139 lines
4.9 KiB
C
139 lines
4.9 KiB
C
/* Target-dependent code for the i387.
|
||
|
||
Copyright (C) 2000-2014 Free Software Foundation, Inc.
|
||
|
||
This file is part of GDB.
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 3 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
||
|
||
#ifndef I387_TDEP_H
|
||
#define I387_TDEP_H
|
||
|
||
struct gdbarch;
|
||
struct frame_info;
|
||
struct regcache;
|
||
struct type;
|
||
struct ui_file;
|
||
|
||
/* Number of i387 floating point registers. */
|
||
#define I387_NUM_REGS 16
|
||
|
||
#define I387_ST0_REGNUM(tdep) ((tdep)->st0_regnum)
|
||
#define I387_NUM_XMM_REGS(tdep) ((tdep)->num_xmm_regs)
|
||
#define I387_MM0_REGNUM(tdep) ((tdep)->mm0_regnum)
|
||
#define I387_NUM_YMM_REGS(tdep) ((tdep)->num_ymm_regs)
|
||
#define I387_YMM0H_REGNUM(tdep) ((tdep)->ymm0h_regnum)
|
||
#define I387_BND0R_REGNUM(tdep) ((tdep)->bnd0r_regnum)
|
||
#define I387_BNDCFGU_REGNUM(tdep) ((tdep)->bndcfgu_regnum)
|
||
|
||
/* Set of constants used for 32 and 64-bit. */
|
||
#define I387_NUM_MPX_REGS 6
|
||
#define I387_NUM_BND_REGS 4
|
||
#define I387_NUM_MPX_CTRL_REGS 2
|
||
|
||
#define I387_FCTRL_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 8)
|
||
#define I387_FSTAT_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 1)
|
||
#define I387_FTAG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 2)
|
||
#define I387_FISEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 3)
|
||
#define I387_FIOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 4)
|
||
#define I387_FOSEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 5)
|
||
#define I387_FOOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 6)
|
||
#define I387_FOP_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 7)
|
||
#define I387_XMM0_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 16)
|
||
#define I387_MXCSR_REGNUM(tdep) \
|
||
(I387_XMM0_REGNUM (tdep) + I387_NUM_XMM_REGS (tdep))
|
||
#define I387_YMMENDH_REGNUM(tdep) \
|
||
(I387_YMM0H_REGNUM (tdep) + I387_NUM_YMM_REGS (tdep))
|
||
#define I387_MPXEND_REGNUM(tdep) \
|
||
(I387_BND0R_REGNUM (tdep) + I387_NUM_MPX_REGS)
|
||
|
||
/* Print out the i387 floating point state. */
|
||
|
||
extern void i387_print_float_info (struct gdbarch *gdbarch,
|
||
struct ui_file *file,
|
||
struct frame_info *frame,
|
||
const char *args);
|
||
|
||
/* Return nonzero if a value of type TYPE stored in register REGNUM
|
||
needs any special handling. */
|
||
|
||
extern int i387_convert_register_p (struct gdbarch *gdbarch, int regnum,
|
||
struct type *type);
|
||
|
||
/* Read a value of type TYPE from register REGNUM in frame FRAME, and
|
||
return its contents in TO. */
|
||
|
||
extern int i387_register_to_value (struct frame_info *frame, int regnum,
|
||
struct type *type, gdb_byte *to,
|
||
int *optimizedp, int *unavailablep);
|
||
|
||
/* Write the contents FROM of a value of type TYPE into register
|
||
REGNUM in frame FRAME. */
|
||
|
||
extern void i387_value_to_register (struct frame_info *frame, int regnum,
|
||
struct type *type, const gdb_byte *from);
|
||
|
||
|
||
/* Size of the memory area use by the 'fsave' and 'fxsave'
|
||
instructions. */
|
||
#define I387_SIZEOF_FSAVE 108
|
||
#define I387_SIZEOF_FXSAVE 512
|
||
|
||
/* Fill register REGNUM in REGCACHE with the appropriate value from
|
||
*FSAVE. This function masks off any of the reserved bits in
|
||
*FSAVE. */
|
||
|
||
extern void i387_supply_fsave (struct regcache *regcache, int regnum,
|
||
const void *fsave);
|
||
|
||
/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
|
||
with the value from REGCACHE. If REGNUM is -1, do this for all
|
||
registers. This function doesn't touch any of the reserved bits in
|
||
*FSAVE. */
|
||
|
||
extern void i387_collect_fsave (const struct regcache *regcache, int regnum,
|
||
void *fsave);
|
||
|
||
/* Fill register REGNUM in REGCACHE with the appropriate
|
||
floating-point or SSE register value from *FXSAVE. This function
|
||
masks off any of the reserved bits in *FXSAVE. */
|
||
|
||
extern void i387_supply_fxsave (struct regcache *regcache, int regnum,
|
||
const void *fxsave);
|
||
|
||
/* Similar to i387_supply_fxsave, but use XSAVE extended state. */
|
||
|
||
extern void i387_supply_xsave (struct regcache *regcache, int regnum,
|
||
const void *xsave);
|
||
|
||
/* Fill register REGNUM (if it is a floating-point or SSE register) in
|
||
*FXSAVE with the value from REGCACHE. If REGNUM is -1, do this for
|
||
all registers. This function doesn't touch any of the reserved
|
||
bits in *FXSAVE. */
|
||
|
||
extern void i387_collect_fxsave (const struct regcache *regcache, int regnum,
|
||
void *fxsave);
|
||
|
||
/* Similar to i387_collect_fxsave, but use XSAVE extended state. */
|
||
|
||
extern void i387_collect_xsave (const struct regcache *regcache,
|
||
int regnum, void *xsave, int gcore);
|
||
|
||
/* Prepare the FPU stack in REGCACHE for a function return. */
|
||
|
||
extern void i387_return_value (struct gdbarch *gdbarch,
|
||
struct regcache *regcache);
|
||
|
||
#endif /* i387-tdep.h */
|