On Thu, Feb 27, 2014 at 12:46:58PM +0100, Ingo Molnar wrote:
> 
> * Arnaldo Carvalho de Melo <[email protected]> wrote:
> 
> > From: Arnaldo Carvalho de Melo <[email protected]>
> > 
> > Hi Ingo,
> > 
> >     Please consider pulling,
> > 
> > - Arnaldo
> > 
> > The following changes since commit 7e74efcf76c16f851df5c838c143c4a1865ea9fa:
> > 
> >   Merge tag 'perf-core-for-mingo' of 
> > git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core 
> > (2014-02-22 17:26:24 +0100)
> > 
> > are available in the git repository at:
> > 
> > 
> >   git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux 
> > tags/perf-core-for-mingo
> > 
> > for you to fetch changes up to 1029f9fedf87fa6f52096991588fa54ffd159584:
> > 
> >   perf symbols: Check compatible symtab type before loading dso (2014-02-24 
> > 16:25:01 -0300)
> > 
> > ----------------------------------------------------------------
> > perf/core improvements and fixes
> > 
> > . Add support for the new DWARF unwinder library in elfutils (Jiri Olsa)
> > 
> > . Fix build race in the generation of bison files (Jiri Olsa)
> > 
> > . Further streamline the feature detection display, trimming it a bit to
> >   show just the libraries detected, using VF=1 gets a more verbose output,
> >   showing the less interesting feature checks as well (Jiri Olsa).
> > 
> > . Check compatible symtab type before loading dso (Namhyung Kim)
> > 
> > . Check return value of filename__read_debuglink() (Stephane Eranian)
> > 
> > Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
> > 
> > ----------------------------------------------------------------
> > Arnaldo Carvalho de Melo (1):
> >       perf tools: Warn the user about how to enable libunwind support
> > 
> > Jiri Olsa (9):
> >       perf tests: Fix *.o make tests
> >       perf tests: Add pmu-bison.o make test
> >       perf tools: Fix bison OUTPUT directories dependency
> >       perf tools: Factor features display code
> >       perf tools: Add variable display for VF make output
> >       perf tools: Add feature check for libdw dwarf unwind
> >       perf tools: Add libdw DWARF post unwind support
> >       perf tools: Setup default dwarf post unwinder
> >       perf tests: Add NO_LIBDW_DWARF_UNWIND make test
> > 
> > Namhyung Kim (1):
> >       perf symbols: Check compatible symtab type before loading dso
> > 
> > Stephane Eranian (1):
> >       perf symbols: Check return value of filename__read_debuglink()
> > 
> >  tools/perf/Makefile.perf                           |  24 ++-
> >  tools/perf/arch/x86/Makefile                       |   5 +
> >  tools/perf/arch/x86/util/unwind-libdw.c            |  51 +++++
> >  tools/perf/config/Makefile                         | 232 
> > +++++++++++++++------
> >  tools/perf/config/feature-checks/Makefile          |   6 +-
> >  tools/perf/config/feature-checks/test-all.c        |   5 +
> >  .../feature-checks/test-libdw-dwarf-unwind.c       |  13 ++
> >  tools/perf/tests/make                              |  25 ++-
> >  tools/perf/util/dso.c                              |   4 +-
> >  tools/perf/util/symbol-elf.c                       |   2 +
> >  tools/perf/util/symbol.c                           |  61 +++++-
> >  tools/perf/util/unwind-libdw.c                     | 210 
> > +++++++++++++++++++
> >  tools/perf/util/unwind-libdw.h                     |  21 ++
> >  13 files changed, 569 insertions(+), 90 deletions(-)
> >  create mode 100644 tools/perf/arch/x86/util/unwind-libdw.c
> >  create mode 100644 
> > tools/perf/config/feature-checks/test-libdw-dwarf-unwind.c
> >  create mode 100644 tools/perf/util/unwind-libdw.c
> >  create mode 100644 tools/perf/util/unwind-libdw.h
> 
> Pulled, thanks a lot Arnaldo!
> 
> Btw., the build output looks weird now - on a system that used to pass 
> all feature tests there's this output:
> 
>   BUILD:   Doing 'make -j12' parallel build
> config/Makefile:288: No libdw DWARF unwind found, Please install 
> elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR
> 
> Auto-detecting system features:
> ...                         dwarf: [ on  ]
> ...                         glibc: [ on  ]
> ...                          gtk2: [ on  ]
> ...                      libaudit: [ on  ]
> ...                        libbfd: [ on  ]
> ...                        libelf: [ on  ]
> ...                       libnuma: [ on  ]
> ...                       libperl: [ on  ]
> ...                     libpython: [ on  ]
> ...                      libslang: [ on  ]
> ...                     libunwind: [ on  ]
> ...            libdw-dwarf-unwind: [ OFF ]
> ...     DWARF post unwind library: libunwind
> 
> but:
> 
>    Package elfutils-devel-0.156-5.fc19.x86_64 already installed and latest 
> version

forgot.. remote unwind in libdw is supported from version 0.158,
which I guess wasn't updated in FC19 yet

jirka
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