684 lines
19 KiB
Plaintext
684 lines
19 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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ZFS_AC_KERNEL
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ZFS_AC_QAT
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ZFS_AC_KERNEL_ACCESS_OK_TYPE
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ZFS_AC_TEST_MODULE
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ZFS_AC_KERNEL_MISC_MINOR
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ZFS_AC_KERNEL_OBJTOOL
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ZFS_AC_KERNEL_CONFIG
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ZFS_AC_KERNEL_CTL_NAME
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ZFS_AC_KERNEL_PDE_DATA
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ZFS_AC_KERNEL_2ARGS_VFS_FSYNC
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ZFS_AC_KERNEL_FS_STRUCT_SPINLOCK
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ZFS_AC_KERNEL_KUIDGID_T
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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_SPINLOCK_IS_RAW
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ZFS_AC_KERNEL_RWSEM_ACTIVITY
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ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT
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ZFS_AC_KERNEL_SCHED_RT_HEADER
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ZFS_AC_KERNEL_SCHED_SIGNAL_HEADER
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ZFS_AC_KERNEL_IO_SCHEDULE_TIMEOUT
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ZFS_AC_KERNEL_4ARGS_VFS_GETATTR
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ZFS_AC_KERNEL_3ARGS_VFS_GETATTR
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ZFS_AC_KERNEL_2ARGS_VFS_GETATTR
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ZFS_AC_KERNEL_USLEEP_RANGE
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ZFS_AC_KERNEL_KMEM_CACHE_ALLOCFLAGS
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ZFS_AC_KERNEL_KMEM_CACHE_CREATE_USERCOPY
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ZFS_AC_KERNEL_WAIT_ON_BIT
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ZFS_AC_KERNEL_WAIT_QUEUE_ENTRY_T
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ZFS_AC_KERNEL_WAIT_QUEUE_HEAD_ENTRY
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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_WRITE
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ZFS_AC_KERNEL_READ
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ZFS_AC_KERNEL_TIMER_FUNCTION_TIMER_LIST
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ZFS_AC_KERNEL_DECLARE_EVENT_CLASS
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ZFS_AC_KERNEL_CURRENT_BIO_TAIL
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ZFS_AC_KERNEL_SUPER_USER_NS
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ZFS_AC_KERNEL_SUBMIT_BIO
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ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_CHECK_EVENTS
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ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID
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ZFS_AC_KERNEL_TYPE_FMODE_T
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ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH
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ZFS_AC_KERNEL_BLKDEV_REREAD_PART
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ZFS_AC_KERNEL_OPEN_BDEV_EXCLUSIVE
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ZFS_AC_KERNEL_LOOKUP_BDEV
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ZFS_AC_KERNEL_INVALIDATE_BDEV_ARGS
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ZFS_AC_KERNEL_BDEV_LOGICAL_BLOCK_SIZE
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ZFS_AC_KERNEL_BDEV_PHYSICAL_BLOCK_SIZE
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ZFS_AC_KERNEL_BIO_BVEC_ITER
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ZFS_AC_KERNEL_BIO_FAILFAST_DTD
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ZFS_AC_KERNEL_BIO_SET_DEV
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ZFS_AC_KERNEL_REQ_FAILFAST_MASK
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ZFS_AC_KERNEL_REQ_OP_DISCARD
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ZFS_AC_KERNEL_REQ_OP_SECURE_ERASE
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ZFS_AC_KERNEL_REQ_OP_FLUSH
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ZFS_AC_KERNEL_BIO_BI_OPF
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ZFS_AC_KERNEL_BIO_END_IO_T_ARGS
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ZFS_AC_KERNEL_BIO_BI_STATUS
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ZFS_AC_KERNEL_BIO_RW_BARRIER
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ZFS_AC_KERNEL_BIO_RW_DISCARD
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ZFS_AC_KERNEL_BLK_QUEUE_BDI
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ZFS_AC_KERNEL_BLK_QUEUE_FLAG_CLEAR
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ZFS_AC_KERNEL_BLK_QUEUE_FLAG_SET
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ZFS_AC_KERNEL_BLK_QUEUE_FLUSH
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ZFS_AC_KERNEL_BLK_QUEUE_MAX_HW_SECTORS
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ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS
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ZFS_AC_KERNEL_BLK_QUEUE_HAVE_BIO_RW_UNPLUG
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ZFS_AC_KERNEL_BLK_QUEUE_HAVE_BLK_PLUG
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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_HAVE_BIO_SET_OP_ATTRS
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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_CONST_XATTR_HANDLER
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ZFS_AC_KERNEL_XATTR_HANDLER_NAME
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ZFS_AC_KERNEL_XATTR_HANDLER_GET
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ZFS_AC_KERNEL_XATTR_HANDLER_SET
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ZFS_AC_KERNEL_XATTR_HANDLER_LIST
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ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE
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ZFS_AC_KERNEL_POSIX_ACL_FROM_XATTR_USERNS
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ZFS_AC_KERNEL_POSIX_ACL_RELEASE
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ZFS_AC_KERNEL_SET_CACHED_ACL_USABLE
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ZFS_AC_KERNEL_POSIX_ACL_CHMOD
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ZFS_AC_KERNEL_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T
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ZFS_AC_KERNEL_POSIX_ACL_VALID_WITH_NS
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ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION
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ZFS_AC_KERNEL_INODE_OPERATIONS_PERMISSION_WITH_NAMEIDATA
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ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL
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ZFS_AC_KERNEL_INODE_OPERATIONS_CHECK_ACL_WITH_FLAGS
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ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL
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ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL
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ZFS_AC_KERNEL_INODE_OPERATIONS_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_GET_ACL_HANDLE_CACHE
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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_EVICT_INODE
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ZFS_AC_KERNEL_DIRTY_INODE_WITH_FLAGS
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ZFS_AC_KERNEL_NR_CACHED_OBJECTS
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ZFS_AC_KERNEL_FREE_CACHED_OBJECTS
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ZFS_AC_KERNEL_FALLOCATE
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ZFS_AC_KERNEL_AIO_FSYNC
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ZFS_AC_KERNEL_MKDIR_UMODE_T
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ZFS_AC_KERNEL_LOOKUP_NAMEIDATA
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ZFS_AC_KERNEL_CREATE_NAMEIDATA
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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_TRUNCATE_RANGE
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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_D_MAKE_ROOT
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ZFS_AC_KERNEL_D_OBTAIN_ALIAS
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ZFS_AC_KERNEL_D_PRUNE_ALIASES
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ZFS_AC_KERNEL_D_SET_D_OP
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ZFS_AC_KERNEL_D_REVALIDATE_NAMEIDATA
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ZFS_AC_KERNEL_CONST_DENTRY_OPERATIONS
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ZFS_AC_KERNEL_TRUNCATE_SETSIZE
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ZFS_AC_KERNEL_6ARGS_SECURITY_INODE_INIT_SECURITY
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ZFS_AC_KERNEL_CALLBACK_SECURITY_INODE_INIT_SECURITY
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ZFS_AC_KERNEL_FST_MOUNT
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ZFS_AC_KERNEL_SHRINK
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ZFS_AC_KERNEL_SHRINK_CONTROL_HAS_NID
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ZFS_AC_KERNEL_SHRINK_CONTROL_STRUCT
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ZFS_AC_KERNEL_SHRINKER_CALLBACK
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ZFS_AC_KERNEL_S_INSTANCES_LIST_HEAD
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ZFS_AC_KERNEL_S_D_OP
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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_5ARG_SGET
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ZFS_AC_KERNEL_LSEEK_EXECUTE
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ZFS_AC_KERNEL_VFS_ITERATE
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ZFS_AC_KERNEL_VFS_RW_ITERATE
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ZFS_AC_KERNEL_VFS_DIRECT_IO
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ZFS_AC_KERNEL_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_3ARG
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ZFS_AC_KERNEL_GENERIC_IO_ACCT_4ARG
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ZFS_AC_KERNEL_FPU
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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_HAVE_GENERIC_SETXATTR
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ZFS_AC_KERNEL_CURRENT_TIME
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ZFS_AC_KERNEL_GLOBAL_PAGE_STATE
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ZFS_AC_KERNEL_ACL_HAS_REFCOUNT
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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_BLK_QUEUE_DISCARD
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ZFS_AC_KERNEL_BLK_QUEUE_SECURE_ERASE
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ZFS_AC_KERNEL_KSTRTOUL
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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 # 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/$LINUX_SYMBOLS"], [
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AC_MSG_ERROR([
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*** Please make sure the kernel devel package for your distribution
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*** is installed. If you are building with a custom kernel, make sure the
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*** kernel is configured, built, and the '--with-linux=PATH' configure
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*** option refers to the location of the kernel source.])
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])
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], [
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LINUX_SYMBOLS=NONE
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])
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AC_MSG_RESULT($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([*** Cannot determine kernel version.])
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])
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], [
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AC_MSG_RESULT([Not found])
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if test "x$enable_linux_builtin" != xyes; then
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AC_MSG_ERROR([*** Cannot find UTS_RELEASE definition.])
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else
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AC_MSG_ERROR([
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*** Cannot find UTS_RELEASE definition.
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*** Please run 'make prepare' inside the kernel source tree.])
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fi
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])
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AC_MSG_RESULT([$kernsrcver])
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LINUX=${kernelsrc}
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LINUX_OBJ=${kernelbuild}
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LINUX_VERSION=${kernsrcver}
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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
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])
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dnl #
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dnl # Detect the QAT module to be built against
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dnl # QAT provides hardware acceleration for data compression:
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dnl # https://01.org/intel-quickassist-technology
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dnl # * Download and install QAT driver from the above link
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dnl # * Start QAT driver in your system:
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dnl # service qat_service start
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dnl # * 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
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dnl # * Set GZIP compression in ZFS dataset:
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dnl # zfs set compression = gzip <dataset>
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dnl # Then the data written to this ZFS pool is compressed
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dnl # by QAT accelerator automatically, and de-compressed by
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dnl # QAT when read from the pool.
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dnl # * Get QAT hardware statistics by:
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dnl # cat /proc/icp_dh895xcc_dev/qat
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dnl # * To disable QAT:
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dnl # insmod zfs.ko zfs_qat_disable=1
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dnl #
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AC_DEFUN([ZFS_AC_QAT], [
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AC_ARG_WITH([qat],
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AS_HELP_STRING([--with-qat=PATH],
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[Path to qat source]),
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AS_IF([test "$withval" = "yes"],
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AC_MSG_ERROR([--with-qat=PATH requires a PATH]),
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[qatsrc="$withval"]))
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AC_ARG_WITH([qat-obj],
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AS_HELP_STRING([--with-qat-obj=PATH],
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[Path to qat build objects]),
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[qatbuild="$withval"])
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AS_IF([test ! -z "${qatsrc}"], [
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AC_MSG_CHECKING([qat source directory])
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AC_MSG_RESULT([$qatsrc])
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QAT_SRC="${qatsrc}/quickassist"
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AS_IF([ test ! -e "$QAT_SRC/include/cpa.h"], [
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AC_MSG_ERROR([
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*** Please make sure the qat driver package is installed
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*** and specify the location of the qat source with the
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*** '--with-qat=PATH' option then try again. Failed to
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*** find cpa.h in:
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${QAT_SRC}/include])
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])
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])
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AS_IF([test ! -z "${qatsrc}"], [
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AC_MSG_CHECKING([qat build directory])
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AS_IF([test -z "$qatbuild"], [
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qatbuild="${qatsrc}/build"
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])
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AC_MSG_RESULT([$qatbuild])
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QAT_OBJ=${qatbuild}
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AS_IF([ ! test -e "$QAT_OBJ/icp_qa_al.ko" && ! test -e "$QAT_OBJ/qat_api.ko"], [
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AC_MSG_ERROR([
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*** Please make sure the qat driver is installed then try again.
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*** Failed to find icp_qa_al.ko or qat_api.ko in:
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$QAT_OBJ])
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])
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AC_SUBST(QAT_SRC)
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AC_SUBST(QAT_OBJ)
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AC_DEFINE(HAVE_QAT, 1,
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[qat is enabled and existed])
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])
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dnl #
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dnl # Detect the name used for the QAT Module.symvers file.
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dnl #
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AS_IF([test ! -z "${qatsrc}"], [
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AC_MSG_CHECKING([qat file for module symbols])
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QAT_SYMBOLS=$QAT_SRC/lookaside/access_layer/src/Module.symvers
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AS_IF([test -r $QAT_SYMBOLS], [
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AC_MSG_RESULT([$QAT_SYMBOLS])
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AC_SUBST(QAT_SYMBOLS)
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],[
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AC_MSG_ERROR([
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*** Please make sure the qat driver is installed then try again.
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*** Failed to find Module.symvers in:
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$QAT_SYMBOLS])
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])
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])
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])
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])
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dnl #
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dnl # Basic toolchain sanity check.
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dnl #
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AC_DEFUN([ZFS_AC_TEST_MODULE], [
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AC_MSG_CHECKING([whether modules can be built])
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ZFS_LINUX_TRY_COMPILE([],[],[
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AC_MSG_RESULT([yes])
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],[
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AC_MSG_RESULT([no])
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if test "x$enable_linux_builtin" != xyes; then
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AC_MSG_ERROR([*** Unable to build an empty module.])
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else
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AC_MSG_ERROR([
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*** Unable to build an empty module.
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*** Please run 'make scripts' inside the kernel source tree.])
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fi
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])
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])
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dnl #
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dnl # Certain kernel build options are not supported. These must be
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dnl # detected at configure time and cause a build failure. Otherwise
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dnl # modules may be successfully built that behave incorrectly.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_CONFIG], [
|
|
AS_IF([test "x$cross_compiling" != xyes], [
|
|
AC_RUN_IFELSE([
|
|
AC_LANG_PROGRAM([
|
|
#include "$LINUX/include/linux/license.h"
|
|
], [
|
|
return !license_is_gpl_compatible("$ZFS_META_LICENSE");
|
|
])
|
|
], [
|
|
AC_DEFINE([ZFS_IS_GPL_COMPATIBLE], [1],
|
|
[Define to 1 if GPL-only symbols can be used])
|
|
], [
|
|
])
|
|
])
|
|
|
|
ZFS_AC_KERNEL_CONFIG_THREAD_SIZE
|
|
ZFS_AC_KERNEL_CONFIG_DEBUG_LOCK_ALLOC
|
|
ZFS_AC_KERNEL_CONFIG_TRIM_UNUSED_KSYMS
|
|
ZFS_AC_KERNEL_CONFIG_ZLIB_INFLATE
|
|
ZFS_AC_KERNEL_CONFIG_ZLIB_DEFLATE
|
|
])
|
|
|
|
dnl #
|
|
dnl # Check configured THREAD_SIZE
|
|
dnl #
|
|
dnl # The stack size will vary by architecture, but as of Linux 3.15 on x86_64
|
|
dnl # the default thread stack size was increased to 16K from 8K. Therefore,
|
|
dnl # on newer kernels and some architectures stack usage optimizations can be
|
|
dnl # conditionally applied to improve performance without negatively impacting
|
|
dnl # stability.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_CONFIG_THREAD_SIZE], [
|
|
AC_MSG_CHECKING([whether kernel was built with 16K or larger stacks])
|
|
ZFS_LINUX_TRY_COMPILE([
|
|
#include <linux/module.h>
|
|
],[
|
|
#if (THREAD_SIZE < 16384)
|
|
#error "THREAD_SIZE is less than 16K"
|
|
#endif
|
|
],[
|
|
AC_MSG_RESULT([yes])
|
|
AC_DEFINE(HAVE_LARGE_STACKS, 1, [kernel has large stacks])
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # Check CONFIG_DEBUG_LOCK_ALLOC
|
|
dnl #
|
|
dnl # This is typically only set for debug kernels because it comes with
|
|
dnl # a performance penalty. However, when it is set it maps the non-GPL
|
|
dnl # symbol mutex_lock() to the GPL-only mutex_lock_nested() symbol.
|
|
dnl # This will cause a failure at link time which we'd rather know about
|
|
dnl # at compile time.
|
|
dnl #
|
|
dnl # Since we plan to pursue making mutex_lock_nested() a non-GPL symbol
|
|
dnl # with the upstream community we add a check to detect this case.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_CONFIG_DEBUG_LOCK_ALLOC], [
|
|
|
|
ZFS_LINUX_CONFIG([DEBUG_LOCK_ALLOC], [
|
|
AC_MSG_CHECKING([whether mutex_lock() is GPL-only])
|
|
tmp_flags="$EXTRA_KCFLAGS"
|
|
ZFS_LINUX_TRY_COMPILE([
|
|
#include <linux/module.h>
|
|
#include <linux/mutex.h>
|
|
|
|
MODULE_LICENSE("$ZFS_META_LICENSE");
|
|
],[
|
|
struct mutex lock;
|
|
|
|
mutex_init(&lock);
|
|
mutex_lock(&lock);
|
|
mutex_unlock(&lock);
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
],[
|
|
AC_MSG_RESULT(yes)
|
|
AC_MSG_ERROR([
|
|
*** Kernel built with CONFIG_DEBUG_LOCK_ALLOC which is incompatible
|
|
*** with the CDDL license and will prevent the module linking stage
|
|
*** from succeeding. You must rebuild your kernel without this
|
|
*** option enabled.])
|
|
])
|
|
EXTRA_KCFLAGS="$tmp_flags"
|
|
], [])
|
|
])
|
|
|
|
dnl #
|
|
dnl # Check CONFIG_TRIM_UNUSED_KSYMS
|
|
dnl #
|
|
dnl # Verify the kernel has CONFIG_TRIM_UNUSED_KSYMS disabled.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_CONFIG_TRIM_UNUSED_KSYMS], [
|
|
AC_MSG_CHECKING([whether CONFIG_TRIM_UNUSED_KSYM is disabled])
|
|
ZFS_LINUX_TRY_COMPILE([
|
|
#if defined(CONFIG_TRIM_UNUSED_KSYMS)
|
|
#error CONFIG_TRIM_UNUSED_KSYMS not defined
|
|
#endif
|
|
],[ ],[
|
|
AC_MSG_RESULT([yes])
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
AS_IF([test "x$enable_linux_builtin" != xyes], [
|
|
AC_MSG_ERROR([
|
|
*** This kernel has unused symbols trimming enabled, please disable.
|
|
*** Rebuild the kernel with CONFIG_TRIM_UNUSED_KSYMS=n set.])
|
|
])])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_CONFTEST_H
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_CONFTEST_H], [
|
|
cat - <<_ACEOF >conftest.h
|
|
$1
|
|
_ACEOF
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_CONFTEST_C
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_CONFTEST_C], [
|
|
cat confdefs.h - <<_ACEOF >conftest.c
|
|
$1
|
|
_ACEOF
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LANG_PROGRAM(C)([PROLOGUE], [BODY])
|
|
dnl #
|
|
m4_define([ZFS_LANG_PROGRAM], [
|
|
$1
|
|
int
|
|
main (void)
|
|
{
|
|
dnl Do *not* indent the following line: there may be CPP directives.
|
|
dnl Don't move the `;' right after for the same reason.
|
|
$2
|
|
;
|
|
return 0;
|
|
}
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_COMPILE_IFELSE / like AC_COMPILE_IFELSE
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_COMPILE_IFELSE], [
|
|
m4_ifvaln([$1], [ZFS_LINUX_CONFTEST_C([$1])])
|
|
m4_ifvaln([$6], [ZFS_LINUX_CONFTEST_H([$6])], [ZFS_LINUX_CONFTEST_H([])])
|
|
rm -Rf build && mkdir -p build && touch build/conftest.mod.c
|
|
echo "obj-m := conftest.o" >build/Makefile
|
|
modpost_flag=''
|
|
test "x$enable_linux_builtin" = xyes && modpost_flag='modpost=true' # fake modpost stage
|
|
AS_IF(
|
|
[AC_TRY_COMMAND(cp conftest.c conftest.h build && make [$2] -C $LINUX_OBJ EXTRA_CFLAGS="-Werror $FRAME_LARGER_THAN $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build $modpost_flag) >/dev/null && AC_TRY_COMMAND([$3])],
|
|
[$4],
|
|
[_AC_MSG_LOG_CONFTEST m4_ifvaln([$5],[$5])]
|
|
)
|
|
rm -Rf build
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_TRY_COMPILE like AC_TRY_COMPILE
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_TRY_COMPILE],
|
|
[ZFS_LINUX_COMPILE_IFELSE(
|
|
[AC_LANG_SOURCE([ZFS_LANG_PROGRAM([[$1]], [[$2]])])],
|
|
[modules],
|
|
[test -s build/conftest.o],
|
|
[$3], [$4])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_LINUX_CONFIG
|
|
dnl #
|
|
AC_DEFUN([ZFS_LINUX_CONFIG],
|
|
[AC_MSG_CHECKING([whether kernel was built with CONFIG_$1])
|
|
ZFS_LINUX_TRY_COMPILE([
|
|
#include <linux/module.h>
|
|
],[
|
|
#ifndef CONFIG_$1
|
|
#error CONFIG_$1 not #defined
|
|
#endif
|
|
],[
|
|
AC_MSG_RESULT([yes])
|
|
$2
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
$3
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # ZFS_CHECK_SYMBOL_EXPORT
|
|
dnl # check symbol exported or not
|
|
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 # like ZFS_LINUX_TRY_COMPILE, except ZFS_CHECK_SYMBOL_EXPORT
|
|
dnl # is called if not compiling for builtin
|
|
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(
|
|
[AC_LANG_SOURCE([ZFS_LANG_PROGRAM([[$1]], [[$2]])])],
|
|
[modules],
|
|
[test -s build/conftest.o],
|
|
[$3], [$4], [$5])
|
|
])
|