Re: Binary Compatibility of various flavors of PPC

In message [ref] you wrote:

quoted

quoted

One of our requirements is to be able to run the same binary image across
a range of systems. The image can not change just because the processor
does.

We are currently looking at the 405GPX, 8250, 8245, and PowerQUIC III.

What do you mean with "image"?

Kernel Image? Application image (for example ramdisk  with  libraries
and application binaries)? Both combined?

Both combined. A bzImage and RAM disk loaded off the boot media (Flash).

That makes for an easy answer: no go.

4xx and 82xx are different enough the required efford  to  just  make
one  kernel  image  run on all these CPU makes no sense; neither from
the technical nor from the economical point of  view.  And  user-land
stuff (libraries, applications) is yet another story.

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
"More software projects have gone awry for lack of calendar time than
for all other causes combined."
- Fred Brooks, Jr., _The Mythical Man Month_

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