(i387-nat.o): Delete dependency list.
(go32-nat.o): Change i387-nat.h to i387-tdep.h.
(x86-64-linux-nat.o): Likewise.
* i387-nat.c: Delete file, moving contents to...
* i387-tdep.c: ...here.
* i387-nat.h: Rename...
* i387-tdep.h: ...to this.
* go32-nat.c: Include i387-tdep.h instead of i387-nat.h.
* i386-linux-nat.c: Likewise.
* i386bsd-nat.c: Likewise.
* i386gnu-nat.c: Likewise.
* i386nbsd-nat.c: Likewise.
* i386v4-nat.c: Likewise.
* x86-64-linux-nat.c: Likewise.
* config/i386/fbsd.mh (NATDEPFILES): Remove i387-nat.o.
* config/i386/go32.mh (NATDEPFILES): Likewise.
* config/i386/i386gnu.mh (NATDEPFILES): Likewise.
* config/i386/i386sol2.mh (NATDEPFILES): Likewise.
* config/i386/i386v42mp.mh (NATDEPFILES): Likewise.
* config/i386/linux.mh (NATDEPFILES): Likewise.
* config/i386/nbsd.mh (NATDEPFILES): Likewise.
* config/i386/nbsdelf.mh (NATDEPFILES): Likewise.
* config/i386/obsd.mh (NATDEPFILES): Likewise.
* config/i386/x86-64linux.mh (NATDEPFILES): Likewise.
+2002-05-11 Jason Thorpe <thorpej@wasabisystems.com>
+
+ * Makefile.in (ALLDEPFILES): Remove i387-nat.c.
+ (i387-nat.o): Delete dependency list.
+ (go32-nat.o): Change i387-nat.h to i387-tdep.h.
+ (x86-64-linux-nat.o): Likewise.
+ * i387-nat.c: Delete file, moving contents to...
+ * i387-tdep.c: ...here.
+ * i387-nat.h: Rename...
+ * i387-tdep.h: ...to this.
+ * go32-nat.c: Include i387-tdep.h instead of i387-nat.h.
+ * i386-linux-nat.c: Likewise.
+ * i386bsd-nat.c: Likewise.
+ * i386gnu-nat.c: Likewise.
+ * i386nbsd-nat.c: Likewise.
+ * i386v4-nat.c: Likewise.
+ * x86-64-linux-nat.c: Likewise.
+ * config/i386/fbsd.mh (NATDEPFILES): Remove i387-nat.o.
+ * config/i386/go32.mh (NATDEPFILES): Likewise.
+ * config/i386/i386gnu.mh (NATDEPFILES): Likewise.
+ * config/i386/i386sol2.mh (NATDEPFILES): Likewise.
+ * config/i386/i386v42mp.mh (NATDEPFILES): Likewise.
+ * config/i386/linux.mh (NATDEPFILES): Likewise.
+ * config/i386/nbsd.mh (NATDEPFILES): Likewise.
+ * config/i386/nbsdelf.mh (NATDEPFILES): Likewise.
+ * config/i386/obsd.mh (NATDEPFILES): Likewise.
+ * config/i386/x86-64linux.mh (NATDEPFILES): Likewise.
+
2002-05-11 Jason Thorpe <thorpej@wasabisystems.com>
* Makefile.in (ALLDEPFILES): Add alphabsd-tdep.c.
i386-tdep.c i386b-nat.c i386mach-nat.c i386v-nat.c i386-linux-nat.c \
i386aix-nat.c i386m3-nat.c i386v4-nat.c i386ly-tdep.c \
i386bsd-nat.c i386bsd-tdep.c i386fbsd-nat.c \
- i387-tdep.c i387-nat.c \
+ i387-tdep.c \
i386-linux-tdep.c i386-nat.c \
i960-tdep.c \
ia64-linux-nat.c ia64-linux-tdep.c ia64-tdep.c \
$(target_h) $(value_h) $(gdb_string_h) $(wrapper_h) $(cp_abi_h)
go32-nat.o: go32-nat.c $(defs_h) $(inferior_h) gdb_wait.h $(gdbcore_h) \
- $(command_h) $(floatformat_h) $(target_h) i387-nat.h $(regcache_h)
+ $(command_h) $(floatformat_h) $(target_h) i387-tdep.h $(regcache_h)
gnu-nat.o: process_reply_S.h exc_request_S.h notify_S.h msg_reply_S.h \
exc_request_U.h msg_U.h gnu-nat.h
i387-tdep.o: i387-tdep.c $(floatformat_h) $(defs_h) $(gdbcore_h) \
$(inferior_h) $(language_h) $(regcache_h) $(doublest_h) i386-tdep.h
-i387-nat.o: i387-nat.c $(defs_h) $(inferior_h) $(value_h) $(regcache_h) \
- i387-nat.h
-
i960-tdep.o: i960-tdep.c $(floatformat_h) $(defs_h) $(expression_h) \
$(frame_h) $(gdbtypes_h) $(symtab_h) $(value_h) $(gdbcore_h) \
$(regcache_h)
$(dwarf2cfi_h) gdb_assert.h
x86-64-linux-nat.o : x86-64-linux-nat.c $(defs_h) $(inferior_h) \
- $(gdbcore_h) $(regcache_h) i387-nat.h gdb_assert.h x86-64-tdep.h \
+ $(gdbcore_h) $(regcache_h) i387-tdep.h gdb_assert.h x86-64-tdep.h \
i386-tdep.h
win32-nat.o: win32-nat.c $(gdbcmd_h) $(gdbcore_h) $(inferior_h) $(defs_h) \
NAT_FILE= nm-fbsd.h
# NOTE: Do not spread NATDEPFILES over several lines - it hurts BSD make.
-NATDEPFILES= fork-child.o infptrace.o inftarg.o solib.o solib-svr4.o solib-legacy.o corelow.o core-aout.o core-regset.o i386-nat.o i387-nat.o i386bsd-nat.o i386fbsd-nat.o gcore.o fbsd-proc.o
+NATDEPFILES= fork-child.o infptrace.o inftarg.o solib.o solib-svr4.o solib-legacy.o corelow.o core-aout.o core-regset.o i386-nat.o i386bsd-nat.o i386fbsd-nat.o gcore.o fbsd-proc.o
XM_FILE= xm-go32.h
NAT_FILE= nm-go32.h
-NATDEPFILES= go32-nat.o i386-nat.o i387-nat.o
+NATDEPFILES= go32-nat.o i386-nat.o
TERMCAP=
HOST_IPC=
# Host: Intel 386 running the GNU Hurd
-NATDEPFILES= i386gnu-nat.o i387-nat.o gnu-nat.o corelow.o core-regset.o \
+NATDEPFILES= i386gnu-nat.o gnu-nat.o corelow.o core-regset.o \
fork-child.o solib.o solib-svr4.o solib-legacy.o \
notify_S.o process_reply_S.o msg_reply_S.o \
msg_U.o exc_request_U.o exc_request_S.o
XM_CLIBS= -lsocket -lnsl
NAT_FILE= nm-i386sol2.h
-NATDEPFILES= core-regset.o fork-child.o i386v4-nat.o i387-nat.o corelow.o \
+NATDEPFILES= core-regset.o fork-child.o i386v4-nat.o corelow.o \
procfs.o proc-api.o proc-events.o proc-flags.o proc-why.o gcore.o
# continuation character (backslash) to extend a commented line. As a
# consequence, make considers subsequent tab-indented lines to be
# some sort of error.
-NATDEPFILES= corelow.o core-regset.o fork-child.o i386v4-nat.o i387-nat.o \
+NATDEPFILES= corelow.o core-regset.o fork-child.o i386v4-nat.o \
gcore.o solib.o solib-svr4.o solib-legacy.o procfs.o proc-api.o \
proc-events.o proc-flags.o proc-why.o uw-thread.o
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o linux-proc.o \
- core-aout.o i386-nat.o i386-linux-nat.o i387-nat.o \
+ core-aout.o i386-nat.o i386-linux-nat.o \
proc-service.o thread-db.o lin-lwp.o linux-proc.o gcore.o
# The dynamically loaded libthread_db needs access to symbols in the
# continuation character (backslash) to extend a commented line. As a
# consequence, BSD make considers subsequent tab-indented lines to be
# "unassociated shell commands".
-NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o i387-nat.o i386bsd-nat.o i386nbsd-nat.o solib.o solib-sunos.o
+NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o i386bsd-nat.o i386nbsd-nat.o solib.o solib-sunos.o
XM_FILE= xm-nbsd.h
NAT_FILE= nm-nbsd.h
# Host: Intel 386 running NetBSD
-NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o i387-nat.o i386bsd-nat.o i386nbsd-nat.o solib.o solib-svr4.o solib-legacy.o
+NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o i386bsd-nat.o i386nbsd-nat.o solib.o solib-svr4.o solib-legacy.o
XM_FILE= xm-nbsd.h
NAT_FILE= nm-nbsdelf.h
NAT_FILE= nm-obsd.h
# NOTE: Do not spread NATDEPFILES over several lines - it hurts BSD make.
-NATDEPFILES= fork-child.o infptrace.o inftarg.o solib.o solib-sunos.o corelow.o core-aout.o i386-nat.o i387-nat.o i386bsd-nat.o
+NATDEPFILES= fork-child.o infptrace.o inftarg.o solib.o solib-sunos.o corelow.o core-aout.o i386-nat.o i386bsd-nat.o
NAT_FILE= nm-x86-64.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o \
core-aout.o i386-nat.o x86-64-linux-nat.o \
- i387-nat.o proc-service.o thread-db.o lin-lwp.o \
+ proc-service.o thread-db.o lin-lwp.o \
linux-proc.o gcore.o
LOADLIBES = -ldl -rdynamic
#include "gdbcmd.h"
#include "floatformat.h"
#include "buildsym.h"
-#include "i387-nat.h"
+#include "i387-tdep.h"
#include "i386-tdep.h"
#include "value.h"
#include "regcache.h"
#include "gregset.h"
/* Prototypes for i387_supply_fsave etc. */
-#include "i387-nat.h"
+#include "i387-tdep.h"
/* Defines for XMM0_REGNUM etc. */
#include "i386-tdep.h"
regcache_collect (i, REG_ADDR (gregsetp, i));
}
-#include "i387-nat.h"
+#include "i387-tdep.h"
/* Fill GDB's register array with the floating-point register values
in *FPREGSETP. */
#include "i386-tdep.h"
#include "gnu-nat.h"
-#include "i387-nat.h"
+#include "i387-tdep.h"
#ifdef HAVE_SYS_PROCFS_H
# include <sys/procfs.h>
#include "gregset.h"
/* Prototypes for i387_supply_fsave etc. */
-#include "i387-nat.h"
+#include "i387-tdep.h"
struct md_core
{
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
#endif
-#include "i387-nat.h"
+#include "i387-tdep.h"
#ifdef HAVE_SYS_PROCFS_H
+++ /dev/null
-/* Native-dependent code for the i387.
- Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
-
- This file is part of GDB.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include "defs.h"
-#include "inferior.h"
-#include "value.h"
-#include "regcache.h"
-
-#include "i387-nat.h"
-#include "i386-tdep.h"
-
-/* FIXME: kettenis/2000-05-21: Right now more than a few i386 targets
- define their own routines to manage the floating-point registers in
- GDB's register array. Most (if not all) of these targets use the
- format used by the "fsave" instruction in their communication with
- the OS. They should all be converted to use the routines below. */
-
-/* At fsave_offset[REGNUM] you'll find the offset to the location in
- the data structure used by the "fsave" instruction where GDB
- register REGNUM is stored. */
-
-static int fsave_offset[] =
-{
- 28 + 0 * FPU_REG_RAW_SIZE, /* FP0_REGNUM through ... */
- 28 + 1 * FPU_REG_RAW_SIZE,
- 28 + 2 * FPU_REG_RAW_SIZE,
- 28 + 3 * FPU_REG_RAW_SIZE,
- 28 + 4 * FPU_REG_RAW_SIZE,
- 28 + 5 * FPU_REG_RAW_SIZE,
- 28 + 6 * FPU_REG_RAW_SIZE,
- 28 + 7 * FPU_REG_RAW_SIZE, /* ... FP7_REGNUM. */
- 0, /* FCTRL_REGNUM (16 bits). */
- 4, /* FSTAT_REGNUM (16 bits). */
- 8, /* FTAG_REGNUM (16 bits). */
- 16, /* FISEG_REGNUM (16 bits). */
- 12, /* FIOFF_REGNUM. */
- 24, /* FOSEG_REGNUM. */
- 20, /* FOOFF_REGNUM. */
- 18 /* FOP_REGNUM (bottom 11 bits). */
-};
-
-#define FSAVE_ADDR(fsave, regnum) (fsave + fsave_offset[regnum - FP0_REGNUM])
-\f
-
-/* Fill register REGNUM in GDB's register array with the appropriate
- value from *FSAVE. This function masks off any of the reserved
- bits in *FSAVE. */
-
-void
-i387_supply_register (int regnum, char *fsave)
-{
- /* Most of the FPU control registers occupy only 16 bits in
- the fsave area. Give those a special treatment. */
- if (regnum >= FPC_REGNUM
- && regnum != FIOFF_REGNUM && regnum != FOOFF_REGNUM)
- {
- unsigned char val[4];
-
- memcpy (val, FSAVE_ADDR (fsave, regnum), 2);
- val[2] = val[3] = 0;
- if (regnum == FOP_REGNUM)
- val[1] &= ((1 << 3) - 1);
- supply_register (regnum, val);
- }
- else
- supply_register (regnum, FSAVE_ADDR (fsave, regnum));
-}
-
-/* Fill GDB's register array with the floating-point register values
- in *FSAVE. This function masks off any of the reserved
- bits in *FSAVE. */
-
-void
-i387_supply_fsave (char *fsave)
-{
- int i;
-
- for (i = FP0_REGNUM; i < XMM0_REGNUM; i++)
- i387_supply_register (i, fsave);
-}
-
-/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
- with the value in GDB's register array. If REGNUM is -1, do this
- for all registers. This function doesn't touch any of the reserved
- bits in *FSAVE. */
-
-void
-i387_fill_fsave (char *fsave, int regnum)
-{
- int i;
-
- for (i = FP0_REGNUM; i < XMM0_REGNUM; i++)
- if (regnum == -1 || regnum == i)
- {
- /* Most of the FPU control registers occupy only 16 bits in
- the fsave area. Give those a special treatment. */
- if (i >= FPC_REGNUM
- && i != FIOFF_REGNUM && i != FOOFF_REGNUM)
- {
- unsigned char buf[4];
-
- regcache_collect (i, buf);
-
- if (i == FOP_REGNUM)
- {
- /* The opcode occupies only 11 bits. Make sure we
- don't touch the other bits. */
- buf[1] &= ((1 << 3) - 1);
- buf[1] |= ((FSAVE_ADDR (fsave, i))[1] & ~((1 << 3) - 1));
- }
- memcpy (FSAVE_ADDR (fsave, i), buf, 2);
- }
- else
- regcache_collect (i, FSAVE_ADDR (fsave, i));
- }
-}
-\f
-
-/* At fxsave_offset[REGNUM] you'll find the offset to the location in
- the data structure used by the "fxsave" instruction where GDB
- register REGNUM is stored. */
-
-static int fxsave_offset[] =
-{
- 32, /* FP0_REGNUM through ... */
- 48,
- 64,
- 80,
- 96,
- 112,
- 128,
- 144, /* ... FP7_REGNUM (80 bits each). */
- 0, /* FCTRL_REGNUM (16 bits). */
- 2, /* FSTAT_REGNUM (16 bits). */
- 4, /* FTAG_REGNUM (16 bits). */
- 12, /* FISEG_REGNUM (16 bits). */
- 8, /* FIOFF_REGNUM. */
- 20, /* FOSEG_REGNUM (16 bits). */
- 16, /* FOOFF_REGNUM. */
- 6, /* FOP_REGNUM (bottom 11 bits). */
- 160, /* XMM0_REGNUM through ... */
- 176,
- 192,
- 208,
- 224,
- 240,
- 256,
- 272, /* ... XMM7_REGNUM (128 bits each). */
- 24, /* MXCSR_REGNUM. */
-};
-
-#define FXSAVE_ADDR(fxsave, regnum) \
- (fxsave + fxsave_offset[regnum - FP0_REGNUM])
-
-static int i387_tag (unsigned char *raw);
-\f
-
-/* Fill GDB's register array with the floating-point and SSE register
- values in *FXSAVE. This function masks off any of the reserved
- bits in *FXSAVE. */
-
-void
-i387_supply_fxsave (char *fxsave)
-{
- int i;
-
- for (i = FP0_REGNUM; i <= MXCSR_REGNUM; i++)
- {
- /* Most of the FPU control registers occupy only 16 bits in
- the fxsave area. Give those a special treatment. */
- if (i >= FPC_REGNUM && i < XMM0_REGNUM
- && i != FIOFF_REGNUM && i != FOOFF_REGNUM)
- {
- unsigned char val[4];
-
- memcpy (val, FXSAVE_ADDR (fxsave, i), 2);
- val[2] = val[3] = 0;
- if (i == FOP_REGNUM)
- val[1] &= ((1 << 3) - 1);
- else if (i== FTAG_REGNUM)
- {
- /* The fxsave area contains a simplified version of the
- tag word. We have to look at the actual 80-bit FP
- data to recreate the traditional i387 tag word. */
-
- unsigned long ftag = 0;
- int fpreg;
- int top;
-
- top = (((FXSAVE_ADDR (fxsave, FSTAT_REGNUM))[1] >> 3) & 0x7);
-
- for (fpreg = 7; fpreg >= 0; fpreg--)
- {
- int tag;
-
- if (val[0] & (1 << fpreg))
- {
- int regnum = (fpreg + 8 - top) % 8 + FP0_REGNUM;
- tag = i387_tag (FXSAVE_ADDR (fxsave, regnum));
- }
- else
- tag = 3; /* Empty */
-
- ftag |= tag << (2 * fpreg);
- }
- val[0] = ftag & 0xff;
- val[1] = (ftag >> 8) & 0xff;
- }
- supply_register (i, val);
- }
- else
- supply_register (i, FXSAVE_ADDR (fxsave, i));
- }
-}
-
-/* Fill register REGNUM (if it is a floating-point or SSE register) in
- *FXSAVE with the value in GDB's register array. If REGNUM is -1, do
- this for all registers. This function doesn't touch any of the
- reserved bits in *FXSAVE. */
-
-void
-i387_fill_fxsave (char *fxsave, int regnum)
-{
- int i;
-
- for (i = FP0_REGNUM; i <= MXCSR_REGNUM; i++)
- if (regnum == -1 || regnum == i)
- {
- /* Most of the FPU control registers occupy only 16 bits in
- the fxsave area. Give those a special treatment. */
- if (i >= FPC_REGNUM && i < XMM0_REGNUM
- && i != FIOFF_REGNUM && i != FDOFF_REGNUM)
- {
- unsigned char buf[4];
-
- regcache_collect (i, buf);
-
- if (i == FOP_REGNUM)
- {
- /* The opcode occupies only 11 bits. Make sure we
- don't touch the other bits. */
- buf[1] &= ((1 << 3) - 1);
- buf[1] |= ((FXSAVE_ADDR (fxsave, i))[1] & ~((1 << 3) - 1));
- }
- else if (i == FTAG_REGNUM)
- {
- /* Converting back is much easier. */
-
- unsigned short ftag;
- int fpreg;
-
- ftag = (buf[1] << 8) | buf[0];
- buf[0] = 0;
- buf[1] = 0;
-
- for (fpreg = 7; fpreg >= 0; fpreg--)
- {
- int tag = (ftag >> (fpreg * 2)) & 3;
-
- if (tag != 3)
- buf[0] |= (1 << fpreg);
- }
- }
- memcpy (FXSAVE_ADDR (fxsave, i), buf, 2);
- }
- else
- regcache_collect (i, FXSAVE_ADDR (fxsave, i));
- }
-}
-
-/* Recreate the FTW (tag word) valid bits from the 80-bit FP data in
- *RAW. */
-
-static int
-i387_tag (unsigned char *raw)
-{
- int integer;
- unsigned int exponent;
- unsigned long fraction[2];
-
- integer = raw[7] & 0x80;
- exponent = (((raw[9] & 0x7f) << 8) | raw[8]);
- fraction[0] = ((raw[3] << 24) | (raw[2] << 16) | (raw[1] << 8) | raw[0]);
- fraction[1] = (((raw[7] & 0x7f) << 24) | (raw[6] << 16)
- | (raw[5] << 8) | raw[4]);
-
- if (exponent == 0x7fff)
- {
- /* Special. */
- return (2);
- }
- else if (exponent == 0x0000)
- {
- if (fraction[0] == 0x0000 && fraction[1] == 0x0000 && !integer)
- {
- /* Zero. */
- return (1);
- }
- else
- {
- /* Special. */
- return (2);
- }
- }
- else
- {
- if (integer)
- {
- /* Valid. */
- return (0);
- }
- else
- {
- /* Special. */
- return (2);
- }
- }
-}
+++ /dev/null
-/* Native-dependent code for the i387.
- Copyright 2000, 2001 Free Software Foundation, Inc.
-
- This file is part of GDB.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#ifndef I387_NAT_H
-#define I387_NAT_H
-
-/* Fill register REGNUM in GDB's register array with the appropriate
- value from *FSAVE. This function masks off any of the reserved
- bits in *FSAVE. */
-
-extern void i387_supply_register (int regnum, char *fsave);
-
-/* Fill GDB's register array with the floating-point register values
- in *FSAVE. This function masks off any of the reserved
- bits in *FSAVE. */
-
-extern void i387_supply_fsave (char *fsave);
-
-/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
- with the value in GDB's register array. If REGNUM is -1, do this
- for all registers. This function doesn't touch any of the reserved
- bits in *FSAVE. */
-
-extern void i387_fill_fsave (char *fsave, int regnum);
-
-/* Fill GDB's register array with the floating-point and SSE register
- values in *FXSAVE. This function masks off any of the reserved
- bits in *FXSAVE. */
-
-extern void i387_supply_fxsave (char *fxsave);
-
-/* Fill register REGNUM (if it is a floating-point or SSE register) in
- *FXSAVE with the value in GDB's register array. If REGNUM is -1, do
- this for all registers. This function doesn't touch any of the
- reserved bits in *FXSAVE. */
-
-extern void i387_fill_fxsave (char *fxsave, int regnum);
-
-#endif /* i387-nat.h */
printf_filtered ("Opcode: %s\n",
local_hex_string_custom (fop ? (fop | 0xd800) : 0, "04"));
}
+
+/* FIXME: kettenis/2000-05-21: Right now more than a few i386 targets
+ define their own routines to manage the floating-point registers in
+ GDB's register array. Most (if not all) of these targets use the
+ format used by the "fsave" instruction in their communication with
+ the OS. They should all be converted to use the routines below. */
+
+/* At fsave_offset[REGNUM] you'll find the offset to the location in
+ the data structure used by the "fsave" instruction where GDB
+ register REGNUM is stored. */
+
+static int fsave_offset[] =
+{
+ 28 + 0 * FPU_REG_RAW_SIZE, /* FP0_REGNUM through ... */
+ 28 + 1 * FPU_REG_RAW_SIZE,
+ 28 + 2 * FPU_REG_RAW_SIZE,
+ 28 + 3 * FPU_REG_RAW_SIZE,
+ 28 + 4 * FPU_REG_RAW_SIZE,
+ 28 + 5 * FPU_REG_RAW_SIZE,
+ 28 + 6 * FPU_REG_RAW_SIZE,
+ 28 + 7 * FPU_REG_RAW_SIZE, /* ... FP7_REGNUM. */
+ 0, /* FCTRL_REGNUM (16 bits). */
+ 4, /* FSTAT_REGNUM (16 bits). */
+ 8, /* FTAG_REGNUM (16 bits). */
+ 16, /* FISEG_REGNUM (16 bits). */
+ 12, /* FIOFF_REGNUM. */
+ 24, /* FOSEG_REGNUM. */
+ 20, /* FOOFF_REGNUM. */
+ 18 /* FOP_REGNUM (bottom 11 bits). */
+};
+
+#define FSAVE_ADDR(fsave, regnum) (fsave + fsave_offset[regnum - FP0_REGNUM])
+\f
+
+/* Fill register REGNUM in GDB's register array with the appropriate
+ value from *FSAVE. This function masks off any of the reserved
+ bits in *FSAVE. */
+
+void
+i387_supply_register (int regnum, char *fsave)
+{
+ /* Most of the FPU control registers occupy only 16 bits in
+ the fsave area. Give those a special treatment. */
+ if (regnum >= FPC_REGNUM
+ && regnum != FIOFF_REGNUM && regnum != FOOFF_REGNUM)
+ {
+ unsigned char val[4];
+
+ memcpy (val, FSAVE_ADDR (fsave, regnum), 2);
+ val[2] = val[3] = 0;
+ if (regnum == FOP_REGNUM)
+ val[1] &= ((1 << 3) - 1);
+ supply_register (regnum, val);
+ }
+ else
+ supply_register (regnum, FSAVE_ADDR (fsave, regnum));
+}
+
+/* Fill GDB's register array with the floating-point register values
+ in *FSAVE. This function masks off any of the reserved
+ bits in *FSAVE. */
+
+void
+i387_supply_fsave (char *fsave)
+{
+ int i;
+
+ for (i = FP0_REGNUM; i < XMM0_REGNUM; i++)
+ i387_supply_register (i, fsave);
+}
+
+/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
+ with the value in GDB's register array. If REGNUM is -1, do this
+ for all registers. This function doesn't touch any of the reserved
+ bits in *FSAVE. */
+
+void
+i387_fill_fsave (char *fsave, int regnum)
+{
+ int i;
+
+ for (i = FP0_REGNUM; i < XMM0_REGNUM; i++)
+ if (regnum == -1 || regnum == i)
+ {
+ /* Most of the FPU control registers occupy only 16 bits in
+ the fsave area. Give those a special treatment. */
+ if (i >= FPC_REGNUM
+ && i != FIOFF_REGNUM && i != FOOFF_REGNUM)
+ {
+ unsigned char buf[4];
+
+ regcache_collect (i, buf);
+
+ if (i == FOP_REGNUM)
+ {
+ /* The opcode occupies only 11 bits. Make sure we
+ don't touch the other bits. */
+ buf[1] &= ((1 << 3) - 1);
+ buf[1] |= ((FSAVE_ADDR (fsave, i))[1] & ~((1 << 3) - 1));
+ }
+ memcpy (FSAVE_ADDR (fsave, i), buf, 2);
+ }
+ else
+ regcache_collect (i, FSAVE_ADDR (fsave, i));
+ }
+}
+\f
+
+/* At fxsave_offset[REGNUM] you'll find the offset to the location in
+ the data structure used by the "fxsave" instruction where GDB
+ register REGNUM is stored. */
+
+static int fxsave_offset[] =
+{
+ 32, /* FP0_REGNUM through ... */
+ 48,
+ 64,
+ 80,
+ 96,
+ 112,
+ 128,
+ 144, /* ... FP7_REGNUM (80 bits each). */
+ 0, /* FCTRL_REGNUM (16 bits). */
+ 2, /* FSTAT_REGNUM (16 bits). */
+ 4, /* FTAG_REGNUM (16 bits). */
+ 12, /* FISEG_REGNUM (16 bits). */
+ 8, /* FIOFF_REGNUM. */
+ 20, /* FOSEG_REGNUM (16 bits). */
+ 16, /* FOOFF_REGNUM. */
+ 6, /* FOP_REGNUM (bottom 11 bits). */
+ 160, /* XMM0_REGNUM through ... */
+ 176,
+ 192,
+ 208,
+ 224,
+ 240,
+ 256,
+ 272, /* ... XMM7_REGNUM (128 bits each). */
+ 24, /* MXCSR_REGNUM. */
+};
+
+#define FXSAVE_ADDR(fxsave, regnum) \
+ (fxsave + fxsave_offset[regnum - FP0_REGNUM])
+
+static int i387_tag (unsigned char *raw);
+\f
+
+/* Fill GDB's register array with the floating-point and SSE register
+ values in *FXSAVE. This function masks off any of the reserved
+ bits in *FXSAVE. */
+
+void
+i387_supply_fxsave (char *fxsave)
+{
+ int i;
+
+ for (i = FP0_REGNUM; i <= MXCSR_REGNUM; i++)
+ {
+ /* Most of the FPU control registers occupy only 16 bits in
+ the fxsave area. Give those a special treatment. */
+ if (i >= FPC_REGNUM && i < XMM0_REGNUM
+ && i != FIOFF_REGNUM && i != FOOFF_REGNUM)
+ {
+ unsigned char val[4];
+
+ memcpy (val, FXSAVE_ADDR (fxsave, i), 2);
+ val[2] = val[3] = 0;
+ if (i == FOP_REGNUM)
+ val[1] &= ((1 << 3) - 1);
+ else if (i== FTAG_REGNUM)
+ {
+ /* The fxsave area contains a simplified version of the
+ tag word. We have to look at the actual 80-bit FP
+ data to recreate the traditional i387 tag word. */
+
+ unsigned long ftag = 0;
+ int fpreg;
+ int top;
+
+ top = (((FXSAVE_ADDR (fxsave, FSTAT_REGNUM))[1] >> 3) & 0x7);
+
+ for (fpreg = 7; fpreg >= 0; fpreg--)
+ {
+ int tag;
+
+ if (val[0] & (1 << fpreg))
+ {
+ int regnum = (fpreg + 8 - top) % 8 + FP0_REGNUM;
+ tag = i387_tag (FXSAVE_ADDR (fxsave, regnum));
+ }
+ else
+ tag = 3; /* Empty */
+
+ ftag |= tag << (2 * fpreg);
+ }
+ val[0] = ftag & 0xff;
+ val[1] = (ftag >> 8) & 0xff;
+ }
+ supply_register (i, val);
+ }
+ else
+ supply_register (i, FXSAVE_ADDR (fxsave, i));
+ }
+}
+
+/* Fill register REGNUM (if it is a floating-point or SSE register) in
+ *FXSAVE with the value in GDB's register array. If REGNUM is -1, do
+ this for all registers. This function doesn't touch any of the
+ reserved bits in *FXSAVE. */
+
+void
+i387_fill_fxsave (char *fxsave, int regnum)
+{
+ int i;
+
+ for (i = FP0_REGNUM; i <= MXCSR_REGNUM; i++)
+ if (regnum == -1 || regnum == i)
+ {
+ /* Most of the FPU control registers occupy only 16 bits in
+ the fxsave area. Give those a special treatment. */
+ if (i >= FPC_REGNUM && i < XMM0_REGNUM
+ && i != FIOFF_REGNUM && i != FDOFF_REGNUM)
+ {
+ unsigned char buf[4];
+
+ regcache_collect (i, buf);
+
+ if (i == FOP_REGNUM)
+ {
+ /* The opcode occupies only 11 bits. Make sure we
+ don't touch the other bits. */
+ buf[1] &= ((1 << 3) - 1);
+ buf[1] |= ((FXSAVE_ADDR (fxsave, i))[1] & ~((1 << 3) - 1));
+ }
+ else if (i == FTAG_REGNUM)
+ {
+ /* Converting back is much easier. */
+
+ unsigned short ftag;
+ int fpreg;
+
+ ftag = (buf[1] << 8) | buf[0];
+ buf[0] = 0;
+ buf[1] = 0;
+
+ for (fpreg = 7; fpreg >= 0; fpreg--)
+ {
+ int tag = (ftag >> (fpreg * 2)) & 3;
+
+ if (tag != 3)
+ buf[0] |= (1 << fpreg);
+ }
+ }
+ memcpy (FXSAVE_ADDR (fxsave, i), buf, 2);
+ }
+ else
+ regcache_collect (i, FXSAVE_ADDR (fxsave, i));
+ }
+}
+
+/* Recreate the FTW (tag word) valid bits from the 80-bit FP data in
+ *RAW. */
+
+static int
+i387_tag (unsigned char *raw)
+{
+ int integer;
+ unsigned int exponent;
+ unsigned long fraction[2];
+
+ integer = raw[7] & 0x80;
+ exponent = (((raw[9] & 0x7f) << 8) | raw[8]);
+ fraction[0] = ((raw[3] << 24) | (raw[2] << 16) | (raw[1] << 8) | raw[0]);
+ fraction[1] = (((raw[7] & 0x7f) << 24) | (raw[6] << 16)
+ | (raw[5] << 8) | raw[4]);
+
+ if (exponent == 0x7fff)
+ {
+ /* Special. */
+ return (2);
+ }
+ else if (exponent == 0x0000)
+ {
+ if (fraction[0] == 0x0000 && fraction[1] == 0x0000 && !integer)
+ {
+ /* Zero. */
+ return (1);
+ }
+ else
+ {
+ /* Special. */
+ return (2);
+ }
+ }
+ else
+ {
+ if (integer)
+ {
+ /* Valid. */
+ return (0);
+ }
+ else
+ {
+ /* Special. */
+ return (2);
+ }
+ }
+}
--- /dev/null
+/* Target-dependent code for the i387.
+ Copyright 2000, 2001 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef I387_TDEP_H
+#define I387_TDEP_H
+
+/* Fill register REGNUM in GDB's register array with the appropriate
+ value from *FSAVE. This function masks off any of the reserved
+ bits in *FSAVE. */
+
+extern void i387_supply_register (int regnum, char *fsave);
+
+/* Fill GDB's register array with the floating-point register values
+ in *FSAVE. This function masks off any of the reserved
+ bits in *FSAVE. */
+
+extern void i387_supply_fsave (char *fsave);
+
+/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
+ with the value in GDB's register array. If REGNUM is -1, do this
+ for all registers. This function doesn't touch any of the reserved
+ bits in *FSAVE. */
+
+extern void i387_fill_fsave (char *fsave, int regnum);
+
+/* Fill GDB's register array with the floating-point and SSE register
+ values in *FXSAVE. This function masks off any of the reserved
+ bits in *FXSAVE. */
+
+extern void i387_supply_fxsave (char *fxsave);
+
+/* Fill register REGNUM (if it is a floating-point or SSE register) in
+ *FXSAVE with the value in GDB's register array. If REGNUM is -1, do
+ this for all registers. This function doesn't touch any of the
+ reserved bits in *FXSAVE. */
+
+extern void i387_fill_fxsave (char *fxsave, int regnum);
+
+#endif /* i387-tdep.h */
#include "inferior.h"
#include "gdbcore.h"
#include "regcache.h"
-#include "i387-nat.h"
+#include "i387-tdep.h"
#include "gdb_assert.h"
#include "x86-64-tdep.h"
projects / binutils-gdb.git / commitdiff