2010/11/5 goldsi...@gmx.de :
> You could have had that problem with any other third-party library. Why not
> rely on a fact that is defined in the C standard? It makes the binary
> smaller. OK, there might be code where those global variables get initalized
> to zero/NULL again (lwIP did that, too,
Jeff, that is a good solution. Next time I need to do this, I will
look into that.
Thanks.
M
On Fri, Nov 5, 2010 at 2:00 PM, Jeff Barber wrote:
> Why don't you just imitate what the boot loader would do? Find the
> symbol that indicates the beginning of BSS and the symbol that
> indicates the e
Why don't you just imitate what the boot loader would do? Find the
symbol that indicates the beginning of BSS and the symbol that
indicates the end, find the difference and clear. Then only do that
when your wakeup has decided there's something to do. Linker-dependent
but usually these symbols ar
Simon...
It sounds like you are frustrated that this issue has been raised
multiple times and doesn't seem to go away! I am sorry to add to the
'fire'. In all the important things that could be done/worked on this
is, I am sure a low priority.
I wanted to bring to your attention a use case where
Rick Solotke wrote:
I just wanted to pop in and say that I have observed and debugged the
same problem, specifically for the UDP and TCP PCB lists. It would be
great if the code could be changed to explicitly initialize these to
NULL.
You could have had that problem with any other third-party li
Excerpt from the ANSI-C Standard (e.g. http://flash-gordon.me.uk/ansi.c.txt):
If an object that has static storage duration is not initialized
explicitly, it is initialized implicitly as if every member that has
arithmetic type were assigned 0 and every member that has pointer type
were assigned a
Simon,
I have hit this problem where an environment by default turns off the
initialization of globals for 'efficiency' and expects an application
to explicit zero out the globals and statics as needed. For example, I
use an ultra low powered wifi chip that has lwIP in ROM and it loads
applicaiton
Hey Piotr,
I hate to turn you down on that, but the variables are deliberately not being
initialized: when not initialized (and thus implicitly zeroed at startup), they
are put into the uninitialized section and no space on disk/in flash is needed.
However when they are initialized to NULL, the
Hi all,
I just wanted to pop in and say that I have observed and debugged the
same problem, specifically for the UDP and TCP PCB lists. It would be
great if the code could be changed to explicitly initialize these to
NULL.
Cheers,
Rick
-Original Message-
From: lwip-users-bounces+rsolotk
Hello,
I currently implement the LwIP stack under u-boot environment and I
have one notice regarding global variables initialization. I think
that every global variable which are not static should be initialized
by NULL or 0 value. I mean for example:
file tcp.c:
struct tcp_pcb *tcp_bound_pcbs;
u
Simon,
Sure. Please feel free to update as appropriate.
I've kept half an eye on the development of 1.4.0 but given the time
frames, I haven't been in a position to upgrade the lwip version in my
product (and probably won't be able to any time soon).
Yes, the "mch_ip_addr" is simply a typedef for
Great job, thanks for that!
There are a few things I would change though, if it's OK for you (and when I
find the time):
- lwIP 1.4.0 provides ready-to-use functions for timers, so there's no need to
implement that yourself
- you used the type mch_ip_add, which is not defined anywhere - later, th
Done. New page on the wiki at http://lwip.wikia.com/wiki/Porting_For_Bare_Metal
On Thu, Nov 4, 2010 at 3:50 PM, Kieran Mansley wrote:
>
> On 4 Nov 2010, at 17:55, Jeff Barber wrote:
>
>> I went through this learning curve last year and did essentially the
>> same thing (for a very different boa
Kieran,
I think I will have some problems in the beggining, if I get lots of troubles,
I will try to port on a Windows machine and learn it before porting.
Ty for your answer.
[]s
André
--- Em qui, 4/11/10, Kieran Mansley escreveu:
> De: Kieran Mansley
> Assunto: RE: [lwip-users] Help on po
Jeff,
Thanks a lot for this steps.
By now, as I can see, I will have a lot of work to do.
If I got any sucees I will post in here, so anyone who needs something that
looks like what I'm doing will be able to use it.
Ty everyone
[]s
André
--- Em qui, 4/11/10, Jeff Barber escreveu:
> De: Jeff
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