1dnl # 2dnl # Default ZFS kernel configuration 3dnl # 4AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [ 5 AM_COND_IF([BUILD_LINUX], [ 6 dnl # Setup the kernel build environment. 7 ZFS_AC_KERNEL 8 ZFS_AC_QAT 9 10 dnl # Sanity checks for module building and CONFIG_* defines 11 ZFS_AC_KERNEL_CONFIG_DEFINED 12 ZFS_AC_MODULE_SYMVERS 13 14 dnl # Sequential ZFS_LINUX_TRY_COMPILE tests 15 ZFS_AC_KERNEL_FPU_HEADER 16 ZFS_AC_KERNEL_OBJTOOL_HEADER 17 ZFS_AC_KERNEL_WAIT_QUEUE_ENTRY_T 18 ZFS_AC_KERNEL_MISC_MINOR 19 ZFS_AC_KERNEL_DECLARE_EVENT_CLASS 20 21 dnl # Parallel ZFS_LINUX_TEST_SRC / ZFS_LINUX_TEST_RESULT tests 22 ZFS_AC_KERNEL_TEST_SRC 23 ZFS_AC_KERNEL_TEST_RESULT 24 25 AS_IF([test "$LINUX_OBJ" != "$LINUX"], [ 26 KERNEL_MAKE="$KERNEL_MAKE O=$LINUX_OBJ" 27 ]) 28 29 AC_SUBST(KERNEL_MAKE) 30 ]) 31]) 32 33dnl # 34dnl # Generate and compile all of the kernel API test cases to determine 35dnl # which interfaces are available. By invoking the kernel build system 36dnl # only once the compilation can be done in parallel significantly 37dnl # speeding up the process. 38dnl # 39AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [ 40 ZFS_AC_KERNEL_SRC_OBJTOOL 41 ZFS_AC_KERNEL_SRC_GLOBAL_PAGE_STATE 42 ZFS_AC_KERNEL_SRC_ACCESS_OK_TYPE 43 ZFS_AC_KERNEL_SRC_PDE_DATA 44 ZFS_AC_KERNEL_SRC_FALLOCATE 45 ZFS_AC_KERNEL_SRC_FADVISE 46 ZFS_AC_KERNEL_SRC_GENERIC_FADVISE 47 ZFS_AC_KERNEL_SRC_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE 48 ZFS_AC_KERNEL_SRC_RWSEM 49 ZFS_AC_KERNEL_SRC_SCHED 50 ZFS_AC_KERNEL_SRC_USLEEP_RANGE 51 ZFS_AC_KERNEL_SRC_KMEM_CACHE 52 ZFS_AC_KERNEL_SRC_KVMALLOC 53 ZFS_AC_KERNEL_SRC_VMALLOC_PAGE_KERNEL 54 ZFS_AC_KERNEL_SRC_WAIT 55 ZFS_AC_KERNEL_SRC_INODE_TIMES 56 ZFS_AC_KERNEL_SRC_INODE_LOCK 57 ZFS_AC_KERNEL_SRC_GROUP_INFO_GID 58 ZFS_AC_KERNEL_SRC_RW 59 ZFS_AC_KERNEL_SRC_TIMER_SETUP 60 ZFS_AC_KERNEL_SRC_SUPER_USER_NS 61 ZFS_AC_KERNEL_SRC_PROC_OPERATIONS 62 ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS 63 ZFS_AC_KERNEL_SRC_BIO 64 ZFS_AC_KERNEL_SRC_BLKDEV 65 ZFS_AC_KERNEL_SRC_BLK_QUEUE 66 ZFS_AC_KERNEL_SRC_GENHD_FLAGS 67 ZFS_AC_KERNEL_SRC_REVALIDATE_DISK 68 ZFS_AC_KERNEL_SRC_GET_DISK_RO 69 ZFS_AC_KERNEL_SRC_GENERIC_READLINK_GLOBAL 70 ZFS_AC_KERNEL_SRC_DISCARD_GRANULARITY 71 ZFS_AC_KERNEL_SRC_INODE_OWNER_OR_CAPABLE 72 ZFS_AC_KERNEL_SRC_XATTR 73 ZFS_AC_KERNEL_SRC_ACL 74 ZFS_AC_KERNEL_SRC_INODE_SETATTR 75 ZFS_AC_KERNEL_SRC_INODE_GETATTR 76 ZFS_AC_KERNEL_SRC_INODE_SET_FLAGS 77 ZFS_AC_KERNEL_SRC_INODE_SET_IVERSION 78 ZFS_AC_KERNEL_SRC_SHOW_OPTIONS 79 ZFS_AC_KERNEL_SRC_FILE_INODE 80 ZFS_AC_KERNEL_SRC_FILE_DENTRY 81 ZFS_AC_KERNEL_SRC_FSYNC 82 ZFS_AC_KERNEL_SRC_AIO_FSYNC 83 ZFS_AC_KERNEL_SRC_EVICT_INODE 84 ZFS_AC_KERNEL_SRC_DIRTY_INODE 85 ZFS_AC_KERNEL_SRC_SHRINKER 86 ZFS_AC_KERNEL_SRC_MKDIR 87 ZFS_AC_KERNEL_SRC_LOOKUP_FLAGS 88 ZFS_AC_KERNEL_SRC_CREATE 89 ZFS_AC_KERNEL_SRC_PERMISSION 90 ZFS_AC_KERNEL_SRC_GET_LINK 91 ZFS_AC_KERNEL_SRC_PUT_LINK 92 ZFS_AC_KERNEL_SRC_TMPFILE 93 ZFS_AC_KERNEL_SRC_AUTOMOUNT 94 ZFS_AC_KERNEL_SRC_ENCODE_FH_WITH_INODE 95 ZFS_AC_KERNEL_SRC_COMMIT_METADATA 96 ZFS_AC_KERNEL_SRC_CLEAR_INODE 97 ZFS_AC_KERNEL_SRC_SETATTR_PREPARE 98 ZFS_AC_KERNEL_SRC_INSERT_INODE_LOCKED 99 ZFS_AC_KERNEL_SRC_DENTRY 100 ZFS_AC_KERNEL_SRC_DENTRY_ALIAS_D_U 101 ZFS_AC_KERNEL_SRC_TRUNCATE_SETSIZE 102 ZFS_AC_KERNEL_SRC_SECURITY_INODE 103 ZFS_AC_KERNEL_SRC_FST_MOUNT 104 ZFS_AC_KERNEL_SRC_BDI 105 ZFS_AC_KERNEL_SRC_SET_NLINK 106 ZFS_AC_KERNEL_SRC_SGET 107 ZFS_AC_KERNEL_SRC_LSEEK_EXECUTE 108 ZFS_AC_KERNEL_SRC_VFS_FILEMAP_DIRTY_FOLIO 109 ZFS_AC_KERNEL_SRC_VFS_READ_FOLIO 110 ZFS_AC_KERNEL_SRC_VFS_GETATTR 111 ZFS_AC_KERNEL_SRC_VFS_FSYNC_2ARGS 112 ZFS_AC_KERNEL_SRC_VFS_ITERATE 113 ZFS_AC_KERNEL_SRC_VFS_DIRECT_IO 114 ZFS_AC_KERNEL_SRC_VFS_READPAGES 115 ZFS_AC_KERNEL_SRC_VFS_SET_PAGE_DIRTY_NOBUFFERS 116 ZFS_AC_KERNEL_SRC_VFS_RW_ITERATE 117 ZFS_AC_KERNEL_SRC_VFS_GENERIC_WRITE_CHECKS 118 ZFS_AC_KERNEL_SRC_VFS_IOV_ITER 119 ZFS_AC_KERNEL_SRC_KMAP_ATOMIC_ARGS 120 ZFS_AC_KERNEL_SRC_FOLLOW_DOWN_ONE 121 ZFS_AC_KERNEL_SRC_MAKE_REQUEST_FN 122 ZFS_AC_KERNEL_SRC_GENERIC_IO_ACCT 123 ZFS_AC_KERNEL_SRC_FPU 124 ZFS_AC_KERNEL_SRC_FMODE_T 125 ZFS_AC_KERNEL_SRC_KUIDGID_T 126 ZFS_AC_KERNEL_SRC_KUID_HELPERS 127 ZFS_AC_KERNEL_SRC_RENAME 128 ZFS_AC_KERNEL_SRC_CURRENT_TIME 129 ZFS_AC_KERNEL_SRC_USERNS_CAPABILITIES 130 ZFS_AC_KERNEL_SRC_IN_COMPAT_SYSCALL 131 ZFS_AC_KERNEL_SRC_KTIME 132 ZFS_AC_KERNEL_SRC_TOTALRAM_PAGES_FUNC 133 ZFS_AC_KERNEL_SRC_TOTALHIGH_PAGES 134 ZFS_AC_KERNEL_SRC_KSTRTOUL 135 ZFS_AC_KERNEL_SRC_PERCPU 136 ZFS_AC_KERNEL_SRC_CPU_HOTPLUG 137 ZFS_AC_KERNEL_SRC_GENERIC_FILLATTR 138 ZFS_AC_KERNEL_SRC_MKNOD 139 ZFS_AC_KERNEL_SRC_SYMLINK 140 ZFS_AC_KERNEL_SRC_BIO_MAX_SEGS 141 ZFS_AC_KERNEL_SRC_SIGNAL_STOP 142 ZFS_AC_KERNEL_SRC_SIGINFO 143 ZFS_AC_KERNEL_SRC_SYSFS 144 ZFS_AC_KERNEL_SRC_SET_SPECIAL_STATE 145 ZFS_AC_KERNEL_SRC_STANDALONE_LINUX_STDARG 146 ZFS_AC_KERNEL_SRC_PAGEMAP_FOLIO_WAIT_BIT 147 ZFS_AC_KERNEL_SRC_ADD_DISK 148 ZFS_AC_KERNEL_SRC_KTHREAD 149 ZFS_AC_KERNEL_SRC_ZERO_PAGE 150 ZFS_AC_KERNEL_SRC___COPY_FROM_USER_INATOMIC 151 ZFS_AC_KERNEL_SRC_USER_NS_COMMON_INUM 152 ZFS_AC_KERNEL_SRC_IDMAP_MNT_API 153 ZFS_AC_KERNEL_SRC_IATTR_VFSID 154 ZFS_AC_KERNEL_SRC_FILEMAP 155 ZFS_AC_KERNEL_SRC_WRITEPAGE_T 156 case "$host_cpu" in 157 powerpc*) 158 ZFS_AC_KERNEL_SRC_CPU_HAS_FEATURE 159 ZFS_AC_KERNEL_SRC_FLUSH_DCACHE_PAGE 160 ;; 161 esac 162 163 AC_MSG_CHECKING([for available kernel interfaces]) 164 ZFS_LINUX_TEST_COMPILE_ALL([kabi]) 165 AC_MSG_RESULT([done]) 166]) 167 168dnl # 169dnl # Check results of kernel interface tests. 170dnl # 171AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [ 172 ZFS_AC_KERNEL_ACCESS_OK_TYPE 173 ZFS_AC_KERNEL_GLOBAL_PAGE_STATE 174 ZFS_AC_KERNEL_OBJTOOL 175 ZFS_AC_KERNEL_PDE_DATA 176 ZFS_AC_KERNEL_FALLOCATE 177 ZFS_AC_KERNEL_FADVISE 178 ZFS_AC_KERNEL_GENERIC_FADVISE 179 ZFS_AC_KERNEL_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE 180 ZFS_AC_KERNEL_RWSEM 181 ZFS_AC_KERNEL_SCHED 182 ZFS_AC_KERNEL_USLEEP_RANGE 183 ZFS_AC_KERNEL_KMEM_CACHE 184 ZFS_AC_KERNEL_KVMALLOC 185 ZFS_AC_KERNEL_VMALLOC_PAGE_KERNEL 186 ZFS_AC_KERNEL_WAIT 187 ZFS_AC_KERNEL_INODE_TIMES 188 ZFS_AC_KERNEL_INODE_LOCK 189 ZFS_AC_KERNEL_GROUP_INFO_GID 190 ZFS_AC_KERNEL_RW 191 ZFS_AC_KERNEL_TIMER_SETUP 192 ZFS_AC_KERNEL_SUPER_USER_NS 193 ZFS_AC_KERNEL_PROC_OPERATIONS 194 ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS 195 ZFS_AC_KERNEL_BIO 196 ZFS_AC_KERNEL_BLKDEV 197 ZFS_AC_KERNEL_BLK_QUEUE 198 ZFS_AC_KERNEL_GENHD_FLAGS 199 ZFS_AC_KERNEL_REVALIDATE_DISK 200 ZFS_AC_KERNEL_GET_DISK_RO 201 ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL 202 ZFS_AC_KERNEL_DISCARD_GRANULARITY 203 ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE 204 ZFS_AC_KERNEL_XATTR 205 ZFS_AC_KERNEL_ACL 206 ZFS_AC_KERNEL_INODE_SETATTR 207 ZFS_AC_KERNEL_INODE_GETATTR 208 ZFS_AC_KERNEL_INODE_SET_FLAGS 209 ZFS_AC_KERNEL_INODE_SET_IVERSION 210 ZFS_AC_KERNEL_SHOW_OPTIONS 211 ZFS_AC_KERNEL_FILE_INODE 212 ZFS_AC_KERNEL_FILE_DENTRY 213 ZFS_AC_KERNEL_FSYNC 214 ZFS_AC_KERNEL_AIO_FSYNC 215 ZFS_AC_KERNEL_EVICT_INODE 216 ZFS_AC_KERNEL_DIRTY_INODE 217 ZFS_AC_KERNEL_SHRINKER 218 ZFS_AC_KERNEL_MKDIR 219 ZFS_AC_KERNEL_LOOKUP_FLAGS 220 ZFS_AC_KERNEL_CREATE 221 ZFS_AC_KERNEL_PERMISSION 222 ZFS_AC_KERNEL_GET_LINK 223 ZFS_AC_KERNEL_PUT_LINK 224 ZFS_AC_KERNEL_TMPFILE 225 ZFS_AC_KERNEL_AUTOMOUNT 226 ZFS_AC_KERNEL_ENCODE_FH_WITH_INODE 227 ZFS_AC_KERNEL_COMMIT_METADATA 228 ZFS_AC_KERNEL_CLEAR_INODE 229 ZFS_AC_KERNEL_SETATTR_PREPARE 230 ZFS_AC_KERNEL_INSERT_INODE_LOCKED 231 ZFS_AC_KERNEL_DENTRY 232 ZFS_AC_KERNEL_DENTRY_ALIAS_D_U 233 ZFS_AC_KERNEL_TRUNCATE_SETSIZE 234 ZFS_AC_KERNEL_SECURITY_INODE 235 ZFS_AC_KERNEL_FST_MOUNT 236 ZFS_AC_KERNEL_BDI 237 ZFS_AC_KERNEL_SET_NLINK 238 ZFS_AC_KERNEL_SGET 239 ZFS_AC_KERNEL_LSEEK_EXECUTE 240 ZFS_AC_KERNEL_VFS_FILEMAP_DIRTY_FOLIO 241 ZFS_AC_KERNEL_VFS_READ_FOLIO 242 ZFS_AC_KERNEL_VFS_GETATTR 243 ZFS_AC_KERNEL_VFS_FSYNC_2ARGS 244 ZFS_AC_KERNEL_VFS_ITERATE 245 ZFS_AC_KERNEL_VFS_DIRECT_IO 246 ZFS_AC_KERNEL_VFS_READPAGES 247 ZFS_AC_KERNEL_VFS_SET_PAGE_DIRTY_NOBUFFERS 248 ZFS_AC_KERNEL_VFS_RW_ITERATE 249 ZFS_AC_KERNEL_VFS_GENERIC_WRITE_CHECKS 250 ZFS_AC_KERNEL_VFS_IOV_ITER 251 ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS 252 ZFS_AC_KERNEL_FOLLOW_DOWN_ONE 253 ZFS_AC_KERNEL_MAKE_REQUEST_FN 254 ZFS_AC_KERNEL_GENERIC_IO_ACCT 255 ZFS_AC_KERNEL_FPU 256 ZFS_AC_KERNEL_FMODE_T 257 ZFS_AC_KERNEL_KUIDGID_T 258 ZFS_AC_KERNEL_KUID_HELPERS 259 ZFS_AC_KERNEL_RENAME 260 ZFS_AC_KERNEL_CURRENT_TIME 261 ZFS_AC_KERNEL_USERNS_CAPABILITIES 262 ZFS_AC_KERNEL_IN_COMPAT_SYSCALL 263 ZFS_AC_KERNEL_KTIME 264 ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC 265 ZFS_AC_KERNEL_TOTALHIGH_PAGES 266 ZFS_AC_KERNEL_KSTRTOUL 267 ZFS_AC_KERNEL_PERCPU 268 ZFS_AC_KERNEL_CPU_HOTPLUG 269 ZFS_AC_KERNEL_GENERIC_FILLATTR 270 ZFS_AC_KERNEL_MKNOD 271 ZFS_AC_KERNEL_SYMLINK 272 ZFS_AC_KERNEL_BIO_MAX_SEGS 273 ZFS_AC_KERNEL_SIGNAL_STOP 274 ZFS_AC_KERNEL_SIGINFO 275 ZFS_AC_KERNEL_SYSFS 276 ZFS_AC_KERNEL_SET_SPECIAL_STATE 277 ZFS_AC_KERNEL_STANDALONE_LINUX_STDARG 278 ZFS_AC_KERNEL_PAGEMAP_FOLIO_WAIT_BIT 279 ZFS_AC_KERNEL_ADD_DISK 280 ZFS_AC_KERNEL_KTHREAD 281 ZFS_AC_KERNEL_ZERO_PAGE 282 ZFS_AC_KERNEL___COPY_FROM_USER_INATOMIC 283 ZFS_AC_KERNEL_USER_NS_COMMON_INUM 284 ZFS_AC_KERNEL_IDMAP_MNT_API 285 ZFS_AC_KERNEL_IATTR_VFSID 286 ZFS_AC_KERNEL_FILEMAP 287 ZFS_AC_KERNEL_WRITEPAGE_T 288 case "$host_cpu" in 289 powerpc*) 290 ZFS_AC_KERNEL_CPU_HAS_FEATURE 291 ZFS_AC_KERNEL_FLUSH_DCACHE_PAGE 292 ;; 293 esac 294]) 295 296dnl # 297dnl # Detect name used for Module.symvers file in kernel 298dnl # 299AC_DEFUN([ZFS_AC_MODULE_SYMVERS], [ 300 modpost=$LINUX/scripts/Makefile.modpost 301 AC_MSG_CHECKING([kernel file name for module symbols]) 302 AS_IF([test "x$enable_linux_builtin" != xyes -a -f "$modpost"], [ 303 AS_IF([grep -q Modules.symvers $modpost], [ 304 LINUX_SYMBOLS=Modules.symvers 305 ], [ 306 LINUX_SYMBOLS=Module.symvers 307 ]) 308 309 AS_IF([test ! -f "$LINUX_OBJ/$LINUX_SYMBOLS"], [ 310 AC_MSG_ERROR([ 311 *** Please make sure the kernel devel package for your distribution 312 *** is installed. If you are building with a custom kernel, make sure 313 *** the kernel is configured, built, and the '--with-linux=PATH' 314 *** configure option refers to the location of the kernel source. 315 ]) 316 ]) 317 ], [ 318 LINUX_SYMBOLS=NONE 319 ]) 320 AC_MSG_RESULT($LINUX_SYMBOLS) 321 AC_SUBST(LINUX_SYMBOLS) 322]) 323 324dnl # 325dnl # Detect the kernel to be built against 326dnl # 327dnl # Most modern Linux distributions have separate locations for bare 328dnl # source (source) and prebuilt (build) files. Additionally, there are 329dnl # `source` and `build` symlinks in `/lib/modules/$(KERNEL_VERSION)` 330dnl # pointing to them. The directory search order is now: 331dnl # 332dnl # - `configure` command line values if both `--with-linux` and 333dnl # `--with-linux-obj` were defined 334dnl # 335dnl # - If only `--with-linux` was defined, `--with-linux-obj` is assumed 336dnl # to have the same value as `--with-linux` 337dnl # 338dnl # - If neither `--with-linux` nor `--with-linux-obj` were defined 339dnl # autodetection is used: 340dnl # 341dnl # - `/lib/modules/$(uname -r)/{source,build}` respectively, if exist. 342dnl # 343dnl # - If only `/lib/modules/$(uname -r)/build` exists, it is assumed 344dnl # to be both source and build directory. 345dnl # 346dnl # - The first directory in `/lib/modules` with the highest version 347dnl # number according to `sort -V` which contains both `source` and 348dnl # `build` symlinks/directories. If module directory contains only 349dnl # `build` component, it is assumed to be both source and build 350dnl # directory. 351dnl # 352dnl # - Last resort: the first directory matching `/usr/src/kernels/*` 353dnl # and `/usr/src/linux-*` with the highest version number according 354dnl # to `sort -V` is assumed to be both source and build directory. 355dnl # 356AC_DEFUN([ZFS_AC_KERNEL], [ 357 AC_ARG_WITH([linux], 358 AS_HELP_STRING([--with-linux=PATH], 359 [Path to kernel source]), 360 [kernelsrc="$withval"]) 361 362 AC_ARG_WITH(linux-obj, 363 AS_HELP_STRING([--with-linux-obj=PATH], 364 [Path to kernel build objects]), 365 [kernelbuild="$withval"]) 366 367 AC_MSG_CHECKING([kernel source and build directories]) 368 AS_IF([test -n "$kernelsrc" && test -z "$kernelbuild"], [ 369 kernelbuild="$kernelsrc" 370 ], [test -z "$kernelsrc"], [ 371 AS_IF([test -e "/lib/modules/$(uname -r)/source" && \ 372 test -e "/lib/modules/$(uname -r)/build"], [ 373 src="/lib/modules/$(uname -r)/source" 374 build="/lib/modules/$(uname -r)/build" 375 ], [test -e "/lib/modules/$(uname -r)/build"], [ 376 build="/lib/modules/$(uname -r)/build" 377 src="$build" 378 ], [ 379 src= 380 381 for d in $(ls -1d /lib/modules/* 2>/dev/null | sort -Vr); do 382 if test -e "$d/source" && test -e "$d/build"; then 383 src="$d/source" 384 build="$d/build" 385 break 386 fi 387 388 if test -e "$d/build"; then 389 src="$d/build" 390 build="$d/build" 391 break 392 fi 393 done 394 395 # the least reliable method 396 if test -z "$src"; then 397 src=$(ls -1d /usr/src/kernels/* /usr/src/linux-* \ 398 2>/dev/null | grep -v obj | sort -Vr | head -1) 399 build="$src" 400 fi 401 ]) 402 403 AS_IF([test -n "$src" && test -e "$src"], [ 404 kernelsrc=$(readlink -e "$src") 405 ], [ 406 kernelsrc="[Not found]" 407 ]) 408 AS_IF([test -n "$build" && test -e "$build"], [ 409 kernelbuild=$(readlink -e "$build") 410 ], [ 411 kernelbuild="[Not found]" 412 ]) 413 ], [ 414 AS_IF([test "$kernelsrc" = "NONE"], [ 415 kernsrcver=NONE 416 ]) 417 withlinux=yes 418 ]) 419 420 AC_MSG_RESULT([done]) 421 AC_MSG_CHECKING([kernel source directory]) 422 AC_MSG_RESULT([$kernelsrc]) 423 AC_MSG_CHECKING([kernel build directory]) 424 AC_MSG_RESULT([$kernelbuild]) 425 AS_IF([test ! -d "$kernelsrc" || test ! -d "$kernelbuild"], [ 426 AC_MSG_ERROR([ 427 *** Please make sure the kernel devel package for your distribution 428 *** is installed and then try again. If that fails, you can specify the 429 *** location of the kernel source and build with the '--with-linux=PATH' and 430 *** '--with-linux-obj=PATH' options respectively.]) 431 ]) 432 433 AC_MSG_CHECKING([kernel source version]) 434 utsrelease1=$kernelbuild/include/linux/version.h 435 utsrelease2=$kernelbuild/include/linux/utsrelease.h 436 utsrelease3=$kernelbuild/include/generated/utsrelease.h 437 AS_IF([test -r $utsrelease1 && grep -qF UTS_RELEASE $utsrelease1], [ 438 utsrelease=$utsrelease1 439 ], [test -r $utsrelease2 && grep -qF UTS_RELEASE $utsrelease2], [ 440 utsrelease=$utsrelease2 441 ], [test -r $utsrelease3 && grep -qF UTS_RELEASE $utsrelease3], [ 442 utsrelease=$utsrelease3 443 ]) 444 445 AS_IF([test -n "$utsrelease"], [ 446 kernsrcver=$($AWK '/UTS_RELEASE/ { gsub(/"/, "", $[3]); print $[3] }' $utsrelease) 447 AS_IF([test -z "$kernsrcver"], [ 448 AC_MSG_RESULT([Not found]) 449 AC_MSG_ERROR([ 450 *** Cannot determine kernel version. 451 ]) 452 ]) 453 ], [ 454 AC_MSG_RESULT([Not found]) 455 if test "x$enable_linux_builtin" != xyes; then 456 AC_MSG_ERROR([ 457 *** Cannot find UTS_RELEASE definition. 458 ]) 459 else 460 AC_MSG_ERROR([ 461 *** Cannot find UTS_RELEASE definition. 462 *** Please run 'make prepare' inside the kernel source tree.]) 463 fi 464 ]) 465 466 AC_MSG_RESULT([$kernsrcver]) 467 468 AS_VERSION_COMPARE([$kernsrcver], [$ZFS_META_KVER_MIN], [ 469 AC_MSG_ERROR([ 470 *** Cannot build against kernel version $kernsrcver. 471 *** The minimum supported kernel version is $ZFS_META_KVER_MIN. 472 ]) 473 ]) 474 475 LINUX=${kernelsrc} 476 LINUX_OBJ=${kernelbuild} 477 LINUX_VERSION=${kernsrcver} 478 479 AC_SUBST(LINUX) 480 AC_SUBST(LINUX_OBJ) 481 AC_SUBST(LINUX_VERSION) 482]) 483 484dnl # 485dnl # Detect the QAT module to be built against, QAT provides hardware 486dnl # acceleration for data compression: 487dnl # 488dnl # https://01.org/intel-quickassist-technology 489dnl # 490dnl # 1) Download and install QAT driver from the above link 491dnl # 2) Start QAT driver in your system: 492dnl # service qat_service start 493dnl # 3) Enable QAT in ZFS, e.g.: 494dnl # ./configure --with-qat=<qat-driver-path>/QAT1.6 495dnl # make 496dnl # 4) Set GZIP compression in ZFS dataset: 497dnl # zfs set compression = gzip <dataset> 498dnl # 499dnl # Then the data written to this ZFS pool is compressed by QAT accelerator 500dnl # automatically, and de-compressed by QAT when read from the pool. 501dnl # 502dnl # 1) Get QAT hardware statistics with: 503dnl # cat /proc/icp_dh895xcc_dev/qat 504dnl # 2) To disable QAT: 505dnl # insmod zfs.ko zfs_qat_disable=1 506dnl # 507AC_DEFUN([ZFS_AC_QAT], [ 508 AC_ARG_WITH([qat], 509 AS_HELP_STRING([--with-qat=PATH], 510 [Path to qat source]), 511 AS_IF([test "$withval" = "yes"], 512 AC_MSG_ERROR([--with-qat=PATH requires a PATH]), 513 [qatsrc="$withval"])) 514 515 AC_ARG_WITH([qat-obj], 516 AS_HELP_STRING([--with-qat-obj=PATH], 517 [Path to qat build objects]), 518 [qatbuild="$withval"]) 519 520 AS_IF([test ! -z "${qatsrc}"], [ 521 AC_MSG_CHECKING([qat source directory]) 522 AC_MSG_RESULT([$qatsrc]) 523 QAT_SRC="${qatsrc}/quickassist" 524 AS_IF([ test ! -e "$QAT_SRC/include/cpa.h"], [ 525 AC_MSG_ERROR([ 526 *** Please make sure the qat driver package is installed 527 *** and specify the location of the qat source with the 528 *** '--with-qat=PATH' option then try again. Failed to 529 *** find cpa.h in: 530 ${QAT_SRC}/include]) 531 ]) 532 ]) 533 534 AS_IF([test ! -z "${qatsrc}"], [ 535 AC_MSG_CHECKING([qat build directory]) 536 AS_IF([test -z "$qatbuild"], [ 537 qatbuild="${qatsrc}/build" 538 ]) 539 540 AC_MSG_RESULT([$qatbuild]) 541 QAT_OBJ=${qatbuild} 542 AS_IF([ ! test -e "$QAT_OBJ/icp_qa_al.ko" && ! test -e "$QAT_OBJ/qat_api.ko"], [ 543 AC_MSG_ERROR([ 544 *** Please make sure the qat driver is installed then try again. 545 *** Failed to find icp_qa_al.ko or qat_api.ko in: 546 $QAT_OBJ]) 547 ]) 548 549 AC_SUBST(QAT_SRC) 550 AC_SUBST(QAT_OBJ) 551 552 AC_DEFINE(HAVE_QAT, 1, 553 [qat is enabled and existed]) 554 ]) 555 556 dnl # 557 dnl # Detect the name used for the QAT Module.symvers file. 558 dnl # 559 AS_IF([test ! -z "${qatsrc}"], [ 560 AC_MSG_CHECKING([qat file for module symbols]) 561 QAT_SYMBOLS=$QAT_SRC/lookaside/access_layer/src/Module.symvers 562 563 AS_IF([test -r $QAT_SYMBOLS], [ 564 AC_MSG_RESULT([$QAT_SYMBOLS]) 565 AC_SUBST(QAT_SYMBOLS) 566 ],[ 567 AC_MSG_ERROR([ 568 *** Please make sure the qat driver is installed then try again. 569 *** Failed to find Module.symvers in: 570 $QAT_SYMBOLS 571 ]) 572 ]) 573 ]) 574]) 575 576dnl # 577dnl # ZFS_LINUX_CONFTEST_H 578dnl # 579AC_DEFUN([ZFS_LINUX_CONFTEST_H], [ 580test -d build/$2 || mkdir -p build/$2 581cat - <<_ACEOF >build/$2/$2.h 582$1 583_ACEOF 584]) 585 586dnl # 587dnl # ZFS_LINUX_CONFTEST_C 588dnl # 589AC_DEFUN([ZFS_LINUX_CONFTEST_C], [ 590test -d build/$2 || mkdir -p build/$2 591cat confdefs.h - <<_ACEOF >build/$2/$2.c 592$1 593_ACEOF 594]) 595 596dnl # 597dnl # ZFS_LINUX_CONFTEST_MAKEFILE 598dnl # 599dnl # $1 - test case name 600dnl # $2 - add to top-level Makefile 601dnl # $3 - additional build flags 602dnl # 603AC_DEFUN([ZFS_LINUX_CONFTEST_MAKEFILE], [ 604 test -d build || mkdir -p build 605 test -d build/$1 || mkdir -p build/$1 606 607 file=build/$1/Makefile 608 609 dnl # Example command line to manually build source. 610 cat - <<_ACEOF >$file 611# Example command line to manually build source 612# make modules -C $LINUX_OBJ $ARCH_UM M=$PWD/build/$1 613 614ccflags-y := -Werror $FRAME_LARGER_THAN 615_ACEOF 616 617 dnl # Additional custom CFLAGS as requested. 618 m4_ifval($3, [echo "ccflags-y += $3" >>$file], []) 619 620 dnl # Test case source 621 echo "obj-m := $1.o" >>$file 622 623 AS_IF([test "x$2" = "xyes"], [echo "obj-m += $1/" >>build/Makefile], []) 624]) 625 626dnl # 627dnl # ZFS_LINUX_TEST_PROGRAM(C)([PROLOGUE], [BODY]) 628dnl # 629m4_define([ZFS_LINUX_TEST_PROGRAM], [ 630#include <linux/module.h> 631$1 632 633int 634main (void) 635{ 636$2 637 ; 638 return 0; 639} 640 641MODULE_DESCRIPTION("conftest"); 642MODULE_AUTHOR(ZFS_META_AUTHOR); 643MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); 644MODULE_LICENSE($3); 645]) 646 647dnl # 648dnl # ZFS_LINUX_TEST_REMOVE 649dnl # 650dnl # Removes the specified test source and results. 651dnl # 652AC_DEFUN([ZFS_LINUX_TEST_REMOVE], [ 653 test -d build/$1 && rm -Rf build/$1 654 test -f build/Makefile && sed '/$1/d' build/Makefile 655]) 656 657dnl # 658dnl # ZFS_LINUX_COMPILE 659dnl # 660dnl # $1 - build dir 661dnl # $2 - test command 662dnl # $3 - pass command 663dnl # $4 - fail command 664dnl # $5 - set KBUILD_MODPOST_NOFINAL='yes' 665dnl # $6 - set KBUILD_MODPOST_WARN='yes' 666dnl # 667dnl # Used internally by ZFS_LINUX_TEST_{COMPILE,MODPOST} 668dnl # 669AC_DEFUN([ZFS_LINUX_COMPILE], [ 670 AC_ARG_VAR([KERNEL_CC], [C compiler for 671 building kernel modules]) 672 AC_ARG_VAR([KERNEL_LD], [Linker for 673 building kernel modules]) 674 AC_ARG_VAR([KERNEL_LLVM], [Binary option to 675 build kernel modules with LLVM/CLANG toolchain]) 676 AC_TRY_COMMAND([ 677 KBUILD_MODPOST_NOFINAL="$5" KBUILD_MODPOST_WARN="$6" 678 make modules -k -j$TEST_JOBS ${KERNEL_CC:+CC=$KERNEL_CC} 679 ${KERNEL_LD:+LD=$KERNEL_LD} ${KERNEL_LLVM:+LLVM=$KERNEL_LLVM} 680 CONFIG_MODULES=y CFLAGS_MODULE=-DCONFIG_MODULES 681 -C $LINUX_OBJ $ARCH_UM M=$PWD/$1 >$1/build.log 2>&1]) 682 AS_IF([AC_TRY_COMMAND([$2])], [$3], [$4]) 683]) 684 685dnl # 686dnl # ZFS_LINUX_TEST_COMPILE 687dnl # 688dnl # Perform a full compile excluding the final modpost phase. 689dnl # 690AC_DEFUN([ZFS_LINUX_TEST_COMPILE], [ 691 ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [ 692 mv $2/Makefile $2/Makefile.compile.$1 693 mv $2/build.log $2/build.log.$1 694 ],[ 695 AC_MSG_ERROR([ 696 *** Unable to compile test source to determine kernel interfaces.]) 697 ], [yes], []) 698]) 699 700dnl # 701dnl # ZFS_LINUX_TEST_MODPOST 702dnl # 703dnl # Perform a full compile including the modpost phase. This may 704dnl # be an incremental build if the objects have already been built. 705dnl # 706AC_DEFUN([ZFS_LINUX_TEST_MODPOST], [ 707 ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [ 708 mv $2/Makefile $2/Makefile.modpost.$1 709 cat $2/build.log >>build/build.log.$1 710 ],[ 711 AC_MSG_ERROR([ 712 *** Unable to modpost test source to determine kernel interfaces.]) 713 ], [], [yes]) 714]) 715 716dnl # 717dnl # Perform the compilation of the test cases in two phases. 718dnl # 719dnl # Phase 1) attempt to build the object files for all of the tests 720dnl # defined by the ZFS_LINUX_TEST_SRC macro. But do not 721dnl # perform the final modpost stage. 722dnl # 723dnl # Phase 2) disable all tests which failed the initial compilation, 724dnl # then invoke the final modpost step for the remaining tests. 725dnl # 726dnl # This allows us efficiently build the test cases in parallel while 727dnl # remaining resilient to build failures which are expected when 728dnl # detecting the available kernel interfaces. 729dnl # 730dnl # The maximum allowed parallelism can be controlled by setting the 731dnl # TEST_JOBS environment variable. Otherwise, it default to $(nproc). 732dnl # 733AC_DEFUN([ZFS_LINUX_TEST_COMPILE_ALL], [ 734 dnl # Phase 1 - Compilation only, final linking is skipped. 735 ZFS_LINUX_TEST_COMPILE([$1], [build]) 736 737 dnl # 738 dnl # Phase 2 - When building external modules disable test cases 739 dnl # which failed to compile and invoke modpost to verify the 740 dnl # final linking. 741 dnl # 742 dnl # Test names suffixed with '_license' call modpost independently 743 dnl # to ensure that a single incompatibility does not result in the 744 dnl # modpost phase exiting early. This check is not performed on 745 dnl # every symbol since the majority are compatible and doing so 746 dnl # would significantly slow down this phase. 747 dnl # 748 dnl # When configuring for builtin (--enable-linux-builtin) 749 dnl # fake the linking step artificially create the expected .ko 750 dnl # files for tests which did compile. This is required for 751 dnl # kernels which do not have loadable module support or have 752 dnl # not yet been built. 753 dnl # 754 AS_IF([test "x$enable_linux_builtin" = "xno"], [ 755 for dir in $(awk '/^obj-m/ { print [$]3 }' \ 756 build/Makefile.compile.$1); do 757 name=${dir%/} 758 AS_IF([test -f build/$name/$name.o], [ 759 AS_IF([test "${name##*_}" = "license"], [ 760 ZFS_LINUX_TEST_MODPOST([$1], 761 [build/$name]) 762 echo "obj-n += $dir" >>build/Makefile 763 ], [ 764 echo "obj-m += $dir" >>build/Makefile 765 ]) 766 ], [ 767 echo "obj-n += $dir" >>build/Makefile 768 ]) 769 done 770 771 ZFS_LINUX_TEST_MODPOST([$1], [build]) 772 ], [ 773 for dir in $(awk '/^obj-m/ { print [$]3 }' \ 774 build/Makefile.compile.$1); do 775 name=${dir%/} 776 AS_IF([test -f build/$name/$name.o], [ 777 touch build/$name/$name.ko 778 ]) 779 done 780 ]) 781]) 782 783dnl # 784dnl # ZFS_LINUX_TEST_SRC 785dnl # 786dnl # $1 - name 787dnl # $2 - global 788dnl # $3 - source 789dnl # $4 - extra cflags 790dnl # $5 - check license-compatibility 791dnl # 792dnl # Check if the test source is buildable at all and then if it is 793dnl # license compatible. 794dnl # 795dnl # N.B because all of the test cases are compiled in parallel they 796dnl # must never depend on the results of previous tests. Each test 797dnl # needs to be entirely independent. 798dnl # 799AC_DEFUN([ZFS_LINUX_TEST_SRC], [ 800 ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM([[$2]], [[$3]], 801 [["Dual BSD/GPL"]])], [$1]) 802 ZFS_LINUX_CONFTEST_MAKEFILE([$1], [yes], [$4]) 803 804 AS_IF([ test -n "$5" ], [ 805 ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM( 806 [[$2]], [[$3]], [[$5]])], [$1_license]) 807 ZFS_LINUX_CONFTEST_MAKEFILE([$1_license], [yes], [$4]) 808 ]) 809]) 810 811dnl # 812dnl # ZFS_LINUX_TEST_RESULT 813dnl # 814dnl # $1 - name of a test source (ZFS_LINUX_TEST_SRC) 815dnl # $2 - run on success (valid .ko generated) 816dnl # $3 - run on failure (unable to compile) 817dnl # 818AC_DEFUN([ZFS_LINUX_TEST_RESULT], [ 819 AS_IF([test -d build/$1], [ 820 AS_IF([test -f build/$1/$1.ko], [$2], [$3]) 821 ], [ 822 AC_MSG_ERROR([ 823 *** No matching source for the "$1" test, check that 824 *** both the test source and result macros refer to the same name. 825 ]) 826 ]) 827]) 828 829dnl # 830dnl # ZFS_LINUX_TEST_ERROR 831dnl # 832dnl # Generic error message which can be used when none of the expected 833dnl # kernel interfaces were detected. 834dnl # 835AC_DEFUN([ZFS_LINUX_TEST_ERROR], [ 836 AC_MSG_ERROR([ 837 *** None of the expected "$1" interfaces were detected. 838 *** This may be because your kernel version is newer than what is 839 *** supported, or you are using a patched custom kernel with 840 *** incompatible modifications. 841 *** 842 *** ZFS Version: $ZFS_META_ALIAS 843 *** Compatible Kernels: $ZFS_META_KVER_MIN - $ZFS_META_KVER_MAX 844 ]) 845]) 846 847dnl # 848dnl # ZFS_LINUX_TEST_RESULT_SYMBOL 849dnl # 850dnl # Like ZFS_LINUX_TEST_RESULT except ZFS_CHECK_SYMBOL_EXPORT is called to 851dnl # verify symbol exports, unless --enable-linux-builtin was provided to 852dnl # configure. 853dnl # 854AC_DEFUN([ZFS_LINUX_TEST_RESULT_SYMBOL], [ 855 AS_IF([ ! test -f build/$1/$1.ko], [ 856 $5 857 ], [ 858 AS_IF([test "x$enable_linux_builtin" != "xyes"], [ 859 ZFS_CHECK_SYMBOL_EXPORT([$2], [$3], [$4], [$5]) 860 ], [ 861 $4 862 ]) 863 ]) 864]) 865 866dnl # 867dnl # ZFS_LINUX_COMPILE_IFELSE 868dnl # 869AC_DEFUN([ZFS_LINUX_COMPILE_IFELSE], [ 870 ZFS_LINUX_TEST_REMOVE([conftest]) 871 872 m4_ifvaln([$1], [ZFS_LINUX_CONFTEST_C([$1], [conftest])]) 873 m4_ifvaln([$5], [ZFS_LINUX_CONFTEST_H([$5], [conftest])], 874 [ZFS_LINUX_CONFTEST_H([], [conftest])]) 875 876 ZFS_LINUX_CONFTEST_MAKEFILE([conftest], [no], 877 [m4_ifvaln([$5], [-I$PWD/build/conftest], [])]) 878 ZFS_LINUX_COMPILE([build/conftest], [$2], [$3], [$4], [], []) 879]) 880 881dnl # 882dnl # ZFS_LINUX_TRY_COMPILE 883dnl # 884dnl # $1 - global 885dnl # $2 - source 886dnl # $3 - run on success (valid .ko generated) 887dnl # $4 - run on failure (unable to compile) 888dnl # 889dnl # When configuring as builtin (--enable-linux-builtin) for kernels 890dnl # without loadable module support (CONFIG_MODULES=n) only the object 891dnl # file is created. See ZFS_LINUX_TEST_COMPILE_ALL for details. 892dnl # 893AC_DEFUN([ZFS_LINUX_TRY_COMPILE], [ 894 AS_IF([test "x$enable_linux_builtin" = "xyes"], [ 895 ZFS_LINUX_COMPILE_IFELSE( 896 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 897 [[ZFS_META_LICENSE]])], 898 [test -f build/conftest/conftest.o], [$3], [$4]) 899 ], [ 900 ZFS_LINUX_COMPILE_IFELSE( 901 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 902 [[ZFS_META_LICENSE]])], 903 [test -f build/conftest/conftest.ko], [$3], [$4]) 904 ]) 905]) 906 907dnl # 908dnl # ZFS_CHECK_SYMBOL_EXPORT 909dnl # 910dnl # Check if a symbol is exported on not by consulting the symbols 911dnl # file, or optionally the source code. 912dnl # 913AC_DEFUN([ZFS_CHECK_SYMBOL_EXPORT], [ 914 grep -q -E '[[[:space:]]]$1[[[:space:]]]' \ 915 $LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null 916 rc=$? 917 if test $rc -ne 0; then 918 export=0 919 for file in $2; do 920 grep -q -E "EXPORT_SYMBOL.*($1)" \ 921 "$LINUX/$file" 2>/dev/null 922 rc=$? 923 if test $rc -eq 0; then 924 export=1 925 break; 926 fi 927 done 928 if test $export -eq 0; then : 929 $4 930 else : 931 $3 932 fi 933 else : 934 $3 935 fi 936]) 937 938dnl # 939dnl # ZFS_LINUX_TRY_COMPILE_SYMBOL 940dnl # 941dnl # Like ZFS_LINUX_TRY_COMPILER except ZFS_CHECK_SYMBOL_EXPORT is called 942dnl # to verify symbol exports, unless --enable-linux-builtin was provided 943dnl # to configure. 944dnl # 945AC_DEFUN([ZFS_LINUX_TRY_COMPILE_SYMBOL], [ 946 ZFS_LINUX_TRY_COMPILE([$1], [$2], [rc=0], [rc=1]) 947 if test $rc -ne 0; then : 948 $6 949 else 950 if test "x$enable_linux_builtin" != xyes; then 951 ZFS_CHECK_SYMBOL_EXPORT([$3], [$4], [rc=0], [rc=1]) 952 fi 953 if test $rc -ne 0; then : 954 $6 955 else : 956 $5 957 fi 958 fi 959]) 960 961dnl # 962dnl # ZFS_LINUX_TRY_COMPILE_HEADER 963dnl # like ZFS_LINUX_TRY_COMPILE, except the contents conftest.h are 964dnl # provided via the fifth parameter 965dnl # 966AC_DEFUN([ZFS_LINUX_TRY_COMPILE_HEADER], [ 967 AS_IF([test "x$enable_linux_builtin" = "xyes"], [ 968 ZFS_LINUX_COMPILE_IFELSE( 969 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 970 [[ZFS_META_LICENSE]])], 971 [test -f build/conftest/conftest.o], [$3], [$4], [$5]) 972 ], [ 973 ZFS_LINUX_COMPILE_IFELSE( 974 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 975 [[ZFS_META_LICENSE]])], 976 [test -f build/conftest/conftest.ko], [$3], [$4], [$5]) 977 ]) 978]) 979 980dnl # 981dnl # AS_VERSION_COMPARE_LE 982dnl # like AS_VERSION_COMPARE_LE, but runs $3 if (and only if) $1 <= $2 983dnl # AS_VERSION_COMPARE_LE (version-1, version-2, [action-if-less-or-equal], [action-if-greater]) 984dnl # 985AC_DEFUN([AS_VERSION_COMPARE_LE], [ 986 AS_VERSION_COMPARE([$1], [$2], [$3], [$3], [$4]) 987]) 988 989dnl # 990dnl # ZFS_LINUX_REQUIRE_API 991dnl # like ZFS_LINUX_TEST_ERROR, except only fails if the kernel is 992dnl # at least some specified version. 993dnl # 994AC_DEFUN([ZFS_LINUX_REQUIRE_API], [ 995 AS_VERSION_COMPARE_LE([$2], [$kernsrcver], [ 996 AC_MSG_ERROR([ 997 *** None of the expected "$1" interfaces were detected. This 998 *** interface is expected for kernels version "$2" and above. 999 *** This may be because your kernel version is newer than what is 1000 *** supported, or you are using a patched custom kernel with 1001 *** incompatible modifications. Newer kernels may have incompatible 1002 *** APIs. 1003 *** 1004 *** ZFS Version: $ZFS_META_ALIAS 1005 *** Compatible Kernels: $ZFS_META_KVER_MIN - $ZFS_META_KVER_MAX 1006 ]) 1007 ], [ 1008 AC_MSG_RESULT(no) 1009 ]) 1010]) 1011