< prev index next >

src/cpu/ppc/vm/relocInfo_ppc.cpp

Print this page




  44   //   corresponding set-hi instructions.  The "o" arguments for the
  45   //   set-hi instructions are ignored, and must not affect the high-half
  46   //   immediate constant.  The "o" arguments for the set-lo instructions are
  47   //   added into the low-half immediate constant, and must not overflow it."
  48   //
  49   // Currently we don't support splitting of relocations, so o must be
  50   // zero:
  51   assert(o == 0, "tried to split relocations");
  52 
  53   if (!verify_only) {
  54     if (format() != 1) {
  55       nativeMovConstReg_at(addr())->set_data_plain(((intptr_t)x), code());
  56     } else {
  57       assert(type() == relocInfo::oop_type || type() == relocInfo::metadata_type,
  58              "how to encode else?");
  59       narrowOop no = (type() == relocInfo::oop_type) ?
  60         oopDesc::encode_heap_oop((oop)x) : Klass::encode_klass((Klass*)x);
  61       nativeMovConstReg_at(addr())->set_narrow_oop(no, code());
  62     }
  63   } else {
  64     assert((address) (nativeMovConstReg_at(addr())->data()) == x, "data must match");
  65   }
  66 }
  67 
  68 address Relocation::pd_call_destination(address orig_addr) {
  69   intptr_t adj = 0;
  70   address inst_loc = addr();
  71 
  72   if (orig_addr != NULL) {
  73     // We just moved this call instruction from orig_addr to addr().
  74     // This means its target will appear to have grown by addr() - orig_addr.
  75     adj = -(inst_loc - orig_addr);
  76   }
  77   if (NativeFarCall::is_far_call_at(inst_loc)) {
  78     NativeFarCall* call = nativeFarCall_at(inst_loc);
  79     return call->destination() + (intptr_t)(call->is_pcrelative() ? adj : 0);
  80   } else if (NativeJump::is_jump_at(inst_loc)) {
  81     NativeJump* jump = nativeJump_at(inst_loc);
  82     return jump->jump_destination() + (intptr_t)(jump->is_pcrelative() ? adj : 0);
  83   } else if (NativeConditionalFarBranch::is_conditional_far_branch_at(inst_loc)) {
  84     NativeConditionalFarBranch* branch = NativeConditionalFarBranch_at(inst_loc);




  44   //   corresponding set-hi instructions.  The "o" arguments for the
  45   //   set-hi instructions are ignored, and must not affect the high-half
  46   //   immediate constant.  The "o" arguments for the set-lo instructions are
  47   //   added into the low-half immediate constant, and must not overflow it."
  48   //
  49   // Currently we don't support splitting of relocations, so o must be
  50   // zero:
  51   assert(o == 0, "tried to split relocations");
  52 
  53   if (!verify_only) {
  54     if (format() != 1) {
  55       nativeMovConstReg_at(addr())->set_data_plain(((intptr_t)x), code());
  56     } else {
  57       assert(type() == relocInfo::oop_type || type() == relocInfo::metadata_type,
  58              "how to encode else?");
  59       narrowOop no = (type() == relocInfo::oop_type) ?
  60         oopDesc::encode_heap_oop((oop)x) : Klass::encode_klass((Klass*)x);
  61       nativeMovConstReg_at(addr())->set_narrow_oop(no, code());
  62     }
  63   } else {
  64     guarantee((address) (nativeMovConstReg_at(addr())->data()) == x, "data must match");
  65   }
  66 }
  67 
  68 address Relocation::pd_call_destination(address orig_addr) {
  69   intptr_t adj = 0;
  70   address inst_loc = addr();
  71 
  72   if (orig_addr != NULL) {
  73     // We just moved this call instruction from orig_addr to addr().
  74     // This means its target will appear to have grown by addr() - orig_addr.
  75     adj = -(inst_loc - orig_addr);
  76   }
  77   if (NativeFarCall::is_far_call_at(inst_loc)) {
  78     NativeFarCall* call = nativeFarCall_at(inst_loc);
  79     return call->destination() + (intptr_t)(call->is_pcrelative() ? adj : 0);
  80   } else if (NativeJump::is_jump_at(inst_loc)) {
  81     NativeJump* jump = nativeJump_at(inst_loc);
  82     return jump->jump_destination() + (intptr_t)(jump->is_pcrelative() ? adj : 0);
  83   } else if (NativeConditionalFarBranch::is_conditional_far_branch_at(inst_loc)) {
  84     NativeConditionalFarBranch* branch = NativeConditionalFarBranch_at(inst_loc);


< prev index next >