Add powerpc port done by David Schleef <ds@schleef.org>

1 files changed, 75 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/powerpc/longjmp.S b/libc/sysdeps/linux/powerpc/longjmp.S
new file mode 100644
index 000000000..e30f7fd26
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/longjmp.S
@@ -0,0 +1,75 @@
+/* longjmp for PowerPC.
+   Copyright (C) 1995, 1996, 1997, 1999, 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* So we can use r3, r4, instead of 3, 4 */
+#include "ppc_asm.h"
+
+#define _ASM
+#define _SETJMP_H
+#include <bits/setjmp.h>
+
+.global	longjmp;
+.align	4;
+
+longjmp:
+	lwz r1,(JB_GPR1*4)(r3)
+	lwz r2,(JB_GPR2*4)(r3)
+	lwz r0,(JB_LR*4)(r3)
+	lwz r14,((JB_GPRS+0)*4)(r3)
+	lfd fr14,((JB_FPRS+0*2)*4)(r3)
+	lwz r15,((JB_GPRS+1)*4)(r3)
+	lfd fr15,((JB_FPRS+1*2)*4)(r3)
+	lwz r16,((JB_GPRS+2)*4)(r3)
+	lfd fr16,((JB_FPRS+2*2)*4)(r3)
+	lwz r17,((JB_GPRS+3)*4)(r3)
+	lfd fr17,((JB_FPRS+3*2)*4)(r3)
+	lwz r18,((JB_GPRS+4)*4)(r3)
+	lfd fr18,((JB_FPRS+4*2)*4)(r3)
+	lwz r19,((JB_GPRS+5)*4)(r3)
+	lfd fr19,((JB_FPRS+5*2)*4)(r3)
+	lwz r20,((JB_GPRS+6)*4)(r3)
+	lfd fr20,((JB_FPRS+6*2)*4)(r3)
+	mtlr r0
+	lwz r21,((JB_GPRS+7)*4)(r3)
+	lfd fr21,((JB_FPRS+7*2)*4)(r3)
+	lwz r22,((JB_GPRS+8)*4)(r3)
+	lfd fr22,((JB_FPRS+8*2)*4)(r3)
+	lwz r0,(JB_CR*4)(r3)
+	lwz r23,((JB_GPRS+9)*4)(r3)
+	lfd fr23,((JB_FPRS+9*2)*4)(r3)
+	lwz r24,((JB_GPRS+10)*4)(r3)
+	lfd fr24,((JB_FPRS+10*2)*4)(r3)
+	lwz r25,((JB_GPRS+11)*4)(r3)
+	lfd fr25,((JB_FPRS+11*2)*4)(r3)
+	mtcrf 0xFF,r0
+	lwz r26,((JB_GPRS+12)*4)(r3)
+	lfd fr26,((JB_FPRS+12*2)*4)(r3)
+	lwz r27,((JB_GPRS+13)*4)(r3)
+	lfd fr27,((JB_FPRS+13*2)*4)(r3)
+	lwz r28,((JB_GPRS+14)*4)(r3)
+	lfd fr28,((JB_FPRS+14*2)*4)(r3)
+	lwz r29,((JB_GPRS+15)*4)(r3)
+	lfd fr29,((JB_FPRS+15*2)*4)(r3)
+	lwz r30,((JB_GPRS+16)*4)(r3)
+	lfd fr30,((JB_FPRS+16*2)*4)(r3)
+	lwz r31,((JB_GPRS+17)*4)(r3)
+	lfd fr31,((JB_FPRS+17*2)*4)(r3)
+	mr r3,r4
+	blr
+.size longjmp,.-longjmp;