Introduce x87 port

src/platform-posix.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.
 
 // Platform-specific code for POSIX goes here. This is not a platform on its
 // own, but contains the parts which are the same across the POSIX platforms
 // Linux, MacOS, FreeBSD, OpenBSD, NetBSD and QNX.
 
 #include <dlfcn.h>
 #include <pthread.h>
@@ skipping 424 matching lines @@
     // If the length is zero, the assignment fails.
     if (str.length() > 0)
       str[str.length() - 1] = '\0';
     return -1;
   } else {
     return n;
   }
 }
 
 
-#if V8_TARGET_ARCH_IA32
+#if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87
 static void MemMoveWrapper(void* dest, const void* src, size_t size) {
   memmove(dest, src, size);
 }
 
 
 // Initialize to library version so we can call this at any time during startup.
 static OS::MemMoveFunction memmove_function = &MemMoveWrapper;
 
 // Defined in codegen-ia32.cc.
 OS::MemMoveFunction CreateMemMoveFunction();
@@ skipping 28 matching lines @@
 
 #elif defined(V8_HOST_ARCH_MIPS)
 OS::MemCopyUint8Function OS::memcopy_uint8_function = &OS::MemCopyUint8Wrapper;
 // Defined in codegen-mips.cc.
 OS::MemCopyUint8Function CreateMemCopyUint8Function(
     OS::MemCopyUint8Function stub);
 #endif
 
 
 void OS::PostSetUp() {
-#if V8_TARGET_ARCH_IA32
+#if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87
   OS::MemMoveFunction generated_memmove = CreateMemMoveFunction();
   if (generated_memmove != NULL) {
     memmove_function = generated_memmove;
   }
 #elif defined(V8_HOST_ARCH_ARM)
   OS::memcopy_uint8_function =
       CreateMemCopyUint8Function(&OS::MemCopyUint8Wrapper);
   OS::memcopy_uint16_uint8_function =
       CreateMemCopyUint16Uint8Function(&OS::MemCopyUint16Uint8Wrapper);
 #elif defined(V8_HOST_ARCH_MIPS)
@@ skipping 246 matching lines @@
 
 void Thread::SetThreadLocal(LocalStorageKey key, void* value) {
   pthread_key_t pthread_key = LocalKeyToPthreadKey(key);
   int result = pthread_setspecific(pthread_key, value);
   ASSERT_EQ(0, result);
   USE(result);
 }
 
 
 } }  // namespace v8::internal