Move platform abstraction to base library

src/x64/codegen-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/codegen.h"
 #include "src/macro-assembler.h"
@@ skipping 17 matching lines @@
   masm->set_has_frame(false);
 }
 
 
 #define __ masm.
 
 
 UnaryMathFunction CreateExpFunction() {
   if (!FLAG_fast_math) return &std::exp;
   size_t actual_size;
-  byte* buffer = static_cast<byte*>(OS::Allocate(1 * KB, &actual_size, true));
+  byte* buffer =
+      static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true));
   if (buffer == NULL) return &std::exp;
   ExternalReference::InitializeMathExpData();
 
   MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size));
   // xmm0: raw double input.
   XMMRegister input = xmm0;
   XMMRegister result = xmm1;
   __ pushq(rax);
   __ pushq(rbx);
 
   MathExpGenerator::EmitMathExp(&masm, input, result, xmm2, rax, rbx);
 
   __ popq(rbx);
   __ popq(rax);
   __ movsd(xmm0, result);
   __ Ret();
 
   CodeDesc desc;
   masm.GetCode(&desc);
   ASSERT(!RelocInfo::RequiresRelocation(desc));
 
-  CPU::FlushICache(buffer, actual_size);
-  OS::ProtectCode(buffer, actual_size);
+  CpuFeatures::FlushICache(buffer, actual_size);
+  base::OS::ProtectCode(buffer, actual_size);
   return FUNCTION_CAST<UnaryMathFunction>(buffer);
 }
 
 
 UnaryMathFunction CreateSqrtFunction() {
   size_t actual_size;
   // Allocate buffer in executable space.
-  byte* buffer = static_cast<byte*>(OS::Allocate(1 * KB,
-                                                 &actual_size,
-                                                 true));
+  byte* buffer =
+      static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true));
   if (buffer == NULL) return &std::sqrt;
 
   MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size));
   // xmm0: raw double input.
   // Move double input into registers.
   __ sqrtsd(xmm0, xmm0);
   __ Ret();
 
   CodeDesc desc;
   masm.GetCode(&desc);
   ASSERT(!RelocInfo::RequiresRelocation(desc));
 
-  CPU::FlushICache(buffer, actual_size);
-  OS::ProtectCode(buffer, actual_size);
+  CpuFeatures::FlushICache(buffer, actual_size);
+  base::OS::ProtectCode(buffer, actual_size);
   return FUNCTION_CAST<UnaryMathFunction>(buffer);
 }
 
 
 #ifdef _WIN64
 typedef double (*ModuloFunction)(double, double);
 // Define custom fmod implementation.
 ModuloFunction CreateModuloFunction() {
   size_t actual_size;
-  byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize,
-                                                 &actual_size,
-                                                 true));
+  byte* buffer = static_cast<byte*>(
+      base::OS::Allocate(Assembler::kMinimalBufferSize, &actual_size, true));
   CHECK(buffer);
   Assembler masm(NULL, buffer, static_cast<int>(actual_size));
   // Generated code is put into a fixed, unmovable, buffer, and not into
   // the V8 heap. We can't, and don't, refer to any relocatable addresses
   // (e.g. the JavaScript nan-object).
 
   // Windows 64 ABI passes double arguments in xmm0, xmm1 and
   // returns result in xmm0.
   // Argument backing space is allocated on the stack above
   // the return address.
@@ skipping 55 matching lines @@
   Label clear_exceptions;
   __ testb(rax, Immediate(0x3f /* Any Exception*/));
   __ j(not_zero, &clear_exceptions);
   __ ret(0);
   __ bind(&clear_exceptions);
   __ fnclex();
   __ ret(0);
 
   CodeDesc desc;
   masm.GetCode(&desc);
-  OS::ProtectCode(buffer, actual_size);
+  base::OS::ProtectCode(buffer, actual_size);
   // Call the function from C++ through this pointer.
   return FUNCTION_CAST<ModuloFunction>(buffer);
 }
 
 #endif
 
 #undef __
 
 // -------------------------------------------------------------------------
 // Code generators
@@ skipping 474 matching lines @@
 }
 
 
 void Code::PatchPlatformCodeAge(Isolate* isolate,
                                 byte* sequence,
                                 Code::Age age,
                                 MarkingParity parity) {
   uint32_t young_length = isolate->code_aging_helper()->young_sequence_length();
   if (age == kNoAgeCodeAge) {
     isolate->code_aging_helper()->CopyYoungSequenceTo(sequence);
-    CPU::FlushICache(sequence, young_length);
+    CpuFeatures::FlushICache(sequence, young_length);
   } else {
     Code* stub = GetCodeAgeStub(isolate, age, parity);
     CodePatcher patcher(sequence, young_length);
     patcher.masm()->call(stub->instruction_start());
     patcher.masm()->Nop(
         kNoCodeAgeSequenceLength - Assembler::kShortCallInstructionLength);
   }
 }
 
 
@@ skipping 14 matching lines @@
     // argument_count_reg_ * times_pointer_size + (receiver - 1) * kPointerSize.
     return Operand(base_reg_, argument_count_reg_, times_pointer_size,
         displacement_to_last_argument + (receiver - 1 - index) * kPointerSize);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64