[LLVMdev] Building clang on Raspberry Pi2

[Ben Pope]

The raspberry Pi2 is an armv7a chip (Cortex-A7), the first stage builds 
fine with the native g++ (if not a little slowly at 10+ hours), but it 
crashes at some point with this command line:

Program arguments: 
/home/ben/development/llvm/3.6.0/rc2/Phase2/Release/llvmCore-3.6.0-rc2.install/bin/clang 
-cc1 -triple armv7-unknown-linux-gnueabihf -emit-obj -disable-free 
-disable-llvm-verifier -main-file-name APFloat.cpp -mrelocation-model 
pic -pic-level 2 -mthread-model posix -fmath-errno -masm-verbose 
-mconstructor-aliases -fuse-init-array -target-cpu cortex-a8 -target-abi 
aapcs-linux -mfloat-abi hard -target-linker-version 2.24.90.20141023 
-dwarf-column-info -ffunction-sections -fdata-sections -coverage-file

But it's a Cortex-A7, not A8, how do I convince the test-release.sh or 
build scripts to make Phase1 clang target Cortex A7 for Phase2? (with 
vfpv4-d16)

Whilst we're at it, I'm not convinced that the Pi2 would make a great 
cross-compilation machine, so is it possible to reduce the enabled 
targets? "X86 Sparc PowerPC ARM AArch64 Mips XCore MSP430 CppBackend 
NVPTX Hexagon SystemZ R600"

Thanks,

Ben