[PATCH] dtc: Basic integer expressions

[Stephen Warren]

On 04/09/2012 08:38 PM, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 20:56 Tue 03 Apr     , Stephen Warren wrote:
>> Written by David Gibson <david at gibson.dropbear.id.au>. Additions by me:
>> * Ported to ToT dtc.
>> * Renamed cell to integer throughout.
>> * Implemented value range checks.
>> * Allow U/L/UL/LL/ULL suffix on literals.
>> * Enabled the commented test.
>>
>> Signed-off-by: Stephen Warren <swarren at wwwdotorg.org>
>> ---
>> v3:
>> * Fix printf warning by s/%ld/%zd/
>> * Support plain "U" as an integer literal suffix
>> * Fix misplaced semi-colons in grammar
>> * Support integer expressions for /memreserve/ and /incbin/ too
>> * Modify eval_literal to check U/L suffixes after strtoull call,
>>   using strspn/strlen
>> * Remove mention of libfdt from comment in tests/integer-expressions.c
>> * Add comment to explain integer_prim range check
>> v2:
>> * s/cell/integer/ throughout.
>> * Allow signed-extended values to pass the overall cell range check.
>> * Allow L/UL/LL/ULL suffix on literals. This is purely for compatibility
>>   with C, and has no effect on dtc's processing.
>> * Enabled the 3 disabled tests.
>
> Stephen what is the status of the define value?

You mean /define/ VAR VALUE? It's on hold right now; I've been waiting
for this patch to be merged before trying to push that, since one of the
objections against the /define/ patch was that we didn't know what the
future dtc expressions syntax would look like, and hence couldn't tell
whether /define/ fit into it. Now at least we know what integer
expressions look like, so can perhaps start thinking about /define/
syntax again...