From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D8F0F4690; Thu, 25 Jul 2024 02:16:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.189 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721873782; cv=none; b=U4UOK2jvc7tzP3LEx6d/iL5srLJvczHWCAnlXYa06gjBT0DzqvC2/8BERlWThrmdZFYb9KqXInGs29fHy2DHCLW/otf7AbQhFMuoxXgCte2WzPYOfeiImIm/FK+vtdIv0Z4ySVD6mBa60QRSNu4HImMqCCzfFirQUeXHAPYU2ic= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721873782; c=relaxed/simple; bh=BB3GboFitawlrEaYLgZRHevIANxaCt7nCtA+dfku0ak=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=iqQFSJUvNCwr8IyM1oyAKl9+eZiU82bck2i697j6IzzKnfl2Z3E2PfhMNpNB9S/jlsJi9rC7/zXhjKjJXjTsyDG1KVXUGrf6dj/t7iMxFVfV3IQXqLjtwBpfbtuw5x8hrSlC+poRnyX+JsqJJBPgzzHx9tdpdKqsDqLO2HhsXtM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.189 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.162.254]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4WTvXQ5fQ8zQms0; Thu, 25 Jul 2024 10:12:06 +0800 (CST) Received: from kwepemd100011.china.huawei.com (unknown [7.221.188.204]) by mail.maildlp.com (Postfix) with ESMTPS id B08E1180105; Thu, 25 Jul 2024 10:16:18 +0800 (CST) Received: from M910t.huawei.com (10.110.54.157) by kwepemd100011.china.huawei.com (7.221.188.204) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Thu, 25 Jul 2024 10:16:17 +0800 From: Changbin Du To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Nathan Chancellor CC: Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , "Liang, Kan" , Nick Desaulniers , Bill Wendling , Justin Stitt , , , , Hui Wang , Changbin Du Subject: [PATCH v6 3/8] perf: disasm: use build_id_path if fallback failed Date: Thu, 25 Jul 2024 10:15:44 +0800 Message-ID: <20240725021549.880167-4-changbin.du@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240725021549.880167-1-changbin.du@huawei.com> References: <20240725021549.880167-1-changbin.du@huawei.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemd100011.china.huawei.com (7.221.188.204) If we can not fallback for special dso (vmlinx and vdso), use the build_id_path found previously. Signed-off-by: Changbin Du --- tools/perf/util/disasm.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/tools/perf/util/disasm.c b/tools/perf/util/disasm.c index 0ece6e06da6f..6af9fbec3a95 100644 --- a/tools/perf/util/disasm.c +++ b/tools/perf/util/disasm.c @@ -1176,15 +1176,21 @@ static int dso__disassemble_filename(struct dso *dso, char *filename, size_t fil return fallback_filename(dso, filename, filename_size); if (dso__is_kcore(dso) || dso__is_vdso(dso)) - return fallback_filename(dso, filename, filename_size); + goto fallback; - if (read_buildid_linkname(filename, linkname, sizeof(linkname) - 1) || - strstr(linkname, DSO__NAME_KALLSYMS) || strstr(linkname, DSO__NAME_VDSO)) { - return fallback_filename(dso, filename, filename_size); + if (!read_buildid_linkname(filename, linkname, sizeof(linkname) - 1) && + (!strstr(linkname, DSO__NAME_KALLSYMS) && !strstr(linkname, DSO__NAME_VDSO))) { + /* It's not kallsysms or vdso, use build_id path found above */ + goto out; } - if (dso__binary_type(dso) == DSO_BINARY_TYPE__NOT_FOUND) - dso__set_binary_type(dso, DSO_BINARY_TYPE__BUILD_ID_CACHE); +fallback: + if (fallback_filename(dso, filename, filename_size)) { + /* if fallback failed, use build_id path found above */ +out: + if (dso__binary_type(dso) == DSO_BINARY_TYPE__NOT_FOUND) + dso__set_binary_type(dso, DSO_BINARY_TYPE__BUILD_ID_CACHE); + } return 0; } -- 2.34.1