From c50ce9a4644735c753e07656b095dcd9cb33a924 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Thu, 29 Dec 2005 21:10:34 +0000
Subject: [PATCH] * sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S:

	Move common function to...
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S:
	Move common function to...
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S:
	Move common function to...
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.sym
	(_FRAME_BACKCHAIN, _FRAME_LR_SAVE, _FRAME_PARM_SAVE1,
	_FRAME_PARM_SAVE2, _FRAME_PARM_SAVE3, _FRAME_PARM_SAVE4):
	Remove unrelated stack frame defines.
---
 ChangeLog                                     |  19 +
 .../powerpc/powerpc32/getcontext-common.S     | 284 +++++++
 .../sysv/linux/powerpc/powerpc32/getcontext.S | 374 +---------
 .../powerpc/powerpc32/setcontext-common.S     | 290 ++++++++
 .../sysv/linux/powerpc/powerpc32/setcontext.S | 398 +---------
 .../powerpc/powerpc32/swapcontext-common.S    | 516 +++++++++++++
 .../linux/powerpc/powerpc32/swapcontext.S     | 703 +-----------------
 .../linux/powerpc/powerpc32/ucontext_i.sym    |   8 -
 8 files changed, 1198 insertions(+), 1394 deletions(-)
 create mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S
 create mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
 create mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S

diff --git a/ChangeLog b/ChangeLog
index eacf7e1598..0a954df3c7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,22 @@
+2005-12-26  Steven Munroe  <sjmunroe@us.ibm.com>
+
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S:
+	Move common function to...
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S:
+	New file.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S:
+	Move common function to...
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S:
+	New file.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S:
+	Move common function to...
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S:
+	New file.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.sym
+	(_FRAME_BACKCHAIN, _FRAME_LR_SAVE, _FRAME_PARM_SAVE1,
+	_FRAME_PARM_SAVE2, _FRAME_PARM_SAVE3, _FRAME_PARM_SAVE4):
+	Remove unrelated stack frame defines.
+
 2005-12-29  Ulrich Drepper  <drepper@redhat.com>
 
 	* stdio-common/tstdiomisc.c [FLT_EVAL_METHOD!=2] (dbl_max):
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S
new file mode 100644
index 0000000000..0e04e4bb59
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S
@@ -0,0 +1,284 @@
+/* Save current context, powerpc32 common.
+   Copyright (C) 2005 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA
+   02110-1301 USA.  */
+
+/* This is the common implementation of getcontext for powerpc32.
+   It not complete in itself should be included in to a framework that 
+   defines:
+     __CONTEXT_FUNC_NAME
+   and if appropriate:
+     __CONTEXT_ENABLE_FPRS
+     __CONTEXT_ENABLE_VRS
+   Any archecture that implements the Vector unit is assumed to also 
+   implement the floating unit.  */
+
+/* Stack frame offsets.  */
+#define _FRAME_BACKCHAIN	0
+#define _FRAME_LR_SAVE		4
+#define _FRAME_PARM_SAVE1	8
+#define _FRAME_PARM_SAVE2	12
+#define _FRAME_PARM_SAVE3	16
+#define _FRAME_PARM_SAVE4	20
+
+#ifdef __CONTEXT_ENABLE_VRS
+	.machine	"altivec"
+#endif
+ENTRY(__CONTEXT_FUNC_NAME)
+	stwu	r1,-16(r1)
+/* Insure that the _UC_REGS start on a quadword boundary.  */
+	stw	r3,_FRAME_PARM_SAVE1(r1)
+	addi	r3,r3,_UC_REG_SPACE+12
+	clrrwi  r3,r3,4
+
+/* Save the general purpose registers */
+	stw	r0,_UC_GREGS+(PT_R0*4)(r3)
+	mflr	r0
+	stw	r2,_UC_GREGS+(PT_R2*4)(r3)
+	stw	r4,_UC_GREGS+(PT_R4*4)(r3)
+/* Set the callers LR_SAVE, and the ucontext LR and NIP to the callers
+   return address.  */
+	stw	r0,_UC_GREGS+(PT_LNK*4)(r3)
+	stw	r0,_UC_GREGS+(PT_NIP*4)(r3)
+	stw	r0,_FRAME_LR_SAVE+16(r1)
+	stw	r5,_UC_GREGS+(PT_R5*4)(r3)
+	stw	r6,_UC_GREGS+(PT_R6*4)(r3)
+	stw	r7,_UC_GREGS+(PT_R7*4)(r3)
+	stw	r8,_UC_GREGS+(PT_R8*4)(r3)
+	stw	r9,_UC_GREGS+(PT_R9*4)(r3)
+	stw	r10,_UC_GREGS+(PT_R10*4)(r3)
+	stw	r11,_UC_GREGS+(PT_R11*4)(r3)
+	stw	r12,_UC_GREGS+(PT_R12*4)(r3)
+	stw	r13,_UC_GREGS+(PT_R13*4)(r3)
+	stw	r14,_UC_GREGS+(PT_R14*4)(r3)
+	stw	r15,_UC_GREGS+(PT_R15*4)(r3)
+	stw	r16,_UC_GREGS+(PT_R16*4)(r3)
+	stw	r17,_UC_GREGS+(PT_R17*4)(r3)
+	stw	r18,_UC_GREGS+(PT_R18*4)(r3)
+	stw	r19,_UC_GREGS+(PT_R19*4)(r3)
+	stw	r20,_UC_GREGS+(PT_R20*4)(r3)
+	stw	r21,_UC_GREGS+(PT_R21*4)(r3)
+	stw	r22,_UC_GREGS+(PT_R22*4)(r3)
+	stw	r23,_UC_GREGS+(PT_R23*4)(r3)
+	stw	r24,_UC_GREGS+(PT_R24*4)(r3)
+	stw	r25,_UC_GREGS+(PT_R25*4)(r3)
+	stw	r26,_UC_GREGS+(PT_R26*4)(r3)
+	stw	r27,_UC_GREGS+(PT_R27*4)(r3)
+	stw	r28,_UC_GREGS+(PT_R28*4)(r3)
+	stw	r29,_UC_GREGS+(PT_R29*4)(r3)
+	stw	r30,_UC_GREGS+(PT_R30*4)(r3)
+	stw	r31,_UC_GREGS+(PT_R31*4)(r3)
+/* Save the value of R1.  We had to push the stack before we
+   had the address of uc_reg_space.  So compute the address of
+   the callers stack pointer and save it as R1.  */
+	addi	r8,r1,16
+	li	r0,0
+/* Save the count, exception and condition registers.  */
+	mfctr	r11
+	mfxer	r10
+	mfcr	r9
+	stw	r8,_UC_GREGS+(PT_R1*4)(r3)
+	stw	r11,_UC_GREGS+(PT_CTR*4)(r3)
+	stw	r10,_UC_GREGS+(PT_XER*4)(r3)
+	stw	r9,_UC_GREGS+(PT_CCR*4)(r3)
+/* Set the return value of getcontext to "success".  R3 is the only
+   register whose value is not preserved in the saved context.  */
+	stw	r0,_UC_GREGS+(PT_R3*4)(r3)
+
+/* Zero fill fields that can't be set in user state. */
+	stw	r0,_UC_GREGS+(PT_MSR*4)(r3)
+	stw	r0,_UC_GREGS+(PT_MQ*4)(r3)
+
+#ifdef __CONTEXT_ENABLE_FPRS
+/* Save the floating-point registers */
+	stfd	fp0,_UC_FREGS+(0*8)(r3)
+	stfd	fp1,_UC_FREGS+(1*8)(r3)
+	stfd	fp2,_UC_FREGS+(2*8)(r3)
+	stfd	fp3,_UC_FREGS+(3*8)(r3)
+	stfd	fp4,_UC_FREGS+(4*8)(r3)
+	stfd	fp5,_UC_FREGS+(5*8)(r3)
+	stfd	fp6,_UC_FREGS+(6*8)(r3)
+	stfd	fp7,_UC_FREGS+(7*8)(r3)
+	stfd	fp8,_UC_FREGS+(8*8)(r3)
+	stfd	fp9,_UC_FREGS+(9*8)(r3)
+	stfd	fp10,_UC_FREGS+(10*8)(r3)
+	stfd	fp11,_UC_FREGS+(11*8)(r3)
+	stfd	fp12,_UC_FREGS+(12*8)(r3)
+	stfd	fp13,_UC_FREGS+(13*8)(r3)
+	stfd	fp14,_UC_FREGS+(14*8)(r3)
+	stfd	fp15,_UC_FREGS+(15*8)(r3)
+	stfd	fp16,_UC_FREGS+(16*8)(r3)
+	stfd	fp17,_UC_FREGS+(17*8)(r3)
+	stfd	fp18,_UC_FREGS+(18*8)(r3)
+	stfd	fp19,_UC_FREGS+(19*8)(r3)
+	stfd	fp20,_UC_FREGS+(20*8)(r3)
+	stfd	fp21,_UC_FREGS+(21*8)(r3)
+	stfd	fp22,_UC_FREGS+(22*8)(r3)
+	stfd	fp23,_UC_FREGS+(23*8)(r3)
+	stfd	fp24,_UC_FREGS+(24*8)(r3)
+	stfd	fp25,_UC_FREGS+(25*8)(r3)
+	stfd	fp26,_UC_FREGS+(26*8)(r3)
+	stfd	fp27,_UC_FREGS+(27*8)(r3)
+	stfd	fp28,_UC_FREGS+(28*8)(r3)
+	stfd	fp29,_UC_FREGS+(29*8)(r3)
+	mffs	fp0
+	stfd	fp30,_UC_FREGS+(30*8)(r3)
+	stfd	fp31,_UC_FREGS+(31*8)(r3)
+	stfd	fp0,_UC_FREGS+(32*8)(r3)
+
+# ifdef __CONTEXT_ENABLE_VRS
+#  ifdef PIC
+	mflr    r8
+#   ifdef HAVE_ASM_PPC_REL16
+	bcl	20,31,1f
+1:	mflr	r7
+	addis	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
+	addi	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
+#   else
+	bl      _GLOBAL_OFFSET_TABLE_@local-4
+	mflr    r7
+#   endif
+#   ifdef SHARED
+	lwz     r7,_rtld_global_ro@got(r7)
+	mtlr    r8
+	lwz     r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
+#   else
+	lwz     r7,_dl_hwcap@got(r7)
+	mtlr    r8
+	lwz     r7,0(r7)
+#   endif
+#  else
+	lis	r7,_dl_hwcap@ha
+	lwz     r7,_dl_hwcap@l(r7)
+#  endif
+	andis.	r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
+
+	la	r10,(_UC_VREGS)(r3)
+	la	r9,(_UC_VREGS+16)(r3)
+	
+	beq	2f	/* L(no_vec) */
+/* address of the combined VSCR/VSAVE quadword.  */	
+	la	r8,(_UC_VREGS+512)(r3)
+
+/* Save the vector registers */
+	stvx  v0,0,r10
+	stvx  v1,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+/* We need to get the Vector Status and Control Register early to avoid
+   store order problems later with the VSAVE register that shares the
+   same quadword.  */
+	mfvscr	v0
+
+	stvx  v2,0,r10
+	stvx  v3,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx	v0,0,r8
+	
+	stvx  v4,0,r10
+	stvx  v5,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v6,0,r10
+	stvx  v7,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v8,0,r10
+	stvx  v9,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v10,0,r10
+	stvx  v11,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v12,0,r10
+	stvx  v13,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v14,0,r10
+	stvx  v15,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v16,0,r10
+	stvx  v17,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v18,0,r10
+	stvx  v19,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v20,0,r10
+	stvx  v21,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v22,0,r10
+	stvx  v23,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v24,0,r10
+	stvx  v25,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v26,0,r10
+	stvx  v27,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v28,0,r10
+	stvx  v29,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	mfspr	r0,VRSAVE
+	stvx  v30,0,r10
+	stvx  v31,0,r9
+
+ 	stw	r0,0(r8)
+
+2: /* L(no_vec): */
+# endif
+#endif
+/* We need to set up parms and call sigprocmask which will clobber
+   volatile registers. So before the call we need to retrieve the
+   original ucontext ptr (parm1) from stack and store the UC_REGS_PTR
+   (current R3).  */
+	lwz	r12,_FRAME_PARM_SAVE1(r1)
+	li	r4,0
+	stw	r3,_UC_REGS_PTR(r12)
+	addi	r5,r12,_UC_SIGMASK
+	li	r3,SIG_BLOCK
+	bl	__sigprocmask@local
+
+	lwz	r0,_FRAME_LR_SAVE+16(r1)
+	addi	r1,r1,16
+	mtlr	r0
+	blr
+END(__CONTEXT_FUNC_NAME)
+
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
index 10211458d5..dad1074034 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
@@ -1,5 +1,5 @@
 /* Save current context.
-   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -14,369 +14,53 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA
+   02110-1301 USA.  */
 
 #include <sysdep.h>
 #include <rtld-global-offsets.h>
 #include <shlib-compat.h>
+#include <kernel-features.h>
 
 #define __ASSEMBLY__
 #include <asm/ptrace.h>
 #include "ucontext_i.h"
 
-	.machine	"altivec"
-ENTRY(__getcontext)
-	stwu	r1,-16(r1)
-/* Insure that the _UC_REGS start on a quadword boundary.  */
-	stw	r3,_FRAME_PARM_SAVE1(r1)
-	addi	r3,r3,_UC_REG_SPACE+12
-	clrrwi  r3,r3,4
+#define __CONTEXT_FUNC_NAME __getcontext
+#define __CONTEXT_ENABLE_FPRS 1
+#define __CONTEXT_ENABLE_VRS 1
 
-/* Save the general purpose registers */
-	stw	r0,_UC_GREGS+(PT_R0*4)(r3)
-	mflr	r0
-	stw	r2,_UC_GREGS+(PT_R2*4)(r3)
-	stw	r4,_UC_GREGS+(PT_R4*4)(r3)
-/* Set the callers LR_SAVE, and the ucontext LR and NIP to the callers
-   return address.  */
-	stw	r0,_UC_GREGS+(PT_LNK*4)(r3)
-	stw	r0,_UC_GREGS+(PT_NIP*4)(r3)
-	stw	r0,_FRAME_LR_SAVE+16(r1)
-	stw	r5,_UC_GREGS+(PT_R5*4)(r3)
-	stw	r6,_UC_GREGS+(PT_R6*4)(r3)
-	stw	r7,_UC_GREGS+(PT_R7*4)(r3)
-	stw	r8,_UC_GREGS+(PT_R8*4)(r3)
-	stw	r9,_UC_GREGS+(PT_R9*4)(r3)
-	stw	r10,_UC_GREGS+(PT_R10*4)(r3)
-	stw	r11,_UC_GREGS+(PT_R11*4)(r3)
-	stw	r12,_UC_GREGS+(PT_R12*4)(r3)
-	stw	r13,_UC_GREGS+(PT_R13*4)(r3)
-	stw	r14,_UC_GREGS+(PT_R14*4)(r3)
-	stw	r15,_UC_GREGS+(PT_R15*4)(r3)
-	stw	r16,_UC_GREGS+(PT_R16*4)(r3)
-	stw	r17,_UC_GREGS+(PT_R17*4)(r3)
-	stw	r18,_UC_GREGS+(PT_R18*4)(r3)
-	stw	r19,_UC_GREGS+(PT_R19*4)(r3)
-	stw	r20,_UC_GREGS+(PT_R20*4)(r3)
-	stw	r21,_UC_GREGS+(PT_R21*4)(r3)
-	stw	r22,_UC_GREGS+(PT_R22*4)(r3)
-	stw	r23,_UC_GREGS+(PT_R23*4)(r3)
-	stw	r24,_UC_GREGS+(PT_R24*4)(r3)
-	stw	r25,_UC_GREGS+(PT_R25*4)(r3)
-	stw	r26,_UC_GREGS+(PT_R26*4)(r3)
-	stw	r27,_UC_GREGS+(PT_R27*4)(r3)
-	stw	r28,_UC_GREGS+(PT_R28*4)(r3)
-	stw	r29,_UC_GREGS+(PT_R29*4)(r3)
-	stw	r30,_UC_GREGS+(PT_R30*4)(r3)
-	stw	r31,_UC_GREGS+(PT_R31*4)(r3)
-/* Save the value of R1.  We had to push the stack before we
-   had the address of uc_reg_space.  So compute the address of
-   the callers stack pointer and save it as R1.  */
-	addi	r8,r1,16
-	li	r0,0
-/* Save the count, exception and condition registers.  */
-	mfctr	r11
-	mfxer	r10
-	mfcr	r9
-	stw	r8,_UC_GREGS+(PT_R1*4)(r3)
-	stw	r11,_UC_GREGS+(PT_CTR*4)(r3)
-	stw	r10,_UC_GREGS+(PT_XER*4)(r3)
-	stw	r9,_UC_GREGS+(PT_CCR*4)(r3)
-/* Set the return value of getcontext to "success".  R3 is the only
-   register whose value is not preserved in the saved context.  */
-	stw	r0,_UC_GREGS+(PT_R3*4)(r3)
+/* Size of ucontext in GLIBC_2.3.4 and later.  */
+#define _UC_SIZE_2_3_4	1184
 
-/* Zero fill fields that can't be set in user state. */
-	stw	r0,_UC_GREGS+(PT_MSR*4)(r3)
-	stw	r0,_UC_GREGS+(PT_MQ*4)(r3)
-
-/* Save the floating-point registers */
-	stfd	fp0,_UC_FREGS+(0*8)(r3)
-	stfd	fp1,_UC_FREGS+(1*8)(r3)
-	stfd	fp2,_UC_FREGS+(2*8)(r3)
-	stfd	fp3,_UC_FREGS+(3*8)(r3)
-	stfd	fp4,_UC_FREGS+(4*8)(r3)
-	stfd	fp5,_UC_FREGS+(5*8)(r3)
-	stfd	fp6,_UC_FREGS+(6*8)(r3)
-	stfd	fp7,_UC_FREGS+(7*8)(r3)
-	stfd	fp8,_UC_FREGS+(8*8)(r3)
-	stfd	fp9,_UC_FREGS+(9*8)(r3)
-	stfd	fp10,_UC_FREGS+(10*8)(r3)
-	stfd	fp11,_UC_FREGS+(11*8)(r3)
-	stfd	fp12,_UC_FREGS+(12*8)(r3)
-	stfd	fp13,_UC_FREGS+(13*8)(r3)
-	stfd	fp14,_UC_FREGS+(14*8)(r3)
-	stfd	fp15,_UC_FREGS+(15*8)(r3)
-	stfd	fp16,_UC_FREGS+(16*8)(r3)
-	stfd	fp17,_UC_FREGS+(17*8)(r3)
-	stfd	fp18,_UC_FREGS+(18*8)(r3)
-	stfd	fp19,_UC_FREGS+(19*8)(r3)
-	stfd	fp20,_UC_FREGS+(20*8)(r3)
-	stfd	fp21,_UC_FREGS+(21*8)(r3)
-	stfd	fp22,_UC_FREGS+(22*8)(r3)
-	stfd	fp23,_UC_FREGS+(23*8)(r3)
-	stfd	fp24,_UC_FREGS+(24*8)(r3)
-	stfd	fp25,_UC_FREGS+(25*8)(r3)
-	stfd	fp26,_UC_FREGS+(26*8)(r3)
-	stfd	fp27,_UC_FREGS+(27*8)(r3)
-	stfd	fp28,_UC_FREGS+(28*8)(r3)
-	stfd	fp29,_UC_FREGS+(29*8)(r3)
-	mffs	fp0
-	stfd	fp30,_UC_FREGS+(30*8)(r3)
-	stfd	fp31,_UC_FREGS+(31*8)(r3)
-	stfd	fp0,_UC_FREGS+(32*8)(r3)
-
-#ifdef PIC
-	mflr    r8
-# ifdef HAVE_ASM_PPC_REL16
-	bcl	20,31,1f
-1:	mflr	r7
-	addis	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
-	addi	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
-# else
-	bl      _GLOBAL_OFFSET_TABLE_@local-4
-	mflr    r7
-# endif
-# ifdef SHARED
-	lwz     r7,_rtld_global_ro@got(r7)
-	mtlr    r8
-	lwz     r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
-# else
-	lwz     r7,_dl_hwcap@got(r7)
-	mtlr    r8
-	lwz     r7,0(r7)
-# endif
-#else
-	lis	r7,_dl_hwcap@ha
-	lwz     r7,_dl_hwcap@l(r7)
-#endif
-	andis.	r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
-
-	la	r10,(_UC_VREGS)(r3)
-	la	r9,(_UC_VREGS+16)(r3)
-	
-	beq	L(no_vec)
-/* address of the combined VSCR/VSAVE quadword.  */	
-	la	r8,(_UC_VREGS+512)(r3)
-
-/* Save the vector registers */
-	stvx  v0,0,r10
-	stvx  v1,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-/* We need to get the Vector Status and Control Register early to avoid
-   store order problems later with the VSAVE register that shares the
-   same quadword.  */
-	mfvscr	v0
-
-	stvx  v2,0,r10
-	stvx  v3,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx	v0,0,r8
-	
-	stvx  v4,0,r10
-	stvx  v5,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v6,0,r10
-	stvx  v7,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v8,0,r10
-	stvx  v9,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v10,0,r10
-	stvx  v11,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v12,0,r10
-	stvx  v13,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v14,0,r10
-	stvx  v15,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v16,0,r10
-	stvx  v17,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v18,0,r10
-	stvx  v19,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v20,0,r10
-	stvx  v21,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v22,0,r10
-	stvx  v23,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v24,0,r10
-	stvx  v25,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v26,0,r10
-	stvx  v27,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v28,0,r10
-	stvx  v29,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	mfspr	r0,VRSAVE
-	stvx  v30,0,r10
-	stvx  v31,0,r9
-
- 	stw	r0,0(r8)
-
-L(no_vec):
-/* We need to set up parms and call sigprocmask which will clobber
-   volatile registers. So before the call we need to retrieve the
-   original ucontext ptr (parm1) from stack and store the UC_REGS_PTR
-   (current R3).  */
-	lwz	r12,_FRAME_PARM_SAVE1(r1)
+#ifdef __ASSUME_SWAPCONTEXT_SYSCALL
+	.section ".text";
+ENTRY (__getcontext)
 	li	r4,0
-	stw	r3,_UC_REGS_PTR(r12)
-	addi	r5,r12,_UC_SIGMASK
-	li	r3,SIG_BLOCK
-	bl	__sigprocmask@local
-
-	lwz	r0,_FRAME_LR_SAVE+16(r1)
-	addi	r1,r1,16
-	mtlr	r0
+	li	r5,_UC_SIZE_2_3_4;
+	DO_CALL (SYS_ify (swapcontext));
+	bso-	cr0,1f
+/* the kernel does not set the return code for the success case */
+	li	r3,0
 	blr
+1:
+	b	__syscall_error@local
 END(__getcontext)
+#else
+# include "getcontext-common.S"
+#endif
 
 versioned_symbol (libc, __getcontext, getcontext, GLIBC_2_3_4)
 
 #if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
-
 	compat_text_section
-ENTRY(__novec_getcontext)
-	/*
-	 * Since we are not attempting to save the altivec registers,
-	 * there is no need to get the register storage space
-	 * aligned on a 16-byte boundary.
-	 */
-	addi	r3,r3,_UC_REG_SPACE
-	stw	r3,_UC_REGS_PTR - _UC_REG_SPACE(r3)
-	stw	r0,_UC_GREGS+(PT_R0*4)(r3)
-	stw	r1,_UC_GREGS+(PT_R1*4)(r3)
-	mflr	r0
-	stwu	r1,-16(r1)
-	stw	r0,20(r1)
-	stw	r0,_UC_GREGS+(PT_LNK*4)(r3)
-	stw	r0,_UC_GREGS+(PT_NIP*4)(r3)
-	stw	r2,_UC_GREGS+(PT_R2*4)(r3)
-	stw	r4,_UC_GREGS+(PT_R4*4)(r3)
-	stw	r5,_UC_GREGS+(PT_R5*4)(r3)
-	stw	r6,_UC_GREGS+(PT_R6*4)(r3)
-	stw	r7,_UC_GREGS+(PT_R7*4)(r3)
-	stw	r8,_UC_GREGS+(PT_R8*4)(r3)
-	stw	r9,_UC_GREGS+(PT_R9*4)(r3)
-	stw	r10,_UC_GREGS+(PT_R10*4)(r3)
-	stw	r11,_UC_GREGS+(PT_R11*4)(r3)
-	stw	r12,_UC_GREGS+(PT_R12*4)(r3)
-	stw	r13,_UC_GREGS+(PT_R13*4)(r3)
-	stw	r14,_UC_GREGS+(PT_R14*4)(r3)
-	stw	r15,_UC_GREGS+(PT_R15*4)(r3)
-	stw	r16,_UC_GREGS+(PT_R16*4)(r3)
-	stw	r17,_UC_GREGS+(PT_R17*4)(r3)
-	stw	r18,_UC_GREGS+(PT_R18*4)(r3)
-	stw	r19,_UC_GREGS+(PT_R19*4)(r3)
-	stw	r20,_UC_GREGS+(PT_R20*4)(r3)
-	stw	r21,_UC_GREGS+(PT_R21*4)(r3)
-	stw	r22,_UC_GREGS+(PT_R22*4)(r3)
-	stw	r23,_UC_GREGS+(PT_R23*4)(r3)
-	stw	r24,_UC_GREGS+(PT_R24*4)(r3)
-	stw	r25,_UC_GREGS+(PT_R25*4)(r3)
-	stw	r26,_UC_GREGS+(PT_R26*4)(r3)
-	stw	r27,_UC_GREGS+(PT_R27*4)(r3)
-	stw	r28,_UC_GREGS+(PT_R28*4)(r3)
-	stw	r29,_UC_GREGS+(PT_R29*4)(r3)
-	stw	r30,_UC_GREGS+(PT_R30*4)(r3)
-	stw	r31,_UC_GREGS+(PT_R31*4)(r3)
-	mfctr	r0
-	stw	r0,_UC_GREGS+(PT_CTR*4)(r3)
-	mfxer	r0
-	stw	r0,_UC_GREGS+(PT_XER*4)(r3)
-	mfcr	r0
-	stw	r0,_UC_GREGS+(PT_CCR*4)(r3)
+	
+# undef __CONTEXT_FUNC_NAME	
+# define __CONTEXT_FUNC_NAME __novec_getcontext
+# undef __CONTEXT_ENABLE_VRS
 
-	/* Set the return value of getcontext to "success".  R3 is the only
-	   register whose value is not preserved in the saved context.  */
-	li	r0,0
-	stw	r0,_UC_GREGS+(PT_R3*4)(r3)
+# clude "getcontext-common.S"
 
-	/* Zero fill fields that can't be set in user state. */
-	stw	r0,_UC_GREGS+(PT_MSR*4)(r3)
-	stw	r0,_UC_GREGS+(PT_MQ*4)(r3)
-
-	/* Save the floating-point registers */
-	stfd	fp0,_UC_FREGS+(0*8)(r3)
-	stfd	fp1,_UC_FREGS+(1*8)(r3)
-	stfd	fp2,_UC_FREGS+(2*8)(r3)
-	stfd	fp3,_UC_FREGS+(3*8)(r3)
-	stfd	fp4,_UC_FREGS+(4*8)(r3)
-	stfd	fp5,_UC_FREGS+(5*8)(r3)
-	stfd	fp6,_UC_FREGS+(6*8)(r3)
-	stfd	fp7,_UC_FREGS+(7*8)(r3)
-	stfd	fp8,_UC_FREGS+(8*8)(r3)
-	stfd	fp9,_UC_FREGS+(9*8)(r3)
-	stfd	fp10,_UC_FREGS+(10*8)(r3)
-	stfd	fp11,_UC_FREGS+(11*8)(r3)
-	stfd	fp12,_UC_FREGS+(12*8)(r3)
-	stfd	fp13,_UC_FREGS+(13*8)(r3)
-	stfd	fp14,_UC_FREGS+(14*8)(r3)
-	stfd	fp15,_UC_FREGS+(15*8)(r3)
-	stfd	fp16,_UC_FREGS+(16*8)(r3)
-	stfd	fp17,_UC_FREGS+(17*8)(r3)
-	stfd	fp18,_UC_FREGS+(18*8)(r3)
-	stfd	fp19,_UC_FREGS+(19*8)(r3)
-	stfd	fp20,_UC_FREGS+(20*8)(r3)
-	stfd	fp21,_UC_FREGS+(21*8)(r3)
-	stfd	fp22,_UC_FREGS+(22*8)(r3)
-	stfd	fp23,_UC_FREGS+(23*8)(r3)
-	stfd	fp24,_UC_FREGS+(24*8)(r3)
-	stfd	fp25,_UC_FREGS+(25*8)(r3)
-	stfd	fp26,_UC_FREGS+(26*8)(r3)
-	stfd	fp27,_UC_FREGS+(27*8)(r3)
-	stfd	fp28,_UC_FREGS+(28*8)(r3)
-	stfd	fp29,_UC_FREGS+(29*8)(r3)
-	mffs	fp0
-	stfd	fp30,_UC_FREGS+(30*8)(r3)
-	stfd	fp31,_UC_FREGS+(31*8)(r3)
-	stfd	fp0,_UC_FREGS+(32*8)(r3)
-
-	addi	r5,r3,_UC_SIGMASK - _UC_REG_SPACE
-	li	r4,0
-	li	r3,SIG_BLOCK
-	bl	__sigprocmask@local
-
-	lwz	r0,20(r1)
-	addi	r1,r1,16
-	mtlr	r0
-	blr
-END(__novec_getcontext)
 	.previous
 
 compat_symbol (libc, __novec_getcontext, getcontext, GLIBC_2_3_3)
@@ -385,8 +69,8 @@ compat_symbol (libc, __novec_getcontext, getcontext, GLIBC_2_3_3)
 
 #if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
 
-#define _ERRNO_H	1
-#include <bits/errno.h>
+# define _ERRNO_H	1
+# include <bits/errno.h>
 
 	compat_text_section
 ENTRY (__getcontext_stub)
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
new file mode 100644
index 0000000000..c71fcd73d5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
@@ -0,0 +1,290 @@
+/* Jump to a new context powerpc32 common.
+   Copyright (C) 2005 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA
+   02110-1301 USA.  */
+
+/* This is the common implementation of setcontext for powerpc32.
+   It not complete in itself should be included in to a framework that 
+   defines:
+     __CONTEXT_FUNC_NAME
+   and if appropriate:
+     __CONTEXT_ENABLE_FPRS
+     __CONTEXT_ENABLE_VRS
+   Any archecture that implements the Vector unit is assumed to also 
+   implement the floating unit.  */
+
+/* Stack frame offsets.  */
+#define _FRAME_BACKCHAIN	0
+#define _FRAME_LR_SAVE		4
+#define _FRAME_PARM_SAVE1	8
+#define _FRAME_PARM_SAVE2	12
+#define _FRAME_PARM_SAVE3	16
+#define _FRAME_PARM_SAVE4	20
+
+#ifdef __CONTEXT_ENABLE_VRS
+	.machine	"altivec"
+#endif
+ENTRY(__CONTEXT_FUNC_NAME)
+	mflr	r0
+	stwu	r1,-16(r1)
+	stw	r0,20(r1)
+	stw	r31,12(r1)
+	lwz	r31,_UC_REGS_PTR(r3)
+
+	/*
+	 * If this ucontext refers to the point where we were interrupted
+	 * by a signal, we have to use the rt_sigreturn system call to
+	 * return to the context so we get both LR and CTR restored.
+	 *
+	 * Otherwise, the context we are restoring is either just after
+	 * a procedure call (getcontext/swapcontext) or at the beginning
+	 * of a procedure call (makecontext), so we don't need to restore
+	 * r0, xer, ctr.  We don't restore r2 since it will be used as
+	 * the TLS pointer.
+	 */
+	lwz	r0,_UC_GREGS+(PT_MSR*4)(r31)
+	cmpwi	r0,0
+	bne	4f	/* L(do_sigret) */
+
+	/* Restore the signal mask */
+	li	r5,0
+	addi	r4,r3,_UC_SIGMASK
+	li	r3,SIG_SETMASK
+	bl	__sigprocmask@local
+	cmpwi	r3,0
+	bne	3f	/* L(error_exit) */
+
+#ifdef __CONTEXT_ENABLE_FPRS
+# ifdef __CONTEXT_ENABLE_VRS
+#  ifdef PIC
+	mflr    r8
+#   ifdef HAVE_ASM_PPC_REL16
+	bcl	20,31,1f
+1:	mflr	r7
+	addis	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
+	addi	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
+#   else
+	bl      _GLOBAL_OFFSET_TABLE_@local-4
+	mflr    r7
+#   endif
+#   ifdef SHARED
+	lwz     r7,_rtld_global_ro@got(r7)
+	mtlr    r8
+	lwz     r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
+#   else
+	lwz     r7,_dl_hwcap@got(r7)
+	mtlr    r8
+	lwz     r7,0(r7)
+#   endif
+#  else
+	lis	r7,_dl_hwcap@ha
+	lwz     r7,_dl_hwcap@l(r7)
+#  endif
+	andis.	r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
+	la	r10,(_UC_VREGS)(r31)
+	beq	2f	/* L(has_no_vec) */
+
+	lwz   r0,(32*16)(r10)
+	li    r9,(32*16)
+	cmpwi r0,0
+	mtspr VRSAVE,r0
+	beq	2f	/* L(has_no_vec) */
+
+	lvx   v19,r9,r10
+	la    r9,(16)(r10)
+
+	lvx   v0,0,r10
+	lvx   v1,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	mtvscr  v19
+	lvx   v2,0,r10
+	lvx   v3,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v4,0,r10
+	lvx   v5,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v6,0,r10
+	lvx   v7,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v8,0,r10
+	lvx   v9,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v10,0,r10
+	lvx   v11,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v12,0,r10
+	lvx   v13,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v14,0,r10
+	lvx   v15,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v16,0,r10
+	lvx   v17,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v18,0,r10
+	lvx   v19,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v20,0,r10
+	lvx   v21,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v22,0,r10
+	lvx   v23,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v24,0,r10
+	lvx   v25,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v26,0,r10
+	lvx   v27,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v28,0,r10
+	lvx   v29,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v30,0,r10
+	lvx   v31,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v10,0,r10
+	lvx   v11,0,r9
+
+2: /* L(has_no_vec): */
+# endif /* __CONTEXT_ENABLE_VRS */
+	/* Restore the floating-point registers */
+	lfd	fp31,_UC_FREGS+(32*8)(r31)
+	lfd	fp0,_UC_FREGS+(0*8)(r31)
+	mtfsf	0xff,fp31
+	lfd	fp1,_UC_FREGS+(1*8)(r31)
+	lfd	fp2,_UC_FREGS+(2*8)(r31)
+	lfd	fp3,_UC_FREGS+(3*8)(r31)
+	lfd	fp4,_UC_FREGS+(4*8)(r31)
+	lfd	fp5,_UC_FREGS+(5*8)(r31)
+	lfd	fp6,_UC_FREGS+(6*8)(r31)
+	lfd	fp7,_UC_FREGS+(7*8)(r31)
+	lfd	fp8,_UC_FREGS+(8*8)(r31)
+	lfd	fp9,_UC_FREGS+(9*8)(r31)
+	lfd	fp10,_UC_FREGS+(10*8)(r31)
+	lfd	fp11,_UC_FREGS+(11*8)(r31)
+	lfd	fp12,_UC_FREGS+(12*8)(r31)
+	lfd	fp13,_UC_FREGS+(13*8)(r31)
+	lfd	fp14,_UC_FREGS+(14*8)(r31)
+	lfd	fp15,_UC_FREGS+(15*8)(r31)
+	lfd	fp16,_UC_FREGS+(16*8)(r31)
+	lfd	fp17,_UC_FREGS+(17*8)(r31)
+	lfd	fp18,_UC_FREGS+(18*8)(r31)
+	lfd	fp19,_UC_FREGS+(19*8)(r31)
+	lfd	fp20,_UC_FREGS+(20*8)(r31)
+	lfd	fp21,_UC_FREGS+(21*8)(r31)
+	lfd	fp22,_UC_FREGS+(22*8)(r31)
+	lfd	fp23,_UC_FREGS+(23*8)(r31)
+	lfd	fp24,_UC_FREGS+(24*8)(r31)
+	lfd	fp25,_UC_FREGS+(25*8)(r31)
+	lfd	fp26,_UC_FREGS+(26*8)(r31)
+	lfd	fp27,_UC_FREGS+(27*8)(r31)
+	lfd	fp28,_UC_FREGS+(28*8)(r31)
+	lfd	fp29,_UC_FREGS+(29*8)(r31)
+	lfd	fp30,_UC_FREGS+(30*8)(r31)
+	lfd	fp31,_UC_FREGS+(31*8)(r31)
+#endif /* __CONTEXT_ENABLE_FPRS */
+
+	/* Restore LR and CCR, and set CTR to the NIP value */
+	lwz	r3,_UC_GREGS+(PT_LNK*4)(r31)
+	lwz	r4,_UC_GREGS+(PT_NIP*4)(r31)
+	lwz	r5,_UC_GREGS+(PT_CCR*4)(r31)
+	mtlr	r3
+	mtctr	r4
+	mtcr	r5
+
+	/* Restore the general registers */
+	lwz	r1,_UC_GREGS+(PT_R1*4)(r31)
+	lwz	r3,_UC_GREGS+(PT_R3*4)(r31)
+	lwz	r4,_UC_GREGS+(PT_R4*4)(r31)
+	lwz	r5,_UC_GREGS+(PT_R5*4)(r31)
+	lwz	r6,_UC_GREGS+(PT_R6*4)(r31)
+	lwz	r7,_UC_GREGS+(PT_R7*4)(r31)
+	lwz	r8,_UC_GREGS+(PT_R8*4)(r31)
+	lwz	r9,_UC_GREGS+(PT_R9*4)(r31)
+	lwz	r10,_UC_GREGS+(PT_R10*4)(r31)
+	lwz	r11,_UC_GREGS+(PT_R11*4)(r31)
+	lwz	r12,_UC_GREGS+(PT_R12*4)(r31)
+	lwz	r13,_UC_GREGS+(PT_R13*4)(r31)
+	lwz	r14,_UC_GREGS+(PT_R14*4)(r31)
+	lwz	r15,_UC_GREGS+(PT_R15*4)(r31)
+	lwz	r16,_UC_GREGS+(PT_R16*4)(r31)
+	lwz	r17,_UC_GREGS+(PT_R17*4)(r31)
+	lwz	r18,_UC_GREGS+(PT_R18*4)(r31)
+	lwz	r19,_UC_GREGS+(PT_R19*4)(r31)
+	lwz	r20,_UC_GREGS+(PT_R20*4)(r31)
+	lwz	r21,_UC_GREGS+(PT_R21*4)(r31)
+	lwz	r22,_UC_GREGS+(PT_R22*4)(r31)
+	lwz	r23,_UC_GREGS+(PT_R23*4)(r31)
+	lwz	r24,_UC_GREGS+(PT_R24*4)(r31)
+	lwz	r25,_UC_GREGS+(PT_R25*4)(r31)
+	lwz	r26,_UC_GREGS+(PT_R26*4)(r31)
+	lwz	r27,_UC_GREGS+(PT_R27*4)(r31)
+	lwz	r28,_UC_GREGS+(PT_R28*4)(r31)
+	lwz	r29,_UC_GREGS+(PT_R29*4)(r31)
+	lwz	r30,_UC_GREGS+(PT_R30*4)(r31)
+	lwz	r31,_UC_GREGS+(PT_R31*4)(r31)
+
+	bctr
+
+3: /* L(error_exit): */
+	lwz	r31,12(r1)
+	lwz	r0,20(r1)
+	addi	r1,r1,16
+	mtlr	r0
+	blr
+
+
+4: /* L(do_sigret): */
+	addi	r1,r3,-0xd0
+	li	r0,SYS_ify(rt_sigreturn)
+	sc
+	/* NOTREACHED */
+
+END (__CONTEXT_FUNC_NAME)
+
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
index eff60f9bbf..7e9213c2d6 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
@@ -1,5 +1,5 @@
 /* Jump to a new context.
-   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -14,8 +14,8 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA
+   02110-1301 USA.  */
 
 #include <sysdep.h>
 #include <rtld-global-offsets.h>
@@ -25,379 +25,43 @@
 #include <asm/ptrace.h>
 #include "ucontext_i.h"
 
-	.machine	"altivec"
-ENTRY(__setcontext)
-	mflr	r0
-	stwu	r1,-16(r1)
-	stw	r0,20(r1)
-	stw	r31,12(r1)
-	lwz	r31,_UC_REGS_PTR(r3)
+#define __CONTEXT_FUNC_NAME __setcontext
+#define __CONTEXT_ENABLE_FPRS 1
+#define __CONTEXT_ENABLE_VRS 1
 
-	/*
-	 * If this ucontext refers to the point where we were interrupted
-	 * by a signal, we have to use the rt_sigreturn system call to
-	 * return to the context so we get both LR and CTR restored.
-	 *
-	 * Otherwise, the context we are restoring is either just after
-	 * a procedure call (getcontext/swapcontext) or at the beginning
-	 * of a procedure call (makecontext), so we don't need to restore
-	 * r0, xer, ctr.  We don't restore r2 since it will be used as
-	 * the TLS pointer.
-	 */
-	lwz	r0,_UC_GREGS+(PT_MSR*4)(r31)
-	cmpwi	r0,0
-	bne	L(do_sigret)
+/* Size of ucontext in GLIBC_2.3.4 and later.  */
+#define _UC_SIZE_2_3_4	1184
 
-	/* Restore the signal mask */
-	li	r5,0
-	addi	r4,r3,_UC_SIGMASK
-	li	r3,SIG_SETMASK
-	bl	__sigprocmask@local
-	cmpwi	r3,0
-	bne	L(error_exit)
-
-#ifdef PIC
-	mflr    r8
-# ifdef HAVE_ASM_PPC_REL16
-	bcl	20,31,1f
-1:	mflr	r7
-	addis	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
-	addi	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
-# else
-	bl      _GLOBAL_OFFSET_TABLE_@local-4
-	mflr    r7
-# endif
-# ifdef SHARED
-	lwz     r7,_rtld_global_ro@got(r7)
-	mtlr    r8
-	lwz     r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
-# else
-	lwz     r7,_dl_hwcap@got(r7)
-	mtlr    r8
-	lwz     r7,0(r7)
-# endif
-#else
-	lis	r7,_dl_hwcap@ha
-	lwz     r7,_dl_hwcap@l(r7)
-#endif
-	andis.	r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
-	la	r10,(_UC_VREGS)(r31)
-	beq	L(has_no_vec)
-
-	lwz   r0,(32*16)(r10)
-	li    r9,(32*16)
-	cmpwi r0,0
-	mtspr VRSAVE,r0
-	beq   L(has_no_vec)
-
-	lvx   v19,r9,r10
-	la    r9,(16)(r10)
-
-	lvx   v0,0,r10
-	lvx   v1,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	mtvscr  v19
-	lvx   v2,0,r10
-	lvx   v3,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v4,0,r10
-	lvx   v5,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v6,0,r10
-	lvx   v7,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v8,0,r10
-	lvx   v9,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v10,0,r10
-	lvx   v11,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v12,0,r10
-	lvx   v13,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v14,0,r10
-	lvx   v15,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v16,0,r10
-	lvx   v17,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v18,0,r10
-	lvx   v19,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v20,0,r10
-	lvx   v21,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v22,0,r10
-	lvx   v23,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v24,0,r10
-	lvx   v25,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v26,0,r10
-	lvx   v27,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v28,0,r10
-	lvx   v29,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v30,0,r10
-	lvx   v31,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v10,0,r10
-	lvx   v11,0,r9
-
-L(has_no_vec):
-	/* Restore the floating-point registers */
-	lfd	fp31,_UC_FREGS+(32*8)(r31)
-	lfd	fp0,_UC_FREGS+(0*8)(r31)
-	mtfsf	0xff,fp31
-	lfd	fp1,_UC_FREGS+(1*8)(r31)
-	lfd	fp2,_UC_FREGS+(2*8)(r31)
-	lfd	fp3,_UC_FREGS+(3*8)(r31)
-	lfd	fp4,_UC_FREGS+(4*8)(r31)
-	lfd	fp5,_UC_FREGS+(5*8)(r31)
-	lfd	fp6,_UC_FREGS+(6*8)(r31)
-	lfd	fp7,_UC_FREGS+(7*8)(r31)
-	lfd	fp8,_UC_FREGS+(8*8)(r31)
-	lfd	fp9,_UC_FREGS+(9*8)(r31)
-	lfd	fp10,_UC_FREGS+(10*8)(r31)
-	lfd	fp11,_UC_FREGS+(11*8)(r31)
-	lfd	fp12,_UC_FREGS+(12*8)(r31)
-	lfd	fp13,_UC_FREGS+(13*8)(r31)
-	lfd	fp14,_UC_FREGS+(14*8)(r31)
-	lfd	fp15,_UC_FREGS+(15*8)(r31)
-	lfd	fp16,_UC_FREGS+(16*8)(r31)
-	lfd	fp17,_UC_FREGS+(17*8)(r31)
-	lfd	fp18,_UC_FREGS+(18*8)(r31)
-	lfd	fp19,_UC_FREGS+(19*8)(r31)
-	lfd	fp20,_UC_FREGS+(20*8)(r31)
-	lfd	fp21,_UC_FREGS+(21*8)(r31)
-	lfd	fp22,_UC_FREGS+(22*8)(r31)
-	lfd	fp23,_UC_FREGS+(23*8)(r31)
-	lfd	fp24,_UC_FREGS+(24*8)(r31)
-	lfd	fp25,_UC_FREGS+(25*8)(r31)
-	lfd	fp26,_UC_FREGS+(26*8)(r31)
-	lfd	fp27,_UC_FREGS+(27*8)(r31)
-	lfd	fp28,_UC_FREGS+(28*8)(r31)
-	lfd	fp29,_UC_FREGS+(29*8)(r31)
-	lfd	fp30,_UC_FREGS+(30*8)(r31)
-	lfd	fp31,_UC_FREGS+(31*8)(r31)
-
-	/* Restore LR and CCR, and set CTR to the NIP value */
-	lwz	r3,_UC_GREGS+(PT_LNK*4)(r31)
-	lwz	r4,_UC_GREGS+(PT_NIP*4)(r31)
-	lwz	r5,_UC_GREGS+(PT_CCR*4)(r31)
-	mtlr	r3
-	mtctr	r4
-	mtcr	r5
-
-	/* Restore the general registers */
-	lwz	r1,_UC_GREGS+(PT_R1*4)(r31)
-	lwz	r3,_UC_GREGS+(PT_R3*4)(r31)
-	lwz	r4,_UC_GREGS+(PT_R4*4)(r31)
-	lwz	r5,_UC_GREGS+(PT_R5*4)(r31)
-	lwz	r6,_UC_GREGS+(PT_R6*4)(r31)
-	lwz	r7,_UC_GREGS+(PT_R7*4)(r31)
-	lwz	r8,_UC_GREGS+(PT_R8*4)(r31)
-	lwz	r9,_UC_GREGS+(PT_R9*4)(r31)
-	lwz	r10,_UC_GREGS+(PT_R10*4)(r31)
-	lwz	r11,_UC_GREGS+(PT_R11*4)(r31)
-	lwz	r12,_UC_GREGS+(PT_R12*4)(r31)
-	lwz	r13,_UC_GREGS+(PT_R13*4)(r31)
-	lwz	r14,_UC_GREGS+(PT_R14*4)(r31)
-	lwz	r15,_UC_GREGS+(PT_R15*4)(r31)
-	lwz	r16,_UC_GREGS+(PT_R16*4)(r31)
-	lwz	r17,_UC_GREGS+(PT_R17*4)(r31)
-	lwz	r18,_UC_GREGS+(PT_R18*4)(r31)
-	lwz	r19,_UC_GREGS+(PT_R19*4)(r31)
-	lwz	r20,_UC_GREGS+(PT_R20*4)(r31)
-	lwz	r21,_UC_GREGS+(PT_R21*4)(r31)
-	lwz	r22,_UC_GREGS+(PT_R22*4)(r31)
-	lwz	r23,_UC_GREGS+(PT_R23*4)(r31)
-	lwz	r24,_UC_GREGS+(PT_R24*4)(r31)
-	lwz	r25,_UC_GREGS+(PT_R25*4)(r31)
-	lwz	r26,_UC_GREGS+(PT_R26*4)(r31)
-	lwz	r27,_UC_GREGS+(PT_R27*4)(r31)
-	lwz	r28,_UC_GREGS+(PT_R28*4)(r31)
-	lwz	r29,_UC_GREGS+(PT_R29*4)(r31)
-	lwz	r30,_UC_GREGS+(PT_R30*4)(r31)
-	lwz	r31,_UC_GREGS+(PT_R31*4)(r31)
-
-	bctr
-
-L(error_exit):
-	lwz	r31,12(r1)
-	lwz	r0,20(r1)
-	addi	r1,r1,16
-	mtlr	r0
+#ifdef __ASSUME_SWAPCONTEXT_SYSCALL
+	.section ".text";
+ENTRY (__setcontext)
+	mr	r4,r3
+	li	r3,0
+	li	r5,_UC_SIZE_2_3_4;
+	DO_CALL (SYS_ify (swapcontext));
+	bso-	cr0,1f
+/* the kernel does not set the return code for the success case */
+	li	r3,0
 	blr
-
-L(do_sigret):
-	addi	r1,r3,-0xd0
-	li	r0,SYS_ify(rt_sigreturn)
-	sc
-	/* NOTREACHED */
-
-END (__setcontext)
+1:
+	b	__syscall_error@local
+END(__setcontext)
+#else
+# include "setcontext-common.S"
+#endif
 
 versioned_symbol (libc, __setcontext, setcontext, GLIBC_2_3_4)
 
 #if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
 
 	compat_text_section
-ENTRY(__novec_setcontext)
-	mflr	r0
-	stwu	r1,-16(r1)
-	stw	r0,20(r1)
-	stw	r31,12(r1)
-	lwz	r31,_UC_REGS_PTR(r3)
+	
+# undef __CONTEXT_FUNC_NAME	
+# define __CONTEXT_FUNC_NAME __novec_setcontext
+# undef __CONTEXT_ENABLE_VRS
 
-	/*
-	 * If this ucontext refers to the point where we were interrupted
-	 * by a signal, we have to use the rt_sigreturn system call to
-	 * return to the context so we get both LR and CTR restored.
-	 *
-	 * Otherwise, the context we are restoring is either just after
-	 * a procedure call (getcontext/swapcontext) or at the beginning
-	 * of a procedure call (makecontext), so we don't need to restore
-	 * r0, xer, ctr.  We don't restore r2 since it will be used as
-	 * the TLS pointer.
-	 */
-	lwz	r0,_UC_GREGS+(PT_MSR*4)(r31)
-	cmpwi	r0,0
-	bne	L(novec_do_sigret)
+# include "setcontext-common.S"
 
-	/* Restore the signal mask */
-	li	r5,0
-	addi	r4,r3,_UC_SIGMASK
-	li	r3,SIG_SETMASK
-	bl	__sigprocmask@local
-	cmpwi	r3,0
-	bne	L(novec_error_exit)
-
-	/* Restore the floating-point registers */
-	lfd	fp31,_UC_FREGS+(32*8)(r31)
-	lfd	fp0,_UC_FREGS+(0*8)(r31)
-	mtfsf	0xff,fp31
-	lfd	fp1,_UC_FREGS+(1*8)(r31)
-	lfd	fp2,_UC_FREGS+(2*8)(r31)
-	lfd	fp3,_UC_FREGS+(3*8)(r31)
-	lfd	fp4,_UC_FREGS+(4*8)(r31)
-	lfd	fp5,_UC_FREGS+(5*8)(r31)
-	lfd	fp6,_UC_FREGS+(6*8)(r31)
-	lfd	fp7,_UC_FREGS+(7*8)(r31)
-	lfd	fp8,_UC_FREGS+(8*8)(r31)
-	lfd	fp9,_UC_FREGS+(9*8)(r31)
-	lfd	fp10,_UC_FREGS+(10*8)(r31)
-	lfd	fp11,_UC_FREGS+(11*8)(r31)
-	lfd	fp12,_UC_FREGS+(12*8)(r31)
-	lfd	fp13,_UC_FREGS+(13*8)(r31)
-	lfd	fp14,_UC_FREGS+(14*8)(r31)
-	lfd	fp15,_UC_FREGS+(15*8)(r31)
-	lfd	fp16,_UC_FREGS+(16*8)(r31)
-	lfd	fp17,_UC_FREGS+(17*8)(r31)
-	lfd	fp18,_UC_FREGS+(18*8)(r31)
-	lfd	fp19,_UC_FREGS+(19*8)(r31)
-	lfd	fp20,_UC_FREGS+(20*8)(r31)
-	lfd	fp21,_UC_FREGS+(21*8)(r31)
-	lfd	fp22,_UC_FREGS+(22*8)(r31)
-	lfd	fp23,_UC_FREGS+(23*8)(r31)
-	lfd	fp24,_UC_FREGS+(24*8)(r31)
-	lfd	fp25,_UC_FREGS+(25*8)(r31)
-	lfd	fp26,_UC_FREGS+(26*8)(r31)
-	lfd	fp27,_UC_FREGS+(27*8)(r31)
-	lfd	fp28,_UC_FREGS+(28*8)(r31)
-	lfd	fp29,_UC_FREGS+(29*8)(r31)
-	lfd	fp30,_UC_FREGS+(30*8)(r31)
-	lfd	fp31,_UC_FREGS+(31*8)(r31)
-
-	/* Restore LR and CCR, and set CTR to the NIP value */
-	lwz	r3,_UC_GREGS+(PT_LNK*4)(r31)
-	lwz	r4,_UC_GREGS+(PT_NIP*4)(r31)
-	lwz	r5,_UC_GREGS+(PT_CCR*4)(r31)
-	mtlr	r3
-	mtctr	r4
-	mtcr	r5
-
-	/* Restore the general registers */
-	lwz	r1,_UC_GREGS+(PT_R1*4)(r31)
-	lwz	r3,_UC_GREGS+(PT_R3*4)(r31)
-	lwz	r4,_UC_GREGS+(PT_R4*4)(r31)
-	lwz	r5,_UC_GREGS+(PT_R5*4)(r31)
-	lwz	r6,_UC_GREGS+(PT_R6*4)(r31)
-	lwz	r7,_UC_GREGS+(PT_R7*4)(r31)
-	lwz	r8,_UC_GREGS+(PT_R8*4)(r31)
-	lwz	r9,_UC_GREGS+(PT_R9*4)(r31)
-	lwz	r10,_UC_GREGS+(PT_R10*4)(r31)
-	lwz	r11,_UC_GREGS+(PT_R11*4)(r31)
-	lwz	r12,_UC_GREGS+(PT_R12*4)(r31)
-	lwz	r13,_UC_GREGS+(PT_R13*4)(r31)
-	lwz	r14,_UC_GREGS+(PT_R14*4)(r31)
-	lwz	r15,_UC_GREGS+(PT_R15*4)(r31)
-	lwz	r16,_UC_GREGS+(PT_R16*4)(r31)
-	lwz	r17,_UC_GREGS+(PT_R17*4)(r31)
-	lwz	r18,_UC_GREGS+(PT_R18*4)(r31)
-	lwz	r19,_UC_GREGS+(PT_R19*4)(r31)
-	lwz	r20,_UC_GREGS+(PT_R20*4)(r31)
-	lwz	r21,_UC_GREGS+(PT_R21*4)(r31)
-	lwz	r22,_UC_GREGS+(PT_R22*4)(r31)
-	lwz	r23,_UC_GREGS+(PT_R23*4)(r31)
-	lwz	r24,_UC_GREGS+(PT_R24*4)(r31)
-	lwz	r25,_UC_GREGS+(PT_R25*4)(r31)
-	lwz	r26,_UC_GREGS+(PT_R26*4)(r31)
-	lwz	r27,_UC_GREGS+(PT_R27*4)(r31)
-	lwz	r28,_UC_GREGS+(PT_R28*4)(r31)
-	lwz	r29,_UC_GREGS+(PT_R29*4)(r31)
-	lwz	r30,_UC_GREGS+(PT_R30*4)(r31)
-	lwz	r31,_UC_GREGS+(PT_R31*4)(r31)
-
-	bctr
-
-L(novec_error_exit):
-	lwz	r31,12(r1)
-	lwz	r0,20(r1)
-	addi	r1,r1,16
-	mtlr	r0
-	blr
-
-L(novec_do_sigret):
-	addi	r1,r3,-0xd0
-	li	r0,SYS_ify(rt_sigreturn)
-	sc
-	/* NOTREACHED */
-
-END (__novec_setcontext)
 	.previous
 
 compat_symbol (libc, __novec_setcontext, setcontext, GLIBC_2_3_3)
@@ -406,8 +70,8 @@ compat_symbol (libc, __novec_setcontext, setcontext, GLIBC_2_3_3)
 
 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_3)
 
-#define _ERRNO_H	1
-#include <bits/errno.h>
+# define _ERRNO_H	1
+# include <bits/errno.h>
 
 	compat_text_section
 ENTRY (__setcontext_stub)
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S
new file mode 100644
index 0000000000..8b2998b8fd
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S
@@ -0,0 +1,516 @@
+/* Save current context and jump to a new context.
+   Copyright (C) 2005 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA
+   02110-1301 USA.  */
+
+/* This is the common implementation of setcontext for powerpc32.
+   It not complete in itself should be included in to a framework that 
+   defines:
+     __CONTEXT_FUNC_NAME
+   and if appropriate:
+     __CONTEXT_ENABLE_FPRS
+     __CONTEXT_ENABLE_VRS
+   Any archecture that implements the Vector unit is assumed to also 
+   implement the floating unit.  */
+
+/* Stack frame offsets.  */
+#define _FRAME_BACKCHAIN	0
+#define _FRAME_LR_SAVE		4
+#define _FRAME_PARM_SAVE1	8
+#define _FRAME_PARM_SAVE2	12
+#define _FRAME_PARM_SAVE3	16
+#define _FRAME_PARM_SAVE4	20
+
+#ifdef __CONTEXT_ENABLE_VRS
+	.machine	"altivec"
+#endif
+ENTRY(__CONTEXT_FUNC_NAME)
+	stwu	r1,-16(r1)
+/* Insure that the _UC_REGS start on a quadword boundary.  */
+	stw	r3,_FRAME_PARM_SAVE1(r1)
+	addi	r3,r3,_UC_REG_SPACE+12
+	stw	r4,_FRAME_PARM_SAVE2(r1)	/* new context pointer */
+	clrrwi  r3,r3,4
+
+/* Save the general purpose registers */
+	stw	r0,_UC_GREGS+(PT_R0*4)(r3)
+	mflr	r0
+	stw	r2,_UC_GREGS+(PT_R2*4)(r3)
+	stw	r4,_UC_GREGS+(PT_R4*4)(r3)			
+/* Set the callers LR_SAVE, and the ucontext LR and NIP to the callers
+   return address.  */
+	stw	r0,_UC_GREGS+(PT_LNK*4)(r3)
+	stw	r0,_UC_GREGS+(PT_NIP*4)(r3)
+	stw	r0,_FRAME_LR_SAVE+16(r1)
+	stw	r5,_UC_GREGS+(PT_R5*4)(r3)
+	stw	r6,_UC_GREGS+(PT_R6*4)(r3)
+	stw	r7,_UC_GREGS+(PT_R7*4)(r3)
+	stw	r8,_UC_GREGS+(PT_R8*4)(r3)
+	stw	r9,_UC_GREGS+(PT_R9*4)(r3)
+	stw	r10,_UC_GREGS+(PT_R10*4)(r3)
+	stw	r11,_UC_GREGS+(PT_R11*4)(r3)
+	stw	r12,_UC_GREGS+(PT_R12*4)(r3)
+	stw	r13,_UC_GREGS+(PT_R13*4)(r3)
+	stw	r14,_UC_GREGS+(PT_R14*4)(r3)
+	stw	r15,_UC_GREGS+(PT_R15*4)(r3)
+	stw	r16,_UC_GREGS+(PT_R16*4)(r3)
+	stw	r17,_UC_GREGS+(PT_R17*4)(r3)
+	stw	r18,_UC_GREGS+(PT_R18*4)(r3)
+	stw	r19,_UC_GREGS+(PT_R19*4)(r3)
+	stw	r20,_UC_GREGS+(PT_R20*4)(r3)
+	stw	r21,_UC_GREGS+(PT_R21*4)(r3)
+	stw	r22,_UC_GREGS+(PT_R22*4)(r3)
+	stw	r23,_UC_GREGS+(PT_R23*4)(r3)
+	stw	r24,_UC_GREGS+(PT_R24*4)(r3)
+	stw	r25,_UC_GREGS+(PT_R25*4)(r3)
+	stw	r26,_UC_GREGS+(PT_R26*4)(r3)
+	stw	r27,_UC_GREGS+(PT_R27*4)(r3)
+	stw	r28,_UC_GREGS+(PT_R28*4)(r3)
+	stw	r29,_UC_GREGS+(PT_R29*4)(r3)
+	stw	r30,_UC_GREGS+(PT_R30*4)(r3)
+	stw	r31,_UC_GREGS+(PT_R31*4)(r3)
+	
+/* Save the value of R1.  We had to push the stack before we
+   had the address of uc_reg_space.  So compute the address of
+   the callers stack pointer and save it as R1.  */
+	addi	r8,r1,16
+	li	r0,0
+/* Save the count, exception and condition registers.  */
+	mfctr	r11
+	mfxer	r10
+	mfcr	r9
+	stw	r8,_UC_GREGS+(PT_R1*4)(r3)
+	stw	r11,_UC_GREGS+(PT_CTR*4)(r3)
+	stw	r10,_UC_GREGS+(PT_XER*4)(r3)
+	stw	r9,_UC_GREGS+(PT_CCR*4)(r3)
+/* Set the return value of getcontext to "success".  R3 is the only
+   register whose value is not preserved in the saved context.  */
+	stw	r0,_UC_GREGS+(PT_R3*4)(r3)
+
+	/* Zero fill fields that can't be set in user state. */
+	stw	r0,_UC_GREGS+(PT_MSR*4)(r3)
+	stw	r0,_UC_GREGS+(PT_MQ*4)(r3)
+
+#ifdef __CONTEXT_ENABLE_FPRS
+	/* Save the floating-point registers */
+	stfd	fp0,_UC_FREGS+(0*8)(r3)
+	stfd	fp1,_UC_FREGS+(1*8)(r3)
+	stfd	fp2,_UC_FREGS+(2*8)(r3)
+	stfd	fp3,_UC_FREGS+(3*8)(r3)
+	stfd	fp4,_UC_FREGS+(4*8)(r3)
+	stfd	fp5,_UC_FREGS+(5*8)(r3)
+	stfd	fp6,_UC_FREGS+(6*8)(r3)
+	stfd	fp7,_UC_FREGS+(7*8)(r3)
+	stfd	fp8,_UC_FREGS+(8*8)(r3)
+	stfd	fp9,_UC_FREGS+(9*8)(r3)
+	stfd	fp10,_UC_FREGS+(10*8)(r3)
+	stfd	fp11,_UC_FREGS+(11*8)(r3)
+	stfd	fp12,_UC_FREGS+(12*8)(r3)
+	stfd	fp13,_UC_FREGS+(13*8)(r3)
+	stfd	fp14,_UC_FREGS+(14*8)(r3)
+	stfd	fp15,_UC_FREGS+(15*8)(r3)
+	stfd	fp16,_UC_FREGS+(16*8)(r3)
+	stfd	fp17,_UC_FREGS+(17*8)(r3)
+	stfd	fp18,_UC_FREGS+(18*8)(r3)
+	stfd	fp19,_UC_FREGS+(19*8)(r3)
+	stfd	fp20,_UC_FREGS+(20*8)(r3)
+	stfd	fp21,_UC_FREGS+(21*8)(r3)
+	stfd	fp22,_UC_FREGS+(22*8)(r3)
+	stfd	fp23,_UC_FREGS+(23*8)(r3)
+	stfd	fp24,_UC_FREGS+(24*8)(r3)
+	stfd	fp25,_UC_FREGS+(25*8)(r3)
+	stfd	fp26,_UC_FREGS+(26*8)(r3)
+	stfd	fp27,_UC_FREGS+(27*8)(r3)
+	stfd	fp28,_UC_FREGS+(28*8)(r3)
+	stfd	fp29,_UC_FREGS+(29*8)(r3)
+	mffs	fp0
+	stfd	fp30,_UC_FREGS+(30*8)(r3)
+	stfd	fp31,_UC_FREGS+(31*8)(r3)
+	stfd	fp0,_UC_FREGS+(32*8)(r3)
+	
+# ifdef __CONTEXT_ENABLE_VRS
+#  ifdef PIC
+	mflr    r8
+#   ifdef HAVE_ASM_PPC_REL16
+	bcl	20,31,1f
+1:	mflr	r7
+	addis	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
+	addi	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
+#   else
+	bl      _GLOBAL_OFFSET_TABLE_@local-4
+	mflr    r7
+#   endif
+#   ifdef SHARED
+	lwz     r7,_rtld_global_ro@got(r7)
+	mtlr    r8
+	lwz     r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
+#   else
+	lwz     r7,_dl_hwcap@got(r7)
+	mtlr    r8
+	lwz     r7,0(r7)
+#   endif
+#  else
+	lis	r7,_dl_hwcap@ha
+	lwz     r7,_dl_hwcap@l(r7)
+#  endif
+	andis.	r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
+
+	la	r10,(_UC_VREGS)(r3)
+	la	r9,(_UC_VREGS+16)(r3)
+	
+/*	beq	L(no_vec)*/
+	beq	2f
+/* address of the combined VSCR/VSAVE quadword.  */	
+	la	r8,(_UC_VREGS+512)(r3)
+
+/* Save the vector registers */
+	stvx  v0,0,r10
+	stvx  v1,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+/* We need to get the Vector Status and Control Register early to avoid
+   store order problems later with the VSAVE register that shares the
+   same quadword.  */
+	mfvscr	v0
+
+	stvx  v2,0,r10
+	stvx  v3,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+	
+	stvx	v0,0,r8
+
+	stvx  v4,0,r10
+	stvx  v5,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v6,0,r10
+	stvx  v7,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v8,0,r10
+	stvx  v9,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v10,0,r10
+	stvx  v11,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v12,0,r10
+	stvx  v13,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v14,0,r10
+	stvx  v15,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v16,0,r10
+	stvx  v17,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v18,0,r10
+	stvx  v19,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v20,0,r10
+	stvx  v21,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v22,0,r10
+	stvx  v23,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v24,0,r10
+	stvx  v25,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v26,0,r10
+	stvx  v27,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	stvx  v28,0,r10
+	stvx  v29,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	mfvscr	v0
+	stvx  v30,0,r10
+	stvx  v31,0,r9
+ 	stw	r0,0(r8)
+	
+2: /*L(no_vec):*/
+# endif /* __CONTEXT_ENABLE_VRS */
+#endif /* __CONTEXT_ENABLE_FPRS */
+
+/* Restore ucontext (parm1) from stack.  */
+	lwz	r12,_FRAME_PARM_SAVE1(r1)
+	li	r4,0
+	stw	r3,_UC_REGS_PTR(r12)
+	addi	r5,r12,_UC_SIGMASK
+	li	r3,SIG_SETMASK
+	bl	__sigprocmask@local
+	cmpwi	r3,0
+	bne	3f	/* L(error_exit) */
+
+	/*
+	 * If the new ucontext refers to the point where we were interrupted
+	 * by a signal, we have to use the rt_sigreturn system call to
+	 * return to the context so we get both LR and CTR restored.
+	 *
+	 * Otherwise, the context we are restoring is either just after
+	 * a procedure call (getcontext/swapcontext) or at the beginning
+	 * of a procedure call (makecontext), so we don't need to restore
+	 * r0, xer, ctr.  We don't restore r2 since it will be used as
+	 * the TLS pointer.
+	 */
+	lwz	r4,_FRAME_PARM_SAVE2(r1)
+	lwz	r31,_UC_REGS_PTR(r4)
+	lwz	r0,_UC_GREGS+(PT_MSR*4)(r31)
+	cmpwi	r0,0
+	bne	4f	/* L(do_sigret) */
+
+#ifdef __CONTEXT_ENABLE_FPRS
+# ifdef __CONTEXT_ENABLE_VRS
+
+#  ifdef PIC
+	mflr    r8
+#   ifdef HAVE_ASM_PPC_REL16
+	bcl	20,31,5f
+5:	mflr	r7
+	addis	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
+	addi	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
+#   else
+	bl      _GLOBAL_OFFSET_TABLE_@local-4
+	mflr    r7
+#   endif
+#   ifdef SHARED
+	lwz     r7,_rtld_global_ro@got(r7)
+	mtlr    r8
+	lwz     r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
+#   else
+	lwz     r7,_dl_hwcap@got(r7)
+	mtlr    r8
+	lwz     r7,0(r7)
+#   endif
+#  else
+	lis	r7,_dl_hwcap@ha
+	lwz     r7,_dl_hwcap@l(r7)
+#  endif
+	andis.	r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
+	la	r10,(_UC_VREGS)(r31)
+	beq	6f	/* L(has_no_vec) */
+
+	lwz   r0,(32*16)(r10)
+	li    r9,(32*16)
+	cmpwi r0,0
+	mtspr VRSAVE,r0
+	beq	6f	/* L(has_no_vec) */
+
+	lvx   v19,r9,r10
+	la    r9,(16)(r10)
+
+	lvx   v0,0,r10
+	lvx   v1,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	mtvscr  v19
+	lvx   v2,0,r10
+	lvx   v3,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v4,0,r10
+	lvx   v5,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v6,0,r10
+	lvx   v7,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v8,0,r10
+	lvx   v9,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v10,0,r10
+	lvx   v11,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v12,0,r10
+	lvx   v13,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v14,0,r10
+	lvx   v15,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v16,0,r10
+	lvx   v17,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v18,0,r10
+	lvx   v19,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v20,0,r10
+	lvx   v21,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v22,0,r10
+	lvx   v23,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v24,0,r10
+	lvx   v25,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v26,0,r10
+	lvx   v27,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v28,0,r10
+	lvx   v29,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v30,0,r10
+	lvx   v31,0,r9
+	addi  r10,r10,32
+	addi  r9,r9,32
+
+	lvx   v10,0,r10
+	lvx   v11,0,r9
+
+6: /* L(has_no_vec): */
+# endif /* __CONTEXT_ENABLE_VRS */
+	/* Restore the floating-point registers */
+	lfd	fp31,_UC_FREGS+(32*8)(r31)
+	lfd	fp0,_UC_FREGS+(0*8)(r31)
+	mtfsf	0xff,fp31
+	lfd	fp1,_UC_FREGS+(1*8)(r31)
+	lfd	fp2,_UC_FREGS+(2*8)(r31)
+	lfd	fp3,_UC_FREGS+(3*8)(r31)
+	lfd	fp4,_UC_FREGS+(4*8)(r31)
+	lfd	fp5,_UC_FREGS+(5*8)(r31)
+	lfd	fp6,_UC_FREGS+(6*8)(r31)
+	lfd	fp7,_UC_FREGS+(7*8)(r31)
+	lfd	fp8,_UC_FREGS+(8*8)(r31)
+	lfd	fp9,_UC_FREGS+(9*8)(r31)
+	lfd	fp10,_UC_FREGS+(10*8)(r31)
+	lfd	fp11,_UC_FREGS+(11*8)(r31)
+	lfd	fp12,_UC_FREGS+(12*8)(r31)
+	lfd	fp13,_UC_FREGS+(13*8)(r31)
+	lfd	fp14,_UC_FREGS+(14*8)(r31)
+	lfd	fp15,_UC_FREGS+(15*8)(r31)
+	lfd	fp16,_UC_FREGS+(16*8)(r31)
+	lfd	fp17,_UC_FREGS+(17*8)(r31)
+	lfd	fp18,_UC_FREGS+(18*8)(r31)
+	lfd	fp19,_UC_FREGS+(19*8)(r31)
+	lfd	fp20,_UC_FREGS+(20*8)(r31)
+	lfd	fp21,_UC_FREGS+(21*8)(r31)
+	lfd	fp22,_UC_FREGS+(22*8)(r31)
+	lfd	fp23,_UC_FREGS+(23*8)(r31)
+	lfd	fp24,_UC_FREGS+(24*8)(r31)
+	lfd	fp25,_UC_FREGS+(25*8)(r31)
+	lfd	fp26,_UC_FREGS+(26*8)(r31)
+	lfd	fp27,_UC_FREGS+(27*8)(r31)
+	lfd	fp28,_UC_FREGS+(28*8)(r31)
+	lfd	fp29,_UC_FREGS+(29*8)(r31)
+	lfd	fp30,_UC_FREGS+(30*8)(r31)
+	lfd	fp31,_UC_FREGS+(31*8)(r31)
+#endif /* __CONTEXT_ENABLE_FPRS */
+
+	/* Restore LR and CCR, and set CTR to the NIP value */
+	lwz	r3,_UC_GREGS+(PT_LNK*4)(r31)
+	lwz	r4,_UC_GREGS+(PT_NIP*4)(r31)
+	lwz	r5,_UC_GREGS+(PT_CCR*4)(r31)
+	mtlr	r3
+	mtctr	r4
+	mtcr	r5
+
+	/* Restore the general registers */
+	lwz	r1,_UC_GREGS+(PT_R1*4)(r31)
+	lwz	r3,_UC_GREGS+(PT_R3*4)(r31)
+	lwz	r4,_UC_GREGS+(PT_R4*4)(r31)
+	lwz	r5,_UC_GREGS+(PT_R5*4)(r31)
+	lwz	r6,_UC_GREGS+(PT_R6*4)(r31)
+	lwz	r7,_UC_GREGS+(PT_R7*4)(r31)
+	lwz	r8,_UC_GREGS+(PT_R8*4)(r31)
+	lwz	r9,_UC_GREGS+(PT_R9*4)(r31)
+	lwz	r10,_UC_GREGS+(PT_R10*4)(r31)
+	lwz	r11,_UC_GREGS+(PT_R11*4)(r31)
+	lwz	r12,_UC_GREGS+(PT_R12*4)(r31)
+	lwz	r13,_UC_GREGS+(PT_R13*4)(r31)
+	lwz	r14,_UC_GREGS+(PT_R14*4)(r31)
+	lwz	r15,_UC_GREGS+(PT_R15*4)(r31)
+	lwz	r16,_UC_GREGS+(PT_R16*4)(r31)
+	lwz	r17,_UC_GREGS+(PT_R17*4)(r31)
+	lwz	r18,_UC_GREGS+(PT_R18*4)(r31)
+	lwz	r19,_UC_GREGS+(PT_R19*4)(r31)
+	lwz	r20,_UC_GREGS+(PT_R20*4)(r31)
+	lwz	r21,_UC_GREGS+(PT_R21*4)(r31)
+	lwz	r22,_UC_GREGS+(PT_R22*4)(r31)
+	lwz	r23,_UC_GREGS+(PT_R23*4)(r31)
+	lwz	r24,_UC_GREGS+(PT_R24*4)(r31)
+	lwz	r25,_UC_GREGS+(PT_R25*4)(r31)
+	lwz	r26,_UC_GREGS+(PT_R26*4)(r31)
+	lwz	r27,_UC_GREGS+(PT_R27*4)(r31)
+	lwz	r28,_UC_GREGS+(PT_R28*4)(r31)
+	lwz	r29,_UC_GREGS+(PT_R29*4)(r31)
+	lwz	r30,_UC_GREGS+(PT_R30*4)(r31)
+	lwz	r31,_UC_GREGS+(PT_R31*4)(r31)
+
+	bctr
+	
+3:/*L(error_exit):*/
+	lwz	r0,_FRAME_LR_SAVE+16(r1)
+	addi	r1,r1,16
+	mtlr	r0
+	blr
+	
+4:/*L(do_sigret):*/
+	addi	r1,r4,-0xd0
+	li	r0,SYS_ify(rt_sigreturn)
+	sc
+	/* NOTREACHED */
+
+END(__CONTEXT_FUNC_NAME)
+
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
index 6e46abadb0..0605f3d107 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
@@ -1,5 +1,5 @@
 /* Save current context and jump to a new context.
-   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -14,698 +14,53 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA
+   02110-1301 USA.  */
 
 #include <sysdep.h>
 #include <rtld-global-offsets.h>
 #include <shlib-compat.h>
+#include <kernel-features.h>
 
 #define __ASSEMBLY__
 #include <asm/ptrace.h>
 #include "ucontext_i.h"
 
-	.machine	"altivec"
-ENTRY(__swapcontext)
-	stwu	r1,-16(r1)
-/* Insure that the _UC_REGS start on a quadword boundary.  */
-	stw	r3,_FRAME_PARM_SAVE1(r1)
-	addi	r3,r3,_UC_REG_SPACE+12
-	stw	r4,_FRAME_PARM_SAVE2(r1)	/* new context pointer */
-	clrrwi  r3,r3,4
+#define __CONTEXT_FUNC_NAME __swapcontext
+#define __CONTEXT_ENABLE_FPRS 1
+#define __CONTEXT_ENABLE_VRS 1
 
-/* Save the general purpose registers */
-	stw	r0,_UC_GREGS+(PT_R0*4)(r3)
-	mflr	r0
-	stw	r2,_UC_GREGS+(PT_R2*4)(r3)
-	stw	r4,_UC_GREGS+(PT_R4*4)(r3)			
-/* Set the callers LR_SAVE, and the ucontext LR and NIP to the callers
-   return address.  */
-	stw	r0,_UC_GREGS+(PT_LNK*4)(r3)
-	stw	r0,_UC_GREGS+(PT_NIP*4)(r3)
-	stw	r0,_FRAME_LR_SAVE+16(r1)
-	stw	r5,_UC_GREGS+(PT_R5*4)(r3)
-	stw	r6,_UC_GREGS+(PT_R6*4)(r3)
-	stw	r7,_UC_GREGS+(PT_R7*4)(r3)
-	stw	r8,_UC_GREGS+(PT_R8*4)(r3)
-	stw	r9,_UC_GREGS+(PT_R9*4)(r3)
-	stw	r10,_UC_GREGS+(PT_R10*4)(r3)
-	stw	r11,_UC_GREGS+(PT_R11*4)(r3)
-	stw	r12,_UC_GREGS+(PT_R12*4)(r3)
-	stw	r13,_UC_GREGS+(PT_R13*4)(r3)
-	stw	r14,_UC_GREGS+(PT_R14*4)(r3)
-	stw	r15,_UC_GREGS+(PT_R15*4)(r3)
-	stw	r16,_UC_GREGS+(PT_R16*4)(r3)
-	stw	r17,_UC_GREGS+(PT_R17*4)(r3)
-	stw	r18,_UC_GREGS+(PT_R18*4)(r3)
-	stw	r19,_UC_GREGS+(PT_R19*4)(r3)
-	stw	r20,_UC_GREGS+(PT_R20*4)(r3)
-	stw	r21,_UC_GREGS+(PT_R21*4)(r3)
-	stw	r22,_UC_GREGS+(PT_R22*4)(r3)
-	stw	r23,_UC_GREGS+(PT_R23*4)(r3)
-	stw	r24,_UC_GREGS+(PT_R24*4)(r3)
-	stw	r25,_UC_GREGS+(PT_R25*4)(r3)
-	stw	r26,_UC_GREGS+(PT_R26*4)(r3)
-	stw	r27,_UC_GREGS+(PT_R27*4)(r3)
-	stw	r28,_UC_GREGS+(PT_R28*4)(r3)
-	stw	r29,_UC_GREGS+(PT_R29*4)(r3)
-	stw	r30,_UC_GREGS+(PT_R30*4)(r3)
-	stw	r31,_UC_GREGS+(PT_R31*4)(r3)
-	
-/* Save the value of R1.  We had to push the stack before we
-   had the address of uc_reg_space.  So compute the address of
-   the callers stack pointer and save it as R1.  */
-	addi	r8,r1,16
-	li	r0,0
-/* Save the count, exception and condition registers.  */
-	mfctr	r11
-	mfxer	r10
-	mfcr	r9
-	stw	r8,_UC_GREGS+(PT_R1*4)(r3)
-	stw	r11,_UC_GREGS+(PT_CTR*4)(r3)
-	stw	r10,_UC_GREGS+(PT_XER*4)(r3)
-	stw	r9,_UC_GREGS+(PT_CCR*4)(r3)
-/* Set the return value of getcontext to "success".  R3 is the only
-   register whose value is not preserved in the saved context.  */
-	stw	r0,_UC_GREGS+(PT_R3*4)(r3)
+/* Size of ucontext in GLIBC_2.3.4 and later.  */
+#define _UC_SIZE_2_3_4	1184
 
-	/* Zero fill fields that can't be set in user state. */
-	stw	r0,_UC_GREGS+(PT_MSR*4)(r3)
-	stw	r0,_UC_GREGS+(PT_MQ*4)(r3)
-
-	/* Save the floating-point registers */
-	stfd	fp0,_UC_FREGS+(0*8)(r3)
-	stfd	fp1,_UC_FREGS+(1*8)(r3)
-	stfd	fp2,_UC_FREGS+(2*8)(r3)
-	stfd	fp3,_UC_FREGS+(3*8)(r3)
-	stfd	fp4,_UC_FREGS+(4*8)(r3)
-	stfd	fp5,_UC_FREGS+(5*8)(r3)
-	stfd	fp6,_UC_FREGS+(6*8)(r3)
-	stfd	fp7,_UC_FREGS+(7*8)(r3)
-	stfd	fp8,_UC_FREGS+(8*8)(r3)
-	stfd	fp9,_UC_FREGS+(9*8)(r3)
-	stfd	fp10,_UC_FREGS+(10*8)(r3)
-	stfd	fp11,_UC_FREGS+(11*8)(r3)
-	stfd	fp12,_UC_FREGS+(12*8)(r3)
-	stfd	fp13,_UC_FREGS+(13*8)(r3)
-	stfd	fp14,_UC_FREGS+(14*8)(r3)
-	stfd	fp15,_UC_FREGS+(15*8)(r3)
-	stfd	fp16,_UC_FREGS+(16*8)(r3)
-	stfd	fp17,_UC_FREGS+(17*8)(r3)
-	stfd	fp18,_UC_FREGS+(18*8)(r3)
-	stfd	fp19,_UC_FREGS+(19*8)(r3)
-	stfd	fp20,_UC_FREGS+(20*8)(r3)
-	stfd	fp21,_UC_FREGS+(21*8)(r3)
-	stfd	fp22,_UC_FREGS+(22*8)(r3)
-	stfd	fp23,_UC_FREGS+(23*8)(r3)
-	stfd	fp24,_UC_FREGS+(24*8)(r3)
-	stfd	fp25,_UC_FREGS+(25*8)(r3)
-	stfd	fp26,_UC_FREGS+(26*8)(r3)
-	stfd	fp27,_UC_FREGS+(27*8)(r3)
-	stfd	fp28,_UC_FREGS+(28*8)(r3)
-	stfd	fp29,_UC_FREGS+(29*8)(r3)
-	mffs	fp0
-	stfd	fp30,_UC_FREGS+(30*8)(r3)
-	stfd	fp31,_UC_FREGS+(31*8)(r3)
-	stfd	fp0,_UC_FREGS+(32*8)(r3)
-#ifdef PIC
-	mflr    r8
-# ifdef HAVE_ASM_PPC_REL16
-	bcl	20,31,1f
-1:	mflr	r7
-	addis	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
-	addi	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
-# else
-	bl      _GLOBAL_OFFSET_TABLE_@local-4
-	mflr    r7
-# endif
-# ifdef SHARED
-	lwz     r7,_rtld_global_ro@got(r7)
-	mtlr    r8
-	lwz     r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
-# else
-	lwz     r7,_dl_hwcap@got(r7)
-	mtlr    r8
-	lwz     r7,0(r7)
-# endif
-#else
-	lis	r7,_dl_hwcap@ha
-	lwz     r7,_dl_hwcap@l(r7)
-#endif
-	andis.	r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
-
-	la	r10,(_UC_VREGS)(r3)
-	la	r9,(_UC_VREGS+16)(r3)
-	
-	beq	L(no_vec)
-/* address of the combined VSCR/VSAVE quadword.  */	
-	la	r8,(_UC_VREGS+512)(r3)
-
-/* Save the vector registers */
-	stvx  v0,0,r10
-	stvx  v1,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-/* We need to get the Vector Status and Control Register early to avoid
-   store order problems later with the VSAVE register that shares the
-   same quadword.  */
-	mfvscr	v0
-
-	stvx  v2,0,r10
-	stvx  v3,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-	
-	stvx	v0,0,r8
-
-	stvx  v4,0,r10
-	stvx  v5,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v6,0,r10
-	stvx  v7,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v8,0,r10
-	stvx  v9,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v10,0,r10
-	stvx  v11,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v12,0,r10
-	stvx  v13,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v14,0,r10
-	stvx  v15,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v16,0,r10
-	stvx  v17,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v18,0,r10
-	stvx  v19,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v20,0,r10
-	stvx  v21,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v22,0,r10
-	stvx  v23,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v24,0,r10
-	stvx  v25,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v26,0,r10
-	stvx  v27,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	stvx  v28,0,r10
-	stvx  v29,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	mfvscr	v0
-	stvx  v30,0,r10
-	stvx  v31,0,r9
-
- 	stw	r0,0(r8)
-
-L(no_vec):
-/* Restore ucontext (parm1) from stack.  */
-	lwz	r12,_FRAME_PARM_SAVE1(r1)
-	li	r4,0
-	stw	r3,_UC_REGS_PTR(r12)
-	addi	r5,r12,_UC_SIGMASK
-	li	r3,SIG_SETMASK
-	bl	__sigprocmask@local
-	cmpwi	r3,0
-	bne	L(error_exit)
-
-	/*
-	 * If the new ucontext refers to the point where we were interrupted
-	 * by a signal, we have to use the rt_sigreturn system call to
-	 * return to the context so we get both LR and CTR restored.
-	 *
-	 * Otherwise, the context we are restoring is either just after
-	 * a procedure call (getcontext/swapcontext) or at the beginning
-	 * of a procedure call (makecontext), so we don't need to restore
-	 * r0, xer, ctr.  We don't restore r2 since it will be used as
-	 * the TLS pointer.
-	 */
-	lwz	r4,_FRAME_PARM_SAVE2(r1)
-	lwz	r31,_UC_REGS_PTR(r4)
-	lwz	r0,_UC_GREGS+(PT_MSR*4)(r31)
-	cmpwi	r0,0
-	bne	L(do_sigret)
-
-#ifdef PIC
-	mflr    r8
-# ifdef HAVE_ASM_PPC_REL16
-	bcl	20,31,1f
-1:	mflr	r7
-	addis	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@ha
-	addi	r7,r7,_GLOBAL_OFFSET_TABLE_-1b@l
-# else
-	bl      _GLOBAL_OFFSET_TABLE_@local-4
-	mflr    r7
-# endif
-# ifdef SHARED
-	lwz     r7,_rtld_global_ro@got(r7)
-	mtlr    r8
-	lwz     r7,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r7)
-# else
-	lwz     r7,_dl_hwcap@got(r7)
-	mtlr    r8
-	lwz     r7,0(r7)
-# endif
-#else
-	lis	r7,_dl_hwcap@ha
-	lwz     r7,_dl_hwcap@l(r7)
-#endif
-	andis.	r7,r7,(PPC_FEATURE_HAS_ALTIVEC >> 16)
-	la	r10,(_UC_VREGS)(r31)
-	beq	L(has_no_vec)
-
-	lwz   r0,(32*16)(r10)
-	li    r9,(32*16)
-	cmpwi r0,0
-	mtspr VRSAVE,r0
-	beq   L(has_no_vec)
-
-	lvx   v19,r9,r10
-	la    r9,(16)(r10)
-
-	lvx   v0,0,r10
-	lvx   v1,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	mtvscr  v19
-	lvx   v2,0,r10
-	lvx   v3,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v4,0,r10
-	lvx   v5,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v6,0,r10
-	lvx   v7,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v8,0,r10
-	lvx   v9,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v10,0,r10
-	lvx   v11,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v12,0,r10
-	lvx   v13,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v14,0,r10
-	lvx   v15,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v16,0,r10
-	lvx   v17,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v18,0,r10
-	lvx   v19,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v20,0,r10
-	lvx   v21,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v22,0,r10
-	lvx   v23,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v24,0,r10
-	lvx   v25,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v26,0,r10
-	lvx   v27,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v28,0,r10
-	lvx   v29,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v30,0,r10
-	lvx   v31,0,r9
-	addi  r10,r10,32
-	addi  r9,r9,32
-
-	lvx   v10,0,r10
-	lvx   v11,0,r9
-
-L(has_no_vec):
-	/* Restore the floating-point registers */
-	lfd	fp31,_UC_FREGS+(32*8)(r31)
-	lfd	fp0,_UC_FREGS+(0*8)(r31)
-	mtfsf	0xff,fp31
-	lfd	fp1,_UC_FREGS+(1*8)(r31)
-	lfd	fp2,_UC_FREGS+(2*8)(r31)
-	lfd	fp3,_UC_FREGS+(3*8)(r31)
-	lfd	fp4,_UC_FREGS+(4*8)(r31)
-	lfd	fp5,_UC_FREGS+(5*8)(r31)
-	lfd	fp6,_UC_FREGS+(6*8)(r31)
-	lfd	fp7,_UC_FREGS+(7*8)(r31)
-	lfd	fp8,_UC_FREGS+(8*8)(r31)
-	lfd	fp9,_UC_FREGS+(9*8)(r31)
-	lfd	fp10,_UC_FREGS+(10*8)(r31)
-	lfd	fp11,_UC_FREGS+(11*8)(r31)
-	lfd	fp12,_UC_FREGS+(12*8)(r31)
-	lfd	fp13,_UC_FREGS+(13*8)(r31)
-	lfd	fp14,_UC_FREGS+(14*8)(r31)
-	lfd	fp15,_UC_FREGS+(15*8)(r31)
-	lfd	fp16,_UC_FREGS+(16*8)(r31)
-	lfd	fp17,_UC_FREGS+(17*8)(r31)
-	lfd	fp18,_UC_FREGS+(18*8)(r31)
-	lfd	fp19,_UC_FREGS+(19*8)(r31)
-	lfd	fp20,_UC_FREGS+(20*8)(r31)
-	lfd	fp21,_UC_FREGS+(21*8)(r31)
-	lfd	fp22,_UC_FREGS+(22*8)(r31)
-	lfd	fp23,_UC_FREGS+(23*8)(r31)
-	lfd	fp24,_UC_FREGS+(24*8)(r31)
-	lfd	fp25,_UC_FREGS+(25*8)(r31)
-	lfd	fp26,_UC_FREGS+(26*8)(r31)
-	lfd	fp27,_UC_FREGS+(27*8)(r31)
-	lfd	fp28,_UC_FREGS+(28*8)(r31)
-	lfd	fp29,_UC_FREGS+(29*8)(r31)
-	lfd	fp30,_UC_FREGS+(30*8)(r31)
-	lfd	fp31,_UC_FREGS+(31*8)(r31)
-
-	/* Restore LR and CCR, and set CTR to the NIP value */
-	lwz	r3,_UC_GREGS+(PT_LNK*4)(r31)
-	lwz	r4,_UC_GREGS+(PT_NIP*4)(r31)
-	lwz	r5,_UC_GREGS+(PT_CCR*4)(r31)
-	mtlr	r3
-	mtctr	r4
-	mtcr	r5
-
-	/* Restore the general registers */
-	lwz	r1,_UC_GREGS+(PT_R1*4)(r31)
-	lwz	r3,_UC_GREGS+(PT_R3*4)(r31)
-	lwz	r4,_UC_GREGS+(PT_R4*4)(r31)
-	lwz	r5,_UC_GREGS+(PT_R5*4)(r31)
-	lwz	r6,_UC_GREGS+(PT_R6*4)(r31)
-	lwz	r7,_UC_GREGS+(PT_R7*4)(r31)
-	lwz	r8,_UC_GREGS+(PT_R8*4)(r31)
-	lwz	r9,_UC_GREGS+(PT_R9*4)(r31)
-	lwz	r10,_UC_GREGS+(PT_R10*4)(r31)
-	lwz	r11,_UC_GREGS+(PT_R11*4)(r31)
-	lwz	r12,_UC_GREGS+(PT_R12*4)(r31)
-	lwz	r13,_UC_GREGS+(PT_R13*4)(r31)
-	lwz	r14,_UC_GREGS+(PT_R14*4)(r31)
-	lwz	r15,_UC_GREGS+(PT_R15*4)(r31)
-	lwz	r16,_UC_GREGS+(PT_R16*4)(r31)
-	lwz	r17,_UC_GREGS+(PT_R17*4)(r31)
-	lwz	r18,_UC_GREGS+(PT_R18*4)(r31)
-	lwz	r19,_UC_GREGS+(PT_R19*4)(r31)
-	lwz	r20,_UC_GREGS+(PT_R20*4)(r31)
-	lwz	r21,_UC_GREGS+(PT_R21*4)(r31)
-	lwz	r22,_UC_GREGS+(PT_R22*4)(r31)
-	lwz	r23,_UC_GREGS+(PT_R23*4)(r31)
-	lwz	r24,_UC_GREGS+(PT_R24*4)(r31)
-	lwz	r25,_UC_GREGS+(PT_R25*4)(r31)
-	lwz	r26,_UC_GREGS+(PT_R26*4)(r31)
-	lwz	r27,_UC_GREGS+(PT_R27*4)(r31)
-	lwz	r28,_UC_GREGS+(PT_R28*4)(r31)
-	lwz	r29,_UC_GREGS+(PT_R29*4)(r31)
-	lwz	r30,_UC_GREGS+(PT_R30*4)(r31)
-	lwz	r31,_UC_GREGS+(PT_R31*4)(r31)
-
-	bctr
-
-L(error_exit):
-	lwz	r0,_FRAME_LR_SAVE+16(r1)
-	addi	r1,r1,16
-	mtlr	r0
+#ifdef __ASSUME_SWAPCONTEXT_SYSCALL
+	.section ".text";
+ENTRY (__swapcontext)
+	li	r5,_UC_SIZE_2_3_4;
+	DO_CALL (SYS_ify (swapcontext));
+	bso-	cr0,1f
+/* the kernel does not set the return code for the success case */
+	li	r3,0
 	blr
-
-L(do_sigret):
-	addi	r1,r4,-0xd0
-	li	r0,SYS_ify(rt_sigreturn)
-	sc
-	/* NOTREACHED */
-
+1:
+	b	__syscall_error@local
 END(__swapcontext)
+#else
+# include "swapcontext-common.S"
+#endif
 
 versioned_symbol (libc, __swapcontext, swapcontext, GLIBC_2_3_4)
 
 #if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
 
 	compat_text_section
-ENTRY(__novec_swapcontext)
-	/* Save the current context */
-	addi	r3,r3,_UC_REG_SPACE
-	stw	r3,_UC_REGS_PTR - _UC_REG_SPACE(r3)
-	stw	r0,_UC_GREGS+(PT_R0*4)(r3)
-	stw	r1,_UC_GREGS+(PT_R1*4)(r3)
-	mflr	r0
-	stwu	r1,-16(r1)
-	stw	r0,20(r1)
-	stw	r31,12(r1)
-	stw	r31,_UC_GREGS+(PT_R31*4)(r3)
-	mr	r31,r4			/* new context pointer */
-	stw	r0,_UC_GREGS+(PT_LNK*4)(r3)
-	stw	r0,_UC_GREGS+(PT_NIP*4)(r3)
-	stw	r2,_UC_GREGS+(PT_R2*4)(r3)
-	stw	r4,_UC_GREGS+(PT_R4*4)(r3)
-	stw	r5,_UC_GREGS+(PT_R5*4)(r3)
-	stw	r6,_UC_GREGS+(PT_R6*4)(r3)
-	stw	r7,_UC_GREGS+(PT_R7*4)(r3)
-	stw	r8,_UC_GREGS+(PT_R8*4)(r3)
-	stw	r9,_UC_GREGS+(PT_R9*4)(r3)
-	stw	r10,_UC_GREGS+(PT_R10*4)(r3)
-	stw	r11,_UC_GREGS+(PT_R11*4)(r3)
-	stw	r12,_UC_GREGS+(PT_R12*4)(r3)
-	stw	r13,_UC_GREGS+(PT_R13*4)(r3)
-	stw	r14,_UC_GREGS+(PT_R14*4)(r3)
-	stw	r15,_UC_GREGS+(PT_R15*4)(r3)
-	stw	r16,_UC_GREGS+(PT_R16*4)(r3)
-	stw	r17,_UC_GREGS+(PT_R17*4)(r3)
-	stw	r18,_UC_GREGS+(PT_R18*4)(r3)
-	stw	r19,_UC_GREGS+(PT_R19*4)(r3)
-	stw	r20,_UC_GREGS+(PT_R20*4)(r3)
-	stw	r21,_UC_GREGS+(PT_R21*4)(r3)
-	stw	r22,_UC_GREGS+(PT_R22*4)(r3)
-	stw	r23,_UC_GREGS+(PT_R23*4)(r3)
-	stw	r24,_UC_GREGS+(PT_R24*4)(r3)
-	stw	r25,_UC_GREGS+(PT_R25*4)(r3)
-	stw	r26,_UC_GREGS+(PT_R26*4)(r3)
-	stw	r27,_UC_GREGS+(PT_R27*4)(r3)
-	stw	r28,_UC_GREGS+(PT_R28*4)(r3)
-	stw	r29,_UC_GREGS+(PT_R29*4)(r3)
-	stw	r30,_UC_GREGS+(PT_R30*4)(r3)
-	mfctr	r0
-	stw	r0,_UC_GREGS+(PT_CTR*4)(r3)
-	mfxer	r0
-	stw	r0,_UC_GREGS+(PT_XER*4)(r3)
-	mfcr	r0
-	stw	r0,_UC_GREGS+(PT_CCR*4)(r3)
+	
+# undef __CONTEXT_FUNC_NAME	
+# define __CONTEXT_FUNC_NAME __novec_swapcontext
+# undef __CONTEXT_ENABLE_VRS
 
-	/* Set the return value of swapcontext to "success".  R3 is the only
-	   register whose value is not preserved in the saved context.  */
-	li	r0,0
-	stw	r0,_UC_GREGS+(PT_R3*4)(r3)
+# include "swapcontext-common.S"
 
-	/* Zero fill fields that can't be set in user state. */
-	stw	r0,_UC_GREGS+(PT_MSR*4)(r3)
-	stw	r0,_UC_GREGS+(PT_MQ*4)(r3)
-
-	/* Save the floating-point registers */
-	stfd	fp0,_UC_FREGS+(0*8)(r3)
-	stfd	fp1,_UC_FREGS+(1*8)(r3)
-	stfd	fp2,_UC_FREGS+(2*8)(r3)
-	stfd	fp3,_UC_FREGS+(3*8)(r3)
-	stfd	fp4,_UC_FREGS+(4*8)(r3)
-	stfd	fp5,_UC_FREGS+(5*8)(r3)
-	stfd	fp6,_UC_FREGS+(6*8)(r3)
-	stfd	fp7,_UC_FREGS+(7*8)(r3)
-	stfd	fp8,_UC_FREGS+(8*8)(r3)
-	stfd	fp9,_UC_FREGS+(9*8)(r3)
-	stfd	fp10,_UC_FREGS+(10*8)(r3)
-	stfd	fp11,_UC_FREGS+(11*8)(r3)
-	stfd	fp12,_UC_FREGS+(12*8)(r3)
-	stfd	fp13,_UC_FREGS+(13*8)(r3)
-	stfd	fp14,_UC_FREGS+(14*8)(r3)
-	stfd	fp15,_UC_FREGS+(15*8)(r3)
-	stfd	fp16,_UC_FREGS+(16*8)(r3)
-	stfd	fp17,_UC_FREGS+(17*8)(r3)
-	stfd	fp18,_UC_FREGS+(18*8)(r3)
-	stfd	fp19,_UC_FREGS+(19*8)(r3)
-	stfd	fp20,_UC_FREGS+(20*8)(r3)
-	stfd	fp21,_UC_FREGS+(21*8)(r3)
-	stfd	fp22,_UC_FREGS+(22*8)(r3)
-	stfd	fp23,_UC_FREGS+(23*8)(r3)
-	stfd	fp24,_UC_FREGS+(24*8)(r3)
-	stfd	fp25,_UC_FREGS+(25*8)(r3)
-	stfd	fp26,_UC_FREGS+(26*8)(r3)
-	stfd	fp27,_UC_FREGS+(27*8)(r3)
-	stfd	fp28,_UC_FREGS+(28*8)(r3)
-	stfd	fp29,_UC_FREGS+(29*8)(r3)
-	mffs	fp0
-	stfd	fp30,_UC_FREGS+(30*8)(r3)
-	stfd	fp31,_UC_FREGS+(31*8)(r3)
-	stfd	fp0,_UC_FREGS+(32*8)(r3)
-
-	addi	r5,r3,_UC_SIGMASK - _UC_REG_SPACE
-	addi	r4,r4,_UC_SIGMASK
-	li	r3,SIG_SETMASK
-	bl	__sigprocmask@local
-	cmpwi	r3,0
-	bne	L(novec_error_exit)
-
-	/*
-	 * If the new ucontext refers to the point where we were interrupted
-	 * by a signal, we have to use the rt_sigreturn system call to
-	 * return to the context so we get both LR and CTR restored.
-	 *
-	 * Otherwise, the context we are restoring is either just after
-	 * a procedure call (getcontext/swapcontext) or at the beginning
-	 * of a procedure call (makecontext), so we don't need to restore
-	 * r0, xer, ctr.  We don't restore r2 since it will be used as
-	 * the TLS pointer.
-	 */
-	mr	r4,r31
-	lwz	r31,_UC_REGS_PTR(r31)
-	lwz	r0,_UC_GREGS+(PT_MSR*4)(r31)
-	cmpwi	r0,0
-	bne	L(novec_do_sigret)
-
-	/* Restore the floating-point registers */
-	lfd	fp31,_UC_FREGS+(32*8)(r31)
-	lfd	fp0,_UC_FREGS+(0*8)(r31)
-	mtfsf	0xff,fp31
-	lfd	fp1,_UC_FREGS+(1*8)(r31)
-	lfd	fp2,_UC_FREGS+(2*8)(r31)
-	lfd	fp3,_UC_FREGS+(3*8)(r31)
-	lfd	fp4,_UC_FREGS+(4*8)(r31)
-	lfd	fp5,_UC_FREGS+(5*8)(r31)
-	lfd	fp6,_UC_FREGS+(6*8)(r31)
-	lfd	fp7,_UC_FREGS+(7*8)(r31)
-	lfd	fp8,_UC_FREGS+(8*8)(r31)
-	lfd	fp9,_UC_FREGS+(9*8)(r31)
-	lfd	fp10,_UC_FREGS+(10*8)(r31)
-	lfd	fp11,_UC_FREGS+(11*8)(r31)
-	lfd	fp12,_UC_FREGS+(12*8)(r31)
-	lfd	fp13,_UC_FREGS+(13*8)(r31)
-	lfd	fp14,_UC_FREGS+(14*8)(r31)
-	lfd	fp15,_UC_FREGS+(15*8)(r31)
-	lfd	fp16,_UC_FREGS+(16*8)(r31)
-	lfd	fp17,_UC_FREGS+(17*8)(r31)
-	lfd	fp18,_UC_FREGS+(18*8)(r31)
-	lfd	fp19,_UC_FREGS+(19*8)(r31)
-	lfd	fp20,_UC_FREGS+(20*8)(r31)
-	lfd	fp21,_UC_FREGS+(21*8)(r31)
-	lfd	fp22,_UC_FREGS+(22*8)(r31)
-	lfd	fp23,_UC_FREGS+(23*8)(r31)
-	lfd	fp24,_UC_FREGS+(24*8)(r31)
-	lfd	fp25,_UC_FREGS+(25*8)(r31)
-	lfd	fp26,_UC_FREGS+(26*8)(r31)
-	lfd	fp27,_UC_FREGS+(27*8)(r31)
-	lfd	fp28,_UC_FREGS+(28*8)(r31)
-	lfd	fp29,_UC_FREGS+(29*8)(r31)
-	lfd	fp30,_UC_FREGS+(30*8)(r31)
-	lfd	fp31,_UC_FREGS+(31*8)(r31)
-
-	/* Restore LR and CCR, and set CTR to the NIP value */
-	lwz	r3,_UC_GREGS+(PT_LNK*4)(r31)
-	lwz	r4,_UC_GREGS+(PT_NIP*4)(r31)
-	lwz	r5,_UC_GREGS+(PT_CCR*4)(r31)
-	mtlr	r3
-	mtctr	r4
-	mtcr	r5
-
-	/* Restore the general registers */
-	lwz	r1,_UC_GREGS+(PT_R1*4)(r31)
-	lwz	r3,_UC_GREGS+(PT_R3*4)(r31)
-	lwz	r4,_UC_GREGS+(PT_R4*4)(r31)
-	lwz	r5,_UC_GREGS+(PT_R5*4)(r31)
-	lwz	r6,_UC_GREGS+(PT_R6*4)(r31)
-	lwz	r7,_UC_GREGS+(PT_R7*4)(r31)
-	lwz	r8,_UC_GREGS+(PT_R8*4)(r31)
-	lwz	r9,_UC_GREGS+(PT_R9*4)(r31)
-	lwz	r10,_UC_GREGS+(PT_R10*4)(r31)
-	lwz	r11,_UC_GREGS+(PT_R11*4)(r31)
-	lwz	r12,_UC_GREGS+(PT_R12*4)(r31)
-	lwz	r13,_UC_GREGS+(PT_R13*4)(r31)
-	lwz	r14,_UC_GREGS+(PT_R14*4)(r31)
-	lwz	r15,_UC_GREGS+(PT_R15*4)(r31)
-	lwz	r16,_UC_GREGS+(PT_R16*4)(r31)
-	lwz	r17,_UC_GREGS+(PT_R17*4)(r31)
-	lwz	r18,_UC_GREGS+(PT_R18*4)(r31)
-	lwz	r19,_UC_GREGS+(PT_R19*4)(r31)
-	lwz	r20,_UC_GREGS+(PT_R20*4)(r31)
-	lwz	r21,_UC_GREGS+(PT_R21*4)(r31)
-	lwz	r22,_UC_GREGS+(PT_R22*4)(r31)
-	lwz	r23,_UC_GREGS+(PT_R23*4)(r31)
-	lwz	r24,_UC_GREGS+(PT_R24*4)(r31)
-	lwz	r25,_UC_GREGS+(PT_R25*4)(r31)
-	lwz	r26,_UC_GREGS+(PT_R26*4)(r31)
-	lwz	r27,_UC_GREGS+(PT_R27*4)(r31)
-	lwz	r28,_UC_GREGS+(PT_R28*4)(r31)
-	lwz	r29,_UC_GREGS+(PT_R29*4)(r31)
-	lwz	r30,_UC_GREGS+(PT_R30*4)(r31)
-	lwz	r31,_UC_GREGS+(PT_R31*4)(r31)
-
-	bctr
-
-L(novec_error_exit):
-	lwz	r31,12(r1)
-	lwz	r0,20(r1)
-	addi	r1,r1,16
-	mtlr	r0
-	blr
-
-L(novec_do_sigret):
-	addi	r1,r4,-0xd0
-	li	r0,SYS_ify(rt_sigreturn)
-	sc
-	/* NOTREACHED */
-
-END(__novec_swapcontext)
 	.previous
 
 compat_symbol (libc, __novec_swapcontext, swapcontext, GLIBC_2_3_3)
@@ -714,8 +69,8 @@ compat_symbol (libc, __novec_swapcontext, swapcontext, GLIBC_2_3_3)
 
 #if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
 
-#define _ERRNO_H	1
-#include <bits/errno.h>
+# define _ERRNO_H	1
+# include <bits/errno.h>
 
 	compat_text_section
 ENTRY (__swapcontext_stub)
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.sym b/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.sym
index 662c693303..293761f260 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.sym
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.sym
@@ -7,14 +7,6 @@
 SIG_BLOCK
 SIG_SETMASK
 
--- XXX Do these correspond to some struct?
-_FRAME_BACKCHAIN	0
-_FRAME_LR_SAVE		4
-_FRAME_PARM_SAVE1	8
-_FRAME_PARM_SAVE2	12
-_FRAME_PARM_SAVE3	16
-_FRAME_PARM_SAVE4	20
-
 -- Offsets in ucontext_t.
 #define ucontext(member)	offsetof (ucontext_t, member)
 _UC_LINK		ucontext (uc_link)