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// 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.
#include "src/wasm/memory-tracing.h"
#include "src/utils.h"
#include "src/v8memory.h"
#include "src/vector.h"
namespace v8 {
namespace internal {
namespace wasm {
void TraceMemoryOperation(ExecutionTier tier, const MemoryTracingInfo* info,
int func_index, int position, uint8_t* mem_start) {
EmbeddedVector<char, 64> value;
auto mem_rep = static_cast<MachineRepresentation>(info->mem_rep);
switch (mem_rep) {
#define TRACE_TYPE(rep, str, format, ctype1, ctype2) \
case MachineRepresentation::rep: \
SNPrintF(value, str ":" format, \
ReadLittleEndianValue<ctype1>( \
reinterpret_cast<Address>(mem_start) + info->address), \
ReadLittleEndianValue<ctype2>( \
reinterpret_cast<Address>(mem_start) + info->address)); \
break;
TRACE_TYPE(kWord8, " i8", "%d / %02x", uint8_t, uint8_t)
TRACE_TYPE(kWord16, "i16", "%d / %04x", uint16_t, uint16_t)
TRACE_TYPE(kWord32, "i32", "%d / %08x", uint32_t, uint32_t)
TRACE_TYPE(kWord64, "i64", "%" PRId64 " / %016" PRIx64, uint64_t, uint64_t)
TRACE_TYPE(kFloat32, "f32", "%f / %08x", float, uint32_t)
TRACE_TYPE(kFloat64, "f64", "%f / %016" PRIx64, double, uint64_t)
#undef TRACE_TYPE
default:
SNPrintF(value, "???");
}
const char* eng = "?";
switch (tier) {
case ExecutionTier::kOptimized:
eng = "turbofan";
break;
case ExecutionTier::kBaseline:
eng = "liftoff";
break;
case ExecutionTier::kInterpreter:
eng = "interpreter";
break;
}
printf("%-11s func:%6d+0x%-6x%s %08x val: %s\n", eng, func_index, position,
info->is_store ? " store to" : "load from", info->address,
value.start());
}
} // namespace wasm
} // namespace internal
} // namespace v8
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