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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
View File

@ -453,8 +453,7 @@ static struct Code_attribute * resolve_code_attribute(struct class_entry * class
return attribute->code;
}
static void resolve_method_entry(int native_hash_table_length,
struct hash_table_entry * native_hash_table,
static void resolve_method_entry(struct vm * vm,
struct class_entry * class_entry,
struct constant * method_name_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];
assert(method_descriptor_constant->tag == CONSTANT_Utf8);
method_entry->native_func = native_method_lookup(native_hash_table_length,
native_hash_table,
method_entry->native_func = native_method_lookup(vm->native_hash_table.length,
vm->native_hash_table.entry,
class_name_constant,
method_name_constant,
method_descriptor_constant);
@ -500,10 +499,7 @@ static void resolve_method_entry(int native_hash_table_length,
debugc('\n');
}
static void resolve_method_entry_from_superclasses(int class_hash_table_length,
struct hash_table_entry * class_hash_table,
int native_hash_table_length,
struct hash_table_entry * native_hash_table,
static void resolve_method_entry_from_superclasses(struct vm * vm,
struct class_entry * class_entry,
struct constant * method_name_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;
while (true) {
resolve_method_entry(native_hash_table_length,
native_hash_table,
resolve_method_entry(vm,
class_entry,
method_name_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);
// lookup the method from the superclass
class_entry = class_resolver_lookup_class_from_class_index(class_hash_table_length,
class_hash_table,
class_entry = class_resolver_lookup_class_from_class_index(vm->class_hash_table.length,
vm->class_hash_table.entry,
class_entry,
class_entry->class_file->super_class);
assert(class_entry != nullptr);
}
}
struct method_entry class_resolver_lookup_method_from_objectref_class(int class_hash_table_length,
struct hash_table_entry * class_hash_table,
int native_hash_table_length,
struct hash_table_entry * native_hash_table,
struct method_entry class_resolver_lookup_method_from_objectref_class(struct vm * vm,
int32_t methodref_index,
struct class_entry * objectref_class_entry,
struct class_entry * origin_class_entry)
struct class_entry * objectref_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];
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];
@ -561,10 +554,7 @@ struct method_entry class_resolver_lookup_method_from_objectref_class(int class_
struct method_entry method_entry;
resolve_method_entry_from_superclasses(class_hash_table_length,
class_hash_table,
native_hash_table_length,
native_hash_table,
resolve_method_entry_from_superclasses(vm,
class_entry,
method_name_constant,
method_descriptor_constant,
@ -573,13 +563,10 @@ struct method_entry class_resolver_lookup_method_from_objectref_class(int class_
return method_entry;
}
struct method_entry * class_resolver_lookup_method_from_origin_class(int class_hash_table_length,
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_origin_class(struct vm * vm,
int32_t methodref_index)
{
struct class_entry * origin_class_entry = vm->current_frame->class_entry;
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);
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];
assert(method_descriptor_constant->tag == CONSTANT_Utf8);
struct class_entry * class_entry = class_resolver_lookup_class_from_class_index(class_hash_table_length,
class_hash_table,
struct class_entry * class_entry = class_resolver_lookup_class_from_class_index(vm->class_hash_table.length,
vm->class_hash_table.entry,
origin_class_entry,
methodref_constant->methodref.class_index);
struct method_entry * method_entry = malloc_class_arena((sizeof (struct method_entry)));
resolve_method_entry_from_superclasses(class_hash_table_length,
class_hash_table,
native_hash_table_length,
native_hash_table,
resolve_method_entry_from_superclasses(vm,
class_entry,
method_name_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,
int32_t class_index);
struct method_entry class_resolver_lookup_method_from_objectref_class(int class_hash_table_length,
struct hash_table_entry * class_hash_table,
int native_hash_table_length,
struct hash_table_entry * native_hash_table,
struct method_entry class_resolver_lookup_method_from_objectref_class(struct vm * vm,
int32_t methodref_index,
struct class_entry * objectref_class_entry,
struct class_entry * origin_class_entry);
struct method_entry * class_resolver_lookup_method_from_origin_class(int class_hash_table_length,
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 class_entry * objectref_class_entry);
struct method_entry * class_resolver_lookup_method_from_origin_class(struct vm * vm,
int32_t methodref_index);
struct method_entry class_resolver_lookup_method_from_method_name_method_descriptor(struct class_entry * class_entry,
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"));
struct method_entry method_entry =
class_resolver_lookup_method_from_objectref_class(vm->class_hash_table.length,
vm->class_hash_table.entry,
vm->native_hash_table.length,
vm->native_hash_table.entry,
class_resolver_lookup_method_from_objectref_class(vm,
index,
objectref->class_entry,
vm->current_frame->class_entry);
objectref->class_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"));
struct method_entry * method_entry =
class_resolver_lookup_method_from_origin_class(vm->class_hash_table.length,
vm->class_hash_table.entry,
vm->native_hash_table.length,
vm->native_hash_table.entry,
index,
vm->current_frame->class_entry);
class_resolver_lookup_method_from_origin_class(vm, index);
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)
{
struct method_entry * method_entry =
class_resolver_lookup_method_from_origin_class(vm->class_hash_table.length,
vm->class_hash_table.entry,
vm->native_hash_table.length,
vm->native_hash_table.entry,
index,
vm->current_frame->class_entry);
class_resolver_lookup_method_from_origin_class(vm, index);
/* On successful resolution of the method, the class or interface that
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"));
struct method_entry method_entry =
class_resolver_lookup_method_from_objectref_class(vm->class_hash_table.length,
vm->class_hash_table.entry,
vm->native_hash_table.length,
vm->native_hash_table.entry,
class_resolver_lookup_method_from_objectref_class(vm,
index,
objectref->class_entry,
vm->current_frame->class_entry);
objectref->class_entry);
vm_special_method_call(vm, method_entry.class_entry, &method_entry);
}