RE: [lwip-users] '__packed' problem with ADS 1.2

[Robert Brown]

Sorry, I can't offer a solution but I can share my experience.  About 18 months ago I tried to get the ADS compiler to do something sensible with the __packed qualifier but was unsuccessful.  Ultimately, I abandoned the use of the __packed qualifier and modified the my ethernet driver to ensure that the IP header is 32-bit word aligned.

 

There have been several discussions about this problem and related problems.  You may find some help in the mailing list archives.

 

Regards,

Robert Brown

 

 

-----Original Message-----
From: address@hidden [mailto:address@hiddenOn Behalf Of 梦 程
Sent: September 1, 2005 9:25 PM
To: address@hidden
Subject: [lwip-users] '__packed' problem with ADS 1.2

Hi

When I compile the LwIP 1.1 with the ADS 1.2, the compiler show some error :

 

'=' implicit cast of pointer loses '__packed' qualifier

 

it maked by code like : seg->p->payload = seg->tcphdr;

 

this is my define about pack:

#define PACK_STRUCT_FIELD(x) x//; #pragma STRUCT_ALIGN(x,1)
#define PACK_STRUCT_STRUCT
#define PACK_STRUCT_BEGIN __packed
#define PACK_STRUCT_END

 

any body an solution?

 

 thx

 ChengMeng

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