From patchwork Wed Oct 18 12:29:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alan Maguire X-Patchwork-Id: 13426974 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 D4DEE347C7 for ; Wed, 18 Oct 2023 12:30:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="qQdorI1Q" Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 70503A3 for ; Wed, 18 Oct 2023 05:30:02 -0700 (PDT) Received: from pps.filterd (m0246629.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 39IBJWip017456; Wed, 18 Oct 2023 12:29:42 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=corp-2023-03-30; bh=bytAvguS1Z0gWAu7TmhxZ7lZvlSwRDTczlmteUBI5HI=; b=qQdorI1QWTCo6+hSiWyzokvMuKl6rpvwzvLtp/Xl0yxwBtfHrm0y8HIqqY4zGGAfZ5Mt CgCzmmmkwDkb2nVw6nWntuw+awX8zG5ExwZo2BJs8RHFtfeeRDw26UwN9dxOnPxjQY4q P4OZs3A7KiN4T1Dretd2IQJmi8OBky3+m1V5sm6jxv7cJlJVq4Btrr0prVj54TmBR39s flWCazaxUgX64f5I2ytyZ4s8deleRjUem4bBFYxpdc1VHawHSA/bR/0hA9Wkds+365UP JSJb5AebDMq1PXcTvjRfqKmrMCu0pxVS83y75BS3WdJQ7SDTOe44jkjcVJ5V++l2klB5 8g== Received: from iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta01.appoci.oracle.com [130.35.100.223]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3tqjy1fbxt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 18 Oct 2023 12:29:42 +0000 Received: from pps.filterd (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 39IB6vJs040556; Wed, 18 Oct 2023 12:29:40 GMT Received: from pps.reinject (localhost [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 3trfynp8ja-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 18 Oct 2023 12:29:40 +0000 Received: from iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 39ICTUEW034930; Wed, 18 Oct 2023 12:29:40 GMT Received: from bpf.uk.oracle.com (dhcp-10-175-178-90.vpn.oracle.com [10.175.178.90]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTP id 3trfynp8bs-3; Wed, 18 Oct 2023 12:29:39 +0000 From: Alan Maguire To: acme@kernel.org, andrii.nakryiko@gmail.com Cc: jolsa@kernel.org, ast@kernel.org, daniel@iogearbox.net, eddyz87@gmail.com, martin.lau@linux.dev, song@kernel.org, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, mykolal@fb.com, bpf@vger.kernel.org, Alan Maguire , Andrii Nakryiko Subject: [PATCH v3 dwarves 2/5] dwarves: move ARRAY_SIZE() to dwarves.h Date: Wed, 18 Oct 2023 13:29:23 +0100 Message-Id: <20231018122926.735416-3-alan.maguire@oracle.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20231018122926.735416-1-alan.maguire@oracle.com> References: <20231018122926.735416-1-alan.maguire@oracle.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-10-18_11,2023-10-18_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=808 adultscore=0 phishscore=0 spamscore=0 suspectscore=0 malwarescore=0 bulkscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2310180103 X-Proofpoint-GUID: oOGDRR0z_3fvIJ47huc-NSHsfMN_83HP X-Proofpoint-ORIG-GUID: oOGDRR0z_3fvIJ47huc-NSHsfMN_83HP X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net ...so it can be used by pahole.c too. Signed-off-by: Alan Maguire Acked-by: Jiri Olsa Acked-by: Andrii Nakryiko --- dwarves.c | 16 ---------------- dwarves.h | 16 ++++++++++++++++ 2 files changed, 16 insertions(+), 16 deletions(-) diff --git a/dwarves.c b/dwarves.c index 218367b..9f97eda 100644 --- a/dwarves.c +++ b/dwarves.c @@ -2094,22 +2094,6 @@ int cus__load_file(struct cus *cus, struct conf_load *conf, _min1 < _min2 ? _min1 : _min2; }) #endif -/* Force a compilation error if condition is true, but also produce a - result (of value 0 and type size_t), so the expression can be used - e.g. in a structure initializer (or where-ever else comma expressions - aren't permitted). */ -#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); })) - -/* Are two types/vars the same type (ignoring qualifiers)? */ -#ifndef __same_type -# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) -#endif - -/* &a[0] degrades to a pointer: a different type from an array */ -#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) - -#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) - #ifndef DW_LANG_C89 #define DW_LANG_C89 0x0001 #endif diff --git a/dwarves.h b/dwarves.h index db68161..857b37c 100644 --- a/dwarves.h +++ b/dwarves.h @@ -19,6 +19,22 @@ #include "list.h" #include "rbtree.h" +/* Force a compilation error if condition is true, but also produce a + result (of value 0 and type size_t), so the expression can be used + e.g. in a structure initializer (or where-ever else comma expressions + aren't permitted). */ +#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); })) + +/* Are two types/vars the same type (ignoring qualifiers)? */ +#ifndef __same_type +# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) +#endif + +/* &a[0] degrades to a pointer: a different type from an array */ +#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) + +#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) + struct cu; enum load_steal_kind {