kbuild: do section mismatch check on full vmlinux

[deliverable/linux.git] / Makefile

diff --git a/Makefile b/Makefile
index ddbfcac299c1c587c2e9f5d172bfb3e052b12118..4f0bd65a38d80397dbb3f38c827b8a587cc0c1da 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -612,7 +612,7 @@ quiet_cmd_vmlinux__ ?= LD      $@
       cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \
       -T $(vmlinux-lds) $(vmlinux-init)                          \
       --start-group $(vmlinux-main) --end-group                  \
-      $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) FORCE ,$^)
+      $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)
 
 # Generate new vmlinux version
 quiet_cmd_vmlinux_version = GEN     .version
@@ -736,15 +736,31 @@ debug_kallsyms: .tmp_map$(last_kallsyms)
 
 endif # ifdef CONFIG_KALLSYMS
 
+# Do modpost on a prelinked vmlinux. The finally linked vmlinux has
+# relevant sections renamed as per the linker script.
+quiet_cmd_vmlinux-modpost = LD      $@
+      cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@                          \
+        $(vmlinux-init) --start-group $(vmlinux-main) --end-group             \
+        $(filter-out $(vmlinux-init) $(vmlinux-main) $(vmlinux-lds) FORCE ,$^)
+define rule_vmlinux-modpost
+       :
+       +$(call cmd,vmlinux-modpost)
+       $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@
+       $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd
+endef
+
 # vmlinux image - including updated kernel symbols
-vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE
+vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) vmlinux.o FORCE
 ifdef CONFIG_HEADERS_CHECK
        $(Q)$(MAKE) -f $(srctree)/Makefile headers_check
 endif
+       $(call vmlinux-modpost)
        $(call if_changed_rule,vmlinux__)
-       $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@
        $(Q)rm -f .old_version
 
+vmlinux.o: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE
+       $(call if_changed_rule,vmlinux-modpost)
+
 # The actual objects are generated when descending, 
 # make sure no implicit rule kicks in
 $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;