jdk8-mips64-public/hotspot: src/cpu/mips/vm/relocInfo

src/cpu/mips/vm/relocInfo_mips.cpp@d885f8d65c58 (annotated)

src/cpu/mips/vm/relocInfo_mips.cpp

Tue, 26 Jul 2016 17:06:17 +0800

author: fujie
date: Tue, 26 Jul 2016 17:06:17 +0800
changeset 41: d885f8d65c58
parent 1: 2d8a650513c2
child 367: 826b64c07856
permissions: -rw-r--r--

Add multiply word to GPR instruction (mul) in MIPS assembler.

 /*
  * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2015, 2016, Loongson Technology. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #include "precompiled.hpp"
 #include "asm/macroAssembler.hpp"
 #include "code/relocInfo.hpp"
 #include "nativeInst_mips.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/safepoint.hpp"
 void Relocation::pd_set_data_value(address x, intptr_t o, bool verify_only) {
 #ifdef _LP64
   x += o;
   typedef Assembler::WhichOperand WhichOperand;
   WhichOperand which = (WhichOperand) format(); // that is, disp32 or imm, call32, narrow oop
   assert(which == Assembler::disp32_operand ||
          which == Assembler::narrow_oop_operand ||
          which == Assembler::imm_operand, "format unpacks ok");
   if (which == Assembler::imm_operand) {
     if (verify_only) {
       assert(nativeMovConstReg_at(addr())->data() == (long)x, "instructions must match");
     } else {
       nativeMovConstReg_at(addr())->set_data((intptr_t)(x));
     }
   } else if (which == Assembler::narrow_oop_operand) {
     // both compressed oops and compressed classes look the same
     if (Universe::heap()->is_in_reserved((oop)x)) {
       if (verify_only) {
         assert(nativeMovConstReg_at(addr())->data() == (long)oopDesc::encode_heap_oop((oop)x), "instructions must match");
       } else {
         nativeMovConstReg_at(addr())->set_data((intptr_t)(oopDesc::encode_heap_oop((oop)x)));
       }
     } else {
       if (verify_only) {
         assert(nativeMovConstReg_at(addr())->data() == (long)Klass::encode_klass((Klass*)x), "instructions must match");
       } else {
         nativeMovConstReg_at(addr())->set_data((intptr_t)(Klass::encode_klass((Klass*)x)));
       }
     }
   } else {
     // Note:  Use runtime_call_type relocations for call32_operand.
     assert(0, "call32_operand not supported in MIPS64");
   }
 #else
   if (verify_only) {
     assert(*pd_address_in_code() == (x + o), "instructions must match");
   } else {
     *pd_address_in_code() = x + o;
   }
 #endif // AMD64
 }
 //NOTICE HERE, this relocate is not need for MIPS, since MIPS USE abosolutly target,
 //Maybe We should FORGET CALL RELOCATION
 address Relocation::pd_call_destination(address orig_addr) {
   intptr_t adj = 0;
   NativeInstruction* ni = nativeInstruction_at(addr());
   if (ni->is_call()) {
     return nativeCall_at(addr())->destination() + adj;
   } else if (ni->is_jump()) {
     //return nativeJump_at(addr())->jump_destination() + adj;
 		return nativeGeneralJump_at(addr())->jump_destination() + adj;
   } else if (ni->is_cond_jump()) {
 		return nativeCondJump_at(addr())->jump_destination() +adj;
   } else {
     ShouldNotReachHere();
     return NULL;
   }
 }
 void Relocation::pd_set_call_destination(address x) {
   NativeInstruction* ni = nativeInstruction_at(addr());
   if (ni->is_call()) {
     nativeCall_at(addr())->set_destination(x);
   } else if (ni->is_jump())
     //NativeJump* nj = nativeJump_at(addr());
     nativeGeneralJump_at(addr())->set_jump_destination(x);
   else if (ni->is_cond_jump())
 		nativeCondJump_at(addr())->set_jump_destination(x);
   else
     { ShouldNotReachHere(); }
     // Unresolved jumps are recognized by a destination of -1
     // However 64bit can't actually produce such an address
     // and encodes a jump to self but jump_destination will
     // return a -1 as the signal. We must not relocate this
     // jmp or the ic code will not see it as unresolved.
 /*
     if (nj->jump_destination() == (address) -1) {
       x = addr(); // jump to self
     }
     nj->set_jump_destination(x);
   } else if (ni->is_cond_jump()) {
     // %%%% kludge this, for now, until we get a jump_destination method
     address old_dest = nativeGeneralJump_at(addr())->jump_destination();
     address disp = Assembler::locate_operand(addr(), Assembler::call32_operand);
     *(jint*)disp += (x - old_dest);
   } else if (ni->is_mov_literal64()) {
     ((NativeMovConstReg*)ni)->set_data((intptr_t)x);
   } else {
     ShouldNotReachHere();
   }
 */
 }
 address* Relocation::pd_address_in_code() {
 	//ShouldNotReachHere();
 	return (address*)addr();
 }
 address Relocation::pd_get_address_from_code() {
   tty->print_cr("%s: %d", __func__, __LINE__); //aoqi_test
 	NativeMovConstReg* ni = nativeMovConstReg_at(addr());
 	return (address)ni->data();
 }
 /*
 int Relocation::pd_breakpoint_size() {
   // minimum breakpoint size, in short words
   return NativeIllegalInstruction::instruction_size / sizeof(short);
 }
 void Relocation::pd_swap_in_breakpoint(address x, short* instrs, int instrlen) {
   Untested("pd_swap_in_breakpoint");
   if (instrs != NULL) {
     assert(instrlen * sizeof(short) == NativeIllegalInstruction::instruction_size, "enough instrlen in reloc. data");
     for (int i = 0; i < instrlen; i++) {
       instrs[i] = ((short*)x)[i];
     }
   }
   NativeIllegalInstruction::insert(x);
 }
 void Relocation::pd_swap_out_breakpoint(address x, short* instrs, int instrlen) {
   Untested("pd_swap_out_breakpoint");
   assert(NativeIllegalInstruction::instruction_size == sizeof(short), "right address unit for update");
   NativeInstruction* ni = nativeInstruction_at(x);
   *(short*)ni->addr_at(0) = instrs[0];
 }
 */
 void poll_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) {
 //	Unimplemented();
 }
 void poll_return_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) {
 //	Unimplemented();
 }
 void internal_pc_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) {
 	address target =0;
 	NativeMovConstReg* ni = nativeMovConstReg_at(addr());
 	target = new_addr_for((address)ni->data(), src, dest);
 	ni->set_data((intptr_t)target);
 }
 void metadata_Relocation::pd_fix_value(address x) {
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/cpu/mips/vm/relocInfo_mips.cpp@d885f8d65c58 (annotated)

src/cpu/mips/vm/relocInfo_mips.cpp