1c03a1924dcc113678c0ebe58aa7d3c855a657719yangguo@chromium.org// Copyright 2013 the V8 project authors. All rights reserved. 2d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org// Use of this source code is governed by a BSD-style license that can be 3d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org// found in the LICENSE file. 4c03a1924dcc113678c0ebe58aa7d3c855a657719yangguo@chromium.org 5d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org#include "include/v8stdint.h" 6d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org#include "src/base/build_config.h" 75de0074a922429f5e0ec2cf140c2d2989bf88140yangguo@chromium.org#include "src/base/platform/platform.h" 8196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "test/cctest/cctest.h" 9c03a1924dcc113678c0ebe58aa7d3c855a657719yangguo@chromium.org 10d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org#ifdef V8_CC_GNU 11c03a1924dcc113678c0ebe58aa7d3c855a657719yangguo@chromium.org 12d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.orgstatic uintptr_t sp_addr = 0; 13e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org 14d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.orgvoid GetStackPointer(const v8::FunctionCallbackInfo<v8::Value>& args) { 15d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org#if V8_HOST_ARCH_X64 16d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org __asm__ __volatile__("mov %%rsp, %0" : "=g"(sp_addr)); 17d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org#elif V8_HOST_ARCH_IA32 18d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org __asm__ __volatile__("mov %%esp, %0" : "=g"(sp_addr)); 19d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org#elif V8_HOST_ARCH_ARM 20d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org __asm__ __volatile__("str %%sp, %0" : "=g"(sp_addr)); 21d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org#elif V8_HOST_ARCH_ARM64 22d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org __asm__ __volatile__("mov x16, sp; str x16, %0" : "=g"(sp_addr)); 23d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org#elif V8_HOST_ARCH_MIPS 24d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org __asm__ __volatile__("sw $sp, %0" : "=g"(sp_addr)); 25d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org#elif V8_HOST_ARCH_MIPS64 26d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org __asm__ __volatile__("sd $sp, %0" : "=g"(sp_addr)); 27e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org#else 28e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org#error Host architecture was not detected as supported by v8 29e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org#endif 30e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org 31d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org args.GetReturnValue().Set(v8::Integer::NewFromUnsigned( 32d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org args.GetIsolate(), static_cast<uint32_t>(sp_addr))); 33e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org} 34e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org 35e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org 36e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.orgTEST(StackAlignment) { 37528ce02b8680a3ab6d75c7079f180a4016c69b7amachenbach@chromium.org v8::Isolate* isolate = CcTest::isolate(); 38e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org v8::HandleScope handle_scope(isolate); 399cbaabda8b4daeb06759ace10c926ab55bb69d7bulan@chromium.org v8::Handle<v8::ObjectTemplate> global_template = 409cbaabda8b4daeb06759ace10c926ab55bb69d7bulan@chromium.org v8::ObjectTemplate::New(isolate); 41e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org global_template->Set(v8_str("get_stack_pointer"), 424f99be9ff2091451687891a05d99cc31990de709hpayer@chromium.org v8::FunctionTemplate::New(isolate, GetStackPointer)); 43e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org 44e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org LocalContext env(NULL, global_template); 45e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org CompileRun( 46e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org "function foo() {" 47e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org " return get_stack_pointer();" 48e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org "}"); 49e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org 50e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org v8::Local<v8::Object> global_object = env->Global(); 51e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org v8::Local<v8::Function> foo = 52e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org v8::Local<v8::Function>::Cast(global_object->Get(v8_str("foo"))); 53e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org 54e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org v8::Local<v8::Value> result = foo->Call(global_object, 0, NULL); 55d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org CHECK_EQ(0, result->Uint32Value() % v8::base::OS::ActivationFrameAlignment()); 56e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org} 57e0e1b0d3e70c933d36ed381d511e9fda39f2a751mstarzinger@chromium.org 58d3df75b4472c9d5d4d2615aaea74d2adce4160f8machenbach@chromium.org#endif // V8_CC_GNU 59