Give more flexibility to define configs that can be interpreted by make, e.g. to define fallback values of configs like in the example below.
Before this change, the config lines: #define CONFIG_SPL_MAX_SIZE 2048 #define CONFIG_SPL_PAD_TO CONFIG_SPL_MAX_SIZE would have been changed in autoconfig.mk into: CONFIG_SPL_MAX_SIZE=2048 CONFIG_SPL_PAD_TO="CONFIG_SPL_MAX_SIZE"
Hence, a make recipe using as an argument to $(OBJCOPY): --pad-to=$(CONFIG_SPL_PAD_TO) would have issued: --pad-to="CONFIG_SPL_MAX_SIZE" which means nothing for $(OBJCOPY) and makes it fail.
Thanks to this change, the config lines above are changed in autoconfig.mk into: CONFIG_SPL_MAX_SIZE=2048 CONFIG_SPL_PAD_TO=$(CONFIG_SPL_MAX_SIZE)
Hence, the make recipe above now issues: --pad-to=2048 as expected from the defined config.
Signed-off-by: Benoît Thébaudeau benoit.thebaudeau@advansee.com Reviewed-by: Tom Rini trini@ti.com --- Changes in v10: None Changes in v9: - Add detailed patch description.
Changes in v8: - New patch.
Changes in v7: None Changes in v6: None Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None
tools/scripts/define2mk.sed | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/tools/scripts/define2mk.sed b/tools/scripts/define2mk.sed index 13e2845..c641edf 100644 --- a/tools/scripts/define2mk.sed +++ b/tools/scripts/define2mk.sed @@ -24,6 +24,8 @@ s/="([0-9][0-9]*)"/=\1/; # ... and from hex numbers s/="(0[Xx][0-9a-fA-F][0-9a-fA-F]*)"/=\1/; + # ... and from configs defined from other configs + s/="(CONFIG_[A-Za-z0-9_][A-Za-z0-9_]*)"/=$(\1)/; # Change '1' and empty values to "y" (not perfect, but # supports conditional compilation in the makefiles s/=$/=y/;