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 234694EBAE9; Sat, 5 Sep 2026 18:13:40 +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=1788632020; cv=none; b=ui9falwtmHyCKsfNbefHGYVPSyLAoriVQ1a3goEftoqJTpvHA9EgYKx70FuMTWHSYrsjjEG18JcipqYzhuOfhMQGlgXH2Ow/ALSyHS8vhj+ecCbhzKXikr7Ir+LMmsmfds2KmT6qQxwNuKxf8s+uNRGUHB/92kr2B7Wa1F9/maU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788632020; c=relaxed/simple; bh=quH97pzV1CtXlnKeUyBN5rKrZ5ibIEYYlVcGld/HXrU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Cb1d32WWfOb0N7cncO2J7mau4WNMuTIA6G4MLohMGX3mfCP4exwDZJX6sCGo/9EpFFpe4qsiLyuL6sGjznCpfmS7brfU1hQcAyvsjhE/jakzO1yGpSG1Pvf2WRIufhp2rJOvxupq9JS3pcUr51jmkbHNihJFxA7a2cq+1Ej86BU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PRYFYo/b; 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="PRYFYo/b" Received: by smtp.kernel.org (Postfix) with ESMTPS id B6331C4AF0F; Sat, 5 Sep 2026 18:13:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1788632019; bh=quH97pzV1CtXlnKeUyBN5rKrZ5ibIEYYlVcGld/HXrU=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=PRYFYo/b2z6ZEvZkbOZoVZ4ND9+UpXZt4xZgYLsP/QvnsM1bjJu0FXn9m5nGElwFu M9l/u3i7o2mYPBDm9i1AqkN+3TnUA7Fsaj25/NsDltwIuUiLGtfMFsJisEJ03+TVKJ hjnxGfSmameI1zEp+2GBoqc7umQpa+aOLvAbrK75otsbjCs1nsiJNw/AgG5L1/lYFs p+Ta8ZjhnsaRCcdgSx7OJorVxvp1OG1nwdU0m89FQ995Ng0aL5Xzlp5NrbDRiZTKaV N7ohT032DF6b3vzV8A89zmQLoSPKPwsERyZJnpklV/6E02kYKVvnsiNeHAwl5xaTRt bXv46oHYkVISA== 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 9E207C79F98; Sat, 5 Sep 2026 18:13:39 +0000 (UTC) From: Jim Cromie via B4 Relay Date: Sat, 05 Sep 2026 12:13:19 -0600 Subject: [PATCH v8 05/43] 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: <20260905-dd-cmap-part2-clean-v8-5-a4cc0674f6fd@gmail.com> References: <20260905-dd-cmap-part2-clean-v8-0-a4cc0674f6fd@gmail.com> In-Reply-To: <20260905-dd-cmap-part2-clean-v8-0-a4cc0674f6fd@gmail.com> To: Jason Baron , Shuah Khan , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Arnd Bergmann , Luis Chamberlain , Petr Pavlu , Daniel Gomez , Sami Tolvanen , Aaron Tomlin , Andrew Morton , Jonathan Corbet , Shuah Khan , Greg Kroah-Hartman , Nathan Chancellor , Nicolas Schier 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, Jim Cromie X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1788632017; l=4249; i=jim.cromie@gmail.com; s=20260203; h=from:subject:message-id; bh=DmN3dQkizTo0tooZt8HHaXhkTJxaFppBGFefz+LuWYE=; b=aUe9Eq10wpwruJeyDEfdJ2NrMi2A5rzuF5Fz+WjIoy54VvyCrF5nHPdEtcNyL6mWIVvwDTWEe YGd8EVfIwYsCZEzBszRM6z0i0n7xmzW0pr6MYVZh/ZpxaJ+6o3AV7La 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