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Re: [lwip-users] Help on porting LWIP
From: |
Kieran Mansley |
Subject: |
Re: [lwip-users] Help on porting LWIP |
Date: |
Thu, 11 Nov 2010 11:24:56 +0000 |
On Thu, 2010-11-11 at 03:19 -0800, André wrote:
> In time of writting, my compiler seems not to support packed attribute
> yet. Is it vital to use it on that packed structures or it is just for
> compacting the code?
It is vital that the structures that are marked packed do not have any
padding inserted between the fields. Some compilers do this to give
fields improved alignment. If your compiler does not support packed
structures (it may support them, just using a different syntax to gcc)
then you must also make sure that it does not insert padding into
structures (i.e. it effectively packs everything).
Kieran
- Re: [lwip-users] Help on porting LWIP, (continued)
- Re: [lwip-users] Help on porting LWIP, Jeff Barber, 2010/11/04
- Re: [lwip-users] Help on porting LWIP, Kieran Mansley, 2010/11/04
- Re: [lwip-users] Help on porting LWIP, Jeff Barber, 2010/11/05
- Re: [lwip-users] Help on porting LWIP, Simon Goldschmidt, 2010/11/05
- Re: [lwip-users] Help on porting LWIP, Jeff Barber, 2010/11/05
- Re: [lwip-users] Help on porting LWIP, André, 2010/11/10
- Re: [lwip-users] Help on porting LWIP, Piotr Piwko, 2010/11/10
- Re: [lwip-users] Help on porting LWIP, André, 2010/11/10
- Re: [lwip-users] Help on porting LWIP, Piotr Piwko, 2010/11/10
- Re: [lwip-users] Help on porting LWIP, André, 2010/11/11
- Re: [lwip-users] Help on porting LWIP,
Kieran Mansley <=
- Re: [lwip-users] Help on porting LWIP, Yoav Nissim, 2010/11/11
- Re: [lwip-users] Help on porting LWIP, André, 2010/11/05
- RE: [lwip-users] Help on porting LWIP, André, 2010/11/05
- RE: [lwip-users] Help on porting LWIP, Pettinato, Jim, 2010/11/04