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2010-04-19 Rodrigo Kumpera <rkumpera@novell.com>
[mono.git] / mono / mini / mini.c
blob280ea07e5450e34b3ab8b757d4acb651b0fbf219
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/utils/mono-math.h>
49 #include <mono/utils/mono-compiler.h>
50 #include <mono/utils/mono-counters.h>
51 #include <mono/utils/mono-logger-internal.h>
52 #include <mono/utils/mono-mmap.h>
53 #include <mono/utils/dtrace.h>
54
55 #include "mini.h"
56 #include "tasklets.h"
57 #include <string.h>
58 #include <ctype.h>
59 #include "trace.h"
60 #include "version.h"
61
62 #include "jit-icalls.h"
63
64 #include "debug-mini.h"
65 #include "mini-gc.h"
66 #include "debugger-agent.h"
67
68 static gpointer mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt, MonoException **ex);
69
70 /* helper methods signature */
71 /* FIXME: Make these static again */
72 MonoMethodSignature *helper_sig_class_init_trampoline = NULL;
73 MonoMethodSignature *helper_sig_domain_get = NULL;
74 MonoMethodSignature *helper_sig_generic_class_init_trampoline = NULL;
75 MonoMethodSignature *helper_sig_rgctx_lazy_fetch_trampoline = NULL;
76 MonoMethodSignature *helper_sig_monitor_enter_exit_trampoline = NULL;
77 MonoMethodSignature *helper_sig_monitor_enter_exit_trampoline_llvm = NULL;
78
79 static guint32 default_opt = 0;
80 static gboolean default_opt_set = FALSE;
81
82 guint32 mono_jit_tls_id = -1;
83
84 #ifdef HAVE_KW_THREAD
85 static __thread gpointer mono_jit_tls MONO_TLS_FAST;
86 #endif
87
88 MonoTraceSpec *mono_jit_trace_calls = NULL;
89 gboolean mono_break_on_exc = FALSE;
90 gboolean mono_compile_aot = FALSE;
91 /* If this is set, no code is generated dynamically, everything is taken from AOT files */
92 gboolean mono_aot_only = FALSE;
93 /* Whenever to use IMT */
94 #ifdef MONO_ARCH_HAVE_IMT
95 gboolean mono_use_imt = TRUE;
96 #else
97 gboolean mono_use_imt = FALSE;
98 #endif
99 MonoMethodDesc *mono_inject_async_exc_method = NULL;
100 int mono_inject_async_exc_pos;
101 MonoMethodDesc *mono_break_at_bb_method = NULL;
102 int mono_break_at_bb_bb_num;
103 gboolean mono_do_x86_stack_align = TRUE;
104 const char *mono_build_date;
105 gboolean mono_do_signal_chaining;
106 static gboolean mono_using_xdebug;
107 static int mini_verbose = 0;
108
109 /* Statistics */
110 #ifdef ENABLE_LLVM
111 static int methods_with_llvm, methods_without_llvm;
112 #endif
113
114 /*
115 * This flag controls whenever the runtime uses LLVM compiled code.
116 * Enabling this causes different/slower code paths to be used, which is why it
117 * defaults to FALSE if ENABLE_LLVM is not defined, i.e. the runtime is only capable of
118 * running AOT code compiled by LLVM.
119 * Changes when this flag is set include:
120 * - a per method vtable trampoline is used to handle virtual calls, instead of only
121 * one trampoline.
122 * - fast generic virtual calls are not supported.
123 */
124 #ifdef ENABLE_LLVM
125 gboolean mono_use_llvm = TRUE;
126 #else
127 gboolean mono_use_llvm = FALSE;
128 #endif
129
130 #define mono_jit_lock() EnterCriticalSection (&jit_mutex)
131 #define mono_jit_unlock() LeaveCriticalSection (&jit_mutex)
132 static CRITICAL_SECTION jit_mutex;
133
134 static MonoCodeManager *global_codeman = NULL;
135
136 static GHashTable *jit_icall_name_hash = NULL;
137
138 static MonoDebugOptions debug_options;
139
140 #ifdef VALGRIND_JIT_REGISTER_MAP
141 static int valgrind_register = 0;
142 #endif
143
144 /*
145 * Table written to by the debugger with a 1-based index into the
146 * mono_breakpoint_info table, which contains changes made to
147 * the JIT instructions by the debugger.
148 */
149 gssize
150 mono_breakpoint_info_index [MONO_BREAKPOINT_ARRAY_SIZE];
151
152 /* Whenever to check for pending exceptions in managed-to-native wrappers */
153 gboolean check_for_pending_exc = TRUE;
154
155 /* Whenever to disable passing/returning small valuetypes in registers for managed methods */
156 gboolean disable_vtypes_in_regs = FALSE;
157
158 gboolean mono_dont_free_global_codeman;
159
160 gboolean
161 mono_running_on_valgrind (void)
162 {
163 if (RUNNING_ON_VALGRIND){
164 #ifdef VALGRIND_JIT_REGISTER_MAP
165 valgrind_register = TRUE;
166 #endif
167 return TRUE;
168 } else
169 return FALSE;
170 }
171
172 typedef struct {
173 MonoExceptionClause *clause;
174 MonoBasicBlock *basic_block;
175 int start_offset;
176 } TryBlockHole;
177
178 typedef struct {
179 void *ip;
180 MonoMethod *method;
181 } FindTrampUserData;
182
183 static void
184 find_tramp (gpointer key, gpointer value, gpointer user_data)
185 {
186 FindTrampUserData *ud = (FindTrampUserData*)user_data;
187
188 if (value == ud->ip)
189 ud->method = (MonoMethod*)key;
190 }
191
192 /* debug function */
193 G_GNUC_UNUSED static char*
194 get_method_from_ip (void *ip)
195 {
196 MonoJitInfo *ji;
197 char *method;
198 char *res;
199 MonoDomain *domain = mono_domain_get ();
200 MonoDebugSourceLocation *location;
201 FindTrampUserData user_data;
202
203 ji = mono_jit_info_table_find (domain, ip);
204 if (!ji) {
205 user_data.ip = ip;
206 user_data.method = NULL;
207 mono_domain_lock (domain);
208 g_hash_table_foreach (domain_jit_info (domain)->jit_trampoline_hash, find_tramp, &user_data);
209 mono_domain_unlock (domain);
210 if (user_data.method) {
211 char *mname = mono_method_full_name (user_data.method, TRUE);
212 res = g_strdup_printf ("<%p - JIT trampoline for %s>", ip, mname);
213 g_free (mname);
214 return res;
215 }
216 else
217 return NULL;
218 }
219 method = mono_method_full_name (ji->method, TRUE);
220 /* FIXME: unused ? */
221 location = mono_debug_lookup_source_location (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), domain);
222
223 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);
224
225 mono_debug_free_source_location (location);
226 g_free (method);
227
228 return res;
229 }
230
231 /**
232 * mono_pmip:
233 * @ip: an instruction pointer address
234 *
235 * This method is used from a debugger to get the name of the
236 * method at address @ip. This routine is typically invoked from
237 * a debugger like this:
238 *
239 * (gdb) print mono_pmip ($pc)
240 *
241 * Returns: the name of the method at address @ip.
242 */
243 G_GNUC_UNUSED char *
244 mono_pmip (void *ip)
245 {
246 return get_method_from_ip (ip);
247 }
248
249 /**
250 * mono_print_method_from_ip
251 * @ip: an instruction pointer address
252 *
253 * This method is used from a debugger to get the name of the
254 * method at address @ip.
255 *
256 * This prints the name of the method at address @ip in the standard
257 * output. Unlike mono_pmip which returns a string, this routine
258 * prints the value on the standard output.
259 */
260 void
261 mono_print_method_from_ip (void *ip)
262 {
263 MonoJitInfo *ji;
264 char *method;
265 MonoDebugSourceLocation *source;
266 MonoDomain *domain = mono_domain_get ();
267 MonoDomain *target_domain = mono_domain_get ();
268 FindTrampUserData user_data;
269
270 ji = mini_jit_info_table_find (domain, ip, &target_domain);
271 if (!ji) {
272 user_data.ip = ip;
273 user_data.method = NULL;
274 mono_domain_lock (domain);
275 g_hash_table_foreach (domain_jit_info (domain)->jit_trampoline_hash, find_tramp, &user_data);
276 mono_domain_unlock (domain);
277 if (user_data.method) {
278 char *mname = mono_method_full_name (user_data.method, TRUE);
279 printf ("IP %p is a JIT trampoline for %s\n", ip, mname);
280 g_free (mname);
281 }
282 else
283 g_print ("No method at %p\n", ip);
284 return;
285 }
286 method = mono_method_full_name (ji->method, TRUE);
287 source = mono_debug_lookup_source_location (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), target_domain);
288
289 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);
290
291 if (source)
292 g_print ("%s:%d\n", source->source_file, source->row);
293
294 mono_debug_free_source_location (source);
295 g_free (method);
296 }
297
298 /*
299 * mono_method_same_domain:
300 *
301 * Determine whenever two compiled methods are in the same domain, thus
302 * the address of the callee can be embedded in the caller.
303 */
304 gboolean mono_method_same_domain (MonoJitInfo *caller, MonoJitInfo *callee)
305 {
306 if (!caller || !callee)
307 return FALSE;
308
309 /*
310 * If the call was made from domain-neutral to domain-specific
311 * code, we can't patch the call site.
312 */
313 if (caller->domain_neutral && !callee->domain_neutral)
314 return FALSE;
315
316 if ((caller->method->klass == mono_defaults.appdomain_class) &&
317 (strstr (caller->method->name, "InvokeInDomain"))) {
318 /* The InvokeInDomain methods change the current appdomain */
319 return FALSE;
320 }
321
322 return TRUE;
323 }
324
325 /*
326 * mono_global_codeman_reserve:
327 *
328 * Allocate code memory from the global code manager.
329 */
330 void *mono_global_codeman_reserve (int size)
331 {
332 void *ptr;
333
334 if (mono_aot_only)
335 g_error ("Attempting to allocate from the global code manager while running with --aot-only.\n");
336
337 if (!global_codeman) {
338 /* This can happen during startup */
339 global_codeman = mono_code_manager_new ();
340 return mono_code_manager_reserve (global_codeman, size);
341 }
342 else {
343 mono_jit_lock ();
344 ptr = mono_code_manager_reserve (global_codeman, size);
345 mono_jit_unlock ();
346 return ptr;
347 }
348 }
349
350 /**
351 * mono_create_unwind_op:
352 *
353 * Create an unwind op with the given parameters.
354 */
355 MonoUnwindOp*
356 mono_create_unwind_op (int when, int tag, int reg, int val)
357 {
358 MonoUnwindOp *op = g_new0 (MonoUnwindOp, 1);
359
360 op->op = tag;
361 op->reg = reg;
362 op->val = val;
363 op->when = when;
364
365 return op;
366 }
367
368 /**
369 * mono_emit_unwind_op:
370 *
371 * Add an unwind op with the given parameters for the list of unwind ops stored in
372 * cfg->unwind_ops.
373 */
374 void
375 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
376 {
377 MonoUnwindOp *op = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
378
379 op->op = tag;
380 op->reg = reg;
381 op->val = val;
382 op->when = when;
383
384 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
385 }
386
387 MonoJumpInfoToken *
388 mono_jump_info_token_new2 (MonoMemPool *mp, MonoImage *image, guint32 token, MonoGenericContext *context)
389 {
390 MonoJumpInfoToken *res = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoToken));
391 res->image = image;
392 res->token = token;
393 res->has_context = context != NULL;
394 if (context)
395 memcpy (&res->context, context, sizeof (MonoGenericContext));
396
397 return res;
398 }
399
400 MonoJumpInfoToken *
401 mono_jump_info_token_new (MonoMemPool *mp, MonoImage *image, guint32 token)
402 {
403 return mono_jump_info_token_new2 (mp, image, token, NULL);
404 }
405
406 #define MONO_INIT_VARINFO(vi,id) do { \
407 (vi)->range.first_use.pos.bid = 0xffff; \
408 (vi)->reg = -1; \
409 (vi)->idx = (id); \
410 } while (0)
411
412 /**
413 * mono_unlink_bblock:
414 *
415 * Unlink two basic blocks.
416 */
417 void
418 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
419 {
420 int i, pos;
421 gboolean found;
422
423 found = FALSE;
424 for (i = 0; i < from->out_count; ++i) {
425 if (to == from->out_bb [i]) {
426 found = TRUE;
427 break;
428 }
429 }
430 if (found) {
431 pos = 0;
432 for (i = 0; i < from->out_count; ++i) {
433 if (from->out_bb [i] != to)
434 from->out_bb [pos ++] = from->out_bb [i];
435 }
436 g_assert (pos == from->out_count - 1);
437 from->out_count--;
438 }
439
440 found = FALSE;
441 for (i = 0; i < to->in_count; ++i) {
442 if (from == to->in_bb [i]) {
443 found = TRUE;
444 break;
445 }
446 }
447 if (found) {
448 pos = 0;
449 for (i = 0; i < to->in_count; ++i) {
450 if (to->in_bb [i] != from)
451 to->in_bb [pos ++] = to->in_bb [i];
452 }
453 g_assert (pos == to->in_count - 1);
454 to->in_count--;
455 }
456 }
457
458 /*
459 * mono_bblocks_linked:
460 *
461 * Return whenever BB1 and BB2 are linked in the CFG.
462 */
463 gboolean
464 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
465 {
466 int i;
467
468 for (i = 0; i < bb1->out_count; ++i) {
469 if (bb1->out_bb [i] == bb2)
470 return TRUE;
471 }
472
473 return FALSE;
474 }
475
476 static int
477 mono_find_block_region_notry (MonoCompile *cfg, int offset)
478 {
479 MonoMethodHeader *header = cfg->header;
480 MonoExceptionClause *clause;
481 int i;
482
483 for (i = 0; i < header->num_clauses; ++i) {
484 clause = &header->clauses [i];
485 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
486 (offset < (clause->handler_offset)))
487 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
488
489 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
490 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
491 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
492 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
493 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
494 else
495 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
496 }
497 }
498
499 return -1;
500 }
501
502 /*
503 * mono_get_block_region_notry:
504 *
505 * Return the region corresponding to REGION, ignoring try clauses nested inside
506 * finally clauses.
507 */
508 int
509 mono_get_block_region_notry (MonoCompile *cfg, int region)
510 {
511 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
512 MonoMethodHeader *header = cfg->header;
513
514 /*
515 * This can happen if a try clause is nested inside a finally clause.
516 */
517 int clause_index = (region >> 8) - 1;
518 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
519
520 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
521 }
522
523 return region;
524 }
525
526 MonoInst *
527 mono_find_spvar_for_region (MonoCompile *cfg, int region)
528 {
529 region = mono_get_block_region_notry (cfg, region);
530
531 return g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
532 }
533
534 static void
535 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
536 {
537 int i;
538
539 array [*dfn] = start;
540 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
541 for (i = 0; i < start->out_count; ++i) {
542 if (start->out_bb [i]->dfn)
543 continue;
544 (*dfn)++;
545 start->out_bb [i]->dfn = *dfn;
546 start->out_bb [i]->df_parent = start;
547 array [*dfn] = start->out_bb [i];
548 df_visit (start->out_bb [i], dfn, array);
549 }
550 }
551
552 guint32
553 mono_reverse_branch_op (guint32 opcode)
554 {
555 static const int reverse_map [] = {
556 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
557 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
558 };
559 static const int reverse_fmap [] = {
560 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
561 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
562 };
563 static const int reverse_lmap [] = {
564 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
565 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
566 };
567 static const int reverse_imap [] = {
568 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
569 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
570 };
571
572 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
573 opcode = reverse_map [opcode - CEE_BEQ];
574 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
575 opcode = reverse_fmap [opcode - OP_FBEQ];
576 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
577 opcode = reverse_lmap [opcode - OP_LBEQ];
578 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
579 opcode = reverse_imap [opcode - OP_IBEQ];
580 } else
581 g_assert_not_reached ();
582
583 return opcode;
584 }
585
586 guint
587 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
588 {
589 if (type->byref)
590 return OP_STORE_MEMBASE_REG;
591
592 handle_enum:
593 switch (type->type) {
594 case MONO_TYPE_I1:
595 case MONO_TYPE_U1:
596 case MONO_TYPE_BOOLEAN:
597 return OP_STOREI1_MEMBASE_REG;
598 case MONO_TYPE_I2:
599 case MONO_TYPE_U2:
600 case MONO_TYPE_CHAR:
601 return OP_STOREI2_MEMBASE_REG;
602 case MONO_TYPE_I4:
603 case MONO_TYPE_U4:
604 return OP_STOREI4_MEMBASE_REG;
605 case MONO_TYPE_I:
606 case MONO_TYPE_U:
607 case MONO_TYPE_PTR:
608 case MONO_TYPE_FNPTR:
609 return OP_STORE_MEMBASE_REG;
610 case MONO_TYPE_CLASS:
611 case MONO_TYPE_STRING:
612 case MONO_TYPE_OBJECT:
613 case MONO_TYPE_SZARRAY:
614 case MONO_TYPE_ARRAY:
615 return OP_STORE_MEMBASE_REG;
616 case MONO_TYPE_I8:
617 case MONO_TYPE_U8:
618 return OP_STOREI8_MEMBASE_REG;
619 case MONO_TYPE_R4:
620 return OP_STORER4_MEMBASE_REG;
621 case MONO_TYPE_R8:
622 return OP_STORER8_MEMBASE_REG;
623 case MONO_TYPE_VALUETYPE:
624 if (type->data.klass->enumtype) {
625 type = mono_class_enum_basetype (type->data.klass);
626 goto handle_enum;
627 }
628 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
629 return OP_STOREX_MEMBASE;
630 return OP_STOREV_MEMBASE;
631 case MONO_TYPE_TYPEDBYREF:
632 return OP_STOREV_MEMBASE;
633 case MONO_TYPE_GENERICINST:
634 type = &type->data.generic_class->container_class->byval_arg;
635 goto handle_enum;
636 case MONO_TYPE_VAR:
637 case MONO_TYPE_MVAR:
638 /* FIXME: all the arguments must be references for now,
639 * later look inside cfg and see if the arg num is
640 * really a reference
641 */
642 g_assert (cfg->generic_sharing_context);
643 return OP_STORE_MEMBASE_REG;
644 default:
645 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
646 }
647 return -1;
648 }
649
650 guint
651 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
652 {
653 if (type->byref)
654 return OP_LOAD_MEMBASE;
655
656 type = mono_type_get_underlying_type (type);
657
658 switch (type->type) {
659 case MONO_TYPE_I1:
660 return OP_LOADI1_MEMBASE;
661 case MONO_TYPE_U1:
662 case MONO_TYPE_BOOLEAN:
663 return OP_LOADU1_MEMBASE;
664 case MONO_TYPE_I2:
665 return OP_LOADI2_MEMBASE;
666 case MONO_TYPE_U2:
667 case MONO_TYPE_CHAR:
668 return OP_LOADU2_MEMBASE;
669 case MONO_TYPE_I4:
670 return OP_LOADI4_MEMBASE;
671 case MONO_TYPE_U4:
672 return OP_LOADU4_MEMBASE;
673 case MONO_TYPE_I:
674 case MONO_TYPE_U:
675 case MONO_TYPE_PTR:
676 case MONO_TYPE_FNPTR:
677 return OP_LOAD_MEMBASE;
678 case MONO_TYPE_CLASS:
679 case MONO_TYPE_STRING:
680 case MONO_TYPE_OBJECT:
681 case MONO_TYPE_SZARRAY:
682 case MONO_TYPE_ARRAY:
683 return OP_LOAD_MEMBASE;
684 case MONO_TYPE_I8:
685 case MONO_TYPE_U8:
686 return OP_LOADI8_MEMBASE;
687 case MONO_TYPE_R4:
688 return OP_LOADR4_MEMBASE;
689 case MONO_TYPE_R8:
690 return OP_LOADR8_MEMBASE;
691 case MONO_TYPE_VALUETYPE:
692 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
693 return OP_LOADX_MEMBASE;
694 case MONO_TYPE_TYPEDBYREF:
695 return OP_LOADV_MEMBASE;
696 case MONO_TYPE_GENERICINST:
697 if (mono_type_generic_inst_is_valuetype (type))
698 return OP_LOADV_MEMBASE;
699 else
700 return OP_LOAD_MEMBASE;
701 break;
702 case MONO_TYPE_VAR:
703 case MONO_TYPE_MVAR:
704 /* FIXME: all the arguments must be references for now,
705 * later look inside cfg and see if the arg num is
706 * really a reference
707 */
708 g_assert (cfg->generic_sharing_context);
709 return OP_LOAD_MEMBASE;
710 default:
711 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
712 }
713 return -1;
714 }
715
716 static guint
717 mini_type_to_ldind (MonoCompile* cfg, MonoType *type)
718 {
719 if (cfg->generic_sharing_context && !type->byref) {
720 /* FIXME: all the arguments must be references for now,
721 * later look inside cfg and see if the arg num is
722 * really a reference
723 */
724 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
725 return CEE_LDIND_REF;
726 }
727 return mono_type_to_ldind (type);
728 }
729
730 guint
731 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
732 {
733 if (cfg->generic_sharing_context && !type->byref) {
734 /* FIXME: all the arguments must be references for now,
735 * later look inside cfg and see if the arg num is
736 * really a reference
737 */
738 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
739 return CEE_STIND_REF;
740 }
741 return mono_type_to_stind (type);
742 }
743
744 int
745 mono_op_imm_to_op (int opcode)
746 {
747 switch (opcode) {
748 case OP_ADD_IMM:
749 #if SIZEOF_REGISTER == 4
750 return OP_IADD;
751 #else
752 return OP_LADD;
753 #endif
754 case OP_IADD_IMM:
755 return OP_IADD;
756 case OP_LADD_IMM:
757 return OP_LADD;
758 case OP_ISUB_IMM:
759 return OP_ISUB;
760 case OP_LSUB_IMM:
761 return OP_LSUB;
762 case OP_IMUL_IMM:
763 return OP_IMUL;
764 case OP_AND_IMM:
765 #if SIZEOF_REGISTER == 4
766 return OP_IAND;
767 #else
768 return OP_LAND;
769 #endif
770 case OP_OR_IMM:
771 #if SIZEOF_REGISTER == 4
772 return OP_IOR;
773 #else
774 return OP_LOR;
775 #endif
776 case OP_XOR_IMM:
777 #if SIZEOF_REGISTER == 4
778 return OP_IXOR;
779 #else
780 return OP_LXOR;
781 #endif
782 case OP_IAND_IMM:
783 return OP_IAND;
784 case OP_LAND_IMM:
785 return OP_LAND;
786 case OP_IOR_IMM:
787 return OP_IOR;
788 case OP_LOR_IMM:
789 return OP_LOR;
790 case OP_IXOR_IMM:
791 return OP_IXOR;
792 case OP_LXOR_IMM:
793 return OP_LXOR;
794 case OP_ISHL_IMM:
795 return OP_ISHL;
796 case OP_LSHL_IMM:
797 return OP_LSHL;
798 case OP_ISHR_IMM:
799 return OP_ISHR;
800 case OP_LSHR_IMM:
801 return OP_LSHR;
802 case OP_ISHR_UN_IMM:
803 return OP_ISHR_UN;
804 case OP_LSHR_UN_IMM:
805 return OP_LSHR_UN;
806 case OP_IDIV_IMM:
807 return OP_IDIV;
808 case OP_IDIV_UN_IMM:
809 return OP_IDIV_UN;
810 case OP_IREM_UN_IMM:
811 return OP_IREM_UN;
812 case OP_IREM_IMM:
813 return OP_IREM;
814 case OP_DIV_IMM:
815 #if SIZEOF_REGISTER == 4
816 return OP_IDIV;
817 #else
818 return OP_LDIV;
819 #endif
820 case OP_REM_IMM:
821 #if SIZEOF_REGISTER == 4
822 return OP_IREM;
823 #else
824 return OP_LREM;
825 #endif
826 case OP_ADDCC_IMM:
827 return OP_ADDCC;
828 case OP_ADC_IMM:
829 return OP_ADC;
830 case OP_SUBCC_IMM:
831 return OP_SUBCC;
832 case OP_SBB_IMM:
833 return OP_SBB;
834 case OP_IADC_IMM:
835 return OP_IADC;
836 case OP_ISBB_IMM:
837 return OP_ISBB;
838 case OP_COMPARE_IMM:
839 return OP_COMPARE;
840 case OP_ICOMPARE_IMM:
841 return OP_ICOMPARE;
842 case OP_LOCALLOC_IMM:
843 return OP_LOCALLOC;
844 default:
845 printf ("%s\n", mono_inst_name (opcode));
846 g_assert_not_reached ();
847 return -1;
848 }
849 }
850
851 /*
852 * mono_decompose_op_imm:
853 *
854 * Replace the OP_.._IMM INS with its non IMM variant.
855 */
856 void
857 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
858 {
859 MonoInst *temp;
860
861 MONO_INST_NEW (cfg, temp, OP_ICONST);
862 temp->inst_c0 = ins->inst_imm;
863 temp->dreg = mono_alloc_ireg (cfg);
864 mono_bblock_insert_before_ins (bb, ins, temp);
865 ins->opcode = mono_op_imm_to_op (ins->opcode);
866 if (ins->opcode == OP_LOCALLOC)
867 ins->sreg1 = temp->dreg;
868 else
869 ins->sreg2 = temp->dreg;
870
871 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
872 }
873
874 static void
875 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
876 {
877 if (vreg >= cfg->vreg_to_inst_len) {
878 MonoInst **tmp = cfg->vreg_to_inst;
879 int size = cfg->vreg_to_inst_len;
880
881 while (vreg >= cfg->vreg_to_inst_len)
882 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
883 cfg->vreg_to_inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
884 if (size)
885 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
886 }
887 cfg->vreg_to_inst [vreg] = inst;
888 }
889
890 #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)))
891 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
892
893 #ifdef DISABLE_JIT
894
895 MonoInst*
896 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
897 {
898 return NULL;
899 }
900
901 #else
902
903 MonoInst*
904 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
905 {
906 MonoInst *inst;
907 int num = cfg->num_varinfo;
908 gboolean regpair;
909
910 if ((num + 1) >= cfg->varinfo_count) {
911 int orig_count = cfg->varinfo_count;
912 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 64;
913 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
914 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
915 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
916 }
917
918 mono_jit_stats.allocate_var++;
919
920 MONO_INST_NEW (cfg, inst, opcode);
921 inst->inst_c0 = num;
922 inst->inst_vtype = type;
923 inst->klass = mono_class_from_mono_type (type);
924 type_to_eval_stack_type (cfg, type, inst);
925 /* if set to 1 the variable is native */
926 inst->backend.is_pinvoke = 0;
927 inst->dreg = vreg;
928
929 cfg->varinfo [num] = inst;
930
931 MONO_INIT_VARINFO (&cfg->vars [num], num);
932 MONO_VARINFO (cfg, num)->vreg = vreg;
933
934 if (vreg != -1)
935 set_vreg_to_inst (cfg, vreg, inst);
936
937 #if SIZEOF_REGISTER == 4
938 #ifdef MONO_ARCH_SOFT_FLOAT
939 regpair = mono_type_is_long (type) || mono_type_is_float (type);
940 #else
941 regpair = mono_type_is_long (type);
942 #endif
943 #else
944 regpair = FALSE;
945 #endif
946
947 if (regpair) {
948 MonoInst *tree;
949
950 /*
951 * These two cannot be allocated using create_var_for_vreg since that would
952 * put it into the cfg->varinfo array, confusing many parts of the JIT.
953 */
954
955 /*
956 * Set flags to VOLATILE so SSA skips it.
957 */
958
959 if (cfg->verbose_level >= 4) {
960 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, inst->dreg + 1, inst->dreg + 2);
961 }
962
963 #ifdef MONO_ARCH_SOFT_FLOAT
964 if (cfg->opt & MONO_OPT_SSA) {
965 if (mono_type_is_float (type))
966 inst->flags = MONO_INST_VOLATILE;
967 }
968 #endif
969
970 /* Allocate a dummy MonoInst for the first vreg */
971 MONO_INST_NEW (cfg, tree, OP_LOCAL);
972 tree->dreg = inst->dreg + 1;
973 if (cfg->opt & MONO_OPT_SSA)
974 tree->flags = MONO_INST_VOLATILE;
975 tree->inst_c0 = num;
976 tree->type = STACK_I4;
977 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
978 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
979
980 set_vreg_to_inst (cfg, inst->dreg + 1, tree);
981
982 /* Allocate a dummy MonoInst for the second vreg */
983 MONO_INST_NEW (cfg, tree, OP_LOCAL);
984 tree->dreg = inst->dreg + 2;
985 if (cfg->opt & MONO_OPT_SSA)
986 tree->flags = MONO_INST_VOLATILE;
987 tree->inst_c0 = num;
988 tree->type = STACK_I4;
989 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
990 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
991
992 set_vreg_to_inst (cfg, inst->dreg + 2, tree);
993 }
994
995 cfg->num_varinfo++;
996 if (cfg->verbose_level > 2)
997 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
998 return inst;
999 }
1000
1001 MonoInst*
1002 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
1003 {
1004 int dreg;
1005
1006 if (mono_type_is_long (type))
1007 dreg = mono_alloc_dreg (cfg, STACK_I8);
1008 #ifdef MONO_ARCH_SOFT_FLOAT
1009 else if (mono_type_is_float (type))
1010 dreg = mono_alloc_dreg (cfg, STACK_R8);
1011 #endif
1012 else
1013 /* All the others are unified */
1014 dreg = mono_alloc_preg (cfg);
1015
1016 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
1017 }
1018
1019 /*
1020 * Transform a MonoInst into a load from the variable of index var_index.
1021 */
1022 void
1023 mono_compile_make_var_load (MonoCompile *cfg, MonoInst *dest, gssize var_index) {
1024 memset (dest, 0, sizeof (MonoInst));
1025 dest->inst_i0 = cfg->varinfo [var_index];
1026 dest->opcode = mini_type_to_ldind (cfg, dest->inst_i0->inst_vtype);
1027 type_to_eval_stack_type (cfg, dest->inst_i0->inst_vtype, dest);
1028 dest->klass = dest->inst_i0->klass;
1029 }
1030
1031 #endif
1032
1033 static MonoType*
1034 type_from_stack_type (MonoInst *ins) {
1035 switch (ins->type) {
1036 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
1037 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
1038 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
1039 case STACK_R8: return &mono_defaults.double_class->byval_arg;
1040 case STACK_MP:
1041 /*
1042 * this if used to be commented without any specific reason, but
1043 * it breaks #80235 when commented
1044 */
1045 if (ins->klass)
1046 return &ins->klass->this_arg;
1047 else
1048 return &mono_defaults.object_class->this_arg;
1049 case STACK_OBJ:
1050 /* ins->klass may not be set for ldnull.
1051 * Also, if we have a boxed valuetype, we want an object lass,
1052 * not the valuetype class
1053 */
1054 if (ins->klass && !ins->klass->valuetype)
1055 return &ins->klass->byval_arg;
1056 return &mono_defaults.object_class->byval_arg;
1057 case STACK_VTYPE: return &ins->klass->byval_arg;
1058 default:
1059 g_error ("stack type %d to montype not handled\n", ins->type);
1060 }
1061 return NULL;
1062 }
1063
1064 MonoType*
1065 mono_type_from_stack_type (MonoInst *ins) {
1066 return type_from_stack_type (ins);
1067 }
1068
1069 /*
1070 * mono_add_ins_to_end:
1071 *
1072 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
1073 */
1074 void
1075 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
1076 {
1077 int opcode;
1078
1079 if (!bb->code) {
1080 MONO_ADD_INS (bb, inst);
1081 return;
1082 }
1083
1084 switch (bb->last_ins->opcode) {
1085 case OP_BR:
1086 case OP_BR_REG:
1087 case CEE_BEQ:
1088 case CEE_BGE:
1089 case CEE_BGT:
1090 case CEE_BLE:
1091 case CEE_BLT:
1092 case CEE_BNE_UN:
1093 case CEE_BGE_UN:
1094 case CEE_BGT_UN:
1095 case CEE_BLE_UN:
1096 case CEE_BLT_UN:
1097 case OP_SWITCH:
1098 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1099 break;
1100 default:
1101 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
1102 /* Need to insert the ins before the compare */
1103 if (bb->code == bb->last_ins) {
1104 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1105 return;
1106 }
1107
1108 if (bb->code->next == bb->last_ins) {
1109 /* Only two instructions */
1110 opcode = bb->code->opcode;
1111
1112 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)) {
1113 /* NEW IR */
1114 mono_bblock_insert_before_ins (bb, bb->code, inst);
1115 } else {
1116 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1117 }
1118 } else {
1119 opcode = bb->last_ins->prev->opcode;
1120
1121 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)) {
1122 /* NEW IR */
1123 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
1124 } else {
1125 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1126 }
1127 }
1128 }
1129 else
1130 MONO_ADD_INS (bb, inst);
1131 break;
1132 }
1133 }
1134
1135 void
1136 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1137 {
1138 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1139 MonoJumpInfoBBTable *table;
1140
1141 table = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
1142 table->table = bbs;
1143 table->table_size = num_blocks;
1144
1145 ji->ip.label = label;
1146 ji->type = MONO_PATCH_INFO_SWITCH;
1147 ji->data.table = table;
1148 ji->next = cfg->patch_info;
1149 cfg->patch_info = ji;
1150 }
1151
1152 static MonoMethodSignature *
1153 mono_get_array_new_va_signature (int arity)
1154 {
1155 static GHashTable *sighash = NULL;
1156 MonoMethodSignature *res;
1157 int i;
1158
1159 mono_jit_lock ();
1160 if (!sighash) {
1161 sighash = g_hash_table_new (NULL, NULL);
1162 }
1163 else if ((res = g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
1164 mono_jit_unlock ();
1165 return res;
1166 }
1167
1168 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
1169
1170 res->pinvoke = 1;
1171 #ifdef MONO_ARCH_VARARG_ICALLS
1172 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
1173 res->call_convention = MONO_CALL_VARARG;
1174 #endif
1175
1176 #ifdef TARGET_WIN32
1177 res->call_convention = MONO_CALL_C;
1178 #endif
1179
1180 res->params [0] = &mono_defaults.int_class->byval_arg;
1181 for (i = 0; i < arity; i++)
1182 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
1183
1184 res->ret = &mono_defaults.object_class->byval_arg;
1185
1186 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
1187 mono_jit_unlock ();
1188
1189 return res;
1190 }
1191
1192 MonoJitICallInfo *
1193 mono_get_array_new_va_icall (int rank)
1194 {
1195 MonoMethodSignature *esig;
1196 char icall_name [256];
1197 char *name;
1198 MonoJitICallInfo *info;
1199
1200 /* Need to register the icall so it gets an icall wrapper */
1201 sprintf (icall_name, "ves_array_new_va_%d", rank);
1202
1203 mono_jit_lock ();
1204 info = mono_find_jit_icall_by_name (icall_name);
1205 if (info == NULL) {
1206 esig = mono_get_array_new_va_signature (rank);
1207 name = g_strdup (icall_name);
1208 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
1209
1210 g_hash_table_insert (jit_icall_name_hash, name, name);
1211 }
1212 mono_jit_unlock ();
1213
1214 return info;
1215 }
1216
1217 gboolean
1218 mini_class_is_system_array (MonoClass *klass)
1219 {
1220 if (klass->parent == mono_defaults.array_class)
1221 return TRUE;
1222 else
1223 return FALSE;
1224 }
1225
1226 gboolean
1227 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1228 {
1229 MonoAssembly *assembly = method->klass->image->assembly;
1230 if (method->wrapper_type != MONO_WRAPPER_NONE)
1231 return FALSE;
1232 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1233 return FALSE;
1234 if (mono_security_get_mode () != MONO_SECURITY_MODE_NONE)
1235 return FALSE;
1236 return mono_assembly_has_skip_verification (assembly);
1237 }
1238
1239 /*
1240 * mini_method_verify:
1241 *
1242 * Verify the method using the new verfier.
1243 *
1244 * Returns true if the method is invalid.
1245 */
1246 gboolean
1247 mini_method_verify (MonoCompile *cfg, MonoMethod *method)
1248 {
1249 GSList *tmp, *res;
1250 gboolean is_fulltrust;
1251 MonoLoaderError *error;
1252
1253 if (method->verification_success)
1254 return FALSE;
1255
1256 is_fulltrust = mono_verifier_is_method_full_trust (method);
1257
1258 if (!mono_verifier_is_enabled_for_method (method))
1259 return FALSE;
1260
1261 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility);
1262
1263 if ((error = mono_loader_get_last_error ())) {
1264 cfg->exception_type = error->exception_type;
1265 if (res)
1266 mono_free_verify_list (res);
1267 return TRUE;
1268 }
1269
1270 if (res) {
1271 for (tmp = res; tmp; tmp = tmp->next) {
1272 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1273 if (info->info.status == MONO_VERIFY_ERROR) {
1274 char *method_name = mono_method_full_name (method, TRUE);
1275 cfg->exception_type = info->exception_type;
1276 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1277 mono_free_verify_list (res);
1278 g_free (method_name);
1279 return TRUE;
1280 }
1281 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1282 char *method_name = mono_method_full_name (method, TRUE);
1283 cfg->exception_type = info->exception_type;
1284 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1285 mono_free_verify_list (res);
1286 g_free (method_name);
1287 return TRUE;
1288 }
1289 }
1290 mono_free_verify_list (res);
1291 }
1292 method->verification_success = 1;
1293 return FALSE;
1294 }
1295
1296 /*Returns true is something went wrong*/
1297 static gboolean
1298 mono_compile_is_broken (MonoCompile *cfg)
1299 {
1300 MonoMethod *method = cfg->method;
1301 MonoMethod *method_definition = method;
1302 gboolean dont_verify = mini_assembly_can_skip_verification (cfg->domain, method);
1303 dont_verify |= method->klass->image->assembly->corlib_internal;
1304
1305 while (method_definition->is_inflated) {
1306 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1307 method_definition = imethod->declaring;
1308 }
1309
1310 return !dont_verify && mini_method_verify (cfg, method_definition);
1311 }
1312
1313 static void
1314 create_helper_signature (void)
1315 {
1316 helper_sig_domain_get = mono_create_icall_signature ("ptr");
1317 helper_sig_class_init_trampoline = mono_create_icall_signature ("void");
1318 helper_sig_generic_class_init_trampoline = mono_create_icall_signature ("void");
1319 helper_sig_rgctx_lazy_fetch_trampoline = mono_create_icall_signature ("ptr ptr");
1320 helper_sig_monitor_enter_exit_trampoline = mono_create_icall_signature ("void");
1321 helper_sig_monitor_enter_exit_trampoline_llvm = mono_create_icall_signature ("void object");
1322 }
1323
1324 static gconstpointer
1325 mono_icall_get_wrapper_full (MonoJitICallInfo* callinfo, gboolean do_compile)
1326 {
1327 char *name;
1328 MonoMethod *wrapper;
1329 gconstpointer trampoline;
1330 MonoDomain *domain = mono_get_root_domain ();
1331
1332 if (callinfo->wrapper) {
1333 return callinfo->wrapper;
1334 }
1335
1336 if (callinfo->trampoline)
1337 return callinfo->trampoline;
1338
1339 /*
1340 * We use the lock on the root domain instead of the JIT lock to protect
1341 * callinfo->trampoline, since we do a lot of stuff inside the critical section.
1342 */
1343 mono_loader_lock (); /*FIXME mono_compile_method requires the loader lock, by large.*/
1344 mono_domain_lock (domain);
1345
1346 if (callinfo->trampoline) {
1347 mono_domain_unlock (domain);
1348 mono_loader_unlock ();
1349 return callinfo->trampoline;
1350 }
1351
1352 name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
1353 wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func, check_for_pending_exc);
1354 g_free (name);
1355
1356 if (do_compile)
1357 trampoline = mono_compile_method (wrapper);
1358 else
1359 trampoline = mono_create_ftnptr (domain, mono_create_jit_trampoline_in_domain (domain, wrapper));
1360 mono_register_jit_icall_wrapper (callinfo, trampoline);
1361
1362 callinfo->trampoline = trampoline;
1363
1364 mono_domain_unlock (domain);
1365 mono_loader_unlock ();
1366
1367 return callinfo->trampoline;
1368 }
1369
1370 gconstpointer
1371 mono_icall_get_wrapper (MonoJitICallInfo* callinfo)
1372 {
1373 return mono_icall_get_wrapper_full (callinfo, FALSE);
1374 }
1375
1376 static void
1377 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1378 {
1379 if (!domain_jit_info (domain)->dynamic_code_hash)
1380 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1381 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1382 }
1383
1384 static MonoJitDynamicMethodInfo*
1385 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1386 {
1387 MonoJitDynamicMethodInfo *res;
1388
1389 if (domain_jit_info (domain)->dynamic_code_hash)
1390 res = g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1391 else
1392 res = NULL;
1393 return res;
1394 }
1395
1396 typedef struct {
1397 MonoClass *vtype;
1398 GList *active, *inactive;
1399 GSList *slots;
1400 } StackSlotInfo;
1401
1402 static gint
1403 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1404 {
1405 MonoMethodVar *v1 = (MonoMethodVar*)a;
1406 MonoMethodVar *v2 = (MonoMethodVar*)b;
1407
1408 if (v1 == v2)
1409 return 0;
1410 else if (v1->interval->range && v2->interval->range)
1411 return v1->interval->range->from - v2->interval->range->from;
1412 else if (v1->interval->range)
1413 return -1;
1414 else
1415 return 1;
1416 }
1417
1418 #ifndef DISABLE_JIT
1419
1420 #if 0
1421 #define LSCAN_DEBUG(a) do { a; } while (0)
1422 #else
1423 #define LSCAN_DEBUG(a)
1424 #endif
1425
1426 static gint32*
1427 mono_allocate_stack_slots_full2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1428 {
1429 int i, slot, offset, size;
1430 guint32 align;
1431 MonoMethodVar *vmv;
1432 MonoInst *inst;
1433 gint32 *offsets;
1434 GList *vars = NULL, *l, *unhandled;
1435 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1436 MonoType *t;
1437 int nvtypes;
1438 gboolean reuse_slot;
1439
1440 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1441
1442 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1443 vtype_stack_slots = NULL;
1444 nvtypes = 0;
1445
1446 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1447 for (i = 0; i < cfg->num_varinfo; ++i)
1448 offsets [i] = -1;
1449
1450 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1451 inst = cfg->varinfo [i];
1452 vmv = MONO_VARINFO (cfg, i);
1453
1454 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1455 continue;
1456
1457 vars = g_list_prepend (vars, vmv);
1458 }
1459
1460 vars = g_list_sort (g_list_copy (vars), compare_by_interval_start_pos_func);
1461
1462 /* Sanity check */
1463 /*
1464 i = 0;
1465 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1466 MonoMethodVar *current = unhandled->data;
1467
1468 if (current->interval->range) {
1469 g_assert (current->interval->range->from >= i);
1470 i = current->interval->range->from;
1471 }
1472 }
1473 */
1474
1475 offset = 0;
1476 *stack_align = 0;
1477 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1478 MonoMethodVar *current = unhandled->data;
1479
1480 vmv = current;
1481 inst = cfg->varinfo [vmv->idx];
1482
1483 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1484 * pinvoke wrappers when they call functions returning structures */
1485 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype) && inst->inst_vtype->type != MONO_TYPE_TYPEDBYREF) {
1486 size = mono_class_native_size (mono_class_from_mono_type (inst->inst_vtype), &align);
1487 }
1488 else {
1489 int ialign;
1490
1491 size = mono_type_size (inst->inst_vtype, &ialign);
1492 align = ialign;
1493
1494 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (inst->inst_vtype)))
1495 align = 16;
1496 }
1497
1498 reuse_slot = TRUE;
1499 if (cfg->disable_reuse_stack_slots)
1500 reuse_slot = FALSE;
1501
1502 t = mono_type_get_underlying_type (inst->inst_vtype);
1503 switch (t->type) {
1504 case MONO_TYPE_GENERICINST:
1505 if (!mono_type_generic_inst_is_valuetype (t)) {
1506 slot_info = &scalar_stack_slots [t->type];
1507 break;
1508 }
1509 /* Fall through */
1510 case MONO_TYPE_VALUETYPE:
1511 if (!vtype_stack_slots)
1512 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1513 for (i = 0; i < nvtypes; ++i)
1514 if (t->data.klass == vtype_stack_slots [i].vtype)
1515 break;
1516 if (i < nvtypes)
1517 slot_info = &vtype_stack_slots [i];
1518 else {
1519 g_assert (nvtypes < 256);
1520 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1521 slot_info = &vtype_stack_slots [nvtypes];
1522 nvtypes ++;
1523 }
1524 if (cfg->disable_reuse_ref_stack_slots)
1525 reuse_slot = FALSE;
1526 break;
1527
1528 case MONO_TYPE_PTR:
1529 case MONO_TYPE_I:
1530 case MONO_TYPE_U:
1531 #if SIZEOF_REGISTER == 4
1532 case MONO_TYPE_I4:
1533 #else
1534 case MONO_TYPE_I8:
1535 #endif
1536 #ifdef HAVE_SGEN_GC
1537 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1538 break;
1539 #else
1540 /* Fall through */
1541 #endif
1542
1543 case MONO_TYPE_CLASS:
1544 case MONO_TYPE_OBJECT:
1545 case MONO_TYPE_ARRAY:
1546 case MONO_TYPE_SZARRAY:
1547 case MONO_TYPE_STRING:
1548 /* Share non-float stack slots of the same size */
1549 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1550 if (cfg->disable_reuse_ref_stack_slots)
1551 reuse_slot = FALSE;
1552 break;
1553
1554 default:
1555 slot_info = &scalar_stack_slots [t->type];
1556 }
1557
1558 slot = 0xffffff;
1559 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1560 int pos;
1561 gboolean changed;
1562
1563 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1564
1565 if (!current->interval->range) {
1566 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1567 pos = ~0;
1568 else {
1569 /* Dead */
1570 inst->flags |= MONO_INST_IS_DEAD;
1571 continue;
1572 }
1573 }
1574 else
1575 pos = current->interval->range->from;
1576
1577 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1578 if (current->interval->range)
1579 LSCAN_DEBUG (mono_linterval_print (current->interval));
1580 LSCAN_DEBUG (printf ("\n"));
1581
1582 /* Check for intervals in active which expired or inactive */
1583 changed = TRUE;
1584 /* FIXME: Optimize this */
1585 while (changed) {
1586 changed = FALSE;
1587 for (l = slot_info->active; l != NULL; l = l->next) {
1588 MonoMethodVar *v = (MonoMethodVar*)l->data;
1589
1590 if (v->interval->last_range->to < pos) {
1591 slot_info->active = g_list_delete_link (slot_info->active, l);
1592 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1593 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1594 changed = TRUE;
1595 break;
1596 }
1597 else if (!mono_linterval_covers (v->interval, pos)) {
1598 slot_info->inactive = g_list_append (slot_info->inactive, v);
1599 slot_info->active = g_list_delete_link (slot_info->active, l);
1600 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1601 changed = TRUE;
1602 break;
1603 }
1604 }
1605 }
1606
1607 /* Check for intervals in inactive which expired or active */
1608 changed = TRUE;
1609 /* FIXME: Optimize this */
1610 while (changed) {
1611 changed = FALSE;
1612 for (l = slot_info->inactive; l != NULL; l = l->next) {
1613 MonoMethodVar *v = (MonoMethodVar*)l->data;
1614
1615 if (v->interval->last_range->to < pos) {
1616 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1617 // FIXME: Enabling this seems to cause impossible to debug crashes
1618 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1619 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1620 changed = TRUE;
1621 break;
1622 }
1623 else if (mono_linterval_covers (v->interval, pos)) {
1624 slot_info->active = g_list_append (slot_info->active, v);
1625 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1626 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1627 changed = TRUE;
1628 break;
1629 }
1630 }
1631 }
1632
1633 /*
1634 * This also handles the case when the variable is used in an
1635 * exception region, as liveness info is not computed there.
1636 */
1637 /*
1638 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1639 * opcodes.
1640 */
1641 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1642 if (slot_info->slots) {
1643 slot = GPOINTER_TO_INT (slot_info->slots->data);
1644
1645 slot_info->slots = slot_info->slots->next;
1646 }
1647
1648 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1649
1650 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1651 }
1652 }
1653
1654 #if 0
1655 {
1656 static int count = 0;
1657 count ++;
1658
1659 if (count == atoi (getenv ("COUNT3")))
1660 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1661 if (count > atoi (getenv ("COUNT3")))
1662 slot = 0xffffff;
1663 else {
1664 mono_print_ins (inst);
1665 }
1666 }
1667 #endif
1668
1669 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1670
1671 if (!reuse_slot)
1672 slot = 0xffffff;
1673
1674 if (slot == 0xffffff) {
1675 /*
1676 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1677 * efficient copying (and to work around the fact that OP_MEMCPY
1678 * and OP_MEMSET ignores alignment).
1679 */
1680 if (MONO_TYPE_ISSTRUCT (t)) {
1681 align = MAX (align, sizeof (gpointer));
1682 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1683 }
1684
1685 if (backward) {
1686 offset += size;
1687 offset += align - 1;
1688 offset &= ~(align - 1);
1689 slot = offset;
1690 }
1691 else {
1692 offset += align - 1;
1693 offset &= ~(align - 1);
1694 slot = offset;
1695 offset += size;
1696 }
1697
1698 if (*stack_align == 0)
1699 *stack_align = align;
1700 }
1701
1702 offsets [vmv->idx] = slot;
1703 }
1704 g_list_free (vars);
1705 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1706 if (scalar_stack_slots [i].active)
1707 g_list_free (scalar_stack_slots [i].active);
1708 }
1709 for (i = 0; i < nvtypes; ++i) {
1710 if (vtype_stack_slots [i].active)
1711 g_list_free (vtype_stack_slots [i].active);
1712 }
1713
1714 mono_jit_stats.locals_stack_size += offset;
1715
1716 *stack_size = offset;
1717 return offsets;
1718 }
1719
1720 /*
1721 * mono_allocate_stack_slots_full:
1722 *
1723 * Allocate stack slots for all non register allocated variables using a
1724 * linear scan algorithm.
1725 * Returns: an array of stack offsets.
1726 * STACK_SIZE is set to the amount of stack space needed.
1727 * STACK_ALIGN is set to the alignment needed by the locals area.
1728 */
1729 gint32*
1730 mono_allocate_stack_slots_full (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1731 {
1732 int i, slot, offset, size;
1733 guint32 align;
1734 MonoMethodVar *vmv;
1735 MonoInst *inst;
1736 gint32 *offsets;
1737 GList *vars = NULL, *l;
1738 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1739 MonoType *t;
1740 int nvtypes;
1741 gboolean reuse_slot;
1742
1743 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1744 return mono_allocate_stack_slots_full2 (cfg, backward, stack_size, stack_align);
1745
1746 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1747 vtype_stack_slots = NULL;
1748 nvtypes = 0;
1749
1750 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1751 for (i = 0; i < cfg->num_varinfo; ++i)
1752 offsets [i] = -1;
1753
1754 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1755 inst = cfg->varinfo [i];
1756 vmv = MONO_VARINFO (cfg, i);
1757
1758 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1759 continue;
1760
1761 vars = g_list_prepend (vars, vmv);
1762 }
1763
1764 vars = mono_varlist_sort (cfg, vars, 0);
1765 offset = 0;
1766 *stack_align = sizeof (gpointer);
1767 for (l = vars; l; l = l->next) {
1768 vmv = l->data;
1769 inst = cfg->varinfo [vmv->idx];
1770
1771 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1772 * pinvoke wrappers when they call functions returning structures */
1773 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (inst->inst_vtype) && inst->inst_vtype->type != MONO_TYPE_TYPEDBYREF) {
1774 size = mono_class_native_size (mono_class_from_mono_type (inst->inst_vtype), &align);
1775 } else {
1776 int ialign;
1777
1778 size = mono_type_size (inst->inst_vtype, &ialign);
1779 align = ialign;
1780
1781 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (inst->inst_vtype)))
1782 align = 16;
1783 }
1784
1785 reuse_slot = TRUE;
1786 if (cfg->disable_reuse_stack_slots)
1787 reuse_slot = FALSE;
1788
1789 t = mono_type_get_underlying_type (inst->inst_vtype);
1790 if (t->byref) {
1791 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1792 } else {
1793 switch (t->type) {
1794 case MONO_TYPE_GENERICINST:
1795 if (!mono_type_generic_inst_is_valuetype (t)) {
1796 slot_info = &scalar_stack_slots [t->type];
1797 break;
1798 }
1799 /* Fall through */
1800 case MONO_TYPE_VALUETYPE:
1801 if (!vtype_stack_slots)
1802 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1803 for (i = 0; i < nvtypes; ++i)
1804 if (t->data.klass == vtype_stack_slots [i].vtype)
1805 break;
1806 if (i < nvtypes)
1807 slot_info = &vtype_stack_slots [i];
1808 else {
1809 g_assert (nvtypes < 256);
1810 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1811 slot_info = &vtype_stack_slots [nvtypes];
1812 nvtypes ++;
1813 }
1814 if (cfg->disable_reuse_ref_stack_slots)
1815 reuse_slot = FALSE;
1816 break;
1817
1818 case MONO_TYPE_PTR:
1819 case MONO_TYPE_I:
1820 case MONO_TYPE_U:
1821 #if SIZEOF_REGISTER == 4
1822 case MONO_TYPE_I4:
1823 #else
1824 case MONO_TYPE_I8:
1825 #endif
1826 #ifdef HAVE_SGEN_GC
1827 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1828 break;
1829 #else
1830 /* Fall through */
1831 #endif
1832
1833 case MONO_TYPE_CLASS:
1834 case MONO_TYPE_OBJECT:
1835 case MONO_TYPE_ARRAY:
1836 case MONO_TYPE_SZARRAY:
1837 case MONO_TYPE_STRING:
1838 /* Share non-float stack slots of the same size */
1839 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1840 if (cfg->disable_reuse_ref_stack_slots)
1841 reuse_slot = FALSE;
1842 break;
1843
1844 default:
1845 slot_info = &scalar_stack_slots [t->type];
1846 }
1847 }
1848
1849 slot = 0xffffff;
1850 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1851 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1852
1853 /* expire old intervals in active */
1854 while (slot_info->active) {
1855 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1856
1857 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1858 break;
1859
1860 //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);
1861
1862 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1863 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1864 }
1865
1866 /*
1867 * This also handles the case when the variable is used in an
1868 * exception region, as liveness info is not computed there.
1869 */
1870 /*
1871 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1872 * opcodes.
1873 */
1874 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1875 if (slot_info->slots) {
1876 slot = GPOINTER_TO_INT (slot_info->slots->data);
1877
1878 slot_info->slots = slot_info->slots->next;
1879 }
1880
1881 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1882 }
1883 }
1884
1885 {
1886 static int count = 0;
1887 count ++;
1888
1889 /*
1890 if (count == atoi (getenv ("COUNT")))
1891 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1892 if (count > atoi (getenv ("COUNT")))
1893 slot = 0xffffff;
1894 else {
1895 mono_print_ins (inst);
1896 }
1897 */
1898 }
1899
1900 if (!reuse_slot)
1901 slot = 0xffffff;
1902
1903 if (slot == 0xffffff) {
1904 /*
1905 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1906 * efficient copying (and to work around the fact that OP_MEMCPY
1907 * and OP_MEMSET ignores alignment).
1908 */
1909 if (MONO_TYPE_ISSTRUCT (t)) {
1910 align = MAX (align, sizeof (gpointer));
1911 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1912 /*
1913 * Align the size too so the code generated for passing vtypes in
1914 * registers doesn't overwrite random locals.
1915 */
1916 size = (size + (align - 1)) & ~(align -1);
1917 }
1918
1919 if (backward) {
1920 offset += size;
1921 offset += align - 1;
1922 offset &= ~(align - 1);
1923 slot = offset;
1924 }
1925 else {
1926 offset += align - 1;
1927 offset &= ~(align - 1);
1928 slot = offset;
1929 offset += size;
1930 }
1931
1932 *stack_align = MAX (*stack_align, align);
1933 }
1934
1935 offsets [vmv->idx] = slot;
1936 }
1937 g_list_free (vars);
1938 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1939 if (scalar_stack_slots [i].active)
1940 g_list_free (scalar_stack_slots [i].active);
1941 }
1942 for (i = 0; i < nvtypes; ++i) {
1943 if (vtype_stack_slots [i].active)
1944 g_list_free (vtype_stack_slots [i].active);
1945 }
1946
1947 mono_jit_stats.locals_stack_size += offset;
1948
1949 *stack_size = offset;
1950 return offsets;
1951 }
1952
1953 #else
1954
1955 gint32*
1956 mono_allocate_stack_slots_full (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1957 {
1958 g_assert_not_reached ();
1959 return NULL;
1960 }
1961
1962 #endif /* DISABLE_JIT */
1963
1964 gint32*
1965 mono_allocate_stack_slots (MonoCompile *m, guint32 *stack_size, guint32 *stack_align)
1966 {
1967 return mono_allocate_stack_slots_full (m, TRUE, stack_size, stack_align);
1968 }
1969
1970 #define EMUL_HIT_SHIFT 3
1971 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
1972 /* small hit bitmap cache */
1973 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
1974 static short emul_opcode_num = 0;
1975 static short emul_opcode_alloced = 0;
1976 static short *emul_opcode_opcodes = NULL;
1977 static MonoJitICallInfo **emul_opcode_map = NULL;
1978
1979 MonoJitICallInfo *
1980 mono_find_jit_opcode_emulation (int opcode)
1981 {
1982 g_assert (opcode >= 0 && opcode <= OP_LAST);
1983 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
1984 int i;
1985 for (i = 0; i < emul_opcode_num; ++i) {
1986 if (emul_opcode_opcodes [i] == opcode)
1987 return emul_opcode_map [i];
1988 }
1989 }
1990 return NULL;
1991 }
1992
1993 void
1994 mono_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, gboolean no_throw)
1995 {
1996 MonoJitICallInfo *info;
1997 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1998
1999 g_assert (!sig->hasthis);
2000 g_assert (sig->param_count < 3);
2001
2002 info = mono_register_jit_icall (func, name, sig, no_throw);
2003
2004 if (emul_opcode_num >= emul_opcode_alloced) {
2005 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
2006 emul_opcode_alloced += incr;
2007 emul_opcode_map = g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
2008 emul_opcode_opcodes = g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
2009 }
2010 emul_opcode_map [emul_opcode_num] = info;
2011 emul_opcode_opcodes [emul_opcode_num] = opcode;
2012 emul_opcode_num++;
2013 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
2014 }
2015
2016 static void
2017 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
2018 {
2019 MonoMethodSignature *sig;
2020
2021 if (sigstr)
2022 sig = mono_create_icall_signature (sigstr);
2023 else
2024 sig = NULL;
2025
2026 mono_register_jit_icall (func, name, sig, save);
2027 }
2028
2029 static void
2030 print_dfn (MonoCompile *cfg) {
2031 int i, j;
2032 char *code;
2033 MonoBasicBlock *bb;
2034 MonoInst *c;
2035
2036 g_print ("IR code for method %s\n", mono_method_full_name (cfg->method, TRUE));
2037
2038 for (i = 0; i < cfg->num_bblocks; ++i) {
2039 bb = cfg->bblocks [i];
2040 /*if (bb->cil_code) {
2041 char* code1, *code2;
2042 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
2043 if (bb->last_ins->cil_code)
2044 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
2045 else
2046 code2 = g_strdup ("");
2047
2048 code1 [strlen (code1) - 1] = 0;
2049 code = g_strdup_printf ("%s -> %s", code1, code2);
2050 g_free (code1);
2051 g_free (code2);
2052 } else*/
2053 code = g_strdup ("\n");
2054 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
2055 MONO_BB_FOR_EACH_INS (bb, c) {
2056 mono_print_ins_index (-1, c);
2057 }
2058
2059 g_print ("\tprev:");
2060 for (j = 0; j < bb->in_count; ++j) {
2061 g_print (" BB%d", bb->in_bb [j]->block_num);
2062 }
2063 g_print ("\t\tsucc:");
2064 for (j = 0; j < bb->out_count; ++j) {
2065 g_print (" BB%d", bb->out_bb [j]->block_num);
2066 }
2067 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
2068
2069 if (bb->idom)
2070 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
2071
2072 if (bb->dominators)
2073 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
2074 if (bb->dfrontier)
2075 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
2076 g_free (code);
2077 }
2078
2079 g_print ("\n");
2080 }
2081
2082 void
2083 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
2084 {
2085 MONO_ADD_INS (bb, inst);
2086 }
2087
2088 void
2089 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
2090 {
2091 if (ins == NULL) {
2092 ins = bb->code;
2093 bb->code = ins_to_insert;
2094
2095 /* Link with next */
2096 ins_to_insert->next = ins;
2097 if (ins)
2098 ins->prev = ins_to_insert;
2099
2100 if (bb->last_ins == NULL)
2101 bb->last_ins = ins_to_insert;
2102 } else {
2103 /* Link with next */
2104 ins_to_insert->next = ins->next;
2105 if (ins->next)
2106 ins->next->prev = ins_to_insert;
2107
2108 /* Link with previous */
2109 ins->next = ins_to_insert;
2110 ins_to_insert->prev = ins;
2111
2112 if (bb->last_ins == ins)
2113 bb->last_ins = ins_to_insert;
2114 }
2115 }
2116
2117 void
2118 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
2119 {
2120 if (ins == NULL) {
2121 ins = bb->code;
2122 bb->code = ins_to_insert;
2123 ins_to_insert->next = ins;
2124 if (bb->last_ins == NULL)
2125 bb->last_ins = ins_to_insert;
2126 } else {
2127 /* Link with previous */
2128 if (ins->prev)
2129 ins->prev->next = ins_to_insert;
2130 ins_to_insert->prev = ins->prev;
2131
2132 /* Link with next */
2133 ins->prev = ins_to_insert;
2134 ins_to_insert->next = ins;
2135
2136 if (bb->code == ins)
2137 bb->code = ins_to_insert;
2138 }
2139 }
2140
2141 /*
2142 * mono_verify_bblock:
2143 *
2144 * Verify that the next and prev pointers are consistent inside the instructions in BB.
2145 */
2146 void
2147 mono_verify_bblock (MonoBasicBlock *bb)
2148 {
2149 MonoInst *ins, *prev;
2150
2151 prev = NULL;
2152 for (ins = bb->code; ins; ins = ins->next) {
2153 g_assert (ins->prev == prev);
2154 prev = ins;
2155 }
2156 if (bb->last_ins)
2157 g_assert (!bb->last_ins->next);
2158 }
2159
2160 /*
2161 * mono_verify_cfg:
2162 *
2163 * Perform consistency checks on the JIT data structures and the IR
2164 */
2165 void
2166 mono_verify_cfg (MonoCompile *cfg)
2167 {
2168 MonoBasicBlock *bb;
2169
2170 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2171 mono_verify_bblock (bb);
2172 }
2173
2174 void
2175 mono_destroy_compile (MonoCompile *cfg)
2176 {
2177 if (cfg->header)
2178 mono_metadata_free_mh (cfg->header);
2179 //mono_mempool_stats (cfg->mempool);
2180 mono_free_loop_info (cfg);
2181 if (cfg->rs)
2182 mono_regstate_free (cfg->rs);
2183 if (cfg->spvars)
2184 g_hash_table_destroy (cfg->spvars);
2185 if (cfg->exvars)
2186 g_hash_table_destroy (cfg->exvars);
2187 mono_mempool_destroy (cfg->mempool);
2188 g_list_free (cfg->ldstr_list);
2189 g_hash_table_destroy (cfg->token_info_hash);
2190 if (cfg->abs_patches)
2191 g_hash_table_destroy (cfg->abs_patches);
2192
2193 g_free (cfg->varinfo);
2194 g_free (cfg->vars);
2195 g_free (cfg->exception_message);
2196 g_free (cfg);
2197 }
2198
2199 #ifdef HAVE_KW_THREAD
2200 static __thread gpointer mono_lmf_addr MONO_TLS_FAST;
2201 #ifdef MONO_ARCH_ENABLE_MONO_LMF_VAR
2202 /*
2203 * When this is defined, the current lmf is stored in this tls variable instead of in
2204 * jit_tls->lmf.
2205 */
2206 static __thread gpointer mono_lmf MONO_TLS_FAST;
2207 #endif
2208 #endif
2209
2210 guint32
2211 mono_get_jit_tls_key (void)
2212 {
2213 return mono_jit_tls_id;
2214 }
2215
2216 gint32
2217 mono_get_jit_tls_offset (void)
2218 {
2219 #ifdef HAVE_KW_THREAD
2220 int offset;
2221 MONO_THREAD_VAR_OFFSET (mono_jit_tls, offset);
2222 return offset;
2223 #else
2224 return -1;
2225 #endif
2226 }
2227
2228 gint32
2229 mono_get_lmf_tls_offset (void)
2230 {
2231 #if defined(HAVE_KW_THREAD) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2232 int offset;
2233 MONO_THREAD_VAR_OFFSET(mono_lmf,offset);
2234 return offset;
2235 #else
2236 return -1;
2237 #endif
2238 }
2239
2240 gint32
2241 mono_get_lmf_addr_tls_offset (void)
2242 {
2243 int offset;
2244 MONO_THREAD_VAR_OFFSET(mono_lmf_addr,offset);
2245 return offset;
2246 }
2247
2248 MonoLMF *
2249 mono_get_lmf (void)
2250 {
2251 #if defined(HAVE_KW_THREAD) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2252 return mono_lmf;
2253 #else
2254 MonoJitTlsData *jit_tls;
2255
2256 if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
2257 return jit_tls->lmf;
2258
2259 g_assert_not_reached ();
2260 return NULL;
2261 #endif
2262 }
2263
2264 MonoLMF **
2265 mono_get_lmf_addr (void)
2266 {
2267 #ifdef HAVE_KW_THREAD
2268 return mono_lmf_addr;
2269 #else
2270 MonoJitTlsData *jit_tls;
2271
2272 if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
2273 return &jit_tls->lmf;
2274
2275 /*
2276 * When resolving the call to mono_jit_thread_attach full-aot will look
2277 * in the plt, which causes a call into the generic trampoline, which in turn
2278 * tries to resolve the lmf_addr creating a cyclic dependency. We cannot
2279 * call mono_jit_thread_attach from the native-to-managed wrapper, without
2280 * mono_get_lmf_addr, and mono_get_lmf_addr requires the thread to be attached.
2281 */
2282
2283 mono_jit_thread_attach (NULL);
2284
2285 if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
2286 return &jit_tls->lmf;
2287
2288 g_assert_not_reached ();
2289 return NULL;
2290 #endif
2291 }
2292
2293 void
2294 mono_set_lmf (MonoLMF *lmf)
2295 {
2296 #if defined(HAVE_KW_THREAD) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2297 mono_lmf = lmf;
2298 #endif
2299
2300 (*mono_get_lmf_addr ()) = lmf;
2301 }
2302
2303 /* Called by native->managed wrappers */
2304 void
2305 mono_jit_thread_attach (MonoDomain *domain)
2306 {
2307 if (!domain)
2308 /*
2309 * Happens when called from AOTed code which is only used in the root
2310 * domain.
2311 */
2312 domain = mono_get_root_domain ();
2313
2314 #ifdef HAVE_KW_THREAD
2315 if (!mono_lmf_addr) {
2316 mono_thread_attach (domain);
2317 }
2318 #else
2319 if (!TlsGetValue (mono_jit_tls_id))
2320 mono_thread_attach (domain);
2321 #endif
2322 if (mono_domain_get () != domain)
2323 mono_domain_set (domain, TRUE);
2324 }
2325
2326 /**
2327 * mono_thread_abort:
2328 * @obj: exception object
2329 *
2330 * abort the thread, print exception information and stack trace
2331 */
2332 static void
2333 mono_thread_abort (MonoObject *obj)
2334 {
2335 /* MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id); */
2336
2337 /* handle_remove should be eventually called for this thread, too
2338 g_free (jit_tls);*/
2339
2340 if ((mono_runtime_unhandled_exception_policy_get () == MONO_UNHANDLED_POLICY_LEGACY) ||
2341 (obj->vtable->klass == mono_defaults.threadabortexception_class)) {
2342 mono_thread_exit ();
2343 } else {
2344 exit (mono_environment_exitcode_get ());
2345 }
2346 }
2347
2348 static void*
2349 setup_jit_tls_data (gpointer stack_start, gpointer abort_func)
2350 {
2351 MonoJitTlsData *jit_tls;
2352 MonoLMF *lmf;
2353
2354 jit_tls = TlsGetValue (mono_jit_tls_id);
2355 if (jit_tls)
2356 return jit_tls;
2357
2358 jit_tls = g_new0 (MonoJitTlsData, 1);
2359
2360 TlsSetValue (mono_jit_tls_id, jit_tls);
2361
2362 #ifdef HAVE_KW_THREAD
2363 mono_jit_tls = jit_tls;
2364 #endif
2365
2366 jit_tls->abort_func = abort_func;
2367 jit_tls->end_of_stack = stack_start;
2368
2369 lmf = g_new0 (MonoLMF, 1);
2370 #ifdef MONO_ARCH_INIT_TOP_LMF_ENTRY
2371 MONO_ARCH_INIT_TOP_LMF_ENTRY (lmf);
2372 #else
2373 lmf->ebp = -1;
2374 #endif
2375
2376 jit_tls->first_lmf = lmf;
2377
2378 #if defined(HAVE_KW_THREAD) && defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2379 /* jit_tls->lmf is unused */
2380 mono_lmf = lmf;
2381 mono_lmf_addr = &mono_lmf;
2382 #else
2383 #if defined(HAVE_KW_THREAD)
2384 mono_lmf_addr = &jit_tls->lmf;
2385 #endif
2386
2387 jit_tls->lmf = lmf;
2388 #endif
2389
2390 mono_arch_setup_jit_tls_data (jit_tls);
2391 mono_setup_altstack (jit_tls);
2392
2393 return jit_tls;
2394 }
2395
2396 static void
2397 mono_thread_start_cb (intptr_t tid, gpointer stack_start, gpointer func)
2398 {
2399 MonoInternalThread *thread;
2400 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort);
2401 thread = mono_thread_internal_current ();
2402 mono_debugger_thread_created (tid, thread->root_domain_thread, jit_tls, func);
2403 if (thread)
2404 thread->jit_data = jit_tls;
2405 }
2406
2407 void (*mono_thread_attach_aborted_cb ) (MonoObject *obj) = NULL;
2408
2409 static void
2410 mono_thread_abort_dummy (MonoObject *obj)
2411 {
2412 if (mono_thread_attach_aborted_cb)
2413 mono_thread_attach_aborted_cb (obj);
2414 else
2415 mono_thread_abort (obj);
2416 }
2417
2418 static void
2419 mono_thread_attach_cb (intptr_t tid, gpointer stack_start)
2420 {
2421 MonoInternalThread *thread;
2422 void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort_dummy);
2423 thread = mono_thread_internal_current ();
2424 mono_debugger_thread_created (tid, thread->root_domain_thread, (MonoJitTlsData *) jit_tls, NULL);
2425 if (thread)
2426 thread->jit_data = jit_tls;
2427 if (mono_profiler_get_events () & MONO_PROFILE_STATISTICAL)
2428 mono_runtime_setup_stat_profiler ();
2429 }
2430
2431 static void
2432 mini_thread_cleanup (MonoThread *thread)
2433 {
2434 MonoInternalThread *internal = thread->internal_thread;
2435 MonoJitTlsData *jit_tls = internal->jit_data;
2436
2437 if (jit_tls) {
2438 mono_debugger_thread_cleanup (jit_tls);
2439 mono_arch_free_jit_tls_data (jit_tls);
2440
2441 mono_free_altstack (jit_tls);
2442 g_free (jit_tls->first_lmf);
2443 g_free (jit_tls);
2444 internal->jit_data = NULL;
2445
2446 /* We can't clean up tls information if we are on another thread, it will clean up the wrong stuff
2447 * It would be nice to issue a warning when this happens outside of the shutdown sequence. but it's
2448 * not a trivial thing.
2449 *
2450 * The current offender is mono_thread_manage which cleanup threads from the outside.
2451 */
2452 if (internal == mono_thread_internal_current ()) {
2453 TlsSetValue (mono_jit_tls_id, NULL);
2454
2455 #ifdef HAVE_KW_THREAD
2456 mono_jit_tls = NULL;
2457 mono_lmf_addr = NULL;
2458 #if defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
2459 mono_lmf = NULL;
2460 #endif
2461 #endif
2462 }
2463 }
2464 }
2465
2466 static MonoInst*
2467 mono_create_tls_get (MonoCompile *cfg, int offset)
2468 {
2469 #ifdef MONO_ARCH_HAVE_TLS_GET
2470 if (MONO_ARCH_HAVE_TLS_GET) {
2471 MonoInst* ins;
2472
2473 if (offset == -1)
2474 return NULL;
2475
2476 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
2477 ins->dreg = mono_alloc_preg (cfg);
2478 ins->inst_offset = offset;
2479 return ins;
2480 }
2481 #endif
2482 return NULL;
2483 }
2484
2485 MonoInst*
2486 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
2487 {
2488 return mono_create_tls_get (cfg, mono_get_jit_tls_offset ());
2489 }
2490
2491 MonoInst*
2492 mono_get_domain_intrinsic (MonoCompile* cfg)
2493 {
2494 return mono_create_tls_get (cfg, mono_domain_get_tls_offset ());
2495 }
2496
2497 MonoInst*
2498 mono_get_thread_intrinsic (MonoCompile* cfg)
2499 {
2500 return mono_create_tls_get (cfg, mono_thread_get_tls_offset ());
2501 }
2502
2503 void
2504 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2505 {
2506 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
2507
2508 ji->ip.i = ip;
2509 ji->type = type;
2510 ji->data.target = target;
2511 ji->next = cfg->patch_info;
2512
2513 cfg->patch_info = ji;
2514 }
2515
2516 MonoJumpInfo *
2517 mono_patch_info_list_prepend (MonoJumpInfo *list, int ip, MonoJumpInfoType type, gconstpointer target)
2518 {
2519 MonoJumpInfo *ji = g_new0 (MonoJumpInfo, 1);
2520
2521 ji->ip.i = ip;
2522 ji->type = type;
2523 ji->data.target = target;
2524 ji->next = list;
2525
2526 return ji;
2527 }
2528
2529 void
2530 mono_remove_patch_info (MonoCompile *cfg, int ip)
2531 {
2532 MonoJumpInfo **ji = &cfg->patch_info;
2533
2534 while (*ji) {
2535 if ((*ji)->ip.i == ip)
2536 *ji = (*ji)->next;
2537 else
2538 ji = &((*ji)->next);
2539 }
2540 }
2541
2542 /**
2543 * mono_patch_info_dup_mp:
2544 *
2545 * Make a copy of PATCH_INFO, allocating memory from the mempool MP.
2546 */
2547 MonoJumpInfo*
2548 mono_patch_info_dup_mp (MonoMemPool *mp, MonoJumpInfo *patch_info)
2549 {
2550 MonoJumpInfo *res = mono_mempool_alloc (mp, sizeof (MonoJumpInfo));
2551 memcpy (res, patch_info, sizeof (MonoJumpInfo));
2552
2553 switch (patch_info->type) {
2554 case MONO_PATCH_INFO_RVA:
2555 case MONO_PATCH_INFO_LDSTR:
2556 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2557 case MONO_PATCH_INFO_LDTOKEN:
2558 case MONO_PATCH_INFO_DECLSEC:
2559 res->data.token = mono_mempool_alloc (mp, sizeof (MonoJumpInfoToken));
2560 memcpy (res->data.token, patch_info->data.token, sizeof (MonoJumpInfoToken));
2561 break;
2562 case MONO_PATCH_INFO_SWITCH:
2563 res->data.table = mono_mempool_alloc (mp, sizeof (MonoJumpInfoBBTable));
2564 memcpy (res->data.table, patch_info->data.table, sizeof (MonoJumpInfoBBTable));
2565 res->data.table->table = mono_mempool_alloc (mp, sizeof (MonoBasicBlock*) * patch_info->data.table->table_size);
2566 memcpy (res->data.table->table, patch_info->data.table->table, sizeof (MonoBasicBlock*) * patch_info->data.table->table_size);
2567 break;
2568 case MONO_PATCH_INFO_RGCTX_FETCH:
2569 res->data.rgctx_entry = mono_mempool_alloc (mp, sizeof (MonoJumpInfoRgctxEntry));
2570 memcpy (res->data.rgctx_entry, patch_info->data.rgctx_entry, sizeof (MonoJumpInfoRgctxEntry));
2571 res->data.rgctx_entry->data = mono_patch_info_dup_mp (mp, res->data.rgctx_entry->data);
2572 break;
2573 default:
2574 break;
2575 }
2576
2577 return res;
2578 }
2579
2580 guint
2581 mono_patch_info_hash (gconstpointer data)
2582 {
2583 const MonoJumpInfo *ji = (MonoJumpInfo*)data;
2584
2585 switch (ji->type) {
2586 case MONO_PATCH_INFO_RVA:
2587 case MONO_PATCH_INFO_LDSTR:
2588 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2589 case MONO_PATCH_INFO_LDTOKEN:
2590 case MONO_PATCH_INFO_DECLSEC:
2591 return (ji->type << 8) | ji->data.token->token;
2592 case MONO_PATCH_INFO_INTERNAL_METHOD:
2593 return (ji->type << 8) | g_str_hash (ji->data.name);
2594 case MONO_PATCH_INFO_VTABLE:
2595 case MONO_PATCH_INFO_CLASS:
2596 case MONO_PATCH_INFO_IID:
2597 case MONO_PATCH_INFO_ADJUSTED_IID:
2598 case MONO_PATCH_INFO_CLASS_INIT:
2599 case MONO_PATCH_INFO_METHODCONST:
2600 case MONO_PATCH_INFO_METHOD:
2601 case MONO_PATCH_INFO_METHOD_JUMP:
2602 case MONO_PATCH_INFO_IMAGE:
2603 case MONO_PATCH_INFO_JIT_ICALL_ADDR:
2604 case MONO_PATCH_INFO_FIELD:
2605 case MONO_PATCH_INFO_SFLDA:
2606 case MONO_PATCH_INFO_SEQ_POINT_INFO:
2607 return (ji->type << 8) | (gssize)ji->data.target;
2608 default:
2609 return (ji->type << 8);
2610 }
2611 }
2612
2613 /*
2614 * mono_patch_info_equal:
2615 *
2616 * This might fail to recognize equivalent patches, i.e. floats, so its only
2617 * usable in those cases where this is not a problem, i.e. sharing GOT slots
2618 * in AOT.
2619 */
2620 gint
2621 mono_patch_info_equal (gconstpointer ka, gconstpointer kb)
2622 {
2623 const MonoJumpInfo *ji1 = (MonoJumpInfo*)ka;
2624 const MonoJumpInfo *ji2 = (MonoJumpInfo*)kb;
2625
2626 if (ji1->type != ji2->type)
2627 return 0;
2628
2629 switch (ji1->type) {
2630 case MONO_PATCH_INFO_RVA:
2631 case MONO_PATCH_INFO_LDSTR:
2632 case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
2633 case MONO_PATCH_INFO_LDTOKEN:
2634 case MONO_PATCH_INFO_DECLSEC:
2635 if ((ji1->data.token->image != ji2->data.token->image) ||
2636 (ji1->data.token->token != ji2->data.token->token) ||
2637 (ji1->data.token->has_context != ji2->data.token->has_context) ||
2638 (ji1->data.token->context.class_inst != ji2->data.token->context.class_inst) ||
2639 (ji1->data.token->context.method_inst != ji2->data.token->context.method_inst))
2640 return 0;
2641 break;
2642 case MONO_PATCH_INFO_INTERNAL_METHOD:
2643 return g_str_equal (ji1->data.name, ji2->data.name);
2644
2645 case MONO_PATCH_INFO_RGCTX_FETCH: {
2646 MonoJumpInfoRgctxEntry *e1 = ji1->data.rgctx_entry;
2647 MonoJumpInfoRgctxEntry *e2 = ji2->data.rgctx_entry;
2648
2649 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);
2650 }
2651 default:
2652 if (ji1->data.target != ji2->data.target)
2653 return 0;
2654 break;
2655 }
2656
2657 return 1;
2658 }
2659
2660 gpointer
2661 mono_resolve_patch_target (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *patch_info, gboolean run_cctors)
2662 {
2663 unsigned char *ip = patch_info->ip.i + code;
2664 gconstpointer target = NULL;
2665
2666 switch (patch_info->type) {
2667 case MONO_PATCH_INFO_BB:
2668 /*
2669 * FIXME: This could be hit for methods without a prolog. Should use -1
2670 * but too much code depends on a 0 initial value.
2671 */
2672 //g_assert (patch_info->data.bb->native_offset);
2673 target = patch_info->data.bb->native_offset + code;
2674 break;
2675 case MONO_PATCH_INFO_ABS:
2676 target = patch_info->data.target;
2677 break;
2678 case MONO_PATCH_INFO_LABEL:
2679 target = patch_info->data.inst->inst_c0 + code;
2680 break;
2681 case MONO_PATCH_INFO_IP:
2682 target = ip;
2683 break;
2684 case MONO_PATCH_INFO_METHOD_REL:
2685 target = code + patch_info->data.offset;
2686 break;
2687 case MONO_PATCH_INFO_INTERNAL_METHOD: {
2688 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
2689 if (!mi) {
2690 g_warning ("unknown MONO_PATCH_INFO_INTERNAL_METHOD %s", patch_info->data.name);
2691 g_assert_not_reached ();
2692 }
2693 target = mono_icall_get_wrapper (mi);
2694 break;
2695 }
2696 case MONO_PATCH_INFO_METHOD_JUMP:
2697 target = mono_create_jump_trampoline (domain, patch_info->data.method, FALSE);
2698 break;
2699 case MONO_PATCH_INFO_METHOD:
2700 if (patch_info->data.method == method) {
2701 target = code;
2702 } else {
2703 /* get the trampoline to the method from the domain */
2704 target = mono_create_jit_trampoline (patch_info->data.method);
2705 }
2706 break;
2707 case MONO_PATCH_INFO_SWITCH: {
2708 gpointer *jump_table;
2709 int i;
2710
2711 if (method && method->dynamic) {
2712 jump_table = mono_code_manager_reserve (mono_dynamic_code_hash_lookup (domain, method)->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2713 } else {
2714 if (mono_aot_only) {
2715 jump_table = mono_domain_alloc (domain, sizeof (gpointer) * patch_info->data.table->table_size);
2716 } else {
2717 jump_table = mono_domain_code_reserve (domain, sizeof (gpointer) * patch_info->data.table->table_size);
2718 }
2719 }
2720
2721 for (i = 0; i < patch_info->data.table->table_size; i++)
2722 jump_table [i] = code + GPOINTER_TO_INT (patch_info->data.table->table [i]);
2723 target = jump_table;
2724 break;
2725 }
2726 case MONO_PATCH_INFO_METHODCONST:
2727 case MONO_PATCH_INFO_CLASS:
2728 case MONO_PATCH_INFO_IMAGE:
2729 case MONO_PATCH_INFO_FIELD:
2730 target = patch_info->data.target;
2731 break;
2732 case MONO_PATCH_INFO_IID:
2733 mono_class_init (patch_info->data.klass);
2734 target = GINT_TO_POINTER ((int)patch_info->data.klass->interface_id);
2735 break;
2736 case MONO_PATCH_INFO_ADJUSTED_IID:
2737 mono_class_init (patch_info->data.klass);
2738 target = GINT_TO_POINTER ((int)(-((patch_info->data.klass->interface_id + 1) * SIZEOF_VOID_P)));
2739 break;
2740 case MONO_PATCH_INFO_VTABLE:
2741 target = mono_class_vtable (domain, patch_info->data.klass);
2742 g_assert (target);
2743 break;
2744 case MONO_PATCH_INFO_CLASS_INIT: {
2745 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.klass);
2746
2747 g_assert (vtable);
2748 target = mono_create_class_init_trampoline (vtable);
2749 break;
2750 }
2751 case MONO_PATCH_INFO_DELEGATE_TRAMPOLINE:
2752 target = mono_create_delegate_trampoline (patch_info->data.klass);
2753 break;
2754 case MONO_PATCH_INFO_SFLDA: {
2755 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.field->parent);
2756
2757 if (mono_class_field_is_special_static (patch_info->data.field)) {
2758 gpointer addr = NULL;
2759
2760 mono_domain_lock (domain);
2761 if (domain->special_static_fields)
2762 addr = g_hash_table_lookup (domain->special_static_fields, patch_info->data.field);
2763 mono_domain_unlock (domain);
2764 g_assert (addr);
2765 return addr;
2766 }
2767
2768 g_assert (vtable);
2769 if (!vtable->initialized && !(vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) && (method && mono_class_needs_cctor_run (vtable->klass, method)))
2770 /* Done by the generated code */
2771 ;
2772 else {
2773 if (run_cctors)
2774 mono_runtime_class_init (vtable);
2775 }
2776 target = (char*)vtable->data + patch_info->data.field->offset;
2777 break;
2778 }
2779 case MONO_PATCH_INFO_RVA: {
2780 guint32 field_index = mono_metadata_token_index (patch_info->data.token->token);
2781 guint32 rva;
2782
2783 mono_metadata_field_info (patch_info->data.token->image, field_index - 1, NULL, &rva, NULL);
2784 target = mono_image_rva_map (patch_info->data.token->image, rva);
2785 break;
2786 }
2787 case MONO_PATCH_INFO_R4:
2788 case MONO_PATCH_INFO_R8:
2789 target = patch_info->data.target;
2790 break;
2791 case MONO_PATCH_INFO_EXC_NAME:
2792 target = patch_info->data.name;
2793 break;
2794 case MONO_PATCH_INFO_LDSTR:
2795 target =
2796 mono_ldstr (domain, patch_info->data.token->image,
2797 mono_metadata_token_index (patch_info->data.token->token));
2798 break;
2799 case MONO_PATCH_INFO_TYPE_FROM_HANDLE: {
2800 gpointer handle;
2801 MonoClass *handle_class;
2802
2803 handle = mono_ldtoken (patch_info->data.token->image,
2804 patch_info->data.token->token, &handle_class, patch_info->data.token->has_context ? &patch_info->data.token->context : NULL);
2805 mono_class_init (handle_class);
2806 mono_class_init (mono_class_from_mono_type (handle));
2807
2808 target =
2809 mono_type_get_object (domain, handle);
2810 break;
2811 }
2812 case MONO_PATCH_INFO_LDTOKEN: {
2813 gpointer handle;
2814 MonoClass *handle_class;
2815
2816 handle = mono_ldtoken (patch_info->data.token->image,
2817 patch_info->data.token->token, &handle_class, NULL);
2818 mono_class_init (handle_class);
2819
2820 target = handle;
2821 break;
2822 }
2823 case MONO_PATCH_INFO_DECLSEC:
2824 target = (mono_metadata_blob_heap (patch_info->data.token->image, patch_info->data.token->token) + 2);
2825 break;
2826 case MONO_PATCH_INFO_ICALL_ADDR:
2827 /* run_cctors == 0 -> AOT */
2828 if (patch_info->data.method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
2829 if (run_cctors) {
2830 target = mono_lookup_pinvoke_call (patch_info->data.method, NULL, NULL);
2831 if (!target)
2832 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));
2833 } else {
2834 target = NULL;
2835 }
2836 } else {
2837 target = mono_lookup_internal_call (patch_info->data.method);
2838
2839 if (!target && run_cctors)
2840 g_error ("Unregistered icall '%s'\n", mono_method_full_name (patch_info->data.method, TRUE));
2841 }
2842 break;
2843 case MONO_PATCH_INFO_JIT_ICALL_ADDR: {
2844 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
2845 if (!mi) {
2846 g_warning ("unknown MONO_PATCH_INFO_JIT_ICALL_ADDR %s", patch_info->data.name);
2847 g_assert_not_reached ();
2848 }
2849 target = mi->func;
2850 break;
2851 }
2852 case MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG:
2853 target = mono_thread_interruption_request_flag ();
2854 break;
2855 case MONO_PATCH_INFO_METHOD_RGCTX: {
2856 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.method->klass);
2857 g_assert (vtable);
2858
2859 target = mono_method_lookup_rgctx (vtable, mini_method_get_context (patch_info->data.method)->method_inst);
2860 break;
2861 }
2862 case MONO_PATCH_INFO_BB_OVF:
2863 case MONO_PATCH_INFO_EXC_OVF:
2864 case MONO_PATCH_INFO_GOT_OFFSET:
2865 case MONO_PATCH_INFO_NONE:
2866 break;
2867 case MONO_PATCH_INFO_RGCTX_FETCH: {
2868 MonoJumpInfoRgctxEntry *entry = patch_info->data.rgctx_entry;
2869 guint32 slot = -1;
2870
2871 switch (entry->data->type) {
2872 case MONO_PATCH_INFO_CLASS:
2873 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));
2874 break;
2875 case MONO_PATCH_INFO_METHOD:
2876 case MONO_PATCH_INFO_METHODCONST:
2877 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));
2878 break;
2879 case MONO_PATCH_INFO_FIELD:
2880 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));
2881 break;
2882 default:
2883 g_assert_not_reached ();
2884 break;
2885 }
2886
2887 target = mono_create_rgctx_lazy_fetch_trampoline (slot);
2888 break;
2889 }
2890 case MONO_PATCH_INFO_GENERIC_CLASS_INIT:
2891 target = mono_create_generic_class_init_trampoline ();
2892 break;
2893 case MONO_PATCH_INFO_MONITOR_ENTER:
2894 target = mono_create_monitor_enter_trampoline ();
2895 break;
2896 case MONO_PATCH_INFO_MONITOR_EXIT:
2897 target = mono_create_monitor_exit_trampoline ();
2898 break;
2899 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
2900 case MONO_PATCH_INFO_SEQ_POINT_INFO:
2901 if (!run_cctors)
2902 /* AOT, not needed */
2903 target = NULL;
2904 else
2905 target = mono_arch_get_seq_point_info (domain, code);
2906 break;
2907 #endif
2908 case MONO_PATCH_INFO_LLVM_IMT_TRAMPOLINE:
2909 #ifdef MONO_ARCH_LLVM_SUPPORTED
2910 g_assert (mono_use_llvm);
2911 target = mono_create_llvm_imt_trampoline (domain, patch_info->data.imt_tramp->method, patch_info->data.imt_tramp->vt_offset);
2912 #else
2913 g_assert_not_reached ();
2914 #endif
2915 break;
2916 default:
2917 g_assert_not_reached ();
2918 }
2919
2920 return (gpointer)target;
2921 }
2922
2923 void
2924 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
2925 {
2926 ins->inst_offset = native_offset;
2927 g_ptr_array_add (cfg->seq_points, ins);
2928 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2929 bb->last_seq_point = ins;
2930 }
2931
2932 #ifndef DISABLE_JIT
2933
2934 static void
2935 mono_compile_create_vars (MonoCompile *cfg)
2936 {
2937 MonoMethodSignature *sig;
2938 MonoMethodHeader *header;
2939 int i;
2940
2941 header = cfg->header;
2942
2943 sig = mono_method_signature (cfg->method);
2944
2945 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2946 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2947 /* Inhibit optimizations */
2948 cfg->ret->flags |= MONO_INST_VOLATILE;
2949 }
2950 if (cfg->verbose_level > 2)
2951 g_print ("creating vars\n");
2952
2953 cfg->args = mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2954
2955 if (sig->hasthis)
2956 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2957
2958 for (i = 0; i < sig->param_count; ++i) {
2959 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2960 }
2961
2962 if (cfg->verbose_level > 2) {
2963 if (cfg->ret) {
2964 printf ("\treturn : ");
2965 mono_print_ins (cfg->ret);
2966 }
2967
2968 if (sig->hasthis) {
2969 printf ("\tthis: ");
2970 mono_print_ins (cfg->args [0]);
2971 }
2972
2973 for (i = 0; i < sig->param_count; ++i) {
2974 printf ("\targ [%d]: ", i);
2975 mono_print_ins (cfg->args [i + sig->hasthis]);
2976 }
2977 }
2978
2979 cfg->locals_start = cfg->num_varinfo;
2980 cfg->locals = mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2981
2982 if (cfg->verbose_level > 2)
2983 g_print ("creating locals\n");
2984
2985 for (i = 0; i < header->num_locals; ++i)
2986 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2987
2988 if (cfg->verbose_level > 2)
2989 g_print ("locals done\n");
2990
2991 mono_arch_create_vars (cfg);
2992 }
2993
2994 #endif /* #ifndef DISABLE_JIT */
2995
2996 void
2997 mono_print_code (MonoCompile *cfg, const char* msg)
2998 {
2999 MonoBasicBlock *bb;
3000
3001 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3002 mono_print_bb (bb, msg);
3003 }
3004
3005 #ifndef DISABLE_JIT
3006
3007 static void
3008 mono_postprocess_patches (MonoCompile *cfg)
3009 {
3010 MonoJumpInfo *patch_info;
3011 int i;
3012
3013 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
3014 switch (patch_info->type) {
3015 case MONO_PATCH_INFO_ABS: {
3016 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
3017
3018 /*
3019 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
3020 * absolute address.
3021 */
3022 if (info) {
3023 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
3024 // FIXME: CLEAN UP THIS MESS.
3025 if ((cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) &&
3026 strstr (cfg->method->name, info->name)) {
3027 /*
3028 * This is an icall wrapper, and this is a call to the
3029 * wrapped function.
3030 */
3031 if (cfg->compile_aot) {
3032 patch_info->type = MONO_PATCH_INFO_JIT_ICALL_ADDR;
3033 patch_info->data.name = info->name;
3034 }
3035 } else {
3036 /* for these array methods we currently register the same function pointer
3037 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
3038 * will return the incorrect one depending on the order they are registered.
3039 * See tests/test-arr.cs
3040 */
3041 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
3042 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
3043 patch_info->data.name = info->name;
3044 }
3045 }
3046 }
3047
3048 if (patch_info->type == MONO_PATCH_INFO_ABS) {
3049 if (cfg->abs_patches) {
3050 MonoJumpInfo *abs_ji = g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
3051 if (abs_ji) {
3052 patch_info->type = abs_ji->type;
3053 patch_info->data.target = abs_ji->data.target;
3054 }
3055 }
3056 }
3057
3058 break;
3059 }
3060 case MONO_PATCH_INFO_SWITCH: {
3061 gpointer *table;
3062 if (cfg->method->dynamic) {
3063 table = mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
3064 } else {
3065 table = mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
3066 }
3067
3068 for (i = 0; i < patch_info->data.table->table_size; i++) {
3069 /* Might be NULL if the switch is eliminated */
3070 if (patch_info->data.table->table [i]) {
3071 g_assert (patch_info->data.table->table [i]->native_offset);
3072 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
3073 } else {
3074 table [i] = NULL;
3075 }
3076 }
3077 patch_info->data.table->table = (MonoBasicBlock**)table;
3078 break;
3079 }
3080 case MONO_PATCH_INFO_METHOD_JUMP: {
3081 GSList *list;
3082 MonoDomain *domain = cfg->domain;
3083 unsigned char *ip = cfg->native_code + patch_info->ip.i;
3084
3085 mono_domain_lock (domain);
3086 if (!domain_jit_info (domain)->jump_target_hash)
3087 domain_jit_info (domain)->jump_target_hash = g_hash_table_new (NULL, NULL);
3088 list = g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
3089 list = g_slist_prepend (list, ip);
3090 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, list);
3091 mono_domain_unlock (domain);
3092 break;
3093 }
3094 default:
3095 /* do nothing */
3096 break;
3097 }
3098 }
3099 }
3100
3101 static void
3102 collect_pred_seq_points (MonoBasicBlock *bb, MonoInst *ins, GSList **next, int depth)
3103 {
3104 int i;
3105 MonoBasicBlock *in_bb;
3106
3107 for (i = 0; i < bb->in_count; ++i) {
3108 in_bb = bb->in_bb [i];
3109
3110 if (in_bb->last_seq_point) {
3111 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));
3112 } else {
3113 /* Have to look at its predecessors */
3114 if (depth < 5)
3115 collect_pred_seq_points (in_bb, ins, next, depth + 1);
3116 }
3117 }
3118 }
3119
3120 static void
3121 mono_save_seq_point_info (MonoCompile *cfg)
3122 {
3123 MonoBasicBlock *bb;
3124 GSList *bb_seq_points, *l;
3125 MonoInst *last;
3126 MonoDomain *domain = cfg->domain;
3127 int i;
3128 MonoSeqPointInfo *info;
3129 GSList **next;
3130
3131 if (!cfg->seq_points)
3132 return;
3133
3134 info = g_malloc0 (sizeof (MonoSeqPointInfo) + (cfg->seq_points->len - MONO_ZERO_LEN_ARRAY) * sizeof (SeqPoint));
3135 info->len = cfg->seq_points->len;
3136 for (i = 0; i < cfg->seq_points->len; ++i) {
3137 SeqPoint *sp = &info->seq_points [i];
3138 MonoInst *ins = g_ptr_array_index (cfg->seq_points, i);
3139
3140 sp->il_offset = ins->inst_imm;
3141 sp->native_offset = ins->inst_offset;
3142
3143 /* Used below */
3144 ins->backend.size = i;
3145 }
3146
3147 /*
3148 * For each sequence point, compute the list of sequence points immediately
3149 * following it, this is needed to implement 'step over' in the debugger agent.
3150 */
3151 next = g_new0 (GSList*, cfg->seq_points->len);
3152 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3153 bb_seq_points = g_slist_reverse (bb->seq_points);
3154 last = NULL;
3155 for (l = bb_seq_points; l; l = l->next) {
3156 MonoInst *ins = l->data;
3157
3158 if (!(ins->flags & MONO_INST_SINGLE_STEP_LOC))
3159 continue;
3160
3161 if (last != NULL) {
3162 /* Link with the previous seq point in the same bb */
3163 next [last->backend.size] = g_slist_append (next [last->backend.size], GUINT_TO_POINTER (ins->backend.size));
3164 } else {
3165 /* Link with the last bb in the previous bblocks */
3166 collect_pred_seq_points (bb, ins, next, 0);
3167 }
3168
3169 last = ins;
3170 }
3171 }
3172
3173 if (cfg->verbose_level > 2) {
3174 printf ("\nSEQ POINT MAP: \n");
3175 }
3176
3177 for (i = 0; i < cfg->seq_points->len; ++i) {
3178 SeqPoint *sp = &info->seq_points [i];
3179 GSList *l;
3180 int j, next_index;
3181
3182 sp->next_len = g_slist_length (next [i]);
3183 sp->next = g_new (int, sp->next_len);
3184 j = 0;
3185 if (cfg->verbose_level > 2 && next [i]) {
3186 printf ("\t0x%x ->", sp->il_offset);
3187 for (l = next [i]; l; l = l->next) {
3188 next_index = GPOINTER_TO_UINT (l->data);
3189 printf (" 0x%x", info->seq_points [next_index].il_offset);
3190 }
3191 printf ("\n");
3192 }
3193 for (l = next [i]; l; l = l->next) {
3194 next_index = GPOINTER_TO_UINT (l->data);
3195 sp->next [j ++] = next_index;
3196 }
3197 g_slist_free (next [i]);
3198 }
3199 g_free (next);
3200
3201 cfg->seq_point_info = info;
3202
3203 // FIXME: dynamic methods
3204 mono_domain_lock (domain);
3205 g_hash_table_insert (domain_jit_info (domain)->seq_points, cfg->method_to_register, info);
3206 mono_domain_unlock (domain);
3207
3208 g_ptr_array_free (cfg->seq_points, TRUE);
3209 cfg->seq_points = NULL;
3210 }
3211
3212 void
3213 mono_codegen (MonoCompile *cfg)
3214 {
3215 MonoBasicBlock *bb;
3216 int max_epilog_size;
3217 guint8 *code;
3218
3219 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3220 cfg->spill_count = 0;
3221 /* we reuse dfn here */
3222 /* bb->dfn = bb_count++; */
3223
3224 mono_arch_lowering_pass (cfg, bb);
3225
3226 if (cfg->opt & MONO_OPT_PEEPHOLE)
3227 mono_arch_peephole_pass_1 (cfg, bb);
3228
3229 if (!cfg->globalra)
3230 mono_local_regalloc (cfg, bb);
3231
3232 if (cfg->opt & MONO_OPT_PEEPHOLE)
3233 mono_arch_peephole_pass_2 (cfg, bb);
3234 }
3235
3236 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
3237 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
3238
3239 code = mono_arch_emit_prolog (cfg);
3240
3241 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
3242 code = mono_arch_instrument_prolog (cfg, mono_profiler_method_enter, code, FALSE);
3243
3244 cfg->code_len = code - cfg->native_code;
3245 cfg->prolog_end = cfg->code_len;
3246
3247 mono_debug_open_method (cfg);
3248
3249 /* emit code all basic blocks */
3250 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3251 bb->native_offset = cfg->code_len;
3252 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
3253 mono_arch_output_basic_block (cfg, bb);
3254 bb->native_length = cfg->code_len - bb->native_offset;
3255
3256 if (bb == cfg->bb_exit) {
3257 cfg->epilog_begin = cfg->code_len;
3258
3259 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE) {
3260 code = cfg->native_code + cfg->code_len;
3261 code = mono_arch_instrument_epilog (cfg, mono_profiler_method_leave, code, FALSE);
3262 cfg->code_len = code - cfg->native_code;
3263 g_assert (cfg->code_len < cfg->code_size);
3264 }
3265
3266 mono_arch_emit_epilog (cfg);
3267 }
3268 }
3269
3270 mono_arch_emit_exceptions (cfg);
3271
3272 max_epilog_size = 0;
3273
3274 code = cfg->native_code + cfg->code_len;
3275
3276 /* we always allocate code in cfg->domain->code_mp to increase locality */
3277 cfg->code_size = cfg->code_len + max_epilog_size;
3278 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
3279
3280 if (cfg->method->dynamic) {
3281 guint unwindlen = 0;
3282 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3283 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
3284 #endif
3285 /* Allocate the code into a separate memory pool so it can be freed */
3286 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
3287 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
3288 mono_domain_lock (cfg->domain);
3289 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
3290 mono_domain_unlock (cfg->domain);
3291
3292 code = mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + unwindlen);
3293 } else {
3294 guint unwindlen = 0;
3295 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3296 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
3297 #endif
3298 code = mono_domain_code_reserve (cfg->domain, cfg->code_size + unwindlen);
3299 }
3300
3301 memcpy (code, cfg->native_code, cfg->code_len);
3302 g_free (cfg->native_code);
3303 cfg->native_code = code;
3304 code = cfg->native_code + cfg->code_len;
3305
3306 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
3307 mono_postprocess_patches (cfg);
3308
3309 #ifdef VALGRIND_JIT_REGISTER_MAP
3310 if (valgrind_register){
3311 char* nm = mono_method_full_name (cfg->method, TRUE);
3312 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
3313 g_free (nm);
3314 }
3315 #endif
3316
3317 if (cfg->verbose_level > 0) {
3318 char* nm = mono_method_full_name (cfg->method, TRUE);
3319 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
3320 nm,
3321 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3322 g_free (nm);
3323 }
3324
3325 {
3326 gboolean is_generic = FALSE;
3327
3328 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
3329 cfg->method->klass->generic_container || cfg->method->klass->generic_class) {
3330 is_generic = TRUE;
3331 }
3332
3333 if (cfg->generic_sharing_context)
3334 g_assert (is_generic);
3335 }
3336
3337 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
3338 mono_arch_save_unwind_info (cfg);
3339 #endif
3340
3341 mono_arch_patch_code (cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors);
3342
3343 if (cfg->method->dynamic) {
3344 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
3345 } else {
3346 mono_domain_code_commit (cfg->domain, cfg->native_code, cfg->code_size, cfg->code_len);
3347 }
3348 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
3349
3350 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
3351
3352 mono_debug_close_method (cfg);
3353
3354 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
3355 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
3356 #endif
3357 }
3358
3359 static void
3360 compute_reachable (MonoBasicBlock *bb)
3361 {
3362 int i;
3363
3364 if (!(bb->flags & BB_VISITED)) {
3365 bb->flags |= BB_VISITED;
3366 for (i = 0; i < bb->out_count; ++i)
3367 compute_reachable (bb->out_bb [i]);
3368 }
3369 }
3370
3371 static MonoJitInfo*
3372 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
3373 {
3374 GSList *tmp;
3375 MonoMethodHeader *header;
3376 MonoJitInfo *jinfo;
3377 int num_clauses;
3378 int generic_info_size;
3379 int holes_size = 0, num_holes = 0;
3380
3381 g_assert (method_to_compile == cfg->method);
3382 header = cfg->header;
3383
3384 if (cfg->generic_sharing_context)
3385 generic_info_size = sizeof (MonoGenericJitInfo);
3386 else
3387 generic_info_size = 0;
3388
3389 if (cfg->try_block_holes) {
3390 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
3391 TryBlockHole *hole = tmp->data;
3392 MonoExceptionClause *ec = hole->clause;
3393 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
3394 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
3395 g_assert (clause_last_bb);
3396
3397 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
3398 if (clause_last_bb->native_offset != hole_end)
3399 ++num_holes;
3400 }
3401 if (num_holes)
3402 holes_size = sizeof (MonoTryBlockHoleTableJitInfo) + num_holes * sizeof (MonoTryBlockHoleJitInfo);
3403 if (G_UNLIKELY (cfg->verbose_level >= 4))
3404 printf ("Number of try block holes %d\n", num_holes);
3405 }
3406
3407 if (COMPILE_LLVM (cfg))
3408 num_clauses = cfg->llvm_ex_info_len;
3409 else
3410 num_clauses = header->num_clauses;
3411
3412 if (cfg->method->dynamic) {
3413 jinfo = g_malloc0 (MONO_SIZEOF_JIT_INFO + (num_clauses * sizeof (MonoJitExceptionInfo)) +
3414 generic_info_size + holes_size);
3415 } else {
3416 jinfo = mono_domain_alloc0 (cfg->domain, MONO_SIZEOF_JIT_INFO +
3417 (num_clauses * sizeof (MonoJitExceptionInfo)) +
3418 generic_info_size + holes_size);
3419 }
3420
3421 jinfo->method = cfg->method_to_register;
3422 jinfo->code_start = cfg->native_code;
3423 jinfo->code_size = cfg->code_len;
3424 jinfo->used_regs = cfg->used_int_regs;
3425 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
3426 jinfo->cas_inited = FALSE; /* initialization delayed at the first stalk walk using this method */
3427 jinfo->num_clauses = num_clauses;
3428 if (COMPILE_LLVM (cfg))
3429 jinfo->from_llvm = TRUE;
3430
3431 if (cfg->generic_sharing_context) {
3432 MonoInst *inst;
3433 MonoGenericJitInfo *gi;
3434
3435 jinfo->has_generic_jit_info = 1;
3436
3437 gi = mono_jit_info_get_generic_jit_info (jinfo);
3438 g_assert (gi);
3439
3440 gi->generic_sharing_context = cfg->generic_sharing_context;
3441
3442 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
3443 mini_method_get_context (method_to_compile)->method_inst ||
3444 method_to_compile->klass->valuetype) {
3445 g_assert (cfg->rgctx_var);
3446 }
3447
3448 gi->has_this = 1;
3449
3450 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
3451 mini_method_get_context (method_to_compile)->method_inst ||
3452 method_to_compile->klass->valuetype) {
3453 inst = cfg->rgctx_var;
3454 g_assert (inst->opcode == OP_REGOFFSET);
3455 } else {
3456 inst = cfg->args [0];
3457 }
3458
3459 if (inst->opcode == OP_REGVAR) {
3460 gi->this_in_reg = 1;
3461 gi->this_reg = inst->dreg;
3462 } else {
3463 g_assert (inst->opcode == OP_REGOFFSET);
3464 #ifdef TARGET_X86
3465 g_assert (inst->inst_basereg == X86_EBP);
3466 #elif defined(TARGET_AMD64)
3467 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
3468 #endif
3469 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
3470
3471 gi->this_in_reg = 0;
3472 gi->this_reg = inst->inst_basereg;
3473 gi->this_offset = inst->inst_offset;
3474 }
3475 }
3476
3477 if (num_holes) {
3478 MonoTryBlockHoleTableJitInfo *table;
3479 int i;
3480
3481 jinfo->has_try_block_holes = 1;
3482 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
3483 table->num_holes = (guint16)num_holes;
3484 i = 0;
3485 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
3486 guint32 start_bb_offset;
3487 MonoTryBlockHoleJitInfo *hole;
3488 TryBlockHole *hole_data = tmp->data;
3489 MonoExceptionClause *ec = hole_data->clause;
3490 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
3491 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
3492 g_assert (clause_last_bb);
3493
3494 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
3495 if (clause_last_bb->native_offset == hole_end)
3496 continue;
3497
3498 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
3499 hole = &table->holes [i++];
3500 hole->clause = hole_data->clause - &header->clauses [0];
3501 hole->offset = (guint32)hole_data->start_offset;
3502 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
3503
3504 if (G_UNLIKELY (cfg->verbose_level >= 4))
3505 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
3506 }
3507 g_assert (i == num_holes);
3508 }
3509
3510 if (COMPILE_LLVM (cfg)) {
3511 if (num_clauses)
3512 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
3513 } else if (header->num_clauses) {
3514 int i;
3515
3516 for (i = 0; i < header->num_clauses; i++) {
3517 MonoExceptionClause *ec = &header->clauses [i];
3518 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3519 MonoBasicBlock *tblock;
3520 MonoInst *exvar;
3521
3522 ei->flags = ec->flags;
3523
3524 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
3525 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
3526
3527 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3528 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
3529 g_assert (tblock);
3530 ei->data.filter = cfg->native_code + tblock->native_offset;
3531 } else {
3532 ei->data.catch_class = ec->data.catch_class;
3533 }
3534
3535 tblock = cfg->cil_offset_to_bb [ec->try_offset];
3536 g_assert (tblock);
3537 ei->try_start = cfg->native_code + tblock->native_offset;
3538 g_assert (tblock->native_offset);
3539 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
3540 g_assert (tblock);
3541 ei->try_end = cfg->native_code + tblock->native_offset;
3542 g_assert (tblock->native_offset);
3543 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
3544 g_assert (tblock);
3545 ei->handler_start = cfg->native_code + tblock->native_offset;
3546
3547 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
3548 TryBlockHole *hole = tmp->data;
3549 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
3550 if (hole->clause == ec && hole_end == ei->try_end) {
3551 if (G_UNLIKELY (cfg->verbose_level >= 4))
3552 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
3553
3554 ei->try_end = cfg->native_code + hole->start_offset;
3555 break;
3556 }
3557 }
3558
3559 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
3560 int end_offset;
3561 if (ec->handler_offset + ec->handler_len < header->code_size) {
3562 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
3563 g_assert (tblock);
3564 end_offset = tblock->native_offset;
3565 } else {
3566 end_offset = cfg->epilog_begin;
3567 }
3568 ei->data.handler_end = cfg->native_code + end_offset;
3569 }
3570 }
3571
3572 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
3573 for (i = 0; i < jinfo->num_clauses; i++) {
3574 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3575 int start = (guint8*)ei->try_start - cfg->native_code;
3576 int end = (guint8*)ei->try_end - cfg->native_code;
3577 int handler = (guint8*)ei->handler_start - cfg->native_code;
3578
3579 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x\n", i, ei->flags, start, end, handler);
3580 }
3581 }
3582
3583 }
3584
3585 /*
3586 * Its possible to generate dwarf unwind info for xdebug etc, but not actually
3587 * using it during runtime, hence the define.
3588 */
3589 #ifdef MONO_ARCH_HAVE_XP_UNWIND
3590 if (cfg->encoded_unwind_ops) {
3591 jinfo->used_regs = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
3592 g_free (cfg->encoded_unwind_ops);
3593 } else if (cfg->unwind_ops) {
3594 guint32 info_len;
3595 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
3596
3597 jinfo->used_regs = mono_cache_unwind_info (unwind_info, info_len);
3598 g_free (unwind_info);
3599 }
3600 #endif
3601
3602 return jinfo;
3603 }
3604 #endif
3605
3606 /*
3607 * mini_get_shared_method:
3608 *
3609 * Return the method which is actually compiled/registered when doing generic sharing.
3610 */
3611 MonoMethod*
3612 mini_get_shared_method (MonoMethod *method)
3613 {
3614 MonoGenericContext shared_context;
3615 MonoMethod *declaring_method, *res;
3616 int i;
3617 gboolean partial = FALSE;
3618
3619 if (method->is_generic || method->klass->generic_container)
3620 declaring_method = method;
3621 else
3622 declaring_method = mono_method_get_declaring_generic_method (method);
3623
3624 if (declaring_method->is_generic)
3625 shared_context = mono_method_get_generic_container (declaring_method)->context;
3626 else
3627 shared_context = declaring_method->klass->generic_container->context;
3628
3629 /* Handle partial sharing */
3630 if (method != declaring_method && method->is_inflated && !mono_method_is_generic_sharable_impl_full (method, FALSE, FALSE)) {
3631 MonoGenericContext *context = mono_method_get_context (method);
3632 MonoGenericInst *inst;
3633 MonoType **type_argv;
3634
3635 /*
3636 * Create the shared context by replacing the ref type arguments with
3637 * type parameters, and keeping the rest.
3638 */
3639 partial = TRUE;
3640 inst = context->class_inst;
3641 if (inst) {
3642 type_argv = g_new0 (MonoType*, inst->type_argc);
3643 for (i = 0; i < inst->type_argc; ++i) {
3644 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)
3645 type_argv [i] = shared_context.class_inst->type_argv [i];
3646 else
3647 type_argv [i] = inst->type_argv [i];
3648 }
3649
3650 shared_context.class_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
3651 g_free (type_argv);
3652 }
3653
3654 inst = context->method_inst;
3655 if (inst) {
3656 type_argv = g_new0 (MonoType*, inst->type_argc);
3657 for (i = 0; i < inst->type_argc; ++i) {
3658 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)
3659 type_argv [i] = shared_context.method_inst->type_argv [i];
3660 else
3661 type_argv [i] = inst->type_argv [i];
3662 }
3663
3664 shared_context.method_inst = mono_metadata_get_generic_inst (inst->type_argc, type_argv);
3665 g_free (type_argv);
3666 }
3667 }
3668
3669 res = mono_class_inflate_generic_method (declaring_method, &shared_context);
3670 if (!partial) {
3671 /* The result should be an inflated method whose parent is not inflated */
3672 g_assert (!res->klass->is_inflated);
3673 }
3674 return res;
3675 }
3676
3677 #ifndef DISABLE_JIT
3678 /*
3679 * mini_method_compile:
3680 * @method: the method to compile
3681 * @opts: the optimization flags to use
3682 * @domain: the domain where the method will be compiled in
3683 * @run_cctors: whether we should run type ctors if possible
3684 * @compile_aot: whether this is an AOT compilation
3685 * @parts: debug flag
3686 *
3687 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3688 * field in the returned struct to see if compilation succeded.
3689 */
3690 MonoCompile*
3691 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
3692 {
3693 MonoMethodHeader *header;
3694 MonoMethodSignature *sig;
3695 MonoError err;
3696 guint8 *ip;
3697 MonoCompile *cfg;
3698 int dfn, i, code_size_ratio;
3699 gboolean deadce_has_run = FALSE;
3700 gboolean try_generic_shared, try_llvm;
3701 MonoMethod *method_to_compile, *method_to_register;
3702
3703 mono_jit_stats.methods_compiled++;
3704 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3705 mono_profiler_method_jit (method);
3706 if (MONO_PROBE_METHOD_COMPILE_BEGIN_ENABLED ())
3707 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3708
3709 if (compile_aot)
3710 /*
3711 * We might get passed the original generic method definition or
3712 * instances with type parameters.
3713 * FIXME: Remove the method->klass->generic_class limitation.
3714 */
3715 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3716 (opts & MONO_OPT_GSHARED) && ((method->is_generic || method->klass->generic_container) || (!method->klass->generic_class && mono_method_is_generic_sharable_impl (method, TRUE)));
3717 else
3718 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3719 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable_impl (method, FALSE);
3720
3721 if (opts & MONO_OPT_GSHARED) {
3722 if (try_generic_shared)
3723 mono_stats.generics_sharable_methods++;
3724 else if (mono_method_is_generic_impl (method))
3725 mono_stats.generics_unsharable_methods++;
3726 }
3727
3728 try_llvm = TRUE;
3729
3730 #ifndef ENABLE_LLVM
3731 try_llvm = FALSE;
3732 #endif
3733
3734 restart_compile:
3735 if (try_generic_shared) {
3736 method_to_compile = mini_get_shared_method (method);
3737 g_assert (method_to_compile);
3738 } else {
3739 method_to_compile = method;
3740 }
3741
3742 cfg = g_new0 (MonoCompile, 1);
3743 cfg->method = method_to_compile;
3744 cfg->header = mono_method_get_header (cfg->method);
3745 cfg->mempool = mono_mempool_new ();
3746 cfg->opt = opts;
3747 cfg->prof_options = mono_profiler_get_events ();
3748 cfg->run_cctors = run_cctors;
3749 cfg->domain = domain;
3750 cfg->verbose_level = mini_verbose;
3751 cfg->compile_aot = compile_aot;
3752 cfg->skip_visibility = method->skip_visibility;
3753 cfg->orig_method = method;
3754 cfg->gen_seq_points = debug_options.gen_seq_points;
3755 cfg->explicit_null_checks = debug_options.explicit_null_checks;
3756 if (try_generic_shared)
3757 cfg->generic_sharing_context = (MonoGenericSharingContext*)&cfg->generic_sharing_context;
3758 cfg->compile_llvm = try_llvm;
3759 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3760
3761 if (cfg->gen_seq_points)
3762 cfg->seq_points = g_ptr_array_new ();
3763
3764 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || method->klass->generic_container)) {
3765 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3766 return cfg;
3767 }
3768
3769 if (cfg->generic_sharing_context) {
3770 method_to_register = method_to_compile;
3771 } else {
3772 g_assert (method == method_to_compile);
3773 method_to_register = method;
3774 }
3775 cfg->method_to_register = method_to_register;
3776
3777 if (cfg->compile_llvm) {
3778 /* No way to obtain the location info for 'this' */
3779 if (try_generic_shared) {
3780 cfg->exception_message = g_strdup ("gshared");
3781 cfg->disable_llvm = TRUE;
3782 }
3783
3784 if (cfg->method->save_lmf) {
3785 cfg->exception_message = g_strdup ("lmf");
3786 cfg->disable_llvm = TRUE;
3787 }
3788
3789 /* FIXME: */
3790 if (cfg->method->dynamic) {
3791 cfg->exception_message = g_strdup ("dynamic.");
3792 cfg->disable_llvm = TRUE;
3793 }
3794 }
3795
3796 mono_error_init (&err);
3797 sig = mono_method_signature_checked (cfg->method, &err);
3798 if (!sig) {
3799 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3800 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3801 mono_error_cleanup (&err);
3802 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
3803 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3804 return cfg;
3805 }
3806
3807 header = cfg->header;
3808 if (!header) {
3809 MonoLoaderError *error;
3810
3811 if ((error = mono_loader_get_last_error ())) {
3812 cfg->exception_type = error->exception_type;
3813 } else {
3814 cfg->exception_type = MONO_EXCEPTION_INVALID_PROGRAM;
3815 cfg->exception_message = g_strdup_printf ("Missing or incorrect header for method %s", cfg->method->name);
3816 }
3817 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
3818 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3819 return cfg;
3820 }
3821
3822 if (header->clauses) {
3823 /*
3824 * FIXME: LLLVM 2.6/SVN no longer seems to generate correct exception info
3825 * for JITted code.
3826 */
3827 cfg->exception_message = g_strdup ("clauses");
3828 cfg->disable_llvm = TRUE;
3829 }
3830
3831 #ifdef ENABLE_LLVM
3832 {
3833 static gboolean inited;
3834
3835 if (!inited) {
3836 mono_counters_register ("Methods JITted using LLVM", MONO_COUNTER_JIT | MONO_COUNTER_INT, &methods_with_llvm);
3837 mono_counters_register ("Methods JITted using mono JIT", MONO_COUNTER_JIT | MONO_COUNTER_INT, &methods_without_llvm);
3838 inited = TRUE;
3839 }
3840
3841 /*
3842 * Check for methods which cannot be compiled by LLVM early, to avoid
3843 * the extra compilation pass.
3844 */
3845 if (COMPILE_LLVM (cfg) && cfg->disable_llvm) {
3846 if (cfg->verbose_level >= 1) {
3847 //nm = mono_method_full_name (cfg->method, TRUE);
3848 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3849 //g_free (nm);
3850 }
3851 InterlockedIncrement (&methods_without_llvm);
3852 mono_destroy_compile (cfg);
3853 try_llvm = FALSE;
3854 goto restart_compile;
3855 }
3856 }
3857 #endif
3858
3859 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3860 if (mono_debug_using_mono_debugger () || debug_options.mdb_optimizations) {
3861 cfg->disable_reuse_registers = TRUE;
3862 cfg->disable_reuse_stack_slots = TRUE;
3863 /*
3864 * This decreases the change the debugger will read registers/stack slots which are
3865 * not yet initialized.
3866 */
3867 cfg->disable_initlocals_opt = TRUE;
3868
3869 cfg->extend_live_ranges = TRUE;
3870
3871 /* Temporarily disable this when running in the debugger until we have support
3872 * for this in the debugger. */
3873 cfg->disable_omit_fp = TRUE;
3874
3875 /* The debugger needs all locals to be on the stack or in a global register */
3876 cfg->disable_vreg_to_lvreg = TRUE;
3877
3878 /* Don't remove unused variables when running inside the debugger since the user
3879 * may still want to view them. */
3880 cfg->disable_deadce_vars = TRUE;
3881
3882 // cfg->opt |= MONO_OPT_SHARED;
3883 cfg->opt &= ~MONO_OPT_DEADCE;
3884 cfg->opt &= ~MONO_OPT_INLINE;
3885 cfg->opt &= ~MONO_OPT_COPYPROP;
3886 cfg->opt &= ~MONO_OPT_CONSPROP;
3887 cfg->opt &= ~MONO_OPT_GSHARED;
3888
3889 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3890 cfg->disable_out_of_line_bblocks = TRUE;
3891 }
3892
3893 if (mono_using_xdebug) {
3894 /*
3895 * Make each variable use its own register/stack slot and extend
3896 * their liveness to cover the whole method, making them displayable
3897 * in gdb even after they are dead.
3898 */
3899 cfg->disable_reuse_registers = TRUE;
3900 cfg->disable_reuse_stack_slots = TRUE;
3901 cfg->extend_live_ranges = TRUE;
3902 cfg->compute_precise_live_ranges = TRUE;
3903 }
3904
3905 mini_gc_init_gc_map (cfg);
3906
3907 if (COMPILE_LLVM (cfg)) {
3908 cfg->opt |= MONO_OPT_ABCREM;
3909 }
3910
3911 if (getenv ("MONO_VERBOSE_METHOD")) {
3912 char *name = getenv ("MONO_VERBOSE_METHOD");
3913
3914 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3915 MonoMethodDesc *desc;
3916
3917 desc = mono_method_desc_new (name, TRUE);
3918 if (mono_method_desc_full_match (desc, cfg->method)) {
3919 cfg->verbose_level = 4;
3920 }
3921 mono_method_desc_free (desc);
3922 } else {
3923 if (strcmp (cfg->method->name, getenv ("MONO_VERBOSE_METHOD")) == 0)
3924 cfg->verbose_level = 4;
3925 }
3926 }
3927
3928 ip = (guint8 *)header->code;
3929
3930 cfg->intvars = mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3931
3932 if (cfg->verbose_level > 0) {
3933 if (COMPILE_LLVM (cfg))
3934 g_print ("converting llvm method %s\n", mono_method_full_name (method, TRUE));
3935 else if (cfg->generic_sharing_context)
3936 g_print ("converting shared method %s\n", mono_method_full_name (method_to_compile, TRUE));
3937 else
3938 g_print ("converting method %s\n", mono_method_full_name (method, TRUE));
3939 }
3940
3941 if (cfg->opt & (MONO_OPT_ABCREM | MONO_OPT_SSAPRE))
3942 cfg->opt |= MONO_OPT_SSA;
3943
3944 /*
3945 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")))
3946 cfg->globalra = TRUE;
3947 */
3948
3949 //cfg->globalra = TRUE;
3950
3951 //if (!strcmp (cfg->method->klass->name, "Tests") && !cfg->method->wrapper_type)
3952 // cfg->globalra = TRUE;
3953
3954 {
3955 static int count = 0;
3956 count ++;
3957
3958 /*
3959 if (getenv ("COUNT2")) {
3960 cfg->globalra = TRUE;
3961 if (count == atoi (getenv ("COUNT2")))
3962 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
3963 if (count > atoi (getenv ("COUNT2")))
3964 cfg->globalra = FALSE;
3965 }
3966 */
3967 }
3968
3969 if (header->clauses)
3970 cfg->globalra = FALSE;
3971
3972 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED)
3973 /* The code in the prolog clobbers caller saved registers */
3974 cfg->globalra = FALSE;
3975
3976 // FIXME: Disable globalra in case of tracing/profiling
3977
3978 if (cfg->method->save_lmf)
3979 /* The LMF saving code might clobber caller saved registers */
3980 cfg->globalra = FALSE;
3981
3982 if (header->code_size > 5000)
3983 // FIXME:
3984 /* Too large bblocks could overflow the ins positions */
3985 cfg->globalra = FALSE;
3986
3987 cfg->rs = mono_regstate_new ();
3988 if (cfg->globalra)
3989 cfg->rs->next_vreg = MONO_MAX_IREGS + MONO_MAX_FREGS;
3990 cfg->next_vreg = cfg->rs->next_vreg;
3991
3992 /* FIXME: Fix SSA to handle branches inside bblocks */
3993 if (cfg->opt & MONO_OPT_SSA)
3994 cfg->enable_extended_bblocks = FALSE;
3995
3996 /*
3997 * FIXME: This confuses liveness analysis because variables which are assigned after
3998 * a branch inside a bblock become part of the kill set, even though the assignment
3999 * might not get executed. This causes the optimize_initlocals pass to delete some
4000 * assignments which are needed.
4001 * Also, the mono_if_conversion pass needs to be modified to recognize the code
4002 * created by this.
4003 */
4004 //cfg->enable_extended_bblocks = TRUE;
4005
4006 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
4007 if (mono_compile_is_broken (cfg))
4008 return cfg;
4009
4010 /*
4011 * create MonoInst* which represents arguments and local variables
4012 */
4013 mono_compile_create_vars (cfg);
4014
4015 /* SSAPRE is not supported on linear IR */
4016 cfg->opt &= ~MONO_OPT_SSAPRE;
4017
4018 i = mono_method_to_ir (cfg, method_to_compile, NULL, NULL, NULL, NULL, NULL, 0, FALSE);
4019
4020 if (i < 0) {
4021 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
4022 if (compile_aot) {
4023 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4024 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4025 return cfg;
4026 }
4027 mono_destroy_compile (cfg);
4028 try_generic_shared = FALSE;
4029 goto restart_compile;
4030 }
4031 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
4032
4033 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4034 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
4035 /* cfg contains the details of the failure, so let the caller cleanup */
4036 return cfg;
4037 }
4038
4039 mono_jit_stats.basic_blocks += cfg->num_bblocks;
4040 mono_jit_stats.max_basic_blocks = MAX (cfg->num_bblocks, mono_jit_stats.max_basic_blocks);
4041
4042 if (COMPILE_LLVM (cfg)) {
4043 MonoInst *ins;
4044
4045 /* The IR has to be in SSA form for LLVM */
4046 cfg->opt |= MONO_OPT_SSA;
4047
4048 // FIXME:
4049 if (cfg->ret) {
4050 // Allow SSA on the result value
4051 cfg->ret->flags &= ~MONO_INST_VOLATILE;
4052
4053 // Add an explicit return instruction referencing the return value
4054 MONO_INST_NEW (cfg, ins, OP_SETRET);
4055 ins->sreg1 = cfg->ret->dreg;
4056
4057 MONO_ADD_INS (cfg->bb_exit, ins);
4058 }
4059
4060 cfg->opt &= ~MONO_OPT_LINEARS;
4061
4062 /* FIXME: */
4063 cfg->opt &= ~MONO_OPT_BRANCH;
4064 }
4065
4066 /* todo: remove code when we have verified that the liveness for try/catch blocks
4067 * works perfectly
4068 */
4069 /*
4070 * Currently, this can't be commented out since exception blocks are not
4071 * processed during liveness analysis.
4072 * It is also needed, because otherwise the local optimization passes would
4073 * delete assignments in cases like this:
4074 * r1 <- 1
4075 * <something which throws>
4076 * r1 <- 2
4077 * This also allows SSA to be run on methods containing exception clauses, since
4078 * SSA will ignore variables marked VOLATILE.
4079 */
4080 mono_liveness_handle_exception_clauses (cfg);
4081
4082 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
4083
4084 if (!COMPILE_LLVM (cfg))
4085 mono_decompose_long_opts (cfg);
4086
4087 /* Should be done before branch opts */
4088 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP))
4089 mono_local_cprop (cfg);
4090
4091 if (cfg->opt & MONO_OPT_BRANCH)
4092 mono_optimize_branches (cfg);
4093
4094 /* This must be done _before_ global reg alloc and _after_ decompose */
4095 mono_handle_global_vregs (cfg);
4096 if (cfg->opt & MONO_OPT_DEADCE)
4097 mono_local_deadce (cfg);
4098 /* Disable this for LLVM to make the IR easier to handle */
4099 if (!COMPILE_LLVM (cfg))
4100 mono_if_conversion (cfg);
4101
4102 if ((cfg->opt & MONO_OPT_SSAPRE) || cfg->globalra)
4103 mono_remove_critical_edges (cfg);
4104
4105 /* Depth-first ordering on basic blocks */
4106 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
4107
4108 cfg->max_block_num = cfg->num_bblocks;
4109
4110 dfn = 0;
4111 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
4112 if (cfg->num_bblocks != dfn + 1) {
4113 MonoBasicBlock *bb;
4114
4115 cfg->num_bblocks = dfn + 1;
4116
4117 /* remove unreachable code, because the code in them may be
4118 * inconsistent (access to dead variables for example) */
4119 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4120 bb->flags &= ~BB_VISITED;
4121 compute_reachable (cfg->bb_entry);
4122 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4123 if (bb->flags & BB_EXCEPTION_HANDLER)
4124 compute_reachable (bb);
4125 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4126 if (!(bb->flags & BB_VISITED)) {
4127 if (cfg->verbose_level > 1)
4128 g_print ("found unreachable code in BB%d\n", bb->block_num);
4129 bb->code = bb->last_ins = NULL;
4130 while (bb->out_count)
4131 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
4132 }
4133 }
4134 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4135 bb->flags &= ~BB_VISITED;
4136 }
4137
4138 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
4139 /*
4140 * we disable some optimizations if there are too many variables
4141 * because JIT time may become too expensive. The actual number needs
4142 * to be tweaked and eventually the non-linear algorithms should be fixed.
4143 */
4144 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
4145 cfg->disable_ssa = TRUE;
4146 }
4147
4148 if (cfg->opt & MONO_OPT_LOOP) {
4149 mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM);
4150 mono_compute_natural_loops (cfg);
4151 }
4152
4153 /* after method_to_ir */
4154 if (parts == 1) {
4155 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4156 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4157 return cfg;
4158 }
4159
4160 /*
4161 if (header->num_clauses)
4162 cfg->disable_ssa = TRUE;
4163 */
4164
4165 //#define DEBUGSSA "logic_run"
4166 #define DEBUGSSA_CLASS "Tests"
4167 #ifdef DEBUGSSA
4168
4169 if (!cfg->disable_ssa) {
4170 mono_local_cprop (cfg);
4171
4172 #ifndef DISABLE_SSA
4173 mono_ssa_compute (cfg);
4174 #endif
4175 }
4176 #else
4177 if (cfg->opt & MONO_OPT_SSA) {
4178 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
4179 #ifndef DISABLE_SSA
4180 mono_ssa_compute (cfg);
4181 #endif
4182
4183 if (cfg->verbose_level >= 2) {
4184 print_dfn (cfg);
4185 }
4186 }
4187 }
4188 #endif
4189
4190 /* after SSA translation */
4191 if (parts == 2) {
4192 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4193 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4194 return cfg;
4195 }
4196
4197 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
4198 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
4199 #ifndef DISABLE_SSA
4200 mono_ssa_cprop (cfg);
4201 #endif
4202 }
4203 }
4204
4205 #ifndef DISABLE_SSA
4206 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
4207 //mono_ssa_strength_reduction (cfg);
4208
4209 if (cfg->opt & MONO_OPT_SSAPRE) {
4210 mono_perform_ssapre (cfg);
4211 //mono_local_cprop (cfg);
4212 }
4213
4214 if (cfg->opt & MONO_OPT_DEADCE) {
4215 mono_ssa_deadce (cfg);
4216 deadce_has_run = TRUE;
4217 }
4218
4219 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM))
4220 mono_perform_abc_removal (cfg);
4221
4222 mono_ssa_remove (cfg);
4223 mono_local_cprop (cfg);
4224 mono_handle_global_vregs (cfg);
4225 if (cfg->opt & MONO_OPT_DEADCE)
4226 mono_local_deadce (cfg);
4227
4228 if (cfg->opt & MONO_OPT_BRANCH) {
4229 MonoBasicBlock *bb;
4230
4231 mono_optimize_branches (cfg);
4232
4233 /* Have to recompute cfg->bblocks and bb->dfn */
4234 if (cfg->globalra) {
4235 mono_remove_critical_edges (cfg);
4236
4237 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4238 bb->dfn = 0;
4239
4240 /* Depth-first ordering on basic blocks */
4241 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
4242
4243 dfn = 0;
4244 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
4245 cfg->num_bblocks = dfn + 1;
4246 }
4247 }
4248 }
4249 #endif
4250
4251 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
4252 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM))
4253 mono_perform_abc_removal (cfg);
4254 }
4255
4256 /* after SSA removal */
4257 if (parts == 3) {
4258 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4259 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4260 return cfg;
4261 }
4262
4263 #ifdef MONO_ARCH_SOFT_FLOAT
4264 if (!COMPILE_LLVM (cfg))
4265 mono_decompose_soft_float (cfg);
4266 #endif
4267 if (!COMPILE_LLVM (cfg))
4268 mono_decompose_vtype_opts (cfg);
4269 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
4270 mono_decompose_array_access_opts (cfg);
4271
4272 if (cfg->got_var) {
4273 GList *regs;
4274
4275 g_assert (cfg->got_var_allocated);
4276
4277 /*
4278 * Allways allocate the GOT var to a register, because keeping it
4279 * in memory will increase the number of live temporaries in some
4280 * code created by inssel.brg, leading to the well known spills+
4281 * branches problem. Testcase: mcs crash in
4282 * System.MonoCustomAttrs:GetCustomAttributes.
4283 */
4284 regs = mono_arch_get_global_int_regs (cfg);
4285 g_assert (regs);
4286 cfg->got_var->opcode = OP_REGVAR;
4287 cfg->got_var->dreg = GPOINTER_TO_INT (regs->data);
4288 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
4289
4290 g_list_free (regs);
4291 }
4292
4293 /*
4294 * Have to call this again to process variables added since the first call.
4295 */
4296 mono_liveness_handle_exception_clauses (cfg);
4297
4298 if (cfg->globalra) {
4299 MonoBasicBlock *bb;
4300
4301 /* Have to do this before regalloc since it can create vregs */
4302 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
4303 mono_arch_lowering_pass (cfg, bb);
4304
4305 mono_global_regalloc (cfg);
4306 }
4307
4308 if ((cfg->opt & MONO_OPT_LINEARS) && !cfg->globalra) {
4309 GList *vars, *regs;
4310
4311 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
4312 cfg->comp_done &= ~MONO_COMP_LIVENESS;
4313 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
4314 mono_analyze_liveness (cfg);
4315
4316 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
4317 regs = mono_arch_get_global_int_regs (cfg);
4318 if (cfg->got_var)
4319 regs = g_list_delete_link (regs, regs);
4320 mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs);
4321 }
4322 }
4323
4324 //mono_print_code (cfg, "");
4325
4326 //print_dfn (cfg);
4327
4328 /* variables are allocated after decompose, since decompose could create temps */
4329 if (!cfg->globalra && !COMPILE_LLVM (cfg)) {
4330 mono_arch_allocate_vars (cfg);
4331 if (cfg->exception_type)
4332 return cfg;
4333 }
4334
4335 {
4336 MonoBasicBlock *bb;
4337 gboolean need_local_opts;
4338
4339 if (!cfg->globalra && !COMPILE_LLVM (cfg)) {
4340 mono_spill_global_vars (cfg, &need_local_opts);
4341
4342 if (need_local_opts || cfg->compile_aot) {
4343 /* To optimize code created by spill_global_vars */
4344 mono_local_cprop (cfg);
4345 if (cfg->opt & MONO_OPT_DEADCE)
4346 mono_local_deadce (cfg);
4347 }
4348 }
4349
4350 /* Add branches between non-consecutive bblocks */
4351 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4352 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
4353 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
4354 /* we are careful when inverting, since bugs like #59580
4355 * could show up when dealing with NaNs.
4356 */
4357 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
4358 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
4359 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
4360 bb->last_ins->inst_false_bb = tmp;
4361
4362 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
4363 } else {
4364 MonoInst *inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
4365 inst->opcode = OP_BR;
4366 inst->inst_target_bb = bb->last_ins->inst_false_bb;
4367 mono_bblock_add_inst (bb, inst);
4368 }
4369 }
4370 }
4371
4372 if (cfg->verbose_level >= 4 && !cfg->globalra) {
4373 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4374 MonoInst *tree = bb->code;
4375 g_print ("DUMP BLOCK %d:\n", bb->block_num);
4376 if (!tree)
4377 continue;
4378 for (; tree; tree = tree->next) {
4379 mono_print_ins_index (-1, tree);
4380 }
4381 }
4382 }
4383
4384 /* FIXME: */
4385 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4386 bb->max_vreg = cfg->next_vreg;
4387 }
4388 }
4389
4390 if (COMPILE_LLVM (cfg)) {
4391 #ifdef ENABLE_LLVM
4392 char *nm;
4393
4394 /* The IR has to be in SSA form for LLVM */
4395 if (!(cfg->comp_done & MONO_COMP_SSA)) {
4396 cfg->exception_message = g_strdup ("SSA disabled.");
4397 cfg->disable_llvm = TRUE;
4398 }
4399
4400 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
4401 mono_decompose_array_access_opts (cfg);
4402
4403 if (!cfg->disable_llvm)
4404 mono_llvm_emit_method (cfg);
4405 if (cfg->disable_llvm) {
4406 if (cfg->verbose_level >= 1) {
4407 //nm = mono_method_full_name (cfg->method, TRUE);
4408 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
4409 //g_free (nm);
4410 }
4411 InterlockedIncrement (&methods_without_llvm);
4412 mono_destroy_compile (cfg);
4413 try_llvm = FALSE;
4414 goto restart_compile;
4415 }
4416
4417 InterlockedIncrement (&methods_with_llvm);
4418
4419 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
4420 nm = mono_method_full_name (cfg->method, TRUE);
4421 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
4422 nm,
4423 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
4424 g_free (nm);
4425 }
4426 #endif
4427 } else {
4428 mono_codegen (cfg);
4429 }
4430
4431 if (cfg->verbose_level >= 2) {
4432 char *id = mono_method_full_name (cfg->method, FALSE);
4433 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
4434 g_free (id);
4435 }
4436
4437 cfg->jit_info = create_jit_info (cfg, method_to_compile);
4438
4439 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
4440 if (cfg->extend_live_ranges) {
4441 /* Extend live ranges to cover the whole method */
4442 for (i = 0; i < cfg->num_varinfo; ++i)
4443 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
4444 }
4445 #endif
4446
4447 mono_save_xdebug_info (cfg);
4448
4449 mini_gc_create_gc_map (cfg);
4450
4451 mono_save_seq_point_info (cfg);
4452
4453 if (!cfg->compile_aot) {
4454 mono_domain_lock (cfg->domain);
4455 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
4456
4457 if (cfg->method->dynamic)
4458 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
4459 mono_domain_unlock (cfg->domain);
4460 }
4461
4462 /* collect statistics */
4463 mono_perfcounters->jit_methods++;
4464 mono_perfcounters->jit_bytes += header->code_size;
4465 mono_jit_stats.allocated_code_size += cfg->code_len;
4466 code_size_ratio = cfg->code_len;
4467 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
4468 mono_jit_stats.biggest_method_size = code_size_ratio;
4469 g_free (mono_jit_stats.biggest_method);
4470 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4471 }
4472 code_size_ratio = (code_size_ratio * 100) / header->code_size;
4473 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
4474 mono_jit_stats.max_code_size_ratio = code_size_ratio;
4475 g_free (mono_jit_stats.max_ratio_method);
4476 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4477 }
4478 mono_jit_stats.native_code_size += cfg->code_len;
4479
4480 if (MONO_PROBE_METHOD_COMPILE_END_ENABLED ())
4481 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4482
4483 return cfg;
4484 }
4485
4486 #else
4487
4488 MonoCompile*
4489 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
4490 {
4491 g_assert_not_reached ();
4492 return NULL;
4493 }
4494
4495 #endif /* DISABLE_JIT */
4496
4497 MonoJitInfo*
4498 mono_domain_lookup_shared_generic (MonoDomain *domain, MonoMethod *method)
4499 {
4500 static gboolean inited = FALSE;
4501 static int lookups = 0;
4502 static int failed_lookups = 0;
4503 MonoJitInfo *ji;
4504
4505 ji = mono_internal_hash_table_lookup (&domain->jit_code_hash, mini_get_shared_method (method));
4506 if (ji && !ji->has_generic_jit_info)
4507 ji = NULL;
4508
4509 if (!inited) {
4510 mono_counters_register ("Shared generic lookups", MONO_COUNTER_INT|MONO_COUNTER_GENERICS, &lookups);
4511 mono_counters_register ("Failed shared generic lookups", MONO_COUNTER_INT|MONO_COUNTER_GENERICS, &failed_lookups);
4512 inited = TRUE;
4513 }
4514
4515 ++lookups;
4516 if (!ji)
4517 ++failed_lookups;
4518
4519 return ji;
4520 }
4521
4522 /*
4523 * LOCKING: Assumes domain->jit_code_hash_lock is held.
4524 */
4525 static MonoJitInfo*
4526 lookup_method_inner (MonoDomain *domain, MonoMethod *method)
4527 {
4528 MonoJitInfo *ji = mono_internal_hash_table_lookup (&domain->jit_code_hash, method);
4529
4530 if (ji)
4531 return ji;
4532
4533 if (!mono_method_is_generic_sharable_impl (method, FALSE))
4534 return NULL;
4535 return mono_domain_lookup_shared_generic (domain, method);
4536 }
4537
4538 static MonoJitInfo*
4539 lookup_method (MonoDomain *domain, MonoMethod *method)
4540 {
4541 MonoJitInfo *info;
4542
4543 mono_loader_lock (); /*FIXME lookup_method_inner acquired it*/
4544 mono_domain_jit_code_hash_lock (domain);
4545 info = lookup_method_inner (domain, method);
4546 mono_domain_jit_code_hash_unlock (domain);
4547 mono_loader_unlock ();
4548
4549 return info;
4550 }
4551
4552 #if ENABLE_JIT_MAP
4553 static FILE* perf_map_file = NULL;
4554
4555 void
4556 mono_enable_jit_map (void)
4557 {
4558 if (!perf_map_file) {
4559 char name [64];
4560 g_snprintf (name, sizeof (name), "/tmp/perf-%d.map", getpid ());
4561 unlink (name);
4562 perf_map_file = fopen (name, "w");
4563 }
4564 }
4565
4566 void
4567 mono_emit_jit_tramp (void *start, int size, const char *desc)
4568 {
4569 if (perf_map_file)
4570 fprintf (perf_map_file, "%llx %x %s\n", (long long unsigned int)(gsize)start, size, desc);
4571 }
4572
4573 void
4574 mono_emit_jit_map (MonoJitInfo *jinfo)
4575 {
4576 if (perf_map_file) {
4577 char *name = mono_method_full_name (jinfo->method, TRUE);
4578 mono_emit_jit_tramp (jinfo->code_start, jinfo->code_size, name);
4579 g_free (name);
4580 }
4581 }
4582 #endif
4583
4584 static gpointer
4585 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoException **jit_ex)
4586 {
4587 MonoCompile *cfg;
4588 gpointer code = NULL;
4589 MonoJitInfo *jinfo, *info;
4590 MonoVTable *vtable;
4591 MonoException *ex = NULL;
4592 guint32 prof_options;
4593
4594 #ifdef MONO_USE_AOT_COMPILER
4595 if (opt & MONO_OPT_AOT) {
4596 MonoDomain *domain = mono_domain_get ();
4597
4598 mono_class_init (method->klass);
4599
4600 if ((code = mono_aot_get_method (domain, method))) {
4601 vtable = mono_class_vtable (domain, method->klass);
4602 g_assert (vtable);
4603 mono_runtime_class_init (vtable);
4604
4605 return code;
4606 }
4607 }
4608 #endif
4609
4610 #ifndef DISABLE_JIT
4611 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4612 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4613 MonoMethod *nm;
4614 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
4615
4616 if (!piinfo->addr) {
4617 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
4618 piinfo->addr = mono_lookup_internal_call (method);
4619 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
4620 #ifdef HOST_WIN32
4621 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);
4622 #else
4623 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);
4624 #endif
4625 else
4626 mono_lookup_pinvoke_call (method, NULL, NULL);
4627 }
4628 nm = mono_marshal_get_native_wrapper (method, check_for_pending_exc, FALSE);
4629 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4630
4631 //if (mono_debug_format != MONO_DEBUG_FORMAT_NONE)
4632 //mono_debug_add_wrapper (method, nm);
4633 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4634 const char *name = method->name;
4635 MonoMethod *nm;
4636
4637 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4638 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4639 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("mono_delegate_ctor");
4640 g_assert (mi);
4641 /*
4642 * We need to make sure this wrapper
4643 * is compiled because it might end up
4644 * in an (M)RGCTX if generic sharing
4645 * is enabled, and would be called
4646 * indirectly. If it were a
4647 * trampoline we'd try to patch that
4648 * indirect call, which is not
4649 * possible.
4650 */
4651 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4652 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4653 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
4654 return mono_create_delegate_trampoline (method->klass);
4655 #else
4656 nm = mono_marshal_get_delegate_invoke (method, NULL);
4657 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4658 #endif
4659 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4660 nm = mono_marshal_get_delegate_begin_invoke (method);
4661 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4662 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4663 nm = mono_marshal_get_delegate_end_invoke (method);
4664 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4665 }
4666 }
4667 return NULL;
4668 }
4669 #endif
4670
4671 if (mono_aot_only) {
4672 char *fullname = mono_method_full_name (method, TRUE);
4673 char *msg = g_strdup_printf ("Attempting to JIT compile method '%s' while running with --aot-only.\n", fullname);
4674
4675 *jit_ex = mono_get_exception_execution_engine (msg);
4676 g_free (fullname);
4677 g_free (msg);
4678
4679 return NULL;
4680 }
4681
4682 cfg = mini_method_compile (method, opt, target_domain, TRUE, FALSE, 0);
4683
4684 switch (cfg->exception_type) {
4685 case MONO_EXCEPTION_NONE:
4686 break;
4687 case MONO_EXCEPTION_TYPE_LOAD:
4688 case MONO_EXCEPTION_MISSING_FIELD:
4689 case MONO_EXCEPTION_MISSING_METHOD:
4690 case MONO_EXCEPTION_FILE_NOT_FOUND:
4691 case MONO_EXCEPTION_BAD_IMAGE: {
4692 /* Throw a type load exception if needed */
4693 MonoLoaderError *error = mono_loader_get_last_error ();
4694
4695 if (error) {
4696 ex = mono_loader_error_prepare_exception (error);
4697 } else {
4698 if (cfg->exception_ptr) {
4699 ex = mono_class_get_exception_for_failure (cfg->exception_ptr);
4700 } else {
4701 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4702 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4703 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4704 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4705 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4706 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4707 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4708 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FileNotFoundException", cfg->exception_message);
4709 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4710 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4711 else
4712 g_assert_not_reached ();
4713 }
4714 }
4715 break;
4716 }
4717 case MONO_EXCEPTION_INVALID_PROGRAM:
4718 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
4719 break;
4720 case MONO_EXCEPTION_UNVERIFIABLE_IL:
4721 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.Security", "VerificationException", cfg->exception_message);
4722 break;
4723 case MONO_EXCEPTION_METHOD_ACCESS:
4724 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MethodAccessException", cfg->exception_message);
4725 break;
4726 case MONO_EXCEPTION_FIELD_ACCESS:
4727 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FieldAccessException", cfg->exception_message);
4728 break;
4729 /* this can only be set if the security manager is active */
4730 case MONO_EXCEPTION_SECURITY_LINKDEMAND: {
4731 MonoSecurityManager* secman = mono_security_manager_get_methods ();
4732 MonoObject *exc = NULL;
4733 gpointer args [2];
4734
4735 args [0] = &cfg->exception_data;
4736 args [1] = &method;
4737 mono_runtime_invoke (secman->linkdemandsecurityexception, NULL, args, &exc);
4738
4739 ex = (MonoException*)exc;
4740 break;
4741 }
4742 case MONO_EXCEPTION_OBJECT_SUPPLIED: {
4743 MonoException *exp = cfg->exception_ptr;
4744 MONO_GC_UNREGISTER_ROOT (cfg->exception_ptr);
4745
4746 ex = exp;
4747 break;
4748 }
4749 default:
4750 g_assert_not_reached ();
4751 }
4752
4753 if (ex) {
4754 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
4755 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
4756
4757 mono_destroy_compile (cfg);
4758 *jit_ex = ex;
4759
4760 return NULL;
4761 }
4762
4763 mono_loader_lock (); /*FIXME lookup_method_inner requires the loader lock*/
4764 mono_domain_lock (target_domain);
4765
4766 /* Check if some other thread already did the job. In this case, we can
4767 discard the code this thread generated. */
4768
4769 mono_domain_jit_code_hash_lock (target_domain);
4770
4771 info = lookup_method_inner (target_domain, method);
4772 if (info) {
4773 /* We can't use a domain specific method in another domain */
4774 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4775 code = info->code_start;
4776 // printf("Discarding code for method %s\n", method->name);
4777 }
4778 }
4779
4780 if (code == NULL) {
4781 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->method, cfg->jit_info);
4782 mono_domain_jit_code_hash_unlock (target_domain);
4783 code = cfg->native_code;
4784
4785 if (cfg->generic_sharing_context && mono_method_is_generic_sharable_impl (method, FALSE))
4786 mono_stats.generics_shared_methods++;
4787 } else {
4788 mono_domain_jit_code_hash_unlock (target_domain);
4789 }
4790
4791 jinfo = cfg->jit_info;
4792
4793 prof_options = cfg->prof_options;
4794
4795 mono_destroy_compile (cfg);
4796
4797 #ifndef DISABLE_JIT
4798 if (domain_jit_info (target_domain)->jump_target_hash) {
4799 MonoJumpInfo patch_info;
4800 GSList *list, *tmp;
4801 list = g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4802 if (list) {
4803 patch_info.next = NULL;
4804 patch_info.ip.i = 0;
4805 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4806 patch_info.data.method = method;
4807 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4808 }
4809 for (tmp = list; tmp; tmp = tmp->next)
4810 mono_arch_patch_code (NULL, target_domain, tmp->data, &patch_info, TRUE);
4811 g_slist_free (list);
4812 }
4813
4814 mono_emit_jit_map (jinfo);
4815 #endif
4816 mono_domain_unlock (target_domain);
4817 mono_loader_unlock ();
4818
4819 vtable = mono_class_vtable (target_domain, method->klass);
4820 if (!vtable) {
4821 MonoException *exc;
4822 exc = mono_class_get_exception_for_failure (method->klass);
4823 g_assert (exc);
4824 mono_raise_exception (exc);
4825 }
4826
4827 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
4828 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4829 if (mono_marshal_method_from_wrapper (method)) {
4830 /* Native func wrappers have no method */
4831 /* The profiler doesn't know about wrappers, so pass the original icall method */
4832 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
4833 }
4834 } else {
4835 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4836 }
4837 }
4838
4839 mono_runtime_class_init (vtable);
4840 return code;
4841 }
4842
4843 static gpointer
4844 mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt, MonoException **ex)
4845 {
4846 MonoDomain *target_domain, *domain = mono_domain_get ();
4847 MonoJitInfo *info;
4848 gpointer code, p;
4849 MonoJitICallInfo *callinfo = NULL;
4850
4851 /*
4852 * ICALL wrappers are handled specially, since there is only one copy of them
4853 * shared by all appdomains.
4854 */
4855 if ((method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) && (strstr (method->name, "__icall_wrapper_") == method->name)) {
4856 const char *icall_name;
4857
4858 icall_name = method->name + strlen ("__icall_wrapper_");
4859 g_assert (icall_name);
4860 callinfo = mono_find_jit_icall_by_name (icall_name);
4861 g_assert (callinfo);
4862
4863 /* Must be domain neutral since there is only one copy */
4864 opt |= MONO_OPT_SHARED;
4865 }
4866
4867 if (opt & MONO_OPT_SHARED)
4868 target_domain = mono_get_root_domain ();
4869 else
4870 target_domain = domain;
4871
4872 info = lookup_method (target_domain, method);
4873 if (info) {
4874 /* We can't use a domain specific method in another domain */
4875 if (! ((domain != target_domain) && !info->domain_neutral)) {
4876 MonoVTable *vtable;
4877
4878 mono_jit_stats.methods_lookups++;
4879 vtable = mono_class_vtable (domain, method->klass);
4880 g_assert (vtable);
4881 mono_runtime_class_init (vtable);
4882 return mono_create_ftnptr (target_domain, info->code_start);
4883 }
4884 }
4885
4886 code = mono_jit_compile_method_inner (method, target_domain, opt, ex);
4887 if (!code)
4888 return NULL;
4889
4890 p = mono_create_ftnptr (target_domain, code);
4891
4892 if (callinfo) {
4893 mono_jit_lock ();
4894 if (!callinfo->wrapper) {
4895 callinfo->wrapper = p;
4896 mono_register_jit_icall_wrapper (callinfo, p);
4897 mono_debug_add_icall_wrapper (method, callinfo);
4898 }
4899 mono_jit_unlock ();
4900 }
4901
4902 return p;
4903 }
4904
4905 gpointer
4906 mono_jit_compile_method (MonoMethod *method)
4907 {
4908 MonoException *ex = NULL;
4909 gpointer code;
4910
4911 code = mono_jit_compile_method_with_opt (method, default_opt, &ex);
4912 if (!code) {
4913 g_assert (ex);
4914 mono_raise_exception (ex);
4915 }
4916
4917 return code;
4918 }
4919
4920 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
4921 static void
4922 invalidated_delegate_trampoline (char *desc)
4923 {
4924 g_error ("Unmanaged code called delegate of type %s which was already garbage collected.\n"
4925 "See http://www.go-mono.com/delegate.html for an explanation and ways to fix this.",
4926 desc);
4927 }
4928 #endif
4929
4930 /*
4931 * mono_jit_free_method:
4932 *
4933 * Free all memory allocated by the JIT for METHOD.
4934 */
4935 static void
4936 mono_jit_free_method (MonoDomain *domain, MonoMethod *method)
4937 {
4938 MonoJitDynamicMethodInfo *ji;
4939 gboolean destroy = TRUE;
4940
4941 g_assert (method->dynamic);
4942
4943 mono_domain_lock (domain);
4944 ji = mono_dynamic_code_hash_lookup (domain, method);
4945 mono_domain_unlock (domain);
4946
4947 if (!ji)
4948 return;
4949 mono_domain_lock (domain);
4950 g_hash_table_remove (domain_jit_info (domain)->dynamic_code_hash, method);
4951 mono_internal_hash_table_remove (&domain->jit_code_hash, method);
4952 g_hash_table_remove (domain_jit_info (domain)->jump_trampoline_hash, method);
4953 g_hash_table_remove (domain_jit_info (domain)->runtime_invoke_hash, method);
4954 mono_domain_unlock (domain);
4955
4956 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
4957 if (debug_options.keep_delegates && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
4958 /*
4959 * Instead of freeing the code, change it to call an error routine
4960 * so people can fix their code.
4961 */
4962 char *type = mono_type_full_name (&method->klass->byval_arg);
4963 char *type_and_method = g_strdup_printf ("%s.%s", type, method->name);
4964
4965 g_free (type);
4966 mono_arch_invalidate_method (ji->ji, invalidated_delegate_trampoline, type_and_method);
4967 destroy = FALSE;
4968 }
4969 #endif
4970
4971 /*
4972 * This needs to be done before freeing code_mp, since the code address is the
4973 * key in the table, so if we free the code_mp first, another thread can grab the
4974 * same code address and replace our entry in the table.
4975 */
4976 mono_jit_info_table_remove (domain, ji->ji);
4977
4978 if (destroy)
4979 mono_code_manager_destroy (ji->code_mp);
4980 g_free (ji);
4981 }
4982
4983 gpointer
4984 mono_jit_find_compiled_method_with_jit_info (MonoDomain *domain, MonoMethod *method, MonoJitInfo **ji)
4985 {
4986 MonoDomain *target_domain;
4987 MonoJitInfo *info;
4988
4989 if (default_opt & MONO_OPT_SHARED)
4990 target_domain = mono_get_root_domain ();
4991 else
4992 target_domain = domain;
4993
4994 info = lookup_method (target_domain, method);
4995 if (info) {
4996 /* We can't use a domain specific method in another domain */
4997 if (! ((domain != target_domain) && !info->domain_neutral)) {
4998 mono_jit_stats.methods_lookups++;
4999 if (ji)
5000 *ji = info;
5001 return info->code_start;
5002 }
5003 }
5004
5005 if (ji)
5006 *ji = NULL;
5007 return NULL;
5008 }
5009
5010 gpointer
5011 mono_jit_find_compiled_method (MonoDomain *domain, MonoMethod *method)
5012 {
5013 return mono_jit_find_compiled_method_with_jit_info (domain, method, NULL);
5014 }
5015
5016 typedef struct {
5017 MonoMethod *method;
5018 gpointer compiled_method;
5019 gpointer runtime_invoke;
5020 MonoVTable *vtable;
5021 MonoDynCallInfo *dyn_call_info;
5022 MonoClass *ret_box_class;
5023 } RuntimeInvokeInfo;
5024
5025 /**
5026 * mono_jit_runtime_invoke:
5027 * @method: the method to invoke
5028 * @obj: this pointer
5029 * @params: array of parameter values.
5030 * @exc: used to catch exceptions objects
5031 */
5032 static MonoObject*
5033 mono_jit_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
5034 {
5035 MonoMethod *invoke;
5036 MonoObject *(*runtime_invoke) (MonoObject *this, void **params, MonoObject **exc, void* compiled_method);
5037 MonoDomain *domain = mono_domain_get ();
5038 MonoJitDomainInfo *domain_info;
5039 RuntimeInvokeInfo *info, *info2;
5040
5041 if (obj == NULL && !(method->flags & METHOD_ATTRIBUTE_STATIC) && !method->string_ctor && (method->wrapper_type == 0)) {
5042 g_warning ("Ignoring invocation of an instance method on a NULL instance.\n");
5043 return NULL;
5044 }
5045
5046 domain_info = domain_jit_info (domain);
5047
5048 mono_domain_lock (domain);
5049 info = g_hash_table_lookup (domain_info->runtime_invoke_hash, method);
5050 mono_domain_unlock (domain);
5051
5052 if (!info) {
5053 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
5054 /*
5055 * This might be redundant since mono_class_vtable () already does this,
5056 * but keep it just in case for moonlight.
5057 */
5058 mono_class_setup_vtable (method->klass);
5059 if (method->klass->exception_type != MONO_EXCEPTION_NONE) {
5060 if (exc)
5061 *exc = (MonoObject*)mono_class_get_exception_for_failure (method->klass);
5062 else
5063 mono_raise_exception (mono_class_get_exception_for_failure (method->klass));
5064 return NULL;
5065 }
5066 }
5067
5068 info = g_new0 (RuntimeInvokeInfo, 1);
5069
5070 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
5071 info->vtable = mono_class_vtable_full (domain, method->klass, TRUE);
5072 g_assert (info->vtable);
5073
5074 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
5075 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
5076 /*
5077 * Array Get/Set/Address methods. The JIT implements them using inline code
5078 * inside the runtime invoke wrappers, so no need to compile them.
5079 */
5080 info->compiled_method = NULL;
5081 } else {
5082 MonoException *jit_ex = NULL;
5083
5084 info->compiled_method = mono_jit_compile_method_with_opt (method, default_opt, &jit_ex);
5085 if (!info->compiled_method) {
5086 g_free (info);
5087 g_assert (jit_ex);
5088 if (exc) {
5089 *exc = (MonoObject*)jit_ex;
5090 return NULL;
5091 } else {
5092 mono_raise_exception (jit_ex);
5093 }
5094 }
5095
5096 if (mono_method_needs_static_rgctx_invoke (method, FALSE))
5097 info->compiled_method = mono_create_static_rgctx_trampoline (method, info->compiled_method);
5098 }
5099
5100 /*
5101 * We want to avoid AOTing 1000s of runtime-invoke wrappers when running
5102 * in full-aot mode, so we use a slower, but more generic wrapper if
5103 * possible, built on top of the OP_DYN_CALL opcode provided by the JIT.
5104 */
5105 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
5106 if (mono_aot_only || debug_options.dyn_runtime_invoke) {
5107 MonoMethodSignature *sig = mono_method_signature (method);
5108 gboolean supported = TRUE;
5109 int i;
5110
5111 if (method->string_ctor)
5112 sig = mono_marshal_get_string_ctor_signature (method);
5113
5114 for (i = 0; i < sig->param_count; ++i) {
5115 MonoType *t = sig->params [i];
5116
5117 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
5118 supported = FALSE;
5119 }
5120
5121 if (method->klass->contextbound || !info->compiled_method)
5122 supported = FALSE;
5123
5124 if (supported)
5125 info->dyn_call_info = mono_arch_dyn_call_prepare (sig);
5126
5127 if (info->dyn_call_info) {
5128 switch (sig->ret->type) {
5129 case MONO_TYPE_VOID:
5130 break;
5131 case MONO_TYPE_I1:
5132 case MONO_TYPE_U1:
5133 case MONO_TYPE_I2:
5134 case MONO_TYPE_U2:
5135 case MONO_TYPE_I4:
5136 case MONO_TYPE_U4:
5137 case MONO_TYPE_I:
5138 case MONO_TYPE_U:
5139 case MONO_TYPE_I8:
5140 case MONO_TYPE_U8:
5141 case MONO_TYPE_BOOLEAN:
5142 case MONO_TYPE_CHAR:
5143 case MONO_TYPE_R4:
5144 case MONO_TYPE_R8:
5145 info->ret_box_class = mono_class_from_mono_type (sig->ret);
5146 break;
5147 case MONO_TYPE_PTR:
5148 info->ret_box_class = mono_defaults.int_class;
5149 break;
5150 case MONO_TYPE_STRING:
5151 case MONO_TYPE_CLASS:
5152 case MONO_TYPE_ARRAY:
5153 case MONO_TYPE_SZARRAY:
5154 case MONO_TYPE_OBJECT:
5155 break;
5156 case MONO_TYPE_GENERICINST:
5157 if (!MONO_TYPE_IS_REFERENCE (sig->ret))
5158 info->ret_box_class = mono_class_from_mono_type (sig->ret);
5159 break;
5160 case MONO_TYPE_VALUETYPE:
5161 info->ret_box_class = mono_class_from_mono_type (sig->ret);
5162 break;
5163 default:
5164 g_assert_not_reached ();
5165 break;
5166 }
5167 }
5168 }
5169 #endif
5170
5171 if (!info->dyn_call_info)
5172 info->runtime_invoke = mono_jit_compile_method (invoke);
5173
5174 mono_domain_lock (domain);
5175 info2 = g_hash_table_lookup (domain_info->runtime_invoke_hash, method);
5176 if (info2) {
5177 g_free (info);
5178 info = info2;
5179 } else {
5180 g_hash_table_insert (domain_info->runtime_invoke_hash, method, info);
5181 }
5182 mono_domain_unlock (domain);
5183 }
5184
5185 runtime_invoke = info->runtime_invoke;
5186
5187 /*
5188 * We need this here because mono_marshal_get_runtime_invoke can place
5189 * the helper method in System.Object and not the target class.
5190 */
5191 mono_runtime_class_init (info->vtable);
5192
5193 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
5194 if (info->dyn_call_info) {
5195 MonoMethodSignature *sig = mono_method_signature (method);
5196 gpointer *args;
5197 static RuntimeInvokeDynamicFunction dyn_runtime_invoke;
5198 int i, pindex;
5199 guint8 buf [128];
5200 guint8 retval [128];
5201
5202 if (!dyn_runtime_invoke) {
5203 invoke = mono_marshal_get_runtime_invoke_dynamic ();
5204 dyn_runtime_invoke = mono_jit_compile_method (invoke);
5205 }
5206
5207 /* Convert the arguments to the format expected by start_dyn_call () */
5208 args = g_alloca ((sig->param_count + sig->hasthis) * sizeof (gpointer));
5209 pindex = 0;
5210 if (sig->hasthis)
5211 args [pindex ++] = &obj;
5212 for (i = 0; i < sig->param_count; ++i) {
5213 MonoType *t = sig->params [i];
5214
5215 if (t->byref) {
5216 args [pindex ++] = &params [i];
5217 } else if (MONO_TYPE_IS_REFERENCE (t) || t->type == MONO_TYPE_PTR) {
5218 args [pindex ++] = &params [i];
5219 } else {
5220 args [pindex ++] = params [i];
5221 }
5222 }
5223
5224 //printf ("M: %s\n", mono_method_full_name (method, TRUE));
5225
5226 mono_arch_start_dyn_call (info->dyn_call_info, (gpointer**)args, retval, buf, sizeof (buf));
5227
5228 dyn_runtime_invoke (buf, exc, info->compiled_method);
5229
5230 mono_arch_finish_dyn_call (info->dyn_call_info, buf);
5231
5232 if (info->ret_box_class)
5233 return mono_value_box (domain, info->ret_box_class, retval);
5234 else
5235 return *(MonoObject**)retval;
5236 }
5237 #endif
5238
5239 return runtime_invoke (obj, params, exc, info->compiled_method);
5240 }
5241
5242 void
5243 SIG_HANDLER_SIGNATURE (mono_sigfpe_signal_handler)
5244 {
5245 MonoException *exc = NULL;
5246 MonoJitInfo *ji;
5247 #if !(defined(MONO_ARCH_USE_SIGACTION) || defined(HOST_WIN32))
5248 void *info = NULL;
5249 #endif
5250 GET_CONTEXT;
5251
5252 ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context (ctx));
5253
5254 #if defined(MONO_ARCH_HAVE_IS_INT_OVERFLOW)
5255 if (mono_arch_is_int_overflow (ctx, info))
5256 exc = mono_get_exception_arithmetic ();
5257 else
5258 exc = mono_get_exception_divide_by_zero ();
5259 #else
5260 exc = mono_get_exception_divide_by_zero ();
5261 #endif
5262
5263 if (!ji) {
5264 if (mono_chain_signal (SIG_HANDLER_PARAMS))
5265 return;
5266
5267 mono_handle_native_sigsegv (SIGSEGV, ctx);
5268 }
5269
5270 mono_arch_handle_exception (ctx, exc, FALSE);
5271 }
5272
5273 void
5274 SIG_HANDLER_SIGNATURE (mono_sigill_signal_handler)
5275 {
5276 MonoException *exc;
5277 GET_CONTEXT;
5278
5279 exc = mono_get_exception_execution_engine ("SIGILL");
5280
5281 mono_arch_handle_exception (ctx, exc, FALSE);
5282 }
5283
5284 #if defined(MONO_ARCH_USE_SIGACTION) || defined(HOST_WIN32)
5285 #define HAVE_SIG_INFO
5286 #endif
5287
5288 void
5289 SIG_HANDLER_SIGNATURE (mono_sigsegv_signal_handler)
5290 {
5291 MonoJitInfo *ji;
5292 MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id);
5293
5294 GET_CONTEXT;
5295
5296 #if defined(MONO_ARCH_SOFT_DEBUG_SUPPORTED) && defined(HAVE_SIG_INFO)
5297 if (mono_arch_is_single_step_event (info, ctx)) {
5298 mono_debugger_agent_single_step_event (ctx);
5299 return;
5300 } else if (mono_arch_is_breakpoint_event (info, ctx)) {
5301 mono_debugger_agent_breakpoint_hit (ctx);
5302 return;
5303 }
5304 #endif
5305
5306 #if !defined(HOST_WIN32) && defined(HAVE_SIG_INFO)
5307 if (mono_aot_is_pagefault (info->si_addr)) {
5308 mono_aot_handle_pagefault (info->si_addr);
5309 return;
5310 }
5311 #endif
5312
5313 /* The thread might no be registered with the runtime */
5314 if (!mono_domain_get () || !jit_tls) {
5315 if (mono_chain_signal (SIG_HANDLER_PARAMS))
5316 return;
5317 mono_handle_native_sigsegv (SIGSEGV, ctx);
5318 }
5319
5320 ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context (ctx));
5321
5322 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
5323 if (mono_handle_soft_stack_ovf (jit_tls, ji, ctx, (guint8*)info->si_addr))
5324 return;
5325
5326 /* The hard-guard page has been hit: there is not much we can do anymore
5327 * Print a hopefully clear message and abort.
5328 */
5329 if (jit_tls->stack_size &&
5330 ABS ((guint8*)info->si_addr - ((guint8*)jit_tls->end_of_stack - jit_tls->stack_size)) < 32768) {
5331 const char *method;
5332 /* we don't do much now, but we can warn the user with a useful message */
5333 fprintf (stderr, "Stack overflow: IP: %p, fault addr: %p\n", mono_arch_ip_from_context (ctx), (gpointer)info->si_addr);
5334 if (ji && ji->method)
5335 method = mono_method_full_name (ji->method, TRUE);
5336 else
5337 method = "Unmanaged";
5338 fprintf (stderr, "At %s\n", method);
5339 _exit (1);
5340 } else {
5341 /* The original handler might not like that it is executed on an altstack... */
5342 if (!ji && mono_chain_signal (SIG_HANDLER_PARAMS))
5343 return;
5344
5345 mono_arch_handle_altstack_exception (ctx, info->si_addr, FALSE);
5346 }
5347 #else
5348
5349 if (!ji) {
5350 if (mono_chain_signal (SIG_HANDLER_PARAMS))
5351 return;
5352
5353 mono_handle_native_sigsegv (SIGSEGV, ctx);
5354 }
5355
5356 mono_arch_handle_exception (ctx, NULL, FALSE);
5357 #endif
5358 }
5359
5360 void
5361 SIG_HANDLER_SIGNATURE (mono_sigint_signal_handler)
5362 {
5363 MonoException *exc;
5364 GET_CONTEXT;
5365
5366 exc = mono_get_exception_execution_engine ("Interrupted (SIGINT).");
5367
5368 mono_arch_handle_exception (ctx, exc, FALSE);
5369 }
5370
5371 /* mono_jit_create_remoting_trampoline:
5372 * @method: pointer to the method info
5373 *
5374 * Creates a trampoline which calls the remoting functions. This
5375 * is used in the vtable of transparent proxies.
5376 *
5377 * Returns: a pointer to the newly created code
5378 */
5379 static gpointer
5380 mono_jit_create_remoting_trampoline (MonoDomain *domain, MonoMethod *method, MonoRemotingTarget target)
5381 {
5382 MonoMethod *nm;
5383 guint8 *addr = NULL;
5384
5385 if ((method->flags & METHOD_ATTRIBUTE_VIRTUAL) && mono_method_signature (method)->generic_param_count) {
5386 return mono_create_specific_trampoline (method, MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING,
5387 domain, NULL);
5388 }
5389
5390 if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
5391 (mono_method_signature (method)->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class))) {
5392 nm = mono_marshal_get_remoting_invoke_for_target (method, target);
5393 addr = mono_compile_method (nm);
5394 } else {
5395 addr = mono_compile_method (method);
5396 }
5397 return mono_get_addr_from_ftnptr (addr);
5398 }
5399
5400 #ifdef MONO_ARCH_HAVE_IMT
5401 static G_GNUC_UNUSED gpointer
5402 mini_get_imt_trampoline (void)
5403 {
5404 static gpointer tramp = NULL;
5405 if (!tramp)
5406 tramp = mono_create_specific_trampoline (MONO_FAKE_IMT_METHOD, MONO_TRAMPOLINE_JIT, mono_get_root_domain (), NULL);
5407 return tramp;
5408 }
5409 #endif
5410
5411 gpointer
5412 mini_get_vtable_trampoline (int slot_index)
5413 {
5414 static gpointer tramp = NULL;
5415
5416 if (!tramp)
5417 tramp = mono_create_specific_trampoline (MONO_FAKE_VTABLE_METHOD, MONO_TRAMPOLINE_JIT, mono_get_root_domain (), NULL);
5418 return tramp;
5419 }
5420
5421 static void
5422 mini_parse_debug_options (void)
5423 {
5424 char *options = getenv ("MONO_DEBUG");
5425 gchar **args, **ptr;
5426
5427 if (!options)
5428 return;
5429
5430 args = g_strsplit (options, ",", -1);
5431
5432 for (ptr = args; ptr && *ptr; ptr++) {
5433 const char *arg = *ptr;
5434
5435 if (!strcmp (arg, "handle-sigint"))
5436 debug_options.handle_sigint = TRUE;
5437 else if (!strcmp (arg, "keep-delegates"))
5438 debug_options.keep_delegates = TRUE;
5439 else if (!strcmp (arg, "collect-pagefault-stats"))
5440 debug_options.collect_pagefault_stats = TRUE;
5441 else if (!strcmp (arg, "break-on-unverified"))
5442 debug_options.break_on_unverified = TRUE;
5443 else if (!strcmp (arg, "no-gdb-backtrace"))
5444 debug_options.no_gdb_backtrace = TRUE;
5445 else if (!strcmp (arg, "suspend-on-sigsegv"))
5446 debug_options.suspend_on_sigsegv = TRUE;
5447 else if (!strcmp (arg, "dont-free-domains"))
5448 mono_dont_free_domains = TRUE;
5449 else if (!strcmp (arg, "dyn-runtime-invoke"))
5450 debug_options.dyn_runtime_invoke = TRUE;
5451 else if (!strcmp (arg, "gdb"))
5452 debug_options.gdb = TRUE;
5453 else if (!strcmp (arg, "explicit-null-checks"))
5454 debug_options.explicit_null_checks = TRUE;
5455 else if (!strcmp (arg, "gen-seq-points"))
5456 debug_options.gen_seq_points = TRUE;
5457 else if (!strcmp (arg, "init-stacks"))
5458 debug_options.init_stacks = TRUE;
5459 else {
5460 fprintf (stderr, "Invalid option for the MONO_DEBUG env variable: %s\n", arg);
5461 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");
5462 exit (1);
5463 }
5464 }
5465
5466 g_strfreev (args);
5467 }
5468
5469 MonoDebugOptions *
5470 mini_get_debug_options (void)
5471 {
5472 return &debug_options;
5473 }
5474
5475 static gpointer
5476 mini_create_ftnptr (MonoDomain *domain, gpointer addr)
5477 {
5478 #ifdef __ia64__
5479 gpointer *desc;
5480
5481 desc = mono_domain_code_reserve (domain, 2 * sizeof (gpointer));
5482
5483 desc [0] = addr;
5484 desc [1] = NULL;
5485
5486 return desc;
5487 #elif defined(__ppc64__) || defined(__powerpc64__)
5488 gpointer *desc;
5489
5490 desc = mono_domain_alloc0 (domain, 3 * sizeof (gpointer));
5491
5492 desc [0] = addr;
5493 desc [1] = NULL;
5494 desc [2] = NULL;
5495
5496 return desc;
5497 #else
5498 return addr;
5499 #endif
5500 }
5501
5502 static gpointer
5503 mini_get_addr_from_ftnptr (gpointer descr)
5504 {
5505 #if defined(__ia64__) || defined(__ppc64__) || defined(__powerpc64__)
5506 return *(gpointer*)descr;
5507 #else
5508 return descr;
5509 #endif
5510 }
5511
5512 static void runtime_invoke_info_free (gpointer value);
5513
5514 static void
5515 mini_create_jit_domain_info (MonoDomain *domain)
5516 {
5517 MonoJitDomainInfo *info = g_new0 (MonoJitDomainInfo, 1);
5518
5519 info->class_init_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5520 info->jump_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5521 info->jit_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5522 info->delegate_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5523 info->llvm_vcall_trampoline_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5524 info->runtime_invoke_hash = g_hash_table_new_full (mono_aligned_addr_hash, NULL, NULL, runtime_invoke_info_free);
5525 info->seq_points = g_hash_table_new_full (mono_aligned_addr_hash, NULL, NULL, g_free);
5526 info->arch_seq_points = g_hash_table_new (mono_aligned_addr_hash, NULL);
5527
5528 domain->runtime_info = info;
5529 }
5530
5531 static void
5532 delete_jump_list (gpointer key, gpointer value, gpointer user_data)
5533 {
5534 g_slist_free (value);
5535 }
5536
5537 static void
5538 dynamic_method_info_free (gpointer key, gpointer value, gpointer user_data)
5539 {
5540 MonoJitDynamicMethodInfo *di = value;
5541 mono_code_manager_destroy (di->code_mp);
5542 g_free (di);
5543 }
5544
5545 static void
5546 runtime_invoke_info_free (gpointer value)
5547 {
5548 RuntimeInvokeInfo *info = (RuntimeInvokeInfo*)value;
5549
5550 #ifdef MONO_ARCH_DYN_CALL_SUPPORTED
5551 if (info->dyn_call_info)
5552 mono_arch_dyn_call_free (info->dyn_call_info);
5553 #endif
5554 g_free (info);
5555 }
5556
5557 static void
5558 mini_free_jit_domain_info (MonoDomain *domain)
5559 {
5560 MonoJitDomainInfo *info = domain_jit_info (domain);
5561
5562 if (info->jump_target_hash) {
5563 g_hash_table_foreach (info->jump_target_hash, delete_jump_list, NULL);
5564 g_hash_table_destroy (info->jump_target_hash);
5565 }
5566 if (info->jump_target_got_slot_hash) {
5567 g_hash_table_foreach (info->jump_target_got_slot_hash, delete_jump_list, NULL);
5568 g_hash_table_destroy (info->jump_target_got_slot_hash);
5569 }
5570 if (info->dynamic_code_hash) {
5571 g_hash_table_foreach (info->dynamic_code_hash, dynamic_method_info_free, NULL);
5572 g_hash_table_destroy (info->dynamic_code_hash);
5573 }
5574 if (info->method_code_hash)
5575 g_hash_table_destroy (info->method_code_hash);
5576 g_hash_table_destroy (info->class_init_trampoline_hash);
5577 g_hash_table_destroy (info->jump_trampoline_hash);
5578 g_hash_table_destroy (info->jit_trampoline_hash);
5579 g_hash_table_destroy (info->delegate_trampoline_hash);
5580 if (info->static_rgctx_trampoline_hash)
5581 g_hash_table_destroy (info->static_rgctx_trampoline_hash);
5582 g_hash_table_destroy (info->llvm_vcall_trampoline_hash);
5583 g_hash_table_destroy (info->runtime_invoke_hash);
5584 g_hash_table_destroy (info->seq_points);
5585 g_hash_table_destroy (info->arch_seq_points);
5586
5587 if (info->agent_info)
5588 mono_debugger_agent_free_domain_info (domain);
5589
5590 g_free (domain->runtime_info);
5591 domain->runtime_info = NULL;
5592 }
5593
5594 MonoDomain *
5595 mini_init (const char *filename, const char *runtime_version)
5596 {
5597 MonoDomain *domain;
5598 MonoRuntimeCallbacks callbacks;
5599
5600 MONO_PROBE_VES_INIT_BEGIN ();
5601
5602 #ifdef __linux__
5603 if (access ("/proc/self/maps", F_OK) != 0) {
5604 g_print ("Mono requires /proc to be mounted.\n");
5605 exit (1);
5606 }
5607 #endif
5608
5609 /* Happens when using the embedding interface */
5610 if (!default_opt_set)
5611 default_opt = mono_parse_default_optimizations (NULL);
5612
5613 InitializeCriticalSection (&jit_mutex);
5614
5615 #ifdef MONO_DEBUGGER_SUPPORTED
5616 if (mini_debug_running_inside_mdb ())
5617 mini_debugger_init ();
5618 #endif
5619
5620 #ifdef MONO_ARCH_HAVE_TLS_GET
5621 mono_runtime_set_has_tls_get (MONO_ARCH_HAVE_TLS_GET);
5622 #else
5623 mono_runtime_set_has_tls_get (FALSE);
5624 #endif
5625
5626 if (!global_codeman)
5627 global_codeman = mono_code_manager_new ();
5628 jit_icall_name_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
5629
5630 memset (&callbacks, 0, sizeof (callbacks));
5631 callbacks.create_ftnptr = mini_create_ftnptr;
5632 callbacks.get_addr_from_ftnptr = mini_get_addr_from_ftnptr;
5633 callbacks.get_runtime_build_info = mono_get_runtime_build_info;
5634
5635 #ifdef MONO_ARCH_HAVE_IMT
5636 if (mono_use_imt) {
5637 if (!mono_use_llvm) {
5638 /* LLVM needs a per-method vtable trampoline */
5639 callbacks.get_vtable_trampoline = mini_get_vtable_trampoline;
5640 }
5641 }
5642 #endif
5643
5644 mono_install_callbacks (&callbacks);
5645
5646 mono_arch_cpu_init ();
5647
5648 mono_arch_init ();
5649
5650 mono_unwind_init ();
5651
5652 mini_gc_init ();
5653
5654 if (getenv ("MONO_DEBUG") != NULL)
5655 mini_parse_debug_options ();
5656
5657 if (getenv ("MONO_XDEBUG")) {
5658 char *xdebug_opts = getenv ("MONO_XDEBUG");
5659 mono_xdebug_init (xdebug_opts);
5660 /* So methods for multiple domains don't have the same address */
5661 mono_dont_free_domains = TRUE;
5662 mono_using_xdebug = TRUE;
5663 } else if (mini_get_debug_options ()->gdb) {
5664 mono_xdebug_init ((char*)"gdb");
5665 mono_dont_free_domains = TRUE;
5666 mono_using_xdebug = TRUE;
5667 }
5668
5669 #ifdef ENABLE_LLVM
5670 mono_llvm_init ();
5671 #endif
5672
5673 mono_trampolines_init ();
5674
5675 if (!g_thread_supported ())
5676 g_thread_init (NULL);
5677
5678 mono_jit_tls_id = TlsAlloc ();
5679 setup_jit_tls_data ((gpointer)-1, mono_thread_abort);
5680
5681 if (default_opt & MONO_OPT_AOT)
5682 mono_aot_init ();
5683
5684 mono_debugger_agent_init ();
5685
5686 #ifdef MONO_ARCH_GSHARED_SUPPORTED
5687 mono_set_generic_sharing_supported (TRUE);
5688 #endif
5689
5690 #ifndef MONO_CROSS_COMPILE
5691 mono_runtime_install_handlers ();
5692 #endif
5693 mono_threads_install_cleanup (mini_thread_cleanup);
5694
5695 #ifdef MONO_ARCH_HAVE_NOTIFY_PENDING_EXC
5696 // This is experimental code so provide an env var to switch it off
5697 if (getenv ("MONO_DISABLE_PENDING_EXCEPTIONS")) {
5698 printf ("MONO_DISABLE_PENDING_EXCEPTIONS env var set.\n");
5699 } else {
5700 check_for_pending_exc = FALSE;
5701 mono_threads_install_notify_pending_exc (mono_arch_notify_pending_exc);
5702 }
5703 #endif
5704
5705 #define JIT_TRAMPOLINES_WORK
5706 #ifdef JIT_TRAMPOLINES_WORK
5707 mono_install_compile_method (mono_jit_compile_method);
5708 mono_install_free_method (mono_jit_free_method);
5709 #ifdef MONO_ARCH_LLVM_SUPPORTED
5710 if (mono_use_llvm)
5711 /* The runtime currently only uses this for filling out vtables */
5712 mono_install_trampoline (mono_create_llvm_vcall_trampoline);
5713 else
5714 mono_install_trampoline (mono_create_jit_trampoline);
5715 #else
5716 mono_install_trampoline (mono_create_jit_trampoline);
5717 #endif
5718 mono_install_jump_trampoline (mono_create_jump_trampoline);
5719 mono_install_remoting_trampoline (mono_jit_create_remoting_trampoline);
5720 mono_install_delegate_trampoline (mono_create_delegate_trampoline);
5721 mono_install_create_domain_hook (mini_create_jit_domain_info);
5722 mono_install_free_domain_hook (mini_free_jit_domain_info);
5723 #endif
5724 #define JIT_INVOKE_WORKS
5725 #ifdef JIT_INVOKE_WORKS
5726 mono_install_runtime_invoke (mono_jit_runtime_invoke);
5727 #endif
5728 mono_install_stack_walk (mono_jit_walk_stack);
5729 mono_install_get_cached_class_info (mono_aot_get_cached_class_info);
5730 mono_install_get_class_from_name (mono_aot_get_class_from_name);
5731 mono_install_jit_info_find_in_aot (mono_aot_find_jit_info);
5732
5733 if (debug_options.collect_pagefault_stats) {
5734 mono_aot_set_make_unreadable (TRUE);
5735 }
5736
5737 if (runtime_version)
5738 domain = mono_init_version (filename, runtime_version);
5739 else
5740 domain = mono_init_from_assembly (filename, filename);
5741
5742 if (mono_aot_only) {
5743 /* This helps catch code allocation requests */
5744 mono_code_manager_set_read_only (domain->code_mp);
5745 }
5746
5747 #ifdef MONO_ARCH_HAVE_IMT
5748 if (mono_use_imt) {
5749 if (mono_aot_only)
5750 mono_install_imt_thunk_builder (mono_aot_get_imt_thunk);
5751 else
5752 mono_install_imt_thunk_builder (mono_arch_build_imt_thunk);
5753 if (!mono_use_llvm) {
5754 /*
5755 * The imt code in mono_magic_trampoline () can't handle LLVM code. By disabling
5756 * this, we force iface calls to go through the llvm vcall trampoline.
5757 */
5758 mono_install_imt_trampoline (mini_get_imt_trampoline ());
5759 }
5760 }
5761 #endif
5762
5763 /* This must come after mono_init () in the aot-only case */
5764 mono_exceptions_init ();
5765 mono_install_handler (mono_get_throw_exception ());
5766
5767 mono_icall_init ();
5768
5769 mono_add_internal_call ("System.Diagnostics.StackFrame::get_frame_info",
5770 ves_icall_get_frame_info);
5771 mono_add_internal_call ("System.Diagnostics.StackTrace::get_trace",
5772 ves_icall_get_trace);
5773 mono_add_internal_call ("System.Exception::get_trace",
5774 ves_icall_System_Exception_get_trace);
5775 mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityFrame",
5776 ves_icall_System_Security_SecurityFrame_GetSecurityFrame);
5777 mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityStack",
5778 ves_icall_System_Security_SecurityFrame_GetSecurityStack);
5779 mono_add_internal_call ("Mono.Runtime::mono_runtime_install_handlers",
5780 mono_runtime_install_handlers);
5781
5782
5783 create_helper_signature ();
5784
5785 #define JIT_CALLS_WORK
5786 #ifdef JIT_CALLS_WORK
5787 /* Needs to be called here since register_jit_icall depends on it */
5788 mono_marshal_init ();
5789
5790 mono_arch_register_lowlevel_calls ();
5791 register_icall (mono_profiler_method_enter, "mono_profiler_method_enter", NULL, TRUE);
5792 register_icall (mono_profiler_method_leave, "mono_profiler_method_leave", NULL, TRUE);
5793 register_icall (mono_trace_enter_method, "mono_trace_enter_method", NULL, TRUE);
5794 register_icall (mono_trace_leave_method, "mono_trace_leave_method", NULL, TRUE);
5795 register_icall (mono_get_lmf_addr, "mono_get_lmf_addr", "ptr", TRUE);
5796 register_icall (mono_jit_thread_attach, "mono_jit_thread_attach", "void", TRUE);
5797 register_icall (mono_domain_get, "mono_domain_get", "ptr", TRUE);
5798
5799 register_icall (mono_get_throw_exception (), "mono_arch_throw_exception", "void object", TRUE);
5800 register_icall (mono_get_rethrow_exception (), "mono_arch_rethrow_exception", "void object", TRUE);
5801 #ifdef MONO_ARCH_HAVE_THROW_EXCEPTION_BY_NAME
5802 register_icall (mono_get_throw_exception_by_name (), "mono_arch_throw_exception_by_name", "void ptr", TRUE);
5803 #endif
5804 #if MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION
5805 register_icall (mono_get_throw_corlib_exception (), "mono_arch_throw_corlib_exception",
5806 "void ptr", TRUE);
5807 #endif
5808 register_icall (mono_thread_get_undeniable_exception, "mono_thread_get_undeniable_exception", "object", FALSE);
5809 register_icall (mono_thread_interruption_checkpoint, "mono_thread_interruption_checkpoint", "void", FALSE);
5810 register_icall (mono_thread_force_interruption_checkpoint, "mono_thread_force_interruption_checkpoint", "void", FALSE);
5811 register_icall (mono_load_remote_field_new, "mono_load_remote_field_new", "object object ptr ptr", FALSE);
5812 register_icall (mono_store_remote_field_new, "mono_store_remote_field_new", "void object ptr ptr object", FALSE);
5813
5814 /*
5815 * NOTE, NOTE, NOTE, NOTE:
5816 * when adding emulation for some opcodes, remember to also add a dummy
5817 * rule to the burg files, because we need the arity information to be correct.
5818 */
5819 #ifndef MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
5820 mono_register_opcode_emulation (OP_LMUL, "__emul_lmul", "long long long", mono_llmult, TRUE);
5821 mono_register_opcode_emulation (OP_LDIV, "__emul_ldiv", "long long long", mono_lldiv, FALSE);
5822 mono_register_opcode_emulation (OP_LDIV_UN, "__emul_ldiv_un", "long long long", mono_lldiv_un, FALSE);
5823 mono_register_opcode_emulation (OP_LREM, "__emul_lrem", "long long long", mono_llrem, FALSE);
5824 mono_register_opcode_emulation (OP_LREM_UN, "__emul_lrem_un", "long long long", mono_llrem_un, FALSE);
5825 mono_register_opcode_emulation (OP_LMUL_OVF_UN, "__emul_lmul_ovf_un", "long long long", mono_llmult_ovf_un, FALSE);
5826 mono_register_opcode_emulation (OP_LMUL_OVF, "__emul_lmul_ovf", "long long long", mono_llmult_ovf, FALSE);
5827 #endif
5828
5829 #ifndef MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
5830 mono_register_opcode_emulation (OP_LSHL, "__emul_lshl", "long long int32", mono_lshl, TRUE);
5831 mono_register_opcode_emulation (OP_LSHR, "__emul_lshr", "long long int32", mono_lshr, TRUE);
5832 mono_register_opcode_emulation (OP_LSHR_UN, "__emul_lshr_un", "long long int32", mono_lshr_un, TRUE);
5833 #endif
5834
5835 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_DIV)
5836 mono_register_opcode_emulation (CEE_DIV, "__emul_idiv", "int32 int32 int32", mono_idiv, FALSE);
5837 mono_register_opcode_emulation (CEE_DIV_UN, "__emul_idiv_un", "int32 int32 int32", mono_idiv_un, FALSE);
5838 mono_register_opcode_emulation (CEE_REM, "__emul_irem", "int32 int32 int32", mono_irem, FALSE);
5839 mono_register_opcode_emulation (CEE_REM_UN, "__emul_irem_un", "int32 int32 int32", mono_irem_un, FALSE);
5840 mono_register_opcode_emulation (OP_IDIV, "__emul_op_idiv", "int32 int32 int32", mono_idiv, FALSE);
5841 mono_register_opcode_emulation (OP_IDIV_UN, "__emul_op_idiv_un", "int32 int32 int32", mono_idiv_un, FALSE);
5842 mono_register_opcode_emulation (OP_IREM, "__emul_op_irem", "int32 int32 int32", mono_irem, FALSE);
5843 mono_register_opcode_emulation (OP_IREM_UN, "__emul_op_irem_un", "int32 int32 int32", mono_irem_un, FALSE);
5844 #endif
5845
5846 #ifdef MONO_ARCH_EMULATE_MUL_DIV
5847 mono_register_opcode_emulation (CEE_MUL, "__emul_imul", "int32 int32 int32", mono_imul, TRUE);
5848 mono_register_opcode_emulation (OP_IMUL, "__emul_op_imul", "int32 int32 int32", mono_imul, TRUE);
5849 #endif
5850
5851 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_MUL_OVF)
5852 mono_register_opcode_emulation (CEE_MUL_OVF, "__emul_imul_ovf", "int32 int32 int32", mono_imul_ovf, FALSE);
5853 mono_register_opcode_emulation (CEE_MUL_OVF_UN, "__emul_imul_ovf_un", "int32 int32 int32", mono_imul_ovf_un, FALSE);
5854 mono_register_opcode_emulation (OP_IMUL_OVF, "__emul_op_imul_ovf", "int32 int32 int32", mono_imul_ovf, FALSE);
5855 mono_register_opcode_emulation (OP_IMUL_OVF_UN, "__emul_op_imul_ovf_un", "int32 int32 int32", mono_imul_ovf_un, FALSE);
5856 #endif
5857
5858 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_SOFT_FLOAT)
5859 mono_register_opcode_emulation (OP_FDIV, "__emul_fdiv", "double double double", mono_fdiv, FALSE);
5860 #endif
5861
5862 mono_register_opcode_emulation (OP_FCONV_TO_U8, "__emul_fconv_to_u8", "ulong double", mono_fconv_u8, FALSE);
5863 mono_register_opcode_emulation (OP_FCONV_TO_U4, "__emul_fconv_to_u4", "uint32 double", mono_fconv_u4, FALSE);
5864 mono_register_opcode_emulation (OP_FCONV_TO_OVF_I8, "__emul_fconv_to_ovf_i8", "long double", mono_fconv_ovf_i8, FALSE);
5865 mono_register_opcode_emulation (OP_FCONV_TO_OVF_U8, "__emul_fconv_to_ovf_u8", "ulong double", mono_fconv_ovf_u8, FALSE);
5866
5867 #ifdef MONO_ARCH_EMULATE_FCONV_TO_I8
5868 mono_register_opcode_emulation (OP_FCONV_TO_I8, "__emul_fconv_to_i8", "long double", mono_fconv_i8, FALSE);
5869 #endif
5870 #ifdef MONO_ARCH_EMULATE_CONV_R8_UN
5871 mono_register_opcode_emulation (CEE_CONV_R_UN, "__emul_conv_r_un", "double int32", mono_conv_to_r8_un, FALSE);
5872 mono_register_opcode_emulation (OP_ICONV_TO_R_UN, "__emul_iconv_to_r_un", "double int32", mono_conv_to_r8_un, FALSE);
5873 #endif
5874 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8
5875 mono_register_opcode_emulation (OP_LCONV_TO_R8, "__emul_lconv_to_r8", "double long", mono_lconv_to_r8, FALSE);
5876 #endif
5877 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R4
5878 mono_register_opcode_emulation (OP_LCONV_TO_R4, "__emul_lconv_to_r4", "float long", mono_lconv_to_r4, FALSE);
5879 #endif
5880 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8_UN
5881 mono_register_opcode_emulation (OP_LCONV_TO_R_UN, "__emul_lconv_to_r8_un", "double long", mono_lconv_to_r8_un, FALSE);
5882 #endif
5883 #ifdef MONO_ARCH_EMULATE_FREM
5884 mono_register_opcode_emulation (OP_FREM, "__emul_frem", "double double double", fmod, FALSE);
5885 #endif
5886
5887 #ifdef MONO_ARCH_SOFT_FLOAT
5888 mono_register_opcode_emulation (OP_FSUB, "__emul_fsub", "double double double", mono_fsub, FALSE);
5889 mono_register_opcode_emulation (OP_FADD, "__emul_fadd", "double double double", mono_fadd, FALSE);
5890 mono_register_opcode_emulation (OP_FMUL, "__emul_fmul", "double double double", mono_fmul, FALSE);
5891 mono_register_opcode_emulation (OP_FNEG, "__emul_fneg", "double double", mono_fneg, FALSE);
5892 mono_register_opcode_emulation (CEE_CONV_R8, "__emul_conv_r8", "double int32", mono_conv_to_r8, FALSE);
5893 mono_register_opcode_emulation (OP_ICONV_TO_R8, "__emul_iconv_to_r8", "double int32", mono_conv_to_r8, FALSE);
5894 mono_register_opcode_emulation (CEE_CONV_R4, "__emul_conv_r4", "double int32", mono_conv_to_r4, FALSE);
5895 mono_register_opcode_emulation (OP_ICONV_TO_R4, "__emul_iconv_to_r4", "double int32", mono_conv_to_r4, FALSE);
5896 mono_register_opcode_emulation (OP_FCONV_TO_R4, "__emul_fconv_to_r4", "double double", mono_fconv_r4, FALSE);
5897 mono_register_opcode_emulation (OP_FCONV_TO_I1, "__emul_fconv_to_i1", "int8 double", mono_fconv_i1, FALSE);
5898 mono_register_opcode_emulation (OP_FCONV_TO_I2, "__emul_fconv_to_i2", "int16 double", mono_fconv_i2, FALSE);
5899 mono_register_opcode_emulation (OP_FCONV_TO_I4, "__emul_fconv_to_i4", "int32 double", mono_fconv_i4, FALSE);
5900 mono_register_opcode_emulation (OP_FCONV_TO_U1, "__emul_fconv_to_u1", "uint8 double", mono_fconv_u1, FALSE);
5901 mono_register_opcode_emulation (OP_FCONV_TO_U2, "__emul_fconv_to_u2", "uint16 double", mono_fconv_u2, FALSE);
5902 #if SIZEOF_VOID_P == 4
5903 mono_register_opcode_emulation (OP_FCONV_TO_I, "__emul_fconv_to_i", "int32 double", mono_fconv_i4, FALSE);
5904 #endif
5905
5906 mono_register_opcode_emulation (OP_FBEQ, "__emul_fcmp_eq", "uint32 double double", mono_fcmp_eq, FALSE);
5907 mono_register_opcode_emulation (OP_FBLT, "__emul_fcmp_lt", "uint32 double double", mono_fcmp_lt, FALSE);
5908 mono_register_opcode_emulation (OP_FBGT, "__emul_fcmp_gt", "uint32 double double", mono_fcmp_gt, FALSE);
5909 mono_register_opcode_emulation (OP_FBLE, "__emul_fcmp_le", "uint32 double double", mono_fcmp_le, FALSE);
5910 mono_register_opcode_emulation (OP_FBGE, "__emul_fcmp_ge", "uint32 double double", mono_fcmp_ge, FALSE);
5911 mono_register_opcode_emulation (OP_FBNE_UN, "__emul_fcmp_ne_un", "uint32 double double", mono_fcmp_ne_un, FALSE);
5912 mono_register_opcode_emulation (OP_FBLT_UN, "__emul_fcmp_lt_un", "uint32 double double", mono_fcmp_lt_un, FALSE);
5913 mono_register_opcode_emulation (OP_FBGT_UN, "__emul_fcmp_gt_un", "uint32 double double", mono_fcmp_gt_un, FALSE);
5914 mono_register_opcode_emulation (OP_FBLE_UN, "__emul_fcmp_le_un", "uint32 double double", mono_fcmp_le_un, FALSE);
5915 mono_register_opcode_emulation (OP_FBGE_UN, "__emul_fcmp_ge_un", "uint32 double double", mono_fcmp_ge_un, FALSE);
5916
5917 mono_register_opcode_emulation (OP_FCEQ, "__emul_fcmp_ceq", "uint32 double double", mono_fceq, FALSE);
5918 mono_register_opcode_emulation (OP_FCGT, "__emul_fcmp_cgt", "uint32 double double", mono_fcgt, FALSE);
5919 mono_register_opcode_emulation (OP_FCGT_UN, "__emul_fcmp_cgt_un", "uint32 double double", mono_fcgt_un, FALSE);
5920 mono_register_opcode_emulation (OP_FCLT, "__emul_fcmp_clt", "uint32 double double", mono_fclt, FALSE);
5921 mono_register_opcode_emulation (OP_FCLT_UN, "__emul_fcmp_clt_un", "uint32 double double", mono_fclt_un, FALSE);
5922
5923 register_icall (mono_fload_r4, "mono_fload_r4", "double ptr", FALSE);
5924 register_icall (mono_fstore_r4, "mono_fstore_r4", "void double ptr", FALSE);
5925 register_icall (mono_fload_r4_arg, "mono_fload_r4_arg", "uint32 double", FALSE);
5926 register_icall (mono_isfinite, "mono_isfinite", "uint32 double", FALSE);
5927 #endif
5928
5929 #ifdef COMPRESSED_INTERFACE_BITMAP
5930 register_icall (mono_class_interface_match, "mono_class_interface_match", "uint32 ptr int32", TRUE);
5931 #endif
5932
5933 #if SIZEOF_REGISTER == 4
5934 mono_register_opcode_emulation (OP_FCONV_TO_U, "__emul_fconv_to_u", "uint32 double", mono_fconv_u4, TRUE);
5935 #endif
5936
5937 /* other jit icalls */
5938 register_icall (mono_delegate_ctor, "mono_delegate_ctor", "void object object ptr", FALSE);
5939 register_icall (mono_class_static_field_address , "mono_class_static_field_address",
5940 "ptr ptr ptr", FALSE);
5941 register_icall (mono_ldtoken_wrapper, "mono_ldtoken_wrapper", "ptr ptr ptr ptr", FALSE);
5942 register_icall (mono_ldtoken_wrapper_generic_shared, "mono_ldtoken_wrapper_generic_shared",
5943 "ptr ptr ptr ptr", FALSE);
5944 register_icall (mono_get_special_static_data, "mono_get_special_static_data", "ptr int", FALSE);
5945 register_icall (mono_ldstr, "mono_ldstr", "object ptr ptr int32", FALSE);
5946 register_icall (mono_helper_stelem_ref_check, "helper_stelem_ref_check", "void object object", FALSE);
5947 register_icall (mono_object_new, "mono_object_new", "object ptr ptr", FALSE);
5948 register_icall (mono_object_new_specific, "mono_object_new_specific", "object ptr", FALSE);
5949 register_icall (mono_array_new, "mono_array_new", "object ptr ptr int32", FALSE);
5950 register_icall (mono_array_new_specific, "mono_array_new_specific", "object ptr int32", FALSE);
5951 register_icall (mono_runtime_class_init, "mono_runtime_class_init", "void ptr", FALSE);
5952 register_icall (mono_ldftn, "mono_ldftn", "ptr ptr", FALSE);
5953 register_icall (mono_ldvirtfn, "mono_ldvirtfn", "ptr object ptr", FALSE);
5954 register_icall (mono_ldvirtfn_gshared, "mono_ldvirtfn_gshared", "ptr object ptr", FALSE);
5955 register_icall (mono_helper_compile_generic_method, "compile_generic_method", "ptr object ptr ptr", FALSE);
5956 register_icall (mono_helper_ldstr, "helper_ldstr", "object ptr int", FALSE);
5957 register_icall (mono_helper_ldstr_mscorlib, "helper_ldstr_mscorlib", "object int", FALSE);
5958 register_icall (mono_helper_newobj_mscorlib, "helper_newobj_mscorlib", "object int", FALSE);
5959 register_icall (mono_value_copy, "mono_value_copy", "void ptr ptr ptr", FALSE);
5960 register_icall (mono_object_castclass, "mono_object_castclass", "object object ptr", FALSE);
5961 register_icall (mono_break, "mono_break", NULL, TRUE);
5962 register_icall (mono_create_corlib_exception_0, "mono_create_corlib_exception_0", "object int", TRUE);
5963 register_icall (mono_create_corlib_exception_1, "mono_create_corlib_exception_1", "object int object", TRUE);
5964 register_icall (mono_create_corlib_exception_2, "mono_create_corlib_exception_2", "object int object object", TRUE);
5965 register_icall (mono_array_new_1, "mono_array_new_1", "object ptr int", FALSE);
5966 register_icall (mono_array_new_2, "mono_array_new_2", "object ptr int int", FALSE);
5967 register_icall (mono_array_new_3, "mono_array_new_3", "object ptr int int int", FALSE);
5968 register_icall (mono_get_native_calli_wrapper, "mono_get_native_calli_wrapper", "ptr ptr ptr ptr", FALSE);
5969 #endif
5970
5971 mono_generic_sharing_init ();
5972
5973 #ifdef MONO_ARCH_SIMD_INTRINSICS
5974 mono_simd_intrinsics_init ();
5975 #endif
5976
5977 #if MONO_SUPPORT_TASKLETS
5978 mono_tasklets_init ();
5979 #endif
5980
5981 if (mono_compile_aot)
5982 /*
5983 * Avoid running managed code when AOT compiling, since the platform
5984 * might only support aot-only execution.
5985 */
5986 mono_runtime_set_no_exec (TRUE);
5987
5988 #define JIT_RUNTIME_WORKS
5989 #ifdef JIT_RUNTIME_WORKS
5990 mono_install_runtime_cleanup ((MonoDomainFunc)mini_cleanup);
5991 mono_runtime_init (domain, mono_thread_start_cb, mono_thread_attach_cb);
5992 mono_thread_attach (domain);
5993 #endif
5994
5995 mono_profiler_runtime_initialized ();
5996
5997 MONO_PROBE_VES_INIT_END ();
5998
5999 return domain;
6000 }
6001
6002 MonoJitStats mono_jit_stats = {0};
6003
6004 static void
6005 print_jit_stats (void)
6006 {
6007 if (mono_jit_stats.enabled) {
6008 g_print ("Mono Jit statistics\n");
6009 g_print ("Compiled methods: %ld\n", mono_jit_stats.methods_compiled);
6010 g_print ("Methods from AOT: %ld\n", mono_jit_stats.methods_aot);
6011 g_print ("Methods cache lookup: %ld\n", mono_jit_stats.methods_lookups);
6012 g_print ("Method trampolines: %ld\n", mono_jit_stats.method_trampolines);
6013 g_print ("Basic blocks: %ld\n", mono_jit_stats.basic_blocks);
6014 g_print ("Max basic blocks: %ld\n", mono_jit_stats.max_basic_blocks);
6015 g_print ("Allocated vars: %ld\n", mono_jit_stats.allocate_var);
6016 g_print ("Compiled CIL code size: %ld\n", mono_jit_stats.cil_code_size);
6017 g_print ("Native code size: %ld\n", mono_jit_stats.native_code_size);
6018 g_print ("Max code size ratio: %.2f (%s)\n", mono_jit_stats.max_code_size_ratio/100.0,
6019 mono_jit_stats.max_ratio_method);
6020 g_print ("Biggest method: %ld (%s)\n", mono_jit_stats.biggest_method_size,
6021 mono_jit_stats.biggest_method);
6022 g_print ("Code reallocs: %ld\n", mono_jit_stats.code_reallocs);
6023 g_print ("Allocated code size: %ld\n", mono_jit_stats.allocated_code_size);
6024 g_print ("Inlineable methods: %ld\n", mono_jit_stats.inlineable_methods);
6025 g_print ("Inlined methods: %ld\n", mono_jit_stats.inlined_methods);
6026 g_print ("Regvars: %ld\n", mono_jit_stats.regvars);
6027 g_print ("Locals stack size: %ld\n", mono_jit_stats.locals_stack_size);
6028
6029 g_print ("\nCreated object count: %ld\n", mono_stats.new_object_count);
6030 g_print ("Delegates created: %ld\n", mono_stats.delegate_creations);
6031 g_print ("Initialized classes: %ld\n", mono_stats.initialized_class_count);
6032 g_print ("Used classes: %ld\n", mono_stats.used_class_count);
6033 g_print ("Generic vtables: %ld\n", mono_stats.generic_vtable_count);
6034 g_print ("Methods: %ld\n", mono_stats.method_count);
6035 g_print ("Static data size: %ld\n", mono_stats.class_static_data_size);
6036 g_print ("VTable data size: %ld\n", mono_stats.class_vtable_size);
6037 g_print ("Mscorlib mempool size: %d\n", mono_mempool_get_allocated (mono_defaults.corlib->mempool));
6038
6039 g_print ("\nInitialized classes: %ld\n", mono_stats.generic_class_count);
6040 g_print ("Inflated types: %ld\n", mono_stats.inflated_type_count);
6041 g_print ("Generics virtual invokes: %ld\n", mono_jit_stats.generic_virtual_invocations);
6042
6043 g_print ("Sharable generic methods: %ld\n", mono_stats.generics_sharable_methods);
6044 g_print ("Unsharable generic methods: %ld\n", mono_stats.generics_unsharable_methods);
6045 g_print ("Shared generic methods: %ld\n", mono_stats.generics_shared_methods);
6046
6047 g_print ("Dynamic code allocs: %ld\n", mono_stats.dynamic_code_alloc_count);
6048 g_print ("Dynamic code bytes: %ld\n", mono_stats.dynamic_code_bytes_count);
6049 g_print ("Dynamic code frees: %ld\n", mono_stats.dynamic_code_frees_count);
6050
6051 g_print ("IMT tables size: %ld\n", mono_stats.imt_tables_size);
6052 g_print ("IMT number of tables: %ld\n", mono_stats.imt_number_of_tables);
6053 g_print ("IMT number of methods: %ld\n", mono_stats.imt_number_of_methods);
6054 g_print ("IMT used slots: %ld\n", mono_stats.imt_used_slots);
6055 g_print ("IMT colliding slots: %ld\n", mono_stats.imt_slots_with_collisions);
6056 g_print ("IMT max collisions: %ld\n", mono_stats.imt_max_collisions_in_slot);
6057 g_print ("IMT methods at max col: %ld\n", mono_stats.imt_method_count_when_max_collisions);
6058 g_print ("IMT thunks size: %ld\n", mono_stats.imt_thunks_size);
6059
6060 g_print ("JIT info table inserts: %ld\n", mono_stats.jit_info_table_insert_count);
6061 g_print ("JIT info table removes: %ld\n", mono_stats.jit_info_table_remove_count);
6062 g_print ("JIT info table lookups: %ld\n", mono_stats.jit_info_table_lookup_count);
6063
6064 g_print ("Hazardous pointers: %ld\n", mono_stats.hazardous_pointer_count);
6065 #ifdef HAVE_SGEN_GC
6066 g_print ("Minor GC collections: %ld\n", mono_stats.minor_gc_count);
6067 #endif
6068 g_print ("Major GC collections: %ld\n", mono_stats.major_gc_count);
6069 #ifdef HAVE_SGEN_GC
6070 g_print ("Minor GC time in msecs: %lf\n", (double)mono_stats.minor_gc_time_usecs / 1000.0);
6071 #endif
6072 g_print ("Major GC time in msecs: %lf\n", (double)mono_stats.major_gc_time_usecs / 1000.0);
6073 if (mono_security_get_mode () == MONO_SECURITY_MODE_CAS) {
6074 g_print ("\nDecl security check : %ld\n", mono_jit_stats.cas_declsec_check);
6075 g_print ("LinkDemand (user) : %ld\n", mono_jit_stats.cas_linkdemand);
6076 g_print ("LinkDemand (icall) : %ld\n", mono_jit_stats.cas_linkdemand_icall);
6077 g_print ("LinkDemand (pinvoke) : %ld\n", mono_jit_stats.cas_linkdemand_pinvoke);
6078 g_print ("LinkDemand (aptc) : %ld\n", mono_jit_stats.cas_linkdemand_aptc);
6079 g_print ("Demand (code gen) : %ld\n", mono_jit_stats.cas_demand_generation);
6080 }
6081
6082 g_free (mono_jit_stats.max_ratio_method);
6083 mono_jit_stats.max_ratio_method = NULL;
6084 g_free (mono_jit_stats.biggest_method);
6085 mono_jit_stats.biggest_method = NULL;
6086 }
6087 }
6088
6089 void
6090 mini_cleanup (MonoDomain *domain)
6091 {
6092 mono_runtime_shutdown_stat_profiler ();
6093
6094 #ifndef DISABLE_COM
6095 cominterop_release_all_rcws ();
6096 #endif
6097
6098 #ifndef MONO_CROSS_COMPILE
6099 /*
6100 * mono_runtime_cleanup() and mono_domain_finalize () need to
6101 * be called early since they need the execution engine still
6102 * fully working (mono_domain_finalize may invoke managed finalizers
6103 * and mono_runtime_cleanup will wait for other threads to finish).
6104 */
6105 mono_domain_finalize (domain, 2000);
6106 #endif
6107
6108 /* This accesses metadata so needs to be called before runtime shutdown */
6109 print_jit_stats ();
6110
6111 mono_profiler_shutdown ();
6112
6113 #ifndef MONO_CROSS_COMPILE
6114 mono_runtime_cleanup (domain);
6115 #endif
6116
6117 mono_icall_cleanup ();
6118
6119 mono_runtime_cleanup_handlers ();
6120
6121 mono_domain_free (domain, TRUE);
6122
6123 mono_debugger_cleanup ();
6124
6125 #ifdef ENABLE_LLVM
6126 mono_llvm_cleanup ();
6127 #endif
6128
6129 mono_trampolines_cleanup ();
6130
6131 mono_unwind_cleanup ();
6132
6133 if (!mono_dont_free_global_codeman)
6134 mono_code_manager_destroy (global_codeman);
6135 g_hash_table_destroy (jit_icall_name_hash);
6136 g_free (emul_opcode_map);
6137 g_free (emul_opcode_opcodes);
6138
6139 mono_arch_cleanup ();
6140
6141 mono_cleanup ();
6142
6143 mono_trace_cleanup ();
6144
6145 mono_counters_dump (-1, stdout);
6146
6147 if (mono_inject_async_exc_method)
6148 mono_method_desc_free (mono_inject_async_exc_method);
6149
6150 TlsFree(mono_jit_tls_id);
6151
6152 DeleteCriticalSection (&jit_mutex);
6153
6154 DeleteCriticalSection (&mono_delegate_section);
6155 }
6156
6157 void
6158 mono_set_defaults (int verbose_level, guint32 opts)
6159 {
6160 mini_verbose = verbose_level;
6161 default_opt = opts;
6162 default_opt_set = TRUE;
6163 }
6164
6165 void
6166 mono_disable_optimizations (guint32 opts)
6167 {
6168 default_opt &= ~opts;
6169 }
6170
6171 /*
6172 * mono_get_runtime_build_info:
6173 *
6174 * Return the runtime version + build date in string format.
6175 * The returned string is owned by the caller.
6176 */
6177 char*
6178 mono_get_runtime_build_info (void)
6179 {
6180 if (mono_build_date)
6181 return g_strdup_printf ("%s (%s %s)", VERSION, FULL_VERSION, mono_build_date);
6182 else
6183 return g_strdup_printf ("%s (%s)", VERSION, FULL_VERSION);
6184 }
6185
6186 static void
6187 mono_precompile_assembly (MonoAssembly *ass, void *user_data)
6188 {
6189 GHashTable *assemblies = (GHashTable*)user_data;
6190 MonoImage *image = mono_assembly_get_image (ass);
6191 MonoMethod *method, *invoke;
6192 int i, count = 0;
6193
6194 if (g_hash_table_lookup (assemblies, ass))
6195 return;
6196
6197 g_hash_table_insert (assemblies, ass, ass);
6198
6199 if (mini_verbose > 0)
6200 printf ("PRECOMPILE: %s.\n", mono_image_get_filename (image));
6201
6202 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
6203 method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
6204 if (method->flags & METHOD_ATTRIBUTE_ABSTRACT)
6205 continue;
6206
6207 count++;
6208 if (mini_verbose > 1) {
6209 char * desc = mono_method_full_name (method, TRUE);
6210 g_print ("Compiling %d %s\n", count, desc);
6211 g_free (desc);
6212 }
6213 mono_compile_method (method);
6214 if (strcmp (method->name, "Finalize") == 0) {
6215 invoke = mono_marshal_get_runtime_invoke (method, FALSE);
6216 mono_compile_method (invoke);
6217 }
6218 if (method->klass->marshalbyref && mono_method_signature (method)->hasthis) {
6219 invoke = mono_marshal_get_remoting_invoke_with_check (method);
6220 mono_compile_method (invoke);
6221 }
6222 }
6223
6224 /* Load and precompile referenced assemblies as well */
6225 for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_ASSEMBLYREF); ++i) {
6226 mono_assembly_load_reference (image, i);
6227 if (image->references [i])
6228 mono_precompile_assembly (image->references [i], assemblies);
6229 }
6230 }
6231
6232 void mono_precompile_assemblies ()
6233 {
6234 GHashTable *assemblies = g_hash_table_new (NULL, NULL);
6235
6236 mono_assembly_foreach ((GFunc)mono_precompile_assembly, assemblies);
6237
6238 g_hash_table_destroy (assemblies);
6239 }
6240
6241 #ifndef DISABLE_JIT
6242
6243 void*
6244 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments) {
6245 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
6246 }
6247
6248 void
6249 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
6250 {
6251 TryBlockHole *hole = mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
6252 hole->clause = clause;
6253 hole->start_offset = start - cfg->native_code;
6254 hole->basic_block = bb;
6255
6256 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
6257 }
6258
6259 #endif
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