Hi hedwin,
thank you.
#define Struct_Section __attribute__ ((unused,section (".u_boot_cmd")))
then this should be something like this right!
cmd_tbl_t __u_boot_cmd_mtest __attribute__ ((unused,section
(".u_boot_cmd"))) = {"mtest", 5, 1, do_mem_mtest, "simple RAM read/write
test", "[start [end [pattern [iterations]]]]"}
i am sorry i am poor in this concepts , please can you tell me what
actually is going on...
On Tue, Apr 24, 2012 at 5:35 PM, hedwin <[email protected]> wrote:
> Info you can find in any c book.
> That said;
>
> ## is concatenate
> # is stringfy
>
> In you case it would look like this
>
> cmd_tbl_t __u_boot_cmd_mtest Struct_Section = {"mtest", 5, 1,
> do_mem_mtest, "simple RAM read/write test", "[start [end [pattern
> [iterations]]]]"}
>
> This struct is placed in its own section because u-boot internals can than
> easily refer to this section to read/use the uboot commands.
>
>
>
> On Tue, Apr 24, 2012 at 6:19 AM, venkat k raju <[email protected]>wrote:
>
>> Hi all,
>>
>> i want to implement my own u-boot commands,so i gone through the u-boot
>> source code i got this interface to build the u-boot commands.
>>
>> U_BOOT_CMD(
>> mtest, 5, 1, do_mem_mtest,
>> "simple RAM read/write test",
>> "[start [end [pattern [iterations]]]]"
>> );
>>
>> please can anybody explain me below chunk of code
>>
>> #define U_BOOT_CMD(name,maxargs,rep,cmd,usage,help) \
>> cmd_tbl_t __u_boot_cmd_##name Struct_Section = {#name, maxargs, rep, cmd,
>> usage, help}
>>
>> #define Struct_Section __attribute__ ((unused,section (".u_boot_cmd")))
>>
>> here cmd_tbl_t is a structure
>>
>>
>> thanks in advance!!
>>
>>
>>
>>
>>
>> thanks&Regards
>> k.v.raju
>>
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thanks&Regards
k.v.raju
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