OLD | NEW |
1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // modification, are permitted provided that the following conditions are | 3 // found in the LICENSE file. |
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 | 4 |
28 #include <stdlib.h> | 5 #include "include/v8stdint.h" |
29 | 6 #include "src/base/build_config.h" |
30 #include "src/base/platform/platform.h" | 7 #include "src/base/platform/platform.h" |
31 #include "test/cctest/cctest.h" | 8 #include "test/cctest/cctest.h" |
32 | 9 |
33 using namespace ::v8::internal; | 10 #ifdef V8_CC_GNU |
34 | 11 |
35 #ifdef __GNUC__ | 12 static uintptr_t sp_addr = 0; |
36 #define ASM __asm__ __volatile__ | |
37 | 13 |
38 #if defined(_M_X64) || defined(__x86_64__) | 14 void GetStackPointer(const v8::FunctionCallbackInfo<v8::Value>& args) { |
39 #define GET_STACK_POINTER() \ | 15 #if V8_HOST_ARCH_X64 |
40 static int sp_addr = 0; \ | 16 __asm__ __volatile__("mov %%rsp, %0" : "=g"(sp_addr)); |
41 do { \ | 17 #elif V8_HOST_ARCH_IA32 |
42 ASM("mov %%rsp, %0" : "=g" (sp_addr)); \ | 18 __asm__ __volatile__("mov %%esp, %0" : "=g"(sp_addr)); |
43 } while (0) | 19 #elif V8_HOST_ARCH_ARM |
44 #elif defined(_M_IX86) || defined(__i386__) | 20 __asm__ __volatile__("str %%sp, %0" : "=g"(sp_addr)); |
45 #define GET_STACK_POINTER() \ | 21 #elif V8_HOST_ARCH_ARM64 |
46 static int sp_addr = 0; \ | 22 __asm__ __volatile__("mov x16, sp; str x16, %0" : "=g"(sp_addr)); |
47 do { \ | 23 #elif V8_HOST_ARCH_MIPS |
48 ASM("mov %%esp, %0" : "=g" (sp_addr)); \ | 24 __asm__ __volatile__("sw $sp, %0" : "=g"(sp_addr)); |
49 } while (0) | |
50 #elif defined(__ARMEL__) | |
51 #define GET_STACK_POINTER() \ | |
52 static int sp_addr = 0; \ | |
53 do { \ | |
54 ASM("str %%sp, %0" : "=g" (sp_addr)); \ | |
55 } while (0) | |
56 #elif defined(__AARCH64EL__) | |
57 #define GET_STACK_POINTER() \ | |
58 static int sp_addr = 0; \ | |
59 do { \ | |
60 ASM("mov x16, sp; str x16, %0" : "=g" (sp_addr)); \ | |
61 } while (0) | |
62 #elif defined(__MIPSEB__) || defined(__MIPSEL__) | |
63 #define GET_STACK_POINTER() \ | |
64 static int sp_addr = 0; \ | |
65 do { \ | |
66 ASM("sw $sp, %0" : "=g" (sp_addr)); \ | |
67 } while (0) | |
68 #else | 25 #else |
69 #error Host architecture was not detected as supported by v8 | 26 #error Host architecture was not detected as supported by v8 |
70 #endif | 27 #endif |
71 | 28 |
72 void GetStackPointer(const v8::FunctionCallbackInfo<v8::Value>& args) { | 29 args.GetReturnValue().Set(v8::Integer::NewFromUnsigned( |
73 GET_STACK_POINTER(); | 30 args.GetIsolate(), static_cast<uint32_t>(sp_addr))); |
74 args.GetReturnValue().Set(v8_num(sp_addr)); | |
75 } | 31 } |
76 | 32 |
77 | 33 |
78 TEST(StackAlignment) { | 34 TEST(StackAlignment) { |
79 v8::Isolate* isolate = CcTest::isolate(); | 35 v8::Isolate* isolate = CcTest::isolate(); |
80 v8::HandleScope handle_scope(isolate); | 36 v8::HandleScope handle_scope(isolate); |
81 v8::Handle<v8::ObjectTemplate> global_template = | 37 v8::Handle<v8::ObjectTemplate> global_template = |
82 v8::ObjectTemplate::New(isolate); | 38 v8::ObjectTemplate::New(isolate); |
83 global_template->Set(v8_str("get_stack_pointer"), | 39 global_template->Set(v8_str("get_stack_pointer"), |
84 v8::FunctionTemplate::New(isolate, GetStackPointer)); | 40 v8::FunctionTemplate::New(isolate, GetStackPointer)); |
85 | 41 |
86 LocalContext env(NULL, global_template); | 42 LocalContext env(NULL, global_template); |
87 CompileRun( | 43 CompileRun( |
88 "function foo() {" | 44 "function foo() {" |
89 " return get_stack_pointer();" | 45 " return get_stack_pointer();" |
90 "}"); | 46 "}"); |
91 | 47 |
92 v8::Local<v8::Object> global_object = env->Global(); | 48 v8::Local<v8::Object> global_object = env->Global(); |
93 v8::Local<v8::Function> foo = | 49 v8::Local<v8::Function> foo = |
94 v8::Local<v8::Function>::Cast(global_object->Get(v8_str("foo"))); | 50 v8::Local<v8::Function>::Cast(global_object->Get(v8_str("foo"))); |
95 | 51 |
96 v8::Local<v8::Value> result = foo->Call(global_object, 0, NULL); | 52 v8::Local<v8::Value> result = foo->Call(global_object, 0, NULL); |
97 CHECK_EQ(0, result->Int32Value() % v8::base::OS::ActivationFrameAlignment()); | 53 CHECK_EQ(0, result->Uint32Value() % v8::base::OS::ActivationFrameAlignment()); |
98 } | 54 } |
99 | 55 |
100 #undef GET_STACK_POINTERS | 56 #endif // V8_CC_GNU |
101 #undef ASM | |
102 #endif // __GNUC__ | |
OLD | NEW |