Hi, Currently the perf header information is used only at initial setup time and discarded. If it's saved we could reuse the information for various purpose - for instance, perf kvm stat needs to know cpuid so it had to invent an accessor.
Thanks, Namhyung v4 -> v5: * Use saved cpuid info for perf kvm (David) v3 -> v4: * rename perf_header_info to perf_session_env (Arnaldo) v2 -> v3: * patch 1-3 in v2 merged into tip * rebased on current acme/perf/core v1 -> v2: * not touch EVENT_DESC feature handling * split out struct perf_header_info * simplify multi-string handling * add some cleanup patches Namhyung Kim (6): perf header: Add struct perf_session_env perf header: Add ->process callbacks to most of features perf header: Use pre-processed session env when printing perf header: Remove unused @feat arg from ->process callback perf kvm: Use perf_session_env for reading cpuid perf header: Remove perf_header__read_feature tools/perf/builtin-kvm.c | 10 +- tools/perf/util/header.c | 598 ++++++++++++++++++++++++++++++----------------- tools/perf/util/header.h | 25 +- 3 files changed, 406 insertions(+), 227 deletions(-) -- 1.7.11.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
