Prior to this patch, the top-level linker script u-boot.lds used a simple $(call if_changed) check when generated. That mechanism misses cases where a possible include file change induces a change in the u-boot.lds too.
This patch converts it to a stronger check using ($call filechk) that will also notice differences in file contents and will catch changes due to pre-processing as well.
Signed-off-by: Jon Loeliger jon.loeliger@oracle.com --- Makefile | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/Makefile b/Makefile index b807e5c..dcc42b2 100644 --- a/Makefile +++ b/Makefile @@ -1052,12 +1052,13 @@ depend dep: @echo '*** Warning: make $@ is unnecessary now.'
# --------------------------------------------------------------------------- -quiet_cmd_cpp_lds = LDS $@ -cmd_cpp_lds = $(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ \ - -x assembler-with-cpp -P -o $@ $< +define filechk_ubootlds + ($(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ \ + -x assembler-with-cpp -P -o - -) +endef
u-boot.lds: $(LDSCRIPT) prepare FORCE - $(call if_changed,cpp_lds) + $(call filechk,ubootlds)
PHONY += nand_spl nand_spl: prepare