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rules.mak: Fix module build 

Module build is broken since commit c261d774fb ( rules.mak: Fix DSO
build by pulling in archive symbols). That commit added .mo placeholders
of DSO to -y variables, in order to pull stub symbols to executable. But
the placeholders are unintentionally expanded in -y, rather than
filtered out while linking.

Fix it by moving the -objs expanding to before inserting .mo
placeholders.  Note that passing -cflags and -libs to member objects are
also moved to keep it happening before object expanding.

Reported-by: Bharata B Rao <bharata.rao@gmail.com>
Tested-by: Bharata B Rao <bharata.rao@gmail.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Fam Zheng 2015-01-12 12:43:09 +08:00 committed by Paolo Bonzini
parent 6f84da3a07
commit c88f68ec3c
1 changed files with 12 additions and 11 deletions
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23
rules.mak
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@ -326,7 +326,17 @@ define unnest-vars
$(if $1,$(call fix-paths,$1/,,$2))
# Descend and include every subdir Makefile.objs
$(foreach v, $2, $(call unnest-var-recursive,$1,$2,$v))
$(foreach v, $2,
$(call unnest-var-recursive,$1,$2,$v)
# Pass the .mo-cflags and .mo-libs along to its member objects
$(foreach o, $(filter %.mo,$($v)),
$(foreach p,$($o-objs),
$(if $($o-cflags), $(eval $p-cflags += $($o-cflags)))
$(if $($o-libs), $(eval $p-libs += $($o-libs))))))
# For all %.mo objects that are directly added into -y, just expand them
$(foreach v,$(filter %-y,$2),
$(eval $v := $(foreach o,$($v),$(if $($o-objs),$($o-objs),$o))))
$(foreach v,$(filter %-m,$2),
# All .o found in *-m variables are single object modules, create .mo
@ -353,18 +363,9 @@ define unnest-vars
# according to .mo-objs. Report error if not set
$(if $($o-objs),
$(eval $(o:%.mo=%$(DSOSUF)): module-common.o $($o-objs)),
$(error $o added in $v but $o-objs is not set))
# Pass the .mo-cflags and .mo-libs along to member objects
$(foreach p,$($o-objs),
$(if $($o-cflags), $(eval $p-cflags += $($o-cflags)))
$(if $($o-libs), $(eval $p-libs += $($o-libs)))))
$(error $o added in $v but $o-objs is not set)))
$(shell mkdir -p ./ $(sort $(dir $($v))))
# Include all the .d files
$(eval -include $(addsuffix *.d, $(sort $(dir $($v)))))
$(eval $v := $(filter-out %/,$($v))))
# For all %.mo objects that are directly added into -y, expand them to %.mo-objs
$(foreach v,$2,
$(eval $v := $(foreach o,$($v),$(if $($o-objs),$($o-objs),$o))))
endef