From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98E4DC433E9 for ; Fri, 26 Feb 2021 20:50:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7272E64F24 for ; Fri, 26 Feb 2021 20:50:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230135AbhBZUuQ (ORCPT ); Fri, 26 Feb 2021 15:50:16 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:1918 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230090AbhBZUuP (ORCPT ); Fri, 26 Feb 2021 15:50:15 -0500 Received: from pps.filterd (m0109333.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 11QKkRqH032068 for ; Fri, 26 Feb 2021 12:49:35 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=3WLpjNkYBbX5Z0SIzIESrvA3KpE6uH4D14GksN/VsUI=; b=IfHAmwvUe/zFu/4hCAomPeanPRpgbaePhgvALlJRq8MteXuAhVoNzAVcTSrk1YjZom7e 6yXEm8WmXIm5IBH9ZKL+XvpiuYz9QgjkeRJZ1Envhwfke6a/fhhoaCNaMgrJ7e9ac+TI qtDDRLjMmVrpHGa+s72MNFsCbbV2jvC8SDg= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 36xd17s14q-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 26 Feb 2021 12:49:35 -0800 Received: from intmgw002.06.ash9.facebook.com (2620:10d:c085:108::8) by mail.thefacebook.com (2620:10d:c085:11d::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Fri, 26 Feb 2021 12:49:34 -0800 Received: by devbig003.ftw2.facebook.com (Postfix, from userid 128203) id 060B03705324; Fri, 26 Feb 2021 12:49:32 -0800 (PST) From: Yonghong Song To: CC: Alexei Starovoitov , Cong Wang , Daniel Borkmann , , Andrii Nakryiko Subject: [PATCH bpf-next v5 10/12] bpftool: print subprog address properly Date: Fri, 26 Feb 2021 12:49:31 -0800 Message-ID: <20210226204931.3885458-1-yhs@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20210226204920.3884074-1-yhs@fb.com> References: <20210226204920.3884074-1-yhs@fb.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.761 definitions=2021-02-26_09:2021-02-26,2021-02-26 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 malwarescore=0 clxscore=1015 priorityscore=1501 adultscore=0 mlxscore=0 phishscore=0 bulkscore=0 mlxlogscore=646 impostorscore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2102260155 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org With later hashmap example, using bpftool xlated output may look like: int dump_task(struct bpf_iter__task * ctx): ; struct task_struct *task =3D ctx->task; 0: (79) r2 =3D *(u64 *)(r1 +8) ; if (task =3D=3D (void *)0 || called > 0) ... 19: (18) r2 =3D subprog[+17] 30: (18) r2 =3D subprog[+25] ... 36: (95) exit __u64 check_hash_elem(struct bpf_map * map, __u32 * key, __u64 * val, struct callback_ctx * data): ; struct bpf_iter__task *ctx =3D data->ctx; 37: (79) r5 =3D *(u64 *)(r4 +0) ... 55: (95) exit __u64 check_percpu_elem(struct bpf_map * map, __u32 * key, __u64 * val, void * unused): ; check_percpu_elem(struct bpf_map *map, __u32 *key, __u64 *val, void *= unused) 56: (bf) r6 =3D r3 ... 83: (18) r2 =3D subprog[-47] Acked-by: Andrii Nakryiko Signed-off-by: Yonghong Song --- tools/bpf/bpftool/xlated_dumper.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/bpf/bpftool/xlated_dumper.c b/tools/bpf/bpftool/xlated= _dumper.c index 8608cd68cdd0..6fc3e6f7f40c 100644 --- a/tools/bpf/bpftool/xlated_dumper.c +++ b/tools/bpf/bpftool/xlated_dumper.c @@ -196,6 +196,9 @@ static const char *print_imm(void *private_data, else if (insn->src_reg =3D=3D BPF_PSEUDO_MAP_VALUE) snprintf(dd->scratch_buff, sizeof(dd->scratch_buff), "map[id:%u][0]+%u", insn->imm, (insn + 1)->imm); + else if (insn->src_reg =3D=3D BPF_PSEUDO_FUNC) + snprintf(dd->scratch_buff, sizeof(dd->scratch_buff), + "subprog[%+d]", insn->imm); else snprintf(dd->scratch_buff, sizeof(dd->scratch_buff), "0x%llx", (unsigned long long)full_imm); --=20 2.24.1