v8/src/wasm/memory-tracing.h
Yang Guo a6eeea35cb Move code generation related files to src/codegen
Bug: v8:9247

TBR=bmeurer@chromium.org,neis@chromium.org
NOPRESUBMIT=true

Change-Id: Ia1e49d1aac09c4ff9e05d58fab9d08dd71198878
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1621931
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61682}
2019-05-21 10:33:39 +00:00

41 lines
1.2 KiB
C++

// Copyright 2017 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.
#ifndef V8_WASM_MEMORY_TRACING_H_
#define V8_WASM_MEMORY_TRACING_H_
#include <cstdint>
#include "src/codegen/machine-type.h"
#include "src/wasm/wasm-tier.h"
namespace v8 {
namespace internal {
namespace wasm {
// This struct is create in generated code, hence use low-level types.
struct MemoryTracingInfo {
uint32_t address;
uint8_t is_store; // 0 or 1
uint8_t mem_rep;
static_assert(
std::is_same<decltype(mem_rep),
std::underlying_type<MachineRepresentation>::type>::value,
"MachineRepresentation uses uint8_t");
MemoryTracingInfo(uint32_t addr, bool is_store, MachineRepresentation rep)
: address(addr), is_store(is_store), mem_rep(static_cast<uint8_t>(rep)) {}
};
// Callback for tracing a memory operation for debugging.
// Triggered by --wasm-trace-memory.
void TraceMemoryOperation(ExecutionTier, const MemoryTracingInfo* info,
int func_index, int position, uint8_t* mem_start);
} // namespace wasm
} // namespace internal
} // namespace v8
#endif // V8_WASM_MEMORY_TRACING_H_