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authorMasahiro Yamada <masahiroy@kernel.org>2025-09-18 11:05:47 +0300
committerNathan Chancellor <nathan@kernel.org>2025-09-24 19:10:44 +0300
commit3e86e4d74c0490e5fc5a7f8de8f29e7579c9ffe5 (patch)
treea3d4387a39c54da1d532723b05e17a0d47f38d55 /scripts/Makefile.vmlinux
parent0ce5139fd96e9d415d3faaef1c575e238f9bbd67 (diff)
downloadlinux-3e86e4d74c0490e5fc5a7f8de8f29e7579c9ffe5.tar.xz
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 <masahiroy@kernel.org> Signed-off-by: Alexey Gladkov <legion@kernel.org> Reviewed-by: Nicolas Schier <nsc@kernel.org> Link: https://patch.msgid.link/aaf67c07447215463300fccaa758904bac42f992.1758182101.git.legion@kernel.org Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Diffstat (limited to 'scripts/Makefile.vmlinux')
-rw-r--r--scripts/Makefile.vmlinux7
1 files changed, 5 insertions, 2 deletions
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