minix/lib/libc/arch/powerpc64/sys/cerror.S

39 lines
708 B
ArmAsm
Raw Normal View History

/* $NetBSD: cerror.S,v 1.1 2006/07/01 16:37:20 ross Exp $ */
#include <machine/asm.h>
#include "SYS.h"
#ifndef _REENTRANT
.globl _C_LABEL(errno)
#endif
ENTRY(__cerror)
#ifdef _REENTRANT
mflr %r0
stwu %r1,-16(%r1) # allocate new stack frame
stw %r0,20(%r1)
stw %r31,8(%r1)
mr %r31,%r3 # stash away in callee-saved register
bl PIC_PLT(_C_LABEL(__errno))
stw %r31,0(%r3)
lwz %r0,20(%r1)
lwz %r31,8(%r1)
mtlr %r0
la %r1,16(%r1)
#else
#ifdef PIC
mflr %r10
bl _GLOBAL_OFFSET_TABLE_@local-4
mflr %r4
lwz %r4,_C_LABEL(errno)@got(%r4)
stw %r3,0(%r4)
mtlr %r10
#else
lis %r4,_C_LABEL(errno)@ha
stw %r3,_C_LABEL(errno)@l(%r4)
#endif /* PIC */
#endif /* _REENTRANT */
li %r3,-1
li %r4,-1
blr