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_TEST_MODULE 12 ZFS_AC_KERNEL_CONFIG_DEFINED 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_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE 46 ZFS_AC_KERNEL_SRC_RWSEM 47 ZFS_AC_KERNEL_SRC_SCHED 48 ZFS_AC_KERNEL_SRC_USLEEP_RANGE 49 ZFS_AC_KERNEL_SRC_KMEM_CACHE 50 ZFS_AC_KERNEL_SRC_KVMALLOC 51 ZFS_AC_KERNEL_SRC_VMALLOC_PAGE_KERNEL 52 ZFS_AC_KERNEL_SRC_WAIT 53 ZFS_AC_KERNEL_SRC_INODE_TIMES 54 ZFS_AC_KERNEL_SRC_INODE_LOCK 55 ZFS_AC_KERNEL_SRC_GROUP_INFO_GID 56 ZFS_AC_KERNEL_SRC_RW 57 ZFS_AC_KERNEL_SRC_TIMER_SETUP 58 ZFS_AC_KERNEL_SRC_SUPER_USER_NS 59 ZFS_AC_KERNEL_SRC_PROC_OPERATIONS 60 ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS 61 ZFS_AC_KERNEL_SRC_BIO 62 ZFS_AC_KERNEL_SRC_BLKDEV 63 ZFS_AC_KERNEL_SRC_BLK_QUEUE 64 ZFS_AC_KERNEL_SRC_REVALIDATE_DISK 65 ZFS_AC_KERNEL_SRC_GET_DISK_RO 66 ZFS_AC_KERNEL_SRC_GENERIC_READLINK_GLOBAL 67 ZFS_AC_KERNEL_SRC_DISCARD_GRANULARITY 68 ZFS_AC_KERNEL_SRC_INODE_OWNER_OR_CAPABLE 69 ZFS_AC_KERNEL_SRC_XATTR 70 ZFS_AC_KERNEL_SRC_ACL 71 ZFS_AC_KERNEL_SRC_INODE_GETATTR 72 ZFS_AC_KERNEL_SRC_INODE_SET_FLAGS 73 ZFS_AC_KERNEL_SRC_INODE_SET_IVERSION 74 ZFS_AC_KERNEL_SRC_SHOW_OPTIONS 75 ZFS_AC_KERNEL_SRC_FILE_INODE 76 ZFS_AC_KERNEL_SRC_FILE_DENTRY 77 ZFS_AC_KERNEL_SRC_FSYNC 78 ZFS_AC_KERNEL_SRC_AIO_FSYNC 79 ZFS_AC_KERNEL_SRC_EVICT_INODE 80 ZFS_AC_KERNEL_SRC_DIRTY_INODE 81 ZFS_AC_KERNEL_SRC_SHRINKER 82 ZFS_AC_KERNEL_SRC_MKDIR 83 ZFS_AC_KERNEL_SRC_LOOKUP_FLAGS 84 ZFS_AC_KERNEL_SRC_CREATE 85 ZFS_AC_KERNEL_SRC_GET_LINK 86 ZFS_AC_KERNEL_SRC_PUT_LINK 87 ZFS_AC_KERNEL_SRC_TMPFILE 88 ZFS_AC_KERNEL_SRC_AUTOMOUNT 89 ZFS_AC_KERNEL_SRC_ENCODE_FH_WITH_INODE 90 ZFS_AC_KERNEL_SRC_COMMIT_METADATA 91 ZFS_AC_KERNEL_SRC_CLEAR_INODE 92 ZFS_AC_KERNEL_SRC_SETATTR_PREPARE 93 ZFS_AC_KERNEL_SRC_INSERT_INODE_LOCKED 94 ZFS_AC_KERNEL_SRC_DENTRY 95 ZFS_AC_KERNEL_SRC_TRUNCATE_SETSIZE 96 ZFS_AC_KERNEL_SRC_SECURITY_INODE 97 ZFS_AC_KERNEL_SRC_FST_MOUNT 98 ZFS_AC_KERNEL_SRC_BDI 99 ZFS_AC_KERNEL_SRC_SET_NLINK 100 ZFS_AC_KERNEL_SRC_SGET 101 ZFS_AC_KERNEL_SRC_LSEEK_EXECUTE 102 ZFS_AC_KERNEL_SRC_VFS_GETATTR 103 ZFS_AC_KERNEL_SRC_VFS_FSYNC_2ARGS 104 ZFS_AC_KERNEL_SRC_VFS_ITERATE 105 ZFS_AC_KERNEL_SRC_VFS_DIRECT_IO 106 ZFS_AC_KERNEL_SRC_VFS_RW_ITERATE 107 ZFS_AC_KERNEL_SRC_VFS_GENERIC_WRITE_CHECKS 108 ZFS_AC_KERNEL_SRC_VFS_IOV_ITER 109 ZFS_AC_KERNEL_SRC_KMAP_ATOMIC_ARGS 110 ZFS_AC_KERNEL_SRC_FOLLOW_DOWN_ONE 111 ZFS_AC_KERNEL_SRC_MAKE_REQUEST_FN 112 ZFS_AC_KERNEL_SRC_GENERIC_IO_ACCT 113 ZFS_AC_KERNEL_SRC_FPU 114 ZFS_AC_KERNEL_SRC_FMODE_T 115 ZFS_AC_KERNEL_SRC_KUIDGID_T 116 ZFS_AC_KERNEL_SRC_KUID_HELPERS 117 ZFS_AC_KERNEL_SRC_MODULE_PARAM_CALL_CONST 118 ZFS_AC_KERNEL_SRC_RENAME 119 ZFS_AC_KERNEL_SRC_CURRENT_TIME 120 ZFS_AC_KERNEL_SRC_USERNS_CAPABILITIES 121 ZFS_AC_KERNEL_SRC_IN_COMPAT_SYSCALL 122 ZFS_AC_KERNEL_SRC_KTIME 123 ZFS_AC_KERNEL_SRC_TOTALRAM_PAGES_FUNC 124 ZFS_AC_KERNEL_SRC_TOTALHIGH_PAGES 125 ZFS_AC_KERNEL_SRC_KSTRTOUL 126 ZFS_AC_KERNEL_SRC_PERCPU 127 ZFS_AC_KERNEL_SRC_CPU_HOTPLUG 128 ZFS_AC_KERNEL_SRC_GENERIC_FILLATTR_USERNS 129 ZFS_AC_KERNEL_SRC_MKNOD 130 ZFS_AC_KERNEL_SRC_SYMLINK 131 ZFS_AC_KERNEL_SRC_BIO_MAX_SEGS 132 133 AC_MSG_CHECKING([for available kernel interfaces]) 134 ZFS_LINUX_TEST_COMPILE_ALL([kabi]) 135 AC_MSG_RESULT([done]) 136]) 137 138dnl # 139dnl # Check results of kernel interface tests. 140dnl # 141AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [ 142 ZFS_AC_KERNEL_ACCESS_OK_TYPE 143 ZFS_AC_KERNEL_GLOBAL_PAGE_STATE 144 ZFS_AC_KERNEL_OBJTOOL 145 ZFS_AC_KERNEL_PDE_DATA 146 ZFS_AC_KERNEL_FALLOCATE 147 ZFS_AC_KERNEL_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE 148 ZFS_AC_KERNEL_RWSEM 149 ZFS_AC_KERNEL_SCHED 150 ZFS_AC_KERNEL_USLEEP_RANGE 151 ZFS_AC_KERNEL_KMEM_CACHE 152 ZFS_AC_KERNEL_KVMALLOC 153 ZFS_AC_KERNEL_VMALLOC_PAGE_KERNEL 154 ZFS_AC_KERNEL_WAIT 155 ZFS_AC_KERNEL_INODE_TIMES 156 ZFS_AC_KERNEL_INODE_LOCK 157 ZFS_AC_KERNEL_GROUP_INFO_GID 158 ZFS_AC_KERNEL_RW 159 ZFS_AC_KERNEL_TIMER_SETUP 160 ZFS_AC_KERNEL_SUPER_USER_NS 161 ZFS_AC_KERNEL_PROC_OPERATIONS 162 ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS 163 ZFS_AC_KERNEL_BIO 164 ZFS_AC_KERNEL_BLKDEV 165 ZFS_AC_KERNEL_BLK_QUEUE 166 ZFS_AC_KERNEL_REVALIDATE_DISK 167 ZFS_AC_KERNEL_GET_DISK_RO 168 ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL 169 ZFS_AC_KERNEL_DISCARD_GRANULARITY 170 ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE 171 ZFS_AC_KERNEL_XATTR 172 ZFS_AC_KERNEL_ACL 173 ZFS_AC_KERNEL_INODE_GETATTR 174 ZFS_AC_KERNEL_INODE_SET_FLAGS 175 ZFS_AC_KERNEL_INODE_SET_IVERSION 176 ZFS_AC_KERNEL_SHOW_OPTIONS 177 ZFS_AC_KERNEL_FILE_INODE 178 ZFS_AC_KERNEL_FILE_DENTRY 179 ZFS_AC_KERNEL_FSYNC 180 ZFS_AC_KERNEL_AIO_FSYNC 181 ZFS_AC_KERNEL_EVICT_INODE 182 ZFS_AC_KERNEL_DIRTY_INODE 183 ZFS_AC_KERNEL_SHRINKER 184 ZFS_AC_KERNEL_MKDIR 185 ZFS_AC_KERNEL_LOOKUP_FLAGS 186 ZFS_AC_KERNEL_CREATE 187 ZFS_AC_KERNEL_GET_LINK 188 ZFS_AC_KERNEL_PUT_LINK 189 ZFS_AC_KERNEL_TMPFILE 190 ZFS_AC_KERNEL_AUTOMOUNT 191 ZFS_AC_KERNEL_ENCODE_FH_WITH_INODE 192 ZFS_AC_KERNEL_COMMIT_METADATA 193 ZFS_AC_KERNEL_CLEAR_INODE 194 ZFS_AC_KERNEL_SETATTR_PREPARE 195 ZFS_AC_KERNEL_INSERT_INODE_LOCKED 196 ZFS_AC_KERNEL_DENTRY 197 ZFS_AC_KERNEL_TRUNCATE_SETSIZE 198 ZFS_AC_KERNEL_SECURITY_INODE 199 ZFS_AC_KERNEL_FST_MOUNT 200 ZFS_AC_KERNEL_BDI 201 ZFS_AC_KERNEL_SET_NLINK 202 ZFS_AC_KERNEL_SGET 203 ZFS_AC_KERNEL_LSEEK_EXECUTE 204 ZFS_AC_KERNEL_VFS_GETATTR 205 ZFS_AC_KERNEL_VFS_FSYNC_2ARGS 206 ZFS_AC_KERNEL_VFS_ITERATE 207 ZFS_AC_KERNEL_VFS_DIRECT_IO 208 ZFS_AC_KERNEL_VFS_RW_ITERATE 209 ZFS_AC_KERNEL_VFS_GENERIC_WRITE_CHECKS 210 ZFS_AC_KERNEL_VFS_IOV_ITER 211 ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS 212 ZFS_AC_KERNEL_FOLLOW_DOWN_ONE 213 ZFS_AC_KERNEL_MAKE_REQUEST_FN 214 ZFS_AC_KERNEL_GENERIC_IO_ACCT 215 ZFS_AC_KERNEL_FPU 216 ZFS_AC_KERNEL_FMODE_T 217 ZFS_AC_KERNEL_KUIDGID_T 218 ZFS_AC_KERNEL_KUID_HELPERS 219 ZFS_AC_KERNEL_MODULE_PARAM_CALL_CONST 220 ZFS_AC_KERNEL_RENAME 221 ZFS_AC_KERNEL_CURRENT_TIME 222 ZFS_AC_KERNEL_USERNS_CAPABILITIES 223 ZFS_AC_KERNEL_IN_COMPAT_SYSCALL 224 ZFS_AC_KERNEL_KTIME 225 ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC 226 ZFS_AC_KERNEL_TOTALHIGH_PAGES 227 ZFS_AC_KERNEL_KSTRTOUL 228 ZFS_AC_KERNEL_PERCPU 229 ZFS_AC_KERNEL_CPU_HOTPLUG 230 ZFS_AC_KERNEL_GENERIC_FILLATTR_USERNS 231 ZFS_AC_KERNEL_MKNOD 232 ZFS_AC_KERNEL_SYMLINK 233 ZFS_AC_KERNEL_BIO_MAX_SEGS 234]) 235 236dnl # 237dnl # Detect name used for Module.symvers file in kernel 238dnl # 239AC_DEFUN([ZFS_AC_MODULE_SYMVERS], [ 240 modpost=$LINUX/scripts/Makefile.modpost 241 AC_MSG_CHECKING([kernel file name for module symbols]) 242 AS_IF([test "x$enable_linux_builtin" != xyes -a -f "$modpost"], [ 243 AS_IF([grep -q Modules.symvers $modpost], [ 244 LINUX_SYMBOLS=Modules.symvers 245 ], [ 246 LINUX_SYMBOLS=Module.symvers 247 ]) 248 249 AS_IF([test ! -f "$LINUX_OBJ/$LINUX_SYMBOLS"], [ 250 AC_MSG_ERROR([ 251 *** Please make sure the kernel devel package for your distribution 252 *** is installed. If you are building with a custom kernel, make sure 253 *** the kernel is configured, built, and the '--with-linux=PATH' 254 *** configure option refers to the location of the kernel source. 255 ]) 256 ]) 257 ], [ 258 LINUX_SYMBOLS=NONE 259 ]) 260 AC_MSG_RESULT($LINUX_SYMBOLS) 261 AC_SUBST(LINUX_SYMBOLS) 262]) 263 264dnl # 265dnl # Detect the kernel to be built against 266dnl # 267AC_DEFUN([ZFS_AC_KERNEL], [ 268 AC_ARG_WITH([linux], 269 AS_HELP_STRING([--with-linux=PATH], 270 [Path to kernel source]), 271 [kernelsrc="$withval"]) 272 273 AC_ARG_WITH(linux-obj, 274 AS_HELP_STRING([--with-linux-obj=PATH], 275 [Path to kernel build objects]), 276 [kernelbuild="$withval"]) 277 278 AC_MSG_CHECKING([kernel source directory]) 279 AS_IF([test -z "$kernelsrc"], [ 280 AS_IF([test -e "/lib/modules/$(uname -r)/source"], [ 281 headersdir="/lib/modules/$(uname -r)/source" 282 sourcelink=$(readlink -f "$headersdir") 283 ], [test -e "/lib/modules/$(uname -r)/build"], [ 284 headersdir="/lib/modules/$(uname -r)/build" 285 sourcelink=$(readlink -f "$headersdir") 286 ], [ 287 sourcelink=$(ls -1d /usr/src/kernels/* \ 288 /usr/src/linux-* \ 289 2>/dev/null | grep -v obj | tail -1) 290 ]) 291 292 AS_IF([test -n "$sourcelink" && test -e ${sourcelink}], [ 293 kernelsrc=`readlink -f ${sourcelink}` 294 ], [ 295 kernelsrc="[Not found]" 296 ]) 297 ], [ 298 AS_IF([test "$kernelsrc" = "NONE"], [ 299 kernsrcver=NONE 300 ]) 301 withlinux=yes 302 ]) 303 304 AC_MSG_RESULT([$kernelsrc]) 305 AS_IF([test ! -d "$kernelsrc"], [ 306 AC_MSG_ERROR([ 307 *** Please make sure the kernel devel package for your distribution 308 *** is installed and then try again. If that fails, you can specify the 309 *** location of the kernel source with the '--with-linux=PATH' option.]) 310 ]) 311 312 AC_MSG_CHECKING([kernel build directory]) 313 AS_IF([test -z "$kernelbuild"], [ 314 AS_IF([test x$withlinux != xyes -a -e "/lib/modules/$(uname -r)/build"], [ 315 kernelbuild=`readlink -f /lib/modules/$(uname -r)/build` 316 ], [test -d ${kernelsrc}-obj/${target_cpu}/${target_cpu}], [ 317 kernelbuild=${kernelsrc}-obj/${target_cpu}/${target_cpu} 318 ], [test -d ${kernelsrc}-obj/${target_cpu}/default], [ 319 kernelbuild=${kernelsrc}-obj/${target_cpu}/default 320 ], [test -d `dirname ${kernelsrc}`/build-${target_cpu}], [ 321 kernelbuild=`dirname ${kernelsrc}`/build-${target_cpu} 322 ], [ 323 kernelbuild=${kernelsrc} 324 ]) 325 ]) 326 AC_MSG_RESULT([$kernelbuild]) 327 328 AC_MSG_CHECKING([kernel source version]) 329 utsrelease1=$kernelbuild/include/linux/version.h 330 utsrelease2=$kernelbuild/include/linux/utsrelease.h 331 utsrelease3=$kernelbuild/include/generated/utsrelease.h 332 AS_IF([test -r $utsrelease1 && fgrep -q UTS_RELEASE $utsrelease1], [ 333 utsrelease=$utsrelease1 334 ], [test -r $utsrelease2 && fgrep -q UTS_RELEASE $utsrelease2], [ 335 utsrelease=$utsrelease2 336 ], [test -r $utsrelease3 && fgrep -q UTS_RELEASE $utsrelease3], [ 337 utsrelease=$utsrelease3 338 ]) 339 340 AS_IF([test -n "$utsrelease"], [ 341 kernsrcver=$($AWK '/UTS_RELEASE/ { gsub(/"/, "", $[3]); print $[3] }' $utsrelease) 342 AS_IF([test -z "$kernsrcver"], [ 343 AC_MSG_RESULT([Not found]) 344 AC_MSG_ERROR([ 345 *** Cannot determine kernel version. 346 ]) 347 ]) 348 ], [ 349 AC_MSG_RESULT([Not found]) 350 if test "x$enable_linux_builtin" != xyes; then 351 AC_MSG_ERROR([ 352 *** Cannot find UTS_RELEASE definition. 353 ]) 354 else 355 AC_MSG_ERROR([ 356 *** Cannot find UTS_RELEASE definition. 357 *** Please run 'make prepare' inside the kernel source tree.]) 358 fi 359 ]) 360 361 AC_MSG_RESULT([$kernsrcver]) 362 363 AS_VERSION_COMPARE([$kernsrcver], [$ZFS_META_KVER_MIN], [ 364 AC_MSG_ERROR([ 365 *** Cannot build against kernel version $kernsrcver. 366 *** The minimum supported kernel version is $ZFS_META_KVER_MIN. 367 ]) 368 ]) 369 370 LINUX=${kernelsrc} 371 LINUX_OBJ=${kernelbuild} 372 LINUX_VERSION=${kernsrcver} 373 374 AC_SUBST(LINUX) 375 AC_SUBST(LINUX_OBJ) 376 AC_SUBST(LINUX_VERSION) 377 378 ZFS_AC_MODULE_SYMVERS 379]) 380 381dnl # 382dnl # Detect the QAT module to be built against, QAT provides hardware 383dnl # acceleration for data compression: 384dnl # 385dnl # https://01.org/intel-quickassist-technology 386dnl # 387dnl # 1) Download and install QAT driver from the above link 388dnl # 2) Start QAT driver in your system: 389dnl # service qat_service start 390dnl # 3) Enable QAT in ZFS, e.g.: 391dnl # ./configure --with-qat=<qat-driver-path>/QAT1.6 392dnl # make 393dnl # 4) Set GZIP compression in ZFS dataset: 394dnl # zfs set compression = gzip <dataset> 395dnl # 396dnl # Then the data written to this ZFS pool is compressed by QAT accelerator 397dnl # automatically, and de-compressed by QAT when read from the pool. 398dnl # 399dnl # 1) Get QAT hardware statistics with: 400dnl # cat /proc/icp_dh895xcc_dev/qat 401dnl # 2) To disable QAT: 402dnl # insmod zfs.ko zfs_qat_disable=1 403dnl # 404AC_DEFUN([ZFS_AC_QAT], [ 405 AC_ARG_WITH([qat], 406 AS_HELP_STRING([--with-qat=PATH], 407 [Path to qat source]), 408 AS_IF([test "$withval" = "yes"], 409 AC_MSG_ERROR([--with-qat=PATH requires a PATH]), 410 [qatsrc="$withval"])) 411 412 AC_ARG_WITH([qat-obj], 413 AS_HELP_STRING([--with-qat-obj=PATH], 414 [Path to qat build objects]), 415 [qatbuild="$withval"]) 416 417 AS_IF([test ! -z "${qatsrc}"], [ 418 AC_MSG_CHECKING([qat source directory]) 419 AC_MSG_RESULT([$qatsrc]) 420 QAT_SRC="${qatsrc}/quickassist" 421 AS_IF([ test ! -e "$QAT_SRC/include/cpa.h"], [ 422 AC_MSG_ERROR([ 423 *** Please make sure the qat driver package is installed 424 *** and specify the location of the qat source with the 425 *** '--with-qat=PATH' option then try again. Failed to 426 *** find cpa.h in: 427 ${QAT_SRC}/include]) 428 ]) 429 ]) 430 431 AS_IF([test ! -z "${qatsrc}"], [ 432 AC_MSG_CHECKING([qat build directory]) 433 AS_IF([test -z "$qatbuild"], [ 434 qatbuild="${qatsrc}/build" 435 ]) 436 437 AC_MSG_RESULT([$qatbuild]) 438 QAT_OBJ=${qatbuild} 439 AS_IF([ ! test -e "$QAT_OBJ/icp_qa_al.ko" && ! test -e "$QAT_OBJ/qat_api.ko"], [ 440 AC_MSG_ERROR([ 441 *** Please make sure the qat driver is installed then try again. 442 *** Failed to find icp_qa_al.ko or qat_api.ko in: 443 $QAT_OBJ]) 444 ]) 445 446 AC_SUBST(QAT_SRC) 447 AC_SUBST(QAT_OBJ) 448 449 AC_DEFINE(HAVE_QAT, 1, 450 [qat is enabled and existed]) 451 ]) 452 453 dnl # 454 dnl # Detect the name used for the QAT Module.symvers file. 455 dnl # 456 AS_IF([test ! -z "${qatsrc}"], [ 457 AC_MSG_CHECKING([qat file for module symbols]) 458 QAT_SYMBOLS=$QAT_SRC/lookaside/access_layer/src/Module.symvers 459 460 AS_IF([test -r $QAT_SYMBOLS], [ 461 AC_MSG_RESULT([$QAT_SYMBOLS]) 462 AC_SUBST(QAT_SYMBOLS) 463 ],[ 464 AC_MSG_ERROR([ 465 *** Please make sure the qat driver is installed then try again. 466 *** Failed to find Module.symvers in: 467 $QAT_SYMBOLS 468 ]) 469 ]) 470 ]) 471]) 472 473dnl # 474dnl # Basic toolchain sanity check. 475dnl # 476AC_DEFUN([ZFS_AC_KERNEL_TEST_MODULE], [ 477 AC_MSG_CHECKING([whether modules can be built]) 478 ZFS_LINUX_TRY_COMPILE([], [], [ 479 AC_MSG_RESULT([yes]) 480 ],[ 481 AC_MSG_RESULT([no]) 482 if test "x$enable_linux_builtin" != xyes; then 483 AC_MSG_ERROR([ 484 *** Unable to build an empty module. 485 ]) 486 else 487 AC_MSG_ERROR([ 488 *** Unable to build an empty module. 489 *** Please run 'make scripts' inside the kernel source tree.]) 490 fi 491 ]) 492]) 493 494dnl # 495dnl # ZFS_LINUX_CONFTEST_H 496dnl # 497AC_DEFUN([ZFS_LINUX_CONFTEST_H], [ 498test -d build/$2 || mkdir -p build/$2 499cat - <<_ACEOF >build/$2/$2.h 500$1 501_ACEOF 502]) 503 504dnl # 505dnl # ZFS_LINUX_CONFTEST_C 506dnl # 507AC_DEFUN([ZFS_LINUX_CONFTEST_C], [ 508test -d build/$2 || mkdir -p build/$2 509cat confdefs.h - <<_ACEOF >build/$2/$2.c 510$1 511_ACEOF 512]) 513 514dnl # 515dnl # ZFS_LINUX_CONFTEST_MAKEFILE 516dnl # 517dnl # $1 - test case name 518dnl # $2 - add to top-level Makefile 519dnl # $3 - additional build flags 520dnl # 521AC_DEFUN([ZFS_LINUX_CONFTEST_MAKEFILE], [ 522 test -d build || mkdir -p build 523 test -d build/$1 || mkdir -p build/$1 524 525 file=build/$1/Makefile 526 527 dnl # Example command line to manually build source. 528 cat - <<_ACEOF >$file 529# Example command line to manually build source 530# make modules -C $LINUX_OBJ $ARCH_UM M=$PWD/build/$1 531 532ccflags-y := -Werror $FRAME_LARGER_THAN 533_ACEOF 534 535 dnl # Additional custom CFLAGS as requested. 536 m4_ifval($3, [echo "ccflags-y += $3" >>$file], []) 537 538 dnl # Test case source 539 echo "obj-m := $1.o" >>$file 540 541 AS_IF([test "x$2" = "xyes"], [echo "obj-m += $1/" >>build/Makefile], []) 542]) 543 544dnl # 545dnl # ZFS_LINUX_TEST_PROGRAM(C)([PROLOGUE], [BODY]) 546dnl # 547m4_define([ZFS_LINUX_TEST_PROGRAM], [ 548#include <linux/module.h> 549$1 550 551int 552main (void) 553{ 554$2 555 ; 556 return 0; 557} 558 559MODULE_DESCRIPTION("conftest"); 560MODULE_AUTHOR(ZFS_META_AUTHOR); 561MODULE_VERSION(ZFS_META_VERSION "-" ZFS_META_RELEASE); 562MODULE_LICENSE($3); 563]) 564 565dnl # 566dnl # ZFS_LINUX_TEST_REMOVE 567dnl # 568dnl # Removes the specified test source and results. 569dnl # 570AC_DEFUN([ZFS_LINUX_TEST_REMOVE], [ 571 test -d build/$1 && rm -Rf build/$1 572 test -f build/Makefile && sed '/$1/d' build/Makefile 573]) 574 575dnl # 576dnl # ZFS_LINUX_COMPILE 577dnl # 578dnl # $1 - build dir 579dnl # $2 - test command 580dnl # $3 - pass command 581dnl # $4 - fail command 582dnl # $5 - set KBUILD_MODPOST_NOFINAL='yes' 583dnl # $6 - set KBUILD_MODPOST_WARN='yes' 584dnl # 585dnl # Used internally by ZFS_LINUX_TEST_{COMPILE,MODPOST} 586dnl # 587AC_DEFUN([ZFS_LINUX_COMPILE], [ 588 AC_TRY_COMMAND([ 589 KBUILD_MODPOST_NOFINAL="$5" KBUILD_MODPOST_WARN="$6" 590 make modules -k -j$TEST_JOBS -C $LINUX_OBJ $ARCH_UM 591 M=$PWD/$1 >$1/build.log 2>&1]) 592 AS_IF([AC_TRY_COMMAND([$2])], [$3], [$4]) 593]) 594 595dnl # 596dnl # ZFS_LINUX_TEST_COMPILE 597dnl # 598dnl # Perform a full compile excluding the final modpost phase. 599dnl # 600AC_DEFUN([ZFS_LINUX_TEST_COMPILE], [ 601 ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [ 602 mv $2/Makefile $2/Makefile.compile.$1 603 mv $2/build.log $2/build.log.$1 604 ],[ 605 AC_MSG_ERROR([ 606 *** Unable to compile test source to determine kernel interfaces.]) 607 ], [yes], []) 608]) 609 610dnl # 611dnl # ZFS_LINUX_TEST_MODPOST 612dnl # 613dnl # Perform a full compile including the modpost phase. This may 614dnl # be an incremental build if the objects have already been built. 615dnl # 616AC_DEFUN([ZFS_LINUX_TEST_MODPOST], [ 617 ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [ 618 mv $2/Makefile $2/Makefile.modpost.$1 619 cat $2/build.log >>build/build.log.$1 620 ],[ 621 AC_MSG_ERROR([ 622 *** Unable to modpost test source to determine kernel interfaces.]) 623 ], [], [yes]) 624]) 625 626dnl # 627dnl # Perform the compilation of the test cases in two phases. 628dnl # 629dnl # Phase 1) attempt to build the object files for all of the tests 630dnl # defined by the ZFS_LINUX_TEST_SRC macro. But do not 631dnl # perform the final modpost stage. 632dnl # 633dnl # Phase 2) disable all tests which failed the initial compilation, 634dnl # then invoke the final modpost step for the remaining tests. 635dnl # 636dnl # This allows us efficiently build the test cases in parallel while 637dnl # remaining resilient to build failures which are expected when 638dnl # detecting the available kernel interfaces. 639dnl # 640dnl # The maximum allowed parallelism can be controlled by setting the 641dnl # TEST_JOBS environment variable. Otherwise, it default to $(nproc). 642dnl # 643AC_DEFUN([ZFS_LINUX_TEST_COMPILE_ALL], [ 644 dnl # Phase 1 - Compilation only, final linking is skipped. 645 ZFS_LINUX_TEST_COMPILE([$1], [build]) 646 647 dnl # 648 dnl # Phase 2 - When building external modules disable test cases 649 dnl # which failed to compile and invoke modpost to verify the 650 dnl # final linking. 651 dnl # 652 dnl # Test names suffixed with '_license' call modpost independently 653 dnl # to ensure that a single incompatibility does not result in the 654 dnl # modpost phase exiting early. This check is not performed on 655 dnl # every symbol since the majority are compatible and doing so 656 dnl # would significantly slow down this phase. 657 dnl # 658 dnl # When configuring for builtin (--enable-linux-builtin) 659 dnl # fake the linking step artificially create the expected .ko 660 dnl # files for tests which did compile. This is required for 661 dnl # kernels which do not have loadable module support or have 662 dnl # not yet been built. 663 dnl # 664 AS_IF([test "x$enable_linux_builtin" = "xno"], [ 665 for dir in $(awk '/^obj-m/ { print [$]3 }' \ 666 build/Makefile.compile.$1); do 667 name=${dir%/} 668 AS_IF([test -f build/$name/$name.o], [ 669 AS_IF([test "${name##*_}" = "license"], [ 670 ZFS_LINUX_TEST_MODPOST([$1], 671 [build/$name]) 672 echo "obj-n += $dir" >>build/Makefile 673 ], [ 674 echo "obj-m += $dir" >>build/Makefile 675 ]) 676 ], [ 677 echo "obj-n += $dir" >>build/Makefile 678 ]) 679 done 680 681 ZFS_LINUX_TEST_MODPOST([$1], [build]) 682 ], [ 683 for dir in $(awk '/^obj-m/ { print [$]3 }' \ 684 build/Makefile.compile.$1); do 685 name=${dir%/} 686 AS_IF([test -f build/$name/$name.o], [ 687 touch build/$name/$name.ko 688 ]) 689 done 690 ]) 691]) 692 693dnl # 694dnl # ZFS_LINUX_TEST_SRC 695dnl # 696dnl # $1 - name 697dnl # $2 - global 698dnl # $3 - source 699dnl # $4 - extra cflags 700dnl # $5 - check license-compatibility 701dnl # 702dnl # Check if the test source is buildable at all and then if it is 703dnl # license compatible. 704dnl # 705dnl # N.B because all of the test cases are compiled in parallel they 706dnl # must never depend on the results of previous tests. Each test 707dnl # needs to be entirely independent. 708dnl # 709AC_DEFUN([ZFS_LINUX_TEST_SRC], [ 710 ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM([[$2]], [[$3]], 711 [["Dual BSD/GPL"]])], [$1]) 712 ZFS_LINUX_CONFTEST_MAKEFILE([$1], [yes], [$4]) 713 714 AS_IF([ test -n "$5" ], [ 715 ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM( 716 [[$2]], [[$3]], [[$5]])], [$1_license]) 717 ZFS_LINUX_CONFTEST_MAKEFILE([$1_license], [yes], [$4]) 718 ]) 719]) 720 721dnl # 722dnl # ZFS_LINUX_TEST_RESULT 723dnl # 724dnl # $1 - name of a test source (ZFS_LINUX_TEST_SRC) 725dnl # $2 - run on success (valid .ko generated) 726dnl # $3 - run on failure (unable to compile) 727dnl # 728AC_DEFUN([ZFS_LINUX_TEST_RESULT], [ 729 AS_IF([test -d build/$1], [ 730 AS_IF([test -f build/$1/$1.ko], [$2], [$3]) 731 ], [ 732 AC_MSG_ERROR([ 733 *** No matching source for the "$1" test, check that 734 *** both the test source and result macros refer to the same name. 735 ]) 736 ]) 737]) 738 739dnl # 740dnl # ZFS_LINUX_TEST_ERROR 741dnl # 742dnl # Generic error message which can be used when none of the expected 743dnl # kernel interfaces were detected. 744dnl # 745AC_DEFUN([ZFS_LINUX_TEST_ERROR], [ 746 AC_MSG_ERROR([ 747 *** None of the expected "$1" interfaces were detected. 748 *** This may be because your kernel version is newer than what is 749 *** supported, or you are using a patched custom kernel with 750 *** incompatible modifications. 751 *** 752 *** ZFS Version: $ZFS_META_ALIAS 753 *** Compatible Kernels: $ZFS_META_KVER_MIN - $ZFS_META_KVER_MAX 754 ]) 755]) 756 757dnl # 758dnl # ZFS_LINUX_TEST_RESULT_SYMBOL 759dnl # 760dnl # Like ZFS_LINUX_TEST_RESULT except ZFS_CHECK_SYMBOL_EXPORT is called to 761dnl # verify symbol exports, unless --enable-linux-builtin was provided to 762dnl # configure. 763dnl # 764AC_DEFUN([ZFS_LINUX_TEST_RESULT_SYMBOL], [ 765 AS_IF([ ! test -f build/$1/$1.ko], [ 766 $5 767 ], [ 768 AS_IF([test "x$enable_linux_builtin" != "xyes"], [ 769 ZFS_CHECK_SYMBOL_EXPORT([$2], [$3], [$4], [$5]) 770 ], [ 771 $4 772 ]) 773 ]) 774]) 775 776dnl # 777dnl # ZFS_LINUX_COMPILE_IFELSE 778dnl # 779AC_DEFUN([ZFS_LINUX_COMPILE_IFELSE], [ 780 ZFS_LINUX_TEST_REMOVE([conftest]) 781 782 m4_ifvaln([$1], [ZFS_LINUX_CONFTEST_C([$1], [conftest])]) 783 m4_ifvaln([$5], [ZFS_LINUX_CONFTEST_H([$5], [conftest])], 784 [ZFS_LINUX_CONFTEST_H([], [conftest])]) 785 786 ZFS_LINUX_CONFTEST_MAKEFILE([conftest], [no], 787 [m4_ifvaln([$5], [-I$PWD/build/conftest], [])]) 788 ZFS_LINUX_COMPILE([build/conftest], [$2], [$3], [$4], [], []) 789]) 790 791dnl # 792dnl # ZFS_LINUX_TRY_COMPILE 793dnl # 794dnl # $1 - global 795dnl # $2 - source 796dnl # $3 - run on success (valid .ko generated) 797dnl # $4 - run on failure (unable to compile) 798dnl # 799dnl # When configuring as builtin (--enable-linux-builtin) for kernels 800dnl # without loadable module support (CONFIG_MODULES=n) only the object 801dnl # file is created. See ZFS_LINUX_TEST_COMPILE_ALL for details. 802dnl # 803AC_DEFUN([ZFS_LINUX_TRY_COMPILE], [ 804 AS_IF([test "x$enable_linux_builtin" = "xyes"], [ 805 ZFS_LINUX_COMPILE_IFELSE( 806 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 807 [[ZFS_META_LICENSE]])], 808 [test -f build/conftest/conftest.o], [$3], [$4]) 809 ], [ 810 ZFS_LINUX_COMPILE_IFELSE( 811 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], 812 [[ZFS_META_LICENSE]])], 813 [test -f build/conftest/conftest.ko], [$3], [$4]) 814 ]) 815]) 816 817dnl # 818dnl # ZFS_CHECK_SYMBOL_EXPORT 819dnl # 820dnl # Check if a symbol is exported on not by consulting the symbols 821dnl # file, or optionally the source code. 822dnl # 823AC_DEFUN([ZFS_CHECK_SYMBOL_EXPORT], [ 824 grep -q -E '[[[:space:]]]$1[[[:space:]]]' \ 825 $LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null 826 rc=$? 827 if test $rc -ne 0; then 828 export=0 829 for file in $2; do 830 grep -q -E "EXPORT_SYMBOL.*($1)" \ 831 "$LINUX/$file" 2>/dev/null 832 rc=$? 833 if test $rc -eq 0; then 834 export=1 835 break; 836 fi 837 done 838 if test $export -eq 0; then : 839 $4 840 else : 841 $3 842 fi 843 else : 844 $3 845 fi 846]) 847 848dnl # 849dnl # ZFS_LINUX_TRY_COMPILE_SYMBOL 850dnl # 851dnl # Like ZFS_LINUX_TRY_COMPILER except ZFS_CHECK_SYMBOL_EXPORT is called 852dnl # to verify symbol exports, unless --enable-linux-builtin was provided 853dnl # to configure. 854dnl # 855AC_DEFUN([ZFS_LINUX_TRY_COMPILE_SYMBOL], [ 856 ZFS_LINUX_TRY_COMPILE([$1], [$2], [rc=0], [rc=1]) 857 if test $rc -ne 0; then : 858 $6 859 else 860 if test "x$enable_linux_builtin" != xyes; then 861 ZFS_CHECK_SYMBOL_EXPORT([$3], [$4], [rc=0], [rc=1]) 862 fi 863 if test $rc -ne 0; then : 864 $6 865 else : 866 $5 867 fi 868 fi 869]) 870 871dnl # 872dnl # ZFS_LINUX_TRY_COMPILE_HEADER 873dnl # like ZFS_LINUX_TRY_COMPILE, except the contents conftest.h are 874dnl # provided via the fifth parameter 875dnl # 876AC_DEFUN([ZFS_LINUX_TRY_COMPILE_HEADER], [ 877 ZFS_LINUX_COMPILE_IFELSE( 878 [ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]], [[ZFS_META_LICENSE]])], 879 [test -f build/conftest/conftest.ko], 880 [$3], [$4], [$5]) 881]) 882