arch/riscv/include/asm/irqflags.h:36: Error: unrecognized opcode `csrc sstatus,2', extension `zicsr' required arch/riscv/include/asm/irqflags.h:24: Error: unrecognized opcode `csrr a5,sstatus', extension `zicsr' required arch/riscv/include/asm/irqflags.h:36: Error: unrecognized opcode `csrc sstatus,2', extension `zicsr' required arch/riscv/include/asm/irqflags.h:24: Error: unrecognized opcode `csrr a5,sstatus', extension `zicsr' required arch/riscv/include/asm/irqflags.h:30: Error: unrecognized opcode `csrs sstatus,2', extension `zicsr' required arch/riscv/include/asm/irqflags.h:24: Error: unrecognized opcode `csrr a5,sstatus', extension `zicsr' required arch/riscv/include/asm/irqflags.h:30: Error: unrecognized opcode `csrs sstatus,2', extension `zicsr' required arch/riscv/include/asm/irqflags.h:30: Error: unrecognized opcode `csrs sstatus,2', extension `zicsr' required arch/riscv/mm/fault.c:249: Error: unrecognized opcode `csrr a3,sptbr', extension `zicsr' required arch/riscv/include/asm/irqflags.h:30: Error: unrecognized opcode `csrs sstatus,2', extension `zicsr' required arch/riscv/kernel/signal.c:175: Error: unrecognized opcode `csrs sstatus,a3', extension `zicsr' required arch/riscv/kernel/signal.c:175: Error: unrecognized opcode `csrc sstatus,a3', extension `zicsr' required arch/riscv/kernel/signal.c:176: Error: unrecognized opcode `csrs sstatus,a3', extension `zicsr' required arch/riscv/kernel/signal.c:176: Error: unrecognized opcode `csrc sstatus,a3', extension `zicsr' required arch/riscv/kernel/signal.c:134: Error: unrecognized opcode `csrs sstatus,a2', extension `zicsr' required arch/riscv/kernel/signal.c:134: Error: unrecognized opcode `csrc sstatus,a2', extension `zicsr' required arch/riscv/kernel/signal.c:73: Error: unrecognized opcode `csrs sstatus,a2', extension `zicsr' required arch/riscv/kernel/signal.c:73: Error: unrecognized opcode `csrc sstatus,a2', extension `zicsr' required