ref: fa095decfa65ce7fa2d03ad6fb1d75640c0803b1 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