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+/* Copyright (C) 1991-1999, 2001, 2002, 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.  */
+
+/* Copied from setjmp/setjmp.h, powerpc/bits/setjmp.h and modified
+   appropriately to keep backward compatible with setjmp without
+   AltiVec/VMX support.
+
+   This file is not exported and the interfaces are private to libc.  */
+
+#ifndef	__NOVMX_SETJMP_H
+#define	__NOVMX_SETJMP_H	1
+
+#include <bits/wordsize.h>
+
+/* The following definitions are needed by ASM implementations of the old
+   (novmx) __longjmp/__setjmp functions.  */
+
+# define JB_GPR1   0  /* Also known as the stack pointer */
+# define JB_GPR2   1
+# define JB_LR     2  /* The address we will return to */
+# if __WORDSIZE == 64
+#  define JB_GPRS   3  /* GPRs 14 through 31 are saved, 18*2 words total.  */
+#  define JB_CR     21 /* Condition code registers. */
+#  define JB_FPRS   22 /* FPRs 14 through 31 are saved, 18*2 words total.  */
+#  define JB_SIZE   (40 * 8)
+# else
+#  define JB_GPRS   3  /* GPRs 14 through 31 are saved, 18 in total.  */
+#  define JB_CR     21 /* Condition code registers.  */
+#  define JB_FPRS   22 /* FPRs 14 through 31 are saved, 18*2 words total.  */
+#  define JB_SIZE   (58 * 4)
+# endif
+
+#ifndef	_ASM
+/* The following definitions are needed by the novmx* implementations of
+   setjmp/longjmp/sigsetjmp/etc that wrapper __setjmp/__longjmp.  */
+
+# if __WORDSIZE == 64
+typedef long int __jmp_buf[40];
+# else
+typedef long int __jmp_buf[58];
+# endif
+
+# include <bits/sigset.h>		/* Get `__sigset_t'.  */
+
+/* Calling environment, plus possibly a saved signal mask.  */
+typedef struct __novmx__jmp_buf_tag
+  {
+    /* NOTE: The machine-dependent definitions of `__sigsetjmp'
+       assume that a `jmp_buf' begins with a `__jmp_buf' and that
+       `__mask_was_saved' follows it.  Do not move these members
+       or add others before it.  */
+    __jmp_buf __jmpbuf;		/* Calling environment.  */
+    int __mask_was_saved;	/* Saved the signal mask?  */
+    __sigset_t __saved_mask;	/* Saved signal mask.  */
+  } __novmx__jmp_buf[1];
+
+
+/* Store the calling environment in ENV, also saving the signal mask.
+   Return 0.  */
+extern int __novmxsetjmp (__novmx__jmp_buf __env);
+
+/* Store the calling environment in ENV, also saving the
+   signal mask if SAVEMASK is nonzero.  Return 0.
+   This is the internal name for `sigsetjmp'.  */
+extern int __novmx__sigsetjmp (struct __novmx__jmp_buf_tag __env[1],
+			       int __savemask);
+
+/* Store the calling environment in ENV, not saving the signal mask.
+   Return 0.  */
+extern int __novmx_setjmp (struct __novmx__jmp_buf_tag __env[1]);
+
+/* Jump to the environment saved in ENV, making the
+   `setjmp' call there return VAL, or 1 if VAL is 0.  */
+extern void __novmxlongjmp (struct __novmx__jmp_buf_tag __env[1], int __val)
+     __attribute__ ((__noreturn__));
+
+/* Same.  Usually `_longjmp' is used with `_setjmp', which does not save
+   the signal mask.  But it is how ENV was saved that determines whether
+   `longjmp' restores the mask; `_longjmp' is just an alias.  */
+extern void __novmx_longjmp (struct __novmx__jmp_buf_tag __env[1], int __val)
+     __attribute__ ((__noreturn__));
+
+/* Use the same type for `jmp_buf' and `sigjmp_buf'.
+   The `__mask_was_saved' flag determines whether
+   or not `longjmp' will restore the signal mask.  */
+typedef struct __novmx__jmp_buf_tag __novmx__sigjmp_buf[1];
+
+/* Jump to the environment saved in ENV, making the
+   sigsetjmp call there return VAL, or 1 if VAL is 0.
+   Restore the signal mask if that sigsetjmp call saved it.
+   This is just an alias `longjmp'.  */
+extern void __novmxsiglongjmp (__novmx__sigjmp_buf __env, int __val)
+     __attribute__ ((__noreturn__));
+
+/* Internal machine-dependent function to restore context sans signal mask.  */
+extern void __novmx__longjmp (__novmx__jmp_buf __env, int __val)
+     __attribute__ ((__noreturn__));
+
+/* Internal function to possibly save the current mask of blocked signals
+   in ENV, and always set the flag saying whether or not it was saved.
+   This is used by the machine-dependent definition of `__sigsetjmp'.
+   Always returns zero, for convenience.  */
+extern int __novmx__sigjmp_save (__novmx__jmp_buf __env, int __savemask);
+
+extern void _longjmp_unwind (__novmx__jmp_buf env, int val);
+
+extern void __novmx__libc_siglongjmp (__novmx__sigjmp_buf env, int val)
+          __attribute__ ((noreturn));
+
+extern void __novmx__libc_longjmp (__novmx__sigjmp_buf env, int val)
+     __attribute__ ((noreturn));
+
+libc_hidden_proto (__novmx__libc_longjmp)
+libc_hidden_proto (__novmx_setjmp)
+libc_hidden_proto (__novmx__sigsetjmp)
+#endif /* !_ASM */
+
+#endif