[Bug dynamic-link/29818] STAP probe map_failed is no longer generated.

["adhemerval.zanella at linaro dot org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=29818

--- Comment #4 from Adhemerval Zanella <adhemerval.zanella at linaro dot org> ---
(In reply to Frank Ch. Eigler from comment #3)
> Interesting!
> 
> To Pedro's question, enumerating probes in a compiled libc is a matter of a
> perf or readelf or stap command, not a problem.  Such a thing could be a
> test case that matches the manual/probes.texi list against what turns out to
> be compiled.
> 
> Consumers such as gdb should not assume/assert the existence of any
> particular probe, if at all possible.

We have a internal script (scripts/glibcelf.py) which has ELF parse support to
check against the elf/elf.h header definition, it should be feasible to extend
it support stapsdt notes and compare against the ones described in
manual/probes.texi (which could be obtained with another script).

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