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.thebaud...@advansee.com>
Reviewed-by: Tom Rini <tr...@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/;
--
1.7.10.4
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