Target FP: Merge doublest.c and dfp.c into target-float.c

Now that all target FP operations are performed via target-float.c,
this file remains the sole caller of functions in doublest.c and dfp.c.
Therefore, this patch merges the latter files into the former and
makes all their function static there.

gdb/ChangeLog:
2017-11-06  Ulrich Weigand  <uweigand@de.ibm.com>

	* Makefile.in (SFILES): Remove doublest.c and dfp.c.
	(HFILES_NO_SRCDIR): Remove doublest.h and dfp.h.
	(COMMON_OBS): Remove doublest.o and dfp.o.
	Do not build target-float.c (instead of doublest.c)
	with -Wformat-nonliteral.

	* doublest.c: Remove file.
	* doublest.h: Remove file.
	* dfp.c: Remove file.
	* dfp.h: Remove file.

	* target-float.c: Do not include "doublest.h" and "dfp.h".
	(DOUBLEST): Move here from doublest.h.
	(enum float_kind): Likewise.
	(FLOATFORMAT_CHAR_BIT): Likewise.
	(FLOATFORMAT_LARGEST_BYTES): Likewise.
	(floatformat_totalsize_bytes): Move here from doublest.c.  Make static.
	(floatformat_precision): Likewise.
	(floatformat_normalize_byteorder, get_field, put_field): Likewise.
	(floatformat_is_negative, floatformat_classify, floatformat_mantissa):
	Likewise.
	(host_float_format, host_double_format, host_long_double_format):
	Likewise.
	(floatformat_to_string, floatformat_from_string): Likewise.
	(floatformat_to_doublest): Likewise.  Also, inline the original
	convert_floatformat_to_doublest.
	(floatformat_from_doublest): Likewise.  Also, inline the original
	convert_floatformat_from_doublest.

	Include "dpd/decimal128.h", "dpd/decimal64.h", and "dpd/decimal32.h".
	(MAX_DECIMAL_STRING): Move here from dfp.c.
	(match_endianness): Likewise.
	(set_decnumber_context, decimal_check_errors): Likewise.
	(decimal_from_number, decimal_to_number): Likewise.
	(decimal_to_string, decimal_from_string): Likewise.  Make static.
	(decimal_from_longest, decimal_from_ulongest): Likewise.
	(decimal_to_longest): Likewise.
	(decimal_binop, decimal_is_zero, decimal_compare): Likewise.
	(decimal_convert): Likewise.

1 files changed, 0 insertions, 79 deletions

diff --git a/gdb/doublest.h b/gdb/doublest.h
deleted file mode 100644
index fe3f897..0000000
--- a/gdb/doublest.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/* Floating point definitions for GDB.
-
-   Copyright (C) 1986-2017 Free Software Foundation, Inc.
-
-   This file is part of GDB.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program 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 General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef DOUBLEST_H
-#define DOUBLEST_H
-
-struct floatformat;
-
-/* Use `long double' if the host compiler supports it.  (Note that this is not
-   necessarily any longer than `double'.  On SunOS/gcc, it's the same as
-   double.)  This is necessary because GDB internally converts all floating
-   point values to the widest type supported by the host.
-
-   There are problems however, when the target `long double' is longer than the
-   host's `long double'.  In general, we'll probably reduce the precision of
-   any such values and print a warning.  */
-
-#if (defined HAVE_LONG_DOUBLE && defined PRINTF_HAS_LONG_DOUBLE \
-     && defined SCANF_HAS_LONG_DOUBLE)
-typedef long double DOUBLEST;
-#else
-typedef double DOUBLEST;
-/* If we can't scan or print long double, we don't want to use it
-   anywhere.  */
-# undef HAVE_LONG_DOUBLE
-# undef PRINTF_HAS_LONG_DOUBLE
-# undef SCANF_HAS_LONG_DOUBLE
-#endif
-
-/* Different kinds of floatformat numbers recognized by
-   floatformat_classify.  To avoid portability issues, we use local
-   values instead of the C99 macros (FP_NAN et cetera).  */
-enum float_kind {
-  float_nan,
-  float_infinite,
-  float_zero,
-  float_normal,
-  float_subnormal
-};
-
-extern void floatformat_to_doublest (const struct floatformat *,
-				     const void *in, DOUBLEST *out);
-extern void floatformat_from_doublest (const struct floatformat *,
-				       const DOUBLEST *in, void *out);
-
-extern int floatformat_is_negative (const struct floatformat *,
-				    const bfd_byte *);
-extern enum float_kind floatformat_classify (const struct floatformat *,
-					     const bfd_byte *);
-extern const char *floatformat_mantissa (const struct floatformat *,
-					 const bfd_byte *);
-
-extern std::string floatformat_to_string (const struct floatformat *fmt,
-					  const gdb_byte *in,
-					  const char *format = nullptr);
-extern bool floatformat_from_string (const struct floatformat *fmt,
-				     gdb_byte *out, const std::string &in);
-
-/* Return the floatformat's total size in host bytes.  */
-
-extern size_t floatformat_totalsize_bytes (const struct floatformat *fmt);
-
-#endif