1 // Copyright 2017 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "src/wasm/memory-tracing.h" 6 7 #include "src/utils.h" 8 #include "src/v8memory.h" 9 10 namespace v8 { 11 namespace internal { 12 namespace wasm { 13 14 void TraceMemoryOperation(ExecutionTier tier, const MemoryTracingInfo* info, 15 int func_index, int position, uint8_t* mem_start) { 16 EmbeddedVector<char, 64> value; 17 auto mem_rep = static_cast<MachineRepresentation>(info->mem_rep); 18 switch (mem_rep) { 19 #define TRACE_TYPE(rep, str, format, ctype1, ctype2) \ 20 case MachineRepresentation::rep: \ 21 SNPrintF(value, str ":" format, \ 22 ReadLittleEndianValue<ctype1>( \ 23 reinterpret_cast<Address>(mem_start) + info->address), \ 24 ReadLittleEndianValue<ctype2>( \ 25 reinterpret_cast<Address>(mem_start) + info->address)); \ 26 break; 27 TRACE_TYPE(kWord8, " i8", "%d / %02x", uint8_t, uint8_t) 28 TRACE_TYPE(kWord16, "i16", "%d / %04x", uint16_t, uint16_t) 29 TRACE_TYPE(kWord32, "i32", "%d / %08x", uint32_t, uint32_t) 30 TRACE_TYPE(kWord64, "i64", "%" PRId64 " / %016" PRIx64, uint64_t, uint64_t) 31 TRACE_TYPE(kFloat32, "f32", "%f / %08x", float, uint32_t) 32 TRACE_TYPE(kFloat64, "f64", "%f / %016" PRIx64, double, uint64_t) 33 #undef TRACE_TYPE 34 default: 35 SNPrintF(value, "???"); 36 } 37 const char* eng = "?"; 38 switch (tier) { 39 case ExecutionTier::kOptimized: 40 eng = "turbofan"; 41 break; 42 case ExecutionTier::kBaseline: 43 eng = "liftoff"; 44 break; 45 case ExecutionTier::kInterpreter: 46 eng = "interpreter"; 47 break; 48 } 49 printf("%-11s func:%6d+0x%-6x%s %08x val: %s\n", eng, func_index, position, 50 info->is_store ? " store to" : "load from", info->address, 51 value.start()); 52 } 53 54 } // namespace wasm 55 } // namespace internal 56 } // namespace v8 57
