added includes needed for printf_fp (based on 2.2.5)
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11649 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
@@ -0,0 +1,41 @@
|
||||
/* Definitions for x86 syntax variations.
|
||||
Copyright (C) 1992, 1994, 1995, 1997, 2000 Free Software Foundation, Inc.
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||||
This file is part of the GNU C Library. Its master source is NOT part of
|
||||
the C library, however. The master source lives in the GNU MP 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. */
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||||
|
||||
#undef ALIGN
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||||
#if defined NOLOG_ALIGN || defined HAVE_ELF
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||||
# define ALIGN(log) .align 1<<log
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||||
#else
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# define ALIGN(log) .align log
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#endif
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||||
|
||||
#undef L
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||||
#ifdef __ELF__
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||||
# ifdef __STDC__
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# define L(body) .L##body
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# else
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# define L(body) .L/**/body
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# endif
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||||
#else
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# ifdef __STDC__
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# define L(body) L##body
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# else
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# define L(body) L/**/body
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# endif
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#endif
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@@ -0,0 +1,81 @@
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/* `HUGE_VAL' constants for ix86 (where it is infinity).
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Used by <stdlib.h> and <math.h> functions for overflow.
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Copyright (C) 1992, 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 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. */
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||||
|
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#ifndef _MATH_H
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# error "Never use <bits/huge_val.h> directly; include <math.h> instead."
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#endif
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#include <features.h>
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/* IEEE positive infinity (-HUGE_VAL is negative infinity). */
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#if __GNUC_PREREQ(2,96)
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# define HUGE_VAL (__extension__ 0x1.0p2047)
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#else
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# define __HUGE_VAL_bytes { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f }
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# define __huge_val_t union { unsigned char __c[8]; double __d; }
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# ifdef __GNUC__
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# define HUGE_VAL (__extension__ \
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((__huge_val_t) { __c: __HUGE_VAL_bytes }).__d)
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# else /* Not GCC. */
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static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
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# define HUGE_VAL (__huge_val.__d)
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# endif /* GCC. */
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#endif /* GCC 2.95 */
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/* ISO C99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */
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#ifdef __USE_ISOC99
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# if __GNUC_PREREQ(2,96)
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# define HUGE_VALF (__extension__ 0x1.0p255f)
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# define HUGE_VALL (__extension__ 0x1.0p32767L)
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# else
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# define __HUGE_VALF_bytes { 0, 0, 0x80, 0x7f }
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# define __huge_valf_t union { unsigned char __c[4]; float __f; }
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# ifdef __GNUC__
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# define HUGE_VALF (__extension__ \
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((__huge_valf_t) { __c: __HUGE_VALF_bytes }).__f)
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# else /* Not GCC. */
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static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
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# define HUGE_VALF (__huge_valf.__f)
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# endif /* GCC. */
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# define __HUGE_VALL_bytes { 0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0x7f, 0, 0 }
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# define __huge_vall_t union { unsigned char __c[12]; long double __ld; }
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# ifdef __GNUC__
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# define HUGE_VALL (__extension__ \
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((__huge_vall_t) { __c: __HUGE_VALL_bytes }).__ld)
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# else /* Not GCC. */
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static __huge_vall_t __huge_vall = { __HUGE_VALL_bytes };
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# define HUGE_VALL (__huge_vall.__ld)
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# endif /* GCC. */
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# endif /* GCC 2.95 */
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||||
|
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#endif /* __USE_ISOC99. */
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@@ -0,0 +1,41 @@
|
||||
/* Copyright (C) 1997, 1998, 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 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. */
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||||
|
||||
#if !defined _MATH_H && !defined _COMPLEX_H
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# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
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||||
#endif
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||||
|
||||
#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
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||||
# define _MATH_H_MATHDEF 1
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||||
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||||
/* The ix87 FPUs evaluate all values in the 80 bit floating-point format
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which is also available for the user as `long double'. Therefore we
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||||
define: */
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typedef long double float_t; /* `float' expressions are evaluated as
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||||
`long double'. */
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typedef long double double_t; /* `double' expressions are evaluated as
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`long double'. */
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||||
/* Define `INFINITY' as value of type `float'. */
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# define INFINITY HUGE_VALF
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/* The values returned by `ilogb' for 0 and NaN respectively. */
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# define FP_ILOGB0 (-2147483647 - 1)
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# define FP_ILOGBNAN (-2147483647 - 1)
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||||
#endif /* ISO C99 */
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@@ -0,0 +1,707 @@
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||||
/* Inline math functions for i387.
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||||
Copyright (C) 1995,96,97,98,99,2000,2001 Free Software Foundation, Inc.
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||||
This file is part of the GNU C Library.
|
||||
Contributed by John C. Bowman <[email protected]>, 1995.
|
||||
|
||||
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. */
|
||||
|
||||
#ifndef _MATH_H
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||||
# error "Never use <bits/mathinline.h> directly; include <math.h> instead."
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#endif
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||||
|
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#ifdef __cplusplus
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||||
# define __MATH_INLINE __inline
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||||
#else
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||||
# define __MATH_INLINE extern __inline
|
||||
#endif
|
||||
|
||||
|
||||
#if defined __USE_ISOC99 && defined __GNUC__ && __GNUC__ >= 2
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||||
# if __GNUC_PREREQ (2,97)
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||||
/* GCC 2.97 and up have builtins that actually can be used. */
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# define isgreater(x, y) __builtin_isgreater (x, y)
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# define isgreaterequal(x, y) __builtin_isgreaterequal (x, y)
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# define isless(x, y) __builtin_isless (x, y)
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||||
# define islessequal(x, y) __builtin_islessequal (x, y)
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||||
# define islessgreater(x, y) __builtin_islessgreater (x, y)
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# define isunordered(x, y) __builtin_isunordered (x, y)
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||||
# else
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||||
/* ISO C99 defines some macros to perform unordered comparisons. The
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||||
ix87 FPU supports this with special opcodes and we should use them.
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||||
These must not be inline functions since we have to be able to handle
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||||
all floating-point types. */
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||||
# ifdef __i686__
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||||
/* For the PentiumPro and more recent processors we can provide
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||||
better code. */
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# define isgreater(x, y) \
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||||
({ register char __result; \
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__asm__ ("fucomip %%st(1), %%st; seta %%al" \
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: "=a" (__result) : "u" (y), "t" (x) : "cc", "st"); \
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__result; })
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||||
# define isgreaterequal(x, y) \
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||||
({ register char __result; \
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__asm__ ("fucomip %%st(1), %%st; setae %%al" \
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: "=a" (__result) : "u" (y), "t" (x) : "cc", "st"); \
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||||
__result; })
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||||
|
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# define isless(x, y) \
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({ register char __result; \
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||||
__asm__ ("fucomip %%st(1), %%st; seta %%al" \
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||||
: "=a" (__result) : "u" (x), "t" (y) : "cc", "st"); \
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||||
__result; })
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||||
|
||||
# define islessequal(x, y) \
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||||
({ register char __result; \
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||||
__asm__ ("fucomip %%st(1), %%st; setae %%al" \
|
||||
: "=a" (__result) : "u" (x), "t" (y) : "cc", "st"); \
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||||
__result; })
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||||
|
||||
# define islessgreater(x, y) \
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||||
({ register char __result; \
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||||
__asm__ ("fucomip %%st(1), %%st; setne %%al" \
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||||
: "=a" (__result) : "u" (y), "t" (x) : "cc", "st"); \
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__result; })
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||||
|
||||
# define isunordered(x, y) \
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||||
({ register char __result; \
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||||
__asm__ ("fucomip %%st(1), %%st; setp %%al" \
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||||
: "=a" (__result) : "u" (y), "t" (x) : "cc", "st"); \
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||||
__result; })
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||||
# else
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||||
/* This is the dumb, portable code for i386 and above. */
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||||
# define isgreater(x, y) \
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||||
({ register char __result; \
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||||
__asm__ ("fucompp; fnstsw; testb $0x45, %%ah; setz %%al" \
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||||
: "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \
|
||||
__result; })
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||||
|
||||
# define isgreaterequal(x, y) \
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||||
({ register char __result; \
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||||
__asm__ ("fucompp; fnstsw; testb $0x05, %%ah; setz %%al" \
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||||
: "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \
|
||||
__result; })
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||||
|
||||
# define isless(x, y) \
|
||||
({ register char __result; \
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||||
__asm__ ("fucompp; fnstsw; testb $0x45, %%ah; setz %%al" \
|
||||
: "=a" (__result) : "u" (x), "t" (y) : "cc", "st", "st(1)"); \
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||||
__result; })
|
||||
|
||||
# define islessequal(x, y) \
|
||||
({ register char __result; \
|
||||
__asm__ ("fucompp; fnstsw; testb $0x05, %%ah; setz %%al" \
|
||||
: "=a" (__result) : "u" (x), "t" (y) : "cc", "st", "st(1)"); \
|
||||
__result; })
|
||||
|
||||
# define islessgreater(x, y) \
|
||||
({ register char __result; \
|
||||
__asm__ ("fucompp; fnstsw; testb $0x44, %%ah; setz %%al" \
|
||||
: "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \
|
||||
__result; })
|
||||
|
||||
# define isunordered(x, y) \
|
||||
({ register char __result; \
|
||||
__asm__ ("fucompp; fnstsw; sahf; setp %%al" \
|
||||
: "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \
|
||||
__result; })
|
||||
# endif /* __i686__ */
|
||||
# endif /* GCC 2.97 */
|
||||
|
||||
/* The gcc, version 2.7 or below, has problems with all this inlining
|
||||
code. So disable it for this version of the compiler. */
|
||||
# if __GNUC_PREREQ (2, 8)
|
||||
/* Test for negative number. Used in the signbit() macro. */
|
||||
__MATH_INLINE int
|
||||
__signbitf (float __x) __THROW
|
||||
{
|
||||
__extension__ union { float __f; int __i; } __u = { __f: __x };
|
||||
return __u.__i < 0;
|
||||
}
|
||||
__MATH_INLINE int
|
||||
__signbit (double __x) __THROW
|
||||
{
|
||||
__extension__ union { double __d; int __i[2]; } __u = { __d: __x };
|
||||
return __u.__i[1] < 0;
|
||||
}
|
||||
__MATH_INLINE int
|
||||
__signbitl (long double __x) __THROW
|
||||
{
|
||||
__extension__ union { long double __l; int __i[3]; } __u = { __l: __x };
|
||||
return (__u.__i[2] & 0x8000) != 0;
|
||||
}
|
||||
# endif
|
||||
#endif
|
||||
|
||||
|
||||
/* The gcc, version 2.7 or below, has problems with all this inlining
|
||||
code. So disable it for this version of the compiler. */
|
||||
#if __GNUC_PREREQ (2, 8)
|
||||
|
||||
#if ((!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) \
|
||||
&& defined __OPTIMIZE__)
|
||||
|
||||
/* A macro to define float, double, and long double versions of various
|
||||
math functions for the ix87 FPU. FUNC is the function name (which will
|
||||
be suffixed with f and l for the float and long double version,
|
||||
respectively). OP is the name of the FPU operation.
|
||||
We define two sets of macros. The set with the additional NP
|
||||
doesn't add a prototype declaration. */
|
||||
|
||||
#if defined __USE_MISC || defined __USE_ISOC99
|
||||
# define __inline_mathop(func, op) \
|
||||
__inline_mathop_ (double, func, op) \
|
||||
__inline_mathop_ (float, __CONCAT(func,f), op) \
|
||||
__inline_mathop_ (long double, __CONCAT(func,l), op)
|
||||
# define __inline_mathopNP(func, op) \
|
||||
__inline_mathopNP_ (double, func, op) \
|
||||
__inline_mathopNP_ (float, __CONCAT(func,f), op) \
|
||||
__inline_mathopNP_ (long double, __CONCAT(func,l), op)
|
||||
#else
|
||||
# define __inline_mathop(func, op) \
|
||||
__inline_mathop_ (double, func, op)
|
||||
# define __inline_mathopNP(func, op) \
|
||||
__inline_mathopNP_ (double, func, op)
|
||||
#endif
|
||||
|
||||
#define __inline_mathop_(float_type, func, op) \
|
||||
__inline_mathop_decl_ (float_type, func, op, "0" (__x))
|
||||
#define __inline_mathopNP_(float_type, func, op) \
|
||||
__inline_mathop_declNP_ (float_type, func, op, "0" (__x))
|
||||
|
||||
|
||||
#if defined __USE_MISC || defined __USE_ISOC99
|
||||
# define __inline_mathop_decl(func, op, params...) \
|
||||
__inline_mathop_decl_ (double, func, op, params) \
|
||||
__inline_mathop_decl_ (float, __CONCAT(func,f), op, params) \
|
||||
__inline_mathop_decl_ (long double, __CONCAT(func,l), op, params)
|
||||
# define __inline_mathop_declNP(func, op, params...) \
|
||||
__inline_mathop_declNP_ (double, func, op, params) \
|
||||
__inline_mathop_declNP_ (float, __CONCAT(func,f), op, params) \
|
||||
__inline_mathop_declNP_ (long double, __CONCAT(func,l), op, params)
|
||||
#else
|
||||
# define __inline_mathop_decl(func, op, params...) \
|
||||
__inline_mathop_decl_ (double, func, op, params)
|
||||
# define __inline_mathop_declNP(func, op, params...) \
|
||||
__inline_mathop_declNP_ (double, func, op, params)
|
||||
#endif
|
||||
|
||||
#define __inline_mathop_decl_(float_type, func, op, params...) \
|
||||
__MATH_INLINE float_type func (float_type) __THROW; \
|
||||
__inline_mathop_declNP_ (float_type, func, op, params)
|
||||
|
||||
#define __inline_mathop_declNP_(float_type, func, op, params...) \
|
||||
__MATH_INLINE float_type func (float_type __x) __THROW \
|
||||
{ \
|
||||
register float_type __result; \
|
||||
__asm __volatile__ (op : "=t" (__result) : params); \
|
||||
return __result; \
|
||||
}
|
||||
|
||||
|
||||
#if defined __USE_MISC || defined __USE_ISOC99
|
||||
# define __inline_mathcode(func, arg, code) \
|
||||
__inline_mathcode_ (double, func, arg, code) \
|
||||
__inline_mathcode_ (float, __CONCAT(func,f), arg, code) \
|
||||
__inline_mathcode_ (long double, __CONCAT(func,l), arg, code)
|
||||
# define __inline_mathcodeNP(func, arg, code) \
|
||||
__inline_mathcodeNP_ (double, func, arg, code) \
|
||||
__inline_mathcodeNP_ (float, __CONCAT(func,f), arg, code) \
|
||||
__inline_mathcodeNP_ (long double, __CONCAT(func,l), arg, code)
|
||||
# define __inline_mathcode2(func, arg1, arg2, code) \
|
||||
__inline_mathcode2_ (double, func, arg1, arg2, code) \
|
||||
__inline_mathcode2_ (float, __CONCAT(func,f), arg1, arg2, code) \
|
||||
__inline_mathcode2_ (long double, __CONCAT(func,l), arg1, arg2, code)
|
||||
# define __inline_mathcodeNP2(func, arg1, arg2, code) \
|
||||
__inline_mathcodeNP2_ (double, func, arg1, arg2, code) \
|
||||
__inline_mathcodeNP2_ (float, __CONCAT(func,f), arg1, arg2, code) \
|
||||
__inline_mathcodeNP2_ (long double, __CONCAT(func,l), arg1, arg2, code)
|
||||
# define __inline_mathcode3(func, arg1, arg2, arg3, code) \
|
||||
__inline_mathcode3_ (double, func, arg1, arg2, arg3, code) \
|
||||
__inline_mathcode3_ (float, __CONCAT(func,f), arg1, arg2, arg3, code) \
|
||||
__inline_mathcode3_ (long double, __CONCAT(func,l), arg1, arg2, arg3, code)
|
||||
# define __inline_mathcodeNP3(func, arg1, arg2, arg3, code) \
|
||||
__inline_mathcodeNP3_ (double, func, arg1, arg2, arg3, code) \
|
||||
__inline_mathcodeNP3_ (float, __CONCAT(func,f), arg1, arg2, arg3, code) \
|
||||
__inline_mathcodeNP3_ (long double, __CONCAT(func,l), arg1, arg2, arg3, code)
|
||||
#else
|
||||
# define __inline_mathcode(func, arg, code) \
|
||||
__inline_mathcode_ (double, func, (arg), code)
|
||||
# define __inline_mathcodeNP(func, arg, code) \
|
||||
__inline_mathcodeNP_ (double, func, (arg), code)
|
||||
# define __inline_mathcode2(func, arg1, arg2, code) \
|
||||
__inline_mathcode2_ (double, func, arg1, arg2, code)
|
||||
# define __inline_mathcodeNP2(func, arg1, arg2, code) \
|
||||
__inline_mathcodeNP2_ (double, func, arg1, arg2, code)
|
||||
# define __inline_mathcode3(func, arg1, arg2, arg3, code) \
|
||||
__inline_mathcode3_ (double, func, arg1, arg2, arg3, code)
|
||||
# define __inline_mathcodeNP3(func, arg1, arg2, arg3, code) \
|
||||
__inline_mathcodeNP3_ (double, func, arg1, arg2, arg3, code)
|
||||
#endif
|
||||
|
||||
#define __inline_mathcode_(float_type, func, arg, code) \
|
||||
__MATH_INLINE float_type func (float_type) __THROW; \
|
||||
__inline_mathcodeNP_(float_type, func, arg, code)
|
||||
|
||||
#define __inline_mathcodeNP_(float_type, func, arg, code) \
|
||||
__MATH_INLINE float_type func (float_type arg) __THROW \
|
||||
{ \
|
||||
code; \
|
||||
}
|
||||
|
||||
|
||||
#define __inline_mathcode2_(float_type, func, arg1, arg2, code) \
|
||||
__MATH_INLINE float_type func (float_type, float_type) __THROW; \
|
||||
__inline_mathcodeNP2_ (float_type, func, arg1, arg2, code)
|
||||
|
||||
#define __inline_mathcodeNP2_(float_type, func, arg1, arg2, code) \
|
||||
__MATH_INLINE float_type func (float_type arg1, float_type arg2) __THROW \
|
||||
{ \
|
||||
code; \
|
||||
}
|
||||
|
||||
#define __inline_mathcode3_(float_type, func, arg1, arg2, arg3, code) \
|
||||
__MATH_INLINE float_type func (float_type, float_type, float_type) __THROW; \
|
||||
__inline_mathcodeNP3_(float_type, func, arg1, arg2, arg3, code)
|
||||
|
||||
#define __inline_mathcodeNP3_(float_type, func, arg1, arg2, arg3, code) \
|
||||
__MATH_INLINE float_type func (float_type arg1, float_type arg2, \
|
||||
float_type arg3) __THROW \
|
||||
{ \
|
||||
code; \
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
#if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
|
||||
/* Miscellaneous functions */
|
||||
|
||||
__inline_mathcode (__sgn, __x, \
|
||||
return __x == 0.0 ? 0.0 : (__x > 0.0 ? 1.0 : -1.0))
|
||||
|
||||
/* __FAST_MATH__ is defined by gcc -ffast-math. */
|
||||
#ifdef __FAST_MATH__
|
||||
__inline_mathcode (__pow2, __x, \
|
||||
register long double __value; \
|
||||
register long double __exponent; \
|
||||
__extension__ long long int __p = (long long int) __x; \
|
||||
if (__x == (long double) __p) \
|
||||
{ \
|
||||
__asm __volatile__ \
|
||||
("fscale" \
|
||||
: "=t" (__value) : "0" (1.0), "u" (__x)); \
|
||||
return __value; \
|
||||
} \
|
||||
__asm __volatile__ \
|
||||
("fld %%st(0)\n\t" \
|
||||
"frndint # int(x)\n\t" \
|
||||
"fxch\n\t" \
|
||||
"fsub %%st(1) # fract(x)\n\t" \
|
||||
"f2xm1 # 2^(fract(x)) - 1\n\t" \
|
||||
: "=t" (__value), "=u" (__exponent) : "0" (__x)); \
|
||||
__value += 1.0; \
|
||||
__asm __volatile__ \
|
||||
("fscale" \
|
||||
: "=t" (__value) : "0" (__value), "u" (__exponent)); \
|
||||
return __value)
|
||||
|
||||
# ifdef __USE_GNU
|
||||
# define __sincos_code \
|
||||
register long double __cosr; \
|
||||
register long double __sinr; \
|
||||
__asm __volatile__ \
|
||||
("fsincos\n\t" \
|
||||
"fnstsw %%ax\n\t" \
|
||||
"testl $0x400, %%eax\n\t" \
|
||||
"jz 1f\n\t" \
|
||||
"fldpi\n\t" \
|
||||
"fadd %%st(0)\n\t" \
|
||||
"fxch %%st(1)\n\t" \
|
||||
"2: fprem1\n\t" \
|
||||
"fnstsw %%ax\n\t" \
|
||||
"testl $0x400, %%eax\n\t" \
|
||||
"jnz 2b\n\t" \
|
||||
"fstp %%st(1)\n\t" \
|
||||
"fsincos\n\t" \
|
||||
"1:" \
|
||||
: "=t" (__cosr), "=u" (__sinr) : "0" (__x)); \
|
||||
*__sinx = __sinr; \
|
||||
*__cosx = __cosr
|
||||
|
||||
__MATH_INLINE void
|
||||
__sincos (double __x, double *__sinx, double *__cosx) __THROW
|
||||
{
|
||||
__sincos_code;
|
||||
}
|
||||
|
||||
__MATH_INLINE void
|
||||
__sincosf (float __x, float *__sinx, float *__cosx) __THROW
|
||||
{
|
||||
__sincos_code;
|
||||
}
|
||||
|
||||
__MATH_INLINE void
|
||||
__sincosl (long double __x, long double *__sinx, long double *__cosx) __THROW
|
||||
{
|
||||
__sincos_code;
|
||||
}
|
||||
# endif
|
||||
|
||||
|
||||
/* Optimized inline implementation, sometimes with reduced precision
|
||||
and/or argument range. */
|
||||
|
||||
# define __expm1_code \
|
||||
register long double __value; \
|
||||
register long double __exponent; \
|
||||
register long double __temp; \
|
||||
__asm __volatile__ \
|
||||
("fldl2e # e^x - 1 = 2^(x * log2(e)) - 1\n\t" \
|
||||
"fmul %%st(1) # x * log2(e)\n\t" \
|
||||
"fst %%st(1)\n\t" \
|
||||
"frndint # int(x * log2(e))\n\t" \
|
||||
"fxch\n\t" \
|
||||
"fsub %%st(1) # fract(x * log2(e))\n\t" \
|
||||
"f2xm1 # 2^(fract(x * log2(e))) - 1\n\t" \
|
||||
"fscale # 2^(x * log2(e)) - 2^(int(x * log2(e)))\n\t" \
|
||||
: "=t" (__value), "=u" (__exponent) : "0" (__x)); \
|
||||
__asm __volatile__ \
|
||||
("fscale # 2^int(x * log2(e))\n\t" \
|
||||
: "=t" (__temp) : "0" (1.0), "u" (__exponent)); \
|
||||
__temp -= 1.0; \
|
||||
return __temp + __value ?: __x
|
||||
__inline_mathcodeNP_ (long double, __expm1l, __x, __expm1_code)
|
||||
|
||||
|
||||
# define __exp_code \
|
||||
register long double __value; \
|
||||
register long double __exponent; \
|
||||
__asm __volatile__ \
|
||||
("fldl2e # e^x = 2^(x * log2(e))\n\t" \
|
||||
"fmul %%st(1) # x * log2(e)\n\t" \
|
||||
"fst %%st(1)\n\t" \
|
||||
"frndint # int(x * log2(e))\n\t" \
|
||||
"fxch\n\t" \
|
||||
"fsub %%st(1) # fract(x * log2(e))\n\t" \
|
||||
"f2xm1 # 2^(fract(x * log2(e))) - 1\n\t" \
|
||||
: "=t" (__value), "=u" (__exponent) : "0" (__x)); \
|
||||
__value += 1.0; \
|
||||
__asm __volatile__ \
|
||||
("fscale" \
|
||||
: "=t" (__value) : "0" (__value), "u" (__exponent)); \
|
||||
return __value
|
||||
__inline_mathcodeNP (exp, __x, __exp_code)
|
||||
__inline_mathcodeNP_ (long double, __expl, __x, __exp_code)
|
||||
|
||||
|
||||
__inline_mathcodeNP (tan, __x, \
|
||||
register long double __value; \
|
||||
register long double __value2 __attribute__ ((__unused__)); \
|
||||
__asm __volatile__ \
|
||||
("fptan" \
|
||||
: "=t" (__value2), "=u" (__value) : "0" (__x)); \
|
||||
return __value)
|
||||
#endif /* __FAST_MATH__ */
|
||||
|
||||
|
||||
#define __atan2_code \
|
||||
register long double __value; \
|
||||
__asm __volatile__ \
|
||||
("fpatan" \
|
||||
: "=t" (__value) : "0" (__x), "u" (__y) : "st(1)"); \
|
||||
return __value
|
||||
__inline_mathcodeNP2 (atan2, __y, __x, __atan2_code)
|
||||
__inline_mathcodeNP2_ (long double, __atan2l, __y, __x, __atan2_code)
|
||||
|
||||
|
||||
__inline_mathcodeNP2 (fmod, __x, __y, \
|
||||
register long double __value; \
|
||||
__asm __volatile__ \
|
||||
("1: fprem\n\t" \
|
||||
"fnstsw %%ax\n\t" \
|
||||
"sahf\n\t" \
|
||||
"jp 1b" \
|
||||
: "=t" (__value) : "0" (__x), "u" (__y) : "ax", "cc"); \
|
||||
return __value)
|
||||
|
||||
|
||||
__inline_mathopNP (sqrt, "fsqrt")
|
||||
__inline_mathopNP_ (long double, __sqrtl, "fsqrt")
|
||||
|
||||
#if __GNUC_PREREQ (2, 8)
|
||||
__inline_mathcodeNP_ (double, fabs, __x, return __builtin_fabs (__x))
|
||||
__inline_mathcodeNP_ (float, fabsf, __x, return __builtin_fabsf (__x))
|
||||
__inline_mathcodeNP_ (long double, fabsl, __x, return __builtin_fabsl (__x))
|
||||
__inline_mathcodeNP_ (long double, __fabsl, __x, return __builtin_fabsl (__x))
|
||||
#else
|
||||
__inline_mathop (fabs, "fabs")
|
||||
__inline_mathop_ (long double, __fabsl, "fabs")
|
||||
#endif
|
||||
|
||||
#ifdef __FAST_MATH__
|
||||
/* The argument range of this inline version is reduced. */
|
||||
__inline_mathopNP (sin, "fsin")
|
||||
/* The argument range of this inline version is reduced. */
|
||||
__inline_mathopNP (cos, "fcos")
|
||||
|
||||
__inline_mathop_declNP (log, "fldln2; fxch; fyl2x", "0" (__x) : "st(1)")
|
||||
__inline_mathop_declNP (log10, "fldlg2; fxch; fyl2x", "0" (__x) : "st(1)")
|
||||
|
||||
__inline_mathcodeNP (asin, __x, return __atan2l (__x, __sqrtl (1.0 - __x * __x)))
|
||||
__inline_mathcodeNP (acos, __x, return __atan2l (__sqrtl (1.0 - __x * __x), __x))
|
||||
#endif /* __FAST_MATH__ */
|
||||
|
||||
__inline_mathop_declNP (atan, "fld1; fpatan", "0" (__x) : "st(1)")
|
||||
|
||||
__inline_mathcode_ (long double, __sgn1l, __x, \
|
||||
__extension__ union { long double __xld; unsigned int __xi[3]; } __n = \
|
||||
{ __xld: __x }; \
|
||||
__n.__xi[2] = (__n.__xi[2] & 0x8000) | 0x3fff; \
|
||||
__n.__xi[1] = 0x80000000; \
|
||||
__n.__xi[0] = 0; \
|
||||
return __n.__xld)
|
||||
|
||||
|
||||
#ifdef __FAST_MATH__
|
||||
/* The argument range of the inline version of sinhl is slightly reduced. */
|
||||
__inline_mathcodeNP (sinh, __x, \
|
||||
register long double __exm1 = __expm1l (__fabsl (__x)); \
|
||||
return 0.5 * (__exm1 / (__exm1 + 1.0) + __exm1) * __sgn1l (__x))
|
||||
|
||||
__inline_mathcodeNP (cosh, __x, \
|
||||
register long double __ex = __expl (__x); \
|
||||
return 0.5 * (__ex + 1.0 / __ex))
|
||||
|
||||
__inline_mathcodeNP (tanh, __x, \
|
||||
register long double __exm1 = __expm1l (-__fabsl (__x + __x)); \
|
||||
return __exm1 / (__exm1 + 2.0) * __sgn1l (-__x))
|
||||
#endif
|
||||
|
||||
__inline_mathcodeNP (floor, __x, \
|
||||
register long double __value; \
|
||||
__volatile unsigned short int __cw; \
|
||||
__volatile unsigned short int __cwtmp; \
|
||||
__asm __volatile ("fnstcw %0" : "=m" (__cw)); \
|
||||
__cwtmp = (__cw & 0xf3ff) | 0x0400; /* rounding down */ \
|
||||
__asm __volatile ("fldcw %0" : : "m" (__cwtmp)); \
|
||||
__asm __volatile ("frndint" : "=t" (__value) : "0" (__x)); \
|
||||
__asm __volatile ("fldcw %0" : : "m" (__cw)); \
|
||||
return __value)
|
||||
|
||||
__inline_mathcodeNP (ceil, __x, \
|
||||
register long double __value; \
|
||||
__volatile unsigned short int __cw; \
|
||||
__volatile unsigned short int __cwtmp; \
|
||||
__asm __volatile ("fnstcw %0" : "=m" (__cw)); \
|
||||
__cwtmp = (__cw & 0xf3ff) | 0x0800; /* rounding up */ \
|
||||
__asm __volatile ("fldcw %0" : : "m" (__cwtmp)); \
|
||||
__asm __volatile ("frndint" : "=t" (__value) : "0" (__x)); \
|
||||
__asm __volatile ("fldcw %0" : : "m" (__cw)); \
|
||||
return __value)
|
||||
|
||||
#define __ldexp_code \
|
||||
register long double __value; \
|
||||
__asm __volatile__ \
|
||||
("fscale" \
|
||||
: "=t" (__value) : "0" (__x), "u" ((long double) __y)); \
|
||||
return __value
|
||||
|
||||
__MATH_INLINE double
|
||||
ldexp (double __x, int __y) __THROW
|
||||
{
|
||||
__ldexp_code;
|
||||
}
|
||||
|
||||
|
||||
/* Optimized versions for some non-standardized functions. */
|
||||
#if defined __USE_ISOC99 || defined __USE_MISC
|
||||
|
||||
# ifdef __FAST_MATH__
|
||||
__inline_mathcodeNP (expm1, __x, __expm1_code)
|
||||
# endif
|
||||
|
||||
/* We cannot rely on M_SQRT being defined. So we do it for ourself
|
||||
here. */
|
||||
# define __M_SQRT2 1.41421356237309504880L /* sqrt(2) */
|
||||
|
||||
__inline_mathcodeNP (log1p, __x, \
|
||||
register long double __value; \
|
||||
if (__fabsl (__x) >= 1.0 - 0.5 * __M_SQRT2) \
|
||||
__value = logl (1.0 + __x); \
|
||||
else \
|
||||
__asm __volatile__ \
|
||||
("fldln2\n\t" \
|
||||
"fxch\n\t" \
|
||||
"fyl2xp1" \
|
||||
: "=t" (__value) : "0" (__x) : "st(1)"); \
|
||||
return __value)
|
||||
|
||||
|
||||
/* The argument range of the inline version of asinhl is slightly reduced. */
|
||||
__inline_mathcodeNP (asinh, __x, \
|
||||
register long double __y = __fabsl (__x); \
|
||||
return (log1pl (__y * __y / (__sqrtl (__y * __y + 1.0) + 1.0) + __y) \
|
||||
* __sgn1l (__x)))
|
||||
|
||||
__inline_mathcodeNP (acosh, __x, \
|
||||
return logl (__x + __sqrtl (__x - 1.0) * __sqrtl (__x + 1.0)))
|
||||
|
||||
__inline_mathcodeNP (atanh, __x, \
|
||||
register long double __y = __fabsl (__x); \
|
||||
return -0.5 * log1pl (-(__y + __y) / (1.0 + __y)) * __sgn1l (__x))
|
||||
|
||||
/* The argument range of the inline version of hypotl is slightly reduced. */
|
||||
__inline_mathcodeNP2 (hypot, __x, __y, return __sqrtl (__x * __x + __y * __y))
|
||||
|
||||
__inline_mathcodeNP(logb, __x, \
|
||||
register long double __value; \
|
||||
register long double __junk; \
|
||||
__asm __volatile__ \
|
||||
("fxtract\n\t" \
|
||||
: "=t" (__junk), "=u" (__value) : "0" (__x)); \
|
||||
return __value)
|
||||
|
||||
#endif
|
||||
|
||||
#ifdef __USE_ISOC99
|
||||
#ifdef __FAST_MATH__
|
||||
__inline_mathop_declNP (log2, "fld1; fxch; fyl2x", "0" (__x) : "st(1)")
|
||||
#endif /* __FAST_MATH__ */
|
||||
|
||||
__MATH_INLINE float
|
||||
ldexpf (float __x, int __y) __THROW
|
||||
{
|
||||
__ldexp_code;
|
||||
}
|
||||
|
||||
__MATH_INLINE long double
|
||||
ldexpl (long double __x, int __y) __THROW
|
||||
{
|
||||
__ldexp_code;
|
||||
}
|
||||
|
||||
#ifdef __FAST_MATH__
|
||||
__inline_mathcodeNP3 (fma, __x, __y, __z, return (__x * __y) + __z)
|
||||
|
||||
__inline_mathopNP (rint, "frndint")
|
||||
#endif /* __FAST_MATH__ */
|
||||
|
||||
#define __lrint_code \
|
||||
long int __lrintres; \
|
||||
__asm__ __volatile__ \
|
||||
("fistpl %0" \
|
||||
: "=m" (__lrintres) : "t" (__x) : "st"); \
|
||||
return __lrintres
|
||||
__MATH_INLINE long int
|
||||
lrintf (float __x) __THROW
|
||||
{
|
||||
__lrint_code;
|
||||
}
|
||||
__MATH_INLINE long int
|
||||
lrint (double __x) __THROW
|
||||
{
|
||||
__lrint_code;
|
||||
}
|
||||
__MATH_INLINE long int
|
||||
lrintl (long double __x) __THROW
|
||||
{
|
||||
__lrint_code;
|
||||
}
|
||||
#undef __lrint_code
|
||||
|
||||
#define __llrint_code \
|
||||
long long int __llrintres; \
|
||||
__asm__ __volatile__ \
|
||||
("fistpll %0" \
|
||||
: "=m" (__llrintres) : "t" (__x) : "st"); \
|
||||
return __llrintres
|
||||
__MATH_INLINE long long int
|
||||
llrintf (float __x) __THROW
|
||||
{
|
||||
__llrint_code;
|
||||
}
|
||||
__MATH_INLINE long long int
|
||||
llrint (double __x) __THROW
|
||||
{
|
||||
__llrint_code;
|
||||
}
|
||||
__MATH_INLINE long long int
|
||||
llrintl (long double __x) __THROW
|
||||
{
|
||||
__llrint_code;
|
||||
}
|
||||
#undef __llrint_code
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef __USE_MISC
|
||||
|
||||
__inline_mathcodeNP2 (drem, __x, __y, \
|
||||
register double __value; \
|
||||
register int __clobbered; \
|
||||
__asm __volatile__ \
|
||||
("1: fprem1\n\t" \
|
||||
"fstsw %%ax\n\t" \
|
||||
"sahf\n\t" \
|
||||
"jp 1b" \
|
||||
: "=t" (__value), "=&a" (__clobbered) : "0" (__x), "u" (__y) : "cc"); \
|
||||
return __value)
|
||||
|
||||
|
||||
/* This function is used in the `isfinite' macro. */
|
||||
__MATH_INLINE int
|
||||
__finite (double __x) __THROW
|
||||
{
|
||||
return (__extension__
|
||||
(((((union { double __d; int __i[2]; }) {__d: __x}).__i[1]
|
||||
| 0x800fffffu) + 1) >> 31));
|
||||
}
|
||||
|
||||
/* Miscellaneous functions */
|
||||
#ifdef __FAST_MATH__
|
||||
__inline_mathcode (__coshm1, __x, \
|
||||
register long double __exm1 = __expm1l (__fabsl (__x)); \
|
||||
return 0.5 * (__exm1 / (__exm1 + 1.0)) * __exm1)
|
||||
|
||||
__inline_mathcode (__acosh1p, __x, \
|
||||
return log1pl (__x + __sqrtl (__x) * __sqrtl (__x + 2.0)))
|
||||
|
||||
#endif /* __FAST_MATH__ */
|
||||
#endif /* __USE_MISC */
|
||||
|
||||
/* Undefine some of the large macros which are not used anymore. */
|
||||
#undef __atan2_code
|
||||
#ifdef __FAST_MATH__
|
||||
# undef __expm1_code
|
||||
# undef __exp_code
|
||||
# undef __sincos_code
|
||||
#endif /* __FAST_MATH__ */
|
||||
|
||||
#endif /* __NO_MATH_INLINES */
|
||||
|
||||
|
||||
/* This code is used internally in the GNU libc. */
|
||||
#ifdef __LIBC_INTERNAL_MATH_INLINES
|
||||
__inline_mathop (__ieee754_sqrt, "fsqrt")
|
||||
__inline_mathcode2 (__ieee754_atan2, __y, __x,
|
||||
register long double __value;
|
||||
__asm __volatile__ ("fpatan\n\t"
|
||||
: "=t" (__value)
|
||||
: "0" (__x), "u" (__y) : "st(1)");
|
||||
return __value;)
|
||||
#endif
|
||||
|
||||
#endif /* __GNUC__ */
|
||||
@@ -0,0 +1,48 @@
|
||||
/* `NAN' constant for IEEE 754 machines.
|
||||
Copyright (C) 1992, 1996, 1997, 1999 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. */
|
||||
|
||||
#ifndef _MATH_H
|
||||
# error "Never use <bits/nan.h> directly; include <math.h> instead."
|
||||
#endif
|
||||
|
||||
|
||||
/* IEEE Not A Number. */
|
||||
|
||||
#ifdef __GNUC__
|
||||
|
||||
# define NAN \
|
||||
(__extension__ \
|
||||
((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; }) \
|
||||
{ __l: 0x7fc00000UL }).__d)
|
||||
|
||||
#else
|
||||
|
||||
# include <endian.h>
|
||||
|
||||
# if __BYTE_ORDER == __BIG_ENDIAN
|
||||
# define __nan_bytes { 0x7f, 0xc0, 0, 0 }
|
||||
# endif
|
||||
# if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||
# define __nan_bytes { 0, 0, 0xc0, 0x7f }
|
||||
# endif
|
||||
|
||||
static union { unsigned char __c[4]; float __d; } __nan_union = { __nan_bytes };
|
||||
# define NAN (__nan_union.__d)
|
||||
|
||||
#endif /* GCC. */
|
||||
@@ -0,0 +1,144 @@
|
||||
/* Bounded-pointer definitions for x86 assembler.
|
||||
Copyright (C) 2000 Free Software Foundation, Inc.
|
||||
Contributed by Greg McGary <[email protected]>
|
||||
This file is part of the GNU C Library. Its master source is NOT part of
|
||||
the C library, however. The master source lives in the GNU MP 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. */
|
||||
|
||||
#ifndef _bp_asm_h_
|
||||
# define _bp_asm_h_ 1
|
||||
|
||||
# if __ASSEMBLER__
|
||||
|
||||
# if __BOUNDED_POINTERS__
|
||||
|
||||
/* Bounded pointers occupy three words. */
|
||||
# define PTR_SIZE 12
|
||||
/* Bounded pointer return values are passed back through a hidden
|
||||
argument that points to caller-allocate space. The hidden arg
|
||||
occupies one word on the stack. */
|
||||
# define RTN_SIZE 4
|
||||
/* Although the caller pushes the hidden arg, the callee is
|
||||
responsible for popping it. */
|
||||
# define RET_PTR ret $RTN_SIZE
|
||||
/* Maintain frame pointer chain in leaf assembler functions for the benefit
|
||||
of debugging stack traces when bounds violations occur. */
|
||||
# define ENTER pushl %ebp; movl %esp, %ebp
|
||||
# define LEAVE movl %ebp, %esp; popl %ebp
|
||||
/* Stack space overhead of procedure-call linkage: return address and
|
||||
frame pointer. */
|
||||
# define LINKAGE 8
|
||||
/* Stack offset of return address after calling ENTER. */
|
||||
# define PCOFF 4
|
||||
|
||||
/* Int 5 is the "bound range" exception also raised by the "bound"
|
||||
instruction. */
|
||||
# define BOUNDS_VIOLATED int $5
|
||||
|
||||
# define CHECK_BOUNDS_LOW(VAL_REG, BP_MEM) \
|
||||
cmpl 4+BP_MEM, VAL_REG; \
|
||||
jae 0f; /* continue if value >= low */ \
|
||||
BOUNDS_VIOLATED; \
|
||||
0:
|
||||
|
||||
# define CHECK_BOUNDS_HIGH(VAL_REG, BP_MEM, Jcc) \
|
||||
cmpl 8+BP_MEM, VAL_REG; \
|
||||
Jcc 0f; /* continue if value < high */ \
|
||||
BOUNDS_VIOLATED; \
|
||||
0:
|
||||
|
||||
# define CHECK_BOUNDS_BOTH(VAL_REG, BP_MEM) \
|
||||
cmpl 4+BP_MEM, VAL_REG; \
|
||||
jb 1f; /* die if value < low */ \
|
||||
cmpl 8+BP_MEM, VAL_REG; \
|
||||
jb 0f; /* continue if value < high */ \
|
||||
1: BOUNDS_VIOLATED; \
|
||||
0:
|
||||
|
||||
# define CHECK_BOUNDS_BOTH_WIDE(VAL_REG, BP_MEM, LENGTH) \
|
||||
CHECK_BOUNDS_LOW(VAL_REG, BP_MEM); \
|
||||
addl LENGTH, VAL_REG; \
|
||||
cmpl 8+BP_MEM, VAL_REG; \
|
||||
jbe 0f; /* continue if value <= high */ \
|
||||
BOUNDS_VIOLATED; \
|
||||
0: subl LENGTH, VAL_REG /* restore value */
|
||||
|
||||
/* Take bounds from BP_MEM and affix them to the pointer
|
||||
value in %eax, stuffing all into memory at RTN(%esp).
|
||||
Use %edx as a scratch register. */
|
||||
|
||||
# define RETURN_BOUNDED_POINTER(BP_MEM) \
|
||||
movl RTN(%esp), %edx; \
|
||||
movl %eax, 0(%edx); \
|
||||
movl 4+BP_MEM, %eax; \
|
||||
movl %eax, 4(%edx); \
|
||||
movl 8+BP_MEM, %eax; \
|
||||
movl %eax, 8(%edx)
|
||||
|
||||
# define RETURN_NULL_BOUNDED_POINTER \
|
||||
movl RTN(%esp), %edx; \
|
||||
movl %eax, 0(%edx); \
|
||||
movl %eax, 4(%edx); \
|
||||
movl %eax, 8(%edx)
|
||||
|
||||
/* The caller of __errno_location is responsible for allocating space
|
||||
for the three-word BP return-value and passing pushing its address
|
||||
as an implicit first argument. */
|
||||
# define PUSH_ERRNO_LOCATION_RETURN \
|
||||
subl $8, %esp; \
|
||||
subl $4, %esp; \
|
||||
pushl %esp
|
||||
|
||||
/* __errno_location is responsible for popping the implicit first
|
||||
argument, but we must pop the space for the BP itself. We also
|
||||
dereference the return value in order to dig out the pointer value. */
|
||||
# define POP_ERRNO_LOCATION_RETURN \
|
||||
popl %eax; \
|
||||
addl $8, %esp
|
||||
|
||||
# else /* !__BOUNDED_POINTERS__ */
|
||||
|
||||
/* Unbounded pointers occupy one word. */
|
||||
# define PTR_SIZE 4
|
||||
/* Unbounded pointer return values are passed back in the register %eax. */
|
||||
# define RTN_SIZE 0
|
||||
/* Use simple return instruction for unbounded pointer values. */
|
||||
# define RET_PTR ret
|
||||
/* Don't maintain frame pointer chain for leaf assembler functions. */
|
||||
# define ENTER
|
||||
# define LEAVE
|
||||
/* Stack space overhead of procedure-call linkage: return address only. */
|
||||
# define LINKAGE 4
|
||||
/* Stack offset of return address after calling ENTER. */
|
||||
# define PCOFF 0
|
||||
|
||||
# define CHECK_BOUNDS_LOW(VAL_REG, BP_MEM)
|
||||
# define CHECK_BOUNDS_HIGH(VAL_REG, BP_MEM, Jcc)
|
||||
# define CHECK_BOUNDS_BOTH(VAL_REG, BP_MEM)
|
||||
# define CHECK_BOUNDS_BOTH_WIDE(VAL_REG, BP_MEM, LENGTH)
|
||||
# define RETURN_BOUNDED_POINTER(BP_MEM)
|
||||
|
||||
# define RETURN_NULL_BOUNDED_POINTER
|
||||
|
||||
# define PUSH_ERRNO_LOCATION_RETURN
|
||||
# define POP_ERRNO_LOCATION_RETURN
|
||||
|
||||
# endif /* !__BOUNDED_POINTERS__ */
|
||||
|
||||
# endif /* __ASSEMBLER__ */
|
||||
|
||||
#endif /* _bp_asm_h_ */
|
||||
@@ -0,0 +1,128 @@
|
||||
/* Assembler macros for i386.
|
||||
Copyright (C) 1991, 92, 93, 95, 96, 98 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. */
|
||||
|
||||
#include_next <sysdep.h>
|
||||
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* Syntactic details of assembler. */
|
||||
|
||||
#ifdef HAVE_ELF
|
||||
|
||||
/* ELF uses byte-counts for .align, most others use log2 of count of bytes. */
|
||||
#define ALIGNARG(log2) 1<<log2
|
||||
/* For ELF we need the `.type' directive to make shared libs work right. */
|
||||
#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg;
|
||||
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name;
|
||||
|
||||
/* In ELF C symbols are asm symbols. */
|
||||
#undef NO_UNDERSCORES
|
||||
#define NO_UNDERSCORES
|
||||
|
||||
#else
|
||||
|
||||
#define ALIGNARG(log2) log2
|
||||
#define ASM_TYPE_DIRECTIVE(name,type) /* Nothing is specified. */
|
||||
#define ASM_SIZE_DIRECTIVE(name) /* Nothing is specified. */
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
/* Define an entry point visible from C.
|
||||
|
||||
There is currently a bug in gdb which prevents us from specifying
|
||||
incomplete stabs information. Fake some entries here which specify
|
||||
the current source file. */
|
||||
#define ENTRY(name) \
|
||||
STABS_CURRENT_FILE1("") \
|
||||
STABS_CURRENT_FILE(name) \
|
||||
ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \
|
||||
ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \
|
||||
.align ALIGNARG(4); \
|
||||
STABS_FUN(name) \
|
||||
C_LABEL(name) \
|
||||
CALL_MCOUNT
|
||||
|
||||
#undef END
|
||||
#define END(name) \
|
||||
ASM_SIZE_DIRECTIVE(name) \
|
||||
STABS_FUN_END(name)
|
||||
|
||||
/* Remove the following two lines once the gdb bug is fixed. */
|
||||
#define STABS_CURRENT_FILE(name) \
|
||||
STABS_CURRENT_FILE1 (#name)
|
||||
#define STABS_CURRENT_FILE1(name) \
|
||||
1: .stabs name,100,0,0,1b;
|
||||
/* Emit stabs definition lines. We use F(0,1) and define t(0,1) as `int',
|
||||
the same way gcc does it. */
|
||||
#define STABS_FUN(name) STABS_FUN2(name, name##:F(0,1))
|
||||
#define STABS_FUN2(name, namestr) \
|
||||
.stabs "int:t(0,1)=r(0,1);-2147483648;2147483647;",128,0,0,0; \
|
||||
.stabs #namestr,36,0,0,name;
|
||||
#define STABS_FUN_END(name) \
|
||||
1: .stabs "",36,0,0,1b-name;
|
||||
|
||||
/* If compiled for profiling, call `mcount' at the start of each function. */
|
||||
#ifdef PROF
|
||||
/* The mcount code relies on a normal frame pointer being on the stack
|
||||
to locate our caller, so push one just for its benefit. */
|
||||
#define CALL_MCOUNT \
|
||||
pushl %ebp; movl %esp, %ebp; call JUMPTARGET(mcount); popl %ebp;
|
||||
#else
|
||||
#define CALL_MCOUNT /* Do nothing. */
|
||||
#endif
|
||||
|
||||
#ifdef NO_UNDERSCORES
|
||||
/* Since C identifiers are not normally prefixed with an underscore
|
||||
on this system, the asm identifier `syscall_error' intrudes on the
|
||||
C name space. Make sure we use an innocuous name. */
|
||||
#define syscall_error __syscall_error
|
||||
#define mcount _mcount
|
||||
#endif
|
||||
|
||||
#define PSEUDO(name, syscall_name, args) \
|
||||
lose: SYSCALL_PIC_SETUP \
|
||||
jmp JUMPTARGET(syscall_error) \
|
||||
.globl syscall_error; \
|
||||
ENTRY (name) \
|
||||
DO_CALL (syscall_name, args); \
|
||||
jb lose
|
||||
|
||||
#undef PSEUDO_END
|
||||
#define PSEUDO_END(name) \
|
||||
END (name)
|
||||
|
||||
#ifdef PIC
|
||||
#define JUMPTARGET(name) name##@PLT
|
||||
#define SYSCALL_PIC_SETUP \
|
||||
pushl %ebx; \
|
||||
call 0f; \
|
||||
0: popl %ebx; \
|
||||
addl $_GLOBAL_OFFSET_TABLE+[.-0b], %ebx;
|
||||
#else
|
||||
#define JUMPTARGET(name) name
|
||||
#define SYSCALL_PIC_SETUP /* Nothing. */
|
||||
#endif
|
||||
|
||||
/* Local label name for asm code. */
|
||||
#ifndef L
|
||||
#define L(name) name
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLER__ */
|
||||
Reference in New Issue
Block a user