jvmciCodeInstaller_sparc.cpp revision 13249:a2753984d2c1 
1/*
2 * Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
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 "utilities/align.hpp"
31#include "vmreg_sparc.inline.hpp"
32
33jint CodeInstaller::pd_next_offset(NativeInstruction* inst, jint pc_offset, Handle method, TRAPS) {
34  if (inst->is_call() || inst->is_jump()) {
35    return pc_offset + NativeCall::instruction_size;
36  } else if (inst->is_call_reg()) {
37    return pc_offset + NativeCallReg::instruction_size;
38  } else if (inst->is_sethi()) {
39    return pc_offset + NativeFarCall::instruction_size;
40  } else {
41    JVMCI_ERROR_0("unsupported type of instruction for call site");
42    return 0;
43  }
44}
45
46void CodeInstaller::pd_patch_OopConstant(int pc_offset, Handle constant, TRAPS) {
47  address pc = _instructions->start() + pc_offset;
48  Handle obj(THREAD, HotSpotObjectConstantImpl::object(constant));
49  jobject value = JNIHandles::make_local(obj());
50  if (HotSpotObjectConstantImpl::compressed(constant)) {
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    NativeMovConstReg* move = nativeMovConstReg_at(pc);
56    move->set_data((intptr_t) value);
57
58    // We need two relocations:  one on the sethi and one on the add.
59    int oop_index = _oop_recorder->find_index(value);
60    RelocationHolder rspec = oop_Relocation::spec(oop_index);
61    _instructions->relocate(pc + NativeMovConstReg::sethi_offset, rspec);
62    _instructions->relocate(pc + NativeMovConstReg::add_offset, rspec);
63  }
64}
65
66void CodeInstaller::pd_patch_MetaspaceConstant(int pc_offset, Handle constant, TRAPS) {
67  address pc = _instructions->start() + pc_offset;
68  if (HotSpotMetaspaceConstantImpl::compressed(constant)) {
69    NativeMovConstReg32* move = nativeMovConstReg32_at(pc);
70    narrowKlass narrowOop = record_narrow_metadata_reference(_instructions, pc, constant, CHECK);
71    move->set_data((intptr_t)narrowOop);
72    TRACE_jvmci_3("relocating (narrow metaspace constant) at " PTR_FORMAT "/0x%x", p2i(pc), narrowOop);
73  } else {
74    NativeMovConstReg* move = nativeMovConstReg_at(pc);
75    void* reference = record_metadata_reference(_instructions, pc, constant, CHECK);
76    move->set_data((intptr_t)reference);
77    TRACE_jvmci_3("relocating (metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(reference));
78  }
79}
80
81void CodeInstaller::pd_patch_DataSectionReference(int pc_offset, int data_offset, TRAPS) {
82  address pc = _instructions->start() + pc_offset;
83  NativeInstruction* inst = nativeInstruction_at(pc);
84  NativeInstruction* inst1 = nativeInstruction_at(pc + 4);
85  if(inst->is_sethi() && inst1->is_nop()) {
86      address const_start = _constants->start();
87      address dest = _constants->start() + data_offset;
88      if(_constants_size > 0) {
89        _instructions->relocate(pc + NativeMovConstReg::sethi_offset, internal_word_Relocation::spec((address) dest));
90        _instructions->relocate(pc + NativeMovConstReg::add_offset, internal_word_Relocation::spec((address) dest));
91      }
92      TRACE_jvmci_3("relocating at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset);
93  }else {
94    int const_size = align_up(_constants->end()-_constants->start(), CodeEntryAlignment);
95    NativeMovRegMem* load = nativeMovRegMem_at(pc);
96    // This offset must match with SPARCLoadConstantTableBaseOp.emitCode
97    load->set_offset(- (const_size - data_offset + Assembler::min_simm13()));
98    TRACE_jvmci_3("relocating ld at " PTR_FORMAT " (+%d) with destination at %d", p2i(pc), pc_offset, data_offset);
99  }
100}
101
102void CodeInstaller::pd_relocate_ForeignCall(NativeInstruction* inst, jlong foreign_call_destination, TRAPS) {
103  address pc = (address) inst;
104  if (inst->is_call()) {
105    NativeCall* call = nativeCall_at(pc);
106    call->set_destination((address) foreign_call_destination);
107    _instructions->relocate(call->instruction_address(), runtime_call_Relocation::spec());
108  } else if (inst->is_sethi()) {
109    NativeJump* jump = nativeJump_at(pc);
110    jump->set_jump_destination((address) foreign_call_destination);
111    _instructions->relocate(jump->instruction_address(), runtime_call_Relocation::spec());
112  } else {
113    JVMCI_ERROR("unknown call or jump instruction at " PTR_FORMAT, p2i(pc));
114  }
115  TRACE_jvmci_3("relocating (foreign call) at " PTR_FORMAT, p2i(inst));
116}
117
118void CodeInstaller::pd_relocate_JavaMethod(Handle hotspot_method, jint pc_offset, TRAPS) {
119#ifdef ASSERT
120  Method* method = NULL;
121  // we need to check, this might also be an unresolved method
122  if (hotspot_method->is_a(HotSpotResolvedJavaMethodImpl::klass())) {
123    method = getMethodFromHotSpotMethod(hotspot_method());
124  }
125#endif
126  switch (_next_call_type) {
127    case INLINE_INVOKE:
128      break;
129    case INVOKEVIRTUAL:
130    case INVOKEINTERFACE: {
131      assert(method == NULL || !method->is_static(), "cannot call static method with invokeinterface");
132      NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
133      call->set_destination(SharedRuntime::get_resolve_virtual_call_stub());
134      _instructions->relocate(call->instruction_address(), virtual_call_Relocation::spec(_invoke_mark_pc));
135      break;
136    }
137    case INVOKESTATIC: {
138      assert(method == NULL || method->is_static(), "cannot call non-static method with invokestatic");
139      NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
140      call->set_destination(SharedRuntime::get_resolve_static_call_stub());
141      _instructions->relocate(call->instruction_address(), relocInfo::static_call_type);
142      break;
143    }
144    case INVOKESPECIAL: {
145      assert(method == NULL || !method->is_static(), "cannot call static method with invokespecial");
146      NativeCall* call = nativeCall_at(_instructions->start() + pc_offset);
147      call->set_destination(SharedRuntime::get_resolve_opt_virtual_call_stub());
148      _instructions->relocate(call->instruction_address(), relocInfo::opt_virtual_call_type);
149      break;
150    }
151    default:
152      JVMCI_ERROR("invalid _next_call_type value");
153      break;
154  }
155}
156
157void CodeInstaller::pd_relocate_poll(address pc, jint mark, TRAPS) {
158  switch (mark) {
159    case POLL_NEAR:
160      JVMCI_ERROR("unimplemented");
161      break;
162    case POLL_FAR:
163      _instructions->relocate(pc, relocInfo::poll_type);
164      break;
165    case POLL_RETURN_NEAR:
166      JVMCI_ERROR("unimplemented");
167      break;
168    case POLL_RETURN_FAR:
169      _instructions->relocate(pc, relocInfo::poll_return_type);
170      break;
171    default:
172      JVMCI_ERROR("invalid mark value");
173      break;
174  }
175}
176
177// convert JVMCI register indices (as used in oop maps) to HotSpot registers
178VMReg CodeInstaller::get_hotspot_reg(jint jvmci_reg, TRAPS) {
179  // JVMCI Registers are numbered as follows:
180  //   0..31: Thirty-two General Purpose registers (CPU Registers)
181  //   32..63: Thirty-two single precision float registers
182  //   64..95: Thirty-two double precision float registers
183  //   96..111: Sixteen quad precision float registers
184  if (jvmci_reg < 32) {
185    return as_Register(jvmci_reg)->as_VMReg();
186  } else {
187    jint floatRegisterNumber;
188    if(jvmci_reg < 64) { // Single precision
189      floatRegisterNumber = jvmci_reg - 32;
190    } else if(jvmci_reg < 96) {
191      floatRegisterNumber = 2 * (jvmci_reg - 64);
192    } else if(jvmci_reg < 112) {
193      floatRegisterNumber = 4 * (jvmci_reg - 96);
194    } else {
195      JVMCI_ERROR_NULL("invalid register number: %d", jvmci_reg);
196    }
197    return as_FloatRegister(floatRegisterNumber)->as_VMReg();
198  }
199}
200
201bool CodeInstaller::is_general_purpose_reg(VMReg hotspotRegister) {
202  return !hotspotRegister->is_FloatRegister();
203}
204