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/