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| author | Anas Nashif <anas.nashif@intel.com> | 2015-08-28 15:04:39 -0400 |
|---|---|---|
| committer | Anas Nashif <anas.nashif@intel.com> | 2016-02-05 20:15:33 -0500 |
| commit | bdcf909978dfbeca2718610afa9835a040827f9f (patch) | |
| tree | 286fa4973b1936a6831baed282a806dcc55b3ba6 /Kbuild | |
| parent | fbed1e4bcdd290e057e6cbf88ad413df1a67d129 (diff) | |
Kbuild: Check if offsets.h was updated
Do not rebuild offsets.h if it was not changed.
Change-Id: Idd7a4c0f1dad0575f09b84de1f47a92d20c05e70
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Diffstat (limited to 'Kbuild')
| -rw-r--r-- | Kbuild | 21 |
1 files changed, 18 insertions, 3 deletions
@@ -92,8 +92,23 @@ cmd_cc_o_c_1 = $(CC) $(KBUILD_CFLAGS) $(OFFSETS_INCLUDE) -c -o $@ $< arch/$(SRCARCH)/core/offsets/offsets.o: arch/$(SRCARCH)/core/offsets/offsets.c $(Q)mkdir -p $(dir $@) - $(call if_changed_rule,cc_o_c_1) + $(call if_changed,cc_o_c_1) + + +define offsetchk + $(Q)set -e; \ + $(kecho) ' CHK $@'; \ + mkdir -p $(dir $@); \ + $(GENOFFSET_H) -i $(1) -o $@.tmp; \ + if [ -r $@ ] && cmp -s $@ $@.tmp; then \ + rm -f $@.tmp; \ + else \ + $(kecho) ' UPD $@'; \ + mv -f $@.tmp $@; \ + fi +endef -$(obj)/include/generated/offsets.h: $(GENOFFSET_H) arch/$(SRCARCH)/core/offsets/offsets.o include/config/auto.conf FORCE - $(Q)$(GENOFFSET_H) -i arch/$(SRCARCH)/core/offsets/offsets.o -o $@ +include/generated/offsets.h: $(GENOFFSET_H) arch/$(SRCARCH)/core/offsets/offsets.o \ + include/config/auto.conf FORCE + $(call offsetchk,arch/$(SRCARCH)/core/offsets/offsets.o) |