[Valgrind-developers] vex: r1736 - in trunk/priv: guest-x86 host-x86

[<sv...@va...>]

Author: sewardj
Date: 2007-02-28 23:31:42 +0000 (Wed, 28 Feb 2007)
New Revision: 1736

Log:
Support 'INT $3' instruction.

Modified:
   trunk/priv/guest-x86/toIR.c
   trunk/priv/host-x86/hdefs.c


Modified: trunk/priv/guest-x86/toIR.c
===================================================================
--- trunk/priv/guest-x86/toIR.c	2007-02-23 08:48:22 UTC (rev 1735)
+++ trunk/priv/guest-x86/toIR.c	2007-02-28 23:31:42 UTC (rev 1736)
@@ -11208,6 +11208,12 @@
 
    /* ------------------------ INT ------------------------ */
 
+   case 0xCC: /* INT 3 */
+      jmp_lit(Ijk_Trap,((Addr32)guest_EIP_bbstart)+delta);
+      dres.whatNext = Dis_StopHere;
+      DIP("int $0x3\n");
+      break;
+
    case 0xCD: /* INT imm8 */
       d32 = getIByte(delta); delta++;
       if (d32 != 0x80) goto decode_failure;

Modified: trunk/priv/host-x86/hdefs.c
===================================================================
--- trunk/priv/host-x86/hdefs.c	2007-02-23 08:48:22 UTC (rev 1735)
+++ trunk/priv/host-x86/hdefs.c	2007-02-28 23:31:42 UTC (rev 1736)
@@ -2184,6 +2184,9 @@
          case Ijk_Sys_sysenter:
             *p++ = 0xBD;
             p = emit32(p, VEX_TRC_JMP_SYS_SYSENTER); break;
+         case Ijk_Trap:
+            *p++ = 0xBD;
+            p = emit32(p, VEX_TRC_JMP_TRAP); break;
          case Ijk_Ret:
 	 case Ijk_Call:
          case Ijk_Boring: