From nobody Sun Feb 8 13:28:09 2026 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.2]) (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 159A43148BB; Wed, 31 Dec 2025 09:27:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.2 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767173236; cv=none; b=akPeCBamkcRx2BUpSQTk5VommXk4PNTi75C4uCjRRZMsuUzNPwN8XaBtaeMbx8nbHDULZT0aUXh2hzlOXOJAp4XrJfZDUuBqLnlKvTgh2hIyOe3r+Edc6wriZx32SW6LFhnMY69K/0qRk8KlVjmIcG8V8ueRl5q49DdVyfokvWE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767173236; c=relaxed/simple; bh=9LxLsh02Vy/g5YOUTV15374a1Ei5630xJVV7KbX4zVA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=swVenP0AWztIsYRu35di3cPkL8TpCIwCsptc42jtQRFGXKJCJMNOuElA1BTnldyHFpRYNn5Q1hQiXccSQHvY4FhGBzLn/2khR9R5MT3fdoTctwgUw1V+m6FpS47LLYvR1jMT0r47UBDaOV3PzHKkZ3oqGiueDbO3fOaSsaGn8vQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=XHaoivZS; arc=none smtp.client-ip=220.197.31.2 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="XHaoivZS" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=mk ltplsVVF60w10La+HRFzXUxVsRO5LSUW4Tcv6dnoE=; b=XHaoivZS+g0VQz0frt FapckDiv2D9CrXEEBUWlhSIdUUANJ5OmJqLPaYBEnBe3sJjZHho1oXEogNnGQguc mZsw7Nf04aRhB9tNKsG1ONQZK/o51p/L4z3sLImCO8knij1gkwYA7LDZfJbMLgXa 6Nh5d+jGBzQsVt3KcsCu5fIHo= Received: from localhost.localdomain.localdomain (unknown []) by gzga-smtp-mtada-g0-0 (Coremail) with SMTP id _____wBXfgkX7FRpPHO3DQ--.25326S2; Wed, 31 Dec 2025 17:25:44 +0800 (CST) From: WanLi Niu To: Quentin Monnet Cc: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , WanLi Niu , Menglong Dong , bpf@vger.kernel.org, linux-kernel@vger.kernel.org, WanLi Niu , Menglong Dong Subject: [PATCH bpf-next] bpftool: Make skeleton C++ compatible with explicit casts Date: Wed, 31 Dec 2025 17:25:41 +0800 Message-Id: <20251231092541.3352-1-kiraskyler@163.com> X-Mailer: git-send-email 2.39.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: _____wBXfgkX7FRpPHO3DQ--.25326S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7AF4xZw1UGF18GryrCry5CFg_yoW8Gry8pF 4rG347trW3Jr45Aay0gw4rXrW5Wws3Aw40kFWkAa4DZrsavryvqr47tF1jga43XF1jkayY v3ZakFyjvwnrArJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0zi75r7UUUUU= X-CM-SenderInfo: 5nlut2pn1ov2i6rwjhhfrp/xtbC+BmwDWlU7BnymgAA38 Content-Type: text/plain; charset="utf-8" From: WanLi Niu Fix C++ compilation errors in generated skeleton by adding explicit pointer casts and using integer subtraction for offset calculation. error: invalid conversion from 'void*' to 'trace_bpf*' [-fpermissive] | skel =3D skel_alloc(sizeof(*skel)); | ~~~~~~~~~~^~~~~~~~~~~~~~~ | | | void* error: invalid use of 'void' | skel->ctx.sz =3D (void *)&skel->links - (void *)skel; Signed-off-by: WanLi Niu Co-developed-by: Menglong Dong Signed-off-by: Menglong Dong --- tools/bpf/bpftool/gen.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/bpf/bpftool/gen.c b/tools/bpf/bpftool/gen.c index 993c7d9484a4..71446a776130 100644 --- a/tools/bpf/bpftool/gen.c +++ b/tools/bpf/bpftool/gen.c @@ -731,10 +731,10 @@ static int gen_trace(struct bpf_object *obj, const ch= ar *obj_name, const char *h { \n\ struct %1$s *skel; \n\ \n\ - skel =3D skel_alloc(sizeof(*skel)); \n\ + skel =3D (struct trace_bpf *)skel_alloc(sizeof(*skel));\n\ if (!skel) \n\ goto cleanup; \n\ - skel->ctx.sz =3D (void *)&skel->links - (void *)skel; \n\ + skel->ctx.sz =3D (__u64)&skel->links - (__u64)skel; \n\ ", obj_name, opts.data_sz); bpf_object__for_each_map(map, obj) { --=20 2.39.1