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Anbox Addition

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This commit is contained in:
ameyagokhale
2020-09-29 06:03:25 +00:00
parent e9b6a47470
commit 7367984272
11 changed files with 8896 additions and 0 deletions
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38
arch/arm/configs/flo_defconfig
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@@ -538,3 +538,41 @@ CONFIG_PPP_ASYNC=y
CONFIG_PPP_SYNC_TTY=y
CONFIG_CFG80211_INTERNAL_REGDB=y
CONFIG_SWAP=n
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_NET_CLS_CGROUP=y
CONFIG_VETH=y
CONFIG_RAW_DRIVER=y
CONFIG_XOR_BLOCKS=y
CONFIG_RAID6_PQ=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_XZ_DEC=y
# CONFIG_XZ_DEC_X86 is not set
# CONFIG_XZ_DEC_POWERPC is not set
# CONFIG_XZ_DEC_IA64 is not set
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
# CONFIG_XZ_DEC_SPARC is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_SQUASHFS=y
CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_ZLIB=y
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
CONFIG_MISC_FILESYSTEMS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_ANBOX=y
CONFIG_ANBOX_BINDER_IPC=y
CONFIG_ANBOX_BINDER_IPC_32BIT=n

3473
arch/arm/configs/ubuntu_flo_defconfig Normal file
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File diff suppressed because it is too large Load Diff

2
backports/Kconfig
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@@ -77,4 +77,6 @@ source "$BACKPORT_DIR/net/6lowpan/Kconfig"
source "$BACKPORT_DIR/net/ieee802154/Kconfig"
source "$BACKPORT_DIR/net/mac802154/Kconfig"
source "$BACKPORT_DIR/drivers/anbox/Kconfig"
endif # BACKPORT_LINUX

1
backports/Makefile
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@@ -54,3 +54,4 @@ obj-$(CONFIG_BACKPORT_MAC802154) += net/mac802154/
# obj-$(CONFIG_BACKPORT_USB_WDM) += drivers/usb/class/
# obj-$(CONFIG_BACKPORT_USB_USBNET) += drivers/net/usb/
obj-$(CONFIG_ANBOX) += drivers/anbox/

21
backports/drivers/anbox/Kconfig Normal file
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@@ -0,0 +1,21 @@
menu "Anbox"
config ANBOX
bool "Anbox Drivers"
default N
---help---
Enable support for various drivers needed for Anbox
if ANBOX
config ANBOX_BINDER_IPC
bool "Anbox Binder IPC Driver"
default n
config ANBOX_BINDER_IPC_32BIT
bool "32bit Anbox binder"
default n
endif # if ANBOX
endmenu

4
backports/drivers/anbox/Makefile Normal file
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@@ -0,0 +1,4 @@
ccflags-y += -Wno-int-conversion -Wno-int-to-pointer-cast
obj-$(CONFIG_ANBOX_BINDER_IPC) += backports.o anbox-binder.o
CFLAGS_REMOVE_trace_persistent.o = -pg

4420
backports/drivers/anbox/anbox-binder.c Normal file
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File diff suppressed because it is too large Load Diff

452
backports/drivers/anbox/anbox-binder.h Normal file
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@@ -0,0 +1,452 @@
/* anbox-binder.h
*
* Anbox IPC Subsystem
*
* Copyright (C) 2018 The UBports project
* Written by: Marius Gripsgard <marius@ubports.com>
*
* Based on: Android IPC Subsystem
* Copyright (C) 2007-2008 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.
*
*/
#ifndef _UAPI_LINUX_ANBOX_BINDER_H
#define _UAPI_LINUX_ANBOX_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),
BINDER_TYPE_FDA = B_PACK_CHARS('f', 'd', 'a', B_TYPE_LARGE),
BINDER_TYPE_PTR = B_PACK_CHARS('p', 't', '*', 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
/**
* struct binder_object_header - header shared by all binder metadata objects.
* @type: type of the object
*/
struct binder_object_header {
__u32 type;
};
/*
* 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 {
struct binder_object_header hdr;
__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;
};
/**
* struct binder_fd_object - describes a filedescriptor to be fixed up.
* @hdr: common header structure
* @pad_flags: padding to remain compatible with old userspace code
* @pad_binder: padding to remain compatible with old userspace code
* @fd: file descriptor
* @cookie: opaque data, used by user-space
*/
struct binder_fd_object {
struct binder_object_header hdr;
__u32 pad_flags;
union {
binder_uintptr_t pad_binder;
__u32 fd;
};
binder_uintptr_t cookie;
};
/* struct binder_buffer_object - object describing a userspace buffer
* @hdr: common header structure
* @flags: one or more BINDER_BUFFER_* flags
* @buffer: address of the buffer
* @length: length of the buffer
* @parent: index in offset array pointing to parent buffer
* @parent_offset: offset in @parent pointing to this buffer
*
* A binder_buffer object represents an object that the
* binder kernel driver can copy verbatim to the target
* address space. A buffer itself may be pointed to from
* within another buffer, meaning that the pointer inside
* that other buffer needs to be fixed up as well. This
* can be done by setting the BINDER_BUFFER_FLAG_HAS_PARENT
* flag in @flags, by setting @parent buffer to the index
* in the offset array pointing to the parent binder_buffer_object,
* and by setting @parent_offset to the offset in the parent buffer
* at which the pointer to this buffer is located.
*/
struct binder_buffer_object {
struct binder_object_header hdr;
__u32 flags;
binder_uintptr_t buffer;
binder_size_t length;
binder_size_t parent;
binder_size_t parent_offset;
};
enum {
BINDER_BUFFER_FLAG_HAS_PARENT = 0x01,
};
/* struct binder_fd_array_object - object describing an array of fds in a buffer
* @hdr: common header structure
* @num_fds: number of file descriptors in the buffer
* @parent: index in offset array to buffer holding the fd array
* @parent_offset: start offset of fd array in the buffer
*
* A binder_fd_array object represents an array of file
* descriptors embedded in a binder_buffer_object. It is
* different from a regular binder_buffer_object because it
* describes a list of file descriptors to fix up, not an opaque
* blob of memory, and hence the kernel needs to treat it differently.
*
* An example of how this would be used is with Android's
* native_handle_t object, which is a struct with a list of integers
* and a list of file descriptors. The native_handle_t struct itself
* will be represented by a struct binder_buffer_objct, whereas the
* embedded list of file descriptors is represented by a
* struct binder_fd_array_object with that binder_buffer_object as
* a parent.
*/
struct binder_fd_array_object {
struct binder_object_header hdr;
binder_size_t num_fds;
binder_size_t parent;
binder_size_t parent_offset;
};
/*
* 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_transaction_data_sg {
struct binder_transaction_data transaction_data;
binder_size_t buffers_size;
};
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
*/
BC_TRANSACTION_SG = _IOW('c', 17, struct binder_transaction_data_sg),
BC_REPLY_SG = _IOW('c', 18, struct binder_transaction_data_sg),
/*
* binder_transaction_data_sg: the sent command.
*/
};
#endif /* _UAPI_LINUX_ANBOX_BINDER_H */

329
backports/drivers/anbox/anbox-binder_trace.h Normal file
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@@ -0,0 +1,329 @@
/*
* 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 anbox-binder
#if !defined(_ANBOX_BINDER_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _ANBOX_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 /* _ANBOX_BINDER_TRACE_H */
#undef TRACE_INCLUDE_PATH
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE anbox-binder_trace
#include <trace/define_trace.h>

132
backports/drivers/anbox/backports.c Normal file
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@@ -0,0 +1,132 @@
/* backports.c
*
* Anbox IPC Subsystem
*
* Copyright (C) 2018 The UBports project
* Written by: Marius Gripsgard <marius@ubports.com>
*
* 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.
*
*/
#include <linux/fdtable.h>
/*
* copied from __alloc_fd in file.c
*/
int __alloc_fd(struct files_struct *files,
unsigned start, unsigned end, unsigned flags)
{
unsigned int fd;
int error;
struct fdtable *fdt;
spin_lock(&files->file_lock);
repeat:
fdt = files_fdtable(files);
fd = start;
if (fd < files->next_fd)
fd = files->next_fd;
if (fd < fdt->max_fds)
fd = find_next_zero_bit(fdt->open_fds, fdt->max_fds, fd);
/*
* N.B. For clone tasks sharing a files structure, this test
* will limit the total number of files that can be opened.
*/
error = -EMFILE;
if (fd >= end)
goto out;
error = expand_files(files, fd);
if (error < 0)
goto out;
/*
* If we needed to expand the fs array we
* might have blocked - try again.
*/
if (error)
goto repeat;
if (start <= files->next_fd)
files->next_fd = fd + 1;
__set_open_fd(fd, fdt);
if (flags & O_CLOEXEC)
__set_close_on_exec(fd, fdt);
else
__clear_close_on_exec(fd, fdt);
error = fd;
#if 1
/* Sanity check */
if (rcu_dereference_raw(fdt->fd[fd]) != NULL) {
printk(KERN_WARNING "alloc_fd: slot %d not NULL!\n", fd);
rcu_assign_pointer(fdt->fd[fd], NULL);
}
#endif
out:
spin_unlock(&files->file_lock);
return error;
}
/*
* copied from __fd_install in file.c
*/
void __fd_install(struct files_struct *files, unsigned int fd,
struct file *file)
{
struct fdtable *fdt;
spin_lock(&files->file_lock);
fdt = files_fdtable(files);
BUG_ON(fdt->fd[fd] != NULL);
rcu_assign_pointer(fdt->fd[fd], file);
spin_unlock(&files->file_lock);
}
/*
* copied from __put_unused_fd in open.c
*/
static void __put_unused_fd(struct files_struct *files, unsigned int fd)
{
struct fdtable *fdt = files_fdtable(files);
__clear_open_fd(fd, fdt);
if (fd < files->next_fd)
files->next_fd = fd;
}
/*
* copied from __close_fd in file.c
*/
int __close_fd(struct files_struct *files, unsigned fd)
{
struct file *file;
struct fdtable *fdt;
spin_lock(&files->file_lock);
fdt = files_fdtable(files);
if (fd >= fdt->max_fds)
goto out_unlock;
file = fdt->fd[fd];
if (!file)
goto out_unlock;
rcu_assign_pointer(fdt->fd[fd], NULL);
__clear_close_on_exec(fd, fdt);
__put_unused_fd(files, fd);
spin_unlock(&files->file_lock);
return filp_close(file, files);
out_unlock:
spin_unlock(&files->file_lock);
return -EBADF;
}

24
backports/drivers/anbox/backports.h Normal file
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@@ -0,0 +1,24 @@
/* backports.h
*
* Anbox IPC Subsystem
*
* Copyright (C) 2018 The UBports project
* Written by: Marius Gripsgard <marius@ubports.com>
*
* 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.
*
*/
extern int __alloc_fd(struct files_struct *files,
unsigned start, unsigned end, unsigned flags);
extern void __fd_install(struct files_struct *files,
unsigned int fd, struct file *file);
extern int __close_fd(struct files_struct *files,
unsigned int fd);