diff options
Diffstat (limited to 'newlib/libc/include/machine/ieeefp.h')
| -rw-r--r-- | newlib/libc/include/machine/ieeefp.h | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/newlib/libc/include/machine/ieeefp.h b/newlib/libc/include/machine/ieeefp.h index 37afbfe..3672103 100644 --- a/newlib/libc/include/machine/ieeefp.h +++ b/newlib/libc/include/machine/ieeefp.h @@ -51,11 +51,25 @@ */ #if (defined(__arm__) || defined(__thumb__)) && !defined(__MAVERICK__) -/* ARM always has big-endian words. Within those words the byte ordering - will be big or little endian depending upon the target. */ -#define __IEEE_BIG_ENDIAN -#ifdef __ARMEL__ -#define __IEEE_BYTES_LITTLE_ENDIAN +/* ARM traditionally used big-endian words; and within those words the + byte ordering was big or little endian depending upon the target. + Modern floating-point formats are naturally ordered; in this case + __VFP_FP__ will be defined, even if soft-float. + + FIXME: long double support is broken for the ARM when __ARMEL__ + is specified. New long double formats need to be added + to the long double conversion routines. */ +#ifdef __VFP_FP__ +# ifdef __ARMEL__ +# define __IEEE_LITTLE_ENDIAN +# else +# define __IEEE_BIG_ENDIAN +# endif +#else +# define __IEEE_BIG_ENDIAN +# ifdef __ARMEL__ +# define __IEEE_BYTES_LITTLE_ENDIAN +# endif #endif #endif |