Fix issue 493: Infinite loop when debug break is set when entering function.apply

src/arm/regexp-macro-assembler-arm.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 570 matching lines @@
   RegList argument_registers = r0.bit() | r1.bit() | r2.bit() | r3.bit();
   __ stm(db_w, sp, argument_registers | registers_to_retain | lr.bit());
   // Set frame pointer just above the arguments.
   __ add(frame_pointer(), sp, Operand(4 * kPointerSize));
   __ push(r0);  // Make room for "position - 1" constant (value is irrelevant).
 
   // Check if we have space on the stack for registers.
   Label stack_limit_hit;
   Label stack_ok;
 
-  ExternalReference stack_guard_limit =
-      ExternalReference::address_of_stack_guard_limit();
-  __ mov(r0, Operand(stack_guard_limit));
+  ExternalReference stack_limit =
+      ExternalReference::address_of_stack_limit();
+  __ mov(r0, Operand(stack_limit));
   __ ldr(r0, MemOperand(r0));
   __ sub(r0, sp, r0, SetCC);
   // Handle it if the stack pointer is already below the stack limit.
   __ b(ls, &stack_limit_hit);
   // Check if there is room for the variable number of registers above
   // the stack limit.
   __ cmp(r0, Operand(num_registers_ * kPointerSize));
   __ b(hs, &stack_ok);
   // Exit with OutOfMemory exception. There is not enough space on the stack
   // for our working registers.
@@ skipping 479 matching lines @@
 
 void RegExpMacroAssemblerARM::Pop(Register target) {
   ASSERT(!target.is(backtrack_stackpointer()));
   __ ldr(target,
          MemOperand(backtrack_stackpointer(), kPointerSize, PostIndex));
 }
 
 
 void RegExpMacroAssemblerARM::CheckPreemption() {
   // Check for preemption.
-  ExternalReference stack_guard_limit =
-      ExternalReference::address_of_stack_guard_limit();
-  __ mov(r0, Operand(stack_guard_limit));
+  ExternalReference stack_limit =
+      ExternalReference::address_of_stack_limit();
+  __ mov(r0, Operand(stack_limit));
   __ ldr(r0, MemOperand(r0));
   __ cmp(sp, r0);
   SafeCall(&check_preempt_label_, ls);
 }
 
 
 void RegExpMacroAssemblerARM::CheckStackLimit() {
   ExternalReference stack_limit =
       ExternalReference::address_of_regexp_stack_limit();
   __ mov(r0, Operand(stack_limit));
@@ skipping 114 matching lines @@
   __ mov(r0, sp);
   __ Call(r5);
   __ ldr(pc, MemOperand(sp, stack_alignment, PostIndex));
 }
 
 #undef __
 
 #endif  // V8_NATIVE_REGEXP
 
 }}  // namespace v8::internal