--- /dev/null
+++ Libc/Libc-583/ppc/sys/_setjmp.h
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ *	Copyright (c) 1998, Apple Computer Inc. All rights reserved.
+ *
+ *	File: _setjmp.h
+ *
+ *	Defines for register offsets in the save area.
+ *
+ */
+
+/* NOTE: jmp_bufs are only 4-byte aligned.  This means we
+ * need to pad before the VR and FPR save areas, so that they
+ * can be naturally aligned in the buffer.  In case a jmp_buf
+ * is bcopy'd to a different alignment between the setjmp
+ * and longjmp, we need to save the jmp_buf address in the
+ * jmp_buf at setjmp time, so we can realign before reloading.
+ *
+ * ALSO NOTE: the typedef for jmpbufs in <ppc/setjmp.h> is
+ * 192 ints (0x300 bytes) long, due to incorrectly assuming
+ * that we need to save all 32 VRs in a jmpbuf.  This is
+ * fortuitous, because when it came time to add additional
+ * fields and expand GPRs for 64-bit mode, there was plenty
+ * of unused space!
+ */
+ 
+ /* 32-bit-mode layout */
+ 
+#if defined(__ppc__)
+ 
+#define JMP_r1	0x00
+#define JMP_r2	0x04
+#define JMP_r13	0x08
+#define JMP_r14	0x0c
+#define JMP_r15	0x10
+#define JMP_r16	0x14
+#define JMP_r17	0x18
+#define JMP_r18	0x1c
+#define JMP_r19	0x20
+#define JMP_r20	0x24
+#define JMP_r21	0x28
+#define JMP_r22	0x2c
+#define JMP_r23	0x30
+#define JMP_r24	0x34
+#define JMP_r25	0x38
+#define JMP_r26	0x3c
+#define JMP_r27	0x40
+#define JMP_r28	0x44
+#define JMP_r29	0x48
+#define JMP_r30	0x4c
+#define JMP_r31	0x50
+#define JMP_lr  0x54
+#define JMP_cr  0x58
+#define JMP_SIGFLAG 0x5c
+#define JMP_sig	0x60    /* reserve 8 bytes for sigmask */
+#define JMP_fpscr  0x68 /* reserve 8 bytes for FPSCR too */
+#define JMP_vrsave 0x70
+#define JMP_addr_at_setjmp 0x74
+/* 12 bytes padding here */
+#define JMP_vr_base_addr 0x84
+/* save room for 12 VRs (v20-v31), or 0xC0 bytes */
+#define JMP_fp_base_addr 0x144
+/* save room for 18 FPRs (f14-f31), or 0x90 bytes */
+#define	JMP_ss_flags	 0x1d4
+#define JMP_buf_end 0x1d8
+
+ 
+ /* 64-bit-mode layout */
+
+#elif defined(__ppc64__)
+
+#define JMP_r1	0x00
+#define JMP_r2	0x08
+#define JMP_r13	0x10
+#define JMP_r14	0x18
+#define JMP_r15	0x20
+#define JMP_r16	0x28
+#define JMP_r17	0x30
+#define JMP_r18	0x38
+#define JMP_r19	0x40
+#define JMP_r20	0x48
+#define JMP_r21	0x50
+#define JMP_r22	0x58
+#define JMP_r23	0x60
+#define JMP_r24	0x68
+#define JMP_r25	0x70
+#define JMP_r26	0x78
+#define JMP_r27	0x80
+#define JMP_r28	0x88
+#define JMP_r29	0x90
+#define JMP_r30	0x98
+#define JMP_r31	0xa0
+#define JMP_lr  0xa8
+#define JMP_cr  0xb0
+#define JMP_sig	0xb8
+#define JMP_SIGFLAG 0xc0
+#define JMP_fpscr  0xc8
+#define JMP_vrsave 0xd0
+#define JMP_addr_at_setjmp 0xd8
+/* 12 bytes padding here */
+#define JMP_vr_base_addr 0x0ec
+/* save room for 12 VRs (v20-v31), or 0xC0 bytes */
+#define JMP_fp_base_addr 0x1ac
+/* save room for 18 FPRs (f14-f31), or 0x90 bytes */
+#define	JMP_ss_flags	 0x23c
+#define JMP_buf_end 0x240
+
+#else
+#error architecture not supported
+#endif