[PATCH] float.h for sparc*-linux BI_ARCH configurations
Jakub Jelinek
jj@sunsite.ms.mff.cuni.cz
Fri Jun 11 00:50:00 GMT 1999
Hi!
As sparc-*-linux uses long double == double 64bit IEEE, while
sparc64-*-linux uses 128bit IEEE long double and both targets are supported
by the same compiler, I had to create a separate float-sparc.h for this
case, which uses C preprocessor macros to either define all LDBL* constants
to DBL*, or define the same LDBL* constants as float-i128.h does. Otherwise
either sparc32 or sparc64 compiles will be broken in the BI_ARCH compiler.
Fri Jun 11 09:40:51 1999 Jakub Jelinek <jj@ultra.linux.cz>
* config/float-sparc.h: New file.
* configure.in: Use float_format=sparc for sparc-*-linux-gnulibc1,
sparc-*-linux-gnu and sparc64-*-linux*.
--- gcc/config/float-sparc.h.jj Fri Jun 11 09:34:30 1999
+++ gcc/config/float-sparc.h Fri Jun 11 09:28:16 1999
@@ -0,0 +1,122 @@
+/* float.h for target with IEEE 32, 64 and 128 bit SPARC floating point formats
+ (on sparc-linux long double is 64 bit, while on sparc64-linux 128 bit) */
+#ifndef _FLOAT_H_
+#define _FLOAT_H_
+/* Produced by enquire version 4.3, CWI, Amsterdam */
+
+ /* Radix of exponent representation */
+#undef FLT_RADIX
+#define FLT_RADIX 2
+ /* Number of base-FLT_RADIX digits in the significand of a float */
+#undef FLT_MANT_DIG
+#define FLT_MANT_DIG 24
+ /* Number of decimal digits of precision in a float */
+#undef FLT_DIG
+#define FLT_DIG 6
+ /* Addition rounds to 0: zero, 1: nearest, 2: +inf, 3: -inf, -1: unknown */
+#undef FLT_ROUNDS
+#define FLT_ROUNDS 1
+ /* Difference between 1.0 and the minimum float greater than 1.0 */
+#undef FLT_EPSILON
+#define FLT_EPSILON 1.19209290e-07F
+ /* Minimum int x such that FLT_RADIX**(x-1) is a normalised float */
+#undef FLT_MIN_EXP
+#define FLT_MIN_EXP (-125)
+ /* Minimum normalised float */
+#undef FLT_MIN
+#define FLT_MIN 1.17549435e-38F
+ /* Minimum int x such that 10**x is a normalised float */
+#undef FLT_MIN_10_EXP
+#define FLT_MIN_10_EXP (-37)
+ /* Maximum int x such that FLT_RADIX**(x-1) is a representable float */
+#undef FLT_MAX_EXP
+#define FLT_MAX_EXP 128
+ /* Maximum float */
+#undef FLT_MAX
+#define FLT_MAX 3.40282347e+38F
+ /* Maximum int x such that 10**x is a representable float */
+#undef FLT_MAX_10_EXP
+#define FLT_MAX_10_EXP 38
+
+ /* Number of base-FLT_RADIX digits in the significand of a double */
+#undef DBL_MANT_DIG
+#define DBL_MANT_DIG 53
+ /* Number of decimal digits of precision in a double */
+#undef DBL_DIG
+#define DBL_DIG 15
+ /* Difference between 1.0 and the minimum double greater than 1.0 */
+#undef DBL_EPSILON
+#define DBL_EPSILON 2.2204460492503131e-16
+ /* Minimum int x such that FLT_RADIX**(x-1) is a normalised double */
+#undef DBL_MIN_EXP
+#define DBL_MIN_EXP (-1021)
+ /* Minimum normalised double */
+#undef DBL_MIN
+#define DBL_MIN 2.2250738585072014e-308
+ /* Minimum int x such that 10**x is a normalised double */
+#undef DBL_MIN_10_EXP
+#define DBL_MIN_10_EXP (-307)
+ /* Maximum int x such that FLT_RADIX**(x-1) is a representable double */
+#undef DBL_MAX_EXP
+#define DBL_MAX_EXP 1024
+ /* Maximum double */
+#undef DBL_MAX
+#define DBL_MAX 1.7976931348623157e+308
+ /* Maximum int x such that 10**x is a representable double */
+#undef DBL_MAX_10_EXP
+#define DBL_MAX_10_EXP 308
+
+#if defined(__sparc_v9__) || defined(__sparcv9) || defined(__arch64__)
+
+ /* Number of base-FLT_RADIX digits in the significand of a long double */
+#undef LDBL_MANT_DIG
+#define LDBL_MANT_DIG 113
+ /* Number of decimal digits of precision in a long double */
+#undef LDBL_DIG
+#define LDBL_DIG 33
+ /* Difference between 1.0 and the minimum long double greater than 1.0 */
+#undef LDBL_EPSILON
+#define LDBL_EPSILON 1.925929944387235853055977942584927319E-34L
+ /* Minimum int x such that FLT_RADIX**(x-1) is a normalised long double */
+#undef LDBL_MIN_EXP
+#define LDBL_MIN_EXP (-16381)
+ /* Minimum normalised long double */
+#undef LDBL_MIN
+#define LDBL_MIN 3.362103143112093506262677817321752603E-4932L
+ /* Minimum int x such that 10**x is a normalised long double */
+#undef LDBL_MIN_10_EXP
+#define LDBL_MIN_10_EXP (-4931)
+ /* Maximum int x such that FLT_RADIX**(x-1) is a representable long double */
+#undef LDBL_MAX_EXP
+#define LDBL_MAX_EXP 16384
+ /* Maximum long double */
+#undef LDBL_MAX
+#define LDBL_MAX 1.189731495357231765085759326628007016E+4932L
+ /* Maximum int x such that 10**x is a representable long double */
+#undef LDBL_MAX_10_EXP
+#define LDBL_MAX_10_EXP 4932
+
+#else /* sparc32 */
+
+#undef LDBL_MANT_DIG
+#define LDBL_MANT_DIG DBL_MANT_DIG
+#undef LDBL_DIG
+#define LDBL_DIG DBL_DIG
+#undef LDBL_EPSILON
+#define LDBL_EPSILON DBL_EPSILON
+#undef LDBL_MIN_EXP
+#define LDBL_MIN_EXP DBL_MIN_EXP
+#undef LDBL_MIN
+#define LDBL_MIN DBL_MIN
+#undef LDBL_MIN_10_EXP
+#define LDBL_MIN_10_EXP DBL_MIN_10_EXP
+#undef LDBL_MAX_EXP
+#define LDBL_MAX_EXP DBL_MAX_EXP
+#undef LDBL_MAX
+#define LDBL_MAX DBLX_MAX
+#undef LDBL_MAX_10_EXP
+#define LDBL_MAX_10_EXP DBL_MAX_10_EXP
+
+#endif /* sparc32 */
+
+#endif /* _FLOAT_H_ */
--- gcc/configure.in.jj Wed Jun 9 09:39:12 1999
+++ gcc/configure.in Fri Jun 11 09:33:46 1999
@@ -3049,6 +3049,7 @@ changequote([,])dnl
tmake_file="t-linux t-linux-gnulibc1"
extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
gnu_ld=yes
+ float_format=sparc
;;
sparc-*-linux-gnu*) # Sparc's running GNU/Linux, libc6
xm_file="${xm_file} sparc/xm-linux.h"
@@ -3060,6 +3061,7 @@ changequote([,])dnl
if test x$enable_threads = xyes; then
thread_file='posix'
fi
+ float_format=sparc
;;
sparc-*-lynxos*)
if test x$gas = xyes
@@ -3202,6 +3204,7 @@ changequote([,])dnl
xmake_file=x-linux
extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
gnu_ld=yes
+ float_format=sparc
;;
# This hasn't been upgraded to GCC 2.
# tahoe-harris-*) # Harris tahoe, using COFF.
--- gcc/configure.jj Wed Jun 9 09:39:12 1999
+++ gcc/configure Fri Jun 11 09:33:52 1999
@@ -5354,6 +5354,7 @@ for machine in $build $host $target; do
tmake_file="t-linux t-linux-gnulibc1"
extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
gnu_ld=yes
+ float_format=sparc
;;
sparc-*-linux-gnu*) # Sparc's running GNU/Linux, libc6
xm_file="${xm_file} sparc/xm-linux.h"
@@ -5365,6 +5366,7 @@ for machine in $build $host $target; do
if test x$enable_threads = xyes; then
thread_file='posix'
fi
+ float_format=sparc
;;
sparc-*-lynxos*)
if test x$gas = xyes
@@ -5505,6 +5507,7 @@ for machine in $build $host $target; do
xmake_file=x-linux
extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
gnu_ld=yes
+ float_format=sparc
;;
# This hasn't been upgraded to GCC 2.
# tahoe-harris-*) # Harris tahoe, using COFF.
Cheers,
Jakub
___________________________________________________________________
Jakub Jelinek | jj@sunsite.mff.cuni.cz | http://sunsite.mff.cuni.cz
Administrator of SunSITE Czech Republic, MFF, Charles University
___________________________________________________________________
UltraLinux | http://ultra.linux.cz/ | http://ultra.penguin.cz/
Linux version 2.3.4 on a sparc64 machine (1343.49 BogoMips)
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