This is the mail archive of the systemtap-cvs@sourceware.org mailing list for the systemtap project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-0.8-378-g37d42f2


This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "systemtap: system-wide probe/trace tool".

The branch, master has been updated
       via  37d42f2a8792be9c25a71b2ad6b4c55252a1b204 (commit)
       via  23ad66b41ded81502948584816390c634f66c5ee (commit)
       via  482fe2af17347b472232c5d7c4b26e53606e395e (commit)
       via  c4ce66a13b44386263ede8ac13924d666b69d53e (commit)
       via  f80d90043cf900dc6027329a61489444d7ab4ee3 (commit)
       via  c24447be6017725800336e2a8a4836e3f58fdfe9 (commit)
       via  9b5af2958a35174a67076c0f27cff0ed5950736d (commit)
      from  9b9b56ea063b6eea422a6d772bd49469e3eec649 (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.

- Log -----------------------------------------------------------------
commit 37d42f2a8792be9c25a71b2ad6b4c55252a1b204
Merge: 23ad66b41ded81502948584816390c634f66c5ee 9b9b56ea063b6eea422a6d772bd49469e3eec649
Author: Josh Stone <jistone@redhat.com>
Date:   Wed Feb 18 13:37:04 2009 -0800

    Merge branch 'master' of sourceware.org:/git/systemtap

commit 23ad66b41ded81502948584816390c634f66c5ee
Merge: 2aa2ccb83142c3bf98ac8ee1558a0ee72dff3a1f 482fe2af17347b472232c5d7c4b26e53606e395e
Author: Josh Stone <jistone@redhat.com>
Date:   Wed Feb 18 12:53:08 2009 -0800

    Enable typecasting with @cast
    
        println(@cast(myptr, "task_struct")->pid)
        println(@cast(myptr, "task_struct", "kernel")->pid)
    
    Merge branch 'typecast', bump ChangeLog entries to push date

commit 482fe2af17347b472232c5d7c4b26e53606e395e
Author: Josh Stone <jistone@redhat.com>
Date:   Tue Feb 17 19:19:48 2009 -0800

    Bump copyright years to 2009

commit c4ce66a13b44386263ede8ac13924d666b69d53e
Author: Josh Stone <jistone@redhat.com>
Date:   Tue Feb 17 18:15:06 2009 -0800

    Enable dwarf expansion of @casts
    
    This will iterate over the module and its CUs looking for the type
    definition, and then work with loc2c to dereference the pointer.
    
    * loc2c.c (c_translate_argument): Create a dummy location to start
    the address computation from a function parameter.
    * translate.cxx (base_query, dwarf_query): Move some members from
    base_query to dwarf_query, so the former can be more generic.  Also
    add a constructor using a module string instead of probe parameters.
    (dwflpp::query_modules, dwflpp::iterate_over_modules): Use a generic
    base_query instead of a dwarf_query.
    (dwarf_cast_query): New query to scan the modules and CUs for a
    matching type definition, and then produce a code fragment to deref
    each component.
    (dwarf_cast_expanding_visitor): Tries to replace @casts with a function
    call to the result of a dwarf_cast_query.
    (dwflpp::declaration_resolve): Search by name instead of by die.
    (dwflpp::translate_components): Use the incoming vardie as the first
    type die, so we don't assume that attr_mem has a DW_AT_type already.
    (dwflpp::literal_stmt_for_pointer): Construct a C fragment that starts
    with a pointer argument (THIS->pointer) and dereferences each member
    component from there.
    (*_derived_probe::register_patterns): Take a session parameter instead
    of a match_node, so we can manipulate session-wide data.
    (dwarf_derived_probe::register_patterns): Add a session code filter to
    expand @casts with a dwarf_cast_expanding_visitor.

commit f80d90043cf900dc6027329a61489444d7ab4ee3
Author: Josh Stone <jistone@redhat.com>
Date:   Wed Feb 11 15:28:41 2009 -0800

    Enable session-wide code filtering
    
    This will be used to hook to dwarf_builder to all functions and probes
    so it can attempt @cast expansion.
    
    * session.h (systemtap_session): Add a vector of update_visitors
    that will act as filters for all probes and functions.
    * elaborate.cxx (semantic_pass_symbols): Run probes and functions
    through each registered code filter.

commit c24447be6017725800336e2a8a4836e3f58fdfe9
Author: Josh Stone <jistone@redhat.com>
Date:   Wed Feb 11 14:43:24 2009 -0800

    Provide dwarf module names as defaults in @cast()s
    
    * tapsets.cxx (dwarf_var_expanding_visitor::visit_cast_op):  While
    expanding dwarf probes, provide the current module as a default to
    @casts without a module name.

commit 9b5af2958a35174a67076c0f27cff0ed5950736d
Author: Josh Stone <jistone@redhat.com>
Date:   Wed Feb 11 14:34:32 2009 -0800

    Add high-level support for @cast()ing
    
    This handles all of the parsing, traversal, and optimization.  It
    doesn't actually resolve the cast yet though.
    
    * staptree.h (struct cast_op, visitor::visit_cast_op): New.
    * staptree.cxx (cast_op::print/visit, various visitor::visit_cast_op's):
    Incorporate cast_op into the basic tree operations.
    * parse.cxx (parser::parse_symbol): Parse @cast operator with an
    expression operand, type string, and optional module string.
    * translate.cxx (c_unparser::visit_cast_op): Error out if a @cast
    survives to translation.
    * elaborate.cxx (typeresolution_info::visit_cast_op): Error out if a
    @cast survives to type resolution.
    (symbol_fetcher::visit_cast_op): treat @casts as a symbol target
    (void_statement_reducer::visit_cast_op): unused @casts can be discarded,
    but the operand should still be evaluated.

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

Summary of changes:
 ChangeLog     |   53 ++++++++
 elaborate.cxx |   39 ++++++-
 elaborate.h   |    3 +-
 loc2c.c       |   37 ++++++
 loc2c.h       |   15 +++
 parse.cxx     |   51 ++++++++-
 session.h     |    7 +-
 staptree.cxx  |   66 ++++++++++-
 staptree.h    |   17 +++-
 tapsets.cxx   |  376 +++++++++++++++++++++++++++++++++++++++++++++++++++------
 translate.cxx |   10 ++-
 11 files changed, 631 insertions(+), 43 deletions(-)


hooks/post-receive
--
systemtap: system-wide probe/trace tool


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]