mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 03:51:15 +08:00
da3331ec16
* gdbarch.sh: Add missing opaque declarations. * gdbarch.h: Regnerate. * symtab.h: Add missing opaque declarations. * value.h, target.h, symfile.h, stabsread.h: Ditto. * x86-64-tdep.h, xmodem.h, monitor.h, typeprint.h: Ditto. * srec.h, solib-svr4.h, source.h, inferior.h: Ditto. * ser-unix.h, serial.h, remote-utils.h, gdbcore.h: Ditto. * ppc-tdep.h, ocd.h, mips-tdep.h, gdbtypes.h: Ditto. * buildsym.h, builtin-regs.h, linespec.h, language.h: Ditto. * i387-tdep.h, gdbthread.h, event-top.h, gdb.h: Ditto. * dwarf2cfi.h, doublest.h, disasm.h, cp-abi.h: Ditto. * cli-out.h, c-lang.h, ax-gdb.h, arch-utils.h: Ditto. * ada-lang.h, config/nm-lynx.h, config/nm-linux.h: Ditto. * config/sparc/tm-sp64.h, config/rs6000/tm-rs6000.h: Ditto. * config/pa/tm-hppah.h, config/m68k/tm-delta68.h: Ditto. * cli/cli-setshow.h, cli/cli-script.h: Ditto.
91 lines
3.6 KiB
C
91 lines
3.6 KiB
C
/* Floating point definitions for GDB.
|
|
|
|
Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
|
|
1996, 1997, 1998, 1999, 2000, 2001, 2003 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 2 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, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#ifndef DOUBLEST_H
|
|
#define DOUBLEST_H
|
|
|
|
struct type;
|
|
|
|
/* Setup definitions for host and target floating point formats. We need to
|
|
consider the format for `float', `double', and `long double' for both target
|
|
and host. We need to do this so that we know what kind of conversions need
|
|
to be done when converting target numbers to and from the hosts DOUBLEST
|
|
data type. */
|
|
|
|
/* This is used to indicate that we don't know the format of the floating point
|
|
number. Typically, this is useful for native ports, where the actual format
|
|
is irrelevant, since no conversions will be taking place. */
|
|
|
|
#include "floatformat.h" /* For 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. */
|
|
|
|
#ifdef HAVE_LONG_DOUBLE
|
|
typedef long double DOUBLEST;
|
|
#else
|
|
typedef double DOUBLEST;
|
|
#endif
|
|
|
|
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 *, char *);
|
|
extern int floatformat_is_nan (const struct floatformat *, char *);
|
|
extern char *floatformat_mantissa (const struct floatformat *, char *);
|
|
|
|
/* These functions have been replaced by extract_typed_floating and
|
|
store_typed_floating.
|
|
|
|
Most calls are passing in TYPE_LENGTH (TYPE) so can be changed to
|
|
just pass the TYPE. The remainder pass in the length of a
|
|
register, those calls should instead pass in the floating point
|
|
type that corresponds to that length. */
|
|
|
|
extern DOUBLEST deprecated_extract_floating (const void *addr, int len);
|
|
extern void deprecated_store_floating (void *addr, int len, DOUBLEST val);
|
|
|
|
/* Given TYPE, return its floatformat. TYPE_FLOATFORMAT() may return
|
|
NULL. type_floatformat() detects that and returns a floatformat
|
|
based on the type size when FLOATFORMAT is NULL. */
|
|
|
|
const struct floatformat *floatformat_from_type (const struct type *type);
|
|
|
|
extern DOUBLEST extract_typed_floating (const void *addr,
|
|
const struct type *type);
|
|
extern void store_typed_floating (void *addr, const struct type *type,
|
|
DOUBLEST val);
|
|
extern void convert_typed_floating (const void *from,
|
|
const struct type *from_type,
|
|
void *to, const struct type *to_type);
|
|
|
|
#endif
|