linux-kernel - [PATCH v4 perf, bpf-next 2/7] sync tools/include/uapi/linux/perf

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Message-ID: <20181219060227.1057679-3-songliubraving@fb.com>
Date:   Tue, 18 Dec 2018 22:02:21 -0800
From:   Song Liu <songliubraving@...com>
To:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC:     Song Liu <songliubraving@...com>, <peterz@...radead.org>,
        <acme@...nel.org>, <ast@...nel.org>, <daniel@...earbox.net>,
        <kernel-team@...com>
Subject: [PATCH v4 perf, bpf-next 2/7] sync tools/include/uapi/linux/perf_event.h

sync changes for PERF_RECORD_KSYMBOL

Signed-off-by: Song Liu <songliubraving@...com>
---
 tools/include/uapi/linux/perf_event.h | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index 9de8780ac8d9..6c9e327e87ed 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -372,7 +372,8 @@ struct perf_event_attr {
 				context_switch :  1, /* context switch data */
 				write_backward :  1, /* Write ring buffer from end to beginning */
 				namespaces     :  1, /* include namespaces data */
-				__reserved_1   : 35;
+				ksymbol        :  1, /* include ksymbol events */
+				__reserved_1   : 34;
 
 	union {
 		__u32		wakeup_events;	  /* wakeup every n events */
@@ -648,11 +649,18 @@ struct perf_event_mmap_page {
  *   PERF_RECORD_MISC_COMM_EXEC  - PERF_RECORD_COMM event
  *   PERF_RECORD_MISC_FORK_EXEC  - PERF_RECORD_FORK event (perf internal)
  *   PERF_RECORD_MISC_SWITCH_OUT - PERF_RECORD_SWITCH* events
+ *   PERF_RECORD_MISC_KSYMBOL_*  - PERF_RECORD_KSYMBOL event
  */
 #define PERF_RECORD_MISC_MMAP_DATA		(1 << 13)
 #define PERF_RECORD_MISC_COMM_EXEC		(1 << 13)
 #define PERF_RECORD_MISC_FORK_EXEC		(1 << 13)
 #define PERF_RECORD_MISC_SWITCH_OUT		(1 << 13)
+
+#define PERF_RECORD_MISC_KSYMBOL_UNREGISTER	(1 << 3)
+#define PERF_RECORD_MISC_KSYMBOL_TYPE_MASK	(7 << 4)
+#define PERF_RECORD_MISC_KSYMBOL_TYPE_UNKNOWN	(0 << 4)
+#define PERF_RECORD_MISC_KSYMBOL_TYPE_BPF	(1 << 4)
+
 /*
  * These PERF_RECORD_MISC_* flags below are safely reused
  * for the following events:
@@ -965,6 +973,19 @@ enum perf_event_type {
 	 */
 	PERF_RECORD_NAMESPACES			= 16,
 
+	/*
+	 * Record ksymbol register/unregister events:
+	 *
+	 * struct {
+	 *	struct perf_event_header	header;
+	 *	u64				addr;
+	 *	u64				len;
+	 *	char				name[];
+	 *	struct sample_id		sample_id;
+	 * };
+	 */
+	PERF_RECORD_KSYMBOL			= 17,
+
 	PERF_RECORD_MAX,			/* non-ABI */
 };
 
-- 
2.17.1