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    Subject[PATCH 3/4] x86: add kprobe-booster to X86_64
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    Sorry I missed an ifdef in this patch in the following hunk:

    @@ -183,6 +185,9 @@ retry:
    }

    switch (opcode & 0xf0) {
    +#ifdef X86_64
    + case 0x40:
    + goto retry; /* REX prefix is boostable */
    case 0x60:
    if (0x63 < opcode && opcode < 0x67)
    goto retry; /* prefixes */

    Just add the #ifdef to only catch case 0x40.

    @@ -183,6 +185,10 @@ retry:
    }

    switch (opcode & 0xf0) {
    +#ifdef X86_64
    + case 0x40:
    + goto retry; /* REX prefix is boostable */
    +#endif
    case 0x60:
    if (0x63 < opcode && opcode < 0x67)
    goto retry; /* prefixes */
    Cheers,

    Harvey



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