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Diffstat (limited to 'Makerules')
-rw-r--r--Makerules20
1 files changed, 19 insertions, 1 deletions
diff --git a/Makerules b/Makerules
index df56d7a3ed..7e31ef7fba 100644
--- a/Makerules
+++ b/Makerules
@@ -663,7 +663,8 @@ ifeq ($(build-programs),yes)
endif
+depfiles := $(addprefix $(objpfx),\
$(filter-out $(addsuffix .d,$(omit-deps)),\
- $(+depfiles)))
+ $(+depfiles))) \
+ $(addprefix $(common-objpfx),$(gen-as-const-headers:.sym=.h.d))
ifdef +depfiles
ifneq ($(no_deps),t)
@@ -1177,6 +1178,23 @@ common-generated += libc.symlist
endif
endif
+
+# Generating headers for assembly constants.
+$(common-objpfx)%.h $(common-objpfx)%.h.d: $(..)scripts/gen-as-const.awk %.sym
+ $(AWK) -f $^ \
+ | $(CC) -S -o - $(CFLAGS) $(CPPFLAGS) -x c - \
+ -MD -MF $(@:.h=.h.d)T -MT '$(@:.h=.h.d) $(@:.h.d=.h)' \
+ | sed -n 's/^.*@@@name@@@\([^@]*\)@@@value@@@[^@]*\([0-9Xxa-fA-F-][0-9Xxa-fA-F-]*\).*@@@end@@@.*$$/#define \1 \2/p' > $(@:.h.d=.h)T
+ sed $(sed-remove-objpfx) \
+ -e 's@ *\([^ \/][^ \]*\)@ $$(..)\1@g' \
+ -e 's@ *\.\.\/\([^ \]*\)@ $$(..)\1@g' \
+ $(@:.h=.h.d)T > $(@:.h=.h.d)T2
+ rm -f $(@:.h=.h.d)T
+ mv -f $(@:.h=.h.d)T2 $(@:.h=.h.d)
+ mv -f $(@:.h.d=.h)T $(@:.h.d=.h)
+vpath %.sym $(sysdirs)
+
+before-compile += $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
.PHONY: TAGS
TAGS: $(objpfx)distinfo $(..)MakeTAGS