[wasm] Initial signal handler

test/cctest/wasm/test-run-wasm-64.cc

 // Copyright 2015 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 <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "src/base/bits.h"
+#include "src/trap-handler/trap-handler.h"
 #include "src/wasm/wasm-macro-gen.h"
 
 #include "test/cctest/cctest.h"
 #include "test/cctest/compiler/value-helper.h"
 #include "test/cctest/wasm/wasm-run-utils.h"
 #include "test/common/wasm/test-signatures.h"
 
 // If the target architecture is 64-bit, enable all tests.
 #if !V8_TARGET_ARCH_32_BIT || V8_TARGET_ARCH_X64
 #define WASM_64 1
@@ skipping 1433 matching lines @@
 
   FOR_UINT64_INPUTS(i) {
     FOR_UINT64_INPUTS(j) {
       int64_t expected = bits::RotateLeft64(*i, *j & 0x3f);
       CHECK_EQ(expected, r.Call(*i, *j));
     }
   }
 }
 
 WASM_EXEC_TEST_WITH_TRAP(StoreMem_offset_oob_i64) {
+  if (trap_handler::EnableTrapHandler()) {
+    // With trap handlers enabled, we need additional guard pages and such set
+    // up. This path does not enable these, so we skip this test. The behavior
+    // covered by this tests is also covered by mjsunit tests, such as
+    // test/mjsunit/wasm/import-memory.js
+    return;
+  }
   static const MachineType machineTypes[] = {
       MachineType::Int8(),   MachineType::Uint8(),  MachineType::Int16(),
       MachineType::Uint16(), MachineType::Int32(),  MachineType::Uint32(),
       MachineType::Int64(),  MachineType::Uint64(), MachineType::Float32(),
       MachineType::Float64()};
 
   for (size_t m = 0; m < arraysize(machineTypes); m++) {
     WasmRunner<int32_t, uint32_t> r(execution_mode);
     byte* memory = r.module().AddMemoryElems<byte>(32);
     r.module().RandomizeMemory(1119 + static_cast<int>(m));
@@ skipping 118 matching lines @@
         CHECK_EQ(expected, result);
       }
     }
   }
 }
 
 WASM_EXEC_TEST(MixedCall_i64_0) { Run_WasmMixedCall_N(execution_mode, 0); }
 WASM_EXEC_TEST(MixedCall_i64_1) { Run_WasmMixedCall_N(execution_mode, 1); }
 WASM_EXEC_TEST(MixedCall_i64_2) { Run_WasmMixedCall_N(execution_mode, 2); }
 WASM_EXEC_TEST(MixedCall_i64_3) { Run_WasmMixedCall_N(execution_mode, 3); }