[patch/rfc] Add host's floatformat

Andrew Cagney
2004-05-01T12:53:45Z

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Hello,

This patch adds the host's floatformat (when known) to floatformat.[hc].
It lets us wack of a heap of bogus code in GDB's configury.

DJ, any comments? I'll need to double commit.

Andrew

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2004-04-30 Andrew Cagney <cagney@redhat.com>

* configure.ac: Define HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT, and
HOST_LONG_DOUBLE_FORMAT.
* configure, config.in: Re-generate.
* floatformat.c (floatformat_float, floatformat_double)
(floatformat_long_double):

Index: include/ChangeLog
2004-04-30 Andrew Cagney <cagney@redhat.com>

* floatformat.h (floatformat_float, floatformat_double)
(floatformat_long_double): Declare.

Index: libiberty/configure.ac
===================================================================
RCS file: /cvs/src/src/libiberty/configure.ac,v
retrieving revision 1.6
diff -p -u -r1.6 configure.ac
--- libiberty/configure.ac 26 Apr 2004 18:23:59 -0000 1.6
+++ libiberty/configure.ac 1 May 2004 12:46:58 -0000
@@ -520,6 +520,28 @@ case "${host}" in
esac
AC_SUBST(pexecute)

+# Figure out which floatformat to use.
+case "${host}" in
+i[34567]86-*-*)
+ host_float_format="&floatformat_ieee_single_little"
+ host_double_format="&floatformat_ieee_double_little"
+ host_long_double_format="&floatformat_i387_ext"
+ ;;
+hppa*-*-linux*)
+ host_float_format="&floatformat_ieee_single_big"
+ host_double_format="&floatformat_ieee_double_big"
+ host_long_double_format="&floatformat_ieee_double_big"
+ ;;
+*)
+ host_float_format=0
+ host_double_format=0
+ host_long_double_format=0
+ ;;
+esac
+AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT,$host_float_format,[Host float floatformat])
+AC_DEFINE_UNQUOTED(HOST_DOUBLE_FORMAT,$host_double_format,[Host double floatformat])
+AC_DEFINE_UNQUOTED(HOST_LONG_DOUBLE_FORMAT,$host_long_double_format,[Host long double floatformat])
+
libiberty_AC_FUNC_STRNCMP

# Install a library built with a cross compiler in $(tooldir) rather
Index: libiberty/floatformat.c
===================================================================
RCS file: /cvs/src/src/libiberty/floatformat.c,v
retrieving revision 1.12
diff -p -u -r1.12 floatformat.c
--- libiberty/floatformat.c 3 Dec 2003 19:03:29 -0000 1.12
+++ libiberty/floatformat.c 1 May 2004 12:46:58 -0000
@@ -548,6 +548,10 @@ floatformat_is_valid (fmt, from)
return fmt->is_valid (fmt, from);
}

+/* If non-NULL, the host's floatformat. */
+const struct floatformat *const floatformat_float = HOST_FLOAT_FORMAT;
+const struct floatformat *const floatformat_double = HOST_DOUBLE_FORMAT;
+const struct floatformat *const floatformat_long_double = HOST_LONG_DOUBLE_FORMAT;

#ifdef IEEE_DEBUG

Index: include/floatformat.h
===================================================================
RCS file: /cvs/src/src/include/floatformat.h,v
retrieving revision 1.9
diff -p -u -r1.9 floatformat.h
--- include/floatformat.h 22 Sep 2003 17:41:02 -0000 1.9
+++ include/floatformat.h 1 May 2004 12:47:00 -0000
@@ -130,4 +130,9 @@ floatformat_from_double PARAMS ((const s
extern int
floatformat_is_valid PARAMS ((const struct floatformat *fmt, const char *from));

+/* If non-NULL, the host's floatformat. */
+extern const struct floatformat *const floatformat_float;
+extern const struct floatformat *const floatformat_double;
+extern const struct floatformat *const floatformat_long_double;
+
#endif /* defined (FLOATFORMAT_H) */