[Bug uprobes/10324] x86-64 uprobes gives up on 0xf0 prefix (lock)

[fche at redhat dot com]

------- Additional Comments From fche at redhat dot com  2009-06-24 22:09 -------

> It's unsupported because I was vaguely uncomfortable about it and have never
> tested probing locked instructions.  You could certainly try it out by changing
> the f0 bit from 0 to 1 in good_insns_32[] and good_insns_64[].

I wouldn't trust such an experiment, since "lock" is rich with
concurrency semantics, testing the correctness of the SSOL
emulation would not be trivial.

> See PR #5273, "x86 arch_validate_probed_insn(): lighten up?"

Yeah, if you like, CLOSE/DUPLICATE them.


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http://sourceware.org/bugzilla/show_bug.cgi?id=10324

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