minix/lib/libc/arch/powerpc/sys/cerror.S
Lionel Sambuc 84d9c625bf Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)
- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2014-07-28 17:05:06 +02:00

52 lines
1.1 KiB
ArmAsm

/* $NetBSD: cerror.S,v 1.11 2013/09/12 15:36:15 joerg Exp $ */
#include "SYS.h"
#include "assym.h"
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: cerror.S,v 1.11 2013/09/12 15:36:15 joerg Exp $")
#endif /* LIBC_SCCS && !lint */
#ifndef _REENTRANT
.globl _C_LABEL(errno)
#endif
#ifdef __PIC__
.protected _C_LABEL(__cerror)
#endif
ENTRY(__cerror)
#ifdef _REENTRANT
mflr %r0
stwu %r1,-CALLFRAMELEN(%r1) # allocate new stack frame
stw %r0,CALLFRAMELEN+CALLFRAME_LR(%r1)
#ifdef __PIC__
stw %r30,CALLFRAME_R30(%r1)
PIC_TOCSETUP(__cerror, %r30)
#endif
stw %r31,CALLFRAME_R31(%r1)
mr %r31,%r3 # stash away in callee-saved register
bl PIC_PLT(_C_LABEL(__errno))
stw %r31,0(%r3)
lwz %r0,CALLFRAMELEN+CALLFRAME_LR(%r1)
lwz %r31,CALLFRAME_R31(%r1)
#ifdef __PIC__
lwz %r30,CALLFRAME_R30(%r1)
#endif
mtlr %r0
addi %r1,%r1,CALLFRAMELEN
#else
#ifdef __PIC__
mflr %r10
PIC_GOTSETUP(%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
END(__cerror)