1 // Copyright 2013 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 #include <stdlib.h> 29 30 #include "cctest.h" 31 #include "platform.h" 32 33 using namespace ::v8::internal; 34 35 TEST(NumberOfCores) { 36 CHECK_GT(OS::NumberOfCores(), 0); 37 } 38 39 40 #ifdef __GNUC__ 41 #define ASM __asm__ __volatile__ 42 43 #if defined(_M_X64) || defined(__x86_64__) 44 #define GET_STACK_POINTER() \ 45 static int sp_addr = 0; \ 46 do { \ 47 ASM("mov %%rsp, %0" : "=g" (sp_addr)); \ 48 } while (0) 49 #elif defined(_M_IX86) || defined(__i386__) 50 #define GET_STACK_POINTER() \ 51 static int sp_addr = 0; \ 52 do { \ 53 ASM("mov %%esp, %0" : "=g" (sp_addr)); \ 54 } while (0) 55 #elif defined(__ARMEL__) 56 #define GET_STACK_POINTER() \ 57 static int sp_addr = 0; \ 58 do { \ 59 ASM("str %%sp, %0" : "=g" (sp_addr)); \ 60 } while (0) 61 #elif defined(__MIPSEL__) 62 #define GET_STACK_POINTER() \ 63 static int sp_addr = 0; \ 64 do { \ 65 ASM("sw $sp, %0" : "=g" (sp_addr)); \ 66 } while (0) 67 #else 68 #error Host architecture was not detected as supported by v8 69 #endif 70 71 void GetStackPointer(const v8::FunctionCallbackInfo<v8::Value>& args) { 72 GET_STACK_POINTER(); 73 args.GetReturnValue().Set(v8_num(sp_addr)); 74 } 75 76 77 TEST(StackAlignment) { 78 v8::Isolate* isolate = v8::Isolate::GetCurrent(); 79 v8::HandleScope handle_scope(isolate); 80 v8::Handle<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New(); 81 global_template->Set(v8_str("get_stack_pointer"), 82 v8::FunctionTemplate::New(GetStackPointer)); 83 84 LocalContext env(NULL, global_template); 85 CompileRun( 86 "function foo() {" 87 " return get_stack_pointer();" 88 "}"); 89 90 v8::Local<v8::Object> global_object = env->Global(); 91 v8::Local<v8::Function> foo = 92 v8::Local<v8::Function>::Cast(global_object->Get(v8_str("foo"))); 93 94 v8::Local<v8::Value> result = foo->Call(global_object, 0, NULL); 95 CHECK_EQ(0, result->Int32Value() % OS::ActivationFrameAlignment()); 96 } 97 98 #undef GET_STACK_POINTERS 99 #undef ASM 100 #endif // __GNUC__ 101
