Re: Embedded linux: With or without MMU

AFAIK the API calls are quite different with µCLinux, but you never do
direct Linux API calls. You need to link your application against one of
the µC-aware libraries (instead of gLibC) and thus you will notice no
difference in "normal" applications. OK there is no "fork" and you need
to use vfork instead that works a bit different, but you supposedly will
not use fork a lot anyway in your own code in an embedded device. If you
want to do multitasking with your supposedly will use the pthread library.

In terms of MMU performance lack I guess that the pthread lib will do
best - since (AFAIK) multiple POSIX threads within the same
application will run in the same address space? a fork() call will
(AFAIK again) spawn a replicate of the process in another address
space - or is this assumption wrong?

Won't I run into problems when importing general Linux application
that I need in my systems - if I run uCLinux?

Supposedly µCLinux will boot faster than full Linux.

Again because of the lack of a virtuel memory system?

--
MMJ


.

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