From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f47.google.com (mail-ot1-f47.google.com [209.85.210.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1FF3343B6E0 for ; Tue, 21 Jul 2026 20:57:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.47 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784667442; cv=none; b=RJWOkQeoRFDCglrpTgGBbhsh9L9dc/sZE/kZxsL7TY7sp+pAUg/gilq57naYVKsd5WzzNrLguL5T1Kbr8EGPRhaZLoSOcAyZ/AoeoKitySOOT9EU0hfHz9I9SgiaIhTdBffJFftwsh3koG3v1SheY6ynwOYNwk1XXWQjzvrn8Ew= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784667442; c=relaxed/simple; bh=0NmENmK0/2sRvdDIHaL4q/g343CMSJD/KWi2ZY5I1ss=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=llYwh08eVChaAROBMjXgwxmBneWYw5rocZeGpQ8WJq8k/QhpfMs6L6bfDdJRlMawv/1Gg2pt4rGYL0SXwixc0yhUnOIfXqHj94FJaLshDBOPW9B37KbdYq3vfeFG7bVjkyL3QhSJZ6ejP183L5be7uxQgHTosuN63AkbLdLGeEs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=RZdQ3TYr; arc=none smtp.client-ip=209.85.210.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="RZdQ3TYr" Received: by mail-ot1-f47.google.com with SMTP id 46e09a7af769-7e6b5737bb2so9194661a34.1 for ; Tue, 21 Jul 2026 13:57:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1784667438; x=1785272238; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=y4NFPrNHM8NGh27YAZAj6cHMKoI1eI/0WdJe3lAHUCg=; b=RZdQ3TYrt2asR3y8HNoRVZI/dObbtdbBx0QRiJgpI7AEFaVHw9zA7WDbgegfhQNgrf ntC8KGJNUIeUwS0nGHB8cXxEN9gIxOXoFn8ebv3GzXTljBZZtIIkt+7V+bsR4g37tj51 XYkxGQA8CadCkojXoTmBt+q7fY3A6pqGVof+l3bFqsumIfzRTK7+8Dsx61xnKrIUmrWM mkpUsTbJejGXK7obbsppVLvnU1+niuemGECH0SZuoabq1JldhRdJKMxZWVr8wV1pjM6r 0svRdGXrH7fwd0oDrSSReBHL615oBKKdeSynOeMm2an96VqY0dnyWWu5dvaGwXa/nxmY FqcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784667438; x=1785272238; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=y4NFPrNHM8NGh27YAZAj6cHMKoI1eI/0WdJe3lAHUCg=; b=HVO6NuOwsdrPiPcVidg0JvsT/a/NufFLM1aZgbsATJK9XRXOIq6ZFnckmVfOjBPWcY 7nib1QpU1iWFXd1efthBucC325UfTIxRqfEGfiDgUsrKz+f63APDZYg7Vgs7Kc67/jMB glKz5HOQ5+rSrIouYrKpX14z90aUbL00pxVmtPfrmE1KcJAbAdg7mcjz3vd+yonEGpmY fYepM2VEOEg8uIrzW7BaTjUBxlKEUkBhqcUczyup6pfuG+wTO2t0acydoU0l7Y34l7X7 KwuDecV2FMlV3w0RUqlpxbeqoVpmv3loytFj11KUl5Khr0UdpJA3C5PUgrsgsUaDmdSc QmMw== X-Gm-Message-State: AOJu0Yw9IfJSGELgC4CJttSBTG2zLbOyt3zeoStkIHLHc5DvtsSBK1y3 IG2yJuN7MDSMW6jC7pd81wanPVfxJduaZhH+ocvI6i6D67iDx5UHPR0a X-Gm-Gg: AfdE7cnzdx1T9ef5BBSM4Ht3T77GRnPcUoP6a2yXN0yJLMgUv1tCPJ1VmloScdqKnyj 8ZNIMaZnPQS8wtZTcJsit2dPWnHyugVvgH3PtHRQ1JwRg4BDIH/9CRbEgBwKhmx7B2SW5Omz7Qe 51CgVREOvuKXs7CertZYYKVauiQqMqaGHEmiQptqqNHn1o8hhLPAov+N/UZeyd6BDc5JvHb1dT/ AVYrPwB7AVPYE0szzmiKVSDCHP0zomWXSYsDErGbY5hTuVHbBoybeDY5LeUar303fplMwuaAArv m4fG1HP3MmfCzcKpWt80cR6Je6GOe+qOZeUcIXh6DvMs3XxNPgWrVL5R0LNsAGq+1DPcE8EWmIp c4XmChyLY9u686Ci4qQiIuciMh4mmXIQ+QypUznWnX4DRx8UxSB/ldlxlycZdI68BPOtb2CPz5P EZN7/U0Uj/Ddd/v0kbMgS8i4Db8pnZ159c4xszfFJOtUMppx4BVA4PqWTV/D1f/sFg98AjaTdJv TfbXaLTef6CgkYM6epq/CNB9Q== X-Received: by 2002:a05:6830:64c9:b0:7eb:3af8:8c09 with SMTP id 46e09a7af769-7ed9aa576edmr11770945a34.3.1784667438495; Tue, 21 Jul 2026 13:57:18 -0700 (PDT) Received: from [192.168.0.245] (c-98-38-17-99.hsd1.co.comcast.net. [98.38.17.99]) by smtp.googlemail.com with ESMTPSA id 46e09a7af769-7edaf94a494sm11134501a34.13.2026.07.21.13.57.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Jul 2026 13:57:18 -0700 (PDT) From: Jim Cromie Date: Tue, 21 Jul 2026 14:56:55 -0600 Subject: [PATCH v7 06/29] vmlinux.lds.h: refactor BOUNDED_SECTION_* macros into bounded_sections.lds.h Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260721-dd-maint-2-v7-6-010fbe73b311@gmail.com> References: <20260721-dd-maint-2-v7-0-010fbe73b311@gmail.com> In-Reply-To: <20260721-dd-maint-2-v7-0-010fbe73b311@gmail.com> To: Andrew Morton , Jason Baron , Greg Kroah-Hartman , Shuah Khan , Simona Vetter , Luis Chamberlain , Petr Pavlu Cc: linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arch@vger.kernel.org, linux-modules@vger.kernel.org, linux-kselftest@vger.kernel.org, Jim Cromie , Arnd Bergmann X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1784667429; l=4249; i=jim.cromie@gmail.com; s=20260203; h=from:subject:message-id; bh=0NmENmK0/2sRvdDIHaL4q/g343CMSJD/KWi2ZY5I1ss=; b=dJWJ27WqUk8fONxl4JaK5ZSZie5CaNJLzGVkKtYbqjvEm+5q2H9asVwQDtieoqiRI55uEdi9S E+ydmXc7WnKD6vkFx0yr6fOfmwtMO4X4a3Xyg1ysvv/m8KPsCPRGU3z X-Developer-Key: i=jim.cromie@gmail.com; a=ed25519; pk=C6E5ODlPQo7ZBynATXH9wg7K6HxP0pIXyf4s38Qw0XE= Move BOUNDED_SECTION_* macros to a new helper file: include/asm-generic/bounded_sections.lds.h and include it back into vmlinux.lds.h. This allows its reuse later to fix a failure to keep dyndbg sections in some circumstances. NOTES: These macros are only for use in vmlinux.lds.h, where the _start & _end symbols are needed. Modules keep sections separate in ELF sections, with their boundaries known, so the _start and _end are not useful, and may confuse tools not expecting them. This patch ignores a checkpatch warning, because new file is covered by "GENERIC INCLUDE/ASM HEADER FILES" in MAINTAINERS CC: Arnd Bergmann CC: linux-arch@vger.kernel.org Signed-off-by: Jim Cromie --- v3: move include to top --- include/asm-generic/bounded_sections.lds.h | 36 ++++++++++++++++++++++++++++++ include/asm-generic/vmlinux.lds.h | 31 +------------------------ 2 files changed, 37 insertions(+), 30 deletions(-) diff --git a/include/asm-generic/bounded_sections.lds.h b/include/asm-generic/bounded_sections.lds.h new file mode 100644 index 000000000000..8c29293ca7fb --- /dev/null +++ b/include/asm-generic/bounded_sections.lds.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#ifndef _ASM_GENERIC_BOUNDED_SECTIONS_H +#define _ASM_GENERIC_BOUNDED_SECTIONS_H + +#define BOUNDED_SECTION_PRE_LABEL(_sec_, _label_, _BEGIN_, _END_) \ + _BEGIN_##_label_ = .; \ + KEEP(*(_sec_)) \ + _END_##_label_ = .; + +#define BOUNDED_SECTION_POST_LABEL(_sec_, _label_, _BEGIN_, _END_) \ + _label_##_BEGIN_ = .; \ + KEEP(*(_sec_)) \ + _label_##_END_ = .; + +#define BOUNDED_SECTION_BY(_sec_, _label_) \ + BOUNDED_SECTION_PRE_LABEL(_sec_, _label_, __start, __stop) + +#define BOUNDED_SECTION(_sec) BOUNDED_SECTION_BY(_sec, _sec) + +#define HEADERED_SECTION_PRE_LABEL(_sec_, _label_, _BEGIN_, _END_, _HDR_) \ + _HDR_##_label_ = .; \ + KEEP(*(.gnu.linkonce.##_sec_)) \ + BOUNDED_SECTION_PRE_LABEL(_sec_, _label_, _BEGIN_, _END_) + +#define HEADERED_SECTION_POST_LABEL(_sec_, _label_, _BEGIN_, _END_, _HDR_) \ + _label_##_HDR_ = .; \ + KEEP(*(.gnu.linkonce.##_sec_)) \ + BOUNDED_SECTION_POST_LABEL(_sec_, _label_, _BEGIN_, _END_) + +#define HEADERED_SECTION_BY(_sec_, _label_) \ + HEADERED_SECTION_PRE_LABEL(_sec_, _label_, __start, __stop) + +#define HEADERED_SECTION(_sec) HEADERED_SECTION_BY(_sec, _sec) + +#endif /* _ASM_GENERIC_BOUNDED_SECTIONS_H */ diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 5659f4b5a125..f5ddf31b7f26 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -50,6 +50,7 @@ * [__nosave_begin, __nosave_end] for the nosave data */ +#include #include #ifndef LOAD_OFFSET @@ -211,36 +212,6 @@ # endif #endif -#define BOUNDED_SECTION_PRE_LABEL(_sec_, _label_, _BEGIN_, _END_) \ - _BEGIN_##_label_ = .; \ - KEEP(*(_sec_)) \ - _END_##_label_ = .; - -#define BOUNDED_SECTION_POST_LABEL(_sec_, _label_, _BEGIN_, _END_) \ - _label_##_BEGIN_ = .; \ - KEEP(*(_sec_)) \ - _label_##_END_ = .; - -#define BOUNDED_SECTION_BY(_sec_, _label_) \ - BOUNDED_SECTION_PRE_LABEL(_sec_, _label_, __start, __stop) - -#define BOUNDED_SECTION(_sec) BOUNDED_SECTION_BY(_sec, _sec) - -#define HEADERED_SECTION_PRE_LABEL(_sec_, _label_, _BEGIN_, _END_, _HDR_) \ - _HDR_##_label_ = .; \ - KEEP(*(.gnu.linkonce.##_sec_)) \ - BOUNDED_SECTION_PRE_LABEL(_sec_, _label_, _BEGIN_, _END_) - -#define HEADERED_SECTION_POST_LABEL(_sec_, _label_, _BEGIN_, _END_, _HDR_) \ - _label_##_HDR_ = .; \ - KEEP(*(.gnu.linkonce.##_sec_)) \ - BOUNDED_SECTION_POST_LABEL(_sec_, _label_, _BEGIN_, _END_) - -#define HEADERED_SECTION_BY(_sec_, _label_) \ - HEADERED_SECTION_PRE_LABEL(_sec_, _label_, __start, __stop) - -#define HEADERED_SECTION(_sec) HEADERED_SECTION_BY(_sec, _sec) - #ifdef CONFIG_TRACE_BRANCH_PROFILING #define LIKELY_PROFILE() \ BOUNDED_SECTION_BY(_ftrace_annotated_branch, _annotated_branch_profile) -- 2.55.0