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probing assembly functions doesn't work anymore


Hi,

I have an old stp script that worked with some older systemtap version, but now
fails with a current one (CVS of yesterday). After some investigation
it looks like stap cannot hook any pure assembler functions anymore.

e.g. on x86-64

# cat getuser.stp 
probe kernel.function("__get_user_4") {
}
# stap getuser.stp 
semantic error: no match for probe point while resolving probe point kernel.function("__get_user_4")
Pass 2: analysis failed.  Try again with more '-v' (verbose) options.

The function is there of course

# grep get_user_4 /proc/kallsyms
ffffffff80341f90 T __get_user_4


-Andi


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