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On 03/06/2013 01:59 PM, Benoît Thébaudeau wrote:
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
- -- Tom