blob: 000cf34c87c898e8e67db0fd331f82abbdd30b77 [file] [log] [blame]
// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <iostream> // NOLINT(readability/streams)
#include "src/v8.h"
#include "test/cctest/cctest.h"
#include "src/arm/assembler-arm-inl.h"
#include "src/arm/simulator-arm.h"
#include "src/disassembler.h"
#include "src/factory.h"
#include "src/ostreams.h"
#include "test/cctest/compiler/c-signature.h"
#include "test/cctest/compiler/call-tester.h"
namespace v8 {
namespace internal {
namespace wasm {
#define __ assm.
static int32_t DummyStaticFunction(Object* result) { return 1; }
TEST(WasmRelocationArmContextReference) {
Isolate* isolate = CcTest::i_isolate();
HandleScope scope(isolate);
v8::internal::byte buffer[4096];
int32_t imm = 1234567;
Assembler assm(isolate, buffer, sizeof buffer);
__ mov(r0, Operand(imm, RelocInfo::WASM_CONTEXT_REFERENCE));
__ mov(pc, Operand(lr));
CodeDesc desc;
assm.GetCode(isolate, &desc);
Handle<Code> code =
isolate->factory()->NewCode(desc, Code::STUB, Handle<Code>());
compiler::CSignatureOf<int32_t> csig;
compiler::CodeRunner<int32_t> runnable(isolate, code, &csig);
int32_t ret_value = runnable.Call();
CHECK_EQ(ret_value, imm);
#ifdef DEBUG
OFStream os(stdout);
::printf("f() = %d\n\n", ret_value);
int offset = 1234;
// Relocating references by offset
int mode_mask = (1 << RelocInfo::WASM_CONTEXT_REFERENCE);
for (RelocIterator it(*code, mode_mask); !it.done(); {
// TODO(6792): No longer needed once WebAssembly code is off heap.
CodeSpaceMemoryModificationScope modification_scope(isolate->heap());
isolate, it.rinfo()->wasm_context_reference() + offset,
// Call into relocated code object
ret_value = runnable.Call();
CHECK_EQ((imm + offset), ret_value);
#ifdef DEBUG
::printf("f() = %d\n\n", ret_value);
#undef __
} // namespace wasm
} // namespace internal
} // namespace v8