kbuild: define DO_DEPS_ONLY for u-boot.cfg to fix build error

Since 741e58e0fc8e (Create a .cfg file containing the CONFIG options
used to build), all the Blackfin boards fail to build if the parallel
(-j) option is passed.

  $ make -s bf506f-ezkit_defconfig
  #
  # configuration written to .config
  #
  $ make -j8 CROSS_COMPILE=bfin-elf-
  scripts/kconfig/conf --silentoldconfig Kconfig
    CHK     include/config.h
    UPD     include/config.h
    GEN     include/autoconf.mk
    GEN     include/autoconf.mk.dep
    CHK     include/config/uboot.release
    CHK     include/generated/timestamp_autogenerated.h
    UPD     include/generated/timestamp_autogenerated.h
    CFG     u-boot.cfg
  include/asm-offsets.h:3:43: fatal error:
  generated/generic-asm-offsets.h: No such file or directory
  compilation terminated.
  make: *** [u-boot.cfg] Error 1

When parsing header files for defined CONFIG options, DO_DEPS_ONLY
must be defined to exclude generated headers that might not have
been available yet.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/Makefile b/Makefile
index 386972890dbf0428b79b86a99a72952d232109c8..14f782ecb554924f8b98ab64b3f67529c9c73d8e 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -876,7 +876,7 @@ endif
 # Create a file containing the configuration options the image was built with
 quiet_cmd_cpp_cfg = CFG     $@
 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
-               -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
+       -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
 
 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
        -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \

diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index ea671378d0cb620bdc4d449a1a59a5d8dfcd9ed1..fd572f4b47b3e561914deb3b3c2fd5c52874d894 100644 (file)
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -167,7 +167,7 @@ all:        $(ALL-y)
 
 quiet_cmd_cpp_cfg = CFG     $@
 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
-               -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
+       -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
 
 $(obj)/$(SPL_BIN).cfg: include/config.h
        $(call if_changed,cpp_cfg)