[cfe-dev] Clang and related tools are for ARM too ?

[Jeffrey Walton]

On Fri, Aug 2, 2013 at 4:11 AM, Renato Golin <renato.golin at linaro.org> wrote:
> On 1 August 2013 13:47, Arji Cot <arjicot at gmail.com> wrote:
>>
>> It's possible to run clang and all the other related compiler tools on an
>> armv5 or armv7 device ?
> ...
> Cross-compilation is a bit of a pain, for now, as Clang has some trouble
> finding all tools (headers, libraries, binutils, etc) and it might end up
> sending some cryptic messages when it tried to use the native (x86) linker,
> for example. It's getting better, though, and it does know about most Linux
> distributions' preferences.
>
> On my Ubuntu machine, with gcc-4.7-multilib-arm-linux-gnueabihf installed, I
> call:
>
> $ clang -target arm-linux-gnueabihf -I /usr/arm-linux-gnueabihf/include
> -mcpu=cortex-a9 -mfpu=neon -mthumb file.c
>
> And it works a charm, because Clang knows where binutils is (inferred from
> my target triple), however, it didn't infer my include path, which it could.
--sysroot is very helpful here
(http://gcc.gnu.org/onlinedocs/gcc/Directory-Options.html). It takes
nearly all the pain out of header and library paths. I've never had
any pains from the command line on Android or iOS using it.

Jeff