From nobody Sun Feb 8 15:01:34 2026 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.2]) (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 54A3622156B; Wed, 31 Dec 2025 10:30:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.2 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767177056; cv=none; b=iOWS8RIvUOPwWsaZkuIjcb5yvsFds8gtIotfOIh9JRci5XMcA9Gnkt5fFn1saqItpc31yEQyACXIz3+qrQW547T7ct2PammXCLH62udHw+KBiIuMP/ZlOvI1HMN7iFBd93WQa8P3KpScEEjpz9+kaPGFsv0Iqf4XcgxSryfI6vc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767177056; c=relaxed/simple; bh=E6GOEO7OGWN8uTZkd4DoD7PX8Vgwk68cu0WdvGQw1rE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=AnBrR5G6XCc82ZQL0tEMPFcBjct7BfrKpogRgYoBhoxtkvR7diEMAb472vHn4VE/MkGJQh0z4OPVifvxk7c/Uyt2vI07QbCeyxyRz94iYLP9/CQ40BSPyNX0+AhB0GDmlBDaQlUnAxwVAku+zUs1y251HEQoaDCKbEyiB6sxyAk= 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=Vt13nKVR; arc=none smtp.client-ip=117.135.210.2 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="Vt13nKVR" 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=q+ vF4e852W0iY+2nPmQMBu1d7MpMGG3WuLSgVe2U48E=; b=Vt13nKVRgIrN+80PNH 4pDaBRnD0oqkeCjrNyL151KbqvBIBD3QTdjlq2aZ+0Xwb9m3FAWR00ARLf4A8M9I FoGLuDOGKYvvCItI8pKHGdkdU2Og/DY/iZuvahV1DjbLBj3H3KuDrR18eSUDYo6n 6BsNXZF35Xm0fBurLzdwyslHA= Received: from localhost.localdomain.localdomain (unknown []) by gzsmtp2 (Coremail) with SMTP id PSgvCgA3krsW+1Rpf+csKw--.18719S2; Wed, 31 Dec 2025 18:29:43 +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 v2 bpf-next] bpftool: Make skeleton C++ compatible with explicit casts Date: Wed, 31 Dec 2025 18:29:29 +0800 Message-Id: <20251231102929.3843-1-kiraskyler@163.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20251231092541.3352-1-kiraskyler@163.com> References: <20251231092541.3352-1-kiraskyler@163.com> 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: PSgvCgA3krsW+1Rpf+csKw--.18719S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7AF4xZw1UGF18GryrCry5CFg_yoW8Gr43pF 4rG347trW3Jr45Aay0gw4rXrW5Wws3Aw40kFWkAa4DZrsavryvqw47tF1jga43XF1jkayY v3ZakFy0vw1DArJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0zEtkuxUUUUU= X-CM-SenderInfo: 5nlut2pn1ov2i6rwjhhfrp/xtbC9xdzz2lU+xfSTQAA3S 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$s *skel; \n\ \n\ - skel =3D skel_alloc(sizeof(*skel)); \n\ + skel =3D (struct %1$s *)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