Hi Masami, On Tue, 04 Nov 2014 14:44:28 +0900, Masami Hiramatsu wrote: > (2014/11/04 12:14), Namhyung Kim wrote: >> Hi Masami, >> >> On Fri, 31 Oct 2014 14:51:29 -0400, Masami Hiramatsu wrote: >>> So by using all of them, we can make an "event cache" file on all >>> functions (except for inlined functions) as below. >>> >>> # perf probe --max-probes=100000 --no-inlines -a '* $params' -o >>> event.cache >>> >>> builds "event.cache" file in which event settings for >>> all function entries, like below; >>> >>> p:probe/reset_early_page_tables _text+12980741 >>> p:probe/copy_bootdata _text+12980830 real_mode_data=%di:u64 >>> p:probe/exit_amd_microcode _text+14692680 >>> p:probe/early_make_pgtable _text+12981274 address=%di:u64 >>> p:probe/x86_64_start_reservations _text+12981700 real_mode_data=%di:u64 >>> p:probe/x86_64_start_kernel _text+12981744 real_mode_data=%di:u64 >>> p:probe/reserve_ebda_region _text+12982117 >> >> Does this event cache support kernel modules too? AFAIK it can have a >> different address whenever loaded even on a same kernel. > > Yes, for the modules perf probe uses target function symbol directly instead > of _text. > > ---- > perf probe -m xfs -o - -q -a xfs_acl_exists > p:probe/xfs_acl_exists xfs:xfs_acl_exists+0 > ----
Ah, great! :) Thanks, Namhyung -- 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/
