[builtins] New frame type for exits to C++ builtins

src/arm/macro-assembler-arm.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 <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
@@ skipping 1269 matching lines @@
     frame_ends = pc_offset();
     ldm(ia_w, sp, pp.bit() | fp.bit() | lr.bit());
   } else {
     mov(sp, fp);
     frame_ends = pc_offset();
     ldm(ia_w, sp, fp.bit() | lr.bit());
   }
   return frame_ends;
 }
 
+void MacroAssembler::EnterExitFrame(bool save_doubles, int stack_space,
+                                    StackFrame::Type frame_type) {
+  DCHECK(frame_type == StackFrame::EXIT ||
+         frame_type == StackFrame::BUILTIN_EXIT);
 
-void MacroAssembler::EnterExitFrame(bool save_doubles, int stack_space) {
   // Set up the frame structure on the stack.
   DCHECK_EQ(2 * kPointerSize, ExitFrameConstants::kCallerSPDisplacement);
   DCHECK_EQ(1 * kPointerSize, ExitFrameConstants::kCallerPCOffset);
   DCHECK_EQ(0 * kPointerSize, ExitFrameConstants::kCallerFPOffset);
-  mov(ip, Operand(Smi::FromInt(StackFrame::EXIT)));
+  mov(ip, Operand(Smi::FromInt(frame_type)));
   PushCommonFrame(ip);
   // Reserve room for saved entry sp and code object.
   sub(sp, fp, Operand(ExitFrameConstants::kFixedFrameSizeFromFp));
   if (emit_debug_code()) {
     mov(ip, Operand::Zero());
     str(ip, MemOperand(fp, ExitFrameConstants::kSPOffset));
   }
   if (FLAG_enable_embedded_constant_pool) {
     str(pp, MemOperand(fp, ExitFrameConstants::kConstantPoolOffset));
   }
@@ skipping 1539 matching lines @@
   if (function->nargs >= 0) {
     // TODO(1236192): Most runtime routines don't need the number of
     // arguments passed in because it is constant. At some point we
     // should remove this need and make the runtime routine entry code
     // smarter.
     mov(r0, Operand(function->nargs));
   }
   JumpToExternalReference(ExternalReference(fid, isolate()));
 }
 
-
-void MacroAssembler::JumpToExternalReference(const ExternalReference& builtin) {
+void MacroAssembler::JumpToExternalReference(const ExternalReference& builtin,
+                                             bool builtin_exit_frame) {
 #if defined(__thumb__)
   // Thumb mode builtin.
   DCHECK((reinterpret_cast<intptr_t>(builtin.address()) & 1) == 1);
 #endif
   mov(r1, Operand(builtin));
-  CEntryStub stub(isolate(), 1);
+  CEntryStub stub(isolate(), 1, kDontSaveFPRegs, kArgvOnStack,
+                  builtin_exit_frame);
   Jump(stub.GetCode(), RelocInfo::CODE_TARGET);
 }
 
-
 void MacroAssembler::SetCounter(StatsCounter* counter, int value,
                                 Register scratch1, Register scratch2) {
   if (FLAG_native_code_counters && counter->Enabled()) {
     mov(scratch1, Operand(value));
     mov(scratch2, Operand(ExternalReference(counter)));
     str(scratch1, MemOperand(scratch2));
   }
 }
 
 
@@ skipping 1146 matching lines @@
     }
   }
   if (mag.shift > 0) mov(result, Operand(result, ASR, mag.shift));
   add(result, result, Operand(dividend, LSR, 31));
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM