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src/cpu/sparc/vm/jvmciCodeInstaller_sparc.cpp

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  30 #include "vmreg_sparc.inline.hpp"
  31 
  32 jint CodeInstaller::pd_next_offset(NativeInstruction* inst, jint pc_offset, Handle method, TRAPS) {
  33   if (inst->is_call() || inst->is_jump()) {
  34     return pc_offset + NativeCall::instruction_size;
  35   } else if (inst->is_call_reg()) {
  36     return pc_offset + NativeCallReg::instruction_size;
  37   } else if (inst->is_sethi()) {
  38     return pc_offset + NativeFarCall::instruction_size;
  39   } else {
  40     JVMCI_ERROR_0("unsupported type of instruction for call site");
  41     return 0;
  42   }
  43 }
  44 
  45 void CodeInstaller::pd_patch_OopConstant(int pc_offset, Handle constant, TRAPS) {
  46   address pc = _instructions->start() + pc_offset;
  47   Handle obj(THREAD, HotSpotObjectConstantImpl::object(constant));
  48   jobject value = JNIHandles::make_local(obj());
  49   if (HotSpotObjectConstantImpl::compressed(constant)) {
  50 #ifdef _LP64
  51     int oop_index = _oop_recorder->find_index(value);
  52     RelocationHolder rspec = oop_Relocation::spec(oop_index);
  53     _instructions->relocate(pc, rspec, 1);
  54 #else
  55     JVMCI_ERROR("compressed oop on 32bit");
  56 #endif
  57   } else {
  58     NativeMovConstReg* move = nativeMovConstReg_at(pc);
  59     move->set_data((intptr_t) value);
  60 
  61     // We need two relocations:  one on the sethi and one on the add.
  62     int oop_index = _oop_recorder->find_index(value);
  63     RelocationHolder rspec = oop_Relocation::spec(oop_index);
  64     _instructions->relocate(pc + NativeMovConstReg::sethi_offset, rspec);
  65     _instructions->relocate(pc + NativeMovConstReg::add_offset, rspec);
  66   }
  67 }
  68 
  69 void CodeInstaller::pd_patch_MetaspaceConstant(int pc_offset, Handle constant, TRAPS) {
  70   address pc = _instructions->start() + pc_offset;
  71   if (HotSpotMetaspaceConstantImpl::compressed(constant)) {
  72 #ifdef _LP64
  73     NativeMovConstReg32* move = nativeMovConstReg32_at(pc);
  74     narrowKlass narrowOop = record_narrow_metadata_reference(_instructions, pc, constant, CHECK);
  75     move->set_data((intptr_t)narrowOop);
  76     TRACE_jvmci_3("relocating (narrow metaspace constant) at " PTR_FORMAT "/0x%x", p2i(pc), narrowOop);
  77 #else
  78     JVMCI_ERROR("compressed Klass* on 32bit");
  79 #endif
  80   } else {
  81     NativeMovConstReg* move = nativeMovConstReg_at(pc);
  82     void* reference = record_metadata_reference(_instructions, pc, constant, CHECK);
  83     move->set_data((intptr_t)reference);
  84     TRACE_jvmci_3("relocating (metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(reference));
  85   }
  86 }
  87 
  88 void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset, TRAPS) {
  89   address pc = _instructions->start() + pc_offset;
  90   NativeInstruction* inst = nativeInstruction_at(pc);
  91   NativeInstruction* inst1 = nativeInstruction_at(pc + 4);
  92   if(inst->is_sethi() && inst1->is_nop()) {
  93       address const_start = _constants->start();
  94       address dest = _constants->start() + data_offset;
  95       if(_constants_size > 0) {
  96         _instructions->relocate(pc + NativeMovConstReg::sethi_offset, internal_word_Relocation::spec((address) dest));
  97         _instructions->relocate(pc + NativeMovConstReg::add_offset, internal_word_Relocation::spec((address) dest));
  98       }
  99       TRACE_jvmci_3("relocating at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset);




  30 #include "vmreg_sparc.inline.hpp"
  31 
  32 jint CodeInstaller::pd_next_offset(NativeInstruction* inst, jint pc_offset, Handle method, TRAPS) {
  33   if (inst->is_call() || inst->is_jump()) {
  34     return pc_offset + NativeCall::instruction_size;
  35   } else if (inst->is_call_reg()) {
  36     return pc_offset + NativeCallReg::instruction_size;
  37   } else if (inst->is_sethi()) {
  38     return pc_offset + NativeFarCall::instruction_size;
  39   } else {
  40     JVMCI_ERROR_0("unsupported type of instruction for call site");
  41     return 0;
  42   }
  43 }
  44 
  45 void CodeInstaller::pd_patch_OopConstant(int pc_offset, Handle constant, TRAPS) {
  46   address pc = _instructions->start() + pc_offset;
  47   Handle obj(THREAD, HotSpotObjectConstantImpl::object(constant));
  48   jobject value = JNIHandles::make_local(obj());
  49   if (HotSpotObjectConstantImpl::compressed(constant)) {

  50     int oop_index = _oop_recorder->find_index(value);
  51     RelocationHolder rspec = oop_Relocation::spec(oop_index);
  52     _instructions->relocate(pc, rspec, 1);



  53   } else {
  54     NativeMovConstReg* move = nativeMovConstReg_at(pc);
  55     move->set_data((intptr_t) value);
  56 
  57     // We need two relocations:  one on the sethi and one on the add.
  58     int oop_index = _oop_recorder->find_index(value);
  59     RelocationHolder rspec = oop_Relocation::spec(oop_index);
  60     _instructions->relocate(pc + NativeMovConstReg::sethi_offset, rspec);
  61     _instructions->relocate(pc + NativeMovConstReg::add_offset, rspec);
  62   }
  63 }
  64 
  65 void CodeInstaller::pd_patch_MetaspaceConstant(int pc_offset, Handle constant, TRAPS) {
  66   address pc = _instructions->start() + pc_offset;
  67   if (HotSpotMetaspaceConstantImpl::compressed(constant)) {

  68     NativeMovConstReg32* move = nativeMovConstReg32_at(pc);
  69     narrowKlass narrowOop = record_narrow_metadata_reference(_instructions, pc, constant, CHECK);
  70     move->set_data((intptr_t)narrowOop);
  71     TRACE_jvmci_3("relocating (narrow metaspace constant) at " PTR_FORMAT "/0x%x", p2i(pc), narrowOop);



  72   } else {
  73     NativeMovConstReg* move = nativeMovConstReg_at(pc);
  74     void* reference = record_metadata_reference(_instructions, pc, constant, CHECK);
  75     move->set_data((intptr_t)reference);
  76     TRACE_jvmci_3("relocating (metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(reference));
  77   }
  78 }
  79 
  80 void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset, TRAPS) {
  81   address pc = _instructions->start() + pc_offset;
  82   NativeInstruction* inst = nativeInstruction_at(pc);
  83   NativeInstruction* inst1 = nativeInstruction_at(pc + 4);
  84   if(inst->is_sethi() && inst1->is_nop()) {
  85       address const_start = _constants->start();
  86       address dest = _constants->start() + data_offset;
  87       if(_constants_size > 0) {
  88         _instructions->relocate(pc + NativeMovConstReg::sethi_offset, internal_word_Relocation::spec((address) dest));
  89         _instructions->relocate(pc + NativeMovConstReg::add_offset, internal_word_Relocation::spec((address) dest));
  90       }
  91       TRACE_jvmci_3("relocating at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset);


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