| 1 | #!/bin/bash |
| 2 | |
| 3 | # |
| 4 | # libseccomp syscall validation script |
| 5 | # |
| 6 | # Copyright (c) 2014 Red Hat <pmoore@redhat.com> |
| 7 | # Author: Paul Moore <paul@paul-moore.com> |
| 8 | # |
| 9 | |
| 10 | # |
| 11 | # This library is free software; you can redistribute it and/or modify it |
| 12 | # under the terms of version 2.1 of the GNU Lesser General Public License as |
| 13 | # published by the Free Software Foundation. |
| 14 | # |
| 15 | # This library is distributed in the hope that it will be useful, but WITHOUT |
| 16 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 17 | # FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License |
| 18 | # for more details. |
| 19 | # |
| 20 | # You should have received a copy of the GNU Lesser General Public License |
| 21 | # along with this library; if not, see <http://www.gnu.org/licenses>. |
| 22 | # |
| 23 | |
| 24 | LIB_SYS_DUMP="./arch-syscall-dump" |
| 25 | |
| 26 | #### |
| 27 | # functions |
| 28 | |
| 29 | # |
| 30 | # Dependency check |
| 31 | # |
| 32 | # Arguments: |
| 33 | # 1 Dependency to check for |
| 34 | # |
| 35 | function check_deps() { |
| 36 | [[ -z "$1" ]] && return |
| 37 | which "$1" >& /dev/null |
| 38 | return $? |
| 39 | } |
| 40 | |
| 41 | # |
| 42 | # Dependency verification |
| 43 | # |
| 44 | # Arguments: |
| 45 | # 1 Dependency to check for |
| 46 | # |
| 47 | function verify_deps() { |
| 48 | [[ -z "$1" ]] && return |
| 49 | if ! check_deps "$1"; then |
| 50 | echo "error: install \"$1\" and include it in your \$PATH" |
| 51 | exit 1 |
| 52 | fi |
| 53 | } |
| 54 | |
| 55 | # |
| 56 | # Print out script usage details |
| 57 | # |
| 58 | function usage() { |
| 59 | cat << EOF |
| 60 | usage: arch-syscall-validate [-h] [-a <arch>] <kernel_directory> |
| 61 | |
| 62 | libseccomp syscall validation script |
| 63 | optional arguments: |
| 64 | -h show this help message and exit |
| 65 | -a architecture |
| 66 | -l output the library's syscall definitions |
| 67 | -s output the system's syscall definitions |
| 68 | EOF |
| 69 | } |
| 70 | |
| 71 | # |
| 72 | # Dump the library syscall table for a given architecture |
| 73 | # |
| 74 | # Arguments: |
| 75 | # 1 architecture |
| 76 | # 2 offset (optional) |
| 77 | # |
| 78 | # |
| 79 | # Dump the library's syscall table to stdout. |
| 80 | # |
| 81 | function dump_lib_arch() { |
| 82 | local offset_str="" |
| 83 | |
| 84 | [[ -z $1 ]] && return |
| 85 | |
| 86 | [[ -n $2 ]] && offset_str="-o $2" |
| 87 | $LIB_SYS_DUMP -a $1 $offset_str | sed -e '/[^\t]\+\t-[0-9]\+/d' |
| 88 | } |
| 89 | |
| 90 | # |
| 91 | # Dump the x86 system syscall table |
| 92 | # |
| 93 | # Arguments: |
| 94 | # 1 path to the kernel source |
| 95 | # |
| 96 | # Dump the architecture's syscall table to stdout. |
| 97 | # |
| 98 | function dump_sys_x86() { |
| 99 | cat $1/arch/x86/entry/syscalls/syscall_32.tbl | \ |
| 100 | grep -v "^#" | awk '{ print $3"\t"$1 }' | sed '/^[ \t]*$/d' | \ |
| 101 | sort |
| 102 | } |
| 103 | |
| 104 | # |
| 105 | # Dump the x86 library syscall table |
| 106 | # |
| 107 | # Dump the library's syscall table to stdout. |
| 108 | # |
| 109 | function dump_lib_x86() { |
| 110 | dump_lib_arch x86 |
| 111 | } |
| 112 | |
| 113 | # |
| 114 | # Dump the x86_64 system syscall table |
| 115 | # |
| 116 | # Arguments: |
| 117 | # 1 path to the kernel source |
| 118 | # |
| 119 | # Dump the architecture's syscall table to stdout. |
| 120 | # |
| 121 | function dump_sys_x86_64() { |
| 122 | cat $1/arch/x86/entry/syscalls/syscall_64.tbl | \ |
| 123 | grep -v "^#" | awk '{ print $2,$3,$1 }' | sed -e '/^x32/d' | \ |
| 124 | awk '{ print $2"\t"$3 }' | sed '/^[ \t]*$/d' | sort |
| 125 | } |
| 126 | |
| 127 | # |
| 128 | # Dump the x86_64 library syscall table |
| 129 | # |
| 130 | # Dump the library's syscall table to stdout. |
| 131 | # |
| 132 | function dump_lib_x86_64() { |
| 133 | dump_lib_arch x86_64 |
| 134 | } |
| 135 | |
| 136 | # |
| 137 | # Dump the x32 system syscall table |
| 138 | # |
| 139 | # Arguments: |
| 140 | # 1 path to the kernel source |
| 141 | # |
| 142 | # Dump the architecture's syscall table to stdout. |
| 143 | # |
| 144 | function dump_sys_x32() { |
| 145 | cat $1/arch/x86/entry/syscalls/syscall_64.tbl | \ |
| 146 | grep -v "^#" | awk '{ print $2,$3,$1 }' | sed -e '/^64/d' | \ |
| 147 | awk '{ print $2"\t"$3 }' | sed '/^[ \t]*$/d' | sort |
| 148 | } |
| 149 | |
| 150 | # |
| 151 | # Dump the x32 library syscall table |
| 152 | # |
| 153 | # Dump the library's syscall table to stdout. |
| 154 | # |
| 155 | function dump_lib_x32() { |
| 156 | # 1073741824 == 0x40000000 |
| 157 | dump_lib_arch x32 1073741824 |
| 158 | } |
| 159 | |
| 160 | # |
| 161 | # Dump the arm system syscall table |
| 162 | # |
| 163 | # Arguments: |
| 164 | # 1 path to the kernel source |
| 165 | # |
| 166 | # Dump the architecture's syscall table to stdout. |
| 167 | # |
| 168 | function dump_sys_arm() { |
| 169 | # NOTE: arm_sync_file_range() and sync_file_range2() share values |
| 170 | gcc -E -dM -D__ARM_EABI__ $1/arch/arm/include/uapi/asm/unistd.h | \ |
| 171 | grep "^#define __\(ARM_\)*NR_" | \ |
| 172 | grep -v "^#define __NR_OABI_SYSCALL_BASE" | \ |
| 173 | grep -v "^#define __NR_SYSCALL_BASE" | \ |
| 174 | grep -v "^#define __ARM_NR_BASE" | \ |
| 175 | sed -e 's/#define[ \t]\+__NR_\([^ \t]\+\)[ \t]\+(__NR_SYSCALL_BASE[ \t]*+[ \t]*\([0-9]\+\)).*/\1\t\2/;s/#define[ \t]\+__ARM_NR_\([^ \t]\+\)[ \t]\+(__ARM_NR_BASE[ \t]*+[ \t]*\([0-9]\+\)).*/\1\t983040 + \2/' | \ |
| 176 | while read line; do \ |
| 177 | if echo "$line" | grep -q "+"; then \ |
| 178 | echo "$line" | awk '{ print $1"\t"$2+$4 }'; \ |
| 179 | else \ |
| 180 | echo "$line"; \ |
| 181 | fi; \ |
| 182 | done | \ |
| 183 | sed -e '/#define __NR_sync_file_range2[ \t]\+__NR_arm_sync_file_range/d' | \ |
| 184 | sort |
| 185 | } |
| 186 | |
| 187 | # |
| 188 | # Dump the arm library syscall table |
| 189 | # |
| 190 | # Dump the library's syscall table to stdout. |
| 191 | # |
| 192 | function dump_lib_arm() { |
| 193 | # NOTE: arm_sync_file_range() and sync_file_range2() share values |
| 194 | dump_lib_arch arm | sed -e '/sync_file_range2[ \t]\+341/d' |
| 195 | } |
| 196 | |
| 197 | # |
| 198 | # Dump the aarch64 system syscall table |
| 199 | # |
| 200 | # Arguments: |
| 201 | # 1 path to the kernel source |
| 202 | # |
| 203 | # Dump the architecture's syscall table to stdout. |
| 204 | # |
| 205 | function dump_sys_aarch64() { |
| 206 | gcc -E -dM -I$1/include/uapi -D__BITS_PER_LONG=64 $1/include/uapi/asm-generic/unistd.h | \ |
| 207 | grep "^#define __NR_" | \ |
| 208 | sed -e '/__NR_syscalls/d' | \ |
| 209 | sed -e '/__NR_arch_specific_syscall/d' | \ |
| 210 | sed -e 's/#define[ \t]\+__NR_\([^ \t]\+\)[ \t]\+\(.*\)/\1\t\2/' | \ |
| 211 | sed -e 's/__NR3264_statfs/43/' | \ |
| 212 | sed -e 's/__NR3264_ftruncate/46/' | \ |
| 213 | sed -e 's/__NR3264_truncate/45/' | \ |
| 214 | sed -e 's/__NR3264_lseek/62/' | \ |
| 215 | sed -e 's/__NR3264_sendfile/71/' | \ |
| 216 | sed -e 's/__NR3264_fstatat/79/' | \ |
| 217 | sed -e 's/__NR3264_fstatfs/44/' | \ |
| 218 | sed -e 's/__NR3264_fcntl/25/' | \ |
| 219 | sed -e 's/__NR3264_fadvise64/223/' | \ |
| 220 | sed -e 's/__NR3264_mmap/222/' | \ |
| 221 | sed -e 's/__NR3264_fstat/80/' | \ |
| 222 | sed -e 's/__NR3264_lstat/1039/' | \ |
| 223 | sed -e 's/__NR3264_stat/1038/' | \ |
| 224 | sort |
| 225 | } |
| 226 | |
| 227 | # |
| 228 | # Dump the aarch64 library syscall table |
| 229 | # |
| 230 | # Dump the library's syscall table to stdout. |
| 231 | # |
| 232 | function dump_lib_aarch64() { |
| 233 | dump_lib_arch aarch64 |
| 234 | } |
| 235 | |
| 236 | # |
| 237 | # Dump the mips system syscall table |
| 238 | # |
| 239 | # Arguments: |
| 240 | # 1 path to the kernel source |
| 241 | # |
| 242 | # Dump the architecture's syscall table to stdout. |
| 243 | # |
| 244 | function dump_sys_mips() { |
| 245 | # _MIPS_SIM values: |
| 246 | # _MIPS_SIM_ABI32 == 1 |
| 247 | # _MIPS_SIM_NABI32 == 2 |
| 248 | # _MIPS_SIM_ABI64 == 3 |
| 249 | gcc -E -dM -I$1/arch/mips/include/uapi -D_MIPS_SIM=1 $1/arch/mips/include/uapi/asm/unistd.h | \ |
| 250 | grep "^#define __NR_" | \ |
| 251 | grep -v "^#define __NR_O32_" | \ |
| 252 | grep -v "^#define __NR_N32_" | \ |
| 253 | grep -v "^#define __NR_64_" | \ |
| 254 | grep -v "^#define __NR_Linux" | \ |
| 255 | grep -v "^#define __NR_unused" | \ |
| 256 | grep -v "^#define __NR_reserved" | \ |
| 257 | sed -e 's/#define[ \t]\+__NR_\([^ \t]\+\)[ \t]\+(__NR_Linux[ \t]*+[ \t]*\([0-9]\+\)).*/\1\t\2/' | \ |
| 258 | sort |
| 259 | } |
| 260 | |
| 261 | # |
| 262 | # Dump the mips library syscall table |
| 263 | # |
| 264 | # Dump the library's syscall table to stdout. |
| 265 | # |
| 266 | function dump_lib_mips() { |
| 267 | dump_lib_arch mips 4000 |
| 268 | } |
| 269 | |
| 270 | # |
| 271 | # Dump the mips64 system syscall table |
| 272 | # |
| 273 | # Arguments: |
| 274 | # 1 path to the kernel source |
| 275 | # |
| 276 | # Dump the architecture's syscall table to stdout. |
| 277 | # |
| 278 | function dump_sys_mips64() { |
| 279 | # _MIPS_SIM values: |
| 280 | # _MIPS_SIM_ABI32 == 1 |
| 281 | # _MIPS_SIM_NABI32 == 2 |
| 282 | # _MIPS_SIM_ABI64 == 3 |
| 283 | gcc -E -dM -I$1/arch/mips/include/uapi -D_MIPS_SIM=3 $1/arch/mips/include/uapi/asm/unistd.h | \ |
| 284 | grep "^#define __NR_" | \ |
| 285 | grep -v "^#define __NR_O32_" | \ |
| 286 | grep -v "^#define __NR_N32_" | \ |
| 287 | grep -v "^#define __NR_64_" | \ |
| 288 | grep -v "^#define __NR_Linux" | \ |
| 289 | grep -v "^#define __NR_unused" | \ |
| 290 | grep -v "^#define __NR_reserved" | \ |
| 291 | sed -e 's/#define[ \t]\+__NR_\([^ \t]\+\)[ \t]\+(__NR_Linux[ \t]*+[ \t]*\([0-9]\+\)).*/\1\t\2/' | \ |
| 292 | sort |
| 293 | } |
| 294 | |
| 295 | # |
| 296 | # Dump the mips64 library syscall table |
| 297 | # |
| 298 | # Dump the library's syscall table to stdout. |
| 299 | # |
| 300 | function dump_lib_mips64() { |
| 301 | dump_lib_arch mips64 5000 |
| 302 | } |
| 303 | |
| 304 | # |
| 305 | # Dump the mips64n32 system syscall table |
| 306 | # |
| 307 | # Arguments: |
| 308 | # 1 path to the kernel source |
| 309 | # |
| 310 | # Dump the architecture's syscall table to stdout. |
| 311 | # |
| 312 | function dump_sys_mips64n32() { |
| 313 | # _MIPS_SIM values: |
| 314 | # _MIPS_SIM_ABI32 == 1 |
| 315 | # _MIPS_SIM_NABI32 == 2 |
| 316 | # _MIPS_SIM_ABI64 == 3 |
| 317 | gcc -E -dM -I$1/arch/mips/include/uapi -D_MIPS_SIM=2 $1/arch/mips/include/uapi/asm/unistd.h | \ |
| 318 | grep "^#define __NR_" | \ |
| 319 | grep -v "^#define __NR_O32_" | \ |
| 320 | grep -v "^#define __NR_N32_" | \ |
| 321 | grep -v "^#define __NR_64_" | \ |
| 322 | grep -v "^#define __NR_Linux" | \ |
| 323 | grep -v "^#define __NR_unused" | \ |
| 324 | grep -v "^#define __NR_reserved" | \ |
| 325 | sed -e 's/#define[ \t]\+__NR_\([^ \t]\+\)[ \t]\+(__NR_Linux[ \t]*+[ \t]*\([0-9]\+\)).*/\1\t\2/' | \ |
| 326 | sort |
| 327 | } |
| 328 | |
| 329 | # |
| 330 | # Dump the mips64n32 library syscall table |
| 331 | # |
| 332 | # Dump the library's syscall table to stdout. |
| 333 | # |
| 334 | function dump_lib_mips64n32() { |
| 335 | dump_lib_arch mips64n32 6000 |
| 336 | } |
| 337 | |
| 338 | # |
| 339 | # Dump the ppc system syscall table |
| 340 | # |
| 341 | # Arguments: |
| 342 | # 1 path to the kernel source |
| 343 | # |
| 344 | # Dump the architecture's syscall table to stdout. |
| 345 | # |
| 346 | function dump_sys_ppc() { |
| 347 | gcc -E -dM $1/arch/powerpc/include/uapi/asm/unistd.h | \ |
| 348 | grep "^#define __NR_" | \ |
| 349 | sed -e 's/#define[ \t]\+__NR_\([a-z0-9_]\+\)[ \t]\+\([0-9]\+\)/\1\t\2/' | \ |
| 350 | sort |
| 351 | } |
| 352 | |
| 353 | # |
| 354 | # Dump the ppc library syscall table |
| 355 | # |
| 356 | # Dump the library's syscall table to stdout. |
| 357 | # |
| 358 | function dump_lib_ppc() { |
| 359 | dump_lib_arch ppc |
| 360 | } |
| 361 | |
| 362 | # |
| 363 | # Dump the ppc64 system syscall table |
| 364 | # |
| 365 | # Arguments: |
| 366 | # 1 path to the kernel source |
| 367 | # |
| 368 | # Dump the architecture's syscall table to stdout. |
| 369 | # |
| 370 | function dump_sys_ppc64() { |
| 371 | gcc -E -dM -D__powerpc64__ $1/arch/powerpc/include/uapi/asm/unistd.h | \ |
| 372 | grep "^#define __NR_" | \ |
| 373 | sed -e 's/#define[ \t]\+__NR_\([a-z0-9_]\+\)[ \t]\+\([0-9]\+\)/\1\t\2/' | \ |
| 374 | sort |
| 375 | } |
| 376 | |
| 377 | # |
| 378 | # Dump the ppc64 library syscall table |
| 379 | # |
| 380 | # Dump the library's syscall table to stdout. |
| 381 | # |
| 382 | function dump_lib_ppc64() { |
| 383 | dump_lib_arch ppc64 |
| 384 | } |
| 385 | |
| 386 | # |
| 387 | # Dump the s390 system syscall table |
| 388 | # |
| 389 | # Arguments: |
| 390 | # 1 path to the kernel source |
| 391 | # |
| 392 | # Dump the architecture's syscall table to stdout. |
| 393 | # |
| 394 | function dump_sys_s390() { |
| 395 | gcc -E -dM $1/arch/s390/include/uapi/asm/unistd.h | grep __NR | \ |
| 396 | sed -e 's/#define[ \t]\+__NR_\([^ \t]\+\)[ \t]\+(__NR_timer_create[ \t]*+[ \t]*\([0-9]\+\)).*/\1\t254 + \2/' | \ |
| 397 | while read line; do \ |
| 398 | if echo "$line" | grep -q "+"; then \ |
| 399 | echo "$line" | awk '{ print $1"\t"$2+$4 }'; \ |
| 400 | else \ |
| 401 | echo "$line"; \ |
| 402 | fi; \ |
| 403 | done | \ |
| 404 | sed 's/#define __NR_//g' | sed 's/ /\t/g' | sort |
| 405 | } |
| 406 | |
| 407 | # |
| 408 | # Dump the s390 library syscall table |
| 409 | # |
| 410 | # Dump the library's syscall table to stdout. |
| 411 | # |
| 412 | function dump_lib_s390() { |
| 413 | dump_lib_arch s390 |
| 414 | } |
| 415 | |
| 416 | # |
| 417 | # Dump the s390x system syscall table |
| 418 | # |
| 419 | # Arguments: |
| 420 | # 1 path to the kernel source |
| 421 | # |
| 422 | # Dump the architecture's syscall table to stdout. |
| 423 | # |
| 424 | function dump_sys_s390x() { |
| 425 | gcc -E -dM -D __s390x__ $1/arch/s390/include/uapi/asm/unistd.h | grep __NR | \ |
| 426 | sed -e 's/#define[ \t]\+__NR_\([^ \t]\+\)[ \t]\+(__NR_timer_create[ \t]*+[ \t]*\([0-9]\+\)).*/\1\t254 + \2/' | \ |
| 427 | while read line; do \ |
| 428 | if echo "$line" | grep -q "+"; then \ |
| 429 | echo "$line" | awk '{ print $1"\t"$2+$4 }'; \ |
| 430 | else \ |
| 431 | echo "$line"; \ |
| 432 | fi; \ |
| 433 | done | \ |
| 434 | sed 's/#define __NR_//g' | sed 's/ /\t/g' | sort |
| 435 | } |
| 436 | |
| 437 | # |
| 438 | # Dump the s390x library syscall table |
| 439 | # |
| 440 | # Dump the library's syscall table to stdout. |
| 441 | # |
| 442 | function dump_lib_s390x() { |
| 443 | dump_lib_arch s390x |
| 444 | } |
| 445 | |
| 446 | # |
| 447 | # Dump the system syscall table |
| 448 | # |
| 449 | # Arguments: |
| 450 | # 1 architecture |
| 451 | # 2 path to the kernel source |
| 452 | # |
| 453 | # Dump the system's syscall table to stdout using the given architecture. |
| 454 | # |
| 455 | function dump_sys() { |
| 456 | case $1 in |
| 457 | x86) |
| 458 | dump_sys_x86 "$2" |
| 459 | ;; |
| 460 | x86_64) |
| 461 | dump_sys_x86_64 "$2" |
| 462 | ;; |
| 463 | x32) |
| 464 | dump_sys_x32 "$2" |
| 465 | ;; |
| 466 | arm) |
| 467 | dump_sys_arm "$2" |
| 468 | ;; |
| 469 | aarch64) |
| 470 | dump_sys_aarch64 "$2" |
| 471 | ;; |
| 472 | mips) |
| 473 | dump_sys_mips "$2" |
| 474 | ;; |
| 475 | mips64) |
| 476 | dump_sys_mips64 "$2" |
| 477 | ;; |
| 478 | mips64n32) |
| 479 | dump_sys_mips64n32 "$2" |
| 480 | ;; |
| 481 | ppc) |
| 482 | dump_sys_ppc "$2" |
| 483 | ;; |
| 484 | ppc64) |
| 485 | dump_sys_ppc64 "$2" |
| 486 | ;; |
| 487 | s390) |
| 488 | dump_sys_s390 "$2" |
| 489 | ;; |
| 490 | s390x) |
| 491 | dump_sys_s390x "$2" |
| 492 | ;; |
| 493 | *) |
| 494 | echo "" |
| 495 | return 1 |
| 496 | ;; |
| 497 | esac |
| 498 | |
| 499 | return 0 |
| 500 | } |
| 501 | |
| 502 | # |
| 503 | # Dump the library syscall table |
| 504 | # |
| 505 | # Arguments: |
| 506 | # 1 architecture |
| 507 | # |
| 508 | # Dump the library's syscall table to stdout using the given architecture. |
| 509 | # |
| 510 | function dump_lib() { |
| 511 | case $1 in |
| 512 | x86) |
| 513 | dump_lib_x86 |
| 514 | ;; |
| 515 | x86_64) |
| 516 | dump_lib_x86_64 |
| 517 | ;; |
| 518 | x32) |
| 519 | dump_lib_x32 |
| 520 | ;; |
| 521 | arm) |
| 522 | dump_lib_arm |
| 523 | ;; |
| 524 | aarch64) |
| 525 | dump_lib_aarch64 |
| 526 | ;; |
| 527 | mips) |
| 528 | dump_lib_mips |
| 529 | ;; |
| 530 | mips64) |
| 531 | dump_lib_mips64 |
| 532 | ;; |
| 533 | mips64n32) |
| 534 | dump_lib_mips64n32 |
| 535 | ;; |
| 536 | ppc) |
| 537 | dump_lib_ppc "$2" |
| 538 | ;; |
| 539 | ppc64) |
| 540 | dump_lib_ppc64 "$2" |
| 541 | ;; |
| 542 | s390) |
| 543 | dump_lib_s390 "$2" |
| 544 | ;; |
| 545 | s390x) |
| 546 | dump_lib_s390x "$2" |
| 547 | ;; |
| 548 | *) |
| 549 | echo "" |
| 550 | return 1 |
| 551 | ;; |
| 552 | esac |
| 553 | |
| 554 | return 0 |
| 555 | } |
| 556 | |
| 557 | #### |
| 558 | # main |
| 559 | |
| 560 | verify_deps diff |
| 561 | verify_deps gcc |
| 562 | verify_deps grep |
| 563 | verify_deps mktemp |
| 564 | verify_deps sed |
| 565 | if [[ ! -x $LIB_SYS_DUMP ]]; then |
| 566 | echo "error: \"$LIB_SYS_DUMP\" is not in the current working directory" |
| 567 | exit 1 |
| 568 | fi |
| 569 | |
| 570 | opt_arches="" |
| 571 | opt_sys="" |
| 572 | opt_lib="" |
| 573 | |
| 574 | while getopts "a:slh" opt; do |
| 575 | case $opt in |
| 576 | a) |
| 577 | opt_arches+="$OPTARG " |
| 578 | ;; |
| 579 | s) |
| 580 | opt_sys=1 |
| 581 | opt_lib=0 |
| 582 | ;; |
| 583 | l) |
| 584 | opt_sys=0 |
| 585 | opt_lib=1 |
| 586 | ;; |
| 587 | h|*) |
| 588 | usage |
| 589 | exit 1 |
| 590 | ;; |
| 591 | esac |
| 592 | done |
| 593 | shift $(($OPTIND - 1)) |
| 594 | |
| 595 | # defaults |
| 596 | if [[ $opt_arches == "" ]]; then |
| 597 | opt_arches=" \ |
| 598 | x86 x86_64 x32 \ |
| 599 | arm aarch64 \ |
| 600 | mips mips64 mips64n32 \ |
| 601 | ppc ppc64 \ |
| 602 | s390 s390x" |
| 603 | fi |
| 604 | |
| 605 | # sanity checks |
| 606 | kernel_dir="$1" |
| 607 | if [[ -z $kernel_dir ]]; then |
| 608 | usage |
| 609 | exit 1 |
| 610 | fi |
| 611 | if [[ ! -d $kernel_dir ]]; then |
| 612 | echo "error: \"$1\" is not a valid directory" |
| 613 | exit 1 |
| 614 | fi |
| 615 | |
| 616 | # generate some temp files |
| 617 | tmp_lib=$(mktemp -t syscall_validate_XXXXXX) |
| 618 | tmp_sys=$(mktemp -t syscall_validate_XXXXXX) |
| 619 | |
| 620 | # loop through the architectures and compare |
| 621 | for i in $opt_arches; do |
| 622 | # dump the syscall tables |
| 623 | dump_lib $i > $tmp_lib |
| 624 | if [[ $? -ne 0 ]]; then |
| 625 | echo "error: unknown arch $i" |
| 626 | exit 1 |
| 627 | fi |
| 628 | dump_sys $i "$kernel_dir" > $tmp_sys |
| 629 | if [[ $? -ne 0 ]]; then |
| 630 | echo "error: unknown arch $i" |
| 631 | exit 1 |
| 632 | fi |
| 633 | |
| 634 | if [[ $opt_lib -eq 1 ]]; then |
| 635 | cat $tmp_lib |
| 636 | elif [[ $opt_sys -eq 1 ]]; then |
| 637 | cat $tmp_sys |
| 638 | else |
| 639 | # compare the lib and sys output |
| 640 | diff -u --label="$i [library]" $tmp_lib \ |
| 641 | --label "$i [system]" $tmp_sys |
| 642 | fi |
| 643 | done |
| 644 | |
| 645 | # cleanup and exit |
| 646 | rm -f $tmp_lib $tmp_sys |
| 647 | |
| 648 | exit 0 |