# When integrated in to a monolithic kernel the spl module must appear
# first.  This ensures its module initialization function is run before
# any of the other module initialization functions which depend on it.

ZFS_MODULE_CFLAGS += -std=gnu99 -Wno-declaration-after-statement
ZFS_MODULE_CFLAGS += -Wmissing-prototypes
ZFS_MODULE_CFLAGS += @KERNEL_DEBUG_CFLAGS@  @NO_FORMAT_ZERO_LENGTH@

ifneq ($(KBUILD_EXTMOD),)
zfs_include = @abs_top_srcdir@/include
icp_include = @abs_srcdir@/icp/include
zstd_include = @abs_srcdir@/zstd/include
ZFS_MODULE_CFLAGS += -include @abs_top_builddir@/zfs_config.h
ZFS_MODULE_CFLAGS += -I@abs_top_builddir@/include
src = @abs_srcdir@
obj = @abs_builddir@
else
zfs_include = $(srctree)/include/zfs
icp_include = $(src)/icp/include
zstd_include = $(src)/zstd/include
ZFS_MODULE_CFLAGS += -include $(zfs_include)/zfs_config.h
endif

ZFS_MODULE_CFLAGS += -I$(zfs_include)/os/linux/kernel
ZFS_MODULE_CFLAGS += -I$(zfs_include)/os/linux/spl
ZFS_MODULE_CFLAGS += -I$(zfs_include)/os/linux/zfs
ZFS_MODULE_CFLAGS += -I$(zfs_include)
ZFS_MODULE_CPPFLAGS += -D_KERNEL
ZFS_MODULE_CPPFLAGS += @KERNEL_DEBUG_CPPFLAGS@

# KASAN enables -Werror=frame-larger-than=1024, which
# breaks oh so many parts of our build.
ifeq ($(CONFIG_KASAN),y)
ZFS_MODULE_CFLAGS += -Wno-error=frame-larger-than=
endif

# Generated binary search code is particularly bad with this optimization.
# Oddly, range_tree.c is not affected when unrolling is not done and dsl_scan.c
# is not affected when unrolling is done.
# Disable it until the following upstream issue is resolved:
# https://github.com/llvm/llvm-project/issues/62790
ifeq ($(CONFIG_X86),y)
ifeq ($(CONFIG_CC_IS_CLANG),y)
CFLAGS_zfs/dsl_scan.o += -mllvm -x86-cmov-converter=false
CFLAGS_zfs/metaslab.o += -mllvm -x86-cmov-converter=false
CFLAGS_zfs/range_tree.o += -mllvm -x86-cmov-converter=false
CFLAGS_zfs/zap_micro.o += -mllvm -x86-cmov-converter=false
endif
endif

ifneq ($(KBUILD_EXTMOD),)
@CONFIG_QAT_TRUE@ZFS_MODULE_CFLAGS += -I@QAT_SRC@/include
@CONFIG_QAT_TRUE@KBUILD_EXTRA_SYMBOLS += @QAT_SYMBOLS@
endif

asflags-y := $(ZFS_MODULE_CFLAGS) $(ZFS_MODULE_CPPFLAGS)
ccflags-y := $(ZFS_MODULE_CFLAGS) $(ZFS_MODULE_CPPFLAGS)

ifeq ($(CONFIG_ARM64),y)
CFLAGS_REMOVE_zcommon/zfs_fletcher_aarch64_neon.o += -mgeneral-regs-only
CFLAGS_REMOVE_zfs/vdev_raidz_math_aarch64_neon.o += -mgeneral-regs-only
CFLAGS_REMOVE_zfs/vdev_raidz_math_aarch64_neonx2.o += -mgeneral-regs-only
endif

# Suppress unused-value warnings in sparc64 architecture headers
ccflags-$(CONFIG_SPARC64) += -Wno-unused-value


obj-$(CONFIG_ZFS) := spl.o zfs.o

SPL_OBJS := \
	spl-atomic.o \
	spl-condvar.o \
	spl-cred.o \
	spl-err.o \
	spl-generic.o \
	spl-kmem-cache.o \
	spl-kmem.o \
	spl-kstat.o \
	spl-proc.o \
	spl-procfs-list.o \
	spl-shrinker.o \
	spl-taskq.o \
	spl-thread.o \
	spl-trace.o \
	spl-tsd.o \
	spl-vmem.o \
	spl-xdr.o \
	spl-zlib.o \
	spl-zone.o

spl-objs += $(addprefix os/linux/spl/,$(SPL_OBJS))

zfs-objs += avl/avl.o

ICP_OBJS := \
	algs/aes/aes_impl.o \
	algs/aes/aes_impl_generic.o \
	algs/aes/aes_modes.o \
	algs/blake3/blake3.o \
	algs/blake3/blake3_generic.o \
	algs/blake3/blake3_impl.o \
	algs/edonr/edonr.o \
	algs/modes/ccm.o \
	algs/modes/gcm.o \
	algs/modes/gcm_generic.o \
	algs/modes/modes.o \
	algs/sha2/sha2_generic.o \
	algs/sha2/sha256_impl.o \
	algs/sha2/sha512_impl.o \
	algs/skein/skein.o \
	algs/skein/skein_block.o \
	algs/skein/skein_iv.o \
	api/kcf_cipher.o \
	api/kcf_ctxops.o \
	api/kcf_mac.o \
	core/kcf_callprov.o \
	core/kcf_mech_tabs.o \
	core/kcf_prov_lib.o \
	core/kcf_prov_tabs.o \
	core/kcf_sched.o \
	illumos-crypto.o \
	io/aes.o \
	io/sha2_mod.o \
	spi/kcf_spi.o

ICP_OBJS_X86_64 := \
	asm-x86_64/aes/aes_aesni.o \
	asm-x86_64/aes/aes_amd64.o \
	asm-x86_64/aes/aeskey.o \
	asm-x86_64/blake3/blake3_avx2.o \
	asm-x86_64/blake3/blake3_avx512.o \
	asm-x86_64/blake3/blake3_sse2.o \
	asm-x86_64/blake3/blake3_sse41.o \
	asm-x86_64/sha2/sha256-x86_64.o \
	asm-x86_64/sha2/sha512-x86_64.o \
	asm-x86_64/modes/aesni-gcm-x86_64.o \
	asm-x86_64/modes/gcm_pclmulqdq.o \
	asm-x86_64/modes/ghash-x86_64.o

ICP_OBJS_X86 := \
	algs/aes/aes_impl_aesni.o \
	algs/aes/aes_impl_x86-64.o \
	algs/modes/gcm_pclmulqdq.o

ICP_OBJS_ARM := \
	asm-arm/sha2/sha256-armv7.o \
	asm-arm/sha2/sha512-armv7.o

ICP_OBJS_ARM64 := \
	asm-aarch64/blake3/b3_aarch64_sse2.o \
	asm-aarch64/blake3/b3_aarch64_sse41.o \
	asm-aarch64/sha2/sha256-armv8.o \
	asm-aarch64/sha2/sha512-armv8.o

ICP_OBJS_PPC_PPC64 := \
	asm-ppc64/blake3/b3_ppc64le_sse2.o \
	asm-ppc64/blake3/b3_ppc64le_sse41.o \
	asm-ppc64/sha2/sha256-p8.o \
	asm-ppc64/sha2/sha512-p8.o \
	asm-ppc64/sha2/sha256-ppc.o \
	asm-ppc64/sha2/sha512-ppc.o

zfs-objs             += $(addprefix icp/,$(ICP_OBJS))
zfs-$(CONFIG_X86)    += $(addprefix icp/,$(ICP_OBJS_X86))
zfs-$(CONFIG_UML_X86)+= $(addprefix icp/,$(ICP_OBJS_X86))
zfs-$(CONFIG_X86_64) += $(addprefix icp/,$(ICP_OBJS_X86_64))
zfs-$(CONFIG_ARM)    += $(addprefix icp/,$(ICP_OBJS_ARM))
zfs-$(CONFIG_ARM64)  += $(addprefix icp/,$(ICP_OBJS_ARM64))
zfs-$(CONFIG_PPC)    += $(addprefix icp/,$(ICP_OBJS_PPC_PPC64))
zfs-$(CONFIG_PPC64)  += $(addprefix icp/,$(ICP_OBJS_PPC_PPC64))

$(addprefix $(obj)/icp/,$(ICP_OBJS) $(ICP_OBJS_X86) $(ICP_OBJS_X86_64) \
	$(ICP_OBJS_ARM64) $(ICP_OBJS_PPC_PPC64)) : asflags-y += -I$(icp_include) -I$(zfs_include)/os/linux/spl -I$(zfs_include)

$(addprefix $(obj)/icp/,$(ICP_OBJS) $(ICP_OBJS_X86) $(ICP_OBJS_X86_64) \
	$(ICP_OBJS_ARM64) $(ICP_OBJS_PPC_PPC64)) : ccflags-y += -I$(icp_include) -I$(zfs_include)/os/linux/spl -I$(zfs_include)

LUA_OBJS := \
	lapi.o \
	lauxlib.o \
	lbaselib.o \
	lcode.o \
	lcompat.o \
	lcorolib.o \
	lctype.o \
	ldebug.o \
	ldo.o \
	lfunc.o \
	lgc.o \
	llex.o \
	lmem.o \
	lobject.o \
	lopcodes.o \
	lparser.o \
	lstate.o \
	lstring.o \
	lstrlib.o \
	ltable.o \
	ltablib.o \
	ltm.o \
	lvm.o \
	lzio.o \
	setjmp/setjmp.o

zfs-objs += $(addprefix lua/,$(LUA_OBJS))


NVPAIR_OBJS := \
	fnvpair.o \
	nvpair.o \
	nvpair_alloc_fixed.o \
	nvpair_alloc_spl.o

zfs-objs += $(addprefix nvpair/,$(NVPAIR_OBJS))


UNICODE_OBJS := \
	u8_textprep.o \
	uconv.o

zfs-objs += $(addprefix unicode/,$(UNICODE_OBJS))


ZCOMMON_OBJS := \
	cityhash.o \
	simd_stat.o \
	zfeature_common.o \
	zfs_comutil.o \
	zfs_deleg.o \
	zfs_fletcher.o \
	zfs_fletcher_superscalar.o \
	zfs_fletcher_superscalar4.o \
	zfs_namecheck.o \
	zfs_prop.o \
	zfs_valstr.o \
	zpool_prop.o \
	zprop_common.o

ZCOMMON_OBJS_X86 := \
	zfs_fletcher_avx512.o \
	zfs_fletcher_intel.o \
	zfs_fletcher_sse.o

ZCOMMON_OBJS_ARM64 := \
	zfs_fletcher_aarch64_neon.o

zfs-objs            += $(addprefix zcommon/,$(ZCOMMON_OBJS))
zfs-$(CONFIG_X86)   += $(addprefix zcommon/,$(ZCOMMON_OBJS_X86))
zfs-$(CONFIG_UML_X86)+= $(addprefix zcommon/,$(ZCOMMON_OBJS_X86))
zfs-$(CONFIG_ARM64) += $(addprefix zcommon/,$(ZCOMMON_OBJS_ARM64))


# Zstd uses -O3 by default, so we should follow
ZFS_ZSTD_FLAGS := -O3

# -fno-tree-vectorize gets set for gcc in zstd/common/compiler.h
# Set it for other compilers, too.
ZFS_ZSTD_FLAGS += -fno-tree-vectorize

# SSE register return with SSE disabled if -march=znverX is passed
ZFS_ZSTD_FLAGS += -U__BMI__

# Quiet warnings about frame size due to unused code in unmodified zstd lib
ZFS_ZSTD_FLAGS += -Wframe-larger-than=20480

ZSTD_OBJS := \
	zfs_zstd.o \
	zstd_sparc.o

ZSTD_UPSTREAM_OBJS := \
	lib/common/entropy_common.o \
	lib/common/error_private.o \
	lib/common/fse_decompress.o \
	lib/common/pool.o \
	lib/common/zstd_common.o \
	lib/compress/fse_compress.o \
	lib/compress/hist.o \
	lib/compress/huf_compress.o \
	lib/compress/zstd_compress.o \
	lib/compress/zstd_compress_literals.o \
	lib/compress/zstd_compress_sequences.o \
	lib/compress/zstd_compress_superblock.o \
	lib/compress/zstd_double_fast.o \
	lib/compress/zstd_fast.o \
	lib/compress/zstd_lazy.o \
	lib/compress/zstd_ldm.o \
	lib/compress/zstd_opt.o \
	lib/decompress/huf_decompress.o \
	lib/decompress/zstd_ddict.o \
	lib/decompress/zstd_decompress.o \
	lib/decompress/zstd_decompress_block.o

zfs-objs += $(addprefix zstd/,$(ZSTD_OBJS) $(ZSTD_UPSTREAM_OBJS))

# Disable aarch64 neon SIMD instructions for kernel mode
$(addprefix $(obj)/zstd/,$(ZSTD_OBJS) $(ZSTD_UPSTREAM_OBJS)) : ccflags-y += -I$(zstd_include) $(ZFS_ZSTD_FLAGS)
$(addprefix $(obj)/zstd/,$(ZSTD_OBJS) $(ZSTD_UPSTREAM_OBJS)) : asflags-y += -I$(zstd_include)
$(addprefix $(obj)/zstd/,$(ZSTD_UPSTREAM_OBJS)) : ccflags-y += -include $(zstd_include)/aarch64_compat.h -include $(zstd_include)/zstd_compat_wrapper.h -Wp,-w
$(obj)/zstd/zfs_zstd.o : ccflags-y += -include $(zstd_include)/zstd_compat_wrapper.h


ZFS_OBJS := \
	abd.o \
	aggsum.o \
	arc.o \
	blake3_zfs.o \
	blkptr.o \
	bplist.o \
	bpobj.o \
	bptree.o \
	bqueue.o \
	brt.o \
	btree.o \
	dataset_kstats.o \
	dbuf.o \
	dbuf_stats.o \
	ddt.o \
	ddt_log.o \
	ddt_stats.o \
	ddt_zap.o \
	dmu.o \
	dmu_direct.o \
	dmu_diff.o \
	dmu_object.o \
	dmu_objset.o \
	dmu_recv.o \
	dmu_redact.o \
	dmu_send.o \
	dmu_traverse.o \
	dmu_tx.o \
	dmu_zfetch.o \
	dnode.o \
	dnode_sync.o \
	dsl_bookmark.o \
	dsl_crypt.o \
	dsl_dataset.o \
	dsl_deadlist.o \
	dsl_deleg.o \
	dsl_destroy.o \
	dsl_dir.o \
	dsl_pool.o \
	dsl_prop.o \
	dsl_scan.o \
	dsl_synctask.o \
	dsl_userhold.o \
	edonr_zfs.o \
	fm.o \
	gzip.o \
	hkdf.o \
	lz4.o \
	lz4_zfs.o \
	lzjb.o \
	metaslab.o \
	mmp.o \
	multilist.o \
	objlist.o \
	pathname.o \
	range_tree.o \
	refcount.o \
	rrwlock.o \
	sa.o \
	sha2_zfs.o \
	skein_zfs.o \
	spa.o \
	spa_checkpoint.o \
	spa_config.o \
	spa_errlog.o \
	spa_history.o \
	spa_log_spacemap.o \
	spa_misc.o \
	spa_stats.o \
	space_map.o \
	space_reftree.o \
	txg.o \
	uberblock.o \
	unique.o \
	vdev.o \
	vdev_draid.o \
	vdev_draid_rand.o \
	vdev_file.o \
	vdev_indirect.o \
	vdev_indirect_births.o \
	vdev_indirect_mapping.o \
	vdev_initialize.o \
	vdev_label.o \
	vdev_mirror.o \
	vdev_missing.o \
	vdev_queue.o \
	vdev_raidz.o \
	vdev_raidz_math.o \
	vdev_raidz_math_scalar.o \
	vdev_rebuild.o \
	vdev_removal.o \
	vdev_root.o \
	vdev_trim.o \
	zap.o \
	zap_leaf.o \
	zap_micro.o \
	zcp.o \
	zcp_get.o \
	zcp_global.o \
	zcp_iter.o \
	zcp_set.o \
	zcp_synctask.o \
	zfeature.o \
	zfs_byteswap.o \
	zfs_chksum.o \
	zfs_fm.o \
	zfs_fuid.o \
	zfs_impl.o \
	zfs_ioctl.o \
	zfs_log.o \
	zfs_onexit.o \
	zfs_quota.o \
	zfs_ratelimit.o \
	zfs_replay.o \
	zfs_rlock.o \
	zfs_sa.o \
	zfs_vnops.o \
	zfs_znode.o \
	zil.o \
	zio.o \
	zio_checksum.o \
	zio_compress.o \
	zio_inject.o \
	zle.o \
	zrlock.o \
	zthr.o \
	zvol.o

ZFS_OBJS_OS := \
	abd_os.o \
	arc_os.o \
	mmp_os.o \
	policy.o \
	qat.o \
	qat_compress.o \
	qat_crypt.o \
	spa_misc_os.o \
	trace.o \
	vdev_disk.o \
	vdev_raidz.o \
	vdev_label_os.o \
	zfs_acl.o \
	zfs_ctldir.o \
	zfs_debug.o \
	zfs_dir.o \
	zfs_file_os.o \
	zfs_ioctl_os.o \
	zfs_racct.o \
	zfs_sysfs.o \
	zfs_uio.o \
	zfs_vfsops.o \
	zfs_vnops_os.o \
	zfs_znode_os.o \
	zio_crypt.o \
	zpl_ctldir.o \
	zpl_export.o \
	zpl_file.o \
	zpl_file_range.o \
	zpl_inode.o \
	zpl_super.o \
	zpl_xattr.o \
	zvol_os.o

ZFS_OBJS_X86 := \
	vdev_raidz_math_avx2.o \
	vdev_raidz_math_avx512bw.o \
	vdev_raidz_math_avx512f.o \
	vdev_raidz_math_sse2.o \
	vdev_raidz_math_ssse3.o

ZFS_OBJS_ARM64 := \
	vdev_raidz_math_aarch64_neon.o \
	vdev_raidz_math_aarch64_neonx2.o

ZFS_OBJS_PPC_PPC64 := \
	vdev_raidz_math_powerpc_altivec.o

zfs-objs            += $(addprefix zfs/,$(ZFS_OBJS)) $(addprefix os/linux/zfs/,$(ZFS_OBJS_OS))
zfs-$(CONFIG_X86)   += $(addprefix zfs/,$(ZFS_OBJS_X86))
zfs-$(CONFIG_UML_X86)+= $(addprefix zfs/,$(ZFS_OBJS_X86))
zfs-$(CONFIG_ARM64) += $(addprefix zfs/,$(ZFS_OBJS_ARM64))
zfs-$(CONFIG_PPC)   += $(addprefix zfs/,$(ZFS_OBJS_PPC_PPC64))
zfs-$(CONFIG_PPC64) += $(addprefix zfs/,$(ZFS_OBJS_PPC_PPC64))

UBSAN_SANITIZE_zap_leaf.o := n
UBSAN_SANITIZE_zap_micro.o := n
UBSAN_SANITIZE_sa.o := n
UBSAN_SANITIZE_zfs/zap_micro.o := n
UBSAN_SANITIZE_zfs/sa.o := n

ifeq ($(CONFIG_ALTIVEC),y)
$(obj)/zfs/vdev_raidz_math_powerpc_altivec.o : c_flags += -maltivec
endif

# The following recipes attempt to fix out of src-tree builds, where $(src) != $(obj), so that the
# subdir %.c/%.S -> %.o targets will work as expected. The in-kernel pattern targets do not seem to
# be working on subdirs since about ~6.10
zobjdirs = $(dir $(zfs-objs)) $(dir $(spl-objs))                                             \
  $(dir $(zfs-$(CONFIG_X86))) $(dir $(zfs-$(CONFIG_UML_X86))) $(dir $(zfs-$(CONFIG_ARM64)))  \
  $(dir $(zfs-$(CONFIG_PPC64))) $(dir $(zfs-$(CONFIG_PPC)))

z_cdirs = $(sort $(filter-out lua/setjmp/ $(addprefix icp/asm-aarch64/, aes/ blake3/ modes/ sha2/) \
  $(addprefix icp/asm-x86_64/, aes/ blake3/ modes/ sha2/)                                          \
  $(addprefix icp/asm-ppc/, aes/ blake3/ modes/ sha2/)                                             \
  $(addprefix icp/asm-ppc64/, aes/ blake3/ modes/ sha2/), $(zobjdirs)))
z_sdirs = $(sort $(filter lua/setjmp/ $(addprefix icp/asm-aarch64/, aes/ blake3/ modes/ sha2/)     \
  $(addprefix icp/asm-x86_64/, aes/ blake3/ modes/ sha2/)                                          \
  $(addprefix icp/asm-ppc/, aes/ blake3/ modes/ sha2/)                                             \
  $(addprefix icp/asm-ppc64/, aes/ blake3/ modes/ sha2/), $(zobjdirs)))

define ZKMOD_C_O_MAKE_TARGET
$1%.o: $(src)/$1%.c FORCE
	$$(call if_changed_rule,cc_o_c)
	$$(call cmd,force_checksrc)
endef

define ZKMOD_S_O_MAKE_TARGET
$1%.o: $(src)/$1%.S FORCE
	$$(call if_changed_rule,as_o_S)
	$$(call cmd,force_checksrc)
endef

$(foreach target,$(z_cdirs), $(eval $(call ZKMOD_C_O_MAKE_TARGET,$(target))))
$(foreach target,$(z_sdirs), $(eval $(call ZKMOD_S_O_MAKE_TARGET,$(target))))