fche changed the topic of #systemtap to: http://sourceware.org/systemtap; email systemtap@sourceware.org if answers here not timely, conversations may be logged
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<irker794> systemtap: mcermak systemtap.git:refs/heads/master * release-3.0-129-g91ccd79 / testsuite/Makefile.am testsuite/Makefile.in: Testsuite resume mode only works with its own files. http://tinyurl.com/jp3zcbb
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<irker794> systemtap: dsmith systemtap.git:refs/heads/master * release-3.0-130-g6d023ac / tapset/linux/dentry.stp tapset/linux/ioblock.stp tapset/linux/nd_syscalls.stp tapset/linux/nd_syscalls2.stp tapset/linux/signal.stp: Convert more embedded-C constants to use @const(). http://tinyurl.com/j5vxwcw
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<irker794> systemtap: dsmith systemtap.git:refs/heads/master * release-3.0-131-g8a99a64 / runtime/linux/loc2c-runtime.h: Fix PR20282 by updating loc2c-runtime.h for aarch64. http://tinyurl.com/ht4aar2
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<jistone> drsmith, one side-effect of @const is that it specifies "/* unprivileged */", but the cases you changed did not have that before
<jistone> drsmith, are you sure this is ok?
<drsmith> jistone, hmm, didn't think of that
<drsmith> C constants in themselves really shouldn't be unprivileged or privileged
<fche> the question is whether unprivileged users can do @const("panic()")
<drsmith> unprivileged users should be able to do: @const("C_CONSTANT")
<jistone> well, no, @const is off-limits already without -g
<drsmith> so, as long as we don't do @const("panic()") in a tapset, I'd think we be fine
<jistone> I'm trying to think whether this can have problems - but that's why I asked. I'm not really sure
<drsmith> jistone: I'd bet those constants I changed should have had '/* unprivileged */' all along, but didn't
<drsmith> but you thinking about this is a good thing
<fche> what does /* unprivileged */ do for us in this context?
<jistone> I think there may be indirect effects -- pure-stap functions that were "privileged" due to that embedded-c
<drsmith> right, I see what you mean
<drsmith> that would be bad practice to depending on such side effects
<jistone> do we have any other way to mark pure-stap functions as privileged?
<jistone> but as long as that @const truly is harmless itself, then it probably is actually fine
<drsmith> by default, all pure-stap functions are privileged
<drsmith> you have to mark them as unprivileged
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<jistone> huh? what? there's no "mark" except in embedded-c code
<drsmith> oh, sorry - pure stap function
<jistone> so, as long as that @const is harmless, then it shouldn't be possible for a pure-stap function to do anything bad
<drsmith> sounds reasonable
<jistone> so... I think we're ok here
<fche> ok
<drsmith> that's probably why these constants weren't converted earlier
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<irker794> systemtap: flu systemtap.git:refs/heads/master * release-3.0-132-g352c84f / dwflpp.cxx elaborate.cxx elaborate.h tapset-been.cxx tapset-itrace.cxx tapset-mark.cxx tapset-method.cxx tapset-netfilter.cxx tapset-perfmon.cxx tapset-procfs.cxx tapset-timers.cxx tapset-utrace.cxx tapsets.cxx: Improve error messages http://tinyurl.com/j6bsx4v
<irker794> systemtap: dsmith systemtap.git:refs/heads/master * release-3.0-133-g42b9738 / man/stapprobes.3stap: Fix PR20286 by documenting that timer probes can get skipped. http://tinyurl.com/z3nmdwk
<mjw> wait, wha? :)
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<mjw> the dwfl_errmsg (-1) is a little late
<fche> heh yeah
<mjw> I actually cannot find the dwfl call that initializes that line table
<fche> this used to work, I swear it
<mjw> ah, that is because it is using the raw elf data directly
<mjw> it seems to only search in the main elf, not in the debug file?
<fche> that could be the problem.
<fche> so the code works on synthetic testsuite binaries but not real deployed ones
<mjw> sigh
<mjw> I always forget my sourceware bugzilla password
<fche> your web browser doesn't store it for you?
<mjw> don't trust it :)
<mjw> but clearly I cannot trust my memory either
<jistone> you could at least use keepass or something
<fche> I just checked - your password is LETMEFIXBUGS
<jistone> huh, that came up as ************ here, must not be the same as my password
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<mjw> posted a quick untested patch idea
<mjw> need some sleep now, sorry.
<jistone> (brolley was connected via ipv6 -- funny how exotic that still feels)
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<fche> thanks mark
<fche> er too late
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