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, oop method) {
33 Unimplemented();
34 return 0;
35 }
36
37 void CodeInstaller::pd_patch_OopConstant(int pc_offset, Handle& constant) {
38 Unimplemented();
39 }
40
41 void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset) {
42 Unimplemented();
43 }
44
45 void CodeInstaller::pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst) {
46 Unimplemented();
47 }
48
49 void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination) {
50 Unimplemented();
51 }
52
53 void CodeInstaller::pd_relocate_JavaMethod(oop hotspot_method, jint pc_offset) {
54 Unimplemented();
55 }
56
57 void CodeInstaller::pd_relocate_poll(address pc, jint mark) {
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) {
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, oop method) {
33 address pc = _instructions->start() + pc_offset;
34 if (inst->is_call() || inst->is_jump()) {
35 assert(NativeCall::instruction_size == (int)NativeJump::instruction_size, "unexpected size");
36 return pc_offset + NativeCall::instruction_size;
37 } else {
38 // mov+call instruction pair
39 return nativeMovConstReg_at(pc)->next_instruction_address() - pc;
40 }
41 }
42
43 void CodeInstaller::pd_patch_OopConstant(int pc_offset, Handle& constant) {
44 address pc = _instructions->start() + pc_offset;
45 Handle obj = HotSpotObjectConstantImpl::object(constant);
46 jobject value = JNIHandles::make_local(obj());
47
48 MacroAssembler::patch_oop(pc, (address)value);
49 int oop_index = _oop_recorder->find_index(value);
50 _instructions->relocate(pc, oop_Relocation::spec(oop_index));
51
52 TRACE_jvmci_3("relocating (oop constant) at " PTR_FORMAT, p2i(pc));
53 }
54
55 void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset) {
56 Unimplemented();
57 }
58
59 void CodeInstaller::pd_relocate_CodeBlob(CodeBlob* cb, NativeInstruction* inst) {
60 if (cb->is_nmethod()) {
61 nmethod* nm = (nmethod*) cb;
62 nativeJump_at((address)inst)->set_jump_destination(nm->verified_entry_point());
63 } else {
64 nativeJump_at((address)inst)->set_jump_destination(cb->code_begin());
65 }
66 _instructions->relocate((address)inst, runtime_call_Relocation::spec());
67 }
68
69 void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination) {
70 address pc = (address) inst;
71 address dest = (address) foreign_call_destination;
72 assert(inst->is_call(), "should be a call here");
73 if (inst->is_call()) {
74 address trampoline = nativeCall_at(pc)->get_trampoline();
75 if (trampoline) {
76 nativeCall_at(pc)->set_destination_mt_safe(dest, /* assert_lock */false);
77 TRACE_jvmci_3("relocating trampoline (foreign call) at " PTR_FORMAT, p2i(inst));
78 return;
79 }
80 }
81 assert(pc != (address) foreign_call_destination, "call instruction in an infinite loop");
82 MacroAssembler::pd_patch_instruction(pc, dest);
83 TRACE_jvmci_3("relocating (foreign call) at " PTR_FORMAT, p2i(inst));
84 }
85
86 void CodeInstaller::pd_relocate_JavaMethod(oop hotspot_method, jint pc_offset) {
87 #ifdef ASSERT
88 Method* method = NULL;
89 // we need to check, this might also be an unresolved method
90 if (hotspot_method->is_a(HotSpotResolvedJavaMethodImpl::klass())) {
91 method = getMethodFromHotSpotMethod(hotspot_method);
92 }
93 #endif
94 switch (_next_call_type) {
95 case INLINE_INVOKE:
96 break;
97 case INVOKEVIRTUAL:
98 case INVOKEINTERFACE: {
99 assert(method == NULL || !method->is_static(), "cannot call static method with invokeinterface");
100
101 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
102 call->set_destination(SharedRuntime::get_resolve_virtual_call_stub());
103 _instructions->relocate(call->instruction_address(),
104 virtual_call_Relocation::spec(_invoke_mark_pc));
105 break;
106 }
107 case INVOKESTATIC: {
108 assert(method == NULL || method->is_static(), "cannot call non-static method with invokestatic");
109
110 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
111 call->set_destination(SharedRuntime::get_resolve_static_call_stub());
112 _instructions->relocate(call->instruction_address(),
113 relocInfo::static_call_type);
114 break;
115 }
116 case INVOKESPECIAL: {
117 assert(method == NULL || !method->is_static(), "cannot call static method with invokespecial");
118 NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
119 call->set_destination(SharedRuntime::get_resolve_opt_virtual_call_stub());
120 _instructions->relocate(call->instruction_address(),
121 relocInfo::opt_virtual_call_type);
122 break;
123 }
124 default:
125 break;
126 }
127 }
128
129 void CodeInstaller::pd_relocate_poll(address pc, jint mark) {
130 MacroAssembler::pd_patch_instruction_size(pc, os::get_polling_page());
131 }
132
133 // convert JVMCI register indices (as used in oop maps) to HotSpot registers
134 VMReg CodeInstaller::get_hotspot_reg(jint jvmci_reg) {
135 if (jvmci_reg < RegisterImpl::number_of_registers) {
136 return as_Register(jvmci_reg)->as_VMReg();
137 } else {
138 jint floatRegisterNumber = jvmci_reg - RegisterImpl::number_of_registers;
139 if (floatRegisterNumber < FloatRegisterImpl::number_of_registers) {
140 return as_FloatRegister(floatRegisterNumber)->as_VMReg();
141 }
142 ShouldNotReachHere();
143 return NULL;
144 }
145 }
146
147 bool CodeInstaller::is_general_purpose_reg(VMReg hotspotRegister) {
148 return !(hotspotRegister->is_FloatRegister() || hotspotRegister->is_FloatRegister());
149 }
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