i tried searching but couldnt find anything relevant ... has there
been discussion on the topic of adding integer comparison operators to
the kconfig language ?
for example, in the Blackfin world we control the supported silicon
revision selection (older versions have too many bugs to run Linux
while newer ones arent supported by the toolchain):
config BF_REV_MIN
int
default 0 if (BF52x || BF54x)
default 2 if (BF537 || BF536 || BF534)
config BF_REV_MAX
int
default 2 if (BF52x || BF54x)
default 3 if (BF537 || BF536 || BF534)
we then use these permissible values to build a list of silicon revision flags:
choice
prompt "Silicon Rev"
config BF_REV_0_0
bool "0.0"
config BF_REV_0_1
bool "0.1"
config BF_REV_0_2
bool "0.2"
config BF_REV_ANY
bool "any"
config BF_REV_NONE
bool "none"
endchoice
we'd like to have each numeric config have a depend string like so:
depends on (BF_REV_MIN <= # && # <= BF_REV_MAX)
unless there is some other kconfig magic i'm not aware of to do this better ?
side note, kconfig will silently transform "<=" into "=" ... boy that
killed some time trying to figure out wtf was going on ;)
-mike
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