[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.2-117-gf3b5366

[jistone at sourceware dot org]

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commit f3b5366d0a5d6c746eaf5e7596e3c439c48c2f51
Author: Josh Stone <jistone@redhat.com>
Date:   Wed May 5 16:47:19 2010 -0700

    PR11556: Support array indexing on @cast pointers
    
    It's a bit of a special case, because we don't have a pointer DIE for
    the named type in @cast expressions.  However, we can read the element
    size manually and still simulate an array access.
    
    * loc2c.c (pointer_stride): New, factored out of array_stride.
      (c_translate_array_pointer): New, performs the pointer math based on
      the element size of the pointee type.
    * dwflpp.cxx (dwflpp::translate_components): Take a starting component.
      (dwflpp::literal_stmt_for_pointer): If the initial type is not already
      a pointer or array, we can fake an array access on the input pointer.
    * testsuite/semok/cast.stp: Add an array access test on a @cast.
    * testsuite/systemtap.base/cast.stp: Ditto.
    * testsuite/systemtap.base/cast.exp: Ditto.

commit 6ce303b8edeb90514f7423bebc95fcee21414ce0
Author: Josh Stone <jistone@redhat.com>
Date:   Wed May 5 15:52:55 2010 -0700

    Straighten out die/attr use in dwflpp translation
    
    It was confusing (to me) what was the expected state of each die_mem and
    attr_mem passed around in dwflpp translation.  I've changed it now so
    that we pass just a vardie and typedie, which I think is clearer.  This
    is also nicer for @cast where we don't have any attr for the initial
    type.
    
    * dwflpp.cxx (dwarf_die_type): Helper to get the type, throw on error.
      (dwflpp::translate_components): Just update a vardie and typedie.
      (dwflpp::translate_final_fetch_or_store): Use a vardie and typedie.
      (dwflpp::resolve_unqualified_inner_typedie): Update dies, not attrs.
      (dwflpp::literal_stmt_for_local): Update calls to above.
      (dwflpp::literal_stmt_for_return): Ditto.
      (dwflpp::literal_stmt_for_pointer): Ditto.

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

Summary of changes:
 dwflpp.cxx                        |  236 +++++++++++++++++--------------------
 dwflpp.h                          |   26 ++--
 loc2c.c                           |   83 +++++++++----
 loc2c.h                           |    6 +
 testsuite/semok/cast.stp          |    3 +
 testsuite/systemtap.base/cast.exp |    1 +
 testsuite/systemtap.base/cast.stp |    7 +
 7 files changed, 198 insertions(+), 164 deletions(-)


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