From: Peter Zijlstra <peterz@infradead.org>
To: Song Liu <songliubraving@fb.com>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
acme@kernel.org, ast@kernel.org, daniel@iogearbox.net,
kernel-team@fb.com, dsahern@gmail.com
Subject: Re: [PATCH v10 perf, bpf-next 9/9] bpf: add module name [bpf] to ksymbols for bpf programs
Date: Thu, 17 Jan 2019 14:10:44 +0100 [thread overview]
Message-ID: <20190117131044.GH10486@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20190116162931.1542429-10-songliubraving@fb.com>
On Wed, Jan 16, 2019 at 08:29:31AM -0800, Song Liu wrote:
> With this patch, /proc/kallsyms will show BPF programs as
>
> <addr> t bpf_prog_<tag>_<name> [bpf]
>
> Signed-off-by: Song Liu <songliubraving@fb.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> ---
> kernel/kallsyms.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
> index f3a04994e063..14934afa9e68 100644
> --- a/kernel/kallsyms.c
> +++ b/kernel/kallsyms.c
> @@ -494,7 +494,7 @@ static int get_ksymbol_ftrace_mod(struct kallsym_iter *iter)
>
> static int get_ksymbol_bpf(struct kallsym_iter *iter)
> {
> - iter->module_name[0] = '\0';
> + strlcpy(iter->module_name, "bpf", MODULE_NAME_LEN);
> iter->exported = 0;
> return bpf_get_kallsym(iter->pos - iter->pos_ftrace_mod_end,
> &iter->value, &iter->type,
> --
> 2.17.1
>
prev parent reply other threads:[~2019-01-17 13:11 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-16 16:29 [PATCH v10 perf, bpf-next 0/9] reveal invisible bpf programs Song Liu
2019-01-16 16:29 ` [PATCH v10 perf, bpf-next 1/9] perf, bpf: Introduce PERF_RECORD_KSYMBOL Song Liu
2019-01-17 12:48 ` Peter Zijlstra
2019-01-17 12:56 ` Peter Zijlstra
2019-01-17 14:49 ` Song Liu
2019-01-17 14:58 ` Arnaldo Carvalho de Melo
2019-01-17 15:02 ` Song Liu
2019-01-18 8:38 ` Peter Zijlstra
2019-01-18 8:41 ` Peter Zijlstra
2019-01-16 16:29 ` [PATCH v10 perf, bpf-next 2/9] sync tools/include/uapi/linux/perf_event.h Song Liu
2019-01-16 16:29 ` [PATCH v10 perf, bpf-next 3/9] perf, bpf: introduce PERF_RECORD_BPF_EVENT Song Liu
2019-01-17 13:09 ` Peter Zijlstra
2019-01-17 13:49 ` Song Liu
2019-01-16 16:29 ` [PATCH v10 perf, bpf-next 4/9] sync tools/include/uapi/linux/perf_event.h Song Liu
2019-01-16 16:29 ` [PATCH v10 perf, bpf-next 5/9] perf util: handle PERF_RECORD_KSYMBOL Song Liu
2019-01-16 16:29 ` [PATCH v10 perf, bpf-next 6/9] perf util: handle PERF_RECORD_BPF_EVENT Song Liu
2019-01-16 16:29 ` [PATCH v10 perf, bpf-next 7/9] perf tools: synthesize PERF_RECORD_* for loaded BPF programs Song Liu
2019-01-16 16:29 ` [PATCH v10 perf, bpf-next 8/9] perf top: Synthesize BPF events for pre-existing " Song Liu
2019-01-16 16:29 ` [PATCH v10 perf, bpf-next 9/9] bpf: add module name [bpf] to ksymbols for bpf programs Song Liu
2019-01-17 13:10 ` Peter Zijlstra [this message]
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