134 lines
5.2 KiB
C
134 lines
5.2 KiB
C
/* 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 (__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
|