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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/compiler/wasm-compiler.h" | 9 #include "src/compiler/wasm-compiler.h" |
10 #include "src/conversions.h" | 10 #include "src/conversions.h" |
11 #include "src/debug/debug.h" | 11 #include "src/debug/debug.h" |
12 #include "src/factory.h" | 12 #include "src/factory.h" |
13 #include "src/frames-inl.h" | 13 #include "src/frames-inl.h" |
14 #include "src/objects-inl.h" | 14 #include "src/objects-inl.h" |
15 #include "src/v8memory.h" | 15 #include "src/v8memory.h" |
16 #include "src/wasm/wasm-module.h" | 16 #include "src/wasm/wasm-module.h" |
17 | 17 |
18 namespace v8 { | 18 namespace v8 { |
19 namespace internal { | 19 namespace internal { |
20 | 20 |
| 21 RUNTIME_FUNCTION(Runtime_WasmMemorySize) { |
| 22 HandleScope scope(isolate); |
| 23 DCHECK_EQ(0, args.length()); |
| 24 |
| 25 Handle<JSObject> module_instance; |
| 26 { |
| 27 // Get the module JSObject |
| 28 DisallowHeapAllocation no_allocation; |
| 29 const Address entry = Isolate::c_entry_fp(isolate->thread_local_top()); |
| 30 Address pc = |
| 31 Memory::Address_at(entry + StandardFrameConstants::kCallerPCOffset); |
| 32 Code* code = |
| 33 isolate->inner_pointer_to_code_cache()->GetCacheEntry(pc)->code; |
| 34 Object* owning_instance = wasm::GetOwningWasmInstance(code); |
| 35 CHECK_NOT_NULL(owning_instance); |
| 36 module_instance = handle(JSObject::cast(owning_instance), isolate); |
| 37 } |
| 38 return *isolate->factory()->NewNumberFromInt( |
| 39 wasm::GetInstanceMemorySize(isolate, module_instance)); |
| 40 } |
| 41 |
21 RUNTIME_FUNCTION(Runtime_WasmGrowMemory) { | 42 RUNTIME_FUNCTION(Runtime_WasmGrowMemory) { |
22 HandleScope scope(isolate); | 43 HandleScope scope(isolate); |
23 DCHECK_EQ(1, args.length()); | 44 DCHECK_EQ(1, args.length()); |
24 CONVERT_UINT32_ARG_CHECKED(delta_pages, 0); | 45 CONVERT_UINT32_ARG_CHECKED(delta_pages, 0); |
25 Handle<JSObject> module_instance; | 46 Handle<JSObject> module_instance; |
26 { | 47 { |
27 // Get the module JSObject | 48 // Get the module JSObject |
28 DisallowHeapAllocation no_allocation; | 49 DisallowHeapAllocation no_allocation; |
29 const Address entry = Isolate::c_entry_fp(isolate->thread_local_top()); | 50 const Address entry = Isolate::c_entry_fp(isolate->thread_local_top()); |
30 Address pc = | 51 Address pc = |
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63 Object* exception = args[0]; | 84 Object* exception = args[0]; |
64 // The unwinder will only deliver exceptions to wasm if the exception is a | 85 // The unwinder will only deliver exceptions to wasm if the exception is a |
65 // Number or a Smi (which we have just converted to a Number.) This logic | 86 // Number or a Smi (which we have just converted to a Number.) This logic |
66 // lives in Isolate::is_catchable_by_wasm(Object*). | 87 // lives in Isolate::is_catchable_by_wasm(Object*). |
67 CHECK(exception->IsNumber()); | 88 CHECK(exception->IsNumber()); |
68 return exception; | 89 return exception; |
69 } | 90 } |
70 | 91 |
71 } // namespace internal | 92 } // namespace internal |
72 } // namespace v8 | 93 } // namespace v8 |
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