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-rw-r--r--arch/x86/Makefile.postlink47
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/x86/Makefile.postlink b/arch/x86/Makefile.postlink
new file mode 100644
index 0000000000..936093d291
--- /dev/null
+++ b/arch/x86/Makefile.postlink
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: GPL-2.0
+# ===========================================================================
+# Post-link x86 pass
+# ===========================================================================
+#
+# 1. Separate relocations from vmlinux into vmlinux.relocs.
+# 2. Strip relocations from vmlinux.
+
+PHONY := __archpost
+__archpost:
+
+-include include/config/auto.conf
+include $(srctree)/scripts/Kbuild.include
+
+CMD_RELOCS = arch/x86/tools/relocs
+OUT_RELOCS = arch/x86/boot/compressed
+quiet_cmd_relocs = RELOCS $(OUT_RELOCS)/$@.relocs
+ cmd_relocs = \
+ mkdir -p $(OUT_RELOCS); \
+ $(CMD_RELOCS) $@ > $(OUT_RELOCS)/$@.relocs; \
+ $(CMD_RELOCS) --abs-relocs $@
+
+quiet_cmd_strip_relocs = RSTRIP $@
+ cmd_strip_relocs = \
+ $(OBJCOPY) --remove-section='.rel.*' --remove-section='.rel__*' \
+ --remove-section='.rela.*' --remove-section='.rela__*' $@
+
+# `@true` prevents complaint when there is nothing to be done
+
+vmlinux: FORCE
+ @true
+ifeq ($(CONFIG_X86_NEED_RELOCS),y)
+ $(call cmd,relocs)
+ $(call cmd,strip_relocs)
+endif
+
+%.ko: FORCE
+ @true
+
+clean:
+ @rm -f $(OUT_RELOCS)/vmlinux.relocs
+
+PHONY += FORCE clean
+
+FORCE:
+
+.PHONY: $(PHONY)