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Date: Tue, 25 Aug 2015 10:05:40 +1000
From: Matthew Fernandez <matthew.fernandez@...ta.com.au>
To: <musl@...ts.openwall.com>
Subject: Re: Cross-compiling Musl with Clang's integrated assembler
On 24/08/15 19:15, Joakim Sindholt wrote:
> On Mon, 2015-08-24 at 16:24 +1000, Matthew Fernandez wrote:
>> Hi all,
>>
>> I'm trying to build Musl for an ARM target on an x86_64 host using Clang. It seems some of the Musl
>> assembly uses the LDR pseudo instruction that the Clang integrated assembler doesn't understand:
>>
>> $ clang -target arm-none-eabi -integrated-as -c crt/arm/crt1.s
>> '+soft-float-abi' is not a recognized feature for this target (ignoring feature)
>> crt/arm/crt1.s:10:9: error: unexpected token in operand
>> ldr a4,=_fini
>> ...
>>
>> Is this configuration supported? Perhaps Musl is never intended to be built by Clang's assembler.
>>
>> Thanks,
>> Matt
>>
>> clang version: 3.4-1ubuntu3
>
> You probably want to upgrade to at least 3.5. If memory serves, ARM
> support was very much incomplete until then. I have no trouble building
> musl with clang -integrated-as (3.6) currently, so long as it's not the
> armhf arch target which uses some pre-UAL assembly.
> I'm not sure if your target triple has anything to do with it, but I'm
> currently using armv7a-none-eabi.
>
> -- Joakim
Yes, looks like you're right. With 3.6.0 (r218935) this works fine. Sorry for the noise and thanks
for the quick answer!
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