[v3,05/15] kbuild: generate a list of objects in vmlinux

Commit Message

Masahiro Yamada May 5, 2022, 7:22 a.m. UTC

A *.mod file lists the member objects of a module, but vmlinux does
not have such a file to list out all the member objects.

Generate this list to allow modpost to know all the member objects.

Signed-off-by: Masahiro Yamada <[e-mail]>
Reviewed-by: Nicolas Schier <[e-mail]>
---

(no changes since v2)

Changes in v2:
  - Move '> .vmlinux.objs' to the outside of the loop (Nicolas)
  - Clean up .vmlinux.objs explicitly

 scripts/link-vmlinux.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)

Patch

diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 20f44504a644..eceb3ee7ec06 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -311,6 +311,7 @@  cleanup()
 	rm -f vmlinux.map
 	rm -f vmlinux.o
 	rm -f .vmlinux.d
+	rm -f .vmlinux.objs
 }
 
 # Use "make V=1" to debug this script
@@ -342,6 +343,16 @@  ${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init need-builtin=1
 modpost_link vmlinux.o
 objtool_link vmlinux.o
 
+# Generate the list of objects in vmlinux
+for f in ${KBUILD_VMLINUX_OBJS} ${KBUILD_VMLINUX_LIBS}; do
+	case ${f} in
+	*.a)
+		${AR} t ${f} ;;
+	*)
+		echo ${f} ;;
+	esac
+done > .vmlinux.objs
+
 # modpost vmlinux.o to check for section mismatches
 ${MAKE} -f "${srctree}/scripts/Makefile.modpost" MODPOST_VMLINUX=1