diff options
Diffstat (limited to 'sysdeps/sh/sh3/bits')
| -rw-r--r-- | sysdeps/sh/sh3/bits/endian.h | 13 | ||||
| -rw-r--r-- | sysdeps/sh/sh3/bits/huge_val.h | 104 | ||||
| -rw-r--r-- | sysdeps/sh/sh3/bits/setjmp.h | 45 |
3 files changed, 162 insertions, 0 deletions
diff --git a/sysdeps/sh/sh3/bits/endian.h b/sysdeps/sh/sh3/bits/endian.h new file mode 100644 index 0000000000..1fef1ff938 --- /dev/null +++ b/sysdeps/sh/sh3/bits/endian.h @@ -0,0 +1,13 @@ +/* SH is bi-endian but with a big-endian FPU. */ + +#ifndef _ENDIAN_H +# error "Never use <bits/endian.h> directly; include <endian.h> instead." +#endif + +#ifdef __LITTLE_ENDIAN__ +#define __BYTE_ORDER __LITTLE_ENDIAN +#define __FLOAT_WORD_ORDER __LITTLE_ENDIAN +#else +#define __BYTE_ORDER __BIG_ENDIAN +#define __FLOAT_WORD_ORDER __BIG_ENDIAN +#endif diff --git a/sysdeps/sh/sh3/bits/huge_val.h b/sysdeps/sh/sh3/bits/huge_val.h new file mode 100644 index 0000000000..a058c999ae --- /dev/null +++ b/sysdeps/sh/sh3/bits/huge_val.h @@ -0,0 +1,104 @@ +/* `HUGE_VAL' constants for IEEE 754 machines (where it is infinity). + Used by <stdlib.h> and <math.h> functions for overflow. + SH version. + Copyright (C) 1992, 95, 96, 97, 98, 99, 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. */ + +#ifndef _MATH_H +# error "Never use <bits/huge_val.h> directly; include <math.h> instead." +#endif + +#include <features.h> + +/* IEEE positive infinity (-HUGE_VAL is negative infinity). */ + +#ifdef __GNUC__ + +# if __GNUC_PREREQ(2,96) + +# define HUGE_VAL (__extension__ 0x1.0p2047) + +# else + +# define HUGE_VAL \ + (__extension__ \ + ((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; }) \ + { __l: 0x000000007ff00000ULL }).__d) + +# endif + +#else /* not GCC */ + +# include <endian.h> + +typedef union { unsigned char __c[8]; double __d; } __huge_val_t; + +# if __BYTE_ORDER == __BIG_ENDIAN +# define __HUGE_VAL_bytes { 0, 0, 0, 0, 0x7f, 0xf0, 0, 0 } +# endif +# if __BYTE_ORDER == __LITTLE_ENDIAN +# define __HUGE_VAL_bytes { 0, 0, 0xf0, 0x7f, 0, 0, 0, 0 } +# endif + +static __huge_val_t __huge_val = { __HUGE_VAL_bytes }; +# define HUGE_VAL (__huge_val.__d) + +#endif /* GCC. */ + + +/* ISO C99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */ + +#ifdef __USE_ISOC99 + +# ifdef __GNUC__ + +# if __GNUC_PREREQ(2,96) + +# define HUGE_VALF (__extension__ 0x1.0p255f) + +# else + +# define HUGE_VALF \ + (__extension__ \ + ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; }) \ + { __l: 0x7f800000UL }).__d) + +# endif + +# else /* not GCC */ + +typedef union { unsigned char __c[4]; float __f; } __huge_valf_t; + +# if __BYTE_ORDER == __BIG_ENDIAN +# define __HUGE_VALF_bytes { 0x7f, 0x80, 0, 0 } +# endif +# if __BYTE_ORDER == __LITTLE_ENDIAN +# define __HUGE_VALF_bytes { 0, 0, 0x80, 0x7f } +# endif + +static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes }; +# define HUGE_VALF (__huge_valf.__f) + +# endif /* GCC. */ + + +/* Generally there is no separate `long double' format and it is the + same as `double'. */ +# define HUGE_VALL HUGE_VAL + +#endif /* __USE_ISOC99. */ diff --git a/sysdeps/sh/sh3/bits/setjmp.h b/sysdeps/sh/sh3/bits/setjmp.h new file mode 100644 index 0000000000..d2c4a420cd --- /dev/null +++ b/sysdeps/sh/sh3/bits/setjmp.h @@ -0,0 +1,45 @@ +/* Copyright (C) 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. */ + +/* Define the machine-dependent type `jmp_buf'. SH version. */ + +#ifndef _SETJMP_H +# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead." +#endif + +#ifndef _ASM +typedef struct + { + /* Callee-saved registers r8 through r15. */ + int __regs[8]; + + /* Program counter. */ + void * __pc; + + /* The global pointer. */ + void * __gbr; + + } __jmp_buf[1]; +#endif + +#define JB_SIZE (4 * 10) + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < &(jmpbuf)[0].__regs[7]) |