Makepkg.conf for Raspberry Pi

[tomahhunt]

So my Raspberry Pi has arrived and I am running ARCH on it.
My aim is to get XBMC running on it which I am slowly getting through the build working out the flags and making a PKGBUILD file for it.

I was wondering though what the optimal makepkg setup would be for ARCH and how to make it work to enable the VFP fpu optimizations etc. I tried to do this and configure would tell me gcc could not make executables so I obviously messed it up.

What I tired was adding -mfloat-abi=hard -mfpu=vfp to CFLAGS and CXXFLAGS.

Any help much appreciated!

[WarheadsSE]

Optimally speaking, it would be a complete armv6 hard, but the kernel you have has to have been compiled that way, as well as the libraries on the system. The system & kernel have been compiled as soft armv5te, due to that ROI as compared between building out an entirely new repo singularly for the raspberry pi, and the small margin of performance difference.

[MikeBee]

Did you have any success with this? I was just going to start looking into it myself. Think there would be a lot of interest in this once the devices become a bit wider spread.

[kmihelich]

I will be looking into the feasibility of compiling and tagging certain packages for v6+vfp over the next couple months, but only for software where an improvement in speed is likely to be seen.

We will not be rebuilding everything for the RPi. Simply put, it's the only device on the market with its processor configuration and it's highly unlikely we'll see anything else using it, ever. Everyone else has been building products based on v7+neon. That is where my primary focus is.

[tgc]

$this->bbcode_second_pass_quote('tomahhunt', 'S')o my Raspberry Pi has arrived and I am running ARCH on it.
My aim is to get XBMC running on it which I am slowly getting through the build working out the flags and making a PKGBUILD file for it.

$this->bbcode_second_pass_quote('tgc', '')$this->bbcode_second_pass_quote('tomahhunt', 'S')o my Raspberry Pi has arrived and I am running ARCH on it.
My aim is to get XBMC running on it which I am slowly getting through the build working out the flags and making a PKGBUILD file for it.

[tgc]

$this->bbcode_second_pass_quote('tomahhunt', 'I') was wondering though what the optimal makepkg setup would be for ARCH and how to make it work to enable the VFP fpu optimizations etc. I tried to do this and configure would tell me gcc could not make executables so I obviously messed it up.

What I tired was adding -mfloat-abi=hard -mfpu=vfp to CFLAGS and CXXFLAGS.

[pepedog]

$this->bbcode_second_pass_quote('tgc', 'I')'ve tried compiling with this as well, but it fails because it is not allowed to link binaries compiled with "-mfloat-abi=hard" and libs compiled with "-mfloat-abi=soft" (and vice versa). This basically means that the entire system must be compiled for hardware fpu, or software fpu, no mixing. If I'm wrong please correct me!

$this->bbcode_second_pass_quote('pepedog', '')$this->bbcode_second_pass_quote('tgc', 'I')'ve tried compiling with this as well, but it fails because it is not allowed to link binaries compiled with "-mfloat-abi=hard" and libs compiled with "-mfloat-abi=soft" (and vice versa). This basically means that the entire system must be compiled for hardware fpu, or software fpu, no mixing. If I'm wrong please correct me!

[pepedog]

There is no difference in kernels for a hard or soft float system.
Ie the arch kernel and modules could be used on Debian hf