OLD | NEW |
1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 61 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
72 Label* then_label) { | 72 Label* then_label) { |
73 Label ok; | 73 Label ok; |
74 testq(result, result); | 74 testq(result, result); |
75 j(not_zero, &ok); | 75 j(not_zero, &ok); |
76 testq(op, op); | 76 testq(op, op); |
77 j(sign, then_label); | 77 j(sign, then_label); |
78 bind(&ok); | 78 bind(&ok); |
79 } | 79 } |
80 | 80 |
81 | 81 |
82 void MacroAssembler::ConstructAndTestJSFunction() { | |
83 const int initial_buffer_size = 4 * KB; | |
84 char* buffer = new char[initial_buffer_size]; | |
85 MacroAssembler masm(buffer, initial_buffer_size); | |
86 | |
87 const uint64_t secret = V8_INT64_C(0xdeadbeefcafebabe); | |
88 Handle<String> constant = | |
89 Factory::NewStringFromAscii(Vector<const char>("451", 3), TENURED); | |
90 #define __ ACCESS_MASM((&masm)) | |
91 // Construct a simple JSfunction here, using Assembler and MacroAssembler | |
92 // commands. | |
93 __ movq(rax, constant, RelocInfo::EMBEDDED_OBJECT); | |
94 __ push(rax); | |
95 __ CallRuntime(Runtime::kStringParseFloat, 1); | |
96 __ movq(kScratchRegister, secret, RelocInfo::NONE); | |
97 __ addq(rax, kScratchRegister); | |
98 __ ret(0); | |
99 #undef __ | |
100 CodeDesc desc; | |
101 masm.GetCode(&desc); | |
102 Code::Flags flags = Code::ComputeFlags(Code::FUNCTION); | |
103 Object* code = Heap::CreateCode(desc, NULL, flags, Handle<Object>::null()); | |
104 if (!code->IsFailure()) { | |
105 Handle<Code> code_handle(Code::cast(code)); | |
106 Handle<String> name = | |
107 Factory::NewStringFromAscii(Vector<const char>("foo", 3), NOT_TENURED); | |
108 Handle<JSFunction> function = | |
109 Factory::NewFunction(name, | |
110 JS_FUNCTION_TYPE, | |
111 JSObject::kHeaderSize, | |
112 code_handle, | |
113 true); | |
114 bool pending_exceptions; | |
115 Handle<Object> result = | |
116 Execution::Call(function, | |
117 Handle<Object>::cast(function), | |
118 0, | |
119 NULL, | |
120 &pending_exceptions); | |
121 CHECK(result->IsSmi()); | |
122 CHECK(secret + (451 << kSmiTagSize) == reinterpret_cast<uint64_t>(*result)); | |
123 } | |
124 } | |
125 | |
126 | |
127 void MacroAssembler::Abort(const char* msg) { | 82 void MacroAssembler::Abort(const char* msg) { |
128 // We want to pass the msg string like a smi to avoid GC | 83 // We want to pass the msg string like a smi to avoid GC |
129 // problems, however msg is not guaranteed to be aligned | 84 // problems, however msg is not guaranteed to be aligned |
130 // properly. Instead, we pass an aligned pointer that is | 85 // properly. Instead, we pass an aligned pointer that is |
131 // a proper v8 smi, but also pass the alignment difference | 86 // a proper v8 smi, but also pass the alignment difference |
132 // from the real pointer as a smi. | 87 // from the real pointer as a smi. |
133 intptr_t p1 = reinterpret_cast<intptr_t>(msg); | 88 intptr_t p1 = reinterpret_cast<intptr_t>(msg); |
134 intptr_t p0 = (p1 & ~kSmiTagMask) + kSmiTag; | 89 intptr_t p0 = (p1 & ~kSmiTagMask) + kSmiTag; |
135 // Note: p0 might not be a valid Smi *value*, but it has a valid Smi tag. | 90 // Note: p0 might not be a valid Smi *value*, but it has a valid Smi tag. |
136 ASSERT(reinterpret_cast<Object*>(p0)->IsSmi()); | 91 ASSERT(reinterpret_cast<Object*>(p0)->IsSmi()); |
(...skipping 703 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
840 push(rcx); | 795 push(rcx); |
841 | 796 |
842 // Clear the top frame. | 797 // Clear the top frame. |
843 ExternalReference c_entry_fp_address(Top::k_c_entry_fp_address); | 798 ExternalReference c_entry_fp_address(Top::k_c_entry_fp_address); |
844 movq(kScratchRegister, c_entry_fp_address); | 799 movq(kScratchRegister, c_entry_fp_address); |
845 movq(Operand(kScratchRegister, 0), Immediate(0)); | 800 movq(Operand(kScratchRegister, 0), Immediate(0)); |
846 } | 801 } |
847 | 802 |
848 | 803 |
849 } } // namespace v8::internal | 804 } } // namespace v8::internal |
OLD | NEW |