36 lines
1.2 KiB
Diff
36 lines
1.2 KiB
Diff
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From ae58d7305de27aa96abf715456a07045018cda98 Mon Sep 17 00:00:00 2001
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From: Mark Wielaard <mjw@redhat.com>
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Date: Tue, 26 Nov 2013 22:49:55 +0100
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Subject: [PATCH] Bug 328100 XABORT not implemented.
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XABORT can be called even when there is no current transaction.
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In such a case XABORT acts as a NOP. Implement xabort as nop.
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---
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priv/guest_amd64_toIR.c | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/VEX/priv/guest_amd64_toIR.c b/VEX/priv/guest_amd64_toIR.c
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index a17c8f4..7ea5748 100644
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--- a/VEX/priv/guest_amd64_toIR.c
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+++ b/VEX/priv/guest_amd64_toIR.c
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@@ -20270,6 +20270,16 @@ Long dis_ESC_NONE (
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return delta;
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}
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/* END HACKY SUPPORT FOR xbegin */
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+ /* BEGIN HACKY SUPPORT FOR xabort */
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+ if (modrm == 0xF8 && !have66orF2orF3(pfx) && sz == 1
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+ && (archinfo->hwcaps & VEX_HWCAPS_AMD64_AVX)) {
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+ delta++; /* mod/rm byte */
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+ abyte = getUChar(delta); delta++;
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+ /* There is never a real transaction in progress, so do nothing. */
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+ DIP("xabort $%d", (Int)abyte);
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+ return delta;
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+ }
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+ /* END HACKY SUPPORT FOR xabort */
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goto decode_failure;
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case 0xC8: /* ENTER */
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--
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1.8.3.1
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