Commit | Line | Data |
---|---|---|
87abef63 | 1 | /* |
fca08f32 | 2 | * arch/arm/probes/decode-thumb.c |
87abef63 DL |
3 | * |
4 | * Copyright (C) 2011 Jon Medhurst <tixy@yxit.co.uk>. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <linux/stddef.h> | |
12 | #include <linux/kernel.h> | |
87abef63 DL |
13 | #include <linux/module.h> |
14 | ||
fca08f32 WN |
15 | #include "decode.h" |
16 | #include "decode-thumb.h" | |
87abef63 | 17 | |
87abef63 DL |
18 | |
19 | static const union decode_item t32_table_1110_100x_x0xx[] = { | |
20 | /* Load/store multiple instructions */ | |
21 | ||
22 | /* Rn is PC 1110 100x x0xx 1111 xxxx xxxx xxxx xxxx */ | |
23 | DECODE_REJECT (0xfe4f0000, 0xe80f0000), | |
24 | ||
25 | /* SRS 1110 1000 00x0 xxxx xxxx xxxx xxxx xxxx */ | |
26 | /* RFE 1110 1000 00x1 xxxx xxxx xxxx xxxx xxxx */ | |
27 | DECODE_REJECT (0xffc00000, 0xe8000000), | |
28 | /* SRS 1110 1001 10x0 xxxx xxxx xxxx xxxx xxxx */ | |
29 | /* RFE 1110 1001 10x1 xxxx xxxx xxxx xxxx xxxx */ | |
30 | DECODE_REJECT (0xffc00000, 0xe9800000), | |
31 | ||
32 | /* STM Rn, {...pc} 1110 100x x0x0 xxxx 1xxx xxxx xxxx xxxx */ | |
33 | DECODE_REJECT (0xfe508000, 0xe8008000), | |
34 | /* LDM Rn, {...lr,pc} 1110 100x x0x1 xxxx 11xx xxxx xxxx xxxx */ | |
35 | DECODE_REJECT (0xfe50c000, 0xe810c000), | |
36 | /* LDM/STM Rn, {...sp} 1110 100x x0xx xxxx xx1x xxxx xxxx xxxx */ | |
37 | DECODE_REJECT (0xfe402000, 0xe8002000), | |
38 | ||
39 | /* STMIA 1110 1000 10x0 xxxx xxxx xxxx xxxx xxxx */ | |
40 | /* LDMIA 1110 1000 10x1 xxxx xxxx xxxx xxxx xxxx */ | |
41 | /* STMDB 1110 1001 00x0 xxxx xxxx xxxx xxxx xxxx */ | |
42 | /* LDMDB 1110 1001 00x1 xxxx xxxx xxxx xxxx xxxx */ | |
3e6cd394 | 43 | DECODE_CUSTOM (0xfe400000, 0xe8000000, PROBES_T32_LDMSTM), |
87abef63 DL |
44 | |
45 | DECODE_END | |
46 | }; | |
47 | ||
48 | static const union decode_item t32_table_1110_100x_x1xx[] = { | |
49 | /* Load/store dual, load/store exclusive, table branch */ | |
50 | ||
51 | /* STRD (immediate) 1110 1000 x110 xxxx xxxx xxxx xxxx xxxx */ | |
52 | /* LDRD (immediate) 1110 1000 x111 xxxx xxxx xxxx xxxx xxxx */ | |
53 | DECODE_OR (0xff600000, 0xe8600000), | |
54 | /* STRD (immediate) 1110 1001 x1x0 xxxx xxxx xxxx xxxx xxxx */ | |
55 | /* LDRD (immediate) 1110 1001 x1x1 xxxx xxxx xxxx xxxx xxxx */ | |
3e6cd394 | 56 | DECODE_EMULATEX (0xff400000, 0xe9400000, PROBES_T32_LDRDSTRD, |
87abef63 DL |
57 | REGS(NOPCWB, NOSPPC, NOSPPC, 0, 0)), |
58 | ||
59 | /* TBB 1110 1000 1101 xxxx xxxx xxxx 0000 xxxx */ | |
60 | /* TBH 1110 1000 1101 xxxx xxxx xxxx 0001 xxxx */ | |
3e6cd394 | 61 | DECODE_SIMULATEX(0xfff000e0, 0xe8d00000, PROBES_T32_TABLE_BRANCH, |
87abef63 DL |
62 | REGS(NOSP, 0, 0, 0, NOSPPC)), |
63 | ||
64 | /* STREX 1110 1000 0100 xxxx xxxx xxxx xxxx xxxx */ | |
65 | /* LDREX 1110 1000 0101 xxxx xxxx xxxx xxxx xxxx */ | |
66 | /* STREXB 1110 1000 1100 xxxx xxxx xxxx 0100 xxxx */ | |
67 | /* STREXH 1110 1000 1100 xxxx xxxx xxxx 0101 xxxx */ | |
68 | /* STREXD 1110 1000 1100 xxxx xxxx xxxx 0111 xxxx */ | |
69 | /* LDREXB 1110 1000 1101 xxxx xxxx xxxx 0100 xxxx */ | |
70 | /* LDREXH 1110 1000 1101 xxxx xxxx xxxx 0101 xxxx */ | |
71 | /* LDREXD 1110 1000 1101 xxxx xxxx xxxx 0111 xxxx */ | |
72 | /* And unallocated instructions... */ | |
73 | DECODE_END | |
74 | }; | |
75 | ||
76 | static const union decode_item t32_table_1110_101x[] = { | |
77 | /* Data-processing (shifted register) */ | |
78 | ||
79 | /* TST 1110 1010 0001 xxxx xxxx 1111 xxxx xxxx */ | |
80 | /* TEQ 1110 1010 1001 xxxx xxxx 1111 xxxx xxxx */ | |
3e6cd394 | 81 | DECODE_EMULATEX (0xff700f00, 0xea100f00, PROBES_T32_TST, |
87abef63 DL |
82 | REGS(NOSPPC, 0, 0, 0, NOSPPC)), |
83 | ||
84 | /* CMN 1110 1011 0001 xxxx xxxx 1111 xxxx xxxx */ | |
85 | DECODE_OR (0xfff00f00, 0xeb100f00), | |
86 | /* CMP 1110 1011 1011 xxxx xxxx 1111 xxxx xxxx */ | |
3e6cd394 | 87 | DECODE_EMULATEX (0xfff00f00, 0xebb00f00, PROBES_T32_TST, |
87abef63 DL |
88 | REGS(NOPC, 0, 0, 0, NOSPPC)), |
89 | ||
90 | /* MOV 1110 1010 010x 1111 xxxx xxxx xxxx xxxx */ | |
91 | /* MVN 1110 1010 011x 1111 xxxx xxxx xxxx xxxx */ | |
3e6cd394 | 92 | DECODE_EMULATEX (0xffcf0000, 0xea4f0000, PROBES_T32_MOV, |
87abef63 DL |
93 | REGS(0, 0, NOSPPC, 0, NOSPPC)), |
94 | ||
95 | /* ??? 1110 1010 101x xxxx xxxx xxxx xxxx xxxx */ | |
96 | /* ??? 1110 1010 111x xxxx xxxx xxxx xxxx xxxx */ | |
97 | DECODE_REJECT (0xffa00000, 0xeaa00000), | |
98 | /* ??? 1110 1011 001x xxxx xxxx xxxx xxxx xxxx */ | |
99 | DECODE_REJECT (0xffe00000, 0xeb200000), | |
100 | /* ??? 1110 1011 100x xxxx xxxx xxxx xxxx xxxx */ | |
101 | DECODE_REJECT (0xffe00000, 0xeb800000), | |
102 | /* ??? 1110 1011 111x xxxx xxxx xxxx xxxx xxxx */ | |
103 | DECODE_REJECT (0xffe00000, 0xebe00000), | |
104 | ||
105 | /* ADD/SUB SP, SP, Rm, LSL #0..3 */ | |
106 | /* 1110 1011 x0xx 1101 x000 1101 xx00 xxxx */ | |
3e6cd394 | 107 | DECODE_EMULATEX (0xff4f7f30, 0xeb0d0d00, PROBES_T32_ADDSUB, |
87abef63 DL |
108 | REGS(SP, 0, SP, 0, NOSPPC)), |
109 | ||
110 | /* ADD/SUB SP, SP, Rm, shift */ | |
111 | /* 1110 1011 x0xx 1101 xxxx 1101 xxxx xxxx */ | |
112 | DECODE_REJECT (0xff4f0f00, 0xeb0d0d00), | |
113 | ||
114 | /* ADD/SUB Rd, SP, Rm, shift */ | |
115 | /* 1110 1011 x0xx 1101 xxxx xxxx xxxx xxxx */ | |
3e6cd394 | 116 | DECODE_EMULATEX (0xff4f0000, 0xeb0d0000, PROBES_T32_ADDSUB, |
87abef63 DL |
117 | REGS(SP, 0, NOPC, 0, NOSPPC)), |
118 | ||
119 | /* AND 1110 1010 000x xxxx xxxx xxxx xxxx xxxx */ | |
120 | /* BIC 1110 1010 001x xxxx xxxx xxxx xxxx xxxx */ | |
121 | /* ORR 1110 1010 010x xxxx xxxx xxxx xxxx xxxx */ | |
122 | /* ORN 1110 1010 011x xxxx xxxx xxxx xxxx xxxx */ | |
123 | /* EOR 1110 1010 100x xxxx xxxx xxxx xxxx xxxx */ | |
124 | /* PKH 1110 1010 110x xxxx xxxx xxxx xxxx xxxx */ | |
125 | /* ADD 1110 1011 000x xxxx xxxx xxxx xxxx xxxx */ | |
126 | /* ADC 1110 1011 010x xxxx xxxx xxxx xxxx xxxx */ | |
127 | /* SBC 1110 1011 011x xxxx xxxx xxxx xxxx xxxx */ | |
128 | /* SUB 1110 1011 101x xxxx xxxx xxxx xxxx xxxx */ | |
129 | /* RSB 1110 1011 110x xxxx xxxx xxxx xxxx xxxx */ | |
3e6cd394 | 130 | DECODE_EMULATEX (0xfe000000, 0xea000000, PROBES_T32_LOGICAL, |
87abef63 DL |
131 | REGS(NOSPPC, 0, NOSPPC, 0, NOSPPC)), |
132 | ||
133 | DECODE_END | |
134 | }; | |
135 | ||
136 | static const union decode_item t32_table_1111_0x0x___0[] = { | |
137 | /* Data-processing (modified immediate) */ | |
138 | ||
139 | /* TST 1111 0x00 0001 xxxx 0xxx 1111 xxxx xxxx */ | |
140 | /* TEQ 1111 0x00 1001 xxxx 0xxx 1111 xxxx xxxx */ | |
3e6cd394 | 141 | DECODE_EMULATEX (0xfb708f00, 0xf0100f00, PROBES_T32_TST, |
87abef63 DL |
142 | REGS(NOSPPC, 0, 0, 0, 0)), |
143 | ||
144 | /* CMN 1111 0x01 0001 xxxx 0xxx 1111 xxxx xxxx */ | |
145 | DECODE_OR (0xfbf08f00, 0xf1100f00), | |
146 | /* CMP 1111 0x01 1011 xxxx 0xxx 1111 xxxx xxxx */ | |
3e6cd394 | 147 | DECODE_EMULATEX (0xfbf08f00, 0xf1b00f00, PROBES_T32_CMP, |
87abef63 DL |
148 | REGS(NOPC, 0, 0, 0, 0)), |
149 | ||
150 | /* MOV 1111 0x00 010x 1111 0xxx xxxx xxxx xxxx */ | |
151 | /* MVN 1111 0x00 011x 1111 0xxx xxxx xxxx xxxx */ | |
3e6cd394 | 152 | DECODE_EMULATEX (0xfbcf8000, 0xf04f0000, PROBES_T32_MOV, |
87abef63 DL |
153 | REGS(0, 0, NOSPPC, 0, 0)), |
154 | ||
155 | /* ??? 1111 0x00 101x xxxx 0xxx xxxx xxxx xxxx */ | |
156 | DECODE_REJECT (0xfbe08000, 0xf0a00000), | |
157 | /* ??? 1111 0x00 110x xxxx 0xxx xxxx xxxx xxxx */ | |
158 | /* ??? 1111 0x00 111x xxxx 0xxx xxxx xxxx xxxx */ | |
159 | DECODE_REJECT (0xfbc08000, 0xf0c00000), | |
160 | /* ??? 1111 0x01 001x xxxx 0xxx xxxx xxxx xxxx */ | |
161 | DECODE_REJECT (0xfbe08000, 0xf1200000), | |
162 | /* ??? 1111 0x01 100x xxxx 0xxx xxxx xxxx xxxx */ | |
163 | DECODE_REJECT (0xfbe08000, 0xf1800000), | |
164 | /* ??? 1111 0x01 111x xxxx 0xxx xxxx xxxx xxxx */ | |
165 | DECODE_REJECT (0xfbe08000, 0xf1e00000), | |
166 | ||
167 | /* ADD Rd, SP, #imm 1111 0x01 000x 1101 0xxx xxxx xxxx xxxx */ | |
168 | /* SUB Rd, SP, #imm 1111 0x01 101x 1101 0xxx xxxx xxxx xxxx */ | |
3e6cd394 | 169 | DECODE_EMULATEX (0xfb4f8000, 0xf10d0000, PROBES_T32_ADDSUB, |
87abef63 DL |
170 | REGS(SP, 0, NOPC, 0, 0)), |
171 | ||
172 | /* AND 1111 0x00 000x xxxx 0xxx xxxx xxxx xxxx */ | |
173 | /* BIC 1111 0x00 001x xxxx 0xxx xxxx xxxx xxxx */ | |
174 | /* ORR 1111 0x00 010x xxxx 0xxx xxxx xxxx xxxx */ | |
175 | /* ORN 1111 0x00 011x xxxx 0xxx xxxx xxxx xxxx */ | |
176 | /* EOR 1111 0x00 100x xxxx 0xxx xxxx xxxx xxxx */ | |
177 | /* ADD 1111 0x01 000x xxxx 0xxx xxxx xxxx xxxx */ | |
178 | /* ADC 1111 0x01 010x xxxx 0xxx xxxx xxxx xxxx */ | |
179 | /* SBC 1111 0x01 011x xxxx 0xxx xxxx xxxx xxxx */ | |
180 | /* SUB 1111 0x01 101x xxxx 0xxx xxxx xxxx xxxx */ | |
181 | /* RSB 1111 0x01 110x xxxx 0xxx xxxx xxxx xxxx */ | |
3e6cd394 | 182 | DECODE_EMULATEX (0xfa008000, 0xf0000000, PROBES_T32_LOGICAL, |
87abef63 DL |
183 | REGS(NOSPPC, 0, NOSPPC, 0, 0)), |
184 | ||
185 | DECODE_END | |
186 | }; | |
187 | ||
188 | static const union decode_item t32_table_1111_0x1x___0[] = { | |
189 | /* Data-processing (plain binary immediate) */ | |
190 | ||
191 | /* ADDW Rd, PC, #imm 1111 0x10 0000 1111 0xxx xxxx xxxx xxxx */ | |
192 | DECODE_OR (0xfbff8000, 0xf20f0000), | |
193 | /* SUBW Rd, PC, #imm 1111 0x10 1010 1111 0xxx xxxx xxxx xxxx */ | |
3e6cd394 | 194 | DECODE_EMULATEX (0xfbff8000, 0xf2af0000, PROBES_T32_ADDWSUBW_PC, |
87abef63 DL |
195 | REGS(PC, 0, NOSPPC, 0, 0)), |
196 | ||
197 | /* ADDW SP, SP, #imm 1111 0x10 0000 1101 0xxx 1101 xxxx xxxx */ | |
198 | DECODE_OR (0xfbff8f00, 0xf20d0d00), | |
199 | /* SUBW SP, SP, #imm 1111 0x10 1010 1101 0xxx 1101 xxxx xxxx */ | |
3e6cd394 | 200 | DECODE_EMULATEX (0xfbff8f00, 0xf2ad0d00, PROBES_T32_ADDWSUBW, |
87abef63 DL |
201 | REGS(SP, 0, SP, 0, 0)), |
202 | ||
203 | /* ADDW 1111 0x10 0000 xxxx 0xxx xxxx xxxx xxxx */ | |
204 | DECODE_OR (0xfbf08000, 0xf2000000), | |
205 | /* SUBW 1111 0x10 1010 xxxx 0xxx xxxx xxxx xxxx */ | |
3e6cd394 | 206 | DECODE_EMULATEX (0xfbf08000, 0xf2a00000, PROBES_T32_ADDWSUBW, |
87abef63 DL |
207 | REGS(NOPCX, 0, NOSPPC, 0, 0)), |
208 | ||
209 | /* MOVW 1111 0x10 0100 xxxx 0xxx xxxx xxxx xxxx */ | |
210 | /* MOVT 1111 0x10 1100 xxxx 0xxx xxxx xxxx xxxx */ | |
3e6cd394 | 211 | DECODE_EMULATEX (0xfb708000, 0xf2400000, PROBES_T32_MOVW, |
87abef63 DL |
212 | REGS(0, 0, NOSPPC, 0, 0)), |
213 | ||
214 | /* SSAT16 1111 0x11 0010 xxxx 0000 xxxx 00xx xxxx */ | |
215 | /* SSAT 1111 0x11 00x0 xxxx 0xxx xxxx xxxx xxxx */ | |
216 | /* USAT16 1111 0x11 1010 xxxx 0000 xxxx 00xx xxxx */ | |
217 | /* USAT 1111 0x11 10x0 xxxx 0xxx xxxx xxxx xxxx */ | |
3e6cd394 | 218 | DECODE_EMULATEX (0xfb508000, 0xf3000000, PROBES_T32_SAT, |
87abef63 DL |
219 | REGS(NOSPPC, 0, NOSPPC, 0, 0)), |
220 | ||
221 | /* SFBX 1111 0x11 0100 xxxx 0xxx xxxx xxxx xxxx */ | |
222 | /* UFBX 1111 0x11 1100 xxxx 0xxx xxxx xxxx xxxx */ | |
3e6cd394 | 223 | DECODE_EMULATEX (0xfb708000, 0xf3400000, PROBES_T32_BITFIELD, |
87abef63 DL |
224 | REGS(NOSPPC, 0, NOSPPC, 0, 0)), |
225 | ||
226 | /* BFC 1111 0x11 0110 1111 0xxx xxxx xxxx xxxx */ | |
3e6cd394 | 227 | DECODE_EMULATEX (0xfbff8000, 0xf36f0000, PROBES_T32_BITFIELD, |
87abef63 DL |
228 | REGS(0, 0, NOSPPC, 0, 0)), |
229 | ||
230 | /* BFI 1111 0x11 0110 xxxx 0xxx xxxx xxxx xxxx */ | |
3e6cd394 | 231 | DECODE_EMULATEX (0xfbf08000, 0xf3600000, PROBES_T32_BITFIELD, |
87abef63 DL |
232 | REGS(NOSPPCX, 0, NOSPPC, 0, 0)), |
233 | ||
234 | DECODE_END | |
235 | }; | |
236 | ||
237 | static const union decode_item t32_table_1111_0xxx___1[] = { | |
238 | /* Branches and miscellaneous control */ | |
239 | ||
240 | /* YIELD 1111 0011 1010 xxxx 10x0 x000 0000 0001 */ | |
241 | DECODE_OR (0xfff0d7ff, 0xf3a08001), | |
242 | /* SEV 1111 0011 1010 xxxx 10x0 x000 0000 0100 */ | |
3e6cd394 | 243 | DECODE_EMULATE (0xfff0d7ff, 0xf3a08004, PROBES_T32_SEV), |
87abef63 DL |
244 | /* NOP 1111 0011 1010 xxxx 10x0 x000 0000 0000 */ |
245 | /* WFE 1111 0011 1010 xxxx 10x0 x000 0000 0010 */ | |
246 | /* WFI 1111 0011 1010 xxxx 10x0 x000 0000 0011 */ | |
3e6cd394 | 247 | DECODE_SIMULATE (0xfff0d7fc, 0xf3a08000, PROBES_T32_WFE), |
87abef63 DL |
248 | |
249 | /* MRS Rd, CPSR 1111 0011 1110 xxxx 10x0 xxxx xxxx xxxx */ | |
3e6cd394 | 250 | DECODE_SIMULATEX(0xfff0d000, 0xf3e08000, PROBES_T32_MRS, |
87abef63 DL |
251 | REGS(0, 0, NOSPPC, 0, 0)), |
252 | ||
253 | /* | |
254 | * Unsupported instructions | |
255 | * 1111 0x11 1xxx xxxx 10x0 xxxx xxxx xxxx | |
256 | * | |
257 | * MSR 1111 0011 100x xxxx 10x0 xxxx xxxx xxxx | |
258 | * DBG hint 1111 0011 1010 xxxx 10x0 x000 1111 xxxx | |
259 | * Unallocated hints 1111 0011 1010 xxxx 10x0 x000 xxxx xxxx | |
260 | * CPS 1111 0011 1010 xxxx 10x0 xxxx xxxx xxxx | |
261 | * CLREX/DSB/DMB/ISB 1111 0011 1011 xxxx 10x0 xxxx xxxx xxxx | |
262 | * BXJ 1111 0011 1100 xxxx 10x0 xxxx xxxx xxxx | |
263 | * SUBS PC,LR,#<imm8> 1111 0011 1101 xxxx 10x0 xxxx xxxx xxxx | |
264 | * MRS Rd, SPSR 1111 0011 1111 xxxx 10x0 xxxx xxxx xxxx | |
265 | * SMC 1111 0111 1111 xxxx 1000 xxxx xxxx xxxx | |
266 | * UNDEFINED 1111 0111 1111 xxxx 1010 xxxx xxxx xxxx | |
267 | * ??? 1111 0111 1xxx xxxx 1010 xxxx xxxx xxxx | |
268 | */ | |
269 | DECODE_REJECT (0xfb80d000, 0xf3808000), | |
270 | ||
271 | /* Bcc 1111 0xxx xxxx xxxx 10x0 xxxx xxxx xxxx */ | |
3e6cd394 | 272 | DECODE_CUSTOM (0xf800d000, 0xf0008000, PROBES_T32_BRANCH_COND), |
87abef63 DL |
273 | |
274 | /* BLX 1111 0xxx xxxx xxxx 11x0 xxxx xxxx xxx0 */ | |
275 | DECODE_OR (0xf800d001, 0xf000c000), | |
276 | /* B 1111 0xxx xxxx xxxx 10x1 xxxx xxxx xxxx */ | |
277 | /* BL 1111 0xxx xxxx xxxx 11x1 xxxx xxxx xxxx */ | |
3e6cd394 | 278 | DECODE_SIMULATE (0xf8009000, 0xf0009000, PROBES_T32_BRANCH), |
87abef63 DL |
279 | |
280 | DECODE_END | |
281 | }; | |
282 | ||
283 | static const union decode_item t32_table_1111_100x_x0x1__1111[] = { | |
284 | /* Memory hints */ | |
285 | ||
286 | /* PLD (literal) 1111 1000 x001 1111 1111 xxxx xxxx xxxx */ | |
287 | /* PLI (literal) 1111 1001 x001 1111 1111 xxxx xxxx xxxx */ | |
3e6cd394 | 288 | DECODE_SIMULATE (0xfe7ff000, 0xf81ff000, PROBES_T32_PLDI), |
87abef63 DL |
289 | |
290 | /* PLD{W} (immediate) 1111 1000 10x1 xxxx 1111 xxxx xxxx xxxx */ | |
291 | DECODE_OR (0xffd0f000, 0xf890f000), | |
292 | /* PLD{W} (immediate) 1111 1000 00x1 xxxx 1111 1100 xxxx xxxx */ | |
293 | DECODE_OR (0xffd0ff00, 0xf810fc00), | |
294 | /* PLI (immediate) 1111 1001 1001 xxxx 1111 xxxx xxxx xxxx */ | |
295 | DECODE_OR (0xfff0f000, 0xf990f000), | |
296 | /* PLI (immediate) 1111 1001 0001 xxxx 1111 1100 xxxx xxxx */ | |
3e6cd394 | 297 | DECODE_SIMULATEX(0xfff0ff00, 0xf910fc00, PROBES_T32_PLDI, |
87abef63 DL |
298 | REGS(NOPCX, 0, 0, 0, 0)), |
299 | ||
300 | /* PLD{W} (register) 1111 1000 00x1 xxxx 1111 0000 00xx xxxx */ | |
301 | DECODE_OR (0xffd0ffc0, 0xf810f000), | |
302 | /* PLI (register) 1111 1001 0001 xxxx 1111 0000 00xx xxxx */ | |
3e6cd394 | 303 | DECODE_SIMULATEX(0xfff0ffc0, 0xf910f000, PROBES_T32_PLDI, |
87abef63 DL |
304 | REGS(NOPCX, 0, 0, 0, NOSPPC)), |
305 | ||
306 | /* Other unallocated instructions... */ | |
307 | DECODE_END | |
308 | }; | |
309 | ||
310 | static const union decode_item t32_table_1111_100x[] = { | |
311 | /* Store/Load single data item */ | |
312 | ||
313 | /* ??? 1111 100x x11x xxxx xxxx xxxx xxxx xxxx */ | |
314 | DECODE_REJECT (0xfe600000, 0xf8600000), | |
315 | ||
316 | /* ??? 1111 1001 0101 xxxx xxxx xxxx xxxx xxxx */ | |
317 | DECODE_REJECT (0xfff00000, 0xf9500000), | |
318 | ||
319 | /* ??? 1111 100x 0xxx xxxx xxxx 10x0 xxxx xxxx */ | |
320 | DECODE_REJECT (0xfe800d00, 0xf8000800), | |
321 | ||
322 | /* STRBT 1111 1000 0000 xxxx xxxx 1110 xxxx xxxx */ | |
323 | /* STRHT 1111 1000 0010 xxxx xxxx 1110 xxxx xxxx */ | |
324 | /* STRT 1111 1000 0100 xxxx xxxx 1110 xxxx xxxx */ | |
325 | /* LDRBT 1111 1000 0001 xxxx xxxx 1110 xxxx xxxx */ | |
326 | /* LDRSBT 1111 1001 0001 xxxx xxxx 1110 xxxx xxxx */ | |
327 | /* LDRHT 1111 1000 0011 xxxx xxxx 1110 xxxx xxxx */ | |
328 | /* LDRSHT 1111 1001 0011 xxxx xxxx 1110 xxxx xxxx */ | |
329 | /* LDRT 1111 1000 0101 xxxx xxxx 1110 xxxx xxxx */ | |
330 | DECODE_REJECT (0xfe800f00, 0xf8000e00), | |
331 | ||
332 | /* STR{,B,H} Rn,[PC...] 1111 1000 xxx0 1111 xxxx xxxx xxxx xxxx */ | |
333 | DECODE_REJECT (0xff1f0000, 0xf80f0000), | |
334 | ||
335 | /* STR{,B,H} PC,[Rn...] 1111 1000 xxx0 xxxx 1111 xxxx xxxx xxxx */ | |
336 | DECODE_REJECT (0xff10f000, 0xf800f000), | |
337 | ||
338 | /* LDR (literal) 1111 1000 x101 1111 xxxx xxxx xxxx xxxx */ | |
3e6cd394 | 339 | DECODE_SIMULATEX(0xff7f0000, 0xf85f0000, PROBES_T32_LDR_LIT, |
87abef63 DL |
340 | REGS(PC, ANY, 0, 0, 0)), |
341 | ||
342 | /* STR (immediate) 1111 1000 0100 xxxx xxxx 1xxx xxxx xxxx */ | |
343 | /* LDR (immediate) 1111 1000 0101 xxxx xxxx 1xxx xxxx xxxx */ | |
344 | DECODE_OR (0xffe00800, 0xf8400800), | |
345 | /* STR (immediate) 1111 1000 1100 xxxx xxxx xxxx xxxx xxxx */ | |
346 | /* LDR (immediate) 1111 1000 1101 xxxx xxxx xxxx xxxx xxxx */ | |
3e6cd394 | 347 | DECODE_EMULATEX (0xffe00000, 0xf8c00000, PROBES_T32_LDRSTR, |
87abef63 DL |
348 | REGS(NOPCX, ANY, 0, 0, 0)), |
349 | ||
350 | /* STR (register) 1111 1000 0100 xxxx xxxx 0000 00xx xxxx */ | |
351 | /* LDR (register) 1111 1000 0101 xxxx xxxx 0000 00xx xxxx */ | |
3e6cd394 | 352 | DECODE_EMULATEX (0xffe00fc0, 0xf8400000, PROBES_T32_LDRSTR, |
87abef63 DL |
353 | REGS(NOPCX, ANY, 0, 0, NOSPPC)), |
354 | ||
355 | /* LDRB (literal) 1111 1000 x001 1111 xxxx xxxx xxxx xxxx */ | |
356 | /* LDRSB (literal) 1111 1001 x001 1111 xxxx xxxx xxxx xxxx */ | |
357 | /* LDRH (literal) 1111 1000 x011 1111 xxxx xxxx xxxx xxxx */ | |
358 | /* LDRSH (literal) 1111 1001 x011 1111 xxxx xxxx xxxx xxxx */ | |
3e6cd394 | 359 | DECODE_SIMULATEX(0xfe5f0000, 0xf81f0000, PROBES_T32_LDR_LIT, |
87abef63 DL |
360 | REGS(PC, NOSPPCX, 0, 0, 0)), |
361 | ||
362 | /* STRB (immediate) 1111 1000 0000 xxxx xxxx 1xxx xxxx xxxx */ | |
363 | /* STRH (immediate) 1111 1000 0010 xxxx xxxx 1xxx xxxx xxxx */ | |
364 | /* LDRB (immediate) 1111 1000 0001 xxxx xxxx 1xxx xxxx xxxx */ | |
365 | /* LDRSB (immediate) 1111 1001 0001 xxxx xxxx 1xxx xxxx xxxx */ | |
366 | /* LDRH (immediate) 1111 1000 0011 xxxx xxxx 1xxx xxxx xxxx */ | |
367 | /* LDRSH (immediate) 1111 1001 0011 xxxx xxxx 1xxx xxxx xxxx */ | |
368 | DECODE_OR (0xfec00800, 0xf8000800), | |
369 | /* STRB (immediate) 1111 1000 1000 xxxx xxxx xxxx xxxx xxxx */ | |
370 | /* STRH (immediate) 1111 1000 1010 xxxx xxxx xxxx xxxx xxxx */ | |
371 | /* LDRB (immediate) 1111 1000 1001 xxxx xxxx xxxx xxxx xxxx */ | |
372 | /* LDRSB (immediate) 1111 1001 1001 xxxx xxxx xxxx xxxx xxxx */ | |
373 | /* LDRH (immediate) 1111 1000 1011 xxxx xxxx xxxx xxxx xxxx */ | |
374 | /* LDRSH (immediate) 1111 1001 1011 xxxx xxxx xxxx xxxx xxxx */ | |
3e6cd394 | 375 | DECODE_EMULATEX (0xfec00000, 0xf8800000, PROBES_T32_LDRSTR, |
87abef63 DL |
376 | REGS(NOPCX, NOSPPCX, 0, 0, 0)), |
377 | ||
378 | /* STRB (register) 1111 1000 0000 xxxx xxxx 0000 00xx xxxx */ | |
379 | /* STRH (register) 1111 1000 0010 xxxx xxxx 0000 00xx xxxx */ | |
380 | /* LDRB (register) 1111 1000 0001 xxxx xxxx 0000 00xx xxxx */ | |
381 | /* LDRSB (register) 1111 1001 0001 xxxx xxxx 0000 00xx xxxx */ | |
382 | /* LDRH (register) 1111 1000 0011 xxxx xxxx 0000 00xx xxxx */ | |
383 | /* LDRSH (register) 1111 1001 0011 xxxx xxxx 0000 00xx xxxx */ | |
3e6cd394 | 384 | DECODE_EMULATEX (0xfe800fc0, 0xf8000000, PROBES_T32_LDRSTR, |
87abef63 DL |
385 | REGS(NOPCX, NOSPPCX, 0, 0, NOSPPC)), |
386 | ||
387 | /* Other unallocated instructions... */ | |
388 | DECODE_END | |
389 | }; | |
390 | ||
391 | static const union decode_item t32_table_1111_1010___1111[] = { | |
392 | /* Data-processing (register) */ | |
393 | ||
394 | /* ??? 1111 1010 011x xxxx 1111 xxxx 1xxx xxxx */ | |
395 | DECODE_REJECT (0xffe0f080, 0xfa60f080), | |
396 | ||
397 | /* SXTH 1111 1010 0000 1111 1111 xxxx 1xxx xxxx */ | |
398 | /* UXTH 1111 1010 0001 1111 1111 xxxx 1xxx xxxx */ | |
399 | /* SXTB16 1111 1010 0010 1111 1111 xxxx 1xxx xxxx */ | |
400 | /* UXTB16 1111 1010 0011 1111 1111 xxxx 1xxx xxxx */ | |
401 | /* SXTB 1111 1010 0100 1111 1111 xxxx 1xxx xxxx */ | |
402 | /* UXTB 1111 1010 0101 1111 1111 xxxx 1xxx xxxx */ | |
3e6cd394 | 403 | DECODE_EMULATEX (0xff8ff080, 0xfa0ff080, PROBES_T32_SIGN_EXTEND, |
87abef63 DL |
404 | REGS(0, 0, NOSPPC, 0, NOSPPC)), |
405 | ||
406 | ||
407 | /* ??? 1111 1010 1xxx xxxx 1111 xxxx 0x11 xxxx */ | |
408 | DECODE_REJECT (0xff80f0b0, 0xfa80f030), | |
409 | /* ??? 1111 1010 1x11 xxxx 1111 xxxx 0xxx xxxx */ | |
410 | DECODE_REJECT (0xffb0f080, 0xfab0f000), | |
411 | ||
412 | /* SADD16 1111 1010 1001 xxxx 1111 xxxx 0000 xxxx */ | |
413 | /* SASX 1111 1010 1010 xxxx 1111 xxxx 0000 xxxx */ | |
414 | /* SSAX 1111 1010 1110 xxxx 1111 xxxx 0000 xxxx */ | |
415 | /* SSUB16 1111 1010 1101 xxxx 1111 xxxx 0000 xxxx */ | |
416 | /* SADD8 1111 1010 1000 xxxx 1111 xxxx 0000 xxxx */ | |
417 | /* SSUB8 1111 1010 1100 xxxx 1111 xxxx 0000 xxxx */ | |
418 | ||
419 | /* QADD16 1111 1010 1001 xxxx 1111 xxxx 0001 xxxx */ | |
420 | /* QASX 1111 1010 1010 xxxx 1111 xxxx 0001 xxxx */ | |
421 | /* QSAX 1111 1010 1110 xxxx 1111 xxxx 0001 xxxx */ | |
422 | /* QSUB16 1111 1010 1101 xxxx 1111 xxxx 0001 xxxx */ | |
423 | /* QADD8 1111 1010 1000 xxxx 1111 xxxx 0001 xxxx */ | |
424 | /* QSUB8 1111 1010 1100 xxxx 1111 xxxx 0001 xxxx */ | |
425 | ||
426 | /* SHADD16 1111 1010 1001 xxxx 1111 xxxx 0010 xxxx */ | |
427 | /* SHASX 1111 1010 1010 xxxx 1111 xxxx 0010 xxxx */ | |
428 | /* SHSAX 1111 1010 1110 xxxx 1111 xxxx 0010 xxxx */ | |
429 | /* SHSUB16 1111 1010 1101 xxxx 1111 xxxx 0010 xxxx */ | |
430 | /* SHADD8 1111 1010 1000 xxxx 1111 xxxx 0010 xxxx */ | |
431 | /* SHSUB8 1111 1010 1100 xxxx 1111 xxxx 0010 xxxx */ | |
432 | ||
433 | /* UADD16 1111 1010 1001 xxxx 1111 xxxx 0100 xxxx */ | |
434 | /* UASX 1111 1010 1010 xxxx 1111 xxxx 0100 xxxx */ | |
435 | /* USAX 1111 1010 1110 xxxx 1111 xxxx 0100 xxxx */ | |
436 | /* USUB16 1111 1010 1101 xxxx 1111 xxxx 0100 xxxx */ | |
437 | /* UADD8 1111 1010 1000 xxxx 1111 xxxx 0100 xxxx */ | |
438 | /* USUB8 1111 1010 1100 xxxx 1111 xxxx 0100 xxxx */ | |
439 | ||
440 | /* UQADD16 1111 1010 1001 xxxx 1111 xxxx 0101 xxxx */ | |
441 | /* UQASX 1111 1010 1010 xxxx 1111 xxxx 0101 xxxx */ | |
442 | /* UQSAX 1111 1010 1110 xxxx 1111 xxxx 0101 xxxx */ | |
443 | /* UQSUB16 1111 1010 1101 xxxx 1111 xxxx 0101 xxxx */ | |
444 | /* UQADD8 1111 1010 1000 xxxx 1111 xxxx 0101 xxxx */ | |
445 | /* UQSUB8 1111 1010 1100 xxxx 1111 xxxx 0101 xxxx */ | |
446 | ||
447 | /* UHADD16 1111 1010 1001 xxxx 1111 xxxx 0110 xxxx */ | |
448 | /* UHASX 1111 1010 1010 xxxx 1111 xxxx 0110 xxxx */ | |
449 | /* UHSAX 1111 1010 1110 xxxx 1111 xxxx 0110 xxxx */ | |
450 | /* UHSUB16 1111 1010 1101 xxxx 1111 xxxx 0110 xxxx */ | |
451 | /* UHADD8 1111 1010 1000 xxxx 1111 xxxx 0110 xxxx */ | |
452 | /* UHSUB8 1111 1010 1100 xxxx 1111 xxxx 0110 xxxx */ | |
453 | DECODE_OR (0xff80f080, 0xfa80f000), | |
454 | ||
455 | /* SXTAH 1111 1010 0000 xxxx 1111 xxxx 1xxx xxxx */ | |
456 | /* UXTAH 1111 1010 0001 xxxx 1111 xxxx 1xxx xxxx */ | |
457 | /* SXTAB16 1111 1010 0010 xxxx 1111 xxxx 1xxx xxxx */ | |
458 | /* UXTAB16 1111 1010 0011 xxxx 1111 xxxx 1xxx xxxx */ | |
459 | /* SXTAB 1111 1010 0100 xxxx 1111 xxxx 1xxx xxxx */ | |
460 | /* UXTAB 1111 1010 0101 xxxx 1111 xxxx 1xxx xxxx */ | |
461 | DECODE_OR (0xff80f080, 0xfa00f080), | |
462 | ||
463 | /* QADD 1111 1010 1000 xxxx 1111 xxxx 1000 xxxx */ | |
464 | /* QDADD 1111 1010 1000 xxxx 1111 xxxx 1001 xxxx */ | |
465 | /* QSUB 1111 1010 1000 xxxx 1111 xxxx 1010 xxxx */ | |
466 | /* QDSUB 1111 1010 1000 xxxx 1111 xxxx 1011 xxxx */ | |
467 | DECODE_OR (0xfff0f0c0, 0xfa80f080), | |
468 | ||
469 | /* SEL 1111 1010 1010 xxxx 1111 xxxx 1000 xxxx */ | |
470 | DECODE_OR (0xfff0f0f0, 0xfaa0f080), | |
471 | ||
472 | /* LSL 1111 1010 000x xxxx 1111 xxxx 0000 xxxx */ | |
473 | /* LSR 1111 1010 001x xxxx 1111 xxxx 0000 xxxx */ | |
474 | /* ASR 1111 1010 010x xxxx 1111 xxxx 0000 xxxx */ | |
475 | /* ROR 1111 1010 011x xxxx 1111 xxxx 0000 xxxx */ | |
3e6cd394 | 476 | DECODE_EMULATEX (0xff80f0f0, 0xfa00f000, PROBES_T32_MEDIA, |
87abef63 DL |
477 | REGS(NOSPPC, 0, NOSPPC, 0, NOSPPC)), |
478 | ||
479 | /* CLZ 1111 1010 1010 xxxx 1111 xxxx 1000 xxxx */ | |
480 | DECODE_OR (0xfff0f0f0, 0xfab0f080), | |
481 | ||
482 | /* REV 1111 1010 1001 xxxx 1111 xxxx 1000 xxxx */ | |
483 | /* REV16 1111 1010 1001 xxxx 1111 xxxx 1001 xxxx */ | |
484 | /* RBIT 1111 1010 1001 xxxx 1111 xxxx 1010 xxxx */ | |
485 | /* REVSH 1111 1010 1001 xxxx 1111 xxxx 1011 xxxx */ | |
3e6cd394 | 486 | DECODE_EMULATEX (0xfff0f0c0, 0xfa90f080, PROBES_T32_REVERSE, |
87abef63 DL |
487 | REGS(NOSPPC, 0, NOSPPC, 0, SAMEAS16)), |
488 | ||
489 | /* Other unallocated instructions... */ | |
490 | DECODE_END | |
491 | }; | |
492 | ||
493 | static const union decode_item t32_table_1111_1011_0[] = { | |
494 | /* Multiply, multiply accumulate, and absolute difference */ | |
495 | ||
496 | /* ??? 1111 1011 0000 xxxx 1111 xxxx 0001 xxxx */ | |
497 | DECODE_REJECT (0xfff0f0f0, 0xfb00f010), | |
498 | /* ??? 1111 1011 0111 xxxx 1111 xxxx 0001 xxxx */ | |
499 | DECODE_REJECT (0xfff0f0f0, 0xfb70f010), | |
500 | ||
501 | /* SMULxy 1111 1011 0001 xxxx 1111 xxxx 00xx xxxx */ | |
502 | DECODE_OR (0xfff0f0c0, 0xfb10f000), | |
503 | /* MUL 1111 1011 0000 xxxx 1111 xxxx 0000 xxxx */ | |
504 | /* SMUAD{X} 1111 1011 0010 xxxx 1111 xxxx 000x xxxx */ | |
505 | /* SMULWy 1111 1011 0011 xxxx 1111 xxxx 000x xxxx */ | |
506 | /* SMUSD{X} 1111 1011 0100 xxxx 1111 xxxx 000x xxxx */ | |
507 | /* SMMUL{R} 1111 1011 0101 xxxx 1111 xxxx 000x xxxx */ | |
508 | /* USAD8 1111 1011 0111 xxxx 1111 xxxx 0000 xxxx */ | |
3e6cd394 | 509 | DECODE_EMULATEX (0xff80f0e0, 0xfb00f000, PROBES_T32_MUL_ADD, |
87abef63 DL |
510 | REGS(NOSPPC, 0, NOSPPC, 0, NOSPPC)), |
511 | ||
512 | /* ??? 1111 1011 0111 xxxx xxxx xxxx 0001 xxxx */ | |
513 | DECODE_REJECT (0xfff000f0, 0xfb700010), | |
514 | ||
515 | /* SMLAxy 1111 1011 0001 xxxx xxxx xxxx 00xx xxxx */ | |
516 | DECODE_OR (0xfff000c0, 0xfb100000), | |
517 | /* MLA 1111 1011 0000 xxxx xxxx xxxx 0000 xxxx */ | |
518 | /* MLS 1111 1011 0000 xxxx xxxx xxxx 0001 xxxx */ | |
519 | /* SMLAD{X} 1111 1011 0010 xxxx xxxx xxxx 000x xxxx */ | |
520 | /* SMLAWy 1111 1011 0011 xxxx xxxx xxxx 000x xxxx */ | |
521 | /* SMLSD{X} 1111 1011 0100 xxxx xxxx xxxx 000x xxxx */ | |
522 | /* SMMLA{R} 1111 1011 0101 xxxx xxxx xxxx 000x xxxx */ | |
523 | /* SMMLS{R} 1111 1011 0110 xxxx xxxx xxxx 000x xxxx */ | |
524 | /* USADA8 1111 1011 0111 xxxx xxxx xxxx 0000 xxxx */ | |
3e6cd394 | 525 | DECODE_EMULATEX (0xff8000c0, 0xfb000000, PROBES_T32_MUL_ADD2, |
87abef63 DL |
526 | REGS(NOSPPC, NOSPPCX, NOSPPC, 0, NOSPPC)), |
527 | ||
528 | /* Other unallocated instructions... */ | |
529 | DECODE_END | |
530 | }; | |
531 | ||
532 | static const union decode_item t32_table_1111_1011_1[] = { | |
533 | /* Long multiply, long multiply accumulate, and divide */ | |
534 | ||
535 | /* UMAAL 1111 1011 1110 xxxx xxxx xxxx 0110 xxxx */ | |
536 | DECODE_OR (0xfff000f0, 0xfbe00060), | |
537 | /* SMLALxy 1111 1011 1100 xxxx xxxx xxxx 10xx xxxx */ | |
538 | DECODE_OR (0xfff000c0, 0xfbc00080), | |
539 | /* SMLALD{X} 1111 1011 1100 xxxx xxxx xxxx 110x xxxx */ | |
540 | /* SMLSLD{X} 1111 1011 1101 xxxx xxxx xxxx 110x xxxx */ | |
541 | DECODE_OR (0xffe000e0, 0xfbc000c0), | |
542 | /* SMULL 1111 1011 1000 xxxx xxxx xxxx 0000 xxxx */ | |
543 | /* UMULL 1111 1011 1010 xxxx xxxx xxxx 0000 xxxx */ | |
544 | /* SMLAL 1111 1011 1100 xxxx xxxx xxxx 0000 xxxx */ | |
545 | /* UMLAL 1111 1011 1110 xxxx xxxx xxxx 0000 xxxx */ | |
3e6cd394 | 546 | DECODE_EMULATEX (0xff9000f0, 0xfb800000, PROBES_T32_MUL_ADD_LONG, |
87abef63 DL |
547 | REGS(NOSPPC, NOSPPC, NOSPPC, 0, NOSPPC)), |
548 | ||
549 | /* SDIV 1111 1011 1001 xxxx xxxx xxxx 1111 xxxx */ | |
550 | /* UDIV 1111 1011 1011 xxxx xxxx xxxx 1111 xxxx */ | |
551 | /* Other unallocated instructions... */ | |
552 | DECODE_END | |
553 | }; | |
554 | ||
47e190fa | 555 | const union decode_item probes_decode_thumb32_table[] = { |
87abef63 DL |
556 | |
557 | /* | |
558 | * Load/store multiple instructions | |
559 | * 1110 100x x0xx xxxx xxxx xxxx xxxx xxxx | |
560 | */ | |
561 | DECODE_TABLE (0xfe400000, 0xe8000000, t32_table_1110_100x_x0xx), | |
562 | ||
563 | /* | |
564 | * Load/store dual, load/store exclusive, table branch | |
565 | * 1110 100x x1xx xxxx xxxx xxxx xxxx xxxx | |
566 | */ | |
567 | DECODE_TABLE (0xfe400000, 0xe8400000, t32_table_1110_100x_x1xx), | |
568 | ||
569 | /* | |
570 | * Data-processing (shifted register) | |
571 | * 1110 101x xxxx xxxx xxxx xxxx xxxx xxxx | |
572 | */ | |
573 | DECODE_TABLE (0xfe000000, 0xea000000, t32_table_1110_101x), | |
574 | ||
575 | /* | |
576 | * Coprocessor instructions | |
577 | * 1110 11xx xxxx xxxx xxxx xxxx xxxx xxxx | |
578 | */ | |
579 | DECODE_REJECT (0xfc000000, 0xec000000), | |
580 | ||
581 | /* | |
582 | * Data-processing (modified immediate) | |
583 | * 1111 0x0x xxxx xxxx 0xxx xxxx xxxx xxxx | |
584 | */ | |
585 | DECODE_TABLE (0xfa008000, 0xf0000000, t32_table_1111_0x0x___0), | |
586 | ||
587 | /* | |
588 | * Data-processing (plain binary immediate) | |
589 | * 1111 0x1x xxxx xxxx 0xxx xxxx xxxx xxxx | |
590 | */ | |
591 | DECODE_TABLE (0xfa008000, 0xf2000000, t32_table_1111_0x1x___0), | |
592 | ||
593 | /* | |
594 | * Branches and miscellaneous control | |
595 | * 1111 0xxx xxxx xxxx 1xxx xxxx xxxx xxxx | |
596 | */ | |
597 | DECODE_TABLE (0xf8008000, 0xf0008000, t32_table_1111_0xxx___1), | |
598 | ||
599 | /* | |
600 | * Advanced SIMD element or structure load/store instructions | |
601 | * 1111 1001 xxx0 xxxx xxxx xxxx xxxx xxxx | |
602 | */ | |
603 | DECODE_REJECT (0xff100000, 0xf9000000), | |
604 | ||
605 | /* | |
606 | * Memory hints | |
607 | * 1111 100x x0x1 xxxx 1111 xxxx xxxx xxxx | |
608 | */ | |
609 | DECODE_TABLE (0xfe50f000, 0xf810f000, t32_table_1111_100x_x0x1__1111), | |
610 | ||
611 | /* | |
612 | * Store single data item | |
613 | * 1111 1000 xxx0 xxxx xxxx xxxx xxxx xxxx | |
614 | * Load single data items | |
615 | * 1111 100x xxx1 xxxx xxxx xxxx xxxx xxxx | |
616 | */ | |
617 | DECODE_TABLE (0xfe000000, 0xf8000000, t32_table_1111_100x), | |
618 | ||
619 | /* | |
620 | * Data-processing (register) | |
621 | * 1111 1010 xxxx xxxx 1111 xxxx xxxx xxxx | |
622 | */ | |
623 | DECODE_TABLE (0xff00f000, 0xfa00f000, t32_table_1111_1010___1111), | |
624 | ||
625 | /* | |
626 | * Multiply, multiply accumulate, and absolute difference | |
627 | * 1111 1011 0xxx xxxx xxxx xxxx xxxx xxxx | |
628 | */ | |
629 | DECODE_TABLE (0xff800000, 0xfb000000, t32_table_1111_1011_0), | |
630 | ||
631 | /* | |
632 | * Long multiply, long multiply accumulate, and divide | |
633 | * 1111 1011 1xxx xxxx xxxx xxxx xxxx xxxx | |
634 | */ | |
635 | DECODE_TABLE (0xff800000, 0xfb800000, t32_table_1111_1011_1), | |
636 | ||
637 | /* | |
638 | * Coprocessor instructions | |
639 | * 1111 11xx xxxx xxxx xxxx xxxx xxxx xxxx | |
640 | */ | |
641 | DECODE_END | |
642 | }; | |
643 | #ifdef CONFIG_ARM_KPROBES_TEST_MODULE | |
47e190fa | 644 | EXPORT_SYMBOL_GPL(probes_decode_thumb32_table); |
87abef63 DL |
645 | #endif |
646 | ||
647 | static const union decode_item t16_table_1011[] = { | |
648 | /* Miscellaneous 16-bit instructions */ | |
649 | ||
650 | /* ADD (SP plus immediate) 1011 0000 0xxx xxxx */ | |
651 | /* SUB (SP minus immediate) 1011 0000 1xxx xxxx */ | |
3e6cd394 | 652 | DECODE_SIMULATE (0xff00, 0xb000, PROBES_T16_ADD_SP), |
87abef63 DL |
653 | |
654 | /* CBZ 1011 00x1 xxxx xxxx */ | |
655 | /* CBNZ 1011 10x1 xxxx xxxx */ | |
3e6cd394 | 656 | DECODE_SIMULATE (0xf500, 0xb100, PROBES_T16_CBZ), |
87abef63 DL |
657 | |
658 | /* SXTH 1011 0010 00xx xxxx */ | |
659 | /* SXTB 1011 0010 01xx xxxx */ | |
660 | /* UXTH 1011 0010 10xx xxxx */ | |
661 | /* UXTB 1011 0010 11xx xxxx */ | |
662 | /* REV 1011 1010 00xx xxxx */ | |
663 | /* REV16 1011 1010 01xx xxxx */ | |
664 | /* ??? 1011 1010 10xx xxxx */ | |
665 | /* REVSH 1011 1010 11xx xxxx */ | |
666 | DECODE_REJECT (0xffc0, 0xba80), | |
3e6cd394 | 667 | DECODE_EMULATE (0xf500, 0xb000, PROBES_T16_SIGN_EXTEND), |
87abef63 DL |
668 | |
669 | /* PUSH 1011 010x xxxx xxxx */ | |
3e6cd394 | 670 | DECODE_CUSTOM (0xfe00, 0xb400, PROBES_T16_PUSH), |
87abef63 | 671 | /* POP 1011 110x xxxx xxxx */ |
3e6cd394 | 672 | DECODE_CUSTOM (0xfe00, 0xbc00, PROBES_T16_POP), |
87abef63 DL |
673 | |
674 | /* | |
675 | * If-Then, and hints | |
676 | * 1011 1111 xxxx xxxx | |
677 | */ | |
678 | ||
679 | /* YIELD 1011 1111 0001 0000 */ | |
680 | DECODE_OR (0xffff, 0xbf10), | |
681 | /* SEV 1011 1111 0100 0000 */ | |
3e6cd394 | 682 | DECODE_EMULATE (0xffff, 0xbf40, PROBES_T16_SEV), |
87abef63 DL |
683 | /* NOP 1011 1111 0000 0000 */ |
684 | /* WFE 1011 1111 0010 0000 */ | |
685 | /* WFI 1011 1111 0011 0000 */ | |
3e6cd394 | 686 | DECODE_SIMULATE (0xffcf, 0xbf00, PROBES_T16_WFE), |
87abef63 DL |
687 | /* Unassigned hints 1011 1111 xxxx 0000 */ |
688 | DECODE_REJECT (0xff0f, 0xbf00), | |
689 | /* IT 1011 1111 xxxx xxxx */ | |
3e6cd394 | 690 | DECODE_CUSTOM (0xff00, 0xbf00, PROBES_T16_IT), |
87abef63 DL |
691 | |
692 | /* SETEND 1011 0110 010x xxxx */ | |
693 | /* CPS 1011 0110 011x xxxx */ | |
694 | /* BKPT 1011 1110 xxxx xxxx */ | |
695 | /* And unallocated instructions... */ | |
696 | DECODE_END | |
697 | }; | |
698 | ||
47e190fa | 699 | const union decode_item probes_decode_thumb16_table[] = { |
87abef63 DL |
700 | |
701 | /* | |
702 | * Shift (immediate), add, subtract, move, and compare | |
703 | * 00xx xxxx xxxx xxxx | |
704 | */ | |
705 | ||
706 | /* CMP (immediate) 0010 1xxx xxxx xxxx */ | |
3e6cd394 | 707 | DECODE_EMULATE (0xf800, 0x2800, PROBES_T16_CMP), |
87abef63 DL |
708 | |
709 | /* ADD (register) 0001 100x xxxx xxxx */ | |
710 | /* SUB (register) 0001 101x xxxx xxxx */ | |
711 | /* LSL (immediate) 0000 0xxx xxxx xxxx */ | |
712 | /* LSR (immediate) 0000 1xxx xxxx xxxx */ | |
713 | /* ASR (immediate) 0001 0xxx xxxx xxxx */ | |
714 | /* ADD (immediate, Thumb) 0001 110x xxxx xxxx */ | |
715 | /* SUB (immediate, Thumb) 0001 111x xxxx xxxx */ | |
716 | /* MOV (immediate) 0010 0xxx xxxx xxxx */ | |
717 | /* ADD (immediate, Thumb) 0011 0xxx xxxx xxxx */ | |
718 | /* SUB (immediate, Thumb) 0011 1xxx xxxx xxxx */ | |
3e6cd394 | 719 | DECODE_EMULATE (0xc000, 0x0000, PROBES_T16_ADDSUB), |
87abef63 DL |
720 | |
721 | /* | |
722 | * 16-bit Thumb data-processing instructions | |
723 | * 0100 00xx xxxx xxxx | |
724 | */ | |
725 | ||
726 | /* TST (register) 0100 0010 00xx xxxx */ | |
3e6cd394 | 727 | DECODE_EMULATE (0xffc0, 0x4200, PROBES_T16_CMP), |
87abef63 DL |
728 | /* CMP (register) 0100 0010 10xx xxxx */ |
729 | /* CMN (register) 0100 0010 11xx xxxx */ | |
3e6cd394 | 730 | DECODE_EMULATE (0xff80, 0x4280, PROBES_T16_CMP), |
87abef63 DL |
731 | /* AND (register) 0100 0000 00xx xxxx */ |
732 | /* EOR (register) 0100 0000 01xx xxxx */ | |
733 | /* LSL (register) 0100 0000 10xx xxxx */ | |
734 | /* LSR (register) 0100 0000 11xx xxxx */ | |
735 | /* ASR (register) 0100 0001 00xx xxxx */ | |
736 | /* ADC (register) 0100 0001 01xx xxxx */ | |
737 | /* SBC (register) 0100 0001 10xx xxxx */ | |
738 | /* ROR (register) 0100 0001 11xx xxxx */ | |
739 | /* RSB (immediate) 0100 0010 01xx xxxx */ | |
740 | /* ORR (register) 0100 0011 00xx xxxx */ | |
741 | /* MUL 0100 0011 00xx xxxx */ | |
742 | /* BIC (register) 0100 0011 10xx xxxx */ | |
743 | /* MVN (register) 0100 0011 10xx xxxx */ | |
3e6cd394 | 744 | DECODE_EMULATE (0xfc00, 0x4000, PROBES_T16_LOGICAL), |
87abef63 DL |
745 | |
746 | /* | |
747 | * Special data instructions and branch and exchange | |
748 | * 0100 01xx xxxx xxxx | |
749 | */ | |
750 | ||
751 | /* BLX pc 0100 0111 1111 1xxx */ | |
752 | DECODE_REJECT (0xfff8, 0x47f8), | |
753 | ||
754 | /* BX (register) 0100 0111 0xxx xxxx */ | |
755 | /* BLX (register) 0100 0111 1xxx xxxx */ | |
3e6cd394 | 756 | DECODE_SIMULATE (0xff00, 0x4700, PROBES_T16_BLX), |
87abef63 DL |
757 | |
758 | /* ADD pc, pc 0100 0100 1111 1111 */ | |
759 | DECODE_REJECT (0xffff, 0x44ff), | |
760 | ||
761 | /* ADD (register) 0100 0100 xxxx xxxx */ | |
762 | /* CMP (register) 0100 0101 xxxx xxxx */ | |
763 | /* MOV (register) 0100 0110 xxxx xxxx */ | |
3e6cd394 | 764 | DECODE_CUSTOM (0xfc00, 0x4400, PROBES_T16_HIREGOPS), |
87abef63 DL |
765 | |
766 | /* | |
767 | * Load from Literal Pool | |
768 | * LDR (literal) 0100 1xxx xxxx xxxx | |
769 | */ | |
3e6cd394 | 770 | DECODE_SIMULATE (0xf800, 0x4800, PROBES_T16_LDR_LIT), |
87abef63 DL |
771 | |
772 | /* | |
773 | * 16-bit Thumb Load/store instructions | |
774 | * 0101 xxxx xxxx xxxx | |
775 | * 011x xxxx xxxx xxxx | |
776 | * 100x xxxx xxxx xxxx | |
777 | */ | |
778 | ||
779 | /* STR (register) 0101 000x xxxx xxxx */ | |
780 | /* STRH (register) 0101 001x xxxx xxxx */ | |
781 | /* STRB (register) 0101 010x xxxx xxxx */ | |
782 | /* LDRSB (register) 0101 011x xxxx xxxx */ | |
783 | /* LDR (register) 0101 100x xxxx xxxx */ | |
784 | /* LDRH (register) 0101 101x xxxx xxxx */ | |
785 | /* LDRB (register) 0101 110x xxxx xxxx */ | |
786 | /* LDRSH (register) 0101 111x xxxx xxxx */ | |
787 | /* STR (immediate, Thumb) 0110 0xxx xxxx xxxx */ | |
788 | /* LDR (immediate, Thumb) 0110 1xxx xxxx xxxx */ | |
789 | /* STRB (immediate, Thumb) 0111 0xxx xxxx xxxx */ | |
790 | /* LDRB (immediate, Thumb) 0111 1xxx xxxx xxxx */ | |
3e6cd394 | 791 | DECODE_EMULATE (0xc000, 0x4000, PROBES_T16_LDRHSTRH), |
87abef63 DL |
792 | /* STRH (immediate, Thumb) 1000 0xxx xxxx xxxx */ |
793 | /* LDRH (immediate, Thumb) 1000 1xxx xxxx xxxx */ | |
3e6cd394 | 794 | DECODE_EMULATE (0xf000, 0x8000, PROBES_T16_LDRHSTRH), |
87abef63 DL |
795 | /* STR (immediate, Thumb) 1001 0xxx xxxx xxxx */ |
796 | /* LDR (immediate, Thumb) 1001 1xxx xxxx xxxx */ | |
3e6cd394 | 797 | DECODE_SIMULATE (0xf000, 0x9000, PROBES_T16_LDRSTR), |
87abef63 DL |
798 | |
799 | /* | |
800 | * Generate PC-/SP-relative address | |
801 | * ADR (literal) 1010 0xxx xxxx xxxx | |
802 | * ADD (SP plus immediate) 1010 1xxx xxxx xxxx | |
803 | */ | |
3e6cd394 | 804 | DECODE_SIMULATE (0xf000, 0xa000, PROBES_T16_ADR), |
87abef63 DL |
805 | |
806 | /* | |
807 | * Miscellaneous 16-bit instructions | |
808 | * 1011 xxxx xxxx xxxx | |
809 | */ | |
810 | DECODE_TABLE (0xf000, 0xb000, t16_table_1011), | |
811 | ||
812 | /* STM 1100 0xxx xxxx xxxx */ | |
813 | /* LDM 1100 1xxx xxxx xxxx */ | |
3e6cd394 | 814 | DECODE_EMULATE (0xf000, 0xc000, PROBES_T16_LDMSTM), |
87abef63 DL |
815 | |
816 | /* | |
817 | * Conditional branch, and Supervisor Call | |
818 | */ | |
819 | ||
820 | /* Permanently UNDEFINED 1101 1110 xxxx xxxx */ | |
821 | /* SVC 1101 1111 xxxx xxxx */ | |
822 | DECODE_REJECT (0xfe00, 0xde00), | |
823 | ||
824 | /* Conditional branch 1101 xxxx xxxx xxxx */ | |
3e6cd394 | 825 | DECODE_CUSTOM (0xf000, 0xd000, PROBES_T16_BRANCH_COND), |
87abef63 DL |
826 | |
827 | /* | |
828 | * Unconditional branch | |
829 | * B 1110 0xxx xxxx xxxx | |
830 | */ | |
3e6cd394 | 831 | DECODE_SIMULATE (0xf800, 0xe000, PROBES_T16_BRANCH), |
87abef63 DL |
832 | |
833 | DECODE_END | |
834 | }; | |
835 | #ifdef CONFIG_ARM_KPROBES_TEST_MODULE | |
47e190fa | 836 | EXPORT_SYMBOL_GPL(probes_decode_thumb16_table); |
87abef63 DL |
837 | #endif |
838 | ||
839 | static unsigned long __kprobes thumb_check_cc(unsigned long cpsr) | |
840 | { | |
841 | if (unlikely(in_it_block(cpsr))) | |
f145d664 | 842 | return probes_condition_checks[current_cond(cpsr)](cpsr); |
87abef63 DL |
843 | return true; |
844 | } | |
845 | ||
f145d664 | 846 | static void __kprobes thumb16_singlestep(probes_opcode_t opcode, |
b4cd605c | 847 | struct arch_probes_insn *asi, |
7579f4b3 | 848 | struct pt_regs *regs) |
87abef63 DL |
849 | { |
850 | regs->ARM_pc += 2; | |
7579f4b3 | 851 | asi->insn_handler(opcode, asi, regs); |
87abef63 DL |
852 | regs->ARM_cpsr = it_advance(regs->ARM_cpsr); |
853 | } | |
854 | ||
f145d664 | 855 | static void __kprobes thumb32_singlestep(probes_opcode_t opcode, |
b4cd605c | 856 | struct arch_probes_insn *asi, |
7579f4b3 | 857 | struct pt_regs *regs) |
87abef63 DL |
858 | { |
859 | regs->ARM_pc += 4; | |
7579f4b3 | 860 | asi->insn_handler(opcode, asi, regs); |
87abef63 DL |
861 | regs->ARM_cpsr = it_advance(regs->ARM_cpsr); |
862 | } | |
863 | ||
44a0a59c | 864 | enum probes_insn __kprobes |
b4cd605c | 865 | thumb16_probes_decode_insn(probes_opcode_t insn, struct arch_probes_insn *asi, |
83803d97 WN |
866 | bool emulate, const union decode_action *actions, |
867 | const struct decode_checker *checkers[]) | |
87abef63 DL |
868 | { |
869 | asi->insn_singlestep = thumb16_singlestep; | |
870 | asi->insn_check_cc = thumb_check_cc; | |
47e190fa | 871 | return probes_decode_insn(insn, asi, probes_decode_thumb16_table, true, |
83803d97 | 872 | emulate, actions, checkers); |
87abef63 DL |
873 | } |
874 | ||
44a0a59c | 875 | enum probes_insn __kprobes |
b4cd605c | 876 | thumb32_probes_decode_insn(probes_opcode_t insn, struct arch_probes_insn *asi, |
83803d97 WN |
877 | bool emulate, const union decode_action *actions, |
878 | const struct decode_checker *checkers[]) | |
87abef63 DL |
879 | { |
880 | asi->insn_singlestep = thumb32_singlestep; | |
881 | asi->insn_check_cc = thumb_check_cc; | |
47e190fa | 882 | return probes_decode_insn(insn, asi, probes_decode_thumb32_table, true, |
83803d97 | 883 | emulate, actions, checkers); |
87abef63 | 884 | } |