ref: f5f5501c8ea833e2e40f4de72b733c4b50fe86dd dir: /src/libc/arch/arm32/linux/_cerrno.s/
.file "_cerrno.s" .globl _cerrno _cerrno: cmp r0,#0 blt 1f bx lr 1: neg r0,r0 ldr r1,=errno str r0,[r1] mov r0,#-1 bx lr