src/cpu/x86/vm/x86_64.ad

rev 6114 : 8037821: Account for trampoline stubs when estimating code buffer sizes
Summary: Correct calculation of stubs section size when trampoline stubs are used.
Contributed-by: Lutz.Schmidt@sap.com

@@ -1440,67 +1440,10 @@
                               // the hard way
 }
 
 
 //=============================================================================
-uint size_exception_handler()
-{
-  // NativeCall instruction size is the same as NativeJump.
-  // Note that this value is also credited (in output.cpp) to
-  // the size of the code section.
-  return NativeJump::instruction_size;
-}
-
-// Emit exception handler code.
-int emit_exception_handler(CodeBuffer& cbuf)
-{
-
-  // Note that the code buffer's insts_mark is always relative to insts.
-  // That's why we must use the macroassembler to generate a handler.
-  MacroAssembler _masm(&cbuf);
-  address base =
-  __ start_a_stub(size_exception_handler());
-  if (base == NULL)  return 0;  // CodeBuffer::expand failed
-  int offset = __ offset();
-  __ jump(RuntimeAddress(OptoRuntime::exception_blob()->entry_point()));
-  assert(__ offset() - offset <= (int) size_exception_handler(), "overflow");
-  __ end_a_stub();
-  return offset;
-}
-
-uint size_deopt_handler()
-{
-  // three 5 byte instructions
-  return 15;
-}
-
-// Emit deopt handler code.
-int emit_deopt_handler(CodeBuffer& cbuf)
-{
-
-  // Note that the code buffer's insts_mark is always relative to insts.
-  // That's why we must use the macroassembler to generate a handler.
-  MacroAssembler _masm(&cbuf);
-  address base =
-  __ start_a_stub(size_deopt_handler());
-  if (base == NULL)  return 0;  // CodeBuffer::expand failed
-  int offset = __ offset();
-  address the_pc = (address) __ pc();
-  Label next;
-  // push a "the_pc" on the stack without destroying any registers
-  // as they all may be live.
-
-  // push address of "next"
-  __ call(next, relocInfo::none); // reloc none is fine since it is a disp32
-  __ bind(next);
-  // adjust it so it matches "the_pc"
-  __ subptr(Address(rsp, 0), __ offset() - offset);
-  __ jump(RuntimeAddress(SharedRuntime::deopt_blob()->unpack()));
-  assert(__ offset() - offset <= (int) size_deopt_handler(), "overflow");
-  __ end_a_stub();
-  return offset;
-}
 
 int Matcher::regnum_to_fpu_offset(int regnum)
 {
   return regnum - 32; // The FP registers are in the second chunk
 }