Re: [boost] Boost 1.56 ARM builds broken? (was: Re: [Boost-users] [1.56.0] Beta 1 Available)

Subject: Re: [boost] Boost 1.56 ARM builds broken? (was: Re: [Boost-users] [1.56.0] Beta 1 Available)
From: Niall Douglas (s_sourceforge_at_[hidden])
Date: 2014-07-21 14:54:53

On 21 Jul 2014 at 18:30, Niall Douglas wrote:

> I also was surprised how badly broken clang is, so here is how it is 
> being called:
> 
>   "clang++" -c -x c++ -O0 -g -fno-inline -Wall -g -pthread -fPIC  
> -DBOOST_ALL_NO_LIB=1 -DBOOST_ATOMIC_DYN_LINK=1 -DBOOST_ATOMIC_SOURCE 
> -I"." -o 
> "bin.v2/libs/atomic/build/clang-linux-3.4/debug/threading-multi/lockpo
> ol.o" "libs/atomic/src/lockpool.cpp"
> 
> /tmp/lockpool-426fb3.s: Assembler messages:
> /tmp/lockpool-426fb3.s:165: Error: selected processor does not 
> support ARM mode `ldrexb r1,[r0]'
> /tmp/lockpool-426fb3.s:167: Error: selected processor does not 
> support ARM mode `strexb r2,r3,[r0]'
> /tmp/lockpool-426fb3.s:179: Error: selected processor does not 
> support ARM mode `ldrexb r1,[r0]'
> /tmp/lockpool-426fb3.s:181: Error: selected processor does not 
> support ARM mode `strexb r2,r3,[r0]'
> /tmp/lockpool-426fb3.s:197: Error: selected processor does not 
> support ARM mode `ldrexb r1,[r0]'
> /tmp/lockpool-426fb3.s:199: Error: selected processor does not 
> support ARM mode `strexb r2,r3,[r0]'
> /tmp/lockpool-426fb3.s:214: Error: selected processor does not 
> support ARM mode `ldrexb r1,[r0]'
> /tmp/lockpool-426fb3.s:216: Error: selected processor does not 
> support ARM mode `strexb r2,r3,[r0]'
> /tmp/lockpool-426fb3.s:233: Error: selected processor does not 
> support ARM mode `ldrexb r1,[r0]'
> /tmp/lockpool-426fb3.s:235: Error: selected processor does not 
> support ARM mode `strexb r2,r3,[r0]'
> clang: error: assembler command failed with exit code 1 (use -v to 
> see invocation)
> 
> That smells to me like ARM Ubuntu 14.04 has a badly configured clang? 
> Thoughts?

I tried forcing cpu and fpu using cxxflags='-mcpu=cortex-a15 
-mfpu=neon' (ARM clang won't do -mfpu=neon-vfpv4) and the build log 
is at:

https://ci.nedprod.com/view/Boost.AFIO/job/Boost.AFIO%20Build%20POSIX_
ARM_clang%203.4/13/consoleFull

It now compiles and links, but still outputs 23Mb of so of warnings. 
There are warnings in Filesystem, MPL and Preprocessor.

Niall

-- 
ned Productions Limited Consulting
http://www.nedproductions.biz/ 
http://ie.linkedin.com/in/nialldouglas/