@@ -85,15 +85,26 @@ include/config.h: scripts/Makefile.autoconf create_symlink FORCE
$(call filechk,config_h)
# symbolic links
+# If arch/$(ARCH)/mach-$(SOC)/include/mach exists,
+# make a symbolic link to that directory.
+# Otherwise, create a symbolic link to arch/$(ARCH)/include/asm/arch-$(SOC).
PHONY += create_symlink
create_symlink:
ifneq ($(KBUILD_SRC),)
$(Q)mkdir -p include/asm
- $(Q)ln -fsn $(KBUILD_SRC)/arch/$(ARCH)/include/asm/arch-$(if $(SOC),$(SOC),$(CPU)) \
- include/asm/arch
+ $(Q)if [ -d $(KBUILD_SRC)/arch/$(ARCH)/mach-$(SOC)/include/mach ]; then \
+ dest=arch/$(ARCH)/mach-$(SOC)/include/mach; \
+ else \
+ dest=arch/$(ARCH)/include/asm/arch-$(if $(SOC),$(SOC),$(CPU)); \
+ fi; \
+ ln -fsn $(KBUILD_SRC)/$$dest include/asm/arch
else
- $(Q)ln -fsn arch-$(if $(SOC),$(SOC),$(CPU)) \
- arch/$(ARCH)/include/asm/arch
+ $(Q)if [ -d arch/$(ARCH)/mach-$(SOC)/include/mach ]; then \
+ dest=../../mach-$(SOC)/include/mach; \
+ else \
+ dest=arch-$(if $(SOC),$(SOC),$(CPU)); \
+ fi; \
+ ln -fsn $$dest arch/$(ARCH)/include/asm/arch
endif
PHONY += FORCE
In U-Boot, SoC-specific headers are placed in arch/$(ARCH)/include/asm/arch-$(SOC) and a symbolic link to that directory is created at the early stage of the build process. Creating and removing a symbolic link during the build is not preferred. In fact, Linux Kernel did away with include/asm-$(ARCH) directories a long time time ago. As for ARM, now it is possible to collect SoC sources into arch/arm/mach-$(SOC). It is also reasonable to move SoC headers into arch/arm/mach-$(SOC)/include/mach. This commit prepares for that. If the directory arch/$(ARCH)/mach-$(SOC)/include/mach exists, a symbolic to that directory is created. Otherwise, a symbolic link to arch/$(ARCH)/include/asm/arch-$(SOC) or arch-$(CPU) is created. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> --- scripts/Makefile.autoconf | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-)