1/* $NetBSD: cerror.S,v 1.5 2013/09/12 15:36:15 joerg Exp $ */ 2 3#include <machine/asm.h> 4#include "SYS.h" 5 6#ifndef _REENTRANT 7 .globl _C_LABEL(errno) 8#endif 9#ifdef __PIC__ 10 .protected _C_LABEL(__cerror) 11#endif 12 13ENTRY(__cerror) 14#ifdef _REENTRANT 15 mflr %r0 16 stwu %r1,-16(%r1) # allocate new stack frame 17 stw %r0,20(%r1) 18 stw %r31,8(%r1) 19 mr %r31,%r3 # stash away in callee-saved register 20 bl PIC_PLT(_C_LABEL(__errno)) 21 stw %r31,0(%r3) 22 lwz %r0,20(%r1) 23 lwz %r31,8(%r1) 24 mtlr %r0 25 la %r1,16(%r1) 26#else 27#ifdef __PIC__ 28 mflr %r10 29 bl _GLOBAL_OFFSET_TABLE_@local-4 30 mflr %r4 31 lwz %r4,_C_LABEL(errno)@got(%r4) 32 stw %r3,0(%r4) 33 mtlr %r10 34#else 35 lis %r4,_C_LABEL(errno)@ha 36 stw %r3,_C_LABEL(errno)@l(%r4) 37#endif /* __PIC__ */ 38#endif /* _REENTRANT */ 39 li %r3,-1 40 li %r4,-1 41 blr 42