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To: Thomas Monjalon <thomas@monjalon.net>
Cc: dev@dpdk.org, "Wiles, Keith" <keith.wiles@intel.com>
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From: Alex Ciobotaru <alex.ciobotaru@gmail.com>
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Date: Tue, 22 May 2018 23:56:24 +0300
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Subject: Re: [dpdk-dev] Question about adding a new EAL
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Guys, thank you for the info so far (sorry about the HTML thing).
I will put some further insight/closure into this thread.
So, my query started from the fact that when developing a new EAL in DPDK using an external toolchain and/or for a new OS, the "common" (generic) part of the EAL is actually Linux/BSD bound:

/...// START OF EXCERPT////dpdk/build/include/rte_eal.h:15:19: fatal error: sched.h: No such file 
or directory////#include <sched.h>////^////compilation terminated.////...// END OF EXCERPT///
Above I'm building (via cross toolchain) my new "xyzapp" (with its own EAL rte_*.c files) but with the inherited common headers (since the EAL/common master Makefile makes build-generated symbolic links in my build dir).
So for now, I identified two quick options:
- Modify the EAL headers where needed. In this case, I would remove includes such as ones above from the EAL headers, but it would probably break current supported EALs
- Modify the EAL build sub-system to export my "xyzapp" (re)implemented EAL headers instead of the common ones (keeping the API, but fixing the "app" toolchain/exec-env dependencies).
   Basically all P headers that define the EAL would be split into M "common/generic" headers and N "app" re-implemented headers.

Thank you!
Alex

On 22-May-18 11:18 PM, Thomas Monjalon wrote:

> 22/05/2018 21:59, Wiles, Keith:
>> You may want to do an RFC email subject to discuss your ideas on changing EAL code first to eliminate extra work.
> Yes, definitely, RFC with first ideas can help to discuss.
>
> One more pointer, Windows support in progress:
> 	http://dpdk.org/browse/draft/dpdk-draft-windows/
>
>