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| author | Rasmus Villemoes <rasmus.villemoes@prevas.dk> | 2018-03-20 11:38:45 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-04-06 20:45:28 -0400 |
| commit | f3d8f7dd73ac5dde258eb786d4a01869395b56d7 (patch) | |
| tree | ac0438620f8ac9bacd7a390ec03f05f6ad50dd01 /Makefile | |
| parent | 11dfd1a331e915b17f3dd25c4ca98382d400719e (diff) | |
| download | u-boot-f3d8f7dd73ac5dde258eb786d4a01869395b56d7.zip u-boot-f3d8f7dd73ac5dde258eb786d4a01869395b56d7.tar.gz u-boot-f3d8f7dd73ac5dde258eb786d4a01869395b56d7.tar.bz2 | |
Allow providing default environment from file
Modifying the default environment via CONFIG_EXTRA_ENV_SETTINGS is
somewhat inflexible, partly because the cpp language does not allow
appending to an existing macro. This prevents reuse of "environment
fragments" for different boards, which in turn makes maintaining that
environment consistently tedious and error-prone.
This implements a Kconfig option for allowing one to define the entire
default environment in an external file, which can then, for example, be
generated programmatically as part of a Yocto recipe, or simply be kept
in version control separately from the U-boot repository.
Tested-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 16 |
1 files changed, 16 insertions, 0 deletions
@@ -423,6 +423,7 @@ endif version_h := include/generated/version_autogenerated.h timestamp_h := include/generated/timestamp_autogenerated.h +defaultenv_h := include/generated/defaultenv_autogenerated.h no-dot-config-targets := clean clobber mrproper distclean \ help %docs check% coccicheck \ @@ -1391,6 +1392,10 @@ ifeq ($(wildcard $(LDSCRIPT)),) @/bin/false endif +ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) +prepare1: $(defaultenv_h) +endif + archprepare: prepare1 scripts_basic prepare0: archprepare FORCE @@ -1438,12 +1443,23 @@ define filechk_timestamp.h fi) endef +define filechk_defaultenv.h + (grep -v '^#' | \ + grep -v '^$$' | \ + tr '\n' '\0' | \ + sed -e 's/\\\x0/\n/' | \ + xxd -i ; echo ", 0x00" ; ) +endef + $(version_h): include/config/uboot.release FORCE $(call filechk,version.h) $(timestamp_h): $(srctree)/Makefile FORCE $(call filechk,timestamp.h) +$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE + $(call filechk,defaultenv.h) + # --------------------------------------------------------------------------- quiet_cmd_cpp_lds = LDS $@ cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ |