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// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "vm/globals.h"
#if defined(TARGET_ARCH_RISCV32) || defined(TARGET_ARCH_RISCV64)
#include "vm/dart_entry.h"
#include "vm/isolate.h"
#include "vm/native_entry.h"
#include "vm/native_entry_test.h"
#include "vm/object.h"
#include "vm/runtime_entry.h"
#include "vm/stub_code.h"
#include "vm/symbols.h"
#include "vm/unit_test.h"
#define __ assembler->
namespace dart {
static Function* CreateFunction(const char* name) {
const String& class_name =
String::Handle(Symbols::New(Thread::Current(), "ownerClass"));
const Script& script = Script::Handle();
const Library& lib = Library::Handle(Library::New(class_name));
const Class& owner_class = Class::Handle(
Class::New(lib, class_name, script, TokenPosition::kNoSource));
const String& function_name =
String::ZoneHandle(Symbols::New(Thread::Current(), name));
const FunctionType& signature = FunctionType::ZoneHandle(FunctionType::New());
Function& function = Function::ZoneHandle(Function::New(
signature, function_name, UntaggedFunction::kRegularFunction, true, false,
false, false, false, owner_class, TokenPosition::kNoSource));
return &function;
}
// Test calls to stub code which calls into the runtime.
static void GenerateCallToCallRuntimeStub(compiler::Assembler* assembler,
int length) {
const int argc = 2;
const Smi& smi_length = Smi::ZoneHandle(Smi::New(length));
__ EnterDartFrame(0);
__ PushObject(Object::null_object()); // Push Null obj for return value.
__ PushObject(smi_length); // Push argument 1: length.
__ PushObject(Object::null_object()); // Push argument 2: type arguments.
ASSERT(kAllocateArrayRuntimeEntry.argument_count() == argc);
__ CallRuntime(kAllocateArrayRuntimeEntry, argc);
__ addi(SP, SP, argc * kWordSize);
__ PopRegister(A0); // Pop return value from return slot.
__ LeaveDartFrame();
__ ret();
}
ISOLATE_UNIT_TEST_CASE(CallRuntimeStubCode) {
extern const Function& RegisterFakeFunction(const char* name,
const Code& code);
const int length = 10;
const char* kName = "Test_CallRuntimeStubCode";
compiler::ObjectPoolBuilder object_pool_builder;
compiler::Assembler assembler(&object_pool_builder);
GenerateCallToCallRuntimeStub(&assembler, length);
SafepointWriteRwLocker ml(thread, thread->isolate_group()->program_lock());
const Code& code = Code::Handle(Code::FinalizeCodeAndNotify(
*CreateFunction("Test_CallRuntimeStubCode"), nullptr, &assembler,
Code::PoolAttachment::kAttachPool));
const Function& function = RegisterFakeFunction(kName, code);
Array& result = Array::Handle();
result ^= DartEntry::InvokeFunction(function, Object::empty_array());
EXPECT_EQ(length, result.Length());
}
// Test calls to stub code which calls into a leaf runtime entry.
static void GenerateCallToCallLeafRuntimeStub(compiler::Assembler* assembler,
const char* str_value,
intptr_t lhs_index_value,
intptr_t rhs_index_value,
intptr_t length_value) {
const String& str = String::ZoneHandle(String::New(str_value, Heap::kOld));
const Smi& lhs_index = Smi::ZoneHandle(Smi::New(lhs_index_value));
const Smi& rhs_index = Smi::ZoneHandle(Smi::New(rhs_index_value));
const Smi& length = Smi::ZoneHandle(Smi::New(length_value));
__ EnterDartFrame(0);
{
compiler::LeafRuntimeScope rt(assembler,
/*frame_size=*/0,
/*preserve_registers=*/false);
__ LoadObject(A0, str);
__ LoadObject(A1, lhs_index);
__ LoadObject(A2, rhs_index);
__ LoadObject(A3, length);
rt.Call(kCaseInsensitiveCompareUCS2RuntimeEntry, 4);
}
__ LeaveDartFrame();
__ ret(); // Return value is in A0.
}
ISOLATE_UNIT_TEST_CASE(CallLeafRuntimeStubCode) {
extern const Function& RegisterFakeFunction(const char* name,
const Code& code);
const char* str_value = "abAB";
intptr_t lhs_index_value = 0;
intptr_t rhs_index_value = 2;
intptr_t length_value = 2;
const char* kName = "Test_CallLeafRuntimeStubCode";
compiler::ObjectPoolBuilder object_pool_builder;
compiler::Assembler assembler(&object_pool_builder);
GenerateCallToCallLeafRuntimeStub(&assembler, str_value, lhs_index_value,
rhs_index_value, length_value);
SafepointWriteRwLocker ml(thread, thread->isolate_group()->program_lock());
const Code& code = Code::Handle(Code::FinalizeCodeAndNotify(
*CreateFunction("Test_CallLeafRuntimeStubCode"), nullptr, &assembler,
Code::PoolAttachment::kAttachPool));
if (FLAG_disassemble) {
OS::PrintErr("Disassemble:\n");
code.Disassemble();
}
const Function& function = RegisterFakeFunction(kName, code);
Instance& result = Instance::Handle();
result ^= DartEntry::InvokeFunction(function, Object::empty_array());
EXPECT_EQ(Bool::True().ptr(), result.ptr());
}
} // namespace dart
#endif // defined TARGET_ARCH_RISCV