From: Jiri Olsa <jolsa@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>
Cc: linux-perf-users@vger.kernel.org, netdev@vger.kernel.org,
bpf@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
Ian Rogers <irogers@google.com>
Subject: [PATCH perf/core 2/5] libbpf: Load prog's instructions after prog_prepare_load_fn callback
Date: Fri, 22 Apr 2022 12:00:22 +0200 [thread overview]
Message-ID: <20220422100025.1469207-3-jolsa@kernel.org> (raw)
In-Reply-To: <20220422100025.1469207-1-jolsa@kernel.org>
We can have changed instructions after calling
prog_prepare_load_fn callback, reload them.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/lib/bpf/libbpf.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 284790d81c1b..c8df74e5f658 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -6695,6 +6695,8 @@ static int bpf_object_load_prog_instance(struct bpf_object *obj, struct bpf_prog
prog->name, err);
return err;
}
+ insns = prog->insns;
+ insns_cnt = prog->insns_cnt;
}
if (obj->gen_loader) {
--
2.35.1
next prev parent reply other threads:[~2022-04-22 10:00 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-22 10:00 [PATCH perf/core 0/5] perf tools: Fix prologue generation Jiri Olsa
2022-04-22 10:00 ` [PATCH perf/core 1/5] libbpf: Add bpf_program__set_insns function Jiri Olsa
2022-04-25 16:22 ` Daniel Borkmann
2022-04-26 6:19 ` Jiri Olsa
2022-04-26 6:19 ` Andrii Nakryiko
2022-04-26 6:57 ` Jiri Olsa
2022-04-26 15:58 ` Andrii Nakryiko
2022-04-27 8:42 ` Jiri Olsa
2022-04-27 18:47 ` Andrii Nakryiko
2022-04-22 10:00 ` Jiri Olsa [this message]
2022-04-22 10:00 ` [PATCH perf/core 3/5] perf tools: Move libbpf init in libbpf_init function Jiri Olsa
2022-04-22 17:03 ` Arnaldo Carvalho de Melo
2022-04-25 7:25 ` Jiri Olsa
2022-04-26 6:21 ` Andrii Nakryiko
2022-04-22 10:00 ` [PATCH perf/core 4/5] perf tools: Register perfkprobe libbpf section handler Jiri Olsa
2022-04-26 6:22 ` Andrii Nakryiko
2022-04-26 6:58 ` Jiri Olsa
2022-04-22 10:00 ` [PATCH perf/core 5/5] perf tools: Rework prologue generation code Jiri Olsa
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