[U-Boot] [PATCH v2 0/9] Unified command execution in one place

Simon Glass sjg at chromium.org
Tue Jan 17 17:45:04 CET 2012


Hi Stefan,

On Wed, Jan 11, 2012 at 11:43 PM, Stefan Roese <sr at denx.de> wrote:
> On Saturday 10 December 2011 19:43:52 Simon Glass wrote:
>> At present two parsers have similar code to execute commands. Also
>> cmd_usage() is called all over the place. This series adds a single
>> function which processes commands called cmd_process().
>>
>> This new function understands return codes, and in particular
>> CMD_RET_USAGE to indicate a usage error. So rather than calling
>> cmd_usage() themselves, the command handlers can just return this
>> error.
>>
>> There appears to be a run_command2() which is used to run commands
>> with the selected parser. This series changes this in two separate
>> steps to just run_command(), and renames the old run_command() to
>> builtin_run_command(). No one should call this outside main.c since
>> if the hush parser is being used it is wrong to call it. The
>> built-in parser code could move into a separate file perhaps in a
>> future patch.
>>
>> The overall series reduces code size on ARM by about 1KB on
>> my ~160KB U-Boot text region when the hush parser is used, and around
>> 60 bytes when it isn't.
>>
>> As an aside the only user of parse_line() is fsl_ddr_interactive()
>> which seems to have its own command line interface which operates
>> before DRAM is set up. Do I have this right? Is there no way this
>> could be done later from a normal U-Boot command?
>
> Whole series:
>
> Applied to u-boot-staging/sr at denx.de. Thanks.

Thanks for your efforts with this, sorry about the return code
problem. I have re-done the series keeping the original return code
behaviour - let's wait and see what people think of that.

Regards,
Simon

>
> Best regards,
> Stefan
>
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