src/compiler/wasm-compiler.cc - Issue 2396433008: [wasm] Add guard regions to end of WebAssembly.Memory buffers

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Unified Diff: src/compiler/wasm-compiler.cc

Issue 2396433008: [wasm] Add guard regions to end of WebAssembly.Memory buffers (Closed)

Patch Set: Merge branch 'master' of https://chromium.googlesource.com/v8/v8 into guard-pages Created 4 years, 1 month ago

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Index: src/compiler/wasm-compiler.cc

diff --git a/src/compiler/wasm-compiler.cc b/src/compiler/wasm-compiler.cc

index baa6b7b41b0d9bc0b9dd3baa1a004c7cc169f00c..6c85b5d6b9ac990bdc3259917117c2d4eae4ea39 100644

--- a/src/compiler/wasm-compiler.cc

+++ b/src/compiler/wasm-compiler.cc

@@ -2960,6 +2960,7 @@ Node* WasmGraphBuilder::LoadMem(wasm::LocalType type, MachineType memtype,

if (aligned ||

jsgraph()->machine()->UnalignedLoadSupported(memtype, alignment)) {

if (FLAG_wasm_trap_handler) {

+ DCHECK(FLAG_wasm_guard_pages);

titzer 2016/11/07 19:54:52 I think it's better to have FLAG_wasm_trap_handler

Eric Holk 2016/11/08 23:58:15 Done.

Node* context = HeapConstant(module_->instance->context);

Node* position_node = jsgraph()->Int32Constant(position);

load = graph()->NewNode(jsgraph()->machine()->ProtectedLoad(memtype),