Contribution of PowerPC port.

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index 572bad96c8a3a4a7991295cde3fba720d37db68b..55f48334c198713501459893b1d790ffa20f2b00 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -101,6 +101,17 @@ namespace internal {
 #define CODE_STUB_LIST_ARM64(V)
 #endif
 
+// List of code stubs only used on PPC platforms.
+#ifdef V8_TARGET_ARCH_PPC
+#define CODE_STUB_LIST_PPC(V)  \
+  V(GetProperty)               \
+  V(SetProperty)               \
+  V(InvokeBuiltin)             \
+  V(DirectCEntry)
+#else
+#define CODE_STUB_LIST_PPC(V)
+#endif
+
 // List of code stubs only used on MIPS platforms.
 #if V8_TARGET_ARCH_MIPS
 #define CODE_STUB_LIST_MIPS(V)  \
@@ -123,6 +134,7 @@ namespace internal {
   CODE_STUB_LIST_ALL_PLATFORMS(V)    \
   CODE_STUB_LIST_ARM(V)              \
   CODE_STUB_LIST_ARM64(V)           \
+  CODE_STUB_LIST_PPC(V)              \
   CODE_STUB_LIST_MIPS(V)
 
 // Stub is base classes of all stubs.
@@ -507,6 +519,8 @@ class RuntimeCallHelper {
 #include "src/arm64/code-stubs-arm64.h"
 #elif V8_TARGET_ARCH_ARM
 #include "src/arm/code-stubs-arm.h"
+#elif V8_TARGET_ARCH_PPC
+#include "src/ppc/code-stubs-ppc.h"
 #elif V8_TARGET_ARCH_MIPS
 #include "src/mips/code-stubs-mips.h"
 #elif V8_TARGET_ARCH_MIPS64