From patchwork Tue Jul 30 02:54:27 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Arnaldo Carvalho de Melo X-Patchwork-Id: 1107721 Return-Path: Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C282C433FF for ; Tue, 30 Jul 2019 02:56:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1C6AD20578 for ; Tue, 30 Jul 2019 02:56:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564455400; bh=5LkOgcPDaLCwL5UVlzn70Wlc+nI4zLnqaopdl77+VnM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=sYwb778uf5I24QBZAkMHsWd/BWTamxnpyOONbFsnDsUnkEhjNaAx4KLFw6OLOiasb YeWEhhAL1F2NbSYvm8HJBxOjkUhWCFtuGCE67XOkNmssF+AXHouMB60XfGK25K5w2D sYTsIbXRt5RcGMsJawLr+X1hHvVtsGJlLLgIigkk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731578AbfG3C4j (ORCPT ); Mon, 29 Jul 2019 22:56:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:46182 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731562AbfG3C4d (ORCPT ); Mon, 29 Jul 2019 22:56:33 -0400 Received: from quaco.ghostprotocols.net (unknown [179.97.35.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F376520578; Tue, 30 Jul 2019 02:56:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564455392; bh=5LkOgcPDaLCwL5UVlzn70Wlc+nI4zLnqaopdl77+VnM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VKE4GAT3C+A9w7BxVMa8WivCua9Dt5M86DrU7OktwOQpQ7ZoUwdSH0XrT1sFpmtL2 o0URxevA8roTHFNPBiw1mKUHvyYs6OwwFSoJux1VYMirFt82dtwXIBbQUju60Ea9Y0 nhNJ6UcadCrh1kyhVP+8mWfIM/pDF59KBmTlZChY= From: Arnaldo Carvalho de Melo To: Ingo Molnar , Thomas Gleixner Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , Adrian Hunter , =?utf-8?q?Luis_Cl=C3=A1udio_Gon?= =?utf-8?q?=C3=A7alves?= Subject: [PATCH 004/107] perf trace: Add pointer to BPF object containing __augmented_syscalls__ Date: Mon, 29 Jul 2019 23:54:27 -0300 Message-Id: <20190730025610.22603-5-acme@kernel.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190730025610.22603-1-acme@kernel.org> References: <20190730025610.22603-1-acme@kernel.org> MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnaldo Carvalho de Melo So that we can use it when looking for other components of that object file, such as other programs to add to the BPF_MAP_TYPE_PROG_ARRAY and use with bpf_tail_call(). Cc: Adrian Hunter Cc: Jiri Olsa Cc: Luis Cláudio Gonçalves Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-1ibmz7ouv6llqxajy7m8igtd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-trace.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 4f0bbffee05f..6aa080845a84 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -96,6 +96,7 @@ struct trace { struct perf_evlist *evlist; struct machine *host; struct thread *current; + struct bpf_object *bpf_obj; struct cgroup *cgroup; u64 base_time; FILE *output; @@ -3895,6 +3896,20 @@ int cmd_trace(int argc, const char **argv) if (evsel) { trace.syscalls.events.augmented = evsel; + + evsel = perf_evlist__find_tracepoint_by_name(trace.evlist, "raw_syscalls:sys_enter"); + if (evsel == NULL) { + pr_err("ERROR: raw_syscalls:sys_enter not found in the augmented BPF object\n"); + goto out; + } + + if (evsel->bpf_obj == NULL) { + pr_err("ERROR: raw_syscalls:sys_enter not associated to a BPF object\n"); + goto out; + } + + trace.bpf_obj = evsel->bpf_obj; + trace__set_bpf_map_filtered_pids(&trace); trace__set_bpf_map_syscalls(&trace); }