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 fatal("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_DataSectionReference(int pc_offset, int data_offset) {
70 address pc = _instructions->start() + pc_offset;
71 NativeInstruction* inst = nativeInstruction_at(pc);
72 NativeInstruction* inst1 = nativeInstruction_at(pc + 4);
73 if(inst->is_sethi() && inst1->is_nop()) {
74 address const_start = _constants->start();
75 address dest = _constants->start() + data_offset;
76 if(_constants_size > 0) {
77 _instructions->relocate(pc + NativeMovConstReg::sethi_offset, internal_word_Relocation::spec((address) dest));
78 _instructions->relocate(pc + NativeMovConstReg::add_offset, internal_word_Relocation::spec((address) dest));
79 }
80 TRACE_jvmci_3("relocating at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset);
81 }else {
82 int const_size = align_size_up(_constants->end()-_constants->start(), CodeEntryAlignment);
83 NativeMovRegMem* load = nativeMovRegMem_at(pc);
84 // This offset must match with SPARCLoadConstantTableBaseOp.emitCode
85 load->set_offset(- (const_size - data_offset + Assembler::min_simm13()));
86 TRACE_jvmci_3("relocating ld at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset);
87 }
88 }
89
90 void CodeInstaller::pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst) {
91 fatal("CodeInstaller::pd_relocate_CodeBlob - sparc unimp");
92 }
93
94 void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination) {
95 address pc = (address) inst;
96 if (inst->is_call()) {
97 NativeCall* call = nativeCall_at(pc);
98 call->set_destination((address) foreign_call_destination);
99 _instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec());
100 } else if (inst->is_sethi()) {
101 NativeJump* jump = nativeJump_at(pc);
102 jump->set_jump_destination((address) foreign_call_destination);
103 _instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec());
104 } else {
105 fatal(err_msg("unknown call or jump instruction at " PTR_FORMAT, p2i(pc)));
106 }
107 TRACE_jvmci_3("relocating (foreign call) at " PTR_FORMAT, p2i(inst));
108 }
109
110 void CodeInstaller::pd_relocate_JavaMethod(oop hotspot_method, jint pc_offset) {
111 #ifdef ASSERT
112 Method* method = NULL;
113 // we need to check, this might also be an unresolved method
151 case POLL_NEAR:
152 fatal("unimplemented");
153 break;
154 case POLL_FAR:
155 _instructions->relocate(pc, relocInfo::poll_type);
156 break;
157 case POLL_RETURN_NEAR:
158 fatal("unimplemented");
159 break;
160 case POLL_RETURN_FAR:
161 _instructions->relocate(pc, relocInfo::poll_return_type);
162 break;
163 default:
164 fatal("invalid mark value");
165 break;
166 }
167 }
168
169 // convert JVMCI register indices (as used in oop maps) to HotSpot registers
170 VMReg CodeInstaller::get_hotspot_reg(jint jvmci_reg) {
171 if (jvmci_reg < RegisterImpl::number_of_registers) {
172 return as_Register(jvmci_reg)->as_VMReg();
173 } else {
174 jint floatRegisterNumber = jvmci_reg - RegisterImpl::number_of_registers;
175 floatRegisterNumber += MAX2(0, floatRegisterNumber-32); // Beginning with f32, only every second register is going to be addressed
176 if (floatRegisterNumber < FloatRegisterImpl::number_of_registers) {
177 return as_FloatRegister(floatRegisterNumber)->as_VMReg();
178 }
179 ShouldNotReachHere();
180 return NULL;
181 }
182 }
183
184 bool CodeInstaller::is_general_purpose_reg(VMReg hotspotRegister) {
185 return !hotspotRegister->is_FloatRegister();
186 }
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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 fatal("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) {
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(constant);
75 move->set_data((intptr_t)narrowOop);
76 TRACE_jvmci_3("relocating (narrow metaspace constant) at %p/%p", pc, narrowOop);
77 #else
78 fatal("compressed Klass* on 32bit");
79 #endif
80 } else {
81 NativeMovConstReg* move = nativeMovConstReg_at(pc);
82 Metadata* reference = record_metadata_reference(constant);
83 move->set_data((intptr_t)reference);
84 TRACE_jvmci_3("relocating (metaspace constant) at %p/%p", pc, reference);
85 }
86 }
87
88 void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset) {
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);
100 }else {
101 int const_size = align_size_up(_constants->end()-_constants->start(), CodeEntryAlignment);
102 NativeMovRegMem* load = nativeMovRegMem_at(pc);
103 // This offset must match with SPARCLoadConstantTableBaseOp.emitCode
104 load->set_offset(- (const_size - data_offset + Assembler::min_simm13()));
105 TRACE_jvmci_3("relocating ld at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset);
106 }
107 }
108
109 void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination) {
110 address pc = (address) inst;
111 if (inst->is_call()) {
112 NativeCall* call = nativeCall_at(pc);
113 call->set_destination((address) foreign_call_destination);
114 _instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec());
115 } else if (inst->is_sethi()) {
116 NativeJump* jump = nativeJump_at(pc);
117 jump->set_jump_destination((address) foreign_call_destination);
118 _instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec());
119 } else {
120 fatal(err_msg("unknown call or jump instruction at " PTR_FORMAT, p2i(pc)));
121 }
122 TRACE_jvmci_3("relocating (foreign call) at " PTR_FORMAT, p2i(inst));
123 }
124
125 void CodeInstaller::pd_relocate_JavaMethod(oop hotspot_method, jint pc_offset) {
126 #ifdef ASSERT
127 Method* method = NULL;
128 // we need to check, this might also be an unresolved method
166 case POLL_NEAR:
167 fatal("unimplemented");
168 break;
169 case POLL_FAR:
170 _instructions->relocate(pc, relocInfo::poll_type);
171 break;
172 case POLL_RETURN_NEAR:
173 fatal("unimplemented");
174 break;
175 case POLL_RETURN_FAR:
176 _instructions->relocate(pc, relocInfo::poll_return_type);
177 break;
178 default:
179 fatal("invalid mark value");
180 break;
181 }
182 }
183
184 // convert JVMCI register indices (as used in oop maps) to HotSpot registers
185 VMReg CodeInstaller::get_hotspot_reg(jint jvmci_reg) {
186 // JVMCI Registers are numbered as follows:
187 // 0..31: Thirty-two General Purpose registers (CPU Registers)
188 // 32..63: Thirty-two single precision float registers
189 // 64..95: Thirty-two double precision float registers
190 // 96..111: Sixteen quad precision float registers
191 if (jvmci_reg < 32) {
192 return as_Register(jvmci_reg)->as_VMReg();
193 } else {
194 jint floatRegisterNumber;
195 if(jvmci_reg < 64) { // Single precision
196 floatRegisterNumber = jvmci_reg - 32;
197 } else if(jvmci_reg < 96) {
198 floatRegisterNumber = 2 * (jvmci_reg - 64);
199 } else if(jvmci_reg < 112) {
200 floatRegisterNumber = 4 * (jvmci_reg - 96);
201 } else {
202 fatal("Unknown jvmci register");
203 }
204 return as_FloatRegister(floatRegisterNumber)->as_VMReg();
205 }
206 }
207
208 bool CodeInstaller::is_general_purpose_reg(VMReg hotspotRegister) {
209 return !hotspotRegister->is_FloatRegister();
210 }
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