c65ae4f10c
R=svenpanne@chromium.org Review URL: https://codereview.chromium.org/877753007 Cr-Commit-Position: refs/heads/master@{#26346}
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
// Copyright 2013 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <stdint.h>
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#include "src/base/build_config.h"
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#include "src/base/platform/platform.h"
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#include "test/cctest/cctest.h"
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#ifdef V8_CC_GNU
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static uintptr_t sp_addr = 0;
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void GetStackPointer(const v8::FunctionCallbackInfo<v8::Value>& args) {
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#if V8_HOST_ARCH_X64
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__asm__ __volatile__("mov %%rsp, %0" : "=g"(sp_addr));
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#elif V8_HOST_ARCH_IA32
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__asm__ __volatile__("mov %%esp, %0" : "=g"(sp_addr));
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#elif V8_HOST_ARCH_ARM
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__asm__ __volatile__("str %%sp, %0" : "=g"(sp_addr));
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#elif V8_HOST_ARCH_ARM64
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__asm__ __volatile__("mov x16, sp; str x16, %0" : "=g"(sp_addr));
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#elif V8_HOST_ARCH_MIPS
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__asm__ __volatile__("sw $sp, %0" : "=g"(sp_addr));
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#elif V8_HOST_ARCH_MIPS64
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__asm__ __volatile__("sd $sp, %0" : "=g"(sp_addr));
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#elif defined(__PPC64__) || defined(_ARCH_PPC64)
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__asm__ __volatile__("std 1, %0" : "=g"(sp_addr));
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#elif defined(__PPC__) || defined(_ARCH_PPC)
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__asm__ __volatile__("stw 1, %0" : "=g"(sp_addr));
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#else
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#error Host architecture was not detected as supported by v8
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#endif
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args.GetReturnValue().Set(v8::Integer::NewFromUnsigned(
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args.GetIsolate(), static_cast<uint32_t>(sp_addr)));
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}
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TEST(StackAlignment) {
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v8::Isolate* isolate = CcTest::isolate();
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v8::HandleScope handle_scope(isolate);
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v8::Handle<v8::ObjectTemplate> global_template =
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v8::ObjectTemplate::New(isolate);
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global_template->Set(v8_str("get_stack_pointer"),
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v8::FunctionTemplate::New(isolate, GetStackPointer));
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LocalContext env(NULL, global_template);
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CompileRun(
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"function foo() {"
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" return get_stack_pointer();"
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"}");
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v8::Local<v8::Object> global_object = env->Global();
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v8::Local<v8::Function> foo =
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v8::Local<v8::Function>::Cast(global_object->Get(v8_str("foo")));
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v8::Local<v8::Value> result = foo->Call(global_object, 0, NULL);
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CHECK_EQ(0u,
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result->Uint32Value() % v8::base::OS::ActivationFrameAlignment());
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}
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#endif // V8_CC_GNU
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