From: Julian Seward <jseward@acm.org>
Date: Mon, 12 Mar 2007 00:43:59 +0000 (+0000)
Subject: Support 'INT $3' instruction on amd64 (counterpart to vx1736).
X-Git-Tag: svn/VALGRIND_3_3_1^2~49
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d95a9bab2f45af921a1c6c922ff2c6360a4b614d;p=thirdparty%2Fvalgrind.git

Support 'INT $3' instruction on amd64 (counterpart to vx1736).



git-svn-id: svn://svn.valgrind.org/vex/trunk@1741
---

diff --git a/VEX/priv/guest-amd64/toIR.c b/VEX/priv/guest-amd64/toIR.c
index b18d947661..523ef6fa08 100644
--- a/VEX/priv/guest-amd64/toIR.c
+++ b/VEX/priv/guest-amd64/toIR.c
@@ -12405,6 +12405,12 @@ DisResult disInstr_AMD64_WRK (
 
    /* ------------------------ INT ------------------------ */
 
+   case 0xCC: /* INT 3 */
+      jmp_lit(Ijk_Trap, guest_RIP_bbstart + delta);
+      dres.whatNext = Dis_StopHere;
+      DIP("int $0x3\n");
+      break;
+
    case 0xCD: { /* INT imm8 */
       IRJumpKind jk = Ijk_Boring;
       if (have66orF2orF3(pfx)) goto decode_failure;
diff --git a/VEX/priv/host-amd64/hdefs.c b/VEX/priv/host-amd64/hdefs.c
index 2e1b8246df..080eafe4f0 100644
--- a/VEX/priv/host-amd64/hdefs.c
+++ b/VEX/priv/host-amd64/hdefs.c
@@ -2640,6 +2640,9 @@ Int emit_AMD64Instr ( UChar* buf, Int nbuf, AMD64Instr* i,
          case Ijk_NoRedir:
             *p++ = 0xBD;
             p = emit32(p, VEX_TRC_JMP_NOREDIR); break;
+         case Ijk_Trap:
+            *p++ = 0xBD;
+            p = emit32(p, VEX_TRC_JMP_TRAP); break;
          case Ijk_Ret:
          case Ijk_Call:
          case Ijk_Boring: