[LLVMdev] build failure on ARM linux

[Nick Lewycky]

I'm seeing this new build failure, starting some time yesterday on ARM:

make[3]: Entering directory `/home/nlewycky/llvm/tools/llvmc/driver'
llvm[3]: Linking Debug executable llvmc
g++ -DLLVMC_BUILTIN_PLUGIN_1=Base -DLLVMC_BUILTIN_PLUGIN_2=Clang
-I/home/nlewycky/llvm/include -I/home/nlewycky/llvm/tools/llvmc/driver
 -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS
-D__STDC_CONSTANT_MACROS -g -fPIC  -Woverloaded-virtual   -pedantic
-Wno-long-long -Wall -W -Wno-unused-parameter -Wwrite-strings
-lCompilerDriver -g  -Wl,-R -Wl,/home/nlewycky/llvm/Debug/bin
-Wl,-export-dynamic -L/home/nlewycky/llvm/Debug/lib
-L/home/nlewycky/llvm/Debug/lib  -o
/home/nlewycky/llvm/Debug/bin/llvmc
/home/nlewycky/llvm/tools/llvmc/driver/Debug/Main.o
-lplugin_llvmc_Base -lplugin_llvmc_Clang \
           -lpthread -ldl -lm
/usr/bin/ld: /home/nlewycky/llvm/Debug/bin/llvmc: hidden symbol
`__sync_val_compare_and_swap_4' in
/usr/lib/gcc/arm-linux-gnueabi/4.3.3/libgcc.a(linux-atomic.o) is
referenced by DSO
/usr/bin/ld: final link failed: Nonrepresentable section on output
collect2: ld returned 1 exit status
make[3]: *** [/home/nlewycky/llvm/Debug/bin/llvmc] Error 1

This is with LLVM being built by the system compiler (GCC 4.3.3-10 Debian).
I'm not sure what to make of this. Would it be due to the atomics used for
mutexes?

Nick
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