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-rw-r--r--gdb/gdbserver/i387-fp.c290
1 files changed, 0 insertions, 290 deletions
diff --git a/gdb/gdbserver/i387-fp.c b/gdb/gdbserver/i387-fp.c
deleted file mode 100644
index 19a9929..0000000
--- a/gdb/gdbserver/i387-fp.c
+++ /dev/null
@@ -1,290 +0,0 @@
-/* i387-specific utility functions, for the remote server for GDB.
- 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 "server.h"
-#include "i387-fp.h"
-
-int num_xmm_registers = 8;
-
-/* Note: These functions preserve the reserved bits in control registers.
- However, gdbserver promptly throws away that information. */
-
-/* These structs should have the proper sizes and alignment on both
- i386 and x86-64 machines. */
-
-struct i387_fsave {
- /* All these are only sixteen bits, plus padding, except for fop (which
- is only eleven bits), and fooff / fioff (which are 32 bits each). */
- unsigned int fctrl;
- unsigned int fstat;
- unsigned int ftag;
- unsigned int fioff;
- unsigned short fiseg;
- unsigned short fop;
- unsigned int fooff;
- unsigned int foseg;
-
- /* Space for eight 80-bit FP values. */
- char st_space[80];
-};
-
-struct i387_fxsave {
- /* All these are only sixteen bits, plus padding, except for fop (which
- is only eleven bits), and fooff / fioff (which are 32 bits each). */
- unsigned short fctrl;
- unsigned short fstat;
- unsigned short ftag;
- unsigned short fop;
- unsigned int fioff;
- unsigned int fiseg;
- unsigned int fooff;
- unsigned int foseg;
-
- unsigned int mxcsr;
-
- unsigned int _pad1;
-
- /* Space for eight 80-bit FP values in 128-bit spaces. */
- char st_space[128];
-
- /* Space for eight 128-bit XMM values, or 16 on x86-64. */
- char xmm_space[256];
-};
-
-void
-i387_cache_to_fsave (void *buf)
-{
- struct i387_fsave *fp = (struct i387_fsave *) buf;
- int i;
- int st0_regnum = find_regno ("st0");
- unsigned long val, val2;
-
- for (i = 0; i < 8; i++)
- collect_register (i + st0_regnum, ((char *) &fp->st_space[0]) + i * 10);
-
- collect_register_by_name ("fioff", &fp->fioff);
- collect_register_by_name ("fooff", &fp->fooff);
-
- /* This one's 11 bits... */
- collect_register_by_name ("fop", &val2);
- fp->fop = (val2 & 0x7FF) | (fp->fop & 0xF800);
-
- /* Some registers are 16-bit. */
- collect_register_by_name ("fctrl", &val);
- *(unsigned short *) &fp->fctrl = val;
-
- collect_register_by_name ("fstat", &val);
- val &= 0xFFFF;
- *(unsigned short *) &fp->fstat = val;
-
- collect_register_by_name ("ftag", &val);
- val &= 0xFFFF;
- *(unsigned short *) &fp->ftag = val;
-
- collect_register_by_name ("fiseg", &val);
- val &= 0xFFFF;
- *(unsigned short *) &fp->fiseg = val;
-
- collect_register_by_name ("foseg", &val);
- val &= 0xFFFF;
- *(unsigned short *) &fp->foseg = val;
-}
-
-void
-i387_fsave_to_cache (const void *buf)
-{
- struct i387_fsave *fp = (struct i387_fsave *) buf;
- int i;
- int st0_regnum = find_regno ("st0");
- unsigned long val;
-
- for (i = 0; i < 8; i++)
- supply_register (i + st0_regnum, ((char *) &fp->st_space[0]) + i * 10);
-
- supply_register_by_name ("fioff", &fp->fioff);
- supply_register_by_name ("fooff", &fp->fooff);
-
- /* Some registers are 16-bit. */
- val = fp->fctrl & 0xFFFF;
- supply_register_by_name ("fctrl", &val);
-
- val = fp->fstat & 0xFFFF;
- supply_register_by_name ("fstat", &val);
-
- val = fp->ftag & 0xFFFF;
- supply_register_by_name ("ftag", &val);
-
- val = fp->fiseg & 0xFFFF;
- supply_register_by_name ("fiseg", &val);
-
- val = fp->foseg & 0xFFFF;
- supply_register_by_name ("foseg", &val);
-
- val = (fp->fop) & 0x7FF;
- supply_register_by_name ("fop", &val);
-}
-
-void
-i387_cache_to_fxsave (void *buf)
-{
- struct i387_fxsave *fp = (struct i387_fxsave *) buf;
- int i;
- int st0_regnum = find_regno ("st0");
- int xmm0_regnum = find_regno ("xmm0");
- unsigned long val, val2;
-
- for (i = 0; i < 8; i++)
- collect_register (i + st0_regnum, ((char *) &fp->st_space[0]) + i * 16);
- for (i = 0; i < num_xmm_registers; i++)
- collect_register (i + xmm0_regnum, ((char *) &fp->xmm_space[0]) + i * 16);
-
- collect_register_by_name ("fioff", &fp->fioff);
- collect_register_by_name ("fooff", &fp->fooff);
- collect_register_by_name ("mxcsr", &fp->mxcsr);
-
- /* This one's 11 bits... */
- collect_register_by_name ("fop", &val2);
- fp->fop = (val2 & 0x7FF) | (fp->fop & 0xF800);
-
- /* Some registers are 16-bit. */
- collect_register_by_name ("fctrl", &val);
- *(unsigned short *) &fp->fctrl = val;
-
- collect_register_by_name ("fstat", &val);
- val &= 0xFFFF;
- *(unsigned short *) &fp->fstat = val;
-
- /* Convert to the simplifed tag form stored in fxsave data. */
- collect_register_by_name ("ftag", &val);
- val &= 0xFFFF;
- for (i = 7; i >= 0; i--)
- {
- int tag = (val >> (i * 2)) & 3;
-
- if (tag != 3)
- val2 |= (1 << i);
- }
- *(unsigned short *) &fp->ftag = val2;
-
- collect_register_by_name ("fiseg", &val);
- val &= 0xFFFF;
- *(unsigned short *) &fp->fiseg = val;
-
- collect_register_by_name ("foseg", &val);
- val &= 0xFFFF;
- *(unsigned short *) &fp->foseg = val;
-}
-
-static int
-i387_ftag (struct i387_fxsave *fp, int regno)
-{
- unsigned char *raw = &fp->st_space[regno * 16];
- unsigned int exponent;
- unsigned long fraction[2];
- int integer;
-
- 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);
- }
- }
-}
-
-void
-i387_fxsave_to_cache (const void *buf)
-{
- struct i387_fxsave *fp = (struct i387_fxsave *) buf;
- int i, top;
- int st0_regnum = find_regno ("st0");
- int xmm0_regnum = find_regno ("xmm0");
- unsigned long val;
-
- for (i = 0; i < 8; i++)
- supply_register (i + st0_regnum, ((char *) &fp->st_space[0]) + i * 16);
- for (i = 0; i < num_xmm_registers; i++)
- supply_register (i + xmm0_regnum, ((char *) &fp->xmm_space[0]) + i * 16);
-
- supply_register_by_name ("fioff", &fp->fioff);
- supply_register_by_name ("fooff", &fp->fooff);
- supply_register_by_name ("mxcsr", &fp->mxcsr);
-
- /* Some registers are 16-bit. */
- val = fp->fctrl & 0xFFFF;
- supply_register_by_name ("fctrl", &val);
-
- val = fp->fstat & 0xFFFF;
- supply_register_by_name ("fstat", &val);
-
- /* Generate the form of ftag data that GDB expects. */
- top = (fp->fstat >> 11) & 0x7;
- val = 0;
- for (i = 7; i >= 0; i--)
- {
- int tag;
- if (val & (1 << i))
- tag = i387_ftag (fp, (i + 8 - top) % 8);
- else
- tag = 3;
- val |= tag << (2 * i);
- }
- supply_register_by_name ("ftag", &val);
-
- val = fp->fiseg & 0xFFFF;
- supply_register_by_name ("fiseg", &val);
-
- val = fp->foseg & 0xFFFF;
- supply_register_by_name ("foseg", &val);
-
- val = (fp->fop) & 0x7FF;
- supply_register_by_name ("fop", &val);
-}