Genode Compilation Flags - Optimization

[Tiago Brito]

Hi, I've been trying to benchmark two similar programs, one running in the
NW and another running in the SW of a i.MX53 QSB. I've adapted the tz_vmm
example to run the SW program and the NW program is running on top of Linux.

I compiled my NW program with the -O3 optimization flag and I'm wondering
if the code in tz_vmm can also be compiled with this flag in order to have
the same optimization flag in both scenarios.

If it's possible, what do I have to change in order to achieve this?

Thanks in advance! Tiago

[Martin Stein]

You can try compiling it by modifying CC_OLEVEL in your
<build_dir>/etc/tools.conf (by the default, this file doesn't exist, so
you would have to create it):

CC_OLEVEL = -O3

You can verify if it is applied by adding VERBOSE= to your make call:

VERBOSE= make <target>

Cheers,
Martin

Post by Tiago Brito
Hi, I've been trying to benchmark two similar programs, one running in
the NW and another running in the SW of a i.MX53 QSB. I've adapted the
tz_vmm example to run the SW program and the NW program is running on
top of Linux.
I compiled my NW program with the -O3 optimization flag and I'm
wondering if the code in tz_vmm can also be compiled with this flag in
order to have the same optimization flag in both scenarios.
If it's possible, what do I have to change in order to achieve this?
Thanks in advance! Tiago
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[Stefan Kalkowski]

Post by Martin Stein
You can try compiling it by modifying CC_OLEVEL in your
<build_dir>/etc/tools.conf (by the default, this file doesn't exist, so
CC_OLEVEL = -O3

As supplement: this will change the optimization flag for all Genode
components including the kernel.
If you want to change it for a component only, add above line into its
target.mk file instead of the global <build_dir>/etc/tools.conf file.

Regards
Stefan

Post by Martin Stein
VERBOSE= make <target>
Cheers,
Martin

Post by Tiago Brito
Hi, I've been trying to benchmark two similar programs, one running in
the NW and another running in the SW of a i.MX53 QSB. I've adapted the
tz_vmm example to run the SW program and the NW program is running on
top of Linux.
I compiled my NW program with the -O3 optimization flag and I'm
wondering if the code in tz_vmm can also be compiled with this flag in
order to have the same optimization flag in both scenarios.
If it's possible, what do I have to change in order to achieve this?
Thanks in advance! Tiago
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everyone, including kids. Get more information and register today.
http://sdm.link/attshape
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