| 1 | /* Low-level siginfo manipulation for amd64. |
| 2 | |
| 3 | Copyright (C) 2002-2019 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include <signal.h> |
| 21 | #include "gdbsupport/common-defs.h" |
| 22 | #include "amd64-linux-siginfo.h" |
| 23 | |
| 24 | #define GDB_SI_SIZE 128 |
| 25 | |
| 26 | /* The types below define the most complete kernel siginfo types known |
| 27 | for the architecture, independent of the system/libc headers. They |
| 28 | are named from a 64-bit kernel's perspective: |
| 29 | |
| 30 | | layout | type | |
| 31 | |--------+----------------------| |
| 32 | | 64-bit | nat_siginfo_t | |
| 33 | | 32-bit | compat_siginfo_t | |
| 34 | | x32 | compat_x32_siginfo_t | |
| 35 | */ |
| 36 | |
| 37 | #ifndef __ILP32__ |
| 38 | |
| 39 | typedef int nat_int_t; |
| 40 | typedef unsigned long nat_uptr_t; |
| 41 | |
| 42 | typedef int nat_time_t; |
| 43 | typedef int nat_timer_t; |
| 44 | |
| 45 | /* For native 64-bit, clock_t in _sigchld is 64-bit. */ |
| 46 | typedef long nat_clock_t; |
| 47 | |
| 48 | typedef union nat_sigval |
| 49 | { |
| 50 | nat_int_t sival_int; |
| 51 | nat_uptr_t sival_ptr; |
| 52 | } nat_sigval_t; |
| 53 | |
| 54 | typedef struct nat_siginfo |
| 55 | { |
| 56 | int si_signo; |
| 57 | int si_errno; |
| 58 | int si_code; |
| 59 | |
| 60 | union |
| 61 | { |
| 62 | int _pad[((128 / sizeof (int)) - 4)]; |
| 63 | /* kill() */ |
| 64 | struct |
| 65 | { |
| 66 | unsigned int _pid; |
| 67 | unsigned int _uid; |
| 68 | } _kill; |
| 69 | |
| 70 | /* POSIX.1b timers */ |
| 71 | struct |
| 72 | { |
| 73 | nat_timer_t _tid; |
| 74 | int _overrun; |
| 75 | nat_sigval_t _sigval; |
| 76 | } _timer; |
| 77 | |
| 78 | /* POSIX.1b signals */ |
| 79 | struct |
| 80 | { |
| 81 | unsigned int _pid; |
| 82 | unsigned int _uid; |
| 83 | nat_sigval_t _sigval; |
| 84 | } _rt; |
| 85 | |
| 86 | /* SIGCHLD */ |
| 87 | struct |
| 88 | { |
| 89 | unsigned int _pid; |
| 90 | unsigned int _uid; |
| 91 | int _status; |
| 92 | nat_clock_t _utime; |
| 93 | nat_clock_t _stime; |
| 94 | } _sigchld; |
| 95 | |
| 96 | /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ |
| 97 | struct |
| 98 | { |
| 99 | nat_uptr_t _addr; |
| 100 | short int _addr_lsb; |
| 101 | struct |
| 102 | { |
| 103 | nat_uptr_t _lower; |
| 104 | nat_uptr_t _upper; |
| 105 | } si_addr_bnd; |
| 106 | } _sigfault; |
| 107 | |
| 108 | /* SIGPOLL */ |
| 109 | struct |
| 110 | { |
| 111 | int _band; |
| 112 | int _fd; |
| 113 | } _sigpoll; |
| 114 | } _sifields; |
| 115 | } nat_siginfo_t; |
| 116 | |
| 117 | #endif /* __ILP32__ */ |
| 118 | |
| 119 | /* These types below (compat_*) define a siginfo type that is layout |
| 120 | compatible with the siginfo type exported by the 32-bit userspace |
| 121 | support. */ |
| 122 | |
| 123 | typedef int compat_int_t; |
| 124 | typedef unsigned int compat_uptr_t; |
| 125 | |
| 126 | typedef int compat_time_t; |
| 127 | typedef int compat_timer_t; |
| 128 | typedef int compat_clock_t; |
| 129 | |
| 130 | struct compat_timeval |
| 131 | { |
| 132 | compat_time_t tv_sec; |
| 133 | int tv_usec; |
| 134 | }; |
| 135 | |
| 136 | typedef union compat_sigval |
| 137 | { |
| 138 | compat_int_t sival_int; |
| 139 | compat_uptr_t sival_ptr; |
| 140 | } compat_sigval_t; |
| 141 | |
| 142 | typedef struct compat_siginfo |
| 143 | { |
| 144 | int si_signo; |
| 145 | int si_errno; |
| 146 | int si_code; |
| 147 | |
| 148 | union |
| 149 | { |
| 150 | int _pad[((128 / sizeof (int)) - 3)]; |
| 151 | |
| 152 | /* kill() */ |
| 153 | struct |
| 154 | { |
| 155 | unsigned int _pid; |
| 156 | unsigned int _uid; |
| 157 | } _kill; |
| 158 | |
| 159 | /* POSIX.1b timers */ |
| 160 | struct |
| 161 | { |
| 162 | compat_timer_t _tid; |
| 163 | int _overrun; |
| 164 | compat_sigval_t _sigval; |
| 165 | } _timer; |
| 166 | |
| 167 | /* POSIX.1b signals */ |
| 168 | struct |
| 169 | { |
| 170 | unsigned int _pid; |
| 171 | unsigned int _uid; |
| 172 | compat_sigval_t _sigval; |
| 173 | } _rt; |
| 174 | |
| 175 | /* SIGCHLD */ |
| 176 | struct |
| 177 | { |
| 178 | unsigned int _pid; |
| 179 | unsigned int _uid; |
| 180 | int _status; |
| 181 | compat_clock_t _utime; |
| 182 | compat_clock_t _stime; |
| 183 | } _sigchld; |
| 184 | |
| 185 | /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ |
| 186 | struct |
| 187 | { |
| 188 | unsigned int _addr; |
| 189 | short int _addr_lsb; |
| 190 | struct |
| 191 | { |
| 192 | unsigned int _lower; |
| 193 | unsigned int _upper; |
| 194 | } si_addr_bnd; |
| 195 | } _sigfault; |
| 196 | |
| 197 | /* SIGPOLL */ |
| 198 | struct |
| 199 | { |
| 200 | int _band; |
| 201 | int _fd; |
| 202 | } _sigpoll; |
| 203 | } _sifields; |
| 204 | } compat_siginfo_t; |
| 205 | |
| 206 | /* For x32, clock_t in _sigchld is 64bit aligned at 4 bytes. */ |
| 207 | typedef long __attribute__ ((__aligned__ (4))) compat_x32_clock_t; |
| 208 | |
| 209 | typedef struct compat_x32_siginfo |
| 210 | { |
| 211 | int si_signo; |
| 212 | int si_errno; |
| 213 | int si_code; |
| 214 | |
| 215 | union |
| 216 | { |
| 217 | int _pad[((128 / sizeof (int)) - 3)]; |
| 218 | |
| 219 | /* kill() */ |
| 220 | struct |
| 221 | { |
| 222 | unsigned int _pid; |
| 223 | unsigned int _uid; |
| 224 | } _kill; |
| 225 | |
| 226 | /* POSIX.1b timers */ |
| 227 | struct |
| 228 | { |
| 229 | compat_timer_t _tid; |
| 230 | int _overrun; |
| 231 | compat_sigval_t _sigval; |
| 232 | } _timer; |
| 233 | |
| 234 | /* POSIX.1b signals */ |
| 235 | struct |
| 236 | { |
| 237 | unsigned int _pid; |
| 238 | unsigned int _uid; |
| 239 | compat_sigval_t _sigval; |
| 240 | } _rt; |
| 241 | |
| 242 | /* SIGCHLD */ |
| 243 | struct |
| 244 | { |
| 245 | unsigned int _pid; |
| 246 | unsigned int _uid; |
| 247 | int _status; |
| 248 | compat_x32_clock_t _utime; |
| 249 | compat_x32_clock_t _stime; |
| 250 | } _sigchld; |
| 251 | |
| 252 | /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ |
| 253 | struct |
| 254 | { |
| 255 | unsigned int _addr; |
| 256 | unsigned int _addr_lsb; |
| 257 | } _sigfault; |
| 258 | |
| 259 | /* SIGPOLL */ |
| 260 | struct |
| 261 | { |
| 262 | int _band; |
| 263 | int _fd; |
| 264 | } _sigpoll; |
| 265 | } _sifields; |
| 266 | } compat_x32_siginfo_t __attribute__ ((__aligned__ (8))); |
| 267 | |
| 268 | /* To simplify usage of siginfo fields. */ |
| 269 | |
| 270 | #define cpt_si_pid _sifields._kill._pid |
| 271 | #define cpt_si_uid _sifields._kill._uid |
| 272 | #define cpt_si_timerid _sifields._timer._tid |
| 273 | #define cpt_si_overrun _sifields._timer._overrun |
| 274 | #define cpt_si_status _sifields._sigchld._status |
| 275 | #define cpt_si_utime _sifields._sigchld._utime |
| 276 | #define cpt_si_stime _sifields._sigchld._stime |
| 277 | #define cpt_si_ptr _sifields._rt._sigval.sival_ptr |
| 278 | #define cpt_si_addr _sifields._sigfault._addr |
| 279 | #define cpt_si_addr_lsb _sifields._sigfault._addr_lsb |
| 280 | #define cpt_si_band _sifields._sigpoll._band |
| 281 | #define cpt_si_fd _sifields._sigpoll._fd |
| 282 | |
| 283 | /* glibc at least up to 2.3.2 doesn't have si_timerid, si_overrun. |
| 284 | In their place is si_timer1,si_timer2. */ |
| 285 | |
| 286 | #ifndef si_timerid |
| 287 | #define si_timerid si_timer1 |
| 288 | #endif |
| 289 | #ifndef si_overrun |
| 290 | #define si_overrun si_timer2 |
| 291 | #endif |
| 292 | |
| 293 | /* The type of the siginfo object the kernel returns in |
| 294 | PTRACE_GETSIGINFO. If gdb is built as a x32 program, we get a x32 |
| 295 | siginfo. */ |
| 296 | #ifdef __ILP32__ |
| 297 | typedef compat_x32_siginfo_t ptrace_siginfo_t; |
| 298 | #else |
| 299 | typedef nat_siginfo_t ptrace_siginfo_t; |
| 300 | #endif |
| 301 | |
| 302 | /* Convert the system provided siginfo into compatible siginfo. */ |
| 303 | |
| 304 | static void |
| 305 | compat_siginfo_from_siginfo (compat_siginfo_t *to, const siginfo_t *from) |
| 306 | { |
| 307 | ptrace_siginfo_t from_ptrace; |
| 308 | |
| 309 | memcpy (&from_ptrace, from, sizeof (from_ptrace)); |
| 310 | memset (to, 0, sizeof (*to)); |
| 311 | |
| 312 | to->si_signo = from_ptrace.si_signo; |
| 313 | to->si_errno = from_ptrace.si_errno; |
| 314 | to->si_code = from_ptrace.si_code; |
| 315 | |
| 316 | if (to->si_code == SI_TIMER) |
| 317 | { |
| 318 | to->cpt_si_timerid = from_ptrace.cpt_si_timerid; |
| 319 | to->cpt_si_overrun = from_ptrace.cpt_si_overrun; |
| 320 | to->cpt_si_ptr = from_ptrace.cpt_si_ptr; |
| 321 | } |
| 322 | else if (to->si_code == SI_USER) |
| 323 | { |
| 324 | to->cpt_si_pid = from_ptrace.cpt_si_pid; |
| 325 | to->cpt_si_uid = from_ptrace.cpt_si_uid; |
| 326 | } |
| 327 | else if (to->si_code < 0) |
| 328 | { |
| 329 | to->cpt_si_pid = from_ptrace.cpt_si_pid; |
| 330 | to->cpt_si_uid = from_ptrace.cpt_si_uid; |
| 331 | to->cpt_si_ptr = from_ptrace.cpt_si_ptr; |
| 332 | } |
| 333 | else |
| 334 | { |
| 335 | switch (to->si_signo) |
| 336 | { |
| 337 | case SIGCHLD: |
| 338 | to->cpt_si_pid = from_ptrace.cpt_si_pid; |
| 339 | to->cpt_si_uid = from_ptrace.cpt_si_uid; |
| 340 | to->cpt_si_status = from_ptrace.cpt_si_status; |
| 341 | to->cpt_si_utime = from_ptrace.cpt_si_utime; |
| 342 | to->cpt_si_stime = from_ptrace.cpt_si_stime; |
| 343 | break; |
| 344 | case SIGILL: |
| 345 | case SIGFPE: |
| 346 | case SIGSEGV: |
| 347 | case SIGBUS: |
| 348 | to->cpt_si_addr = from_ptrace.cpt_si_addr; |
| 349 | break; |
| 350 | case SIGPOLL: |
| 351 | to->cpt_si_band = from_ptrace.cpt_si_band; |
| 352 | to->cpt_si_fd = from_ptrace.cpt_si_fd; |
| 353 | break; |
| 354 | default: |
| 355 | to->cpt_si_pid = from_ptrace.cpt_si_pid; |
| 356 | to->cpt_si_uid = from_ptrace.cpt_si_uid; |
| 357 | to->cpt_si_ptr = from_ptrace.cpt_si_ptr; |
| 358 | break; |
| 359 | } |
| 360 | } |
| 361 | } |
| 362 | |
| 363 | /* Convert the compatible siginfo into system siginfo. */ |
| 364 | |
| 365 | static void |
| 366 | siginfo_from_compat_siginfo (siginfo_t *to, const compat_siginfo_t *from) |
| 367 | { |
| 368 | ptrace_siginfo_t to_ptrace; |
| 369 | |
| 370 | memset (&to_ptrace, 0, sizeof (to_ptrace)); |
| 371 | |
| 372 | to_ptrace.si_signo = from->si_signo; |
| 373 | to_ptrace.si_errno = from->si_errno; |
| 374 | to_ptrace.si_code = from->si_code; |
| 375 | |
| 376 | if (to_ptrace.si_code == SI_TIMER) |
| 377 | { |
| 378 | to_ptrace.cpt_si_timerid = from->cpt_si_timerid; |
| 379 | to_ptrace.cpt_si_overrun = from->cpt_si_overrun; |
| 380 | to_ptrace.cpt_si_ptr = from->cpt_si_ptr; |
| 381 | } |
| 382 | else if (to_ptrace.si_code == SI_USER) |
| 383 | { |
| 384 | to_ptrace.cpt_si_pid = from->cpt_si_pid; |
| 385 | to_ptrace.cpt_si_uid = from->cpt_si_uid; |
| 386 | } |
| 387 | if (to_ptrace.si_code < 0) |
| 388 | { |
| 389 | to_ptrace.cpt_si_pid = from->cpt_si_pid; |
| 390 | to_ptrace.cpt_si_uid = from->cpt_si_uid; |
| 391 | to_ptrace.cpt_si_ptr = from->cpt_si_ptr; |
| 392 | } |
| 393 | else |
| 394 | { |
| 395 | switch (to_ptrace.si_signo) |
| 396 | { |
| 397 | case SIGCHLD: |
| 398 | to_ptrace.cpt_si_pid = from->cpt_si_pid; |
| 399 | to_ptrace.cpt_si_uid = from->cpt_si_uid; |
| 400 | to_ptrace.cpt_si_status = from->cpt_si_status; |
| 401 | to_ptrace.cpt_si_utime = from->cpt_si_utime; |
| 402 | to_ptrace.cpt_si_stime = from->cpt_si_stime; |
| 403 | break; |
| 404 | case SIGILL: |
| 405 | case SIGFPE: |
| 406 | case SIGSEGV: |
| 407 | case SIGBUS: |
| 408 | to_ptrace.cpt_si_addr = from->cpt_si_addr; |
| 409 | to_ptrace.cpt_si_addr_lsb = from->cpt_si_addr_lsb; |
| 410 | break; |
| 411 | case SIGPOLL: |
| 412 | to_ptrace.cpt_si_band = from->cpt_si_band; |
| 413 | to_ptrace.cpt_si_fd = from->cpt_si_fd; |
| 414 | break; |
| 415 | default: |
| 416 | to_ptrace.cpt_si_pid = from->cpt_si_pid; |
| 417 | to_ptrace.cpt_si_uid = from->cpt_si_uid; |
| 418 | to_ptrace.cpt_si_ptr = from->cpt_si_ptr; |
| 419 | break; |
| 420 | } |
| 421 | } |
| 422 | memcpy (to, &to_ptrace, sizeof (to_ptrace)); |
| 423 | } |
| 424 | |
| 425 | /* Convert the system provided siginfo into compatible x32 siginfo. */ |
| 426 | |
| 427 | static void |
| 428 | compat_x32_siginfo_from_siginfo (compat_x32_siginfo_t *to, |
| 429 | const siginfo_t *from) |
| 430 | { |
| 431 | ptrace_siginfo_t from_ptrace; |
| 432 | |
| 433 | memcpy (&from_ptrace, from, sizeof (from_ptrace)); |
| 434 | memset (to, 0, sizeof (*to)); |
| 435 | |
| 436 | to->si_signo = from_ptrace.si_signo; |
| 437 | to->si_errno = from_ptrace.si_errno; |
| 438 | to->si_code = from_ptrace.si_code; |
| 439 | |
| 440 | if (to->si_code == SI_TIMER) |
| 441 | { |
| 442 | to->cpt_si_timerid = from_ptrace.cpt_si_timerid; |
| 443 | to->cpt_si_overrun = from_ptrace.cpt_si_overrun; |
| 444 | to->cpt_si_ptr = from_ptrace.cpt_si_ptr; |
| 445 | } |
| 446 | else if (to->si_code == SI_USER) |
| 447 | { |
| 448 | to->cpt_si_pid = from_ptrace.cpt_si_pid; |
| 449 | to->cpt_si_uid = from_ptrace.cpt_si_uid; |
| 450 | } |
| 451 | else if (to->si_code < 0) |
| 452 | { |
| 453 | to->cpt_si_pid = from_ptrace.cpt_si_pid; |
| 454 | to->cpt_si_uid = from_ptrace.cpt_si_uid; |
| 455 | to->cpt_si_ptr = from_ptrace.cpt_si_ptr; |
| 456 | } |
| 457 | else |
| 458 | { |
| 459 | switch (to->si_signo) |
| 460 | { |
| 461 | case SIGCHLD: |
| 462 | to->cpt_si_pid = from_ptrace.cpt_si_pid; |
| 463 | to->cpt_si_uid = from_ptrace.cpt_si_uid; |
| 464 | to->cpt_si_status = from_ptrace.cpt_si_status; |
| 465 | memcpy (&to->cpt_si_utime, &from_ptrace.cpt_si_utime, |
| 466 | sizeof (to->cpt_si_utime)); |
| 467 | memcpy (&to->cpt_si_stime, &from_ptrace.cpt_si_stime, |
| 468 | sizeof (to->cpt_si_stime)); |
| 469 | break; |
| 470 | case SIGILL: |
| 471 | case SIGFPE: |
| 472 | case SIGSEGV: |
| 473 | case SIGBUS: |
| 474 | to->cpt_si_addr = from_ptrace.cpt_si_addr; |
| 475 | break; |
| 476 | case SIGPOLL: |
| 477 | to->cpt_si_band = from_ptrace.cpt_si_band; |
| 478 | to->cpt_si_fd = from_ptrace.cpt_si_fd; |
| 479 | break; |
| 480 | default: |
| 481 | to->cpt_si_pid = from_ptrace.cpt_si_pid; |
| 482 | to->cpt_si_uid = from_ptrace.cpt_si_uid; |
| 483 | to->cpt_si_ptr = from_ptrace.cpt_si_ptr; |
| 484 | break; |
| 485 | } |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | |
| 490 | |
| 491 | |
| 492 | /* Convert the compatible x32 siginfo into system siginfo. */ |
| 493 | static void |
| 494 | siginfo_from_compat_x32_siginfo (siginfo_t *to, |
| 495 | const compat_x32_siginfo_t *from) |
| 496 | { |
| 497 | ptrace_siginfo_t to_ptrace; |
| 498 | |
| 499 | memset (&to_ptrace, 0, sizeof (to_ptrace)); |
| 500 | to_ptrace.si_signo = from->si_signo; |
| 501 | to_ptrace.si_errno = from->si_errno; |
| 502 | to_ptrace.si_code = from->si_code; |
| 503 | |
| 504 | if (to_ptrace.si_code == SI_TIMER) |
| 505 | { |
| 506 | to_ptrace.cpt_si_timerid = from->cpt_si_timerid; |
| 507 | to_ptrace.cpt_si_overrun = from->cpt_si_overrun; |
| 508 | to_ptrace.cpt_si_ptr = from->cpt_si_ptr; |
| 509 | } |
| 510 | else if (to_ptrace.si_code == SI_USER) |
| 511 | { |
| 512 | to_ptrace.cpt_si_pid = from->cpt_si_pid; |
| 513 | to_ptrace.cpt_si_uid = from->cpt_si_uid; |
| 514 | } |
| 515 | if (to_ptrace.si_code < 0) |
| 516 | { |
| 517 | to_ptrace.cpt_si_pid = from->cpt_si_pid; |
| 518 | to_ptrace.cpt_si_uid = from->cpt_si_uid; |
| 519 | to_ptrace.cpt_si_ptr = from->cpt_si_ptr; |
| 520 | } |
| 521 | else |
| 522 | { |
| 523 | switch (to_ptrace.si_signo) |
| 524 | { |
| 525 | case SIGCHLD: |
| 526 | to_ptrace.cpt_si_pid = from->cpt_si_pid; |
| 527 | to_ptrace.cpt_si_uid = from->cpt_si_uid; |
| 528 | to_ptrace.cpt_si_status = from->cpt_si_status; |
| 529 | memcpy (&to_ptrace.cpt_si_utime, &from->cpt_si_utime, |
| 530 | sizeof (to_ptrace.cpt_si_utime)); |
| 531 | memcpy (&to_ptrace.cpt_si_stime, &from->cpt_si_stime, |
| 532 | sizeof (to_ptrace.cpt_si_stime)); |
| 533 | break; |
| 534 | case SIGILL: |
| 535 | case SIGFPE: |
| 536 | case SIGSEGV: |
| 537 | case SIGBUS: |
| 538 | to_ptrace.cpt_si_addr = from->cpt_si_addr; |
| 539 | break; |
| 540 | case SIGPOLL: |
| 541 | to_ptrace.cpt_si_band = from->cpt_si_band; |
| 542 | to_ptrace.cpt_si_fd = from->cpt_si_fd; |
| 543 | break; |
| 544 | default: |
| 545 | to_ptrace.cpt_si_pid = from->cpt_si_pid; |
| 546 | to_ptrace.cpt_si_uid = from->cpt_si_uid; |
| 547 | to_ptrace.cpt_si_ptr = from->cpt_si_ptr; |
| 548 | break; |
| 549 | } |
| 550 | } |
| 551 | memcpy (to, &to_ptrace, sizeof (to_ptrace)); |
| 552 | } |
| 553 | |
| 554 | /* Convert a ptrace siginfo object, into/from the siginfo in the |
| 555 | layout of the inferiors' architecture. Returns true if any |
| 556 | conversion was done; false otherwise. If DIRECTION is 1, then copy |
| 557 | from INF to PTRACE. If DIRECTION is 0, then copy from NATIVE to |
| 558 | INF. */ |
| 559 | |
| 560 | int |
| 561 | amd64_linux_siginfo_fixup_common (siginfo_t *ptrace, gdb_byte *inf, |
| 562 | int direction, |
| 563 | enum amd64_siginfo_fixup_mode mode) |
| 564 | { |
| 565 | if (mode == FIXUP_32) |
| 566 | { |
| 567 | if (direction == 0) |
| 568 | compat_siginfo_from_siginfo ((struct compat_siginfo *) inf, ptrace); |
| 569 | else |
| 570 | siginfo_from_compat_siginfo (ptrace, (struct compat_siginfo *) inf); |
| 571 | |
| 572 | return 1; |
| 573 | } |
| 574 | else if (mode == FIXUP_X32) |
| 575 | { |
| 576 | if (direction == 0) |
| 577 | compat_x32_siginfo_from_siginfo ((struct compat_x32_siginfo *) inf, |
| 578 | ptrace); |
| 579 | else |
| 580 | siginfo_from_compat_x32_siginfo (ptrace, |
| 581 | (struct compat_x32_siginfo *) inf); |
| 582 | |
| 583 | return 1; |
| 584 | } |
| 585 | return 0; |
| 586 | } |
| 587 | |
| 588 | /* Sanity check for the siginfo structure sizes. */ |
| 589 | |
| 590 | gdb_static_assert (sizeof (siginfo_t) == GDB_SI_SIZE); |
| 591 | #ifndef __ILP32__ |
| 592 | gdb_static_assert (sizeof (nat_siginfo_t) == GDB_SI_SIZE); |
| 593 | #endif |
| 594 | gdb_static_assert (sizeof (compat_x32_siginfo_t) == GDB_SI_SIZE); |
| 595 | gdb_static_assert (sizeof (compat_siginfo_t) == GDB_SI_SIZE); |
| 596 | gdb_static_assert (sizeof (ptrace_siginfo_t) == GDB_SI_SIZE); |