68 address pc = _instructions->start() + pc_offset;
69 Handle obj = HotSpotObjectConstantImpl::object(constant);
70 jobject value = JNIHandles::make_local(obj());
71 if (HotSpotObjectConstantImpl::compressed(constant)) {
72 #ifdef _LP64
73 address operand = Assembler::locate_operand(pc, Assembler::narrow_oop_operand);
74 int oop_index = _oop_recorder->find_index(value);
75 _instructions->relocate(pc, oop_Relocation::spec(oop_index), Assembler::narrow_oop_operand);
76 TRACE_jvmci_3("relocating (narrow oop constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
77 #else
78 fatal("compressed oop on 32bit");
79 #endif
80 } else {
81 address operand = Assembler::locate_operand(pc, Assembler::imm_operand);
82 *((jobject*) operand) = value;
83 _instructions->relocate(pc, oop_Relocation::spec_for_immediate(), Assembler::imm_operand);
84 TRACE_jvmci_3("relocating (oop constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
85 }
86 }
87
88 void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset) {
89 address pc = _instructions->start() + pc_offset;
90
91 address operand = Assembler::locate_operand(pc, Assembler::disp32_operand);
92 address next_instruction = Assembler::locate_next_instruction(pc);
93 address dest = _constants->start() + data_offset;
94
95 long disp = dest - next_instruction;
96 assert(disp == (jint) disp, "disp doesn't fit in 32 bits");
97 *((jint*) operand) = (jint) disp;
98
99 _instructions->relocate(pc, section_word_Relocation::spec((address) dest, CodeBuffer::SECT_CONSTS), Assembler::disp32_operand);
100 TRACE_jvmci_3("relocating at " PTR_FORMAT "/" PTR_FORMAT " with destination at " PTR_FORMAT " (%d)", p2i(pc), p2i(operand), p2i(dest), data_offset);
101 }
102
103 void CodeInstaller::pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst) {
104 if (cb->is_nmethod()) {
105 nmethod* nm = (nmethod*) cb;
106 nativeJump_at((address)inst)->set_jump_destination(nm->verified_entry_point());
107 } else {
108 nativeJump_at((address)inst)->set_jump_destination(cb->code_begin());
109 }
110 _instructions->relocate((address)inst, runtime_call_Relocation::spec(), Assembler::call32_operand);
111 }
112
113 void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination) {
114 address pc = (address) inst;
115 if (inst->is_call()) {
116 // NOTE: for call without a mov, the offset must fit a 32-bit immediate
117 // see also CompilerToVM.getMaxCallTargetOffset()
118 NativeCall* call = nativeCall_at(pc);
119 call->set_destination((address) foreign_call_destination);
120 _instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand);
121 } else if (inst->is_mov_literal64()) {
122 NativeMovConstReg* mov = nativeMovConstReg_at(pc);
123 mov->set_data((intptr_t) foreign_call_destination);
124 _instructions->relocate(mov->instruction_address(), runtime_call_Relocation::spec(), Assembler::imm_operand);
125 } else if (inst->is_jump()) {
126 NativeJump* jump = nativeJump_at(pc);
127 jump->set_jump_destination((address) foreign_call_destination);
128 _instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand);
129 } else if (inst->is_cond_jump()) {
130 address old_dest = nativeGeneralJump_at(pc)->jump_destination();
131 address disp = Assembler::locate_operand(pc, Assembler::call32_operand);
132 *(jint*) disp += ((address) foreign_call_destination) - old_dest;
|
68 address pc = _instructions->start() + pc_offset;
69 Handle obj = HotSpotObjectConstantImpl::object(constant);
70 jobject value = JNIHandles::make_local(obj());
71 if (HotSpotObjectConstantImpl::compressed(constant)) {
72 #ifdef _LP64
73 address operand = Assembler::locate_operand(pc, Assembler::narrow_oop_operand);
74 int oop_index = _oop_recorder->find_index(value);
75 _instructions->relocate(pc, oop_Relocation::spec(oop_index), Assembler::narrow_oop_operand);
76 TRACE_jvmci_3("relocating (narrow oop constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
77 #else
78 fatal("compressed oop on 32bit");
79 #endif
80 } else {
81 address operand = Assembler::locate_operand(pc, Assembler::imm_operand);
82 *((jobject*) operand) = value;
83 _instructions->relocate(pc, oop_Relocation::spec_for_immediate(), Assembler::imm_operand);
84 TRACE_jvmci_3("relocating (oop constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
85 }
86 }
87
88 void CodeInstaller::pd_patch_MetaspaceConstant(int pc_offset, Handle& constant) {
89 address pc = _instructions->start() + pc_offset;
90 if (HotSpotMetaspaceConstantImpl::compressed(constant)) {
91 #ifdef _LP64
92 address operand = Assembler::locate_operand(pc, Assembler::narrow_oop_operand);
93 *((narrowKlass*) operand) = record_narrow_metadata_reference(constant);
94 TRACE_jvmci_3("relocating (narrow metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
95 #else
96 fatal("compressed Klass* on 32bit");
97 #endif
98 } else {
99 address operand = Assembler::locate_operand(pc, Assembler::imm_operand);
100 *((Metadata**) operand) = record_metadata_reference(constant);
101 TRACE_jvmci_3("relocating (metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
102 }
103 }
104
105 void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset) {
106 address pc = _instructions->start() + pc_offset;
107
108 address operand = Assembler::locate_operand(pc, Assembler::disp32_operand);
109 address next_instruction = Assembler::locate_next_instruction(pc);
110 address dest = _constants->start() + data_offset;
111
112 long disp = dest - next_instruction;
113 assert(disp == (jint) disp, "disp doesn't fit in 32 bits");
114 *((jint*) operand) = (jint) disp;
115
116 _instructions->relocate(pc, section_word_Relocation::spec((address) dest, CodeBuffer::SECT_CONSTS), Assembler::disp32_operand);
117 TRACE_jvmci_3("relocating at " PTR_FORMAT "/" PTR_FORMAT " with destination at " PTR_FORMAT " (%d)", p2i(pc), p2i(operand), p2i(dest), data_offset);
118 }
119
120 void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination) {
121 address pc = (address) inst;
122 if (inst->is_call()) {
123 // NOTE: for call without a mov, the offset must fit a 32-bit immediate
124 // see also CompilerToVM.getMaxCallTargetOffset()
125 NativeCall* call = nativeCall_at(pc);
126 call->set_destination((address) foreign_call_destination);
127 _instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand);
128 } else if (inst->is_mov_literal64()) {
129 NativeMovConstReg* mov = nativeMovConstReg_at(pc);
130 mov->set_data((intptr_t) foreign_call_destination);
131 _instructions->relocate(mov->instruction_address(), runtime_call_Relocation::spec(), Assembler::imm_operand);
132 } else if (inst->is_jump()) {
133 NativeJump* jump = nativeJump_at(pc);
134 jump->set_jump_destination((address) foreign_call_destination);
135 _instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec(), Assembler::call32_operand);
136 } else if (inst->is_cond_jump()) {
137 address old_dest = nativeGeneralJump_at(pc)->jump_destination();
138 address disp = Assembler::locate_operand(pc, Assembler::call32_operand);
139 *(jint*) disp += ((address) foreign_call_destination) - old_dest;
|