#include <mono/metadata/metadata-internals.h>
#include <mono/metadata/marshal.h>
#include <mono/metadata/tabledefs.h>
+#include <mono/utils/mono-counters.h>
#ifdef HAVE_VALGRIND_MEMCHECK_H
#include <valgrind/memcheck.h>
#endif
#include "mini.h"
+#include "debug-mini.h"
+
+/*
+ * Address of the trampoline code. This is used by the debugger to check
+ * whether a method is a trampoline.
+ */
+guint8* mono_trampoline_code [MONO_TRAMPOLINE_NUM];
+
+static GHashTable *class_init_hash_addr = NULL;
+static GHashTable *delegate_trampoline_hash_addr = NULL;
+static GHashTable *rgctx_lazy_fetch_trampoline_hash = NULL;
+static GHashTable *rgctx_lazy_fetch_trampoline_hash_addr = NULL;
+
+#define mono_trampolines_lock() EnterCriticalSection (&trampolines_mutex)
+#define mono_trampolines_unlock() LeaveCriticalSection (&trampolines_mutex)
+static CRITICAL_SECTION trampolines_mutex;
+
+static gpointer
+get_unbox_trampoline (MonoGenericSharingContext *gsctx, MonoMethod *m, gpointer addr)
+{
+ if (mono_aot_only)
+ return mono_aot_get_unbox_trampoline (m);
+ else
+ return mono_arch_get_unbox_trampoline (gsctx, m, addr);
+}
+
+#ifdef MONO_ARCH_HAVE_IMT
+
+static gpointer*
+mono_convert_imt_slot_to_vtable_slot (gpointer* slot, gpointer *regs, guint8 *code, MonoMethod *method, MonoMethod **impl_method)
+{
+ MonoGenericSharingContext *gsctx = mono_get_generic_context_from_code (code);
+ MonoObject *this_argument = mono_arch_find_this_argument (regs, method, gsctx);
+ MonoVTable *vt = this_argument->vtable;
+ int displacement = slot - ((gpointer*)vt);
+
+ if (displacement > 0) {
+ /* slot is in the vtable, not in the IMT */
+#if DEBUG_IMT
+ printf ("mono_convert_imt_slot_to_vtable_slot: slot %p is in the vtable, not in the IMT\n", slot);
+#endif
+ return slot;
+ } else {
+ MonoMethod *imt_method = mono_arch_find_imt_method (regs, code);
+ int interface_offset;
+ int imt_slot = MONO_IMT_SIZE + displacement;
+
+ mono_class_setup_vtable (vt->klass);
+ interface_offset = mono_class_interface_offset (vt->klass, imt_method->klass);
+
+ if (interface_offset < 0) {
+ g_print ("%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));
+ g_assert_not_reached ();
+ }
+ mono_vtable_build_imt_slot (vt, mono_method_get_imt_slot (imt_method));
+
+ if (impl_method)
+ *impl_method = vt->klass->vtable [interface_offset + imt_method->slot];
+#if DEBUG_IMT
+ printf ("mono_convert_imt_slot_to_vtable_slot: method = %s.%s.%s, imt_method = %s.%s.%s\n",
+ method->klass->name_space, method->klass->name, method->name,
+ imt_method->klass->name_space, imt_method->klass->name, imt_method->name);
+#endif
+ g_assert (imt_slot < MONO_IMT_SIZE);
+ if (vt->imt_collisions_bitmap & (1 << imt_slot)) {
+ int vtable_offset = interface_offset + imt_method->slot;
+ gpointer *vtable_slot = & (vt->vtable [vtable_offset]);
+#if DEBUG_IMT
+ 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);
+#endif
+ return vtable_slot;
+ } else {
+#if DEBUG_IMT
+ printf ("mono_convert_imt_slot_to_vtable_slot: slot %p[%d] is in the IMT, but not colliding\n", slot, imt_slot);
+#endif
+ return slot;
+ }
+ }
+}
+#endif
/**
* mono_magic_trampoline:
{
gpointer addr;
gpointer *vtable_slot;
+ gboolean generic_shared = FALSE;
+ MonoMethod *declaring = NULL;
+ int context_used;
+
+#if MONO_ARCH_COMMON_VTABLE_TRAMPOLINE
+ if (m == MONO_FAKE_VTABLE_METHOD) {
+ int displacement;
+ MonoVTable *vt = mono_arch_get_vcall_slot (code, (gpointer*)regs, &displacement);
+ g_assert (vt);
+ if (displacement > 0) {
+ displacement -= G_STRUCT_OFFSET (MonoVTable, vtable);
+ g_assert (displacement >= 0);
+ displacement /= sizeof (gpointer);
+
+ /* Avoid loading metadata or creating a generic vtable if possible */
+ addr = mono_aot_get_method_from_vt_slot (mono_domain_get (), vt, displacement);
+ if (addr && !vt->klass->valuetype) {
+ vtable_slot = mono_arch_get_vcall_slot_addr (code, (gpointer*)regs);
+ if (mono_aot_is_got_entry (code, (guint8*)vtable_slot) || mono_domain_owns_vtable_slot (mono_domain_get (), vtable_slot)) {
+ *vtable_slot = mono_get_addr_from_ftnptr (addr);
+ }
+
+ return addr;
+ }
+
+ mono_class_setup_vtable (vt->klass);
+ m = vt->klass->vtable [displacement];
+ /*g_print ("%s with disp %d: %s at %p\n", vt->klass->name, displacement, m->name, code);*/
+ } else {
+ /* We got here from an interface method: redirect to IMT handling */
+ m = MONO_FAKE_IMT_METHOD;
+ /*g_print ("vtable with disp %d at %p\n", displacement, code);*/
+ }
+ }
+#endif
+ /* this is the IMT trampoline */
+#ifdef MONO_ARCH_HAVE_IMT
+ if (m == MONO_FAKE_IMT_METHOD) {
+ MonoMethod *impl_method;
+ /* we get the interface method because mono_convert_imt_slot_to_vtable_slot ()
+ * needs the signature to be able to find the this argument
+ */
+ m = mono_arch_find_imt_method ((gpointer*)regs, code);
+ vtable_slot = mono_arch_get_vcall_slot_addr (code, (gpointer*)regs);
+ g_assert (vtable_slot);
+ vtable_slot = mono_convert_imt_slot_to_vtable_slot (vtable_slot, (gpointer*)regs, code, m, &impl_method);
+ /* mono_convert_imt_slot_to_vtable_slot () also gives us the method that is supposed
+ * to be called, so we compile it and go ahead as usual.
+ */
+ /*g_print ("imt found method %p (%s) at %p\n", impl_method, impl_method->name, code);*/
+ m = impl_method;
+ }
+#endif
+
+ if ((context_used = mono_method_check_context_used (m))) {
+ MonoClass *klass = NULL;
+ MonoMethod *actual_method = NULL;
+ MonoVTable *vt = NULL;
+ MonoGenericInst *method_inst = NULL;
+
+ vtable_slot = NULL;
+ generic_shared = TRUE;
+
+ g_assert (code);
+
+ if (m->is_inflated && mono_method_get_context (m)->method_inst) {
+#ifdef MONO_ARCH_RGCTX_REG
+ MonoMethodRuntimeGenericContext *mrgctx = (MonoMethodRuntimeGenericContext*)mono_arch_find_static_call_vtable ((gpointer*)regs, code);
+
+ klass = mrgctx->class_vtable->klass;
+ method_inst = mrgctx->method_inst;
+#else
+ g_assert_not_reached ();
+#endif
+ } else if (m->flags & METHOD_ATTRIBUTE_STATIC) {
+#ifdef MONO_ARCH_RGCTX_REG
+ MonoVTable *vtable = mono_arch_find_static_call_vtable ((gpointer*)regs, code);
+
+ klass = vtable->klass;
+#else
+ g_assert_not_reached ();
+#endif
+ } else {
+#ifdef MONO_ARCH_HAVE_IMT
+ MonoObject *this_argument = mono_arch_find_this_argument ((gpointer*)regs, m,
+ mono_get_generic_context_from_code (code));
+
+ vt = this_argument->vtable;
+ vtable_slot = mono_arch_get_vcall_slot_addr (code, (gpointer*)regs);
+
+ g_assert (this_argument->vtable->klass->inited);
+ //mono_class_init (this_argument->vtable->klass);
+
+ if (!vtable_slot)
+ klass = this_argument->vtable->klass->supertypes [m->klass->idepth - 1];
+#else
+ NOT_IMPLEMENTED;
+#endif
+ }
+
+ g_assert (vtable_slot || klass);
+
+ if (vtable_slot) {
+ int displacement = vtable_slot - ((gpointer*)vt);
+
+ g_assert_not_reached ();
+
+ g_assert (displacement > 0);
+
+ actual_method = vt->klass->vtable [displacement];
+ }
+
+ if (method_inst) {
+ MonoGenericContext context = { NULL, NULL };
+
+ if (m->is_inflated)
+ declaring = mono_method_get_declaring_generic_method (m);
+ else
+ declaring = m;
+
+ if (klass->generic_class)
+ context.class_inst = klass->generic_class->context.class_inst;
+ else if (klass->generic_container)
+ context.class_inst = klass->generic_container->context.class_inst;
+ context.method_inst = method_inst;
+
+ actual_method = mono_class_inflate_generic_method (declaring, &context);
+ } else {
+ actual_method = mono_class_get_method_generic (klass, m);
+ }
+
+ g_assert (klass);
+ g_assert (actual_method->klass == klass);
+
+ if (actual_method->is_inflated)
+ declaring = mono_method_get_declaring_generic_method (actual_method);
+ else
+ declaring = NULL;
+
+ m = actual_method;
+ }
+
+ if (m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) {
+ MonoJitInfo *ji;
+
+ if (code)
+ ji = mono_jit_info_table_find (mono_domain_get (), (char*)code);
+ else
+ ji = NULL;
+
+ /* Avoid recursion */
+ if (!(ji && ji->method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED))
+ m = mono_marshal_get_synchronized_wrapper (m);
+ }
addr = mono_compile_method (m);
g_assert (addr);
+ mono_debugger_trampoline_compiled (m, addr);
+
/* the method was jumped to */
- if (!code)
+ if (!code) {
+ MonoDomain *domain = mono_domain_get ();
+
+ /* Patch the got entries pointing to this method */
+ /*
+ * We do this here instead of in mono_codegen () to cover the case when m
+ * was loaded from an aot image.
+ */
+ if (jit_domain_info (domain)->jump_target_got_slot_hash) {
+ GSList *list, *tmp;
+
+ mono_domain_lock (domain);
+ list = g_hash_table_lookup (jit_domain_info (domain)->jump_target_got_slot_hash, m);
+ if (list) {
+ for (tmp = list; tmp; tmp = tmp->next) {
+ gpointer *got_slot = tmp->data;
+ *got_slot = addr;
+ }
+ g_hash_table_remove (jit_domain_info (domain)->jump_target_got_slot_hash, m);
+ g_slist_free (list);
+ }
+ mono_domain_unlock (domain);
+ }
+
return addr;
+ }
vtable_slot = mono_arch_get_vcall_slot_addr (code, (gpointer*)regs);
if (vtable_slot) {
if (m->klass->valuetype)
- addr = mono_arch_get_unbox_trampoline (m, addr);
+ addr = get_unbox_trampoline (mono_get_generic_context_from_code (code), m, addr);
g_assert (*vtable_slot);
- if (mono_aot_is_got_entry (code, (guint8*)vtable_slot) || mono_domain_owns_vtable_slot (mono_domain_get (), vtable_slot))
+ if (mono_aot_is_got_entry (code, (guint8*)vtable_slot) || mono_domain_owns_vtable_slot (mono_domain_get (), vtable_slot)) {
+#ifdef MONO_ARCH_HAVE_IMT
+ vtable_slot = mono_convert_imt_slot_to_vtable_slot (vtable_slot, (gpointer*)regs, code, m, NULL);
+#endif
*vtable_slot = mono_get_addr_from_ftnptr (addr);
+ }
}
- else {
+ else if (!generic_shared || (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
+ mono_domain_lookup_shared_generic (mono_domain_get (), declaring)) {
guint8 *plt_entry = mono_aot_get_plt_entry (code);
+ if (generic_shared)
+ g_assert (mono_method_is_generic_sharable_impl (m, FALSE));
+
/* Patch calling code */
if (plt_entry) {
mono_arch_patch_plt_entry (plt_entry, addr);
} else {
MonoJitInfo *ji =
- mono_jit_info_table_find (mono_domain_get (), code);
+ mono_jit_info_table_find (mono_domain_get (), (char*)code);
MonoJitInfo *target_ji =
mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (addr));
if (mono_method_same_domain (ji, target_ji))
- mono_arch_patch_callsite (code, addr);
+ mono_arch_patch_callsite (ji->code_start, code, addr);
}
}
if (!method)
method = mono_get_method (image, token, NULL);
if (method->klass->valuetype)
- addr = mono_arch_get_unbox_trampoline (method, addr);
+ addr = get_unbox_trampoline (mono_get_generic_context_from_code (code), method, addr);
}
} else {
/* This is a normal call through a PLT entry */
* is AppDomain:InvokeInDomain, so this is the same check as in
* mono_method_same_domain () but without loading the metadata for the method.
*/
- if ((is_got_entry && (mono_domain_get () == mono_get_root_domain ())) || mono_domain_owns_vtable_slot (mono_domain_get (), vtable_slot))
+ if ((is_got_entry && (mono_domain_get () == mono_get_root_domain ())) || mono_domain_owns_vtable_slot (mono_domain_get (), vtable_slot)) {
+#ifdef MONO_ARCH_HAVE_IMT
+ if (!method)
+ method = mono_get_method (image, token, NULL);
+ vtable_slot = mono_convert_imt_slot_to_vtable_slot (vtable_slot, (gpointer*)regs, code, method, NULL);
+#endif
*vtable_slot = addr;
+ }
return addr;
}
mono_aot_plt_trampoline (gssize *regs, guint8 *code, guint8 *aot_module,
guint8* tramp)
{
-#ifdef MONO_ARCH_AOT_PLT_OFFSET_REG
- guint32 plt_info_offset = regs [MONO_ARCH_AOT_PLT_OFFSET_REG];
-#else
- guint32 plt_info_offset = -1;
-#endif
+ guint32 plt_info_offset = mono_aot_get_plt_info_offset (regs, code);
return mono_aot_plt_resolve (aot_module, plt_info_offset, code);
}
}
}
+/**
+ * mono_generic_class_init_trampoline:
+ *
+ * This method calls mono_runtime_class_init () to run the static constructor
+ * for the type.
+ */
+void
+mono_generic_class_init_trampoline (gssize *regs, guint8 *code, MonoVTable *vtable, guint8 *tramp)
+{
+ g_assert (!vtable->initialized);
+
+ mono_runtime_class_init (vtable);
+}
+
+static gpointer
+mono_rgctx_lazy_fetch_trampoline (gssize *regs, guint8 *code, gpointer data, guint8 *tramp)
+{
+#ifdef MONO_ARCH_VTABLE_REG
+ static gboolean inited = FALSE;
+ static int num_lookups = 0;
+ guint32 slot = GPOINTER_TO_UINT (data);
+ gpointer arg = (gpointer)(gssize)regs [MONO_ARCH_VTABLE_REG];
+ guint32 index = MONO_RGCTX_SLOT_INDEX (slot);
+ gboolean mrgctx = MONO_RGCTX_SLOT_IS_MRGCTX (slot);
+
+ if (!inited) {
+ mono_counters_register ("RGCTX unmanaged lookups", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_lookups);
+ inited = TRUE;
+ }
+
+ num_lookups++;
+
+ if (mrgctx)
+ return mono_method_fill_runtime_generic_context (arg, index);
+ else
+ return mono_class_fill_runtime_generic_context (arg, index);
+#else
+ g_assert_not_reached ();
+#endif
+}
+
#ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
/**
* mono_delegate_trampoline:
*
- * This trampoline handles calls made from the delegate invoke wrapper. It patches
- * the function address inside the delegate.
+ * This trampoline handles calls made to Delegate:Invoke ().
+ * This is called once the first time a delegate is invoked, so it must be fast.
*/
gpointer
-mono_delegate_trampoline (gssize *regs, guint8 *code, MonoMethod *m, guint8* tramp)
+mono_delegate_trampoline (gssize *regs, guint8 *code, gpointer *tramp_data, guint8* tramp)
{
- gpointer addr;
+ MonoDomain *domain = mono_domain_get ();
+ MonoDelegate *delegate;
+ MonoJitInfo *ji;
+ MonoMethod *m;
+ MonoMethod *method = NULL;
+ gboolean multicast, callvirt;
+ MonoMethod *invoke = tramp_data [0];
+ guint8 *impl_this = tramp_data [1];
+ guint8 *impl_nothis = tramp_data [2];
- addr = mono_compile_method (m);
- g_assert (addr);
+ /* Obtain the delegate object according to the calling convention */
- mono_arch_patch_delegate_trampoline (code, tramp, regs, addr);
+ /*
+ * Avoid calling mono_get_generic_context_from_code () now since it is expensive,
+ * get_this_arg_from_call will call it if needed.
+ */
+ delegate = mono_arch_get_this_arg_from_call (NULL, mono_method_signature (invoke), regs, code);
+
+ if (!delegate->method_ptr && delegate->method) {
+ /* The delegate was initialized by mini_delegate_ctor */
+ method = delegate->method;
+
+ if (delegate->target && delegate->target->vtable->klass == mono_defaults.transparent_proxy_class)
+ method = mono_marshal_get_remoting_invoke (method);
+ else if (mono_method_signature (method)->hasthis && method->klass->valuetype)
+ method = mono_marshal_get_unbox_wrapper (method);
+ } else if (delegate->method) {
+ method = delegate->method;
+ } else {
+ ji = mono_jit_info_table_find (domain, mono_get_addr_from_ftnptr (delegate->method_ptr));
+ if (ji)
+ method = ji->method;
+ }
+ callvirt = !delegate->target && method && mono_method_signature (method)->hasthis;
- return addr;
+ if (method && method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
+ method = mono_marshal_get_synchronized_wrapper (method);
+
+ /*
+ * If the called address is a trampoline, replace it with the compiled method so
+ * further calls don't have to go through the trampoline.
+ */
+ if (method && !callvirt) {
+ /* Avoid the overhead of looking up an already compiled method if possible */
+ if (delegate->method_code && *delegate->method_code) {
+ delegate->method_ptr = *delegate->method_code;
+ } else {
+ delegate->method_ptr = mono_compile_method (method);
+ if (delegate->method_code)
+ *delegate->method_code = delegate->method_ptr;
+ mono_debugger_trampoline_compiled (method, delegate->method_ptr);
+ }
+ }
+
+ multicast = ((MonoMulticastDelegate*)delegate)->prev != NULL;
+ if (!multicast && !callvirt) {
+ code = delegate->target ? impl_this : impl_nothis;
+
+ if (code) {
+ delegate->invoke_impl = code;
+ return code;
+ }
+ }
+
+ /* The general, unoptimized case */
+ m = mono_marshal_get_delegate_invoke (invoke, delegate);
+ code = mono_compile_method (m);
+ delegate->invoke_impl = mono_get_addr_from_ftnptr (code);
+ mono_debugger_trampoline_compiled (m, delegate->invoke_impl);
+
+ return code;
}
#endif
+
+/*
+ * mono_get_trampoline_func:
+ *
+ * Return the C function which needs to be called by the generic trampoline of type
+ * TRAMP_TYPE.
+ */
+gconstpointer
+mono_get_trampoline_func (MonoTrampolineType tramp_type)
+{
+ switch (tramp_type) {
+ case MONO_TRAMPOLINE_JIT:
+ case MONO_TRAMPOLINE_JUMP:
+ return mono_magic_trampoline;
+ case MONO_TRAMPOLINE_CLASS_INIT:
+ return mono_class_init_trampoline;
+ case MONO_TRAMPOLINE_GENERIC_CLASS_INIT:
+ return mono_generic_class_init_trampoline;
+ case MONO_TRAMPOLINE_RGCTX_LAZY_FETCH:
+ return mono_rgctx_lazy_fetch_trampoline;
+#ifdef MONO_ARCH_AOT_SUPPORTED
+ case MONO_TRAMPOLINE_AOT:
+ return mono_aot_trampoline;
+ case MONO_TRAMPOLINE_AOT_PLT:
+ return mono_aot_plt_trampoline;
+#endif
+#ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
+ case MONO_TRAMPOLINE_DELEGATE:
+ return mono_delegate_trampoline;
+#endif
+ default:
+ g_assert_not_reached ();
+ return NULL;
+ }
+}
+
+void
+mono_trampolines_init (void)
+{
+ InitializeCriticalSection (&trampolines_mutex);
+
+ if (mono_aot_only)
+ return;
+
+ mono_trampoline_code [MONO_TRAMPOLINE_JIT] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_JIT);
+ mono_trampoline_code [MONO_TRAMPOLINE_JUMP] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_JUMP);
+ mono_trampoline_code [MONO_TRAMPOLINE_CLASS_INIT] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_CLASS_INIT);
+ mono_trampoline_code [MONO_TRAMPOLINE_GENERIC_CLASS_INIT] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_GENERIC_CLASS_INIT);
+ mono_trampoline_code [MONO_TRAMPOLINE_RGCTX_LAZY_FETCH] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_RGCTX_LAZY_FETCH);
+#ifdef MONO_ARCH_AOT_SUPPORTED
+ mono_trampoline_code [MONO_TRAMPOLINE_AOT] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_AOT);
+ mono_trampoline_code [MONO_TRAMPOLINE_AOT_PLT] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_AOT_PLT);
+#endif
+#ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
+ mono_trampoline_code [MONO_TRAMPOLINE_DELEGATE] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_DELEGATE);
+#endif
+}
+
+void
+mono_trampolines_cleanup (void)
+{
+ if (class_init_hash_addr)
+ g_hash_table_destroy (class_init_hash_addr);
+ if (delegate_trampoline_hash_addr)
+ g_hash_table_destroy (delegate_trampoline_hash_addr);
+
+ DeleteCriticalSection (&trampolines_mutex);
+}
+
+guint8 *
+mono_get_trampoline_code (MonoTrampolineType tramp_type)
+{
+ g_assert (mono_trampoline_code [tramp_type]);
+
+ return mono_trampoline_code [tramp_type];
+}
+
+gpointer
+mono_create_specific_trampoline (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len)
+{
+ if (mono_aot_only)
+ return mono_aot_create_specific_trampoline (mono_defaults.corlib, arg1, tramp_type, domain, code_len);
+ else
+ return mono_arch_create_specific_trampoline (arg1, tramp_type, domain, code_len);
+}
+
+gpointer
+mono_create_class_init_trampoline (MonoVTable *vtable)
+{
+ gpointer code, ptr;
+
+ g_assert (!vtable->klass->generic_container);
+
+ /* previously created trampoline code */
+ mono_domain_lock (vtable->domain);
+ ptr =
+ g_hash_table_lookup (vtable->domain->class_init_trampoline_hash,
+ vtable);
+ mono_domain_unlock (vtable->domain);
+ if (ptr)
+ return ptr;
+
+ code = mono_create_specific_trampoline (vtable, MONO_TRAMPOLINE_CLASS_INIT, vtable->domain, NULL);
+
+ ptr = mono_create_ftnptr (vtable->domain, code);
+
+ /* store trampoline address */
+ mono_domain_lock (vtable->domain);
+ g_hash_table_insert (vtable->domain->class_init_trampoline_hash,
+ vtable, ptr);
+ mono_domain_unlock (vtable->domain);
+
+ mono_trampolines_lock ();
+ if (!class_init_hash_addr)
+ class_init_hash_addr = g_hash_table_new (NULL, NULL);
+ g_hash_table_insert (class_init_hash_addr, ptr, vtable);
+ mono_trampolines_unlock ();
+
+ return ptr;
+}
+
+gpointer
+mono_create_generic_class_init_trampoline (void)
+{
+#ifdef MONO_ARCH_VTABLE_REG
+ static gpointer code;
+
+ mono_trampolines_lock ();
+
+ if (!code)
+ code = mono_arch_create_generic_class_init_trampoline ();
+
+ mono_trampolines_unlock ();
+
+ return code;
+#else
+ g_assert_not_reached ();
+#endif
+}
+
+gpointer
+mono_create_jump_trampoline (MonoDomain *domain, MonoMethod *method, gboolean add_sync_wrapper)
+{
+ MonoJitInfo *ji;
+ gpointer code;
+ guint32 code_size = 0;
+
+ code = mono_jit_find_compiled_method (domain, method);
+ if (code)
+ return code;
+
+ mono_domain_lock (domain);
+ code = g_hash_table_lookup (domain->jump_trampoline_hash, method);
+ mono_domain_unlock (domain);
+ if (code)
+ return code;
+
+ code = mono_create_specific_trampoline (method, MONO_TRAMPOLINE_JUMP, mono_domain_get (), &code_size);
+ g_assert (code_size);
+
+ mono_domain_lock (domain);
+ ji = mono_mempool_alloc0 (domain->mp, sizeof (MonoJitInfo));
+ mono_domain_unlock (domain);
+ ji->code_start = code;
+ ji->code_size = code_size;
+ ji->method = method;
+
+ /*
+ * mono_delegate_ctor needs to find the method metadata from the
+ * trampoline address, so we save it here.
+ */
+
+ mono_jit_info_table_add (domain, ji);
+
+ mono_domain_lock (domain);
+ g_hash_table_insert (domain->jump_trampoline_hash, method, ji->code_start);
+ mono_domain_unlock (domain);
+
+ return ji->code_start;
+}
+
+gpointer
+mono_create_jit_trampoline_in_domain (MonoDomain *domain, MonoMethod *method)
+{
+ gpointer tramp;
+
+ if (mono_aot_only) {
+ /* Avoid creating trampolines if possible */
+ gpointer code = mono_jit_find_compiled_method (domain, method);
+
+ if (code)
+ return code;
+ }
+
+ mono_domain_lock (domain);
+ tramp = g_hash_table_lookup (domain->jit_trampoline_hash, method);
+ mono_domain_unlock (domain);
+ if (tramp)
+ return tramp;
+
+ tramp = mono_create_specific_trampoline (method, MONO_TRAMPOLINE_JIT, domain, NULL);
+
+ mono_domain_lock (domain);
+ g_hash_table_insert (domain->jit_trampoline_hash, method, tramp);
+ mono_domain_unlock (domain);
+
+ mono_jit_stats.method_trampolines++;
+
+ return tramp;
+}
+
+gpointer
+mono_create_jit_trampoline (MonoMethod *method)
+{
+ return mono_create_jit_trampoline_in_domain (mono_domain_get (), method);
+}
+
+#ifdef MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN
+gpointer
+mono_create_jit_trampoline_from_token (MonoImage *image, guint32 token)
+{
+ gpointer tramp;
+
+ MonoDomain *domain = mono_domain_get ();
+ guint8 *buf, *start;
+
+ mono_domain_lock (domain);
+ buf = start = mono_code_manager_reserve (domain->code_mp, 2 * sizeof (gpointer));
+ mono_domain_unlock (domain);
+
+ *(gpointer*)(gpointer)buf = image;
+ buf += sizeof (gpointer);
+ *(guint32*)(gpointer)buf = token;
+
+ tramp = mono_create_specific_trampoline (start, MONO_TRAMPOLINE_AOT, domain, NULL);
+
+ mono_jit_stats.method_trampolines++;
+
+ return tramp;
+}
+#endif
+
+gpointer
+mono_create_delegate_trampoline (MonoClass *klass)
+{
+#ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
+ MonoDomain *domain = mono_domain_get ();
+ gpointer ptr;
+ guint32 code_size = 0;
+ gpointer *tramp_data;
+ MonoMethod *invoke;
+
+ mono_domain_lock (domain);
+ ptr = g_hash_table_lookup (domain->delegate_trampoline_hash, klass);
+ mono_domain_unlock (domain);
+ if (ptr)
+ return ptr;
+
+ // Precompute the delegate invoke impl and pass it to the delegate trampoline
+ invoke = mono_get_delegate_invoke (klass);
+ g_assert (invoke);
+
+ mono_domain_lock (domain );
+ tramp_data = mono_mempool_alloc (domain->mp, sizeof (gpointer) * 3);
+ mono_domain_unlock (domain);
+ tramp_data [0] = invoke;
+ if (mono_aot_only) {
+ tramp_data [1] = NULL;
+ tramp_data [2] = NULL;
+ } else {
+ tramp_data [1] = mono_arch_get_delegate_invoke_impl (mono_method_signature (invoke), TRUE);
+ tramp_data [2] = mono_arch_get_delegate_invoke_impl (mono_method_signature (invoke), FALSE);
+ }
+
+ ptr = mono_create_specific_trampoline (tramp_data, MONO_TRAMPOLINE_DELEGATE, mono_domain_get (), &code_size);
+ g_assert (code_size);
+
+ /* store trampoline address */
+ mono_domain_lock (domain);
+ g_hash_table_insert (domain->delegate_trampoline_hash,
+ klass, ptr);
+ mono_domain_unlock (domain);
+
+ mono_trampolines_lock ();
+ if (!delegate_trampoline_hash_addr)
+ delegate_trampoline_hash_addr = g_hash_table_new (NULL, NULL);
+ g_hash_table_insert (delegate_trampoline_hash_addr, ptr, klass);
+ mono_trampolines_unlock ();
+
+ return ptr;
+#else
+ return NULL;
+#endif
+}
+
+gpointer
+mono_create_rgctx_lazy_fetch_trampoline (guint32 offset)
+{
+ static gboolean inited = FALSE;
+ static int num_trampolines = 0;
+
+ gpointer tramp, ptr;
+
+ if (mono_aot_only)
+ return mono_aot_get_lazy_fetch_trampoline (offset);
+
+ mono_trampolines_lock ();
+ if (rgctx_lazy_fetch_trampoline_hash)
+ tramp = g_hash_table_lookup (rgctx_lazy_fetch_trampoline_hash, GUINT_TO_POINTER (offset));
+ else
+ tramp = NULL;
+ mono_trampolines_unlock ();
+ if (tramp)
+ return tramp;
+
+ tramp = mono_arch_create_rgctx_lazy_fetch_trampoline (offset);
+ ptr = mono_create_ftnptr (mono_get_root_domain (), tramp);
+
+ mono_trampolines_lock ();
+ if (!rgctx_lazy_fetch_trampoline_hash) {
+ rgctx_lazy_fetch_trampoline_hash = g_hash_table_new (NULL, NULL);
+ rgctx_lazy_fetch_trampoline_hash_addr = g_hash_table_new (NULL, NULL);
+ }
+ g_hash_table_insert (rgctx_lazy_fetch_trampoline_hash, GUINT_TO_POINTER (offset), ptr);
+ g_assert (offset != -1);
+ g_hash_table_insert (rgctx_lazy_fetch_trampoline_hash_addr, ptr, GUINT_TO_POINTER (offset + 1));
+ mono_trampolines_unlock ();
+
+ if (!inited) {
+ mono_counters_register ("RGCTX num lazy fetch trampolines",
+ MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_trampolines);
+ inited = TRUE;
+ }
+ num_trampolines++;
+
+ return ptr;
+}
+
+MonoVTable*
+mono_find_class_init_trampoline_by_addr (gconstpointer addr)
+{
+ MonoVTable *res;
+
+ mono_trampolines_lock ();
+ if (class_init_hash_addr)
+ res = g_hash_table_lookup (class_init_hash_addr, addr);
+ else
+ res = NULL;
+ mono_trampolines_unlock ();
+ return res;
+}
+
+MonoClass*
+mono_find_delegate_trampoline_by_addr (gconstpointer addr)
+{
+ MonoClass *res;
+
+ mono_trampolines_lock ();
+ if (delegate_trampoline_hash_addr)
+ res = g_hash_table_lookup (delegate_trampoline_hash_addr, addr);
+ else
+ res = NULL;
+ mono_trampolines_unlock ();
+ return res;
+}
+
+guint32
+mono_find_rgctx_lazy_fetch_trampoline_by_addr (gconstpointer addr)
+{
+ int offset;
+
+ mono_trampolines_lock ();
+ if (rgctx_lazy_fetch_trampoline_hash_addr) {
+ /* We store the real offset + 1 so we can detect when the lookup fails */
+ offset = GPOINTER_TO_INT (g_hash_table_lookup (rgctx_lazy_fetch_trampoline_hash_addr, addr));
+ if (offset)
+ offset -= 1;
+ else
+ offset = -1;
+ } else {
+ offset = -1;
+ }
+ mono_trampolines_unlock ();
+ return offset;
+}
projects / mono.git / blobdiff