From: Jim Cromie <jim.cromie@gmail.com>
To: "Arnd Bergmann" <arnd@arndb.de>,
"Jason Baron" <jbaron@akamai.com>,
"Luis Chamberlain" <mcgrof@kernel.org>,
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Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-modules@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kselftest@vger.kernel.org,
dri-devel@lists.freedesktop.org,
intel-gfx@lists.freedesktop.org, amd-gfx@lists.freedesktop.org,
virtualization@lists.linux.dev, intel-xe@lists.freedesktop.org,
nouveau@lists.freedesktop.org,
spice-devel@lists.freedesktop.org,
linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org,
linux-rockchip@lists.infradead.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-renesas-soc@vger.kernel.org,
etnaviv@lists.freedesktop.org, Jim Cromie <jim.cromie@gmail.com>
Subject: [PATCH v14 02/92] vmlinux.lds.h: move BOUNDED_SECTION_* macros to reuse later
Date: Thu, 23 Apr 2026 14:53:43 -0600 [thread overview]
Message-ID: <20260423-submit-dyndbg-classmap-foundation-v14-2-2b809a8019d0@gmail.com> (raw)
In-Reply-To: <20260423-submit-dyndbg-classmap-foundation-v14-0-2b809a8019d0@gmail.com>
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 future problem with modules
failing to keep dyndbg sections in some circumstances.
NB: this ignores a checkpatch warning, because new file is covered by
GENERIC INCLUDE/ASM HEADER FILES
CC: Arnd Bergmann <arnd@arndb.de>
CC: linux-arch@vger.kernel.org
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
include/asm-generic/bounded_sections.lds.h | 38 ++++++++++++++++++++++++++++++
include/asm-generic/vmlinux.lds.h | 32 +------------------------
2 files changed, 39 insertions(+), 31 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..43e79603d4af
--- /dev/null
+++ b/include/asm-generic/bounded_sections.lds.h
@@ -0,0 +1,38 @@
+/* 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_) \
+ . = ALIGN(8); \
+ _BEGIN_##_label_ = .; \
+ KEEP(*(_sec_)) \
+ _END_##_label_ = .;
+
+#define BOUNDED_SECTION_POST_LABEL(_sec_, _label_, _BEGIN_, _END_) \
+ . = ALIGN(8); \
+ _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 db38f52035f3..acb4aadd74da 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -211,37 +211,7 @@
# endif
#endif
-#define BOUNDED_SECTION_PRE_LABEL(_sec_, _label_, _BEGIN_, _END_) \
- . = ALIGN(8); \
- _BEGIN_##_label_ = .; \
- KEEP(*(_sec_)) \
- _END_##_label_ = .;
-
-#define BOUNDED_SECTION_POST_LABEL(_sec_, _label_, _BEGIN_, _END_) \
- . = ALIGN(8); \
- _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)
+#include <asm-generic/bounded_sections.lds.h>
#ifdef CONFIG_TRACE_BRANCH_PROFILING
#define LIKELY_PROFILE() \
--
2.53.0
next prev parent reply other threads:[~2026-04-23 20:54 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-23 20:53 [PATCH v14 00/92] dyndbg: enable 0-off-cost for all of __drm_debug Jim Cromie
2026-04-23 20:53 ` [PATCH v14 01/92] dyndbg: fix NULL ptr on i386 due to section mis-alignment Jim Cromie
2026-04-23 20:53 ` Jim Cromie [this message]
2026-04-23 20:53 ` [PATCH v14 03/92] dyndbg.lds.S: fix lost dyndbg sections in modules Jim Cromie
2026-04-23 20:53 ` [PATCH v14 04/92] vmlinux.lds.h: drop unused HEADERED_SECTION* macros Jim Cromie
2026-04-23 20:53 ` [PATCH v14 05/92] dyndbg: factor ddebug_match_desc out from ddebug_change Jim Cromie
2026-04-23 20:53 ` [PATCH v14 06/92] dyndbg: add stub macro for DECLARE_DYNDBG_CLASSMAP Jim Cromie
2026-04-23 20:53 ` [PATCH v14 07/92] docs/dyndbg: update examples \012 to \n Jim Cromie
2026-04-23 20:53 ` [PATCH v14 08/92] docs/dyndbg: explain flags parse 1st Jim Cromie
2026-04-23 20:53 ` [PATCH v14 09/92] test-dyndbg: fixup CLASSMAP usage error Jim Cromie
2026-04-23 20:53 ` [PATCH v14 10/92] dyndbg: reword "class unknown," to "class:_UNKNOWN_" Jim Cromie
2026-04-23 20:53 ` [PATCH v14 11/92] dyndbg: make ddebug_class_param union members same size Jim Cromie
2026-04-23 20:53 ` [PATCH v14 12/92] dyndbg: drop NUM_TYPE_ARRAY Jim Cromie
2026-04-23 20:53 ` [PATCH v14 13/92] dyndbg: tweak pr_fmt to avoid expansion conflicts Jim Cromie
2026-04-23 20:53 ` [PATCH v14 14/92] dyndbg: reduce verbose/debug clutter Jim Cromie
2026-04-23 20:53 ` [PATCH v14 15/92] dyndbg: refactor param_set_dyndbg_classes and below Jim Cromie
2026-04-23 20:53 ` [PATCH v14 16/92] dyndbg: tighten fn-sig of ddebug_apply_class_bitmap Jim Cromie
2026-04-23 20:53 ` [PATCH v14 17/92] dyndbg: replace classmap list with a vector Jim Cromie
2026-04-23 20:53 ` [PATCH v14 18/92] dyndbg: macrofy a 2-index for-loop pattern Jim Cromie
2026-04-23 20:54 ` [PATCH v14 19/92] dyndbg,module: make proper substructs in _ddebug_info Jim Cromie
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