoJitInfo *ji;
4247 MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id);
4248
4249 GET_CONTEXT;
4250
4251 /* The thread might no be registered with the runtime */
4252 if (!mono_domain_get () || !jit_tls) {
4253 if (mono_chain_signal (SIG_HANDLER_PARAMS))
4254 return;
4255 mono_handle_native_sigsegv (SIGSEGV, ctx);
4256 }
4257
4258 ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context (ctx));
4259
4260 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
4261 if (mono_handle_soft_stack_ovf (jit_tls, ji, ctx, (guint8*)info->si_addr))
4262 return;
4263
4264 /* The hard-guard page has been hit: there is not much we can do anymore
4265 * Print a hopefully clear message and abort.
4266 */
4267 if (jit_tls->stack_size &&
4268 ABS ((guint8*)info->si_addr - ((guint8*)jit_tls->end_of_stack - jit_tls->stack_size)) < 32768) {
4269 const char *method;
4270 /* we don't do much now, but we can warn the user with a useful message */
4271 fprintf (stderr, "Stack overflow: IP: %p, fault addr: %p\n", mono_arch_ip_from_context (ctx), (gpointer)info->si_addr);
4272 if (ji && ji->method)
4273 method = mono_method_full_name (ji->method, TRUE);
4274 else
4275 method = "Unmanaged";
4276 fprintf (stderr, "At %s\n", method);
4277 _exit (1);
4278 } else {
4279 /* The original handler might not like that it is executed on an altstack... */
4280 if (!ji && mono_chain_signal (SIG_HANDLER_PARAMS))
4281 return;
4282
4283 mono_arch_handle_altstack_exception (ctx, info->si_addr, FALSE);
4284 }
4285 #else
4286
4287 if (!ji) {
4288 if (mono_chain_signal (SIG_HANDLER_PARAMS))
4289 return;
4290
4291 mono_handle_native_sigsegv (SIGSEGV, ctx);
4292 }
4293
4294 mono_arch_handle_exception (ctx, exc, FALSE);
4295 #endif
4296 }
4297
4298 void
4299 SIG_HANDLER_SIGNATURE (mono_sigint_signal_handler)
4300 {
4301 MonoException *exc;
4302 GET_CONTEXT;
4303
4304 exc = mono_get_exception_execution_engine ("Interrupted (SIGINT).");
4305
4306 mono_arch_handle_exception (ctx, exc, FALSE);
4307 }
4308
4309 /* mono_jit_create_remoting_trampoline:
4310 * @method: pointer to the method info
4311 *
4312 * Creates a trampoline which calls the remoting functions. This
4313 * is used in the vtable of transparent proxies.
4314 *
4315 * Returns: a pointer to the newly created code
4316 */
4317 static gpointer
4318 mono_jit_create_remoting_trampoline (MonoDomain *domain, MonoMethod *method, MonoRemotingTarget target)
4319 {
4320 MonoMethod *nm;
4321 guint8 *addr = NULL;
4322
4323 if ((method->flags & METHOD_ATTRIBUTE_VIRTUAL) && mono_method_signature (method)->generic_param_count) {
4324 return mono_arch_create_specific_trampoline (method, MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING,
4325 domain, NULL);
4326 }
4327
4328 if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
4329 (mono_method_signature (method)->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class))) {
4330 nm = mono_marshal_get_remoting_invoke_for_target (method, target);
4331 addr = mono_compile_method (nm);
4332 } else {
4333 addr = mono_compile_method (method);
4334 }
4335 return mono_get_addr_from_ftnptr (addr);
4336 }
4337
4338 #ifdef MONO_ARCH_HAVE_IMT
4339 static gpointer
4340 mini_get_imt_trampoline (void)
4341 {
4342 static gpointer tramp = NULL;
4343 if (!tramp)
4344 tramp = mono_create_specific_trampoline (MONO_FAKE_IMT_METHOD, MONO_TRAMPOLINE_JIT, mono_get_root_domain (), NULL);
4345 return tramp;
4346 }
4347 #endif
4348
4349 #ifdef MONO_ARCH_COMMON_VTABLE_TRAMPOLINE
4350 gpointer
4351 mini_get_vtable_trampoline (void)
4352 {
4353 static gpointer tramp = NULL;
4354 if (!tramp)
4355 tramp = mono_create_specific_trampoline (MONO_FAKE_VTABLE_METHOD, MONO_TRAMPOLINE_JIT, mono_get_root_domain (), NULL);
4356 return tramp;
4357 }
4358 #endif
4359
4360 static void
4361 mini_parse_debug_options (void)
4362 {
4363 char *options = getenv ("MONO_DEBUG");
4364 gchar **args, **ptr;
4365
4366 if (!options)
4367 return;
4368
4369 args = g_strsplit (options, ",", -1);
4370
4371 for (ptr = args; ptr && *ptr; ptr++) {
4372 const char *arg = *ptr;
4373
4374 if (!strcmp (arg, "handle-sigint"))
4375 debug_options.handle_sigint = TRUE;
4376 else if (!strcmp (arg, "keep-delegates"))
4377 debug_options.keep_delegates = TRUE;
4378 else if (!strcmp (arg, "collect-pagefault-stats"))
4379 debug_options.collect_pagefault_stats = TRUE;
4380 else if (!strcmp (arg, "break-on-unverified"))
4381 debug_options.break_on_unverified = TRUE;
4382 else if (!strcmp (arg, "no-gdb-backtrace"))
4383 debug_options.no_gdb_backtrace = TRUE;
4384 else if (!strcmp (arg, "suspend-on-sigsegv"))
4385 debug_options.suspend_on_sigsegv = TRUE;
4386 else if (!strcmp (arg, "dont-free-domains"))
4387 mono_dont_free_domains = TRUE;
4388 else {
4389 fprintf (stderr, "Invalid option for the MONO_DEBUG env variable: %s\n", arg);
4390 fprintf (stderr, "Available options: 'handle-sigint', 'keep-delegates', 'collect-pagefault-stats', 'break-on-unverified', 'no-gdb-backtrace', 'dont-free-domains', 'suspend-on-sigsegv'\n");
4391 exit (1);
4392 }
4393 }
4394
4395 g_strfreev (args);
4396 }
4397
4398 MonoDebugOptions *
4399 mini_get_debug_options (void)
4400 {
4401 return &debug_options;
4402 }
4403
4404 static void
4405 mini_create_jit_domain_info (MonoDomain *domain)
4406 {
4407 MonoJitDomainInfo *info = g_new0 (MonoJitDomainInfo, 1);
4408
4409 info->class_init_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4410 info->jump_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4411 info->jit_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4412 info->delegate_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4413
4414 domain->runtime_info = info;
4415 }
4416
4417 static void
4418 delete_jump_list (gpointer key, gpointer value, gpointer user_data)
4419 {
4420 g_slist_free (value);
4421 }
4422
4423 static void
4424 dynamic_method_info_free (gpointer key, gpointer value, gpointer user_data)
4425 {
4426 MonoJitDynamicMethodInfo *di = value;
4427 mono_code_manager_destroy (di->code_mp);
4428 g_free (di);
4429 }
4430
4431 static void
4432 mini_free_jit_domain_info (MonoDomain *domain)
4433 {
4434 MonoJitDomainInfo *info = domain_jit_info (domain);
4435
4436 if (info->jump_target_hash) {
4437 g_hash_table_foreach (info->jump_target_hash, delete_jump_list, NULL);
4438 g_hash_table_destroy (info->jump_target_hash);
4439 }
4440 if (info->jump_target_got_slot_hash) {
4441 g_hash_table_foreach (info->jump_target_got_slot_hash, delete_jump_list, NULL);
4442 g_hash_table_destroy (info->jump_target_got_slot_hash);
4443 }
4444 if (info->dynamic_code_hash) {
4445 g_hash_table_foreach (info->dynamic_code_hash, dynamic_method_info_free, NULL);
4446 g_hash_table_destroy (info->dynamic_code_hash);
4447 }
4448 if (info->method_code_hash)
4449 g_hash_table_destroy (info->method_code_hash);
4450 g_hash_table_destroy (info->class_init_trampoline_hash);
4451 g_hash_table_destroy (info->jump_trampoline_hash);
4452 g_hash_table_destroy (info->jit_trampoline_hash);
4453 g_hash_table_destroy (info->delegate_trampoline_hash);
4454
4455 g_free (domain->runtime_info);
4456 domain->runtime_info = NULL;
4457 }
4458
4459 MonoDomain *
4460 mini_init (const char *filename, const char *runtime_version)
4461 {
4462 MonoDomain *domain;
4463
4464 MONO_PROBE_VES_INIT_BEGIN ();
4465
4466 #ifdef __linux__
4467 if (access ("/proc/self/maps", F_OK) != 0) {
4468 g_print ("Mono requires /proc to be mounted.\n");
4469 exit (1);
4470 }
4471 #endif
4472
4473 /* Happens when using the embedding interface */
4474 if (!default_opt_set)
4475 default_opt = mono_parse_default_optimizations (NULL);
4476
4477 InitializeCriticalSection (&jit_mutex);
4478
4479 if (!global_codeman)
4480 global_codeman = mono_code_manager_new ();
4481 jit_icall_name_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
4482
4483 mono_arch_cpu_init ();
4484
4485 mono_arch_init ();
4486
4487 mono_unwind_init ();
4488
4489 if (getenv ("MONO_XDEBUG")) {
4490 mono_xdebug_init ();
4491 /* So methods for multiple domains don't have the same address */
4492 mono_dont_free_domains = TRUE;
4493 }
4494
4495 mono_trampolines_init ();
4496
4497 if (!g_thread_supported ())
4498 g_thread_init (NULL);
4499
4500 if (getenv ("MONO_DEBUG") != NULL)
4501 mini_parse_debug_options ();
4502
4503 mono_gc_base_init ();
4504
4505 mono_jit_tls_id = TlsAlloc ();
4506 setup_jit_tls_data ((gpointer)-1, mono_thread_abort);
4507
4508 if (default_opt & MONO_OPT_AOT)
4509 mono_aot_init ();
4510
4511 mono_runtime_install_handlers ();
4512 mono_threads_install_cleanup (mini_thread_cleanup);
4513
4514 #ifdef MONO_ARCH_HAVE_NOTIFY_PENDING_EXC
4515 // This is experimental code so provide an env var to switch it off
4516 if (getenv ("MONO_DISABLE_PENDING_EXCEPTIONS")) {
4517 printf ("MONO_DISABLE_PENDING_EXCEPTIONS env var set.\n");
4518 } else {
4519 check_for_pending_exc = FALSE;
4520 mono_threads_install_notify_pending_exc (mono_arch_notify_pending_exc);
4521 }
4522 #endif
4523
4524 #define JIT_TRAMPOLINES_WORK
4525 #ifdef JIT_TRAMPOLINES_WORK
4526 mono_install_compile_method (mono_jit_compile_method);
4527 mono_install_free_method (mono_jit_free_method);
4528 mono_install_trampoline (mono_create_jit_trampoline);
4529 mono_install_jump_trampoline (mono_create_jump_trampoline);
4530 mono_install_remoting_trampoline (mono_jit_create_remoting_trampoline);
4531 mono_install_delegate_trampoline (mono_create_delegate_trampoline);
4532 mono_install_create_domain_hook (mini_create_jit_domain_info);
4533 mono_install_free_domain_hook (mini_free_jit_domain_info);
4534 #endif
4535 #define JIT_INVOKE_WORKS
4536 #ifdef JIT_INVOKE_WORKS
4537 mono_install_runtime_invoke (mono_jit_runtime_invoke);
4538 #endif
4539 mono_install_stack_walk (mono_jit_walk_stack);
4540 mono_install_get_cached_class_info (mono_aot_get_cached_class_info);
4541 mono_install_get_class_from_name (mono_aot_get_class_from_name);
4542 mono_install_jit_info_find_in_aot (mono_aot_find_jit_info);
4543
4544 if (runtime_version)
4545 domain = mono_init_version (filename, runtime_version);
4546 else
4547 domain = mono_init_from_assembly (filename, filename);
4548
4549 if (mono_aot_only) {
4550 /* The IMT tables are very dynamic thus they are hard to AOT */
4551 mono_use_imt = FALSE;
4552 /* This helps catch code allocation requests */
4553 mono_code_manager_set_read_only (domain->code_mp);
4554 }
4555
4556 #ifdef MONO_ARCH_HAVE_IMT
4557 if (mono_use_imt) {
4558 mono_install_imt_thunk_builder (mono_arch_build_imt_thunk);
4559 mono_install_imt_trampoline (mini_get_imt_trampoline ());
4560 #if MONO_ARCH_COMMON_VTABLE_TRAMPOLINE
4561 mono_install_vtable_trampoline (mini_get_vtable_trampoline ());
4562 #endif
4563 }
4564 #endif
4565
4566 /* This must come after mono_init () in the aot-only case */
4567 mono_exceptions_init ();
4568 mono_install_handler (mono_get_throw_exception ());
4569
4570 mono_icall_init ();
4571
4572 mono_add_internal_call ("System.Diagnostics.StackFrame::get_frame_info",
4573 ves_icall_get_frame_info);
4574 mono_add_internal_call ("System.Diagnostics.StackTrace::get_trace",
4575 ves_icall_get_trace);
4576 mono_add_internal_call ("System.Exception::get_trace",
4577 ves_icall_System_Exception_get_trace);
4578 mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityFrame",
4579 ves_icall_System_Security_SecurityFrame_GetSecurityFrame);
4580 mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityStack",
4581 ves_icall_System_Security_SecurityFrame_GetSecurityStack);
4582 mono_add_internal_call ("Mono.Runtime::mono_runtime_install_handlers",
4583 mono_runtime_install_handlers);
4584
4585
4586 create_helper_signature ();
4587
4588 #define JIT_CALLS_WORK
4589 #ifdef JIT_CALLS_WORK
4590 /* Needs to be called here since register_jit_icall depends on it */
4591 mono_marshal_init ();
4592
4593 mono_arch_register_lowlevel_calls ();
4594 register_icall (mono_profiler_method_enter, "mono_profiler_method_enter", NULL, TRUE);
4595 register_icall (mono_profiler_method_leave, "mono_profiler_method_leave", NULL, TRUE);
4596 register_icall (mono_trace_enter_method, "mono_trace_enter_method", NULL, TRUE);
4597 register_icall (mono_trace_leave_method, "mono_trace_leave_method", NULL, TRUE);
4598 register_icall (mono_get_lmf_addr, "mono_get_lmf_addr", "ptr", TRUE);
4599 register_icall (mono_jit_thread_attach, "mono_jit_thread_attach", "void", TRUE);
4600 register_icall (mono_domain_get, "mono_domain_get", "ptr", TRUE);
4601
4602 register_icall (mono_get_throw_exception (), "mono_arch_throw_exception", "void object", TRUE);
4603 register_icall (mono_get_rethrow_exception (), "mono_arch_rethrow_exception", "void object", TRUE);
4604 register_icall (mono_get_throw_exception_by_name (), "mono_arch_throw_exception_by_name", "void ptr", TRUE);
4605 #if MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION
4606 register_icall (mono_get_throw_corlib_exception (), "mono_arch_throw_corlib_exception",
4607 "void ptr", TRUE);
4608 #endif
4609 register_icall (mono_thread_get_undeniable_exception, "mono_thread_get_undeniable_exception", "object", FALSE);
4610 register_icall (mono_thread_interruption_checkpoint, "mono_thread_interruption_checkpoint", "void", FALSE);
4611 register_icall (mono_thread_force_interruption_checkpoint, "mono_thread_force_interruption_checkpoint", "void", FALSE);
4612 register_icall (mono_load_remote_field_new, "mono_load_remote_field_new", "object object ptr ptr", FALSE);
4613 register_icall (mono_store_remote_field_new, "mono_store_remote_field_new", "void object ptr ptr object", FALSE);
4614
4615 /*
4616 * NOTE, NOTE, NOTE, NOTE:
4617 * when adding emulation for some opcodes, remember to also add a dummy
4618 * rule to the burg files, because we need the arity information to be correct.
4619 */
4620 #ifndef MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
4621 mono_register_opcode_emulation (OP_LMUL, "__emul_lmul", "long long long", mono_llmult, TRUE);
4622 mono_register_opcode_emulation (OP_LDIV, "__emul_ldiv", "long long long", mono_lldiv, FALSE);
4623 mono_register_opcode_emulation (OP_LDIV_UN, "__emul_ldiv_un", "long long long", mono_lldiv_un, FALSE);
4624 mono_register_opcode_emulation (OP_LREM, "__emul_lrem", "long long long", mono_llrem, FALSE);
4625 mono_register_opcode_emulation (OP_LREM_UN, "__emul_lrem_un", "long long long", mono_llrem_un, FALSE);
4626 mono_register_opcode_emulation (OP_LMUL_OVF_UN, "__emul_lmul_ovf_un", "long long long", mono_llmult_ovf_un, FALSE);
4627 mono_register_opcode_emulation (OP_LMUL_OVF, "__emul_lmul_ovf", "long long long", mono_llmult_ovf, FALSE);
4628 #endif
4629
4630 #ifndef MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
4631 mono_register_opcode_emulation (OP_LSHL, "__emul_lshl", "long long int32", mono_lshl, TRUE);
4632 mono_register_opcode_emulation (OP_LSHR, "__emul_lshr", "long long int32", mono_lshr, TRUE);
4633 mono_register_opcode_emulation (OP_LSHR_UN, "__emul_lshr_un", "long long int32", mono_lshr_un, TRUE);
4634 #endif
4635
4636 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_DIV)
4637 mono_register_opcode_emulation (CEE_DIV, "__emul_idiv", "int32 int32 int32", mono_idiv, FALSE);
4638 mono_register_opcode_emulation (CEE_DIV_UN, "__emul_idiv_un", "int32 int32 int32", mono_idiv_un, FALSE);
4639 mono_register_opcode_emulation (CEE_REM, "__emul_irem", "int32 int32 int32", mono_irem, FALSE);
4640 mono_register_opcode_emulation (CEE_REM_UN, "__emul_irem_un", "int32 int32 int32", mono_irem_un, FALSE);
4641 mono_register_opcode_emulation (OP_IDIV, "__emul_op_idiv", "int32 int32 int32", mono_idiv, FALSE);
4642 mono_register_opcode_emulation (OP_IDIV_UN, "__emul_op_idiv_un", "int32 int32 int32", mono_idiv_un, FALSE);
4643 mono_register_opcode_emulation (OP_IREM, "__emul_op_irem", "int32 int32 int32", mono_irem, FALSE);
4644 mono_register_opcode_emulation (OP_IREM_UN, "__emul_op_irem_un", "int32 int32 int32", mono_irem_un, FALSE);
4645 #endif
4646
4647 #ifdef MONO_ARCH_EMULATE_MUL_DIV
4648 mono_register_opcode_emulation (CEE_MUL, "__emul_imul", "int32 int32 int32", mono_imul, TRUE);
4649 mono_register_opcode_emulation (OP_IMUL, "__emul_op_imul", "int32 int32 int32", mono_imul, TRUE);
4650 #endif
4651
4652 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_MUL_OVF)
4653 mono_register_opcode_emulation (CEE_MUL_OVF, "__emul_imul_ovf", "int32 int32 int32", mono_imul_ovf, FALSE);
4654 mono_register_opcode_emulation (CEE_MUL_OVF_UN, "__emul_imul_ovf_un", "int32 int32 int32", mono_imul_ovf_un, FALSE);
4655 mono_register_opcode_emulation (OP_IMUL_OVF, "__emul_op_imul_ovf", "int32 int32 int32", mono_imul_ovf, FALSE);
4656 mono_register_opcode_emulation (OP_IMUL_OVF_UN, "__emul_op_imul_ovf_un", "int32 int32 int32", mono_imul_ovf_un, FALSE);
4657 #endif
4658
4659 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_SOFT_FLOAT)
4660 mono_register_opcode_emulation (OP_FDIV, "__emul_fdiv", "double double double", mono_fdiv, FALSE);
4661 #endif
4662
4663 mono_register_opcode_emulation (OP_FCONV_TO_U8, "__emul_fconv_to_u8", "ulong double", mono_fconv_u8, FALSE);
4664 mono_register_opcode_emulation (OP_FCONV_TO_U4, "__emul_fconv_to_u4", "uint32 double", mono_fconv_u4, FALSE);
4665 mono_register_opcode_emulation (OP_FCONV_TO_OVF_I8, "__emul_fconv_to_ovf_i8", "long double", mono_fconv_ovf_i8, FALSE);
4666 mono_register_opcode_emulation (OP_FCONV_TO_OVF_U8, "__emul_fconv_to_ovf_u8", "ulong double", mono_fconv_ovf_u8, FALSE);
4667
4668 #ifdef MONO_ARCH_EMULATE_FCONV_TO_I8
4669 mono_register_opcode_emulation (OP_FCONV_TO_I8, "__emul_fconv_to_i8", "long double", mono_fconv_i8, FALSE);
4670 #endif
4671 #ifdef MONO_ARCH_EMULATE_CONV_R8_UN
4672 mono_register_opcode_emulation (CEE_CONV_R_UN, "__emul_conv_r_un", "double int32", mono_conv_to_r8_un, FALSE);
4673 mono_register_opcode_emulation (OP_ICONV_TO_R_UN, "__emul_iconv_to_r_un", "double int32", mono_conv_to_r8_un, FALSE);
4674 #endif
4675 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8
4676 mono_register_opcode_emulation (OP_LCONV_TO_R8, "__emul_lconv_to_r8", "double long", mono_lconv_to_r8, FALSE);
4677 #endif
4678 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R4
4679 mono_register_opcode_emulation (OP_LCONV_TO_R4, "__emul_lconv_to_r4", "float long", mono_lconv_to_r4, FALSE);
4680 #endif
4681 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8_UN
4682 mono_register_opcode_emulation (OP_LCONV_TO_R_UN, "__emul_lconv_to_r8_un", "double long", mono_lconv_to_r8_un, FALSE);
4683 #endif
4684 #ifdef MONO_ARCH_EMULATE_FREM
4685 mono_register_opcode_emulation (OP_FREM, "__emul_frem", "double double double", fmod, FALSE);
4686 #endif
4687
4688 #ifdef MONO_ARCH_SOFT_FLOAT
4689 mono_register_opcode_emulation (OP_FSUB, "__emul_fsub", "double double double", mono_fsub, FALSE);
4690 mono_register_opcode_emulation (OP_FADD, "__emul_fadd", "double double double", mono_fadd, FALSE);
4691 mono_register_opcode_emulation (OP_FMUL, "__emul_fmul", "double double double", mono_fmul, FALSE);
4692 mono_register_opcode_emulation (OP_FNEG, "__emul_fneg", "double double", mono_fneg, FALSE);
4693 mono_register_opcode_emulation (CEE_CONV_R8, "__emul_conv_r8", "double int32", mono_conv_to_r8, FALSE);
4694 mono_register_opcode_emulation (OP_ICONV_TO_R8, "__emul_iconv_to_r8", "double int32", mono_conv_to_r8, FALSE);
4695 mono_register_opcode_emulation (CEE_CONV_R4, "__emul_conv_r4", "double int32", mono_conv_to_r4, FALSE);
4696 mono_register_opcode_emulation (OP_ICONV_TO_R4, "__emul_iconv_to_r4", "double int32", mono_conv_to_r4, FALSE);
4697 mono_register_opcode_emulation (OP_FCONV_TO_R4, "__emul_fconv_to_r4", "double double", mono_fconv_r4, FALSE);
4698 mono_register_opcode_emulation (OP_FCONV_TO_I1, "__emul_fconv_to_i1", "int8 double", mono_fconv_i1, FALSE);
4699 mono_register_opcode_emulation (OP_FCONV_TO_I2, "__emul_fconv_to_i2", "int16 double", mono_fconv_i2, FALSE);
4700 mono_register_opcode_emulation (OP_FCONV_TO_I4, "__emul_fconv_to_i4", "int32 double", mono_fconv_i4, FALSE);
4701 mono_register_opcode_emulation (OP_FCONV_TO_U1, "__emul_fconv_to_u1", "uint8 double", mono_fconv_u1, FALSE);
4702 mono_register_opcode_emulation (OP_FCONV_TO_U2, "__emul_fconv_to_u2", "uint16 double", mono_fconv_u2, FALSE);
4703 #if SIZEOF_VOID_P == 4
4704 mono_register_opcode_emulation (OP_FCONV_TO_I, "__emul_fconv_to_i", "int32 double", mono_fconv_i4, FALSE);
4705 #endif
4706
4707 mono_register_opcode_emulation (OP_FBEQ, "__emul_fcmp_eq", "uint32 double double", mono_fcmp_eq, FALSE);
4708 mono_register_opcode_emulation (OP_FBLT, "__emul_fcmp_lt", "uint32 double double", mono_fcmp_lt, FALSE);
4709 mono_register_opcode_emulation (OP_FBGT, "__emul_fcmp_gt", "uint32 double double", mono_fcmp_gt, FALSE);
4710 mono_register_opcode_emulation (OP_FBLE, "__emul_fcmp_le", "uint32 double double", mono_fcmp_le, FALSE);
4711 mono_register_opcode_emulation (OP_FBGE, "__emul_fcmp_ge", "uint32 double double", mono_fcmp_ge, FALSE);
4712 mono_register_opcode_emulation (OP_FBNE_UN, "__emul_fcmp_ne_un", "uint32 double double", mono_fcmp_ne_un, FALSE);
4713 mono_register_opcode_emulation (OP_FBLT_UN, "__emul_fcmp_lt_un", "uint32 double double", mono_fcmp_lt_un, FALSE);
4714 mono_register_opcode_emulation (OP_FBGT_UN, "__emul_fcmp_gt_un", "uint32 double double", mono_fcmp_gt_un, FALSE);
4715 mono_register_opcode_emulation (OP_FBLE_UN, "__emul_fcmp_le_un", "uint32 double double", mono_fcmp_le_un, FALSE);
4716 mono_register_opcode_emulation (OP_FBGE_UN, "__emul_fcmp_ge_un", "uint32 double double", mono_fcmp_ge_un, FALSE);
4717
4718 mono_register_opcode_emulation (OP_FCEQ, "__emul_fcmp_ceq", "uint32 double double", mono_fceq, FALSE);
4719 mono_register_opcode_emulation (OP_FCGT, "__emul_fcmp_cgt", "uint32 double double", mono_fcgt, FALSE);
4720 mono_register_opcode_emulation (OP_FCGT_UN, "__emul_fcmp_cgt_un", "uint32 double double", mono_fcgt_un, FALSE);
4721 mono_register_opcode_emulation (OP_FCLT, "__emul_fcmp_clt", "uint32 double double", mono_fclt, FALSE);
4722 mono_register_opcode_emulation (OP_FCLT_UN, "__emul_fcmp_clt_un", "uint32 double double", mono_fclt_un, FALSE);
4723
4724 register_icall (mono_fload_r4, "mono_fload_r4", "double ptr", FALSE);
4725 register_icall (mono_fstore_r4, "mono_fstore_r4", "void double ptr", FALSE);
4726 register_icall (mono_fload_r4_arg, "mono_fload_r4_arg", "uint32 double", FALSE);
4727 register_icall (mono_isfinite, "mono_isfinite", "uint32 double", FALSE);
4728 #endif
4729
4730 #if SIZEOF_REGISTER == 4
4731 mono_register_opcode_emulation (OP_FCONV_TO_U, "__emul_fconv_to_u", "uint32 double", mono_fconv_u4, TRUE);
4732 #endif
4733
4734 /* other jit icalls */
4735 register_icall (mono_delegate_ctor, "mono_delegate_ctor", "void object object ptr", FALSE);
4736 register_icall (mono_class_static_field_address , "mono_class_static_field_address",
4737 "ptr ptr ptr", FALSE);
4738 register_icall (mono_ldtoken_wrapper, "mono_ldtoken_wrapper", "ptr ptr ptr ptr", FALSE);
4739 register_icall (mono_ldtoken_wrapper_generic_shared, "mono_ldtoken_wrapper_generic_shared",
4740 "ptr ptr ptr ptr", FALSE);
4741 register_icall (mono_get_special_static_data, "mono_get_special_static_data", "ptr int", FALSE);
4742 register_icall (mono_ldstr, "mono_ldstr", "object ptr ptr int32", FALSE);
4743 register_icall (mono_helper_stelem_ref_check, "helper_stelem_ref_check", "void object object", FALSE);
4744 register_icall (mono_object_new, "mono_object_new", "object ptr ptr", FALSE);
4745 register_icall (mono_object_new_specific, "mono_object_new_specific", "object ptr", FALSE);
4746 register_icall (mono_array_new, "mono_array_new", "object ptr ptr int32", FALSE);
4747 register_icall (mono_array_new_specific, "mono_array_new_specific", "object ptr int32", FALSE);
4748 register_icall (mono_runtime_class_init, "mono_runtime_class_init", "void ptr", FALSE);
4749 register_icall (mono_ldftn, "mono_ldftn", "ptr ptr", FALSE);
4750 register_icall (mono_ldvirtfn, "mono_ldvirtfn", "ptr object ptr", FALSE);
4751 register_icall (mono_ldvirtfn_gshared, "mono_ldvirtfn_gshared", "ptr object ptr", FALSE);
4752 register_icall (mono_helper_compile_generic_method, "compile_generic_method", "ptr object ptr ptr", FALSE);
4753 register_icall (mono_helper_ldstr, "helper_ldstr", "object ptr int", FALSE);
4754 register_icall (mono_helper_ldstr_mscorlib, "helper_ldstr_mscorlib", "object int", FALSE);
4755 register_icall (mono_helper_newobj_mscorlib, "helper_newobj_mscorlib", "object int", FALSE);
4756 register_icall (mono_value_copy, "mono_value_copy", "void ptr ptr ptr", FALSE);
4757 register_icall (mono_object_castclass, "mono_object_castclass", "object object ptr", FALSE);
4758 register_icall (mono_break, "mono_break", NULL, TRUE);
4759 register_icall (mono_create_corlib_exception_0, "mono_create_corlib_exception_0", "object int", TRUE);
4760 register_icall (mono_create_corlib_exception_1, "mono_create_corlib_exception_1", "object int object", TRUE);
4761 register_icall (mono_create_corlib_exception_2, "mono_create_corlib_exception_2", "object int object object", TRUE);
4762 register_icall (mono_array_new_1, "mono_array_new_1", "object ptr int", FALSE);
4763 register_icall (mono_array_new_2, "mono_array_new_2", "object ptr int int", FALSE);
4764 #endif
4765
4766 mono_generic_sharing_init ();
4767
4768 #ifdef MONO_ARCH_SIMD_INTRINSICS
4769 mono_simd_intrinsics_init ();
4770 #endif
4771
4772 if (mono_compile_aot)
4773 /*
4774 * Avoid running managed code when AOT compiling, since the platform
4775 * might only support aot-only execution.
4776 */
4777 mono_runtime_set_no_exec (TRUE);
4778
4779 #define JIT_RUNTIME_WORKS
4780 #ifdef JIT_RUNTIME_WORKS
4781 mono_install_runtime_cleanup ((MonoDomainFunc)mini_cleanup);
4782 mono_runtime_init (domain, mono_thread_start_cb, mono_thread_attach_cb);
4783 mono_thread_attach (domain);
4784 #endif
4785
4786 mono_profiler_runtime_initialized ();
4787
4788 MONO_PROBE_VES_INIT_END ();
4789
4790 return domain;
4791 }
4792
4793 MonoJitStats mono_jit_stats = {0};
4794
4795 static void
4796 print_jit_stats (void)
4797 {
4798 if (mono_jit_stats.enabled) {
4799 g_print ("Mono Jit statistics\n");
4800 g_print ("Compiled methods: %ld\n", mono_jit_stats.methods_compiled);
4801 g_print ("Methods from AOT: %ld\n", mono_jit_stats.methods_aot);
4802 g_print ("Methods cache lookup: %ld\n", mono_jit_stats.methods_lookups);
4803 g_print ("Method trampolines: %ld\n", mono_jit_stats.method_trampolines);
4804 g_print ("Basic blocks: %ld\n", mono_jit_stats.basic_blocks);
4805 g_print ("Max basic blocks: %ld\n", mono_jit_stats.max_basic_blocks);
4806 g_print ("Allocated vars: %ld\n", mono_jit_stats.allocate_var);
4807 g_print ("Compiled CIL code size: %ld\n", mono_jit_stats.cil_code_size);
4808 g_print ("Native code size: %ld\n", mono_jit_stats.native_code_size);
4809 g_print ("Max code size ratio: %.2f (%s)\n", mono_jit_stats.max_code_size_ratio/100.0,
4810 mono_jit_stats.max_ratio_method);
4811 g_print ("Biggest method: %ld (%s)\n", mono_jit_stats.biggest_method_size,
4812 mono_jit_stats.biggest_method);
4813 g_print ("Code reallocs: %ld\n", mono_jit_stats.code_reallocs);
4814 g_print ("Allocated code size: %ld\n", mono_jit_stats.allocated_code_size);
4815 g_print ("Inlineable methods: %ld\n", mono_jit_stats.inlineable_methods);
4816 g_print ("Inlined methods: %ld\n", mono_jit_stats.inlined_methods);
4817 g_print ("Regvars: %ld\n", mono_jit_stats.regvars);
4818 g_print ("Locals stack size: %ld\n", mono_jit_stats.locals_stack_size);
4819
4820 g_print ("\nCreated object count: %ld\n", mono_stats.new_object_count);
4821 g_print ("Delegates created: %ld\n", mono_stats.delegate_creations);
4822 g_print ("Initialized classes: %ld\n", mono_stats.initialized_class_count);
4823 g_print ("Used classes: %ld\n", mono_stats.used_class_count);
4824 g_print ("Generic vtables: %ld\n", mono_stats.generic_vtable_count);
4825 g_print ("Methods: %ld\n", mono_stats.method_count);
4826 g_print ("Static data size: %ld\n", mono_stats.class_static_data_size);
4827 g_print ("VTable data size: %ld\n", mono_stats.class_vtable_size);
4828 g_print ("Mscorlib mempool size: %d\n", mono_mempool_get_allocated (mono_defaults.corlib->mempool));
4829
4830 g_print ("\nInitialized classes: %ld\n", mono_stats.generic_class_count);
4831 g_print ("Inflated types: %ld\n", mono_stats.inflated_type_count);
4832 g_print ("Generics virtual invokes: %ld\n", mono_jit_stats.generic_virtual_invocations);
4833
4834 g_print ("Sharable generic methods: %ld\n", mono_stats.generics_sharable_methods);
4835 g_print ("Unsharable generic methods: %ld\n", mono_stats.generics_unsharable_methods);
4836 g_print ("Shared generic methods: %ld\n", mono_stats.generics_shared_methods);
4837
4838 g_print ("Dynamic code allocs: %ld\n", mono_stats.dynamic_code_alloc_count);
4839 g_print ("Dynamic code bytes: %ld\n", mono_stats.dynamic_code_bytes_count);
4840 g_print ("Dynamic code frees: %ld\n", mono_stats.dynamic_code_frees_count);
4841
4842 g_print ("IMT tables size: %ld\n", mono_stats.imt_tables_size);
4843 g_print ("IMT number of tables: %ld\n", mono_stats.imt_number_of_tables);
4844 g_print ("IMT number of methods: %ld\n", mono_stats.imt_number_of_methods);
4845 g_print ("IMT used slots: %ld\n", mono_stats.imt_used_slots);
4846 g_print ("IMT colliding slots: %ld\n", mono_stats.imt_slots_with_collisions);
4847 g_print ("IMT max collisions: %ld\n", mono_stats.imt_max_collisions_in_slot);
4848 g_print ("IMT methods at max col: %ld\n", mono_stats.imt_method_count_when_max_collisions);
4849 g_print ("IMT thunks size: %ld\n", mono_stats.imt_thunks_size);
4850
4851 g_print ("JIT info table inserts: %ld\n", mono_stats.jit_info_table_insert_count);
4852 g_print ("JIT info table removes: %ld\n", mono_stats.jit_info_table_remove_count);
4853 g_print ("JIT info table lookups: %ld\n", mono_stats.jit_info_table_lookup_count);
4854
4855 g_print ("Hazardous pointers: %ld\n", mono_stats.hazardous_pointer_count);
4856 #ifdef HAVE_SGEN_GC
4857 g_print ("Minor GC collections: %ld\n", mono_stats.minor_gc_count);
4858 #endif
4859 g_print ("Major GC collections: %ld\n", mono_stats.major_gc_count);
4860 #ifdef HAVE_SGEN_GC
4861 g_print ("Minor GC time in msecs: %lf\n", (double)mono_stats.minor_gc_time_usecs / 1000.0);
4862 #endif
4863 g_print ("Major GC time in msecs: %lf\n", (double)mono_stats.major_gc_time_usecs / 1000.0);
4864 if (mono_security_get_mode () == MONO_SECURITY_MODE_CAS) {
4865 g_print ("\nDecl security check : %ld\n", mono_jit_stats.cas_declsec_check);
4866 g_print ("LinkDemand (user) : %ld\n", mono_jit_stats.cas_linkdemand);
4867 g_print ("LinkDemand (icall) : %ld\n", mono_jit_stats.cas_linkdemand_icall);
4868 g_print ("LinkDemand (pinvoke) : %ld\n", mono_jit_stats.cas_linkdemand_pinvoke);
4869 g_print ("LinkDemand (aptc) : %ld\n", mono_jit_stats.cas_linkdemand_aptc);
4870 g_print ("Demand (code gen) : %ld\n", mono_jit_stats.cas_demand_generation);
4871 }
4872
4873 g_free (mono_jit_stats.max_ratio_method);
4874 mono_jit_stats.max_ratio_method = NULL;
4875 g_free (mono_jit_stats.biggest_method);
4876 mono_jit_stats.biggest_method = NULL;
4877 }
4878 }
4879
4880 void
4881 mini_cleanup (MonoDomain *domain)
4882 {
4883 mono_runtime_shutdown_stat_profiler ();
4884
4885 #ifndef DISABLE_COM
4886 cominterop_release_all_rcws ();
4887 #endif
4888
4889 /*
4890 * mono_runtime_cleanup() and mono_domain_finalize () need to
4891 * be called early since they need the execution engine still
4892 * fully working (mono_domain_finalize may invoke managed finalizers
4893 * and mono_runtime_cleanup will wait for other threads to finish).
4894 */
4895 mono_domain_finalize (domain, 2000);
4896
4897 /* This accesses metadata so needs to be called before runtime shutdown */
4898 print_jit_stats ();
4899
4900 mono_runtime_cleanup (domain);
4901
4902 mono_profiler_shutdown ();
4903
4904 mono_icall_cleanup ();
4905
4906 mono_runtime_cleanup_handlers ();
4907
4908 mono_domain_free (domain, TRUE);
4909
4910 mono_debugger_cleanup ();
4911
4912 mono_trampolines_cleanup ();
4913
4914 mono_unwind_cleanup ();
4915
4916 if (!mono_dont_free_global_codeman)
4917 mono_code_manager_destroy (global_codeman);
4918 g_hash_table_destroy (jit_icall_name_hash);
4919 g_free (emul_opcode_map);
4920
4921 mono_arch_cleanup ();
4922
4923 mono_cleanup ();
4924
4925 mono_trace_cleanup ();
4926
4927 mono_counters_dump (-1, stdout);
4928
4929 if (mono_inject_async_exc_method)
4930 mono_method_desc_free (mono_inject_async_exc_method);
4931
4932 TlsFree(mono_jit_tls_id);
4933
4934 DeleteCriticalSection (&jit_mutex);
4935
4936 DeleteCriticalSection (&mono_delegate_section);
4937 }
4938
4939 void
4940 mono_set_defaults (int verbose_level, guint32 opts)
4941 {
4942 mini_verbose = verbose_level;
4943 default_opt = opts;
4944 default_opt_set = TRUE;
4945 }
4946
4947 /*
4948 * mono_get_runtime_build_info:
4949 *
4950 * Return the runtime version + build date in string format.
4951 * The returned string is owned by the caller.
4952 */
4953 char*
4954 mono_get_runtime_build_info (void)
4955 {
4956 if (mono_build_date)
4957 return g_strdup_printf ("%s %s", FULL_VERSION, mono_build_date);
4958 else
4959 return g_strdup_printf ("%s", FULL_VERSION);
4960 }
4961
4962 static void
4963 mono_precompile_assembly (MonoAssembly *ass, void *user_data)
4964 {
4965 GHashTable *assemblies = (GHashTable*)user_data;
4966 MonoImage *image = mono_assembly_get_image (ass);
4967 MonoMethod *method, *invoke;
4968 int i, count = 0;
4969
4970 if (g_hash_table_lookup (assemblies, ass))
4971 return;
4972
4973 g_hash_table_insert (assemblies, ass, ass);
4974
4975 if (mini_verbose > 0)
4976 printf ("PRECOMPILE: %s.\n", mono_image_get_filename (image));
4977
4978 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
4979 method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
4980 if (method->flags & METHOD_ATTRIBUTE_ABSTRACT)
4981 continue;
4982
4983 count++;
4984 if (mini_verbose > 1) {
4985 char * desc = mono_method_full_name (method, TRUE);
4986 g_print ("Compiling %d %s\n", count, desc);
4987 g_free (desc);
4988 }
4989 mono_compile_method (method);
4990 if (strcmp (method->name, "Finalize") == 0) {
4991 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
4992 mono_compile_method (invoke);
4993 }
4994 if (method->klass->marshalbyref && mono_method_signature (method)->hasthis) {
4995 invoke = mono_marshal_get_remoting_invoke_with_check (method);
4996 mono_compile_method (invoke);
4997 }
4998 }
4999
5000 /* Load and precompile referenced assemblies as well */
5001 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_ASSEMBLYREF); ++i) {
5002 mono_assembly_load_reference (image, i);
5003 if (image->references [i])
5004 mono_precompile_assembly (image->references [i], assemblies);
5005 }
5006 }
5007
5008 void mono_precompile_assemblies ()
5009 {
5010 GHashTable *assemblies = g_hash_table_new (NULL, NULL);
5011
5012 mono_assembly_foreach ((GFunc)mono_precompile_assembly, assemblies);
5013
5014 g_hash_table_destroy (assemblies);
5015 }
Mono Debugger - Cloned from the original SVN repository at mono-cvs.ximian.com