* URCU_ARCH_AARCH64 : All ARM 64 bits variants
* URCU_ARCH_MIPS : All MIPS variants
* URCU_ARCH_NIOS2 : All Intel / Altera NIOS II variants
* URCU_ARCH_AARCH64 : All ARM 64 bits variants
* URCU_ARCH_MIPS : All MIPS variants
* URCU_ARCH_NIOS2 : All Intel / Altera NIOS II variants