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/tmp/gdb-8.1/gdb/i387-tdep.h
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1 /* Target-dependent code for the i387.
2
3 Copyright (C) 2000-2018 Free Software Foundation, Inc.
4
5 This file is part of GDB.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20 #ifndef I387_TDEP_H
21 #define I387_TDEP_H
22
23 struct gdbarch;
24 struct frame_info;
25 struct regcache;
26 struct type;
27 struct ui_file;
28
29 /* Number of i387 floating point registers. */
30 #define I387_NUM_REGS 16
31
32 #define I387_ST0_REGNUM(tdep) ((tdep)->st0_regnum)
33 #define I387_NUM_XMM_REGS(tdep) ((tdep)->num_xmm_regs)
34 #define I387_NUM_XMM_AVX512_REGS(tdep) ((tdep)->num_xmm_avx512_regs)
35 #define I387_MM0_REGNUM(tdep) ((tdep)->mm0_regnum)
36 #define I387_NUM_YMM_REGS(tdep) ((tdep)->num_ymm_regs)
37 #define I387_YMM0H_REGNUM(tdep) ((tdep)->ymm0h_regnum)
38
39 #define I387_BND0R_REGNUM(tdep) ((tdep)->bnd0r_regnum)
40 #define I387_BNDCFGU_REGNUM(tdep) ((tdep)->bndcfgu_regnum)
41
42 /* Set of constants used for 32 and 64-bit. */
43 #define I387_NUM_MPX_REGS 6
44 #define I387_NUM_BND_REGS 4
45 #define I387_NUM_MPX_CTRL_REGS 2
46 #define I387_NUM_K_REGS 8
47 #define I387_NUM_PKEYS_REGS 1
48
49 #define I387_PKRU_REGNUM(tdep) ((tdep)->pkru_regnum)
50 #define I387_K0_REGNUM(tdep) ((tdep)->k0_regnum)
51 #define I387_NUM_ZMMH_REGS(tdep) ((tdep)->num_zmm_regs)
52 #define I387_ZMM0H_REGNUM(tdep) ((tdep)->zmm0h_regnum)
53 #define I387_NUM_YMM_AVX512_REGS(tdep) ((tdep)->num_ymm_avx512_regs)
54 #define I387_YMM16H_REGNUM(tdep) ((tdep)->ymm16h_regnum)
55
56 #define I387_FCTRL_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 8)
57 #define I387_FSTAT_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 1)
58 #define I387_FTAG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 2)
59 #define I387_FISEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 3)
60 #define I387_FIOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 4)
61 #define I387_FOSEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 5)
62 #define I387_FOOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 6)
63 #define I387_FOP_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 7)
64 #define I387_XMM0_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 16)
65 #define I387_XMM16_REGNUM(tdep) ((tdep)->xmm16_regnum)
66 #define I387_MXCSR_REGNUM(tdep) \
67 (I387_XMM0_REGNUM (tdep) + I387_NUM_XMM_REGS (tdep))
68 #define I387_YMM0_REGNUM(tdep) (I387_MXCSR_REGNUM(tdep) + 1)
69 #define I387_YMMENDH_REGNUM(tdep) \
70 (I387_YMM0H_REGNUM (tdep) + I387_NUM_YMM_REGS (tdep))
71
72 #define I387_MPXEND_REGNUM(tdep) \
73 (I387_BND0R_REGNUM (tdep) + I387_NUM_MPX_REGS)
74
75 #define I387_KEND_REGNUM(tdep) \
76 (I387_K0_REGNUM (tdep) + I387_NUM_K_REGS)
77 #define I387_ZMMENDH_REGNUM(tdep) \
78 (I387_ZMM0H_REGNUM (tdep) + I387_NUM_ZMMH_REGS (tdep))
79 #define I387_YMMH_AVX512_END_REGNUM(tdep) \
80 (I387_YMM16H_REGNUM (tdep) + I387_NUM_YMM_AVX512_REGS (tdep))
81 #define I387_XMM_AVX512_END_REGNUM(tdep) \
82 (I387_XMM16_REGNUM (tdep) + I387_NUM_XMM_AVX512_REGS (tdep))
83
84 #define I387_PKEYSEND_REGNUM(tdep) \
85 (I387_PKRU_REGNUM (tdep) + I387_NUM_PKEYS_REGS)
86
87 /* Print out the i387 floating point state. */
88
89 extern void i387_print_float_info (struct gdbarch *gdbarch,
90 struct ui_file *file,
91 struct frame_info *frame,
92 const char *args);
93
94 /* Return nonzero if a value of type TYPE stored in register REGNUM
95 needs any special handling. */
96
97 extern int i387_convert_register_p (struct gdbarch *gdbarch, int regnum,
98 struct type *type);
99
100 /* Read a value of type TYPE from register REGNUM in frame FRAME, and
101 return its contents in TO. */
102
103 extern int i387_register_to_value (struct frame_info *frame, int regnum,
104 struct type *type, gdb_byte *to,
105 int *optimizedp, int *unavailablep);
106
107 /* Write the contents FROM of a value of type TYPE into register
108 REGNUM in frame FRAME. */
109
110 extern void i387_value_to_register (struct frame_info *frame, int regnum,
111 struct type *type, const gdb_byte *from);
112
113
114 /* Size of the memory area use by the 'fsave' and 'fxsave'
115 instructions. */
116 #define I387_SIZEOF_FSAVE 108
117 #define I387_SIZEOF_FXSAVE 512
118
119 /* Fill register REGNUM in REGCACHE with the appropriate value from
120 *FSAVE. This function masks off any of the reserved bits in
121 *FSAVE. */
122
123 extern void i387_supply_fsave (struct regcache *regcache, int regnum,
124 const void *fsave);
125
126 /* Fill register REGNUM (if it is a floating-point register) in *FSAVE
127 with the value from REGCACHE. If REGNUM is -1, do this for all
128 registers. This function doesn't touch any of the reserved bits in
129 *FSAVE. */
130
131 extern void i387_collect_fsave (const struct regcache *regcache, int regnum,
132 void *fsave);
133
134 /* Fill register REGNUM in REGCACHE with the appropriate
135 floating-point or SSE register value from *FXSAVE. This function
136 masks off any of the reserved bits in *FXSAVE. */
137
138 extern void i387_supply_fxsave (struct regcache *regcache, int regnum,
139 const void *fxsave);
140
141 /* Similar to i387_supply_fxsave, but use XSAVE extended state. */
142
143 extern void i387_supply_xsave (struct regcache *regcache, int regnum,
144 const void *xsave);
145
146 /* Fill register REGNUM (if it is a floating-point or SSE register) in
147 *FXSAVE with the value from REGCACHE. If REGNUM is -1, do this for
148 all registers. This function doesn't touch any of the reserved
149 bits in *FXSAVE. */
150
151 extern void i387_collect_fxsave (const struct regcache *regcache, int regnum,
152 void *fxsave);
153
154 /* Similar to i387_collect_fxsave, but use XSAVE extended state. */
155
156 extern void i387_collect_xsave (const struct regcache *regcache,
157 int regnum, void *xsave, int gcore);
158
159 /* Prepare the FPU stack in REGCACHE for a function return. */
160
161 extern void i387_return_value (struct gdbarch *gdbarch,
162 struct regcache *regcache);
163
164 /* Set all bnd registers to the INIT state. INIT state means
165 all memory range can be accessed. */
166 extern void i387_reset_bnd_regs (struct gdbarch *gdbarch,
167 struct regcache *regcache);
168 #endif /* i387-tdep.h */
gdbarch
Definition: gdbarch.c:127
i387_supply_fxsave
void i387_supply_fxsave(struct regcache *regcache, int regnum, const void *fxsave)
Definition: i387-tdep.c:586
i387_convert_register_p
int i387_convert_register_p(struct gdbarch *gdbarch, int regnum, struct type *type)
Definition: i387-tdep.c:327
i387_value_to_register
void i387_value_to_register(struct frame_info *frame, int regnum, struct type *type, const gdb_byte *from)
Definition: i387-tdep.c:381
frame_info
Definition: frame.c:85
i387_print_float_info
void i387_print_float_info(struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args)
Definition: i387-tdep.c:204
ui_file
Definition: ui-file.h:26
i387_reset_bnd_regs
void i387_reset_bnd_regs(struct gdbarch *gdbarch, struct regcache *regcache)
Definition: i387-tdep.c:1858
type
Definition: gdbtypes.h:749
regnum
int regnum
Definition: aarch64-tdep.c:77
i387_return_value
void i387_return_value(struct gdbarch *gdbarch, struct regcache *regcache)
Definition: i387-tdep.c:1835
i387_collect_fxsave
void i387_collect_fxsave(const struct regcache *regcache, int regnum, void *fxsave)
Definition: i387-tdep.c:669
gdb_byte
bfd_byte gdb_byte
Definition: common-types.h:38
i387_collect_xsave
void i387_collect_xsave(const struct regcache *regcache, int regnum, void *xsave, int gcore)
Definition: i387-tdep.c:1306
i387_collect_fsave
void i387_collect_fsave(const struct regcache *regcache, int regnum, void *fsave)
Definition: i387-tdep.c:493
i387_supply_fsave
void i387_supply_fsave(struct regcache *regcache, int regnum, const void *fsave)
Definition: i387-tdep.c:438
regcache
Definition: regcache.h:232
i387_register_to_value
int i387_register_to_value(struct frame_info *frame, int regnum, struct type *type, gdb_byte *to, int *optimizedp, int *unavailablep)
Definition: i387-tdep.c:348
i387_supply_xsave
void i387_supply_xsave(struct regcache *regcache, int regnum, const void *xsave)
Definition: i387-tdep.c:898