2 * (C) 2003 Ximian, Inc.
3 * (C) 2003-2011 Novell, Inc.
4 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
9 #include <mono/metadata/appdomain.h>
10 #include <mono/metadata/metadata-internals.h>
11 #include <mono/metadata/marshal.h>
12 #include <mono/metadata/tabledefs.h>
13 #include <mono/utils/mono-counters.h>
14 #include <mono/utils/mono-error-internals.h>
17 #include "debug-mini.h"
20 * Address of the trampoline code. This is used by the debugger to check
21 * whether a method is a trampoline.
23 guint8* mono_trampoline_code [MONO_TRAMPOLINE_NUM];
25 static GHashTable *class_init_hash_addr = NULL;
26 static GHashTable *rgctx_lazy_fetch_trampoline_hash = NULL;
27 static GHashTable *rgctx_lazy_fetch_trampoline_hash_addr = NULL;
28 static guint32 trampoline_calls, jit_trampolines, unbox_trampolines, static_rgctx_trampolines;
30 #define mono_trampolines_lock() EnterCriticalSection (&trampolines_mutex)
31 #define mono_trampolines_unlock() LeaveCriticalSection (&trampolines_mutex)
32 static CRITICAL_SECTION trampolines_mutex;
35 get_unbox_trampoline (MonoMethod *m, gpointer addr, gboolean need_rgctx_tramp)
40 * The unbox trampolines call the method directly, so need to add
41 * an rgctx tramp before them.
43 return mono_create_static_rgctx_trampoline (m, mono_aot_get_unbox_trampoline (m));
45 return mono_aot_get_unbox_trampoline (m);
48 return mono_arch_get_unbox_trampoline (m, addr);
52 #ifdef MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE
60 rgctx_tramp_info_equal (gconstpointer ka, gconstpointer kb)
62 const RgctxTrampInfo *i1 = ka;
63 const RgctxTrampInfo *i2 = kb;
65 if (i1->m == i2->m && i1->addr == i2->addr)
72 rgctx_tramp_info_hash (gconstpointer data)
74 const RgctxTrampInfo *info = data;
76 return GPOINTER_TO_UINT (info->m) ^ GPOINTER_TO_UINT (info->addr);
80 * mono_create_static_rgctx_trampoline:
82 * Return a static rgctx trampoline for M which branches to ADDR which should
83 * point to the compiled code of M.
85 * Static rgctx trampolines are used when a shared generic method which doesn't
86 * have a this argument is called indirectly, ie. from code which can't pass in
87 * the rgctx argument. The trampoline sets the rgctx argument and jumps to the
88 * methods code. These trampolines are similar to the unbox trampolines, they
89 * perform the same task as the static rgctx wrappers, but they are smaller/faster,
90 * and can be made to work with full AOT.
91 * On PPC addr should be an ftnptr and the return value is an ftnptr too.
94 mono_create_static_rgctx_trampoline (MonoMethod *m, gpointer addr)
99 RgctxTrampInfo tmp_info;
100 RgctxTrampInfo *info;
102 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
103 g_assert (((gpointer*)addr) [2] == 0);
106 if (mini_method_get_context (m)->method_inst)
107 ctx = mono_method_lookup_rgctx (mono_class_vtable (mono_domain_get (), m->klass), mini_method_get_context (m)->method_inst);
109 ctx = mono_class_vtable (mono_domain_get (), m->klass);
111 domain = mono_domain_get ();
114 * In the AOT case, addr might point to either the method, or to an unbox trampoline,
115 * so make the hash keyed on the m+addr pair.
117 mono_domain_lock (domain);
118 if (!domain_jit_info (domain)->static_rgctx_trampoline_hash)
119 domain_jit_info (domain)->static_rgctx_trampoline_hash = g_hash_table_new (rgctx_tramp_info_hash, rgctx_tramp_info_equal);
121 tmp_info.addr = addr;
122 res = g_hash_table_lookup (domain_jit_info (domain)->static_rgctx_trampoline_hash,
124 mono_domain_unlock (domain);
129 res = mono_aot_get_static_rgctx_trampoline (ctx, addr);
131 res = mono_arch_get_static_rgctx_trampoline (m, ctx, addr);
133 mono_domain_lock (domain);
134 /* Duplicates inserted while we didn't hold the lock are OK */
135 info = mono_domain_alloc (domain, sizeof (RgctxTrampInfo));
138 g_hash_table_insert (domain_jit_info (domain)->static_rgctx_trampoline_hash, info, res);
139 mono_domain_unlock (domain);
141 static_rgctx_trampolines ++;
147 mono_create_static_rgctx_trampoline (MonoMethod *m, gpointer addr)
150 * This shouldn't happen as all arches which support generic sharing support
151 * static rgctx trampolines as well.
153 g_assert_not_reached ();
157 #ifdef MONO_ARCH_HAVE_IMT
160 * Either IMPL_METHOD or AOT_ADDR will be set on return.
165 * This works against problems when compiling with gcc 4.6 on arm. The 'then' part of
166 * this line gets executed, even when the condition is false:
167 * if (impl && mono_method_needs_static_rgctx_invoke (impl, FALSE))
168 * *need_rgctx_tramp = TRUE;
170 __attribute__ ((noinline))
172 mono_convert_imt_slot_to_vtable_slot (gpointer* slot, mgreg_t *regs, guint8 *code, MonoMethod *method, MonoMethod **impl_method, gboolean *need_rgctx_tramp, gboolean *variance_used, gpointer *aot_addr)
174 MonoObject *this_argument = mono_arch_get_this_arg_from_call (regs, code);
175 MonoVTable *vt = this_argument->vtable;
176 int displacement = slot - ((gpointer*)vt);
178 if (displacement > 0) {
179 /* slot is in the vtable, not in the IMT */
181 printf ("mono_convert_imt_slot_to_vtable_slot: slot %p is in the vtable, not in the IMT\n", slot);
185 MonoMethod *imt_method = mono_arch_find_imt_method (regs, code);
187 int interface_offset;
188 int imt_slot = MONO_IMT_SIZE + displacement;
190 /*This has to be variance aware since imt_method can be from an interface that vt->klass doesn't directly implement*/
191 interface_offset = mono_class_interface_offset_with_variance (vt->klass, imt_method->klass, variance_used);
193 if (interface_offset < 0) {
194 g_error ("%s doesn't implement interface %s\n", mono_type_get_name_full (&vt->klass->byval_arg, 0), mono_type_get_name_full (&imt_method->klass->byval_arg, 0));
196 mono_vtable_build_imt_slot (vt, mono_method_get_imt_slot (imt_method));
198 if (imt_method->is_inflated && ((MonoMethodInflated*)imt_method)->context.method_inst) {
199 MonoGenericContext context = { NULL, NULL };
202 * Generic virtual method, imt_method contains the inflated interface
203 * method, need to get the inflated impl method.
205 /* imt_method->slot might not be set */
206 impl = mono_class_get_vtable_entry (vt->klass, interface_offset + mono_method_get_declaring_generic_method (imt_method)->slot);
208 if (impl->klass->generic_class)
209 context.class_inst = impl->klass->generic_class->context.class_inst;
210 context.method_inst = ((MonoMethodInflated*)imt_method)->context.method_inst;
211 impl = mono_class_inflate_generic_method (impl, &context);
213 /* Avoid loading metadata or creating a generic vtable if possible */
214 if (!vt->klass->valuetype)
215 *aot_addr = mono_aot_get_method_from_vt_slot (mono_domain_get (), vt, interface_offset + mono_method_get_vtable_slot (imt_method));
221 impl = mono_class_get_vtable_entry (vt->klass, interface_offset + mono_method_get_vtable_slot (imt_method));
224 if (impl && mono_method_needs_static_rgctx_invoke (impl, FALSE))
225 *need_rgctx_tramp = TRUE;
229 printf ("mono_convert_imt_slot_to_vtable_slot: method = %s.%s.%s, imt_method = %s.%s.%s\n",
230 method->klass->name_space, method->klass->name, method->name,
231 imt_method->klass->name_space, imt_method->klass->name, imt_method->name);
234 g_assert (imt_slot < MONO_IMT_SIZE);
235 if (vt->imt_collisions_bitmap & (1 << imt_slot)) {
236 int slot = mono_method_get_vtable_index (imt_method);
238 gpointer *vtable_slot;
240 g_assert (slot != -1);
241 vtable_offset = interface_offset + slot;
242 vtable_slot = & (vt->vtable [vtable_offset]);
244 printf ("mono_convert_imt_slot_to_vtable_slot: slot %p[%d] is in the IMT, and colliding becomes %p[%d] (interface_offset = %d, method->slot = %d)\n", slot, imt_slot, vtable_slot, vtable_offset, interface_offset, imt_method->slot);
249 printf ("mono_convert_imt_slot_to_vtable_slot: slot %p[%d] is in the IMT, but not colliding\n", slot, imt_slot);
258 * This is a super-ugly hack to fix bug #616463.
260 * The problem is that we don't always set is_generic for generic
261 * method definitions. See the comment at the end of
262 * mono_class_inflate_generic_method_full_checked() in class.c.
265 is_generic_method_definition (MonoMethod *m)
267 MonoGenericContext *context;
273 context = mono_method_get_context (m);
274 if (!context->method_inst)
276 if (context->method_inst == mono_method_get_generic_container (((MonoMethodInflated*)m)->declaring)->context.method_inst)
282 * common_call_trampoline:
284 * The code to handle normal, virtual, and interface method calls and jumps, both
285 * from JITted and LLVM compiled code.
288 common_call_trampoline (mgreg_t *regs, guint8 *code, MonoMethod *m, guint8* tramp, MonoVTable *vt, gpointer *vtable_slot, gboolean need_rgctx_tramp)
290 gpointer addr, compiled_method;
291 gboolean generic_shared = FALSE;
292 MonoMethod *declaring = NULL;
293 MonoMethod *generic_virtual = NULL, *variant_iface = NULL;
295 gboolean virtual, variance_used = FALSE;
296 gpointer *orig_vtable_slot, *vtable_slot_to_patch = NULL;
297 MonoJitInfo *ji = NULL;
299 virtual = (gpointer)vtable_slot > (gpointer)vt;
301 orig_vtable_slot = vtable_slot;
302 vtable_slot_to_patch = vtable_slot;
304 #ifdef MONO_ARCH_HAVE_IMT
306 if (vt && (gpointer)vtable_slot < (gpointer)vt) {
307 MonoMethod *impl_method = NULL;
308 MonoObject *this_arg;
310 /* we get the interface method because mono_convert_imt_slot_to_vtable_slot ()
311 * needs the signature to be able to find the this argument
313 m = mono_arch_find_imt_method (regs, code);
314 vtable_slot = orig_vtable_slot;
315 g_assert (vtable_slot);
317 this_arg = mono_arch_get_this_arg_from_call (regs, code);
319 if (this_arg->vtable->klass == mono_defaults.transparent_proxy_class) {
320 /* Use the slow path for now */
321 m = mono_object_get_virtual_method (this_arg, m);
322 vtable_slot_to_patch = NULL;
325 vtable_slot = mono_convert_imt_slot_to_vtable_slot (vtable_slot, regs, code, m, &impl_method, &need_rgctx_tramp, &variance_used, &addr);
326 /* This is the vcall slot which gets called through the IMT thunk */
327 vtable_slot_to_patch = vtable_slot;
328 /* mono_convert_imt_slot_to_vtable_slot () also gives us the method that is supposed
329 * to be called, so we compile it and go ahead as usual.
331 /*g_print ("imt found method %p (%s) at %p\n", impl_method, impl_method->name, code);*/
332 if (m->is_inflated && ((MonoMethodInflated*)m)->context.method_inst) {
333 /* Generic virtual method */
335 need_rgctx_tramp = TRUE;
336 } else if (variance_used && mono_class_has_variant_generic_params (m->klass)) {
340 if (addr && !generic_virtual && !variant_iface) {
342 * We found AOT compiled code for the method, skip the rest.
344 if (mono_domain_owns_vtable_slot (mono_domain_get (), vtable_slot))
347 return mono_create_ftnptr (mono_domain_get (), addr);
356 * The virtual check is needed because is_generic_method_definition (m) could
357 * return TRUE for methods used in IMT calls too.
359 if (virtual && is_generic_method_definition (m)) {
360 MonoGenericContext context = { NULL, NULL };
361 MonoMethod *declaring;
364 declaring = mono_method_get_declaring_generic_method (m);
368 if (m->klass->generic_class)
369 context.class_inst = m->klass->generic_class->context.class_inst;
371 g_assert (!m->klass->generic_container);
373 #ifdef MONO_ARCH_HAVE_IMT
374 generic_virtual = mono_arch_find_imt_method (regs, code);
376 if (generic_virtual) {
377 g_assert (generic_virtual->is_inflated);
378 context.method_inst = ((MonoMethodInflated*)generic_virtual)->context.method_inst;
381 m = mono_class_inflate_generic_method (declaring, &context);
382 /* FIXME: only do this if the method is sharable */
383 need_rgctx_tramp = TRUE;
384 } else if ((context_used = mono_method_check_context_used (m))) {
385 MonoClass *klass = NULL;
386 MonoMethod *actual_method = NULL;
387 MonoVTable *vt = NULL;
388 MonoGenericInst *method_inst = NULL;
391 generic_shared = TRUE;
395 if (m->is_inflated && mono_method_get_context (m)->method_inst) {
396 #ifdef MONO_ARCH_RGCTX_REG
397 MonoMethodRuntimeGenericContext *mrgctx = (MonoMethodRuntimeGenericContext*)mono_arch_find_static_call_vtable (regs, code);
399 klass = mrgctx->class_vtable->klass;
400 method_inst = mrgctx->method_inst;
402 g_assert_not_reached ();
404 } else if ((m->flags & METHOD_ATTRIBUTE_STATIC) || m->klass->valuetype) {
405 #ifdef MONO_ARCH_RGCTX_REG
406 MonoVTable *vtable = mono_arch_find_static_call_vtable (regs, code);
408 klass = vtable->klass;
410 g_assert_not_reached ();
413 #ifdef MONO_ARCH_HAVE_IMT
414 MonoObject *this_argument = mono_arch_get_this_arg_from_call (regs, code);
416 vt = this_argument->vtable;
417 vtable_slot = orig_vtable_slot;
419 g_assert (this_argument->vtable->klass->inited);
420 //mono_class_init (this_argument->vtable->klass);
423 klass = this_argument->vtable->klass->supertypes [m->klass->idepth - 1];
429 g_assert (vtable_slot || klass);
432 int displacement = vtable_slot - ((gpointer*)vt);
434 g_assert_not_reached ();
436 g_assert (displacement > 0);
438 actual_method = vt->klass->vtable [displacement];
442 MonoGenericContext context = { NULL, NULL };
445 declaring = mono_method_get_declaring_generic_method (m);
449 if (klass->generic_class)
450 context.class_inst = klass->generic_class->context.class_inst;
451 else if (klass->generic_container)
452 context.class_inst = klass->generic_container->context.class_inst;
453 context.method_inst = method_inst;
455 actual_method = mono_class_inflate_generic_method (declaring, &context);
457 actual_method = mono_class_get_method_generic (klass, m);
461 g_assert (actual_method);
462 g_assert (actual_method->klass == klass);
464 if (actual_method->is_inflated)
465 declaring = mono_method_get_declaring_generic_method (actual_method);
472 if (m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) {
476 ji = mini_jit_info_table_find (mono_domain_get (), (char*)code, NULL);
480 /* Avoid recursion */
481 if (!(ji && ji->method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)) {
482 m = mono_marshal_get_synchronized_wrapper (m);
483 need_rgctx_tramp = FALSE;
487 /* Calls made through delegates on platforms without delegate trampolines */
488 if (!code && mono_method_needs_static_rgctx_invoke (m, FALSE))
489 need_rgctx_tramp = TRUE;
491 addr = compiled_method = mono_compile_method (m);
494 mono_debugger_trampoline_compiled (code, m, addr);
496 if (need_rgctx_tramp)
497 addr = mono_create_static_rgctx_trampoline (m, addr);
499 if (generic_virtual || variant_iface) {
500 MonoMethod *target = generic_virtual ? generic_virtual : variant_iface;
502 vtable_slot = orig_vtable_slot;
503 g_assert (vtable_slot);
505 if (vt->klass->valuetype) /*FIXME is this required variant iface?*/
506 addr = get_unbox_trampoline (m, addr, need_rgctx_tramp);
508 mono_method_add_generic_virtual_invocation (mono_domain_get (),
515 /* the method was jumped to */
517 MonoDomain *domain = mono_domain_get ();
519 /* Patch the got entries pointing to this method */
521 * We do this here instead of in mono_codegen () to cover the case when m
522 * was loaded from an aot image.
524 if (domain_jit_info (domain)->jump_target_got_slot_hash) {
527 mono_domain_lock (domain);
528 list = g_hash_table_lookup (domain_jit_info (domain)->jump_target_got_slot_hash, m);
530 for (tmp = list; tmp; tmp = tmp->next) {
531 gpointer *got_slot = tmp->data;
534 g_hash_table_remove (domain_jit_info (domain)->jump_target_got_slot_hash, m);
537 mono_domain_unlock (domain);
543 vtable_slot = orig_vtable_slot;
546 if (m->klass->valuetype)
547 addr = get_unbox_trampoline (m, addr, need_rgctx_tramp);
549 if (vtable_slot_to_patch && (mono_aot_is_got_entry (code, (guint8*)vtable_slot_to_patch) || mono_domain_owns_vtable_slot (mono_domain_get (), vtable_slot_to_patch))) {
550 g_assert (*vtable_slot_to_patch);
551 *vtable_slot_to_patch = mono_get_addr_from_ftnptr (addr);
555 guint8 *plt_entry = mono_aot_get_plt_entry (code);
558 mono_aot_patch_plt_entry (plt_entry, NULL, regs, addr);
560 if (generic_shared) {
561 if (m->wrapper_type != MONO_WRAPPER_NONE)
562 m = mono_marshal_method_from_wrapper (m);
563 g_assert (mono_method_is_generic_sharable_impl (m, FALSE));
566 /* Patch calling code */
568 MonoJitInfo *target_ji =
569 mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (compiled_method));
571 target_ji = mono_jit_info_table_find (mono_get_root_domain (), mono_get_addr_from_ftnptr (compiled_method));
574 ji = mono_jit_info_table_find (mono_domain_get (), (char*)code);
576 ji = mono_jit_info_table_find (mono_get_root_domain (), (char*)code);
578 if (mono_method_same_domain (ji, target_ji))
579 mono_arch_patch_callsite (ji->code_start, code, addr);
588 * mono_magic_trampoline:
590 * This trampoline handles normal calls from JITted code.
593 mono_magic_trampoline (mgreg_t *regs, guint8 *code, gpointer arg, guint8* tramp)
597 return common_call_trampoline (regs, code, arg, tramp, NULL, NULL, FALSE);
601 * mono_vcall_trampoline:
603 * This trampoline handles virtual calls.
606 mono_vcall_trampoline (mgreg_t *regs, guint8 *code, int slot, guint8 *tramp)
610 gpointer *vtable_slot;
612 gboolean need_rgctx_tramp = FALSE;
618 * We need to obtain the following pieces of information:
619 * - the method which needs to be compiled.
621 * We use one vtable trampoline per vtable slot index, so we need only the vtable,
622 * the other two can be computed from the vtable + the slot index.
624 #ifndef MONO_ARCH_THIS_AS_FIRST_ARG
625 /* All architectures should support this */
626 g_assert_not_reached ();
630 * Obtain the vtable from the 'this' arg.
632 this = mono_arch_get_this_arg_from_call (regs, code);
638 /* Normal virtual call */
639 vtable_slot = &(vt->vtable [slot]);
641 /* Avoid loading metadata or creating a generic vtable if possible */
642 addr = mono_aot_get_method_from_vt_slot (mono_domain_get (), vt, slot);
643 if (addr && !vt->klass->valuetype) {
644 if (mono_domain_owns_vtable_slot (mono_domain_get (), vtable_slot))
647 return mono_create_ftnptr (mono_domain_get (), addr);
652 * is_generic_method_definition() above) also
653 * goes away if we do a
654 * mono_class_setup_vtable (vt->klass) here,
655 * because we then inflate the method
656 * correctly, put it in the cache, and the
657 * "wrong" inflation invocation still looks up
658 * the correctly inflated method.
660 * The hack above seems more stable and
663 m = mono_class_get_vtable_entry (vt->klass, slot);
665 need_rgctx_tramp = mono_method_needs_static_rgctx_invoke (m, 0);
668 vtable_slot = &(((gpointer*)vt) [slot]);
671 need_rgctx_tramp = FALSE;
674 return common_call_trampoline (regs, code, m, tramp, vt, vtable_slot, need_rgctx_tramp);
678 mono_generic_virtual_remoting_trampoline (mgreg_t *regs, guint8 *code, MonoMethod *m, guint8 *tramp)
680 MonoGenericContext context = { NULL, NULL };
681 MonoMethod *imt_method, *declaring;
686 g_assert (m->is_generic);
689 declaring = mono_method_get_declaring_generic_method (m);
693 if (m->klass->generic_class)
694 context.class_inst = m->klass->generic_class->context.class_inst;
696 g_assert (!m->klass->generic_container);
698 #ifdef MONO_ARCH_HAVE_IMT
699 imt_method = mono_arch_find_imt_method (regs, code);
700 if (imt_method->is_inflated)
701 context.method_inst = ((MonoMethodInflated*)imt_method)->context.method_inst;
703 m = mono_class_inflate_generic_method (declaring, &context);
704 m = mono_marshal_get_remoting_invoke_with_check (m);
706 addr = mono_compile_method (m);
709 mono_debugger_trampoline_compiled (NULL, m, addr);
715 * mono_aot_trampoline:
717 * This trampoline handles calls made from AOT code. We try to bypass the
718 * normal JIT compilation logic to avoid loading the metadata for the method.
720 #ifdef MONO_ARCH_AOT_SUPPORTED
722 mono_aot_trampoline (mgreg_t *regs, guint8 *code, guint8 *token_info,
727 MonoMethod *method = NULL;
733 image = *(gpointer*)(gpointer)token_info;
734 token_info += sizeof (gpointer);
735 token = *(guint32*)(gpointer)token_info;
737 addr = mono_aot_get_method_from_token (mono_domain_get (), image, token);
739 method = mono_get_method (image, token, NULL);
742 /* Use the generic code */
743 return mono_magic_trampoline (regs, code, method, tramp);
746 addr = mono_create_ftnptr (mono_domain_get (), addr);
748 /* This is a normal call through a PLT entry */
749 plt_entry = mono_aot_get_plt_entry (code);
750 g_assert (plt_entry);
752 mono_aot_patch_plt_entry (plt_entry, NULL, regs, addr);
758 * mono_aot_plt_trampoline:
760 * This trampoline handles calls made from AOT code through the PLT table.
763 mono_aot_plt_trampoline (mgreg_t *regs, guint8 *code, guint8 *aot_module,
766 guint32 plt_info_offset = mono_aot_get_plt_info_offset (regs, code);
771 res = mono_aot_plt_resolve (aot_module, plt_info_offset, code);
773 if (mono_loader_get_last_error ())
774 mono_raise_exception (mono_loader_error_prepare_exception (mono_loader_get_last_error ()));
775 // FIXME: Error handling (how ?)
784 * mono_class_init_trampoline:
786 * This method calls mono_runtime_class_init () to run the static constructor
787 * for the type, then patches the caller code so it is not called again.
790 mono_class_init_trampoline (mgreg_t *regs, guint8 *code, MonoVTable *vtable, guint8 *tramp)
792 guint8 *plt_entry = mono_aot_get_plt_entry (code);
796 mono_runtime_class_init (vtable);
799 mono_arch_nullify_plt_entry (plt_entry, regs);
801 mono_arch_nullify_class_init_trampoline (code, regs);
806 * mono_generic_class_init_trampoline:
808 * This method calls mono_runtime_class_init () to run the static constructor
812 mono_generic_class_init_trampoline (mgreg_t *regs, guint8 *code, MonoVTable *vtable, guint8 *tramp)
816 mono_runtime_class_init (vtable);
820 mono_rgctx_lazy_fetch_trampoline (mgreg_t *regs, guint8 *code, gpointer data, guint8 *tramp)
822 #ifdef MONO_ARCH_VTABLE_REG
823 static gboolean inited = FALSE;
824 static int num_lookups = 0;
825 guint32 slot = GPOINTER_TO_UINT (data);
826 mgreg_t *r = (mgreg_t*)regs;
827 gpointer arg = (gpointer)(gssize)r [MONO_ARCH_VTABLE_REG];
828 guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
829 gboolean mrgctx = MONO_RGCTX_SLOT_IS_MRGCTX (slot);
834 mono_counters_register ("RGCTX unmanaged lookups", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_lookups);
841 return mono_method_fill_runtime_generic_context (arg, index);
843 return mono_class_fill_runtime_generic_context (arg, index);
845 g_assert_not_reached ();
850 mono_monitor_enter_trampoline (mgreg_t *regs, guint8 *code, MonoObject *obj, guint8 *tramp)
852 mono_monitor_enter (obj);
856 mono_monitor_exit_trampoline (mgreg_t *regs, guint8 *code, MonoObject *obj, guint8 *tramp)
858 mono_monitor_exit (obj);
861 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
864 * mono_delegate_trampoline:
866 * This trampoline handles calls made to Delegate:Invoke ().
867 * This is called once the first time a delegate is invoked, so it must be fast.
870 mono_delegate_trampoline (mgreg_t *regs, guint8 *code, gpointer *tramp_data, guint8* tramp)
872 MonoDomain *domain = mono_domain_get ();
873 MonoDelegate *delegate;
876 MonoMethod *method = NULL;
877 gboolean multicast, callvirt = FALSE;
878 gboolean need_rgctx_tramp = FALSE;
879 gboolean enable_caching = TRUE;
880 MonoMethod *invoke = tramp_data [0];
881 guint8 *impl_this = tramp_data [1];
882 guint8 *impl_nothis = tramp_data [2];
884 MonoMethodSignature *sig;
888 /* Obtain the delegate object according to the calling convention */
889 delegate = mono_arch_get_this_arg_from_call (regs, code);
891 if (delegate->method) {
892 method = delegate->method;
895 * delegate->method_ptr == NULL means the delegate was initialized by
896 * mini_delegate_ctor, while != NULL means it is initialized by
897 * mono_delegate_ctor_with_method (). In both cases, we need to add wrappers
898 * (ctor_with_method () does this, but it doesn't store the wrapper back into
901 if (delegate->target && delegate->target->vtable->klass == mono_defaults.transparent_proxy_class) {
903 if (((MonoTransparentProxy *)delegate->target)->remote_class->proxy_class != mono_defaults.com_object_class &&
904 !((MonoTransparentProxy *)delegate->target)->remote_class->proxy_class->is_com_object)
906 method = mono_marshal_get_remoting_invoke (method);
909 mono_error_init (&err);
910 sig = mono_method_signature_checked (method, &err);
912 mono_error_raise_exception (&err);
914 if (sig->hasthis && method->klass->valuetype)
915 method = mono_marshal_get_unbox_wrapper (method);
918 ji = mono_jit_info_table_find (domain, mono_get_addr_from_ftnptr (delegate->method_ptr));
924 mono_error_init (&err);
925 sig = mono_method_signature_checked (method, &err);
927 mono_error_raise_exception (&err);
929 callvirt = !delegate->target && sig->hasthis;
930 if (delegate->target &&
931 method->flags & METHOD_ATTRIBUTE_VIRTUAL &&
932 method->flags & METHOD_ATTRIBUTE_ABSTRACT &&
933 method->klass->flags & TYPE_ATTRIBUTE_ABSTRACT) {
934 method = mono_object_get_virtual_method (delegate->target, method);
935 enable_caching = FALSE;
939 if (method && method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
940 method = mono_marshal_get_synchronized_wrapper (method);
942 if (method && mono_method_needs_static_rgctx_invoke (method, FALSE))
943 need_rgctx_tramp = TRUE;
946 * If the called address is a trampoline, replace it with the compiled method so
947 * further calls don't have to go through the trampoline.
949 if (method && !callvirt) {
950 /* Avoid the overhead of looking up an already compiled method if possible */
951 if (enable_caching && delegate->method_code && *delegate->method_code) {
952 delegate->method_ptr = *delegate->method_code;
954 delegate->method_ptr = mono_compile_method (method);
955 if (need_rgctx_tramp)
956 delegate->method_ptr = mono_create_static_rgctx_trampoline (method, delegate->method_ptr);
957 if (enable_caching && delegate->method_code)
958 *delegate->method_code = delegate->method_ptr;
959 mono_debugger_trampoline_compiled (NULL, method, delegate->method_ptr);
962 if (need_rgctx_tramp)
963 delegate->method_ptr = mono_create_static_rgctx_trampoline (method, delegate->method_ptr);
966 multicast = ((MonoMulticastDelegate*)delegate)->prev != NULL;
967 if (!multicast && !callvirt) {
968 if (method && (method->flags & METHOD_ATTRIBUTE_STATIC) && mono_method_signature (method)->param_count == mono_method_signature (invoke)->param_count + 1)
969 /* Closed static delegate */
972 code = delegate->target ? impl_this : impl_nothis;
975 delegate->invoke_impl = mono_get_addr_from_ftnptr (code);
980 /* The general, unoptimized case */
981 m = mono_marshal_get_delegate_invoke (invoke, delegate);
982 code = mono_compile_method (m);
983 delegate->invoke_impl = mono_get_addr_from_ftnptr (code);
984 mono_debugger_trampoline_compiled (NULL, m, delegate->invoke_impl);
991 #ifdef MONO_ARCH_HAVE_HANDLER_BLOCK_GUARD
993 mono_handler_block_guard_trampoline (mgreg_t *regs, guint8 *code, gpointer *tramp_data, guint8* tramp)
997 MonoJitTlsData *jit_tls = mono_native_tls_get_value (mono_jit_tls_id);
998 gpointer resume_ip = jit_tls->handler_block_return_address;
1000 memcpy (&ctx, &jit_tls->handler_block_context, sizeof (MonoContext));
1001 MONO_CONTEXT_SET_IP (&ctx, jit_tls->handler_block_return_address);
1003 jit_tls->handler_block_return_address = NULL;
1004 jit_tls->handler_block = NULL;
1006 if (!resume_ip) /*this should not happen, but we should avoid crashing */
1007 exc = mono_get_exception_execution_engine ("Invalid internal state, resuming abort after handler block but no resume ip found");
1009 exc = mono_thread_resume_interruption ();
1012 static void (*restore_context) (MonoContext *);
1014 if (!restore_context)
1015 restore_context = mono_get_restore_context ();
1017 mono_handle_exception (&ctx, exc);
1018 restore_context (&ctx);
1025 mono_create_handler_block_trampoline (void)
1027 static gpointer code;
1029 if (mono_aot_only) {
1034 mono_trampolines_lock ();
1037 code = mono_arch_create_handler_block_trampoline ();
1039 mono_trampolines_unlock ();
1046 * mono_get_trampoline_func:
1048 * Return the C function which needs to be called by the generic trampoline of type
1052 mono_get_trampoline_func (MonoTrampolineType tramp_type)
1054 switch (tramp_type) {
1055 case MONO_TRAMPOLINE_JIT:
1056 case MONO_TRAMPOLINE_JUMP:
1057 return mono_magic_trampoline;
1058 case MONO_TRAMPOLINE_CLASS_INIT:
1059 return mono_class_init_trampoline;
1060 case MONO_TRAMPOLINE_GENERIC_CLASS_INIT:
1061 return mono_generic_class_init_trampoline;
1062 case MONO_TRAMPOLINE_RGCTX_LAZY_FETCH:
1063 return mono_rgctx_lazy_fetch_trampoline;
1064 #ifdef MONO_ARCH_AOT_SUPPORTED
1065 case MONO_TRAMPOLINE_AOT:
1066 return mono_aot_trampoline;
1067 case MONO_TRAMPOLINE_AOT_PLT:
1068 return mono_aot_plt_trampoline;
1070 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
1071 case MONO_TRAMPOLINE_DELEGATE:
1072 return mono_delegate_trampoline;
1074 case MONO_TRAMPOLINE_RESTORE_STACK_PROT:
1075 return mono_altstack_restore_prot;
1076 case MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING:
1077 return mono_generic_virtual_remoting_trampoline;
1078 case MONO_TRAMPOLINE_MONITOR_ENTER:
1079 return mono_monitor_enter_trampoline;
1080 case MONO_TRAMPOLINE_MONITOR_EXIT:
1081 return mono_monitor_exit_trampoline;
1082 case MONO_TRAMPOLINE_VCALL:
1083 return mono_vcall_trampoline;
1084 #ifdef MONO_ARCH_HAVE_HANDLER_BLOCK_GUARD
1085 case MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD:
1086 return mono_handler_block_guard_trampoline;
1089 g_assert_not_reached ();
1095 create_trampoline_code (MonoTrampolineType tramp_type)
1097 MonoTrampInfo *info;
1100 code = mono_arch_create_generic_trampoline (tramp_type, &info, FALSE);
1102 mono_save_trampoline_xdebug_info (info);
1103 if (mono_jit_map_is_enabled ())
1104 mono_emit_jit_tramp (info->code, info->code_size, info->name);
1105 mono_tramp_info_free (info);
1112 mono_trampolines_init (void)
1114 InitializeCriticalSection (&trampolines_mutex);
1119 mono_trampoline_code [MONO_TRAMPOLINE_JIT] = create_trampoline_code (MONO_TRAMPOLINE_JIT);
1120 mono_trampoline_code [MONO_TRAMPOLINE_JUMP] = create_trampoline_code (MONO_TRAMPOLINE_JUMP);
1121 mono_trampoline_code [MONO_TRAMPOLINE_CLASS_INIT] = create_trampoline_code (MONO_TRAMPOLINE_CLASS_INIT);
1122 mono_trampoline_code [MONO_TRAMPOLINE_GENERIC_CLASS_INIT] = create_trampoline_code (MONO_TRAMPOLINE_GENERIC_CLASS_INIT);
1123 mono_trampoline_code [MONO_TRAMPOLINE_RGCTX_LAZY_FETCH] = create_trampoline_code (MONO_TRAMPOLINE_RGCTX_LAZY_FETCH);
1124 #ifdef MONO_ARCH_AOT_SUPPORTED
1125 mono_trampoline_code [MONO_TRAMPOLINE_AOT] = create_trampoline_code (MONO_TRAMPOLINE_AOT);
1126 mono_trampoline_code [MONO_TRAMPOLINE_AOT_PLT] = create_trampoline_code (MONO_TRAMPOLINE_AOT_PLT);
1128 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
1129 mono_trampoline_code [MONO_TRAMPOLINE_DELEGATE] = create_trampoline_code (MONO_TRAMPOLINE_DELEGATE);
1131 mono_trampoline_code [MONO_TRAMPOLINE_RESTORE_STACK_PROT] = create_trampoline_code (MONO_TRAMPOLINE_RESTORE_STACK_PROT);
1132 mono_trampoline_code [MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING] = create_trampoline_code (MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING);
1133 mono_trampoline_code [MONO_TRAMPOLINE_MONITOR_ENTER] = create_trampoline_code (MONO_TRAMPOLINE_MONITOR_ENTER);
1134 mono_trampoline_code [MONO_TRAMPOLINE_MONITOR_EXIT] = create_trampoline_code (MONO_TRAMPOLINE_MONITOR_EXIT);
1135 mono_trampoline_code [MONO_TRAMPOLINE_VCALL] = create_trampoline_code (MONO_TRAMPOLINE_VCALL);
1136 #ifdef MONO_ARCH_HAVE_HANDLER_BLOCK_GUARD
1137 mono_trampoline_code [MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD] = create_trampoline_code (MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD);
1138 mono_create_handler_block_trampoline ();
1141 mono_counters_register ("Calls to trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &trampoline_calls);
1142 mono_counters_register ("JIT trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &jit_trampolines);
1143 mono_counters_register ("Unbox trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &unbox_trampolines);
1144 mono_counters_register ("Static rgctx trampolines", MONO_COUNTER_JIT | MONO_COUNTER_INT, &static_rgctx_trampolines);
1148 mono_trampolines_cleanup (void)
1150 if (class_init_hash_addr)
1151 g_hash_table_destroy (class_init_hash_addr);
1152 if (rgctx_lazy_fetch_trampoline_hash)
1153 g_hash_table_destroy (rgctx_lazy_fetch_trampoline_hash);
1154 if (rgctx_lazy_fetch_trampoline_hash_addr)
1155 g_hash_table_destroy (rgctx_lazy_fetch_trampoline_hash_addr);
1157 DeleteCriticalSection (&trampolines_mutex);
1161 mono_get_trampoline_code (MonoTrampolineType tramp_type)
1163 g_assert (mono_trampoline_code [tramp_type]);
1165 return mono_trampoline_code [tramp_type];
1169 mono_create_specific_trampoline (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
1172 return mono_aot_create_specific_trampoline (mono_defaults.corlib, arg1, tramp_type, domain, code_len);
1174 return mono_arch_create_specific_trampoline (arg1, tramp_type, domain, code_len);
1178 mono_create_class_init_trampoline (MonoVTable *vtable)
1181 MonoDomain *domain = vtable->domain;
1183 g_assert (!vtable->klass->generic_container);
1185 /* previously created trampoline code */
1186 mono_domain_lock (domain);
1188 g_hash_table_lookup (domain_jit_info (domain)->class_init_trampoline_hash,
1190 mono_domain_unlock (domain);
1194 code = mono_create_specific_trampoline (vtable, MONO_TRAMPOLINE_CLASS_INIT, domain, NULL);
1196 ptr = mono_create_ftnptr (domain, code);
1198 /* store trampoline address */
1199 mono_domain_lock (domain);
1200 g_hash_table_insert (domain_jit_info (domain)->class_init_trampoline_hash,
1202 mono_domain_unlock (domain);
1204 mono_trampolines_lock ();
1205 if (!class_init_hash_addr)
1206 class_init_hash_addr = g_hash_table_new (NULL, NULL);
1207 g_hash_table_insert (class_init_hash_addr, ptr, vtable);
1208 mono_trampolines_unlock ();
1214 mono_create_generic_class_init_trampoline (void)
1216 #ifdef MONO_ARCH_VTABLE_REG
1217 static gpointer code;
1218 MonoTrampInfo *info;
1220 mono_trampolines_lock ();
1224 /* get_named_code () might return an ftnptr, but our caller expects a direct pointer */
1225 code = mono_get_addr_from_ftnptr (mono_aot_get_trampoline ("generic_class_init_trampoline"));
1227 code = mono_arch_create_generic_class_init_trampoline (&info, FALSE);
1230 mono_save_trampoline_xdebug_info (info);
1231 if (mono_jit_map_is_enabled ())
1232 mono_emit_jit_tramp (info->code, info->code_size, info->name);
1233 mono_tramp_info_free (info);
1238 mono_trampolines_unlock ();
1242 g_assert_not_reached ();
1247 mono_create_jump_trampoline (MonoDomain *domain, MonoMethod *method, gboolean add_sync_wrapper)
1251 guint32 code_size = 0;
1253 code = mono_jit_find_compiled_method_with_jit_info (domain, method, &ji);
1255 * We cannot recover the correct type of a shared generic
1256 * method from its native code address, so we use the
1257 * trampoline instead.
1259 if (code && !ji->has_generic_jit_info)
1262 mono_domain_lock (domain);
1263 code = g_hash_table_lookup (domain_jit_info (domain)->jump_trampoline_hash, method);
1264 mono_domain_unlock (domain);
1268 code = mono_create_specific_trampoline (method, MONO_TRAMPOLINE_JUMP, mono_domain_get (), &code_size);
1269 g_assert (code_size);
1271 ji = mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
1272 ji->code_start = code;
1273 ji->code_size = code_size;
1274 ji->method = method;
1277 * mono_delegate_ctor needs to find the method metadata from the
1278 * trampoline address, so we save it here.
1281 mono_jit_info_table_add (domain, ji);
1283 mono_domain_lock (domain);
1284 g_hash_table_insert (domain_jit_info (domain)->jump_trampoline_hash, method, ji->code_start);
1285 mono_domain_unlock (domain);
1287 return ji->code_start;
1291 mono_create_jit_trampoline_in_domain (MonoDomain *domain, MonoMethod *method)
1295 if (mono_aot_only) {
1296 /* Avoid creating trampolines if possible */
1297 gpointer code = mono_jit_find_compiled_method (domain, method);
1303 mono_domain_lock (domain);
1304 tramp = g_hash_table_lookup (domain_jit_info (domain)->jit_trampoline_hash, method);
1305 mono_domain_unlock (domain);
1309 tramp = mono_create_specific_trampoline (method, MONO_TRAMPOLINE_JIT, domain, NULL);
1311 mono_domain_lock (domain);
1312 g_hash_table_insert (domain_jit_info (domain)->jit_trampoline_hash, method, tramp);
1313 mono_domain_unlock (domain);
1321 mono_create_jit_trampoline (MonoMethod *method)
1323 return mono_create_jit_trampoline_in_domain (mono_domain_get (), method);
1327 mono_create_jit_trampoline_from_token (MonoImage *image, guint32 token)
1331 MonoDomain *domain = mono_domain_get ();
1332 guint8 *buf, *start;
1334 buf = start = mono_domain_alloc0 (domain, 2 * sizeof (gpointer));
1336 *(gpointer*)(gpointer)buf = image;
1337 buf += sizeof (gpointer);
1338 *(guint32*)(gpointer)buf = token;
1340 tramp = mono_create_specific_trampoline (start, MONO_TRAMPOLINE_AOT, domain, NULL);
1348 mono_create_delegate_trampoline (MonoClass *klass)
1350 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
1351 MonoDomain *domain = mono_domain_get ();
1353 guint32 code_size = 0;
1354 gpointer *tramp_data;
1357 mono_domain_lock (domain);
1358 ptr = g_hash_table_lookup (domain_jit_info (domain)->delegate_trampoline_hash, klass);
1359 mono_domain_unlock (domain);
1363 // Precompute the delegate invoke impl and pass it to the delegate trampoline
1364 invoke = mono_get_delegate_invoke (klass);
1367 tramp_data = mono_domain_alloc (domain, sizeof (gpointer) * 3);
1368 tramp_data [0] = invoke;
1369 tramp_data [1] = mono_arch_get_delegate_invoke_impl (mono_method_signature (invoke), TRUE);
1370 tramp_data [2] = mono_arch_get_delegate_invoke_impl (mono_method_signature (invoke), FALSE);
1372 ptr = mono_create_specific_trampoline (tramp_data, MONO_TRAMPOLINE_DELEGATE, mono_domain_get (), &code_size);
1373 g_assert (code_size);
1375 /* store trampoline address */
1376 mono_domain_lock (domain);
1377 g_hash_table_insert (domain_jit_info (domain)->delegate_trampoline_hash,
1379 mono_domain_unlock (domain);
1388 mono_create_rgctx_lazy_fetch_trampoline (guint32 offset)
1390 static gboolean inited = FALSE;
1391 static int num_trampolines = 0;
1392 MonoTrampInfo *info;
1394 gpointer tramp, ptr;
1397 return mono_aot_get_lazy_fetch_trampoline (offset);
1399 mono_trampolines_lock ();
1400 if (rgctx_lazy_fetch_trampoline_hash)
1401 tramp = g_hash_table_lookup (rgctx_lazy_fetch_trampoline_hash, GUINT_TO_POINTER (offset));
1404 mono_trampolines_unlock ();
1408 tramp = mono_arch_create_rgctx_lazy_fetch_trampoline (offset, &info, FALSE);
1410 mono_save_trampoline_xdebug_info (info);
1411 if (mono_jit_map_is_enabled ())
1412 mono_emit_jit_tramp (info->code, info->code_size, info->name);
1413 mono_tramp_info_free (info);
1415 ptr = mono_create_ftnptr (mono_get_root_domain (), tramp);
1417 mono_trampolines_lock ();
1418 if (!rgctx_lazy_fetch_trampoline_hash) {
1419 rgctx_lazy_fetch_trampoline_hash = g_hash_table_new (NULL, NULL);
1420 rgctx_lazy_fetch_trampoline_hash_addr = g_hash_table_new (NULL, NULL);
1422 g_hash_table_insert (rgctx_lazy_fetch_trampoline_hash, GUINT_TO_POINTER (offset), ptr);
1423 g_assert (offset != -1);
1424 g_hash_table_insert (rgctx_lazy_fetch_trampoline_hash_addr, ptr, GUINT_TO_POINTER (offset + 1));
1425 mono_trampolines_unlock ();
1428 mono_counters_register ("RGCTX num lazy fetch trampolines",
1429 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_trampolines);
1438 mono_create_monitor_enter_trampoline (void)
1440 static gpointer code;
1442 if (mono_aot_only) {
1444 code = mono_aot_get_trampoline ("monitor_enter_trampoline");
1448 #ifdef MONO_ARCH_MONITOR_OBJECT_REG
1449 mono_trampolines_lock ();
1452 MonoTrampInfo *info;
1454 code = mono_arch_create_monitor_enter_trampoline (&info, FALSE);
1456 mono_save_trampoline_xdebug_info (info);
1457 if (mono_jit_map_is_enabled ())
1458 mono_emit_jit_tramp (info->code, info->code_size, info->name);
1459 mono_tramp_info_free (info);
1463 mono_trampolines_unlock ();
1466 g_assert_not_reached ();
1473 mono_create_monitor_exit_trampoline (void)
1475 static gpointer code;
1477 if (mono_aot_only) {
1479 code = mono_aot_get_trampoline ("monitor_exit_trampoline");
1483 #ifdef MONO_ARCH_MONITOR_OBJECT_REG
1484 mono_trampolines_lock ();
1487 MonoTrampInfo *info;
1489 code = mono_arch_create_monitor_exit_trampoline (&info, FALSE);
1491 mono_save_trampoline_xdebug_info (info);
1492 if (mono_jit_map_is_enabled ())
1493 mono_emit_jit_tramp (info->code, info->code_size, info->name);
1494 mono_tramp_info_free (info);
1498 mono_trampolines_unlock ();
1501 g_assert_not_reached ();
1506 #ifdef MONO_ARCH_LLVM_SUPPORTED
1508 * mono_create_llvm_imt_trampoline:
1510 * LLVM compiled code can't pass in the IMT argument, so we use this trampoline, which
1511 * sets the IMT argument, then branches to the contents of the vtable slot given by
1512 * vt_offset in the vtable which is obtained from the argument list.
1515 mono_create_llvm_imt_trampoline (MonoDomain *domain, MonoMethod *m, int vt_offset)
1517 #ifdef MONO_ARCH_HAVE_LLVM_IMT_TRAMPOLINE
1518 return mono_arch_get_llvm_imt_trampoline (domain, m, vt_offset);
1520 g_assert_not_reached ();
1527 mono_find_class_init_trampoline_by_addr (gconstpointer addr)
1531 mono_trampolines_lock ();
1532 if (class_init_hash_addr)
1533 res = g_hash_table_lookup (class_init_hash_addr, addr);
1536 mono_trampolines_unlock ();
1541 mono_find_rgctx_lazy_fetch_trampoline_by_addr (gconstpointer addr)
1545 mono_trampolines_lock ();
1546 if (rgctx_lazy_fetch_trampoline_hash_addr) {
1547 /* We store the real offset + 1 so we can detect when the lookup fails */
1548 offset = GPOINTER_TO_INT (g_hash_table_lookup (rgctx_lazy_fetch_trampoline_hash_addr, addr));
1556 mono_trampolines_unlock ();
1560 static const char*tramp_names [MONO_TRAMPOLINE_NUM] = {
1564 "generic_class_init",
1569 "restore_stack_prot",
1570 "generic_virtual_remoting",
1574 #ifdef MONO_ARCH_HAVE_HANDLER_BLOCK_GUARD
1575 "handler_block_guard"
1580 * mono_get_generic_trampoline_name:
1582 * Returns a pointer to malloc-ed memory.
1585 mono_get_generic_trampoline_name (MonoTrampolineType tramp_type)
1587 return g_strdup_printf ("generic_trampoline_%s", tramp_names [tramp_type]);
1591 * mono_get_rgctx_fetch_trampoline_name:
1593 * Returns a pointer to malloc-ed memory.
1596 mono_get_rgctx_fetch_trampoline_name (int slot)
1601 mrgctx = MONO_RGCTX_SLOT_IS_MRGCTX (slot);
1602 index = MONO_RGCTX_SLOT_INDEX (slot);
1604 return g_strdup_printf ("rgctx_fetch_trampoline_%s_%d", mrgctx ? "mrgctx" : "rgctx", index);