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RE: [lwip-users] [PATCH] fix warning for gcc and possible unaligned acce
From: |
Leon Woestenberg |
Subject: |
RE: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access |
Date: |
Sun, 30 Apr 2006 23:36:16 +0200 |
Curt, Timmy,
On Tue, 2006-04-25 at 16:00 -0700, Curt McDowell wrote:
> Timmy Brolin wrote:
> > But replacing ip_addr2 with ip_addr will break things on all
> > compilers that do not support packed structs. Possibly others as well.
>
Timmy, thanks for crawling back through the mailing list archives and
explaining why we did this back then. My memory had lost me there (uh,
or is the other way around? :-)
> Ah; if lwip was meant to compile without packed structs, that explains a lot.
> It would have saved a lot of hassle if ip_addr2 had a comment next to it, and
> was not itself packed, or if the comments in etharp.c mentioned that...
>
Sure, we should have done that back then - it would ourselves have saved
half of this discussion. Can someone commit a note now?
Finding these workarounds (and a lot of others in lwIP, such as the
#include's around packed structs) has cost half of the development time
of lwIP. :-/
Regards,
Leon.
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, (continued)
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Timmy Brolin, 2006/04/25
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Pedro Alves, 2006/04/25
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Timmy Brolin, 2006/04/25
- RE: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Curt McDowell, 2006/04/25
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Timmy Brolin, 2006/04/25
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Pedro Alves, 2006/04/25
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Timmy Brolin, 2006/04/26
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Derek Guerdon, 2006/04/27
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Leon Woestenberg, 2006/04/30
- RE: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Curt McDowell, 2006/04/25
- RE: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access,
Leon Woestenberg <=
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Curt McDowell, 2006/04/23
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Leon Woestenberg, 2006/04/23
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Timmy Brolin, 2006/04/24
- Re: [lwip-users] [PATCH] fix warning for gcc and possible unaligned access, Timmy Brolin, 2006/04/22