[LLVMdev] Can libc++ build for arm cross compiler?

Logan Chien
Tue, 30 Sep 2014 17:58:33 -0000

Hi cschen,

Here are the test scripts which I written when I was developing ARM
exception handling support:
https://github.com/loganchien/libcxx-scripts

The script should work on Debian wheezy (cross-compiling from amd64 to
armhf.)

In general, here are the necessary steps:
1. Get a working arm-linux-gnueabihf gcc/g++ toolchain (for the headers and
libraries)
2. Setup the include search path (e.g. /usr/arm-linux-gnueabihf/include)
3. Compile with correct compiler/linker flags (e.g. -target
arm-linux-gnueabihf and some cmake tricks)

Feel free to let me know if you have encountered any problem.

Sincerely,
Logan

On Tue, Sep 30, 2014 at 5:22 PM, Richard Pennington <rich at pennware.com>
wrote:

>  On 09/30/2014 02:37 AM, gamma_chen wrote:
>
>  The following web say the libc++abi is ready on arm.
> http://libcxxabi.llvm.org/spec.html
>
>  I try to build libc++ and libc++abi for host x86_64(linux) and target
> arm(linux) but fail.
> I have read the web http://llvm.org/docs/HowToCrossCompileLLVM.html
>
>  Does anyone know whether it's available for my need? If you know how
to
> build, what is the build options you use?
>
>  I use libc++ and libc++abi (as well as compiler-rt) for the ELLCC cross
> compilation tool chain project (http://ellcc.org). I use makefiles to
> build the libc++ stuff, which are pretty dependent on being used in an
> ELLCC environment. You can get pre built binaries from ftp://ellcc.org/pub.
> The tarballs contain pre built libraries for ARM (as well as Mips, x86,
> PowerPC, and semi-functional Microblaze).
>
> -Rich
>
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