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https://git.proxmox.com/git/mirror_zfs.git
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066e825221
Increase the minimum supported kernel version from 2.6.32 to 3.10.
This removes support for the following Linux enterprise distributions.
Distribution | Kernel | End of Life
---------------- | ------ | -------------
Ubuntu 12.04 LTS | 3.2 | Apr 28, 2017
SLES 11 | 3.0 | Mar 32, 2019
RHEL / CentOS 6 | 2.6.32 | Nov 30, 2020
The following changes were made as part of removing support.
* Updated `configure` to enforce a minimum kernel version as
specified in the META file (Linux-Minimum: 3.10).
configure: error:
*** Cannot build against kernel version 2.6.32.
*** The minimum supported kernel version is 3.10.
* Removed all `configure` kABI checks and matching C code for
interfaces which solely predate the Linux 3.10 kernel.
* Updated all `configure` kABI checks to fail when an interface is
missing which was in the 3.10 kernel up to the latest 5.1 kernel.
Removed the HAVE_* preprocessor defines for these checks and
updated the code to unconditionally use the verified interface.
* Inverted the detection logic in several kABI checks to match
the new interface as it appears in 3.10 and newer and not the
legacy interface.
* Consolidated the following checks in to individual files. Due
the large number of changes in the checks it made sense to handle
this now. It would be desirable to group other related checks in
the same fashion, but this as left as future work.
- config/kernel-blkdev.m4 - Block device kABI checks
- config/kernel-blk-queue.m4 - Block queue kABI checks
- config/kernel-bio.m4 - Bio interface kABI checks
* Removed the kABI checks for sops->nr_cached_objects() and
sops->free_cached_objects(). These interfaces are currently unused.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9566
845 lines
23 KiB
Plaintext
845 lines
23 KiB
Plaintext
dnl #
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dnl # Default ZFS kernel configuration
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dnl #
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AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
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dnl # Setup the kernel build environment.
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ZFS_AC_KERNEL
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ZFS_AC_QAT
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dnl # Sanity checks for module building and CONFIG_* defines
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ZFS_AC_KERNEL_TEST_MODULE
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ZFS_AC_KERNEL_CONFIG_DEFINED
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dnl # Sequential ZFS_LINUX_TRY_COMPILE tests
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ZFS_AC_KERNEL_FPU_HEADER
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ZFS_AC_KERNEL_WAIT_QUEUE_ENTRY_T
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ZFS_AC_KERNEL_MISC_MINOR
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ZFS_AC_KERNEL_DECLARE_EVENT_CLASS
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dnl # Parallel ZFS_LINUX_TEST_SRC / ZFS_LINUX_TEST_RESULT tests
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ZFS_AC_KERNEL_TEST_SRC
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ZFS_AC_KERNEL_TEST_RESULT
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AS_IF([test "$LINUX_OBJ" != "$LINUX"], [
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KERNEL_MAKE="$KERNEL_MAKE O=$LINUX_OBJ"
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])
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AC_SUBST(KERNEL_MAKE)
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])
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dnl #
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dnl # Generate and compile all of the kernel API test cases to determine
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dnl # which interfaces are available. By invoking the kernel build system
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dnl # only once the compilation can be done in parallel significantly
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dnl # speeding up the process.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
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ZFS_AC_KERNEL_SRC_OBJTOOL
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ZFS_AC_KERNEL_SRC_GLOBAL_PAGE_STATE
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ZFS_AC_KERNEL_SRC_ACCESS_OK_TYPE
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ZFS_AC_KERNEL_SRC_PDE_DATA
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ZFS_AC_KERNEL_SRC_FALLOCATE
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ZFS_AC_KERNEL_SRC_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE
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ZFS_AC_KERNEL_SRC_RWSEM
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ZFS_AC_KERNEL_SRC_SCHED
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ZFS_AC_KERNEL_SRC_USLEEP_RANGE
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ZFS_AC_KERNEL_SRC_KMEM_CACHE
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ZFS_AC_KERNEL_SRC_WAIT
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ZFS_AC_KERNEL_SRC_INODE_TIMES
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ZFS_AC_KERNEL_SRC_INODE_LOCK
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ZFS_AC_KERNEL_SRC_GROUP_INFO_GID
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ZFS_AC_KERNEL_SRC_RW
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ZFS_AC_KERNEL_SRC_TIMER_SETUP
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ZFS_AC_KERNEL_SRC_SUPER_USER_NS
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ZFS_AC_KERNEL_SRC_BLOCK_DEVICE_OPERATIONS
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ZFS_AC_KERNEL_SRC_BIO
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ZFS_AC_KERNEL_SRC_BLKDEV
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ZFS_AC_KERNEL_SRC_BLK_QUEUE
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ZFS_AC_KERNEL_SRC_GET_DISK_AND_MODULE
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ZFS_AC_KERNEL_SRC_GET_DISK_RO
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ZFS_AC_KERNEL_SRC_GENERIC_READLINK_GLOBAL
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ZFS_AC_KERNEL_SRC_DISCARD_GRANULARITY
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ZFS_AC_KERNEL_SRC_INODE_OWNER_OR_CAPABLE
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ZFS_AC_KERNEL_SRC_XATTR
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ZFS_AC_KERNEL_SRC_ACL
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ZFS_AC_KERNEL_SRC_INODE_GETATTR
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ZFS_AC_KERNEL_SRC_INODE_SET_FLAGS
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ZFS_AC_KERNEL_SRC_INODE_SET_IVERSION
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ZFS_AC_KERNEL_SRC_SHOW_OPTIONS
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ZFS_AC_KERNEL_SRC_FILE_INODE
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ZFS_AC_KERNEL_SRC_FILE_DENTRY
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ZFS_AC_KERNEL_SRC_FSYNC
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ZFS_AC_KERNEL_SRC_AIO_FSYNC
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ZFS_AC_KERNEL_SRC_EVICT_INODE
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ZFS_AC_KERNEL_SRC_DIRTY_INODE
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ZFS_AC_KERNEL_SRC_SHRINKER
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ZFS_AC_KERNEL_SRC_MKDIR_UMODE_T
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ZFS_AC_KERNEL_SRC_LOOKUP_FLAGS
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ZFS_AC_KERNEL_SRC_CREATE_FLAGS
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ZFS_AC_KERNEL_SRC_GET_LINK
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ZFS_AC_KERNEL_SRC_PUT_LINK
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ZFS_AC_KERNEL_SRC_TMPFILE
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ZFS_AC_KERNEL_SRC_AUTOMOUNT
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ZFS_AC_KERNEL_SRC_ENCODE_FH_WITH_INODE
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ZFS_AC_KERNEL_SRC_COMMIT_METADATA
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ZFS_AC_KERNEL_SRC_CLEAR_INODE
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ZFS_AC_KERNEL_SRC_SETATTR_PREPARE
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ZFS_AC_KERNEL_SRC_INSERT_INODE_LOCKED
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ZFS_AC_KERNEL_SRC_DENTRY
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ZFS_AC_KERNEL_SRC_TRUNCATE_SETSIZE
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ZFS_AC_KERNEL_SRC_SECURITY_INODE
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ZFS_AC_KERNEL_SRC_FST_MOUNT
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ZFS_AC_KERNEL_SRC_BDI
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ZFS_AC_KERNEL_SRC_SET_NLINK
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ZFS_AC_KERNEL_SRC_ELEVATOR_CHANGE
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ZFS_AC_KERNEL_SRC_SGET
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ZFS_AC_KERNEL_SRC_LSEEK_EXECUTE
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ZFS_AC_KERNEL_SRC_VFS_GETATTR
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ZFS_AC_KERNEL_SRC_VFS_FSYNC_2ARGS
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ZFS_AC_KERNEL_SRC_VFS_ITERATE
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ZFS_AC_KERNEL_SRC_VFS_DIRECT_IO
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ZFS_AC_KERNEL_SRC_VFS_RW_ITERATE
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ZFS_AC_KERNEL_SRC_VFS_GENERIC_WRITE_CHECKS
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ZFS_AC_KERNEL_SRC_KMAP_ATOMIC_ARGS
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ZFS_AC_KERNEL_SRC_FOLLOW_DOWN_ONE
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ZFS_AC_KERNEL_SRC_MAKE_REQUEST_FN
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ZFS_AC_KERNEL_SRC_GENERIC_IO_ACCT
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ZFS_AC_KERNEL_SRC_FPU
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ZFS_AC_KERNEL_SRC_FMODE_T
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ZFS_AC_KERNEL_SRC_KUIDGID_T
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ZFS_AC_KERNEL_SRC_KUID_HELPERS
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ZFS_AC_KERNEL_SRC_MODULE_PARAM_CALL_CONST
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ZFS_AC_KERNEL_SRC_RENAME_WANTS_FLAGS
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ZFS_AC_KERNEL_SRC_CURRENT_TIME
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ZFS_AC_KERNEL_SRC_USERNS_CAPABILITIES
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ZFS_AC_KERNEL_SRC_IN_COMPAT_SYSCALL
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ZFS_AC_KERNEL_SRC_KTIME_GET_COARSE_REAL_TS64
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ZFS_AC_KERNEL_SRC_TOTALRAM_PAGES_FUNC
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ZFS_AC_KERNEL_SRC_TOTALHIGH_PAGES
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ZFS_AC_KERNEL_SRC_KSTRTOUL
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AC_MSG_CHECKING([for available kernel interfaces])
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ZFS_LINUX_TEST_COMPILE_ALL([kabi])
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AC_MSG_RESULT([done])
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])
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dnl #
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dnl # Check results of kernel interface tests.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
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ZFS_AC_KERNEL_ACCESS_OK_TYPE
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ZFS_AC_KERNEL_GLOBAL_PAGE_STATE
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ZFS_AC_KERNEL_OBJTOOL
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ZFS_AC_KERNEL_PDE_DATA
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ZFS_AC_KERNEL_FALLOCATE
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ZFS_AC_KERNEL_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE
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ZFS_AC_KERNEL_RWSEM
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ZFS_AC_KERNEL_SCHED
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ZFS_AC_KERNEL_USLEEP_RANGE
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ZFS_AC_KERNEL_KMEM_CACHE
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ZFS_AC_KERNEL_WAIT
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ZFS_AC_KERNEL_INODE_TIMES
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ZFS_AC_KERNEL_INODE_LOCK
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ZFS_AC_KERNEL_GROUP_INFO_GID
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ZFS_AC_KERNEL_RW
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ZFS_AC_KERNEL_TIMER_SETUP
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ZFS_AC_KERNEL_SUPER_USER_NS
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ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS
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ZFS_AC_KERNEL_BIO
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ZFS_AC_KERNEL_BLKDEV
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ZFS_AC_KERNEL_BLK_QUEUE
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ZFS_AC_KERNEL_GET_DISK_AND_MODULE
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ZFS_AC_KERNEL_GET_DISK_RO
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ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL
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ZFS_AC_KERNEL_DISCARD_GRANULARITY
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ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE
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ZFS_AC_KERNEL_XATTR
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ZFS_AC_KERNEL_ACL
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ZFS_AC_KERNEL_INODE_GETATTR
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ZFS_AC_KERNEL_INODE_SET_FLAGS
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ZFS_AC_KERNEL_INODE_SET_IVERSION
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ZFS_AC_KERNEL_SHOW_OPTIONS
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ZFS_AC_KERNEL_FILE_INODE
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ZFS_AC_KERNEL_FILE_DENTRY
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ZFS_AC_KERNEL_FSYNC
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ZFS_AC_KERNEL_AIO_FSYNC
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ZFS_AC_KERNEL_EVICT_INODE
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ZFS_AC_KERNEL_DIRTY_INODE
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ZFS_AC_KERNEL_SHRINKER
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ZFS_AC_KERNEL_MKDIR_UMODE_T
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ZFS_AC_KERNEL_LOOKUP_FLAGS
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ZFS_AC_KERNEL_CREATE_FLAGS
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ZFS_AC_KERNEL_GET_LINK
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ZFS_AC_KERNEL_PUT_LINK
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ZFS_AC_KERNEL_TMPFILE
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ZFS_AC_KERNEL_AUTOMOUNT
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ZFS_AC_KERNEL_ENCODE_FH_WITH_INODE
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ZFS_AC_KERNEL_COMMIT_METADATA
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ZFS_AC_KERNEL_CLEAR_INODE
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ZFS_AC_KERNEL_SETATTR_PREPARE
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ZFS_AC_KERNEL_INSERT_INODE_LOCKED
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ZFS_AC_KERNEL_DENTRY
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ZFS_AC_KERNEL_TRUNCATE_SETSIZE
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ZFS_AC_KERNEL_SECURITY_INODE
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ZFS_AC_KERNEL_FST_MOUNT
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ZFS_AC_KERNEL_BDI
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ZFS_AC_KERNEL_SET_NLINK
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ZFS_AC_KERNEL_ELEVATOR_CHANGE
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ZFS_AC_KERNEL_SGET
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ZFS_AC_KERNEL_LSEEK_EXECUTE
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ZFS_AC_KERNEL_VFS_GETATTR
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ZFS_AC_KERNEL_VFS_FSYNC_2ARGS
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ZFS_AC_KERNEL_VFS_ITERATE
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ZFS_AC_KERNEL_VFS_DIRECT_IO
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ZFS_AC_KERNEL_VFS_RW_ITERATE
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ZFS_AC_KERNEL_VFS_GENERIC_WRITE_CHECKS
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ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS
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ZFS_AC_KERNEL_FOLLOW_DOWN_ONE
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ZFS_AC_KERNEL_MAKE_REQUEST_FN
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ZFS_AC_KERNEL_GENERIC_IO_ACCT
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ZFS_AC_KERNEL_FPU
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ZFS_AC_KERNEL_FMODE_T
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ZFS_AC_KERNEL_KUIDGID_T
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ZFS_AC_KERNEL_KUID_HELPERS
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ZFS_AC_KERNEL_MODULE_PARAM_CALL_CONST
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ZFS_AC_KERNEL_RENAME_WANTS_FLAGS
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ZFS_AC_KERNEL_CURRENT_TIME
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ZFS_AC_KERNEL_USERNS_CAPABILITIES
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ZFS_AC_KERNEL_IN_COMPAT_SYSCALL
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ZFS_AC_KERNEL_KTIME_GET_COARSE_REAL_TS64
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ZFS_AC_KERNEL_TOTALRAM_PAGES_FUNC
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ZFS_AC_KERNEL_TOTALHIGH_PAGES
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ZFS_AC_KERNEL_KSTRTOUL
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])
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dnl #
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dnl # Detect name used for Module.symvers file in kernel
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dnl #
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AC_DEFUN([ZFS_AC_MODULE_SYMVERS], [
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modpost=$LINUX/scripts/Makefile.modpost
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AC_MSG_CHECKING([kernel file name for module symbols])
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AS_IF([test "x$enable_linux_builtin" != xyes -a -f "$modpost"], [
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AS_IF([grep -q Modules.symvers $modpost], [
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LINUX_SYMBOLS=Modules.symvers
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], [
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LINUX_SYMBOLS=Module.symvers
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])
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AS_IF([test ! -f "$LINUX_OBJ/$LINUX_SYMBOLS"], [
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AC_MSG_ERROR([
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*** Please make sure the kernel devel package for your distribution
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*** is installed. If you are building with a custom kernel, make sure
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*** the kernel is configured, built, and the '--with-linux=PATH'
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*** configure option refers to the location of the kernel source.
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])
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])
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], [
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LINUX_SYMBOLS=NONE
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])
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AC_MSG_RESULT($LINUX_SYMBOLS)
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AC_SUBST(LINUX_SYMBOLS)
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])
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dnl #
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dnl # Detect the kernel to be built against
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL], [
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AC_ARG_WITH([linux],
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AS_HELP_STRING([--with-linux=PATH],
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[Path to kernel source]),
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[kernelsrc="$withval"])
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AC_ARG_WITH(linux-obj,
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AS_HELP_STRING([--with-linux-obj=PATH],
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[Path to kernel build objects]),
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[kernelbuild="$withval"])
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AC_MSG_CHECKING([kernel source directory])
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AS_IF([test -z "$kernelsrc"], [
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AS_IF([test -e "/lib/modules/$(uname -r)/source"], [
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headersdir="/lib/modules/$(uname -r)/source"
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sourcelink=$(readlink -f "$headersdir")
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], [test -e "/lib/modules/$(uname -r)/build"], [
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headersdir="/lib/modules/$(uname -r)/build"
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sourcelink=$(readlink -f "$headersdir")
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], [
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sourcelink=$(ls -1d /usr/src/kernels/* \
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/usr/src/linux-* \
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2>/dev/null | grep -v obj | tail -1)
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])
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AS_IF([test -n "$sourcelink" && test -e ${sourcelink}], [
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kernelsrc=`readlink -f ${sourcelink}`
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], [
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kernelsrc="[Not found]"
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])
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], [
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AS_IF([test "$kernelsrc" = "NONE"], [
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kernsrcver=NONE
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])
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withlinux=yes
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])
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AC_MSG_RESULT([$kernelsrc])
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AS_IF([test ! -d "$kernelsrc"], [
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AC_MSG_ERROR([
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*** Please make sure the kernel devel package for your distribution
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*** is installed and then try again. If that fails, you can specify the
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*** location of the kernel source with the '--with-linux=PATH' option.])
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])
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AC_MSG_CHECKING([kernel build directory])
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AS_IF([test -z "$kernelbuild"], [
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AS_IF([test x$withlinux != xyes -a -e "/lib/modules/$(uname -r)/build"], [
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kernelbuild=`readlink -f /lib/modules/$(uname -r)/build`
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], [test -d ${kernelsrc}-obj/${target_cpu}/${target_cpu}], [
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kernelbuild=${kernelsrc}-obj/${target_cpu}/${target_cpu}
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], [test -d ${kernelsrc}-obj/${target_cpu}/default], [
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kernelbuild=${kernelsrc}-obj/${target_cpu}/default
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], [test -d `dirname ${kernelsrc}`/build-${target_cpu}], [
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kernelbuild=`dirname ${kernelsrc}`/build-${target_cpu}
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], [
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kernelbuild=${kernelsrc}
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])
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])
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AC_MSG_RESULT([$kernelbuild])
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AC_MSG_CHECKING([kernel source version])
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utsrelease1=$kernelbuild/include/linux/version.h
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utsrelease2=$kernelbuild/include/linux/utsrelease.h
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utsrelease3=$kernelbuild/include/generated/utsrelease.h
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AS_IF([test -r $utsrelease1 && fgrep -q UTS_RELEASE $utsrelease1], [
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utsrelease=linux/version.h
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], [test -r $utsrelease2 && fgrep -q UTS_RELEASE $utsrelease2], [
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utsrelease=linux/utsrelease.h
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], [test -r $utsrelease3 && fgrep -q UTS_RELEASE $utsrelease3], [
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utsrelease=generated/utsrelease.h
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])
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AS_IF([test "$utsrelease"], [
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kernsrcver=`(echo "#include <$utsrelease>";
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echo "kernsrcver=UTS_RELEASE") |
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${CPP} -I $kernelbuild/include - |
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grep "^kernsrcver=" | cut -d \" -f 2`
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|
|
AS_IF([test -z "$kernsrcver"], [
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AC_MSG_RESULT([Not found])
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|
AC_MSG_ERROR([
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|
*** Cannot determine kernel version.
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])
|
|
])
|
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], [
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AC_MSG_RESULT([Not found])
|
|
if test "x$enable_linux_builtin" != xyes; then
|
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AC_MSG_ERROR([
|
|
*** Cannot find UTS_RELEASE definition.
|
|
])
|
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else
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AC_MSG_ERROR([
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*** Cannot find UTS_RELEASE definition.
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|
*** Please run 'make prepare' inside the kernel source tree.])
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fi
|
|
])
|
|
|
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AC_MSG_RESULT([$kernsrcver])
|
|
|
|
AS_VERSION_COMPARE([$kernsrcver], [$ZFS_META_KVER_MIN], [
|
|
AC_MSG_ERROR([
|
|
*** Cannot build against kernel version $kernsrcver.
|
|
*** The minimum supported kernel version is $ZFS_META_KVER_MIN.
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|
])
|
|
])
|
|
|
|
LINUX=${kernelsrc}
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|
LINUX_OBJ=${kernelbuild}
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LINUX_VERSION=${kernsrcver}
|
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|
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AC_SUBST(LINUX)
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AC_SUBST(LINUX_OBJ)
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|
AC_SUBST(LINUX_VERSION)
|
|
|
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ZFS_AC_MODULE_SYMVERS
|
|
])
|
|
|
|
dnl #
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|
dnl # Detect the QAT module to be built against, QAT provides hardware
|
|
dnl # acceleration for data compression:
|
|
dnl #
|
|
dnl # https://01.org/intel-quickassist-technology
|
|
dnl #
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|
dnl # 1) Download and install QAT driver from the above link
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|
dnl # 2) Start QAT driver in your system:
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|
dnl # service qat_service start
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|
dnl # 3) Enable QAT in ZFS, e.g.:
|
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dnl # ./configure --with-qat=<qat-driver-path>/QAT1.6
|
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dnl # make
|
|
dnl # 4) Set GZIP compression in ZFS dataset:
|
|
dnl # zfs set compression = gzip <dataset>
|
|
dnl #
|
|
dnl # Then the data written to this ZFS pool is compressed by QAT accelerator
|
|
dnl # automatically, and de-compressed by QAT when read from the pool.
|
|
dnl #
|
|
dnl # 1) Get QAT hardware statistics with:
|
|
dnl # cat /proc/icp_dh895xcc_dev/qat
|
|
dnl # 2) To disable QAT:
|
|
dnl # insmod zfs.ko zfs_qat_disable=1
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_QAT], [
|
|
AC_ARG_WITH([qat],
|
|
AS_HELP_STRING([--with-qat=PATH],
|
|
[Path to qat source]),
|
|
AS_IF([test "$withval" = "yes"],
|
|
AC_MSG_ERROR([--with-qat=PATH requires a PATH]),
|
|
[qatsrc="$withval"]))
|
|
|
|
AC_ARG_WITH([qat-obj],
|
|
AS_HELP_STRING([--with-qat-obj=PATH],
|
|
[Path to qat build objects]),
|
|
[qatbuild="$withval"])
|
|
|
|
AS_IF([test ! -z "${qatsrc}"], [
|
|
AC_MSG_CHECKING([qat source directory])
|
|
AC_MSG_RESULT([$qatsrc])
|
|
QAT_SRC="${qatsrc}/quickassist"
|
|
AS_IF([ test ! -e "$QAT_SRC/include/cpa.h"], [
|
|
AC_MSG_ERROR([
|
|
*** Please make sure the qat driver package is installed
|
|
*** and specify the location of the qat source with the
|
|
*** '--with-qat=PATH' option then try again. Failed to
|
|
*** find cpa.h in:
|
|
${QAT_SRC}/include])
|
|
])
|
|
])
|
|
|
|
AS_IF([test ! -z "${qatsrc}"], [
|
|
AC_MSG_CHECKING([qat build directory])
|
|
AS_IF([test -z "$qatbuild"], [
|
|
qatbuild="${qatsrc}/build"
|
|
])
|
|
|
|
AC_MSG_RESULT([$qatbuild])
|
|
QAT_OBJ=${qatbuild}
|
|
AS_IF([ ! test -e "$QAT_OBJ/icp_qa_al.ko" && ! test -e "$QAT_OBJ/qat_api.ko"], [
|
|
AC_MSG_ERROR([
|
|
*** Please make sure the qat driver is installed then try again.
|
|
*** Failed to find icp_qa_al.ko or qat_api.ko in:
|
|
$QAT_OBJ])
|
|
])
|
|
|
|
AC_SUBST(QAT_SRC)
|
|
AC_SUBST(QAT_OBJ)
|
|
|
|
AC_DEFINE(HAVE_QAT, 1,
|
|
[qat is enabled and existed])
|
|
])
|
|
|
|
dnl #
|
|
dnl # Detect the name used for the QAT Module.symvers file.
|
|
dnl #
|
|
AS_IF([test ! -z "${qatsrc}"], [
|
|
AC_MSG_CHECKING([qat file for module symbols])
|
|
QAT_SYMBOLS=$QAT_SRC/lookaside/access_layer/src/Module.symvers
|
|
|
|
AS_IF([test -r $QAT_SYMBOLS], [
|
|
AC_MSG_RESULT([$QAT_SYMBOLS])
|
|
AC_SUBST(QAT_SYMBOLS)
|
|
],[
|
|
AC_MSG_ERROR([
|
|
*** Please make sure the qat driver is installed then try again.
|
|
*** Failed to find Module.symvers in:
|
|
$QAT_SYMBOLS
|
|
])
|
|
])
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # Basic toolchain sanity check.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_TEST_MODULE], [
|
|
AC_MSG_CHECKING([whether modules can be built])
|
|
ZFS_LINUX_TRY_COMPILE([], [], [
|
|
AC_MSG_RESULT([yes])
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
if test "x$enable_linux_builtin" != xyes; then
|
|
AC_MSG_ERROR([
|
|
*** Unable to build an empty module.
|
|
])
|
|
else
|
|
AC_MSG_ERROR([
|
|
*** Unable to build an empty module.
|
|
*** Please run 'make scripts' inside the kernel source tree.])
|
|
fi
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_CONFTEST_H
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_CONFTEST_H], [
|
|
test -d build/$2 || mkdir -p build/$2
|
|
cat - <<_ACEOF >build/$2/$2.h
|
|
$1
|
|
_ACEOF
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_CONFTEST_C
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_CONFTEST_C], [
|
|
test -d build/$2 || mkdir -p build/$2
|
|
cat confdefs.h - <<_ACEOF >build/$2/$2.c
|
|
$1
|
|
_ACEOF
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_CONFTEST_MAKEFILE
|
|
dnl #
|
|
dnl # $1 - test case name
|
|
dnl # $2 - add to top-level Makefile
|
|
dnl # $3 - additional build flags
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_CONFTEST_MAKEFILE], [
|
|
test -d build || mkdir -p build
|
|
test -d build/$1 || mkdir -p build/$1
|
|
|
|
file=build/$1/Makefile
|
|
|
|
dnl # Example command line to manually build source.
|
|
cat - <<_ACEOF >$file
|
|
# Example command line to manually build source
|
|
# make modules -C $LINUX_OBJ $ARCH_UM M=$PWD/build/$1
|
|
|
|
ccflags-y := -Werror $FRAME_LARGER_THAN
|
|
_ACEOF
|
|
|
|
dnl # Additional custom CFLAGS as requested.
|
|
m4_ifval($3, [echo "ccflags-y += $3" >>$file], [])
|
|
|
|
dnl # Test case source
|
|
echo "obj-m := $1.o" >>$file
|
|
|
|
AS_IF([test "x$2" = "xyes"], [echo "obj-m += $1/" >>build/Makefile], [])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TEST_PROGRAM(C)([PROLOGUE], [BODY])
|
|
dnl #
|
|
m4_define([ZFS_LINUX_TEST_PROGRAM], [
|
|
$1
|
|
int
|
|
main (void)
|
|
{
|
|
$2
|
|
;
|
|
return 0;
|
|
}
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TEST_REMOVE
|
|
dnl #
|
|
dnl # Removes the specified test source and results.
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TEST_REMOVE], [
|
|
test -d build/$1 && rm -Rf build/$1
|
|
test -f build/Makefile && sed '/$1/d' build/Makefile
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_COMPILE
|
|
dnl #
|
|
dnl # $1 - build dir
|
|
dnl # $2 - test command
|
|
dnl # $3 - pass command
|
|
dnl # $4 - fail command
|
|
dnl # $5 - set KBUILD_MODPOST_NOFINAL='yes'
|
|
dnl # $6 - set KBUILD_MODPOST_WARN='yes'
|
|
dnl #
|
|
dnl # Used internally by ZFS_LINUX_TEST_{COMPILE,MODPOST}
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_COMPILE], [
|
|
AC_TRY_COMMAND([
|
|
KBUILD_MODPOST_NOFINAL="$5" KBUILD_MODPOST_WARN="$6"
|
|
make modules -k -j$TEST_JOBS -C $LINUX_OBJ $ARCH_UM
|
|
M=$PWD/$1 &>$1/build.log])
|
|
AS_IF([AC_TRY_COMMAND([$2])], [$3], [$4])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TEST_COMPILE
|
|
dnl #
|
|
dnl # Perform a full compile excluding the final modpost phase.
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TEST_COMPILE], [
|
|
ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [
|
|
mv $2/Makefile $2/Makefile.compile.$1
|
|
mv $2/build.log $2/build.log.$1
|
|
],[
|
|
AC_MSG_ERROR([
|
|
*** Unable to compile test source to determine kernel interfaces.])
|
|
], [yes], [])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TEST_MODPOST
|
|
dnl #
|
|
dnl # Perform a full compile including the modpost phase. This may
|
|
dnl # be an incremental build if the objects have already been built.
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TEST_MODPOST], [
|
|
ZFS_LINUX_COMPILE([$2], [test -f $2/build.log], [
|
|
mv $2/Makefile $2/Makefile.modpost.$1
|
|
cat $2/build.log >>build/build.log.$1
|
|
],[
|
|
AC_MSG_ERROR([
|
|
*** Unable to modpost test source to determine kernel interfaces.])
|
|
], [], [yes])
|
|
])
|
|
|
|
dnl #
|
|
dnl # Perform the compilation of the test cases in two phases.
|
|
dnl #
|
|
dnl # Phase 1) attempt to build the object files for all of the tests
|
|
dnl # defined by the ZFS_LINUX_TEST_SRC macro. But do not
|
|
dnl # perform the final modpost stage.
|
|
dnl #
|
|
dnl # Phase 2) disable all tests which failed the initial compilation,
|
|
dnl # then invoke the final modpost step for the remaining tests.
|
|
dnl #
|
|
dnl # This allows us efficiently build the test cases in parallel while
|
|
dnl # remaining resilient to build failures which are expected when
|
|
dnl # detecting the available kernel interfaces.
|
|
dnl #
|
|
dnl # The maximum allowed parallelism can be controlled by setting the
|
|
dnl # TEST_JOBS environment variable. Otherwise, it default to $(nproc).
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TEST_COMPILE_ALL], [
|
|
dnl # Phase 1 - Compilation only, final linking is skipped.
|
|
ZFS_LINUX_TEST_COMPILE([$1], [build])
|
|
|
|
dnl #
|
|
dnl # Phase 2 - When building external modules disable test cases
|
|
dnl # which failed to compile and invoke modpost to verify the
|
|
dnl # final linking.
|
|
dnl #
|
|
dnl # Test names suffixed with '_license' call modpost independently
|
|
dnl # to ensure that a single incompatibility does not result in the
|
|
dnl # modpost phase exiting early. This check is not performed on
|
|
dnl # every symbol since the majority are compatible and doing so
|
|
dnl # would significantly slow down this phase.
|
|
dnl #
|
|
dnl # When configuring for builtin (--enable-linux-builtin)
|
|
dnl # fake the linking step artificially create the expected .ko
|
|
dnl # files for tests which did compile. This is required for
|
|
dnl # kernels which do not have loadable module support or have
|
|
dnl # not yet been built.
|
|
dnl #
|
|
AS_IF([test "x$enable_linux_builtin" = "xno"], [
|
|
for dir in $(awk '/^obj-m/ { print [$]3 }' \
|
|
build/Makefile.compile.$1); do
|
|
name=${dir%/}
|
|
AS_IF([test -f build/$name/$name.o], [
|
|
AS_IF([test "${name##*_}" = "license"], [
|
|
ZFS_LINUX_TEST_MODPOST([$1],
|
|
[build/$name])
|
|
echo "obj-n += $dir" >>build/Makefile
|
|
], [
|
|
echo "obj-m += $dir" >>build/Makefile
|
|
])
|
|
], [
|
|
echo "obj-n += $dir" >>build/Makefile
|
|
])
|
|
done
|
|
|
|
ZFS_LINUX_TEST_MODPOST([$1], [build])
|
|
], [
|
|
for dir in $(awk '/^obj-m/ { print [$]3 }' \
|
|
build/Makefile.compile.$1); do
|
|
name=${dir%/}
|
|
AS_IF([test -f build/$name/$name.o], [
|
|
touch build/$name/$name.ko
|
|
])
|
|
done
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TEST_SRC
|
|
dnl #
|
|
dnl # $1 - name
|
|
dnl # $2 - global
|
|
dnl # $3 - source
|
|
dnl # $4 - extra cflags
|
|
dnl # $5 - check license-compatibility
|
|
dnl #
|
|
dnl # N.B because all of the test cases are compiled in parallel they
|
|
dnl # must never depend on the results of previous tests. Each test
|
|
dnl # needs to be entirely independent.
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TEST_SRC], [
|
|
ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM([[$2]], [[$3]])], [$1])
|
|
ZFS_LINUX_CONFTEST_MAKEFILE([$1], [yes], [$4])
|
|
|
|
AS_IF([ test -n "$5" ], [
|
|
ZFS_LINUX_CONFTEST_C([ZFS_LINUX_TEST_PROGRAM([[
|
|
#include <linux/module.h>
|
|
MODULE_LICENSE("$5");
|
|
$2]], [[$3]])], [$1_license])
|
|
ZFS_LINUX_CONFTEST_MAKEFILE([$1_license], [yes], [$4])
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TEST_RESULT
|
|
dnl #
|
|
dnl # $1 - name of a test source (ZFS_LINUX_TEST_SRC)
|
|
dnl # $2 - run on success (valid .ko generated)
|
|
dnl # $3 - run on failure (unable to compile)
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TEST_RESULT], [
|
|
AS_IF([test -d build/$1], [
|
|
AS_IF([test -f build/$1/$1.ko], [$2], [$3])
|
|
], [
|
|
AC_MSG_ERROR([
|
|
*** No matching source for the "$1" test, check that
|
|
*** both the test source and result macros refer to the same name.
|
|
])
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TEST_ERROR
|
|
dnl #
|
|
dnl # Generic error message which can be used when none of the expected
|
|
dnl # kernel interfaces were detected.
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TEST_ERROR], [
|
|
AC_MSG_ERROR([
|
|
*** None of the expected "$1" interfaces were detected.
|
|
*** This may be because your kernel version is newer than what is
|
|
*** supported, or you are using a patched custom kernel with
|
|
*** incompatible modifications.
|
|
***
|
|
*** ZFS Version: $ZFS_META_ALIAS
|
|
*** Compatible Kernels: $ZFS_META_KVER_MIN - $ZFS_META_KVER_MAX
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TEST_RESULT_SYMBOL
|
|
dnl #
|
|
dnl # Like ZFS_LINUX_TEST_RESULT except ZFS_CHECK_SYMBOL_EXPORT is called to
|
|
dnl # verify symbol exports, unless --enable-linux-builtin was provided to
|
|
dnl # configure.
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TEST_RESULT_SYMBOL], [
|
|
AS_IF([ ! test -f build/$1/$1.ko], [
|
|
$5
|
|
], [
|
|
AS_IF([test "x$enable_linux_builtin" != "xyes"], [
|
|
ZFS_CHECK_SYMBOL_EXPORT([$2], [$3], [$4], [$5])
|
|
], [
|
|
$4
|
|
])
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_COMPILE_IFELSE
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_COMPILE_IFELSE], [
|
|
ZFS_LINUX_TEST_REMOVE([conftest])
|
|
|
|
m4_ifvaln([$1], [ZFS_LINUX_CONFTEST_C([$1], [conftest])])
|
|
m4_ifvaln([$5], [ZFS_LINUX_CONFTEST_H([$5], [conftest])],
|
|
[ZFS_LINUX_CONFTEST_H([], [conftest])])
|
|
|
|
ZFS_LINUX_CONFTEST_MAKEFILE([conftest], [no],
|
|
[m4_ifvaln([$5], [-I$PWD/build/conftest], [])])
|
|
ZFS_LINUX_COMPILE([build/conftest], [$2], [$3], [$4], [], [])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TRY_COMPILE
|
|
dnl #
|
|
dnl # $1 - global
|
|
dnl # $2 - source
|
|
dnl # $3 - run on success (valid .ko generated)
|
|
dnl # $4 - run on failure (unable to compile)
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TRY_COMPILE], [
|
|
ZFS_LINUX_COMPILE_IFELSE(
|
|
[ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]])],
|
|
[test -f build/conftest/conftest.ko],
|
|
[$3], [$4])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_CHECK_SYMBOL_EXPORT
|
|
dnl #
|
|
dnl # Check if a symbol is exported on not by consulting the symbols
|
|
dnl # file, or optionally the source code.
|
|
dnl #
|
|
AC_DEFUN([ZFS_CHECK_SYMBOL_EXPORT], [
|
|
grep -q -E '[[[:space:]]]$1[[[:space:]]]' \
|
|
$LINUX_OBJ/$LINUX_SYMBOLS 2>/dev/null
|
|
rc=$?
|
|
if test $rc -ne 0; then
|
|
export=0
|
|
for file in $2; do
|
|
grep -q -E "EXPORT_SYMBOL.*($1)" \
|
|
"$LINUX/$file" 2>/dev/null
|
|
rc=$?
|
|
if test $rc -eq 0; then
|
|
export=1
|
|
break;
|
|
fi
|
|
done
|
|
if test $export -eq 0; then :
|
|
$4
|
|
else :
|
|
$3
|
|
fi
|
|
else :
|
|
$3
|
|
fi
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TRY_COMPILE_SYMBOL
|
|
dnl #
|
|
dnl # Like ZFS_LINUX_TRY_COMPILER except ZFS_CHECK_SYMBOL_EXPORT is called
|
|
dnl # to verify symbol exports, unless --enable-linux-builtin was provided
|
|
dnl # to configure.
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TRY_COMPILE_SYMBOL], [
|
|
ZFS_LINUX_TRY_COMPILE([$1], [$2], [rc=0], [rc=1])
|
|
if test $rc -ne 0; then :
|
|
$6
|
|
else
|
|
if test "x$enable_linux_builtin" != xyes; then
|
|
ZFS_CHECK_SYMBOL_EXPORT([$3], [$4], [rc=0], [rc=1])
|
|
fi
|
|
if test $rc -ne 0; then :
|
|
$6
|
|
else :
|
|
$5
|
|
fi
|
|
fi
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TRY_COMPILE_HEADER
|
|
dnl # like ZFS_LINUX_TRY_COMPILE, except the contents conftest.h are
|
|
dnl # provided via the fifth parameter
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TRY_COMPILE_HEADER], [
|
|
ZFS_LINUX_COMPILE_IFELSE(
|
|
[ZFS_LINUX_TEST_PROGRAM([[$1]], [[$2]])],
|
|
[test -f build/conftest/conftest.ko],
|
|
[$3], [$4], [$5])
|
|
])
|