v8/test/cctest/test-platform.cc
Camillo Bruni f2e2809c23 [api][cleanup] Use Template::Set with const char* name
Using the Template::Set method which const char name is more ergonomic
and it creates directly an internalized name instead of the normal
string that most users pass in.

Bug: v8:10884
Change-Id: I00c6d49fee9de16b8ebbfe75be4b383831f0d4dd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2400980
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69787}
2020-09-09 15:39:36 +00:00

76 lines
2.5 KiB
C++

// Copyright 2013 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 "src/base/build_config.h"
#include "src/base/platform/platform.h"
#include "test/cctest/cctest.h"
using OS = v8::base::OS;
namespace v8 {
namespace internal {
#ifdef V8_CC_GNU
static uintptr_t sp_addr = 0;
void GetStackPointer(const v8::FunctionCallbackInfo<v8::Value>& args) {
#if V8_HOST_ARCH_X64
__asm__ __volatile__("mov %%rsp, %0" : "=g"(sp_addr));
#elif V8_HOST_ARCH_IA32
__asm__ __volatile__("mov %%esp, %0" : "=g"(sp_addr));
#elif V8_HOST_ARCH_ARM
__asm__ __volatile__("str sp, %0" : "=g"(sp_addr));
#elif V8_HOST_ARCH_ARM64
__asm__ __volatile__("mov x16, sp; str x16, %0" : "=g"(sp_addr));
#elif V8_HOST_ARCH_MIPS
__asm__ __volatile__("sw $sp, %0" : "=g"(sp_addr));
#elif V8_HOST_ARCH_MIPS64
__asm__ __volatile__("sd $sp, %0" : "=g"(sp_addr));
#elif defined(__s390x__) || defined(_ARCH_S390X)
__asm__ __volatile__("stg %%r15, %0" : "=m"(sp_addr));
#elif defined(__s390__) || defined(_ARCH_S390)
__asm__ __volatile__("st 15, %0" : "=m"(sp_addr));
#elif defined(__PPC64__) || defined(_ARCH_PPC64)
__asm__ __volatile__("std 1, %0" : "=g"(sp_addr));
#elif defined(__PPC__) || defined(_ARCH_PPC)
__asm__ __volatile__("stw 1, %0" : "=g"(sp_addr));
#else
#error Host architecture was not detected as supported by v8
#endif
args.GetReturnValue().Set(v8::Integer::NewFromUnsigned(
args.GetIsolate(), static_cast<uint32_t>(sp_addr)));
}
TEST(StackAlignment) {
v8::Isolate* isolate = CcTest::isolate();
v8::HandleScope handle_scope(isolate);
v8::Local<v8::ObjectTemplate> global_template =
v8::ObjectTemplate::New(isolate);
global_template->Set(isolate, "get_stack_pointer",
v8::FunctionTemplate::New(isolate, GetStackPointer));
LocalContext env(nullptr, global_template);
CompileRun(
"function foo() {"
" return get_stack_pointer();"
"}");
v8::Local<v8::Object> global_object = env->Global();
v8::Local<v8::Function> foo = v8::Local<v8::Function>::Cast(
global_object->Get(isolate->GetCurrentContext(), v8_str("foo"))
.ToLocalChecked());
v8::Local<v8::Value> result =
foo->Call(isolate->GetCurrentContext(), global_object, 0, nullptr)
.ToLocalChecked();
CHECK_EQ(0u, result->Uint32Value(isolate->GetCurrentContext()).FromJust() %
OS::ActivationFrameAlignment());
}
#endif // V8_CC_GNU
} // namespace internal
} // namespace v8