kernelsu-objs := ksu.o
kernelsu-objs += allowlist.o
kernelsu-objs += dynamic_manager.o
kernelsu-objs += apk_sign.o
kernelsu-objs += sucompat.o
kernelsu-objs += pkg_observer.o
kernelsu-objs += core_hook.o
kernelsu-objs += supercalls.o
kernelsu-objs += feature.o
kernelsu-objs += ksud.o
kernelsu-objs += embed_ksud.o
kernelsu-objs += seccomp_cache.o
kernelsu-objs += kernel_compat.o
kernelsu-objs += file_wrapper.o
kernelsu-objs += throne_tracker.o
kernelsu-objs += throne_comm.o
kernelsu-objs += sulog.o

ifeq ($(CONFIG_KSU_MANUAL_SU), y)
ccflags-y += -DCONFIG_KSU_MANUAL_SU
kernelsu-objs += manual_su.o
endif

kernelsu-objs += selinux/selinux.o
kernelsu-objs += selinux/sepolicy.o
kernelsu-objs += selinux/rules.o

ccflags-y += -I$(srctree)/security/selinux -I$(srctree)/security/selinux/include
ccflags-y += -I$(objtree)/security/selinux -include $(srctree)/include/uapi/asm-generic/errno.h

obj-$(CONFIG_KSU) += kernelsu.o

obj-$(CONFIG_KPM) += kpm/

REPO_OWNER := SukiSU-Ultra
REPO_NAME := SukiSU-Ultra
REPO_BRANCH := main
KSU_VERSION_API := 4.0.0

GIT_BIN := /usr/bin/env PATH="$$PATH":/usr/bin:/usr/local/bin git
CURL_BIN := /usr/bin/env PATH="$$PATH":/usr/bin:/usr/local/bin curl

KSU_GITHUB_VERSION := $(shell $(CURL_BIN) -s "https://api.github.com/repos/$(REPO_OWNER)/$(REPO_NAME)/releases/latest" | grep '"tag_name":' | sed -E 's/.*"v([^"]+)".*/\1/')
KSU_GITHUB_VERSION_COMMIT := $(shell $(CURL_BIN) -sI "https://api.github.com/repos/$(REPO_OWNER)/$(REPO_NAME)/commits?sha=$(REPO_BRANCH)&per_page=1" | grep -i "link:" | sed -n 's/.*page=\([0-9]*\)>; rel="last".*/\1/p')

ifeq ($(findstring $(srctree),$(src)),$(srctree))
  KSU_SRC := $(src)
else
  KSU_SRC := $(srctree)/$(src)
endif

LOCAL_GIT_EXISTS := $(shell test -e $(KSU_SRC)/../.git && echo 1 || echo 0)

define get_ksu_version_full
v$1-$(shell cd $(KSU_SRC); $(GIT_BIN) rev-parse --short=8 HEAD)@$(shell cd $(KSU_SRC); $(GIT_BIN) rev-parse --abbrev-ref HEAD)
endef

ifeq ($(KSU_GITHUB_VERSION_COMMIT),)
  ifeq ($(LOCAL_GIT_EXISTS),1)
    $(shell cd $(KSU_SRC); [ -f ../.git/shallow ] && $(GIT_BIN) fetch --unshallow)
    KSU_LOCAL_VERSION := $(shell cd $(KSU_SRC); $(GIT_BIN) rev-list --count $(REPO_BRANCH))
    KSU_VERSION := $(shell expr 40000 + $(KSU_LOCAL_VERSION) - 2815)
    $(info -- $(REPO_NAME) version (local .git): $(KSU_VERSION))
  else
    KSU_VERSION := 13000
    $(warning -- Could not fetch version online or via local .git! Using fallback version: $(KSU_VERSION))
  endif
else
  KSU_VERSION := $(shell expr 40000 + $(KSU_GITHUB_VERSION_COMMIT) - 2815)
  $(info -- $(REPO_NAME) version (GitHub): $(KSU_VERSION))
endif

ifeq ($(KSU_GITHUB_VERSION),)
  ifeq ($(LOCAL_GIT_EXISTS),1)
    $(shell cd $(KSU_SRC); [ -f ../.git/shallow ] && $(GIT_BIN) fetch --unshallow)
    KSU_VERSION_FULL := $(call get_ksu_version_full,$(KSU_VERSION_API))
    $(info -- $(REPO_NAME) version (local .git): $(KSU_VERSION_FULL))
    $(info -- $(REPO_NAME) Formatted version (local .git): $(KSU_VERSION))
  else
    KSU_VERSION_FULL := v$(KSU_VERSION_API)-$(REPO_NAME)-unknown@unknown
    $(warning -- $(REPO_NAME) version: $(KSU_VERSION_FULL))
  endif
else
  $(shell cd $(KSU_SRC); [ -f ../.git/shallow ] && $(GIT_BIN) fetch --unshallow)
  KSU_VERSION_FULL := $(call get_ksu_version_full,$(KSU_GITHUB_VERSION))
  $(info -- $(REPO_NAME) version (Github): $(KSU_VERSION_FULL))
endif

ccflags-y += -DKSU_VERSION=$(KSU_VERSION)
ccflags-y += -DKSU_VERSION_FULL=\"$(KSU_VERSION_FULL)\"

ifeq ($(CONFIG_KSU_MANUAL_HOOK), y)
ccflags-y += -DKSU_MANUAL_HOOK
$(info -- SukiSU: KSU_MANUAL_HOOK)
else
ccflags-y += -DKSU_HAVE_SYSCALL_TRACEPOINTS_HOOK
ccflags-y += -DKSU_KPROBES_HOOK
$(info -- SukiSU: KSU_TRACEPOINT_HOOK)
endif

KERNEL_VERSION := $(VERSION).$(PATCHLEVEL)
KERNEL_TYPE := Non-GKI
# Check for GKI 2.0 (5.10+ or 6.x+)
ifneq ($(shell test \( $(VERSION) -ge 5 -a $(PATCHLEVEL) -ge 10 \) -o $(VERSION) -ge 6; echo $$?),0)
# Check for GKI 1.0 (5.4)
ifeq ($(shell test $(VERSION)-$(PATCHLEVEL) = 5-4; echo $$?),0)
KERNEL_TYPE := GKI 1.0
endif
else
KERNEL_TYPE := GKI 2.0
endif
$(info -- KERNEL_VERSION: $(KERNEL_VERSION))
$(info -- KERNEL_TYPE: $(KERNEL_TYPE))

# Check if KPM is enabled
ifeq ($(CONFIG_KPM), y)
$(info -- KPM is enabled)
else
$(info -- KPM is disabled)
endif

# Handle optional backports
ifeq ($(shell grep -q "strncpy_from_user_nofault" $(srctree)/include/linux/uaccess.h; echo $$?),0)
ccflags-y += -DKSU_OPTIONAL_STRNCPY
endif
ifeq ($(shell grep -q "ssize_t kernel_read" $(srctree)/fs/read_write.c; echo $$?),0)
ccflags-y += -DKSU_OPTIONAL_KERNEL_READ
endif
ifeq ($(shell grep "ssize_t kernel_write" $(srctree)/fs/read_write.c | grep -q "const void" ; echo $$?),0)
ccflags-y += -DKSU_OPTIONAL_KERNEL_WRITE
endif
ifeq ($(shell grep -q "inode_security_struct\s\+\*selinux_inode" $(srctree)/security/selinux/include/objsec.h; echo $$?),0)
ccflags-y += -DKSU_OPTIONAL_SELINUX_INODE
endif
ifeq ($(shell grep -q "int\s\+path_umount" $(srctree)/fs/namespace.c; echo $$?),0)
ccflags-y += -DKSU_HAS_PATH_UMOUNT
ifneq ($(shell grep -Eq "^int path_umount" $(srctree)/fs/internal.h; echo $$?),0)
$(shell sed -i '/^extern void __init mnt_init/a int path_umount(struct path *path, int flags);' $(srctree)/fs/internal.h;)
$(info -- KernelSU: SusFS: Adding 'int path_umount(struct path *path, int flags);' to $(srctree)/fs/internal.h)
endif
endif
# Checks Samsung UH drivers
ifeq ($(shell grep -q "CONFIG_KDP_CRED" $(srctree)/kernel/cred.c; echo $$?),0)
ccflags-y += -DSAMSUNG_UH_DRIVER_EXIST
endif

# Samsung SELinux Porting
ifeq ($(shell grep -q "SEC_SELINUX_PORTING_COMMON" $(srctree)/security/selinux/avc.c; echo $$?),0)
ccflags-y += -DSAMSUNG_SELINUX_PORTING
endif

# Function proc_ops check
ifeq ($(shell grep -q "struct proc_ops " $(srctree)/include/linux/proc_fs.h; echo $$?),0)
ccflags-y += -DKSU_COMPAT_HAS_PROC_OPS
endif

# Struct selinux_state check
ifeq ($(shell grep -q "struct selinux_state " $(srctree)/security/selinux/include/security.h; echo $$?),0)
ccflags-y += -DKSU_COMPAT_HAS_SELINUX_STATE
endif

# Custom Signs
ifdef KSU_EXPECTED_SIZE
ccflags-y += -DEXPECTED_SIZE=$(KSU_EXPECTED_SIZE)
$(info -- Custom KernelSU Manager signature size: $(KSU_EXPECTED_SIZE))
endif

ifdef KSU_EXPECTED_HASH
ccflags-y += -DEXPECTED_HASH=\"$(KSU_EXPECTED_HASH)\"
$(info -- Custom KernelSU Manager signature hash: $(KSU_EXPECTED_HASH))
endif

ifdef KSU_MANAGER_PACKAGE
ccflags-y += -DKSU_MANAGER_PACKAGE=\"$(KSU_MANAGER_PACKAGE)\"
$(info -- SukiSU Manager package name: $(KSU_MANAGER_PACKAGE))
endif

$(info -- Supported Unofficial Manager: 5ec1cff (GKI) rsuntk (Non-GKI) ShirkNeko udochina (GKI and non-GKI and KPM))

ccflags-y += -Wno-implicit-function-declaration -Wno-strict-prototypes -Wno-int-conversion -Wno-gcc-compat
ccflags-y += -Wno-declaration-after-statement -Wno-unused-function -Wno-unused-variable

## For susfs stuff ##
ifeq ($(shell test -e $(srctree)/fs/susfs.c; echo $$?),0)
$(eval SUSFS_VERSION=$(shell cat $(srctree)/include/linux/susfs.h | grep -E '^#define SUSFS_VERSION' | cut -d' ' -f3 | sed 's/"//g'))
$(info )
$(info -- SUSFS_VERSION: $(SUSFS_VERSION))
else
$(info -- You have not integrate susfs in your kernel.)
$(info -- Read: https://gitlab.com/simonpunk/susfs4ksu)
endif

# Keep a new line here!! Because someone may append config