ref: e1bc6c3a19ded30fb1affa8dceaeec7d5c0a0951 dir: /src/libc/arch/arm/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