I think that the all trouble are caused by libtool used in the pocl package.
I cannot do cross compile build on my X86 machine for ARM board, if I do, I can
make sure that LLVM, Clang and Pocl are built from the same toolchains. it will
be fine. But now, it is pretty hard to do the combination
Regards,
Yi
________________________________
From: Kalle Raiskila <[email protected]>
To: [email protected]
Sent: Tuesday, October 16, 2012 9:11 AM
Subject: Re: [pocl-devel] build pocl-0.6 on ARM board
On 15/10/12 22:37, ext Yi Ge wrote:
> Anybody built pocl ARM
> version successfully? Could u share the environment details and build
> process?
Don't know if our problems here are related, but I failed to get pocl
compiled on ARM too. My setup is a pandaboard, I tried with ubuntu 12.04
and 11.04.
On the 12.04 clang-3.1 was not able to build binaries at all, even when
used outside of pocl as a plain C compiler. It tried to link in some
crt.o files that didn't seem to exists on unbuntu 12.04-arm. This could
be due to the 12.04 being an upgraded distro, not a fresh install (i.e.
some glitch in apt, or in me using it).
This file in clang:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains.cpp?view=markup
shows there are a some platform-specifics needed :)
I tried on ubuntu 11.04 too, with more success - clang was able to
compile 'hello_world.c', at least. But with pocl, I noticed that the
clang-binary does not like what the ./configure of pocl sets as
host/target triple. clang wanted to change this (armv7-....) into
armv4...., and thus use an ABI with soft-floats. And such a library was
not found on the platform (not found by pocl/clang, at least).
Both cases used a natively built LLVM+Clang 3.1. I had no problems
building it with the standard "./configure" on either distro (well,
except that on the 12.04 clang didn't work). As toolchain I used what
gcc the ubuntu had as default.
kalle
--
But beware the debugger. Dark side of the source it is.
If once you start down the dark path, forever will it dominate
your destiny. Consume you it will.
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