ref: 83fea560c31e90807d9a2fa25a749027812ea17f
dir: /lib/thread/exit+linux-x64.s/
/* const thread.exit : (-> void) */ .globl thread$exit thread$exit: /* munmap(base, size) */ movq $11,%rax /* munmap */ movq %fs:0x08,%rdi /* base */ movq %fs:0x10,%rsi /* stksz */ syscall /* thread_exit(0) */ movq $60,%rax /* exit */ xorq %rdi,%rdi /* 0 */ syscall