On 4/20/2015 5:04 AM, Jonathan Wakely wrote: > On 19 April 2015 at 03:06, Sandra Loosemore wrote: >> Is it one of the standard g++ or libstdc++ test cases that is failing? I >> could check what nios2-elf does with it if I knew what to look for. > Libstdc++ does not use the __sync built-ins in the 4.9 branch, it has > switched to the __atomic ones which should be provided by libatomic, > if that exists for the target. This is with 4.9.2. This is the only RTEMS target giving this error so I must be missing the magic bit of configurery for it.
/users/joel/rtems-4.11-work/rtems-source-builder/rtems/build/nios2-rtems4.11-gcc-4.9.2-newlib-2.2.0.20150323-x86_64-linux-gnu-1/build/nios2-rtems4.11/libstdc++-v3/include/ext/atomicity.h:49: undefined reference to `__sync_fetch_and_add_4' /users/joel/rtems-4.11-work/tools/lib/gcc/nios2-rtems4.11/4.9.2/libstdc++.a(locale-inst.o):/users/joel/rtems-4.11-work/rtems-source-builder/rtems/build/nios2-rtems4.11-gcc-4.9.2-newlib-2.2.0.20150323-x86_64-linux-gnu-1/build/nios2-rtems4.11/libstdc++-v3/include/ext/atomicity.h:49: more undefined references to `__sync_fetch_and_add_4' follow Where should I be looking? -- Joel Sherrill, Ph.D. Director of Research & Development joel.sherr...@oarcorp.com On-Line Applications Research Ask me about RTEMS: a free RTOS Huntsville AL 35805 Support Available (256) 722-9985
