From: tip-bot for Song Liu <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: hpa@zytor.com, peterz@infradead.org, jolsa@kernel.org,
daniel@iogearbox.net, linux-kernel@vger.kernel.org,
acme@redhat.com, namhyung@kernel.org, tglx@linutronix.de,
ast@kernel.org, sdf@google.com, mingo@kernel.org,
songliubraving@fb.com
Subject: [tip:perf/urgent] perf bpf: Process PERF_BPF_EVENT_PROG_LOAD for annotation
Date: Fri, 22 Mar 2019 15:43:12 -0700 [thread overview]
Message-ID: <tip-3ca3877a9732b68cf0289367a859f6c163a79bfa@git.kernel.org> (raw)
In-Reply-To: <20190312053051.2690567-14-songliubraving@fb.com>
Commit-ID: 3ca3877a9732b68cf0289367a859f6c163a79bfa
Gitweb: https://git.kernel.org/tip/3ca3877a9732b68cf0289367a859f6c163a79bfa
Author: Song Liu <songliubraving@fb.com>
AuthorDate: Mon, 11 Mar 2019 22:30:49 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 19 Mar 2019 16:52:07 -0300
perf bpf: Process PERF_BPF_EVENT_PROG_LOAD for annotation
This patch adds processing of PERF_BPF_EVENT_PROG_LOAD, which sets
proper DSO type/id/etc of memory regions mapped to BPF programs to
DSO_BINARY_TYPE__BPF_PROG_INFO.
Signed-off-by: Song Liu <songliubraving@fb.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stanislav Fomichev <sdf@google.com>
Cc: kernel-team@fb.com
Link: http://lkml.kernel.org/r/20190312053051.2690567-14-songliubraving@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/bpf-event.c | 54 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c
index a4fc52b4ffae..852e960692cb 100644
--- a/tools/perf/util/bpf-event.c
+++ b/tools/perf/util/bpf-event.c
@@ -12,6 +12,7 @@
#include "machine.h"
#include "env.h"
#include "session.h"
+#include "map.h"
#define ptr_to_u64(ptr) ((__u64)(unsigned long)(ptr))
@@ -25,12 +26,65 @@ static int snprintf_hex(char *buf, size_t size, unsigned char *data, size_t len)
return ret;
}
+static int machine__process_bpf_event_load(struct machine *machine,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused)
+{
+ struct bpf_prog_info_linear *info_linear;
+ struct bpf_prog_info_node *info_node;
+ struct perf_env *env = machine->env;
+ int id = event->bpf_event.id;
+ unsigned int i;
+
+ /* perf-record, no need to handle bpf-event */
+ if (env == NULL)
+ return 0;
+
+ info_node = perf_env__find_bpf_prog_info(env, id);
+ if (!info_node)
+ return 0;
+ info_linear = info_node->info_linear;
+
+ for (i = 0; i < info_linear->info.nr_jited_ksyms; i++) {
+ u64 *addrs = (u64 *)(info_linear->info.jited_ksyms);
+ u64 addr = addrs[i];
+ struct map *map;
+
+ map = map_groups__find(&machine->kmaps, addr);
+
+ if (map) {
+ map->dso->binary_type = DSO_BINARY_TYPE__BPF_PROG_INFO;
+ map->dso->bpf_prog.id = id;
+ map->dso->bpf_prog.sub_id = i;
+ map->dso->bpf_prog.env = env;
+ }
+ }
+ return 0;
+}
+
int machine__process_bpf_event(struct machine *machine __maybe_unused,
union perf_event *event,
struct perf_sample *sample __maybe_unused)
{
if (dump_trace)
perf_event__fprintf_bpf_event(event, stdout);
+
+ switch (event->bpf_event.type) {
+ case PERF_BPF_EVENT_PROG_LOAD:
+ return machine__process_bpf_event_load(machine, event, sample);
+
+ case PERF_BPF_EVENT_PROG_UNLOAD:
+ /*
+ * Do not free bpf_prog_info and btf of the program here,
+ * as annotation still need them. They will be freed at
+ * the end of the session.
+ */
+ break;
+ default:
+ pr_debug("unexpected bpf_event type of %d\n",
+ event->bpf_event.type);
+ break;
+ }
return 0;
}
next prev parent reply other threads:[~2019-03-22 22:43 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-12 5:30 [PATCH v9 perf,bpf 00/15] perf annotation of BPF programs Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 01/15] perf-record: replace option --bpf-event with --no-bpf-event Song Liu
2019-03-22 22:35 ` [tip:perf/urgent] perf record: Replace " tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 02/15] bpf: libbpf: introduce bpf_program__get_prog_info_linear() Song Liu
2019-03-12 13:50 ` Arnaldo Carvalho de Melo
2019-03-22 22:36 ` [tip:perf/urgent] tools lib bpf: Introduce bpf_program__get_prog_info_linear() tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 03/15] bpf: bpftool: use bpf_program__get_prog_info_linear() in prog.c:do_dump() Song Liu
2019-03-22 22:36 ` [tip:perf/urgent] " tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 04/15] perf, bpf: synthesize bpf events with bpf_program__get_prog_info_linear() Song Liu
2019-03-13 21:00 ` Arnaldo Carvalho de Melo
2019-03-13 21:08 ` Arnaldo Carvalho de Melo
2019-03-14 5:08 ` Song Liu
2019-03-14 16:45 ` Song Liu
2019-03-14 18:30 ` Arnaldo Carvalho de Melo
2019-03-22 22:37 ` [tip:perf/urgent] perf bpf: Synthesize " tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 05/15] perf: change prototype of perf_event__synthesize_bpf_events() Song Liu
2019-03-22 22:37 ` [tip:perf/urgent] perf bpf: Make synthesize_bpf_events() receive perf_session pointer instead of perf_tool tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 06/15] perf, bpf: save bpf_prog_info in a rbtree in perf_env Song Liu
2019-03-12 13:10 ` Jiri Olsa
2019-03-12 14:34 ` Arnaldo Carvalho de Melo
2019-03-22 22:38 ` [tip:perf/urgent] perf bpf: Save " tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 07/15] perf, bpf: save bpf_prog_info information as headers to perf.data Song Liu
2019-03-12 13:10 ` Jiri Olsa
2019-03-12 14:47 ` Arnaldo Carvalho de Melo
2019-03-13 19:05 ` Arnaldo Carvalho de Melo
2019-03-22 22:39 ` [tip:perf/urgent] perf bpf: Save " tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 08/15] perf, bpf: save btf in a rbtree in perf_env Song Liu
2019-03-12 15:00 ` Arnaldo Carvalho de Melo
2019-03-22 22:39 ` [tip:perf/urgent] perf bpf: Save BTF " tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 09/15] perf, bpf: save btf information as headers to perf.data Song Liu
2019-03-12 15:14 ` Arnaldo Carvalho de Melo
2019-03-12 15:16 ` Arnaldo Carvalho de Melo
2019-03-12 16:26 ` Song Liu
2019-03-12 17:05 ` Arnaldo Carvalho de Melo
2019-03-12 17:29 ` Song Liu
2019-03-15 19:06 ` Arnaldo Carvalho de Melo
2019-03-15 19:26 ` Arnaldo Carvalho de Melo
2019-03-15 19:31 ` Song Liu
2019-03-15 19:42 ` Arnaldo Carvalho de Melo
2019-03-22 22:40 ` [tip:perf/urgent] perf bpf: Save BTF " tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 10/15] perf-top: add option --no-bpf-event Song Liu
2019-03-22 22:41 ` [tip:perf/urgent] perf top: Add " tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 11/15] perf: add -lopcodes to feature-libbfd Song Liu
2019-03-22 22:41 ` [tip:perf/urgent] perf feature detection: Add " tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 12/15] perf, bpf: enable annotation of bpf program Song Liu
2019-03-18 16:38 ` Arnaldo Carvalho de Melo
2019-03-18 16:43 ` Arnaldo Carvalho de Melo
2019-03-19 6:10 ` Song Liu
2019-03-19 13:37 ` Arnaldo Carvalho de Melo
2019-03-19 6:05 ` Song Liu
2019-03-19 13:37 ` Arnaldo Carvalho de Melo
2019-03-19 13:58 ` Arnaldo Carvalho de Melo
2019-03-19 14:14 ` Arnaldo Carvalho de Melo
2019-03-19 14:52 ` [WORKS!] " Arnaldo Carvalho de Melo
2019-03-19 16:51 ` Song Liu
2019-03-19 16:55 ` Arnaldo Carvalho de Melo
2019-03-19 17:07 ` Arnaldo Carvalho de Melo
2019-03-22 22:42 ` [tip:perf/urgent] perf symbols: Introduce DSO_BINARY_TYPE__BPF_PROG_INFO tip-bot for Song Liu
2019-03-22 22:43 ` [tip:perf/urgent] perf build: Check what binutils's 'disassembler()' signature to use tip-bot for Song Liu
2019-03-22 22:44 ` [tip:perf/urgent] perf annotate: Enable annotation of BPF programs tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 13/15] perf, bpf: process PERF_BPF_EVENT_PROG_LOAD for annotation Song Liu
2019-03-22 22:43 ` tip-bot for Song Liu [this message]
2019-03-12 5:30 ` [PATCH v9 perf,bpf 14/15] perf: introduce side band thread Song Liu
2019-03-22 22:45 ` [tip:perf/urgent] perf evlist: Introduce " tip-bot for Song Liu
2019-03-12 5:30 ` [PATCH v9 perf,bpf 15/15] perf, bpf: save bpf_prog_info and btf of short living bpf programs Song Liu
2019-03-19 15:25 ` Arnaldo Carvalho de Melo
2019-03-22 22:45 ` [tip:perf/urgent] perf tools: Save bpf_prog_info and BTF of new BPF programs tip-bot for Song Liu
2019-03-12 13:12 ` [PATCH v9 perf,bpf 00/15] perf annotation of " Jiri Olsa
2019-03-21 9:10 ` Jiri Olsa
2019-03-21 14:12 ` Arnaldo Carvalho de Melo
-- strict thread matches above, loose matches on Subject: below --
2019-03-07 17:57 [PATCH v7 " Song Liu
2019-03-07 17:57 ` [PATCH v7 perf,bpf 01/15] perf, bpf: consider events with attr.bpf_event as side-band events Song Liu
2019-03-07 17:57 ` [PATCH v7 perf,bpf 02/15] bpf: libbpf: introduce bpf_program__get_prog_info_linear() Song Liu
2019-03-11 18:26 ` Arnaldo Carvalho de Melo
2019-03-11 20:45 ` Daniel Borkmann
2019-03-11 20:57 ` Arnaldo Carvalho de Melo
2019-03-12 11:20 ` Daniel Borkmann
2019-03-07 17:57 ` [PATCH v7 perf,bpf 03/15] bpf: bpftool: use bpf_program__get_prog_info_linear() in prog.c:do_dump() Song Liu
2019-03-07 17:57 ` [PATCH v7 perf,bpf 04/15] perf, bpf: synthesize bpf events with bpf_program__get_prog_info_linear() Song Liu
2019-03-07 17:58 ` [PATCH v7 perf,bpf 05/15] perf: change prototype of perf_event__synthesize_bpf_events() Song Liu
2019-03-07 17:58 ` [PATCH v7 perf,bpf 06/15] perf, bpf: save bpf_prog_info in a rbtree in perf_env Song Liu
2019-03-07 17:58 ` [PATCH v7 perf,bpf 07/15] perf, bpf: save bpf_prog_info information as headers to perf.data Song Liu
2019-03-11 17:56 ` Jiri Olsa
2019-03-11 18:05 ` Song Liu
2019-03-07 17:58 ` [PATCH v7 perf,bpf 08/15] perf, bpf: save btf in a rbtree in perf_env Song Liu
2019-03-07 17:58 ` [PATCH v7 perf,bpf 09/15] perf, bpf: save btf information as headers to perf.data Song Liu
2019-03-11 17:56 ` Jiri Olsa
2019-03-07 17:58 ` [PATCH v7 perf,bpf 10/15] perf-top: add option --no-bpf-event Song Liu
2019-03-07 17:58 ` [PATCH v7 perf,bpf 11/15] perf: add -lopcodes to feature-libbfd Song Liu
2019-03-07 23:26 ` Stanislav Fomichev
2019-03-07 23:47 ` Song Liu
2019-03-07 17:58 ` [PATCH v7 perf,bpf 12/15] perf, bpf: enable annotation of bpf program Song Liu
2019-03-11 17:56 ` Jiri Olsa
2019-03-11 18:04 ` Song Liu
2019-03-07 17:58 ` [PATCH v7 perf,bpf 13/15] perf, bpf: process PERF_BPF_EVENT_PROG_LOAD for annotation Song Liu
2019-03-07 17:58 ` [PATCH v7 perf,bpf 14/15] perf: introduce side band thread Song Liu
2019-03-11 17:57 ` Jiri Olsa
2019-03-07 17:58 ` [PATCH v7 perf,bpf 15/15] perf, bpf: save bpf_prog_info and btf of short living bpf programs Song Liu
2019-03-11 13:59 ` [PATCH v7 perf,bpf 00/15] perf annotation of BPF programs Jiri Olsa
2019-03-11 14:16 ` Song Liu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=tip-3ca3877a9732b68cf0289367a859f6c163a79bfa@git.kernel.org \
--to=tipbot@zytor.com \
--cc=acme@redhat.com \
--cc=ast@kernel.org \
--cc=daniel@iogearbox.net \
--cc=hpa@zytor.com \
--cc=jolsa@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tip-commits@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=sdf@google.com \
--cc=songliubraving@fb.com \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).