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1ae3db19 MS |
1 | /* Target-dependent code for GNU/Linux AArch64. |
2 | ||
e2882c85 | 3 | Copyright (C) 2009-2018 Free Software Foundation, Inc. |
1ae3db19 MS |
4 | Contributed by ARM Ltd. |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | #include "defs.h" | |
22 | ||
23 | #include "gdbarch.h" | |
b6542f81 | 24 | #include "arch-utils.h" |
1ae3db19 MS |
25 | #include "glibc-tdep.h" |
26 | #include "linux-tdep.h" | |
27 | #include "aarch64-tdep.h" | |
28 | #include "aarch64-linux-tdep.h" | |
29 | #include "osabi.h" | |
30 | #include "solib-svr4.h" | |
31 | #include "symtab.h" | |
32 | #include "tramp-frame.h" | |
33 | #include "trad-frame.h" | |
34 | ||
35 | #include "inferior.h" | |
36 | #include "regcache.h" | |
37 | #include "regset.h" | |
38 | ||
08248ca9 SDJ |
39 | #include "cli/cli-utils.h" |
40 | #include "stap-probe.h" | |
41 | #include "parser-defs.h" | |
42 | #include "user-regs.h" | |
f68f11b7 | 43 | #include "xml-syscall.h" |
08248ca9 SDJ |
44 | #include <ctype.h> |
45 | ||
99afc88b OJ |
46 | #include "record-full.h" |
47 | #include "linux-record.h" | |
cd3af38d JW |
48 | #include "auxv.h" |
49 | #include "elf/common.h" | |
99afc88b | 50 | |
1ae3db19 MS |
51 | /* Signal frame handling. |
52 | ||
f2205de0 HZ |
53 | +------------+ ^ |
54 | | saved lr | | | |
55 | +->| saved fp |--+ | |
56 | | | | | |
57 | | | | | |
58 | | +------------+ | |
59 | | | saved lr | | |
60 | +--| saved fp | | |
61 | ^ | | | |
62 | | | | | |
63 | | +------------+ | |
64 | ^ | | | |
65 | | | signal | | |
66 | | | | SIGTRAMP_FRAME (struct rt_sigframe) | |
67 | | | saved regs | | |
68 | +--| saved sp |--> interrupted_sp | |
69 | | | saved pc |--> interrupted_pc | |
70 | | | | | |
71 | | +------------+ | |
72 | | | saved lr |--> default_restorer (movz x8, NR_sys_rt_sigreturn; svc 0) | |
73 | +--| saved fp |<- FP | |
74 | | | NORMAL_FRAME | |
75 | | |<- SP | |
76 | +------------+ | |
1ae3db19 MS |
77 | |
78 | On signal delivery, the kernel will create a signal handler stack | |
79 | frame and setup the return address in LR to point at restorer stub. | |
80 | The signal stack frame is defined by: | |
81 | ||
82 | struct rt_sigframe | |
83 | { | |
84 | siginfo_t info; | |
85 | struct ucontext uc; | |
86 | }; | |
87 | ||
1ae3db19 MS |
88 | The ucontext has the following form: |
89 | struct ucontext | |
90 | { | |
91 | unsigned long uc_flags; | |
92 | struct ucontext *uc_link; | |
93 | stack_t uc_stack; | |
94 | sigset_t uc_sigmask; | |
95 | struct sigcontext uc_mcontext; | |
96 | }; | |
97 | ||
1ae3db19 MS |
98 | struct sigcontext |
99 | { | |
100 | unsigned long fault_address; | |
101 | unsigned long regs[31]; | |
102 | unsigned long sp; / * 31 * / | |
103 | unsigned long pc; / * 32 * / | |
104 | unsigned long pstate; / * 33 * / | |
105 | __u8 __reserved[4096] | |
106 | }; | |
107 | ||
05c71722 AH |
108 | The reserved space in sigcontext contains additional structures, each starting |
109 | with a aarch64_ctx, which specifies a unique identifier and the total size of | |
110 | the structure. The final structure in reserved will start will a null | |
111 | aarch64_ctx. The penultimate entry in reserved may be a extra_context which | |
112 | then points to a further block of reserved space. | |
113 | ||
114 | struct aarch64_ctx { | |
115 | u32 magic; | |
116 | u32 size; | |
117 | }; | |
118 | ||
1ae3db19 MS |
119 | The restorer stub will always have the form: |
120 | ||
121 | d28015a8 movz x8, #0xad | |
122 | d4000001 svc #0x0 | |
123 | ||
f2205de0 HZ |
124 | This is a system call sys_rt_sigreturn. |
125 | ||
1ae3db19 MS |
126 | We detect signal frames by snooping the return code for the restorer |
127 | instruction sequence. | |
128 | ||
129 | The handler then needs to recover the saved register set from | |
130 | ucontext.uc_mcontext. */ | |
131 | ||
132 | /* These magic numbers need to reflect the layout of the kernel | |
133 | defined struct rt_sigframe and ucontext. */ | |
134 | #define AARCH64_SIGCONTEXT_REG_SIZE 8 | |
135 | #define AARCH64_RT_SIGFRAME_UCONTEXT_OFFSET 128 | |
136 | #define AARCH64_UCONTEXT_SIGCONTEXT_OFFSET 176 | |
137 | #define AARCH64_SIGCONTEXT_XO_OFFSET 8 | |
05c71722 AH |
138 | #define AARCH64_SIGCONTEXT_RESERVED_OFFSET 288 |
139 | ||
140 | /* Unique identifiers that may be used for aarch64_ctx.magic. */ | |
141 | #define AARCH64_EXTRA_MAGIC 0x45585401 | |
142 | #define AARCH64_FPSIMD_MAGIC 0x46508001 | |
143 | #define AARCH64_SVE_MAGIC 0x53564501 | |
144 | ||
145 | /* Defines for the extra_context that follows an AARCH64_EXTRA_MAGIC. */ | |
146 | #define AARCH64_EXTRA_DATAP_OFFSET 8 | |
147 | ||
148 | /* Defines for the fpsimd that follows an AARCH64_FPSIMD_MAGIC. */ | |
149 | #define AARCH64_FPSIMD_FPSR_OFFSET 8 | |
150 | #define AARCH64_FPSIMD_FPCR_OFFSET 12 | |
151 | #define AARCH64_FPSIMD_V0_OFFSET 16 | |
152 | #define AARCH64_FPSIMD_VREG_SIZE 16 | |
153 | ||
154 | /* Defines for the sve structure that follows an AARCH64_SVE_MAGIC. */ | |
155 | #define AARCH64_SVE_CONTEXT_VL_OFFSET 8 | |
156 | #define AARCH64_SVE_CONTEXT_REGS_OFFSET 16 | |
157 | #define AARCH64_SVE_CONTEXT_P_REGS_OFFSET(vq) (32 * vq * 16) | |
158 | #define AARCH64_SVE_CONTEXT_FFR_OFFSET(vq) \ | |
159 | (AARCH64_SVE_CONTEXT_P_REGS_OFFSET (vq) + (16 * vq * 2)) | |
160 | #define AARCH64_SVE_CONTEXT_SIZE(vq) \ | |
161 | (AARCH64_SVE_CONTEXT_FFR_OFFSET (vq) + (vq * 2)) | |
162 | ||
163 | ||
164 | /* Read an aarch64_ctx, returning the magic value, and setting *SIZE to the | |
165 | size, or return 0 on error. */ | |
166 | ||
167 | static uint32_t | |
168 | read_aarch64_ctx (CORE_ADDR ctx_addr, enum bfd_endian byte_order, | |
169 | uint32_t *size) | |
170 | { | |
171 | uint32_t magic = 0; | |
172 | gdb_byte buf[4]; | |
173 | ||
174 | if (target_read_memory (ctx_addr, buf, 4) != 0) | |
175 | return 0; | |
176 | magic = extract_unsigned_integer (buf, 4, byte_order); | |
177 | ||
178 | if (target_read_memory (ctx_addr + 4, buf, 4) != 0) | |
179 | return 0; | |
180 | *size = extract_unsigned_integer (buf, 4, byte_order); | |
181 | ||
182 | return magic; | |
183 | } | |
1ae3db19 MS |
184 | |
185 | /* Implement the "init" method of struct tramp_frame. */ | |
186 | ||
187 | static void | |
188 | aarch64_linux_sigframe_init (const struct tramp_frame *self, | |
189 | struct frame_info *this_frame, | |
190 | struct trad_frame_cache *this_cache, | |
191 | CORE_ADDR func) | |
192 | { | |
05c71722 AH |
193 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
194 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
195 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
1ae3db19 | 196 | CORE_ADDR sp = get_frame_register_unsigned (this_frame, AARCH64_SP_REGNUM); |
05c71722 AH |
197 | CORE_ADDR sigcontext_addr = (sp + AARCH64_RT_SIGFRAME_UCONTEXT_OFFSET |
198 | + AARCH64_UCONTEXT_SIGCONTEXT_OFFSET ); | |
199 | CORE_ADDR section = sigcontext_addr + AARCH64_SIGCONTEXT_RESERVED_OFFSET; | |
200 | CORE_ADDR fpsimd = 0; | |
201 | CORE_ADDR sve_regs = 0; | |
202 | uint32_t size, magic; | |
203 | int num_regs = gdbarch_num_regs (gdbarch); | |
204 | ||
205 | /* Read in the integer registers. */ | |
1ae3db19 | 206 | |
05c71722 | 207 | for (int i = 0; i < 31; i++) |
1ae3db19 MS |
208 | { |
209 | trad_frame_set_reg_addr (this_cache, | |
210 | AARCH64_X0_REGNUM + i, | |
211 | sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET | |
05c71722 | 212 | + i * AARCH64_SIGCONTEXT_REG_SIZE); |
1ae3db19 | 213 | } |
f2205de0 HZ |
214 | trad_frame_set_reg_addr (this_cache, AARCH64_SP_REGNUM, |
215 | sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET | |
216 | + 31 * AARCH64_SIGCONTEXT_REG_SIZE); | |
217 | trad_frame_set_reg_addr (this_cache, AARCH64_PC_REGNUM, | |
218 | sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET | |
219 | + 32 * AARCH64_SIGCONTEXT_REG_SIZE); | |
220 | ||
05c71722 AH |
221 | /* Find the FP and SVE sections. */ |
222 | while ((magic = read_aarch64_ctx (section, byte_order, &size)) != 0) | |
223 | { | |
224 | switch (magic) | |
225 | { | |
226 | case AARCH64_FPSIMD_MAGIC: | |
227 | fpsimd = section; | |
228 | section += size; | |
229 | break; | |
230 | ||
231 | case AARCH64_SVE_MAGIC: | |
232 | { | |
233 | /* Check if the section is followed by a full SVE dump, and set | |
234 | sve_regs if it is. */ | |
235 | gdb_byte buf[4]; | |
236 | uint16_t vq; | |
237 | ||
238 | if (!tdep->has_sve ()) | |
239 | break; | |
240 | ||
241 | if (target_read_memory (section + AARCH64_SVE_CONTEXT_VL_OFFSET, | |
242 | buf, 2) != 0) | |
243 | { | |
244 | section += size; | |
245 | break; | |
246 | } | |
247 | vq = sve_vq_from_vl (extract_unsigned_integer (buf, 2, byte_order)); | |
248 | ||
249 | if (vq != tdep->vq) | |
2398abf8 TT |
250 | error (_("Invalid vector length in signal frame %d vs %s."), vq, |
251 | pulongest (tdep->vq)); | |
05c71722 AH |
252 | |
253 | if (size >= AARCH64_SVE_CONTEXT_SIZE (vq)) | |
254 | sve_regs = section + AARCH64_SVE_CONTEXT_REGS_OFFSET; | |
255 | ||
256 | section += size; | |
257 | break; | |
258 | } | |
259 | ||
260 | case AARCH64_EXTRA_MAGIC: | |
261 | { | |
262 | /* Extra is always the last valid section in reserved and points to | |
263 | an additional block of memory filled with more sections. Reset | |
264 | the address to the extra section and continue looking for more | |
265 | structures. */ | |
266 | gdb_byte buf[8]; | |
267 | ||
268 | if (target_read_memory (section + AARCH64_EXTRA_DATAP_OFFSET, | |
269 | buf, 8) != 0) | |
270 | { | |
271 | section += size; | |
272 | break; | |
273 | } | |
274 | ||
275 | section = extract_unsigned_integer (buf, 8, byte_order); | |
276 | break; | |
277 | } | |
278 | ||
279 | default: | |
280 | break; | |
281 | } | |
282 | } | |
283 | ||
284 | if (sve_regs != 0) | |
285 | { | |
286 | CORE_ADDR offset; | |
287 | ||
288 | for (int i = 0; i < 32; i++) | |
289 | { | |
290 | offset = sve_regs + (i * tdep->vq * 16); | |
291 | trad_frame_set_reg_addr (this_cache, AARCH64_SVE_Z0_REGNUM + i, | |
292 | offset); | |
293 | trad_frame_set_reg_addr (this_cache, | |
294 | num_regs + AARCH64_SVE_V0_REGNUM + i, | |
295 | offset); | |
296 | trad_frame_set_reg_addr (this_cache, num_regs + AARCH64_Q0_REGNUM + i, | |
297 | offset); | |
298 | trad_frame_set_reg_addr (this_cache, num_regs + AARCH64_D0_REGNUM + i, | |
299 | offset); | |
300 | trad_frame_set_reg_addr (this_cache, num_regs + AARCH64_S0_REGNUM + i, | |
301 | offset); | |
302 | trad_frame_set_reg_addr (this_cache, num_regs + AARCH64_H0_REGNUM + i, | |
303 | offset); | |
304 | trad_frame_set_reg_addr (this_cache, num_regs + AARCH64_B0_REGNUM + i, | |
305 | offset); | |
306 | } | |
307 | ||
308 | offset = sve_regs + AARCH64_SVE_CONTEXT_P_REGS_OFFSET (tdep->vq); | |
309 | for (int i = 0; i < 16; i++) | |
310 | trad_frame_set_reg_addr (this_cache, AARCH64_SVE_P0_REGNUM + i, | |
311 | offset + (i * tdep->vq * 2)); | |
312 | ||
313 | offset = sve_regs + AARCH64_SVE_CONTEXT_FFR_OFFSET (tdep->vq); | |
314 | trad_frame_set_reg_addr (this_cache, AARCH64_SVE_FFR_REGNUM, offset); | |
315 | } | |
316 | ||
317 | if (fpsimd != 0) | |
318 | { | |
319 | trad_frame_set_reg_addr (this_cache, AARCH64_FPSR_REGNUM, | |
320 | fpsimd + AARCH64_FPSIMD_FPSR_OFFSET); | |
321 | trad_frame_set_reg_addr (this_cache, AARCH64_FPCR_REGNUM, | |
322 | fpsimd + AARCH64_FPSIMD_FPCR_OFFSET); | |
323 | ||
324 | /* If there was no SVE section then set up the V registers. */ | |
325 | if (sve_regs == 0) | |
326 | for (int i = 0; i < 32; i++) | |
327 | { | |
328 | CORE_ADDR offset = (fpsimd + AARCH64_FPSIMD_V0_OFFSET | |
329 | + (i * AARCH64_FPSIMD_VREG_SIZE)); | |
330 | ||
331 | trad_frame_set_reg_addr (this_cache, AARCH64_V0_REGNUM + i, offset); | |
332 | trad_frame_set_reg_addr (this_cache, | |
333 | num_regs + AARCH64_Q0_REGNUM + i, offset); | |
334 | trad_frame_set_reg_addr (this_cache, | |
335 | num_regs + AARCH64_D0_REGNUM + i, offset); | |
336 | trad_frame_set_reg_addr (this_cache, | |
337 | num_regs + AARCH64_S0_REGNUM + i, offset); | |
338 | trad_frame_set_reg_addr (this_cache, | |
339 | num_regs + AARCH64_H0_REGNUM + i, offset); | |
340 | trad_frame_set_reg_addr (this_cache, | |
341 | num_regs + AARCH64_B0_REGNUM + i, offset); | |
342 | if (tdep->has_sve ()) | |
343 | trad_frame_set_reg_addr (this_cache, | |
344 | num_regs + AARCH64_SVE_V0_REGNUM + i, | |
345 | offset); | |
346 | } | |
347 | } | |
348 | ||
f2205de0 | 349 | trad_frame_set_id (this_cache, frame_id_build (sp, func)); |
1ae3db19 MS |
350 | } |
351 | ||
352 | static const struct tramp_frame aarch64_linux_rt_sigframe = | |
353 | { | |
354 | SIGTRAMP_FRAME, | |
355 | 4, | |
356 | { | |
357 | /* movz x8, 0x8b (S=1,o=10,h=0,i=0x8b,r=8) | |
358 | Soo1 0010 1hhi iiii iiii iiii iiir rrrr */ | |
7bc02706 | 359 | {0xd2801168, ULONGEST_MAX}, |
1ae3db19 MS |
360 | |
361 | /* svc 0x0 (o=0, l=1) | |
362 | 1101 0100 oooi iiii iiii iiii iii0 00ll */ | |
7bc02706 TT |
363 | {0xd4000001, ULONGEST_MAX}, |
364 | {TRAMP_SENTINEL_INSN, ULONGEST_MAX} | |
1ae3db19 MS |
365 | }, |
366 | aarch64_linux_sigframe_init | |
367 | }; | |
368 | ||
d4d793bf | 369 | /* Register maps. */ |
1ae3db19 | 370 | |
d4d793bf AA |
371 | static const struct regcache_map_entry aarch64_linux_gregmap[] = |
372 | { | |
373 | { 31, AARCH64_X0_REGNUM, 8 }, /* x0 ... x30 */ | |
374 | { 1, AARCH64_SP_REGNUM, 8 }, | |
375 | { 1, AARCH64_PC_REGNUM, 8 }, | |
376 | { 1, AARCH64_CPSR_REGNUM, 8 }, | |
377 | { 0 } | |
378 | }; | |
1ae3db19 | 379 | |
d4d793bf AA |
380 | static const struct regcache_map_entry aarch64_linux_fpregmap[] = |
381 | { | |
382 | { 32, AARCH64_V0_REGNUM, 16 }, /* v0 ... v31 */ | |
383 | { 1, AARCH64_FPSR_REGNUM, 4 }, | |
384 | { 1, AARCH64_FPCR_REGNUM, 4 }, | |
385 | { 0 } | |
386 | }; | |
1ae3db19 | 387 | |
d4d793bf | 388 | /* Register set definitions. */ |
a069a2bd | 389 | |
d4d793bf | 390 | const struct regset aarch64_linux_gregset = |
a069a2bd | 391 | { |
d4d793bf AA |
392 | aarch64_linux_gregmap, |
393 | regcache_supply_regset, regcache_collect_regset | |
a069a2bd AA |
394 | }; |
395 | ||
d4d793bf | 396 | const struct regset aarch64_linux_fpregset = |
a069a2bd | 397 | { |
d4d793bf AA |
398 | aarch64_linux_fpregmap, |
399 | regcache_supply_regset, regcache_collect_regset | |
a069a2bd AA |
400 | }; |
401 | ||
b7fd65b9 AH |
402 | /* The fields in an SVE header at the start of a SVE regset. */ |
403 | ||
404 | #define SVE_HEADER_SIZE_LENGTH 4 | |
405 | #define SVE_HEADER_MAX_SIZE_LENGTH 4 | |
406 | #define SVE_HEADER_VL_LENGTH 2 | |
407 | #define SVE_HEADER_MAX_VL_LENGTH 2 | |
408 | #define SVE_HEADER_FLAGS_LENGTH 2 | |
409 | #define SVE_HEADER_RESERVED_LENGTH 2 | |
410 | ||
411 | #define SVE_HEADER_SIZE_OFFSET 0 | |
412 | #define SVE_HEADER_MAX_SIZE_OFFSET \ | |
413 | (SVE_HEADER_SIZE_OFFSET + SVE_HEADER_SIZE_LENGTH) | |
414 | #define SVE_HEADER_VL_OFFSET \ | |
415 | (SVE_HEADER_MAX_SIZE_OFFSET + SVE_HEADER_MAX_SIZE_LENGTH) | |
416 | #define SVE_HEADER_MAX_VL_OFFSET \ | |
417 | (SVE_HEADER_VL_OFFSET + SVE_HEADER_VL_LENGTH) | |
418 | #define SVE_HEADER_FLAGS_OFFSET \ | |
419 | (SVE_HEADER_MAX_VL_OFFSET + SVE_HEADER_MAX_VL_LENGTH) | |
420 | #define SVE_HEADER_RESERVED_OFFSET \ | |
421 | (SVE_HEADER_FLAGS_OFFSET + SVE_HEADER_FLAGS_LENGTH) | |
422 | #define SVE_HEADER_SIZE \ | |
423 | (SVE_HEADER_RESERVED_OFFSET + SVE_HEADER_RESERVED_LENGTH) | |
424 | ||
0c76e06d AH |
425 | #define SVE_HEADER_FLAG_SVE 1 |
426 | ||
b7fd65b9 AH |
427 | /* Get VQ value from SVE section in the core dump. */ |
428 | ||
429 | static uint64_t | |
430 | aarch64_linux_core_read_vq (struct gdbarch *gdbarch, bfd *abfd) | |
431 | { | |
432 | gdb_byte header[SVE_HEADER_SIZE]; | |
433 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
434 | asection *sve_section = bfd_get_section_by_name (abfd, ".reg-aarch-sve"); | |
435 | ||
436 | if (sve_section == nullptr) | |
437 | { | |
438 | /* No SVE state. */ | |
439 | return 0; | |
440 | } | |
441 | ||
442 | size_t size = bfd_section_size (abfd, sve_section); | |
443 | ||
444 | /* Check extended state size. */ | |
445 | if (size < SVE_HEADER_SIZE) | |
446 | { | |
447 | warning (_("'.reg-aarch-sve' section in core file too small.")); | |
448 | return 0; | |
449 | } | |
450 | ||
451 | if (!bfd_get_section_contents (abfd, sve_section, header, 0, SVE_HEADER_SIZE)) | |
452 | { | |
453 | warning (_("Couldn't read sve header from " | |
454 | "'.reg-aarch-sve' section in core file.")); | |
455 | return 0; | |
456 | } | |
457 | ||
458 | uint64_t vl = extract_unsigned_integer (header + SVE_HEADER_VL_OFFSET, | |
459 | SVE_HEADER_VL_LENGTH, byte_order); | |
460 | uint64_t vq = sve_vq_from_vl (vl); | |
461 | ||
462 | if (vq > AARCH64_MAX_SVE_VQ) | |
463 | { | |
464 | warning (_("SVE Vector length in core file not supported by this version" | |
49514353 | 465 | " of GDB. (VQ=%s)"), pulongest (vq)); |
b7fd65b9 AH |
466 | return 0; |
467 | } | |
468 | else if (vq == 0) | |
469 | { | |
49514353 TT |
470 | warning (_("SVE Vector length in core file is invalid. (VQ=%s"), |
471 | pulongest (vq)); | |
b7fd65b9 AH |
472 | return 0; |
473 | } | |
474 | ||
475 | return vq; | |
476 | } | |
477 | ||
0c76e06d AH |
478 | /* Supply register REGNUM from BUF to REGCACHE, using the register map |
479 | in REGSET. If REGNUM is -1, do this for all registers in REGSET. | |
480 | If BUF is NULL, set the registers to "unavailable" status. */ | |
481 | ||
482 | static void | |
483 | aarch64_linux_supply_sve_regset (const struct regset *regset, | |
484 | struct regcache *regcache, | |
485 | int regnum, const void *buf, size_t size) | |
486 | { | |
487 | gdb_byte *header = (gdb_byte *) buf; | |
488 | struct gdbarch *gdbarch = regcache->arch (); | |
489 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
490 | ||
491 | if (buf == nullptr) | |
492 | return regcache->supply_regset (regset, regnum, nullptr, size); | |
493 | gdb_assert (size > SVE_HEADER_SIZE); | |
494 | ||
495 | /* BUF contains an SVE header followed by a register dump of either the | |
496 | passed in SVE regset or a NEON fpregset. */ | |
497 | ||
498 | /* Extract required fields from the header. */ | |
0c0a40e0 | 499 | ULONGEST vl = extract_unsigned_integer (header + SVE_HEADER_VL_OFFSET, |
0c76e06d AH |
500 | SVE_HEADER_VL_LENGTH, byte_order); |
501 | uint16_t flags = extract_unsigned_integer (header + SVE_HEADER_FLAGS_OFFSET, | |
502 | SVE_HEADER_FLAGS_LENGTH, | |
503 | byte_order); | |
504 | ||
505 | if (regnum == -1 || regnum == AARCH64_SVE_VG_REGNUM) | |
506 | { | |
507 | gdb_byte vg_target[8]; | |
508 | store_integer ((gdb_byte *)&vg_target, sizeof (uint64_t), byte_order, | |
509 | sve_vg_from_vl (vl)); | |
510 | regcache->raw_supply (AARCH64_SVE_VG_REGNUM, &vg_target); | |
511 | } | |
512 | ||
513 | if (flags & SVE_HEADER_FLAG_SVE) | |
514 | { | |
515 | /* Register dump is a SVE structure. */ | |
516 | regcache->supply_regset (regset, regnum, | |
517 | (gdb_byte *) buf + SVE_HEADER_SIZE, | |
518 | size - SVE_HEADER_SIZE); | |
519 | } | |
520 | else | |
521 | { | |
522 | /* Register dump is a fpsimd structure. First clear the SVE | |
523 | registers. */ | |
524 | for (int i = 0; i < AARCH64_SVE_Z_REGS_NUM; i++) | |
525 | regcache->raw_supply_zeroed (AARCH64_SVE_Z0_REGNUM + i); | |
526 | for (int i = 0; i < AARCH64_SVE_P_REGS_NUM; i++) | |
527 | regcache->raw_supply_zeroed (AARCH64_SVE_P0_REGNUM + i); | |
528 | regcache->raw_supply_zeroed (AARCH64_SVE_FFR_REGNUM); | |
529 | ||
530 | /* Then supply the fpsimd registers. */ | |
531 | regcache->supply_regset (&aarch64_linux_fpregset, regnum, | |
532 | (gdb_byte *) buf + SVE_HEADER_SIZE, | |
533 | size - SVE_HEADER_SIZE); | |
534 | } | |
535 | } | |
536 | ||
537 | /* Collect register REGNUM from REGCACHE to BUF, using the register | |
538 | map in REGSET. If REGNUM is -1, do this for all registers in | |
539 | REGSET. */ | |
540 | ||
541 | static void | |
542 | aarch64_linux_collect_sve_regset (const struct regset *regset, | |
543 | const struct regcache *regcache, | |
544 | int regnum, void *buf, size_t size) | |
545 | { | |
546 | gdb_byte *header = (gdb_byte *) buf; | |
547 | struct gdbarch *gdbarch = regcache->arch (); | |
548 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
549 | uint64_t vq = gdbarch_tdep (gdbarch)->vq; | |
550 | ||
551 | gdb_assert (buf != NULL); | |
552 | gdb_assert (size > SVE_HEADER_SIZE); | |
553 | ||
554 | /* BUF starts with a SVE header prior to the register dump. */ | |
555 | ||
556 | store_unsigned_integer (header + SVE_HEADER_SIZE_OFFSET, | |
557 | SVE_HEADER_SIZE_LENGTH, byte_order, size); | |
558 | store_unsigned_integer (header + SVE_HEADER_MAX_SIZE_OFFSET, | |
559 | SVE_HEADER_MAX_SIZE_LENGTH, byte_order, size); | |
560 | store_unsigned_integer (header + SVE_HEADER_VL_OFFSET, SVE_HEADER_VL_LENGTH, | |
561 | byte_order, sve_vl_from_vq (vq)); | |
562 | store_unsigned_integer (header + SVE_HEADER_MAX_VL_OFFSET, | |
563 | SVE_HEADER_MAX_VL_LENGTH, byte_order, | |
564 | sve_vl_from_vq (vq)); | |
565 | store_unsigned_integer (header + SVE_HEADER_FLAGS_OFFSET, | |
566 | SVE_HEADER_FLAGS_LENGTH, byte_order, | |
567 | SVE_HEADER_FLAG_SVE); | |
568 | store_unsigned_integer (header + SVE_HEADER_RESERVED_OFFSET, | |
569 | SVE_HEADER_RESERVED_LENGTH, byte_order, 0); | |
570 | ||
571 | /* The SVE register dump follows. */ | |
572 | regcache->collect_regset (regset, regnum, (gdb_byte *) buf + SVE_HEADER_SIZE, | |
573 | size - SVE_HEADER_SIZE); | |
574 | } | |
575 | ||
1ae3db19 MS |
576 | /* Implement the "regset_from_core_section" gdbarch method. */ |
577 | ||
4108500a AA |
578 | static void |
579 | aarch64_linux_iterate_over_regset_sections (struct gdbarch *gdbarch, | |
580 | iterate_over_regset_sections_cb *cb, | |
581 | void *cb_data, | |
582 | const struct regcache *regcache) | |
1ae3db19 | 583 | { |
0c76e06d AH |
584 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
585 | ||
a616bb94 AH |
586 | cb (".reg", AARCH64_LINUX_SIZEOF_GREGSET, AARCH64_LINUX_SIZEOF_GREGSET, |
587 | &aarch64_linux_gregset, NULL, cb_data); | |
0c76e06d AH |
588 | |
589 | if (tdep->has_sve ()) | |
590 | { | |
591 | /* Create this on the fly in order to handle vector register sizes. */ | |
592 | const struct regcache_map_entry sve_regmap[] = | |
593 | { | |
1885053b TT |
594 | { 32, AARCH64_SVE_Z0_REGNUM, (int) (tdep->vq * 16) }, |
595 | { 16, AARCH64_SVE_P0_REGNUM, (int) (tdep->vq * 16 / 8) }, | |
0c76e06d AH |
596 | { 1, AARCH64_SVE_FFR_REGNUM, 4 }, |
597 | { 1, AARCH64_FPSR_REGNUM, 4 }, | |
598 | { 1, AARCH64_FPCR_REGNUM, 4 }, | |
599 | { 0 } | |
600 | }; | |
601 | ||
602 | const struct regset aarch64_linux_sve_regset = | |
603 | { | |
604 | sve_regmap, | |
605 | aarch64_linux_supply_sve_regset, aarch64_linux_collect_sve_regset, | |
606 | REGSET_VARIABLE_SIZE | |
607 | }; | |
608 | ||
609 | cb (".reg-aarch-sve", | |
610 | SVE_HEADER_SIZE + regcache_map_entry_size (aarch64_linux_fpregmap), | |
611 | SVE_HEADER_SIZE + regcache_map_entry_size (sve_regmap), | |
612 | &aarch64_linux_sve_regset, "SVE registers", cb_data); | |
613 | } | |
614 | else | |
615 | cb (".reg2", AARCH64_LINUX_SIZEOF_FPREGSET, AARCH64_LINUX_SIZEOF_FPREGSET, | |
616 | &aarch64_linux_fpregset, NULL, cb_data); | |
1ae3db19 MS |
617 | } |
618 | ||
b7fd65b9 | 619 | /* Implement the "core_read_description" gdbarch method. */ |
cd3af38d JW |
620 | |
621 | static const struct target_desc * | |
622 | aarch64_linux_core_read_description (struct gdbarch *gdbarch, | |
623 | struct target_ops *target, bfd *abfd) | |
624 | { | |
625 | CORE_ADDR aarch64_hwcap = 0; | |
626 | ||
627 | if (target_auxv_search (target, AT_HWCAP, &aarch64_hwcap) != 1) | |
628 | return NULL; | |
629 | ||
b7fd65b9 | 630 | return aarch64_read_description (aarch64_linux_core_read_vq (gdbarch, abfd)); |
cd3af38d JW |
631 | } |
632 | ||
08248ca9 SDJ |
633 | /* Implementation of `gdbarch_stap_is_single_operand', as defined in |
634 | gdbarch.h. */ | |
635 | ||
636 | static int | |
637 | aarch64_stap_is_single_operand (struct gdbarch *gdbarch, const char *s) | |
638 | { | |
639 | return (*s == '#' || isdigit (*s) /* Literal number. */ | |
640 | || *s == '[' /* Register indirection. */ | |
641 | || isalpha (*s)); /* Register value. */ | |
642 | } | |
643 | ||
644 | /* This routine is used to parse a special token in AArch64's assembly. | |
645 | ||
646 | The special tokens parsed by it are: | |
647 | ||
648 | - Register displacement (e.g, [fp, #-8]) | |
649 | ||
650 | It returns one if the special token has been parsed successfully, | |
651 | or zero if the current token is not considered special. */ | |
652 | ||
653 | static int | |
654 | aarch64_stap_parse_special_token (struct gdbarch *gdbarch, | |
655 | struct stap_parse_info *p) | |
656 | { | |
657 | if (*p->arg == '[') | |
658 | { | |
659 | /* Temporary holder for lookahead. */ | |
660 | const char *tmp = p->arg; | |
661 | char *endp; | |
662 | /* Used to save the register name. */ | |
663 | const char *start; | |
664 | char *regname; | |
665 | int len; | |
666 | int got_minus = 0; | |
667 | long displacement; | |
668 | struct stoken str; | |
669 | ||
670 | ++tmp; | |
671 | start = tmp; | |
672 | ||
673 | /* Register name. */ | |
674 | while (isalnum (*tmp)) | |
675 | ++tmp; | |
676 | ||
677 | if (*tmp != ',') | |
678 | return 0; | |
679 | ||
680 | len = tmp - start; | |
224c3ddb | 681 | regname = (char *) alloca (len + 2); |
08248ca9 SDJ |
682 | |
683 | strncpy (regname, start, len); | |
684 | regname[len] = '\0'; | |
685 | ||
686 | if (user_reg_map_name_to_regnum (gdbarch, regname, len) == -1) | |
687 | error (_("Invalid register name `%s' on expression `%s'."), | |
688 | regname, p->saved_arg); | |
689 | ||
690 | ++tmp; | |
f1735a53 | 691 | tmp = skip_spaces (tmp); |
08248ca9 SDJ |
692 | /* Now we expect a number. It can begin with '#' or simply |
693 | a digit. */ | |
694 | if (*tmp == '#') | |
695 | ++tmp; | |
696 | ||
697 | if (*tmp == '-') | |
698 | { | |
699 | ++tmp; | |
700 | got_minus = 1; | |
701 | } | |
702 | else if (*tmp == '+') | |
703 | ++tmp; | |
704 | ||
705 | if (!isdigit (*tmp)) | |
706 | return 0; | |
707 | ||
708 | displacement = strtol (tmp, &endp, 10); | |
709 | tmp = endp; | |
710 | ||
711 | /* Skipping last `]'. */ | |
712 | if (*tmp++ != ']') | |
713 | return 0; | |
714 | ||
715 | /* The displacement. */ | |
410a0ff2 SDJ |
716 | write_exp_elt_opcode (&p->pstate, OP_LONG); |
717 | write_exp_elt_type (&p->pstate, builtin_type (gdbarch)->builtin_long); | |
718 | write_exp_elt_longcst (&p->pstate, displacement); | |
719 | write_exp_elt_opcode (&p->pstate, OP_LONG); | |
08248ca9 | 720 | if (got_minus) |
410a0ff2 | 721 | write_exp_elt_opcode (&p->pstate, UNOP_NEG); |
08248ca9 SDJ |
722 | |
723 | /* The register name. */ | |
410a0ff2 | 724 | write_exp_elt_opcode (&p->pstate, OP_REGISTER); |
08248ca9 SDJ |
725 | str.ptr = regname; |
726 | str.length = len; | |
410a0ff2 SDJ |
727 | write_exp_string (&p->pstate, str); |
728 | write_exp_elt_opcode (&p->pstate, OP_REGISTER); | |
08248ca9 | 729 | |
410a0ff2 | 730 | write_exp_elt_opcode (&p->pstate, BINOP_ADD); |
08248ca9 SDJ |
731 | |
732 | /* Casting to the expected type. */ | |
410a0ff2 SDJ |
733 | write_exp_elt_opcode (&p->pstate, UNOP_CAST); |
734 | write_exp_elt_type (&p->pstate, lookup_pointer_type (p->arg_type)); | |
735 | write_exp_elt_opcode (&p->pstate, UNOP_CAST); | |
08248ca9 | 736 | |
410a0ff2 | 737 | write_exp_elt_opcode (&p->pstate, UNOP_IND); |
08248ca9 SDJ |
738 | |
739 | p->arg = tmp; | |
740 | } | |
741 | else | |
742 | return 0; | |
743 | ||
744 | return 1; | |
745 | } | |
746 | ||
f68f11b7 YQ |
747 | /* Implement the "get_syscall_number" gdbarch method. */ |
748 | ||
749 | static LONGEST | |
750 | aarch64_linux_get_syscall_number (struct gdbarch *gdbarch, | |
00431a78 | 751 | thread_info *thread) |
f68f11b7 | 752 | { |
00431a78 | 753 | struct regcache *regs = get_thread_regcache (thread); |
f68f11b7 YQ |
754 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
755 | ||
756 | /* The content of register x8. */ | |
757 | gdb_byte buf[X_REGISTER_SIZE]; | |
758 | /* The result. */ | |
759 | LONGEST ret; | |
760 | ||
761 | /* Getting the system call number from the register x8. */ | |
dca08e1f | 762 | regs->cooked_read (AARCH64_DWARF_X0 + 8, buf); |
f68f11b7 YQ |
763 | |
764 | ret = extract_signed_integer (buf, X_REGISTER_SIZE, byte_order); | |
765 | ||
766 | return ret; | |
767 | } | |
768 | ||
99afc88b OJ |
769 | /* AArch64 process record-replay constructs: syscall, signal etc. */ |
770 | ||
771 | struct linux_record_tdep aarch64_linux_record_tdep; | |
772 | ||
773 | /* Enum that defines the AArch64 linux specific syscall identifiers used for | |
774 | process record/replay. */ | |
775 | ||
776 | enum aarch64_syscall { | |
777 | aarch64_sys_io_setup = 0, | |
778 | aarch64_sys_io_destroy = 1, | |
779 | aarch64_sys_io_submit = 2, | |
780 | aarch64_sys_io_cancel = 3, | |
781 | aarch64_sys_io_getevents = 4, | |
782 | aarch64_sys_setxattr = 5, | |
783 | aarch64_sys_lsetxattr = 6, | |
784 | aarch64_sys_fsetxattr = 7, | |
785 | aarch64_sys_getxattr = 8, | |
786 | aarch64_sys_lgetxattr = 9, | |
787 | aarch64_sys_fgetxattr = 10, | |
788 | aarch64_sys_listxattr = 11, | |
789 | aarch64_sys_llistxattr = 12, | |
790 | aarch64_sys_flistxattr = 13, | |
791 | aarch64_sys_removexattr = 14, | |
792 | aarch64_sys_lremovexattr = 15, | |
793 | aarch64_sys_fremovexattr = 16, | |
794 | aarch64_sys_getcwd = 17, | |
795 | aarch64_sys_lookup_dcookie = 18, | |
796 | aarch64_sys_eventfd2 = 19, | |
797 | aarch64_sys_epoll_create1 = 20, | |
798 | aarch64_sys_epoll_ctl = 21, | |
799 | aarch64_sys_epoll_pwait = 22, | |
800 | aarch64_sys_dup = 23, | |
801 | aarch64_sys_dup3 = 24, | |
802 | aarch64_sys_fcntl = 25, | |
803 | aarch64_sys_inotify_init1 = 26, | |
804 | aarch64_sys_inotify_add_watch = 27, | |
805 | aarch64_sys_inotify_rm_watch = 28, | |
806 | aarch64_sys_ioctl = 29, | |
807 | aarch64_sys_ioprio_set = 30, | |
808 | aarch64_sys_ioprio_get = 31, | |
809 | aarch64_sys_flock = 32, | |
c955ae73 YQ |
810 | aarch64_sys_mknodat = 33, |
811 | aarch64_sys_mkdirat = 34, | |
812 | aarch64_sys_unlinkat = 35, | |
813 | aarch64_sys_symlinkat = 36, | |
814 | aarch64_sys_linkat = 37, | |
815 | aarch64_sys_renameat = 38, | |
99afc88b OJ |
816 | aarch64_sys_umount2 = 39, |
817 | aarch64_sys_mount = 40, | |
818 | aarch64_sys_pivot_root = 41, | |
819 | aarch64_sys_nfsservctl = 42, | |
820 | aarch64_sys_statfs = 43, | |
821 | aarch64_sys_fstatfs = 44, | |
822 | aarch64_sys_truncate = 45, | |
823 | aarch64_sys_ftruncate = 46, | |
824 | aarch64_sys_fallocate = 47, | |
c955ae73 | 825 | aarch64_sys_faccessat = 48, |
99afc88b OJ |
826 | aarch64_sys_chdir = 49, |
827 | aarch64_sys_fchdir = 50, | |
828 | aarch64_sys_chroot = 51, | |
829 | aarch64_sys_fchmod = 52, | |
830 | aarch64_sys_fchmodat = 53, | |
831 | aarch64_sys_fchownat = 54, | |
832 | aarch64_sys_fchown = 55, | |
c955ae73 | 833 | aarch64_sys_openat = 56, |
99afc88b OJ |
834 | aarch64_sys_close = 57, |
835 | aarch64_sys_vhangup = 58, | |
836 | aarch64_sys_pipe2 = 59, | |
837 | aarch64_sys_quotactl = 60, | |
838 | aarch64_sys_getdents64 = 61, | |
839 | aarch64_sys_lseek = 62, | |
840 | aarch64_sys_read = 63, | |
841 | aarch64_sys_write = 64, | |
842 | aarch64_sys_readv = 65, | |
843 | aarch64_sys_writev = 66, | |
844 | aarch64_sys_pread64 = 67, | |
845 | aarch64_sys_pwrite64 = 68, | |
846 | aarch64_sys_preadv = 69, | |
847 | aarch64_sys_pwritev = 70, | |
848 | aarch64_sys_sendfile = 71, | |
849 | aarch64_sys_pselect6 = 72, | |
850 | aarch64_sys_ppoll = 73, | |
851 | aarch64_sys_signalfd4 = 74, | |
852 | aarch64_sys_vmsplice = 75, | |
853 | aarch64_sys_splice = 76, | |
854 | aarch64_sys_tee = 77, | |
c955ae73 YQ |
855 | aarch64_sys_readlinkat = 78, |
856 | aarch64_sys_newfstatat = 79, | |
99afc88b OJ |
857 | aarch64_sys_fstat = 80, |
858 | aarch64_sys_sync = 81, | |
859 | aarch64_sys_fsync = 82, | |
860 | aarch64_sys_fdatasync = 83, | |
861 | aarch64_sys_sync_file_range2 = 84, | |
862 | aarch64_sys_sync_file_range = 84, | |
863 | aarch64_sys_timerfd_create = 85, | |
864 | aarch64_sys_timerfd_settime = 86, | |
865 | aarch64_sys_timerfd_gettime = 87, | |
866 | aarch64_sys_utimensat = 88, | |
867 | aarch64_sys_acct = 89, | |
868 | aarch64_sys_capget = 90, | |
869 | aarch64_sys_capset = 91, | |
870 | aarch64_sys_personality = 92, | |
871 | aarch64_sys_exit = 93, | |
872 | aarch64_sys_exit_group = 94, | |
873 | aarch64_sys_waitid = 95, | |
874 | aarch64_sys_set_tid_address = 96, | |
875 | aarch64_sys_unshare = 97, | |
876 | aarch64_sys_futex = 98, | |
877 | aarch64_sys_set_robust_list = 99, | |
878 | aarch64_sys_get_robust_list = 100, | |
879 | aarch64_sys_nanosleep = 101, | |
880 | aarch64_sys_getitimer = 102, | |
881 | aarch64_sys_setitimer = 103, | |
882 | aarch64_sys_kexec_load = 104, | |
883 | aarch64_sys_init_module = 105, | |
884 | aarch64_sys_delete_module = 106, | |
885 | aarch64_sys_timer_create = 107, | |
886 | aarch64_sys_timer_gettime = 108, | |
887 | aarch64_sys_timer_getoverrun = 109, | |
888 | aarch64_sys_timer_settime = 110, | |
889 | aarch64_sys_timer_delete = 111, | |
890 | aarch64_sys_clock_settime = 112, | |
891 | aarch64_sys_clock_gettime = 113, | |
892 | aarch64_sys_clock_getres = 114, | |
893 | aarch64_sys_clock_nanosleep = 115, | |
894 | aarch64_sys_syslog = 116, | |
895 | aarch64_sys_ptrace = 117, | |
896 | aarch64_sys_sched_setparam = 118, | |
897 | aarch64_sys_sched_setscheduler = 119, | |
898 | aarch64_sys_sched_getscheduler = 120, | |
899 | aarch64_sys_sched_getparam = 121, | |
900 | aarch64_sys_sched_setaffinity = 122, | |
901 | aarch64_sys_sched_getaffinity = 123, | |
902 | aarch64_sys_sched_yield = 124, | |
903 | aarch64_sys_sched_get_priority_max = 125, | |
904 | aarch64_sys_sched_get_priority_min = 126, | |
905 | aarch64_sys_sched_rr_get_interval = 127, | |
906 | aarch64_sys_kill = 129, | |
907 | aarch64_sys_tkill = 130, | |
908 | aarch64_sys_tgkill = 131, | |
909 | aarch64_sys_sigaltstack = 132, | |
910 | aarch64_sys_rt_sigsuspend = 133, | |
911 | aarch64_sys_rt_sigaction = 134, | |
912 | aarch64_sys_rt_sigprocmask = 135, | |
913 | aarch64_sys_rt_sigpending = 136, | |
914 | aarch64_sys_rt_sigtimedwait = 137, | |
915 | aarch64_sys_rt_sigqueueinfo = 138, | |
916 | aarch64_sys_rt_sigreturn = 139, | |
917 | aarch64_sys_setpriority = 140, | |
918 | aarch64_sys_getpriority = 141, | |
919 | aarch64_sys_reboot = 142, | |
920 | aarch64_sys_setregid = 143, | |
921 | aarch64_sys_setgid = 144, | |
922 | aarch64_sys_setreuid = 145, | |
923 | aarch64_sys_setuid = 146, | |
924 | aarch64_sys_setresuid = 147, | |
925 | aarch64_sys_getresuid = 148, | |
926 | aarch64_sys_setresgid = 149, | |
927 | aarch64_sys_getresgid = 150, | |
928 | aarch64_sys_setfsuid = 151, | |
929 | aarch64_sys_setfsgid = 152, | |
930 | aarch64_sys_times = 153, | |
931 | aarch64_sys_setpgid = 154, | |
932 | aarch64_sys_getpgid = 155, | |
933 | aarch64_sys_getsid = 156, | |
934 | aarch64_sys_setsid = 157, | |
935 | aarch64_sys_getgroups = 158, | |
936 | aarch64_sys_setgroups = 159, | |
937 | aarch64_sys_uname = 160, | |
938 | aarch64_sys_sethostname = 161, | |
939 | aarch64_sys_setdomainname = 162, | |
940 | aarch64_sys_getrlimit = 163, | |
941 | aarch64_sys_setrlimit = 164, | |
942 | aarch64_sys_getrusage = 165, | |
943 | aarch64_sys_umask = 166, | |
944 | aarch64_sys_prctl = 167, | |
945 | aarch64_sys_getcpu = 168, | |
946 | aarch64_sys_gettimeofday = 169, | |
947 | aarch64_sys_settimeofday = 170, | |
948 | aarch64_sys_adjtimex = 171, | |
949 | aarch64_sys_getpid = 172, | |
950 | aarch64_sys_getppid = 173, | |
951 | aarch64_sys_getuid = 174, | |
952 | aarch64_sys_geteuid = 175, | |
953 | aarch64_sys_getgid = 176, | |
954 | aarch64_sys_getegid = 177, | |
955 | aarch64_sys_gettid = 178, | |
956 | aarch64_sys_sysinfo = 179, | |
957 | aarch64_sys_mq_open = 180, | |
958 | aarch64_sys_mq_unlink = 181, | |
959 | aarch64_sys_mq_timedsend = 182, | |
960 | aarch64_sys_mq_timedreceive = 183, | |
961 | aarch64_sys_mq_notify = 184, | |
962 | aarch64_sys_mq_getsetattr = 185, | |
963 | aarch64_sys_msgget = 186, | |
964 | aarch64_sys_msgctl = 187, | |
965 | aarch64_sys_msgrcv = 188, | |
966 | aarch64_sys_msgsnd = 189, | |
967 | aarch64_sys_semget = 190, | |
968 | aarch64_sys_semctl = 191, | |
969 | aarch64_sys_semtimedop = 192, | |
970 | aarch64_sys_semop = 193, | |
971 | aarch64_sys_shmget = 194, | |
972 | aarch64_sys_shmctl = 195, | |
973 | aarch64_sys_shmat = 196, | |
974 | aarch64_sys_shmdt = 197, | |
975 | aarch64_sys_socket = 198, | |
976 | aarch64_sys_socketpair = 199, | |
977 | aarch64_sys_bind = 200, | |
978 | aarch64_sys_listen = 201, | |
979 | aarch64_sys_accept = 202, | |
980 | aarch64_sys_connect = 203, | |
981 | aarch64_sys_getsockname = 204, | |
982 | aarch64_sys_getpeername = 205, | |
983 | aarch64_sys_sendto = 206, | |
984 | aarch64_sys_recvfrom = 207, | |
985 | aarch64_sys_setsockopt = 208, | |
986 | aarch64_sys_getsockopt = 209, | |
987 | aarch64_sys_shutdown = 210, | |
988 | aarch64_sys_sendmsg = 211, | |
989 | aarch64_sys_recvmsg = 212, | |
990 | aarch64_sys_readahead = 213, | |
991 | aarch64_sys_brk = 214, | |
992 | aarch64_sys_munmap = 215, | |
993 | aarch64_sys_mremap = 216, | |
994 | aarch64_sys_add_key = 217, | |
995 | aarch64_sys_request_key = 218, | |
996 | aarch64_sys_keyctl = 219, | |
997 | aarch64_sys_clone = 220, | |
998 | aarch64_sys_execve = 221, | |
999 | aarch64_sys_mmap = 222, | |
1000 | aarch64_sys_fadvise64 = 223, | |
1001 | aarch64_sys_swapon = 224, | |
1002 | aarch64_sys_swapoff = 225, | |
1003 | aarch64_sys_mprotect = 226, | |
1004 | aarch64_sys_msync = 227, | |
1005 | aarch64_sys_mlock = 228, | |
1006 | aarch64_sys_munlock = 229, | |
1007 | aarch64_sys_mlockall = 230, | |
1008 | aarch64_sys_munlockall = 231, | |
1009 | aarch64_sys_mincore = 232, | |
1010 | aarch64_sys_madvise = 233, | |
1011 | aarch64_sys_remap_file_pages = 234, | |
1012 | aarch64_sys_mbind = 235, | |
1013 | aarch64_sys_get_mempolicy = 236, | |
1014 | aarch64_sys_set_mempolicy = 237, | |
1015 | aarch64_sys_migrate_pages = 238, | |
1016 | aarch64_sys_move_pages = 239, | |
1017 | aarch64_sys_rt_tgsigqueueinfo = 240, | |
1018 | aarch64_sys_perf_event_open = 241, | |
1019 | aarch64_sys_accept4 = 242, | |
1020 | aarch64_sys_recvmmsg = 243, | |
1021 | aarch64_sys_wait4 = 260, | |
1022 | aarch64_sys_prlimit64 = 261, | |
1023 | aarch64_sys_fanotify_init = 262, | |
1024 | aarch64_sys_fanotify_mark = 263, | |
1025 | aarch64_sys_name_to_handle_at = 264, | |
1026 | aarch64_sys_open_by_handle_at = 265, | |
1027 | aarch64_sys_clock_adjtime = 266, | |
1028 | aarch64_sys_syncfs = 267, | |
1029 | aarch64_sys_setns = 268, | |
1030 | aarch64_sys_sendmmsg = 269, | |
1031 | aarch64_sys_process_vm_readv = 270, | |
1032 | aarch64_sys_process_vm_writev = 271, | |
1033 | aarch64_sys_kcmp = 272, | |
1034 | aarch64_sys_finit_module = 273, | |
1035 | aarch64_sys_sched_setattr = 274, | |
1036 | aarch64_sys_sched_getattr = 275, | |
1037 | }; | |
1038 | ||
1039 | /* aarch64_canonicalize_syscall maps syscall ids from the native AArch64 | |
1040 | linux set of syscall ids into a canonical set of syscall ids used by | |
1041 | process record. */ | |
1042 | ||
1043 | static enum gdb_syscall | |
1044 | aarch64_canonicalize_syscall (enum aarch64_syscall syscall_number) | |
1045 | { | |
1046 | #define SYSCALL_MAP(SYSCALL) case aarch64_sys_##SYSCALL: \ | |
1047 | return gdb_sys_##SYSCALL | |
1048 | ||
c955ae73 YQ |
1049 | #define UNSUPPORTED_SYSCALL_MAP(SYSCALL) case aarch64_sys_##SYSCALL: \ |
1050 | return gdb_sys_no_syscall | |
1051 | ||
99afc88b OJ |
1052 | switch (syscall_number) |
1053 | { | |
1054 | SYSCALL_MAP (io_setup); | |
1055 | SYSCALL_MAP (io_destroy); | |
1056 | SYSCALL_MAP (io_submit); | |
1057 | SYSCALL_MAP (io_cancel); | |
1058 | SYSCALL_MAP (io_getevents); | |
1059 | ||
1060 | SYSCALL_MAP (setxattr); | |
1061 | SYSCALL_MAP (lsetxattr); | |
1062 | SYSCALL_MAP (fsetxattr); | |
1063 | SYSCALL_MAP (getxattr); | |
1064 | SYSCALL_MAP (lgetxattr); | |
1065 | SYSCALL_MAP (fgetxattr); | |
1066 | SYSCALL_MAP (listxattr); | |
1067 | SYSCALL_MAP (llistxattr); | |
1068 | SYSCALL_MAP (flistxattr); | |
1069 | SYSCALL_MAP (removexattr); | |
1070 | SYSCALL_MAP (lremovexattr); | |
1071 | SYSCALL_MAP (fremovexattr); | |
1072 | SYSCALL_MAP (getcwd); | |
1073 | SYSCALL_MAP (lookup_dcookie); | |
d5219069 YQ |
1074 | SYSCALL_MAP (eventfd2); |
1075 | SYSCALL_MAP (epoll_create1); | |
99afc88b OJ |
1076 | SYSCALL_MAP (epoll_ctl); |
1077 | SYSCALL_MAP (epoll_pwait); | |
1078 | SYSCALL_MAP (dup); | |
d5219069 | 1079 | SYSCALL_MAP (dup3); |
99afc88b | 1080 | SYSCALL_MAP (fcntl); |
d5219069 | 1081 | SYSCALL_MAP (inotify_init1); |
99afc88b OJ |
1082 | SYSCALL_MAP (inotify_add_watch); |
1083 | SYSCALL_MAP (inotify_rm_watch); | |
1084 | SYSCALL_MAP (ioctl); | |
1085 | SYSCALL_MAP (ioprio_set); | |
1086 | SYSCALL_MAP (ioprio_get); | |
1087 | SYSCALL_MAP (flock); | |
c955ae73 YQ |
1088 | SYSCALL_MAP (mknodat); |
1089 | SYSCALL_MAP (mkdirat); | |
1090 | SYSCALL_MAP (unlinkat); | |
1091 | SYSCALL_MAP (symlinkat); | |
1092 | SYSCALL_MAP (linkat); | |
1093 | SYSCALL_MAP (renameat); | |
1094 | UNSUPPORTED_SYSCALL_MAP (umount2); | |
99afc88b | 1095 | SYSCALL_MAP (mount); |
c955ae73 | 1096 | SYSCALL_MAP (pivot_root); |
99afc88b OJ |
1097 | SYSCALL_MAP (nfsservctl); |
1098 | SYSCALL_MAP (statfs); | |
1099 | SYSCALL_MAP (truncate); | |
1100 | SYSCALL_MAP (ftruncate); | |
d5219069 | 1101 | SYSCALL_MAP (fallocate); |
c955ae73 | 1102 | SYSCALL_MAP (faccessat); |
99afc88b OJ |
1103 | SYSCALL_MAP (fchdir); |
1104 | SYSCALL_MAP (chroot); | |
1105 | SYSCALL_MAP (fchmod); | |
1106 | SYSCALL_MAP (fchmodat); | |
1107 | SYSCALL_MAP (fchownat); | |
1108 | SYSCALL_MAP (fchown); | |
c955ae73 | 1109 | SYSCALL_MAP (openat); |
99afc88b OJ |
1110 | SYSCALL_MAP (close); |
1111 | SYSCALL_MAP (vhangup); | |
d5219069 | 1112 | SYSCALL_MAP (pipe2); |
99afc88b OJ |
1113 | SYSCALL_MAP (quotactl); |
1114 | SYSCALL_MAP (getdents64); | |
1115 | SYSCALL_MAP (lseek); | |
1116 | SYSCALL_MAP (read); | |
1117 | SYSCALL_MAP (write); | |
1118 | SYSCALL_MAP (readv); | |
1119 | SYSCALL_MAP (writev); | |
1120 | SYSCALL_MAP (pread64); | |
1121 | SYSCALL_MAP (pwrite64); | |
c955ae73 YQ |
1122 | UNSUPPORTED_SYSCALL_MAP (preadv); |
1123 | UNSUPPORTED_SYSCALL_MAP (pwritev); | |
99afc88b OJ |
1124 | SYSCALL_MAP (sendfile); |
1125 | SYSCALL_MAP (pselect6); | |
1126 | SYSCALL_MAP (ppoll); | |
c955ae73 | 1127 | UNSUPPORTED_SYSCALL_MAP (signalfd4); |
99afc88b OJ |
1128 | SYSCALL_MAP (vmsplice); |
1129 | SYSCALL_MAP (splice); | |
1130 | SYSCALL_MAP (tee); | |
c955ae73 YQ |
1131 | SYSCALL_MAP (readlinkat); |
1132 | SYSCALL_MAP (newfstatat); | |
1133 | ||
99afc88b OJ |
1134 | SYSCALL_MAP (fstat); |
1135 | SYSCALL_MAP (sync); | |
1136 | SYSCALL_MAP (fsync); | |
1137 | SYSCALL_MAP (fdatasync); | |
1138 | SYSCALL_MAP (sync_file_range); | |
c955ae73 YQ |
1139 | UNSUPPORTED_SYSCALL_MAP (timerfd_create); |
1140 | UNSUPPORTED_SYSCALL_MAP (timerfd_settime); | |
1141 | UNSUPPORTED_SYSCALL_MAP (timerfd_gettime); | |
1142 | UNSUPPORTED_SYSCALL_MAP (utimensat); | |
99afc88b OJ |
1143 | SYSCALL_MAP (acct); |
1144 | SYSCALL_MAP (capget); | |
1145 | SYSCALL_MAP (capset); | |
1146 | SYSCALL_MAP (personality); | |
1147 | SYSCALL_MAP (exit); | |
1148 | SYSCALL_MAP (exit_group); | |
1149 | SYSCALL_MAP (waitid); | |
1150 | SYSCALL_MAP (set_tid_address); | |
1151 | SYSCALL_MAP (unshare); | |
1152 | SYSCALL_MAP (futex); | |
1153 | SYSCALL_MAP (set_robust_list); | |
1154 | SYSCALL_MAP (get_robust_list); | |
1155 | SYSCALL_MAP (nanosleep); | |
1156 | ||
1157 | SYSCALL_MAP (getitimer); | |
1158 | SYSCALL_MAP (setitimer); | |
1159 | SYSCALL_MAP (kexec_load); | |
1160 | SYSCALL_MAP (init_module); | |
1161 | SYSCALL_MAP (delete_module); | |
1162 | SYSCALL_MAP (timer_create); | |
1163 | SYSCALL_MAP (timer_settime); | |
1164 | SYSCALL_MAP (timer_gettime); | |
1165 | SYSCALL_MAP (timer_getoverrun); | |
1166 | SYSCALL_MAP (timer_delete); | |
1167 | SYSCALL_MAP (clock_settime); | |
1168 | SYSCALL_MAP (clock_gettime); | |
1169 | SYSCALL_MAP (clock_getres); | |
1170 | SYSCALL_MAP (clock_nanosleep); | |
1171 | SYSCALL_MAP (syslog); | |
1172 | SYSCALL_MAP (ptrace); | |
1173 | SYSCALL_MAP (sched_setparam); | |
1174 | SYSCALL_MAP (sched_setscheduler); | |
1175 | SYSCALL_MAP (sched_getscheduler); | |
1176 | SYSCALL_MAP (sched_getparam); | |
1177 | SYSCALL_MAP (sched_setaffinity); | |
1178 | SYSCALL_MAP (sched_getaffinity); | |
1179 | SYSCALL_MAP (sched_yield); | |
1180 | SYSCALL_MAP (sched_get_priority_max); | |
1181 | SYSCALL_MAP (sched_get_priority_min); | |
1182 | SYSCALL_MAP (sched_rr_get_interval); | |
1183 | SYSCALL_MAP (kill); | |
1184 | SYSCALL_MAP (tkill); | |
1185 | SYSCALL_MAP (tgkill); | |
1186 | SYSCALL_MAP (sigaltstack); | |
1187 | SYSCALL_MAP (rt_sigsuspend); | |
1188 | SYSCALL_MAP (rt_sigaction); | |
1189 | SYSCALL_MAP (rt_sigprocmask); | |
1190 | SYSCALL_MAP (rt_sigpending); | |
1191 | SYSCALL_MAP (rt_sigtimedwait); | |
1192 | SYSCALL_MAP (rt_sigqueueinfo); | |
1193 | SYSCALL_MAP (rt_sigreturn); | |
1194 | SYSCALL_MAP (setpriority); | |
1195 | SYSCALL_MAP (getpriority); | |
1196 | SYSCALL_MAP (reboot); | |
1197 | SYSCALL_MAP (setregid); | |
1198 | SYSCALL_MAP (setgid); | |
1199 | SYSCALL_MAP (setreuid); | |
1200 | SYSCALL_MAP (setuid); | |
1201 | SYSCALL_MAP (setresuid); | |
1202 | SYSCALL_MAP (getresuid); | |
1203 | SYSCALL_MAP (setresgid); | |
1204 | SYSCALL_MAP (getresgid); | |
1205 | SYSCALL_MAP (setfsuid); | |
1206 | SYSCALL_MAP (setfsgid); | |
1207 | SYSCALL_MAP (times); | |
1208 | SYSCALL_MAP (setpgid); | |
1209 | SYSCALL_MAP (getpgid); | |
1210 | SYSCALL_MAP (getsid); | |
1211 | SYSCALL_MAP (setsid); | |
1212 | SYSCALL_MAP (getgroups); | |
1213 | SYSCALL_MAP (setgroups); | |
1214 | SYSCALL_MAP (uname); | |
1215 | SYSCALL_MAP (sethostname); | |
1216 | SYSCALL_MAP (setdomainname); | |
1217 | SYSCALL_MAP (getrlimit); | |
1218 | SYSCALL_MAP (setrlimit); | |
1219 | SYSCALL_MAP (getrusage); | |
1220 | SYSCALL_MAP (umask); | |
1221 | SYSCALL_MAP (prctl); | |
c955ae73 | 1222 | SYSCALL_MAP (getcpu); |
99afc88b OJ |
1223 | SYSCALL_MAP (gettimeofday); |
1224 | SYSCALL_MAP (settimeofday); | |
1225 | SYSCALL_MAP (adjtimex); | |
1226 | SYSCALL_MAP (getpid); | |
1227 | SYSCALL_MAP (getppid); | |
1228 | SYSCALL_MAP (getuid); | |
1229 | SYSCALL_MAP (geteuid); | |
1230 | SYSCALL_MAP (getgid); | |
1231 | SYSCALL_MAP (getegid); | |
1232 | SYSCALL_MAP (gettid); | |
1233 | SYSCALL_MAP (sysinfo); | |
1234 | SYSCALL_MAP (mq_open); | |
1235 | SYSCALL_MAP (mq_unlink); | |
1236 | SYSCALL_MAP (mq_timedsend); | |
1237 | SYSCALL_MAP (mq_timedreceive); | |
1238 | SYSCALL_MAP (mq_notify); | |
1239 | SYSCALL_MAP (mq_getsetattr); | |
1240 | SYSCALL_MAP (msgget); | |
1241 | SYSCALL_MAP (msgctl); | |
1242 | SYSCALL_MAP (msgrcv); | |
1243 | SYSCALL_MAP (msgsnd); | |
1244 | SYSCALL_MAP (semget); | |
1245 | SYSCALL_MAP (semctl); | |
1246 | SYSCALL_MAP (semtimedop); | |
1247 | SYSCALL_MAP (semop); | |
1248 | SYSCALL_MAP (shmget); | |
1249 | SYSCALL_MAP (shmctl); | |
1250 | SYSCALL_MAP (shmat); | |
1251 | SYSCALL_MAP (shmdt); | |
1252 | SYSCALL_MAP (socket); | |
1253 | SYSCALL_MAP (socketpair); | |
1254 | SYSCALL_MAP (bind); | |
1255 | SYSCALL_MAP (listen); | |
1256 | SYSCALL_MAP (accept); | |
1257 | SYSCALL_MAP (connect); | |
1258 | SYSCALL_MAP (getsockname); | |
1259 | SYSCALL_MAP (getpeername); | |
1260 | SYSCALL_MAP (sendto); | |
1261 | SYSCALL_MAP (recvfrom); | |
1262 | SYSCALL_MAP (setsockopt); | |
1263 | SYSCALL_MAP (getsockopt); | |
1264 | SYSCALL_MAP (shutdown); | |
1265 | SYSCALL_MAP (sendmsg); | |
1266 | SYSCALL_MAP (recvmsg); | |
1267 | SYSCALL_MAP (readahead); | |
1268 | SYSCALL_MAP (brk); | |
1269 | SYSCALL_MAP (munmap); | |
1270 | SYSCALL_MAP (mremap); | |
1271 | SYSCALL_MAP (add_key); | |
1272 | SYSCALL_MAP (request_key); | |
1273 | SYSCALL_MAP (keyctl); | |
1274 | SYSCALL_MAP (clone); | |
1275 | SYSCALL_MAP (execve); | |
1276 | ||
1277 | case aarch64_sys_mmap: | |
1278 | return gdb_sys_mmap2; | |
1279 | ||
1280 | SYSCALL_MAP (fadvise64); | |
1281 | SYSCALL_MAP (swapon); | |
1282 | SYSCALL_MAP (swapoff); | |
1283 | SYSCALL_MAP (mprotect); | |
1284 | SYSCALL_MAP (msync); | |
1285 | SYSCALL_MAP (mlock); | |
1286 | SYSCALL_MAP (munlock); | |
1287 | SYSCALL_MAP (mlockall); | |
1288 | SYSCALL_MAP (munlockall); | |
1289 | SYSCALL_MAP (mincore); | |
1290 | SYSCALL_MAP (madvise); | |
1291 | SYSCALL_MAP (remap_file_pages); | |
1292 | SYSCALL_MAP (mbind); | |
1293 | SYSCALL_MAP (get_mempolicy); | |
1294 | SYSCALL_MAP (set_mempolicy); | |
1295 | SYSCALL_MAP (migrate_pages); | |
1296 | SYSCALL_MAP (move_pages); | |
c955ae73 YQ |
1297 | UNSUPPORTED_SYSCALL_MAP (rt_tgsigqueueinfo); |
1298 | UNSUPPORTED_SYSCALL_MAP (perf_event_open); | |
1299 | UNSUPPORTED_SYSCALL_MAP (accept4); | |
1300 | UNSUPPORTED_SYSCALL_MAP (recvmmsg); | |
1301 | ||
1302 | SYSCALL_MAP (wait4); | |
1303 | ||
1304 | UNSUPPORTED_SYSCALL_MAP (prlimit64); | |
1305 | UNSUPPORTED_SYSCALL_MAP (fanotify_init); | |
1306 | UNSUPPORTED_SYSCALL_MAP (fanotify_mark); | |
1307 | UNSUPPORTED_SYSCALL_MAP (name_to_handle_at); | |
1308 | UNSUPPORTED_SYSCALL_MAP (open_by_handle_at); | |
1309 | UNSUPPORTED_SYSCALL_MAP (clock_adjtime); | |
1310 | UNSUPPORTED_SYSCALL_MAP (syncfs); | |
1311 | UNSUPPORTED_SYSCALL_MAP (setns); | |
1312 | UNSUPPORTED_SYSCALL_MAP (sendmmsg); | |
1313 | UNSUPPORTED_SYSCALL_MAP (process_vm_readv); | |
1314 | UNSUPPORTED_SYSCALL_MAP (process_vm_writev); | |
1315 | UNSUPPORTED_SYSCALL_MAP (kcmp); | |
1316 | UNSUPPORTED_SYSCALL_MAP (finit_module); | |
1317 | UNSUPPORTED_SYSCALL_MAP (sched_setattr); | |
1318 | UNSUPPORTED_SYSCALL_MAP (sched_getattr); | |
99afc88b | 1319 | default: |
cb65d272 | 1320 | return gdb_sys_no_syscall; |
99afc88b OJ |
1321 | } |
1322 | } | |
1323 | ||
1324 | /* Record all registers but PC register for process-record. */ | |
1325 | ||
1326 | static int | |
1327 | aarch64_all_but_pc_registers_record (struct regcache *regcache) | |
1328 | { | |
1329 | int i; | |
1330 | ||
1331 | for (i = AARCH64_X0_REGNUM; i < AARCH64_PC_REGNUM; i++) | |
1332 | if (record_full_arch_list_add_reg (regcache, i)) | |
1333 | return -1; | |
1334 | ||
1335 | if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM)) | |
1336 | return -1; | |
1337 | ||
1338 | return 0; | |
1339 | } | |
1340 | ||
1341 | /* Handler for aarch64 system call instruction recording. */ | |
1342 | ||
1343 | static int | |
1344 | aarch64_linux_syscall_record (struct regcache *regcache, | |
1345 | unsigned long svc_number) | |
1346 | { | |
1347 | int ret = 0; | |
1348 | enum gdb_syscall syscall_gdb; | |
1349 | ||
1f713e48 SM |
1350 | syscall_gdb = |
1351 | aarch64_canonicalize_syscall ((enum aarch64_syscall) svc_number); | |
99afc88b OJ |
1352 | |
1353 | if (syscall_gdb < 0) | |
1354 | { | |
1355 | printf_unfiltered (_("Process record and replay target doesn't " | |
1356 | "support syscall number %s\n"), | |
1357 | plongest (svc_number)); | |
1358 | return -1; | |
1359 | } | |
1360 | ||
1361 | if (syscall_gdb == gdb_sys_sigreturn | |
1362 | || syscall_gdb == gdb_sys_rt_sigreturn) | |
1363 | { | |
1364 | if (aarch64_all_but_pc_registers_record (regcache)) | |
1365 | return -1; | |
1366 | return 0; | |
1367 | } | |
1368 | ||
1369 | ret = record_linux_system_call (syscall_gdb, regcache, | |
1370 | &aarch64_linux_record_tdep); | |
1371 | if (ret != 0) | |
1372 | return ret; | |
1373 | ||
1374 | /* Record the return value of the system call. */ | |
1375 | if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM)) | |
1376 | return -1; | |
1377 | /* Record LR. */ | |
1378 | if (record_full_arch_list_add_reg (regcache, AARCH64_LR_REGNUM)) | |
1379 | return -1; | |
1380 | /* Record CPSR. */ | |
1381 | if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM)) | |
1382 | return -1; | |
1383 | ||
1384 | return 0; | |
1385 | } | |
1386 | ||
7045b1ca YQ |
1387 | /* Implement the "gcc_target_options" gdbarch method. */ |
1388 | ||
1389 | static char * | |
1390 | aarch64_linux_gcc_target_options (struct gdbarch *gdbarch) | |
1391 | { | |
1392 | /* GCC doesn't know "-m64". */ | |
1393 | return NULL; | |
1394 | } | |
1395 | ||
1ae3db19 MS |
1396 | static void |
1397 | aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) | |
1398 | { | |
08248ca9 SDJ |
1399 | static const char *const stap_integer_prefixes[] = { "#", "", NULL }; |
1400 | static const char *const stap_register_prefixes[] = { "", NULL }; | |
1401 | static const char *const stap_register_indirection_prefixes[] = { "[", | |
1402 | NULL }; | |
1403 | static const char *const stap_register_indirection_suffixes[] = { "]", | |
1404 | NULL }; | |
1ae3db19 MS |
1405 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
1406 | ||
1407 | tdep->lowest_pc = 0x8000; | |
1408 | ||
05feb193 WN |
1409 | linux_init_abi (info, gdbarch); |
1410 | ||
1ae3db19 MS |
1411 | set_solib_svr4_fetch_link_map_offsets (gdbarch, |
1412 | svr4_lp64_fetch_link_map_offsets); | |
1413 | ||
45e25a36 MS |
1414 | /* Enable TLS support. */ |
1415 | set_gdbarch_fetch_tls_load_module_address (gdbarch, | |
1416 | svr4_fetch_objfile_link_map); | |
1417 | ||
1ae3db19 MS |
1418 | /* Shared library handling. */ |
1419 | set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target); | |
6dcaef99 | 1420 | set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver); |
1ae3db19 | 1421 | |
1ae3db19 MS |
1422 | tramp_frame_prepend_unwinder (gdbarch, &aarch64_linux_rt_sigframe); |
1423 | ||
1424 | /* Enable longjmp. */ | |
1425 | tdep->jb_pc = 11; | |
1426 | ||
4108500a AA |
1427 | set_gdbarch_iterate_over_regset_sections |
1428 | (gdbarch, aarch64_linux_iterate_over_regset_sections); | |
cd3af38d JW |
1429 | set_gdbarch_core_read_description |
1430 | (gdbarch, aarch64_linux_core_read_description); | |
08248ca9 SDJ |
1431 | |
1432 | /* SystemTap related. */ | |
1433 | set_gdbarch_stap_integer_prefixes (gdbarch, stap_integer_prefixes); | |
1434 | set_gdbarch_stap_register_prefixes (gdbarch, stap_register_prefixes); | |
1435 | set_gdbarch_stap_register_indirection_prefixes (gdbarch, | |
1436 | stap_register_indirection_prefixes); | |
1437 | set_gdbarch_stap_register_indirection_suffixes (gdbarch, | |
1438 | stap_register_indirection_suffixes); | |
1439 | set_gdbarch_stap_is_single_operand (gdbarch, aarch64_stap_is_single_operand); | |
1440 | set_gdbarch_stap_parse_special_token (gdbarch, | |
1441 | aarch64_stap_parse_special_token); | |
f68f11b7 | 1442 | |
99afc88b OJ |
1443 | /* Reversible debugging, process record. */ |
1444 | set_gdbarch_process_record (gdbarch, aarch64_process_record); | |
1445 | /* Syscall record. */ | |
1446 | tdep->aarch64_syscall_record = aarch64_linux_syscall_record; | |
1447 | ||
8727de56 OJ |
1448 | /* The top byte of a user space address known as the "tag", |
1449 | is ignored by the kernel and can be regarded as additional | |
1450 | data associated with the address. */ | |
1451 | set_gdbarch_significant_addr_bit (gdbarch, 56); | |
1452 | ||
99afc88b OJ |
1453 | /* Initialize the aarch64_linux_record_tdep. */ |
1454 | /* These values are the size of the type that will be used in a system | |
1455 | call. They are obtained from Linux Kernel source. */ | |
1456 | aarch64_linux_record_tdep.size_pointer | |
1457 | = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT; | |
1458 | aarch64_linux_record_tdep.size__old_kernel_stat = 32; | |
1459 | aarch64_linux_record_tdep.size_tms = 32; | |
1460 | aarch64_linux_record_tdep.size_loff_t = 8; | |
1461 | aarch64_linux_record_tdep.size_flock = 32; | |
1462 | aarch64_linux_record_tdep.size_oldold_utsname = 45; | |
1463 | aarch64_linux_record_tdep.size_ustat = 32; | |
7571f7f2 MK |
1464 | aarch64_linux_record_tdep.size_old_sigaction = 32; |
1465 | aarch64_linux_record_tdep.size_old_sigset_t = 8; | |
99afc88b OJ |
1466 | aarch64_linux_record_tdep.size_rlimit = 16; |
1467 | aarch64_linux_record_tdep.size_rusage = 144; | |
1468 | aarch64_linux_record_tdep.size_timeval = 16; | |
1469 | aarch64_linux_record_tdep.size_timezone = 8; | |
1470 | aarch64_linux_record_tdep.size_old_gid_t = 2; | |
1471 | aarch64_linux_record_tdep.size_old_uid_t = 2; | |
1472 | aarch64_linux_record_tdep.size_fd_set = 128; | |
72aded86 | 1473 | aarch64_linux_record_tdep.size_old_dirent = 280; |
99afc88b OJ |
1474 | aarch64_linux_record_tdep.size_statfs = 120; |
1475 | aarch64_linux_record_tdep.size_statfs64 = 120; | |
1476 | aarch64_linux_record_tdep.size_sockaddr = 16; | |
1477 | aarch64_linux_record_tdep.size_int | |
1478 | = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT; | |
1479 | aarch64_linux_record_tdep.size_long | |
1480 | = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT; | |
1481 | aarch64_linux_record_tdep.size_ulong | |
1482 | = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT; | |
1483 | aarch64_linux_record_tdep.size_msghdr = 56; | |
1484 | aarch64_linux_record_tdep.size_itimerval = 32; | |
1485 | aarch64_linux_record_tdep.size_stat = 144; | |
1486 | aarch64_linux_record_tdep.size_old_utsname = 325; | |
1487 | aarch64_linux_record_tdep.size_sysinfo = 112; | |
1488 | aarch64_linux_record_tdep.size_msqid_ds = 120; | |
1489 | aarch64_linux_record_tdep.size_shmid_ds = 112; | |
1490 | aarch64_linux_record_tdep.size_new_utsname = 390; | |
1491 | aarch64_linux_record_tdep.size_timex = 208; | |
1492 | aarch64_linux_record_tdep.size_mem_dqinfo = 24; | |
1493 | aarch64_linux_record_tdep.size_if_dqblk = 72; | |
1494 | aarch64_linux_record_tdep.size_fs_quota_stat = 80; | |
1495 | aarch64_linux_record_tdep.size_timespec = 16; | |
1496 | aarch64_linux_record_tdep.size_pollfd = 8; | |
1497 | aarch64_linux_record_tdep.size_NFS_FHSIZE = 32; | |
1498 | aarch64_linux_record_tdep.size_knfsd_fh = 132; | |
1499 | aarch64_linux_record_tdep.size_TASK_COMM_LEN = 16; | |
7571f7f2 MK |
1500 | aarch64_linux_record_tdep.size_sigaction = 32; |
1501 | aarch64_linux_record_tdep.size_sigset_t = 8; | |
99afc88b OJ |
1502 | aarch64_linux_record_tdep.size_siginfo_t = 128; |
1503 | aarch64_linux_record_tdep.size_cap_user_data_t = 8; | |
1504 | aarch64_linux_record_tdep.size_stack_t = 24; | |
1505 | aarch64_linux_record_tdep.size_off_t = 8; | |
1506 | aarch64_linux_record_tdep.size_stat64 = 144; | |
1507 | aarch64_linux_record_tdep.size_gid_t = 4; | |
1508 | aarch64_linux_record_tdep.size_uid_t = 4; | |
1509 | aarch64_linux_record_tdep.size_PAGE_SIZE = 4096; | |
1510 | aarch64_linux_record_tdep.size_flock64 = 32; | |
1511 | aarch64_linux_record_tdep.size_user_desc = 16; | |
1512 | aarch64_linux_record_tdep.size_io_event = 32; | |
1513 | aarch64_linux_record_tdep.size_iocb = 64; | |
1514 | aarch64_linux_record_tdep.size_epoll_event = 12; | |
1515 | aarch64_linux_record_tdep.size_itimerspec = 32; | |
1516 | aarch64_linux_record_tdep.size_mq_attr = 64; | |
d9b19c49 | 1517 | aarch64_linux_record_tdep.size_termios = 36; |
99afc88b OJ |
1518 | aarch64_linux_record_tdep.size_termios2 = 44; |
1519 | aarch64_linux_record_tdep.size_pid_t = 4; | |
1520 | aarch64_linux_record_tdep.size_winsize = 8; | |
1521 | aarch64_linux_record_tdep.size_serial_struct = 72; | |
1522 | aarch64_linux_record_tdep.size_serial_icounter_struct = 80; | |
1523 | aarch64_linux_record_tdep.size_hayes_esp_config = 12; | |
1524 | aarch64_linux_record_tdep.size_size_t = 8; | |
1525 | aarch64_linux_record_tdep.size_iovec = 16; | |
b80d067f | 1526 | aarch64_linux_record_tdep.size_time_t = 8; |
99afc88b OJ |
1527 | |
1528 | /* These values are the second argument of system call "sys_ioctl". | |
1529 | They are obtained from Linux Kernel source. */ | |
1530 | aarch64_linux_record_tdep.ioctl_TCGETS = 0x5401; | |
1531 | aarch64_linux_record_tdep.ioctl_TCSETS = 0x5402; | |
1532 | aarch64_linux_record_tdep.ioctl_TCSETSW = 0x5403; | |
1533 | aarch64_linux_record_tdep.ioctl_TCSETSF = 0x5404; | |
1534 | aarch64_linux_record_tdep.ioctl_TCGETA = 0x5405; | |
1535 | aarch64_linux_record_tdep.ioctl_TCSETA = 0x5406; | |
1536 | aarch64_linux_record_tdep.ioctl_TCSETAW = 0x5407; | |
1537 | aarch64_linux_record_tdep.ioctl_TCSETAF = 0x5408; | |
1538 | aarch64_linux_record_tdep.ioctl_TCSBRK = 0x5409; | |
1539 | aarch64_linux_record_tdep.ioctl_TCXONC = 0x540a; | |
1540 | aarch64_linux_record_tdep.ioctl_TCFLSH = 0x540b; | |
1541 | aarch64_linux_record_tdep.ioctl_TIOCEXCL = 0x540c; | |
1542 | aarch64_linux_record_tdep.ioctl_TIOCNXCL = 0x540d; | |
1543 | aarch64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540e; | |
1544 | aarch64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540f; | |
1545 | aarch64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410; | |
1546 | aarch64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411; | |
1547 | aarch64_linux_record_tdep.ioctl_TIOCSTI = 0x5412; | |
1548 | aarch64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413; | |
1549 | aarch64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414; | |
1550 | aarch64_linux_record_tdep.ioctl_TIOCMGET = 0x5415; | |
1551 | aarch64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416; | |
1552 | aarch64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417; | |
1553 | aarch64_linux_record_tdep.ioctl_TIOCMSET = 0x5418; | |
1554 | aarch64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419; | |
1555 | aarch64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541a; | |
1556 | aarch64_linux_record_tdep.ioctl_FIONREAD = 0x541b; | |
1557 | aarch64_linux_record_tdep.ioctl_TIOCINQ = 0x541b; | |
1558 | aarch64_linux_record_tdep.ioctl_TIOCLINUX = 0x541c; | |
1559 | aarch64_linux_record_tdep.ioctl_TIOCCONS = 0x541d; | |
1560 | aarch64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541e; | |
1561 | aarch64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541f; | |
1562 | aarch64_linux_record_tdep.ioctl_TIOCPKT = 0x5420; | |
1563 | aarch64_linux_record_tdep.ioctl_FIONBIO = 0x5421; | |
1564 | aarch64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422; | |
1565 | aarch64_linux_record_tdep.ioctl_TIOCSETD = 0x5423; | |
1566 | aarch64_linux_record_tdep.ioctl_TIOCGETD = 0x5424; | |
1567 | aarch64_linux_record_tdep.ioctl_TCSBRKP = 0x5425; | |
1568 | aarch64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426; | |
1569 | aarch64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427; | |
1570 | aarch64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428; | |
1571 | aarch64_linux_record_tdep.ioctl_TIOCGSID = 0x5429; | |
1572 | aarch64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a; | |
1573 | aarch64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b; | |
1574 | aarch64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c; | |
1575 | aarch64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d; | |
1576 | aarch64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430; | |
1577 | aarch64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431; | |
1578 | aarch64_linux_record_tdep.ioctl_FIONCLEX = 0x5450; | |
1579 | aarch64_linux_record_tdep.ioctl_FIOCLEX = 0x5451; | |
1580 | aarch64_linux_record_tdep.ioctl_FIOASYNC = 0x5452; | |
1581 | aarch64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453; | |
1582 | aarch64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454; | |
1583 | aarch64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455; | |
1584 | aarch64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456; | |
1585 | aarch64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457; | |
1586 | aarch64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458; | |
1587 | aarch64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459; | |
1588 | aarch64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545a; | |
1589 | aarch64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545b; | |
1590 | aarch64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545c; | |
1591 | aarch64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545d; | |
1592 | aarch64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545e; | |
1593 | aarch64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545f; | |
1594 | aarch64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460; | |
1595 | ||
1596 | /* These values are the second argument of system call "sys_fcntl" | |
1597 | and "sys_fcntl64". They are obtained from Linux Kernel source. */ | |
1598 | aarch64_linux_record_tdep.fcntl_F_GETLK = 5; | |
1599 | aarch64_linux_record_tdep.fcntl_F_GETLK64 = 12; | |
1600 | aarch64_linux_record_tdep.fcntl_F_SETLK64 = 13; | |
1601 | aarch64_linux_record_tdep.fcntl_F_SETLKW64 = 14; | |
1602 | ||
1603 | /* The AArch64 syscall calling convention: reg x0-x6 for arguments, | |
1604 | reg x8 for syscall number and return value in reg x0. */ | |
1605 | aarch64_linux_record_tdep.arg1 = AARCH64_X0_REGNUM + 0; | |
1606 | aarch64_linux_record_tdep.arg2 = AARCH64_X0_REGNUM + 1; | |
1607 | aarch64_linux_record_tdep.arg3 = AARCH64_X0_REGNUM + 2; | |
1608 | aarch64_linux_record_tdep.arg4 = AARCH64_X0_REGNUM + 3; | |
1609 | aarch64_linux_record_tdep.arg5 = AARCH64_X0_REGNUM + 4; | |
1610 | aarch64_linux_record_tdep.arg6 = AARCH64_X0_REGNUM + 5; | |
1611 | aarch64_linux_record_tdep.arg7 = AARCH64_X0_REGNUM + 6; | |
1612 | ||
f68f11b7 YQ |
1613 | /* `catch syscall' */ |
1614 | set_xml_syscall_file_name (gdbarch, "syscalls/aarch64-linux.xml"); | |
1615 | set_gdbarch_get_syscall_number (gdbarch, aarch64_linux_get_syscall_number); | |
b6542f81 YQ |
1616 | |
1617 | /* Displaced stepping. */ | |
1618 | set_gdbarch_max_insn_length (gdbarch, 4 * DISPLACED_MODIFIED_INSNS); | |
1619 | set_gdbarch_displaced_step_copy_insn (gdbarch, | |
1620 | aarch64_displaced_step_copy_insn); | |
1621 | set_gdbarch_displaced_step_fixup (gdbarch, aarch64_displaced_step_fixup); | |
b6542f81 YQ |
1622 | set_gdbarch_displaced_step_location (gdbarch, linux_displaced_step_location); |
1623 | set_gdbarch_displaced_step_hw_singlestep (gdbarch, | |
1624 | aarch64_displaced_step_hw_singlestep); | |
7045b1ca YQ |
1625 | |
1626 | set_gdbarch_gcc_target_options (gdbarch, aarch64_linux_gcc_target_options); | |
1ae3db19 MS |
1627 | } |
1628 | ||
1ae3db19 MS |
1629 | void |
1630 | _initialize_aarch64_linux_tdep (void) | |
1631 | { | |
1632 | gdbarch_register_osabi (bfd_arch_aarch64, 0, GDB_OSABI_LINUX, | |
1633 | aarch64_linux_init_abi); | |
1634 | } |