about summary refs log tree commit diff
path: root/sysdeps/powerpc/powerpc64/setjmp-common.S
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/powerpc/powerpc64/setjmp-common.S')
-rw-r--r--sysdeps/powerpc/powerpc64/setjmp-common.S171
1 files changed, 171 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/setjmp-common.S b/sysdeps/powerpc/powerpc64/setjmp-common.S
new file mode 100644
index 0000000000..541b5d4276
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/setjmp-common.S
@@ -0,0 +1,171 @@
+/* setjmp for PowerPC64.
+   Copyright (C) 1995-2003, 2004 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., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+#define _ASM
+#define _SETJMP_H
+#ifdef __NO_VMX__
+#include <novmxsetjmp.h>
+#else
+#include <bits/setjmp.h>
+#endif
+#include <bp-sym.h>
+#include <bp-asm.h>
+
+#ifndef __NO_VMX__
+	.section	".toc","aw"
+.LC__dl_hwcap:
+#ifdef SHARED
+	.tc _rtld_global[TC],_rtld_global
+#else
+	.tc _dl_hwcap[TC],_dl_hwcap
+#endif
+	.section ".text"
+#endif
+
+ENTRY (BP_SYM (__sigsetjmp))
+	CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE)
+	std  r1,(JB_GPR1*8)(3)
+	mflr r0
+	std  r2,(JB_GPR2*8)(3)
+	std  r14,((JB_GPRS+0)*8)(3)
+	stfd fp14,((JB_FPRS+0)*8)(3)
+	std  r0,(JB_LR*8)(3)
+	std  r15,((JB_GPRS+1)*8)(3)
+	stfd fp15,((JB_FPRS+1)*8)(3)
+	mfcr r0
+	std  r16,((JB_GPRS+2)*8)(3)
+	stfd fp16,((JB_FPRS+2)*8)(3)
+	std  r0,(JB_CR*8)(3)
+	std  r17,((JB_GPRS+3)*8)(3)
+	stfd fp17,((JB_FPRS+3)*8)(3)
+	std  r18,((JB_GPRS+4)*8)(3)
+	stfd fp18,((JB_FPRS+4)*8)(3)
+	std  r19,((JB_GPRS+5)*8)(3)
+	stfd fp19,((JB_FPRS+5)*8)(3)
+	std  r20,((JB_GPRS+6)*8)(3)
+	stfd fp20,((JB_FPRS+6)*8)(3)
+	std  r21,((JB_GPRS+7)*8)(3)
+	stfd fp21,((JB_FPRS+7)*8)(3)
+	std  r22,((JB_GPRS+8)*8)(3)
+	stfd fp22,((JB_FPRS+8)*8)(3)
+	std  r23,((JB_GPRS+9)*8)(3)
+	stfd fp23,((JB_FPRS+9)*8)(3)
+	std  r24,((JB_GPRS+10)*8)(3)
+	stfd fp24,((JB_FPRS+10)*8)(3)
+	std  r25,((JB_GPRS+11)*8)(3)
+	stfd fp25,((JB_FPRS+11)*8)(3)
+	std  r26,((JB_GPRS+12)*8)(3)
+	stfd fp26,((JB_FPRS+12)*8)(3)
+	std  r27,((JB_GPRS+13)*8)(3)
+	stfd fp27,((JB_FPRS+13)*8)(3)
+	std  r28,((JB_GPRS+14)*8)(3)
+	stfd fp28,((JB_FPRS+14)*8)(3)
+	std  r29,((JB_GPRS+15)*8)(3)
+	stfd fp29,((JB_FPRS+15)*8)(3)
+	std  r30,((JB_GPRS+16)*8)(3)
+	stfd fp30,((JB_FPRS+16)*8)(3)
+	std  r31,((JB_GPRS+17)*8)(3)
+	stfd fp31,((JB_FPRS+17)*8)(3)
+#ifndef __NO_VMX__
+	ld    r5,.LC__dl_hwcap@toc(r2)
+#ifdef SHARED
+	/* Load _rtld-global._dl_hwcap.  */
+	ld    r5,RTLD_GLOBAL_DL_HWCAP_OFFSET(r5)
+#else
+	ld    r5,0(r5) /* Load extern _dl_hwcap.  */
+#endif
+	andis.  r5,r5,(PPC_FEATURE_HAS_ALTIVEC >> 16)
+	beq	no_vmx
+	la	r5,((JB_VRS)*8)(3)
+	andi.	r6,r5,0xf
+	mfspr	r0,VRSAVE
+	stw	r0,((JB_VRSAVE)*8)(3)
+	addi	r6,r5,16
+	beq+	aligned_save_vmx
+	lvsr	v0,0,r5
+	vspltisb v1,-1         /* set v1 to all 1's */
+	vspltisb v2,0          /* set v2 to all 0's */
+	vperm   v3,v2,v1,v0   /* v3 contains shift mask with num all 1 bytes
+				 on left = misalignment  */
+
+
+	/* Special case for v20 we need to preserve what is in save area
+	   below v20 before obliterating it */
+	lvx     v5,0,r5
+	vperm   v20,v20,v20,v0
+	vsel    v5,v5,v20,v3
+	vsel    v20,v20,v2,v3
+	stvx    v5,0,r5
+
+#define save_2vmx_partial(savevr,prev_savevr,hivr,shiftvr,maskvr,savegpr,addgpr) \
+	addi    addgpr,addgpr,32; \
+	vperm   savevr,savevr,savevr,shiftvr; \
+	vsel    hivr,prev_savevr,savevr,maskvr; \
+	stvx    hivr,0,savegpr;
+
+	save_2vmx_partial(v21,v20,v5,v0,v3,r6,r5)
+	save_2vmx_partial(v22,v21,v5,v0,v3,r5,r6)
+	save_2vmx_partial(v23,v22,v5,v0,v3,r6,r5)
+	save_2vmx_partial(v24,v23,v5,v0,v3,r5,r6)
+	save_2vmx_partial(v25,v24,v5,v0,v3,r6,r5)
+	save_2vmx_partial(v26,v25,v5,v0,v3,r5,r6)
+	save_2vmx_partial(v27,v26,v5,v0,v3,r6,r5)
+	save_2vmx_partial(v28,v27,v5,v0,v3,r5,r6)
+	save_2vmx_partial(v29,v28,v5,v0,v3,r6,r5)
+	save_2vmx_partial(v30,v29,v5,v0,v3,r5,r6)
+
+	/* Special case for r31 we need to preserve what is in save area
+	   above v31 before obliterating it */
+	addi    r5,r5,32
+	vperm   v31,v31,v31,v0
+	lvx     v4,0,r5
+	vsel    v5,v30,v31,v3
+	stvx    v5,0,r6
+	vsel    v4,v31,v4,v3
+	stvx    v4,0,r5
+	b	no_vmx
+
+aligned_save_vmx:
+	stvx	20,0,r5
+	addi	r5,r5,32
+	stvx	21,0,r6
+	addi	r6,r6,32
+	stvx	22,0,r5
+	addi	r5,r5,32
+	stvx	23,0,r6
+	addi	r6,r6,32
+	stvx	24,0,r5
+	addi	r5,r5,32
+	stvx	25,0,r6
+	addi	r6,r6,32
+	stvx	26,0,r5
+	addi	r5,r5,32
+	stvx	27,0,r6
+	addi	r6,r6,32
+	stvx	28,0,r5
+	addi	r5,r5,32
+	stvx	29,0,r6
+	addi	r6,r6,32
+	stvx	30,0,r5
+	stvx	31,0,r6
+no_vmx:
+#endif
+	b JUMPTARGET (BP_SYM (__sigjmp_save))
+END (BP_SYM (__sigsetjmp))