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Add binder and ashmem kernel drivers as out-of-tree modules

Browse source 
Based on code from https://github.com/hungys/binder-for-linux
This commit is contained in:
Simon Fels 2016-08-19 09:11:29 +02:00
commit 34e5e70926
12 changed files with 5502 additions and 0 deletions
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19
kernel/binder/Makefile Normal file
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ccflags-y += -I$(src)
ifneq ($(KERNELRELEASE),)
obj-m := binder_linux.o
binder_linux-y := deps.o binder.o
$(obj)/deps.o: $(src)/deps.h
$(obj)/deps.h: $(src)/gen_deps.sh
sudo $(src)/gen_deps.sh > $@
else
KERNEL_SRC ?= /lib/modules/$(shell uname -r)/build
all:
$(MAKE) -C $(KERNEL_SRC) V=0 M=$$PWD
clean:
rm -rf deps.h *.o *.ko *.mod.c *.symvers *.order .*.cmd .tmp_versions
endif

3703
kernel/binder/binder.c Normal file
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352
kernel/binder/binder.h Normal file
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/*
* Copyright (C) 2008 Google, Inc.
*
* Based on, but no longer compatible with, the original
* OpenBinder.org binder driver interface, which is:
*
* Copyright (c) 2005 Palmsource, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef _UAPI_LINUX_BINDER_H
#define _UAPI_LINUX_BINDER_H
#include <linux/types.h>
#include <linux/ioctl.h>
#define B_PACK_CHARS(c1, c2, c3, c4) \
((((c1)<<24)) | (((c2)<<16)) | (((c3)<<8)) | (c4))
#define B_TYPE_LARGE 0x85
enum {
BINDER_TYPE_BINDER = B_PACK_CHARS('s', 'b', '*', B_TYPE_LARGE),
BINDER_TYPE_WEAK_BINDER = B_PACK_CHARS('w', 'b', '*', B_TYPE_LARGE),
BINDER_TYPE_HANDLE = B_PACK_CHARS('s', 'h', '*', B_TYPE_LARGE),
BINDER_TYPE_WEAK_HANDLE = B_PACK_CHARS('w', 'h', '*', B_TYPE_LARGE),
BINDER_TYPE_FD = B_PACK_CHARS('f', 'd', '*', B_TYPE_LARGE),
};
enum {
FLAT_BINDER_FLAG_PRIORITY_MASK = 0xff,
FLAT_BINDER_FLAG_ACCEPTS_FDS = 0x100,
};
#ifdef BINDER_IPC_32BIT
typedef __u32 binder_size_t;
typedef __u32 binder_uintptr_t;
#else
typedef __u64 binder_size_t;
typedef __u64 binder_uintptr_t;
#endif
/*
* This is the flattened representation of a Binder object for transfer
* between processes. The 'offsets' supplied as part of a binder transaction
* contains offsets into the data where these structures occur. The Binder
* driver takes care of re-writing the structure type and data as it moves
* between processes.
*/
struct flat_binder_object {
/* 8 bytes for large_flat_header. */
__u32 type;
__u32 flags;
/* 8 bytes of data. */
union {
binder_uintptr_t binder; /* local object */
__u32 handle; /* remote object */
};
/* extra data associated with local object */
binder_uintptr_t cookie;
};
/*
* On 64-bit platforms where user code may run in 32-bits the driver must
* translate the buffer (and local binder) addresses appropriately.
*/
struct binder_write_read {
binder_size_t write_size; /* bytes to write */
binder_size_t write_consumed; /* bytes consumed by driver */
binder_uintptr_t write_buffer;
binder_size_t read_size; /* bytes to read */
binder_size_t read_consumed; /* bytes consumed by driver */
binder_uintptr_t read_buffer;
};
/* Use with BINDER_VERSION, driver fills in fields. */
struct binder_version {
/* driver protocol version -- increment with incompatible change */
__s32 protocol_version;
};
/* This is the current protocol version. */
#ifdef BINDER_IPC_32BIT
#define BINDER_CURRENT_PROTOCOL_VERSION 7
#else
#define BINDER_CURRENT_PROTOCOL_VERSION 8
#endif
#define BINDER_WRITE_READ _IOWR('b', 1, struct binder_write_read)
#define BINDER_SET_IDLE_TIMEOUT _IOW('b', 3, __s64)
#define BINDER_SET_MAX_THREADS _IOW('b', 5, __u32)
#define BINDER_SET_IDLE_PRIORITY _IOW('b', 6, __s32)
#define BINDER_SET_CONTEXT_MGR _IOW('b', 7, __s32)
#define BINDER_THREAD_EXIT _IOW('b', 8, __s32)
#define BINDER_VERSION _IOWR('b', 9, struct binder_version)
/*
* NOTE: Two special error codes you should check for when calling
* in to the driver are:
*
* EINTR -- The operation has been interupted. This should be
* handled by retrying the ioctl() until a different error code
* is returned.
*
* ECONNREFUSED -- The driver is no longer accepting operations
* from your process. That is, the process is being destroyed.
* You should handle this by exiting from your process. Note
* that once this error code is returned, all further calls to
* the driver from any thread will return this same code.
*/
enum transaction_flags {
TF_ONE_WAY = 0x01, /* this is a one-way call: async, no return */
TF_ROOT_OBJECT = 0x04, /* contents are the component's root object */
TF_STATUS_CODE = 0x08, /* contents are a 32-bit status code */
TF_ACCEPT_FDS = 0x10, /* allow replies with file descriptors */
};
struct binder_transaction_data {
/* The first two are only used for bcTRANSACTION and brTRANSACTION,
* identifying the target and contents of the transaction.
*/
union {
/* target descriptor of command transaction */
__u32 handle;
/* target descriptor of return transaction */
binder_uintptr_t ptr;
} target;
binder_uintptr_t cookie; /* target object cookie */
__u32 code; /* transaction command */
/* General information about the transaction. */
__u32 flags;
pid_t sender_pid;
uid_t sender_euid;
binder_size_t data_size; /* number of bytes of data */
binder_size_t offsets_size; /* number of bytes of offsets */
/* If this transaction is inline, the data immediately
* follows here; otherwise, it ends with a pointer to
* the data buffer.
*/
union {
struct {
/* transaction data */
binder_uintptr_t buffer;
/* offsets from buffer to flat_binder_object structs */
binder_uintptr_t offsets;
} ptr;
__u8 buf[8];
} data;
};
struct binder_ptr_cookie {
binder_uintptr_t ptr;
binder_uintptr_t cookie;
};
struct binder_handle_cookie {
__u32 handle;
binder_uintptr_t cookie;
} __packed;
struct binder_pri_desc {
__s32 priority;
__u32 desc;
};
struct binder_pri_ptr_cookie {
__s32 priority;
binder_uintptr_t ptr;
binder_uintptr_t cookie;
};
enum binder_driver_return_protocol {
BR_ERROR = _IOR('r', 0, __s32),
/*
* int: error code
*/
BR_OK = _IO('r', 1),
/* No parameters! */
BR_TRANSACTION = _IOR('r', 2, struct binder_transaction_data),
BR_REPLY = _IOR('r', 3, struct binder_transaction_data),
/*
* binder_transaction_data: the received command.
*/
BR_ACQUIRE_RESULT = _IOR('r', 4, __s32),
/*
* not currently supported
* int: 0 if the last bcATTEMPT_ACQUIRE was not successful.
* Else the remote object has acquired a primary reference.
*/
BR_DEAD_REPLY = _IO('r', 5),
/*
* The target of the last transaction (either a bcTRANSACTION or
* a bcATTEMPT_ACQUIRE) is no longer with us. No parameters.
*/
BR_TRANSACTION_COMPLETE = _IO('r', 6),
/*
* No parameters... always refers to the last transaction requested
* (including replies). Note that this will be sent even for
* asynchronous transactions.
*/
BR_INCREFS = _IOR('r', 7, struct binder_ptr_cookie),
BR_ACQUIRE = _IOR('r', 8, struct binder_ptr_cookie),
BR_RELEASE = _IOR('r', 9, struct binder_ptr_cookie),
BR_DECREFS = _IOR('r', 10, struct binder_ptr_cookie),
/*
* void *: ptr to binder
* void *: cookie for binder
*/
BR_ATTEMPT_ACQUIRE = _IOR('r', 11, struct binder_pri_ptr_cookie),
/*
* not currently supported
* int: priority
* void *: ptr to binder
* void *: cookie for binder
*/
BR_NOOP = _IO('r', 12),
/*
* No parameters. Do nothing and examine the next command. It exists
* primarily so that we can replace it with a BR_SPAWN_LOOPER command.
*/
BR_SPAWN_LOOPER = _IO('r', 13),
/*
* No parameters. The driver has determined that a process has no
* threads waiting to service incoming transactions. When a process
* receives this command, it must spawn a new service thread and
* register it via bcENTER_LOOPER.
*/
BR_FINISHED = _IO('r', 14),
/*
* not currently supported
* stop threadpool thread
*/
BR_DEAD_BINDER = _IOR('r', 15, binder_uintptr_t),
/*
* void *: cookie
*/
BR_CLEAR_DEATH_NOTIFICATION_DONE = _IOR('r', 16, binder_uintptr_t),
/*
* void *: cookie
*/
BR_FAILED_REPLY = _IO('r', 17),
/*
* The the last transaction (either a bcTRANSACTION or
* a bcATTEMPT_ACQUIRE) failed (e.g. out of memory). No parameters.
*/
};
enum binder_driver_command_protocol {
BC_TRANSACTION = _IOW('c', 0, struct binder_transaction_data),
BC_REPLY = _IOW('c', 1, struct binder_transaction_data),
/*
* binder_transaction_data: the sent command.
*/
BC_ACQUIRE_RESULT = _IOW('c', 2, __s32),
/*
* not currently supported
* int: 0 if the last BR_ATTEMPT_ACQUIRE was not successful.
* Else you have acquired a primary reference on the object.
*/
BC_FREE_BUFFER = _IOW('c', 3, binder_uintptr_t),
/*
* void *: ptr to transaction data received on a read
*/
BC_INCREFS = _IOW('c', 4, __u32),
BC_ACQUIRE = _IOW('c', 5, __u32),
BC_RELEASE = _IOW('c', 6, __u32),
BC_DECREFS = _IOW('c', 7, __u32),
/*
* int: descriptor
*/
BC_INCREFS_DONE = _IOW('c', 8, struct binder_ptr_cookie),
BC_ACQUIRE_DONE = _IOW('c', 9, struct binder_ptr_cookie),
/*
* void *: ptr to binder
* void *: cookie for binder
*/
BC_ATTEMPT_ACQUIRE = _IOW('c', 10, struct binder_pri_desc),
/*
* not currently supported
* int: priority
* int: descriptor
*/
BC_REGISTER_LOOPER = _IO('c', 11),
/*
* No parameters.
* Register a spawned looper thread with the device.
*/
BC_ENTER_LOOPER = _IO('c', 12),
BC_EXIT_LOOPER = _IO('c', 13),
/*
* No parameters.
* These two commands are sent as an application-level thread
* enters and exits the binder loop, respectively. They are
* used so the binder can have an accurate count of the number
* of looping threads it has available.
*/
BC_REQUEST_DEATH_NOTIFICATION = _IOW('c', 14,
struct binder_handle_cookie),
/*
* int: handle
* void *: cookie
*/
BC_CLEAR_DEATH_NOTIFICATION = _IOW('c', 15,
struct binder_handle_cookie),
/*
* int: handle
* void *: cookie
*/
BC_DEAD_BINDER_DONE = _IOW('c', 16, binder_uintptr_t),
/*
* void *: cookie
*/
};
#endif /* _UAPI_LINUX_BINDER_H */

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/*
* Copyright (C) 2012 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM binder
#if !defined(_BINDER_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _BINDER_TRACE_H
#include <linux/tracepoint.h>
struct binder_buffer;
struct binder_node;
struct binder_proc;
struct binder_ref;
struct binder_thread;
struct binder_transaction;
TRACE_EVENT(binder_ioctl,
TP_PROTO(unsigned int cmd, unsigned long arg),
TP_ARGS(cmd, arg),
TP_STRUCT__entry(
__field(unsigned int, cmd)
__field(unsigned long, arg)
),
TP_fast_assign(
__entry->cmd = cmd;
__entry->arg = arg;
),
TP_printk("cmd=0x%x arg=0x%lx", __entry->cmd, __entry->arg)
);
DECLARE_EVENT_CLASS(binder_lock_class,
TP_PROTO(const char *tag),
TP_ARGS(tag),
TP_STRUCT__entry(
__field(const char *, tag)
),
TP_fast_assign(
__entry->tag = tag;
),
TP_printk("tag=%s", __entry->tag)
);
#define DEFINE_BINDER_LOCK_EVENT(name) \
DEFINE_EVENT(binder_lock_class, name, \
TP_PROTO(const char *func), \
TP_ARGS(func))
DEFINE_BINDER_LOCK_EVENT(binder_lock);
DEFINE_BINDER_LOCK_EVENT(binder_locked);
DEFINE_BINDER_LOCK_EVENT(binder_unlock);
DECLARE_EVENT_CLASS(binder_function_return_class,
TP_PROTO(int ret),
TP_ARGS(ret),
TP_STRUCT__entry(
__field(int, ret)
),
TP_fast_assign(
__entry->ret = ret;
),
TP_printk("ret=%d", __entry->ret)
);
#define DEFINE_BINDER_FUNCTION_RETURN_EVENT(name) \
DEFINE_EVENT(binder_function_return_class, name, \
TP_PROTO(int ret), \
TP_ARGS(ret))
DEFINE_BINDER_FUNCTION_RETURN_EVENT(binder_ioctl_done);
DEFINE_BINDER_FUNCTION_RETURN_EVENT(binder_write_done);
DEFINE_BINDER_FUNCTION_RETURN_EVENT(binder_read_done);
TRACE_EVENT(binder_wait_for_work,
TP_PROTO(bool proc_work, bool transaction_stack, bool thread_todo),
TP_ARGS(proc_work, transaction_stack, thread_todo),
TP_STRUCT__entry(
__field(bool, proc_work)
__field(bool, transaction_stack)
__field(bool, thread_todo)
),
TP_fast_assign(
__entry->proc_work = proc_work;
__entry->transaction_stack = transaction_stack;
__entry->thread_todo = thread_todo;
),
TP_printk("proc_work=%d transaction_stack=%d thread_todo=%d",
__entry->proc_work, __entry->transaction_stack,
__entry->thread_todo)
);
TRACE_EVENT(binder_transaction,
TP_PROTO(bool reply, struct binder_transaction *t,
struct binder_node *target_node),
TP_ARGS(reply, t, target_node),
TP_STRUCT__entry(
__field(int, debug_id)
__field(int, target_node)
__field(int, to_proc)
__field(int, to_thread)
__field(int, reply)
__field(unsigned int, code)
__field(unsigned int, flags)
),
TP_fast_assign(
__entry->debug_id = t->debug_id;
__entry->target_node = target_node ? target_node->debug_id : 0;
__entry->to_proc = t->to_proc->pid;
__entry->to_thread = t->to_thread ? t->to_thread->pid : 0;
__entry->reply = reply;
__entry->code = t->code;
__entry->flags = t->flags;
),
TP_printk("transaction=%d dest_node=%d dest_proc=%d dest_thread=%d reply=%d flags=0x%x code=0x%x",
__entry->debug_id, __entry->target_node,
__entry->to_proc, __entry->to_thread,
__entry->reply, __entry->flags, __entry->code)
);
TRACE_EVENT(binder_transaction_received,
TP_PROTO(struct binder_transaction *t),
TP_ARGS(t),
TP_STRUCT__entry(
__field(int, debug_id)
),
TP_fast_assign(
__entry->debug_id = t->debug_id;
),
TP_printk("transaction=%d", __entry->debug_id)
);
TRACE_EVENT(binder_transaction_node_to_ref,
TP_PROTO(struct binder_transaction *t, struct binder_node *node,
struct binder_ref *ref),
TP_ARGS(t, node, ref),
TP_STRUCT__entry(
__field(int, debug_id)
__field(int, node_debug_id)
__field(binder_uintptr_t, node_ptr)
__field(int, ref_debug_id)
__field(uint32_t, ref_desc)
),
TP_fast_assign(
__entry->debug_id = t->debug_id;
__entry->node_debug_id = node->debug_id;
__entry->node_ptr = node->ptr;
__entry->ref_debug_id = ref->debug_id;
__entry->ref_desc = ref->desc;
),
TP_printk("transaction=%d node=%d src_ptr=0x%016llx ==> dest_ref=%d dest_desc=%d",
__entry->debug_id, __entry->node_debug_id,
(u64)__entry->node_ptr,
__entry->ref_debug_id, __entry->ref_desc)
);
TRACE_EVENT(binder_transaction_ref_to_node,
TP_PROTO(struct binder_transaction *t, struct binder_ref *ref),
TP_ARGS(t, ref),
TP_STRUCT__entry(
__field(int, debug_id)
__field(int, ref_debug_id)
__field(uint32_t, ref_desc)
__field(int, node_debug_id)
__field(binder_uintptr_t, node_ptr)
),
TP_fast_assign(
__entry->debug_id = t->debug_id;
__entry->ref_debug_id = ref->debug_id;
__entry->ref_desc = ref->desc;
__entry->node_debug_id = ref->node->debug_id;
__entry->node_ptr = ref->node->ptr;
),
TP_printk("transaction=%d node=%d src_ref=%d src_desc=%d ==> dest_ptr=0x%016llx",
__entry->debug_id, __entry->node_debug_id,
__entry->ref_debug_id, __entry->ref_desc,
(u64)__entry->node_ptr)
);
TRACE_EVENT(binder_transaction_ref_to_ref,
TP_PROTO(struct binder_transaction *t, struct binder_ref *src_ref,
struct binder_ref *dest_ref),
TP_ARGS(t, src_ref, dest_ref),
TP_STRUCT__entry(
__field(int, debug_id)
__field(int, node_debug_id)
__field(int, src_ref_debug_id)
__field(uint32_t, src_ref_desc)
__field(int, dest_ref_debug_id)
__field(uint32_t, dest_ref_desc)
),
TP_fast_assign(
__entry->debug_id = t->debug_id;
__entry->node_debug_id = src_ref->node->debug_id;
__entry->src_ref_debug_id = src_ref->debug_id;
__entry->src_ref_desc = src_ref->desc;
__entry->dest_ref_debug_id = dest_ref->debug_id;
__entry->dest_ref_desc = dest_ref->desc;
),
TP_printk("transaction=%d node=%d src_ref=%d src_desc=%d ==> dest_ref=%d dest_desc=%d",
__entry->debug_id, __entry->node_debug_id,
__entry->src_ref_debug_id, __entry->src_ref_desc,
__entry->dest_ref_debug_id, __entry->dest_ref_desc)
);
TRACE_EVENT(binder_transaction_fd,
TP_PROTO(struct binder_transaction *t, int src_fd, int dest_fd),
TP_ARGS(t, src_fd, dest_fd),
TP_STRUCT__entry(
__field(int, debug_id)
__field(int, src_fd)
__field(int, dest_fd)
),
TP_fast_assign(
__entry->debug_id = t->debug_id;
__entry->src_fd = src_fd;
__entry->dest_fd = dest_fd;
),
TP_printk("transaction=%d src_fd=%d ==> dest_fd=%d",
__entry->debug_id, __entry->src_fd, __entry->dest_fd)
);
DECLARE_EVENT_CLASS(binder_buffer_class,
TP_PROTO(struct binder_buffer *buf),
TP_ARGS(buf),
TP_STRUCT__entry(
__field(int, debug_id)
__field(size_t, data_size)
__field(size_t, offsets_size)
),
TP_fast_assign(
__entry->debug_id = buf->debug_id;
__entry->data_size = buf->data_size;
__entry->offsets_size = buf->offsets_size;
),
TP_printk("transaction=%d data_size=%zd offsets_size=%zd",
__entry->debug_id, __entry->data_size, __entry->offsets_size)
);
DEFINE_EVENT(binder_buffer_class, binder_transaction_alloc_buf,
TP_PROTO(struct binder_buffer *buffer),
TP_ARGS(buffer));
DEFINE_EVENT(binder_buffer_class, binder_transaction_buffer_release,
TP_PROTO(struct binder_buffer *buffer),
TP_ARGS(buffer));
DEFINE_EVENT(binder_buffer_class, binder_transaction_failed_buffer_release,
TP_PROTO(struct binder_buffer *buffer),
TP_ARGS(buffer));
TRACE_EVENT(binder_update_page_range,
TP_PROTO(struct binder_proc *proc, bool allocate,
void *start, void *end),
TP_ARGS(proc, allocate, start, end),
TP_STRUCT__entry(
__field(int, proc)
__field(bool, allocate)
__field(size_t, offset)
__field(size_t, size)
),
TP_fast_assign(
__entry->proc = proc->pid;
__entry->allocate = allocate;
__entry->offset = start - proc->buffer;
__entry->size = end - start;
),
TP_printk("proc=%d allocate=%d offset=%zu size=%zu",
__entry->proc, __entry->allocate,
__entry->offset, __entry->size)
);
TRACE_EVENT(binder_command,
TP_PROTO(uint32_t cmd),
TP_ARGS(cmd),
TP_STRUCT__entry(
__field(uint32_t, cmd)
),
TP_fast_assign(
__entry->cmd = cmd;
),
TP_printk("cmd=0x%x %s",
__entry->cmd,
_IOC_NR(__entry->cmd) < ARRAY_SIZE(binder_command_strings) ?
binder_command_strings[_IOC_NR(__entry->cmd)] :
"unknown")
);
TRACE_EVENT(binder_return,
TP_PROTO(uint32_t cmd),
TP_ARGS(cmd),
TP_STRUCT__entry(
__field(uint32_t, cmd)
),
TP_fast_assign(
__entry->cmd = cmd;
),
TP_printk("cmd=0x%x %s",
__entry->cmd,
_IOC_NR(__entry->cmd) < ARRAY_SIZE(binder_return_strings) ?
binder_return_strings[_IOC_NR(__entry->cmd)] :
"unknown")
);
#endif /* _BINDER_TRACE_H */
#undef TRACE_INCLUDE_PATH
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE binder_trace
#include <trace/define_trace.h>

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#include <linux/sched.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/atomic.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include "deps.h"
static struct vm_struct *(*get_vm_area_ptr)(unsigned long, unsigned long) = GET_VM_AREA;
static void (*zap_page_range_ptr)(struct vm_area_struct *, unsigned long, unsigned long, struct zap_details *) = ZAP_PAGE_RANGE;
static int (*map_kernel_range_noflush_ptr)(unsigned long start, unsigned long size, pgprot_t prot, struct page **pages) = MAP_KERNEL_RANGE_NOFLUSH;
static void (*unmap_kernel_range_ptr)(unsigned long, unsigned long) = UNMAP_KERNEL_RANGE;
static struct files_struct *(*get_files_struct_ptr)(struct task_struct *) = GET_FILES_STRUCT;
static void (*put_files_struct_ptr)(struct files_struct *) = PUT_FILES_STRUCT;
static struct sighand_struct *(*__lock_task_sighand_ptr)(struct task_struct *, unsigned long *) = __LOCK_TASK_SIGHAND;
static int (*__alloc_fd_ptr)(struct files_struct *files, unsigned start, unsigned end, unsigned flags) = __ALLOC_FD;
static void (*__fd_install_ptr)(struct files_struct *files, unsigned int fd, struct file *file) = __FD_INSTALL;
static int (*__close_fd_ptr)(struct files_struct *files, unsigned int fd) = __CLOSE_FD;
static int (*can_nice_ptr)(const struct task_struct *, const int) = CAN_NICE;
static int (*security_binder_set_context_mgr_ptr)(struct task_struct *mgr) = SECURITY_BINDER_SET_CONTEXT_MGR;
static int (*security_binder_transaction_ptr)(struct task_struct *from, struct task_struct *to) = SECURITY_BINDER_TRANSACTION;
static int (*security_binder_transfer_binder_ptr)(struct task_struct *from, struct task_struct *to) = SECURITY_BINDER_TRANSFER_BINDER;
static int (*security_binder_transfer_file_ptr)(struct task_struct *from, struct task_struct *to, struct file *file) = SECURITY_BINDER_TRANSFER_FILE;
struct vm_struct *get_vm_area(unsigned long size, unsigned long flags)
{
return get_vm_area_ptr(size, flags);
}
void zap_page_range(struct vm_area_struct *vma, unsigned long address, unsigned long size, struct zap_details *details)
{
zap_page_range_ptr(vma, address, size, details);
}
int map_kernel_range_noflush(unsigned long start, unsigned long size, pgprot_t prot, struct page **pages)
{
return map_kernel_range_noflush_ptr(start, size, prot, pages);
}
void unmap_kernel_range(unsigned long addr, unsigned long size)
{
unmap_kernel_range_ptr(addr, size);
}
struct files_struct *get_files_struct(struct task_struct *task)
{
return get_files_struct_ptr(task);
}
void put_files_struct(struct files_struct *files)
{
put_files_struct_ptr(files);
}
struct sighand_struct *__lock_task_sighand(struct task_struct *tsk, unsigned long *flags)
{
return __lock_task_sighand_ptr(tsk, flags);
}
int __alloc_fd(struct files_struct *files, unsigned start, unsigned end, unsigned flags)
{
return __alloc_fd_ptr(files, start, end, flags);
}
void __fd_install(struct files_struct *files, unsigned int fd, struct file *file)
{
__fd_install_ptr(files, fd, file);
}
int __close_fd(struct files_struct *files, unsigned int fd)
{
return __close_fd_ptr(files, fd);
}
int can_nice(const struct task_struct *p, const int nice)
{
return can_nice_ptr(p, nice);
}
int security_binder_set_context_mgr(struct task_struct *mgr)
{
return security_binder_set_context_mgr_ptr(mgr);
}
int security_binder_transaction(struct task_struct *from, struct task_struct *to)
{
return security_binder_transaction_ptr(from, to);
}
int security_binder_transfer_binder(struct task_struct *from, struct task_struct *to)
{
return security_binder_transfer_binder_ptr(from, to);
}
int security_binder_transfer_file(struct task_struct *from, struct task_struct *to, struct file *file)
{
return security_binder_transfer_file_ptr(from, to, file);
}

18
kernel/binder/gen_deps.sh Executable file
View file

@ -0,0 +1,18 @@
#!/bin/sh
SYMS="get_vm_area zap_page_range map_kernel_range_noflush unmap_kernel_range "\
"get_files_struct put_files_struct __lock_task_sighand "\
"__alloc_fd __fd_install __close_fd can_nice "\
"security_binder_set_context_mgr security_binder_transaction "\
"security_binder_transfer_binder security_binder_transfer_file"
for sym in $SYMS; do
addr=`cat /proc/kallsyms | grep -Ee '^[0-9a-f]+ T '$sym'$' | sed -e 's/\s.*$//g'`
if [ a$addr = 'a' ]; then
echo "Error: can't find symbol $sym"
exit 1
fi
name=`echo $sym | tr '[:lower:]' '[:upper:]'`
echo "#define $name\t(void *)0x$addr"
done