Chromium Code Reviews Chromium Code Reviews
Issue 18014003:
Add X32 port into V8 (Closed)
Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/| Index: src/globals.h |
| =================================================================== |
| --- src/globals.h (revision 15486) |
| +++ src/globals.h (working copy) |
| @@ -79,7 +79,11 @@ |
| #define V8_HOST_CAN_READ_UNALIGNED 1 |
| #else |
| #define V8_HOST_ARCH_X64 1 |
| +#if defined(__x86_64__) && !defined(__LP64__) |
| +#define V8_HOST_ARCH_32_BIT 1 |
| +#else |
| #define V8_HOST_ARCH_64_BIT 1 |
| +#endif // defined(__x86_64__) && !defined(__LP64__) |
| #define V8_HOST_CAN_READ_UNALIGNED 1 |
| #endif // __native_client__ |
| #elif defined(_M_IX86) || defined(__i386__) |
| @@ -105,8 +109,8 @@ |
| // Target architecture detection. This may be set externally. If not, detect |
| // in the same way as the host architecture, that is, target the native |
| // environment as presented by the compiler. |
| -#if !V8_TARGET_ARCH_X64 && !V8_TARGET_ARCH_IA32 && \ |
| - !V8_TARGET_ARCH_ARM && !V8_TARGET_ARCH_MIPS |
| +#if !V8_TARGET_ARCH_X64 && !V8_TARGET_ARCH_IA32 && !V8_TARGET_ARCH_ARM && \ |
| + !V8_TARGET_ARCH_MIPS && !V8_TARGET_ARCH_X32 |
| #if defined(_M_X64) || defined(__x86_64__) |
| #define V8_TARGET_ARCH_X64 1 |
| #elif defined(_M_IX86) || defined(__i386__) |
| @@ -127,6 +131,9 @@ |
| #if V8_TARGET_ARCH_X64 && !V8_HOST_ARCH_X64 |
| #error Target architecture x64 is only supported on x64 host |
| #endif |
| +#if (V8_TARGET_ARCH_X32 && !V8_HOST_ARCH_X64 && !V8_HOST_ARCH_32_BIT) |
| +#error Target architecture x32 is only supported on x64 host with x32 support |
| +#endif |
| #if (V8_TARGET_ARCH_ARM && !(V8_HOST_ARCH_IA32 || V8_HOST_ARCH_ARM)) |
| #error Target architecture arm is only supported on arm and ia32 host |
| #endif |
| @@ -151,6 +158,8 @@ |
| #define V8_TARGET_LITTLE_ENDIAN 1 |
| #elif V8_TARGET_ARCH_X64 |
| #define V8_TARGET_LITTLE_ENDIAN 1 |
| +#elif V8_TARGET_ARCH_X32 |
| +#define V8_TARGET_LITTLE_ENDIAN 1 |
| #elif V8_TARGET_ARCH_ARM |
| #define V8_TARGET_LITTLE_ENDIAN 1 |
| #elif V8_TARGET_ARCH_MIPS |
| @@ -200,6 +209,10 @@ |
| #define V8_PTR_PREFIX "l" |
| #endif |
| #else // V8_HOST_ARCH_64_BIT |
| +#if V8_TARGET_ARCH_X32 |
| +#define V8_UINT64_C(x) (x ## ULL) |
| +#define V8_INT64_C(x) (x ## LL) |
| +#endif |
| #define V8_INTPTR_C(x) (x) |
| #define V8_PTR_PREFIX "" |
| #endif // V8_HOST_ARCH_64_BIT |
| @@ -241,13 +254,16 @@ |
| const int kDoubleSize = sizeof(double); // NOLINT |
| const int kIntptrSize = sizeof(intptr_t); // NOLINT |
| const int kPointerSize = sizeof(void*); // NOLINT |
| +#if V8_TARGET_ARCH_X32 |
| +const int kHWRegSize = kPointerSize + kPointerSize; |
|
danno
2013/07/17 13:33:21
You should define the following for all platforms
|
| +#endif |
| const int kDoubleSizeLog2 = 3; |
| // Size of the state of a the random number generator. |
| const int kRandomStateSize = 2 * kIntSize; |
| -#if V8_HOST_ARCH_64_BIT |
| +#if V8_HOST_ARCH_64_BIT && !V8_TARGET_ARCH_X32 |
| const int kPointerSizeLog2 = 3; |
| const intptr_t kIntptrSignBit = V8_INT64_C(0x8000000000000000); |
| const uintptr_t kUintptrAllBitsSet = V8_UINT64_C(0xFFFFFFFFFFFFFFFF); |
