1.set noreorder 2.global __clone 3.hidden __clone 4.type __clone,@function 5__clone: 6 # Save function pointer and argument pointer on new thread stack 7 and $5, $5, -16 # aligning stack to double word 8 subu $5, $5, 16 9 sw $4, 0($5) # save function pointer 10 sw $7, 4($5) # save argument pointer 11 12 # Shuffle (fn,sp,fl,arg,ptid,tls,ctid) to (fl,sp,ptid,tls,ctid) 13 # sys_clone(u64 flags, u64 ustack_base, u64 parent_tidptr, u64 child_tidptr, u64 tls) 14 move $4, $6 15 move $6, $8 16 move $7, $9 17 move $8, $10 18 li $2, 6055 19 syscall 20 beq $7, $0, 1f 21 nop 22 jr $ra 23 subu $2, $0, $2 241: beq $2, $0, 1f 25 nop 26 jr $ra 27 nop 281: lw $25, 0($sp) # function pointer 29 lw $4, 4($sp) # argument pointer 30 jalr $25 # call the user's function 31 nop 32 move $4, $2 33 li $2, 6058 34 syscall 35