[U-Boot-Users] EABI Problem

Wolfgang Denk
2007-11-06T07:33:48Z

In message <200711060631.12189.sr@denx.de> you wrote:
>
> > > > -#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
> > > > +#define CFG_MALLOC_LEN (128*1024)
...
> > > see why this change would be needed. If there is a compi8le problem,
> > > the reason for that problem should be located and fixed, without
> > > changing this code.
...
> > Well ARM assembly only accepts immediate values with certain
> > properties (representable as an 8-bit value plus a 5-bit shift
> > or something, I forgot the details). My ARM assembly skills

My gut feeling is that this is not the root of the problem. I feel
that probably the assembler does not see a pure numerical expression,
but instead is confronted with the (unsubstituted) string literal
CFG_ENV_SIZE, and that this is causing the problem.

This is what I think needs to be checked and fixed, as the same
problem might be present (eventually undetected) somewhere else, too.

> > are pretty weak, so changing start.S to accept an arbitrary constant
> > is out of scope for me. We could maybe just set CFG_MALLOC_LEN
> > to 132*1024 (untested), or we could move the CFG_MALLOC_LEN
> > down in the file next to the

Please try out if "(132*1024)" works... that would give a some
helpful additional information.

> > #ifdef CONFIG_KB9202
> > #define CFG_ENV_OFFSET 0x3E00
> > #define CFG_ENV_SIZE 0x0200

This is broken. 512 bytes of environmnt is much too small to be
useful.

> > #define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024 + 0x4e00)

This is broken,too. Where is the 0x4e00 coming from here?

> > #else
> > #define CFG_ENV_OFFSET 0x1000
> > #define CFG_ENV_SIZE 0x1000
> > #define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024 + 0x3000)

Where is the 0x3000 coming from here?

> Why not just increasing. It's normally no problem having bigger malloc area:
>
> #define CFG_MALLOC_LEN (256*1024)

If this works, then it is another indication that there is a
preprocessing problem. This problem should be fixed and not hidden.

Best regards,

Wolfgang Denk

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