| // Copyright 2013 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include <stdlib.h> |
| |
| #include "src/base/platform/platform.h" |
| #include "test/cctest/cctest.h" |
| |
| using namespace ::v8::internal; |
| |
| #ifdef __GNUC__ |
| #define ASM __asm__ __volatile__ |
| |
| #if defined(_M_X64) || defined(__x86_64__) |
| #define GET_STACK_POINTER() \ |
| static int sp_addr = 0; \ |
| do { \ |
| ASM("mov %%rsp, %0" : "=g" (sp_addr)); \ |
| } while (0) |
| #elif defined(_M_IX86) || defined(__i386__) |
| #define GET_STACK_POINTER() \ |
| static int sp_addr = 0; \ |
| do { \ |
| ASM("mov %%esp, %0" : "=g" (sp_addr)); \ |
| } while (0) |
| #elif defined(__ARMEL__) |
| #define GET_STACK_POINTER() \ |
| static int sp_addr = 0; \ |
| do { \ |
| ASM("str %%sp, %0" : "=g" (sp_addr)); \ |
| } while (0) |
| #elif defined(__AARCH64EL__) |
| #define GET_STACK_POINTER() \ |
| static int sp_addr = 0; \ |
| do { \ |
| ASM("mov x16, sp; str x16, %0" : "=g" (sp_addr)); \ |
| } while (0) |
| #elif defined(__MIPSEB__) || defined(__MIPSEL__) |
| #define GET_STACK_POINTER() \ |
| static int sp_addr = 0; \ |
| do { \ |
| ASM("sw $sp, %0" : "=g" (sp_addr)); \ |
| } while (0) |
| #else |
| #error Host architecture was not detected as supported by v8 |
| #endif |
| |
| void GetStackPointer(const v8::FunctionCallbackInfo<v8::Value>& args) { |
| GET_STACK_POINTER(); |
| args.GetReturnValue().Set(v8_num(sp_addr)); |
| } |
| |
| |
| TEST(StackAlignment) { |
| v8::Isolate* isolate = CcTest::isolate(); |
| v8::HandleScope handle_scope(isolate); |
| v8::Handle<v8::ObjectTemplate> global_template = |
| v8::ObjectTemplate::New(isolate); |
| global_template->Set(v8_str("get_stack_pointer"), |
| v8::FunctionTemplate::New(isolate, GetStackPointer)); |
| |
| LocalContext env(NULL, 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(v8_str("foo"))); |
| |
| v8::Local<v8::Value> result = foo->Call(global_object, 0, NULL); |
| CHECK_EQ(0, result->Int32Value() % v8::base::OS::ActivationFrameAlignment()); |
| } |
| |
| #undef GET_STACK_POINTERS |
| #undef ASM |
| #endif // __GNUC__ |