https://bugs.kde.org/show_bug.cgi?id=520856
Paul Floyd <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|[email protected] |[email protected] CC| |[email protected] --- Comment #1 from Paul Floyd <[email protected]> --- Are you using the most recent Valgrind version? Could you try modifying and building Valgrind yourself? I think that the issue is that our x86 decoder only handles a limited number of opcodes with the 0x32 cs prefix. Here is the patch that needs applying diff --git a/VEX/priv/guest_x86_toIR.c b/VEX/priv/guest_x86_toIR.c index 66fcaf5a5..7d1533d93 100644 --- a/VEX/priv/guest_x86_toIR.c +++ b/VEX/priv/guest_x86_toIR.c @@ -8598,7 +8598,8 @@ DisResult disInstr_X86_WRK ( UChar op2 = getIByte(delta+2); if ((op1 >= 0x70 && op1 <= 0x7F) || (op1 == 0xE3) - || (op1 == 0x0F && op2 >= 0x80 && op2 <= 0x8F)) { + || (op1 == 0x0F && op2 >= 0x80 && op2 <= 0x8F) + || (op1 == 0xff)) { if (0) vex_printf("vex x86->IR: ignoring branch hint\n"); } else { /* All other CS override cases are not handled */ It would be great if you could test that and let us know if it fixes your problem. -- You are receiving this mail because: You are watching all bug changes.
