Messages in this thread |  | | Date | Thu, 27 Feb 2014 12:46:58 +0100 | From | Ingo Molnar <> | Subject | Re: [GIT PULL 00/12] perf/core improvements and fixes |
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* Arnaldo Carvalho de Melo <acme@infradead.org> wrote:
> From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> > > 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 <acme@redhat.com> > > ---------------------------------------------------------------- > 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
Also, the information content of this line is unclear to me:
... DWARF post unwind library: libunwind
what does that line want to tell?
Thanks,
Ingo
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