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 ZFS_AC_KERNEL_SRC_RECLAIMED 157 case "$host_cpu" in 158 powerpc*) 159 ZFS_AC_KERNEL_SRC_CPU_HAS_FEATURE 160 ZFS_AC_KERNEL_SRC_FLUSH_DCACHE_PAGE 161 ;; 162 esac 163 164 AC_MSG_CHECKING([for available kernel interfaces]) 165 ZFS_LINUX_TEST_COMPILE_ALL([kabi]) 166 AC_MSG_RESULT([done]) 167]) 168 169dnl # 170dnl # Check results of kernel interface tests. 171dnl # 172AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [ 173 ZFS_AC_KERNEL_ACCESS_OK_TYPE 174 ZFS_AC_KERNEL_GLOBAL_PAGE_STATE 175 ZFS_AC_KERNEL_OBJTOOL 176 ZFS_AC_KERNEL_PDE_DATA 177 ZFS_AC_KERNEL_FALLOCATE 178 ZFS_AC_KERNEL_FADVISE 179 ZFS_AC_KERNEL_GENERIC_FADVISE 180 ZFS_AC_KERNEL_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE 181 ZFS_AC_KERNEL_RWSEM 182 ZFS_AC_KERNEL_SCHED 183 ZFS_AC_KERNEL_USLEEP_RANGE 184 ZFS_AC_KERNEL_KMEM_CACHE 185 ZFS_AC_KERNEL_KVMALLOC 186 ZFS_AC_KERNEL_VMALLOC_PAGE_KERNEL 187 ZFS_AC_KERNEL_WAIT 188 ZFS_AC_KERNEL_INODE_TIMES 189 ZFS_AC_KERNEL_INODE_LOCK 190 ZFS_AC_KERNEL_GROUP_INFO_GID 191 ZFS_AC_KERNEL_RW 192 ZFS_AC_KERNEL_TIMER_SETUP 193 ZFS_AC_KERNEL_SUPER_USER_NS 194 ZFS_AC_KERNEL_PROC_OPERATIONS 195 ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS 196 ZFS_AC_KERNEL_BIO 197 ZFS_AC_KERNEL_BLKDEV 198 ZFS_AC_KERNEL_BLK_QUEUE 199 ZFS_AC_KERNEL_GENHD_FLAGS 200 ZFS_AC_KERNEL_REVALIDATE_DISK 201 ZFS_AC_KERNEL_GET_DISK_RO 202 ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL 203 ZFS_AC_KERNEL_DISCARD_GRANULARITY 204 ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE 205 ZFS_AC_KERNEL_XATTR 206 ZFS_AC_KERNEL_ACL 207 ZFS_AC_KERNEL_INODE_SETATTR 208 ZFS_AC_KERNEL_INODE_GETATTR 209 ZFS_AC_KERNEL_INODE_SET_FLAGS 210 ZFS_AC_KERNEL_INODE_SET_IVERSION 211 ZFS_AC_KERNEL_SHOW_OPTIONS 212 ZFS_AC_KERNEL_FILE_INODE 213 ZFS_AC_KERNEL_FILE_DENTRY 214 ZFS_AC_KERNEL_FSYNC 215 ZFS_AC_KERNEL_AIO_FSYNC 216 ZFS_AC_KERNEL_EVICT_INODE 217 ZFS_AC_KERNEL_DIRTY_INODE 218 ZFS_AC_KERNEL_SHRINKER 219 ZFS_AC_KERNEL_MKDIR 220 ZFS_AC_KERNEL_LOOKUP_FLAGS 221 ZFS_AC_KERNEL_CREATE 222 ZFS_AC_KERNEL_PERMISSION 223 ZFS_AC_KERNEL_GET_LINK 224 ZFS_AC_KERNEL_PUT_LINK 225 ZFS_AC_KERNEL_TMPFILE 226 ZFS_AC_KERNEL_AUTOMOUNT 227 ZFS_AC_KERNEL_ENCODE_FH_WITH_INODE 228 ZFS_AC_KERNEL_COMMIT_METADATA 229 ZFS_AC_KERNEL_CLEAR_INODE 230 ZFS_AC_KERNEL_SETATTR_PREPARE 231 ZFS_AC_KERNEL_INSERT_INODE_LOCKED 232 ZFS_AC_KERNEL_DENTRY 233 ZFS_AC_KERNEL_DENTRY_ALIAS_D_U 234 ZFS_AC_KERNEL_TRUNCATE_SETSIZE 235 ZFS_AC_KERNEL_SECURITY_INODE 236 ZFS_AC_KERNEL_FST_MOUNT 237 ZFS_AC_KERNEL_BDI 238 ZFS_AC_KERNEL_SET_NLINK 239 ZFS_AC_KERNEL_SGET 240 ZFS_AC_KERNEL_LSEEK_EXECUTE 241 ZFS_AC_KERNEL_VFS_FILEMAP_DIRTY_FOLIO 242 ZFS_AC_KERNEL_VFS_READ_FOLIO 243 ZFS_AC_KERNEL_VFS_GETATTR 244 ZFS_AC_KERNEL_VFS_FSYNC_2ARGS 245 ZFS_AC_KERNEL_VFS_ITERATE 246 ZFS_AC_KERNEL_VFS_DIRECT_IO 247 ZFS_AC_KERNEL_VFS_READPAGES 248 ZFS_AC_KERNEL_VFS_SET_PAGE_DIRTY_NOBUFFERS 249 ZFS_AC_KERNEL_VFS_RW_ITERATE 250 ZFS_AC_KERNEL_VFS_GENERIC_WRITE_CHECKS 251 ZFS_AC_KERNEL_VFS_IOV_ITER 252 ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS 253 ZFS_AC_KERNEL_FOLLOW_DOWN_ONE 254 ZFS_AC_KERNEL_MAKE_REQUEST_FN 255 ZFS_AC_KERNEL_GENERIC_IO_ACCT 256 ZFS_AC_KERNEL_FPU 257 ZFS_AC_KERNEL_FMODE_T 258 ZFS_AC_KERNEL_KUIDGID_T 259 ZFS_AC_KERNEL_KUID_HELPERS 260 ZFS_AC_KERNEL_RENAME 261 ZFS_AC_KERNEL_CURRENT_TIME 262 ZFS_AC_KERNEL_USERNS_CAPABILITIES 263 ZFS_AC_KERNEL_IN_COMPAT_SYSCALL 264 ZFS_AC_KERNEL_KTIME 265 ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC 266 ZFS_AC_KERNEL_TOTALHIGH_PAGES 267 ZFS_AC_KERNEL_KSTRTOUL 268 ZFS_AC_KERNEL_PERCPU 269 ZFS_AC_KERNEL_CPU_HOTPLUG 270 ZFS_AC_KERNEL_GENERIC_FILLATTR 271 ZFS_AC_KERNEL_MKNOD 272 ZFS_AC_KERNEL_SYMLINK 273 ZFS_AC_KERNEL_BIO_MAX_SEGS 274 ZFS_AC_KERNEL_SIGNAL_STOP 275 ZFS_AC_KERNEL_SIGINFO 276 ZFS_AC_KERNEL_SYSFS 277 ZFS_AC_KERNEL_SET_SPECIAL_STATE 278 ZFS_AC_KERNEL_STANDALONE_LINUX_STDARG 279 ZFS_AC_KERNEL_PAGEMAP_FOLIO_WAIT_BIT 280 ZFS_AC_KERNEL_ADD_DISK 281 ZFS_AC_KERNEL_KTHREAD 282 ZFS_AC_KERNEL_ZERO_PAGE 283 ZFS_AC_KERNEL___COPY_FROM_USER_INATOMIC 284 ZFS_AC_KERNEL_USER_NS_COMMON_INUM 285 ZFS_AC_KERNEL_IDMAP_MNT_API 286 ZFS_AC_KERNEL_IATTR_VFSID 287 ZFS_AC_KERNEL_FILEMAP 288 ZFS_AC_KERNEL_WRITEPAGE_T 289 ZFS_AC_KERNEL_RECLAIMED 290 case "$host_cpu" in 291 powerpc*) 292 ZFS_AC_KERNEL_CPU_HAS_FEATURE 293 ZFS_AC_KERNEL_FLUSH_DCACHE_PAGE 294 ;; 295 esac 296]) 297 298dnl # 299dnl # Detect name used for Module.symvers file in kernel 300dnl # 301AC_DEFUN([ZFS_AC_MODULE_SYMVERS], [ 302 modpost=$LINUX/scripts/Makefile.modpost 303 AC_MSG_CHECKING([kernel file name for module symbols]) 304 AS_IF([test "x$enable_linux_builtin" != xyes -a -f "$modpost"], [ 305 AS_IF([grep -q Modules.symvers $modpost], [ 306 LINUX_SYMBOLS=Modules.symvers 307 ], [ 308 LINUX_SYMBOLS=Module.symvers 309 ]) 310 311 AS_IF([test ! -f "$LINUX_OBJ/$LINUX_SYMBOLS"], [ 312 AC_MSG_ERROR([ 313 *** Please make sure the kernel devel package for your distribution 314 *** is installed. If you are building with a custom kernel, make sure 315 *** the kernel is configured, built, and the '--with-linux=PATH' 316 *** configure option refers to the location of the kernel source. 317 ]) 318 ]) 319 ], [ 320 LINUX_SYMBOLS=NONE 321 ]) 322 AC_MSG_RESULT($LINUX_SYMBOLS) 323 AC_SUBST(LINUX_SYMBOLS) 324]) 325 326dnl # 327dnl # Detect the kernel to be built against 328dnl # 329dnl # Most modern Linux distributions have separate locations for bare 330dnl # source (source) and prebuilt (build) files. Additionally, there are 331dnl # `source` and `build` symlinks in `/lib/modules/$(KERNEL_VERSION)` 332dnl # pointing to them. The directory search order is now: 333dnl # 334dnl # - `configure` command line values if both `--with-linux` and 335dnl # `--with-linux-obj` were defined 336dnl # 337dnl # - If only `--with-linux` was defined, `--with-linux-obj` is assumed 338dnl # to have the same value as `--with-linux` 339dnl # 340dnl # - If neither `--with-linux` nor `--with-linux-obj` were defined 341dnl # autodetection is used: 342dnl # 343dnl # - `/lib/modules/$(uname -r)/{source,build}` respectively, if exist. 344dnl # 345dnl # - If only `/lib/modules/$(uname -r)/build` exists, it is assumed 346dnl # to be both source and build directory. 347dnl # 348dnl # - The first directory in `/lib/modules` with the highest version 349dnl # number according to `sort -V` which contains both `source` and 350dnl # `build` symlinks/directories. If module directory contains only 351dnl # `build` component, it is assumed to be both source and build 352dnl # directory. 353dnl # 354dnl # - Last resort: the first directory matching `/usr/src/kernels/*` 355dnl # and `/usr/src/linux-*` with the highest version number according 356dnl # to `sort -V` is assumed to be both source and build directory. 357dnl # 358AC_DEFUN([ZFS_AC_KERNEL], [ 359 AC_ARG_WITH([linux], 360 AS_HELP_STRING([--with-linux=PATH], 361 [Path to kernel source]), 362 [kernelsrc="$withval"]) 363 364 AC_ARG_WITH(linux-obj, 365 AS_HELP_STRING([--with-linux-obj=PATH], 366 [Path to kernel build objects]), 367 [kernelbuild="$withval"]) 368 369 AC_MSG_CHECKING([kernel source and build directories]) 370 AS_IF([test -n "$kernelsrc" && test -z "$kernelbuild"], [ 371 kernelbuild="$kernelsrc" 372 ], [test -z "$kernelsrc"], [ 373 AS_IF([test -e "/lib/modules/$(uname -r)/source" && \ 374 test -e "/lib/modules/$(uname -r)/build"], [ 375 src="/lib/modules/$(uname -r)/source" 376 build="/lib/modules/$(uname -r)/build" 377 ], [test -e "/lib/modules/$(uname -r)/build"], [ 378 build="/lib/modules/$(uname -r)/build" 379 src="$build" 380 ], [ 381 src= 382 383 for d in $(ls -1d /lib/modules/* 2>/dev/null | sort -Vr); do 384 if test -e "$d/source" && test -e "$d/build"; then 385 src="$d/source" 386 build="$d/build" 387 break 388 fi 389 390 if test -e "$d/build"; then 391 src="$d/build" 392 build="$d/build" 393 break 394 fi 395 done 396 397 # the least reliable method 398 if test -z "$src"; then 399 src=$(ls -1d /usr/src/kernels/* /usr/src/linux-* \ 400 2>/dev/null | grep -v obj | sort -Vr | head -1) 401 build="$src" 402 fi 403 ]) 404 405 AS_IF([test -n "$src" && test -e "$src"], [ 406 kernelsrc=$(readlink -e "$src") 407 ], [ 408 kernelsrc="[Not found]" 409 ]) 410 AS_IF([test -n "$build" && test -e "$build"], [ 411 kernelbuild=$(readlink -e "$build") 412 ], [ 413 kernelbuild="[Not found]" 414 ]) 415 ], [ 416 AS_IF([test "$kernelsrc" = "NONE"], [ 417 kernsrcver=NONE 418 ]) 419 withlinux=yes 420 ]) 421 422 AC_MSG_RESULT([done]) 423 AC_MSG_CHECKING([kernel source directory]) 424 AC_MSG_RESULT([$kernelsrc]) 425 AC_MSG_CHECKING([kernel build directory]) 426 AC_MSG_RESULT([$kernelbuild]) 427 AS_IF([test ! -d "$kernelsrc" || test ! -d "$kernelbuild"], [ 428 AC_MSG_ERROR([ 429 *** Please make sure the kernel devel package for your distribution 430 *** is installed and then try again. If that fails, you can specify the 431 *** location of the kernel source and build with the '--with-linux=PATH' and 432 *** '--with-linux-obj=PATH' options respectively.]) 433 ]) 434 435 AC_MSG_CHECKING([kernel source version]) 436 utsrelease1=$kernelbuild/include/linux/version.h 437 utsrelease2=$kernelbuild/include/linux/utsrelease.h 438 utsrelease3=$kernelbuild/include/generated/utsrelease.h 439 AS_IF([test -r $utsrelease1 && grep -qF UTS_RELEASE $utsrelease1], [ 440 utsrelease=$utsrelease1 441 ], [test -r $utsrelease2 && grep -qF UTS_RELEASE $utsrelease2], [ 442 utsrelease=$utsrelease2 443 ], [test -r $utsrelease3 && grep -qF UTS_RELEASE $utsrelease3], [ 444 utsrelease=$utsrelease3 445 ]) 446 447 AS_IF([test -n "$utsrelease"], [ 448 kernsrcver=$($AWK '/UTS_RELEASE/ { gsub(/"/, "", $[3]); print $[3] }' $utsrelease) 449 AS_IF([test -z "$kernsrcver"], [ 450 AC_MSG_RESULT([Not found]) 451 AC_MSG_ERROR([ 452 *** Cannot determine kernel version. 453 ]) 454 ]) 455 ], [ 456 AC_MSG_RESULT([Not found]) 457 if test "x$enable_linux_builtin" != xyes; then 458 AC_MSG_ERROR([ 459 *** Cannot find UTS_RELEASE definition. 460 ]) 461 else 462 AC_MSG_ERROR([ 463 *** Cannot find UTS_RELEASE definition. 464 *** Please run 'make prepare' inside the kernel source tree.]) 465 fi 466 ]) 467 468 AC_MSG_RESULT([$kernsrcver]) 469 470 AS_VERSION_COMPARE([$kernsrcver], [$ZFS_META_KVER_MIN], [ 471 AC_MSG_ERROR([ 472 *** Cannot build against kernel version $kernsrcver. 473 *** The minimum supported kernel version is $ZFS_META_KVER_MIN. 474 ]) 475 ]) 476 477 LINUX=${kernelsrc} 478 LINUX_OBJ=${kernelbuild} 479 LINUX_VERSION=${kernsrcver} 480 481 AC_SUBST(LINUX) 482 AC_SUBST(LINUX_OBJ) 483 AC_SUBST(LINUX_VERSION) 484]) 485 486dnl # 487dnl # Detect the QAT module to be built against, QAT provides hardware 488dnl # acceleration for data compression: 489dnl # 490dnl # https://01.org/intel-quickassist-technology 491dnl # 492dnl # 1) Download and install QAT driver from the above link 493dnl # 2) Start QAT driver in your system: 494dnl # service qat_service start 495dnl # 3) Enable QAT in ZFS, e.g.: 496dnl # ./configure --with-qat=<qat-driver-path>/QAT1.6 497dnl # make 498dnl # 4) Set GZIP compression in ZFS dataset: 499dnl # zfs set compression = gzip <dataset> 500dnl # 501dnl # Then the data written to this ZFS pool is compressed by QAT accelerator 502dnl # automatically, and de-compressed by QAT when read from the pool. 503dnl # 504dnl # 1) Get QAT hardware statistics with: 505dnl # cat /proc/icp_dh895xcc_dev/qat 506dnl # 2) To disable QAT: 507dnl # insmod zfs.ko zfs_qat_disable=1 508dnl # 509AC_DEFUN([ZFS_AC_QAT], [ 510 AC_ARG_WITH([qat], 511 AS_HELP_STRING([--with-qat=PATH], 512 [Path to qat source]), 513 AS_IF([test "$withval" = "yes"], 514 AC_MSG_ERROR([--with-qat=PATH requires a PATH]), 515 [qatsrc="$withval"])) 516 517 AC_ARG_WITH([qat-obj], 518 AS_HELP_STRING([--with-qat-obj=PATH], 519 [Path to qat build objects]), 520 [qatbuild="$withval"]) 521 522 AS_IF([test ! -z "${qatsrc}"], [ 523 AC_MSG_CHECKING([qat source directory]) 524 AC_MSG_RESULT([$qatsrc]) 525 QAT_SRC="${qatsrc}/quickassist" 526 AS_IF([ test ! -e "$QAT_SRC/include/cpa.h"], [ 527 AC_MSG_ERROR([ 528 *** Please make sure the qat driver package is installed 529 *** and specify the location of the qat source with the 530 *** '--with-qat=PATH' option then try again. Failed to 531 *** find cpa.h in: 532 ${QAT_SRC}/include]) 533 ]) 534 ]) 535 536 AS_IF([test ! -z "${qatsrc}"], [ 537 AC_MSG_CHECKING([qat build directory]) 538 AS_IF([test -z "$qatbuild"], [ 539 qatbuild="${qatsrc}/build" 540 ]) 541 542 AC_MSG_RESULT([$qatbuild]) 543 QAT_OBJ=${qatbuild} 544 AS_IF([ ! test -e "$QAT_OBJ/icp_qa_al.ko" && ! test -e "$QAT_OBJ/qat_api.ko"], [ 545 AC_MSG_ERROR([ 546 *** Please make sure the qat driver is installed then try again. 547 *** Failed to find icp_qa_al.ko or qat_api.ko in: 548 $QAT_OBJ]) 549 ]) 550 551 AC_SUBST(QAT_SRC) 552 AC_SUBST(QAT_OBJ) 553 554 AC_DEFINE(HAVE_QAT, 1, 555 [qat is enabled and existed]) 556 ]) 557 558 dnl # 559 dnl # Detect the name used for the QAT Module.symvers file. 560 dnl # 561 AS_IF([test ! -z "${qatsrc}"], [ 562 AC_MSG_CHECKING([qat file for module symbols]) 563 QAT_SYMBOLS=$QAT_SRC/lookaside/access_layer/src/Module.symvers 564 565 AS_IF([test -r $QAT_SYMBOLS], [ 566 AC_MSG_RESULT([$QAT_SYMBOLS]) 567 AC_SUBST(QAT_SYMBOLS) 568 ],[ 569 AC_MSG_ERROR([ 570 *** Please make sure the qat driver is installed then try again. 571 *** Failed to find Module.symvers in: 572 $QAT_SYMBOLS 573 ]) 574 ]) 575 ]) 576]) 577 578dnl # 579dnl # ZFS_LINUX_CONFTEST_H 580dnl # 581AC_DEFUN([ZFS_LINUX_CONFTEST_H], [ 582test -d build/$2 || mkdir -p build/$2 583cat - <<_ACEOF >build/$2/$2.h 584$1 585_ACEOF 586]) 587 588dnl # 589dnl # ZFS_LINUX_CONFTEST_C 590dnl # 591AC_DEFUN([ZFS_LINUX_CONFTEST_C], [ 592test -d build/$2 || mkdir -p build/$2 593cat confdefs.h - <<_ACEOF >build/$2/$2.c 594$1 595_ACEOF 596]) 597 598dnl # 599dnl # ZFS_LINUX_CONFTEST_MAKEFILE 600dnl # 601dnl # $1 - test case name 602dnl # $2 - add to top-level Makefile 603dnl # $3 - additional build flags 604dnl # 605AC_DEFUN([ZFS_LINUX_CONFTEST_MAKEFILE], [ 606 test -d build || mkdir -p build 607 test -d build/$1 || mkdir -p build/$1 608 609 file=build/$1/Makefile 610 611 dnl # Example command line to manually build source. 612 cat - <<_ACEOF >$file 613# Example command line to manually build source 614# make modules -C $LINUX_OBJ $ARCH_UM M=$PWD/build/$1 615 616ccflags-y := -Werror $FRAME_LARGER_THAN 617_ACEOF 618 619 dnl # Additional custom CFLAGS as requested. 620 m4_ifval($3, [echo "ccflags-y += $3" >>$file], []) 621 622 dnl # Test case source 623 echo "obj-m := $1.o" >>$file 624 625 AS_IF([test "x$2" = "xyes"], [echo "obj-m += $1/" >>build/Makefile], []) 626]) 627 628dnl # 629dnl # ZFS_LINUX_TEST_PROGRAM(C)([PROLOGUE], [BODY]) 630dnl # 631m4_define([ZFS_LINUX_TEST_PROGRAM], [ 632#include <linux/module.h> 633$1 634 635int 636main (void) 637{ 638$2 639 ; 640 return 0; 641} 642 643MODULE_DESCRIPTION("conftest"); 644MODULE_AUTHOR(ZFS_META_AUTHOR); 645MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); 646MODULE_LICENSE($3); 647]) 648 649dnl # 650dnl # ZFS_LINUX_TEST_REMOVE 651dnl # 652dnl # Removes the specified test source and results. 653dnl # 654AC_DEFUN([ZFS_LINUX_TEST_REMOVE], [ 655 test -d build/$1 && rm -Rf build/$1 656 test -f build/Makefile && sed '/$1/d' build/Makefile 657]) 658 659dnl # 660dnl # ZFS_LINUX_COMPILE 661dnl # 662dnl # $1 - build dir 663dnl # $2 - test command 664dnl # $3 - pass command 665dnl # $4 - fail command 666dnl # $5 - set KBUILD_MODPOST_NOFINAL='yes' 667dnl # $6 - set KBUILD_MODPOST_WARN='yes' 668dnl # 669dnl # Used internally by ZFS_LINUX_TEST_{COMPILE,MODPOST} 670dnl # 671AC_DEFUN([ZFS_LINUX_COMPILE], [ 672 AC_ARG_VAR([KERNEL_CC], [C compiler for 673 building kernel modules]) 674 AC_ARG_VAR([KERNEL_LD], [Linker for 675 building kernel modules]) 676 AC_ARG_VAR([KERNEL_LLVM], [Binary option to 677 build kernel modules with LLVM/CLANG toolchain]) 678 AC_TRY_COMMAND([ 679 KBUILD_MODPOST_NOFINAL="$5" KBUILD_MODPOST_WARN="$6" 680 make modules -k -j$TEST_JOBS ${KERNEL_CC:+CC=$KERNEL_CC} 681 ${KERNEL_LD:+LD=$KERNEL_LD} ${KERNEL_LLVM:+LLVM=$KERNEL_LLVM} 682 CONFIG_MODULES=y CFLAGS_MODULE=-DCONFIG_MODULES 683 -C $LINUX_OBJ $ARCH_UM M=$PWD/$1 >$1/build.log 2>&1]) 684 AS_IF([AC_TRY_COMMAND([$2])], [$3], [$4]) 685]) 686 687dnl # 688dnl # ZFS_LINUX_TEST_COMPILE 689dnl # 690dnl # Perform a full compile excluding the final modpost phase. 691dnl # 692AC_DEFUN([ZFS_LINUX_TEST_COMPILE], [ 693 ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [ 694 mv $2/Makefile $2/Makefile.compile.$1 695 mv $2/build.log $2/build.log.$1 696 ],[ 697 AC_MSG_ERROR([ 698 *** Unable to compile test source to determine kernel interfaces.]) 699 ], [yes], []) 700]) 701 702dnl # 703dnl # ZFS_LINUX_TEST_MODPOST 704dnl # 705dnl # Perform a full compile including the modpost phase. This may 706dnl # be an incremental build if the objects have already been built. 707dnl # 708AC_DEFUN([ZFS_LINUX_TEST_MODPOST], [ 709 ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [ 710 mv $2/Makefile $2/Makefile.modpost.$1 711 cat $2/build.log >>build/build.log.$1 712 ],[ 713 AC_MSG_ERROR([ 714 *** Unable to modpost test source to determine kernel interfaces.]) 715 ], [], [yes]) 716]) 717 718dnl # 719dnl # Perform the compilation of the test cases in two phases. 720dnl # 721dnl # Phase 1) attempt to build the object files for all of the tests 722dnl # defined by the ZFS_LINUX_TEST_SRC macro. But do not 723dnl # perform the final modpost stage. 724dnl # 725dnl # Phase 2) disable all tests which failed the initial compilation, 726dnl # then invoke the final modpost step for the remaining tests. 727dnl # 728dnl # This allows us efficiently build the test cases in parallel while 729dnl # remaining resilient to build failures which are expected when 730dnl # detecting the available kernel interfaces. 731dnl # 732dnl # The maximum allowed parallelism can be controlled by setting the 733dnl # TEST_JOBS environment variable. Otherwise, it default to $(nproc). 734dnl # 735AC_DEFUN([ZFS_LINUX_TEST_COMPILE_ALL], [ 736 dnl # Phase 1 - Compilation only, final linking is skipped. 737 ZFS_LINUX_TEST_COMPILE([$1], [build]) 738 739 dnl # 740 dnl # Phase 2 - When building external modules disable test cases 741 dnl # which failed to compile and invoke modpost to verify the 742 dnl # final linking. 743 dnl # 744 dnl # Test names suffixed with '_license' call modpost independently 745 dnl # to ensure that a single incompatibility does not result in the 746 dnl # modpost phase exiting early. This check is not performed on 747 dnl # every symbol since the majority are compatible and doing so 748 dnl # would significantly slow down this phase. 749 dnl # 750 dnl # When configuring for builtin (--enable-linux-builtin) 751 dnl # fake the linking step artificially create the expected .ko 752 dnl # files for tests which did compile. This is required for 753 dnl # kernels which do not have loadable module support or have 754 dnl # not yet been built. 755 dnl # 756 AS_IF([test "x$enable_linux_builtin" = "xno"], [ 757 for dir in $(awk '/^obj-m/ { print [$]3 }' \ 758 build/Makefile.compile.$1); do 759 name=${dir%/} 760 AS_IF([test -f build/$name/$name.o], [ 761 AS_IF([test "${name##*_}" = "license"], [ 762 ZFS_LINUX_TEST_MODPOST([$1], 763 [build/$name]) 764 echo "obj-n += $dir" >>build/Makefile 765 ], [ 766 echo "obj-m += $dir" >>build/Makefile 767 ]) 768 ], [ 769 echo "obj-n += $dir" >>build/Makefile 770 ]) 771 done 772 773 ZFS_LINUX_TEST_MODPOST([$1], [build]) 774 ], [ 775 for dir in $(awk '/^obj-m/ { print [$]3 }' \ 776 build/Makefile.compile.$1); do 777 name=${dir%/} 778 AS_IF([test -f build/$name/$name.o], [ 779 touch build/$name/$name.ko 780 ]) 781 done 782 ]) 783]) 784 785dnl # 786dnl # ZFS_LINUX_TEST_SRC 787dnl # 788dnl # $1 - name 789dnl # $2 - global 790dnl # $3 - source 791dnl # $4 - extra cflags 792dnl # $5 - check license-compatibility 793dnl # 794dnl # Check if the test source is buildable at all and then if it is 795dnl # license compatible. 796dnl # 797dnl # N.B because all of the test cases are compiled in parallel they 798dnl # must never depend on the results of previous tests. Each test 799dnl # needs to be entirely independent. 800dnl # 801AC_DEFUN([ZFS_LINUX_TEST_SRC], [ 802 ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM([[$2]], [[$3]], 803 [["Dual BSD/GPL"]])], [$1]) 804 ZFS_LINUX_CONFTEST_MAKEFILE([$1], [yes], [$4]) 805 806 AS_IF([ test -n "$5" ], [ 807 ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM( 808 [[$2]], [[$3]], [[$5]])], [$1_license]) 809 ZFS_LINUX_CONFTEST_MAKEFILE([$1_license], [yes], [$4]) 810 ]) 811]) 812 813dnl # 814dnl # ZFS_LINUX_TEST_RESULT 815dnl # 816dnl # $1 - name of a test source (ZFS_LINUX_TEST_SRC) 817dnl # $2 - run on success (valid .ko generated) 818dnl # $3 - run on failure (unable to compile) 819dnl # 820AC_DEFUN([ZFS_LINUX_TEST_RESULT], [ 821 AS_IF([test -d build/$1], [ 822 AS_IF([test -f build/$1/$1.ko], [$2], [$3]) 823 ], [ 824 AC_MSG_ERROR([ 825 *** No matching source for the "$1" test, check that 826 *** both the test source and result macros refer to the same name. 827 ]) 828 ]) 829]) 830 831dnl # 832dnl # ZFS_LINUX_TEST_ERROR 833dnl # 834dnl # Generic error message which can be used when none of the expected 835dnl # kernel interfaces were detected. 836dnl # 837AC_DEFUN([ZFS_LINUX_TEST_ERROR], [ 838 AC_MSG_ERROR([ 839 *** None of the expected "$1" interfaces were detected. 840 *** This may be because your kernel version is newer than what is 841 *** supported, or you are using a patched custom kernel with 842 *** incompatible modifications. 843 *** 844 *** ZFS Version: $ZFS_META_ALIAS 845 *** Compatible Kernels: $ZFS_META_KVER_MIN - $ZFS_META_KVER_MAX 846 ]) 847]) 848 849dnl # 850dnl # ZFS_LINUX_TEST_RESULT_SYMBOL 851dnl # 852dnl # Like ZFS_LINUX_TEST_RESULT except ZFS_CHECK_SYMBOL_EXPORT is called to 853dnl # verify symbol exports, unless --enable-linux-builtin was provided to 854dnl # configure. 855dnl # 856AC_DEFUN([ZFS_LINUX_TEST_RESULT_SYMBOL], [ 857 AS_IF([ ! test -f build/$1/$1.ko], [ 858 $5 859 ], [ 860 AS_IF([test "x$enable_linux_builtin" != "xyes"], [ 861 ZFS_CHECK_SYMBOL_EXPORT([$2], [$3], [$4], [$5]) 862 ], [ 863 $4 864 ]) 865 ]) 866]) 867 868dnl # 869dnl # ZFS_LINUX_COMPILE_IFELSE 870dnl # 871AC_DEFUN([ZFS_LINUX_COMPILE_IFELSE], [ 872 ZFS_LINUX_TEST_REMOVE([conftest]) 873 874 m4_ifvaln([$1], [ZFS_LINUX_CONFTEST_C([$1], [conftest])]) 875 m4_ifvaln([$5], [ZFS_LINUX_CONFTEST_H([$5], [conftest])], 876 [ZFS_LINUX_CONFTEST_H([], [conftest])]) 877 878 ZFS_LINUX_CONFTEST_MAKEFILE([conftest], [no], 879 [m4_ifvaln([$5], [-I$PWD/build/conftest], [])]) 880 ZFS_LINUX_COMPILE([build/conftest], [$2], [$3], [$4], [], []) 881]) 882 883dnl # 884dnl # ZFS_LINUX_TRY_COMPILE 885dnl # 886dnl # $1 - global 887dnl # $2 - source 888dnl # $3 - run on success (valid .ko generated) 889dnl # $4 - run on failure (unable to compile) 890dnl # 891dnl # When configuring as builtin (--enable-linux-builtin) for kernels 892dnl # without loadable module support (CONFIG_MODULES=n) only the object 893dnl # file is created. See ZFS_LINUX_TEST_COMPILE_ALL for details. 894dnl # 895AC_DEFUN([ZFS_LINUX_TRY_COMPILE], [ 896 AS_IF([test "x$enable_linux_builtin" = "xyes"], [ 897 ZFS_LINUX_COMPILE_IFELSE( 898 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 899 [[ZFS_META_LICENSE]])], 900 [test -f build/conftest/conftest.o], [$3], [$4]) 901 ], [ 902 ZFS_LINUX_COMPILE_IFELSE( 903 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 904 [[ZFS_META_LICENSE]])], 905 [test -f build/conftest/conftest.ko], [$3], [$4]) 906 ]) 907]) 908 909dnl # 910dnl # ZFS_CHECK_SYMBOL_EXPORT 911dnl # 912dnl # Check if a symbol is exported on not by consulting the symbols 913dnl # file, or optionally the source code. 914dnl # 915AC_DEFUN([ZFS_CHECK_SYMBOL_EXPORT], [ 916 grep -q -E '[[[:space:]]]$1[[[:space:]]]' \ 917 $LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null 918 rc=$? 919 if test $rc -ne 0; then 920 export=0 921 for file in $2; do 922 grep -q -E "EXPORT_SYMBOL.*($1)" \ 923 "$LINUX/$file" 2>/dev/null 924 rc=$? 925 if test $rc -eq 0; then 926 export=1 927 break; 928 fi 929 done 930 if test $export -eq 0; then : 931 $4 932 else : 933 $3 934 fi 935 else : 936 $3 937 fi 938]) 939 940dnl # 941dnl # ZFS_LINUX_TRY_COMPILE_SYMBOL 942dnl # 943dnl # Like ZFS_LINUX_TRY_COMPILER except ZFS_CHECK_SYMBOL_EXPORT is called 944dnl # to verify symbol exports, unless --enable-linux-builtin was provided 945dnl # to configure. 946dnl # 947AC_DEFUN([ZFS_LINUX_TRY_COMPILE_SYMBOL], [ 948 ZFS_LINUX_TRY_COMPILE([$1], [$2], [rc=0], [rc=1]) 949 if test $rc -ne 0; then : 950 $6 951 else 952 if test "x$enable_linux_builtin" != xyes; then 953 ZFS_CHECK_SYMBOL_EXPORT([$3], [$4], [rc=0], [rc=1]) 954 fi 955 if test $rc -ne 0; then : 956 $6 957 else : 958 $5 959 fi 960 fi 961]) 962 963dnl # 964dnl # ZFS_LINUX_TRY_COMPILE_HEADER 965dnl # like ZFS_LINUX_TRY_COMPILE, except the contents conftest.h are 966dnl # provided via the fifth parameter 967dnl # 968AC_DEFUN([ZFS_LINUX_TRY_COMPILE_HEADER], [ 969 AS_IF([test "x$enable_linux_builtin" = "xyes"], [ 970 ZFS_LINUX_COMPILE_IFELSE( 971 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 972 [[ZFS_META_LICENSE]])], 973 [test -f build/conftest/conftest.o], [$3], [$4], [$5]) 974 ], [ 975 ZFS_LINUX_COMPILE_IFELSE( 976 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 977 [[ZFS_META_LICENSE]])], 978 [test -f build/conftest/conftest.ko], [$3], [$4], [$5]) 979 ]) 980]) 981 982dnl # 983dnl # AS_VERSION_COMPARE_LE 984dnl # like AS_VERSION_COMPARE_LE, but runs $3 if (and only if) $1 <= $2 985dnl # AS_VERSION_COMPARE_LE (version-1, version-2, [action-if-less-or-equal], [action-if-greater]) 986dnl # 987AC_DEFUN([AS_VERSION_COMPARE_LE], [ 988 AS_VERSION_COMPARE([$1], [$2], [$3], [$3], [$4]) 989]) 990 991dnl # 992dnl # ZFS_LINUX_REQUIRE_API 993dnl # like ZFS_LINUX_TEST_ERROR, except only fails if the kernel is 994dnl # at least some specified version. 995dnl # 996AC_DEFUN([ZFS_LINUX_REQUIRE_API], [ 997 AS_VERSION_COMPARE_LE([$2], [$kernsrcver], [ 998 AC_MSG_ERROR([ 999 *** None of the expected "$1" interfaces were detected. This 1000 *** interface is expected for kernels version "$2" and above. 1001 *** This may be because your kernel version is newer than what is 1002 *** supported, or you are using a patched custom kernel with 1003 *** incompatible modifications. Newer kernels may have incompatible 1004 *** APIs. 1005 *** 1006 *** ZFS Version: $ZFS_META_ALIAS 1007 *** Compatible Kernels: $ZFS_META_KVER_MIN - $ZFS_META_KVER_MAX 1008 ]) 1009 ], [ 1010 AC_MSG_RESULT(no) 1011 ]) 1012]) 1013