13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "jvmci/jvmciCodeInstaller.hpp"
25 #include "jvmci/jvmciRuntime.hpp"
26 #include "jvmci/jvmciCompilerToVM.hpp"
27 #include "jvmci/jvmciJavaClasses.hpp"
28 #include "oops/oop.inline.hpp"
29 #include "runtime/sharedRuntime.hpp"
30 #include "vmreg_aarch64.inline.hpp"
31
32 jint CodeInstaller::pd_next_offset(NativeInstruction* inst, jint pc_offset, Handle method, TRAPS) {
33 Unimplemented();
34 return 0;
35 }
36
37 void CodeInstaller::pd_patch_OopConstant(int pc_offset, Handle constant, TRAPS) {
38 Unimplemented();
39 }
40
41 void CodeInstaller::pd_patch_MetaspaceConstant(int pc_offset, Handle constant, TRAPS) {
42 Unimplemented();
43 }
44
45 void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset) {
46 Unimplemented();
47 }
48
49 void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination, TRAPS) {
50 Unimplemented();
51 }
52
53 void CodeInstaller::pd_relocate_JavaMethod(Handle hotspot_method, jint pc_offset, TRAPS) {
54 Unimplemented();
55 }
56
57 void CodeInstaller::pd_relocate_poll(address pc, jint mark, TRAPS) {
58 Unimplemented();
59 }
60
61 // convert JVMCI register indices (as used in oop maps) to HotSpot registers
62 VMReg CodeInstaller::get_hotspot_reg(jint jvmci_reg, TRAPS) {
63 return NULL;
64 }
65
66 bool CodeInstaller::is_general_purpose_reg(VMReg hotspotRegister) {
67 return false;
68 }
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13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "jvmci/jvmciCodeInstaller.hpp"
25 #include "jvmci/jvmciRuntime.hpp"
26 #include "jvmci/jvmciCompilerToVM.hpp"
27 #include "jvmci/jvmciJavaClasses.hpp"
28 #include "oops/oop.inline.hpp"
29 #include "runtime/sharedRuntime.hpp"
30 #include "vmreg_aarch64.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() || inst->is_blr()) {
34 return pc_offset + NativeCall::instruction_size;
35 } else if (inst->is_general_jump()) {
36 return pc_offset + NativeGeneralJump::instruction_size;
37 } else {
38 JVMCI_ERROR_0("unsupported type of instruction for call site");
39 }
40 }
41
42 void CodeInstaller::pd_patch_OopConstant(int pc_offset, Handle constant, TRAPS) {
43 address pc = _instructions->start() + pc_offset;
44 Handle obj = HotSpotObjectConstantImpl::object(constant);
45 jobject value = JNIHandles::make_local(obj());
46 if (HotSpotObjectConstantImpl::compressed(constant)) {
47 #ifdef _LP64
48 int oop_index = _oop_recorder->find_index(value);
49 RelocationHolder rspec = oop_Relocation::spec(oop_index);
50 _instructions->relocate(pc, rspec, 1);
51 Unimplemented();
52 #else
53 JVMCI_ERROR("compressed oop on 32bit");
54 #endif
55 } else {
56 NativeMovConstReg* move = nativeMovConstReg_at(pc);
57 move->set_data((intptr_t) value);
58 int oop_index = _oop_recorder->find_index(value);
59 RelocationHolder rspec = oop_Relocation::spec(oop_index);
60 _instructions->relocate(pc, rspec);
61 }
62 }
63
64 void CodeInstaller::pd_patch_MetaspaceConstant(int pc_offset, Handle constant, TRAPS) {
65 address pc = _instructions->start() + pc_offset;
66 if (HotSpotMetaspaceConstantImpl::compressed(constant)) {
67 #ifdef _LP64
68 narrowKlass narrowOop = record_narrow_metadata_reference(constant, CHECK);
69 TRACE_jvmci_3("relocating (narrow metaspace constant) at " PTR_FORMAT "/0x%x", p2i(pc), narrowOop);
70 Unimplemented();
71 #else
72 JVMCI_ERROR("compressed Klass* on 32bit");
73 #endif
74 } else {
75 NativeMovConstReg* move = nativeMovConstReg_at(pc);
76 Metadata* reference = record_metadata_reference(constant, CHECK);
77 move->set_data((intptr_t) reference);
78 TRACE_jvmci_3("relocating (metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(reference));
79 }
80 }
81
82 void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset) {
83 address pc = _instructions->start() + pc_offset;
84 NativeInstruction* inst = nativeInstruction_at(pc);
85 if (inst->is_adr_aligned()) {
86 address dest = _constants->start() + data_offset;
87 _instructions->relocate(pc, section_word_Relocation::spec((address) dest, CodeBuffer::SECT_CONSTS));
88 TRACE_jvmci_3("relocating at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset);
89 } else {
90 fatal("unknown load or move instruction at " PTR_FORMAT, p2i(pc));
91 }
92 }
93
94 void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination, TRAPS) {
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_jump()) {
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 if (inst->is_general_jump()) {
105 NativeGeneralJump* jump = nativeGeneralJump_at(pc);
106 jump->set_jump_destination((address) foreign_call_destination);
107 _instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec());
108 } else {
109 JVMCI_ERROR("unknown call or jump instruction at " PTR_FORMAT, p2i(pc));
110 }
111 TRACE_jvmci_3("relocating (foreign call) at " PTR_FORMAT, p2i(inst));
112 }
113
114 void CodeInstaller::pd_relocate_JavaMethod(Handle hotspot_method, jint pc_offset, TRAPS) {
115 #ifdef ASSERT
116 Method* method = NULL;
117 // we need to check, this might also be an unresolved method
118 if (hotspot_method->is_a(HotSpotResolvedJavaMethodImpl::klass())) {
119 method = getMethodFromHotSpotMethod(hotspot_method());
120 }
121 #endif
122 switch (_next_call_type) {
123 case INLINE_INVOKE:
124 break;
125 case INVOKEVIRTUAL:
126 case INVOKEINTERFACE: {
127 assert(method == NULL || !method->is_static(), "cannot call static method with invokeinterface");
128 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
129 call->set_destination(SharedRuntime::get_resolve_virtual_call_stub());
130 _instructions->relocate(call->instruction_address(), virtual_call_Relocation::spec(_invoke_mark_pc));
131 break;
132 }
133 case INVOKESTATIC: {
134 assert(method == NULL || method->is_static(), "cannot call non-static method with invokestatic");
135 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
136 call->set_destination(SharedRuntime::get_resolve_static_call_stub());
137 _instructions->relocate(call->instruction_address(), relocInfo::static_call_type);
138 break;
139 }
140 case INVOKESPECIAL: {
141 assert(method == NULL || !method->is_static(), "cannot call static method with invokespecial");
142 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
143 call->set_destination(SharedRuntime::get_resolve_opt_virtual_call_stub());
144 _instructions->relocate(call->instruction_address(), relocInfo::opt_virtual_call_type);
145 break;
146 }
147 default:
148 JVMCI_ERROR("invalid _next_call_type value");
149 break;
150 }
151 }
152
153 void CodeInstaller::pd_relocate_poll(address pc, jint mark, TRAPS) {
154 switch (mark) {
155 case POLL_NEAR:
156 JVMCI_ERROR("unimplemented");
157 break;
158 case POLL_FAR:
159 _instructions->relocate(pc, relocInfo::poll_type);
160 break;
161 case POLL_RETURN_NEAR:
162 JVMCI_ERROR("unimplemented");
163 break;
164 case POLL_RETURN_FAR:
165 _instructions->relocate(pc, relocInfo::poll_return_type);
166 break;
167 default:
168 JVMCI_ERROR("invalid mark value");
169 break;
170 }
171 }
172
173 // convert JVMCI register indices (as used in oop maps) to HotSpot registers
174 VMReg CodeInstaller::get_hotspot_reg(jint jvmci_reg, TRAPS) {
175 if (jvmci_reg < RegisterImpl::number_of_registers) {
176 return as_Register(jvmci_reg)->as_VMReg();
177 } else {
178 jint floatRegisterNumber = jvmci_reg - RegisterImpl::number_of_registers;
179 if (floatRegisterNumber < FloatRegisterImpl::number_of_registers) {
180 return as_FloatRegister(floatRegisterNumber)->as_VMReg();
181 }
182 JVMCI_ERROR_NULL("invalid register number: %d", jvmci_reg);
183 }
184 }
185
186 bool CodeInstaller::is_general_purpose_reg(VMReg hotspotRegister) {
187 return !hotspotRegister->is_FloatRegister();
188 }
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