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| 1 // Copyright 2016 the V8 project authors. All rights reserved. | 1 // Copyright 2016 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "src/runtime/runtime-utils.h" | 5 #include "src/runtime/runtime-utils.h" |
| 6 | 6 |
| 7 #include "src/arguments.h" | 7 #include "src/arguments.h" |
| 8 #include "src/assembler.h" | 8 #include "src/assembler.h" |
| 9 #include "src/conversions.h" | 9 #include "src/conversions.h" |
| 10 #include "src/debug/debug.h" | 10 #include "src/debug/debug.h" |
| 11 #include "src/factory.h" | 11 #include "src/factory.h" |
| 12 #include "src/frames-inl.h" | 12 #include "src/frames-inl.h" |
| 13 #include "src/objects-inl.h" | 13 #include "src/objects-inl.h" |
| 14 #include "src/v8memory.h" | 14 #include "src/v8memory.h" |
| 15 #include "src/wasm/wasm-module.h" | 15 #include "src/wasm/wasm-module.h" |
| 16 | 16 |
| 17 namespace v8 { | 17 namespace v8 { |
| 18 namespace internal { | 18 namespace internal { |
| 19 | 19 |
| 20 RUNTIME_FUNCTION(Runtime_WasmGrowMemory) { | 20 RUNTIME_FUNCTION(Runtime_WasmGrowMemory) { |
| 21 HandleScope scope(isolate); | 21 HandleScope scope(isolate); |
| 22 DCHECK_EQ(1, args.length()); | 22 DCHECK_EQ(1, args.length()); |
| 23 uint32_t delta_pages = 0; | 23 uint32_t delta_pages = 0; |
| 24 RUNTIME_ASSERT(args[0]->ToUint32(&delta_pages)); | 24 CHECK(args[0]->ToUint32(&delta_pages)); |
| 25 Handle<JSObject> module_object; | 25 Handle<JSObject> module_object; |
| 26 | 26 |
| 27 { | 27 { |
| 28 // Get the module JSObject | 28 // Get the module JSObject |
| 29 DisallowHeapAllocation no_allocation; | 29 DisallowHeapAllocation no_allocation; |
| 30 const Address entry = Isolate::c_entry_fp(isolate->thread_local_top()); | 30 const Address entry = Isolate::c_entry_fp(isolate->thread_local_top()); |
| 31 Address pc = | 31 Address pc = |
| 32 Memory::Address_at(entry + StandardFrameConstants::kCallerPCOffset); | 32 Memory::Address_at(entry + StandardFrameConstants::kCallerPCOffset); |
| 33 Code* code = | 33 Code* code = |
| 34 isolate->inner_pointer_to_code_cache()->GetCacheEntry(pc)->code; | 34 isolate->inner_pointer_to_code_cache()->GetCacheEntry(pc)->code; |
| 35 FixedArray* deopt_data = code->deoptimization_data(); | 35 FixedArray* deopt_data = code->deoptimization_data(); |
| 36 DCHECK(deopt_data->length() == 2); | 36 DCHECK(deopt_data->length() == 2); |
| 37 module_object = Handle<JSObject>::cast(handle(deopt_data->get(0), isolate)); | 37 module_object = Handle<JSObject>::cast(handle(deopt_data->get(0), isolate)); |
| 38 RUNTIME_ASSERT(!module_object->IsNull(isolate)); | 38 CHECK(!module_object->IsNull(isolate)); |
| 39 } | 39 } |
| 40 | 40 |
| 41 Address old_mem_start, new_mem_start; | 41 Address old_mem_start, new_mem_start; |
| 42 uint32_t old_size, new_size; | 42 uint32_t old_size, new_size; |
| 43 const int kWasmMemArrayBuffer = 2; | 43 const int kWasmMemArrayBuffer = 2; |
| 44 | 44 |
| 45 // Get mem buffer associated with module object | 45 // Get mem buffer associated with module object |
| 46 Handle<Object> obj(module_object->GetInternalField(kWasmMemArrayBuffer), | 46 Handle<Object> obj(module_object->GetInternalField(kWasmMemArrayBuffer), |
| 47 isolate); | 47 isolate); |
| 48 | 48 |
| (...skipping 47 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 96 memset(new_mem_start + old_size, 0, new_size - old_size); | 96 memset(new_mem_start + old_size, 0, new_size - old_size); |
| 97 } | 97 } |
| 98 | 98 |
| 99 Handle<JSArrayBuffer> buffer = isolate->factory()->NewJSArrayBuffer(); | 99 Handle<JSArrayBuffer> buffer = isolate->factory()->NewJSArrayBuffer(); |
| 100 JSArrayBuffer::Setup(buffer, isolate, false, new_mem_start, new_size); | 100 JSArrayBuffer::Setup(buffer, isolate, false, new_mem_start, new_size); |
| 101 buffer->set_is_neuterable(false); | 101 buffer->set_is_neuterable(false); |
| 102 | 102 |
| 103 // Set new buffer to be wasm memory | 103 // Set new buffer to be wasm memory |
| 104 module_object->SetInternalField(kWasmMemArrayBuffer, *buffer); | 104 module_object->SetInternalField(kWasmMemArrayBuffer, *buffer); |
| 105 | 105 |
| 106 RUNTIME_ASSERT(wasm::UpdateWasmModuleMemory( | 106 CHECK(wasm::UpdateWasmModuleMemory(module_object, old_mem_start, |
| 107 module_object, old_mem_start, new_mem_start, old_size, new_size)); | 107 new_mem_start, old_size, new_size)); |
| 108 | 108 |
| 109 return *isolate->factory()->NewNumberFromUint(old_size / | 109 return *isolate->factory()->NewNumberFromUint(old_size / |
| 110 wasm::WasmModule::kPageSize); | 110 wasm::WasmModule::kPageSize); |
| 111 } | 111 } |
| 112 | 112 |
| 113 } // namespace internal | 113 } // namespace internal |
| 114 } // namespace v8 | 114 } // namespace v8 |
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