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 8FAC5212550; Wed, 9 Sep 2026 00:55:02 +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=1788915302; cv=none; b=qOKGW/LY2dTpGVaOgRqtaYFkQpbSBsTiQdNPGVY46gMJi+0O9FBRC1Ypo+kYF1sLhmOYC4p+YuIFOTS+RTVFleQ3XG4ZL4bL5evYBxQoGLINStOm507SGgceTJnaOsHAAJWd36Ycd1bL7t9GXeHjPf2HJpElnnXwBKvSzZqJ7jY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788915302; c=relaxed/simple; bh=quH97pzV1CtXlnKeUyBN5rKrZ5ibIEYYlVcGld/HXrU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=k9AM46Jcw1j+jOZZIoWtt3F/hu/cemUJYy4QeqEhZdWNgPVy6FXLVZer9hiCJ7BxxpAF4rYm301LsH83e6WosM4pdHKhi7a66VvENnuqfCd8ZQ4+ZellH9ho85SXggLRWqHlTrIWKdiILYHLI4Q6ICPkQlYl7aZEBUB6kHv5UAI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=QCSyCowq; 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="QCSyCowq" Received: by smtp.kernel.org (Postfix) with ESMTPS id 26891C2BCFC; Wed, 9 Sep 2026 00:55:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1788915302; bh=quH97pzV1CtXlnKeUyBN5rKrZ5ibIEYYlVcGld/HXrU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=QCSyCowqQnCXTC/6izUL74mGb4hy/OiU9MYmp5W5Dj+1uIT7UMdh08Nmx0vCNB5BU 4zp+cFZOaD9ZAOStGOIJuvHVtwhqw+1BcKc74omHkTkLMEOY3zsBAUdaSFZ/V0YTD2 mvI+kYdkqlg74fRp2DD8V5+wg6cA5ILNpaQcPjbcG7fltlq/doiYiS/ePSa/PQVwGe rVIsDL/olbp+knjz55QIZGOwRY0rxncF2tUjit7oaIULuXaWBBsZAShtHKTbKgPYqj SbobFB5FOa3GcCbuaqDn56bppV6j3puuthyyZu9vJ10oo2RKcHhPX/JIUPd5sQlHzt NK+OZPFhZrRsQ== 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 0691FC79F82; Wed, 9 Sep 2026 00:55:02 +0000 (UTC) From: Jim Cromie via B4 Relay Date: Tue, 08 Sep 2026 18:54:58 -0600 Subject: [PATCH v9 02/39] vmlinux.lds.h: refactor BOUNDED_SECTION_* macros into bounded_sections.lds.h Precedence: bulk X-Mailing-List: linux-arch@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: <20260908-dd-cmap-part2-clean-v9-2-3a3f621f4a10@gmail.com> References: <20260908-dd-cmap-part2-clean-v9-0-3a3f621f4a10@gmail.com> In-Reply-To: <20260908-dd-cmap-part2-clean-v9-0-3a3f621f4a10@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 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=1788915300; l=4249; i=jim.cromie@gmail.com; s=20260203; h=from:subject:message-id; bh=DmN3dQkizTo0tooZt8HHaXhkTJxaFppBGFefz+LuWYE=; b=v7N4ha2YuF2EaPsTpnFBCyDESLqVEHui4ve968E1pMxtWBUW9vP35HewzhIHjASQh0kqZbfh7 6zWWsK1X4xADzaL/lzV8SwCyi4Pp11A8p4q/ouShe2MF8TwyHdKii8w 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) -- 2.55.0