[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.3-270-gf1eeccc

[jistone at sourceware dot org]

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- Log -----------------------------------------------------------------
commit f1eeccc8de9c1aa4e43e5a521e007d3017e5f0c9
Author: Josh Stone <jistone@redhat.com>
Date:   Fri Nov 5 14:45:59 2010 -0700

    Make pfiles kneel before the frame-size overlord
    
    In socket_optname, there's an optname_entries mapping array.  On 64-bit,
    each item is 24 bytes, so with 14 entries that's 336 bytes.  That
    doesn't need to be on the stack -- static const it is.

commit 3620fb20885d0beab00641d8c3522e5960d0805b
Author: Josh Stone <jistone@redhat.com>
Date:   Fri Nov 5 12:36:14 2010 -0700

    Add make targets "uprobes" and "install-uprobes"
    
    This builds uprobes.ko in $srcdir and $DESTDIR, respectively,
    because I'm too lazy to type it out all the time.

commit 01a2eba861db8433b2937662193bc876ecd5db5f
Author: Josh Stone <jistone@redhat.com>
Date:   Fri Nov 5 12:16:22 2010 -0700

    PR10821: Remove large stack variables from the unwinder
    
    We tend to use the percpu CONTEXT as a pre-allocated stack, so add the
    large unwinder variable there too.
    
    * runtime/unwind.c (unwind, unwind_frame): Use an unwind_context
      parameter for the larger data needed.
    * runtime/stack-$arch.c (__stp_stack_print): Add the unwind_context
      parameter, and use it for the x86 versions with a dwarf unwinder.
    * runtime/stack.c (_stp_stack_print, _stp_stack_sprint): Add the
      unwind_context parameter and pass it along.
    * translate.cxx (c_unparser::emit_common_header): Add unwind_context the
      the global CONTEXT when we NEED_UNWIND_DATA.
    * tapset/context-unwind.stp (*backtrace): Use CONTEXT->uwcontext.
    * tapset/ucontext-unwind.stp (*backtrace): Use CONTEXT->uwcontext.
    * buildrun.cxx (compile_pass): Tighten the frame warning to 256 bytes.

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

Summary of changes:
 Makefile.am                                     |    6 ++
 Makefile.in                                     |   16 +++-
 buildrun.cxx                                    |    7 +-
 runtime/stack-arm.c                             |    3 +-
 runtime/stack-i386.c                            |   27 +++---
 runtime/stack-ia64.c                            |    3 +-
 runtime/stack-ppc.c                             |    3 +-
 runtime/stack-s390.c                            |    1 +
 runtime/stack-x86_64.c                          |   28 +++---
 runtime/stack.c                                 |   12 ++-
 runtime/unwind.c                                |  102 +++++++++++++----------
 runtime/unwind/i386.h                           |    2 +-
 runtime/unwind/x86_64.h                         |    3 +-
 tapset/context-unwind.stp                       |   10 ++-
 tapset/ucontext-unwind.stp                      |    8 +-
 testsuite/systemtap.examples/process/pfiles.stp |    4 +-
 translate.cxx                                   |    3 +
 17 files changed, 138 insertions(+), 100 deletions(-)


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systemtap: system-wide probe/trace tool