On 08/08/2012 02:57 PM, Oleg Nesterov wrote:
+static int insn_changes_flags(struct arch_uprobe *auprobe) +{ + /* popf reads flags from stack */ + if (auprobe->insn[0] == 0x9d) + return 1;Ah, somehow I didn't think about this before. ->insn[0] doesn't look right, we should skip the prefixes.
Why? I tried 'lock popf' and I got invalid instruction. The same for 'rep popf'.
Oleg.
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