Messages in this thread Patch in this message | | | Date | Tue, 6 Feb 2018 03:52:32 -0800 | From | tip-bot for Song Liu <> | Subject | [tip:perf/core] perf/core: Prepare perf_event.h for new types: 'perf_kprobe' and 'perf_uprobe' |
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Commit-ID: 65074d43fc77bcae32776724b7fa2696923c78e4 Gitweb: https://git.kernel.org/tip/65074d43fc77bcae32776724b7fa2696923c78e4 Author: Song Liu <songliubraving@fb.com> AuthorDate: Wed, 6 Dec 2017 14:45:13 -0800 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Tue, 6 Feb 2018 10:18:04 +0100
perf/core: Prepare perf_event.h for new types: 'perf_kprobe' and 'perf_uprobe'
Two new perf types, perf_kprobe and perf_uprobe, will be added to allow creating [k,u]probe with perf_event_open. These [k,u]probe are associated with the file decriptor created by perf_event_open(), thus are easy to clean when the file descriptor is destroyed.
kprobe_func and uprobe_path are added to union config1 for pointers to function name for kprobe or binary path for uprobe.
kprobe_addr and probe_offset are added to union config2 for kernel address (when kprobe_func is NULL), or [k,u]probe offset.
Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Yonghong Song <yhs@fb.com> Reviewed-by: Josef Bacik <jbacik@fb.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: <daniel@iogearbox.net> Cc: <davem@davemloft.net> Cc: <kernel-team@fb.com> Cc: <rostedt@goodmis.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20171206224518.3598254-4-songliubraving@fb.com Signed-off-by: Ingo Molnar <mingo@kernel.org> --- include/uapi/linux/perf_event.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index c77c9a2..5d49cfc 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -380,10 +380,14 @@ struct perf_event_attr { __u32 bp_type; union { __u64 bp_addr; + __u64 kprobe_func; /* for perf_kprobe */ + __u64 uprobe_path; /* for perf_uprobe */ __u64 config1; /* extension of config */ }; union { __u64 bp_len; + __u64 kprobe_addr; /* when kprobe_func == NULL */ + __u64 probe_offset; /* for perf_[k,u]probe */ __u64 config2; /* extension of config1 */ }; __u64 branch_sample_type; /* enum perf_branch_sample_type */
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