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

     1  .syntax unified
     2  .text
     3  .global __unmapself
     4  .type   __unmapself,%function
     5  __unmapself:
     6  	mov r7,#91
     7  	svc 0
     8  	mov r7,#1
     9  	svc 0