/*
- * aot.c: mono Ahead of Time compiler
+ * aot-runtime.c: mono Ahead of Time compiler
*
* Author:
* Dietmar Maurer (dietmar@ximian.com)
#endif
#include <fcntl.h>
#include <string.h>
-#ifndef PLATFORM_WIN32
+#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
-#else
+#endif
+
+#if PLATFORM_WIN32
#include <winsock2.h>
#include <windows.h>
#endif
#include <mono/metadata/marshal.h>
#include <mono/metadata/gc-internal.h>
#include <mono/metadata/monitor.h>
+#include <mono/metadata/threads-types.h>
#include <mono/utils/mono-logger.h>
#include "mono/utils/mono-compiler.h"
GHashTable *extra_methods;
/* Maps methods to their code */
GHashTable *method_to_code;
+ /* Maps pointers into the method info to the methods themselves */
+ GHashTable *method_ref_to_method;
MonoAssemblyName *image_names;
char **image_guids;
MonoAssembly *assembly;
guint8 *extra_method_info;
guint8 *trampolines;
guint32 num_trampolines, trampoline_got_offset_base, trampoline_index;
+ guint32 specific_trampoline_size;
gpointer *globals;
MonoDl *sofile;
} MonoAotModule;
guint32 num_trampolines;
guint32 got_size;
guint32 plt_size;
+ guint32 specific_trampoline_size;
gpointer *got;
} MonoAotFileInfo;
mono_metadata_free_type (type);
} else if ((type == MONO_TYPE_VAR) || (type == MONO_TYPE_MVAR)) {
MonoType *t;
- gboolean is_method;
MonoGenericContainer *container;
- // FIXME: Maybe use types directly to avoid
- // the overhead of creating MonoClass-es
+ int num = decode_value (p, &p);
+ gboolean is_method = decode_value (p, &p);
- // FIXME: Memory management
- t = g_new0 (MonoType, 1);
- t->type = type;
- t->data.generic_param = g_new0 (MonoGenericParam, 1);
- t->data.generic_param->num = decode_value (p, &p);
- t->data.generic_param->name = "T";
-
- is_method = decode_value (p, &p);
if (is_method) {
- MonoMethod *method_def = decode_method_ref_2 (module, p, &p);
-
- if (!method_def) {
- g_free (t->data.generic_param);
- g_free (t);
+ MonoMethod *method_def;
+ g_assert (type == MONO_TYPE_MVAR);
+ method_def = decode_method_ref_2 (module, p, &p);
+ if (!method_def)
return NULL;
- }
container = mono_method_get_generic_container (method_def);
} else {
- MonoClass *class_def = decode_klass_ref (module, p, &p);
-
- if (!class_def) {
- g_free (t->data.generic_param);
- g_free (t);
+ MonoClass *class_def;
+ g_assert (type == MONO_TYPE_VAR);
+ class_def = decode_klass_ref (module, p, &p);
+ if (!class_def)
return NULL;
- }
container = class_def->generic_container;
}
g_assert (container);
- t->data.generic_param->owner = container;
+ // FIXME: Memory management
+ t = g_new0 (MonoType, 1);
+ t->type = type;
+ t->data.generic_param = mono_generic_container_get_param (container, num);
+
+ // FIXME: Maybe use types directly to avoid
+ // the overhead of creating MonoClass-es
klass = mono_class_from_mono_type (t);
+
+ g_free (t);
} else {
g_assert_not_reached ();
}
return mono_class_get_field (klass, token);
}
+/*
+ * can_method_ref_match_method:
+ *
+ * Determine if calling decode_method_ref_2 on P could return the same method as
+ * METHOD. This is an optimization to avoid calling decode_method_ref_2 () which
+ * would create MonoMethods which are not needed etc.
+ */
+static gboolean
+can_method_ref_match_method (MonoAotModule *module, guint8 *buf, MonoMethod *method)
+{
+ guint8 *p = buf;
+ guint32 image_index, value;
+
+ /* Keep this in sync with decode_method_ref () */
+ value = decode_value (p, &p);
+ image_index = value >> 24;
+
+ if (image_index == MONO_AOT_METHODREF_WRAPPER) {
+ guint32 wrapper_type;
+
+ if (!method->wrapper_type)
+ return FALSE;
+
+ wrapper_type = decode_value (p, &p);
+
+ if (method->wrapper_type != wrapper_type)
+ return FALSE;
+ } else if (image_index < MONO_AOT_METHODREF_MIN || image_index == MONO_AOT_METHODREF_METHODSPEC || image_index == MONO_AOT_METHODREF_GINST) {
+ if (method->wrapper_type)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
/*
* decode_method_ref:
*
decode_method_ref (MonoAotModule *module, guint32 *token, MonoMethod **method, gboolean *no_aot_trampoline, guint8 *buf, guint8 **endbuf)
{
guint32 image_index, value;
- MonoImage *image;
+ MonoImage *image = NULL;
guint8 *p = buf;
if (method)
value = decode_value (p, &p);
image_index = value >> 24;
- if (image_index == 252) {
+ if (image_index == MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE) {
if (no_aot_trampoline)
*no_aot_trampoline = TRUE;
value = decode_value (p, &p);
image_index = value >> 24;
}
- if (image_index == 253) {
- /* Wrapper */
+ if (image_index == MONO_AOT_METHODREF_WRAPPER) {
guint32 wrapper_type;
wrapper_type = decode_value (p, &p);
default:
g_assert_not_reached ();
}
- } else if (image_index == 255) {
- /* Methodspec */
+ } else if (image_index == MONO_AOT_METHODREF_WRAPPER_NAME) {
+ /* Can't decode these */
+ g_assert_not_reached ();
+ } else if (image_index == MONO_AOT_METHODREF_METHODSPEC) {
image_index = decode_value (p, &p);
*token = decode_value (p, &p);
image = load_image (module, image_index);
if (!image)
return NULL;
- } else if (image_index == 254) {
- /* Method on generic instance */
+ } else if (image_index == MONO_AOT_METHODREF_GINST) {
MonoClass *klass;
MonoGenericContext ctx;
return NULL;
*method = mono_class_inflate_generic_method_full (*method, klass, &ctx);
+ } else if (image_index == MONO_AOT_METHODREF_ARRAY) {
+ MonoClass *klass;
+ int method_type;
+
+ klass = decode_klass_ref (module, p, &p);
+ if (!klass)
+ return NULL;
+ method_type = decode_value (p, &p);
+ *token = 0;
+ switch (method_type) {
+ case 0:
+ *method = mono_class_get_method_from_name (klass, ".ctor", klass->rank);
+ break;
+ case 1:
+ *method = mono_class_get_method_from_name (klass, ".ctor", klass->rank * 2);
+ break;
+ case 2:
+ *method = mono_class_get_method_from_name (klass, "Get", -1);
+ break;
+ case 3:
+ *method = mono_class_get_method_from_name (klass, "Address", -1);
+ break;
+ case 4:
+ *method = mono_class_get_method_from_name (klass, "Set", -1);
+ break;
+ default:
+ g_assert_not_reached ();
+ }
} else {
+ g_assert (image_index < MONO_AOT_METHODREF_MIN);
*token = MONO_TOKEN_METHOD_DEF | (value & 0xffffff);
image = load_image (module, image_index);
amodule->trampoline_got_offset_base = file_info->trampoline_got_offset_base;
amodule->got_size = file_info->got_size;
amodule->plt_size = file_info->plt_size;
+ amodule->specific_trampoline_size = file_info->specific_trampoline_size;
amodule->got = file_info->got;
amodule->got [0] = assembly->image;
amodule->globals = globals;
/* Exception table */
if (header && header->num_clauses) {
- mono_domain_lock (domain);
jinfo =
mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + (sizeof (MonoJitExceptionInfo) * header->num_clauses) + generic_info_size);
jinfo->num_clauses = header->num_clauses;
- mono_domain_unlock (domain);
for (i = 0; i < header->num_clauses; ++i) {
MonoExceptionClause *ec = &header->clauses [i];
}
}
else {
- mono_domain_lock (domain);
jinfo = mono_domain_alloc0 (domain, sizeof (MonoJitInfo) + generic_info_size);
- mono_domain_unlock (domain);
}
jinfo->code_size = code_len;
case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
case MONO_PATCH_INFO_RVA:
case MONO_PATCH_INFO_METHODCONST:
+ case MONO_PATCH_INFO_IMAGE:
return TRUE;
default:
return FALSE;
return FALSE;
}
+/*
+ * decode_got_entry:
+ *
+ * Decode a reference to a GOT entry. GOT_OFFSET is set to the index of the got
+ * entry. If that got entry is not already filled out, then JI is filled out with
+ * the information required to resolve the value of the GOT entry.
+ * FIXME: Clean up this confusing API.
+ */
static gboolean
decode_got_entry (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guint8 *buf, guint8 **endbuf, guint32 *got_offset)
{
jinfo = decode_exception_debug_info (aot_module, domain, method, ex_info, code);
}
- mono_domain_lock (domain);
- code2 = mono_code_manager_reserve (domain->code_mp, jinfo->code_size);
- mono_domain_unlock (domain);
+ code2 = mono_domain_code_reserve (domain, jinfo->code_size);
memcpy (code2, code, jinfo->code_size);
mono_arch_flush_icache (code2, jinfo->code_size);
code = code2;
guint32 table_size, entry_size, hash;
guint32 *table, *entry;
char *full_name = NULL;
+ int num_checks = 0;
if (!amodule)
return 0xffffff;
char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
full_name = g_strdup_printf ("(wrapper delegate-invoke):%s (%s)", method->name, tmpsig);
g_free (tmpsig);
+ } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_BEGIN_INVOKE) {
+ char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
+ full_name = g_strdup_printf ("(wrapper delegate-begin-invoke):%s (%s)", method->name, tmpsig);
+ g_free (tmpsig);
+ } else if (method->wrapper_type == MONO_WRAPPER_DELEGATE_END_INVOKE) {
+ char *tmpsig = mono_signature_get_desc (mono_method_signature (method), TRUE);
+ full_name = g_strdup_printf ("(wrapper delegate-end-invoke):%s (%s)", method->name, tmpsig);
+ g_free (tmpsig);
} else {
full_name = mono_method_full_name (method, TRUE);
}
}
- if (method->wrapper_type)
- hash = g_str_hash (method->name) % table_size;
- else
- hash = 0 % table_size;
+ hash = mono_aot_method_hash (method) % table_size;
entry = &table [hash * entry_size];
- if (entry [0] != 0) {
- while (TRUE) {
- guint32 key = entry [0];
- guint32 value = entry [1];
- guint32 next = entry [entry_size - 1];
- MonoMethod *m;
- guint8 *p;
- int is_wrapper;
-
- // FIXME: Avoid fully decoding the method ref
- p = amodule->extra_method_info + key;
- is_wrapper = decode_value (p, &p);
- if (method->wrapper_type && is_wrapper) {
- if (!strcmp (full_name, (char*)p))
- return value;
- } else {
- m = decode_method_ref_2 (amodule, p, &p);
- if (m == method)
- return value;
- }
+ if (entry [0] == 0)
+ return 0xffffff;
- if (next != 0) {
- entry = &table [next * entry_size];
- } else {
- break;
+ while (TRUE) {
+ guint32 key = entry [0];
+ guint32 value = entry [1];
+ guint32 next = entry [entry_size - 1];
+ MonoMethod *m;
+ guint8 *p;
+ int is_wrapper;
+
+ p = amodule->extra_method_info + key;
+ is_wrapper = decode_value (p, &p);
+ if (is_wrapper) {
+ if (full_name && !strcmp (full_name, (char*)p))
+ return value;
+ } else if (can_method_ref_match_method (amodule, p, method)) {
+ num_checks ++;
+ mono_aot_lock ();
+ if (!amodule->method_ref_to_method)
+ amodule->method_ref_to_method = g_hash_table_new (NULL, NULL);
+ m = g_hash_table_lookup (amodule->method_ref_to_method, p);
+ mono_aot_unlock ();
+ if (!m) {
+ guint8 *orig_p = p;
+ m = decode_method_ref_2 (amodule, p, &p);
+ if (m) {
+ mono_aot_lock ();
+ g_hash_table_insert (amodule->method_ref_to_method, orig_p, m);
+ mono_aot_unlock ();
+ }
}
+ /*
+ if (m)
+ printf ("%d %s %s\n", num_checks, mono_method_full_name (method, TRUE), mono_method_full_name (m, TRUE));
+ */
+ if (m == method)
+ return value;
}
+
+ if (next != 0)
+ entry = &table [next * entry_size];
+ else
+ break;
}
return 0xffffff;
MonoJumpInfo *ji = &patches [pindex];
gpointer target;
+ if (amodule->got [got_slots [pindex]])
+ continue;
+
/*
* When this code is executed, the runtime may not yet initalized, so
* resolve the patch info by hand.
} else if (!strcmp (ji->data.name, "mono_amd64_throw_exception")) {
target = mono_amd64_throw_exception;
#endif
+#ifdef __x86_64__
+ } else if (!strcmp (ji->data.name, "mono_amd64_get_original_ip")) {
+ target = mono_amd64_get_original_ip;
+#endif
#ifdef __arm__
} else if (!strcmp (ji->data.name, "mono_arm_throw_exception")) {
target = mono_arm_throw_exception;
+ } else if (!strcmp (ji->data.name, "mono_arm_throw_exception_by_token")) {
+ target = mono_arm_throw_exception_by_token;
#endif
} else if (strstr (ji->data.name, "trampoline_func_") == ji->data.name) {
int tramp_type2 = atoi (ji->data.name + strlen ("trampoline_func_"));
target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_ENTER, mono_get_root_domain (), NULL);
} else if (!strcmp (ji->data.name, "specific_trampoline_monitor_exit")) {
target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_EXIT, mono_get_root_domain (), NULL);
+ } else if (!strcmp (ji->data.name, "specific_trampoline_generic_class_init")) {
+ target = mono_create_specific_trampoline (NULL, MONO_TRAMPOLINE_GENERIC_CLASS_INIT, mono_get_root_domain (), NULL);
+ } else if (!strcmp (ji->data.name, "mono_thread_get_and_clear_pending_exception")) {
+ target = mono_thread_get_and_clear_pending_exception;
} else {
fprintf (stderr, "Unknown relocation '%s'\n", ji->data.name);
g_assert_not_reached ();
* domain to be set.
*/
target = mono_resolve_patch_target (NULL, NULL, code, ji, FALSE);
+ g_assert (target);
}
amodule->got [got_slots [pindex]] = target;
amodule->got [amodule->trampoline_got_offset_base + (index *2)] = tramp;
amodule->got [amodule->trampoline_got_offset_base + (index *2) + 1] = arg1;
-#ifdef __x86_64__
- tramp_size = 16;
-#elif defined(__arm__)
- tramp_size = 28;
-#else
- tramp_size = -1;
- g_assert_not_reached ();
-#endif
+ tramp_size = amodule->specific_trampoline_size;
code = amodule->trampolines + (index * tramp_size);
if (code_len)
char *symbol;
gpointer code;
- amodule = method->klass->image->aot_module;
- g_assert (amodule);
+ if (method->is_inflated) {
+ guint32 index = find_extra_method (method, &amodule);
+
+ g_assert (index != 0xffffff);
+
+ symbol = g_strdup_printf ("ut_e_%d", index);
+ } else {
+ amodule = method->klass->image->aot_module;
+ g_assert (amodule);
- symbol = g_strdup_printf ("unbox_trampoline_%d", method_index);
+ symbol = g_strdup_printf ("ut_%d", method_index);
+ }
code = load_named_code (amodule, symbol);
g_free (symbol);
return code;
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