Define int3 and ud2 instructions for breakpoints and invalid opcodes

Signed-off-by: BradleyWood <bradley.wood@ibm.com>
eclipse · Jul 7, 2021 · dda2fa5 · dda2fa5
1 parent a6162a0
commit dda2fa5
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Showing 2 changed files with 10 additions and 0 deletions.
diff --git a/compiler/x/codegen/OMRInstOpCode.enum b/compiler/x/codegen/OMRInstOpCode.enum
@@ -456,6 +456,7 @@
    INC2Mem,
    INC4Mem,
    INC8Mem,
+   INT3,
    JA1,
    JAE1,
    JB1,
@@ -924,6 +925,7 @@
    TEST2MemReg,
    TEST4MemReg,
    TEST8MemReg,
+   UD2,
    XABORT,
    XBEGIN2,
    XBEGIN4,

diff --git a/compiler/x/codegen/X86Ops.ins b/compiler/x/codegen/X86Ops.ins
@@ -1758,6 +1758,10 @@ INSTRUCTION(INC8Mem, inc,
             BINARY(VEX_L___, VEX_vNONE, PREFIX___, REX_W, ESCAPE_____, 0xff, 0, ModRM_EXT_, Immediate_0),
             PROPERTY0(IA32OpProp_ModifiesTarget | IA32OpProp_ModifiesOverflowFlag | IA32OpProp_ModifiesSignFlag | IA32OpProp_ModifiesZeroFlag | IA32OpProp_ModifiesParityFlag | IA32OpProp_UsesTarget),
             PROPERTY1(IA32OpProp1_SetsCCForTest | IA32OpProp1_SetsCCForCompare | IA32OpProp1_SupportsLockPrefix | IA32OpProp1_LongTarget)),
+INSTRUCTION(INT3, int3,
+            BINARY(VEX_L___, VEX_vNONE, PREFIX___, REX__, ESCAPE_____, 0xcc, 0, ModRM_NONE, Immediate_0),
+            PROPERTY0(0),
+            PROPERTY1(0)),
 INSTRUCTION(JA1, ja,
             BINARY(VEX_L___, VEX_vNONE, PREFIX___, REX__, ESCAPE_____, 0x77, 0, ModRM_NONE, Immediate_1),
             PROPERTY0(IA32OpProp_BranchOp | IA32OpProp_TestsZeroFlag | IA32OpProp_TestsCarryFlag | IA32OpProp_ByteImmediate),
@@ -3630,6 +3634,10 @@ INSTRUCTION(TEST8MemReg, test,
             BINARY(VEX_L___, VEX_vNONE, PREFIX___, REX_W, ESCAPE_____, 0x85, 0, ModRM_MR__, Immediate_0),
             PROPERTY0(IA32OpProp_ModifiesOverflowFlag | IA32OpProp_ModifiesSignFlag | IA32OpProp_ModifiesZeroFlag | IA32OpProp_ModifiesParityFlag | IA32OpProp_ModifiesCarryFlag | IA32OpProp_UsesTarget),
             PROPERTY1(IA32OpProp1_LongSource | IA32OpProp1_LongTarget | IA32OpProp1_FusableCompare)),
+INSTRUCTION(UD2, ud2,
+            BINARY(VEX_L___, VEX_vNONE, PREFIX___, REX__, ESCAPE_0F__, 0x0b, 0, ModRM_NONE, Immediate_0),
+            PROPERTY0(0),
+            PROPERTY1(0)),
 INSTRUCTION(XABORT, xabort,
             BINARY(VEX_L___, VEX_vNONE, PREFIX___, REX__, ESCAPE_____, 0xc6, 7, ModRM_EXT_, Immediate_1),
             PROPERTY0(IA32OpProp_ByteImmediate),