duke@435: /*
trims@1907:  * Copyright (c) 1998, 2009, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: # include "incls/_precompiled.incl"
duke@435: # include "incls/_relocInfo_sparc.cpp.incl"
duke@435: 
duke@435: void Relocation::pd_set_data_value(address x, intptr_t o) {
duke@435:   NativeInstruction* ip = nativeInstruction_at(addr());
duke@435:   jint inst = ip->long_at(0);
duke@435:   assert(inst != NativeInstruction::illegal_instruction(), "no breakpoint");
duke@435:   switch (Assembler::inv_op(inst)) {
duke@435: 
duke@435:   case Assembler::ldst_op:
duke@435:     #ifdef ASSERT
duke@435:       switch (Assembler::inv_op3(inst)) {
duke@435:         case Assembler::lduw_op3:
duke@435:         case Assembler::ldub_op3:
duke@435:         case Assembler::lduh_op3:
duke@435:         case Assembler::ldd_op3:
duke@435:         case Assembler::ldsw_op3:
duke@435:         case Assembler::ldsb_op3:
duke@435:         case Assembler::ldsh_op3:
duke@435:         case Assembler::ldx_op3:
duke@435:         case Assembler::ldf_op3:
duke@435:         case Assembler::lddf_op3:
duke@435:         case Assembler::stw_op3:
duke@435:         case Assembler::stb_op3:
duke@435:         case Assembler::sth_op3:
duke@435:         case Assembler::std_op3:
duke@435:         case Assembler::stx_op3:
duke@435:         case Assembler::stf_op3:
duke@435:         case Assembler::stdf_op3:
duke@435:         case Assembler::casa_op3:
duke@435:         case Assembler::casxa_op3:
duke@435:           break;
duke@435:         default:
duke@435:           ShouldNotReachHere();
duke@435:       }
duke@435:       goto do_non_sethi;
duke@435:     #endif
duke@435: 
duke@435:   case Assembler::arith_op:
duke@435:     #ifdef ASSERT
duke@435:       switch (Assembler::inv_op3(inst)) {
duke@435:         case Assembler::or_op3:
duke@435:         case Assembler::add_op3:
duke@435:         case Assembler::jmpl_op3:
duke@435:           break;
duke@435:         default:
duke@435:           ShouldNotReachHere();
duke@435:       }
duke@435:     do_non_sethi:;
duke@435:     #endif
duke@435:     {
duke@435:     guarantee(Assembler::inv_immed(inst), "must have a simm13 field");
duke@435:     int simm13 = Assembler::low10((intptr_t)x) + o;
duke@435:     guarantee(Assembler::is_simm13(simm13), "offset can't overflow simm13");
duke@435:     inst &= ~Assembler::simm(    -1, 13);
duke@435:     inst |=  Assembler::simm(simm13, 13);
duke@435:     ip->set_long_at(0, inst);
duke@435:     }
duke@435:     break;
duke@435: 
duke@435:   case Assembler::branch_op:
duke@435:     {
duke@435: #ifdef _LP64
duke@435:     jint inst2;
duke@435:     guarantee(Assembler::inv_op2(inst)==Assembler::sethi_op2, "must be sethi");
kvn@599:     if (format() != 0) {
kvn@599:       assert(type() == relocInfo::oop_type, "only narrow oops case");
kvn@599:       jint np = oopDesc::encode_heap_oop((oop)x);
kvn@599:       inst &= ~Assembler::hi22(-1);
kvn@599:       inst |=  Assembler::hi22((intptr_t)np);
kvn@599:       ip->set_long_at(0, inst);
kvn@599:       inst2 = ip->long_at( NativeInstruction::nop_instruction_size );
kvn@599:       guarantee(Assembler::inv_op(inst2)==Assembler::arith_op, "arith op");
kvn@599:       ip->set_long_at(NativeInstruction::nop_instruction_size, ip->set_data32_simm13( inst2, (intptr_t)np));
kvn@599:       break;
kvn@599:     }
duke@435:     ip->set_data64_sethi( ip->addr_at(0), (intptr_t)x );
duke@435: #else
duke@435:     guarantee(Assembler::inv_op2(inst)==Assembler::sethi_op2, "must be sethi");
duke@435:     inst &= ~Assembler::hi22(     -1);
duke@435:     inst |=  Assembler::hi22((intptr_t)x);
duke@435:     // (ignore offset; it doesn't play into the sethi)
duke@435:     ip->set_long_at(0, inst);
duke@435: #endif
duke@435:     }
duke@435:     break;
duke@435: 
duke@435:   default:
duke@435:     guarantee(false, "instruction must perform arithmetic or memory access");
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
duke@435: address Relocation::pd_call_destination(address orig_addr) {
duke@435:   intptr_t adj = 0;
duke@435:   if (orig_addr != NULL) {
duke@435:     // We just moved this call instruction from orig_addr to addr().
duke@435:     // This means its target will appear to have grown by addr() - orig_addr.
duke@435:     adj = -( addr() - orig_addr );
duke@435:   }
duke@435:   if (NativeCall::is_call_at(addr())) {
duke@435:     NativeCall* call = nativeCall_at(addr());
duke@435:     return call->destination() + adj;
duke@435:   }
duke@435:   if (NativeFarCall::is_call_at(addr())) {
duke@435:     NativeFarCall* call = nativeFarCall_at(addr());
duke@435:     return call->destination() + adj;
duke@435:   }
duke@435:   // Special case:  Patchable branch local to the code cache.
duke@435:   // This will break badly if the code cache grows larger than a few Mb.
duke@435:   NativeGeneralJump* br = nativeGeneralJump_at(addr());
duke@435:   return br->jump_destination() + adj;
duke@435: }
duke@435: 
duke@435: 
duke@435: void Relocation::pd_set_call_destination(address x) {
duke@435:   if (NativeCall::is_call_at(addr())) {
duke@435:     NativeCall* call = nativeCall_at(addr());
duke@435:     call->set_destination(x);
duke@435:     return;
duke@435:   }
duke@435:   if (NativeFarCall::is_call_at(addr())) {
duke@435:     NativeFarCall* call = nativeFarCall_at(addr());
duke@435:     call->set_destination(x);
duke@435:     return;
duke@435:   }
duke@435:   // Special case:  Patchable branch local to the code cache.
duke@435:   // This will break badly if the code cache grows larger than a few Mb.
duke@435:   NativeGeneralJump* br = nativeGeneralJump_at(addr());
duke@435:   br->set_jump_destination(x);
duke@435: }
duke@435: 
duke@435: 
duke@435: address* Relocation::pd_address_in_code() {
duke@435:   // SPARC never embeds addresses in code, at present.
duke@435:   //assert(type() == relocInfo::oop_type, "only oops are inlined at present");
duke@435:   return (address*)addr();
duke@435: }
duke@435: 
duke@435: 
duke@435: address Relocation::pd_get_address_from_code() {
duke@435:   // SPARC never embeds addresses in code, at present.
duke@435:   //assert(type() == relocInfo::oop_type, "only oops are inlined at present");
duke@435:   return *(address*)addr();
duke@435: }
duke@435: 
duke@435: 
duke@435: int Relocation::pd_breakpoint_size() {
duke@435:   // minimum breakpoint size, in short words
duke@435:   return NativeIllegalInstruction::instruction_size / sizeof(short);
duke@435: }
duke@435: 
duke@435: void Relocation::pd_swap_in_breakpoint(address x, short* instrs, int instrlen) {
duke@435:   Untested("pd_swap_in_breakpoint");
duke@435:   // %%% probably do not need a general instrlen; just use the trap size
duke@435:   if (instrs != NULL) {
duke@435:     assert(instrlen * sizeof(short) == NativeIllegalInstruction::instruction_size, "enough instrlen in reloc. data");
duke@435:     for (int i = 0; i < instrlen; i++) {
duke@435:       instrs[i] = ((short*)x)[i];
duke@435:     }
duke@435:   }
duke@435:   NativeIllegalInstruction::insert(x);
duke@435: }
duke@435: 
duke@435: 
duke@435: void Relocation::pd_swap_out_breakpoint(address x, short* instrs, int instrlen) {
duke@435:   Untested("pd_swap_out_breakpoint");
duke@435:   assert(instrlen * sizeof(short) == sizeof(int), "enough buf");
duke@435:   union { int l; short s[1]; } u;
duke@435:   for (int i = 0; i < instrlen; i++) {
duke@435:     u.s[i] = instrs[i];
duke@435:   }
duke@435:   NativeInstruction* ni = nativeInstruction_at(x);
duke@435:   ni->set_long_at(0, u.l);
duke@435: }
never@739: 
never@739: void poll_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) {
never@739: }
never@739: 
never@739: void poll_return_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) {
never@739: }