[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-0.9-100-gf400d6e

[jistone at sourceware dot org]

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- Log -----------------------------------------------------------------
commit f400d6e427cb7494d072ad124e7996925015bdf4
Merge: 95635ee8a429033dcb5d63727f0f2cae039a2dfd 381dc4158249cffce8e76a3ea6874a084b41bf26
Author: Josh Stone <jistone@redhat.com>
Date:   Tue Mar 10 15:53:41 2009 -0700

    Merge branch 'typecast'

commit 381dc4158249cffce8e76a3ea6874a084b41bf26
Author: Josh Stone <jistone@redhat.com>
Date:   Tue Mar 10 15:51:09 2009 -0700

    Merge sequential casts in the vfs tapset
    
    A few places in this tapset were using a pattern like this:
      i_sb = @cast(foo, "inode")->i_sb
      return @cast(foo, "super_block")->bar
    
    The type of i_sb is already known, so I just merged this to:
      return @cast(foo, "inode")->i_sb->bar

commit 6351f32433edb111b28362963c97d1cd0d1d8561
Author: Josh Stone <jistone@redhat.com>
Date:   Tue Mar 10 15:46:21 2009 -0700

    PR9932: use @cast module search path
    
    The nfs, rpc, and scsi tapsets use @cast on types that may be compiled
    into a kernel module or into the main kernel binary.  The @cast search
    path separated with colons lets us search both the kernel and the module.
    
    For a couple of cases, I also merged sequential @casts that work just
    fine as a single cast with a multiple-level dereference.

commit abb41d920aecf908a132597f0a4bc26a10e58a7c
Author: Josh Stone <jistone@redhat.com>
Date:   Tue Mar 10 15:32:16 2009 -0700

    PR9932: add @cast module search path
    
    Sometimes @cast()ing can fail if the type needed may or may not be
    defined in a kernel module.  This patch lets @cast take a colon-
    separated list of modules to search for the type definition.
    
    	* tapsets.cxx (dwarf_cast_query): Simplify.  Take the module and
    	the code result as reference parameters, and use code.empty() as
    	the sign that the type isn't resolved yet.
    	(dwarf_cast_expanding_visitor::visit_cast_op): Split e->module by
    	colon into substrings, and loop until the type is resolved.

-----------------------------------------------------------------------

Summary of changes:
 tapset/nfs.stp  |   50 +++++++++++++++------------------------
 tapset/rpc.stp  |   41 +++++++++++---------------------
 tapset/scsi.stp |    4 +-
 tapset/vfs.stp  |   54 +++++++++++++++----------------------------
 tapsets.cxx     |   69 ++++++++++++++++++++++++-------------------------------
 5 files changed, 84 insertions(+), 134 deletions(-)


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systemtap: system-wide probe/trace tool