Re: [Qemu-devel] [PATCH] linux-user/syscall.c: Fix typo issue for using target_vec[i].iov_len instead of target_vec[i].iov_base

[Chen Gang S <gang.chen@sunrus.com.cn>]

Thank you for all of your work.

I plan to let qemu support tile architecture: "can let gcc run testsuite
with qemu for tile". It is really hard to me, but I should try, it is my
duty (I met it, and it's within my boarder, although no one pay for me).
:-)

At present, I am just preparing:

 - Reading architecture related documents (thank tile kernel member, who
   let me know about all tile architecture related documents).

 - Reading qemu architecture related code for understanding how to add
   tile code for qemu.

 - After preparing, I should provide a schedule for it (the steps, and
   the time point, and the risks which I may face to). Hope I can finish
   preparing within this month.

Welcome any ideas, suggestions and completions by any members, e.g.

 - Share any related documents or knowledge for architecture.

 - Is there any original code for tile? Maybe originally, someone tried
   qemu for tile, but the related code was not merged into main line.

 - Suggestions about the schedule: the common steps, the time resources
   may need, and which risks have to face to.


Thanks.

On 1/23/15 18:08, Peter Maydell wrote:
> On 23 January 2015 at 10:07, Chen Gang S <gang.chen@sunrus.com.cn> wrote:
>> It is only a typo issue, need use tswapal(target_vec[i].iov_len) for the
>> len.
>>
>> Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
>> ---
>>  linux-user/syscall.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
>> index a66c2ae..8260ed7 100644
>> --- a/linux-user/syscall.c
>> +++ b/linux-user/syscall.c
>> @@ -1896,7 +1896,7 @@ static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
>>      if (target_vec) {
>>          for (i = 0; i < count; i++) {
>>              abi_ulong base = tswapal(target_vec[i].iov_base);
>> -            abi_long len = tswapal(target_vec[i].iov_base);
>> +            abi_long len = tswapal(target_vec[i].iov_len);
>>              if (len < 0) {
>>                  break;
>>              }
>> --
>> 1.9.3 (Apple Git-50)
> 
> Nice catch.
> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
> 
> thanks
> -- PMM
> 

-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed