Commit-ID: 65074d43fc77bcae32776724b7fa2696923c78e4
Gitweb: https://git.kernel.org/tip/65074d43fc77bcae32776724b7fa2696923c78e4
Author: Song Liu <songliubraving@xxxxxx>
AuthorDate: Wed, 6 Dec 2017 14:45:13 -0800
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
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@xxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Reviewed-by: Yonghong Song <yhs@xxxxxx>
Reviewed-by: Josef Bacik <jbacik@xxxxxx>
Acked-by: Alexei Starovoitov <ast@xxxxxxxxxx>
Cc: <daniel@xxxxxxxxxxxxx>
Cc: <davem@xxxxxxxxxxxxx>
Cc: <kernel-team@xxxxxx>
Cc: <rostedt@xxxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20171206224518.3598254-4-songliubraving@xxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
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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