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2010-06-21 Rodrigo Kumpera <rkumpera@novell.com>
[mono.git] / mono / mini / mini.c
bloba7199cdd56ffdbb4cb7013637c1fb1855824098e
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 #include <mono/utils/memcheck.h>
25
26 #include <mono/metadata/assembly.h>
27 #include <mono/metadata/loader.h>
28 #include <mono/metadata/tabledefs.h>
29 #include <mono/metadata/class.h>
30 #include <mono/metadata/object.h>
31 #include <mono/metadata/tokentype.h>
32 #include <mono/metadata/tabledefs.h>
33 #include <mono/metadata/threads.h>
34 #include <mono/metadata/appdomain.h>
35 #include <mono/metadata/debug-helpers.h>
36 #include <mono/io-layer/io-layer.h>
37 #include "mono/metadata/profiler.h"
38 #include <mono/metadata/profiler-private.h>
39 #include <mono/metadata/mono-config.h>
40 #include <mono/metadata/environment.h>
41 #include <mono/metadata/mono-debug.h>
42 #include <mono/metadata/gc-internal.h>
43 #include <mono/metadata/threads-types.h>
44 #include <mono/metadata/verify.h>
45 #include <mono/metadata/verify-internals.h>
46 #include <mono/metadata/mempool-internals.h>
47 #include <mono/metadata/attach.h>
48 #include <mono/metadata/runtime.h>
49 #include <mono/utils/mono-math.h>
50 #include <mono/utils/mono-compiler.h>
51 #include <mono/utils/mono-counters.h>
52 #include <mono/utils/mono-logger-internal.h>
53 #include <mono/utils/mono-mmap.h>
54 #include <mono/utils/dtrace.h>
55
56 #include "mini.h"
57 #include "tasklets.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 #include "mini-gc.h"
67 #include "debugger-agent.h"
68
69 static gpointer mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt, MonoException **ex);
70
71 /* helper methods signature */
72 /* FIXME: Make these static again */
73 MonoMethodSignature *helper_sig_class_init_trampoline = NULL;
74 MonoMethodSignature *helper_sig_domain_get = NULL;
75 MonoMethodSignature *helper_sig_generic_class_init_trampoline = NULL;
76 MonoMethodSignature *helper_sig_generic_class_init_trampoline_llvm = NULL;
77 MonoMethodSignature *helper_sig_rgctx_lazy_fetch_trampoline = NULL;
78 MonoMethodSignature *helper_sig_monitor_enter_exit_trampoline = NULL;
79 MonoMethodSignature *helper_sig_monitor_enter_exit_trampoline_llvm = NULL;
80
81 static guint32 default_opt = 0;
82 static gboolean default_opt_set = FALSE;
83
84 guint32 mono_jit_tls_id = -1;
85
86 #ifdef HAVE_KW_THREAD
87 static __thread gpointer mono_jit_tls MONO_TLS_FAST;
88 #endif
89
90 MonoTraceSpec *mono_jit_trace_calls = NULL;
91 gboolean mono_break_on_exc = FALSE;
92 gboolean mono_compile_aot = FALSE;
93 /* If this is set, no code is generated dynamically, everything is taken from AOT files */
94 gboolean mono_aot_only = FALSE;
95 /* Whenever to use IMT */
96 #ifdef MONO_ARCH_HAVE_IMT
97 gboolean mono_use_imt = TRUE;
98 #else
99 gboolean mono_use_imt = FALSE;
100 #endif
101 MonoMethodDesc *mono_inject_async_exc_method = NULL;
102 int mono_inject_async_exc_pos;
103 MonoMethodDesc *mono_break_at_bb_method = NULL;
104 int mono_break_at_bb_bb_num;
105 gboolean mono_do_x86_stack_align = TRUE;
106 const char *mono_build_date;
107 gboolean mono_do_signal_chaining;
108 static gboolean mono_using_xdebug;
109 static int mini_verbose = 0;
110
111 /* Statistics */
112 #ifdef ENABLE_LLVM
113 static int methods_with_llvm, methods_without_llvm;
114 #endif
115
116 /*
117 * This flag controls whenever the runtime uses LLVM compiled code.
118 * Enabling this causes different/slower code paths to be used, which is why it
119 * defaults to FALSE.
120 * Changes when this flag is set include:
121 * - a per method vtable trampoline is used to handle virtual calls, instead of only
122 * one trampoline.
123 * - fast generic virtual calls are not supported.
124 */
125 #ifdef ENABLE_LLVM
126 gboolean mono_use_llvm = TRUE;
127 #else
128 gboolean mono_use_llvm = FALSE;
129 #endif
130
131 #define mono_jit_lock() EnterCriticalSection (&jit_mutex)
132 #define mono_jit_unlock() LeaveCriticalSection (&jit_mutex)
133 static CRITICAL_SECTION jit_mutex;
134
135 static MonoCodeManager *global_codeman = NULL;
136
137 static GHashTable *jit_icall_name_hash = NULL;
138
139 static MonoDebugOptions debug_options;
140
141 #ifdef VALGRIND_JIT_REGISTER_MAP
142 static int valgrind_register = 0;
143 #endif
144
145 /*
146 * Table written to by the debugger with a 1-based index into the
147 * mono_breakpoint_info table, which contains changes made to
148 * the JIT instructions by the debugger.
149 */
150 gssize
151 mono_breakpoint_info_index [MONO_BREAKPOINT_ARRAY_SIZE];
152
153 /* Whenever to check for pending exceptions in managed-to-native wrappers */
154 gboolean check_for_pending_exc = TRUE;
155
156 /* Whenever to disable passing/returning small valuetypes in registers for managed methods */
157 gboolean disable_vtypes_in_regs = FALSE;
158
159 gboolean mono_dont_free_global_codeman;
160
161 gboolean
162 mono_running_on_valgrind (void)
163 {
164 if (RUNNING_ON_VALGRIND){
165 #ifdef VALGRIND_JIT_REGISTER_MAP
166 valgrind_register = TRUE;
167 #endif
168 return TRUE;
169 } else
170 return FALSE;
171 }
172
173 typedef struct {
174 MonoExceptionClause *clause;
175 MonoBasicBlock *basic_block;
176 int start_offset;
177 } TryBlockHole;
178
179 typedef struct {
180 void *ip;
181 MonoMethod *method;
182 } FindTrampUserData;
183
184 static void
185 find_tramp (gpointer key, gpointer value, gpointer user_data)
186 {
187 FindTrampUserData *ud = (FindTrampUserData*)user_data;
188
189 if (value == ud->ip)
190 ud->method = (MonoMethod*)key;
191 }
192
193 /* debug function */
194 G_GNUC_UNUSED static char*
195 get_method_from_ip (void *ip)
196 {
197 MonoJitInfo *ji;
198 char *method;
199 char *res;
200 MonoDomain *domain = mono_domain_get ();
201 MonoDebugSourceLocation *location;
202 FindTrampUserData user_data;
203
204 ji = mono_jit_info_table_find (domain, ip);
205 if (!ji) {
206 user_data.ip = ip;
207 user_data.method = NULL;
208 mono_domain_lock (domain);
209 g_hash_table_foreach (domain_jit_info (domain)->jit_trampoline_hash, find_tramp, &user_data);
210 mono_domain_unlock (domain);
211 if (user_data.method) {
212 char *mname = mono_method_full_name (user_data.method, TRUE);
213 res = g_strdup_printf ("<%p - JIT trampoline for %s>", ip, mname);
214 g_free (mname);
215 return res;
216 }
217 else
218 return NULL;
219 }
220 method = mono_method_full_name (ji->method, TRUE);
221 /* FIXME: unused ? */
222 location = mono_debug_lookup_source_location (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), domain);
223
224 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);
225
226 mono_debug_free_source_location (location);
227 g_free (method);
228
229 return res;
230 }
231
232 /**
233 * mono_pmip:
234 * @ip: an instruction pointer address
235 *
236 * This method is used from a debugger to get the name of the
237 * method at address @ip. This routine is typically invoked from
238 * a debugger like this:
239 *
240 * (gdb) print mono_pmip ($pc)
241 *
242 * Returns: the name of the method at address @ip.
243 */
244 G_GNUC_UNUSED char *
245 mono_pmip (void *ip)
246 {
247 return get_method_from_ip (ip);
248 }
249
250 /**
251 * mono_print_method_from_ip
252 * @ip: an instruction pointer address
253 *
254 * This method is used from a debugger to get the name of the
255 * method at address @ip.
256 *
257 * This prints the name of the method at address @ip in the standard
258 * output. Unlike mono_pmip which returns a string, this routine
259 * prints the value on the standard output.
260 */
261 void
262 mono_print_method_from_ip (void *ip)
263 {
264 MonoJitInfo *ji;
265 char *method;
266 MonoDebugSourceLocation *source;
267 MonoDomain *domain = mono_domain_get ();
268 MonoDomain *target_domain = mono_domain_get ();
269 FindTrampUserData user_data;
270
271 ji = mini_jit_info_table_find (domain, ip, &target_domain);
272 if (!ji) {
273 user_data.ip = ip;
274 user_data.method = NULL;
275 mono_domain_lock (domain);
276 g_hash_table_foreach (domain_jit_info (domain)->jit_trampoline_hash, find_tramp, &user_data);
277 mono_domain_unlock (domain);
278 if (user_data.method) {
279 char *mname = mono_method_full_name (user_data.method, TRUE);
280 printf ("IP %p is a JIT trampoline for %s\n", ip, mname);
281 g_free (mname);
282 }
283 else
284 g_print ("No method at %p\n", ip);
285 return;
286 }
287 method = mono_method_full_name (ji->method, TRUE);
288 source = mono_debug_lookup_source_location (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), target_domain);
289
290 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, target_domain, target_domain->friendly_name);
291
292 if (source)
293 g_print ("%s:%d\n", source->source_file, source->row);
294
295 mono_debug_free_source_location (source);
296 g_free (method);
297 }
298
299 /*
300 * mono_method_same_domain:
301 *
302 * Determine whenever two compiled methods are in the same domain, thus
303 * the address of the callee can be embedded in the caller.
304 */
305 gboolean mono_method_same_domain (MonoJitInfo *caller, MonoJitInfo *callee)
306 {
307 if (!caller || !callee)
308 return FALSE;
309
310 /*
311 * If the call was made from domain-neutral to domain-specific
312 * code, we can't patch the call site.
313 */
314 if (caller->domain_neutral && !callee->domain_neutral)
315 return FALSE;
316
317 if ((caller->method->klass == mono_defaults.appdomain_class) &&
318 (strstr (caller->method->name, "InvokeInDomain"))) {
319 /* The InvokeInDomain methods change the current appdomain */
320 return FALSE;
321 }
322
323 return TRUE;
324 }
325
326 /*
327 * mono_global_codeman_reserve:
328 *
329 * Allocate code memory from the global code manager.
330 */
331 void *mono_global_codeman_reserve (int size)
332 {
333 void *ptr;
334
335 if (mono_aot_only)
336 g_error ("Attempting to allocate from the global code manager while running with --aot-only.\n");
337
338 if (!global_codeman) {
339 /* This can happen during startup */
340 global_codeman = mono_code_manager_new ();
341 return mono_code_manager_reserve (global_codeman, size);
342 }
343 else {
344 mono_jit_lock ();
345 ptr = mono_code_manager_reserve (global_codeman, size);
346 mono_jit_unlock ();
347 return ptr;
348 }
349 }
350
351 /**
352 * mono_create_unwind_op:
353 *
354 * Create an unwind op with the given parameters.
355 */
356 MonoUnwindOp*
357 mono_create_unwind_op (int when, int tag, int reg, int val)
358 {
359 MonoUnwindOp *op = g_new0 (MonoUnwindOp, 1);
360
361 op->op = tag;
362 op->reg = reg;
363 op->val = val;
364 op->when = when;
365
366 return op;
367 }
368
369 /**
370 * mono_emit_unwind_op:
371 *
372 * Add an unwind op with the given parameters for the list of unwind ops stored in
373 * cfg->unwind_ops.
374 */
375 void
376 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
377 {
378 MonoUnwindOp *op = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
379
380 op->op = tag;
381 op->reg = reg;
382 op->val = val;
383 op->when = when;
384
385 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
386 }
387
388 MonoJumpInfoToken *
389 mono_jump_info_token_new2 (MonoMemPool *mp, MonoImage *image, guint32 token, MonoGenericContext *context)
390 {
391 MonoJumpInfoToken *res = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoToken));
392 res->image = image;
393 res->token = token;
394 res->has_context = context != NULL;
395 if (context)
396 memcpy (&res->context, context, sizeof (MonoGenericContext));
397
398 return res;
399 }
400
401 MonoJumpInfoToken *
402 mono_jump_info_token_new (MonoMemPool *mp, MonoImage *image, guint32 token)
403 {
404 return mono_jump_info_token_new2 (mp, image, token, NULL);
405 }
406
407 /*
408 * mono_tramp_info_create:
409 *
410 * Create a MonoTrampInfo structure from the arguments. This function assumes ownership
411 * of NAME, JI, and UNWIND_OPS.
412 */
413 MonoTrampInfo*
414 mono_tramp_info_create (const char *name, guint8 *code, guint32 code_size, MonoJumpInfo *ji, GSList *unwind_ops)
415 {
416 MonoTrampInfo *info = g_new0 (MonoTrampInfo, 1);
417
418 info->name = (char*)name;
419 info->code = code;
420 info->code_size = code_size;
421 info->ji = ji;
422 info->unwind_ops = unwind_ops;
423
424 return info;
425 }
426
427 void
428 mono_tramp_info_free (MonoTrampInfo *info)
429 {
430 g_free (info->name);
431
432 // FIXME: ji + unwind_ops
433 }
434
435 #define MONO_INIT_VARINFO(vi,id) do { \
436 (vi)->range.first_use.pos.bid = 0xffff; \
437 (vi)->reg = -1; \
438 (vi)->idx = (id); \
439 } while (0)
440
441 /**
442 * mono_unlink_bblock:
443 *
444 * Unlink two basic blocks.
445 */
446 void
447 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
448 {
449 int i, pos;
450 gboolean found;
451
452 found = FALSE;
453 for (i = 0; i < from->out_count; ++i) {
454 if (to == from->out_bb [i]) {
455 found = TRUE;
456 break;
457 }
458 }
459 if (found) {
460 pos = 0;
461 for (i = 0; i < from->out_count; ++i) {
462 if (from->out_bb [i] != to)
463 from->out_bb [pos ++] = from->out_bb [i];
464 }
465 g_assert (pos == from->out_count - 1);
466 from->out_count--;
467 }
468
469 found = FALSE;
470 for (i = 0; i < to->in_count; ++i) {
471 if (from == to->in_bb [i]) {
472 found = TRUE;
473 break;
474 }
475 }
476 if (found) {
477 pos = 0;
478 for (i = 0; i < to->in_count; ++i) {
479 if (to->in_bb [i] != from)
480 to->in_bb [pos ++] = to->in_bb [i];
481 }
482 g_assert (pos == to->in_count - 1);
483 to->in_count--;
484 }
485 }
486
487 /*
488 * mono_bblocks_linked:
489 *
490 * Return whenever BB1 and BB2 are linked in the CFG.
491 */
492 gboolean
493 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
494 {
495 int i;
496
497 for (i = 0; i < bb1->out_count; ++i) {
498 if (bb1->out_bb [i] == bb2)
499 return TRUE;
500 }
501
502 return FALSE;
503 }
504
505 static int
506 mono_find_block_region_notry (MonoCompile *cfg, int offset)
507 {
508 MonoMethodHeader *header = cfg->header;
509 MonoExceptionClause *clause;
510 int i;
511
512 for (i = 0; i < header->num_clauses; ++i) {
513 clause = &header->clauses [i];
514 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
515 (offset < (clause->handler_offset)))
516 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
517
518 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
519 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
520 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
521 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
522 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
523 else
524 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
525 }
526 }
527
528 return -1;
529 }
530
531 /*
532 * mono_get_block_region_notry:
533 *
534 * Return the region corresponding to REGION, ignoring try clauses nested inside
535 * finally clauses.
536 */
537 int
538 mono_get_block_region_notry (MonoCompile *cfg, int region)
539 {
540 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
541 MonoMethodHeader *header = cfg->header;
542
543 /*
544 * This can happen if a try clause is nested inside a finally clause.
545 */
546 int clause_index = (region >> 8) - 1;
547 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
548
549 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
550 }
551
552 return region;
553 }
554
555 MonoInst *
556 mono_find_spvar_for_region (MonoCompile *cfg, int region)
557 {
558 region = mono_get_block_region_notry (cfg, region);
559
560 return g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
561 }
562
563 static void
564 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
565 {
566 int i;
567
568 array [*dfn] = start;
569 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
570 for (i = 0; i < start->out_count; ++i) {
571 if (start->out_bb [i]->dfn)
572 continue;
573 (*dfn)++;
574 start->out_bb [i]->dfn = *dfn;
575 start->out_bb [i]->df_parent = start;
576 array [*dfn] = start->out_bb [i];
577 df_visit (start->out_bb [i], dfn, array);
578 }
579 }
580
581 guint32
582 mono_reverse_branch_op (guint32 opcode)
583 {
584 static const int reverse_map [] = {
585 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
586 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
587 };
588 static const int reverse_fmap [] = {
589 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
590 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
591 };
592 static const int reverse_lmap [] = {
593 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
594 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
595 };
596 static const int reverse_imap [] = {
597 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
598 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
599 };
600
601 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
602 opcode = reverse_map [opcode - CEE_BEQ];
603 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
604 opcode = reverse_fmap [opcode - OP_FBEQ];
605 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
606 opcode = reverse_lmap [opcode - OP_LBEQ];
607 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
608 opcode = reverse_imap [opcode - OP_IBEQ];
609 } else
610 g_assert_not_reached ();
611
612 return opcode;
613 }
614
615 guint
616 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
617 {
618 if (type->byref)
619 return OP_STORE_MEMBASE_REG;
620
621 handle_enum:
622 switch (type->type) {
623 case MONO_TYPE_I1:
624 case MONO_TYPE_U1:
625 case MONO_TYPE_BOOLEAN:
626 return OP_STOREI1_MEMBASE_REG;
627 case MONO_TYPE_I2:
628 case MONO_TYPE_U2:
629 case MONO_TYPE_CHAR:
630 return OP_STOREI2_MEMBASE_REG;
631 case MONO_TYPE_I4:
632 case MONO_TYPE_U4:
633 return OP_STOREI4_MEMBASE_REG;
634 case MONO_TYPE_I:
635 case MONO_TYPE_U:
636 case MONO_TYPE_PTR:
637 case MONO_TYPE_FNPTR:
638 return OP_STORE_MEMBASE_REG;
639 case MONO_TYPE_CLASS:
640 case MONO_TYPE_STRING:
641 case MONO_TYPE_OBJECT:
642 case MONO_TYPE_SZARRAY:
643 case MONO_TYPE_ARRAY:
644 return OP_STORE_MEMBASE_REG;
645 case MONO_TYPE_I8:
646 case MONO_TYPE_U8:
647 return OP_STOREI8_MEMBASE_REG;
648 case MONO_TYPE_R4:
649 return OP_STORER4_MEMBASE_REG;
650 case MONO_TYPE_R8:
651 return OP_STORER8_MEMBASE_REG;
652 case MONO_TYPE_VALUETYPE:
653 if (type->data.klass->enumtype) {
654 type = mono_class_enum_basetype (type->data.klass);
655 goto handle_enum;
656 }
657 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
658 return OP_STOREX_MEMBASE;
659 return OP_STOREV_MEMBASE;
660 case MONO_TYPE_TYPEDBYREF:
661 return OP_STOREV_MEMBASE;
662 case MONO_TYPE_GENERICINST:
663 type = &type->data.generic_class->container_class->byval_arg;
664 goto handle_enum;
665 case MONO_TYPE_VAR:
666 case MONO_TYPE_MVAR:
667 /* FIXME: all the arguments must be references for now,
668 * later look inside cfg and see if the arg num is
669 * really a reference
670 */
671 g_assert (cfg->generic_sharing_context);
672 return OP_STORE_MEMBASE_REG;
673 default:
674 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
675 }
676 return -1;
677 }
678
679 guint
680 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
681 {
682 if (type->byref)
683 return OP_LOAD_MEMBASE;
684
685 type = mono_type_get_underlying_type (type);
686
687 switch (type->type) {
688 case MONO_TYPE_I1:
689 return OP_LOADI1_MEMBASE;
690 case MONO_TYPE_U1:
691 case MONO_TYPE_BOOLEAN:
692 return OP_LOADU1_MEMBASE;
693 case MONO_TYPE_I2:
694 return OP_LOADI2_MEMBASE;
695 case MONO_TYPE_U2:
696 case MONO_TYPE_CHAR:
697 return OP_LOADU2_MEMBASE;
698 case MONO_TYPE_I4:
699 return OP_LOADI4_MEMBASE;
700 case MONO_TYPE_U4:
701 return OP_LOADU4_MEMBASE;
702 case MONO_TYPE_I:
703 case MONO_TYPE_U:
704 case MONO_TYPE_PTR:
705 case MONO_TYPE_FNPTR:
706 return OP_LOAD_MEMBASE;
707 case MONO_TYPE_CLASS:
708 case MONO_TYPE_STRING:
709 case MONO_TYPE_OBJECT:
710 case MONO_TYPE_SZARRAY:
711 case MONO_TYPE_ARRAY:
712 return OP_LOAD_MEMBASE;
713 case MONO_TYPE_I8:
714 case MONO_TYPE_U8:
715 return OP_LOADI8_MEMBASE;
716 case MONO_TYPE_R4:
717 return OP_LOADR4_MEMBASE;
718 case MONO_TYPE_R8:
719 return OP_LOADR8_MEMBASE;
720 case MONO_TYPE_VALUETYPE:
721 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
722 return OP_LOADX_MEMBASE;
723 case MONO_TYPE_TYPEDBYREF:
724 return OP_LOADV_MEMBASE;
725 case MONO_TYPE_GENERICINST:
726 if (mono_type_generic_inst_is_valuetype (type))
727 return OP_LOADV_MEMBASE;
728 else
729 return OP_LOAD_MEMBASE;
730 break;
731 case MONO_TYPE_VAR:
732 case MONO_TYPE_MVAR:
733 /* FIXME: all the arguments must be references for now,
734 * later look inside cfg and see if the arg num is
735 * really a reference
736 */
737 g_assert (cfg->generic_sharing_context);
738 return OP_LOAD_MEMBASE;
739 default:
740 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
741 }
742 return -1;
743 }
744
745 static guint
746 mini_type_to_ldind (MonoCompile* cfg, MonoType *type)
747 {
748 if (cfg->generic_sharing_context && !type->byref) {
749 /* FIXME: all the arguments must be references for now,
750 * later look inside cfg and see if the arg num is
751 * really a reference
752 */
753 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
754 return CEE_LDIND_REF;
755 }
756 return mono_type_to_ldind (type);
757 }
758
759 guint
760 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
761 {
762 if (cfg->generic_sharing_context && !type->byref) {
763 /* FIXME: all the arguments must be references for now,
764 * later look inside cfg and see if the arg num is
765 * really a reference
766 */
767 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
768 return CEE_STIND_REF;
769 }
770 return mono_type_to_stind (type);
771 }
772
773 int
774 mono_op_imm_to_op (int opcode)
775 {
776 switch (opcode) {
777 case OP_ADD_IMM:
778 #if SIZEOF_REGISTER == 4
779 return OP_IADD;
780 #else
781 return OP_LADD;
782 #endif
783 case OP_IADD_IMM:
784 return OP_IADD;
785 case OP_LADD_IMM:
786 return OP_LADD;
787 case OP_ISUB_IMM:
788 return OP_ISUB;
789 case OP_LSUB_IMM:
790 return OP_LSUB;
791 case OP_IMUL_IMM:
792 return OP_IMUL;
793 case OP_AND_IMM:
794 #if SIZEOF_REGISTER == 4
795 return OP_IAND;
796 #else
797 return OP_LAND;
798 #endif
799 case OP_OR_IMM:
800 #if SIZEOF_REGISTER == 4
801 return OP_IOR;
802 #else
803 return OP_LOR;
804 #endif
805 case OP_XOR_IMM:
806 #if SIZEOF_REGISTER == 4
807 return OP_IXOR;
808 #else
809 return OP_LXOR;
810 #endif
811 case OP_IAND_IMM:
812 return OP_IAND;
813 case OP_LAND_IMM:
814 return OP_LAND;
815 case OP_IOR_IMM:
816 return OP_IOR;
817 case OP_LOR_IMM:
818 return OP_LOR;
819 case OP_IXOR_IMM:
820 return OP_IXOR;
821 case OP_LXOR_IMM:
822 return OP_LXOR;
823 case OP_ISHL_IMM:
824 return OP_ISHL;
825 case OP_LSHL_IMM:
826 return OP_LSHL;
827 case OP_ISHR_IMM:
828 return OP_ISHR;
829 case OP_LSHR_IMM:
830 return OP_LSHR;
831 case OP_ISHR_UN_IMM:
832 return OP_ISHR_UN;
833 case OP_LSHR_UN_IMM:
834 return OP_LSHR_UN;
835 case OP_IDIV_IMM:
836 return OP_IDIV;
837 case OP_IDIV_UN_IMM:
838 return OP_IDIV_UN;
839 case OP_IREM_UN_IMM:
840 return OP_IREM_UN;
841 case OP_IREM_IMM:
842 return OP_IREM;
843 case OP_DIV_IMM:
844 #if SIZEOF_REGISTER == 4
845 return OP_IDIV;
846 #else
847 return OP_LDIV;
848 #endif
849 case OP_REM_IMM:
850 #if SIZEOF_REGISTER == 4
851 return OP_IREM;
852 #else
853 return OP_LREM;
854 #endif
855 case OP_ADDCC_IMM:
856 return OP_ADDCC;
857 case OP_ADC_IMM:
858 return OP_ADC;
859 case OP_SUBCC_IMM:
860 return OP_SUBCC;
861 case OP_SBB_IMM:
862 return OP_SBB;
863 case OP_IADC_IMM:
864 return OP_IADC;
865 case OP_ISBB_IMM:
866 return OP_ISBB;
867 case OP_COMPARE_IMM:
868 return OP_COMPARE;
869 case OP_ICOMPARE_IMM:
870 return OP_ICOMPARE;
871 case OP_LOCALLOC_IMM:
872 return OP_LOCALLOC;
873 default:
874 printf ("%s\n", mono_inst_name (opcode));
875 g_assert_not_reached ();
876 return -1;
877 }
878 }
879
880 /*
881 * mono_decompose_op_imm:
882 *
883 * Replace the OP_.._IMM INS with its non IMM variant.
884 */
885 void
886 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
887 {
888 MonoInst *temp;
889
890 MONO_INST_NEW (cfg, temp, OP_ICONST);
891 temp->inst_c0 = ins->inst_imm;
892 temp->dreg = mono_alloc_ireg (cfg);
893 mono_bblock_insert_before_ins (bb, ins, temp);
894 ins->opcode = mono_op_imm_to_op (ins->opcode);
895 if (ins->opcode == OP_LOCALLOC)
896 ins->sreg1 = temp->dreg;
897 else
898 ins->sreg2 = temp->dreg;
899
900 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
901 }
902
903 static void
904 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
905 {
906 if (vreg >= cfg->vreg_to_inst_len) {
907 MonoInst **tmp = cfg->vreg_to_inst;
908 int size = cfg->vreg_to_inst_len;
909
910 while (vreg >= cfg->vreg_to_inst_len)
911 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
912 cfg->vreg_to_inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
913 if (size)
914 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
915 }
916 cfg->vreg_to_inst [vreg] = inst;
917 }
918
919 #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)))
920 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
921
922 #ifdef DISABLE_JIT
923
924 MonoInst*
925 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
926 {
927 return NULL;
928 }
929
930 #else
931
932 MonoInst*
933 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
934 {
935 MonoInst *inst;
936 int num = cfg->num_varinfo;
937 gboolean regpair;
938
939 if ((num + 1) >= cfg->varinfo_count) {
940 int orig_count = cfg->varinfo_count;
941 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 64;
942 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
943 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
944 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
945 }
946
947 mono_jit_stats.allocate_var++;
948
949 MONO_INST_NEW (cfg, inst, opcode);
950 inst->inst_c0 = num;
951 inst->inst_vtype = type;
952 inst->klass = mono_class_from_mono_type (type);
953 type_to_eval_stack_type (cfg, type, inst);
954 /* if set to 1 the variable is native */
955 inst->backend.is_pinvoke = 0;
956 inst->dreg = vreg;
957
958 cfg->varinfo [num] = inst;
959
960 MONO_INIT_VARINFO (&cfg->vars [num], num);
961 MONO_VARINFO (cfg, num)->vreg = vreg;
962
963 if (vreg != -1)
964 set_vreg_to_inst (cfg, vreg, inst);
965
966 #if SIZEOF_REGISTER == 4
967 #ifdef MONO_ARCH_SOFT_FLOAT
968 regpair = mono_type_is_long (type) || mono_type_is_float (type);
969 #else
970 regpair = mono_type_is_long (type);
971 #endif
972 #else
973 regpair = FALSE;
974 #endif
975
976 if (regpair) {
977 MonoInst *tree;
978
979 /*
980 * These two cannot be allocated using create_var_for_vreg since that would
981 * put it into the cfg->varinfo array, confusing many parts of the JIT.
982 */
983
984 /*
985 * Set flags to VOLATILE so SSA skips it.
986 */
987
988 if (cfg->verbose_level >= 4) {
989 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, inst->dreg + 1, inst->dreg + 2);
990 }
991
992 #ifdef MONO_ARCH_SOFT_FLOAT
993 if (cfg->opt & MONO_OPT_SSA) {
994 if (mono_type_is_float (type))
995 inst->flags = MONO_INST_VOLATILE;
996 }
997 #endif
998
999 /* Allocate a dummy MonoInst for the first vreg */
1000 MONO_INST_NEW (cfg, tree, OP_LOCAL);
1001 tree->dreg = inst->dreg + 1;
1002 if (cfg->opt & MONO_OPT_SSA)
1003 tree->flags = MONO_INST_VOLATILE;
1004 tree->inst_c0 = num;
1005 tree->type = STACK_I4;
1006 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
1007 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
1008
1009 set_vreg_to_inst (cfg, inst->dreg + 1, tree);
1010
1011 /* Allocate a dummy MonoInst for the second vreg */
1012 MONO_INST_NEW (cfg, tree, OP_LOCAL);
1013 tree->dreg = inst->dreg + 2;
1014 if (cfg->opt & MONO_OPT_SSA)
1015 tree->flags = MONO_INST_VOLATILE;
1016 tree->inst_c0 = num;
1017 tree->type = STACK_I4;
1018 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
1019 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
1020
1021 set_vreg_to_inst (cfg, inst->dreg + 2, tree);
1022 }
1023
1024 cfg->num_varinfo++;
1025 if (cfg->verbose_level > 2)
1026 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
1027 return inst;
1028 }
1029
1030 MonoInst*
1031 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
1032 {
1033 int dreg;
1034
1035 if (mono_type_is_long (type))
1036 dreg = mono_alloc_dreg (cfg, STACK_I8);
1037 #ifdef MONO_ARCH_SOFT_FLOAT
1038 else if (mono_type_is_float (type))
1039 dreg = mono_alloc_dreg (cfg, STACK_R8);
1040 #endif
1041 else
1042 /* All the others are unified */
1043 dreg = mono_alloc_preg (cfg);
1044
1045 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
1046 }
1047
1048 /*
1049 * Transform a MonoInst into a load from the variable of index var_index.
1050 */
1051 void
1052 mono_compile_make_var_load (MonoCompile *cfg, MonoInst *dest, gssize var_index) {
1053 memset (dest, 0, sizeof (MonoInst));
1054 dest->inst_i0 = cfg->varinfo [var_index];
1055 dest->opcode = mini_type_to_ldind (cfg, dest->inst_i0->inst_vtype);
1056 type_to_eval_stack_type (cfg, dest->inst_i0->inst_vtype, dest);
1057 dest->klass = dest->inst_i0->klass;
1058 }
1059
1060 #endif
1061
1062 static MonoType*
1063 type_from_stack_type (MonoInst *ins) {
1064 switch (ins->type) {
1065 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
1066 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
1067 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
1068 case STACK_R8: return &mono_defaults.double_class->byval_arg;
1069 case STACK_MP:
1070 /*
1071 * this if used to be commented without any specific reason, but
1072 * it breaks #80235 when commented
1073 */
1074 if (ins->klass)
1075 return &ins->klass->this_arg;
1076 else
1077 return &mono_defaults.object_class->this_arg;
1078 case STACK_OBJ:
1079 /* ins->klass may not be set for ldnull.
1080 * Also, if we have a boxed valuetype, we want an object lass,
1081 * not the valuetype class
1082 */
1083 if (ins->klass && !ins->klass->valuetype)
1084 return &ins->klass->byval_arg;
1085 return &mono_defaults.object_class->byval_arg;
1086 case STACK_VTYPE: return &ins->klass->byval_arg;
1087 default:
1088 g_error ("stack type %d to montype not handled\n", ins->type);
1089 }
1090 return NULL;
1091 }
1092
1093 MonoType*
1094 mono_type_from_stack_type (MonoInst *ins) {
1095 return type_from_stack_type (ins);
1096 }
1097
1098 /*
1099 * mono_add_ins_to_end:
1100 *
1101 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
1102 */
1103 void
1104 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
1105 {
1106 int opcode;
1107
1108 if (!bb->code) {
1109 MONO_ADD_INS (bb, inst);
1110 return;
1111 }
1112
1113 switch (bb->last_ins->opcode) {
1114 case OP_BR:
1115 case OP_BR_REG:
1116 case CEE_BEQ:
1117 case CEE_BGE:
1118 case CEE_BGT:
1119 case CEE_BLE:
1120 case CEE_BLT:
1121 case CEE_BNE_UN:
1122 case CEE_BGE_UN:
1123 case CEE_BGT_UN:
1124 case CEE_BLE_UN:
1125 case CEE_BLT_UN:
1126 case OP_SWITCH:
1127 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1128 break;
1129 default:
1130 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
1131 /* Need to insert the ins before the compare */
1132 if (bb->code == bb->last_ins) {
1133 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1134 return;
1135 }
1136
1137 if (bb->code->next == bb->last_ins) {
1138 /* Only two instructions */
1139 opcode = bb->code->opcode;
1140
1141 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)) {
1142 /* NEW IR */
1143 mono_bblock_insert_before_ins (bb, bb->code, inst);
1144 } else {
1145 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1146 }
1147 } else {
1148 opcode = bb->last_ins->prev->opcode;
1149
1150 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)) {
1151 /* NEW IR */
1152 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
1153 } else {
1154 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1155 }
1156 }
1157 }
1158 else
1159 MONO_ADD_INS (bb, inst);
1160 break;
1161 }
1162 }
1163
1164 void
1165 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1166 {
1167 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1168 MonoJumpInfoBBTable *table;
1169
1170 table = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
1171 table->table = bbs;
1172 table->table_size = num_blocks;
1173
1174 ji->ip.label = label;
1175 ji->type = MONO_PATCH_INFO_SWITCH;
1176 ji->data.table = table;
1177 ji->next = cfg->patch_info;
1178 cfg->patch_info = ji;
1179 }
1180
1181 static MonoMethodSignature *
1182 mono_get_array_new_va_signature (int arity)
1183 {
1184 static GHashTable *sighash = NULL;
1185 MonoMethodSignature *res;
1186 int i;
1187
1188 mono_jit_lock ();
1189 if (!sighash) {
1190 sighash = g_hash_table_new (NULL, NULL);
1191 }
1192 else if ((res = g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
1193 mono_jit_unlock ();
1194 return res;
1195 }
1196
1197 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
1198
1199 res->pinvoke = 1;
1200 #ifdef MONO_ARCH_VARARG_ICALLS
1201 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
1202 res->call_convention = MONO_CALL_VARARG;
1203 #endif
1204
1205 #ifdef TARGET_WIN32
1206 res->call_convention = MONO_CALL_C;
1207 #endif
1208
1209 res->params [0] = &mono_defaults.int_class->byval_arg;
1210 for (i = 0; i < arity; i++)
1211 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
1212
1213 res->ret = &mono_defaults.object_class->byval_arg;
1214
1215 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
1216 mono_jit_unlock ();
1217
1218 return res;
1219 }
1220
1221 MonoJitICallInfo *
1222 mono_get_array_new_va_icall (int rank)
1223 {
1224 MonoMethodSignature *esig;
1225 char icall_name [256];
1226 char *name;
1227 MonoJitICallInfo *info;
1228
1229 /* Need to register the icall so it gets an icall wrapper */
1230 sprintf (icall_name, "ves_array_new_va_%d", rank);
1231
1232 mono_jit_lock ();
1233 info = mono_find_jit_icall_by_name (icall_name);
1234 if (info == NULL) {
1235 esig = mono_get_array_new_va_signature (rank);
1236 name = g_strdup (icall_name);
1237 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
1238
1239 g_hash_table_insert (jit_icall_name_hash, name, name);
1240 }
1241 mono_jit_unlock ();
1242
1243 return info;
1244 }
1245
1246 gboolean
1247 mini_class_is_system_array (MonoClass *klass)
1248 {
1249 if (klass->parent == mono_defaults.array_class)
1250 return TRUE;
1251 else
1252 return FALSE;
1253 }
1254
1255 gboolean
1256 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1257 {
1258 MonoAssembly *assembly = method->klass->image->assembly;
1259 if (method->wrapper_type != MONO_WRAPPER_NONE)
1260 return FALSE;
1261 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1262 return FALSE;
1263 if (mono_security_get_mode () != MONO_SECURITY_MODE_NONE)
1264 return FALSE;
1265 return mono_assembly_has_skip_verification (assembly);
1266 }
1267
1268 /*
1269 * mini_method_verify:
1270 *
1271 * Verify the method using the new verfier.
1272 *
1273 * Returns true if the method is invalid.
1274 */
1275 gboolean
1276 mini_method_verify (MonoCompile *cfg, MonoMethod *method)
1277 {
1278 GSList *tmp, *res;
1279 gboolean is_fulltrust;
1280 MonoLoaderError *error;
1281
1282 if (method->verification_success)
1283 return FALSE;
1284
1285 is_fulltrust = mono_verifier_is_method_full_trust (method);
1286
1287 if (!mono_verifier_is_enabled_for_method (method))
1288 return FALSE;
1289
1290 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility);
1291
1292 if ((error = mono_loader_get_last_error ())) {
1293 cfg->exception_type = error->exception_type;
1294 if (res)
1295 mono_free_verify_list (res);
1296 return TRUE;
1297 }
1298
1299 if (res) {
1300 for (tmp = res; tmp; tmp = tmp->next) {
1301 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1302 if (info->info.status == MONO_VERIFY_ERROR) {
1303 char *method_name = mono_method_full_name (method, TRUE);
1304 cfg->exception_type = info->exception_type;
1305 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1306 mono_free_verify_list (res);
1307 g_free (method_name);
1308 return TRUE;
1309 }
1310 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1311 char *method_name = mono_method_full_name (method, TRUE);
1312 cfg->exception_type = info->exception_type;
1313 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1314 mono_free_verify_list (res);
1315 g_free (method_name);
1316 return TRUE;
1317 }
1318 }
1319 mono_free_verify_list (res);
1320 }
1321 method->verification_success = 1;
1322 return FALSE;
1323 }
1324
1325 /*Returns true is something went wrong*/
1326 static gboolean
1327 mono_compile_is_broken (MonoCompile *cfg)
1328 {
1329 MonoMethod *method = cfg->method;
1330 MonoMethod *method_definition = method;
1331 gboolean dont_verify = mini_assembly_can_skip_verification (cfg->domain, method);
1332 dont_verify |= method->klass->image->assembly->corlib_internal;
1333
1334 while (method_definition->is_inflated) {
1335 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1336 method_definition = imethod->declaring;
1337 }
1338
1339 return !dont_verify && mini_method_verify (cfg, method_definition);
1340 }
1341
1342 static void
1343 create_helper_signature (void)
1344 {
1345 helper_sig_domain_get = mono_create_icall_signature ("ptr");
1346 helper_sig_class_init_trampoline = mono_create_icall_signature ("void");
1347 helper_sig_generic_class_init_trampoline = mono_create_icall_signature ("void");
1348 helper_sig_generic_class_init_trampoline_llvm = mono_create_icall_signature ("void ptr");
1349 helper_sig_rgctx_lazy_fetch_trampoline = mono_create_icall_signature ("ptr ptr");
1350 helper_sig_monitor_enter_exit_trampoline = mono_create_icall_signature ("void");
1351 helper_sig_monitor_enter_exit_trampoline_llvm = mono_create_icall_signature ("void object");
1352 }
1353
1354 static gconstpointer
1355 mono_icall_get_wrapper_full (MonoJitICallInfo* callinfo, gboolean do_compile)
1356 {
1357 char *name;
1358 MonoMethod *wrapper;
1359 gconstpointer trampoline;
1360 MonoDomain *domain = mono_get_root_domain ();
1361
1362 if (callinfo->wrapper) {
1363 return callinfo->wrapper;
1364 }
1365
1366 if (callinfo->trampoline)
1367 return callinfo->trampoline;
1368
1369 /*
1370 * We use the lock on the root domain instead of the JIT lock to protect
1371 * callinfo->trampoline, since we do a lot of stuff inside the critical section.
1372 */
1373 mono_loader_lock (); /*FIXME mono_compile_method requires the loader lock, by large.*/
1374 mono_domain_lock (domain);
1375
1376 if (callinfo->trampoline) {
1377 mono_domain_unlock (domain);
1378 mono_loader_unlock ();
1379 return callinfo->trampoline;
1380 }
1381
1382 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
1383 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
1384 g_free (name);
1385
1386 if (do_compile)
1387 trampoline = mono_compile_method (wrapper);
1388 else
1389 trampoline = mono_create_ftnptr (domain, mono_create_jit_trampoline_in_domain (domain, wrapper));
1390 mono_register_jit_icall_wrapper (callinfo, trampoline);
1391
1392 callinfo->trampoline = trampoline;
1393
1394 mono_domain_unlock (domain);
1395 mono_loader_unlock ();
1396
1397 return callinfo->trampoline;
1398 }
1399
1400 gconstpointer
1401 mono_icall_get_wrapper (MonoJitICallInfo* callinfo)
1402 {
1403 return mono_icall_get_wrapper_full (callinfo, FALSE);
1404 }
1405
1406 static void
1407 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1408 {
1409 if (!domain_jit_info (domain)->dynamic_code_hash)
1410 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1411 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1412 }
1413
1414 static MonoJitDynamicMethodInfo*
1415 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1416 {
1417 MonoJitDynamicMethodInfo *res;
1418
1419 if (domain_jit_info (domain)->dynamic_code_hash)
1420 res = g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1421 else
1422 res = NULL;
1423 return res;
1424 }
1425
1426 typedef struct {
1427 MonoClass *vtype;
1428 GList *active, *inactive;
1429 GSList *slots;
1430 } StackSlotInfo;
1431
1432 static gint
1433 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1434 {
1435 MonoMethodVar *v1 = (MonoMethodVar*)a;
1436 MonoMethodVar *v2 = (MonoMethodVar*)b;
1437
1438 if (v1 == v2)
1439 return 0;
1440 else if (v1->interval->range && v2->interval->range)
1441 return v1->interval->range->from - v2->interval->range->from;
1442 else if (v1->interval->range)
1443 return -1;
1444 else
1445 return 1;
1446 }
1447
1448 #ifndef DISABLE_JIT
1449
1450 #if 0
1451 #define LSCAN_DEBUG(a) do { a; } while (0)
1452 #else
1453 #define LSCAN_DEBUG(a)
1454 #endif
1455
1456 static gint32*
1457 mono_allocate_stack_slots_full2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1458 {
1459 int i, slot, offset, size;
1460 guint32 align;
1461 MonoMethodVar *vmv;
1462 MonoInst *inst;
1463 gint32 *offsets;
1464 GList *vars = NULL, *l, *unhandled;
1465 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1466 MonoType *t;
1467 int nvtypes;
1468 gboolean reuse_slot;
1469
1470 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1471
1472 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1473 vtype_stack_slots = NULL;
1474 nvtypes = 0;
1475
1476 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1477 for (i = 0; i < cfg->num_varinfo; ++i)
1478 offsets [i] = -1;
1479
1480 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1481 inst = cfg->varinfo [i];
1482 vmv = MONO_VARINFO (cfg, i);
1483
1484 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1485 continue;
1486
1487 vars = g_list_prepend (vars, vmv);
1488 }
1489
1490 vars = g_list_sort (g_list_copy (vars), compare_by_interval_start_pos_func);
1491
1492 /* Sanity check */
1493 /*
1494 i = 0;
1495 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1496 MonoMethodVar *current = unhandled->data;
1497
1498 if (current->interval->range) {
1499 g_assert (current->interval->range->from >= i);
1500 i = current->interval->range->from;
1501 }
1502 }
1503 */
1504
1505 offset = 0;
1506 *stack_align = 0;
1507 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1508 MonoMethodVar *current = unhandled->data;
1509
1510 vmv = current;
1511 inst = cfg->varinfo [vmv->idx];
1512
1513 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1514 * pinvoke wrappers when they call functions returning structures */
1515 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype) && inst->inst_vtype->type != MONO_TYPE_TYPEDBYREF) {
1516 size = mono_class_native_size (mono_class_from_mono_type (inst->inst_vtype), &align);
1517 }
1518 else {
1519 int ialign;
1520
1521 size = mono_type_size (inst->inst_vtype, &ialign);
1522 align = ialign;
1523
1524 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (inst->inst_vtype)))
1525 align = 16;
1526 }
1527
1528 reuse_slot = TRUE;
1529 if (cfg->disable_reuse_stack_slots)
1530 reuse_slot = FALSE;
1531
1532 t = mono_type_get_underlying_type (inst->inst_vtype);
1533 switch (t->type) {
1534 case MONO_TYPE_GENERICINST:
1535 if (!mono_type_generic_inst_is_valuetype (t)) {
1536 slot_info = &scalar_stack_slots [t->type];
1537 break;
1538 }
1539 /* Fall through */
1540 case MONO_TYPE_VALUETYPE:
1541 if (!vtype_stack_slots)
1542 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1543 for (i = 0; i < nvtypes; ++i)
1544 if (t->data.klass == vtype_stack_slots [i].vtype)
1545 break;
1546 if (i < nvtypes)
1547 slot_info = &vtype_stack_slots [i];
1548 else {
1549 g_assert (nvtypes < 256);
1550 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1551 slot_info = &vtype_stack_slots [nvtypes];
1552 nvtypes ++;
1553 }
1554 if (cfg->disable_reuse_ref_stack_slots)
1555 reuse_slot = FALSE;
1556 break;
1557
1558 case MONO_TYPE_PTR:
1559 case MONO_TYPE_I:
1560 case MONO_TYPE_U:
1561 #if SIZEOF_REGISTER == 4
1562 case MONO_TYPE_I4:
1563 #else
1564 case MONO_TYPE_I8:
1565 #endif
1566 #ifdef HAVE_SGEN_GC
1567 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1568 break;
1569 #else
1570 /* Fall through */
1571 #endif
1572
1573 case MONO_TYPE_CLASS:
1574 case MONO_TYPE_OBJECT:
1575 case MONO_TYPE_ARRAY:
1576 case MONO_TYPE_SZARRAY:
1577 case MONO_TYPE_STRING:
1578 /* Share non-float stack slots of the same size */
1579 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1580 if (cfg->disable_reuse_ref_stack_slots)
1581 reuse_slot = FALSE;
1582 break;
1583
1584 default:
1585 slot_info = &scalar_stack_slots [t->type];
1586 }
1587
1588 slot = 0xffffff;
1589 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1590 int pos;
1591 gboolean changed;
1592
1593 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1594
1595 if (!current->interval->range) {
1596 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1597 pos = ~0;
1598 else {
1599 /* Dead */
1600 inst->flags |= MONO_INST_IS_DEAD;
1601 continue;
1602 }
1603 }
1604 else
1605 pos = current->interval->range->from;
1606
1607 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1608 if (current->interval->range)
1609 LSCAN_DEBUG (mono_linterval_print (current->interval));
1610 LSCAN_DEBUG (printf ("\n"));
1611
1612 /* Check for intervals in active which expired or inactive */
1613 changed = TRUE;
1614 /* FIXME: Optimize this */
1615 while (changed) {
1616 changed = FALSE;
1617 for (l = slot_info->active; l != NULL; l = l->next) {
1618 MonoMethodVar *v = (MonoMethodVar*)l->data;
1619
1620 if (v->interval->last_range->to < pos) {
1621 slot_info->active = g_list_delete_link (slot_info->active, l);
1622 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1623 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1624 changed = TRUE;
1625 break;
1626 }
1627 else if (!mono_linterval_covers (v->interval, pos)) {
1628 slot_info->inactive = g_list_append (slot_info->inactive, v);
1629 slot_info->active = g_list_delete_link (slot_info->active, l);
1630 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1631 changed = TRUE;
1632 break;
1633 }
1634 }
1635 }
1636
1637 /* Check for intervals in inactive which expired or active */
1638 changed = TRUE;
1639 /* FIXME: Optimize this */
1640 while (changed) {
1641 changed = FALSE;
1642 for (l = slot_info->inactive; l != NULL; l = l->next) {
1643 MonoMethodVar *v = (MonoMethodVar*)l->data;
1644
1645 if (v->interval->last_range->to < pos) {
1646 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1647 // FIXME: Enabling this seems to cause impossible to debug crashes
1648 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1649 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1650 changed = TRUE;
1651 break;
1652 }
1653 else if (mono_linterval_covers (v->interval, pos)) {
1654 slot_info->active = g_list_append (slot_info->active, v);
1655 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1656 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1657 changed = TRUE;
1658 break;
1659 }
1660 }
1661 }
1662
1663 /*
1664 * This also handles the case when the variable is used in an
1665 * exception region, as liveness info is not computed there.
1666 */
1667 /*
1668 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1669 * opcodes.
1670 */
1671 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1672 if (slot_info->slots) {
1673 slot = GPOINTER_TO_INT (slot_info->slots->data);
1674
1675 slot_info->slots = slot_info->slots->next;
1676 }
1677
1678 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1679
1680 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1681 }
1682 }
1683
1684 #if 0
1685 {
1686 static int count = 0;
1687 count ++;
1688
1689 if (count == atoi (getenv ("COUNT3")))
1690 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1691 if (count > atoi (getenv ("COUNT3")))
1692 slot = 0xffffff;
1693 else {
1694 mono_print_ins (inst);
1695 }
1696 }
1697 #endif
1698
1699 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1700
1701 if (!reuse_slot)
1702 slot = 0xffffff;
1703
1704 if (slot == 0xffffff) {
1705 /*
1706 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1707 * efficient copying (and to work around the fact that OP_MEMCPY
1708 * and OP_MEMSET ignores alignment).
1709 */
1710 if (MONO_TYPE_ISSTRUCT (t)) {
1711 align = MAX (align, sizeof (gpointer));
1712 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1713 }
1714
1715 if (backward) {
1716 offset += size;
1717 offset += align - 1;
1718 offset &= ~(align - 1);
1719 slot = offset;
1720 }
1721 else {
1722 offset += align - 1;
1723 offset &= ~(align - 1);
1724 slot = offset;
1725 offset += size;
1726 }
1727
1728 if (*stack_align == 0)
1729 *stack_align = align;
1730 }
1731
1732 offsets [vmv->idx] = slot;
1733 }
1734 g_list_free (vars);
1735 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1736 if (scalar_stack_slots [i].active)
1737 g_list_free (scalar_stack_slots [i].active);
1738 }
1739 for (i = 0; i < nvtypes; ++i) {
1740 if (vtype_stack_slots [i].active)
1741 g_list_free (vtype_stack_slots [i].active);
1742 }
1743
1744 mono_jit_stats.locals_stack_size += offset;
1745
1746 *stack_size = offset;
1747 return offsets;
1748 }
1749
1750 /*
1751 * mono_allocate_stack_slots_full:
1752 *
1753 * Allocate stack slots for all non register allocated variables using a
1754 * linear scan algorithm.
1755 * Returns: an array of stack offsets.
1756 * STACK_SIZE is set to the amount of stack space needed.
1757 * STACK_ALIGN is set to the alignment needed by the locals area.
1758 */
1759 gint32*
1760 mono_allocate_stack_slots_full (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1761 {
1762 int i, slot, offset, size;
1763 guint32 align;
1764 MonoMethodVar *vmv;
1765 MonoInst *inst;
1766 gint32 *offsets;
1767 GList *vars = NULL, *l;
1768 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1769 MonoType *t;
1770 int nvtypes;
1771 gboolean reuse_slot;
1772
1773 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1774 return mono_allocate_stack_slots_full2 (cfg, backward, stack_size, stack_align);
1775
1776 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1777 vtype_stack_slots = NULL;
1778 nvtypes = 0;
1779
1780 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1781 for (i = 0; i < cfg->num_varinfo; ++i)
1782 offsets [i] = -1;
1783
1784 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1785 inst = cfg->varinfo [i];
1786 vmv = MONO_VARINFO (cfg, i);
1787
1788 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1789 continue;
1790
1791 vars = g_list_prepend (vars, vmv);
1792 }
1793
1794 vars = mono_varlist_sort (cfg, vars, 0);
1795 offset = 0;
1796 *stack_align = sizeof (gpointer);
1797 for (l = vars; l; l = l->next) {
1798 vmv = l->data;
1799 inst = cfg->varinfo [vmv->idx];
1800
1801 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1802 * pinvoke wrappers when they call functions returning structures */
1803 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype) && inst->inst_vtype->type != MONO_TYPE_TYPEDBYREF) {
1804 size = mono_class_native_size (mono_class_from_mono_type (inst->inst_vtype), &align);
1805 } else {
1806 int ialign;
1807
1808 size = mono_type_size (inst->inst_vtype, &ialign);
1809 align = ialign;
1810
1811 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (inst->inst_vtype)))
1812 align = 16;
1813 }
1814
1815 reuse_slot = TRUE;
1816 if (cfg->disable_reuse_stack_slots)
1817 reuse_slot = FALSE;
1818
1819 t = mono_type_get_underlying_type (inst->inst_vtype);
1820 if (t->byref) {
1821 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1822 } else {
1823 switch (t->type) {
1824 case MONO_TYPE_GENERICINST:
1825 if (!mono_type_generic_inst_is_valuetype (t)) {
1826 slot_info = &scalar_stack_slots [t->type];
1827 break;
1828 }
1829 /* Fall through */
1830 case MONO_TYPE_VALUETYPE:
1831 if (!vtype_stack_slots)
1832 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1833 for (i = 0; i < nvtypes; ++i)
1834 if (t->data.klass == vtype_stack_slots [i].vtype)
1835 break;
1836 if (i < nvtypes)
1837 slot_info = &vtype_stack_slots [i];
1838 else {
1839 g_assert (nvtypes < 256);
1840 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1841 slot_info = &vtype_stack_slots [nvtypes];
1842 nvtypes ++;
1843 }
1844 if (cfg->disable_reuse_ref_stack_slots)
1845 reuse_slot = FALSE;
1846 break;
1847
1848 case MONO_TYPE_PTR:
1849 case MONO_TYPE_I:
1850 case MONO_TYPE_U:
1851 #if SIZEOF_REGISTER == 4
1852 case MONO_TYPE_I4:
1853 #else
1854 case MONO_TYPE_I8:
1855 #endif
1856 #ifdef HAVE_SGEN_GC
1857 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1858 break;
1859 #else
1860 /* Fall through */
1861 #endif
1862
1863 case MONO_TYPE_CLASS:
1864 case MONO_TYPE_OBJECT:
1865 case MONO_TYPE_ARRAY:
1866 case MONO_TYPE_SZARRAY:
1867 case MONO_TYPE_STRING:
1868 /* Share non-float stack slots of the same size */
1869 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1870 if (cfg->disable_reuse_ref_stack_slots)
1871 reuse_slot = FALSE;
1872 break;
1873
1874 default:
1875 slot_info = &scalar_stack_slots [t->type];
1876 }
1877 }
1878
1879 slot = 0xffffff;
1880 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1881 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1882
1883 /* expire old intervals in active */
1884 while (slot_info->active) {
1885 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1886
1887 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1888 break;
1889
1890 //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);
1891
1892 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1893 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1894 }
1895
1896 /*
1897 * This also handles the case when the variable is used in an
1898 * exception region, as liveness info is not computed there.
1899 */
1900 /*
1901 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1902 * opcodes.
1903 */
1904 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1905 if (slot_info->slots) {
1906 slot = GPOINTER_TO_INT (slot_info->slots->data);
1907
1908 slot_info->slots = slot_info->slots->next;
1909 }
1910
1911 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1912 }
1913 }
1914
1915 {
1916 static int count = 0;
1917 count ++;
1918
1919 /*
1920 if (count == atoi (getenv ("COUNT")))
1921 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1922 if (count > atoi (getenv ("COUNT")))
1923 slot = 0xffffff;
1924 else {
1925 mono_print_ins (inst);
1926 }
1927 */
1928 }
1929
1930 if (!reuse_slot)
1931 slot = 0xffffff;
1932
1933 if (slot == 0xffffff) {
1934 /*
1935 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1936 * efficient copying (and to work around the fact that OP_MEMCPY
1937 * and OP_MEMSET ignores alignment).
1938 */
1939 if (MONO_TYPE_ISSTRUCT (t)) {
1940 align = MAX (align, sizeof (gpointer));
1941 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1942 /*
1943 * Align the size too so the code generated for passing vtypes in
1944 * registers doesn't overwrite random locals.
1945 */
1946 size = (size + (align - 1)) & ~(align -1);
1947 }
1948
1949 if (backward) {
1950 offset += size;
1951 offset += align - 1;
1952 offset &= ~(align - 1);
1953 slot = offset;
1954 }
1955 else {
1956 offset += align - 1;
1957 offset &= ~(align - 1);
1958 slot = offset;
1959 offset += size;
1960 }
1961
1962 *stack_align = MAX (*stack_align, align);
1963 }
1964
1965 offsets [vmv->idx] = slot;
1966 }
1967 g_list_free (vars);
1968 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1969 if (scalar_stack_slots [i].active)
1970 g_list_free (scalar_stack_slots [i].active);
1971 }
1972 for (i = 0; i < nvtypes; ++i) {
1973 if (vtype_stack_slots [i].active)
1974 g_list_free (vtype_stack_slots [i].active);
1975 }
1976
1977 mono_jit_stats.locals_stack_size += offset;
1978
1979 *stack_size = offset;
1980 return offsets;
1981 }
1982
1983 #else
1984
1985 gint32*
1986 mono_allocate_stack_slots_full (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1987 {
1988 g_assert_not_reached ();
1989 return NULL;
1990 }
1991
1992 #endif /* DISABLE_JIT */
1993
1994 gint32*
1995 mono_allocate_stack_slots (MonoCompile *m, guint32 *stack_size, guint32 *stack_align)
1996 {
1997 return mono_allocate_stack_slots_full (m, TRUE, stack_size, stack_align);
1998 }
1999
2000 #define EMUL_HIT_SHIFT 3
2001 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
2002 /* small hit bitmap cache */
2003 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
2004 static short emul_opcode_num = 0;
2005 static short emul_opcode_alloced = 0;
2006 static short *emul_opcode_opcodes = NULL;
2007 static MonoJitICallInfo **emul_opcode_map = NULL;
2008
2009 MonoJitICallInfo *
2010 mono_find_jit_opcode_emulation (int opcode)
2011 {
2012 g_assert (opcode >= 0 && opcode <= OP_LAST);
2013 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
2014 int i;
2015 for (i = 0; i < emul_opcode_num; ++i) {
2016 if (emul_opcode_opcodes [i] == opcode)
2017 return emul_opcode_map [i];
2018 }
2019 }
2020 return NULL;
2021 }
2022
2023 void
2024 mono_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, gboolean no_throw)
2025 {
2026 MonoJitICallInfo *info;
2027 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
2028
2029 g_assert (!sig->hasthis);
2030 g_assert (sig->param_count < 3);
2031
2032 info = mono_register_jit_icall (func, name, sig, no_throw);
2033
2034 if (emul_opcode_num >= emul_opcode_alloced) {
2035 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
2036 emul_opcode_alloced += incr;
2037 emul_opcode_map = g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
2038 emul_opcode_opcodes = g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
2039 }
2040 emul_opcode_map [emul_opcode_num] = info;
2041 emul_opcode_opcodes [emul_opcode_num] = opcode;
2042 emul_opcode_num++;
2043 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
2044 }
2045
2046 static void
2047 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
2048 {
2049 MonoMethodSignature *sig;
2050
2051 if (sigstr)
2052 sig = mono_create_icall_signature (sigstr);
2053 else
2054 sig = NULL;
2055
2056 mono_register_jit_icall (func, name, sig, save);
2057 }
2058
2059 static void
2060 print_dfn (MonoCompile *cfg) {
2061 int i, j;
2062 char *code;
2063 MonoBasicBlock *bb;
2064 MonoInst *c;
2065
2066 g_print ("IR code for method %s\n", mono_method_full_name (cfg->method, TRUE));
2067
2068 for (i = 0; i < cfg->num_bblocks; ++i) {
2069 bb = cfg->bblocks [i];
2070 /*if (bb->cil_code) {
2071 char* code1, *code2;
2072 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
2073 if (bb->last_ins->cil_code)
2074 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
2075 else
2076 code2 = g_strdup ("");
2077
2078 code1 [strlen (code1) - 1] = 0;
2079 code = g_strdup_printf ("%s -> %s", code1, code2);
2080 g_free (code1);
2081 g_free (code2);
2082 } else*/
2083 code = g_strdup ("\n");
2084 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
2085 MONO_BB_FOR_EACH_INS (bb, c) {
2086 mono_print_ins_index (-1, c);
2087 }
2088
2089 g_print ("\tprev:");
2090 for (j = 0; j < bb->in_count; ++j) {
2091 g_print (" BB%d", bb->in_bb [j]->block_num);
2092 }
2093 g_print ("\t\tsucc:");
2094 for (j = 0; j < bb->out_count; ++j) {
2095 g_print (" BB%d", bb->out_bb [j]->block_num);
2096 }
2097 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
2098
2099 if (bb->idom)
2100 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
2101
2102 if (bb->dominators)
2103 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
2104 if (bb->dfrontier)
2105 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
2106 g_free (code);
2107 }
2108
2109 g_print ("\n");
2110 }
2111
2112 void
2113 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
2114 {
2115 MONO_ADD_INS (bb, inst);
2116 }
2117
2118 void
2119 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
2120 {
2121 if (ins == NULL) {
2122 ins = bb->code;
2123 bb->code = ins_to_insert;
2124
2125 /* Link with next */
2126 ins_to_insert->next = ins;
2127 if (ins)
2128 ins->prev = ins_to_insert;
2129
2130 if (bb->last_ins == NULL)
2131 bb->last_ins = ins_to_insert;
2132 } else {
2133 /* Link with next */
2134 ins_to_insert->next = ins->next;
2135 if (ins->next)
2136 ins->next->prev = ins_to_insert;
2137
2138 /* Link with previous */
2139 ins->next = ins_to_insert;
2140 ins_to_insert->prev = ins;
2141
2142 if (bb->last_ins == ins)
2143 bb->last_ins = ins_to_insert;
2144 }
2145 }
2146
2147 void
2148 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
2149 {
2150 if (ins == NULL) {
2151 ins = bb->code;
2152 bb->code = ins_to_insert;
2153 ins_to_insert->next = ins;
2154 if (bb->last_ins == NULL)
2155 bb->last_ins = ins_to_insert;
2156 } else {
2157 /* Link with previous */
2158 if (ins->prev)
2159 ins->prev->next = ins_to_insert;
2160 ins_to_insert->prev = ins->prev;
2161
2162 /* Link with next */
2163 ins->prev = ins_to_insert;
2164 ins_to_insert->next = ins;
2165
2166 if (bb->code == ins)
2167 bb->code = ins_to_insert;
2168 }
2169 }
2170
2171 /*
2172 * mono_verify_bblock:
2173 *
2174 * Verify that the next and prev pointers are consistent inside the instructions in BB.
2175 */
2176 void
2177 mono_verify_bblock (MonoBasicBlock *bb)
2178 {
2179 MonoInst *ins, *prev;
2180
2181 prev = NULL;
2182 for (ins = bb->code; ins; ins = ins->next) {
2183 g_assert (ins->prev == prev);
2184 prev = ins;
2185 }
2186 if (bb->last_ins)
2187 g_assert (!bb->last_ins->next);
2188 }
2189
2190 /*
2191 * mono_verify_cfg:
2192 *
2193 * Perform consistency checks on the JIT data structures and the IR
2194 */
2195 void
2196 mono_verify_cfg (MonoCompile *cfg)
2197 {
2198 MonoBasicBlock *bb;
2199
2200 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2201 mono_verify_bblock (bb);
2202 }
2203
2204 void
2205 mono_destroy_compile (MonoCompile *cfg)
2206 {
2207 GSList *l;
2208
2209 if (cfg->header)
2210 mono_metadata_free_mh (cfg->header);
2211 //mono_mempool_stats (cfg->mempool);
2212 mono_free_loop_info (cfg);
2213 if (cfg->rs)
2214 mono_regstate_free (cfg->rs);
2215 if (cfg->spvars)
2216 g_hash_table_destroy (cfg->spvars);
2217 if (cfg->exvars)
2218 g_hash_table_destroy (cfg->exvars);
2219 for (l = cfg->headers_to_free; l; l = l->next)
2220 mono_metadata_free_mh (l->data);
2221 g_list_free (cfg->ldstr_list);
2222 g_hash_table_destroy (cfg->token_info_hash);
2223 if (cfg->abs_patches)
2224 g_hash_table_destroy (cfg->abs_patches);
2225 mono_mempool_destroy (cfg->mempool);
2226
2227 g_free (cfg->varinfo);
2228 g_free (cfg->vars);
2229 g_free (cfg->exception_message);
2230 g_free (cfg);
2231 }
2232
2233 #ifdef HAVE_KW_THREAD
2234 static __thread gpointer mono_lmf_addr MONO_TLS_FAST;
2235 #ifdef MONO_ARCH_ENABLE_MONO_LMF_VAR
2236 /*
2237 * When this is defined, the current lmf is stored in this tls variable instead of in
2238 * jit_tls->lmf.
2239 */
2240 static __thread gpointer mono_lmf MONO_TLS_FAST;
2241 #endif
2242 #endif
2243
2244 guint32
2245 mono_get_jit_tls_key (void)
2246 {
2247 return mono_jit_tls_id;
2248 }
2249
2250 gint32
2251 mono_get_jit_tls_offset (void)
2252 {
2253 #ifdef HAVE_KW_THREAD
2254 int offset;
2255 MONO_THREAD_VAR_OFFSET (mono_jit_tls, offset);
2256 return offset;
2257 #else
2258 return -1;
2259 #endif
2260 }
2261
2262 gint32
2263 mono_get_lmf_tls_offset (void)
2264 {
2265 #if defined(HAVE_KW_THREAD) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2266 int offset;
2267 MONO_THREAD_VAR_OFFSET(mono_lmf,offset);
2268 return offset;
2269 #else
2270 return -1;
2271 #endif
2272 }
2273
2274 gint32
2275 mono_get_lmf_addr_tls_offset (void)
2276 {
2277 int offset;
2278 MONO_THREAD_VAR_OFFSET(mono_lmf_addr,offset);
2279 return offset;
2280 }
2281
2282 MonoLMF *
2283 mono_get_lmf (void)
2284 {
2285 #if defined(HAVE_KW_THREAD) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2286 return mono_lmf;
2287 #else
2288 MonoJitTlsData *jit_tls;
2289
2290 if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
2291 return jit_tls->lmf;
2292
2293 g_assert_not_reached ();
2294 return NULL;
2295 #endif
2296 }
2297
2298 MonoLMF **
2299 mono_get_lmf_addr (void)
2300 {
2301 #ifdef HAVE_KW_THREAD
2302 return mono_lmf_addr;
2303 #else
2304 MonoJitTlsData *jit_tls;
2305
2306 if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
2307 return &jit_tls->lmf;
2308
2309 /*
2310 * When resolving the call to mono_jit_thread_attach full-aot will look
2311 * in the plt, which causes a call into the generic trampoline, which in turn
2312 * tries to resolve the lmf_addr creating a cyclic dependency. We cannot
2313 * call mono_jit_thread_attach from the native-to-managed wrapper, without
2314 * mono_get_lmf_addr, and mono_get_lmf_addr requires the thread to be attached.
2315 */
2316
2317 mono_jit_thread_attach (NULL);
2318
2319 if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
2320 return &jit_tls->lmf;
2321
2322 g_assert_not_reached ();
2323 return NULL;
2324 #endif
2325 }
2326
2327 void
2328 mono_set_lmf (MonoLMF *lmf)
2329 {
2330 #if defined(HAVE_KW_THREAD) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2331 mono_lmf = lmf;
2332 #endif
2333
2334 (*mono_get_lmf_addr ()) = lmf;
2335 }
2336
2337 /* Called by native->managed wrappers */
2338 void
2339 mono_jit_thread_attach (MonoDomain *domain)
2340 {
2341 if (!domain)
2342 /*
2343 * Happens when called from AOTed code which is only used in the root
2344 * domain.
2345 */
2346 domain = mono_get_root_domain ();
2347
2348 #ifdef HAVE_KW_THREAD
2349 if (!mono_lmf_addr) {
2350 mono_thread_attach (domain);
2351 }
2352 #else
2353 if (!TlsGetValue (mono_jit_tls_id))
2354 mono_thread_attach (domain);
2355 #endif
2356 if (mono_domain_get () != domain)
2357 mono_domain_set (domain, TRUE);
2358 }
2359
2360 /**
2361 * mono_thread_abort:
2362 * @obj: exception object
2363 *
2364 * abort the thread, print exception information and stack trace
2365 */
2366 static void
2367 mono_thread_abort (MonoObject *obj)
2368 {
2369 /* MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id); */
2370
2371 /* handle_remove should be eventually called for this thread, too
2372 g_free (jit_tls);*/
2373
2374 if ((mono_runtime_unhandled_exception_policy_get () == MONO_UNHANDLED_POLICY_LEGACY) ||
2375 (obj->vtable->klass == mono_defaults.threadabortexception_class)) {
2376 mono_thread_exit ();
2377 } else {
2378 exit (mono_environment_exitcode_get ());
2379 }
2380 }
2381
2382 static void*
2383 setup_jit_tls_data (gpointer stack_start, gpointer abort_func)
2384 {
2385 MonoJitTlsData *jit_tls;
2386 MonoLMF *lmf;
2387
2388 jit_tls = TlsGetValue (mono_jit_tls_id);
2389 if (jit_tls)
2390 return jit_tls;
2391
2392 jit_tls = g_new0 (MonoJitTlsData, 1);
2393
2394 TlsSetValue (mono_jit_tls_id, jit_tls);
2395
2396 #ifdef HAVE_KW_THREAD
2397 mono_jit_tls = jit_tls;
2398 #endif
2399
2400 jit_tls->abort_func = abort_func;
2401 jit_tls->end_of_stack = stack_start;
2402
2403 lmf = g_new0 (MonoLMF, 1);
2404 #ifdef MONO_ARCH_INIT_TOP_LMF_ENTRY
2405 MONO_ARCH_INIT_TOP_LMF_ENTRY (lmf);
2406 #else
2407 lmf->ebp = -1;
2408 #endif
2409
2410 jit_tls->first_lmf = lmf;
2411
2412 #if defined(HAVE_KW_THREAD) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2413 /* jit_tls->lmf is unused */
2414 mono_lmf = lmf;
2415 mono_lmf_addr = &mono_lmf;
2416 #else
2417 #if defined(HAVE_KW_THREAD)
2418 mono_lmf_addr = &jit_tls->lmf;
2419 #endif
2420
2421 jit_tls->lmf = lmf;
2422 #endif
2423
2424 mono_arch_setup_jit_tls_data (jit_tls);
2425 mono_setup_altstack (jit_tls);
2426
2427 return jit_tls;
2428 }
2429
2430 static void
2431 mono_thread_start_cb (intptr_t tid, gpointer stack_start, gpointer func)
2432 {
2433 MonoInternalThread *thread;
2434 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort);
2435 thread = mono_thread_internal_current ();
2436 mono_debugger_thread_created (tid, thread->root_domain_thread, jit_tls, func);
2437 if (thread)
2438 thread->jit_data = jit_tls;
2439 }
2440
2441 void (*mono_thread_attach_aborted_cb ) (MonoObject *obj) = NULL;
2442
2443 static void
2444 mono_thread_abort_dummy (MonoObject *obj)
2445 {
2446 if (mono_thread_attach_aborted_cb)
2447 mono_thread_attach_aborted_cb (obj);
2448 else
2449 mono_thread_abort (obj);
2450 }
2451
2452 static void
2453 mono_thread_attach_cb (intptr_t tid, gpointer stack_start)
2454 {
2455 MonoInternalThread *thread;
2456 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort_dummy);
2457 thread = mono_thread_internal_current ();
2458 mono_debugger_thread_created (tid, thread->root_domain_thread, (MonoJitTlsData *) jit_tls, NULL);
2459 if (thread)
2460 thread->jit_data = jit_tls;
2461 if (mono_profiler_get_events () & MONO_PROFILE_STATISTICAL)
2462 mono_runtime_setup_stat_profiler ();
2463 }
2464
2465 static void
2466 mini_thread_cleanup (MonoThread *thread)
2467 {
2468 MonoInternalThread *internal = thread->internal_thread;
2469 MonoJitTlsData *jit_tls = internal->jit_data;
2470
2471 if (jit_tls) {
2472 mono_debugger_thread_cleanup (jit_tls);
2473 mono_arch_free_jit_tls_data (jit_tls);
2474
2475 mono_free_altstack (jit_tls);
2476 g_free (jit_tls->first_lmf);
2477 g_free (jit_tls);
2478 internal->jit_data = NULL;
2479
2480 /* We can't clean up tls information if we are on another thread, it will clean up the wrong stuff
2481 * It would be nice to issue a warning when this happens outside of the shutdown sequence. but it's
2482 * not a trivial thing.
2483 *
2484 * The current offender is mono_thread_manage which cleanup threads from the outside.
2485 */
2486 if (internal == mono_thread_internal_current ()) {
2487 TlsSetValue (mono_jit_tls_id, NULL);
2488
2489 #ifdef HAVE_KW_THREAD
2490 mono_jit_tls = NULL;
2491 mono_lmf_addr = NULL;
2492 #if defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2493 mono_lmf = NULL;
2494 #endif
2495 #endif
2496 }
2497 }
2498 }
2499
2500 static MonoInst*
2501 mono_create_tls_get (MonoCompile *cfg, int offset)
2502 {
2503 #ifdef MONO_ARCH_HAVE_TLS_GET
2504 if (MONO_ARCH_HAVE_TLS_GET) {
2505 MonoInst* ins;
2506
2507 if (offset == -1)
2508 return NULL;
2509
2510 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
2511 ins->dreg = mono_alloc_preg (cfg);
2512 ins->inst_offset = offset;
2513 return ins;
2514 }
2515 #endif
2516 return NULL;
2517 }
2518
2519 MonoInst*
2520 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
2521 {
2522 return mono_create_tls_get (cfg, mono_get_jit_tls_offset ());
2523 }
2524
2525 MonoInst*
2526 mono_get_domain_intrinsic (MonoCompile* cfg)
2527 {
2528 return mono_create_tls_get (cfg, mono_domain_get_tls_offset ());
2529 }
2530
2531 MonoInst*
2532 mono_get_thread_intrinsic (MonoCompile* cfg)
2533 {
2534 return mono_create_tls_get (cfg, mono_thread_get_tls_offset ());
2535 }
2536
2537 void
2538 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2539 {
2540 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
2541
2542 ji->ip.i = ip;
2543 ji->type = type;
2544 ji->data.target = target;
2545 ji->next = cfg->patch_info;
2546
2547 cfg->patch_info = ji;
2548 }
2549
2550 MonoJumpInfo *
2551 mono_patch_info_list_prepend (MonoJumpInfo *list, int ip, MonoJumpInfoType type, gconstpointer target)
2552 {
2553 MonoJumpInfo *ji = g_new0 (MonoJumpInfo, 1);
2554
2555 ji->ip.i = ip;
2556 ji->type = type;
2557 ji->data.target = target;
2558 ji->next = list;
2559
2560 return ji;
2561 }
2562
2563 void
2564 mono_remove_patch_info (MonoCompile *cfg, int ip)
2565 {
2566 MonoJumpInfo **ji = &cfg->patch_info;
2567
2568 while (*ji) {
2569 if ((*ji)->ip.i == ip)
2570 *ji = (*ji)->next;
2571 else
2572 ji = &((*ji)->next);
2573 }
2574 }
2575
2576 /**
2577 * mono_patch_info_dup_mp:
2578 *
2579 * Make a copy of PATCH_INFO, allocating memory from the mempool MP.
2580 */
2581 MonoJumpInfo*
2582 mono_patch_info_dup_mp (MonoMemPool *mp, MonoJumpInfo *patch_info)
2583 {
2584 MonoJumpInfo *res = mono_mempool_alloc (mp, sizeof (MonoJumpInfo));
2585 memcpy (res, patch_info, sizeof (MonoJumpInfo));
2586
2587 switch (patch_info->type) {
2588 case MONO_PATCH_INFO_RVA:
2589 case MONO_PATCH_INFO_LDSTR:
2590 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2591 case MONO_PATCH_INFO_LDTOKEN:
2592 case MONO_PATCH_INFO_DECLSEC:
2593 res->data.token = mono_mempool_alloc (mp, sizeof (MonoJumpInfoToken));
2594 memcpy (res->data.token, patch_info->data.token, sizeof (MonoJumpInfoToken));
2595 break;
2596 case MONO_PATCH_INFO_SWITCH:
2597 res->data.table = mono_mempool_alloc (mp, sizeof (MonoJumpInfoBBTable));
2598 memcpy (res->data.table, patch_info->data.table, sizeof (MonoJumpInfoBBTable));
2599 res->data.table->table = mono_mempool_alloc (mp, sizeof (MonoBasicBlock*) * patch_info->data.table->table_size);
2600 memcpy (res->data.table->table, patch_info->data.table->table, sizeof (MonoBasicBlock*) * patch_info->data.table->table_size);
2601 break;
2602 case MONO_PATCH_INFO_RGCTX_FETCH:
2603 res->data.rgctx_entry = mono_mempool_alloc (mp, sizeof (MonoJumpInfoRgctxEntry));
2604 memcpy (res->data.rgctx_entry, patch_info->data.rgctx_entry, sizeof (MonoJumpInfoRgctxEntry));
2605 res->data.rgctx_entry->data = mono_patch_info_dup_mp (mp, res->data.rgctx_entry->data);
2606 break;
2607 default:
2608 break;
2609 }
2610
2611 return res;
2612 }
2613
2614 guint
2615 mono_patch_info_hash (gconstpointer data)
2616 {
2617 const MonoJumpInfo *ji = (MonoJumpInfo*)data;
2618
2619 switch (ji->type) {
2620 case MONO_PATCH_INFO_RVA:
2621 case MONO_PATCH_INFO_LDSTR:
2622 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2623 case MONO_PATCH_INFO_LDTOKEN:
2624 case MONO_PATCH_INFO_DECLSEC:
2625 return (ji->type << 8) | ji->data.token->token;
2626 case MONO_PATCH_INFO_INTERNAL_METHOD:
2627 return (ji->type << 8) | g_str_hash (ji->data.name);
2628 case MONO_PATCH_INFO_VTABLE:
2629 case MONO_PATCH_INFO_CLASS:
2630 case MONO_PATCH_INFO_IID:
2631 case MONO_PATCH_INFO_ADJUSTED_IID:
2632 case MONO_PATCH_INFO_CLASS_INIT:
2633 case MONO_PATCH_INFO_METHODCONST:
2634 case MONO_PATCH_INFO_METHOD:
2635 case MONO_PATCH_INFO_METHOD_JUMP:
2636 case MONO_PATCH_INFO_IMAGE:
2637 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
2638 case MONO_PATCH_INFO_FIELD:
2639 case MONO_PATCH_INFO_SFLDA:
2640 case MONO_PATCH_INFO_SEQ_POINT_INFO:
2641 return (ji->type << 8) | (gssize)ji->data.target;
2642 default:
2643 return (ji->type << 8);
2644 }
2645 }
2646
2647 /*
2648 * mono_patch_info_equal:
2649 *
2650 * This might fail to recognize equivalent patches, i.e. floats, so its only
2651 * usable in those cases where this is not a problem, i.e. sharing GOT slots
2652 * in AOT.
2653 */
2654 gint
2655 mono_patch_info_equal (gconstpointer ka, gconstpointer kb)
2656 {
2657 const MonoJumpInfo *ji1 = (MonoJumpInfo*)ka;
2658 const MonoJumpInfo *ji2 = (MonoJumpInfo*)kb;
2659
2660 if (ji1->type != ji2->type)
2661 return 0;
2662
2663 switch (ji1->type) {
2664 case MONO_PATCH_INFO_RVA:
2665 case MONO_PATCH_INFO_LDSTR:
2666 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2667 case MONO_PATCH_INFO_LDTOKEN:
2668 case MONO_PATCH_INFO_DECLSEC:
2669 if ((ji1->data.token->image != ji2->data.token->image) ||
2670 (ji1->data.token->token != ji2->data.token->token) ||
2671 (ji1->data.token->has_context != ji2->data.token->has_context) ||
2672 (ji1->data.token->context.class_inst != ji2->data.token->context.class_inst) ||
2673 (ji1->data.token->context.method_inst != ji2->data.token->context.method_inst))
2674 return 0;
2675 break;
2676 case MONO_PATCH_INFO_INTERNAL_METHOD:
2677 return g_str_equal (ji1->data.name, ji2->data.name);
2678
2679 case MONO_PATCH_INFO_RGCTX_FETCH: {
2680 MonoJumpInfoRgctxEntry *e1 = ji1->data.rgctx_entry;
2681 MonoJumpInfoRgctxEntry *e2 = ji2->data.rgctx_entry;
2682
2683 return e1->method == e2->method && e1->in_mrgctx == e2->in_mrgctx && e1->info_type == e2->info_type && mono_patch_info_equal (e1->data, e2->data);
2684 }
2685 default:
2686 if (ji1->data.target != ji2->data.target)
2687 return 0;
2688 break;
2689 }
2690
2691 return 1;
2692 }
2693
2694 gpointer
2695 mono_resolve_patch_target (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *patch_info, gboolean run_cctors)
2696 {
2697 unsigned char *ip = patch_info->ip.i + code;
2698 gconstpointer target = NULL;
2699
2700 switch (patch_info->type) {
2701 case MONO_PATCH_INFO_BB:
2702 /*
2703 * FIXME: This could be hit for methods without a prolog. Should use -1
2704 * but too much code depends on a 0 initial value.
2705 */
2706 //g_assert (patch_info->data.bb->native_offset);
2707 target = patch_info->data.bb->native_offset + code;
2708 break;
2709 case MONO_PATCH_INFO_ABS:
2710 target = patch_info->data.target;
2711 break;
2712 case MONO_PATCH_INFO_LABEL:
2713 target = patch_info->data.inst->inst_c0 + code;
2714 break;
2715 case MONO_PATCH_INFO_IP:
2716 target = ip;
2717 break;
2718 case MONO_PATCH_INFO_METHOD_REL:
2719 target = code + patch_info->data.offset;
2720 break;
2721 case MONO_PATCH_INFO_INTERNAL_METHOD: {
2722 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
2723 if (!mi) {
2724 g_warning ("unknown MONO_PATCH_INFO_INTERNAL_METHOD %s", patch_info->data.name);
2725 g_assert_not_reached ();
2726 }
2727 target = mono_icall_get_wrapper (mi);
2728 break;
2729 }
2730 case MONO_PATCH_INFO_METHOD_JUMP:
2731 target = mono_create_jump_trampoline (domain, patch_info->data.method, FALSE);
2732 break;
2733 case MONO_PATCH_INFO_METHOD:
2734 if (patch_info->data.method == method) {
2735 target = code;
2736 } else {
2737 /* get the trampoline to the method from the domain */
2738 target = mono_create_jit_trampoline (patch_info->data.method);
2739 }
2740 break;
2741 case MONO_PATCH_INFO_SWITCH: {
2742 gpointer *jump_table;
2743 int i;
2744
2745 if (method && method->dynamic) {
2746 jump_table = mono_code_manager_reserve (mono_dynamic_code_hash_lookup (domain, method)->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2747 } else {
2748 if (mono_aot_only) {
2749 jump_table = mono_domain_alloc (domain, sizeof (gpointer) * patch_info->data.table->table_size);
2750 } else {
2751 jump_table = mono_domain_code_reserve (domain, sizeof (gpointer) * patch_info->data.table->table_size);
2752 }
2753 }
2754
2755 for (i = 0; i < patch_info->data.table->table_size; i++)
2756 jump_table [i] = code + GPOINTER_TO_INT (patch_info->data.table->table [i]);
2757 target = jump_table;
2758 break;
2759 }
2760 case MONO_PATCH_INFO_METHODCONST:
2761 case MONO_PATCH_INFO_CLASS:
2762 case MONO_PATCH_INFO_IMAGE:
2763 case MONO_PATCH_INFO_FIELD:
2764 target = patch_info->data.target;
2765 break;
2766 case MONO_PATCH_INFO_IID:
2767 mono_class_init (patch_info->data.klass);
2768 target = GINT_TO_POINTER ((int)patch_info->data.klass->interface_id);
2769 break;
2770 case MONO_PATCH_INFO_ADJUSTED_IID:
2771 mono_class_init (patch_info->data.klass);
2772 target = GINT_TO_POINTER ((int)(-((patch_info->data.klass->interface_id + 1) * SIZEOF_VOID_P)));
2773 break;
2774 case MONO_PATCH_INFO_VTABLE:
2775 target = mono_class_vtable (domain, patch_info->data.klass);
2776 g_assert (target);
2777 break;
2778 case MONO_PATCH_INFO_CLASS_INIT: {
2779 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.klass);
2780
2781 g_assert (vtable);
2782 target = mono_create_class_init_trampoline (vtable);
2783 break;
2784 }
2785 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
2786 target = mono_create_delegate_trampoline (patch_info->data.klass);
2787 break;
2788 case MONO_PATCH_INFO_SFLDA: {
2789 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.field->parent);
2790
2791 if (mono_class_field_is_special_static (patch_info->data.field)) {
2792 gpointer addr = NULL;
2793
2794 mono_domain_lock (domain);
2795 if (domain->special_static_fields)
2796 addr = g_hash_table_lookup (domain->special_static_fields, patch_info->data.field);
2797 mono_domain_unlock (domain);
2798 g_assert (addr);
2799 return addr;
2800 }
2801
2802 g_assert (vtable);
2803 if (!vtable->initialized && !(vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) && (method && mono_class_needs_cctor_run (vtable->klass, method)))
2804 /* Done by the generated code */
2805 ;
2806 else {
2807 if (run_cctors)
2808 mono_runtime_class_init (vtable);
2809 }
2810 target = (char*)vtable->data + patch_info->data.field->offset;
2811 break;
2812 }
2813 case MONO_PATCH_INFO_RVA: {
2814 guint32 field_index = mono_metadata_token_index (patch_info->data.token->token);
2815 guint32 rva;
2816
2817 mono_metadata_field_info (patch_info->data.token->image, field_index - 1, NULL, &rva, NULL);
2818 target = mono_image_rva_map (patch_info->data.token->image, rva);
2819 break;
2820 }
2821 case MONO_PATCH_INFO_R4:
2822 case MONO_PATCH_INFO_R8:
2823 target = patch_info->data.target;
2824 break;
2825 case MONO_PATCH_INFO_EXC_NAME:
2826 target = patch_info->data.name;
2827 break;
2828 case MONO_PATCH_INFO_LDSTR:
2829 target =
2830 mono_ldstr (domain, patch_info->data.token->image,
2831 mono_metadata_token_index (patch_info->data.token->token));
2832 break;
2833 case MONO_PATCH_INFO_TYPE_FROM_HANDLE: {
2834 gpointer handle;
2835 MonoClass *handle_class;
2836
2837 handle = mono_ldtoken (patch_info->data.token->image,
2838 patch_info->data.token->token, &handle_class, patch_info->data.token->has_context ? &patch_info->data.token->context : NULL);
2839 mono_class_init (handle_class);
2840 mono_class_init (mono_class_from_mono_type (handle));
2841
2842 target =
2843 mono_type_get_object (domain, handle);
2844 break;
2845 }
2846 case MONO_PATCH_INFO_LDTOKEN: {
2847 gpointer handle;
2848 MonoClass *handle_class;
2849
2850 handle = mono_ldtoken (patch_info->data.token->image,
2851 patch_info->data.token->token, &handle_class, NULL);
2852 mono_class_init (handle_class);
2853
2854 target = handle;
2855 break;
2856 }
2857 case MONO_PATCH_INFO_DECLSEC:
2858 target = (mono_metadata_blob_heap (patch_info->data.token->image, patch_info->data.token->token) + 2);
2859 break;
2860 case MONO_PATCH_INFO_ICALL_ADDR:
2861 /* run_cctors == 0 -> AOT */
2862 if (patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
2863 if (run_cctors) {
2864 target = mono_lookup_pinvoke_call (patch_info->data.method, NULL, NULL);
2865 if (!target)
2866 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));
2867 } else {
2868 target = NULL;
2869 }
2870 } else {
2871 target = mono_lookup_internal_call (patch_info->data.method);
2872
2873 if (!target && run_cctors)
2874 g_error ("Unregistered icall '%s'\n", mono_method_full_name (patch_info->data.method, TRUE));
2875 }
2876 break;
2877 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
2878 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
2879 if (!mi) {
2880 g_warning ("unknown MONO_PATCH_INFO_JIT_ICALL_ADDR %s", patch_info->data.name);
2881 g_assert_not_reached ();
2882 }
2883 target = mi->func;
2884 break;
2885 }
2886 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
2887 target = mono_thread_interruption_request_flag ();
2888 break;
2889 case MONO_PATCH_INFO_METHOD_RGCTX: {
2890 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.method->klass);
2891 g_assert (vtable);
2892
2893 target = mono_method_lookup_rgctx (vtable, mini_method_get_context (patch_info->data.method)->method_inst);
2894 break;
2895 }
2896 case MONO_PATCH_INFO_BB_OVF:
2897 case MONO_PATCH_INFO_EXC_OVF:
2898 case MONO_PATCH_INFO_GOT_OFFSET:
2899 case MONO_PATCH_INFO_NONE:
2900 break;
2901 case MONO_PATCH_INFO_RGCTX_FETCH: {
2902 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
2903 guint32 slot = -1;
2904
2905 switch (entry->data->type) {
2906 case MONO_PATCH_INFO_CLASS:
2907 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));
2908 break;
2909 case MONO_PATCH_INFO_METHOD:
2910 case MONO_PATCH_INFO_METHODCONST:
2911 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));
2912 break;
2913 case MONO_PATCH_INFO_FIELD:
2914 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));
2915 break;
2916 default:
2917 g_assert_not_reached ();
2918 break;
2919 }
2920
2921 target = mono_create_rgctx_lazy_fetch_trampoline (slot);
2922 break;
2923 }
2924 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
2925 target = mono_create_generic_class_init_trampoline ();
2926 break;
2927 case MONO_PATCH_INFO_MONITOR_ENTER:
2928 target = mono_create_monitor_enter_trampoline ();
2929 break;
2930 case MONO_PATCH_INFO_MONITOR_EXIT:
2931 target = mono_create_monitor_exit_trampoline ();
2932 break;
2933 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
2934 case MONO_PATCH_INFO_SEQ_POINT_INFO:
2935 if (!run_cctors)
2936 /* AOT, not needed */
2937 target = NULL;
2938 else
2939 target = mono_arch_get_seq_point_info (domain, code);
2940 break;
2941 #endif
2942 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
2943 #ifdef MONO_ARCH_LLVM_SUPPORTED
2944 g_assert (mono_use_llvm);
2945 target = mono_create_llvm_imt_trampoline (domain, patch_info->data.imt_tramp->method, patch_info->data.imt_tramp->vt_offset);
2946 #else
2947 g_assert_not_reached ();
2948 #endif
2949 break;
2950 default:
2951 g_assert_not_reached ();
2952 }
2953
2954 return (gpointer)target;
2955 }
2956
2957 void
2958 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
2959 {
2960 ins->inst_offset = native_offset;
2961 g_ptr_array_add (cfg->seq_points, ins);
2962 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2963 bb->last_seq_point = ins;
2964 }
2965
2966 #ifndef DISABLE_JIT
2967
2968 static void
2969 mono_compile_create_vars (MonoCompile *cfg)
2970 {
2971 MonoMethodSignature *sig;
2972 MonoMethodHeader *header;
2973 int i;
2974
2975 header = cfg->header;
2976
2977 sig = mono_method_signature (cfg->method);
2978
2979 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2980 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2981 /* Inhibit optimizations */
2982 cfg->ret->flags |= MONO_INST_VOLATILE;
2983 }
2984 if (cfg->verbose_level > 2)
2985 g_print ("creating vars\n");
2986
2987 cfg->args = mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2988
2989 if (sig->hasthis)
2990 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2991
2992 for (i = 0; i < sig->param_count; ++i) {
2993 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2994 }
2995
2996 if (cfg->verbose_level > 2) {
2997 if (cfg->ret) {
2998 printf ("\treturn : ");
2999 mono_print_ins (cfg->ret);
3000 }
3001
3002 if (sig->hasthis) {
3003 printf ("\tthis: ");
3004 mono_print_ins (cfg->args [0]);
3005 }
3006
3007 for (i = 0; i < sig->param_count; ++i) {
3008 printf ("\targ [%d]: ", i);
3009 mono_print_ins (cfg->args [i + sig->hasthis]);
3010 }
3011 }
3012
3013 cfg->locals_start = cfg->num_varinfo;
3014 cfg->locals = mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
3015
3016 if (cfg->verbose_level > 2)
3017 g_print ("creating locals\n");
3018
3019 for (i = 0; i < header->num_locals; ++i)
3020 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
3021
3022 if (cfg->verbose_level > 2)
3023 g_print ("locals done\n");
3024
3025 mono_arch_create_vars (cfg);
3026 }
3027
3028 #endif /* #ifndef DISABLE_JIT */
3029
3030 void
3031 mono_print_code (MonoCompile *cfg, const char* msg)
3032 {
3033 MonoBasicBlock *bb;
3034
3035 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3036 mono_print_bb (bb, msg);
3037 }
3038
3039 #ifndef DISABLE_JIT
3040
3041 static void
3042 mono_postprocess_patches (MonoCompile *cfg)
3043 {
3044 MonoJumpInfo *patch_info;
3045 int i;
3046
3047 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3048 switch (patch_info->type) {
3049 case MONO_PATCH_INFO_ABS: {
3050 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
3051
3052 /*
3053 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
3054 * absolute address.
3055 */
3056 if (info) {
3057 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
3058 // FIXME: CLEAN UP THIS MESS.
3059 if ((cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) &&
3060 strstr (cfg->method->name, info->name)) {
3061 /*
3062 * This is an icall wrapper, and this is a call to the
3063 * wrapped function.
3064 */
3065 if (cfg->compile_aot) {
3066 patch_info->type = MONO_PATCH_INFO_JIT_ICALL_ADDR;
3067 patch_info->data.name = info->name;
3068 }
3069 } else {
3070 /* for these array methods we currently register the same function pointer
3071 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
3072 * will return the incorrect one depending on the order they are registered.
3073 * See tests/test-arr.cs
3074 */
3075 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
3076 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
3077 patch_info->data.name = info->name;
3078 }
3079 }
3080 }
3081
3082 if (patch_info->type == MONO_PATCH_INFO_ABS) {
3083 if (cfg->abs_patches) {
3084 MonoJumpInfo *abs_ji = g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
3085 if (abs_ji) {
3086 patch_info->type = abs_ji->type;
3087 patch_info->data.target = abs_ji->data.target;
3088 }
3089 }
3090 }
3091
3092 break;
3093 }
3094 case MONO_PATCH_INFO_SWITCH: {
3095 gpointer *table;
3096 if (cfg->method->dynamic) {
3097 table = mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
3098 } else {
3099 table = mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
3100 }
3101
3102 for (i = 0; i < patch_info->data.table->table_size; i++) {
3103 /* Might be NULL if the switch is eliminated */
3104 if (patch_info->data.table->table [i]) {
3105 g_assert (patch_info->data.table->table [i]->native_offset);
3106 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
3107 } else {
3108 table [i] = NULL;
3109 }
3110 }
3111 patch_info->data.table->table = (MonoBasicBlock**)table;
3112 break;
3113 }
3114 case MONO_PATCH_INFO_METHOD_JUMP: {
3115 GSList *list;
3116 MonoDomain *domain = cfg->domain;
3117 unsigned char *ip = cfg->native_code + patch_info->ip.i;
3118
3119 mono_domain_lock (domain);
3120 if (!domain_jit_info (domain)->jump_target_hash)
3121 domain_jit_info (domain)->jump_target_hash = g_hash_table_new (NULL, NULL);
3122 list = g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
3123 list = g_slist_prepend (list, ip);
3124 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, list);
3125 mono_domain_unlock (domain);
3126 break;
3127 }
3128 default:
3129 /* do nothing */
3130 break;
3131 }
3132 }
3133 }
3134
3135 static void
3136 collect_pred_seq_points (MonoBasicBlock *bb, MonoInst *ins, GSList **next, int depth)
3137 {
3138 int i;
3139 MonoBasicBlock *in_bb;
3140
3141 for (i = 0; i < bb->in_count; ++i) {
3142 in_bb = bb->in_bb [i];
3143
3144 if (in_bb->last_seq_point) {
3145 next [in_bb->last_seq_point->backend.size] = g_slist_append (next [in_bb->last_seq_point->backend.size], GUINT_TO_POINTER (ins->backend.size));
3146 } else {
3147 /* Have to look at its predecessors */
3148 if (depth < 5)
3149 collect_pred_seq_points (in_bb, ins, next, depth + 1);
3150 }
3151 }
3152 }
3153
3154 static void
3155 mono_save_seq_point_info (MonoCompile *cfg)
3156 {
3157 MonoBasicBlock *bb;
3158 GSList *bb_seq_points, *l;
3159 MonoInst *last;
3160 MonoDomain *domain = cfg->domain;
3161 int i;
3162 MonoSeqPointInfo *info;
3163 GSList **next;
3164
3165 if (!cfg->seq_points)
3166 return;
3167
3168 info = g_malloc0 (sizeof (MonoSeqPointInfo) + (cfg->seq_points->len - MONO_ZERO_LEN_ARRAY) * sizeof (SeqPoint));
3169 info->len = cfg->seq_points->len;
3170 for (i = 0; i < cfg->seq_points->len; ++i) {
3171 SeqPoint *sp = &info->seq_points [i];
3172 MonoInst *ins = g_ptr_array_index (cfg->seq_points, i);
3173
3174 sp->il_offset = ins->inst_imm;
3175 sp->native_offset = ins->inst_offset;
3176
3177 /* Used below */
3178 ins->backend.size = i;
3179 }
3180
3181 /*
3182 * For each sequence point, compute the list of sequence points immediately
3183 * following it, this is needed to implement 'step over' in the debugger agent.
3184 */
3185 next = g_new0 (GSList*, cfg->seq_points->len);
3186 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3187 bb_seq_points = g_slist_reverse (bb->seq_points);
3188 last = NULL;
3189 for (l = bb_seq_points; l; l = l->next) {
3190 MonoInst *ins = l->data;
3191
3192 if (!(ins->flags & MONO_INST_SINGLE_STEP_LOC))
3193 continue;
3194
3195 if (last != NULL) {
3196 /* Link with the previous seq point in the same bb */
3197 next [last->backend.size] = g_slist_append (next [last->backend.size], GUINT_TO_POINTER (ins->backend.size));
3198 } else {
3199 /* Link with the last bb in the previous bblocks */
3200 collect_pred_seq_points (bb, ins, next, 0);
3201 }
3202
3203 last = ins;
3204 }
3205 }
3206
3207 if (cfg->verbose_level > 2) {
3208 printf ("\nSEQ POINT MAP: \n");
3209 }
3210
3211 for (i = 0; i < cfg->seq_points->len; ++i) {
3212 SeqPoint *sp = &info->seq_points [i];
3213 GSList *l;
3214 int j, next_index;
3215
3216 sp->next_len = g_slist_length (next [i]);
3217 sp->next = g_new (int, sp->next_len);
3218 j = 0;
3219 if (cfg->verbose_level > 2 && next [i]) {
3220 printf ("\t0x%x ->", sp->il_offset);
3221 for (l = next [i]; l; l = l->next) {
3222 next_index = GPOINTER_TO_UINT (l->data);
3223 printf (" 0x%x", info->seq_points [next_index].il_offset);
3224 }
3225 printf ("\n");
3226 }
3227 for (l = next [i]; l; l = l->next) {
3228 next_index = GPOINTER_TO_UINT (l->data);
3229 sp->next [j ++] = next_index;
3230 }
3231 g_slist_free (next [i]);
3232 }
3233 g_free (next);
3234
3235 cfg->seq_point_info = info;
3236
3237 // FIXME: dynamic methods
3238 mono_domain_lock (domain);
3239 g_hash_table_insert (domain_jit_info (domain)->seq_points, cfg->method_to_register, info);
3240 mono_domain_unlock (domain);
3241
3242 g_ptr_array_free (cfg->seq_points, TRUE);
3243 cfg->seq_points = NULL;
3244 }
3245
3246 void
3247 mono_codegen (MonoCompile *cfg)
3248 {
3249 MonoBasicBlock *bb;
3250 int max_epilog_size;
3251 guint8 *code;
3252
3253 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3254 cfg->spill_count = 0;
3255 /* we reuse dfn here */
3256 /* bb->dfn = bb_count++; */
3257
3258 mono_arch_lowering_pass (cfg, bb);
3259
3260 if (cfg->opt & MONO_OPT_PEEPHOLE)
3261 mono_arch_peephole_pass_1 (cfg, bb);
3262
3263 if (!cfg->globalra)
3264 mono_local_regalloc (cfg, bb);
3265
3266 if (cfg->opt & MONO_OPT_PEEPHOLE)
3267 mono_arch_peephole_pass_2 (cfg, bb);
3268 }
3269
3270 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
3271 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
3272
3273 code = mono_arch_emit_prolog (cfg);
3274
3275 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
3276 code = mono_arch_instrument_prolog (cfg, mono_profiler_method_enter, code, FALSE);
3277
3278 cfg->code_len = code - cfg->native_code;
3279 cfg->prolog_end = cfg->code_len;
3280
3281 mono_debug_open_method (cfg);
3282
3283 /* emit code all basic blocks */
3284 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3285 bb->native_offset = cfg->code_len;
3286 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
3287 mono_arch_output_basic_block (cfg, bb);
3288 bb->native_length = cfg->code_len - bb->native_offset;
3289
3290 if (bb == cfg->bb_exit) {
3291 cfg->epilog_begin = cfg->code_len;
3292
3293 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE) {
3294 code = cfg->native_code + cfg->code_len;
3295 code = mono_arch_instrument_epilog (cfg, mono_profiler_method_leave, code, FALSE);
3296 cfg->code_len = code - cfg->native_code;
3297 g_assert (cfg->code_len < cfg->code_size);
3298 }
3299
3300 mono_arch_emit_epilog (cfg);
3301 }
3302 }
3303
3304 mono_arch_emit_exceptions (cfg);
3305
3306 max_epilog_size = 0;
3307
3308 code = cfg->native_code + cfg->code_len;
3309
3310 /* we always allocate code in cfg->domain->code_mp to increase locality */
3311 cfg->code_size = cfg->code_len + max_epilog_size;
3312 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
3313
3314 if (cfg->method->dynamic) {
3315 guint unwindlen = 0;
3316 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3317 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
3318 #endif
3319 /* Allocate the code into a separate memory pool so it can be freed */
3320 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
3321 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
3322 mono_domain_lock (cfg->domain);
3323 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
3324 mono_domain_unlock (cfg->domain);
3325
3326 code = mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + unwindlen);
3327 } else {
3328 guint unwindlen = 0;
3329 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3330 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
3331 #endif
3332 code = mono_domain_code_reserve (cfg->domain, cfg->code_size + unwindlen);
3333 }
3334
3335 memcpy (code, cfg->native_code, cfg->code_len);
3336 g_free (cfg->native_code);
3337 cfg->native_code = code;
3338 code = cfg->native_code + cfg->code_len;
3339
3340 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
3341 mono_postprocess_patches (cfg);
3342
3343 #ifdef VALGRIND_JIT_REGISTER_MAP
3344 if (valgrind_register){
3345 char* nm = mono_method_full_name (cfg->method, TRUE);
3346 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
3347 g_free (nm);
3348 }
3349 #endif
3350
3351 if (cfg->verbose_level > 0) {
3352 char* nm = mono_method_full_name (cfg->method, TRUE);
3353 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
3354 nm,
3355 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3356 g_free (nm);
3357 }
3358
3359 {
3360 gboolean is_generic = FALSE;
3361
3362 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
3363 cfg->method->klass->generic_container || cfg->method->klass->generic_class) {
3364 is_generic = TRUE;
3365 }
3366
3367 if (cfg->generic_sharing_context)
3368 g_assert (is_generic);
3369 }
3370
3371 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
3372 mono_arch_save_unwind_info (cfg);
3373 #endif
3374
3375 mono_arch_patch_code (cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors);
3376
3377 if (cfg->method->dynamic) {
3378 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
3379 } else {
3380 mono_domain_code_commit (cfg->domain, cfg->native_code, cfg->code_size, cfg->code_len);
3381 }
3382 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
3383
3384 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
3385
3386 mono_debug_close_method (cfg);
3387
3388 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3389 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
3390 #endif
3391 }
3392
3393 static void
3394 compute_reachable (MonoBasicBlock *bb)
3395 {
3396 int i;
3397
3398 if (!(bb->flags & BB_VISITED)) {
3399 bb->flags |= BB_VISITED;
3400 for (i = 0; i < bb->out_count; ++i)
3401 compute_reachable (bb->out_bb [i]);
3402 }
3403 }
3404
3405 static MonoJitInfo*
3406 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
3407 {
3408 GSList *tmp;
3409 MonoMethodHeader *header;
3410 MonoJitInfo *jinfo;
3411 int num_clauses;
3412 int generic_info_size;
3413 int holes_size = 0, num_holes = 0;
3414
3415 g_assert (method_to_compile == cfg->method);
3416 header = cfg->header;
3417
3418 if (cfg->generic_sharing_context)
3419 generic_info_size = sizeof (MonoGenericJitInfo);
3420 else
3421 generic_info_size = 0;
3422
3423 if (cfg->try_block_holes) {
3424 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
3425 TryBlockHole *hole = tmp->data;
3426 MonoExceptionClause *ec = hole->clause;
3427 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
3428 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
3429 g_assert (clause_last_bb);
3430
3431 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
3432 if (clause_last_bb->native_offset != hole_end)
3433 ++num_holes;
3434 }
3435 if (num_holes)
3436 holes_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
3437 if (G_UNLIKELY (cfg->verbose_level >= 4))
3438 printf ("Number of try block holes %d\n", num_holes);
3439 }
3440
3441 if (COMPILE_LLVM (cfg))
3442 num_clauses = cfg->llvm_ex_info_len;
3443 else
3444 num_clauses = header->num_clauses;
3445
3446 if (cfg->method->dynamic) {
3447 jinfo = g_malloc0 (MONO_SIZEOF_JIT_INFO + (num_clauses * sizeof (MonoJitExceptionInfo)) +
3448 generic_info_size + holes_size);
3449 } else {
3450 jinfo = mono_domain_alloc0 (cfg->domain, MONO_SIZEOF_JIT_INFO +
3451 (num_clauses * sizeof (MonoJitExceptionInfo)) +
3452 generic_info_size + holes_size);
3453 }
3454
3455 jinfo->method = cfg->method_to_register;
3456 jinfo->code_start = cfg->native_code;
3457 jinfo->code_size = cfg->code_len;
3458 jinfo->used_regs = cfg->used_int_regs;
3459 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
3460 jinfo->cas_inited = FALSE; /* initialization delayed at the first stalk walk using this method */
3461 jinfo->num_clauses = num_clauses;
3462 if (COMPILE_LLVM (cfg))
3463 jinfo->from_llvm = TRUE;
3464
3465 if (cfg->generic_sharing_context) {
3466 MonoInst *inst;
3467 MonoGenericJitInfo *gi;
3468
3469 jinfo->has_generic_jit_info = 1;
3470
3471 gi = mono_jit_info_get_generic_jit_info (jinfo);
3472 g_assert (gi);
3473
3474 gi->generic_sharing_context = cfg->generic_sharing_context;
3475
3476 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
3477 mini_method_get_context (method_to_compile)->method_inst ||
3478 method_to_compile->klass->valuetype) {
3479 g_assert (cfg->rgctx_var);
3480 }
3481
3482 gi->has_this = 1;
3483
3484 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
3485 mini_method_get_context (method_to_compile)->method_inst ||
3486 method_to_compile->klass->valuetype) {
3487 inst = cfg->rgctx_var;
3488 if (!COMPILE_LLVM (cfg))
3489 g_assert (inst->opcode == OP_REGOFFSET);
3490 } else {
3491 inst = cfg->args [0];
3492 }
3493
3494 if (COMPILE_LLVM (cfg)) {
3495 g_assert (cfg->llvm_this_reg != -1);
3496 gi->this_in_reg = 0;
3497 gi->this_reg = cfg->llvm_this_reg;
3498 gi->this_offset = cfg->llvm_this_offset;
3499 } else if (inst->opcode == OP_REGVAR) {
3500 gi->this_in_reg = 1;
3501 gi->this_reg = inst->dreg;
3502 } else {
3503 g_assert (inst->opcode == OP_REGOFFSET);
3504 #ifdef TARGET_X86
3505 g_assert (inst->inst_basereg == X86_EBP);
3506 #elif defined(TARGET_AMD64)
3507 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
3508 #endif
3509 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
3510
3511 gi->this_in_reg = 0;
3512 gi->this_reg = inst->inst_basereg;
3513 gi->this_offset = inst->inst_offset;
3514 }
3515 }
3516
3517 if (num_holes) {
3518 MonoTryBlockHoleTableJitInfo *table;
3519 int i;
3520
3521 jinfo->has_try_block_holes = 1;
3522 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
3523 table->num_holes = (guint16)num_holes;
3524 i = 0;
3525 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
3526 guint32 start_bb_offset;
3527 MonoTryBlockHoleJitInfo *hole;
3528 TryBlockHole *hole_data = tmp->data;
3529 MonoExceptionClause *ec = hole_data->clause;
3530 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
3531 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
3532 g_assert (clause_last_bb);
3533
3534 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
3535 if (clause_last_bb->native_offset == hole_end)
3536 continue;
3537
3538 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
3539 hole = &table->holes [i++];
3540 hole->clause = hole_data->clause - &header->clauses [0];
3541 hole->offset = (guint32)hole_data->start_offset;
3542 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
3543
3544 if (G_UNLIKELY (cfg->verbose_level >= 4))
3545 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
3546 }
3547 g_assert (i == num_holes);
3548 }
3549
3550 if (COMPILE_LLVM (cfg)) {
3551 if (num_clauses)
3552 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
3553 } else if (header->num_clauses) {
3554 int i;
3555
3556 for (i = 0; i < header->num_clauses; i++) {
3557 MonoExceptionClause *ec = &header->clauses [i];
3558 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3559 MonoBasicBlock *tblock;
3560 MonoInst *exvar;
3561
3562 ei->flags = ec->flags;
3563
3564 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
3565 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
3566
3567 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3568 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
3569 g_assert (tblock);
3570 ei->data.filter = cfg->native_code + tblock->native_offset;
3571 } else {
3572 ei->data.catch_class = ec->data.catch_class;
3573 }
3574
3575 tblock = cfg->cil_offset_to_bb [ec->try_offset];
3576 g_assert (tblock);
3577 ei->try_start = cfg->native_code + tblock->native_offset;
3578 g_assert (tblock->native_offset);
3579 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
3580 g_assert (tblock);
3581 ei->try_end = cfg->native_code + tblock->native_offset;
3582 g_assert (tblock->native_offset);
3583 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
3584 g_assert (tblock);
3585 ei->handler_start = cfg->native_code + tblock->native_offset;
3586
3587 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
3588 TryBlockHole *hole = tmp->data;
3589 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
3590 if (hole->clause == ec && hole_end == ei->try_end) {
3591 if (G_UNLIKELY (cfg->verbose_level >= 4))
3592 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
3593
3594 ei->try_end = cfg->native_code + hole->start_offset;
3595 break;
3596 }
3597 }
3598
3599 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
3600 int end_offset;
3601 if (ec->handler_offset + ec->handler_len < header->code_size) {
3602 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
3603 g_assert (tblock);
3604 end_offset = tblock->native_offset;
3605 } else {
3606 end_offset = cfg->epilog_begin;
3607 }
3608 ei->data.handler_end = cfg->native_code + end_offset;
3609 }
3610 }
3611 }
3612
3613 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
3614 int i;
3615 for (i = 0; i < jinfo->num_clauses; i++) {
3616 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3617 int start = (guint8*)ei->try_start - cfg->native_code;
3618 int end = (guint8*)ei->try_end - cfg->native_code;
3619 int handler = (guint8*)ei->handler_start - cfg->native_code;
3620
3621 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x\n", i, ei->flags, start, end, handler);
3622 }
3623 }
3624
3625 /*
3626 * Its possible to generate dwarf unwind info for xdebug etc, but not actually
3627 * using it during runtime, hence the define.
3628 */
3629 #ifdef MONO_ARCH_HAVE_XP_UNWIND
3630 if (cfg->encoded_unwind_ops) {
3631 jinfo->used_regs = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
3632 g_free (cfg->encoded_unwind_ops);
3633 } else if (cfg->unwind_ops) {
3634 guint32 info_len;
3635 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
3636
3637 jinfo->used_regs = mono_cache_unwind_info (unwind_info, info_len);
3638 g_free (unwind_info);
3639 }
3640 #endif
3641
3642 return jinfo;
3643 }
3644 #endif
3645
3646 /*
3647 * mini_get_shared_method:
3648 *
3649 * Return the method which is actually compiled/registered when doing generic sharing.
3650 */
3651 MonoMethod*
3652 mini_get_shared_method (MonoMethod *method)
3653 {
3654 MonoGenericContext shared_context;
3655 MonoMethod *declaring_method, *res;
3656 int i;
3657 gboolean partial = FALSE;
3658
3659 if (method->is_generic || method->klass->generic_container)
3660 declaring_method = method;
3661 else
3662 declaring_method = mono_method_get_declaring_generic_method (method);
3663
3664 if (declaring_method->is_generic)
3665 shared_context = mono_method_get_generic_container (declaring_method)->context;
3666 else
3667 shared_context = declaring_method->klass->generic_container->context;
3668
3669 /* Handle partial sharing */
3670 if (method != declaring_method && method->is_inflated && !mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE)) {
3671 MonoGenericContext *context = mono_method_get_context (method);
3672 MonoGenericInst *inst;
3673 MonoType **type_argv;
3674
3675 /*
3676 * Create the shared context by replacing the ref type arguments with
3677 * type parameters, and keeping the rest.
3678 */
3679 partial = TRUE;
3680 inst = context->class_inst;
3681 if (inst) {
3682 type_argv = g_new0 (MonoType*, inst->type_argc);
3683 for (i = 0; i < inst->type_argc; ++i) {
3684 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
3685 type_argv [i] = shared_context.class_inst->type_argv [i];
3686 else
3687 type_argv [i] = inst->type_argv [i];
3688 }
3689
3690 shared_context.class_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
3691 g_free (type_argv);
3692 }
3693
3694 inst = context->method_inst;
3695 if (inst) {
3696 type_argv = g_new0 (MonoType*, inst->type_argc);
3697 for (i = 0; i < inst->type_argc; ++i) {
3698 if (MONO_TYPE_IS_REFERENCE (inst->type_argv [i]) || inst->type_argv [i]->type == MONO_TYPE_VAR || inst->type_argv [i]->type == MONO_TYPE_MVAR)
3699 type_argv [i] = shared_context.method_inst->type_argv [i];
3700 else
3701 type_argv [i] = inst->type_argv [i];
3702 }
3703
3704 shared_context.method_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
3705 g_free (type_argv);
3706 }
3707 }
3708
3709 res = mono_class_inflate_generic_method (declaring_method, &shared_context);
3710 if (!partial) {
3711 /* The result should be an inflated method whose parent is not inflated */
3712 g_assert (!res->klass->is_inflated);
3713 }
3714 return res;
3715 }
3716
3717 #ifndef DISABLE_JIT
3718 /*
3719 * mini_method_compile:
3720 * @method: the method to compile
3721 * @opts: the optimization flags to use
3722 * @domain: the domain where the method will be compiled in
3723 * @run_cctors: whether we should run type ctors if possible
3724 * @compile_aot: whether this is an AOT compilation
3725 * @parts: debug flag
3726 *
3727 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3728 * field in the returned struct to see if compilation succeded.
3729 */
3730 MonoCompile*
3731 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
3732 {
3733 MonoMethodHeader *header;
3734 MonoMethodSignature *sig;
3735 MonoError err;
3736 guint8 *ip;
3737 MonoCompile *cfg;
3738 int dfn, i, code_size_ratio;
3739 gboolean deadce_has_run = FALSE;
3740 gboolean try_generic_shared, try_llvm;
3741 MonoMethod *method_to_compile, *method_to_register;
3742
3743 mono_jit_stats.methods_compiled++;
3744 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3745 mono_profiler_method_jit (method);
3746 if (MONO_PROBE_METHOD_COMPILE_BEGIN_ENABLED ())
3747 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3748
3749 if (compile_aot)
3750 /*
3751 * We might get passed the original generic method definition or
3752 * instances with type parameters.
3753 * FIXME: Remove the method->klass->generic_class limitation.
3754 */
3755 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3756 (opts & MONO_OPT_GSHARED) && ((method->is_generic || method->klass->generic_container) || (!method->klass->generic_class && mono_method_is_generic_sharable_impl (method, TRUE)));
3757 else
3758 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3759 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable_impl (method, FALSE);
3760
3761 if (opts & MONO_OPT_GSHARED) {
3762 if (try_generic_shared)
3763 mono_stats.generics_sharable_methods++;
3764 else if (mono_method_is_generic_impl (method))
3765 mono_stats.generics_unsharable_methods++;
3766 }
3767
3768 try_llvm = TRUE;
3769
3770 #ifndef ENABLE_LLVM
3771 try_llvm = FALSE;
3772 #endif
3773
3774 restart_compile:
3775 if (try_generic_shared) {
3776 method_to_compile = mini_get_shared_method (method);
3777 g_assert (method_to_compile);
3778 } else {
3779 method_to_compile = method;
3780 }
3781
3782 cfg = g_new0 (MonoCompile, 1);
3783 cfg->method = method_to_compile;
3784 cfg->header = mono_method_get_header (cfg->method);
3785 cfg->mempool = mono_mempool_new ();
3786 cfg->opt = opts;
3787 cfg->prof_options = mono_profiler_get_events ();
3788 cfg->run_cctors = run_cctors;
3789 cfg->domain = domain;
3790 cfg->verbose_level = mini_verbose;
3791 cfg->compile_aot = compile_aot;
3792 cfg->skip_visibility = method->skip_visibility;
3793 cfg->orig_method = method;
3794 cfg->gen_seq_points = debug_options.gen_seq_points;
3795 cfg->explicit_null_checks = debug_options.explicit_null_checks;
3796 if (try_generic_shared)
3797 cfg->generic_sharing_context = (MonoGenericSharingContext*)&cfg->generic_sharing_context;
3798 cfg->compile_llvm = try_llvm;
3799 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3800
3801 if (cfg->gen_seq_points)
3802 cfg->seq_points = g_ptr_array_new ();
3803
3804 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || method->klass->generic_container)) {
3805 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3806 return cfg;
3807 }
3808
3809 if (cfg->generic_sharing_context) {
3810 method_to_register = method_to_compile;
3811 } else {
3812 g_assert (method == method_to_compile);
3813 method_to_register = method;
3814 }
3815 cfg->method_to_register = method_to_register;
3816
3817 mono_error_init (&err);
3818 sig = mono_method_signature_checked (cfg->method, &err);
3819 if (!sig) {
3820 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3821 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3822 mono_error_cleanup (&err);
3823 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
3824 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3825 return cfg;
3826 }
3827
3828 header = cfg->header;
3829 if (!header) {
3830 MonoLoaderError *error;
3831
3832 if ((error = mono_loader_get_last_error ())) {
3833 cfg->exception_type = error->exception_type;
3834 } else {
3835 cfg->exception_type = MONO_EXCEPTION_INVALID_PROGRAM;
3836 cfg->exception_message = g_strdup_printf ("Missing or incorrect header for method %s", cfg->method->name);
3837 }
3838 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
3839 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3840 return cfg;
3841 }
3842
3843 #ifdef ENABLE_LLVM
3844 {
3845 static gboolean inited;
3846
3847 if (!inited) {
3848 mono_counters_register ("Methods JITted using LLVM", MONO_COUNTER_JIT | MONO_COUNTER_INT, &methods_with_llvm);
3849 mono_counters_register ("Methods JITted using mono JIT", MONO_COUNTER_JIT | MONO_COUNTER_INT, &methods_without_llvm);
3850 inited = TRUE;
3851 }
3852
3853 /*
3854 * Check for methods which cannot be compiled by LLVM early, to avoid
3855 * the extra compilation pass.
3856 */
3857 if (COMPILE_LLVM (cfg)) {
3858 mono_llvm_check_method_supported (cfg);
3859 if (cfg->disable_llvm) {
3860 if (cfg->verbose_level >= 1) {
3861 //nm = mono_method_full_name (cfg->method, TRUE);
3862 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3863 //g_free (nm);
3864 }
3865 InterlockedIncrement (&methods_without_llvm);
3866 mono_destroy_compile (cfg);
3867 try_llvm = FALSE;
3868 goto restart_compile;
3869 }
3870 }
3871 }
3872 #endif
3873
3874 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3875 if (mono_debug_using_mono_debugger () || debug_options.mdb_optimizations) {
3876 cfg->disable_reuse_registers = TRUE;
3877 cfg->disable_reuse_stack_slots = TRUE;
3878 /*
3879 * This decreases the change the debugger will read registers/stack slots which are
3880 * not yet initialized.
3881 */
3882 cfg->disable_initlocals_opt = TRUE;
3883
3884 cfg->extend_live_ranges = TRUE;
3885
3886 /* Temporarily disable this when running in the debugger until we have support
3887 * for this in the debugger. */
3888 cfg->disable_omit_fp = TRUE;
3889
3890 /* The debugger needs all locals to be on the stack or in a global register */
3891 cfg->disable_vreg_to_lvreg = TRUE;
3892
3893 /* Don't remove unused variables when running inside the debugger since the user
3894 * may still want to view them. */
3895 cfg->disable_deadce_vars = TRUE;
3896
3897 // cfg->opt |= MONO_OPT_SHARED;
3898 cfg->opt &= ~MONO_OPT_DEADCE;
3899 cfg->opt &= ~MONO_OPT_INLINE;
3900 cfg->opt &= ~MONO_OPT_COPYPROP;
3901 cfg->opt &= ~MONO_OPT_CONSPROP;
3902 cfg->opt &= ~MONO_OPT_GSHARED;
3903
3904 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3905 cfg->disable_out_of_line_bblocks = TRUE;
3906 }
3907
3908 if (mono_using_xdebug) {
3909 /*
3910 * Make each variable use its own register/stack slot and extend
3911 * their liveness to cover the whole method, making them displayable
3912 * in gdb even after they are dead.
3913 */
3914 cfg->disable_reuse_registers = TRUE;
3915 cfg->disable_reuse_stack_slots = TRUE;
3916 cfg->extend_live_ranges = TRUE;
3917 cfg->compute_precise_live_ranges = TRUE;
3918 }
3919
3920 mini_gc_init_gc_map (cfg);
3921
3922 if (COMPILE_LLVM (cfg)) {
3923 cfg->opt |= MONO_OPT_ABCREM;
3924 }
3925
3926 if (getenv ("MONO_VERBOSE_METHOD")) {
3927 char *name = getenv ("MONO_VERBOSE_METHOD");
3928
3929 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3930 MonoMethodDesc *desc;
3931
3932 desc = mono_method_desc_new (name, TRUE);
3933 if (mono_method_desc_full_match (desc, cfg->method)) {
3934 cfg->verbose_level = 4;
3935 }
3936 mono_method_desc_free (desc);
3937 } else {
3938 if (strcmp (cfg->method->name, getenv ("MONO_VERBOSE_METHOD")) == 0)
3939 cfg->verbose_level = 4;
3940 }
3941 }
3942
3943 ip = (guint8 *)header->code;
3944
3945 cfg->intvars = mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3946
3947 if (cfg->verbose_level > 0) {
3948 if (COMPILE_LLVM (cfg))
3949 g_print ("converting llvm method %s\n", mono_method_full_name (method, TRUE));
3950 else if (cfg->generic_sharing_context)
3951 g_print ("converting shared method %s\n", mono_method_full_name (method_to_compile, TRUE));
3952 else
3953 g_print ("converting method %s\n", mono_method_full_name (method, TRUE));
3954 }
3955
3956 if (cfg->opt & (MONO_OPT_ABCREM | MONO_OPT_SSAPRE))
3957 cfg->opt |= MONO_OPT_SSA;
3958
3959 /*
3960 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")))
3961 cfg->globalra = TRUE;
3962 */
3963
3964 //cfg->globalra = TRUE;
3965
3966 //if (!strcmp (cfg->method->klass->name, "Tests") && !cfg->method->wrapper_type)
3967 // cfg->globalra = TRUE;
3968
3969 {
3970 static int count = 0;
3971 count ++;
3972
3973 /*
3974 if (getenv ("COUNT2")) {
3975 cfg->globalra = TRUE;
3976 if (count == atoi (getenv ("COUNT2")))
3977 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
3978 if (count > atoi (getenv ("COUNT2")))
3979 cfg->globalra = FALSE;
3980 }
3981 */
3982 }
3983
3984 if (header->clauses)
3985 cfg->globalra = FALSE;
3986
3987 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED)
3988 /* The code in the prolog clobbers caller saved registers */
3989 cfg->globalra = FALSE;
3990
3991 // FIXME: Disable globalra in case of tracing/profiling
3992
3993 if (cfg->method->save_lmf)
3994 /* The LMF saving code might clobber caller saved registers */
3995 cfg->globalra = FALSE;
3996
3997 if (header->code_size > 5000)
3998 // FIXME:
3999 /* Too large bblocks could overflow the ins positions */
4000 cfg->globalra = FALSE;
4001
4002 cfg->rs = mono_regstate_new ();
4003 if (cfg->globalra)
4004 cfg->rs->next_vreg = MONO_MAX_IREGS + MONO_MAX_FREGS;
4005 cfg->next_vreg = cfg->rs->next_vreg;
4006
4007 /* FIXME: Fix SSA to handle branches inside bblocks */
4008 if (cfg->opt & MONO_OPT_SSA)
4009 cfg->enable_extended_bblocks = FALSE;
4010
4011 /*
4012 * FIXME: This confuses liveness analysis because variables which are assigned after
4013 * a branch inside a bblock become part of the kill set, even though the assignment
4014 * might not get executed. This causes the optimize_initlocals pass to delete some
4015 * assignments which are needed.
4016 * Also, the mono_if_conversion pass needs to be modified to recognize the code
4017 * created by this.
4018 */
4019 //cfg->enable_extended_bblocks = TRUE;
4020
4021 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
4022 if (mono_compile_is_broken (cfg))
4023 return cfg;
4024
4025 /*
4026 * create MonoInst* which represents arguments and local variables
4027 */
4028 mono_compile_create_vars (cfg);
4029
4030 /* SSAPRE is not supported on linear IR */
4031 cfg->opt &= ~MONO_OPT_SSAPRE;
4032
4033 i = mono_method_to_ir (cfg, method_to_compile, NULL, NULL, NULL, NULL, NULL, 0, FALSE);
4034
4035 if (i < 0) {
4036 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
4037 if (compile_aot) {
4038 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4039 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4040 return cfg;
4041 }
4042 mono_destroy_compile (cfg);
4043 try_generic_shared = FALSE;
4044 goto restart_compile;
4045 }
4046 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
4047
4048 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4049 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4050 /* cfg contains the details of the failure, so let the caller cleanup */
4051 return cfg;
4052 }
4053
4054 mono_jit_stats.basic_blocks += cfg->num_bblocks;
4055 mono_jit_stats.max_basic_blocks = MAX (cfg->num_bblocks, mono_jit_stats.max_basic_blocks);
4056
4057 if (COMPILE_LLVM (cfg)) {
4058 MonoInst *ins;
4059
4060 /* The IR has to be in SSA form for LLVM */
4061 cfg->opt |= MONO_OPT_SSA;
4062
4063 // FIXME:
4064 if (cfg->ret) {
4065 // Allow SSA on the result value
4066 cfg->ret->flags &= ~MONO_INST_VOLATILE;
4067
4068 // Add an explicit return instruction referencing the return value
4069 MONO_INST_NEW (cfg, ins, OP_SETRET);
4070 ins->sreg1 = cfg->ret->dreg;
4071
4072 MONO_ADD_INS (cfg->bb_exit, ins);
4073 }
4074
4075 cfg->opt &= ~MONO_OPT_LINEARS;
4076
4077 /* FIXME: */
4078 cfg->opt &= ~MONO_OPT_BRANCH;
4079 }
4080
4081 /* todo: remove code when we have verified that the liveness for try/catch blocks
4082 * works perfectly
4083 */
4084 /*
4085 * Currently, this can't be commented out since exception blocks are not
4086 * processed during liveness analysis.
4087 * It is also needed, because otherwise the local optimization passes would
4088 * delete assignments in cases like this:
4089 * r1 <- 1
4090 * <something which throws>
4091 * r1 <- 2
4092 * This also allows SSA to be run on methods containing exception clauses, since
4093 * SSA will ignore variables marked VOLATILE.
4094 */
4095 mono_liveness_handle_exception_clauses (cfg);
4096
4097 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
4098
4099 if (!COMPILE_LLVM (cfg))
4100 mono_decompose_long_opts (cfg);
4101
4102 /* Should be done before branch opts */
4103 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP))
4104 mono_local_cprop (cfg);
4105
4106 if (cfg->opt & MONO_OPT_BRANCH)
4107 mono_optimize_branches (cfg);
4108
4109 /* This must be done _before_ global reg alloc and _after_ decompose */
4110 mono_handle_global_vregs (cfg);
4111 if (cfg->opt & MONO_OPT_DEADCE)
4112 mono_local_deadce (cfg);
4113 /* Disable this for LLVM to make the IR easier to handle */
4114 if (!COMPILE_LLVM (cfg))
4115 mono_if_conversion (cfg);
4116
4117 if ((cfg->opt & MONO_OPT_SSAPRE) || cfg->globalra)
4118 mono_remove_critical_edges (cfg);
4119
4120 /* Depth-first ordering on basic blocks */
4121 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
4122
4123 cfg->max_block_num = cfg->num_bblocks;
4124
4125 dfn = 0;
4126 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
4127 if (cfg->num_bblocks != dfn + 1) {
4128 MonoBasicBlock *bb;
4129
4130 cfg->num_bblocks = dfn + 1;
4131
4132 /* remove unreachable code, because the code in them may be
4133 * inconsistent (access to dead variables for example) */
4134 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4135 bb->flags &= ~BB_VISITED;
4136 compute_reachable (cfg->bb_entry);
4137 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4138 if (bb->flags & BB_EXCEPTION_HANDLER)
4139 compute_reachable (bb);
4140 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4141 if (!(bb->flags & BB_VISITED)) {
4142 if (cfg->verbose_level > 1)
4143 g_print ("found unreachable code in BB%d\n", bb->block_num);
4144 bb->code = bb->last_ins = NULL;
4145 while (bb->out_count)
4146 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
4147 }
4148 }
4149 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4150 bb->flags &= ~BB_VISITED;
4151 }
4152
4153 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
4154 /*
4155 * we disable some optimizations if there are too many variables
4156 * because JIT time may become too expensive. The actual number needs
4157 * to be tweaked and eventually the non-linear algorithms should be fixed.
4158 */
4159 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
4160 cfg->disable_ssa = TRUE;
4161 }
4162
4163 if (cfg->opt & MONO_OPT_LOOP) {
4164 mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM);
4165 mono_compute_natural_loops (cfg);
4166 }
4167
4168 /* after method_to_ir */
4169 if (parts == 1) {
4170 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4171 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4172 return cfg;
4173 }
4174
4175 /*
4176 if (header->num_clauses)
4177 cfg->disable_ssa = TRUE;
4178 */
4179
4180 //#define DEBUGSSA "logic_run"
4181 #define DEBUGSSA_CLASS "Tests"
4182 #ifdef DEBUGSSA
4183
4184 if (!cfg->disable_ssa) {
4185 mono_local_cprop (cfg);
4186
4187 #ifndef DISABLE_SSA
4188 mono_ssa_compute (cfg);
4189 #endif
4190 }
4191 #else
4192 if (cfg->opt & MONO_OPT_SSA) {
4193 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
4194 #ifndef DISABLE_SSA
4195 mono_ssa_compute (cfg);
4196 #endif
4197
4198 if (cfg->verbose_level >= 2) {
4199 print_dfn (cfg);
4200 }
4201 }
4202 }
4203 #endif
4204
4205 /* after SSA translation */
4206 if (parts == 2) {
4207 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4208 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4209 return cfg;
4210 }
4211
4212 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
4213 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
4214 #ifndef DISABLE_SSA
4215 mono_ssa_cprop (cfg);
4216 #endif
4217 }
4218 }
4219
4220 #ifndef DISABLE_SSA
4221 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
4222 //mono_ssa_strength_reduction (cfg);
4223
4224 if (cfg->opt & MONO_OPT_SSAPRE) {
4225 mono_perform_ssapre (cfg);
4226 //mono_local_cprop (cfg);
4227 }
4228
4229 if (cfg->opt & MONO_OPT_DEADCE) {
4230 mono_ssa_deadce (cfg);
4231 deadce_has_run = TRUE;
4232 }
4233
4234 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM))
4235 mono_perform_abc_removal (cfg);
4236
4237 mono_ssa_remove (cfg);
4238 mono_local_cprop (cfg);
4239 mono_handle_global_vregs (cfg);
4240 if (cfg->opt & MONO_OPT_DEADCE)
4241 mono_local_deadce (cfg);
4242
4243 if (cfg->opt & MONO_OPT_BRANCH) {
4244 MonoBasicBlock *bb;
4245
4246 mono_optimize_branches (cfg);
4247
4248 /* Have to recompute cfg->bblocks and bb->dfn */
4249 if (cfg->globalra) {
4250 mono_remove_critical_edges (cfg);
4251
4252 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4253 bb->dfn = 0;
4254
4255 /* Depth-first ordering on basic blocks */
4256 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
4257
4258 dfn = 0;
4259 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
4260 cfg->num_bblocks = dfn + 1;
4261 }
4262 }
4263 }
4264 #endif
4265
4266 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
4267 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM))
4268 mono_perform_abc_removal (cfg);
4269 }
4270
4271 /* after SSA removal */
4272 if (parts == 3) {
4273 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4274 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4275 return cfg;
4276 }
4277
4278 #ifdef MONO_ARCH_SOFT_FLOAT
4279 if (!COMPILE_LLVM (cfg))
4280 mono_decompose_soft_float (cfg);
4281 #endif
4282 if (!COMPILE_LLVM (cfg))
4283 mono_decompose_vtype_opts (cfg);
4284 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
4285 mono_decompose_array_access_opts (cfg);
4286
4287 if (cfg->got_var) {
4288 #ifndef MONO_ARCH_GOT_REG
4289 GList *regs;
4290 #endif
4291 int got_reg;
4292
4293 g_assert (cfg->got_var_allocated);
4294
4295 /*
4296 * Allways allocate the GOT var to a register, because keeping it
4297 * in memory will increase the number of live temporaries in some
4298 * code created by inssel.brg, leading to the well known spills+
4299 * branches problem. Testcase: mcs crash in
4300 * System.MonoCustomAttrs:GetCustomAttributes.
4301 */
4302 #ifdef MONO_ARCH_GOT_REG
4303 got_reg = MONO_ARCH_GOT_REG;
4304 #else
4305 regs = mono_arch_get_global_int_regs (cfg);
4306 g_assert (regs);
4307 got_reg = GPOINTER_TO_INT (regs->data);
4308 g_list_free (regs);
4309 #endif
4310 cfg->got_var->opcode = OP_REGVAR;
4311 cfg->got_var->dreg = got_reg;
4312 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
4313 }
4314
4315 /*
4316 * Have to call this again to process variables added since the first call.
4317 */
4318 mono_liveness_handle_exception_clauses (cfg);
4319
4320 if (cfg->globalra) {
4321 MonoBasicBlock *bb;
4322
4323 /* Have to do this before regalloc since it can create vregs */
4324 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4325 mono_arch_lowering_pass (cfg, bb);
4326
4327 mono_global_regalloc (cfg);
4328 }
4329
4330 if ((cfg->opt & MONO_OPT_LINEARS) && !cfg->globalra) {
4331 GList *vars, *regs, *l;
4332
4333 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
4334 cfg->comp_done &= ~MONO_COMP_LIVENESS;
4335 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
4336 mono_analyze_liveness (cfg);
4337
4338 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
4339 regs = mono_arch_get_global_int_regs (cfg);
4340 /* Remove the reg reserved for holding the GOT address */
4341 if (cfg->got_var) {
4342 for (l = regs; l; l = l->next) {
4343 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
4344 regs = g_list_delete_link (regs, l);
4345 break;
4346 }
4347 }
4348 }
4349 mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs);
4350 }
4351 }
4352
4353 //mono_print_code (cfg, "");
4354
4355 //print_dfn (cfg);
4356
4357 /* variables are allocated after decompose, since decompose could create temps */
4358 if (!cfg->globalra && !COMPILE_LLVM (cfg)) {
4359 mono_arch_allocate_vars (cfg);
4360 if (cfg->exception_type)
4361 return cfg;
4362 }
4363
4364 {
4365 MonoBasicBlock *bb;
4366 gboolean need_local_opts;
4367
4368 if (!cfg->globalra && !COMPILE_LLVM (cfg)) {
4369 mono_spill_global_vars (cfg, &need_local_opts);
4370
4371 if (need_local_opts || cfg->compile_aot) {
4372 /* To optimize code created by spill_global_vars */
4373 mono_local_cprop (cfg);
4374 if (cfg->opt & MONO_OPT_DEADCE)
4375 mono_local_deadce (cfg);
4376 }
4377 }
4378
4379 /* Add branches between non-consecutive bblocks */
4380 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4381 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
4382 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
4383 /* we are careful when inverting, since bugs like #59580
4384 * could show up when dealing with NaNs.
4385 */
4386 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
4387 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
4388 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
4389 bb->last_ins->inst_false_bb = tmp;
4390
4391 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
4392 } else {
4393 MonoInst *inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
4394 inst->opcode = OP_BR;
4395 inst->inst_target_bb = bb->last_ins->inst_false_bb;
4396 mono_bblock_add_inst (bb, inst);
4397 }
4398 }
4399 }
4400
4401 if (cfg->verbose_level >= 4 && !cfg->globalra) {
4402 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4403 MonoInst *tree = bb->code;
4404 g_print ("DUMP BLOCK %d:\n", bb->block_num);
4405 if (!tree)
4406 continue;
4407 for (; tree; tree = tree->next) {
4408 mono_print_ins_index (-1, tree);
4409 }
4410 }
4411 }
4412
4413 /* FIXME: */
4414 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4415 bb->max_vreg = cfg->next_vreg;
4416 }
4417 }
4418
4419 if (COMPILE_LLVM (cfg)) {
4420 #ifdef ENABLE_LLVM
4421 char *nm;
4422
4423 /* The IR has to be in SSA form for LLVM */
4424 if (!(cfg->comp_done & MONO_COMP_SSA)) {
4425 cfg->exception_message = g_strdup ("SSA disabled.");
4426 cfg->disable_llvm = TRUE;
4427 }
4428
4429 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
4430 mono_decompose_array_access_opts (cfg);
4431
4432 if (!cfg->disable_llvm)
4433 mono_llvm_emit_method (cfg);
4434 if (cfg->disable_llvm) {
4435 if (cfg->verbose_level >= 1) {
4436 //nm = mono_method_full_name (cfg->method, TRUE);
4437 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
4438 //g_free (nm);
4439 }
4440 InterlockedIncrement (&methods_without_llvm);
4441 mono_destroy_compile (cfg);
4442 try_llvm = FALSE;
4443 goto restart_compile;
4444 }
4445
4446 InterlockedIncrement (&methods_with_llvm);
4447
4448 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
4449 nm = mono_method_full_name (cfg->method, TRUE);
4450 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
4451 nm,
4452 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
4453 g_free (nm);
4454 }
4455 #endif
4456 } else {
4457 mono_codegen (cfg);
4458 }
4459
4460 if (cfg->verbose_level >= 2) {
4461 char *id = mono_method_full_name (cfg->method, FALSE);
4462 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
4463 g_free (id);
4464 }
4465
4466 cfg->jit_info = create_jit_info (cfg, method_to_compile);
4467
4468 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
4469 if (cfg->extend_live_ranges) {
4470 /* Extend live ranges to cover the whole method */
4471 for (i = 0; i < cfg->num_varinfo; ++i)
4472 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
4473 }
4474 #endif
4475
4476 mono_save_xdebug_info (cfg);
4477
4478 mini_gc_create_gc_map (cfg);
4479
4480 mono_save_seq_point_info (cfg);
4481
4482 if (!cfg->compile_aot) {
4483 mono_domain_lock (cfg->domain);
4484 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
4485
4486 if (cfg->method->dynamic)
4487 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
4488 mono_domain_unlock (cfg->domain);
4489 }
4490
4491 /* collect statistics */
4492 mono_perfcounters->jit_methods++;
4493 mono_perfcounters->jit_bytes += header->code_size;
4494 mono_jit_stats.allocated_code_size += cfg->code_len;
4495 code_size_ratio = cfg->code_len;
4496 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
4497 mono_jit_stats.biggest_method_size = code_size_ratio;
4498 g_free (mono_jit_stats.biggest_method);
4499 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4500 }
4501 code_size_ratio = (code_size_ratio * 100) / header->code_size;
4502 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
4503 mono_jit_stats.max_code_size_ratio = code_size_ratio;
4504 g_free (mono_jit_stats.max_ratio_method);
4505 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4506 }
4507 mono_jit_stats.native_code_size += cfg->code_len;
4508
4509 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4510 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4511
4512 return cfg;
4513 }
4514
4515 #else
4516
4517 MonoCompile*
4518 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
4519 {
4520 g_assert_not_reached ();
4521 return NULL;
4522 }
4523
4524 #endif /* DISABLE_JIT */
4525
4526 MonoJitInfo*
4527 mono_domain_lookup_shared_generic (MonoDomain *domain, MonoMethod *method)
4528 {
4529 static gboolean inited = FALSE;
4530 static int lookups = 0;
4531 static int failed_lookups = 0;
4532 MonoJitInfo *ji;
4533
4534 ji = mono_internal_hash_table_lookup (&domain->jit_code_hash, mini_get_shared_method (method));
4535 if (ji && !ji->has_generic_jit_info)
4536 ji = NULL;
4537
4538 if (!inited) {
4539 mono_counters_register ("Shared generic lookups", MONO_COUNTER_INT|MONO_COUNTER_GENERICS, &lookups);
4540 mono_counters_register ("Failed shared generic lookups", MONO_COUNTER_INT|MONO_COUNTER_GENERICS, &failed_lookups);
4541 inited = TRUE;
4542 }
4543
4544 ++lookups;
4545 if (!ji)
4546 ++failed_lookups;
4547
4548 return ji;
4549 }
4550
4551 /*
4552 * LOCKING: Assumes domain->jit_code_hash_lock is held.
4553 */
4554 static MonoJitInfo*
4555 lookup_method_inner (MonoDomain *domain, MonoMethod *method)
4556 {
4557 MonoJitInfo *ji = mono_internal_hash_table_lookup (&domain->jit_code_hash, method);
4558
4559 if (ji)
4560 return ji;
4561
4562 if (!mono_method_is_generic_sharable_impl (method, FALSE))
4563 return NULL;
4564 return mono_domain_lookup_shared_generic (domain, method);
4565 }
4566
4567 static MonoJitInfo*
4568 lookup_method (MonoDomain *domain, MonoMethod *method)
4569 {
4570 MonoJitInfo *info;
4571
4572 mono_loader_lock (); /*FIXME lookup_method_inner acquired it*/
4573 mono_domain_jit_code_hash_lock (domain);
4574 info = lookup_method_inner (domain, method);
4575 mono_domain_jit_code_hash_unlock (domain);
4576 mono_loader_unlock ();
4577
4578 return info;
4579 }
4580
4581 #if ENABLE_JIT_MAP
4582 static FILE* perf_map_file = NULL;
4583
4584 void
4585 mono_enable_jit_map (void)
4586 {
4587 if (!perf_map_file) {
4588 char name [64];
4589 g_snprintf (name, sizeof (name), "/tmp/perf-%d.map", getpid ());
4590 unlink (name);
4591 perf_map_file = fopen (name, "w");
4592 }
4593 }
4594
4595 void
4596 mono_emit_jit_tramp (void *start, int size, const char *desc)
4597 {
4598 if (perf_map_file)
4599 fprintf (perf_map_file, "%llx %x %s\n", (long long unsigned int)(gsize)start, size, desc);
4600 }
4601
4602 void
4603 mono_emit_jit_map (MonoJitInfo *jinfo)
4604 {
4605 if (perf_map_file) {
4606 char *name = mono_method_full_name (jinfo->method, TRUE);
4607 mono_emit_jit_tramp (jinfo->code_start, jinfo->code_size, name);
4608 g_free (name);
4609 }
4610 }
4611 #endif
4612
4613 static gpointer
4614 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoException **jit_ex)
4615 {
4616 MonoCompile *cfg;
4617 gpointer code = NULL;
4618 MonoJitInfo *jinfo, *info;
4619 MonoVTable *vtable;
4620 MonoException *ex = NULL;
4621 guint32 prof_options;
4622
4623 #ifdef MONO_USE_AOT_COMPILER
4624 if (opt & MONO_OPT_AOT) {
4625 MonoDomain *domain = mono_domain_get ();
4626
4627 mono_class_init (method->klass);
4628
4629 if ((code = mono_aot_get_method (domain, method))) {
4630 vtable = mono_class_vtable (domain, method->klass);
4631 g_assert (vtable);
4632 mono_runtime_class_init (vtable);
4633
4634 return code;
4635 }
4636 }
4637 #endif
4638
4639 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4640 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4641 MonoMethod *nm;
4642 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
4643
4644 if (!piinfo->addr) {
4645 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
4646 piinfo->addr = mono_lookup_internal_call (method);
4647 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
4648 #ifdef HOST_WIN32
4649 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);
4650 #else
4651 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);
4652 #endif
4653 else
4654 mono_lookup_pinvoke_call (method, NULL, NULL);
4655 }
4656 nm = mono_marshal_get_native_wrapper (method, check_for_pending_exc, FALSE);
4657 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4658
4659 //if (mono_debug_format != MONO_DEBUG_FORMAT_NONE)
4660 //mono_debug_add_wrapper (method, nm);
4661 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4662 const char *name = method->name;
4663 MonoMethod *nm;
4664
4665 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4666 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4667 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("mono_delegate_ctor");
4668 g_assert (mi);
4669 /*
4670 * We need to make sure this wrapper
4671 * is compiled because it might end up
4672 * in an (M)RGCTX if generic sharing
4673 * is enabled, and would be called
4674 * indirectly. If it were a
4675 * trampoline we'd try to patch that
4676 * indirect call, which is not
4677 * possible.
4678 */
4679 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4680 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4681 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
4682 return mono_create_delegate_trampoline (method->klass);
4683 #else
4684 nm = mono_marshal_get_delegate_invoke (method, NULL);
4685 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4686 #endif
4687 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4688 nm = mono_marshal_get_delegate_begin_invoke (method);
4689 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4690 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4691 nm = mono_marshal_get_delegate_end_invoke (method);
4692 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4693 }
4694 }
4695 return NULL;
4696 }
4697
4698 if (mono_aot_only) {
4699 char *fullname = mono_method_full_name (method, TRUE);
4700 char *msg = g_strdup_printf ("Attempting to JIT compile method '%s' while running with --aot-only.\n", fullname);
4701
4702 *jit_ex = mono_get_exception_execution_engine (msg);
4703 g_free (fullname);
4704 g_free (msg);
4705
4706 return NULL;
4707 }
4708
4709 cfg = mini_method_compile (method, opt, target_domain, TRUE, FALSE, 0);
4710
4711 switch (cfg->exception_type) {
4712 case MONO_EXCEPTION_NONE:
4713 break;
4714 case MONO_EXCEPTION_TYPE_LOAD:
4715 case MONO_EXCEPTION_MISSING_FIELD:
4716 case MONO_EXCEPTION_MISSING_METHOD:
4717 case MONO_EXCEPTION_FILE_NOT_FOUND:
4718 case MONO_EXCEPTION_BAD_IMAGE: {
4719 /* Throw a type load exception if needed */
4720 MonoLoaderError *error = mono_loader_get_last_error ();
4721
4722 if (error) {
4723 ex = mono_loader_error_prepare_exception (error);
4724 } else {
4725 if (cfg->exception_ptr) {
4726 ex = mono_class_get_exception_for_failure (cfg->exception_ptr);
4727 } else {
4728 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4729 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4730 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4731 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4732 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4733 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4734 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4735 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FileNotFoundException", cfg->exception_message);
4736 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4737 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4738 else
4739 g_assert_not_reached ();
4740 }
4741 }
4742 break;
4743 }
4744 case MONO_EXCEPTION_INVALID_PROGRAM:
4745 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
4746 break;
4747 case MONO_EXCEPTION_UNVERIFIABLE_IL:
4748 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.Security", "VerificationException", cfg->exception_message);
4749 break;
4750 case MONO_EXCEPTION_METHOD_ACCESS:
4751 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MethodAccessException", cfg->exception_message);
4752 break;
4753 case MONO_EXCEPTION_FIELD_ACCESS:
4754 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FieldAccessException", cfg->exception_message);
4755 break;
4756 /* this can only be set if the security manager is active */
4757 case MONO_EXCEPTION_SECURITY_LINKDEMAND: {
4758 MonoSecurityManager* secman = mono_security_manager_get_methods ();
4759 MonoObject *exc = NULL;
4760 gpointer args [2];
4761
4762 args [0] = &cfg->exception_data;
4763 args [1] = &method;
4764 mono_runtime_invoke (secman->linkdemandsecurityexception, NULL, args, &exc);
4765
4766 ex = (MonoException*)exc;
4767 break;
4768 }
4769 case MONO_EXCEPTION_OBJECT_SUPPLIED: {
4770 MonoException *exp = cfg->exception_ptr;
4771 MONO_GC_UNREGISTER_ROOT (cfg->exception_ptr);
4772
4773 ex = exp;
4774 break;
4775 }
4776 default:
4777 g_assert_not_reached ();
4778 }
4779
4780 if (ex) {
4781 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
4782 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
4783
4784 mono_destroy_compile (cfg);
4785 *jit_ex = ex;
4786
4787 return NULL;
4788 }
4789
4790 mono_loader_lock (); /*FIXME lookup_method_inner requires the loader lock*/
4791 mono_domain_lock (target_domain);
4792
4793 /* Check if some other thread already did the job. In this case, we can
4794 discard the code this thread generated. */
4795
4796 mono_domain_jit_code_hash_lock (target_domain);
4797
4798 info = lookup_method_inner (target_domain, method);
4799 if (info) {
4800 /* We can't use a domain specific method in another domain */
4801 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4802 code = info->code_start;
4803 // printf("Discarding code for method %s\n", method->name);
4804 }
4805 }
4806
4807 if (code == NULL) {
4808 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->method, cfg->jit_info);
4809 mono_domain_jit_code_hash_unlock (target_domain);
4810 code = cfg->native_code;
4811
4812 if (cfg->generic_sharing_context && mono_method_is_generic_sharable_impl (method, FALSE))
4813 mono_stats.generics_shared_methods++;
4814 } else {
4815 mono_domain_jit_code_hash_unlock (target_domain);
4816 }
4817
4818 jinfo = cfg->jit_info;
4819
4820 prof_options = cfg->prof_options;
4821
4822 mono_destroy_compile (cfg);
4823
4824 #ifndef DISABLE_JIT
4825 if (domain_jit_info (target_domain)->jump_target_hash) {
4826 MonoJumpInfo patch_info;
4827 GSList *list, *tmp;
4828 list = g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4829 if (list) {
4830 patch_info.next = NULL;
4831 patch_info.ip.i = 0;
4832 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4833 patch_info.data.method = method;
4834 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4835 }
4836 for (tmp = list; tmp; tmp = tmp->next)
4837 mono_arch_patch_code (NULL, target_domain, tmp->data, &patch_info, TRUE);
4838 g_slist_free (list);
4839 }
4840
4841 mono_emit_jit_map (jinfo);
4842 #endif
4843 mono_domain_unlock (target_domain);
4844 mono_loader_unlock ();
4845
4846 vtable = mono_class_vtable (target_domain, method->klass);
4847 if (!vtable) {
4848 ex = mono_class_get_exception_for_failure (method->klass);
4849 g_assert (ex);
4850 *jit_ex = ex;
4851 return NULL;
4852 }
4853
4854 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
4855 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4856 if (mono_marshal_method_from_wrapper (method)) {
4857 /* Native func wrappers have no method */
4858 /* The profiler doesn't know about wrappers, so pass the original icall method */
4859 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
4860 }
4861 } else {
4862 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4863 }
4864 }
4865
4866 ex = mono_runtime_class_init_full (vtable, FALSE);
4867 if (ex) {
4868 *jit_ex = ex;
4869 return NULL;
4870 }
4871 return code;
4872 }
4873
4874 static gpointer
4875 mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt, MonoException **ex)
4876 {
4877 MonoDomain *target_domain, *domain = mono_domain_get ();
4878 MonoJitInfo *info;
4879 gpointer code, p;
4880 MonoJitICallInfo *callinfo = NULL;
4881
4882 /*
4883 * ICALL wrappers are handled specially, since there is only one copy of them
4884 * shared by all appdomains.
4885 */
4886 if ((method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) && (strstr (method->name, "__icall_wrapper_") == method->name)) {
4887 const char *icall_name;
4888
4889 icall_name = method->name + strlen ("__icall_wrapper_");
4890 g_assert (icall_name);
4891 callinfo = mono_find_jit_icall_by_name (icall_name);
4892 g_assert (callinfo);
4893
4894 /* Must be domain neutral since there is only one copy */
4895 opt |= MONO_OPT_SHARED;
4896 }
4897
4898 if (opt & MONO_OPT_SHARED)
4899 target_domain = mono_get_root_domain ();
4900 else
4901 target_domain = domain;
4902
4903 info = lookup_method (target_domain, method);
4904 if (info) {
4905 /* We can't use a domain specific method in another domain */
4906 if (! ((domain != target_domain) && !info->domain_neutral)) {
4907 MonoVTable *vtable;
4908
4909 mono_jit_stats.methods_lookups++;
4910 vtable = mono_class_vtable (domain, method->klass);
4911 g_assert (vtable);
4912 mono_runtime_class_init (vtable);
4913 return mono_create_ftnptr (target_domain, info->code_start);
4914 }
4915 }
4916
4917 code = mono_jit_compile_method_inner (method, target_domain, opt, ex);
4918 if (!code)
4919 return NULL;
4920
4921 p = mono_create_ftnptr (target_domain, code);
4922
4923 if (callinfo) {
4924 mono_jit_lock ();
4925 if (!callinfo->wrapper) {
4926 callinfo->wrapper = p;
4927 mono_register_jit_icall_wrapper (callinfo, p);
4928 mono_debug_add_icall_wrapper (method, callinfo);
4929 }
4930 mono_jit_unlock ();
4931 }
4932
4933 return p;
4934 }
4935
4936 gpointer
4937 mono_jit_compile_method (MonoMethod *method)
4938 {
4939 MonoException *ex = NULL;
4940 gpointer code;
4941
4942 code = mono_jit_compile_method_with_opt (method, default_opt, &ex);
4943 if (!code) {
4944 g_assert (ex);
4945 mono_raise_exception (ex);
4946 }
4947
4948 return code;
4949 }
4950
4951 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
4952 static void
4953 invalidated_delegate_trampoline (char *desc)
4954 {
4955 g_error ("Unmanaged code called delegate of type %s which was already garbage collected.\n"
4956 "See http://www.go-mono.com/delegate.html for an explanation and ways to fix this.",
4957 desc);
4958 }
4959 #endif
4960
4961 /*
4962 * mono_jit_free_method:
4963 *
4964 * Free all memory allocated by the JIT for METHOD.
4965 */
4966 static void
4967 mono_jit_free_method (MonoDomain *domain, MonoMethod *method)
4968 {
4969 MonoJitDynamicMethodInfo *ji;
4970 gboolean destroy = TRUE;
4971
4972 g_assert (method->dynamic);
4973
4974 mono_domain_lock (domain);
4975 ji = mono_dynamic_code_hash_lookup (domain, method);
4976 mono_domain_unlock (domain);
4977
4978 if (!ji)
4979 return;
4980 mono_domain_lock (domain);
4981 g_hash_table_remove (domain_jit_info (domain)->dynamic_code_hash, method);
4982 mono_internal_hash_table_remove (&domain->jit_code_hash, method);
4983 g_hash_table_remove (domain_jit_info (domain)->jump_trampoline_hash, method);
4984 g_hash_table_remove (domain_jit_info (domain)->runtime_invoke_hash, method);
4985 mono_domain_unlock (domain);
4986
4987 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
4988 if (debug_options.keep_delegates && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
4989 /*
4990 * Instead of freeing the code, change it to call an error routine
4991 * so people can fix their code.
4992 */
4993 char *type = mono_type_full_name (&method->klass->byval_arg);
4994 char *type_and_method = g_strdup_printf ("%s.%s", type, method->name);
4995
4996 g_free (type);
4997 mono_arch_invalidate_method (ji->ji, invalidated_delegate_trampoline, type_and_method);
4998 destroy = FALSE;
4999 }
5000 #endif
5001
5002 /*
5003 * This needs to be done before freeing code_mp, since the code address is the
5004 * key in the table, so if we free the code_mp first, another thread can grab the
5005 * same code address and replace our entry in the table.
5006 */
5007 mono_jit_info_table_remove (domain, ji->ji);
5008
5009 if (destroy)
5010 mono_code_manager_destroy (ji->code_mp);
5011 g_free (ji);
5012 }
5013
5014 gpointer
5015 mono_jit_find_compiled_method_with_jit_info (MonoDomain *domain, MonoMethod *method, MonoJitInfo **ji)
5016 {
5017 MonoDomain *target_domain;
5018 MonoJitInfo *info;
5019
5020 if (default_opt & MONO_OPT_SHARED)
5021 target_domain = mono_get_root_domain ();
5022 else
5023 target_domain = domain;
5024
5025 info = lookup_method (target_domain, method);
5026 if (info) {
5027 /* We can't use a domain specific method in another domain */
5028 if (! ((domain != target_domain) && !info->domain_neutral)) {
5029 mono_jit_stats.methods_lookups++;
5030 if (ji)
5031 *ji = info;
5032 return info->code_start;
5033 }
5034 }
5035
5036 if (ji)
5037 *ji = NULL;
5038 return NULL;
5039 }
5040
5041 gpointer
5042 mono_jit_find_compiled_method (MonoDomain *domain, MonoMethod *method)
5043 {
5044 return mono_jit_find_compiled_method_with_jit_info (domain, method, NULL);
5045 }
5046
5047 typedef struct {
5048 MonoMethod *method;
5049 gpointer compiled_method;
5050 gpointer runtime_invoke;
5051 MonoVTable *vtable;
5052 MonoDynCallInfo *dyn_call_info;
5053 MonoClass *ret_box_class;
5054 } RuntimeInvokeInfo;
5055
5056 /**
5057 * mono_jit_runtime_invoke:
5058 * @method: the method to invoke
5059 * @obj: this pointer
5060 * @params: array of parameter values.
5061 * @exc: used to catch exceptions objects
5062 */
5063 static MonoObject*
5064 mono_jit_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
5065 {
5066 MonoMethod *invoke;
5067 MonoObject *(*runtime_invoke) (MonoObject *this, void **params, MonoObject **exc, void* compiled_method);
5068 MonoDomain *domain = mono_domain_get ();
5069 MonoJitDomainInfo *domain_info;
5070 RuntimeInvokeInfo *info, *info2;
5071
5072 if (obj == NULL && !(method->flags & METHOD_ATTRIBUTE_STATIC) && !method->string_ctor && (method->wrapper_type == 0)) {
5073 g_warning ("Ignoring invocation of an instance method on a NULL instance.\n");
5074 return NULL;
5075 }
5076
5077 domain_info = domain_jit_info (domain);
5078
5079 mono_domain_lock (domain);
5080 info = g_hash_table_lookup (domain_info->runtime_invoke_hash, method);
5081 mono_domain_unlock (domain);
5082
5083 if (!info) {
5084 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
5085 /*
5086 * This might be redundant since mono_class_vtable () already does this,
5087 * but keep it just in case for moonlight.
5088 */
5089 mono_class_setup_vtable (method->klass);
5090 if (method->klass->exception_type != MONO_EXCEPTION_NONE) {
5091 if (exc)
5092 *exc = (MonoObject*)mono_class_get_exception_for_failure (method->klass);
5093 else
5094 mono_raise_exception (mono_class_get_exception_for_failure (method->klass));
5095 return NULL;
5096 }
5097 }
5098
5099 info = g_new0 (RuntimeInvokeInfo, 1);
5100
5101 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
5102 info->vtable = mono_class_vtable_full (domain, method->klass, TRUE);
5103 g_assert (info->vtable);
5104
5105 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
5106 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
5107 /*
5108 * Array Get/Set/Address methods. The JIT implements them using inline code
5109 * inside the runtime invoke wrappers, so no need to compile them.
5110 */
5111 info->compiled_method = NULL;
5112 } else {
5113 MonoException *jit_ex = NULL;
5114
5115 info->compiled_method = mono_jit_compile_method_with_opt (method, default_opt, &jit_ex);
5116 if (!info->compiled_method) {
5117 g_free (info);
5118 g_assert (jit_ex);
5119 if (exc) {
5120 *exc = (MonoObject*)jit_ex;
5121 return NULL;
5122 } else {
5123 mono_raise_exception (jit_ex);
5124 }
5125 }
5126
5127 if (mono_method_needs_static_rgctx_invoke (method, FALSE))
5128 info->compiled_method = mono_create_static_rgctx_trampoline (method, info->compiled_method);
5129 }
5130
5131 /*
5132 * We want to avoid AOTing 1000s of runtime-invoke wrappers when running
5133 * in full-aot mode, so we use a slower, but more generic wrapper if
5134 * possible, built on top of the OP_DYN_CALL opcode provided by the JIT.
5135 */
5136 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
5137 if (mono_aot_only || debug_options.dyn_runtime_invoke) {
5138 MonoMethodSignature *sig = mono_method_signature (method);
5139 gboolean supported = TRUE;
5140 int i;
5141
5142 if (method->string_ctor)
5143 sig = mono_marshal_get_string_ctor_signature (method);
5144
5145 for (i = 0; i < sig->param_count; ++i) {
5146 MonoType *t = sig->params [i];
5147
5148 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
5149 supported = FALSE;
5150 }
5151
5152 if (method->klass->contextbound || !info->compiled_method)
5153 supported = FALSE;
5154
5155 if (supported)
5156 info->dyn_call_info = mono_arch_dyn_call_prepare (sig);
5157
5158 if (info->dyn_call_info) {
5159 switch (sig->ret->type) {
5160 case MONO_TYPE_VOID:
5161 break;
5162 case MONO_TYPE_I1:
5163 case MONO_TYPE_U1:
5164 case MONO_TYPE_I2:
5165 case MONO_TYPE_U2:
5166 case MONO_TYPE_I4:
5167 case MONO_TYPE_U4:
5168 case MONO_TYPE_I:
5169 case MONO_TYPE_U:
5170 case MONO_TYPE_I8:
5171 case MONO_TYPE_U8:
5172 case MONO_TYPE_BOOLEAN:
5173 case MONO_TYPE_CHAR:
5174 case MONO_TYPE_R4:
5175 case MONO_TYPE_R8:
5176 info->ret_box_class = mono_class_from_mono_type (sig->ret);
5177 break;
5178 case MONO_TYPE_PTR:
5179 info->ret_box_class = mono_defaults.int_class;
5180 break;
5181 case MONO_TYPE_STRING:
5182 case MONO_TYPE_CLASS:
5183 case MONO_TYPE_ARRAY:
5184 case MONO_TYPE_SZARRAY:
5185 case MONO_TYPE_OBJECT:
5186 break;
5187 case MONO_TYPE_GENERICINST:
5188 if (!MONO_TYPE_IS_REFERENCE (sig->ret))
5189 info->ret_box_class = mono_class_from_mono_type (sig->ret);
5190 break;
5191 case MONO_TYPE_VALUETYPE:
5192 info->ret_box_class = mono_class_from_mono_type (sig->ret);
5193 break;
5194 default:
5195 g_assert_not_reached ();
5196 break;
5197 }
5198 }
5199 }
5200 #endif
5201
5202 if (!info->dyn_call_info)
5203 info->runtime_invoke = mono_jit_compile_method (invoke);
5204
5205 mono_domain_lock (domain);
5206 info2 = g_hash_table_lookup (domain_info->runtime_invoke_hash, method);
5207 if (info2) {
5208 g_free (info);
5209 info = info2;
5210 } else {
5211 g_hash_table_insert (domain_info->runtime_invoke_hash, method, info);
5212 }
5213 mono_domain_unlock (domain);
5214 }
5215
5216 runtime_invoke = info->runtime_invoke;
5217
5218 /*
5219 * We need this here because mono_marshal_get_runtime_invoke can place
5220 * the helper method in System.Object and not the target class.
5221 */
5222 if (exc) {
5223 *exc = (MonoObject*)mono_runtime_class_init_full (info->vtable, FALSE);
5224 if (*exc)
5225 return NULL;
5226 } else {
5227 mono_runtime_class_init (info->vtable);
5228 }
5229
5230 /* The wrappers expect this to be initialized to NULL */
5231 if (exc)
5232 *exc = NULL;
5233
5234 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
5235 if (info->dyn_call_info) {
5236 MonoMethodSignature *sig = mono_method_signature (method);
5237 gpointer *args;
5238 static RuntimeInvokeDynamicFunction dyn_runtime_invoke;
5239 int i, pindex;
5240 guint8 buf [128];
5241 guint8 retval [128];
5242
5243 if (!dyn_runtime_invoke) {
5244 invoke = mono_marshal_get_runtime_invoke_dynamic ();
5245 dyn_runtime_invoke = mono_jit_compile_method (invoke);
5246 }
5247
5248 /* Convert the arguments to the format expected by start_dyn_call () */
5249 args = g_alloca ((sig->param_count + sig->hasthis) * sizeof (gpointer));
5250 pindex = 0;
5251 if (sig->hasthis)
5252 args [pindex ++] = &obj;
5253 for (i = 0; i < sig->param_count; ++i) {
5254 MonoType *t = sig->params [i];
5255
5256 if (t->byref) {
5257 args [pindex ++] = &params [i];
5258 } else if (MONO_TYPE_IS_REFERENCE (t) || t->type == MONO_TYPE_PTR) {
5259 args [pindex ++] = &params [i];
5260 } else {
5261 args [pindex ++] = params [i];
5262 }
5263 }
5264
5265 //printf ("M: %s\n", mono_method_full_name (method, TRUE));
5266
5267 mono_arch_start_dyn_call (info->dyn_call_info, (gpointer**)args, retval, buf, sizeof (buf));
5268
5269 dyn_runtime_invoke (buf, exc, info->compiled_method);
5270
5271 mono_arch_finish_dyn_call (info->dyn_call_info, buf);
5272
5273 if (info->ret_box_class)
5274 return mono_value_box (domain, info->ret_box_class, retval);
5275 else
5276 return *(MonoObject**)retval;
5277 }
5278 #endif
5279
5280 return runtime_invoke (obj, params, exc, info->compiled_method);
5281 }
5282
5283 void
5284 SIG_HANDLER_SIGNATURE (mono_sigfpe_signal_handler)
5285 {
5286 MonoException *exc = NULL;
5287 MonoJitInfo *ji;
5288 #if !(defined(MONO_ARCH_USE_SIGACTION) || defined(HOST_WIN32))
5289 void *info = NULL;
5290 #endif
5291 GET_CONTEXT;
5292
5293 ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context (ctx));
5294
5295 #if defined(MONO_ARCH_HAVE_IS_INT_OVERFLOW)
5296 if (mono_arch_is_int_overflow (ctx, info))
5297 exc = mono_get_exception_arithmetic ();
5298 else
5299 exc = mono_get_exception_divide_by_zero ();
5300 #else
5301 exc = mono_get_exception_divide_by_zero ();
5302 #endif
5303
5304 if (!ji) {
5305 if (mono_chain_signal (SIG_HANDLER_PARAMS))
5306 return;
5307
5308 mono_handle_native_sigsegv (SIGSEGV, ctx);
5309 }
5310
5311 mono_arch_handle_exception (ctx, exc, FALSE);
5312 }
5313
5314 void
5315 SIG_HANDLER_SIGNATURE (mono_sigill_signal_handler)
5316 {
5317 MonoException *exc;
5318 GET_CONTEXT;
5319
5320 exc = mono_get_exception_execution_engine ("SIGILL");
5321
5322 mono_arch_handle_exception (ctx, exc, FALSE);
5323 }
5324
5325 #if defined(MONO_ARCH_USE_SIGACTION) || defined(HOST_WIN32)
5326 #define HAVE_SIG_INFO
5327 #endif
5328
5329 void
5330 SIG_HANDLER_SIGNATURE (mono_sigsegv_signal_handler)
5331 {
5332 MonoJitInfo *ji;
5333 MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id);
5334
5335 GET_CONTEXT;
5336
5337 #if defined(MONO_ARCH_SOFT_DEBUG_SUPPORTED) && defined(HAVE_SIG_INFO)
5338 if (mono_arch_is_single_step_event (info, ctx)) {
5339 mono_debugger_agent_single_step_event (ctx);
5340 return;
5341 } else if (mono_arch_is_breakpoint_event (info, ctx)) {
5342 mono_debugger_agent_breakpoint_hit (ctx);
5343 return;
5344 }
5345 #endif
5346
5347 #if !defined(HOST_WIN32) && defined(HAVE_SIG_INFO)
5348 if (mono_aot_is_pagefault (info->si_addr)) {
5349 mono_aot_handle_pagefault (info->si_addr);
5350 return;
5351 }
5352 #endif
5353
5354 /* The thread might no be registered with the runtime */
5355 if (!mono_domain_get () || !jit_tls) {
5356 if (mono_chain_signal (SIG_HANDLER_PARAMS))
5357 return;
5358 mono_handle_native_sigsegv (SIGSEGV, ctx);
5359 }
5360
5361 ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context (ctx));
5362
5363 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
5364 if (mono_handle_soft_stack_ovf (jit_tls, ji, ctx, (guint8*)info->si_addr))
5365 return;
5366
5367 /* The hard-guard page has been hit: there is not much we can do anymore
5368 * Print a hopefully clear message and abort.
5369 */
5370 if (jit_tls->stack_size &&
5371 ABS ((guint8*)info->si_addr - ((guint8*)jit_tls->end_of_stack - jit_tls->stack_size)) < 32768) {
5372 const char *method;
5373 /* we don't do much now, but we can warn the user with a useful message */
5374 fprintf (stderr, "Stack overflow: IP: %p, fault addr: %p\n", mono_arch_ip_from_context (ctx), (gpointer)info->si_addr);
5375 if (ji && ji->method)
5376 method = mono_method_full_name (ji->method, TRUE);
5377 else
5378 method = "Unmanaged";
5379 fprintf (stderr, "At %s\n", method);
5380 _exit (1);
5381 } else {
5382 /* The original handler might not like that it is executed on an altstack... */
5383 if (!ji && mono_chain_signal (SIG_HANDLER_PARAMS))
5384 return;
5385
5386 mono_arch_handle_altstack_exception (ctx, info->si_addr, FALSE);
5387 }
5388 #else
5389
5390 if (!ji) {
5391 if (mono_chain_signal (SIG_HANDLER_PARAMS))
5392 return;
5393
5394 mono_handle_native_sigsegv (SIGSEGV, ctx);
5395 }
5396
5397 mono_arch_handle_exception (ctx, NULL, FALSE);
5398 #endif
5399 }
5400
5401 void
5402 SIG_HANDLER_SIGNATURE (mono_sigint_signal_handler)
5403 {
5404 MonoException *exc;
5405 GET_CONTEXT;
5406
5407 exc = mono_get_exception_execution_engine ("Interrupted (SIGINT).");
5408
5409 mono_arch_handle_exception (ctx, exc, FALSE);
5410 }
5411
5412 /* mono_jit_create_remoting_trampoline:
5413 * @method: pointer to the method info
5414 *
5415 * Creates a trampoline which calls the remoting functions. This
5416 * is used in the vtable of transparent proxies.
5417 *
5418 * Returns: a pointer to the newly created code
5419 */
5420 static gpointer
5421 mono_jit_create_remoting_trampoline (MonoDomain *domain, MonoMethod *method, MonoRemotingTarget target)
5422 {
5423 MonoMethod *nm;
5424 guint8 *addr = NULL;
5425
5426 if ((method->flags & METHOD_ATTRIBUTE_VIRTUAL) && mono_method_signature (method)->generic_param_count) {
5427 return mono_create_specific_trampoline (method, MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING,
5428 domain, NULL);
5429 }
5430
5431 if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
5432 (mono_method_signature (method)->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class))) {
5433 nm = mono_marshal_get_remoting_invoke_for_target (method, target);
5434 addr = mono_compile_method (nm);
5435 } else {
5436 addr = mono_compile_method (method);
5437 }
5438 return mono_get_addr_from_ftnptr (addr);
5439 }
5440
5441 static gpointer *vtable_trampolines;
5442 static int vtable_trampolines_size;
5443
5444 gpointer
5445 mini_get_vtable_trampoline (int slot_index)
5446 {
5447 if (!mono_use_llvm) {
5448 /* Use only one trampoline */
5449 if (slot_index < 0) {
5450 static gpointer tramp = NULL;
5451
5452 if (!tramp)
5453 tramp = mono_create_specific_trampoline (MONO_FAKE_IMT_METHOD, MONO_TRAMPOLINE_JIT, mono_get_root_domain (), NULL);
5454 return tramp;
5455 } else {
5456 static gpointer tramp = NULL;
5457
5458 if (!tramp)
5459 tramp = mono_create_specific_trampoline (MONO_FAKE_VTABLE_METHOD, MONO_TRAMPOLINE_JIT, mono_get_root_domain (), NULL);
5460 return tramp;
5461 }
5462 } else {
5463 int index = slot_index + MONO_IMT_SIZE;
5464
5465 /* For LLVM, use one trampoline per vtable slot index */
5466 g_assert (slot_index >= - MONO_IMT_SIZE);
5467 if (!vtable_trampolines || slot_index + MONO_IMT_SIZE >= vtable_trampolines_size) {
5468 mono_jit_lock ();
5469 if (!vtable_trampolines || index >= vtable_trampolines_size) {
5470 int new_size;
5471 gpointer new_table;
5472
5473 new_size = vtable_trampolines_size ? vtable_trampolines_size * 2 : 128;
5474 while (new_size <= index)
5475 new_size *= 2;
5476 new_table = g_new0 (gpointer, new_size);
5477
5478 if (vtable_trampolines)
5479 memcpy (new_table, vtable_trampolines, vtable_trampolines_size * sizeof (gpointer));
5480 mono_memory_barrier ();
5481 vtable_trampolines = new_table;
5482 vtable_trampolines_size = new_size;
5483 }
5484 mono_jit_unlock ();
5485 }
5486
5487 #ifdef MONO_ARCH_LLVM_SUPPORTED
5488 if (!vtable_trampolines [index])
5489 vtable_trampolines [index] = mono_create_specific_trampoline (GUINT_TO_POINTER (slot_index), MONO_TRAMPOLINE_LLVM_VCALL, mono_get_root_domain (), NULL);
5490 return vtable_trampolines [index];
5491 #else
5492 g_assert_not_reached ();
5493 #endif
5494 }
5495 }
5496
5497 static gpointer
5498 mini_get_imt_trampoline (int slot_index)
5499 {
5500 return mini_get_vtable_trampoline (slot_index - MONO_IMT_SIZE);
5501 }
5502
5503 static void
5504 mini_parse_debug_options (void)
5505 {
5506 char *options = getenv ("MONO_DEBUG");
5507 gchar **args, **ptr;
5508
5509 if (!options)
5510 return;
5511
5512 args = g_strsplit (options, ",", -1);
5513
5514 for (ptr = args; ptr && *ptr; ptr++) {
5515 const char *arg = *ptr;
5516
5517 if (!strcmp (arg, "handle-sigint"))
5518 debug_options.handle_sigint = TRUE;
5519 else if (!strcmp (arg, "keep-delegates"))
5520 debug_options.keep_delegates = TRUE;
5521 else if (!strcmp (arg, "collect-pagefault-stats"))
5522 debug_options.collect_pagefault_stats = TRUE;
5523 else if (!strcmp (arg, "break-on-unverified"))
5524 debug_options.break_on_unverified = TRUE;
5525 else if (!strcmp (arg, "no-gdb-backtrace"))
5526 debug_options.no_gdb_backtrace = TRUE;
5527 else if (!strcmp (arg, "suspend-on-sigsegv"))
5528 debug_options.suspend_on_sigsegv = TRUE;
5529 else if (!strcmp (arg, "dont-free-domains"))
5530 mono_dont_free_domains = TRUE;
5531 else if (!strcmp (arg, "dyn-runtime-invoke"))
5532 debug_options.dyn_runtime_invoke = TRUE;
5533 else if (!strcmp (arg, "gdb"))
5534 debug_options.gdb = TRUE;
5535 else if (!strcmp (arg, "explicit-null-checks"))
5536 debug_options.explicit_null_checks = TRUE;
5537 else if (!strcmp (arg, "gen-seq-points"))
5538 debug_options.gen_seq_points = TRUE;
5539 else if (!strcmp (arg, "init-stacks"))
5540 debug_options.init_stacks = TRUE;
5541 else {
5542 fprintf (stderr, "Invalid option for the MONO_DEBUG env variable: %s\n", arg);
5543 fprintf (stderr, "Available options: 'handle-sigint', 'keep-delegates', 'collect-pagefault-stats', 'break-on-unverified', 'no-gdb-backtrace', 'dont-free-domains', 'suspend-on-sigsegv', 'dyn-runtime-invoke', 'gdb', 'explicit-null-checks', 'init-stacks'\n");
5544 exit (1);
5545 }
5546 }
5547
5548 g_strfreev (args);
5549 }
5550
5551 MonoDebugOptions *
5552 mini_get_debug_options (void)
5553 {
5554 return &debug_options;
5555 }
5556
5557 static gpointer
5558 mini_create_ftnptr (MonoDomain *domain, gpointer addr)
5559 {
5560 #ifdef __ia64__
5561 gpointer *desc;
5562
5563 desc = mono_domain_code_reserve (domain, 2 * sizeof (gpointer));
5564
5565 desc [0] = addr;
5566 desc [1] = NULL;
5567
5568 return desc;
5569 #elif defined(__ppc64__) || defined(__powerpc64__)
5570 gpointer *desc;
5571
5572 desc = mono_domain_alloc0 (domain, 3 * sizeof (gpointer));
5573
5574 desc [0] = addr;
5575 desc [1] = NULL;
5576 desc [2] = NULL;
5577
5578 return desc;
5579 #else
5580 return addr;
5581 #endif
5582 }
5583
5584 static gpointer
5585 mini_get_addr_from_ftnptr (gpointer descr)
5586 {
5587 #if defined(__ia64__) || defined(__ppc64__) || defined(__powerpc64__)
5588 return *(gpointer*)descr;
5589 #else
5590 return descr;
5591 #endif
5592 }
5593
5594 static void runtime_invoke_info_free (gpointer value);
5595
5596 static void
5597 mini_create_jit_domain_info (MonoDomain *domain)
5598 {
5599 MonoJitDomainInfo *info = g_new0 (MonoJitDomainInfo, 1);
5600
5601 info->class_init_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5602 info->jump_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5603 info->jit_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5604 info->delegate_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5605 info->llvm_vcall_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5606 info->runtime_invoke_hash = g_hash_table_new_full (mono_aligned_addr_hash, NULL, NULL, runtime_invoke_info_free);
5607 info->seq_points = g_hash_table_new_full (mono_aligned_addr_hash, NULL, NULL, g_free);
5608 info->arch_seq_points = g_hash_table_new (mono_aligned_addr_hash, NULL);
5609
5610 domain->runtime_info = info;
5611 }
5612
5613 static void
5614 delete_jump_list (gpointer key, gpointer value, gpointer user_data)
5615 {
5616 g_slist_free (value);
5617 }
5618
5619 static void
5620 dynamic_method_info_free (gpointer key, gpointer value, gpointer user_data)
5621 {
5622 MonoJitDynamicMethodInfo *di = value;
5623 mono_code_manager_destroy (di->code_mp);
5624 g_free (di);
5625 }
5626
5627 static void
5628 runtime_invoke_info_free (gpointer value)
5629 {
5630 RuntimeInvokeInfo *info = (RuntimeInvokeInfo*)value;
5631
5632 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
5633 if (info->dyn_call_info)
5634 mono_arch_dyn_call_free (info->dyn_call_info);
5635 #endif
5636 g_free (info);
5637 }
5638
5639 static void
5640 mini_free_jit_domain_info (MonoDomain *domain)
5641 {
5642 MonoJitDomainInfo *info = domain_jit_info (domain);
5643
5644 if (info->jump_target_hash) {
5645 g_hash_table_foreach (info->jump_target_hash, delete_jump_list, NULL);
5646 g_hash_table_destroy (info->jump_target_hash);
5647 }
5648 if (info->jump_target_got_slot_hash) {
5649 g_hash_table_foreach (info->jump_target_got_slot_hash, delete_jump_list, NULL);
5650 g_hash_table_destroy (info->jump_target_got_slot_hash);
5651 }
5652 if (info->dynamic_code_hash) {
5653 g_hash_table_foreach (info->dynamic_code_hash, dynamic_method_info_free, NULL);
5654 g_hash_table_destroy (info->dynamic_code_hash);
5655 }
5656 if (info->method_code_hash)
5657 g_hash_table_destroy (info->method_code_hash);
5658 g_hash_table_destroy (info->class_init_trampoline_hash);
5659 g_hash_table_destroy (info->jump_trampoline_hash);
5660 g_hash_table_destroy (info->jit_trampoline_hash);
5661 g_hash_table_destroy (info->delegate_trampoline_hash);
5662 if (info->static_rgctx_trampoline_hash)
5663 g_hash_table_destroy (info->static_rgctx_trampoline_hash);
5664 g_hash_table_destroy (info->llvm_vcall_trampoline_hash);
5665 g_hash_table_destroy (info->runtime_invoke_hash);
5666 g_hash_table_destroy (info->seq_points);
5667 g_hash_table_destroy (info->arch_seq_points);
5668
5669 if (info->agent_info)
5670 mono_debugger_agent_free_domain_info (domain);
5671
5672 g_free (domain->runtime_info);
5673 domain->runtime_info = NULL;
5674 }
5675
5676 MonoDomain *
5677 mini_init (const char *filename, const char *runtime_version)
5678 {
5679 MonoDomain *domain;
5680 MonoRuntimeCallbacks callbacks;
5681
5682 MONO_PROBE_VES_INIT_BEGIN ();
5683
5684 #ifdef __linux__
5685 if (access ("/proc/self/maps", F_OK) != 0) {
5686 g_print ("Mono requires /proc to be mounted.\n");
5687 exit (1);
5688 }
5689 #endif
5690
5691 /* Happens when using the embedding interface */
5692 if (!default_opt_set)
5693 default_opt = mono_parse_default_optimizations (NULL);
5694
5695 InitializeCriticalSection (&jit_mutex);
5696
5697 #ifdef MONO_DEBUGGER_SUPPORTED
5698 if (mini_debug_running_inside_mdb ())
5699 mini_debugger_init ();
5700 #endif
5701
5702 #ifdef MONO_ARCH_HAVE_TLS_GET
5703 mono_runtime_set_has_tls_get (MONO_ARCH_HAVE_TLS_GET);
5704 #else
5705 mono_runtime_set_has_tls_get (FALSE);
5706 #endif
5707
5708 if (!global_codeman)
5709 global_codeman = mono_code_manager_new ();
5710 jit_icall_name_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
5711
5712 memset (&callbacks, 0, sizeof (callbacks));
5713 callbacks.create_ftnptr = mini_create_ftnptr;
5714 callbacks.get_addr_from_ftnptr = mini_get_addr_from_ftnptr;
5715 callbacks.get_runtime_build_info = mono_get_runtime_build_info;
5716
5717 #ifdef MONO_ARCH_HAVE_IMT
5718 if (mono_use_imt) {
5719 callbacks.get_vtable_trampoline = mini_get_vtable_trampoline;
5720 callbacks.get_imt_trampoline = mini_get_imt_trampoline;
5721 }
5722 #endif
5723
5724 mono_install_callbacks (&callbacks);
5725
5726 mono_arch_cpu_init ();
5727
5728 mono_arch_init ();
5729
5730 mono_unwind_init ();
5731
5732 mini_gc_init ();
5733
5734 if (getenv ("MONO_DEBUG") != NULL)
5735 mini_parse_debug_options ();
5736
5737 if (getenv ("MONO_XDEBUG")) {
5738 char *xdebug_opts = getenv ("MONO_XDEBUG");
5739 mono_xdebug_init (xdebug_opts);
5740 /* So methods for multiple domains don't have the same address */
5741 mono_dont_free_domains = TRUE;
5742 mono_using_xdebug = TRUE;
5743 } else if (mini_get_debug_options ()->gdb) {
5744 mono_xdebug_init ((char*)"gdb");
5745 mono_dont_free_domains = TRUE;
5746 mono_using_xdebug = TRUE;
5747 }
5748
5749 #ifdef ENABLE_LLVM
5750 mono_llvm_init ();
5751 #endif
5752
5753 mono_trampolines_init ();
5754
5755 if (!g_thread_supported ())
5756 g_thread_init (NULL);
5757
5758 mono_jit_tls_id = TlsAlloc ();
5759 setup_jit_tls_data ((gpointer)-1, mono_thread_abort);
5760
5761 if (default_opt & MONO_OPT_AOT)
5762 mono_aot_init ();
5763
5764 mono_debugger_agent_init ();
5765
5766 #ifdef MONO_ARCH_GSHARED_SUPPORTED
5767 mono_set_generic_sharing_supported (TRUE);
5768 #endif
5769
5770 #ifndef MONO_CROSS_COMPILE
5771 mono_runtime_install_handlers ();
5772 #endif
5773 mono_threads_install_cleanup (mini_thread_cleanup);
5774
5775 #ifdef MONO_ARCH_HAVE_NOTIFY_PENDING_EXC
5776 // This is experimental code so provide an env var to switch it off
5777 if (getenv ("MONO_DISABLE_PENDING_EXCEPTIONS")) {
5778 printf ("MONO_DISABLE_PENDING_EXCEPTIONS env var set.\n");
5779 } else {
5780 check_for_pending_exc = FALSE;
5781 mono_threads_install_notify_pending_exc (mono_arch_notify_pending_exc);
5782 }
5783 #endif
5784
5785 #define JIT_TRAMPOLINES_WORK
5786 #ifdef JIT_TRAMPOLINES_WORK
5787 mono_install_compile_method (mono_jit_compile_method);
5788 mono_install_free_method (mono_jit_free_method);
5789 mono_install_trampoline (mono_create_jit_trampoline);
5790 mono_install_jump_trampoline (mono_create_jump_trampoline);
5791 mono_install_remoting_trampoline (mono_jit_create_remoting_trampoline);
5792 mono_install_delegate_trampoline (mono_create_delegate_trampoline);
5793 mono_install_create_domain_hook (mini_create_jit_domain_info);
5794 mono_install_free_domain_hook (mini_free_jit_domain_info);
5795 #endif
5796 #define JIT_INVOKE_WORKS
5797 #ifdef JIT_INVOKE_WORKS
5798 mono_install_runtime_invoke (mono_jit_runtime_invoke);
5799 #endif
5800 mono_install_stack_walk (mono_jit_walk_stack);
5801 mono_install_get_cached_class_info (mono_aot_get_cached_class_info);
5802 mono_install_get_class_from_name (mono_aot_get_class_from_name);
5803 mono_install_jit_info_find_in_aot (mono_aot_find_jit_info);
5804
5805 if (debug_options.collect_pagefault_stats) {
5806 mono_aot_set_make_unreadable (TRUE);
5807 }
5808
5809 if (runtime_version)
5810 domain = mono_init_version (filename, runtime_version);
5811 else
5812 domain = mono_init_from_assembly (filename, filename);
5813
5814 if (mono_aot_only) {
5815 /* This helps catch code allocation requests */
5816 mono_code_manager_set_read_only (domain->code_mp);
5817 }
5818
5819 #ifdef MONO_ARCH_HAVE_IMT
5820 if (mono_use_imt) {
5821 if (mono_aot_only)
5822 mono_install_imt_thunk_builder (mono_aot_get_imt_thunk);
5823 else
5824 mono_install_imt_thunk_builder (mono_arch_build_imt_thunk);
5825 }
5826 #endif
5827
5828 /* This must come after mono_init () in the aot-only case */
5829 mono_exceptions_init ();
5830 mono_install_handler (mono_get_throw_exception ());
5831
5832 mono_icall_init ();
5833
5834 mono_add_internal_call ("System.Diagnostics.StackFrame::get_frame_info",
5835 ves_icall_get_frame_info);
5836 mono_add_internal_call ("System.Diagnostics.StackTrace::get_trace",
5837 ves_icall_get_trace);
5838 mono_add_internal_call ("System.Exception::get_trace",
5839 ves_icall_System_Exception_get_trace);
5840 mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityFrame",
5841 ves_icall_System_Security_SecurityFrame_GetSecurityFrame);
5842 mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityStack",
5843 ves_icall_System_Security_SecurityFrame_GetSecurityStack);
5844 mono_add_internal_call ("Mono.Runtime::mono_runtime_install_handlers",
5845 mono_runtime_install_handlers);
5846
5847
5848 create_helper_signature ();
5849
5850 #define JIT_CALLS_WORK
5851 #ifdef JIT_CALLS_WORK
5852 /* Needs to be called here since register_jit_icall depends on it */
5853 mono_marshal_init ();
5854
5855 mono_arch_register_lowlevel_calls ();
5856 register_icall (mono_profiler_method_enter, "mono_profiler_method_enter", NULL, TRUE);
5857 register_icall (mono_profiler_method_leave, "mono_profiler_method_leave", NULL, TRUE);
5858 register_icall (mono_trace_enter_method, "mono_trace_enter_method", NULL, TRUE);
5859 register_icall (mono_trace_leave_method, "mono_trace_leave_method", NULL, TRUE);
5860 register_icall (mono_get_lmf_addr, "mono_get_lmf_addr", "ptr", TRUE);
5861 register_icall (mono_jit_thread_attach, "mono_jit_thread_attach", "void", TRUE);
5862 register_icall (mono_domain_get, "mono_domain_get", "ptr", TRUE);
5863
5864 register_icall (mono_get_throw_exception (), "mono_arch_throw_exception", "void object", TRUE);
5865 register_icall (mono_get_rethrow_exception (), "mono_arch_rethrow_exception", "void object", TRUE);
5866 #if MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION
5867 register_icall (mono_get_throw_corlib_exception (), "mono_arch_throw_corlib_exception",
5868 "void ptr", TRUE);
5869 #endif
5870 register_icall (mono_thread_get_undeniable_exception, "mono_thread_get_undeniable_exception", "object", FALSE);
5871 register_icall (mono_thread_interruption_checkpoint, "mono_thread_interruption_checkpoint", "void", FALSE);
5872 register_icall (mono_thread_force_interruption_checkpoint, "mono_thread_force_interruption_checkpoint", "void", FALSE);
5873 register_icall (mono_load_remote_field_new, "mono_load_remote_field_new", "object object ptr ptr", FALSE);
5874 register_icall (mono_store_remote_field_new, "mono_store_remote_field_new", "void object ptr ptr object", FALSE);
5875
5876 /*
5877 * NOTE, NOTE, NOTE, NOTE:
5878 * when adding emulation for some opcodes, remember to also add a dummy
5879 * rule to the burg files, because we need the arity information to be correct.
5880 */
5881 #ifndef MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
5882 mono_register_opcode_emulation (OP_LMUL, "__emul_lmul", "long long long", mono_llmult, TRUE);
5883 mono_register_opcode_emulation (OP_LDIV, "__emul_ldiv", "long long long", mono_lldiv, FALSE);
5884 mono_register_opcode_emulation (OP_LDIV_UN, "__emul_ldiv_un", "long long long", mono_lldiv_un, FALSE);
5885 mono_register_opcode_emulation (OP_LREM, "__emul_lrem", "long long long", mono_llrem, FALSE);
5886 mono_register_opcode_emulation (OP_LREM_UN, "__emul_lrem_un", "long long long", mono_llrem_un, FALSE);
5887 mono_register_opcode_emulation (OP_LMUL_OVF_UN, "__emul_lmul_ovf_un", "long long long", mono_llmult_ovf_un, FALSE);
5888 mono_register_opcode_emulation (OP_LMUL_OVF, "__emul_lmul_ovf", "long long long", mono_llmult_ovf, FALSE);
5889 #endif
5890
5891 #ifndef MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
5892 mono_register_opcode_emulation (OP_LSHL, "__emul_lshl", "long long int32", mono_lshl, TRUE);
5893 mono_register_opcode_emulation (OP_LSHR, "__emul_lshr", "long long int32", mono_lshr, TRUE);
5894 mono_register_opcode_emulation (OP_LSHR_UN, "__emul_lshr_un", "long long int32", mono_lshr_un, TRUE);
5895 #endif
5896
5897 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_DIV)
5898 mono_register_opcode_emulation (CEE_DIV, "__emul_idiv", "int32 int32 int32", mono_idiv, FALSE);
5899 mono_register_opcode_emulation (CEE_DIV_UN, "__emul_idiv_un", "int32 int32 int32", mono_idiv_un, FALSE);
5900 mono_register_opcode_emulation (CEE_REM, "__emul_irem", "int32 int32 int32", mono_irem, FALSE);
5901 mono_register_opcode_emulation (CEE_REM_UN, "__emul_irem_un", "int32 int32 int32", mono_irem_un, FALSE);
5902 mono_register_opcode_emulation (OP_IDIV, "__emul_op_idiv", "int32 int32 int32", mono_idiv, FALSE);
5903 mono_register_opcode_emulation (OP_IDIV_UN, "__emul_op_idiv_un", "int32 int32 int32", mono_idiv_un, FALSE);
5904 mono_register_opcode_emulation (OP_IREM, "__emul_op_irem", "int32 int32 int32", mono_irem, FALSE);
5905 mono_register_opcode_emulation (OP_IREM_UN, "__emul_op_irem_un", "int32 int32 int32", mono_irem_un, FALSE);
5906 #endif
5907
5908 #ifdef MONO_ARCH_EMULATE_MUL_DIV
5909 mono_register_opcode_emulation (CEE_MUL, "__emul_imul", "int32 int32 int32", mono_imul, TRUE);
5910 mono_register_opcode_emulation (OP_IMUL, "__emul_op_imul", "int32 int32 int32", mono_imul, TRUE);
5911 #endif
5912
5913 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_MUL_OVF)
5914 mono_register_opcode_emulation (CEE_MUL_OVF, "__emul_imul_ovf", "int32 int32 int32", mono_imul_ovf, FALSE);
5915 mono_register_opcode_emulation (CEE_MUL_OVF_UN, "__emul_imul_ovf_un", "int32 int32 int32", mono_imul_ovf_un, FALSE);
5916 mono_register_opcode_emulation (OP_IMUL_OVF, "__emul_op_imul_ovf", "int32 int32 int32", mono_imul_ovf, FALSE);
5917 mono_register_opcode_emulation (OP_IMUL_OVF_UN, "__emul_op_imul_ovf_un", "int32 int32 int32", mono_imul_ovf_un, FALSE);
5918 #endif
5919
5920 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_SOFT_FLOAT)
5921 mono_register_opcode_emulation (OP_FDIV, "__emul_fdiv", "double double double", mono_fdiv, FALSE);
5922 #endif
5923
5924 mono_register_opcode_emulation (OP_FCONV_TO_U8, "__emul_fconv_to_u8", "ulong double", mono_fconv_u8, FALSE);
5925 mono_register_opcode_emulation (OP_FCONV_TO_U4, "__emul_fconv_to_u4", "uint32 double", mono_fconv_u4, FALSE);
5926 mono_register_opcode_emulation (OP_FCONV_TO_OVF_I8, "__emul_fconv_to_ovf_i8", "long double", mono_fconv_ovf_i8, FALSE);
5927 mono_register_opcode_emulation (OP_FCONV_TO_OVF_U8, "__emul_fconv_to_ovf_u8", "ulong double", mono_fconv_ovf_u8, FALSE);
5928
5929 #ifdef MONO_ARCH_EMULATE_FCONV_TO_I8
5930 mono_register_opcode_emulation (OP_FCONV_TO_I8, "__emul_fconv_to_i8", "long double", mono_fconv_i8, FALSE);
5931 #endif
5932 #ifdef MONO_ARCH_EMULATE_CONV_R8_UN
5933 mono_register_opcode_emulation (CEE_CONV_R_UN, "__emul_conv_r_un", "double int32", mono_conv_to_r8_un, FALSE);
5934 mono_register_opcode_emulation (OP_ICONV_TO_R_UN, "__emul_iconv_to_r_un", "double int32", mono_conv_to_r8_un, FALSE);
5935 #endif
5936 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8
5937 mono_register_opcode_emulation (OP_LCONV_TO_R8, "__emul_lconv_to_r8", "double long", mono_lconv_to_r8, FALSE);
5938 #endif
5939 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R4
5940 mono_register_opcode_emulation (OP_LCONV_TO_R4, "__emul_lconv_to_r4", "float long", mono_lconv_to_r4, FALSE);
5941 #endif
5942 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8_UN
5943 mono_register_opcode_emulation (OP_LCONV_TO_R_UN, "__emul_lconv_to_r8_un", "double long", mono_lconv_to_r8_un, FALSE);
5944 #endif
5945 #ifdef MONO_ARCH_EMULATE_FREM
5946 mono_register_opcode_emulation (OP_FREM, "__emul_frem", "double double double", fmod, FALSE);
5947 #endif
5948
5949 #ifdef MONO_ARCH_SOFT_FLOAT
5950 mono_register_opcode_emulation (OP_FSUB, "__emul_fsub", "double double double", mono_fsub, FALSE);
5951 mono_register_opcode_emulation (OP_FADD, "__emul_fadd", "double double double", mono_fadd, FALSE);
5952 mono_register_opcode_emulation (OP_FMUL, "__emul_fmul", "double double double", mono_fmul, FALSE);
5953 mono_register_opcode_emulation (OP_FNEG, "__emul_fneg", "double double", mono_fneg, FALSE);
5954 mono_register_opcode_emulation (CEE_CONV_R8, "__emul_conv_r8", "double int32", mono_conv_to_r8, FALSE);
5955 mono_register_opcode_emulation (OP_ICONV_TO_R8, "__emul_iconv_to_r8", "double int32", mono_conv_to_r8, FALSE);
5956 mono_register_opcode_emulation (CEE_CONV_R4, "__emul_conv_r4", "double int32", mono_conv_to_r4, FALSE);
5957 mono_register_opcode_emulation (OP_ICONV_TO_R4, "__emul_iconv_to_r4", "double int32", mono_conv_to_r4, FALSE);
5958 mono_register_opcode_emulation (OP_FCONV_TO_R4, "__emul_fconv_to_r4", "double double", mono_fconv_r4, FALSE);
5959 mono_register_opcode_emulation (OP_FCONV_TO_I1, "__emul_fconv_to_i1", "int8 double", mono_fconv_i1, FALSE);
5960 mono_register_opcode_emulation (OP_FCONV_TO_I2, "__emul_fconv_to_i2", "int16 double", mono_fconv_i2, FALSE);
5961 mono_register_opcode_emulation (OP_FCONV_TO_I4, "__emul_fconv_to_i4", "int32 double", mono_fconv_i4, FALSE);
5962 mono_register_opcode_emulation (OP_FCONV_TO_U1, "__emul_fconv_to_u1", "uint8 double", mono_fconv_u1, FALSE);
5963 mono_register_opcode_emulation (OP_FCONV_TO_U2, "__emul_fconv_to_u2", "uint16 double", mono_fconv_u2, FALSE);
5964 #if SIZEOF_VOID_P == 4
5965 mono_register_opcode_emulation (OP_FCONV_TO_I, "__emul_fconv_to_i", "int32 double", mono_fconv_i4, FALSE);
5966 #endif
5967
5968 mono_register_opcode_emulation (OP_FBEQ, "__emul_fcmp_eq", "uint32 double double", mono_fcmp_eq, FALSE);
5969 mono_register_opcode_emulation (OP_FBLT, "__emul_fcmp_lt", "uint32 double double", mono_fcmp_lt, FALSE);
5970 mono_register_opcode_emulation (OP_FBGT, "__emul_fcmp_gt", "uint32 double double", mono_fcmp_gt, FALSE);
5971 mono_register_opcode_emulation (OP_FBLE, "__emul_fcmp_le", "uint32 double double", mono_fcmp_le, FALSE);
5972 mono_register_opcode_emulation (OP_FBGE, "__emul_fcmp_ge", "uint32 double double", mono_fcmp_ge, FALSE);
5973 mono_register_opcode_emulation (OP_FBNE_UN, "__emul_fcmp_ne_un", "uint32 double double", mono_fcmp_ne_un, FALSE);
5974 mono_register_opcode_emulation (OP_FBLT_UN, "__emul_fcmp_lt_un", "uint32 double double", mono_fcmp_lt_un, FALSE);
5975 mono_register_opcode_emulation (OP_FBGT_UN, "__emul_fcmp_gt_un", "uint32 double double", mono_fcmp_gt_un, FALSE);
5976 mono_register_opcode_emulation (OP_FBLE_UN, "__emul_fcmp_le_un", "uint32 double double", mono_fcmp_le_un, FALSE);
5977 mono_register_opcode_emulation (OP_FBGE_UN, "__emul_fcmp_ge_un", "uint32 double double", mono_fcmp_ge_un, FALSE);
5978
5979 mono_register_opcode_emulation (OP_FCEQ, "__emul_fcmp_ceq", "uint32 double double", mono_fceq, FALSE);
5980 mono_register_opcode_emulation (OP_FCGT, "__emul_fcmp_cgt", "uint32 double double", mono_fcgt, FALSE);
5981 mono_register_opcode_emulation (OP_FCGT_UN, "__emul_fcmp_cgt_un", "uint32 double double", mono_fcgt_un, FALSE);
5982 mono_register_opcode_emulation (OP_FCLT, "__emul_fcmp_clt", "uint32 double double", mono_fclt, FALSE);
5983 mono_register_opcode_emulation (OP_FCLT_UN, "__emul_fcmp_clt_un", "uint32 double double", mono_fclt_un, FALSE);
5984
5985 register_icall (mono_fload_r4, "mono_fload_r4", "double ptr", FALSE);
5986 register_icall (mono_fstore_r4, "mono_fstore_r4", "void double ptr", FALSE);
5987 register_icall (mono_fload_r4_arg, "mono_fload_r4_arg", "uint32 double", FALSE);
5988 register_icall (mono_isfinite, "mono_isfinite", "uint32 double", FALSE);
5989 #endif
5990
5991 #ifdef COMPRESSED_INTERFACE_BITMAP
5992 register_icall (mono_class_interface_match, "mono_class_interface_match", "uint32 ptr int32", TRUE);
5993 #endif
5994
5995 #if SIZEOF_REGISTER == 4
5996 mono_register_opcode_emulation (OP_FCONV_TO_U, "__emul_fconv_to_u", "uint32 double", mono_fconv_u4, TRUE);
5997 #endif
5998
5999 /* other jit icalls */
6000 register_icall (mono_delegate_ctor, "mono_delegate_ctor", "void object object ptr", FALSE);
6001 register_icall (mono_class_static_field_address , "mono_class_static_field_address",
6002 "ptr ptr ptr", FALSE);
6003 register_icall (mono_ldtoken_wrapper, "mono_ldtoken_wrapper", "ptr ptr ptr ptr", FALSE);
6004 register_icall (mono_ldtoken_wrapper_generic_shared, "mono_ldtoken_wrapper_generic_shared",
6005 "ptr ptr ptr ptr", FALSE);
6006 register_icall (mono_get_special_static_data, "mono_get_special_static_data", "ptr int", FALSE);
6007 register_icall (mono_ldstr, "mono_ldstr", "object ptr ptr int32", FALSE);
6008 register_icall (mono_helper_stelem_ref_check, "helper_stelem_ref_check", "void object object", FALSE);
6009 register_icall (mono_object_new, "mono_object_new", "object ptr ptr", FALSE);
6010 register_icall (mono_object_new_specific, "mono_object_new_specific", "object ptr", FALSE);
6011 register_icall (mono_array_new, "mono_array_new", "object ptr ptr int32", FALSE);
6012 register_icall (mono_array_new_specific, "mono_array_new_specific", "object ptr int32", FALSE);
6013 register_icall (mono_runtime_class_init, "mono_runtime_class_init", "void ptr", FALSE);
6014 register_icall (mono_ldftn, "mono_ldftn", "ptr ptr", FALSE);
6015 register_icall (mono_ldvirtfn, "mono_ldvirtfn", "ptr object ptr", FALSE);
6016 register_icall (mono_ldvirtfn_gshared, "mono_ldvirtfn_gshared", "ptr object ptr", FALSE);
6017 register_icall (mono_helper_compile_generic_method, "compile_generic_method", "ptr object ptr ptr", FALSE);
6018 register_icall (mono_helper_ldstr, "helper_ldstr", "object ptr int", FALSE);
6019 register_icall (mono_helper_ldstr_mscorlib, "helper_ldstr_mscorlib", "object int", FALSE);
6020 register_icall (mono_helper_newobj_mscorlib, "helper_newobj_mscorlib", "object int", FALSE);
6021 register_icall (mono_value_copy, "mono_value_copy", "void ptr ptr ptr", FALSE);
6022 register_icall (mono_object_castclass, "mono_object_castclass", "object object ptr", FALSE);
6023 register_icall (mono_break, "mono_break", NULL, TRUE);
6024 register_icall (mono_create_corlib_exception_0, "mono_create_corlib_exception_0", "object int", TRUE);
6025 register_icall (mono_create_corlib_exception_1, "mono_create_corlib_exception_1", "object int object", TRUE);
6026 register_icall (mono_create_corlib_exception_2, "mono_create_corlib_exception_2", "object int object object", TRUE);
6027 register_icall (mono_array_new_1, "mono_array_new_1", "object ptr int", FALSE);
6028 register_icall (mono_array_new_2, "mono_array_new_2", "object ptr int int", FALSE);
6029 register_icall (mono_array_new_3, "mono_array_new_3", "object ptr int int int", FALSE);
6030 register_icall (mono_get_native_calli_wrapper, "mono_get_native_calli_wrapper", "ptr ptr ptr ptr", FALSE);
6031 register_icall (mono_resume_unwind, "mono_resume_unwind", "void", TRUE);
6032
6033 #ifdef HAVE_WRITE_BARRIERS
6034 register_icall (mono_gc_wbarrier_value_copy_bitmap, "mono_gc_wbarrier_value_copy_bitmap", "void ptr ptr int int", FALSE);
6035 #endif
6036
6037 #endif
6038
6039 mono_generic_sharing_init ();
6040
6041 #ifdef MONO_ARCH_SIMD_INTRINSICS
6042 mono_simd_intrinsics_init ();
6043 #endif
6044
6045 #if MONO_SUPPORT_TASKLETS
6046 mono_tasklets_init ();
6047 #endif
6048
6049 if (mono_compile_aot)
6050 /*
6051 * Avoid running managed code when AOT compiling, since the platform
6052 * might only support aot-only execution.
6053 */
6054 mono_runtime_set_no_exec (TRUE);
6055
6056 #define JIT_RUNTIME_WORKS
6057 #ifdef JIT_RUNTIME_WORKS
6058 mono_install_runtime_cleanup ((MonoDomainFunc)mini_cleanup);
6059 mono_runtime_init (domain, mono_thread_start_cb, mono_thread_attach_cb);
6060 mono_thread_attach (domain);
6061 #endif
6062
6063 mono_profiler_runtime_initialized ();
6064
6065 MONO_PROBE_VES_INIT_END ();
6066
6067 return domain;
6068 }
6069
6070 MonoJitStats mono_jit_stats = {0};
6071
6072 static void
6073 print_jit_stats (void)
6074 {
6075 if (mono_jit_stats.enabled) {
6076 g_print ("Mono Jit statistics\n");
6077 g_print ("Compiled methods: %ld\n", mono_jit_stats.methods_compiled);
6078 g_print ("Methods from AOT: %ld\n", mono_jit_stats.methods_aot);
6079 g_print ("Methods cache lookup: %ld\n", mono_jit_stats.methods_lookups);
6080 g_print ("Method trampolines: %ld\n", mono_jit_stats.method_trampolines);
6081 g_print ("Basic blocks: %ld\n", mono_jit_stats.basic_blocks);
6082 g_print ("Max basic blocks: %ld\n", mono_jit_stats.max_basic_blocks);
6083 g_print ("Allocated vars: %ld\n", mono_jit_stats.allocate_var);
6084 g_print ("Compiled CIL code size: %ld\n", mono_jit_stats.cil_code_size);
6085 g_print ("Native code size: %ld\n", mono_jit_stats.native_code_size);
6086 g_print ("Max code size ratio: %.2f (%s)\n", mono_jit_stats.max_code_size_ratio/100.0,
6087 mono_jit_stats.max_ratio_method);
6088 g_print ("Biggest method: %ld (%s)\n", mono_jit_stats.biggest_method_size,
6089 mono_jit_stats.biggest_method);
6090 g_print ("Code reallocs: %ld\n", mono_jit_stats.code_reallocs);
6091 g_print ("Allocated code size: %ld\n", mono_jit_stats.allocated_code_size);
6092 g_print ("Inlineable methods: %ld\n", mono_jit_stats.inlineable_methods);
6093 g_print ("Inlined methods: %ld\n", mono_jit_stats.inlined_methods);
6094 g_print ("Regvars: %ld\n", mono_jit_stats.regvars);
6095 g_print ("Locals stack size: %ld\n", mono_jit_stats.locals_stack_size);
6096
6097 g_print ("\nCreated object count: %ld\n", mono_stats.new_object_count);
6098 g_print ("Delegates created: %ld\n", mono_stats.delegate_creations);
6099 g_print ("Initialized classes: %ld\n", mono_stats.initialized_class_count);
6100 g_print ("Used classes: %ld\n", mono_stats.used_class_count);
6101 g_print ("Generic vtables: %ld\n", mono_stats.generic_vtable_count);
6102 g_print ("Methods: %ld\n", mono_stats.method_count);
6103 g_print ("Static data size: %ld\n", mono_stats.class_static_data_size);
6104 g_print ("VTable data size: %ld\n", mono_stats.class_vtable_size);
6105 g_print ("Mscorlib mempool size: %d\n", mono_mempool_get_allocated (mono_defaults.corlib->mempool));
6106
6107 g_print ("\nInitialized classes: %ld\n", mono_stats.generic_class_count);
6108 g_print ("Inflated types: %ld\n", mono_stats.inflated_type_count);
6109 g_print ("Generics virtual invokes: %ld\n", mono_jit_stats.generic_virtual_invocations);
6110
6111 g_print ("Sharable generic methods: %ld\n", mono_stats.generics_sharable_methods);
6112 g_print ("Unsharable generic methods: %ld\n", mono_stats.generics_unsharable_methods);
6113 g_print ("Shared generic methods: %ld\n", mono_stats.generics_shared_methods);
6114
6115 g_print ("Dynamic code allocs: %ld\n", mono_stats.dynamic_code_alloc_count);
6116 g_print ("Dynamic code bytes: %ld\n", mono_stats.dynamic_code_bytes_count);
6117 g_print ("Dynamic code frees: %ld\n", mono_stats.dynamic_code_frees_count);
6118
6119 g_print ("IMT tables size: %ld\n", mono_stats.imt_tables_size);
6120 g_print ("IMT number of tables: %ld\n", mono_stats.imt_number_of_tables);
6121 g_print ("IMT number of methods: %ld\n", mono_stats.imt_number_of_methods);
6122 g_print ("IMT used slots: %ld\n", mono_stats.imt_used_slots);
6123 g_print ("IMT colliding slots: %ld\n", mono_stats.imt_slots_with_collisions);
6124 g_print ("IMT max collisions: %ld\n", mono_stats.imt_max_collisions_in_slot);
6125 g_print ("IMT methods at max col: %ld\n", mono_stats.imt_method_count_when_max_collisions);
6126 g_print ("IMT thunks size: %ld\n", mono_stats.imt_thunks_size);
6127
6128 g_print ("JIT info table inserts: %ld\n", mono_stats.jit_info_table_insert_count);
6129 g_print ("JIT info table removes: %ld\n", mono_stats.jit_info_table_remove_count);
6130 g_print ("JIT info table lookups: %ld\n", mono_stats.jit_info_table_lookup_count);
6131
6132 g_print ("Hazardous pointers: %ld\n", mono_stats.hazardous_pointer_count);
6133 #ifdef HAVE_SGEN_GC
6134 g_print ("Minor GC collections: %ld\n", mono_stats.minor_gc_count);
6135 #endif
6136 g_print ("Major GC collections: %ld\n", mono_stats.major_gc_count);
6137 #ifdef HAVE_SGEN_GC
6138 g_print ("Minor GC time in msecs: %lf\n", (double)mono_stats.minor_gc_time_usecs / 1000.0);
6139 #endif
6140 g_print ("Major GC time in msecs: %lf\n", (double)mono_stats.major_gc_time_usecs / 1000.0);
6141 if (mono_security_get_mode () == MONO_SECURITY_MODE_CAS) {
6142 g_print ("\nDecl security check : %ld\n", mono_jit_stats.cas_declsec_check);
6143 g_print ("LinkDemand (user) : %ld\n", mono_jit_stats.cas_linkdemand);
6144 g_print ("LinkDemand (icall) : %ld\n", mono_jit_stats.cas_linkdemand_icall);
6145 g_print ("LinkDemand (pinvoke) : %ld\n", mono_jit_stats.cas_linkdemand_pinvoke);
6146 g_print ("LinkDemand (aptc) : %ld\n", mono_jit_stats.cas_linkdemand_aptc);
6147 g_print ("Demand (code gen) : %ld\n", mono_jit_stats.cas_demand_generation);
6148 }
6149
6150 g_free (mono_jit_stats.max_ratio_method);
6151 mono_jit_stats.max_ratio_method = NULL;
6152 g_free (mono_jit_stats.biggest_method);
6153 mono_jit_stats.biggest_method = NULL;
6154 }
6155 }
6156
6157 void
6158 mini_cleanup (MonoDomain *domain)
6159 {
6160 mono_runtime_shutdown_stat_profiler ();
6161
6162 #ifndef DISABLE_COM
6163 cominterop_release_all_rcws ();
6164 #endif
6165
6166 mono_runtime_shutdown ();
6167
6168 #ifndef MONO_CROSS_COMPILE
6169 /*
6170 * mono_runtime_cleanup() and mono_domain_finalize () need to
6171 * be called early since they need the execution engine still
6172 * fully working (mono_domain_finalize may invoke managed finalizers
6173 * and mono_runtime_cleanup will wait for other threads to finish).
6174 */
6175 mono_domain_finalize (domain, 2000);
6176 #endif
6177
6178 /* This accesses metadata so needs to be called before runtime shutdown */
6179 print_jit_stats ();
6180
6181 mono_profiler_shutdown ();
6182
6183 #ifndef MONO_CROSS_COMPILE
6184 mono_runtime_cleanup (domain);
6185 #endif
6186
6187 mono_icall_cleanup ();
6188
6189 mono_runtime_cleanup_handlers ();
6190
6191 mono_domain_free (domain, TRUE);
6192
6193 mono_debugger_cleanup ();
6194
6195 #ifdef ENABLE_LLVM
6196 mono_llvm_cleanup ();
6197 #endif
6198
6199 mono_trampolines_cleanup ();
6200
6201 mono_unwind_cleanup ();
6202
6203 if (!mono_dont_free_global_codeman)
6204 mono_code_manager_destroy (global_codeman);
6205 g_hash_table_destroy (jit_icall_name_hash);
6206 g_free (emul_opcode_map);
6207 g_free (emul_opcode_opcodes);
6208
6209 mono_arch_cleanup ();
6210
6211 mono_cleanup ();
6212
6213 mono_trace_cleanup ();
6214
6215 mono_counters_dump (-1, stdout);
6216
6217 if (mono_inject_async_exc_method)
6218 mono_method_desc_free (mono_inject_async_exc_method);
6219
6220 TlsFree(mono_jit_tls_id);
6221
6222 DeleteCriticalSection (&jit_mutex);
6223
6224 DeleteCriticalSection (&mono_delegate_section);
6225 }
6226
6227 void
6228 mono_set_defaults (int verbose_level, guint32 opts)
6229 {
6230 mini_verbose = verbose_level;
6231 default_opt = opts;
6232 default_opt_set = TRUE;
6233 }
6234
6235 void
6236 mono_disable_optimizations (guint32 opts)
6237 {
6238 default_opt &= ~opts;
6239 }
6240
6241 /*
6242 * mono_get_runtime_build_info:
6243 *
6244 * Return the runtime version + build date in string format.
6245 * The returned string is owned by the caller.
6246 */
6247 char*
6248 mono_get_runtime_build_info (void)
6249 {
6250 if (mono_build_date)
6251 return g_strdup_printf ("%s (%s %s)", VERSION, FULL_VERSION, mono_build_date);
6252 else
6253 return g_strdup_printf ("%s (%s)", VERSION, FULL_VERSION);
6254 }
6255
6256 static void
6257 mono_precompile_assembly (MonoAssembly *ass, void *user_data)
6258 {
6259 GHashTable *assemblies = (GHashTable*)user_data;
6260 MonoImage *image = mono_assembly_get_image (ass);
6261 MonoMethod *method, *invoke;
6262 int i, count = 0;
6263
6264 if (g_hash_table_lookup (assemblies, ass))
6265 return;
6266
6267 g_hash_table_insert (assemblies, ass, ass);
6268
6269 if (mini_verbose > 0)
6270 printf ("PRECOMPILE: %s.\n", mono_image_get_filename (image));
6271
6272 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
6273 method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
6274 if (method->flags & METHOD_ATTRIBUTE_ABSTRACT)
6275 continue;
6276
6277 count++;
6278 if (mini_verbose > 1) {
6279 char * desc = mono_method_full_name (method, TRUE);
6280 g_print ("Compiling %d %s\n", count, desc);
6281 g_free (desc);
6282 }
6283 mono_compile_method (method);
6284 if (strcmp (method->name, "Finalize") == 0) {
6285 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
6286 mono_compile_method (invoke);
6287 }
6288 if (method->klass->marshalbyref && mono_method_signature (method)->hasthis) {
6289 invoke = mono_marshal_get_remoting_invoke_with_check (method);
6290 mono_compile_method (invoke);
6291 }
6292 }
6293
6294 /* Load and precompile referenced assemblies as well */
6295 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_ASSEMBLYREF); ++i) {
6296 mono_assembly_load_reference (image, i);
6297 if (image->references [i])
6298 mono_precompile_assembly (image->references [i], assemblies);
6299 }
6300 }
6301
6302 void mono_precompile_assemblies ()
6303 {
6304 GHashTable *assemblies = g_hash_table_new (NULL, NULL);
6305
6306 mono_assembly_foreach ((GFunc)mono_precompile_assembly, assemblies);
6307
6308 g_hash_table_destroy (assemblies);
6309 }
6310
6311 #ifndef DISABLE_JIT
6312
6313 void*
6314 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments) {
6315 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
6316 }
6317
6318 void
6319 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
6320 {
6321 TryBlockHole *hole = mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
6322 hole->clause = clause;
6323 hole->start_offset = start - cfg->native_code;
6324 hole->basic_block = bb;
6325
6326 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
6327 }
6328
6329 #endif
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