hi, adding support for decompression *.xz objects. However I'm not sure the way we have now is optimal. For example the annotation does not work on compressed modules at the moment.
Currently we detect 'supported' suffixes for kernel modules and update the dso::symtab_type. This info then triggers decompression of the object when we need the its file descriptor in symsrc__init. I'm thinking of some generic encapsulation of the decompression, because it's clearly needed on more places (annotation). I'll try to come up with som patches, but wanted to hear some ideas first. Current work available at: git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git perf/lzma thanks, jirka Signed-off-by: Jiri Olsa <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Josh Stone <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> --- Jiri Olsa (3): perf tools: Update symtab_type with _KMODULE_COMP perf tools: Add feature check for lzma library perf tools: Add lzma decompression support for kernel module tools/perf/Makefile.perf | 8 +++++++- tools/perf/config/Makefile | 15 ++++++++++++-- tools/perf/config/feature-checks/Makefile | 6 +++++- tools/perf/config/feature-checks/test-lzma.c | 9 +++++++++ tools/perf/util/dso.c | 3 +++ tools/perf/util/lzma.c | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ tools/perf/util/machine.c | 9 ++++++++- tools/perf/util/util.h | 4 ++++ 8 files changed, 144 insertions(+), 5 deletions(-) create mode 100644 tools/perf/config/feature-checks/test-lzma.c create mode 100644 tools/perf/util/lzma.c -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
