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s390-tdep.h
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1/* Target-dependent code for s390.
2
3 Copyright (C) 2003-2023 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 S390_TDEP_H
21#define S390_TDEP_H
22
23#include "prologue-value.h"
24#include "gdbarch.h"
25
32
38
39/* The tdep structure. */
40
42{
43 /* Target description. */
44 const struct target_desc *tdesc = nullptr;
45
46 /* ABI version. */
47 enum s390_abi_kind abi {};
48
49 /* Vector ABI. */
50 enum s390_vector_abi_kind vector_abi {};
51
52 /* Pseudo register numbers. */
54 int pc_regnum = 0;
55 int cc_regnum = 0;
57
58 bool have_upper = 0;
59 bool have_linux_v1 = 0;
60 bool have_linux_v2 = 0;
61 bool have_tdb = 0;
62 bool have_vx = 0;
63 bool have_gs = 0;
64
65 /* Hook to record OS specific systemcall. */
66 int (*s390_syscall_record) (struct regcache *regcache, LONGEST svc_number)
67 = nullptr;
68};
69
70using s390_gdbarch_tdep_up = std::unique_ptr<s390_gdbarch_tdep>;
71
72/* Decoding S/390 instructions. */
73
74/* Named opcode values for the S/390 instructions we recognize. Some
75 instructions have their opcode split across two fields; those are the
76 op1_* and op2_* enums. */
77
78enum
79{
80 op1_lhi = 0xa7, op2_lhi = 0x08,
81 op1_lghi = 0xa7, op2_lghi = 0x09,
82 op1_lgfi = 0xc0, op2_lgfi = 0x01,
83 op_lr = 0x18,
84 op_lgr = 0xb904,
85 op_l = 0x58,
86 op1_ly = 0xe3, op2_ly = 0x58,
87 op1_lg = 0xe3, op2_lg = 0x04,
88 op_lm = 0x98,
89 op1_lmy = 0xeb, op2_lmy = 0x98,
90 op1_lmg = 0xeb, op2_lmg = 0x04,
91 op_st = 0x50,
92 op1_sty = 0xe3, op2_sty = 0x50,
93 op1_stg = 0xe3, op2_stg = 0x24,
94 op_std = 0x60,
95 op_stm = 0x90,
96 op1_stmy = 0xeb, op2_stmy = 0x90,
97 op1_stmg = 0xeb, op2_stmg = 0x24,
98 op1_aghi = 0xa7, op2_aghi = 0x0b,
99 op1_ahi = 0xa7, op2_ahi = 0x0a,
100 op1_agfi = 0xc2, op2_agfi = 0x08,
101 op1_afi = 0xc2, op2_afi = 0x09,
102 op1_algfi= 0xc2, op2_algfi= 0x0a,
103 op1_alfi = 0xc2, op2_alfi = 0x0b,
104 op_ar = 0x1a,
105 op_agr = 0xb908,
106 op_a = 0x5a,
107 op1_ay = 0xe3, op2_ay = 0x5a,
108 op1_ag = 0xe3, op2_ag = 0x08,
109 op1_slgfi= 0xc2, op2_slgfi= 0x04,
110 op1_slfi = 0xc2, op2_slfi = 0x05,
111 op_sr = 0x1b,
112 op_sgr = 0xb909,
113 op_s = 0x5b,
114 op1_sy = 0xe3, op2_sy = 0x5b,
115 op1_sg = 0xe3, op2_sg = 0x09,
116 op_nr = 0x14,
117 op_ngr = 0xb980,
118 op_la = 0x41,
119 op1_lay = 0xe3, op2_lay = 0x71,
120 op1_larl = 0xc0, op2_larl = 0x00,
121 op_basr = 0x0d,
122 op_bas = 0x4d,
123 op_bcr = 0x07,
124 op_bc = 0x47,
125 op_bctr = 0x06,
126 op_bctgr = 0xb946,
127 op_bct = 0x46,
128 op1_bctg = 0xe3, op2_bctg = 0x46,
129 op_bxh = 0x86,
130 op1_bxhg = 0xeb, op2_bxhg = 0x44,
131 op_bxle = 0x87,
132 op1_bxleg= 0xeb, op2_bxleg= 0x45,
133 op1_bras = 0xa7, op2_bras = 0x05,
134 op1_brasl= 0xc0, op2_brasl= 0x05,
135 op1_brc = 0xa7, op2_brc = 0x04,
136 op1_brcl = 0xc0, op2_brcl = 0x04,
137 op1_brct = 0xa7, op2_brct = 0x06,
138 op1_brctg= 0xa7, op2_brctg= 0x07,
139 op_brxh = 0x84,
140 op1_brxhg= 0xec, op2_brxhg= 0x44,
141 op_brxle = 0x85,
142 op1_brxlg= 0xec, op2_brxlg= 0x45,
143 op_svc = 0x0a,
144};
145
146/* Hardware capabilities. */
147
148#ifndef HWCAP_S390_HIGH_GPRS
149#define HWCAP_S390_HIGH_GPRS 512
150#endif
151
152#ifndef HWCAP_S390_TE
153#define HWCAP_S390_TE 1024
154#endif
155
156#ifndef HWCAP_S390_VX
157#define HWCAP_S390_VX 2048
158#endif
159
160#ifndef HWCAP_S390_GS
161#define HWCAP_S390_GS 16384
162#endif
163
164/* Register information. */
165
166/* Program Status Word. */
167#define S390_PSWM_REGNUM 0
168#define S390_PSWA_REGNUM 1
169/* General Purpose Registers. */
170#define S390_R0_REGNUM 2
171#define S390_R1_REGNUM 3
172#define S390_R2_REGNUM 4
173#define S390_R3_REGNUM 5
174#define S390_R4_REGNUM 6
175#define S390_R5_REGNUM 7
176#define S390_R6_REGNUM 8
177#define S390_R7_REGNUM 9
178#define S390_R8_REGNUM 10
179#define S390_R9_REGNUM 11
180#define S390_R10_REGNUM 12
181#define S390_R11_REGNUM 13
182#define S390_R12_REGNUM 14
183#define S390_R13_REGNUM 15
184#define S390_R14_REGNUM 16
185#define S390_R15_REGNUM 17
186/* Access Registers. */
187#define S390_A0_REGNUM 18
188#define S390_A1_REGNUM 19
189#define S390_A2_REGNUM 20
190#define S390_A3_REGNUM 21
191#define S390_A4_REGNUM 22
192#define S390_A5_REGNUM 23
193#define S390_A6_REGNUM 24
194#define S390_A7_REGNUM 25
195#define S390_A8_REGNUM 26
196#define S390_A9_REGNUM 27
197#define S390_A10_REGNUM 28
198#define S390_A11_REGNUM 29
199#define S390_A12_REGNUM 30
200#define S390_A13_REGNUM 31
201#define S390_A14_REGNUM 32
202#define S390_A15_REGNUM 33
203/* Floating Point Control Word. */
204#define S390_FPC_REGNUM 34
205/* Floating Point Registers. */
206#define S390_F0_REGNUM 35
207#define S390_F1_REGNUM 36
208#define S390_F2_REGNUM 37
209#define S390_F3_REGNUM 38
210#define S390_F4_REGNUM 39
211#define S390_F5_REGNUM 40
212#define S390_F6_REGNUM 41
213#define S390_F7_REGNUM 42
214#define S390_F8_REGNUM 43
215#define S390_F9_REGNUM 44
216#define S390_F10_REGNUM 45
217#define S390_F11_REGNUM 46
218#define S390_F12_REGNUM 47
219#define S390_F13_REGNUM 48
220#define S390_F14_REGNUM 49
221#define S390_F15_REGNUM 50
222/* General Purpose Register Upper Halves. */
223#define S390_R0_UPPER_REGNUM 51
224#define S390_R1_UPPER_REGNUM 52
225#define S390_R2_UPPER_REGNUM 53
226#define S390_R3_UPPER_REGNUM 54
227#define S390_R4_UPPER_REGNUM 55
228#define S390_R5_UPPER_REGNUM 56
229#define S390_R6_UPPER_REGNUM 57
230#define S390_R7_UPPER_REGNUM 58
231#define S390_R8_UPPER_REGNUM 59
232#define S390_R9_UPPER_REGNUM 60
233#define S390_R10_UPPER_REGNUM 61
234#define S390_R11_UPPER_REGNUM 62
235#define S390_R12_UPPER_REGNUM 63
236#define S390_R13_UPPER_REGNUM 64
237#define S390_R14_UPPER_REGNUM 65
238#define S390_R15_UPPER_REGNUM 66
239/* GNU/Linux-specific optional registers. */
240#define S390_ORIG_R2_REGNUM 67
241#define S390_LAST_BREAK_REGNUM 68
242#define S390_SYSTEM_CALL_REGNUM 69
243/* Transaction diagnostic block. */
244#define S390_TDB_DWORD0_REGNUM 70
245#define S390_TDB_ABORT_CODE_REGNUM 71
246#define S390_TDB_CONFLICT_TOKEN_REGNUM 72
247#define S390_TDB_ATIA_REGNUM 73
248#define S390_TDB_R0_REGNUM 74
249#define S390_TDB_R1_REGNUM 75
250#define S390_TDB_R2_REGNUM 76
251#define S390_TDB_R3_REGNUM 77
252#define S390_TDB_R4_REGNUM 78
253#define S390_TDB_R5_REGNUM 79
254#define S390_TDB_R6_REGNUM 80
255#define S390_TDB_R7_REGNUM 81
256#define S390_TDB_R8_REGNUM 82
257#define S390_TDB_R9_REGNUM 83
258#define S390_TDB_R10_REGNUM 84
259#define S390_TDB_R11_REGNUM 85
260#define S390_TDB_R12_REGNUM 86
261#define S390_TDB_R13_REGNUM 87
262#define S390_TDB_R14_REGNUM 88
263#define S390_TDB_R15_REGNUM 89
264/* Vector registers. */
265#define S390_V0_LOWER_REGNUM 90
266#define S390_V1_LOWER_REGNUM 91
267#define S390_V2_LOWER_REGNUM 92
268#define S390_V3_LOWER_REGNUM 93
269#define S390_V4_LOWER_REGNUM 94
270#define S390_V5_LOWER_REGNUM 95
271#define S390_V6_LOWER_REGNUM 96
272#define S390_V7_LOWER_REGNUM 97
273#define S390_V8_LOWER_REGNUM 98
274#define S390_V9_LOWER_REGNUM 99
275#define S390_V10_LOWER_REGNUM 100
276#define S390_V11_LOWER_REGNUM 101
277#define S390_V12_LOWER_REGNUM 102
278#define S390_V13_LOWER_REGNUM 103
279#define S390_V14_LOWER_REGNUM 104
280#define S390_V15_LOWER_REGNUM 105
281#define S390_V16_REGNUM 106
282#define S390_V17_REGNUM 107
283#define S390_V18_REGNUM 108
284#define S390_V19_REGNUM 109
285#define S390_V20_REGNUM 110
286#define S390_V21_REGNUM 111
287#define S390_V22_REGNUM 112
288#define S390_V23_REGNUM 113
289#define S390_V24_REGNUM 114
290#define S390_V25_REGNUM 115
291#define S390_V26_REGNUM 116
292#define S390_V27_REGNUM 117
293#define S390_V28_REGNUM 118
294#define S390_V29_REGNUM 119
295#define S390_V30_REGNUM 120
296#define S390_V31_REGNUM 121
297#define S390_GSD_REGNUM 122
298#define S390_GSSM_REGNUM 123
299#define S390_GSEPLA_REGNUM 124
300#define S390_BC_GSD_REGNUM 125
301#define S390_BC_GSSM_REGNUM 126
302#define S390_BC_GSEPLA_REGNUM 127
303/* Total. */
304#define S390_NUM_REGS 128
305
306#define S390_NUM_GPRS 16
307#define S390_NUM_FPRS 16
308
309#define S390_MAX_INSTR_SIZE 6
310
311/* Special register usage. */
312#define S390_SP_REGNUM S390_R15_REGNUM
313#define S390_RETADDR_REGNUM S390_R14_REGNUM
314#define S390_FRAME_REGNUM S390_R11_REGNUM
315
316/* Frame unwinding. */
317
319 (frame_info_ptr this_frame, struct trad_frame_saved_reg saved_regs[],
320 int regnum);
321
322extern const struct target_desc *tdesc_s390_linux32;
323extern const struct target_desc *tdesc_s390x_linux64;
324
325#endif /* S390_TDEP_H */
int regnum
std::unique_ptr< s390_gdbarch_tdep > s390_gdbarch_tdep_up
Definition s390-tdep.h:70
@ op_stm
Definition s390-tdep.h:95
@ op_l
Definition s390-tdep.h:85
@ op_sgr
Definition s390-tdep.h:112
@ op2_ly
Definition s390-tdep.h:86
@ op1_lgfi
Definition s390-tdep.h:82
@ op1_lay
Definition s390-tdep.h:119
@ op2_stmy
Definition s390-tdep.h:96
@ op_agr
Definition s390-tdep.h:105
@ op1_lghi
Definition s390-tdep.h:81
@ op2_lmg
Definition s390-tdep.h:90
@ op2_slfi
Definition s390-tdep.h:110
@ op1_bctg
Definition s390-tdep.h:128
@ op2_brcl
Definition s390-tdep.h:136
@ op1_stg
Definition s390-tdep.h:93
@ op1_sty
Definition s390-tdep.h:92
@ op1_ahi
Definition s390-tdep.h:99
@ op_brxh
Definition s390-tdep.h:139
@ op1_brxhg
Definition s390-tdep.h:140
@ op1_bxhg
Definition s390-tdep.h:130
@ op2_algfi
Definition s390-tdep.h:102
@ op1_sg
Definition s390-tdep.h:115
@ op2_sty
Definition s390-tdep.h:92
@ op_la
Definition s390-tdep.h:118
@ op1_bras
Definition s390-tdep.h:133
@ op1_ag
Definition s390-tdep.h:108
@ op2_lg
Definition s390-tdep.h:87
@ op2_lhi
Definition s390-tdep.h:80
@ op2_larl
Definition s390-tdep.h:120
@ op_nr
Definition s390-tdep.h:116
@ op_ngr
Definition s390-tdep.h:117
@ op1_algfi
Definition s390-tdep.h:102
@ op1_brc
Definition s390-tdep.h:135
@ op_st
Definition s390-tdep.h:91
@ op2_agfi
Definition s390-tdep.h:100
@ op2_bxleg
Definition s390-tdep.h:132
@ op1_lmg
Definition s390-tdep.h:90
@ op2_lmy
Definition s390-tdep.h:89
@ op2_brxhg
Definition s390-tdep.h:140
@ op2_brxlg
Definition s390-tdep.h:142
@ op1_afi
Definition s390-tdep.h:101
@ op1_slfi
Definition s390-tdep.h:110
@ op2_stmg
Definition s390-tdep.h:97
@ op1_brasl
Definition s390-tdep.h:134
@ op1_stmy
Definition s390-tdep.h:96
@ op1_ly
Definition s390-tdep.h:86
@ op_std
Definition s390-tdep.h:94
@ op_lm
Definition s390-tdep.h:88
@ op_brxle
Definition s390-tdep.h:141
@ op1_larl
Definition s390-tdep.h:120
@ op2_bctg
Definition s390-tdep.h:128
@ op_bcr
Definition s390-tdep.h:123
@ op1_stmg
Definition s390-tdep.h:97
@ op_bxh
Definition s390-tdep.h:129
@ op_bas
Definition s390-tdep.h:122
@ op2_stg
Definition s390-tdep.h:93
@ op1_brctg
Definition s390-tdep.h:138
@ op_sr
Definition s390-tdep.h:111
@ op1_alfi
Definition s390-tdep.h:103
@ op_lgr
Definition s390-tdep.h:84
@ op_lr
Definition s390-tdep.h:83
@ op1_lmy
Definition s390-tdep.h:89
@ op2_aghi
Definition s390-tdep.h:98
@ op_bctgr
Definition s390-tdep.h:126
@ op2_brct
Definition s390-tdep.h:137
@ op2_bras
Definition s390-tdep.h:133
@ op1_bxleg
Definition s390-tdep.h:132
@ op_basr
Definition s390-tdep.h:121
@ op1_sy
Definition s390-tdep.h:114
@ op2_ahi
Definition s390-tdep.h:99
@ op1_brcl
Definition s390-tdep.h:136
@ op2_brc
Definition s390-tdep.h:135
@ op2_ay
Definition s390-tdep.h:107
@ op2_brasl
Definition s390-tdep.h:134
@ op2_sg
Definition s390-tdep.h:115
@ op1_agfi
Definition s390-tdep.h:100
@ op_s
Definition s390-tdep.h:113
@ op_bxle
Definition s390-tdep.h:131
@ op_svc
Definition s390-tdep.h:143
@ op2_slgfi
Definition s390-tdep.h:109
@ op2_lay
Definition s390-tdep.h:119
@ op1_brct
Definition s390-tdep.h:137
@ op2_alfi
Definition s390-tdep.h:103
@ op1_ay
Definition s390-tdep.h:107
@ op_bc
Definition s390-tdep.h:124
@ op1_lhi
Definition s390-tdep.h:80
@ op1_lg
Definition s390-tdep.h:87
@ op1_aghi
Definition s390-tdep.h:98
@ op2_ag
Definition s390-tdep.h:108
@ op2_brctg
Definition s390-tdep.h:138
@ op2_sy
Definition s390-tdep.h:114
@ op_bctr
Definition s390-tdep.h:125
@ op_ar
Definition s390-tdep.h:104
@ op_bct
Definition s390-tdep.h:127
@ op_a
Definition s390-tdep.h:106
@ op2_lghi
Definition s390-tdep.h:81
@ op2_bxhg
Definition s390-tdep.h:130
@ op2_afi
Definition s390-tdep.h:101
@ op1_slgfi
Definition s390-tdep.h:109
@ op2_lgfi
Definition s390-tdep.h:82
@ op1_brxlg
Definition s390-tdep.h:142
const struct target_desc * tdesc_s390x_linux64
s390_abi_kind
Definition s390-tdep.h:27
@ ABI_NONE
Definition s390-tdep.h:28
@ ABI_LINUX_ZSERIES
Definition s390-tdep.h:30
@ ABI_LINUX_S390
Definition s390-tdep.h:29
struct value * s390_trad_frame_prev_register(frame_info_ptr this_frame, struct trad_frame_saved_reg saved_regs[], int regnum)
Definition s390-tdep.c:2315
s390_vector_abi_kind
Definition s390-tdep.h:34
@ S390_VECTOR_ABI_NONE
Definition s390-tdep.h:35
@ S390_VECTOR_ABI_128
Definition s390-tdep.h:36
const struct target_desc * tdesc_s390_linux32
Definition s390-linux32.c:8
const struct target_desc * tdesc
Definition s390-tdep.h:44
int(* s390_syscall_record)(struct regcache *regcache, LONGEST svc_number)
Definition s390-tdep.h:66
Definition value.h:130