cvs commit: src/include ar.h

[Daniel O'Connor]

On Sunday 19 November 2006 07:35, Marcel Moolenaar wrote:
> Also, since this discussion is the result of ARM aligning structures
> on 4-byte boundaries, I think that the use of __packed to compensate
> for excessive alignment is just plain wrong. We have __aligned(x) to
> inform the compiler about what the alignment of an object should be
> and that's the tool we should use to tell the compiler on ARM that
> we in fact want 1-byte alignment. take for example, the following
> structure:

Just a quick point..
__aligned__ only specified a minimum packing requirement - there is no way to 
specify a maximum (I believe)

If the underlying problem IS too large an alignment then you're screwed if you 
want a reasonably portable solution.. Perhaps __packed__ convinces the 
compiler to reduce alignment.

-- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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