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Update Makefile to support SukiSU, add get_cred_rcu, can_umount, and path_umount functions, and change information to reflect the new name.

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ShirkNeko
2025-04-11 20:39:43 +08:00
parent 6cf8f77b61
commit e54785c069
1 changed files with 27 additions and 32 deletions
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59
kernel/Makefile
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@@ -18,8 +18,6 @@ ccflags-y += -I$(objtree)/security/selinux -include $(srctree)/include/uapi/asm-
ccflags-y += -Wno-implicit-function-declaration -Wno-strict-prototypes -Wno-int-conversion
ccflags-y += -Wno-declaration-after-statement -Wno-unused-function
ccflags-y += -DKSU_UMOUNT
obj-$(CONFIG_KSU) += kernelsu.o
obj-$(CONFIG_KPM) += kpm/
@@ -35,13 +33,13 @@ IS_GKI := $(strip $(shell \
))
ifeq ($(IS_GKI),TRUE)
$(info -- KernelSU: Kernel version is GKI.)
$(info -- SukiSU: Kernel version is GKI.)
# GKI manual hook checks
# https://github.com/Pzqqt/android_kernel_xiaomi_marble/commit/5b8596b5604bcd0e6e12697a01136a0bb9eb0257
ifeq ($(strip $(CONFIG_KSU_MANUAL_HOOK)),y)
$(info -- KernelSU: Hooks with Manual hook!)
$(info -- SukiSU: Hooks with Manual hook!)
ifeq ($(strip $(CONFIG_KSU)),m)
$(error CONFIG_KSU_MANUAL_HOOK cannot be enabled when compiling KernelSU as LKM!)
$(error CONFIG_KSU_MANUAL_HOOK cannot be enabled when compiling SukiSU as LKM!)
endif
else
ccflags-y += -DKSU_HOOK_WITH_KPROBES
@@ -54,10 +52,10 @@ $(shell cd $(srctree)/$(src); /usr/bin/env PATH="$$PATH":/usr/bin:/usr/local/bin
KSU_GIT_VERSION := $(shell cd $(srctree)/$(src); /usr/bin/env PATH="$$PATH":/usr/bin:/usr/local/bin git rev-list --count main)
# ksu_version: major * 10000 + git version + 606 for historical reasons
$(eval KSU_VERSION=$(shell expr 10000 + $(KSU_GIT_VERSION) + 606))
$(info -- KernelSU version: $(KSU_VERSION))
$(info -- SukiSU version: $(KSU_VERSION))
ccflags-y += -DKSU_VERSION=$(KSU_VERSION)
else # If there is no .git file, the default version will be passed.
$(warning "KSU_GIT_VERSION not defined! It is better to make KernelSU a git submodule!")
$(warning "KSU_GIT_VERSION not defined! It is better to make SukiSU a git submodule!")
ccflags-y += -DKSU_VERSION=12500
endif
@@ -71,11 +69,11 @@ endif
ifdef KSU_MANAGER_PACKAGE
ccflags-y += -DKSU_MANAGER_PACKAGE=\"$(KSU_MANAGER_PACKAGE)\"
$(info -- KernelSU Manager package name: $(KSU_MANAGER_PACKAGE))
$(info -- SukiSU Manager package name: $(KSU_MANAGER_PACKAGE))
endif
$(info -- KernelSU Manager signature size: $(KSU_EXPECTED_SIZE))
$(info -- KernelSU Manager signature hash: $(KSU_EXPECTED_HASH))
$(info -- SukiSU Manager signature size: $(KSU_EXPECTED_SIZE))
$(info -- SukiSU Manager signature hash: $(KSU_EXPECTED_HASH))
$(info -- Supported Unofficial Manager: 5ec1cff (GKI) rsuntk (Non-GKI) ShirkNeko udochina (GKI and non-GKI and KPM))
KERNEL_VERSION := $(VERSION).$(PATCHLEVEL)
@@ -93,9 +91,12 @@ ATOMIC_INC_FUNC = atomic_inc_not_zero
else ifeq ($(shell grep -q "atomic_long_inc_not_zero" $(srctree)/kernel/cred.c; echo $$?),0)
ATOMIC_INC_FUNC = atomic_long_inc_not_zero
else
$(info -- SukiSU_SUSFS: Neither atomic_inc_not_zero nor atomic_long_inc_not_zero found in kernel/cred.c)
$(info -- SukiSU compat: Neither atomic_inc_not_zero nor atomic_long_inc_not_zero found in kernel/cred.c)
endif
# Inform which function is being patched
$(info -- SukiSU compat: Using $(ATOMIC_INC_FUNC) in get_cred_rcu patch.)
# 写入签名
ccflags-y += -DEXPECTED_SIZE=$(KSU_EXPECTED_SIZE)
ccflags-y += -DEXPECTED_HASH=\"$(KSU_EXPECTED_HASH)\"
@@ -139,11 +140,13 @@ ifeq ($(shell grep -q "CONFIG_KDP_CRED" $(srctree)/kernel/cred.c; echo $$?),0)
ccflags-y += -DSAMSUNG_UH_DRIVER_EXIST
endif
ccflags-y += -DKSU_COMPAT_GET_CRED_RCU
ccflags-y += -DKSU_UMOUNT
# 添加 get_cred_rcu 函数
# Add the get_cred_rcu function to cred.h if not already present
ifneq ($(shell grep -Eq "^static inline const struct cred \*get_cred_rcu" $(srctree)/include/linux/cred.h; echo $$?),0)
$(info -- SukiSU_SUSFS: adding function 'static inline const struct cred *get_cred_rcu();' to $(srctree)/include/linux/cred.h)
GET_CRED_RCU = static inline const struct cred *get_cred_rcu(const struct cred *cred)\n\
$(info -- SukiSU compat: adding function 'static inline const struct cred *get_cred_rcu(const struct cred *cred);' to $(srctree)/include/linux/cred.h)
+GET_CRED_RCU = static inline const struct cred *get_cred_rcu(const struct cred *cred)\n\
{\n\t\
struct cred *nonconst_cred = (struct cred *) cred;\n\t\
if (!cred)\n\t\t\
@@ -153,14 +156,15 @@ GET_CRED_RCU = static inline const struct cred *get_cred_rcu(const struct cred *
validate_creds(cred);\n\t\
return cred;\n\
}\n
$(shell grep -qF -- "$(GET_CRED_RCU)" $(srctree)/include/linux/cred.h || \
(printf "%s\n" "$(GET_CRED_RCU)" >> $(srctree)/include/linux/cred.h))
$(shell grep -qF "$(GET_CRED_RCU)" $(srctree)/include/linux/cred.h || sed -i '/^static inline void put_cred/i $(GET_CRED_RCU)' $(srctree)/include/linux/cred.h)
# Modify get_task_cred in cred.c
$(info -- SukiSU compat: modifying 'get_task_cred' function in $(srctree)/kernel/cred.c)
$(shell sed -i "s/!$(ATOMIC_INC_FUNC)(&((struct cred \*)cred)->usage)/!get_cred_rcu(cred)/g" $(srctree)/kernel/cred.c)
endif
# 添加 can_umount 函数
ifneq ($(shell grep -Eq "^static int can_umount" $(srctree)/fs/namespace.c; echo $$?),0)
$(info -- SukiSU_SUSFS: adding function 'static int can_umount(const struct path *path, int flags);' to $(srctree)/fs/namespace.c)
$(info -- SukiSU compat: adding function 'static int can_umount(const struct path *path, int flags);' to $(srctree)/fs/namespace.c)
CAN_UMOUNT = static int can_umount(const struct path *path, int flags)\n\
{\n\t\
struct mount *mnt = real_mount(path->mnt);\n\t\
@@ -178,13 +182,11 @@ CAN_UMOUNT = static int can_umount(const struct path *path, int flags)\n\
return -EPERM;\n\t\
return 0;\n\
}\n
$(shell grep -qF -- "$(CAN_UMOUNT)" $(srctree)/fs/namespace.c || \
(printf "%s\n" "$(CAN_UMOUNT)" >> $(srctree)/fs/namespace.c))
$(shell sed -i '/^static bool is_mnt_ns_file/i $(CAN_UMOUNT)' $(srctree)/fs/namespace.c;)
endif
# 添加 path_umount 函数
ifneq ($(shell grep -Eq "^int path_umount" $(srctree)/fs/namespace.c; echo $$?),0)
$(info -- SukiSU_SUSFS: adding function 'int path_umount(struct path *path, int flags);' to $(srctree)/fs/namespace.c)
$(info -- SukiSU compat: adding function 'int path_umount(struct path *path, int flags);' to $(srctree)/fs/namespace.c)
PATH_UMOUNT = int path_umount(struct path *path, int flags)\n\
{\n\t\
struct mount *mnt = real_mount(path->mnt);\n\t\
@@ -196,19 +198,12 @@ PATH_UMOUNT = int path_umount(struct path *path, int flags)\n\
mntput_no_expire(mnt);\n\t\
return ret;\n\
}\n
$(shell grep -qF -- "$(PATH_UMOUNT)" $(srctree)/fs/namespace.c || \
(printf "%s\n" "$(PATH_UMOUNT)" >> $(srctree)/fs/namespace.c))
$(shell sed -i '/^static bool is_mnt_ns_file/i $(PATH_UMOUNT)' $(srctree)/fs/namespace.c;)
endif
# 添加 path_umount 声明到 fs/internal.h
ifneq ($(shell grep -Eq "^int path_umount" $(srctree)/fs/internal.h; echo $$?),0)
$(info -- SukiSU_SUSFS: adding 'int path_umount(struct path *path, int flags);' to $(srctree)/fs/internal.h)
$(shell printf "\nint path_umount(struct path *path, int flags);\n" >> $(srctree)/fs/internal.h)
endif
# Do checks before compile
ifneq ($(shell grep -q "int path_umount" $(srctree)/fs/namespace.c; echo $$?),0)
$(error -- Backporting path_umount is mandatory !! Read: https://kernelsu.org/guide/how-to-integrate-for-non-gki.html#how-to-backport-path-umount)
$(shell sed -i '/^extern void __init mnt_init/a int path_umount(struct path *path, int flags);' $(srctree)/fs/internal.h;)
$(info -- SukiSU compat: adding 'int path_umount(struct path *path, int flags);' to $(srctree)/fs/internal.h)
endif