Hi, This is a repost of RFC [1], rebased on 4.7-rc1, to print pretty PMU lacking overflow interrupt support if user tries perf sampling. At the time of RFC review, both PeterZ and Vince seemed convinced to go ahead with this patch despite the ABI change [2]. Thx, -Vineet [1] http://lists.infradead.org/pipermail/linux-snps-arc/2016-May/001014.html [2] http://lists.infradead.org/pipermail/linux-snps-arc/2016-May/001032.html Vineet Gupta (2): tools/perf: Handle EOPNOTSUPP for sampling events perf/core: change errno for sampling event not supported in hardware kernel/events/core.c | 2 +- tools/perf/util/evsel.c | 7 +++++++ 2 files changed, 8 insertions(+), 1 deletion(-) -- 2.5.0
