[Bug translator/19110] New: make it easier to know if the kernel exports a particular function

[Bug translator/19110] New: make it easier to know if the kernel exports a particular function

[dsmith at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19110

            Bug ID: 19110
           Summary: make it easier to know if the kernel exports a
                    particular function
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: translator
          Assignee: systemtap at sourceware dot org
          Reporter: dsmith at redhat dot com
  Target Milestone: ---

When working on bug #6525, I needed to know whether a certain kernel function
is exported or not. Currently, the way you do this is by adding a new
'exportconf' test in the translator source, which requires recompiling the
translator.

I wonder if we could somehow handle this differently, so that recompiling the
translator isn't required. For runtime C code use, a brute force approach would
be to just add a #define for everything that is exported:

#define STAPCONF_FOO_EXPORTED
#define STAPCONF_BAR_EXPORTED

etc.

For bonus points, we could provide a preprocessor directive, perhaps something
like:

%(exported("foo") %?
...
%)

Although off the top of my head I can't really think of a use for knowing if a
kernel function is exported in systemtap script code.

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[Bug translator/19110] make it easier to know if the kernel exports a particular function

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=19110

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |WONTFIX
                 CC|                            |fche at redhat dot com
             Status|NEW                         |RESOLVED

--- Comment #1 from Frank Ch. Eigler <fche at redhat dot com> ---
to reopen if useful

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