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-rw-r--r--scripts/Makefile.build26
1 files changed, 23 insertions, 3 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index de9836eee8b..67fb4530a6f 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -83,10 +83,12 @@ ifneq ($(strip $(obj-y) $(obj-m) $(obj-n) $(obj-) $(lib-target)),)
builtin-target := $(obj)/built-in.o
endif
+modorder-target := $(obj)/modules.order
+
# We keep a list of all modules in $(MODVERDIR)
__build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(extra-y)) \
- $(if $(KBUILD_MODULES),$(obj-m)) \
+ $(if $(KBUILD_MODULES),$(obj-m) $(modorder-target)) \
$(subdir-ym) $(always)
@:
@@ -101,6 +103,10 @@ ifneq ($(KBUILD_CHECKSRC),0)
endif
endif
+# Do section mismatch analysis for each module/built-in.o
+ifdef CONFIG_DEBUG_SECTION_MISMATCH
+ cmd_secanalysis = ; scripts/mod/modpost $@
+endif
# Compile C sources (.c)
# ---------------------------------------------------------------------------
@@ -266,7 +272,8 @@ ifdef builtin-target
quiet_cmd_link_o_target = LD $@
# If the list of objects to link is empty, just create an empty built-in.o
cmd_link_o_target = $(if $(strip $(obj-y)),\
- $(LD) $(ld_flags) -r -o $@ $(filter $(obj-y), $^),\
+ $(LD) $(ld_flags) -r -o $@ $(filter $(obj-y), $^) \
+ $(cmd_secanalysis),\
rm -f $@; $(AR) rcs $@)
$(builtin-target): $(obj-y) FORCE
@@ -276,6 +283,19 @@ targets += $(builtin-target)
endif # builtin-target
#
+# Rule to create modules.order file
+#
+# Create commands to either record .ko file or cat modules.order from
+# a subdirectory
+modorder-cmds = \
+ $(foreach m, $(modorder), \
+ $(if $(filter %/modules.order, $m), \
+ cat $m;, echo kernel/$m;))
+
+$(modorder-target): $(subdir-ym) FORCE
+ $(Q)(cat /dev/null; $(modorder-cmds)) > $@
+
+#
# Rule to compile a set of .o files into one .a file
#
ifdef lib-target
@@ -301,7 +321,7 @@ $($(subst $(obj)/,,$(@:.o=-objs))) \
$($(subst $(obj)/,,$(@:.o=-y)))), $^)
quiet_cmd_link_multi-y = LD $@
-cmd_link_multi-y = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps)
+cmd_link_multi-y = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis)
quiet_cmd_link_multi-m = LD [M] $@
cmd_link_multi-m = $(cmd_link_multi-y)