From 0814bdad52c764ec4f3c010e78d7cdb6418e64e0 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Wed, 23 Aug 2006 19:27:42 +0000
Subject: sync with upstream via psm

---
 libc/sysdeps/linux/arm/bits/huge_val.h | 82 +++++++++++-----------------------
 1 file changed, 25 insertions(+), 57 deletions(-)

(limited to 'libc/sysdeps/linux/arm/bits/huge_val.h')

diff --git a/libc/sysdeps/linux/arm/bits/huge_val.h b/libc/sysdeps/linux/arm/bits/huge_val.h
index 625cdc5c3..a215f3c0b 100644
--- a/libc/sysdeps/linux/arm/bits/huge_val.h
+++ b/libc/sysdeps/linux/arm/bits/huge_val.h
@@ -1,7 +1,8 @@
-/* `HUGE_VAL' constants for IEEE 754 machines (where it is infinity).
+/* `HUGE_VAL' constant for IEEE 754 machines (where it is infinity).
    Used by <stdlib.h> and <math.h> functions for overflow.
    ARM version.
-   Copyright (C) 1992, 95, 96, 97, 98, 99, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1992, 95, 96, 97, 98, 99, 2000, 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
@@ -23,24 +24,25 @@
 # 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
+#if __GNUC_PREREQ(3,3)
+# define HUGE_VAL  (__builtin_huge_val())
+#elif __GNUC_PREREQ(2,96)
+# define HUGE_VAL (__extension__ 0x1.0p2047)
+#elif defined __GNUC__
 
-#  define HUGE_VAL \
+#ifndef __CONFIG_ARM_EABI__
+# define HUGE_VAL \
   (__extension__							      \
    ((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; })   \
     { __l: 0x000000007ff00000ULL }).__d)
-
-# endif
+#else
+# define HUGE_VAL \
+  (__extension__							      \
+   ((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; })   \
+    { __l: 0x7ff0000000000000ULL }).__d)
+#endif
 
 #else /* not GCC */
 
@@ -48,57 +50,23 @@
 
 typedef union { unsigned char __c[8]; double __d; } __huge_val_t;
 
+#ifndef __CONFIG_ARM_EABI__
 # 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
+#else
+# if __BYTE_ORDER == __BIG_ENDIAN
+#  define __HUGE_VAL_bytes	{ 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 }
+# endif
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#  define __HUGE_VAL_bytes	{ 0, 0, 0, 0, 0, 0, 0xf0, 0x7f }
+# endif
+#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.  */
-- 
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