Bug 330319 - vex amd64->IR: unhandled instruction bytes: 0xF 0x1 0xD5 (xend)
We are never in an transaction (xbegin immediately aborts).
So this just always generates a General Protection Fault.
git-svn-id: svn://svn.valgrind.org/vex/trunk@2931 8f6e269a-dfd6-0310-a8e1-e2731360e62c
diff --git a/priv/guest_amd64_toIR.c b/priv/guest_amd64_toIR.c
index ba23ee2..9ee8319 100644
--- a/priv/guest_amd64_toIR.c
+++ b/priv/guest_amd64_toIR.c
@@ -21107,6 +21107,18 @@
putIRegRDX(4, mkU32(0));
return delta;
}
+ /* BEGIN HACKY SUPPORT FOR xend */
+ /* 0F 01 D5 = XEND */
+ if (modrm == 0xD5 && (archinfo->hwcaps & VEX_HWCAPS_AMD64_AVX)) {
+ /* We are never in an transaction (xbegin immediately aborts).
+ So this just always generates a General Protection Fault. */
+ delta += 1;
+ jmp_lit(dres, Ijk_SigSEGV, guest_RIP_bbstart + delta);
+ vassert(dres->whatNext == Dis_StopHere);
+ DIP("xend\n");
+ return delta;
+ }
+ /* END HACKY SUPPORT FOR xend */
/* BEGIN HACKY SUPPORT FOR xtest */
/* 0F 01 D6 = XTEST */
if (modrm == 0xD6 && (archinfo->hwcaps & VEX_HWCAPS_AMD64_AVX)) {
