2012-09-17 11:09:12 +02:00
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/* $NetBSD: cerror.S,v 1.4 2012/02/27 15:47:11 matt Exp $ */
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2011-02-14 20:36:03 +01:00
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#include <machine/asm.h>
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#include "SYS.h"
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#ifndef _REENTRANT
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.globl _C_LABEL(errno)
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#endif
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2012-09-17 11:09:12 +02:00
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#ifdef PIC
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.protected _C_LABEL(__cerror)
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#endif
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2011-02-14 20:36:03 +01:00
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ENTRY(__cerror)
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#ifdef _REENTRANT
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mflr %r0
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stwu %r1,-16(%r1) # allocate new stack frame
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stw %r0,20(%r1)
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stw %r31,8(%r1)
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mr %r31,%r3 # stash away in callee-saved register
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bl PIC_PLT(_C_LABEL(__errno))
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stw %r31,0(%r3)
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lwz %r0,20(%r1)
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lwz %r31,8(%r1)
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mtlr %r0
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la %r1,16(%r1)
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#else
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#ifdef PIC
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mflr %r10
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bl _GLOBAL_OFFSET_TABLE_@local-4
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mflr %r4
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lwz %r4,_C_LABEL(errno)@got(%r4)
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stw %r3,0(%r4)
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mtlr %r10
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#else
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lis %r4,_C_LABEL(errno)@ha
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stw %r3,_C_LABEL(errno)@l(%r4)
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#endif /* PIC */
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#endif /* _REENTRANT */
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li %r3,-1
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li %r4,-1
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blr
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