On 2011-09-05 21:45, Blue Swirl wrote: > On Mon, Sep 5, 2011 at 3:37 PM, Stefan Hajnoczi > <stefa...@linux.vnet.ibm.com> wrote: >> String arguments are useful for producing human-readable traces without >> post-processing (e.g. stderr backend). Although the simple backend >> cannot handles strings all others can. Strings should be allowed and >> the simple backend can be extended to support them. > > I don't think this is possible in general. Yes if the string can be > found in the executable (assuming address space randomizations don't > make that impossible post run), but not if the string happens to be > constructed in the stack or in the data segment during run time.
Strings can be addressed in tracers like simpletrace by storing a fixed-size copy (e.g. 64 chars) in the log. That will work out for the majority of use cases. Jan
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