6b909391fc
The implementation can be greatly simplified by using variadic templates. R=mstarzinger@chromium.org Change-Id: I8dbeea3d570bf0fac83109f334c48dbe39aaa853 Reviewed-on: https://chromium-review.googlesource.com/859785 Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#50611}
86 lines
2.4 KiB
C++
86 lines
2.4 KiB
C++
// 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/arm64/assembler-arm64-inl.h"
|
|
#include "src/arm64/macro-assembler-arm64-inl.h"
|
|
#include "src/arm64/simulator-arm64.h"
|
|
#include "src/arm64/utils-arm64.h"
|
|
#include "src/disassembler.h"
|
|
#include "src/factory.h"
|
|
#include "src/macro-assembler.h"
|
|
#include "src/objects-inl.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 __ masm.
|
|
|
|
static int64_t DummyStaticFunction(Object* result) { return 1; }
|
|
|
|
TEST(WasmRelocationArm64ContextReference) {
|
|
Isolate* isolate = CcTest::i_isolate();
|
|
HandleScope scope(isolate);
|
|
v8::internal::byte buffer[4096];
|
|
DummyStaticFunction(nullptr);
|
|
int64_t imm = 1234567;
|
|
|
|
MacroAssembler masm(isolate, buffer, sizeof buffer,
|
|
v8::internal::CodeObjectRequired::kYes);
|
|
|
|
__ Mov(x0, Immediate(imm, RelocInfo::WASM_CONTEXT_REFERENCE));
|
|
__ Ret();
|
|
|
|
CodeDesc desc;
|
|
masm.GetCode(isolate, &desc);
|
|
Handle<Code> code =
|
|
isolate->factory()->NewCode(desc, Code::STUB, Handle<Code>());
|
|
|
|
compiler::CSignatureOf<int64_t> csig;
|
|
compiler::CodeRunner<int64_t> runnable(isolate, code, &csig);
|
|
int64_t ret_value = runnable.Call();
|
|
CHECK_EQ(ret_value, imm);
|
|
|
|
#ifdef DEBUG
|
|
OFStream os(stdout);
|
|
code->Print(os);
|
|
::printf("f() = %" PRIx64 "\n\n", ret_value);
|
|
#endif
|
|
int offset = 1234;
|
|
|
|
// Relocating reference by offset
|
|
int mode_mask = (1 << RelocInfo::WASM_CONTEXT_REFERENCE);
|
|
for (RelocIterator it(*code, mode_mask); !it.done(); it.next()) {
|
|
// TODO(6792): No longer needed once WebAssembly code is off heap.
|
|
CodeSpaceMemoryModificationScope modification_scope(isolate->heap());
|
|
DCHECK(RelocInfo::IsWasmContextReference(it.rinfo()->rmode()));
|
|
it.rinfo()->set_wasm_context_reference(
|
|
isolate, it.rinfo()->wasm_context_reference() + offset,
|
|
SKIP_ICACHE_FLUSH);
|
|
}
|
|
|
|
// Call into relocated code object
|
|
ret_value = runnable.Call();
|
|
CHECK_EQ((imm + offset), ret_value);
|
|
|
|
#ifdef DEBUG
|
|
code->Print(os);
|
|
::printf("f() = %" PRIx64 "\n\n", ret_value);
|
|
#endif
|
|
}
|
|
|
|
#undef __
|
|
|
|
} // namespace wasm
|
|
} // namespace internal
|
|
} // namespace v8
|