From 3e86e4d74c0490e5fc5a7f8de8f29e7579c9ffe5 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 18 Sep 2025 10:05:47 +0200 Subject: kbuild: keep .modinfo section in vmlinux.unstripped Keep the .modinfo section during linking, but strip it from the final vmlinux. Adjust scripts/mksysmap to exclude modinfo symbols from kallsyms. This change will allow the next commit to extract the .modinfo section from the vmlinux.unstripped intermediate. Signed-off-by: Masahiro Yamada Signed-off-by: Alexey Gladkov Reviewed-by: Nicolas Schier Link: https://patch.msgid.link/aaf67c07447215463300fccaa758904bac42f992.1758182101.git.legion@kernel.org Signed-off-by: Nathan Chancellor --- scripts/Makefile.vmlinux | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'scripts/Makefile.vmlinux') diff --git a/scripts/Makefile.vmlinux b/scripts/Makefile.vmlinux index 4f2d4c3fb737..70856dab0f54 100644 --- a/scripts/Makefile.vmlinux +++ b/scripts/Makefile.vmlinux @@ -86,11 +86,14 @@ endif # vmlinux # --------------------------------------------------------------------------- -remove-section-y := +remove-section-y := .modinfo remove-section-$(CONFIG_ARCH_VMLINUX_NEEDS_RELOCS) += '.rel*' +# To avoid warnings: "empty loadable segment detected at ..." from GNU objcopy, +# it is necessary to remove the PT_LOAD flag from the segment. quiet_cmd_strip_relocs = OBJCOPY $@ - cmd_strip_relocs = $(OBJCOPY) $(addprefix --remove-section=,$(remove-section-y)) $< $@ + cmd_strip_relocs = $(OBJCOPY) $(patsubst %,--set-section-flags %=noload,$(remove-section-y)) $< $@; \ + $(OBJCOPY) $(addprefix --remove-section=,$(remove-section-y)) $@ targets += vmlinux vmlinux: vmlinux.unstripped FORCE -- cgit v1.2.3