* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
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/* Floating point routines for GDB, the GNU debugger.
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2003-04-09 17:08:27 +02:00
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2017-01-01 07:50:51 +01:00
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Copyright (C) 1986-2017 Free Software Foundation, Inc.
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* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2007-08-23 20:08:50 +02:00
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the Free Software Foundation; either version 3 of the License, or
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
|
2007-08-23 20:08:50 +02:00
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
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/* Support for converting target fp numbers into host DOUBLEST format. */
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/* XXX - This code should really be in libiberty/floatformat.c,
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however configuration issues with libiberty made this very
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difficult to do in the available time. */
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#include "defs.h"
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#include "doublest.h"
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#include "floatformat.h"
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2001-09-24 19:16:53 +02:00
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#include "gdbtypes.h"
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
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#include <math.h> /* ldexp */
|
gdb: Use std::min and std::max throughout
Otherwise including <string> or some other C++ header is broken.
E.g.:
In file included from /opt/gcc/include/c++/7.0.0/bits/char_traits.h:39:0,
from /opt/gcc/include/c++/7.0.0/string:40,
from /home/pedro/gdb/mygit/cxx-convertion/src/gdb/infrun.c:68:
/opt/gcc/include/c++/7.0.0/bits/stl_algobase.h:243:56: error: macro "min" passed 3 arguments, but takes just 2
min(const _Tp& __a, const _Tp& __b, _Compare __comp)
^
/opt/gcc/include/c++/7.0.0/bits/stl_algobase.h:265:56: error: macro "max" passed 3 arguments, but takes just 2
max(const _Tp& __a, const _Tp& __b, _Compare __comp)
^
In file included from .../src/gdb/infrun.c:21:0:
To the best of my grepping abilities, I believe I adjusted all min/max
calls.
gdb/ChangeLog:
2016-09-16 Pedro Alves <palves@redhat.com>
* defs.h (min, max): Delete.
* aarch64-tdep.c: Include <algorithm> and use std::min and
std::max throughout.
* aarch64-tdep.c: Likewise.
* alpha-tdep.c: Likewise.
* amd64-tdep.c: Likewise.
* amd64-windows-tdep.c: Likewise.
* arm-tdep.c: Likewise.
* avr-tdep.c: Likewise.
* breakpoint.c: Likewise.
* btrace.c: Likewise.
* ctf.c: Likewise.
* disasm.c: Likewise.
* doublest.c: Likewise.
* dwarf2loc.c: Likewise.
* dwarf2read.c: Likewise.
* environ.c: Likewise.
* exec.c: Likewise.
* f-exp.y: Likewise.
* findcmd.c: Likewise.
* ft32-tdep.c: Likewise.
* gcore.c: Likewise.
* hppa-tdep.c: Likewise.
* i386-darwin-tdep.c: Likewise.
* i386-tdep.c: Likewise.
* linux-thread-db.c: Likewise.
* lm32-tdep.c: Likewise.
* m32r-tdep.c: Likewise.
* m88k-tdep.c: Likewise.
* memrange.c: Likewise.
* minidebug.c: Likewise.
* mips-tdep.c: Likewise.
* moxie-tdep.c: Likewise.
* nds32-tdep.c: Likewise.
* nios2-tdep.c: Likewise.
* nto-procfs.c: Likewise.
* parse.c: Likewise.
* ppc-sysv-tdep.c: Likewise.
* probe.c: Likewise.
* record-btrace.c: Likewise.
* remote.c: Likewise.
* rs6000-tdep.c: Likewise.
* rx-tdep.c: Likewise.
* s390-linux-nat.c: Likewise.
* s390-linux-tdep.c: Likewise.
* ser-tcp.c: Likewise.
* sh-tdep.c: Likewise.
* sh64-tdep.c: Likewise.
* source.c: Likewise.
* sparc-tdep.c: Likewise.
* symfile.c: Likewise.
* target-memory.c: Likewise.
* target.c: Likewise.
* tic6x-tdep.c: Likewise.
* tilegx-tdep.c: Likewise.
* tracefile-tfile.c: Likewise.
* tracepoint.c: Likewise.
* valprint.c: Likewise.
* value.c: Likewise.
* xtensa-tdep.c: Likewise.
* cli/cli-cmds.c: Likewise.
* compile/compile-object-load.c: Likewise.
2016-09-16 20:55:17 +02:00
|
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#include <algorithm>
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
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|
/* The odds that CHAR_BIT will be anything but 8 are low enough that I'm not
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|
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|
going to bother with trying to muck around with whether it is defined in
|
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a system header, what we do if not, etc. */
|
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#define FLOATFORMAT_CHAR_BIT 8
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|
2004-12-05 16:17:34 +01:00
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/* The number of bytes that the largest floating-point type that we
|
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can convert to doublest will need. */
|
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|
#define FLOATFORMAT_LARGEST_BYTES 16
|
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|
|
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
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|
|
/* Extract a field which starts at START and is LEN bytes long. DATA and
|
|
|
|
|
TOTAL_LEN are the thing we are extracting it from, in byteorder ORDER. */
|
|
|
|
|
static unsigned long
|
2005-01-28 07:06:27 +01:00
|
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|
get_field (const bfd_byte *data, enum floatformat_byteorders order,
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
unsigned int total_len, unsigned int start, unsigned int len)
|
|
|
|
|
{
|
|
|
|
|
unsigned long result;
|
|
|
|
|
unsigned int cur_byte;
|
|
|
|
|
int cur_bitshift;
|
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
/* Caller must byte-swap words before calling this routine. */
|
|
|
|
|
gdb_assert (order == floatformat_little || order == floatformat_big);
|
|
|
|
|
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
/* Start at the least significant part of the field. */
|
2004-12-05 16:17:34 +01:00
|
|
|
|
if (order == floatformat_little)
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
{
|
|
|
|
|
/* We start counting from the other end (i.e, from the high bytes
|
|
|
|
|
rather than the low bytes). As such, we need to be concerned
|
2011-01-07 20:36:19 +01:00
|
|
|
|
with what happens if bit 0 doesn't start on a byte boundary.
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
I.e, we need to properly handle the case where total_len is
|
|
|
|
|
not evenly divisible by 8. So we compute ``excess'' which
|
|
|
|
|
represents the number of bits from the end of our starting
|
2011-01-07 20:36:19 +01:00
|
|
|
|
byte needed to get to bit 0. */
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
int excess = FLOATFORMAT_CHAR_BIT - (total_len % FLOATFORMAT_CHAR_BIT);
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
cur_byte = (total_len / FLOATFORMAT_CHAR_BIT)
|
|
|
|
|
- ((start + len + excess) / FLOATFORMAT_CHAR_BIT);
|
|
|
|
|
cur_bitshift = ((start + len + excess) % FLOATFORMAT_CHAR_BIT)
|
|
|
|
|
- FLOATFORMAT_CHAR_BIT;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
cur_byte = (start + len) / FLOATFORMAT_CHAR_BIT;
|
|
|
|
|
cur_bitshift =
|
|
|
|
|
((start + len) % FLOATFORMAT_CHAR_BIT) - FLOATFORMAT_CHAR_BIT;
|
|
|
|
|
}
|
|
|
|
|
if (cur_bitshift > -FLOATFORMAT_CHAR_BIT)
|
|
|
|
|
result = *(data + cur_byte) >> (-cur_bitshift);
|
|
|
|
|
else
|
|
|
|
|
result = 0;
|
|
|
|
|
cur_bitshift += FLOATFORMAT_CHAR_BIT;
|
2004-12-05 16:17:34 +01:00
|
|
|
|
if (order == floatformat_little)
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
++cur_byte;
|
|
|
|
|
else
|
|
|
|
|
--cur_byte;
|
|
|
|
|
|
|
|
|
|
/* Move towards the most significant part of the field. */
|
|
|
|
|
while (cur_bitshift < len)
|
|
|
|
|
{
|
|
|
|
|
result |= (unsigned long)*(data + cur_byte) << cur_bitshift;
|
|
|
|
|
cur_bitshift += FLOATFORMAT_CHAR_BIT;
|
2004-07-29 21:33:22 +02:00
|
|
|
|
switch (order)
|
|
|
|
|
{
|
|
|
|
|
case floatformat_little:
|
|
|
|
|
++cur_byte;
|
|
|
|
|
break;
|
|
|
|
|
case floatformat_big:
|
|
|
|
|
--cur_byte;
|
|
|
|
|
break;
|
|
|
|
|
}
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
}
|
|
|
|
|
if (len < sizeof(result) * FLOATFORMAT_CHAR_BIT)
|
2011-01-07 20:36:19 +01:00
|
|
|
|
/* Mask out bits which are not part of the field. */
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
result &= ((1UL << len) - 1);
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
|
2005-11-01 00:35:52 +01:00
|
|
|
|
/* Normalize the byte order of FROM into TO. If no normalization is
|
|
|
|
|
needed then FMT->byteorder is returned and TO is not changed;
|
|
|
|
|
otherwise the format of the normalized form in TO is returned. */
|
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
static enum floatformat_byteorders
|
|
|
|
|
floatformat_normalize_byteorder (const struct floatformat *fmt,
|
|
|
|
|
const void *from, void *to)
|
|
|
|
|
{
|
|
|
|
|
const unsigned char *swapin;
|
|
|
|
|
unsigned char *swapout;
|
|
|
|
|
int words;
|
|
|
|
|
|
|
|
|
|
if (fmt->byteorder == floatformat_little
|
|
|
|
|
|| fmt->byteorder == floatformat_big)
|
|
|
|
|
return fmt->byteorder;
|
|
|
|
|
|
|
|
|
|
words = fmt->totalsize / FLOATFORMAT_CHAR_BIT;
|
|
|
|
|
words >>= 2;
|
|
|
|
|
|
|
|
|
|
swapout = (unsigned char *)to;
|
|
|
|
|
swapin = (const unsigned char *)from;
|
|
|
|
|
|
2005-11-01 00:35:52 +01:00
|
|
|
|
if (fmt->byteorder == floatformat_vax)
|
|
|
|
|
{
|
|
|
|
|
while (words-- > 0)
|
|
|
|
|
{
|
|
|
|
|
*swapout++ = swapin[1];
|
|
|
|
|
*swapout++ = swapin[0];
|
|
|
|
|
*swapout++ = swapin[3];
|
|
|
|
|
*swapout++ = swapin[2];
|
|
|
|
|
swapin += 4;
|
|
|
|
|
}
|
|
|
|
|
/* This may look weird, since VAX is little-endian, but it is
|
|
|
|
|
easier to translate to big-endian than to little-endian. */
|
|
|
|
|
return floatformat_big;
|
|
|
|
|
}
|
|
|
|
|
else
|
2004-12-05 16:17:34 +01:00
|
|
|
|
{
|
2005-11-01 00:35:52 +01:00
|
|
|
|
gdb_assert (fmt->byteorder == floatformat_littlebyte_bigword);
|
|
|
|
|
|
|
|
|
|
while (words-- > 0)
|
|
|
|
|
{
|
|
|
|
|
*swapout++ = swapin[3];
|
|
|
|
|
*swapout++ = swapin[2];
|
|
|
|
|
*swapout++ = swapin[1];
|
|
|
|
|
*swapout++ = swapin[0];
|
|
|
|
|
swapin += 4;
|
|
|
|
|
}
|
|
|
|
|
return floatformat_big;
|
2004-12-05 16:17:34 +01:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
/* Convert from FMT to a DOUBLEST.
|
|
|
|
|
FROM is the address of the extended float.
|
|
|
|
|
Store the DOUBLEST in *TO. */
|
|
|
|
|
|
2001-08-12 03:45:49 +02:00
|
|
|
|
static void
|
|
|
|
|
convert_floatformat_to_doublest (const struct floatformat *fmt,
|
|
|
|
|
const void *from,
|
|
|
|
|
DOUBLEST *to)
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
{
|
|
|
|
|
unsigned char *ufrom = (unsigned char *) from;
|
|
|
|
|
DOUBLEST dto;
|
|
|
|
|
long exponent;
|
|
|
|
|
unsigned long mant;
|
|
|
|
|
unsigned int mant_bits, mant_off;
|
|
|
|
|
int mant_bits_left;
|
2011-01-07 20:36:19 +01:00
|
|
|
|
int special_exponent; /* It's a NaN, denorm or zero. */
|
2004-12-05 16:17:34 +01:00
|
|
|
|
enum floatformat_byteorders order;
|
|
|
|
|
unsigned char newfrom[FLOATFORMAT_LARGEST_BYTES];
|
2007-03-30 16:31:44 +02:00
|
|
|
|
enum float_kind kind;
|
2004-12-05 16:17:34 +01:00
|
|
|
|
|
|
|
|
|
gdb_assert (fmt->totalsize
|
|
|
|
|
<= FLOATFORMAT_LARGEST_BYTES * FLOATFORMAT_CHAR_BIT);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
2007-03-30 16:31:44 +02:00
|
|
|
|
/* For non-numbers, reuse libiberty's logic to find the correct
|
|
|
|
|
format. We do not lose any precision in this case by passing
|
|
|
|
|
through a double. */
|
Add some more casts (1/2)
Note: I needed to split this patch in two, otherwise it's too big for
the mailing list.
This patch adds explicit casts to situations where a void pointer is
assigned to a pointer to the "real" type. Building in C++ mode requires
those assignments to use an explicit cast. This includes, for example:
- callback arguments (cleanups, comparison functions, ...)
- data attached to some object (objfile, program space, etc) in the form
of a void pointer
- "user data" passed to some function
This patch comes from the commit "(mostly) auto-generated patch to insert
casts needed for C++", taken from Pedro's C++ branch.
Only files built on x86 with --enable-targets=all are modified, so the
native files for other arches will need to be dealt with separately.
I built-tested this with --enable-targets=all and reg-tested. To my
surprise, a test case (selftest.exp) had to be adjusted.
Here's the ChangeLog entry. Again, this was relatively quick to make
despite the length, thanks to David Malcom's script, although I don't
believe it's very useful information in that particular case...
gdb/ChangeLog:
* aarch64-tdep.c (aarch64_make_prologue_cache): Add cast(s).
(aarch64_make_stub_cache): Likewise.
(value_of_aarch64_user_reg): Likewise.
* ada-lang.c (ada_inferior_data_cleanup): Likewise.
(get_ada_inferior_data): Likewise.
(get_ada_pspace_data): Likewise.
(ada_pspace_data_cleanup): Likewise.
(ada_complete_symbol_matcher): Likewise.
(ada_exc_search_name_matches): Likewise.
* ada-tasks.c (get_ada_tasks_pspace_data): Likewise.
(get_ada_tasks_inferior_data): Likewise.
* addrmap.c (addrmap_mutable_foreach_worker): Likewise.
(splay_obstack_alloc): Likewise.
(splay_obstack_free): Likewise.
* alpha-linux-tdep.c (alpha_linux_supply_gregset): Likewise.
(alpha_linux_collect_gregset): Likewise.
(alpha_linux_supply_fpregset): Likewise.
(alpha_linux_collect_fpregset): Likewise.
* alpha-mdebug-tdep.c (alpha_mdebug_frame_unwind_cache): Likewise.
* alpha-tdep.c (alpha_lds): Likewise.
(alpha_sts): Likewise.
(alpha_sigtramp_frame_unwind_cache): Likewise.
(alpha_heuristic_frame_unwind_cache): Likewise.
(alpha_supply_int_regs): Likewise.
(alpha_fill_int_regs): Likewise.
(alpha_supply_fp_regs): Likewise.
(alpha_fill_fp_regs): Likewise.
* alphanbsd-tdep.c (alphanbsd_supply_fpregset): Likewise.
(alphanbsd_aout_supply_gregset): Likewise.
(alphanbsd_supply_gregset): Likewise.
* amd64-linux-tdep.c (amd64_linux_init_abi): Likewise.
(amd64_x32_linux_init_abi): Likewise.
* amd64-nat.c (amd64_supply_native_gregset): Likewise.
(amd64_collect_native_gregset): Likewise.
* amd64-tdep.c (amd64_frame_cache): Likewise.
(amd64_sigtramp_frame_cache): Likewise.
(amd64_epilogue_frame_cache): Likewise.
(amd64_supply_fxsave): Likewise.
(amd64_supply_xsave): Likewise.
(amd64_collect_fxsave): Likewise.
(amd64_collect_xsave): Likewise.
* amd64-windows-tdep.c (amd64_windows_frame_cache): Likewise.
* amd64obsd-tdep.c (amd64obsd_trapframe_cache): Likewise.
* arm-linux-tdep.c (arm_linux_supply_gregset): Likewise.
(arm_linux_collect_gregset): Likewise.
(arm_linux_supply_nwfpe): Likewise.
(arm_linux_collect_nwfpe): Likewise.
(arm_linux_supply_vfp): Likewise.
(arm_linux_collect_vfp): Likewise.
* arm-tdep.c (arm_find_mapping_symbol): Likewise.
(arm_prologue_unwind_stop_reason): Likewise.
(arm_prologue_this_id): Likewise.
(arm_prologue_prev_register): Likewise.
(arm_exidx_data_free): Likewise.
(arm_find_exidx_entry): Likewise.
(arm_stub_this_id): Likewise.
(arm_m_exception_this_id): Likewise.
(arm_m_exception_prev_register): Likewise.
(arm_normal_frame_base): Likewise.
(gdb_print_insn_arm): Likewise.
(arm_objfile_data_free): Likewise.
(arm_record_special_symbol): Likewise.
(value_of_arm_user_reg): Likewise.
* armbsd-tdep.c (armbsd_supply_fpregset): Likewise.
(armbsd_supply_gregset): Likewise.
* auto-load.c (auto_load_pspace_data_cleanup): Likewise.
(get_auto_load_pspace_data): Likewise.
(hash_loaded_script_entry): Likewise.
(eq_loaded_script_entry): Likewise.
(clear_section_scripts): Likewise.
(collect_matching_scripts): Likewise.
* auxv.c (auxv_inferior_data_cleanup): Likewise.
(get_auxv_inferior_data): Likewise.
* avr-tdep.c (avr_frame_unwind_cache): Likewise.
* ax-general.c (do_free_agent_expr_cleanup): Likewise.
* bfd-target.c (target_bfd_xfer_partial): Likewise.
(target_bfd_xclose): Likewise.
(target_bfd_get_section_table): Likewise.
* bfin-tdep.c (bfin_frame_cache): Likewise.
* block.c (find_block_in_blockvector): Likewise.
(call_site_for_pc): Likewise.
(block_find_non_opaque_type_preferred): Likewise.
* break-catch-sig.c (signal_catchpoint_insert_location): Likewise.
(signal_catchpoint_remove_location): Likewise.
(signal_catchpoint_breakpoint_hit): Likewise.
(signal_catchpoint_print_one): Likewise.
(signal_catchpoint_print_mention): Likewise.
(signal_catchpoint_print_recreate): Likewise.
* break-catch-syscall.c (get_catch_syscall_inferior_data): Likewise.
* breakpoint.c (do_cleanup_counted_command_line): Likewise.
(bp_location_compare_addrs): Likewise.
(get_first_locp_gte_addr): Likewise.
(check_tracepoint_command): Likewise.
(do_map_commands_command): Likewise.
(get_breakpoint_objfile_data): Likewise.
(free_breakpoint_probes): Likewise.
(do_captured_breakpoint_query): Likewise.
(compare_breakpoints): Likewise.
(bp_location_compare): Likewise.
(bpstat_remove_breakpoint_callback): Likewise.
(do_delete_breakpoint_cleanup): Likewise.
* bsd-uthread.c (bsd_uthread_set_supply_uthread): Likewise.
(bsd_uthread_set_collect_uthread): Likewise.
(bsd_uthread_activate): Likewise.
(bsd_uthread_fetch_registers): Likewise.
(bsd_uthread_store_registers): Likewise.
* btrace.c (check_xml_btrace_version): Likewise.
(parse_xml_btrace_block): Likewise.
(parse_xml_btrace_pt_config_cpu): Likewise.
(parse_xml_btrace_pt_raw): Likewise.
(parse_xml_btrace_pt): Likewise.
(parse_xml_btrace_conf_bts): Likewise.
(parse_xml_btrace_conf_pt): Likewise.
(do_btrace_data_cleanup): Likewise.
* c-typeprint.c (find_typedef_for_canonicalize): Likewise.
* charset.c (cleanup_iconv): Likewise.
(do_cleanup_iterator): Likewise.
* cli-out.c (cli_uiout_dtor): Likewise.
(cli_table_begin): Likewise.
(cli_table_body): Likewise.
(cli_table_end): Likewise.
(cli_table_header): Likewise.
(cli_begin): Likewise.
(cli_end): Likewise.
(cli_field_int): Likewise.
(cli_field_skip): Likewise.
(cli_field_string): Likewise.
(cli_field_fmt): Likewise.
(cli_spaces): Likewise.
(cli_text): Likewise.
(cli_message): Likewise.
(cli_wrap_hint): Likewise.
(cli_flush): Likewise.
(cli_redirect): Likewise.
(out_field_fmt): Likewise.
(field_separator): Likewise.
(cli_out_set_stream): Likewise.
* cli/cli-cmds.c (compare_symtabs): Likewise.
* cli/cli-dump.c (call_dump_func): Likewise.
(restore_section_callback): Likewise.
* cli/cli-script.c (clear_hook_in_cleanup): Likewise.
(do_restore_user_call_depth): Likewise.
(do_free_command_lines_cleanup): Likewise.
* coff-pe-read.c (get_section_vmas): Likewise.
(pe_as16): Likewise.
(pe_as32): Likewise.
* coffread.c (coff_symfile_read): Likewise.
* common/agent.c (agent_look_up_symbols): Likewise.
* common/filestuff.c (do_close_cleanup): Likewise.
* common/format.c (free_format_pieces_cleanup): Likewise.
* common/vec.c (vec_o_reserve): Likewise.
* compile/compile-c-support.c (print_one_macro): Likewise.
* compile/compile-c-symbols.c (hash_symbol_error): Likewise.
(eq_symbol_error): Likewise.
(del_symbol_error): Likewise.
(error_symbol_once): Likewise.
(gcc_convert_symbol): Likewise.
(gcc_symbol_address): Likewise.
(hash_symname): Likewise.
(eq_symname): Likewise.
* compile/compile-c-types.c (hash_type_map_instance): Likewise.
(eq_type_map_instance): Likewise.
(insert_type): Likewise.
(convert_type): Likewise.
* compile/compile-object-load.c (munmap_listp_free_cleanup): Likewise.
(setup_sections): Likewise.
(link_hash_table_free): Likewise.
(copy_sections): Likewise.
* compile/compile-object-run.c (do_module_cleanup): Likewise.
* compile/compile.c (compile_print_value): Likewise.
(do_rmdir): Likewise.
(cleanup_compile_instance): Likewise.
(cleanup_unlink_file): Likewise.
* completer.c (free_completion_tracker): Likewise.
* corelow.c (add_to_spuid_list): Likewise.
* cp-namespace.c (reset_directive_searched): Likewise.
* cp-support.c (reset_directive_searched): Likewise.
* cris-tdep.c (cris_sigtramp_frame_unwind_cache): Likewise.
(cris_frame_unwind_cache): Likewise.
* d-lang.c (builtin_d_type): Likewise.
* d-namespace.c (reset_directive_searched): Likewise.
* dbxread.c (dbx_free_symfile_info): Likewise.
(do_free_bincl_list_cleanup): Likewise.
* disasm.c (hash_dis_line_entry): Likewise.
(eq_dis_line_entry): Likewise.
(dis_asm_print_address): Likewise.
(fprintf_disasm): Likewise.
(do_ui_file_delete): Likewise.
* doublest.c (convert_floatformat_to_doublest): Likewise.
* dummy-frame.c (pop_dummy_frame_bpt): Likewise.
(dummy_frame_prev_register): Likewise.
(dummy_frame_this_id): Likewise.
* dwarf2-frame-tailcall.c (cache_hash): Likewise.
(cache_eq): Likewise.
(cache_find): Likewise.
(tailcall_frame_this_id): Likewise.
(dwarf2_tailcall_prev_register_first): Likewise.
(tailcall_frame_prev_register): Likewise.
(tailcall_frame_dealloc_cache): Likewise.
(tailcall_frame_prev_arch): Likewise.
* dwarf2-frame.c (dwarf2_frame_state_free): Likewise.
(dwarf2_frame_set_init_reg): Likewise.
(dwarf2_frame_init_reg): Likewise.
(dwarf2_frame_set_signal_frame_p): Likewise.
(dwarf2_frame_signal_frame_p): Likewise.
(dwarf2_frame_set_adjust_regnum): Likewise.
(dwarf2_frame_adjust_regnum): Likewise.
(clear_pointer_cleanup): Likewise.
(dwarf2_frame_cache): Likewise.
(find_cie): Likewise.
(dwarf2_frame_find_fde): Likewise.
* dwarf2expr.c (dwarf_expr_address_type): Likewise.
(free_dwarf_expr_context_cleanup): Likewise.
* dwarf2loc.c (locexpr_find_frame_base_location): Likewise.
(locexpr_get_frame_base): Likewise.
(loclist_find_frame_base_location): Likewise.
(loclist_get_frame_base): Likewise.
(dwarf_expr_dwarf_call): Likewise.
(dwarf_expr_get_base_type): Likewise.
(dwarf_expr_push_dwarf_reg_entry_value): Likewise.
(dwarf_expr_get_obj_addr): Likewise.
(entry_data_value_coerce_ref): Likewise.
(entry_data_value_copy_closure): Likewise.
(entry_data_value_free_closure): Likewise.
(get_frame_address_in_block_wrapper): Likewise.
(dwarf2_evaluate_property): Likewise.
(dwarf2_compile_property_to_c): Likewise.
(needs_frame_read_addr_from_reg): Likewise.
(needs_frame_get_reg_value): Likewise.
(needs_frame_frame_base): Likewise.
(needs_frame_frame_cfa): Likewise.
(needs_frame_tls_address): Likewise.
(needs_frame_dwarf_call): Likewise.
(needs_dwarf_reg_entry_value): Likewise.
(get_ax_pc): Likewise.
(locexpr_read_variable): Likewise.
(locexpr_read_variable_at_entry): Likewise.
(locexpr_read_needs_frame): Likewise.
(locexpr_describe_location): Likewise.
(locexpr_tracepoint_var_ref): Likewise.
(locexpr_generate_c_location): Likewise.
(loclist_read_variable): Likewise.
(loclist_read_variable_at_entry): Likewise.
(loclist_describe_location): Likewise.
(loclist_tracepoint_var_ref): Likewise.
(loclist_generate_c_location): Likewise.
* dwarf2read.c (line_header_hash_voidp): Likewise.
(line_header_eq_voidp): Likewise.
(dwarf2_has_info): Likewise.
(dwarf2_get_section_info): Likewise.
(locate_dwz_sections): Likewise.
(hash_file_name_entry): Likewise.
(eq_file_name_entry): Likewise.
(delete_file_name_entry): Likewise.
(dw2_setup): Likewise.
(dw2_get_file_names_reader): Likewise.
(dw2_find_pc_sect_compunit_symtab): Likewise.
(hash_signatured_type): Likewise.
(eq_signatured_type): Likewise.
(add_signatured_type_cu_to_table): Likewise.
(create_debug_types_hash_table): Likewise.
(lookup_dwo_signatured_type): Likewise.
(lookup_dwp_signatured_type): Likewise.
(lookup_signatured_type): Likewise.
(hash_type_unit_group): Likewise.
(eq_type_unit_group): Likewise.
(get_type_unit_group): Likewise.
(process_psymtab_comp_unit_reader): Likewise.
(sort_tu_by_abbrev_offset): Likewise.
(process_skeletonless_type_unit): Likewise.
(psymtabs_addrmap_cleanup): Likewise.
(dwarf2_read_symtab): Likewise.
(psymtab_to_symtab_1): Likewise.
(die_hash): Likewise.
(die_eq): Likewise.
(load_full_comp_unit_reader): Likewise.
(reset_die_in_process): Likewise.
(free_cu_line_header): Likewise.
(handle_DW_AT_stmt_list): Likewise.
(hash_dwo_file): Likewise.
(eq_dwo_file): Likewise.
(hash_dwo_unit): Likewise.
(eq_dwo_unit): Likewise.
(create_dwo_cu_reader): Likewise.
(create_dwo_unit_in_dwp_v1): Likewise.
(create_dwo_unit_in_dwp_v2): Likewise.
(lookup_dwo_unit_in_dwp): Likewise.
(dwarf2_locate_dwo_sections): Likewise.
(dwarf2_locate_common_dwp_sections): Likewise.
(dwarf2_locate_v2_dwp_sections): Likewise.
(hash_dwp_loaded_cutus): Likewise.
(eq_dwp_loaded_cutus): Likewise.
(lookup_dwo_cutu): Likewise.
(abbrev_table_free_cleanup): Likewise.
(dwarf2_free_abbrev_table): Likewise.
(find_partial_die_in_comp_unit): Likewise.
(free_line_header_voidp): Likewise.
(follow_die_offset): Likewise.
(follow_die_sig_1): Likewise.
(free_heap_comp_unit): Likewise.
(free_stack_comp_unit): Likewise.
(dwarf2_free_objfile): Likewise.
(per_cu_offset_and_type_hash): Likewise.
(per_cu_offset_and_type_eq): Likewise.
(get_die_type_at_offset): Likewise.
(partial_die_hash): Likewise.
(partial_die_eq): Likewise.
(dwarf2_per_objfile_free): Likewise.
(hash_strtab_entry): Likewise.
(eq_strtab_entry): Likewise.
(add_string): Likewise.
(hash_symtab_entry): Likewise.
(eq_symtab_entry): Likewise.
(delete_symtab_entry): Likewise.
(cleanup_mapped_symtab): Likewise.
(add_indices_to_cpool): Likewise.
(hash_psymtab_cu_index): Likewise.
(eq_psymtab_cu_index): Likewise.
(add_address_entry_worker): Likewise.
(unlink_if_set): Likewise.
(write_one_signatured_type): Likewise.
(save_gdb_index_command): Likewise.
* elfread.c (elf_symtab_read): Likewise.
(elf_gnu_ifunc_cache_hash): Likewise.
(elf_gnu_ifunc_cache_eq): Likewise.
(elf_gnu_ifunc_record_cache): Likewise.
(elf_gnu_ifunc_resolve_by_cache): Likewise.
(elf_get_probes): Likewise.
(probe_key_free): Likewise.
* f-lang.c (builtin_f_type): Likewise.
* frame-base.c (frame_base_append_sniffer): Likewise.
(frame_base_set_default): Likewise.
(frame_base_find_by_frame): Likewise.
* frame-unwind.c (frame_unwind_prepend_unwinder): Likewise.
(frame_unwind_append_unwinder): Likewise.
(frame_unwind_find_by_frame): Likewise.
* frame.c (frame_addr_hash): Likewise.
(frame_addr_hash_eq): Likewise.
(frame_stash_find): Likewise.
(do_frame_register_read): Likewise.
(unwind_to_current_frame): Likewise.
(frame_cleanup_after_sniffer): Likewise.
* frv-linux-tdep.c (frv_linux_sigtramp_frame_cache): Likewise.
* frv-tdep.c (frv_frame_unwind_cache): Likewise.
* ft32-tdep.c (ft32_frame_cache): Likewise.
* gcore.c (do_bfd_delete_cleanup): Likewise.
(gcore_create_callback): Likewise.
* gdb_bfd.c (hash_bfd): Likewise.
(eq_bfd): Likewise.
(gdb_bfd_open): Likewise.
(free_one_bfd_section): Likewise.
(gdb_bfd_ref): Likewise.
(gdb_bfd_unref): Likewise.
(get_section_descriptor): Likewise.
(gdb_bfd_map_section): Likewise.
(gdb_bfd_crc): Likewise.
(gdb_bfd_mark_parent): Likewise.
(gdb_bfd_record_inclusion): Likewise.
(gdb_bfd_requires_relocations): Likewise.
(print_one_bfd): Likewise.
* gdbtypes.c (type_pair_hash): Likewise.
(type_pair_eq): Likewise.
(builtin_type): Likewise.
(objfile_type): Likewise.
* gnu-v3-abi.c (vtable_ptrdiff_type): Likewise.
(vtable_address_point_offset): Likewise.
(gnuv3_get_vtable): Likewise.
(hash_value_and_voffset): Likewise.
(eq_value_and_voffset): Likewise.
(compare_value_and_voffset): Likewise.
(compute_vtable_size): Likewise.
(gnuv3_get_typeid_type): Likewise.
* go-lang.c (builtin_go_type): Likewise.
* guile/scm-block.c (bkscm_hash_block_smob): Likewise.
(bkscm_eq_block_smob): Likewise.
(bkscm_objfile_block_map): Likewise.
(bkscm_del_objfile_blocks): Likewise.
* guile/scm-breakpoint.c (bpscm_build_bp_list): Likewise.
* guile/scm-disasm.c (gdbscm_disasm_read_memory_worker): Likewise.
(gdbscm_disasm_print_address): Likewise.
* guile/scm-frame.c (frscm_hash_frame_smob): Likewise.
(frscm_eq_frame_smob): Likewise.
(frscm_inferior_frame_map): Likewise.
(frscm_del_inferior_frames): Likewise.
* guile/scm-gsmob.c (gdbscm_add_objfile_ref): Likewise.
* guile/scm-objfile.c (ofscm_handle_objfile_deleted): Likewise.
(ofscm_objfile_smob_from_objfile): Likewise.
* guile/scm-ports.c (ioscm_write): Likewise.
(ioscm_file_port_delete): Likewise.
(ioscm_file_port_rewind): Likewise.
(ioscm_file_port_put): Likewise.
(ioscm_file_port_write): Likewise.
* guile/scm-progspace.c (psscm_handle_pspace_deleted): Likewise.
(psscm_pspace_smob_from_pspace): Likewise.
* guile/scm-safe-call.c (scscm_recording_pre_unwind_handler): Likewise.
(scscm_recording_unwind_handler): Likewise.
(gdbscm_with_catch): Likewise.
(scscm_call_0_body): Likewise.
(scscm_call_1_body): Likewise.
(scscm_call_2_body): Likewise.
(scscm_call_3_body): Likewise.
(scscm_call_4_body): Likewise.
(scscm_apply_1_body): Likewise.
(scscm_eval_scheme_string): Likewise.
(gdbscm_safe_eval_string): Likewise.
(scscm_source_scheme_script): Likewise.
(gdbscm_safe_source_script): Likewise.
* guile/scm-string.c (gdbscm_call_scm_to_stringn): Likewise.
(gdbscm_call_scm_from_stringn): Likewise.
* guile/scm-symbol.c (syscm_hash_symbol_smob): Likewise.
(syscm_eq_symbol_smob): Likewise.
(syscm_get_symbol_map): Likewise.
(syscm_del_objfile_symbols): Likewise.
* guile/scm-symtab.c (stscm_hash_symtab_smob): Likewise.
(stscm_eq_symtab_smob): Likewise.
(stscm_objfile_symtab_map): Likewise.
(stscm_del_objfile_symtabs): Likewise.
* guile/scm-type.c (tyscm_hash_type_smob): Likewise.
(tyscm_eq_type_smob): Likewise.
(tyscm_type_map): Likewise.
(tyscm_copy_type_recursive): Likewise.
(save_objfile_types): Likewise.
* guile/scm-utils.c (extract_arg): Likewise.
* h8300-tdep.c (h8300_frame_cache): Likewise.
* hppa-linux-tdep.c (hppa_linux_sigtramp_frame_unwind_cache): Likewise.
* hppa-tdep.c (compare_unwind_entries): Likewise.
(find_unwind_entry): Likewise.
(hppa_frame_cache): Likewise.
(hppa_stub_frame_unwind_cache): Likewise.
* hppanbsd-tdep.c (hppanbsd_supply_gregset): Likewise.
* hppaobsd-tdep.c (hppaobsd_supply_gregset): Likewise.
(hppaobsd_supply_fpregset): Likewise.
* i386-cygwin-tdep.c (core_process_module_section): Likewise.
* i386-linux-tdep.c (i386_linux_init_abi): Likewise.
* i386-tdep.c (i386_frame_cache): Likewise.
(i386_epilogue_frame_cache): Likewise.
(i386_sigtramp_frame_cache): Likewise.
(i386_supply_gregset): Likewise.
(i386_collect_gregset): Likewise.
(i386_gdbarch_init): Likewise.
* i386obsd-tdep.c (i386obsd_aout_supply_regset): Likewise.
(i386obsd_trapframe_cache): Likewise.
* i387-tdep.c (i387_supply_fsave): Likewise.
(i387_collect_fsave): Likewise.
(i387_supply_fxsave): Likewise.
(i387_collect_fxsave): Likewise.
(i387_supply_xsave): Likewise.
(i387_collect_xsave): Likewise.
* ia64-tdep.c (ia64_frame_cache): Likewise.
(ia64_sigtramp_frame_cache): Likewise.
* infcmd.c (attach_command_continuation): Likewise.
(attach_command_continuation_free_args): Likewise.
* inferior.c (restore_inferior): Likewise.
(delete_thread_of_inferior): Likewise.
* inflow.c (inflow_inferior_data_cleanup): Likewise.
(get_inflow_inferior_data): Likewise.
(inflow_inferior_exit): Likewise.
* infrun.c (displaced_step_clear_cleanup): Likewise.
(restore_current_uiout_cleanup): Likewise.
(release_stop_context_cleanup): Likewise.
(do_restore_infcall_suspend_state_cleanup): Likewise.
(do_restore_infcall_control_state_cleanup): Likewise.
(restore_inferior_ptid): Likewise.
* inline-frame.c (block_starting_point_at): Likewise.
* iq2000-tdep.c (iq2000_frame_cache): Likewise.
* jit.c (get_jit_objfile_data): Likewise.
(get_jit_program_space_data): Likewise.
(jit_object_close_impl): Likewise.
(jit_find_objf_with_entry_addr): Likewise.
(jit_breakpoint_deleted): Likewise.
(jit_unwind_reg_set_impl): Likewise.
(jit_unwind_reg_get_impl): Likewise.
(jit_dealloc_cache): Likewise.
(jit_frame_sniffer): Likewise.
(jit_frame_prev_register): Likewise.
(jit_prepend_unwinder): Likewise.
(jit_inferior_exit_hook): Likewise.
(free_objfile_data): Likewise.
* jv-lang.c (jv_per_objfile_free): Likewise.
(get_dynamics_objfile): Likewise.
(get_java_class_symtab): Likewise.
(builtin_java_type): Likewise.
* language.c (language_string_char_type): Likewise.
(language_bool_type): Likewise.
(language_lookup_primitive_type): Likewise.
(language_lookup_primitive_type_as_symbol): Likewise.
* linespec.c (hash_address_entry): Likewise.
(eq_address_entry): Likewise.
(iterate_inline_only): Likewise.
(iterate_name_matcher): Likewise.
(decode_line_2_compare_items): Likewise.
(collect_one_symbol): Likewise.
(compare_symbols): Likewise.
(compare_msymbols): Likewise.
(add_symtabs_to_list): Likewise.
(collect_symbols): Likewise.
(compare_msyms): Likewise.
(add_minsym): Likewise.
(cleanup_linespec_result): Likewise.
* linux-fork.c (inferior_call_waitpid_cleanup): Likewise.
* linux-nat.c (delete_lwp_cleanup): Likewise.
(count_events_callback): Likewise.
(select_event_lwp_callback): Likewise.
(resume_stopped_resumed_lwps): Likewise.
* linux-tdep.c (get_linux_gdbarch_data): Likewise.
(invalidate_linux_cache_inf): Likewise.
(get_linux_inferior_data): Likewise.
(linux_find_memory_regions_thunk): Likewise.
(linux_make_mappings_callback): Likewise.
(linux_corefile_thread_callback): Likewise.
(find_mapping_size): Likewise.
* linux-thread-db.c (find_new_threads_callback): Likewise.
* lm32-tdep.c (lm32_frame_cache): Likewise.
* m2-lang.c (builtin_m2_type): Likewise.
* m32c-tdep.c (m32c_analyze_frame_prologue): Likewise.
* m32r-linux-tdep.c (m32r_linux_sigtramp_frame_cache): Likewise.
(m32r_linux_supply_gregset): Likewise.
(m32r_linux_collect_gregset): Likewise.
* m32r-tdep.c (m32r_frame_unwind_cache): Likewise.
* m68hc11-tdep.c (m68hc11_frame_unwind_cache): Likewise.
* m68k-tdep.c (m68k_frame_cache): Likewise.
* m68kbsd-tdep.c (m68kbsd_supply_fpregset): Likewise.
(m68kbsd_supply_gregset): Likewise.
* m68klinux-tdep.c (m68k_linux_sigtramp_frame_cache): Likewise.
* m88k-tdep.c (m88k_frame_cache): Likewise.
(m88k_supply_gregset): Likewise.
gdb/gdbserver/ChangeLog:
* dll.c (match_dll): Add cast(s).
(unloaded_dll): Likewise.
* linux-low.c (second_thread_of_pid_p): Likewise.
(delete_lwp_callback): Likewise.
(count_events_callback): Likewise.
(select_event_lwp_callback): Likewise.
(linux_set_resume_request): Likewise.
* server.c (accumulate_file_name_length): Likewise.
(emit_dll_description): Likewise.
(handle_qxfer_threads_worker): Likewise.
(visit_actioned_threads): Likewise.
* thread-db.c (any_thread_of): Likewise.
* tracepoint.c (same_process_p): Likewise.
(match_blocktype): Likewise.
(build_traceframe_info_xml): Likewise.
gdb/testsuite/ChangeLog:
* gdb.gdb/selftest.exp (do_steps_and_nexts): Adjust expected
source line.
2015-09-25 20:08:07 +02:00
|
|
|
|
kind = floatformat_classify (fmt, (const bfd_byte *) from);
|
2007-03-30 16:31:44 +02:00
|
|
|
|
if (kind == float_infinite || kind == float_nan)
|
|
|
|
|
{
|
|
|
|
|
double dto;
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
2013-08-20 08:42:19 +02:00
|
|
|
|
floatformat_to_double (fmt->split_half ? fmt->split_half : fmt,
|
|
|
|
|
from, &dto);
|
2007-03-30 16:31:44 +02:00
|
|
|
|
*to = (DOUBLEST) dto;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
order = floatformat_normalize_byteorder (fmt, ufrom, newfrom);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
if (order != fmt->byteorder)
|
|
|
|
|
ufrom = newfrom;
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
include:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.h (struct floatformat): Add split_half field.
(floatformat_ibm_long_double): New.
libiberty:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.c (mant_bits_set): New.
(floatformat_to_double): Use it. Note no special handling of
split formats.
(floatformat_from_double): Note no special handing of split
formats.
(floatformat_ibm_long_double_is_valid,
floatformat_ibm_long_double): New.
(floatformat_ieee_single_big, floatformat_ieee_single_little,
floatformat_ieee_double_big, floatformat_ieee_double_little,
floatformat_ieee_double_littlebyte_bigword, floatformat_vax_f,
floatformat_vax_d, floatformat_vax_g, floatformat_i387_ext,
floatformat_m68881_ext, floatformat_i960_ext,
floatformat_m88110_ext, floatformat_m88110_harris_ext,
floatformat_arm_ext_big, floatformat_arm_ext_littlebyte_bigword,
floatformat_ia64_spill_big, floatformat_ia64_spill_little,
floatformat_ia64_quad_big, floatformat_ia64_quad_little): Update
for addition of split_half field.
gdb:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdbtypes.c (floatformats_ibm_long_double): New.
* gdbtypes.h (floatformats_ibm_long_double): Declare.
* ia64-tdep.c (floatformat_ia64_ext): Update for addition of
split_half field.
* mips-tdep.c (n32n64_floatformat_always_valid,
floatformat_n32n64_long_double_big, floatformats_n32n64_long):
Remove.
(mips_gdbarch_init): Use floatformats_ibm_long_double instead of
floatformats_n32n64_long.
* ppc-linux-tdep.c (ppc_linux_init_abi): Use 128-bit IBM long
double.
* doublest.c (convert_floatformat_to_doublest,
convert_doublest_to_floatformat): Handle split floating-point
formats.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Handle IBM long
double arguments.
(ppc64_sysv_abi_push_dummy_call): Likewise.
(do_ppc_sysv_return_value): Handle IBM long double return.
2007-11-08 01:08:48 +01:00
|
|
|
|
if (fmt->split_half)
|
|
|
|
|
{
|
2008-01-03 12:39:35 +01:00
|
|
|
|
DOUBLEST dtop, dbot;
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
2008-01-03 12:39:35 +01:00
|
|
|
|
floatformat_to_doublest (fmt->split_half, ufrom, &dtop);
|
include:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.h (struct floatformat): Add split_half field.
(floatformat_ibm_long_double): New.
libiberty:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.c (mant_bits_set): New.
(floatformat_to_double): Use it. Note no special handling of
split formats.
(floatformat_from_double): Note no special handing of split
formats.
(floatformat_ibm_long_double_is_valid,
floatformat_ibm_long_double): New.
(floatformat_ieee_single_big, floatformat_ieee_single_little,
floatformat_ieee_double_big, floatformat_ieee_double_little,
floatformat_ieee_double_littlebyte_bigword, floatformat_vax_f,
floatformat_vax_d, floatformat_vax_g, floatformat_i387_ext,
floatformat_m68881_ext, floatformat_i960_ext,
floatformat_m88110_ext, floatformat_m88110_harris_ext,
floatformat_arm_ext_big, floatformat_arm_ext_littlebyte_bigword,
floatformat_ia64_spill_big, floatformat_ia64_spill_little,
floatformat_ia64_quad_big, floatformat_ia64_quad_little): Update
for addition of split_half field.
gdb:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdbtypes.c (floatformats_ibm_long_double): New.
* gdbtypes.h (floatformats_ibm_long_double): Declare.
* ia64-tdep.c (floatformat_ia64_ext): Update for addition of
split_half field.
* mips-tdep.c (n32n64_floatformat_always_valid,
floatformat_n32n64_long_double_big, floatformats_n32n64_long):
Remove.
(mips_gdbarch_init): Use floatformats_ibm_long_double instead of
floatformats_n32n64_long.
* ppc-linux-tdep.c (ppc_linux_init_abi): Use 128-bit IBM long
double.
* doublest.c (convert_floatformat_to_doublest,
convert_doublest_to_floatformat): Handle split floating-point
formats.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Handle IBM long
double arguments.
(ppc64_sysv_abi_push_dummy_call): Likewise.
(do_ppc_sysv_return_value): Handle IBM long double return.
2007-11-08 01:08:48 +01:00
|
|
|
|
/* Preserve the sign of 0, which is the sign of the top
|
|
|
|
|
half. */
|
|
|
|
|
if (dtop == 0.0)
|
|
|
|
|
{
|
2008-01-03 12:39:35 +01:00
|
|
|
|
*to = dtop;
|
include:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.h (struct floatformat): Add split_half field.
(floatformat_ibm_long_double): New.
libiberty:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.c (mant_bits_set): New.
(floatformat_to_double): Use it. Note no special handling of
split formats.
(floatformat_from_double): Note no special handing of split
formats.
(floatformat_ibm_long_double_is_valid,
floatformat_ibm_long_double): New.
(floatformat_ieee_single_big, floatformat_ieee_single_little,
floatformat_ieee_double_big, floatformat_ieee_double_little,
floatformat_ieee_double_littlebyte_bigword, floatformat_vax_f,
floatformat_vax_d, floatformat_vax_g, floatformat_i387_ext,
floatformat_m68881_ext, floatformat_i960_ext,
floatformat_m88110_ext, floatformat_m88110_harris_ext,
floatformat_arm_ext_big, floatformat_arm_ext_littlebyte_bigword,
floatformat_ia64_spill_big, floatformat_ia64_spill_little,
floatformat_ia64_quad_big, floatformat_ia64_quad_little): Update
for addition of split_half field.
gdb:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdbtypes.c (floatformats_ibm_long_double): New.
* gdbtypes.h (floatformats_ibm_long_double): Declare.
* ia64-tdep.c (floatformat_ia64_ext): Update for addition of
split_half field.
* mips-tdep.c (n32n64_floatformat_always_valid,
floatformat_n32n64_long_double_big, floatformats_n32n64_long):
Remove.
(mips_gdbarch_init): Use floatformats_ibm_long_double instead of
floatformats_n32n64_long.
* ppc-linux-tdep.c (ppc_linux_init_abi): Use 128-bit IBM long
double.
* doublest.c (convert_floatformat_to_doublest,
convert_doublest_to_floatformat): Handle split floating-point
formats.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Handle IBM long
double arguments.
(ppc64_sysv_abi_push_dummy_call): Likewise.
(do_ppc_sysv_return_value): Handle IBM long double return.
2007-11-08 01:08:48 +01:00
|
|
|
|
return;
|
|
|
|
|
}
|
2008-01-03 12:39:35 +01:00
|
|
|
|
floatformat_to_doublest (fmt->split_half,
|
include:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.h (struct floatformat): Add split_half field.
(floatformat_ibm_long_double): New.
libiberty:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.c (mant_bits_set): New.
(floatformat_to_double): Use it. Note no special handling of
split formats.
(floatformat_from_double): Note no special handing of split
formats.
(floatformat_ibm_long_double_is_valid,
floatformat_ibm_long_double): New.
(floatformat_ieee_single_big, floatformat_ieee_single_little,
floatformat_ieee_double_big, floatformat_ieee_double_little,
floatformat_ieee_double_littlebyte_bigword, floatformat_vax_f,
floatformat_vax_d, floatformat_vax_g, floatformat_i387_ext,
floatformat_m68881_ext, floatformat_i960_ext,
floatformat_m88110_ext, floatformat_m88110_harris_ext,
floatformat_arm_ext_big, floatformat_arm_ext_littlebyte_bigword,
floatformat_ia64_spill_big, floatformat_ia64_spill_little,
floatformat_ia64_quad_big, floatformat_ia64_quad_little): Update
for addition of split_half field.
gdb:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdbtypes.c (floatformats_ibm_long_double): New.
* gdbtypes.h (floatformats_ibm_long_double): Declare.
* ia64-tdep.c (floatformat_ia64_ext): Update for addition of
split_half field.
* mips-tdep.c (n32n64_floatformat_always_valid,
floatformat_n32n64_long_double_big, floatformats_n32n64_long):
Remove.
(mips_gdbarch_init): Use floatformats_ibm_long_double instead of
floatformats_n32n64_long.
* ppc-linux-tdep.c (ppc_linux_init_abi): Use 128-bit IBM long
double.
* doublest.c (convert_floatformat_to_doublest,
convert_doublest_to_floatformat): Handle split floating-point
formats.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Handle IBM long
double arguments.
(ppc64_sysv_abi_push_dummy_call): Likewise.
(do_ppc_sysv_return_value): Handle IBM long double return.
2007-11-08 01:08:48 +01:00
|
|
|
|
ufrom + fmt->totalsize / FLOATFORMAT_CHAR_BIT / 2,
|
|
|
|
|
&dbot);
|
2008-01-03 12:39:35 +01:00
|
|
|
|
*to = dtop + dbot;
|
include:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.h (struct floatformat): Add split_half field.
(floatformat_ibm_long_double): New.
libiberty:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.c (mant_bits_set): New.
(floatformat_to_double): Use it. Note no special handling of
split formats.
(floatformat_from_double): Note no special handing of split
formats.
(floatformat_ibm_long_double_is_valid,
floatformat_ibm_long_double): New.
(floatformat_ieee_single_big, floatformat_ieee_single_little,
floatformat_ieee_double_big, floatformat_ieee_double_little,
floatformat_ieee_double_littlebyte_bigword, floatformat_vax_f,
floatformat_vax_d, floatformat_vax_g, floatformat_i387_ext,
floatformat_m68881_ext, floatformat_i960_ext,
floatformat_m88110_ext, floatformat_m88110_harris_ext,
floatformat_arm_ext_big, floatformat_arm_ext_littlebyte_bigword,
floatformat_ia64_spill_big, floatformat_ia64_spill_little,
floatformat_ia64_quad_big, floatformat_ia64_quad_little): Update
for addition of split_half field.
gdb:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdbtypes.c (floatformats_ibm_long_double): New.
* gdbtypes.h (floatformats_ibm_long_double): Declare.
* ia64-tdep.c (floatformat_ia64_ext): Update for addition of
split_half field.
* mips-tdep.c (n32n64_floatformat_always_valid,
floatformat_n32n64_long_double_big, floatformats_n32n64_long):
Remove.
(mips_gdbarch_init): Use floatformats_ibm_long_double instead of
floatformats_n32n64_long.
* ppc-linux-tdep.c (ppc_linux_init_abi): Use 128-bit IBM long
double.
* doublest.c (convert_floatformat_to_doublest,
convert_doublest_to_floatformat): Handle split floating-point
formats.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Handle IBM long
double arguments.
(ppc64_sysv_abi_push_dummy_call): Likewise.
(do_ppc_sysv_return_value): Handle IBM long double return.
2007-11-08 01:08:48 +01:00
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
exponent = get_field (ufrom, order, fmt->totalsize, fmt->exp_start,
|
|
|
|
|
fmt->exp_len);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
/* Note that if exponent indicates a NaN, we can't really do anything useful
|
|
|
|
|
(not knowing if the host has NaN's, or how to build one). So it will
|
|
|
|
|
end up as an infinity or something close; that is OK. */
|
|
|
|
|
|
|
|
|
|
mant_bits_left = fmt->man_len;
|
|
|
|
|
mant_off = fmt->man_start;
|
|
|
|
|
dto = 0.0;
|
|
|
|
|
|
|
|
|
|
special_exponent = exponent == 0 || exponent == fmt->exp_nan;
|
|
|
|
|
|
2011-01-07 20:36:19 +01:00
|
|
|
|
/* Don't bias NaNs. Use minimum exponent for denorms. For
|
|
|
|
|
simplicity, we don't check for zero as the exponent doesn't matter.
|
|
|
|
|
Note the cast to int; exp_bias is unsigned, so it's important to
|
|
|
|
|
make sure the operation is done in signed arithmetic. */
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
if (!special_exponent)
|
|
|
|
|
exponent -= fmt->exp_bias;
|
|
|
|
|
else if (exponent == 0)
|
2003-09-15 23:33:44 +02:00
|
|
|
|
exponent = 1 - fmt->exp_bias;
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
|
|
|
|
/* Build the result algebraically. Might go infinite, underflow, etc;
|
2011-01-07 20:36:19 +01:00
|
|
|
|
who cares. */
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
|
|
|
|
/* If this format uses a hidden bit, explicitly add it in now. Otherwise,
|
|
|
|
|
increment the exponent by one to account for the integer bit. */
|
|
|
|
|
|
|
|
|
|
if (!special_exponent)
|
|
|
|
|
{
|
|
|
|
|
if (fmt->intbit == floatformat_intbit_no)
|
|
|
|
|
dto = ldexp (1.0, exponent);
|
|
|
|
|
else
|
|
|
|
|
exponent++;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
while (mant_bits_left > 0)
|
|
|
|
|
{
|
gdb: Use std::min and std::max throughout
Otherwise including <string> or some other C++ header is broken.
E.g.:
In file included from /opt/gcc/include/c++/7.0.0/bits/char_traits.h:39:0,
from /opt/gcc/include/c++/7.0.0/string:40,
from /home/pedro/gdb/mygit/cxx-convertion/src/gdb/infrun.c:68:
/opt/gcc/include/c++/7.0.0/bits/stl_algobase.h:243:56: error: macro "min" passed 3 arguments, but takes just 2
min(const _Tp& __a, const _Tp& __b, _Compare __comp)
^
/opt/gcc/include/c++/7.0.0/bits/stl_algobase.h:265:56: error: macro "max" passed 3 arguments, but takes just 2
max(const _Tp& __a, const _Tp& __b, _Compare __comp)
^
In file included from .../src/gdb/infrun.c:21:0:
To the best of my grepping abilities, I believe I adjusted all min/max
calls.
gdb/ChangeLog:
2016-09-16 Pedro Alves <palves@redhat.com>
* defs.h (min, max): Delete.
* aarch64-tdep.c: Include <algorithm> and use std::min and
std::max throughout.
* aarch64-tdep.c: Likewise.
* alpha-tdep.c: Likewise.
* amd64-tdep.c: Likewise.
* amd64-windows-tdep.c: Likewise.
* arm-tdep.c: Likewise.
* avr-tdep.c: Likewise.
* breakpoint.c: Likewise.
* btrace.c: Likewise.
* ctf.c: Likewise.
* disasm.c: Likewise.
* doublest.c: Likewise.
* dwarf2loc.c: Likewise.
* dwarf2read.c: Likewise.
* environ.c: Likewise.
* exec.c: Likewise.
* f-exp.y: Likewise.
* findcmd.c: Likewise.
* ft32-tdep.c: Likewise.
* gcore.c: Likewise.
* hppa-tdep.c: Likewise.
* i386-darwin-tdep.c: Likewise.
* i386-tdep.c: Likewise.
* linux-thread-db.c: Likewise.
* lm32-tdep.c: Likewise.
* m32r-tdep.c: Likewise.
* m88k-tdep.c: Likewise.
* memrange.c: Likewise.
* minidebug.c: Likewise.
* mips-tdep.c: Likewise.
* moxie-tdep.c: Likewise.
* nds32-tdep.c: Likewise.
* nios2-tdep.c: Likewise.
* nto-procfs.c: Likewise.
* parse.c: Likewise.
* ppc-sysv-tdep.c: Likewise.
* probe.c: Likewise.
* record-btrace.c: Likewise.
* remote.c: Likewise.
* rs6000-tdep.c: Likewise.
* rx-tdep.c: Likewise.
* s390-linux-nat.c: Likewise.
* s390-linux-tdep.c: Likewise.
* ser-tcp.c: Likewise.
* sh-tdep.c: Likewise.
* sh64-tdep.c: Likewise.
* source.c: Likewise.
* sparc-tdep.c: Likewise.
* symfile.c: Likewise.
* target-memory.c: Likewise.
* target.c: Likewise.
* tic6x-tdep.c: Likewise.
* tilegx-tdep.c: Likewise.
* tracefile-tfile.c: Likewise.
* tracepoint.c: Likewise.
* valprint.c: Likewise.
* value.c: Likewise.
* xtensa-tdep.c: Likewise.
* cli/cli-cmds.c: Likewise.
* compile/compile-object-load.c: Likewise.
2016-09-16 20:55:17 +02:00
|
|
|
|
mant_bits = std::min (mant_bits_left, 32);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
mant = get_field (ufrom, order, fmt->totalsize, mant_off, mant_bits);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
|
|
|
|
dto += ldexp ((double) mant, exponent - mant_bits);
|
|
|
|
|
exponent -= mant_bits;
|
|
|
|
|
mant_off += mant_bits;
|
|
|
|
|
mant_bits_left -= mant_bits;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Negate it if negative. */
|
2004-12-05 16:17:34 +01:00
|
|
|
|
if (get_field (ufrom, order, fmt->totalsize, fmt->sign_start, 1))
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
dto = -dto;
|
|
|
|
|
*to = dto;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Set a field which starts at START and is LEN bytes long. DATA and
|
|
|
|
|
TOTAL_LEN are the thing we are extracting it from, in byteorder ORDER. */
|
|
|
|
|
static void
|
|
|
|
|
put_field (unsigned char *data, enum floatformat_byteorders order,
|
|
|
|
|
unsigned int total_len, unsigned int start, unsigned int len,
|
|
|
|
|
unsigned long stuff_to_put)
|
|
|
|
|
{
|
|
|
|
|
unsigned int cur_byte;
|
|
|
|
|
int cur_bitshift;
|
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
/* Caller must byte-swap words before calling this routine. */
|
|
|
|
|
gdb_assert (order == floatformat_little || order == floatformat_big);
|
|
|
|
|
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
/* Start at the least significant part of the field. */
|
2004-12-05 16:17:34 +01:00
|
|
|
|
if (order == floatformat_little)
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
{
|
|
|
|
|
int excess = FLOATFORMAT_CHAR_BIT - (total_len % FLOATFORMAT_CHAR_BIT);
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
cur_byte = (total_len / FLOATFORMAT_CHAR_BIT)
|
|
|
|
|
- ((start + len + excess) / FLOATFORMAT_CHAR_BIT);
|
|
|
|
|
cur_bitshift = ((start + len + excess) % FLOATFORMAT_CHAR_BIT)
|
|
|
|
|
- FLOATFORMAT_CHAR_BIT;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
cur_byte = (start + len) / FLOATFORMAT_CHAR_BIT;
|
|
|
|
|
cur_bitshift =
|
|
|
|
|
((start + len) % FLOATFORMAT_CHAR_BIT) - FLOATFORMAT_CHAR_BIT;
|
|
|
|
|
}
|
|
|
|
|
if (cur_bitshift > -FLOATFORMAT_CHAR_BIT)
|
|
|
|
|
{
|
|
|
|
|
*(data + cur_byte) &=
|
|
|
|
|
~(((1 << ((start + len) % FLOATFORMAT_CHAR_BIT)) - 1)
|
|
|
|
|
<< (-cur_bitshift));
|
|
|
|
|
*(data + cur_byte) |=
|
|
|
|
|
(stuff_to_put & ((1 << FLOATFORMAT_CHAR_BIT) - 1)) << (-cur_bitshift);
|
|
|
|
|
}
|
|
|
|
|
cur_bitshift += FLOATFORMAT_CHAR_BIT;
|
2004-12-05 16:17:34 +01:00
|
|
|
|
if (order == floatformat_little)
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
++cur_byte;
|
|
|
|
|
else
|
|
|
|
|
--cur_byte;
|
|
|
|
|
|
|
|
|
|
/* Move towards the most significant part of the field. */
|
|
|
|
|
while (cur_bitshift < len)
|
|
|
|
|
{
|
|
|
|
|
if (len - cur_bitshift < FLOATFORMAT_CHAR_BIT)
|
|
|
|
|
{
|
|
|
|
|
/* This is the last byte. */
|
|
|
|
|
*(data + cur_byte) &=
|
|
|
|
|
~((1 << (len - cur_bitshift)) - 1);
|
|
|
|
|
*(data + cur_byte) |= (stuff_to_put >> cur_bitshift);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
*(data + cur_byte) = ((stuff_to_put >> cur_bitshift)
|
|
|
|
|
& ((1 << FLOATFORMAT_CHAR_BIT) - 1));
|
|
|
|
|
cur_bitshift += FLOATFORMAT_CHAR_BIT;
|
2004-12-05 16:17:34 +01:00
|
|
|
|
if (order == floatformat_little)
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
++cur_byte;
|
|
|
|
|
else
|
|
|
|
|
--cur_byte;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2005-11-01 00:35:52 +01:00
|
|
|
|
/* The converse: convert the DOUBLEST *FROM to an extended float and
|
|
|
|
|
store where TO points. Neither FROM nor TO have any alignment
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
restrictions. */
|
|
|
|
|
|
2001-08-12 03:45:49 +02:00
|
|
|
|
static void
|
2013-12-29 10:39:28 +01:00
|
|
|
|
convert_doublest_to_floatformat (const struct floatformat *fmt,
|
2005-11-01 00:35:52 +01:00
|
|
|
|
const DOUBLEST *from, void *to)
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
{
|
|
|
|
|
DOUBLEST dfrom;
|
|
|
|
|
int exponent;
|
|
|
|
|
DOUBLEST mant;
|
|
|
|
|
unsigned int mant_bits, mant_off;
|
|
|
|
|
int mant_bits_left;
|
|
|
|
|
unsigned char *uto = (unsigned char *) to;
|
2004-12-05 16:17:34 +01:00
|
|
|
|
enum floatformat_byteorders order = fmt->byteorder;
|
2005-11-01 00:35:52 +01:00
|
|
|
|
unsigned char newto[FLOATFORMAT_LARGEST_BYTES];
|
2004-12-05 16:17:34 +01:00
|
|
|
|
|
2005-11-01 00:35:52 +01:00
|
|
|
|
if (order != floatformat_little)
|
2004-12-05 16:17:34 +01:00
|
|
|
|
order = floatformat_big;
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
2005-11-01 00:35:52 +01:00
|
|
|
|
if (order != fmt->byteorder)
|
|
|
|
|
uto = newto;
|
|
|
|
|
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
memcpy (&dfrom, from, sizeof (dfrom));
|
2017-04-24 22:29:12 +02:00
|
|
|
|
memset (uto, 0, floatformat_totalsize_bytes (fmt));
|
include:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.h (struct floatformat): Add split_half field.
(floatformat_ibm_long_double): New.
libiberty:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.c (mant_bits_set): New.
(floatformat_to_double): Use it. Note no special handling of
split formats.
(floatformat_from_double): Note no special handing of split
formats.
(floatformat_ibm_long_double_is_valid,
floatformat_ibm_long_double): New.
(floatformat_ieee_single_big, floatformat_ieee_single_little,
floatformat_ieee_double_big, floatformat_ieee_double_little,
floatformat_ieee_double_littlebyte_bigword, floatformat_vax_f,
floatformat_vax_d, floatformat_vax_g, floatformat_i387_ext,
floatformat_m68881_ext, floatformat_i960_ext,
floatformat_m88110_ext, floatformat_m88110_harris_ext,
floatformat_arm_ext_big, floatformat_arm_ext_littlebyte_bigword,
floatformat_ia64_spill_big, floatformat_ia64_spill_little,
floatformat_ia64_quad_big, floatformat_ia64_quad_little): Update
for addition of split_half field.
gdb:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdbtypes.c (floatformats_ibm_long_double): New.
* gdbtypes.h (floatformats_ibm_long_double): Declare.
* ia64-tdep.c (floatformat_ia64_ext): Update for addition of
split_half field.
* mips-tdep.c (n32n64_floatformat_always_valid,
floatformat_n32n64_long_double_big, floatformats_n32n64_long):
Remove.
(mips_gdbarch_init): Use floatformats_ibm_long_double instead of
floatformats_n32n64_long.
* ppc-linux-tdep.c (ppc_linux_init_abi): Use 128-bit IBM long
double.
* doublest.c (convert_floatformat_to_doublest,
convert_doublest_to_floatformat): Handle split floating-point
formats.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Handle IBM long
double arguments.
(ppc64_sysv_abi_push_dummy_call): Likewise.
(do_ppc_sysv_return_value): Handle IBM long double return.
2007-11-08 01:08:48 +01:00
|
|
|
|
|
|
|
|
|
if (fmt->split_half)
|
|
|
|
|
{
|
|
|
|
|
/* Use static volatile to ensure that any excess precision is
|
|
|
|
|
removed via storing in memory, and so the top half really is
|
|
|
|
|
the result of converting to double. */
|
|
|
|
|
static volatile double dtop, dbot;
|
2008-01-03 12:39:35 +01:00
|
|
|
|
DOUBLEST dtopnv, dbotnv;
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
include:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.h (struct floatformat): Add split_half field.
(floatformat_ibm_long_double): New.
libiberty:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.c (mant_bits_set): New.
(floatformat_to_double): Use it. Note no special handling of
split formats.
(floatformat_from_double): Note no special handing of split
formats.
(floatformat_ibm_long_double_is_valid,
floatformat_ibm_long_double): New.
(floatformat_ieee_single_big, floatformat_ieee_single_little,
floatformat_ieee_double_big, floatformat_ieee_double_little,
floatformat_ieee_double_littlebyte_bigword, floatformat_vax_f,
floatformat_vax_d, floatformat_vax_g, floatformat_i387_ext,
floatformat_m68881_ext, floatformat_i960_ext,
floatformat_m88110_ext, floatformat_m88110_harris_ext,
floatformat_arm_ext_big, floatformat_arm_ext_littlebyte_bigword,
floatformat_ia64_spill_big, floatformat_ia64_spill_little,
floatformat_ia64_quad_big, floatformat_ia64_quad_little): Update
for addition of split_half field.
gdb:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdbtypes.c (floatformats_ibm_long_double): New.
* gdbtypes.h (floatformats_ibm_long_double): Declare.
* ia64-tdep.c (floatformat_ia64_ext): Update for addition of
split_half field.
* mips-tdep.c (n32n64_floatformat_always_valid,
floatformat_n32n64_long_double_big, floatformats_n32n64_long):
Remove.
(mips_gdbarch_init): Use floatformats_ibm_long_double instead of
floatformats_n32n64_long.
* ppc-linux-tdep.c (ppc_linux_init_abi): Use 128-bit IBM long
double.
* doublest.c (convert_floatformat_to_doublest,
convert_doublest_to_floatformat): Handle split floating-point
formats.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Handle IBM long
double arguments.
(ppc64_sysv_abi_push_dummy_call): Likewise.
(do_ppc_sysv_return_value): Handle IBM long double return.
2007-11-08 01:08:48 +01:00
|
|
|
|
dtop = (double) dfrom;
|
|
|
|
|
/* If the rounded top half is Inf, the bottom must be 0 not NaN
|
|
|
|
|
or Inf. */
|
|
|
|
|
if (dtop + dtop == dtop && dtop != 0.0)
|
|
|
|
|
dbot = 0.0;
|
|
|
|
|
else
|
|
|
|
|
dbot = (double) (dfrom - (DOUBLEST) dtop);
|
|
|
|
|
dtopnv = dtop;
|
|
|
|
|
dbotnv = dbot;
|
2008-01-03 12:39:35 +01:00
|
|
|
|
floatformat_from_doublest (fmt->split_half, &dtopnv, uto);
|
|
|
|
|
floatformat_from_doublest (fmt->split_half, &dbotnv,
|
include:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.h (struct floatformat): Add split_half field.
(floatformat_ibm_long_double): New.
libiberty:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* floatformat.c (mant_bits_set): New.
(floatformat_to_double): Use it. Note no special handling of
split formats.
(floatformat_from_double): Note no special handing of split
formats.
(floatformat_ibm_long_double_is_valid,
floatformat_ibm_long_double): New.
(floatformat_ieee_single_big, floatformat_ieee_single_little,
floatformat_ieee_double_big, floatformat_ieee_double_little,
floatformat_ieee_double_littlebyte_bigword, floatformat_vax_f,
floatformat_vax_d, floatformat_vax_g, floatformat_i387_ext,
floatformat_m68881_ext, floatformat_i960_ext,
floatformat_m88110_ext, floatformat_m88110_harris_ext,
floatformat_arm_ext_big, floatformat_arm_ext_littlebyte_bigword,
floatformat_ia64_spill_big, floatformat_ia64_spill_little,
floatformat_ia64_quad_big, floatformat_ia64_quad_little): Update
for addition of split_half field.
gdb:
2007-11-07 Joseph Myers <joseph@codesourcery.com>
Daniel Jacobowitz <dan@codesourcery.com>
* gdbtypes.c (floatformats_ibm_long_double): New.
* gdbtypes.h (floatformats_ibm_long_double): Declare.
* ia64-tdep.c (floatformat_ia64_ext): Update for addition of
split_half field.
* mips-tdep.c (n32n64_floatformat_always_valid,
floatformat_n32n64_long_double_big, floatformats_n32n64_long):
Remove.
(mips_gdbarch_init): Use floatformats_ibm_long_double instead of
floatformats_n32n64_long.
* ppc-linux-tdep.c (ppc_linux_init_abi): Use 128-bit IBM long
double.
* doublest.c (convert_floatformat_to_doublest,
convert_doublest_to_floatformat): Handle split floating-point
formats.
* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Handle IBM long
double arguments.
(ppc64_sysv_abi_push_dummy_call): Likewise.
(do_ppc_sysv_return_value): Handle IBM long double return.
2007-11-08 01:08:48 +01:00
|
|
|
|
(uto
|
|
|
|
|
+ fmt->totalsize / FLOATFORMAT_CHAR_BIT / 2));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
if (dfrom == 0)
|
|
|
|
|
return; /* Result is zero */
|
|
|
|
|
if (dfrom != dfrom) /* Result is NaN */
|
|
|
|
|
{
|
|
|
|
|
/* From is NaN */
|
2004-12-05 16:17:34 +01:00
|
|
|
|
put_field (uto, order, fmt->totalsize, fmt->exp_start,
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
fmt->exp_len, fmt->exp_nan);
|
2011-01-07 20:36:19 +01:00
|
|
|
|
/* Be sure it's not infinity, but NaN value is irrel. */
|
2004-12-05 16:17:34 +01:00
|
|
|
|
put_field (uto, order, fmt->totalsize, fmt->man_start,
|
2011-08-01 18:02:03 +02:00
|
|
|
|
fmt->man_len, 1);
|
2004-12-05 16:17:34 +01:00
|
|
|
|
goto finalize_byteorder;
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If negative, set the sign bit. */
|
|
|
|
|
if (dfrom < 0)
|
|
|
|
|
{
|
2004-12-05 16:17:34 +01:00
|
|
|
|
put_field (uto, order, fmt->totalsize, fmt->sign_start, 1, 1);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
dfrom = -dfrom;
|
|
|
|
|
}
|
|
|
|
|
|
2011-01-07 20:36:19 +01:00
|
|
|
|
if (dfrom + dfrom == dfrom && dfrom != 0.0) /* Result is Infinity. */
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
{
|
|
|
|
|
/* Infinity exponent is same as NaN's. */
|
2004-12-05 16:17:34 +01:00
|
|
|
|
put_field (uto, order, fmt->totalsize, fmt->exp_start,
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
fmt->exp_len, fmt->exp_nan);
|
|
|
|
|
/* Infinity mantissa is all zeroes. */
|
2004-12-05 16:17:34 +01:00
|
|
|
|
put_field (uto, order, fmt->totalsize, fmt->man_start,
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
fmt->man_len, 0);
|
2004-12-05 16:17:34 +01:00
|
|
|
|
goto finalize_byteorder;
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef HAVE_LONG_DOUBLE
|
2013-06-21 18:24:14 +02:00
|
|
|
|
mant = frexpl (dfrom, &exponent);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
#else
|
|
|
|
|
mant = frexp (dfrom, &exponent);
|
|
|
|
|
#endif
|
|
|
|
|
|
2012-07-25 20:27:21 +02:00
|
|
|
|
if (exponent + fmt->exp_bias <= 0)
|
|
|
|
|
{
|
|
|
|
|
/* The value is too small to be expressed in the destination
|
|
|
|
|
type (not enough bits in the exponent. Treat as 0. */
|
|
|
|
|
put_field (uto, order, fmt->totalsize, fmt->exp_start,
|
|
|
|
|
fmt->exp_len, 0);
|
|
|
|
|
put_field (uto, order, fmt->totalsize, fmt->man_start,
|
|
|
|
|
fmt->man_len, 0);
|
|
|
|
|
goto finalize_byteorder;
|
|
|
|
|
}
|
|
|
|
|
|
2012-10-24 20:11:21 +02:00
|
|
|
|
if (exponent + fmt->exp_bias >= (1 << fmt->exp_len))
|
2012-07-25 20:27:21 +02:00
|
|
|
|
{
|
|
|
|
|
/* The value is too large to fit into the destination.
|
|
|
|
|
Treat as infinity. */
|
|
|
|
|
put_field (uto, order, fmt->totalsize, fmt->exp_start,
|
|
|
|
|
fmt->exp_len, fmt->exp_nan);
|
|
|
|
|
put_field (uto, order, fmt->totalsize, fmt->man_start,
|
|
|
|
|
fmt->man_len, 0);
|
|
|
|
|
goto finalize_byteorder;
|
|
|
|
|
}
|
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
put_field (uto, order, fmt->totalsize, fmt->exp_start, fmt->exp_len,
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
exponent + fmt->exp_bias - 1);
|
|
|
|
|
|
|
|
|
|
mant_bits_left = fmt->man_len;
|
|
|
|
|
mant_off = fmt->man_start;
|
|
|
|
|
while (mant_bits_left > 0)
|
|
|
|
|
{
|
|
|
|
|
unsigned long mant_long;
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
mant_bits = mant_bits_left < 32 ? mant_bits_left : 32;
|
|
|
|
|
|
|
|
|
|
mant *= 4294967296.0;
|
|
|
|
|
mant_long = ((unsigned long) mant) & 0xffffffffL;
|
|
|
|
|
mant -= mant_long;
|
|
|
|
|
|
|
|
|
|
/* If the integer bit is implicit, then we need to discard it.
|
|
|
|
|
If we are discarding a zero, we should be (but are not) creating
|
|
|
|
|
a denormalized number which means adjusting the exponent
|
|
|
|
|
(I think). */
|
|
|
|
|
if (mant_bits_left == fmt->man_len
|
|
|
|
|
&& fmt->intbit == floatformat_intbit_no)
|
|
|
|
|
{
|
|
|
|
|
mant_long <<= 1;
|
|
|
|
|
mant_long &= 0xffffffffL;
|
2003-06-12 01:34:53 +02:00
|
|
|
|
/* If we are processing the top 32 mantissa bits of a doublest
|
|
|
|
|
so as to convert to a float value with implied integer bit,
|
|
|
|
|
we will only be putting 31 of those 32 bits into the
|
|
|
|
|
final value due to the discarding of the top bit. In the
|
|
|
|
|
case of a small float value where the number of mantissa
|
|
|
|
|
bits is less than 32, discarding the top bit does not alter
|
|
|
|
|
the number of bits we will be adding to the result. */
|
|
|
|
|
if (mant_bits == 32)
|
|
|
|
|
mant_bits -= 1;
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (mant_bits < 32)
|
|
|
|
|
{
|
|
|
|
|
/* The bits we want are in the most significant MANT_BITS bits of
|
|
|
|
|
mant_long. Move them to the least significant. */
|
|
|
|
|
mant_long >>= 32 - mant_bits;
|
|
|
|
|
}
|
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
put_field (uto, order, fmt->totalsize,
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
mant_off, mant_bits, mant_long);
|
|
|
|
|
mant_off += mant_bits;
|
|
|
|
|
mant_bits_left -= mant_bits;
|
|
|
|
|
}
|
2004-12-05 16:17:34 +01:00
|
|
|
|
|
|
|
|
|
finalize_byteorder:
|
|
|
|
|
/* Do we need to byte-swap the words in the result? */
|
|
|
|
|
if (order != fmt->byteorder)
|
2005-11-01 00:35:52 +01:00
|
|
|
|
floatformat_normalize_byteorder (fmt, newto, to);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Check if VAL (which is assumed to be a floating point number whose
|
|
|
|
|
format is described by FMT) is negative. */
|
|
|
|
|
|
|
|
|
|
int
|
2005-01-28 07:06:27 +01:00
|
|
|
|
floatformat_is_negative (const struct floatformat *fmt,
|
|
|
|
|
const bfd_byte *uval)
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
{
|
2004-12-05 16:17:34 +01:00
|
|
|
|
enum floatformat_byteorders order;
|
|
|
|
|
unsigned char newfrom[FLOATFORMAT_LARGEST_BYTES];
|
|
|
|
|
|
2002-01-22 20:57:40 +01:00
|
|
|
|
gdb_assert (fmt != NULL);
|
2004-12-05 16:17:34 +01:00
|
|
|
|
gdb_assert (fmt->totalsize
|
|
|
|
|
<= FLOATFORMAT_LARGEST_BYTES * FLOATFORMAT_CHAR_BIT);
|
|
|
|
|
|
2013-08-20 08:42:19 +02:00
|
|
|
|
/* An IBM long double (a two element array of double) always takes the
|
|
|
|
|
sign of the first double. */
|
|
|
|
|
if (fmt->split_half)
|
|
|
|
|
fmt = fmt->split_half;
|
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
order = floatformat_normalize_byteorder (fmt, uval, newfrom);
|
|
|
|
|
|
|
|
|
|
if (order != fmt->byteorder)
|
|
|
|
|
uval = newfrom;
|
|
|
|
|
|
|
|
|
|
return get_field (uval, order, fmt->totalsize, fmt->sign_start, 1);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Check if VAL is "not a number" (NaN) for FMT. */
|
|
|
|
|
|
2007-03-30 16:31:44 +02:00
|
|
|
|
enum float_kind
|
|
|
|
|
floatformat_classify (const struct floatformat *fmt,
|
|
|
|
|
const bfd_byte *uval)
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
{
|
|
|
|
|
long exponent;
|
|
|
|
|
unsigned long mant;
|
|
|
|
|
unsigned int mant_bits, mant_off;
|
|
|
|
|
int mant_bits_left;
|
2004-12-05 16:17:34 +01:00
|
|
|
|
enum floatformat_byteorders order;
|
|
|
|
|
unsigned char newfrom[FLOATFORMAT_LARGEST_BYTES];
|
2007-03-30 16:31:44 +02:00
|
|
|
|
int mant_zero;
|
2004-12-05 16:17:34 +01:00
|
|
|
|
|
2002-01-22 20:57:40 +01:00
|
|
|
|
gdb_assert (fmt != NULL);
|
2004-12-05 16:17:34 +01:00
|
|
|
|
gdb_assert (fmt->totalsize
|
|
|
|
|
<= FLOATFORMAT_LARGEST_BYTES * FLOATFORMAT_CHAR_BIT);
|
|
|
|
|
|
2013-08-20 08:42:19 +02:00
|
|
|
|
/* An IBM long double (a two element array of double) can be classified
|
|
|
|
|
by looking at the first double. inf and nan are specified as
|
|
|
|
|
ignoring the second double. zero and subnormal will always have
|
|
|
|
|
the second double 0.0 if the long double is correctly rounded. */
|
|
|
|
|
if (fmt->split_half)
|
|
|
|
|
fmt = fmt->split_half;
|
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
order = floatformat_normalize_byteorder (fmt, uval, newfrom);
|
|
|
|
|
|
|
|
|
|
if (order != fmt->byteorder)
|
|
|
|
|
uval = newfrom;
|
2002-01-22 20:57:40 +01:00
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
exponent = get_field (uval, order, fmt->totalsize, fmt->exp_start,
|
|
|
|
|
fmt->exp_len);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
|
|
|
|
mant_bits_left = fmt->man_len;
|
|
|
|
|
mant_off = fmt->man_start;
|
|
|
|
|
|
2007-03-30 16:31:44 +02:00
|
|
|
|
mant_zero = 1;
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
while (mant_bits_left > 0)
|
|
|
|
|
{
|
gdb: Use std::min and std::max throughout
Otherwise including <string> or some other C++ header is broken.
E.g.:
In file included from /opt/gcc/include/c++/7.0.0/bits/char_traits.h:39:0,
from /opt/gcc/include/c++/7.0.0/string:40,
from /home/pedro/gdb/mygit/cxx-convertion/src/gdb/infrun.c:68:
/opt/gcc/include/c++/7.0.0/bits/stl_algobase.h:243:56: error: macro "min" passed 3 arguments, but takes just 2
min(const _Tp& __a, const _Tp& __b, _Compare __comp)
^
/opt/gcc/include/c++/7.0.0/bits/stl_algobase.h:265:56: error: macro "max" passed 3 arguments, but takes just 2
max(const _Tp& __a, const _Tp& __b, _Compare __comp)
^
In file included from .../src/gdb/infrun.c:21:0:
To the best of my grepping abilities, I believe I adjusted all min/max
calls.
gdb/ChangeLog:
2016-09-16 Pedro Alves <palves@redhat.com>
* defs.h (min, max): Delete.
* aarch64-tdep.c: Include <algorithm> and use std::min and
std::max throughout.
* aarch64-tdep.c: Likewise.
* alpha-tdep.c: Likewise.
* amd64-tdep.c: Likewise.
* amd64-windows-tdep.c: Likewise.
* arm-tdep.c: Likewise.
* avr-tdep.c: Likewise.
* breakpoint.c: Likewise.
* btrace.c: Likewise.
* ctf.c: Likewise.
* disasm.c: Likewise.
* doublest.c: Likewise.
* dwarf2loc.c: Likewise.
* dwarf2read.c: Likewise.
* environ.c: Likewise.
* exec.c: Likewise.
* f-exp.y: Likewise.
* findcmd.c: Likewise.
* ft32-tdep.c: Likewise.
* gcore.c: Likewise.
* hppa-tdep.c: Likewise.
* i386-darwin-tdep.c: Likewise.
* i386-tdep.c: Likewise.
* linux-thread-db.c: Likewise.
* lm32-tdep.c: Likewise.
* m32r-tdep.c: Likewise.
* m88k-tdep.c: Likewise.
* memrange.c: Likewise.
* minidebug.c: Likewise.
* mips-tdep.c: Likewise.
* moxie-tdep.c: Likewise.
* nds32-tdep.c: Likewise.
* nios2-tdep.c: Likewise.
* nto-procfs.c: Likewise.
* parse.c: Likewise.
* ppc-sysv-tdep.c: Likewise.
* probe.c: Likewise.
* record-btrace.c: Likewise.
* remote.c: Likewise.
* rs6000-tdep.c: Likewise.
* rx-tdep.c: Likewise.
* s390-linux-nat.c: Likewise.
* s390-linux-tdep.c: Likewise.
* ser-tcp.c: Likewise.
* sh-tdep.c: Likewise.
* sh64-tdep.c: Likewise.
* source.c: Likewise.
* sparc-tdep.c: Likewise.
* symfile.c: Likewise.
* target-memory.c: Likewise.
* target.c: Likewise.
* tic6x-tdep.c: Likewise.
* tilegx-tdep.c: Likewise.
* tracefile-tfile.c: Likewise.
* tracepoint.c: Likewise.
* valprint.c: Likewise.
* value.c: Likewise.
* xtensa-tdep.c: Likewise.
* cli/cli-cmds.c: Likewise.
* compile/compile-object-load.c: Likewise.
2016-09-16 20:55:17 +02:00
|
|
|
|
mant_bits = std::min (mant_bits_left, 32);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
mant = get_field (uval, order, fmt->totalsize, mant_off, mant_bits);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
|
|
|
|
/* If there is an explicit integer bit, mask it off. */
|
|
|
|
|
if (mant_off == fmt->man_start
|
|
|
|
|
&& fmt->intbit == floatformat_intbit_yes)
|
|
|
|
|
mant &= ~(1 << (mant_bits - 1));
|
|
|
|
|
|
|
|
|
|
if (mant)
|
2007-03-30 16:31:44 +02:00
|
|
|
|
{
|
|
|
|
|
mant_zero = 0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
|
|
|
|
mant_off += mant_bits;
|
|
|
|
|
mant_bits_left -= mant_bits;
|
|
|
|
|
}
|
|
|
|
|
|
2007-03-30 16:31:44 +02:00
|
|
|
|
/* If exp_nan is not set, assume that inf, NaN, and subnormals are not
|
|
|
|
|
supported. */
|
|
|
|
|
if (! fmt->exp_nan)
|
|
|
|
|
{
|
|
|
|
|
if (mant_zero)
|
|
|
|
|
return float_zero;
|
|
|
|
|
else
|
|
|
|
|
return float_normal;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (exponent == 0 && !mant_zero)
|
|
|
|
|
return float_subnormal;
|
|
|
|
|
|
|
|
|
|
if (exponent == fmt->exp_nan)
|
|
|
|
|
{
|
|
|
|
|
if (mant_zero)
|
|
|
|
|
return float_infinite;
|
|
|
|
|
else
|
|
|
|
|
return float_nan;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (mant_zero)
|
|
|
|
|
return float_zero;
|
|
|
|
|
|
|
|
|
|
return float_normal;
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Convert the mantissa of VAL (which is assumed to be a floating
|
|
|
|
|
point number whose format is described by FMT) into a hexadecimal
|
|
|
|
|
and store it in a static string. Return a pointer to that string. */
|
|
|
|
|
|
2005-01-28 07:06:27 +01:00
|
|
|
|
const char *
|
|
|
|
|
floatformat_mantissa (const struct floatformat *fmt,
|
|
|
|
|
const bfd_byte *val)
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
{
|
|
|
|
|
unsigned char *uval = (unsigned char *) val;
|
|
|
|
|
unsigned long mant;
|
|
|
|
|
unsigned int mant_bits, mant_off;
|
|
|
|
|
int mant_bits_left;
|
|
|
|
|
static char res[50];
|
|
|
|
|
char buf[9];
|
2005-08-21 18:53:05 +02:00
|
|
|
|
int len;
|
2004-12-05 16:17:34 +01:00
|
|
|
|
enum floatformat_byteorders order;
|
|
|
|
|
unsigned char newfrom[FLOATFORMAT_LARGEST_BYTES];
|
|
|
|
|
|
|
|
|
|
gdb_assert (fmt != NULL);
|
|
|
|
|
gdb_assert (fmt->totalsize
|
|
|
|
|
<= FLOATFORMAT_LARGEST_BYTES * FLOATFORMAT_CHAR_BIT);
|
|
|
|
|
|
2013-08-20 08:42:19 +02:00
|
|
|
|
/* For IBM long double (a two element array of double), return the
|
|
|
|
|
mantissa of the first double. The problem with returning the
|
|
|
|
|
actual mantissa from both doubles is that there can be an
|
|
|
|
|
arbitrary number of implied 0's or 1's between the mantissas
|
|
|
|
|
of the first and second double. In any case, this function
|
|
|
|
|
is only used for dumping out nans, and a nan is specified to
|
|
|
|
|
ignore the value in the second double. */
|
|
|
|
|
if (fmt->split_half)
|
|
|
|
|
fmt = fmt->split_half;
|
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
order = floatformat_normalize_byteorder (fmt, uval, newfrom);
|
|
|
|
|
|
|
|
|
|
if (order != fmt->byteorder)
|
|
|
|
|
uval = newfrom;
|
|
|
|
|
|
|
|
|
|
if (! fmt->exp_nan)
|
|
|
|
|
return 0;
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
|
|
|
|
/* Make sure we have enough room to store the mantissa. */
|
|
|
|
|
gdb_assert (sizeof res > ((fmt->man_len + 7) / 8) * 2);
|
|
|
|
|
|
|
|
|
|
mant_off = fmt->man_start;
|
|
|
|
|
mant_bits_left = fmt->man_len;
|
|
|
|
|
mant_bits = (mant_bits_left % 32) > 0 ? mant_bits_left % 32 : 32;
|
|
|
|
|
|
2004-12-05 16:17:34 +01:00
|
|
|
|
mant = get_field (uval, order, fmt->totalsize, mant_off, mant_bits);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
2005-08-21 18:53:05 +02:00
|
|
|
|
len = xsnprintf (res, sizeof res, "%lx", mant);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
|
|
|
|
mant_off += mant_bits;
|
|
|
|
|
mant_bits_left -= mant_bits;
|
2005-08-21 18:53:05 +02:00
|
|
|
|
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
while (mant_bits_left > 0)
|
|
|
|
|
{
|
2004-12-05 16:17:34 +01:00
|
|
|
|
mant = get_field (uval, order, fmt->totalsize, mant_off, 32);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
2005-08-21 18:53:05 +02:00
|
|
|
|
xsnprintf (buf, sizeof buf, "%08lx", mant);
|
|
|
|
|
gdb_assert (len + strlen (buf) <= sizeof res);
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
strcat (res, buf);
|
|
|
|
|
|
|
|
|
|
mant_off += 32;
|
|
|
|
|
mant_bits_left -= 32;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return res;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2001-08-12 03:45:49 +02:00
|
|
|
|
/* Convert TO/FROM target to the hosts DOUBLEST floating-point format.
|
|
|
|
|
|
|
|
|
|
If the host and target formats agree, we just copy the raw data
|
|
|
|
|
into the appropriate type of variable and return, letting the host
|
|
|
|
|
increase precision as necessary. Otherwise, we call the conversion
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
routine and let it do the dirty work. Note that even if the target
|
|
|
|
|
and host floating-point formats match, the length of the types
|
|
|
|
|
might still be different, so the conversion routines must make sure
|
|
|
|
|
to not overrun any buffers. For example, on x86, long double is
|
|
|
|
|
the 80-bit extended precision type on both 32-bit and 64-bit ABIs,
|
|
|
|
|
but by default it is stored as 12 bytes on 32-bit, and 16 bytes on
|
|
|
|
|
64-bit, for alignment reasons. See comment in store_typed_floating
|
|
|
|
|
for a discussion about zeroing out remaining bytes in the target
|
|
|
|
|
buffer. */
|
2001-08-12 03:45:49 +02:00
|
|
|
|
|
2004-07-29 21:33:22 +02:00
|
|
|
|
static const struct floatformat *host_float_format = GDB_HOST_FLOAT_FORMAT;
|
|
|
|
|
static const struct floatformat *host_double_format = GDB_HOST_DOUBLE_FORMAT;
|
2011-01-05 23:22:53 +01:00
|
|
|
|
static const struct floatformat *host_long_double_format
|
|
|
|
|
= GDB_HOST_LONG_DOUBLE_FORMAT;
|
2001-08-12 03:45:49 +02:00
|
|
|
|
|
2016-03-09 03:29:39 +01:00
|
|
|
|
/* See doublest.h. */
|
|
|
|
|
|
|
|
|
|
size_t
|
|
|
|
|
floatformat_totalsize_bytes (const struct floatformat *fmt)
|
|
|
|
|
{
|
|
|
|
|
return ((fmt->totalsize + FLOATFORMAT_CHAR_BIT - 1)
|
|
|
|
|
/ FLOATFORMAT_CHAR_BIT);
|
|
|
|
|
}
|
|
|
|
|
|
2001-08-12 03:45:49 +02:00
|
|
|
|
void
|
|
|
|
|
floatformat_to_doublest (const struct floatformat *fmt,
|
|
|
|
|
const void *in, DOUBLEST *out)
|
|
|
|
|
{
|
|
|
|
|
gdb_assert (fmt != NULL);
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
|
2001-08-12 03:45:49 +02:00
|
|
|
|
if (fmt == host_float_format)
|
|
|
|
|
{
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
float val = 0;
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
memcpy (&val, in, floatformat_totalsize_bytes (fmt));
|
2001-08-12 03:45:49 +02:00
|
|
|
|
*out = val;
|
|
|
|
|
}
|
|
|
|
|
else if (fmt == host_double_format)
|
|
|
|
|
{
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
double val = 0;
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
memcpy (&val, in, floatformat_totalsize_bytes (fmt));
|
2001-08-12 03:45:49 +02:00
|
|
|
|
*out = val;
|
|
|
|
|
}
|
|
|
|
|
else if (fmt == host_long_double_format)
|
|
|
|
|
{
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
long double val = 0;
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
memcpy (&val, in, floatformat_totalsize_bytes (fmt));
|
2001-08-12 03:45:49 +02:00
|
|
|
|
*out = val;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
convert_floatformat_to_doublest (fmt, in, out);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
floatformat_from_doublest (const struct floatformat *fmt,
|
|
|
|
|
const DOUBLEST *in, void *out)
|
|
|
|
|
{
|
|
|
|
|
gdb_assert (fmt != NULL);
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
|
2001-08-12 03:45:49 +02:00
|
|
|
|
if (fmt == host_float_format)
|
|
|
|
|
{
|
|
|
|
|
float val = *in;
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
memcpy (out, &val, floatformat_totalsize_bytes (fmt));
|
2001-08-12 03:45:49 +02:00
|
|
|
|
}
|
|
|
|
|
else if (fmt == host_double_format)
|
|
|
|
|
{
|
|
|
|
|
double val = *in;
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
memcpy (out, &val, floatformat_totalsize_bytes (fmt));
|
2001-08-12 03:45:49 +02:00
|
|
|
|
}
|
|
|
|
|
else if (fmt == host_long_double_format)
|
|
|
|
|
{
|
|
|
|
|
long double val = *in;
|
2010-05-14 19:53:16 +02:00
|
|
|
|
|
Fix floating conversion buffer overrun when host/target format matches
Running the testsuite with a gdb configured with --enable-libmcheck
reveals a problem:
(gdb) ptype 3 * 2.0
type = <12-byte float>
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.ada/ptype_arith_binop.exp: ptype 3 * 2.0
(gdb) PASS: gdb.dlang/expression.exp: ptype 0x1.FFFFFFFFFFFFFp1023
ptype 0x1p-52L
type = real
memory clobbered past end of allocated block
ERROR: Process no longer exists
UNRESOLVED: gdb.dlang/expression.exp: ptype 0x1p-52L
Even though this shows up with Ada and D, it's easy to reproduce in C
too. We just need to print a long double, when the current arch is
32-bit, which is the default when gdb starts up:
$ ./gdb -q -ex "ptype 1.0L"
type = long double
memory clobbered past end of allocated block
Aborted (core dumped)
Valgrind shows:
==22159== Invalid write of size 8
==22159== at 0x8464A9: floatformat_from_doublest (doublest.c:756)
==22159== by 0x846822: store_typed_floating (doublest.c:867)
==22159== by 0x6A7959: value_from_double (value.c:3662)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159== by 0x5F267B: do_cfunc (cli-decode.c:105)
==22159== by 0x5F5618: cmd_func (cli-decode.c:1885)
==22159== by 0x83622A: execute_command (top.c:475)
==22159== Address 0x8c6cb28 is 8 bytes inside a block of size 12 alloc'd
==22159== at 0x4C2AA98: calloc (vg_replace_malloc.c:711)
==22159== by 0x87384A: xcalloc (common-utils.c:83)
==22159== by 0x873889: xzalloc (common-utils.c:93)
==22159== by 0x6A34CB: allocate_value_contents (value.c:1036)
==22159== by 0x6A3501: allocate_value (value.c:1047)
==22159== by 0x6A790A: value_from_double (value.c:3656)
==22159== by 0x6A9F2D: evaluate_subexp_standard (eval.c:745)
==22159== by 0x7F31AF: evaluate_subexp_c (c-lang.c:716)
==22159== by 0x6A8986: evaluate_subexp (eval.c:79)
==22159== by 0x6A8BA3: evaluate_type (eval.c:174)
==22159== by 0x817CCF: whatis_exp (typeprint.c:456)
==22159== by 0x817EAA: ptype_command (typeprint.c:508)
==22159==
type = long double
(gdb)
Even if the target and host floating-point formats match, the length
of the types might still be different. On x86, long double is the
80-bit extended precision type on both 32-bit and 64-bit ABIs, but by
default it is stored as 12 bytes on 32-bit, and 16 bytes on 64-bit,
for alignment reasons. Several places in doublest.c already consider
this, but floatformat_to_doublest and floatformat_from_doublest miss
it. E.g., convert_typed_floating and store_typed_floating,
Tested on x86-64 Fedora 23 with --enable-libmcheck, where it fixes the
crashed above.
gdb/ChangeLog:
2016-03-09 Pedro Alves <palves@redhat.com>
* doublest.c: Extend comments.
(floatformat_to_doublest, floatformat_from_doublest): Copy the
floatformat's total size, not the host type's size.
2016-03-09 04:01:06 +01:00
|
|
|
|
memcpy (out, &val, floatformat_totalsize_bytes (fmt));
|
2001-08-12 03:45:49 +02:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
convert_doublest_to_floatformat (fmt, in, out);
|
|
|
|
|
}
|
* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 20:39:27 +02:00
|
|
|
|
|
2001-08-12 03:45:49 +02:00
|
|
|
|
|
2001-10-28 23:06:27 +01:00
|
|
|
|
/* Extract a floating-point number of type TYPE from a target-order
|
|
|
|
|
byte-stream at ADDR. Returns the value as type DOUBLEST. */
|
2001-09-24 19:16:53 +02:00
|
|
|
|
|
|
|
|
|
DOUBLEST
|
|
|
|
|
extract_typed_floating (const void *addr, const struct type *type)
|
|
|
|
|
{
|
2009-05-18 15:43:35 +02:00
|
|
|
|
const struct floatformat *fmt = floatformat_from_type (type);
|
2001-09-24 19:16:53 +02:00
|
|
|
|
DOUBLEST retval;
|
2001-10-28 23:06:27 +01:00
|
|
|
|
|
2009-05-18 15:43:35 +02:00
|
|
|
|
floatformat_to_doublest (fmt, addr, &retval);
|
2001-09-24 19:16:53 +02:00
|
|
|
|
return retval;
|
|
|
|
|
}
|
|
|
|
|
|
2001-10-28 23:06:27 +01:00
|
|
|
|
/* Store VAL as a floating-point number of type TYPE to a target-order
|
|
|
|
|
byte-stream at ADDR. */
|
|
|
|
|
|
2001-09-24 19:16:53 +02:00
|
|
|
|
void
|
|
|
|
|
store_typed_floating (void *addr, const struct type *type, DOUBLEST val)
|
|
|
|
|
{
|
2009-05-18 15:43:35 +02:00
|
|
|
|
const struct floatformat *fmt = floatformat_from_type (type);
|
2001-10-28 23:06:27 +01:00
|
|
|
|
|
|
|
|
|
/* FIXME: kettenis/2001-10-28: It is debatable whether we should
|
|
|
|
|
zero out any remaining bytes in the target buffer when TYPE is
|
|
|
|
|
longer than the actual underlying floating-point format. Perhaps
|
|
|
|
|
we should store a fixed bitpattern in those remaining bytes,
|
|
|
|
|
instead of zero, or perhaps we shouldn't touch those remaining
|
|
|
|
|
bytes at all.
|
|
|
|
|
|
|
|
|
|
NOTE: cagney/2001-10-28: With the way things currently work, it
|
|
|
|
|
isn't a good idea to leave the end bits undefined. This is
|
|
|
|
|
because GDB writes out the entire sizeof(<floating>) bits of the
|
|
|
|
|
floating-point type even though the value might only be stored
|
|
|
|
|
in, and the target processor may only refer to, the first N <
|
|
|
|
|
TYPE_LENGTH (type) bits. If the end of the buffer wasn't
|
|
|
|
|
initialized, GDB would write undefined data to the target. An
|
|
|
|
|
errant program, refering to that undefined data, would then
|
2001-10-30 00:35:37 +01:00
|
|
|
|
become non-deterministic.
|
|
|
|
|
|
|
|
|
|
See also the function convert_typed_floating below. */
|
2001-09-24 19:16:53 +02:00
|
|
|
|
memset (addr, 0, TYPE_LENGTH (type));
|
2001-10-28 23:06:27 +01:00
|
|
|
|
|
2009-05-18 15:43:35 +02:00
|
|
|
|
floatformat_from_doublest (fmt, &val, addr);
|
2001-09-24 19:16:53 +02:00
|
|
|
|
}
|
2001-10-30 00:35:37 +01:00
|
|
|
|
|
|
|
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/* Convert a floating-point number of type FROM_TYPE from a
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target-order byte-stream at FROM to a floating-point number of type
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TO_TYPE, and store it to a target-order byte-stream at TO. */
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void
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convert_typed_floating (const void *from, const struct type *from_type,
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void *to, const struct type *to_type)
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{
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2002-01-20 19:05:54 +01:00
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const struct floatformat *from_fmt = floatformat_from_type (from_type);
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const struct floatformat *to_fmt = floatformat_from_type (to_type);
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2001-10-30 00:35:37 +01:00
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if (from_fmt == NULL || to_fmt == NULL)
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{
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/* If we don't know the floating-point format of FROM_TYPE or
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TO_TYPE, there's not much we can do. We might make the
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assumption that if the length of FROM_TYPE and TO_TYPE match,
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their floating-point format would match too, but that
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assumption might be wrong on targets that support
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floating-point types that only differ in endianness for
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example. So we warn instead, and zero out the target buffer. */
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2005-02-10 Andrew Cagney <cagney@gnu.org>
Mark up all error and warning messages.
* ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update.
* bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update.
* core-aout.c, core-regset.c, corefile.c, corelow.c: Update.
* cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update.
* dbxread.c, demangle.c, doublest.c, dsrec.c: Update.
* dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update.
* dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update.
* event-top.c, exec.c, expprint.c, f-lang.c: Update.
* f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update.
* frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update.
* gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update.
* hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update.
* hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update.
* hpread.c, hpux-thread.c, i386-linux-nat.c: Update.
* i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update.
* i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update.
* ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update.
* inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update.
* kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update.
* linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update.
* m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update.
* m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update.
* maint.c, mdebugread.c, mem-break.c, memattr.c: Update.
* mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update.
* nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update.
* observer.c, ocd.c, p-lang.c, p-typeprint.c: Update.
* p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update.
* ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update.
* remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update.
* remote-rdp.c, remote-sim.c, remote-st.c: Update.
* remote-utils.c, remote-utils.h, remote.c: Update.
* rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update.
* ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update.
* sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update.
* solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update.
* solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update.
* somread.c, somsolib.c, source.c, stabsread.c: Update.
* stack.c, std-regs.c, symfile-mem.c, symfile.c: Update.
* symmisc.c, symtab.c, target.c, thread.c, top.c: Update.
* tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update.
* uw-thread.c, valarith.c, valops.c, valprint.c: Update.
* value.c, varobj.c, version.in, win32-nat.c, wince.c: Update.
* xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update.
* cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update.
* cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update.
* mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update.
* mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update.
* mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update.
* tui/tui-win.c: Update.
2005-02-11 05:06:14 +01:00
|
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|
warning (_("Can't convert floating-point number to desired type."));
|
2001-10-30 00:35:37 +01:00
|
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memset (to, 0, TYPE_LENGTH (to_type));
|
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|
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}
|
|
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else if (from_fmt == to_fmt)
|
|
|
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{
|
|
|
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/* We're in business. The floating-point format of FROM_TYPE
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and TO_TYPE match. However, even though the floating-point
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format matches, the length of the type might still be
|
|
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different. Make sure we don't overrun any buffers. See
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comment in store_typed_floating for a discussion about
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zeroing out remaining bytes in the target buffer. */
|
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memset (to, 0, TYPE_LENGTH (to_type));
|
gdb: Use std::min and std::max throughout
Otherwise including <string> or some other C++ header is broken.
E.g.:
In file included from /opt/gcc/include/c++/7.0.0/bits/char_traits.h:39:0,
from /opt/gcc/include/c++/7.0.0/string:40,
from /home/pedro/gdb/mygit/cxx-convertion/src/gdb/infrun.c:68:
/opt/gcc/include/c++/7.0.0/bits/stl_algobase.h:243:56: error: macro "min" passed 3 arguments, but takes just 2
min(const _Tp& __a, const _Tp& __b, _Compare __comp)
^
/opt/gcc/include/c++/7.0.0/bits/stl_algobase.h:265:56: error: macro "max" passed 3 arguments, but takes just 2
max(const _Tp& __a, const _Tp& __b, _Compare __comp)
^
In file included from .../src/gdb/infrun.c:21:0:
To the best of my grepping abilities, I believe I adjusted all min/max
calls.
gdb/ChangeLog:
2016-09-16 Pedro Alves <palves@redhat.com>
* defs.h (min, max): Delete.
* aarch64-tdep.c: Include <algorithm> and use std::min and
std::max throughout.
* aarch64-tdep.c: Likewise.
* alpha-tdep.c: Likewise.
* amd64-tdep.c: Likewise.
* amd64-windows-tdep.c: Likewise.
* arm-tdep.c: Likewise.
* avr-tdep.c: Likewise.
* breakpoint.c: Likewise.
* btrace.c: Likewise.
* ctf.c: Likewise.
* disasm.c: Likewise.
* doublest.c: Likewise.
* dwarf2loc.c: Likewise.
* dwarf2read.c: Likewise.
* environ.c: Likewise.
* exec.c: Likewise.
* f-exp.y: Likewise.
* findcmd.c: Likewise.
* ft32-tdep.c: Likewise.
* gcore.c: Likewise.
* hppa-tdep.c: Likewise.
* i386-darwin-tdep.c: Likewise.
* i386-tdep.c: Likewise.
* linux-thread-db.c: Likewise.
* lm32-tdep.c: Likewise.
* m32r-tdep.c: Likewise.
* m88k-tdep.c: Likewise.
* memrange.c: Likewise.
* minidebug.c: Likewise.
* mips-tdep.c: Likewise.
* moxie-tdep.c: Likewise.
* nds32-tdep.c: Likewise.
* nios2-tdep.c: Likewise.
* nto-procfs.c: Likewise.
* parse.c: Likewise.
* ppc-sysv-tdep.c: Likewise.
* probe.c: Likewise.
* record-btrace.c: Likewise.
* remote.c: Likewise.
* rs6000-tdep.c: Likewise.
* rx-tdep.c: Likewise.
* s390-linux-nat.c: Likewise.
* s390-linux-tdep.c: Likewise.
* ser-tcp.c: Likewise.
* sh-tdep.c: Likewise.
* sh64-tdep.c: Likewise.
* source.c: Likewise.
* sparc-tdep.c: Likewise.
* symfile.c: Likewise.
* target-memory.c: Likewise.
* target.c: Likewise.
* tic6x-tdep.c: Likewise.
* tilegx-tdep.c: Likewise.
* tracefile-tfile.c: Likewise.
* tracepoint.c: Likewise.
* valprint.c: Likewise.
* value.c: Likewise.
* xtensa-tdep.c: Likewise.
* cli/cli-cmds.c: Likewise.
* compile/compile-object-load.c: Likewise.
2016-09-16 20:55:17 +02:00
|
|
|
|
memcpy (to, from, std::min (TYPE_LENGTH (from_type),
|
|
|
|
|
TYPE_LENGTH (to_type)));
|
2001-10-30 00:35:37 +01:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* The floating-point types don't match. The best we can do
|
2008-05-04 01:24:17 +02:00
|
|
|
|
(apart from simulating the target FPU) is converting to the
|
2001-10-30 00:35:37 +01:00
|
|
|
|
widest floating-point type supported by the host, and then
|
|
|
|
|
again to the desired type. */
|
|
|
|
|
DOUBLEST d;
|
|
|
|
|
|
|
|
|
|
floatformat_to_doublest (from_fmt, from, &d);
|
|
|
|
|
floatformat_from_doublest (to_fmt, &d, to);
|
|
|
|
|
}
|
|
|
|
|
}
|