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 package compiler.jvmci.code.amd64;
25
26 import jdk.vm.ci.amd64.AMD64;
27 import jdk.vm.ci.amd64.AMD64Kind;
28 import jdk.vm.ci.code.CodeCacheProvider;
29 import jdk.vm.ci.code.DebugInfo;
30 import jdk.vm.ci.code.Register;
31 import jdk.vm.ci.code.StackSlot;
32 import jdk.vm.ci.code.site.ConstantReference;
33 import jdk.vm.ci.code.site.DataSectionReference;
34 import jdk.vm.ci.hotspot.HotSpotCallingConventionType;
35 import jdk.vm.ci.hotspot.HotSpotConstant;
36 import jdk.vm.ci.meta.JavaKind;
37 import jdk.vm.ci.meta.LIRKind;
38 import jdk.vm.ci.meta.VMConstant;
39
40 import compiler.jvmci.code.TestAssembler;
41
42 public class AMD64TestAssembler extends TestAssembler {
43
44 public AMD64TestAssembler(CodeCacheProvider codeCache) {
45 super(codeCache, 16, 16, AMD64Kind.DWORD, AMD64.rax, AMD64.rcx, AMD64.rdi, AMD64.r8, AMD64.r9, AMD64.r10);
46 }
47
48 private void emitFatNop() {
49 // 5 byte NOP:
50 // NOP DWORD ptr [EAX + EAX*1 + 00H]
51 code.emitByte(0x0F);
52 code.emitByte(0x1F);
53 code.emitByte(0x44);
54 code.emitByte(0x00);
55 code.emitByte(0x00);
56 }
57
58 @Override
59 public void emitPrologue() {
60 // WARNING: Initial instruction MUST be 5 bytes or longer so that
61 // NativeJump::patch_verified_entry will be able to patch out the entry
62 // code safely.
63 emitFatNop();
64 code.emitByte(0x50 | AMD64.rbp.encoding); // PUSH rbp
65 emitMove(true, AMD64.rbp, AMD64.rsp); // MOV rbp, rsp
66 setDeoptRescueSlot(newStackSlot(LIRKind.value(AMD64Kind.QWORD)));
67 }
68
69 @Override
70 public void emitGrowStack(int size) {
71 // SUB rsp, size
72 code.emitByte(0x48);
73 code.emitByte(0x81);
74 code.emitByte(0xEC);
75 code.emitInt(size);
76 }
77
78 @Override
79 public Register emitIntArg0() {
80 return codeCache.getRegisterConfig().getCallingConventionRegisters(HotSpotCallingConventionType.JavaCall, JavaKind.Int)[0];
81 }
82
83 @Override
84 public Register emitIntArg1() {
85 return codeCache.getRegisterConfig().getCallingConventionRegisters(HotSpotCallingConventionType.JavaCall, JavaKind.Int)[1];
86 }
|
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 package compiler.jvmci.code.amd64;
25
26 import jdk.vm.ci.amd64.AMD64;
27 import jdk.vm.ci.amd64.AMD64Kind;
28 import jdk.vm.ci.code.CodeCacheProvider;
29 import jdk.vm.ci.code.DebugInfo;
30 import jdk.vm.ci.code.Register;
31 import jdk.vm.ci.code.StackSlot;
32 import jdk.vm.ci.code.site.ConstantReference;
33 import jdk.vm.ci.code.site.DataSectionReference;
34 import jdk.vm.ci.hotspot.HotSpotCallingConventionType;
35 import jdk.vm.ci.hotspot.HotSpotConstant;
36 import jdk.vm.ci.hotspot.HotSpotForeignCallTarget;
37 import jdk.vm.ci.hotspot.HotSpotVMConfig;
38 import jdk.vm.ci.meta.JavaKind;
39 import jdk.vm.ci.meta.LIRKind;
40 import jdk.vm.ci.meta.VMConstant;
41
42 import compiler.jvmci.code.TestAssembler;
43
44 public class AMD64TestAssembler extends TestAssembler {
45
46 public AMD64TestAssembler(CodeCacheProvider codeCache) {
47 super(codeCache, 16, 16, AMD64Kind.DWORD, AMD64.rax, AMD64.rcx, AMD64.rdi, AMD64.r8, AMD64.r9, AMD64.r10);
48 }
49
50 private void emitFatNop() {
51 // 5 byte NOP:
52 // NOP DWORD ptr [EAX + EAX*1 + 00H]
53 code.emitByte(0x0F);
54 code.emitByte(0x1F);
55 code.emitByte(0x44);
56 code.emitByte(0x00);
57 code.emitByte(0x00);
58 }
59
60 @Override
61 public void emitPrologue() {
62 // WARNING: Initial instruction MUST be 5 bytes or longer so that
63 // NativeJump::patch_verified_entry will be able to patch out the entry
64 // code safely.
65 emitFatNop();
66 code.emitByte(0x50 | AMD64.rbp.encoding); // PUSH rbp
67 emitMove(true, AMD64.rbp, AMD64.rsp); // MOV rbp, rsp
68 setDeoptRescueSlot(newStackSlot(LIRKind.value(AMD64Kind.QWORD)));
69 }
70
71 @Override
72 public void emitEpilogue() {
73 HotSpotVMConfig config = HotSpotVMConfig.config();
74 recordMark(config.MARKID_DEOPT_HANDLER_ENTRY);
75 recordCall(new HotSpotForeignCallTarget(config.handleDeoptStub), 5, true, null);
76 code.emitByte(0xE8); // CALL rel32
77 code.emitInt(0xDEADDEAD);
78 }
79
80 @Override
81 public void emitGrowStack(int size) {
82 // SUB rsp, size
83 code.emitByte(0x48);
84 code.emitByte(0x81);
85 code.emitByte(0xEC);
86 code.emitInt(size);
87 }
88
89 @Override
90 public Register emitIntArg0() {
91 return codeCache.getRegisterConfig().getCallingConventionRegisters(HotSpotCallingConventionType.JavaCall, JavaKind.Int)[0];
92 }
93
94 @Override
95 public Register emitIntArg1() {
96 return codeCache.getRegisterConfig().getCallingConventionRegisters(HotSpotCallingConventionType.JavaCall, JavaKind.Int)[1];
97 }
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