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This commit is contained in:
Zack Buhman 2025-01-21 21:43:54 -06:00
parent 8f49f69e7e
commit 5b11745867
3 changed files with 28 additions and 70 deletions
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52
c/class_resolver.c
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@ -453,8 +453,7 @@ static struct Code_attribute * resolve_code_attribute(struct class_entry * class
return attribute->code; return attribute->code;
} }
static void resolve_method_entry(int native_hash_table_length, static void resolve_method_entry(struct vm * vm,
struct hash_table_entry * native_hash_table,
struct class_entry * class_entry, struct class_entry * class_entry,
struct constant * method_name_constant, struct constant * method_name_constant,
struct constant * method_descriptor_constant, struct constant * method_descriptor_constant,
@ -485,8 +484,8 @@ static void resolve_method_entry(int native_hash_table_length,
struct constant * method_descriptor_constant = &class_file->constant_pool[method_info->descriptor_index - 1]; struct constant * method_descriptor_constant = &class_file->constant_pool[method_info->descriptor_index - 1];
assert(method_descriptor_constant->tag == CONSTANT_Utf8); assert(method_descriptor_constant->tag == CONSTANT_Utf8);
method_entry->native_func = native_method_lookup(native_hash_table_length, method_entry->native_func = native_method_lookup(vm->native_hash_table.length,
native_hash_table, vm->native_hash_table.entry,
class_name_constant, class_name_constant,
method_name_constant, method_name_constant,
method_descriptor_constant); method_descriptor_constant);
@ -500,10 +499,7 @@ static void resolve_method_entry(int native_hash_table_length,
debugc('\n'); debugc('\n');
} }
static void resolve_method_entry_from_superclasses(int class_hash_table_length, static void resolve_method_entry_from_superclasses(struct vm * vm,
struct hash_table_entry * class_hash_table,
int native_hash_table_length,
struct hash_table_entry * native_hash_table,
struct class_entry * class_entry, struct class_entry * class_entry,
struct constant * method_name_constant, struct constant * method_name_constant,
struct constant * method_descriptor_constant, struct constant * method_descriptor_constant,
@ -514,8 +510,7 @@ static void resolve_method_entry_from_superclasses(int class_hash_table_length,
method_entry->method_info = nullptr; method_entry->method_info = nullptr;
while (true) { while (true) {
resolve_method_entry(native_hash_table_length, resolve_method_entry(vm,
native_hash_table,
class_entry, class_entry,
method_name_constant, method_name_constant,
method_descriptor_constant, method_descriptor_constant,
@ -532,22 +527,20 @@ static void resolve_method_entry_from_superclasses(int class_hash_table_length,
assert(class_name_constant->tag == CONSTANT_Utf8); assert(class_name_constant->tag == CONSTANT_Utf8);
// lookup the method from the superclass // lookup the method from the superclass
class_entry = class_resolver_lookup_class_from_class_index(class_hash_table_length, class_entry = class_resolver_lookup_class_from_class_index(vm->class_hash_table.length,
class_hash_table, vm->class_hash_table.entry,
class_entry, class_entry,
class_entry->class_file->super_class); class_entry->class_file->super_class);
assert(class_entry != nullptr); assert(class_entry != nullptr);
} }
} }
struct method_entry class_resolver_lookup_method_from_objectref_class(int class_hash_table_length, struct method_entry class_resolver_lookup_method_from_objectref_class(struct vm * vm,
struct hash_table_entry * class_hash_table,
int native_hash_table_length,
struct hash_table_entry * native_hash_table,
int32_t methodref_index, int32_t methodref_index,
struct class_entry * objectref_class_entry, struct class_entry * objectref_class_entry)
struct class_entry * origin_class_entry)
{ {
struct class_entry * origin_class_entry = vm->current_frame->class_entry;
struct constant * methodref_constant = &origin_class_entry->class_file->constant_pool[methodref_index - 1]; struct constant * methodref_constant = &origin_class_entry->class_file->constant_pool[methodref_index - 1];
assert(methodref_constant->tag == CONSTANT_InterfaceMethodref || methodref_constant->tag == CONSTANT_Methodref); assert(methodref_constant->tag == CONSTANT_InterfaceMethodref || methodref_constant->tag == CONSTANT_Methodref);
struct constant * nameandtype_constant = &origin_class_entry->class_file->constant_pool[methodref_constant->methodref.name_and_type_index - 1]; struct constant * nameandtype_constant = &origin_class_entry->class_file->constant_pool[methodref_constant->methodref.name_and_type_index - 1];
@ -561,10 +554,7 @@ struct method_entry class_resolver_lookup_method_from_objectref_class(int class_
struct method_entry method_entry; struct method_entry method_entry;
resolve_method_entry_from_superclasses(class_hash_table_length, resolve_method_entry_from_superclasses(vm,
class_hash_table,
native_hash_table_length,
native_hash_table,
class_entry, class_entry,
method_name_constant, method_name_constant,
method_descriptor_constant, method_descriptor_constant,
@ -573,13 +563,10 @@ struct method_entry class_resolver_lookup_method_from_objectref_class(int class_
return method_entry; return method_entry;
} }
struct method_entry * class_resolver_lookup_method_from_origin_class(int class_hash_table_length, struct method_entry * class_resolver_lookup_method_from_origin_class(struct vm * vm,
struct hash_table_entry * class_hash_table, int32_t methodref_index)
int native_hash_table_length,
struct hash_table_entry * native_hash_table,
int32_t methodref_index,
struct class_entry * origin_class_entry)
{ {
struct class_entry * origin_class_entry = vm->current_frame->class_entry;
if (origin_class_entry->attribute_entry[methodref_index - 1].method_entry != nullptr) { if (origin_class_entry->attribute_entry[methodref_index - 1].method_entry != nullptr) {
debugf("class_resolver_lookup_method_from_origin_class %d: [cached]\n", methodref_index); debugf("class_resolver_lookup_method_from_origin_class %d: [cached]\n", methodref_index);
return origin_class_entry->attribute_entry[methodref_index - 1].method_entry; return origin_class_entry->attribute_entry[methodref_index - 1].method_entry;
@ -594,17 +581,14 @@ struct method_entry * class_resolver_lookup_method_from_origin_class(int class_h
struct constant * method_descriptor_constant = &origin_class_entry->class_file->constant_pool[nameandtype_constant->nameandtype.descriptor_index - 1]; struct constant * method_descriptor_constant = &origin_class_entry->class_file->constant_pool[nameandtype_constant->nameandtype.descriptor_index - 1];
assert(method_descriptor_constant->tag == CONSTANT_Utf8); assert(method_descriptor_constant->tag == CONSTANT_Utf8);
struct class_entry * class_entry = class_resolver_lookup_class_from_class_index(class_hash_table_length, struct class_entry * class_entry = class_resolver_lookup_class_from_class_index(vm->class_hash_table.length,
class_hash_table, vm->class_hash_table.entry,
origin_class_entry, origin_class_entry,
methodref_constant->methodref.class_index); methodref_constant->methodref.class_index);
struct method_entry * method_entry = malloc_class_arena((sizeof (struct method_entry))); struct method_entry * method_entry = malloc_class_arena((sizeof (struct method_entry)));
resolve_method_entry_from_superclasses(class_hash_table_length, resolve_method_entry_from_superclasses(vm,
class_hash_table,
native_hash_table_length,
native_hash_table,
class_entry, class_entry,
method_name_constant, method_name_constant,
method_descriptor_constant, method_descriptor_constant,

16
c/class_resolver.h
View File

@ -19,19 +19,11 @@ struct class_entry * class_resolver_lookup_class_from_class_index(int class_hash
struct class_entry * class_entry, struct class_entry * class_entry,
int32_t class_index); int32_t class_index);
struct method_entry class_resolver_lookup_method_from_objectref_class(int class_hash_table_length, struct method_entry class_resolver_lookup_method_from_objectref_class(struct vm * vm,
struct hash_table_entry * class_hash_table,
int native_hash_table_length,
struct hash_table_entry * native_hash_table,
int32_t methodref_index, int32_t methodref_index,
struct class_entry * objectref_class_entry, struct class_entry * objectref_class_entry);
struct class_entry * origin_class_entry); struct method_entry * class_resolver_lookup_method_from_origin_class(struct vm * vm,
struct method_entry * class_resolver_lookup_method_from_origin_class(int class_hash_table_length, int32_t methodref_index);
struct hash_table_entry * class_hash_table,
int native_hash_table_length,
struct hash_table_entry * native_hash_table,
int32_t methodref_index,
struct class_entry * origin_class_entry);
struct method_entry class_resolver_lookup_method_from_method_name_method_descriptor(struct class_entry * class_entry, struct method_entry class_resolver_lookup_method_from_method_name_method_descriptor(struct class_entry * class_entry,
const uint8_t * method_name, const uint8_t * method_name,

30
c/execute.c
View File

@ -1210,13 +1210,9 @@ void op_invokeinterface(struct vm * vm, uint32_t index, uint32_t count)
return vm_exception(vm, vm_instance_create(vm, "java/lang/NullPointerException")); return vm_exception(vm, vm_instance_create(vm, "java/lang/NullPointerException"));
struct method_entry method_entry = struct method_entry method_entry =
class_resolver_lookup_method_from_objectref_class(vm->class_hash_table.length, class_resolver_lookup_method_from_objectref_class(vm,
vm->class_hash_table.entry,
vm->native_hash_table.length,
vm->native_hash_table.entry,
index, index,
objectref->class_entry, objectref->class_entry);
vm->current_frame->class_entry);
vm_special_method_call(vm, method_entry.class_entry, &method_entry); vm_special_method_call(vm, method_entry.class_entry, &method_entry);
} }
@ -1241,12 +1237,7 @@ void op_invokespecial(struct vm * vm, uint32_t index)
return vm_exception(vm, vm_instance_create(vm, "java/lang/NullPointerException")); return vm_exception(vm, vm_instance_create(vm, "java/lang/NullPointerException"));
struct method_entry * method_entry = struct method_entry * method_entry =
class_resolver_lookup_method_from_origin_class(vm->class_hash_table.length, class_resolver_lookup_method_from_origin_class(vm, index);
vm->class_hash_table.entry,
vm->native_hash_table.length,
vm->native_hash_table.entry,
index,
vm->current_frame->class_entry);
vm_special_method_call(vm, method_entry->class_entry, method_entry); vm_special_method_call(vm, method_entry->class_entry, method_entry);
} }
@ -1254,12 +1245,7 @@ void op_invokespecial(struct vm * vm, uint32_t index)
void op_invokestatic(struct vm * vm, uint32_t index) void op_invokestatic(struct vm * vm, uint32_t index)
{ {
struct method_entry * method_entry = struct method_entry * method_entry =
class_resolver_lookup_method_from_origin_class(vm->class_hash_table.length, class_resolver_lookup_method_from_origin_class(vm, index);
vm->class_hash_table.entry,
vm->native_hash_table.length,
vm->native_hash_table.entry,
index,
vm->current_frame->class_entry);
/* On successful resolution of the method, the class or interface that /* On successful resolution of the method, the class or interface that
declared the resolved method is initialized if that class or interface has declared the resolved method is initialized if that class or interface has
@ -1288,13 +1274,9 @@ void op_invokevirtual(struct vm * vm, uint32_t index)
return vm_exception(vm, vm_instance_create(vm, "java/lang/NullPointerException")); return vm_exception(vm, vm_instance_create(vm, "java/lang/NullPointerException"));
struct method_entry method_entry = struct method_entry method_entry =
class_resolver_lookup_method_from_objectref_class(vm->class_hash_table.length, class_resolver_lookup_method_from_objectref_class(vm,
vm->class_hash_table.entry,
vm->native_hash_table.length,
vm->native_hash_table.entry,
index, index,
objectref->class_entry, objectref->class_entry);
vm->current_frame->class_entry);
vm_special_method_call(vm, method_entry.class_entry, &method_entry); vm_special_method_call(vm, method_entry.class_entry, &method_entry);
} }