| 1 | /* Target-dependent code for GNU/Linux x86-64. |
| 2 | |
| 3 | Copyright (C) 2001, 2003-2012 Free Software Foundation, Inc. |
| 4 | Contributed by Jiri Smid, SuSE Labs. |
| 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 | #include "arch-utils.h" |
| 23 | #include "frame.h" |
| 24 | #include "gdbcore.h" |
| 25 | #include "regcache.h" |
| 26 | #include "osabi.h" |
| 27 | #include "symtab.h" |
| 28 | #include "gdbtypes.h" |
| 29 | #include "reggroups.h" |
| 30 | #include "regset.h" |
| 31 | #include "amd64-linux-tdep.h" |
| 32 | #include "i386-linux-tdep.h" |
| 33 | #include "linux-tdep.h" |
| 34 | #include "i386-xstate.h" |
| 35 | |
| 36 | #include "gdb_string.h" |
| 37 | |
| 38 | #include "amd64-tdep.h" |
| 39 | #include "solib-svr4.h" |
| 40 | #include "xml-syscall.h" |
| 41 | |
| 42 | #include "features/i386/amd64-linux.c" |
| 43 | #include "features/i386/amd64-avx-linux.c" |
| 44 | |
| 45 | /* The syscall's XML filename for i386. */ |
| 46 | #define XML_SYSCALL_FILENAME_AMD64 "syscalls/amd64-linux.xml" |
| 47 | |
| 48 | #include "record.h" |
| 49 | #include "linux-record.h" |
| 50 | |
| 51 | /* Supported register note sections. */ |
| 52 | static struct core_regset_section amd64_linux_regset_sections[] = |
| 53 | { |
| 54 | { ".reg", 27 * 8, "general-purpose" }, |
| 55 | { ".reg2", 512, "floating-point" }, |
| 56 | { ".reg-xstate", I386_XSTATE_MAX_SIZE, "XSAVE extended state" }, |
| 57 | { NULL, 0 } |
| 58 | }; |
| 59 | |
| 60 | /* Mapping between the general-purpose registers in `struct user' |
| 61 | format and GDB's register cache layout. */ |
| 62 | |
| 63 | /* From <sys/reg.h>. */ |
| 64 | int amd64_linux_gregset_reg_offset[] = |
| 65 | { |
| 66 | 10 * 8, /* %rax */ |
| 67 | 5 * 8, /* %rbx */ |
| 68 | 11 * 8, /* %rcx */ |
| 69 | 12 * 8, /* %rdx */ |
| 70 | 13 * 8, /* %rsi */ |
| 71 | 14 * 8, /* %rdi */ |
| 72 | 4 * 8, /* %rbp */ |
| 73 | 19 * 8, /* %rsp */ |
| 74 | 9 * 8, /* %r8 ... */ |
| 75 | 8 * 8, |
| 76 | 7 * 8, |
| 77 | 6 * 8, |
| 78 | 3 * 8, |
| 79 | 2 * 8, |
| 80 | 1 * 8, |
| 81 | 0 * 8, /* ... %r15 */ |
| 82 | 16 * 8, /* %rip */ |
| 83 | 18 * 8, /* %eflags */ |
| 84 | 17 * 8, /* %cs */ |
| 85 | 20 * 8, /* %ss */ |
| 86 | 23 * 8, /* %ds */ |
| 87 | 24 * 8, /* %es */ |
| 88 | 25 * 8, /* %fs */ |
| 89 | 26 * 8, /* %gs */ |
| 90 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 91 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 92 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 93 | -1, -1, -1, -1, -1, -1, -1, -1, -1, |
| 94 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 95 | -1, -1, -1, -1, -1, -1, -1, -1, |
| 96 | 15 * 8 /* "orig_rax" */ |
| 97 | }; |
| 98 | \f |
| 99 | |
| 100 | /* Support for signal handlers. */ |
| 101 | |
| 102 | #define LINUX_SIGTRAMP_INSN0 0x48 /* mov $NNNNNNNN, %rax */ |
| 103 | #define LINUX_SIGTRAMP_OFFSET0 0 |
| 104 | #define LINUX_SIGTRAMP_INSN1 0x0f /* syscall */ |
| 105 | #define LINUX_SIGTRAMP_OFFSET1 7 |
| 106 | |
| 107 | static const gdb_byte linux_sigtramp_code[] = |
| 108 | { |
| 109 | /* mov $__NR_rt_sigreturn, %rax */ |
| 110 | LINUX_SIGTRAMP_INSN0, 0xc7, 0xc0, 0x0f, 0x00, 0x00, 0x00, |
| 111 | /* syscall */ |
| 112 | LINUX_SIGTRAMP_INSN1, 0x05 |
| 113 | }; |
| 114 | |
| 115 | #define LINUX_SIGTRAMP_LEN (sizeof linux_sigtramp_code) |
| 116 | |
| 117 | /* If PC is in a sigtramp routine, return the address of the start of |
| 118 | the routine. Otherwise, return 0. */ |
| 119 | |
| 120 | static CORE_ADDR |
| 121 | amd64_linux_sigtramp_start (struct frame_info *this_frame) |
| 122 | { |
| 123 | CORE_ADDR pc = get_frame_pc (this_frame); |
| 124 | gdb_byte buf[LINUX_SIGTRAMP_LEN]; |
| 125 | |
| 126 | /* We only recognize a signal trampoline if PC is at the start of |
| 127 | one of the two instructions. We optimize for finding the PC at |
| 128 | the start, as will be the case when the trampoline is not the |
| 129 | first frame on the stack. We assume that in the case where the |
| 130 | PC is not at the start of the instruction sequence, there will be |
| 131 | a few trailing readable bytes on the stack. */ |
| 132 | |
| 133 | if (!safe_frame_unwind_memory (this_frame, pc, buf, sizeof buf)) |
| 134 | return 0; |
| 135 | |
| 136 | if (buf[0] != LINUX_SIGTRAMP_INSN0) |
| 137 | { |
| 138 | if (buf[0] != LINUX_SIGTRAMP_INSN1) |
| 139 | return 0; |
| 140 | |
| 141 | pc -= LINUX_SIGTRAMP_OFFSET1; |
| 142 | if (!safe_frame_unwind_memory (this_frame, pc, buf, sizeof buf)) |
| 143 | return 0; |
| 144 | } |
| 145 | |
| 146 | if (memcmp (buf, linux_sigtramp_code, LINUX_SIGTRAMP_LEN) != 0) |
| 147 | return 0; |
| 148 | |
| 149 | return pc; |
| 150 | } |
| 151 | |
| 152 | /* Return whether THIS_FRAME corresponds to a GNU/Linux sigtramp |
| 153 | routine. */ |
| 154 | |
| 155 | static int |
| 156 | amd64_linux_sigtramp_p (struct frame_info *this_frame) |
| 157 | { |
| 158 | CORE_ADDR pc = get_frame_pc (this_frame); |
| 159 | char *name; |
| 160 | |
| 161 | find_pc_partial_function (pc, &name, NULL, NULL); |
| 162 | |
| 163 | /* If we have NAME, we can optimize the search. The trampoline is |
| 164 | named __restore_rt. However, it isn't dynamically exported from |
| 165 | the shared C library, so the trampoline may appear to be part of |
| 166 | the preceding function. This should always be sigaction, |
| 167 | __sigaction, or __libc_sigaction (all aliases to the same |
| 168 | function). */ |
| 169 | if (name == NULL || strstr (name, "sigaction") != NULL) |
| 170 | return (amd64_linux_sigtramp_start (this_frame) != 0); |
| 171 | |
| 172 | return (strcmp ("__restore_rt", name) == 0); |
| 173 | } |
| 174 | |
| 175 | /* Offset to struct sigcontext in ucontext, from <asm/ucontext.h>. */ |
| 176 | #define AMD64_LINUX_UCONTEXT_SIGCONTEXT_OFFSET 40 |
| 177 | |
| 178 | /* Assuming THIS_FRAME is a GNU/Linux sigtramp routine, return the |
| 179 | address of the associated sigcontext structure. */ |
| 180 | |
| 181 | static CORE_ADDR |
| 182 | amd64_linux_sigcontext_addr (struct frame_info *this_frame) |
| 183 | { |
| 184 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
| 185 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
| 186 | CORE_ADDR sp; |
| 187 | gdb_byte buf[8]; |
| 188 | |
| 189 | get_frame_register (this_frame, AMD64_RSP_REGNUM, buf); |
| 190 | sp = extract_unsigned_integer (buf, 8, byte_order); |
| 191 | |
| 192 | /* The sigcontext structure is part of the user context. A pointer |
| 193 | to the user context is passed as the third argument to the signal |
| 194 | handler, i.e. in %rdx. Unfortunately %rdx isn't preserved across |
| 195 | function calls so we can't use it. Fortunately the user context |
| 196 | is part of the signal frame and the unwound %rsp directly points |
| 197 | at it. */ |
| 198 | return sp + AMD64_LINUX_UCONTEXT_SIGCONTEXT_OFFSET; |
| 199 | } |
| 200 | \f |
| 201 | |
| 202 | static LONGEST |
| 203 | amd64_linux_get_syscall_number (struct gdbarch *gdbarch, |
| 204 | ptid_t ptid) |
| 205 | { |
| 206 | struct regcache *regcache = get_thread_regcache (ptid); |
| 207 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
| 208 | /* The content of a register. */ |
| 209 | gdb_byte buf[8]; |
| 210 | /* The result. */ |
| 211 | LONGEST ret; |
| 212 | |
| 213 | /* Getting the system call number from the register. |
| 214 | When dealing with x86_64 architecture, this information |
| 215 | is stored at %rax register. */ |
| 216 | regcache_cooked_read (regcache, AMD64_LINUX_ORIG_RAX_REGNUM, buf); |
| 217 | |
| 218 | ret = extract_signed_integer (buf, 8, byte_order); |
| 219 | |
| 220 | return ret; |
| 221 | } |
| 222 | |
| 223 | |
| 224 | /* From <asm/sigcontext.h>. */ |
| 225 | static int amd64_linux_sc_reg_offset[] = |
| 226 | { |
| 227 | 13 * 8, /* %rax */ |
| 228 | 11 * 8, /* %rbx */ |
| 229 | 14 * 8, /* %rcx */ |
| 230 | 12 * 8, /* %rdx */ |
| 231 | 9 * 8, /* %rsi */ |
| 232 | 8 * 8, /* %rdi */ |
| 233 | 10 * 8, /* %rbp */ |
| 234 | 15 * 8, /* %rsp */ |
| 235 | 0 * 8, /* %r8 */ |
| 236 | 1 * 8, /* %r9 */ |
| 237 | 2 * 8, /* %r10 */ |
| 238 | 3 * 8, /* %r11 */ |
| 239 | 4 * 8, /* %r12 */ |
| 240 | 5 * 8, /* %r13 */ |
| 241 | 6 * 8, /* %r14 */ |
| 242 | 7 * 8, /* %r15 */ |
| 243 | 16 * 8, /* %rip */ |
| 244 | 17 * 8, /* %eflags */ |
| 245 | |
| 246 | /* FIXME: kettenis/2002030531: The registers %cs, %fs and %gs are |
| 247 | available in `struct sigcontext'. However, they only occupy two |
| 248 | bytes instead of four, which makes using them here rather |
| 249 | difficult. Leave them out for now. */ |
| 250 | -1, /* %cs */ |
| 251 | -1, /* %ss */ |
| 252 | -1, /* %ds */ |
| 253 | -1, /* %es */ |
| 254 | -1, /* %fs */ |
| 255 | -1 /* %gs */ |
| 256 | }; |
| 257 | |
| 258 | static int |
| 259 | amd64_linux_register_reggroup_p (struct gdbarch *gdbarch, int regnum, |
| 260 | struct reggroup *group) |
| 261 | { |
| 262 | if (regnum == AMD64_LINUX_ORIG_RAX_REGNUM) |
| 263 | return (group == system_reggroup |
| 264 | || group == save_reggroup |
| 265 | || group == restore_reggroup); |
| 266 | return i386_register_reggroup_p (gdbarch, regnum, group); |
| 267 | } |
| 268 | |
| 269 | /* Set the program counter for process PTID to PC. */ |
| 270 | |
| 271 | static void |
| 272 | amd64_linux_write_pc (struct regcache *regcache, CORE_ADDR pc) |
| 273 | { |
| 274 | regcache_cooked_write_unsigned (regcache, AMD64_RIP_REGNUM, pc); |
| 275 | |
| 276 | /* We must be careful with modifying the program counter. If we |
| 277 | just interrupted a system call, the kernel might try to restart |
| 278 | it when we resume the inferior. On restarting the system call, |
| 279 | the kernel will try backing up the program counter even though it |
| 280 | no longer points at the system call. This typically results in a |
| 281 | SIGSEGV or SIGILL. We can prevent this by writing `-1' in the |
| 282 | "orig_rax" pseudo-register. |
| 283 | |
| 284 | Note that "orig_rax" is saved when setting up a dummy call frame. |
| 285 | This means that it is properly restored when that frame is |
| 286 | popped, and that the interrupted system call will be restarted |
| 287 | when we resume the inferior on return from a function call from |
| 288 | within GDB. In all other cases the system call will not be |
| 289 | restarted. */ |
| 290 | regcache_cooked_write_unsigned (regcache, AMD64_LINUX_ORIG_RAX_REGNUM, -1); |
| 291 | } |
| 292 | |
| 293 | /* Record all registers but IP register for process-record. */ |
| 294 | |
| 295 | static int |
| 296 | amd64_all_but_ip_registers_record (struct regcache *regcache) |
| 297 | { |
| 298 | if (record_arch_list_add_reg (regcache, AMD64_RAX_REGNUM)) |
| 299 | return -1; |
| 300 | if (record_arch_list_add_reg (regcache, AMD64_RCX_REGNUM)) |
| 301 | return -1; |
| 302 | if (record_arch_list_add_reg (regcache, AMD64_RDX_REGNUM)) |
| 303 | return -1; |
| 304 | if (record_arch_list_add_reg (regcache, AMD64_RBX_REGNUM)) |
| 305 | return -1; |
| 306 | if (record_arch_list_add_reg (regcache, AMD64_RSP_REGNUM)) |
| 307 | return -1; |
| 308 | if (record_arch_list_add_reg (regcache, AMD64_RBP_REGNUM)) |
| 309 | return -1; |
| 310 | if (record_arch_list_add_reg (regcache, AMD64_RSI_REGNUM)) |
| 311 | return -1; |
| 312 | if (record_arch_list_add_reg (regcache, AMD64_RDI_REGNUM)) |
| 313 | return -1; |
| 314 | if (record_arch_list_add_reg (regcache, AMD64_R8_REGNUM)) |
| 315 | return -1; |
| 316 | if (record_arch_list_add_reg (regcache, AMD64_R9_REGNUM)) |
| 317 | return -1; |
| 318 | if (record_arch_list_add_reg (regcache, AMD64_R10_REGNUM)) |
| 319 | return -1; |
| 320 | if (record_arch_list_add_reg (regcache, AMD64_R11_REGNUM)) |
| 321 | return -1; |
| 322 | if (record_arch_list_add_reg (regcache, AMD64_R12_REGNUM)) |
| 323 | return -1; |
| 324 | if (record_arch_list_add_reg (regcache, AMD64_R13_REGNUM)) |
| 325 | return -1; |
| 326 | if (record_arch_list_add_reg (regcache, AMD64_R14_REGNUM)) |
| 327 | return -1; |
| 328 | if (record_arch_list_add_reg (regcache, AMD64_R15_REGNUM)) |
| 329 | return -1; |
| 330 | if (record_arch_list_add_reg (regcache, AMD64_EFLAGS_REGNUM)) |
| 331 | return -1; |
| 332 | |
| 333 | return 0; |
| 334 | } |
| 335 | |
| 336 | /* amd64_canonicalize_syscall maps from the native amd64 Linux set |
| 337 | of syscall ids into a canonical set of syscall ids used by |
| 338 | process record. */ |
| 339 | |
| 340 | static enum gdb_syscall |
| 341 | amd64_canonicalize_syscall (enum amd64_syscall syscall_number) |
| 342 | { |
| 343 | switch (syscall_number) { |
| 344 | case amd64_sys_read: |
| 345 | return gdb_sys_read; |
| 346 | |
| 347 | case amd64_sys_write: |
| 348 | return gdb_sys_write; |
| 349 | |
| 350 | case amd64_sys_open: |
| 351 | return gdb_sys_open; |
| 352 | |
| 353 | case amd64_sys_close: |
| 354 | return gdb_sys_close; |
| 355 | |
| 356 | case amd64_sys_newstat: |
| 357 | return gdb_sys_newstat; |
| 358 | |
| 359 | case amd64_sys_newfstat: |
| 360 | return gdb_sys_newfstat; |
| 361 | |
| 362 | case amd64_sys_newlstat: |
| 363 | return gdb_sys_newlstat; |
| 364 | |
| 365 | case amd64_sys_poll: |
| 366 | return gdb_sys_poll; |
| 367 | |
| 368 | case amd64_sys_lseek: |
| 369 | return gdb_sys_lseek; |
| 370 | |
| 371 | case amd64_sys_mmap: |
| 372 | return gdb_sys_mmap2; |
| 373 | |
| 374 | case amd64_sys_mprotect: |
| 375 | return gdb_sys_mprotect; |
| 376 | |
| 377 | case amd64_sys_munmap: |
| 378 | return gdb_sys_munmap; |
| 379 | |
| 380 | case amd64_sys_brk: |
| 381 | return gdb_sys_brk; |
| 382 | |
| 383 | case amd64_sys_rt_sigaction: |
| 384 | return gdb_sys_rt_sigaction; |
| 385 | |
| 386 | case amd64_sys_rt_sigprocmask: |
| 387 | return gdb_sys_rt_sigprocmask; |
| 388 | |
| 389 | case amd64_sys_rt_sigreturn: |
| 390 | return gdb_sys_rt_sigreturn; |
| 391 | |
| 392 | case amd64_sys_ioctl: |
| 393 | return gdb_sys_ioctl; |
| 394 | |
| 395 | case amd64_sys_pread64: |
| 396 | return gdb_sys_pread64; |
| 397 | |
| 398 | case amd64_sys_pwrite64: |
| 399 | return gdb_sys_pwrite64; |
| 400 | |
| 401 | case amd64_sys_readv: |
| 402 | return gdb_sys_readv; |
| 403 | |
| 404 | case amd64_sys_writev: |
| 405 | return gdb_sys_writev; |
| 406 | |
| 407 | case amd64_sys_access: |
| 408 | return gdb_sys_access; |
| 409 | |
| 410 | case amd64_sys_pipe: |
| 411 | return gdb_sys_pipe; |
| 412 | |
| 413 | case amd64_sys_select: |
| 414 | return gdb_sys_select; |
| 415 | |
| 416 | case amd64_sys_sched_yield: |
| 417 | return gdb_sys_sched_yield; |
| 418 | |
| 419 | case amd64_sys_mremap: |
| 420 | return gdb_sys_mremap; |
| 421 | |
| 422 | case amd64_sys_msync: |
| 423 | return gdb_sys_msync; |
| 424 | |
| 425 | case amd64_sys_mincore: |
| 426 | return gdb_sys_mincore; |
| 427 | |
| 428 | case amd64_sys_madvise: |
| 429 | return gdb_sys_madvise; |
| 430 | |
| 431 | case amd64_sys_shmget: |
| 432 | return gdb_sys_shmget; |
| 433 | |
| 434 | case amd64_sys_shmat: |
| 435 | return gdb_sys_shmat; |
| 436 | |
| 437 | case amd64_sys_shmctl: |
| 438 | return gdb_sys_shmctl; |
| 439 | |
| 440 | case amd64_sys_dup: |
| 441 | return gdb_sys_dup; |
| 442 | |
| 443 | case amd64_sys_dup2: |
| 444 | return gdb_sys_dup2; |
| 445 | |
| 446 | case amd64_sys_pause: |
| 447 | return gdb_sys_pause; |
| 448 | |
| 449 | case amd64_sys_nanosleep: |
| 450 | return gdb_sys_nanosleep; |
| 451 | |
| 452 | case amd64_sys_getitimer: |
| 453 | return gdb_sys_getitimer; |
| 454 | |
| 455 | case amd64_sys_alarm: |
| 456 | return gdb_sys_alarm; |
| 457 | |
| 458 | case amd64_sys_setitimer: |
| 459 | return gdb_sys_setitimer; |
| 460 | |
| 461 | case amd64_sys_getpid: |
| 462 | return gdb_sys_getpid; |
| 463 | |
| 464 | case amd64_sys_sendfile64: |
| 465 | return gdb_sys_sendfile64; |
| 466 | |
| 467 | case amd64_sys_socket: |
| 468 | return gdb_sys_socket; |
| 469 | |
| 470 | case amd64_sys_connect: |
| 471 | return gdb_sys_connect; |
| 472 | |
| 473 | case amd64_sys_accept: |
| 474 | return gdb_sys_accept; |
| 475 | |
| 476 | case amd64_sys_sendto: |
| 477 | return gdb_sys_sendto; |
| 478 | |
| 479 | case amd64_sys_recvfrom: |
| 480 | return gdb_sys_recvfrom; |
| 481 | |
| 482 | case amd64_sys_sendmsg: |
| 483 | return gdb_sys_sendmsg; |
| 484 | |
| 485 | case amd64_sys_recvmsg: |
| 486 | return gdb_sys_recvmsg; |
| 487 | |
| 488 | case amd64_sys_shutdown: |
| 489 | return gdb_sys_shutdown; |
| 490 | |
| 491 | case amd64_sys_bind: |
| 492 | return gdb_sys_bind; |
| 493 | |
| 494 | case amd64_sys_listen: |
| 495 | return gdb_sys_listen; |
| 496 | |
| 497 | case amd64_sys_getsockname: |
| 498 | return gdb_sys_getsockname; |
| 499 | |
| 500 | case amd64_sys_getpeername: |
| 501 | return gdb_sys_getpeername; |
| 502 | |
| 503 | case amd64_sys_socketpair: |
| 504 | return gdb_sys_socketpair; |
| 505 | |
| 506 | case amd64_sys_setsockopt: |
| 507 | return gdb_sys_setsockopt; |
| 508 | |
| 509 | case amd64_sys_getsockopt: |
| 510 | return gdb_sys_getsockopt; |
| 511 | |
| 512 | case amd64_sys_clone: |
| 513 | return gdb_sys_clone; |
| 514 | |
| 515 | case amd64_sys_fork: |
| 516 | return gdb_sys_fork; |
| 517 | |
| 518 | case amd64_sys_vfork: |
| 519 | return gdb_sys_vfork; |
| 520 | |
| 521 | case amd64_sys_execve: |
| 522 | return gdb_sys_execve; |
| 523 | |
| 524 | case amd64_sys_exit: |
| 525 | return gdb_sys_exit; |
| 526 | |
| 527 | case amd64_sys_wait4: |
| 528 | return gdb_sys_wait4; |
| 529 | |
| 530 | case amd64_sys_kill: |
| 531 | return gdb_sys_kill; |
| 532 | |
| 533 | case amd64_sys_uname: |
| 534 | return gdb_sys_uname; |
| 535 | |
| 536 | case amd64_sys_semget: |
| 537 | return gdb_sys_semget; |
| 538 | |
| 539 | case amd64_sys_semop: |
| 540 | return gdb_sys_semop; |
| 541 | |
| 542 | case amd64_sys_semctl: |
| 543 | return gdb_sys_semctl; |
| 544 | |
| 545 | case amd64_sys_shmdt: |
| 546 | return gdb_sys_shmdt; |
| 547 | |
| 548 | case amd64_sys_msgget: |
| 549 | return gdb_sys_msgget; |
| 550 | |
| 551 | case amd64_sys_msgsnd: |
| 552 | return gdb_sys_msgsnd; |
| 553 | |
| 554 | case amd64_sys_msgrcv: |
| 555 | return gdb_sys_msgrcv; |
| 556 | |
| 557 | case amd64_sys_msgctl: |
| 558 | return gdb_sys_msgctl; |
| 559 | |
| 560 | case amd64_sys_fcntl: |
| 561 | return gdb_sys_fcntl; |
| 562 | |
| 563 | case amd64_sys_flock: |
| 564 | return gdb_sys_flock; |
| 565 | |
| 566 | case amd64_sys_fsync: |
| 567 | return gdb_sys_fsync; |
| 568 | |
| 569 | case amd64_sys_fdatasync: |
| 570 | return gdb_sys_fdatasync; |
| 571 | |
| 572 | case amd64_sys_truncate: |
| 573 | return gdb_sys_truncate; |
| 574 | |
| 575 | case amd64_sys_ftruncate: |
| 576 | return gdb_sys_ftruncate; |
| 577 | |
| 578 | case amd64_sys_getdents: |
| 579 | return gdb_sys_getdents; |
| 580 | |
| 581 | case amd64_sys_getcwd: |
| 582 | return gdb_sys_getcwd; |
| 583 | |
| 584 | case amd64_sys_chdir: |
| 585 | return gdb_sys_chdir; |
| 586 | |
| 587 | case amd64_sys_fchdir: |
| 588 | return gdb_sys_fchdir; |
| 589 | |
| 590 | case amd64_sys_rename: |
| 591 | return gdb_sys_rename; |
| 592 | |
| 593 | case amd64_sys_mkdir: |
| 594 | return gdb_sys_mkdir; |
| 595 | |
| 596 | case amd64_sys_rmdir: |
| 597 | return gdb_sys_rmdir; |
| 598 | |
| 599 | case amd64_sys_creat: |
| 600 | return gdb_sys_creat; |
| 601 | |
| 602 | case amd64_sys_link: |
| 603 | return gdb_sys_link; |
| 604 | |
| 605 | case amd64_sys_unlink: |
| 606 | return gdb_sys_unlink; |
| 607 | |
| 608 | case amd64_sys_symlink: |
| 609 | return gdb_sys_symlink; |
| 610 | |
| 611 | case amd64_sys_readlink: |
| 612 | return gdb_sys_readlink; |
| 613 | |
| 614 | case amd64_sys_chmod: |
| 615 | return gdb_sys_chmod; |
| 616 | |
| 617 | case amd64_sys_fchmod: |
| 618 | return gdb_sys_fchmod; |
| 619 | |
| 620 | case amd64_sys_chown: |
| 621 | return gdb_sys_chown; |
| 622 | |
| 623 | case amd64_sys_fchown: |
| 624 | return gdb_sys_fchown; |
| 625 | |
| 626 | case amd64_sys_lchown: |
| 627 | return gdb_sys_lchown; |
| 628 | |
| 629 | case amd64_sys_umask: |
| 630 | return gdb_sys_umask; |
| 631 | |
| 632 | case amd64_sys_gettimeofday: |
| 633 | return gdb_sys_gettimeofday; |
| 634 | |
| 635 | case amd64_sys_getrlimit: |
| 636 | return gdb_sys_getrlimit; |
| 637 | |
| 638 | case amd64_sys_getrusage: |
| 639 | return gdb_sys_getrusage; |
| 640 | |
| 641 | case amd64_sys_sysinfo: |
| 642 | return gdb_sys_sysinfo; |
| 643 | |
| 644 | case amd64_sys_times: |
| 645 | return gdb_sys_times; |
| 646 | |
| 647 | case amd64_sys_ptrace: |
| 648 | return gdb_sys_ptrace; |
| 649 | |
| 650 | case amd64_sys_getuid: |
| 651 | return gdb_sys_getuid; |
| 652 | |
| 653 | case amd64_sys_syslog: |
| 654 | return gdb_sys_syslog; |
| 655 | |
| 656 | case amd64_sys_getgid: |
| 657 | return gdb_sys_getgid; |
| 658 | |
| 659 | case amd64_sys_setuid: |
| 660 | return gdb_sys_setuid; |
| 661 | |
| 662 | case amd64_sys_setgid: |
| 663 | return gdb_sys_setgid; |
| 664 | |
| 665 | case amd64_sys_geteuid: |
| 666 | return gdb_sys_geteuid; |
| 667 | |
| 668 | case amd64_sys_getegid: |
| 669 | return gdb_sys_getegid; |
| 670 | |
| 671 | case amd64_sys_setpgid: |
| 672 | return gdb_sys_setpgid; |
| 673 | |
| 674 | case amd64_sys_getppid: |
| 675 | return gdb_sys_getppid; |
| 676 | |
| 677 | case amd64_sys_getpgrp: |
| 678 | return gdb_sys_getpgrp; |
| 679 | |
| 680 | case amd64_sys_setsid: |
| 681 | return gdb_sys_setsid; |
| 682 | |
| 683 | case amd64_sys_setreuid: |
| 684 | return gdb_sys_setreuid; |
| 685 | |
| 686 | case amd64_sys_setregid: |
| 687 | return gdb_sys_setregid; |
| 688 | |
| 689 | case amd64_sys_getgroups: |
| 690 | return gdb_sys_getgroups; |
| 691 | |
| 692 | case amd64_sys_setgroups: |
| 693 | return gdb_sys_setgroups; |
| 694 | |
| 695 | case amd64_sys_setresuid: |
| 696 | return gdb_sys_setresuid; |
| 697 | |
| 698 | case amd64_sys_getresuid: |
| 699 | return gdb_sys_getresuid; |
| 700 | |
| 701 | case amd64_sys_setresgid: |
| 702 | return gdb_sys_setresgid; |
| 703 | |
| 704 | case amd64_sys_getresgid: |
| 705 | return gdb_sys_getresgid; |
| 706 | |
| 707 | case amd64_sys_getpgid: |
| 708 | return gdb_sys_getpgid; |
| 709 | |
| 710 | case amd64_sys_setfsuid: |
| 711 | return gdb_sys_setfsuid; |
| 712 | |
| 713 | case amd64_sys_setfsgid: |
| 714 | return gdb_sys_setfsgid; |
| 715 | |
| 716 | case amd64_sys_getsid: |
| 717 | return gdb_sys_getsid; |
| 718 | |
| 719 | case amd64_sys_capget: |
| 720 | return gdb_sys_capget; |
| 721 | |
| 722 | case amd64_sys_capset: |
| 723 | return gdb_sys_capset; |
| 724 | |
| 725 | case amd64_sys_rt_sigpending: |
| 726 | return gdb_sys_rt_sigpending; |
| 727 | |
| 728 | case amd64_sys_rt_sigtimedwait: |
| 729 | return gdb_sys_rt_sigtimedwait; |
| 730 | |
| 731 | case amd64_sys_rt_sigqueueinfo: |
| 732 | return gdb_sys_rt_sigqueueinfo; |
| 733 | |
| 734 | case amd64_sys_rt_sigsuspend: |
| 735 | return gdb_sys_rt_sigsuspend; |
| 736 | |
| 737 | case amd64_sys_sigaltstack: |
| 738 | return gdb_sys_sigaltstack; |
| 739 | |
| 740 | case amd64_sys_utime: |
| 741 | return gdb_sys_utime; |
| 742 | |
| 743 | case amd64_sys_mknod: |
| 744 | return gdb_sys_mknod; |
| 745 | |
| 746 | case amd64_sys_personality: |
| 747 | return gdb_sys_personality; |
| 748 | |
| 749 | case amd64_sys_ustat: |
| 750 | return gdb_sys_ustat; |
| 751 | |
| 752 | case amd64_sys_statfs: |
| 753 | return gdb_sys_statfs; |
| 754 | |
| 755 | case amd64_sys_fstatfs: |
| 756 | return gdb_sys_fstatfs; |
| 757 | |
| 758 | case amd64_sys_sysfs: |
| 759 | return gdb_sys_sysfs; |
| 760 | |
| 761 | case amd64_sys_getpriority: |
| 762 | return gdb_sys_getpriority; |
| 763 | |
| 764 | case amd64_sys_setpriority: |
| 765 | return gdb_sys_setpriority; |
| 766 | |
| 767 | case amd64_sys_sched_setparam: |
| 768 | return gdb_sys_sched_setparam; |
| 769 | |
| 770 | case amd64_sys_sched_getparam: |
| 771 | return gdb_sys_sched_getparam; |
| 772 | |
| 773 | case amd64_sys_sched_setscheduler: |
| 774 | return gdb_sys_sched_setscheduler; |
| 775 | |
| 776 | case amd64_sys_sched_getscheduler: |
| 777 | return gdb_sys_sched_getscheduler; |
| 778 | |
| 779 | case amd64_sys_sched_get_priority_max: |
| 780 | return gdb_sys_sched_get_priority_max; |
| 781 | |
| 782 | case amd64_sys_sched_get_priority_min: |
| 783 | return gdb_sys_sched_get_priority_min; |
| 784 | |
| 785 | case amd64_sys_sched_rr_get_interval: |
| 786 | return gdb_sys_sched_rr_get_interval; |
| 787 | |
| 788 | case amd64_sys_mlock: |
| 789 | return gdb_sys_mlock; |
| 790 | |
| 791 | case amd64_sys_munlock: |
| 792 | return gdb_sys_munlock; |
| 793 | |
| 794 | case amd64_sys_mlockall: |
| 795 | return gdb_sys_mlockall; |
| 796 | |
| 797 | case amd64_sys_munlockall: |
| 798 | return gdb_sys_munlockall; |
| 799 | |
| 800 | case amd64_sys_vhangup: |
| 801 | return gdb_sys_vhangup; |
| 802 | |
| 803 | case amd64_sys_modify_ldt: |
| 804 | return gdb_sys_modify_ldt; |
| 805 | |
| 806 | case amd64_sys_pivot_root: |
| 807 | return gdb_sys_pivot_root; |
| 808 | |
| 809 | case amd64_sys_sysctl: |
| 810 | return gdb_sys_sysctl; |
| 811 | |
| 812 | case amd64_sys_prctl: |
| 813 | return gdb_sys_prctl; |
| 814 | |
| 815 | case amd64_sys_arch_prctl: |
| 816 | return -1; /* Note */ |
| 817 | |
| 818 | case amd64_sys_adjtimex: |
| 819 | return gdb_sys_adjtimex; |
| 820 | |
| 821 | case amd64_sys_setrlimit: |
| 822 | return gdb_sys_setrlimit; |
| 823 | |
| 824 | case amd64_sys_chroot: |
| 825 | return gdb_sys_chroot; |
| 826 | |
| 827 | case amd64_sys_sync: |
| 828 | return gdb_sys_sync; |
| 829 | |
| 830 | case amd64_sys_acct: |
| 831 | return gdb_sys_acct; |
| 832 | |
| 833 | case amd64_sys_settimeofday: |
| 834 | return gdb_sys_settimeofday; |
| 835 | |
| 836 | case amd64_sys_mount: |
| 837 | return gdb_sys_mount; |
| 838 | |
| 839 | case amd64_sys_umount: |
| 840 | return gdb_sys_umount; |
| 841 | |
| 842 | case amd64_sys_swapon: |
| 843 | return gdb_sys_swapon; |
| 844 | |
| 845 | case amd64_sys_swapoff: |
| 846 | return gdb_sys_swapoff; |
| 847 | |
| 848 | case amd64_sys_reboot: |
| 849 | return gdb_sys_reboot; |
| 850 | |
| 851 | case amd64_sys_sethostname: |
| 852 | return gdb_sys_sethostname; |
| 853 | |
| 854 | case amd64_sys_setdomainname: |
| 855 | return gdb_sys_setdomainname; |
| 856 | |
| 857 | case amd64_sys_iopl: |
| 858 | return gdb_sys_iopl; |
| 859 | |
| 860 | case amd64_sys_ioperm: |
| 861 | return gdb_sys_ioperm; |
| 862 | |
| 863 | case amd64_sys_init_module: |
| 864 | return gdb_sys_init_module; |
| 865 | |
| 866 | case amd64_sys_delete_module: |
| 867 | return gdb_sys_delete_module; |
| 868 | |
| 869 | case amd64_sys_quotactl: |
| 870 | return gdb_sys_quotactl; |
| 871 | |
| 872 | case amd64_sys_nfsservctl: |
| 873 | return gdb_sys_nfsservctl; |
| 874 | |
| 875 | case amd64_sys_gettid: |
| 876 | return gdb_sys_gettid; |
| 877 | |
| 878 | case amd64_sys_readahead: |
| 879 | return gdb_sys_readahead; |
| 880 | |
| 881 | case amd64_sys_setxattr: |
| 882 | return gdb_sys_setxattr; |
| 883 | |
| 884 | case amd64_sys_lsetxattr: |
| 885 | return gdb_sys_lsetxattr; |
| 886 | |
| 887 | case amd64_sys_fsetxattr: |
| 888 | return gdb_sys_fsetxattr; |
| 889 | |
| 890 | case amd64_sys_getxattr: |
| 891 | return gdb_sys_getxattr; |
| 892 | |
| 893 | case amd64_sys_lgetxattr: |
| 894 | return gdb_sys_lgetxattr; |
| 895 | |
| 896 | case amd64_sys_fgetxattr: |
| 897 | return gdb_sys_fgetxattr; |
| 898 | |
| 899 | case amd64_sys_listxattr: |
| 900 | return gdb_sys_listxattr; |
| 901 | |
| 902 | case amd64_sys_llistxattr: |
| 903 | return gdb_sys_llistxattr; |
| 904 | |
| 905 | case amd64_sys_flistxattr: |
| 906 | return gdb_sys_flistxattr; |
| 907 | |
| 908 | case amd64_sys_removexattr: |
| 909 | return gdb_sys_removexattr; |
| 910 | |
| 911 | case amd64_sys_lremovexattr: |
| 912 | return gdb_sys_lremovexattr; |
| 913 | |
| 914 | case amd64_sys_fremovexattr: |
| 915 | return gdb_sys_fremovexattr; |
| 916 | |
| 917 | case amd64_sys_tkill: |
| 918 | return gdb_sys_tkill; |
| 919 | |
| 920 | case amd64_sys_time: |
| 921 | return gdb_sys_time; |
| 922 | |
| 923 | case amd64_sys_futex: |
| 924 | return gdb_sys_futex; |
| 925 | |
| 926 | case amd64_sys_sched_setaffinity: |
| 927 | return gdb_sys_sched_setaffinity; |
| 928 | |
| 929 | case amd64_sys_sched_getaffinity: |
| 930 | return gdb_sys_sched_getaffinity; |
| 931 | |
| 932 | case amd64_sys_io_setup: |
| 933 | return gdb_sys_io_setup; |
| 934 | |
| 935 | case amd64_sys_io_destroy: |
| 936 | return gdb_sys_io_destroy; |
| 937 | |
| 938 | case amd64_sys_io_getevents: |
| 939 | return gdb_sys_io_getevents; |
| 940 | |
| 941 | case amd64_sys_io_submit: |
| 942 | return gdb_sys_io_submit; |
| 943 | |
| 944 | case amd64_sys_io_cancel: |
| 945 | return gdb_sys_io_cancel; |
| 946 | |
| 947 | case amd64_sys_lookup_dcookie: |
| 948 | return gdb_sys_lookup_dcookie; |
| 949 | |
| 950 | case amd64_sys_epoll_create: |
| 951 | return gdb_sys_epoll_create; |
| 952 | |
| 953 | case amd64_sys_remap_file_pages: |
| 954 | return gdb_sys_remap_file_pages; |
| 955 | |
| 956 | case amd64_sys_getdents64: |
| 957 | return gdb_sys_getdents64; |
| 958 | |
| 959 | case amd64_sys_set_tid_address: |
| 960 | return gdb_sys_set_tid_address; |
| 961 | |
| 962 | case amd64_sys_restart_syscall: |
| 963 | return gdb_sys_restart_syscall; |
| 964 | |
| 965 | case amd64_sys_semtimedop: |
| 966 | return gdb_sys_semtimedop; |
| 967 | |
| 968 | case amd64_sys_fadvise64: |
| 969 | return gdb_sys_fadvise64; |
| 970 | |
| 971 | case amd64_sys_timer_create: |
| 972 | return gdb_sys_timer_create; |
| 973 | |
| 974 | case amd64_sys_timer_settime: |
| 975 | return gdb_sys_timer_settime; |
| 976 | |
| 977 | case amd64_sys_timer_gettime: |
| 978 | return gdb_sys_timer_gettime; |
| 979 | |
| 980 | case amd64_sys_timer_getoverrun: |
| 981 | return gdb_sys_timer_getoverrun; |
| 982 | |
| 983 | case amd64_sys_timer_delete: |
| 984 | return gdb_sys_timer_delete; |
| 985 | |
| 986 | case amd64_sys_clock_settime: |
| 987 | return gdb_sys_clock_settime; |
| 988 | |
| 989 | case amd64_sys_clock_gettime: |
| 990 | return gdb_sys_clock_gettime; |
| 991 | |
| 992 | case amd64_sys_clock_getres: |
| 993 | return gdb_sys_clock_getres; |
| 994 | |
| 995 | case amd64_sys_clock_nanosleep: |
| 996 | return gdb_sys_clock_nanosleep; |
| 997 | |
| 998 | case amd64_sys_exit_group: |
| 999 | return gdb_sys_exit_group; |
| 1000 | |
| 1001 | case amd64_sys_epoll_wait: |
| 1002 | return gdb_sys_epoll_wait; |
| 1003 | |
| 1004 | case amd64_sys_epoll_ctl: |
| 1005 | return gdb_sys_epoll_ctl; |
| 1006 | |
| 1007 | case amd64_sys_tgkill: |
| 1008 | return gdb_sys_tgkill; |
| 1009 | |
| 1010 | case amd64_sys_utimes: |
| 1011 | return gdb_sys_utimes; |
| 1012 | |
| 1013 | case amd64_sys_mbind: |
| 1014 | return gdb_sys_mbind; |
| 1015 | |
| 1016 | case amd64_sys_set_mempolicy: |
| 1017 | return gdb_sys_set_mempolicy; |
| 1018 | |
| 1019 | case amd64_sys_get_mempolicy: |
| 1020 | return gdb_sys_get_mempolicy; |
| 1021 | |
| 1022 | case amd64_sys_mq_open: |
| 1023 | return gdb_sys_mq_open; |
| 1024 | |
| 1025 | case amd64_sys_mq_unlink: |
| 1026 | return gdb_sys_mq_unlink; |
| 1027 | |
| 1028 | case amd64_sys_mq_timedsend: |
| 1029 | return gdb_sys_mq_timedsend; |
| 1030 | |
| 1031 | case amd64_sys_mq_timedreceive: |
| 1032 | return gdb_sys_mq_timedreceive; |
| 1033 | |
| 1034 | case amd64_sys_mq_notify: |
| 1035 | return gdb_sys_mq_notify; |
| 1036 | |
| 1037 | case amd64_sys_mq_getsetattr: |
| 1038 | return gdb_sys_mq_getsetattr; |
| 1039 | |
| 1040 | case amd64_sys_kexec_load: |
| 1041 | return gdb_sys_kexec_load; |
| 1042 | |
| 1043 | case amd64_sys_waitid: |
| 1044 | return gdb_sys_waitid; |
| 1045 | |
| 1046 | case amd64_sys_add_key: |
| 1047 | return gdb_sys_add_key; |
| 1048 | |
| 1049 | case amd64_sys_request_key: |
| 1050 | return gdb_sys_request_key; |
| 1051 | |
| 1052 | case amd64_sys_keyctl: |
| 1053 | return gdb_sys_keyctl; |
| 1054 | |
| 1055 | case amd64_sys_ioprio_set: |
| 1056 | return gdb_sys_ioprio_set; |
| 1057 | |
| 1058 | case amd64_sys_ioprio_get: |
| 1059 | return gdb_sys_ioprio_get; |
| 1060 | |
| 1061 | case amd64_sys_inotify_init: |
| 1062 | return gdb_sys_inotify_init; |
| 1063 | |
| 1064 | case amd64_sys_inotify_add_watch: |
| 1065 | return gdb_sys_inotify_add_watch; |
| 1066 | |
| 1067 | case amd64_sys_inotify_rm_watch: |
| 1068 | return gdb_sys_inotify_rm_watch; |
| 1069 | |
| 1070 | case amd64_sys_migrate_pages: |
| 1071 | return gdb_sys_migrate_pages; |
| 1072 | |
| 1073 | case amd64_sys_openat: |
| 1074 | return gdb_sys_openat; |
| 1075 | |
| 1076 | case amd64_sys_mkdirat: |
| 1077 | return gdb_sys_mkdirat; |
| 1078 | |
| 1079 | case amd64_sys_mknodat: |
| 1080 | return gdb_sys_mknodat; |
| 1081 | |
| 1082 | case amd64_sys_fchownat: |
| 1083 | return gdb_sys_fchownat; |
| 1084 | |
| 1085 | case amd64_sys_futimesat: |
| 1086 | return gdb_sys_futimesat; |
| 1087 | |
| 1088 | case amd64_sys_newfstatat: |
| 1089 | return gdb_sys_newfstatat; |
| 1090 | |
| 1091 | case amd64_sys_unlinkat: |
| 1092 | return gdb_sys_unlinkat; |
| 1093 | |
| 1094 | case amd64_sys_renameat: |
| 1095 | return gdb_sys_renameat; |
| 1096 | |
| 1097 | case amd64_sys_linkat: |
| 1098 | return gdb_sys_linkat; |
| 1099 | |
| 1100 | case amd64_sys_symlinkat: |
| 1101 | return gdb_sys_symlinkat; |
| 1102 | |
| 1103 | case amd64_sys_readlinkat: |
| 1104 | return gdb_sys_readlinkat; |
| 1105 | |
| 1106 | case amd64_sys_fchmodat: |
| 1107 | return gdb_sys_fchmodat; |
| 1108 | |
| 1109 | case amd64_sys_faccessat: |
| 1110 | return gdb_sys_faccessat; |
| 1111 | |
| 1112 | case amd64_sys_pselect6: |
| 1113 | return gdb_sys_pselect6; |
| 1114 | |
| 1115 | case amd64_sys_ppoll: |
| 1116 | return gdb_sys_ppoll; |
| 1117 | |
| 1118 | case amd64_sys_unshare: |
| 1119 | return gdb_sys_unshare; |
| 1120 | |
| 1121 | case amd64_sys_set_robust_list: |
| 1122 | return gdb_sys_set_robust_list; |
| 1123 | |
| 1124 | case amd64_sys_get_robust_list: |
| 1125 | return gdb_sys_get_robust_list; |
| 1126 | |
| 1127 | case amd64_sys_splice: |
| 1128 | return gdb_sys_splice; |
| 1129 | |
| 1130 | case amd64_sys_tee: |
| 1131 | return gdb_sys_tee; |
| 1132 | |
| 1133 | case amd64_sys_sync_file_range: |
| 1134 | return gdb_sys_sync_file_range; |
| 1135 | |
| 1136 | case amd64_sys_vmsplice: |
| 1137 | return gdb_sys_vmsplice; |
| 1138 | |
| 1139 | case amd64_sys_move_pages: |
| 1140 | return gdb_sys_move_pages; |
| 1141 | |
| 1142 | default: |
| 1143 | return -1; |
| 1144 | } |
| 1145 | } |
| 1146 | |
| 1147 | /* Parse the arguments of current system call instruction and record |
| 1148 | the values of the registers and memory that will be changed into |
| 1149 | "record_arch_list". This instruction is "syscall". |
| 1150 | |
| 1151 | Return -1 if something wrong. */ |
| 1152 | |
| 1153 | static struct linux_record_tdep amd64_linux_record_tdep; |
| 1154 | |
| 1155 | #define RECORD_ARCH_GET_FS 0x1003 |
| 1156 | #define RECORD_ARCH_GET_GS 0x1004 |
| 1157 | |
| 1158 | static int |
| 1159 | amd64_linux_syscall_record (struct regcache *regcache) |
| 1160 | { |
| 1161 | int ret; |
| 1162 | ULONGEST syscall_native; |
| 1163 | enum gdb_syscall syscall_gdb = -1; |
| 1164 | |
| 1165 | regcache_raw_read_unsigned (regcache, AMD64_RAX_REGNUM, &syscall_native); |
| 1166 | |
| 1167 | switch (syscall_native) |
| 1168 | { |
| 1169 | case amd64_sys_rt_sigreturn: |
| 1170 | if (amd64_all_but_ip_registers_record (regcache)) |
| 1171 | return -1; |
| 1172 | return 0; |
| 1173 | break; |
| 1174 | |
| 1175 | case amd64_sys_arch_prctl: |
| 1176 | { |
| 1177 | ULONGEST arg3; |
| 1178 | |
| 1179 | regcache_raw_read_unsigned (regcache, amd64_linux_record_tdep.arg3, |
| 1180 | &arg3); |
| 1181 | if (arg3 == RECORD_ARCH_GET_FS || arg3 == RECORD_ARCH_GET_GS) |
| 1182 | { |
| 1183 | CORE_ADDR addr; |
| 1184 | |
| 1185 | regcache_raw_read_unsigned (regcache, |
| 1186 | amd64_linux_record_tdep.arg2, |
| 1187 | &addr); |
| 1188 | if (record_arch_list_add_mem (addr, |
| 1189 | amd64_linux_record_tdep.size_ulong)) |
| 1190 | return -1; |
| 1191 | } |
| 1192 | goto record_regs; |
| 1193 | } |
| 1194 | break; |
| 1195 | } |
| 1196 | |
| 1197 | syscall_gdb = amd64_canonicalize_syscall (syscall_native); |
| 1198 | |
| 1199 | if (syscall_gdb < 0) |
| 1200 | { |
| 1201 | printf_unfiltered (_("Process record and replay target doesn't " |
| 1202 | "support syscall number %s\n"), |
| 1203 | pulongest (syscall_native)); |
| 1204 | return -1; |
| 1205 | } |
| 1206 | else |
| 1207 | { |
| 1208 | ret = record_linux_system_call (syscall_gdb, regcache, |
| 1209 | &amd64_linux_record_tdep); |
| 1210 | if (ret) |
| 1211 | return ret; |
| 1212 | } |
| 1213 | |
| 1214 | record_regs: |
| 1215 | /* Record the return value of the system call. */ |
| 1216 | if (record_arch_list_add_reg (regcache, AMD64_RCX_REGNUM)) |
| 1217 | return -1; |
| 1218 | if (record_arch_list_add_reg (regcache, AMD64_R11_REGNUM)) |
| 1219 | return -1; |
| 1220 | |
| 1221 | return 0; |
| 1222 | } |
| 1223 | |
| 1224 | #define AMD64_LINUX_redzone 128 |
| 1225 | #define AMD64_LINUX_xstate 512 |
| 1226 | #define AMD64_LINUX_frame_size 560 |
| 1227 | |
| 1228 | int |
| 1229 | amd64_linux_record_signal (struct gdbarch *gdbarch, |
| 1230 | struct regcache *regcache, |
| 1231 | enum target_signal signal) |
| 1232 | { |
| 1233 | ULONGEST rsp; |
| 1234 | |
| 1235 | if (amd64_all_but_ip_registers_record (regcache)) |
| 1236 | return -1; |
| 1237 | |
| 1238 | if (record_arch_list_add_reg (regcache, AMD64_RIP_REGNUM)) |
| 1239 | return -1; |
| 1240 | |
| 1241 | /* Record the change in the stack. */ |
| 1242 | regcache_raw_read_unsigned (regcache, AMD64_RSP_REGNUM, &rsp); |
| 1243 | /* redzone |
| 1244 | sp -= 128; */ |
| 1245 | rsp -= AMD64_LINUX_redzone; |
| 1246 | /* This is for xstate. |
| 1247 | sp -= sizeof (struct _fpstate); */ |
| 1248 | rsp -= AMD64_LINUX_xstate; |
| 1249 | /* This is for frame_size. |
| 1250 | sp -= sizeof (struct rt_sigframe); */ |
| 1251 | rsp -= AMD64_LINUX_frame_size; |
| 1252 | if (record_arch_list_add_mem (rsp, AMD64_LINUX_redzone |
| 1253 | + AMD64_LINUX_xstate |
| 1254 | + AMD64_LINUX_frame_size)) |
| 1255 | return -1; |
| 1256 | |
| 1257 | if (record_arch_list_add_end ()) |
| 1258 | return -1; |
| 1259 | |
| 1260 | return 0; |
| 1261 | } |
| 1262 | |
| 1263 | /* Get Linux/x86 target description from core dump. */ |
| 1264 | |
| 1265 | static const struct target_desc * |
| 1266 | amd64_linux_core_read_description (struct gdbarch *gdbarch, |
| 1267 | struct target_ops *target, |
| 1268 | bfd *abfd) |
| 1269 | { |
| 1270 | /* Linux/x86-64. */ |
| 1271 | uint64_t xcr0 = i386_linux_core_read_xcr0 (gdbarch, target, abfd); |
| 1272 | switch ((xcr0 & I386_XSTATE_AVX_MASK)) |
| 1273 | { |
| 1274 | case I386_XSTATE_AVX_MASK: |
| 1275 | return tdesc_amd64_avx_linux; |
| 1276 | default: |
| 1277 | return tdesc_amd64_linux; |
| 1278 | } |
| 1279 | } |
| 1280 | |
| 1281 | static void |
| 1282 | amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
| 1283 | { |
| 1284 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
| 1285 | const struct target_desc *tdesc = info.target_desc; |
| 1286 | struct tdesc_arch_data *tdesc_data = (void *) info.tdep_info; |
| 1287 | const struct tdesc_feature *feature; |
| 1288 | int valid_p; |
| 1289 | |
| 1290 | gdb_assert (tdesc_data); |
| 1291 | |
| 1292 | linux_init_abi (info, gdbarch); |
| 1293 | |
| 1294 | tdep->gregset_reg_offset = amd64_linux_gregset_reg_offset; |
| 1295 | tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset); |
| 1296 | tdep->sizeof_gregset = 27 * 8; |
| 1297 | |
| 1298 | amd64_init_abi (info, gdbarch); |
| 1299 | |
| 1300 | /* Reserve a number for orig_rax. */ |
| 1301 | set_gdbarch_num_regs (gdbarch, AMD64_LINUX_NUM_REGS); |
| 1302 | |
| 1303 | if (! tdesc_has_registers (tdesc)) |
| 1304 | tdesc = tdesc_amd64_linux; |
| 1305 | tdep->tdesc = tdesc; |
| 1306 | |
| 1307 | feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux"); |
| 1308 | if (feature == NULL) |
| 1309 | return; |
| 1310 | |
| 1311 | valid_p = tdesc_numbered_register (feature, tdesc_data, |
| 1312 | AMD64_LINUX_ORIG_RAX_REGNUM, |
| 1313 | "orig_rax"); |
| 1314 | if (!valid_p) |
| 1315 | return; |
| 1316 | |
| 1317 | tdep->sigtramp_p = amd64_linux_sigtramp_p; |
| 1318 | tdep->sigcontext_addr = amd64_linux_sigcontext_addr; |
| 1319 | tdep->sc_reg_offset = amd64_linux_sc_reg_offset; |
| 1320 | tdep->sc_num_regs = ARRAY_SIZE (amd64_linux_sc_reg_offset); |
| 1321 | |
| 1322 | tdep->xsave_xcr0_offset = I386_LINUX_XSAVE_XCR0_OFFSET; |
| 1323 | |
| 1324 | /* GNU/Linux uses SVR4-style shared libraries. */ |
| 1325 | set_solib_svr4_fetch_link_map_offsets |
| 1326 | (gdbarch, svr4_lp64_fetch_link_map_offsets); |
| 1327 | |
| 1328 | /* Add the %orig_rax register used for syscall restarting. */ |
| 1329 | set_gdbarch_write_pc (gdbarch, amd64_linux_write_pc); |
| 1330 | |
| 1331 | tdep->register_reggroup_p = amd64_linux_register_reggroup_p; |
| 1332 | |
| 1333 | /* Functions for 'catch syscall'. */ |
| 1334 | set_xml_syscall_file_name (XML_SYSCALL_FILENAME_AMD64); |
| 1335 | set_gdbarch_get_syscall_number (gdbarch, |
| 1336 | amd64_linux_get_syscall_number); |
| 1337 | |
| 1338 | /* Enable TLS support. */ |
| 1339 | set_gdbarch_fetch_tls_load_module_address (gdbarch, |
| 1340 | svr4_fetch_objfile_link_map); |
| 1341 | |
| 1342 | /* GNU/Linux uses SVR4-style shared libraries. */ |
| 1343 | set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target); |
| 1344 | |
| 1345 | /* Install supported register note sections. */ |
| 1346 | set_gdbarch_core_regset_sections (gdbarch, amd64_linux_regset_sections); |
| 1347 | |
| 1348 | set_gdbarch_core_read_description (gdbarch, |
| 1349 | amd64_linux_core_read_description); |
| 1350 | |
| 1351 | /* Displaced stepping. */ |
| 1352 | set_gdbarch_displaced_step_copy_insn (gdbarch, |
| 1353 | amd64_displaced_step_copy_insn); |
| 1354 | set_gdbarch_displaced_step_fixup (gdbarch, amd64_displaced_step_fixup); |
| 1355 | set_gdbarch_displaced_step_free_closure (gdbarch, |
| 1356 | simple_displaced_step_free_closure); |
| 1357 | set_gdbarch_displaced_step_location (gdbarch, |
| 1358 | displaced_step_at_entry_point); |
| 1359 | |
| 1360 | set_gdbarch_get_siginfo_type (gdbarch, linux_get_siginfo_type); |
| 1361 | |
| 1362 | set_gdbarch_process_record (gdbarch, i386_process_record); |
| 1363 | set_gdbarch_process_record_signal (gdbarch, amd64_linux_record_signal); |
| 1364 | |
| 1365 | /* Initialize the amd64_linux_record_tdep. */ |
| 1366 | /* These values are the size of the type that will be used in a system |
| 1367 | call. They are obtained from Linux Kernel source. */ |
| 1368 | amd64_linux_record_tdep.size_pointer |
| 1369 | = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT; |
| 1370 | amd64_linux_record_tdep.size__old_kernel_stat = 32; |
| 1371 | amd64_linux_record_tdep.size_tms = 32; |
| 1372 | amd64_linux_record_tdep.size_loff_t = 8; |
| 1373 | amd64_linux_record_tdep.size_flock = 32; |
| 1374 | amd64_linux_record_tdep.size_oldold_utsname = 45; |
| 1375 | amd64_linux_record_tdep.size_ustat = 32; |
| 1376 | /* ADM64 doesn't need this size because it doesn't have sys_sigaction |
| 1377 | but sys_rt_sigaction. */ |
| 1378 | amd64_linux_record_tdep.size_old_sigaction = 152; |
| 1379 | /* ADM64 doesn't need this size because it doesn't have sys_sigpending |
| 1380 | but sys_rt_sigpending. */ |
| 1381 | amd64_linux_record_tdep.size_old_sigset_t = 128; |
| 1382 | amd64_linux_record_tdep.size_rlimit = 16; |
| 1383 | amd64_linux_record_tdep.size_rusage = 144; |
| 1384 | amd64_linux_record_tdep.size_timeval = 16; |
| 1385 | amd64_linux_record_tdep.size_timezone = 8; |
| 1386 | /* ADM64 doesn't need this size because it doesn't have sys_getgroups16 |
| 1387 | but sys_getgroups. */ |
| 1388 | amd64_linux_record_tdep.size_old_gid_t = 2; |
| 1389 | /* ADM64 doesn't need this size because it doesn't have sys_getresuid16 |
| 1390 | but sys_getresuid. */ |
| 1391 | amd64_linux_record_tdep.size_old_uid_t = 2; |
| 1392 | amd64_linux_record_tdep.size_fd_set = 128; |
| 1393 | amd64_linux_record_tdep.size_dirent = 280; |
| 1394 | amd64_linux_record_tdep.size_dirent64 = 280; |
| 1395 | amd64_linux_record_tdep.size_statfs = 120; |
| 1396 | amd64_linux_record_tdep.size_statfs64 = 120; |
| 1397 | amd64_linux_record_tdep.size_sockaddr = 16; |
| 1398 | amd64_linux_record_tdep.size_int |
| 1399 | = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT; |
| 1400 | amd64_linux_record_tdep.size_long |
| 1401 | = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT; |
| 1402 | amd64_linux_record_tdep.size_ulong |
| 1403 | = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT; |
| 1404 | amd64_linux_record_tdep.size_msghdr = 56; |
| 1405 | amd64_linux_record_tdep.size_itimerval = 32; |
| 1406 | amd64_linux_record_tdep.size_stat = 144; |
| 1407 | amd64_linux_record_tdep.size_old_utsname = 325; |
| 1408 | amd64_linux_record_tdep.size_sysinfo = 112; |
| 1409 | amd64_linux_record_tdep.size_msqid_ds = 120; |
| 1410 | amd64_linux_record_tdep.size_shmid_ds = 112; |
| 1411 | amd64_linux_record_tdep.size_new_utsname = 390; |
| 1412 | amd64_linux_record_tdep.size_timex = 208; |
| 1413 | amd64_linux_record_tdep.size_mem_dqinfo = 24; |
| 1414 | amd64_linux_record_tdep.size_if_dqblk = 72; |
| 1415 | amd64_linux_record_tdep.size_fs_quota_stat = 80; |
| 1416 | amd64_linux_record_tdep.size_timespec = 16; |
| 1417 | amd64_linux_record_tdep.size_pollfd = 8; |
| 1418 | amd64_linux_record_tdep.size_NFS_FHSIZE = 32; |
| 1419 | amd64_linux_record_tdep.size_knfsd_fh = 132; |
| 1420 | amd64_linux_record_tdep.size_TASK_COMM_LEN = 16; |
| 1421 | amd64_linux_record_tdep.size_sigaction = 152; |
| 1422 | amd64_linux_record_tdep.size_sigset_t = 128; |
| 1423 | amd64_linux_record_tdep.size_siginfo_t = 128; |
| 1424 | amd64_linux_record_tdep.size_cap_user_data_t = 8; |
| 1425 | amd64_linux_record_tdep.size_stack_t = 24; |
| 1426 | amd64_linux_record_tdep.size_off_t = 8; |
| 1427 | amd64_linux_record_tdep.size_stat64 = 144; |
| 1428 | amd64_linux_record_tdep.size_gid_t = 4; |
| 1429 | amd64_linux_record_tdep.size_uid_t = 4; |
| 1430 | amd64_linux_record_tdep.size_PAGE_SIZE = 4096; |
| 1431 | amd64_linux_record_tdep.size_flock64 = 32; |
| 1432 | amd64_linux_record_tdep.size_user_desc = 16; |
| 1433 | amd64_linux_record_tdep.size_io_event = 32; |
| 1434 | amd64_linux_record_tdep.size_iocb = 64; |
| 1435 | amd64_linux_record_tdep.size_epoll_event = 12; |
| 1436 | amd64_linux_record_tdep.size_itimerspec = 32; |
| 1437 | amd64_linux_record_tdep.size_mq_attr = 64; |
| 1438 | amd64_linux_record_tdep.size_siginfo = 128; |
| 1439 | amd64_linux_record_tdep.size_termios = 60; |
| 1440 | amd64_linux_record_tdep.size_termios2 = 44; |
| 1441 | amd64_linux_record_tdep.size_pid_t = 4; |
| 1442 | amd64_linux_record_tdep.size_winsize = 8; |
| 1443 | amd64_linux_record_tdep.size_serial_struct = 72; |
| 1444 | amd64_linux_record_tdep.size_serial_icounter_struct = 80; |
| 1445 | amd64_linux_record_tdep.size_hayes_esp_config = 12; |
| 1446 | amd64_linux_record_tdep.size_size_t = 8; |
| 1447 | amd64_linux_record_tdep.size_iovec = 16; |
| 1448 | |
| 1449 | /* These values are the second argument of system call "sys_ioctl". |
| 1450 | They are obtained from Linux Kernel source. */ |
| 1451 | amd64_linux_record_tdep.ioctl_TCGETS = 0x5401; |
| 1452 | amd64_linux_record_tdep.ioctl_TCSETS = 0x5402; |
| 1453 | amd64_linux_record_tdep.ioctl_TCSETSW = 0x5403; |
| 1454 | amd64_linux_record_tdep.ioctl_TCSETSF = 0x5404; |
| 1455 | amd64_linux_record_tdep.ioctl_TCGETA = 0x5405; |
| 1456 | amd64_linux_record_tdep.ioctl_TCSETA = 0x5406; |
| 1457 | amd64_linux_record_tdep.ioctl_TCSETAW = 0x5407; |
| 1458 | amd64_linux_record_tdep.ioctl_TCSETAF = 0x5408; |
| 1459 | amd64_linux_record_tdep.ioctl_TCSBRK = 0x5409; |
| 1460 | amd64_linux_record_tdep.ioctl_TCXONC = 0x540A; |
| 1461 | amd64_linux_record_tdep.ioctl_TCFLSH = 0x540B; |
| 1462 | amd64_linux_record_tdep.ioctl_TIOCEXCL = 0x540C; |
| 1463 | amd64_linux_record_tdep.ioctl_TIOCNXCL = 0x540D; |
| 1464 | amd64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540E; |
| 1465 | amd64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540F; |
| 1466 | amd64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410; |
| 1467 | amd64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411; |
| 1468 | amd64_linux_record_tdep.ioctl_TIOCSTI = 0x5412; |
| 1469 | amd64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413; |
| 1470 | amd64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414; |
| 1471 | amd64_linux_record_tdep.ioctl_TIOCMGET = 0x5415; |
| 1472 | amd64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416; |
| 1473 | amd64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417; |
| 1474 | amd64_linux_record_tdep.ioctl_TIOCMSET = 0x5418; |
| 1475 | amd64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419; |
| 1476 | amd64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541A; |
| 1477 | amd64_linux_record_tdep.ioctl_FIONREAD = 0x541B; |
| 1478 | amd64_linux_record_tdep.ioctl_TIOCINQ |
| 1479 | = amd64_linux_record_tdep.ioctl_FIONREAD; |
| 1480 | amd64_linux_record_tdep.ioctl_TIOCLINUX = 0x541C; |
| 1481 | amd64_linux_record_tdep.ioctl_TIOCCONS = 0x541D; |
| 1482 | amd64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541E; |
| 1483 | amd64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541F; |
| 1484 | amd64_linux_record_tdep.ioctl_TIOCPKT = 0x5420; |
| 1485 | amd64_linux_record_tdep.ioctl_FIONBIO = 0x5421; |
| 1486 | amd64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422; |
| 1487 | amd64_linux_record_tdep.ioctl_TIOCSETD = 0x5423; |
| 1488 | amd64_linux_record_tdep.ioctl_TIOCGETD = 0x5424; |
| 1489 | amd64_linux_record_tdep.ioctl_TCSBRKP = 0x5425; |
| 1490 | amd64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426; |
| 1491 | amd64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427; |
| 1492 | amd64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428; |
| 1493 | amd64_linux_record_tdep.ioctl_TIOCGSID = 0x5429; |
| 1494 | amd64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a; |
| 1495 | amd64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b; |
| 1496 | amd64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c; |
| 1497 | amd64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d; |
| 1498 | amd64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430; |
| 1499 | amd64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431; |
| 1500 | amd64_linux_record_tdep.ioctl_FIONCLEX = 0x5450; |
| 1501 | amd64_linux_record_tdep.ioctl_FIOCLEX = 0x5451; |
| 1502 | amd64_linux_record_tdep.ioctl_FIOASYNC = 0x5452; |
| 1503 | amd64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453; |
| 1504 | amd64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454; |
| 1505 | amd64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455; |
| 1506 | amd64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456; |
| 1507 | amd64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457; |
| 1508 | amd64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458; |
| 1509 | amd64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459; |
| 1510 | amd64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545A; |
| 1511 | amd64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545B; |
| 1512 | amd64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545C; |
| 1513 | amd64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545D; |
| 1514 | amd64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545E; |
| 1515 | amd64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545F; |
| 1516 | amd64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460; |
| 1517 | |
| 1518 | /* These values are the second argument of system call "sys_fcntl" |
| 1519 | and "sys_fcntl64". They are obtained from Linux Kernel source. */ |
| 1520 | amd64_linux_record_tdep.fcntl_F_GETLK = 5; |
| 1521 | amd64_linux_record_tdep.fcntl_F_GETLK64 = 12; |
| 1522 | amd64_linux_record_tdep.fcntl_F_SETLK64 = 13; |
| 1523 | amd64_linux_record_tdep.fcntl_F_SETLKW64 = 14; |
| 1524 | |
| 1525 | amd64_linux_record_tdep.arg1 = AMD64_RDI_REGNUM; |
| 1526 | amd64_linux_record_tdep.arg2 = AMD64_RSI_REGNUM; |
| 1527 | amd64_linux_record_tdep.arg3 = AMD64_RDX_REGNUM; |
| 1528 | amd64_linux_record_tdep.arg4 = AMD64_R10_REGNUM; |
| 1529 | amd64_linux_record_tdep.arg5 = AMD64_R8_REGNUM; |
| 1530 | amd64_linux_record_tdep.arg6 = AMD64_R9_REGNUM; |
| 1531 | |
| 1532 | tdep->i386_syscall_record = amd64_linux_syscall_record; |
| 1533 | } |
| 1534 | \f |
| 1535 | |
| 1536 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
| 1537 | extern void _initialize_amd64_linux_tdep (void); |
| 1538 | |
| 1539 | void |
| 1540 | _initialize_amd64_linux_tdep (void) |
| 1541 | { |
| 1542 | gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, |
| 1543 | GDB_OSABI_LINUX, amd64_linux_init_abi); |
| 1544 | |
| 1545 | /* Initialize the Linux target description. */ |
| 1546 | initialize_tdesc_amd64_linux (); |
| 1547 | initialize_tdesc_amd64_avx_linux (); |
| 1548 | } |