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https://github.com/AsahiLinux/u-boot
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e19b0fb485
Our build system still parses ad-hoc CONFIG options in header files
and generates include/autoconf.mk so that Makefiles can reference
them. This gimmick was introduced in the pre-Kconfig days and will
be kept until Kconfig migration is completed.
The include/autoconf.mk is generated like follows:
[1] Preprocess include/common.h with -DDO_DEPS_ONLY and
retrieve macros into include/autoconf.mk.tmp
[2] Reformat include/autoconf.mk.dep into include/autoconf.mk
with tools/scripts/define2mk.sed script
[3] Remove include/autoconf.mk.tmp
Here, include/autoconf.mk.tmp is similar to u-boot.cfg, which is
also generated by preprocessing include/config.h with -DDO_DEPS_ONLY.
In other words, there is much overlap among include/autoconf.mk and
u-boot.cfg build rules.
So, the idea is to split the build rule of include/autoconf.mk
into two stages. The first preprocesses headers into u-boot.cfg.
The second parses the u-boot.cfg into include/autoconf.mk. The
build rules of u-boot.cfg in Makefile and spl/Makefile will be gone.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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| .. | ||
| basic | ||
| coccinelle/net | ||
| kconfig | ||
| .gitignore | ||
| binutils-version.sh | ||
| build-whitelist.sh | ||
| check-config.sh | ||
| checkpatch.pl | ||
| checkstack.pl | ||
| cleanpatch | ||
| config_whitelist.txt | ||
| coreboot.sed | ||
| docproc.c | ||
| dtc-version.sh | ||
| fill_scrapyard.py | ||
| gcc-stack-usage.sh | ||
| gcc-version.sh | ||
| get_default_envs.sh | ||
| get_maintainer.pl | ||
| Kbuild.include | ||
| kernel-doc | ||
| ld-version.sh | ||
| Lindent | ||
| mailmapper | ||
| Makefile | ||
| Makefile.autoconf | ||
| Makefile.build | ||
| Makefile.clean | ||
| Makefile.extrawarn | ||
| Makefile.host | ||
| Makefile.lib | ||
| Makefile.spl | ||
| Makefile.uncmd_spl | ||
| mkmakefile | ||
| objdiff | ||
| setlocalversion | ||
| show-gnu-make | ||