From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 7840A47209D; Tue, 13 Oct 2026 02:36:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791858998; cv=none; b=KBy0vzWyfpqv2KehprUWToZ7p+McOnPaZFxqqPfLgEqzPxPA0186IU1caK8BTMRhOylwjzK+/QW/9PpT+w9rQC4PtLHvWQ5uVP9suxJUxMXXEMa7mx24/8F4cIJyQuzSkn99k7m1FYu3GYn4rDgY17RTTG0JXG2ygCKgXVf78tE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791858998; c=relaxed/simple; bh=lwKPfRvPiEoqp6grP5U2rEmV9LHXxEqHpKxBf13aYJk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=K5Pc39l0T7VNceZ+QQ2DvyyIfD3+HOO2/rhr5YKtQs2ROZQjnx7cHREKXHT4hP79jsnsm1n+Dm3qxWv5uhP482rNomWyD9ZSqYZO21uZc9kpOiVcSHd7qCAD5+kgmPSO2QvJNxuRAx4s2tKTu+mHRzH3HyLgaR6xaUQFvVSyTjg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=q2vr6VR4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="q2vr6VR4" Received: by smtp.kernel.org (Postfix) with ESMTPS id E8727C2BCFA; Tue, 13 Oct 2026 02:36:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1791858998; bh=lwKPfRvPiEoqp6grP5U2rEmV9LHXxEqHpKxBf13aYJk=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=q2vr6VR49lpX6ttu6FELxp8tw44pf9g5wcObZrtSjeven4JGaCaRlpM0aDuW714t+ yfZ6anqrlD2pQz1JlsnUsqAem2gZFnt+sJZ8747HN7BvJ64ih5E+exPUyDhD0h+8xc 0VzSUCo44O/HUikDuI1/VG9HoBvmOKrgKOQ4TnHW9Pxcba2A0TLOQzPmojmmfsVGGa TAj2ht/nB8nZADuisZ+0szh5w9LdeTYQVpuC5X5D7DcmcvurGgseqwCistl+9zxxM0 9SkKClpGZXhIrAn5X4hFEvnrNReQijTQQUhSU89EIQHJe6VvmiQjvwdHeLJhf4FhvU NXfAeiUvgiJOw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id C589FCC6B01; Tue, 13 Oct 2026 02:36:37 +0000 (UTC) From: Jim Cromie via B4 Relay Date: Mon, 12 Oct 2026 20:36:33 -0600 Subject: [PATCH v12 02/40] 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: <20261012-dd-cmap-part2-clean-v12-2-3c8cc5725def@gmail.com> References: <20261012-dd-cmap-part2-clean-v12-0-3c8cc5725def@gmail.com> In-Reply-To: <20261012-dd-cmap-part2-clean-v12-0-3c8cc5725def@gmail.com> To: Jason Baron , Shuah Khan , Andrew Morton , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Arnd Bergmann , Luis Chamberlain , Petr Pavlu , Daniel Gomez , Sami Tolvanen , Aaron Tomlin , Jonathan Corbet , Greg Kroah-Hartman , Nathan Chancellor , Nicolas Schier , Shuah Khan , Randy Dunlap , "Rafael J. Wysocki" , Pavel Machek , Len Brown , Jonathan Corbet , Petr Mladek , Steven Rostedt , John Ogness , Sergey Senozhatsky , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arch@vger.kernel.org, linux-modules@vger.kernel.org, linux-doc@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-pm@vger.kernel.org, Jim Cromie X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1791858995; l=4249; i=jim.cromie@gmail.com; s=20260203; h=from:subject:message-id; bh=IfyJDb7+5IpRdexBxlsmGvn/hmtnbKQYugc2kC3D/aw=; b=k13GuyqP0iHa5NTQGx7il/o45vP4ocuInEfbmk2KThfD1BoP4SHee4Gho5qLXNTb6SnR7xwDm lhTlw0Qfb6tBgVK7B4x1GYopwm6hIwKktSVZGLCPS0COzUC9q6GIygU X-Developer-Key: i=jim.cromie@gmail.com; a=ed25519; pk=C6E5ODlPQo7ZBynATXH9wg7K6HxP0pIXyf4s38Qw0XE= X-Endpoint-Received: by B4 Relay for jim.cromie@gmail.com/20260203 with auth_id=958 X-Original-From: Jim Cromie Reply-To: jim.cromie@gmail.com From: Jim Cromie 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 b2988aa12f66..b4ece391f7b1 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) -- 2.56.0