github.com/afumu/libc@v0.0.6/musl/src/thread/sh/__unmapself_mmu.s (about)

     1  .text
     2  .global __unmapself_sh_mmu
     3  .hidden __unmapself_sh_mmu
     4  .type   __unmapself_sh_mmu, @function
     5  __unmapself_sh_mmu:
     6  	mov   #91, r3  ! SYS_munmap
     7  	trapa #31
     8  
     9  	or    r0, r0
    10  	or    r0, r0
    11  	or    r0, r0
    12  	or    r0, r0
    13  	or    r0, r0
    14  
    15  	mov   #1, r3   ! SYS_exit
    16  	mov   #0, r4
    17  	trapa #31
    18  
    19  	or    r0, r0
    20  	or    r0, r0
    21  	or    r0, r0
    22  	or    r0, r0
    23  	or    r0, r0