Upgrade V8 to 5.1.281.57 DO NOT MERGE
FPIIM-449
Change-Id: Id981b686b4d587ac31697662eb98bb34be42ad90
(cherry picked from commit 3b9bc31999c9787eb726ecdbfd5796bfdec32a18)
diff --git a/src/s390/frames-s390.h b/src/s390/frames-s390.h
new file mode 100644
index 0000000..cca060a
--- /dev/null
+++ b/src/s390/frames-s390.h
@@ -0,0 +1,189 @@
+// Copyright 2014 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.
+
+#ifndef V8_S390_FRAMES_S390_H_
+#define V8_S390_FRAMES_S390_H_
+
+namespace v8 {
+namespace internal {
+
+// Register list in load/store instructions
+// Note that the bit values must match those used in actual instruction encoding
+const int kNumRegs = 16;
+
+// Caller-saved/arguments registers
+const RegList kJSCallerSaved = 1 << 1 | 1 << 2 | // r2 a1
+ 1 << 3 | // r3 a2
+ 1 << 4 | // r4 a3
+ 1 << 5; // r5 a4
+
+const int kNumJSCallerSaved = 5;
+
+// Return the code of the n-th caller-saved register available to JavaScript
+// e.g. JSCallerSavedReg(0) returns r0.code() == 0
+int JSCallerSavedCode(int n);
+
+// Callee-saved registers preserved when switching from C to JavaScript
+const RegList kCalleeSaved =
+ 1 << 6 | // r6 (argument passing in CEntryStub)
+ // (HandleScope logic in MacroAssembler)
+ 1 << 7 | // r7 (argument passing in CEntryStub)
+ // (HandleScope logic in MacroAssembler)
+ 1 << 8 | // r8 (argument passing in CEntryStub)
+ // (HandleScope logic in MacroAssembler)
+ 1 << 9 | // r9 (HandleScope logic in MacroAssembler)
+ 1 << 10 | // r10 (Roots register in Javascript)
+ 1 << 11 | // r11 (fp in Javascript)
+ 1 << 12 | // r12 (ip in Javascript)
+ 1 << 13; // r13 (cp in Javascript)
+// 1 << 15; // r15 (sp in Javascript)
+
+const int kNumCalleeSaved = 8;
+
+#ifdef V8_TARGET_ARCH_S390X
+
+const RegList kCallerSavedDoubles = 1 << 0 | // d0
+ 1 << 1 | // d1
+ 1 << 2 | // d2
+ 1 << 3 | // d3
+ 1 << 4 | // d4
+ 1 << 5 | // d5
+ 1 << 6 | // d6
+ 1 << 7; // d7
+
+const int kNumCallerSavedDoubles = 8;
+
+const RegList kCalleeSavedDoubles = 1 << 8 | // d8
+ 1 << 9 | // d9
+ 1 << 10 | // d10
+ 1 << 11 | // d11
+ 1 << 12 | // d12
+ 1 << 13 | // d12
+ 1 << 14 | // d12
+ 1 << 15; // d13
+
+const int kNumCalleeSavedDoubles = 8;
+
+#else
+
+const RegList kCallerSavedDoubles = 1 << 14 | // d14
+ 1 << 15 | // d15
+ 1 << 0 | // d0
+ 1 << 1 | // d1
+ 1 << 2 | // d2
+ 1 << 3 | // d3
+ 1 << 5 | // d5
+ 1 << 7 | // d7
+ 1 << 8 | // d8
+ 1 << 9 | // d9
+ 1 << 10 | // d10
+ 1 << 11 | // d10
+ 1 << 12 | // d10
+ 1 << 13; // d11
+
+const int kNumCallerSavedDoubles = 14;
+
+const RegList kCalleeSavedDoubles = 1 << 4 | // d4
+ 1 << 6; // d6
+
+const int kNumCalleeSavedDoubles = 2;
+
+#endif
+
+// Number of registers for which space is reserved in safepoints. Must be a
+// multiple of 8.
+// TODO(regis): Only 8 registers may actually be sufficient. Revisit.
+const int kNumSafepointRegisters = 16;
+
+// Define the list of registers actually saved at safepoints.
+// Note that the number of saved registers may be smaller than the reserved
+// space, i.e. kNumSafepointSavedRegisters <= kNumSafepointRegisters.
+// const RegList kSafepointSavedRegisters = kJSCallerSaved | kCalleeSaved;
+// const int kNumSafepointSavedRegisters = kNumJSCallerSaved + kNumCalleeSaved;
+
+// The following constants describe the stack frame linkage area as
+// defined by the ABI.
+
+#if V8_TARGET_ARCH_S390X
+// [0] Back Chain
+// [1] Reserved for compiler use
+// [2] GPR 2
+// [3] GPR 3
+// ...
+// [15] GPR 15
+// [16] FPR 0
+// [17] FPR 2
+// [18] FPR 4
+// [19] FPR 6
+const int kNumRequiredStackFrameSlots = 20;
+const int kStackFrameRASlot = 14;
+const int kStackFrameSPSlot = 15;
+const int kStackFrameExtraParamSlot = 20;
+#else
+// [0] Back Chain
+// [1] Reserved for compiler use
+// [2] GPR 2
+// [3] GPR 3
+// ...
+// [15] GPR 15
+// [16..17] FPR 0
+// [18..19] FPR 2
+// [20..21] FPR 4
+// [22..23] FPR 6
+const int kNumRequiredStackFrameSlots = 24;
+const int kStackFrameRASlot = 14;
+const int kStackFrameSPSlot = 15;
+const int kStackFrameExtraParamSlot = 24;
+#endif
+
+// zLinux ABI requires caller frames to include sufficient space for
+// callee preserved register save area.
+#if V8_TARGET_ARCH_S390X
+const int kCalleeRegisterSaveAreaSize = 160;
+#elif V8_TARGET_ARCH_S390
+const int kCalleeRegisterSaveAreaSize = 96;
+#else
+const int kCalleeRegisterSaveAreaSize = 0;
+#endif
+
+// ----------------------------------------------------
+
+class EntryFrameConstants : public AllStatic {
+ public:
+ static const int kCallerFPOffset =
+ -(StandardFrameConstants::kFixedFrameSizeFromFp + kPointerSize);
+};
+
+class ExitFrameConstants : public TypedFrameConstants {
+ public:
+ static const int kSPOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(0);
+ static const int kCodeOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(1);
+ DEFINE_TYPED_FRAME_SIZES(2);
+
+ // The caller fields are below the frame pointer on the stack.
+ static const int kCallerFPOffset = 0 * kPointerSize;
+ // The calling JS function is below FP.
+ static const int kCallerPCOffset = 1 * kPointerSize;
+
+ // FP-relative displacement of the caller's SP. It points just
+ // below the saved PC.
+ static const int kCallerSPDisplacement = 2 * kPointerSize;
+};
+
+class JavaScriptFrameConstants : public AllStatic {
+ public:
+ // FP-relative.
+ static const int kLocal0Offset = StandardFrameConstants::kExpressionsOffset;
+ static const int kLastParameterOffset = +2 * kPointerSize;
+ static const int kFunctionOffset = StandardFrameConstants::kFunctionOffset;
+
+ // Caller SP-relative.
+ static const int kParam0Offset = -2 * kPointerSize;
+ static const int kReceiverOffset = -1 * kPointerSize;
+};
+
+} // namespace internal
+} // namespace v8
+
+#endif // V8_S390_FRAMES_S390_H_