#include <linux/slab.h>
#include "binder.h"
+#include "binder_trace.h"
-static DEFINE_MUTEX(binder_lock);
+static DEFINE_MUTEX(binder_main_lock);
static DEFINE_MUTEX(binder_deferred_lock);
static DEFINE_MUTEX(binder_mmap_lock);
return retval;
}
+static inline void binder_lock(const char *tag)
+{
+ trace_binder_lock(tag);
+ mutex_lock(&binder_main_lock);
+ trace_binder_locked(tag);
+}
+
+static inline void binder_unlock(const char *tag)
+{
+ trace_binder_unlock(tag);
+ mutex_unlock(&binder_main_lock);
+}
+
static void binder_set_nice(long nice)
{
long min_nice;
if (end <= start)
return 0;
+ trace_binder_update_page_range(proc, allocate, start, end);
+
if (vma)
mm = NULL;
else
t->code = tr->code;
t->flags = tr->flags;
t->priority = task_nice(current);
+
+ trace_binder_transaction(reply, t, target_node);
+
t->buffer = binder_alloc_buf(target_proc, tr->data_size,
tr->offsets_size, !reply && (t->flags & TF_ONE_WAY));
if (t->buffer == NULL) {
t->buffer->debug_id = t->debug_id;
t->buffer->transaction = t;
t->buffer->target_node = target_node;
+ trace_binder_transaction_alloc_buf(t->buffer);
if (target_node)
binder_inc_node(target_node, 1, 0, NULL);
binder_inc_ref(ref, fp->type == BINDER_TYPE_HANDLE,
&thread->todo);
+ trace_binder_transaction_node_to_ref(t, node, ref);
binder_debug(BINDER_DEBUG_TRANSACTION,
" node %d u%p -> ref %d desc %d\n",
node->debug_id, node->ptr, ref->debug_id,
fp->binder = ref->node->ptr;
fp->cookie = ref->node->cookie;
binder_inc_node(ref->node, fp->type == BINDER_TYPE_BINDER, 0, NULL);
+ trace_binder_transaction_ref_to_node(t, ref);
binder_debug(BINDER_DEBUG_TRANSACTION,
" ref %d desc %d -> node %d u%p\n",
ref->debug_id, ref->desc, ref->node->debug_id,
}
fp->handle = new_ref->desc;
binder_inc_ref(new_ref, fp->type == BINDER_TYPE_HANDLE, NULL);
+ trace_binder_transaction_ref_to_ref(t, ref,
+ new_ref);
binder_debug(BINDER_DEBUG_TRANSACTION,
" ref %d desc %d -> ref %d desc %d (node %d)\n",
ref->debug_id, ref->desc, new_ref->debug_id,
goto err_get_unused_fd_failed;
}
task_fd_install(target_proc, target_fd, file);
+ trace_binder_transaction_fd(t, fp->handle, target_fd);
binder_debug(BINDER_DEBUG_TRANSACTION,
" fd %ld -> %d\n", fp->handle, target_fd);
/* TODO: fput? */
err_bad_object_type:
err_bad_offset:
err_copy_data_failed:
+ trace_binder_transaction_failed_buffer_release(t->buffer);
binder_transaction_buffer_release(target_proc, t->buffer, offp);
t->buffer->transaction = NULL;
binder_free_buf(target_proc, t->buffer);
if (get_user(cmd, (uint32_t __user *)ptr))
return -EFAULT;
ptr += sizeof(uint32_t);
+ trace_binder_command(cmd);
if (_IOC_NR(cmd) < ARRAY_SIZE(binder_stats.bc)) {
binder_stats.bc[_IOC_NR(cmd)]++;
proc->stats.bc[_IOC_NR(cmd)]++;
else
list_move_tail(buffer->target_node->async_todo.next, &thread->todo);
}
+ trace_binder_transaction_buffer_release(buffer);
binder_transaction_buffer_release(proc, buffer, NULL);
binder_free_buf(proc, buffer);
break;
void binder_stat_br(struct binder_proc *proc, struct binder_thread *thread,
uint32_t cmd)
{
+ trace_binder_return(cmd);
if (_IOC_NR(cmd) < ARRAY_SIZE(binder_stats.br)) {
binder_stats.br[_IOC_NR(cmd)]++;
proc->stats.br[_IOC_NR(cmd)]++;
thread->looper |= BINDER_LOOPER_STATE_WAITING;
if (wait_for_proc_work)
proc->ready_threads++;
- mutex_unlock(&binder_lock);
+
+ binder_unlock(__func__);
+
+ trace_binder_wait_for_work(wait_for_proc_work,
+ !!thread->transaction_stack,
+ !list_empty(&thread->todo));
if (wait_for_proc_work) {
if (!(thread->looper & (BINDER_LOOPER_STATE_REGISTERED |
BINDER_LOOPER_STATE_ENTERED))) {
} else
ret = wait_event_interruptible(thread->wait, binder_has_thread_work(thread));
}
- mutex_lock(&binder_lock);
+
+ binder_lock(__func__);
+
if (wait_for_proc_work)
proc->ready_threads--;
thread->looper &= ~BINDER_LOOPER_STATE_WAITING;
return -EFAULT;
ptr += sizeof(tr);
+ trace_binder_transaction_received(t);
binder_stat_br(proc, thread, cmd);
binder_debug(BINDER_DEBUG_TRANSACTION,
"binder: %d:%d %s %d %d:%d, cmd %d"
struct binder_thread *thread = NULL;
int wait_for_proc_work;
- mutex_lock(&binder_lock);
+ binder_lock(__func__);
+
thread = binder_get_thread(proc);
wait_for_proc_work = thread->transaction_stack == NULL &&
list_empty(&thread->todo) && thread->return_error == BR_OK;
- mutex_unlock(&binder_lock);
+
+ binder_unlock(__func__);
if (wait_for_proc_work) {
if (binder_has_proc_work(proc, thread))
/*pr_info("binder_ioctl: %d:%d %x %lx\n", proc->pid, current->pid, cmd, arg);*/
+ trace_binder_ioctl(cmd, arg);
+
ret = wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2);
if (ret)
- return ret;
+ goto err_unlocked;
- mutex_lock(&binder_lock);
+ binder_lock(__func__);
thread = binder_get_thread(proc);
if (thread == NULL) {
ret = -ENOMEM;
if (bwr.write_size > 0) {
ret = binder_thread_write(proc, thread, (void __user *)bwr.write_buffer, bwr.write_size, &bwr.write_consumed);
+ trace_binder_write_done(ret);
if (ret < 0) {
bwr.read_consumed = 0;
if (copy_to_user(ubuf, &bwr, sizeof(bwr)))
}
if (bwr.read_size > 0) {
ret = binder_thread_read(proc, thread, (void __user *)bwr.read_buffer, bwr.read_size, &bwr.read_consumed, filp->f_flags & O_NONBLOCK);
+ trace_binder_read_done(ret);
if (!list_empty(&proc->todo))
wake_up_interruptible(&proc->wait);
if (ret < 0) {
err:
if (thread)
thread->looper &= ~BINDER_LOOPER_STATE_NEED_RETURN;
- mutex_unlock(&binder_lock);
+ binder_unlock(__func__);
wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2);
if (ret && ret != -ERESTARTSYS)
pr_info("binder: %d:%d ioctl %x %lx returned %d\n", proc->pid, current->pid, cmd, arg, ret);
+err_unlocked:
+ trace_binder_ioctl_done(ret);
return ret;
}
INIT_LIST_HEAD(&proc->todo);
init_waitqueue_head(&proc->wait);
proc->default_priority = task_nice(current);
- mutex_lock(&binder_lock);
+
+ binder_lock(__func__);
+
binder_stats_created(BINDER_STAT_PROC);
hlist_add_head(&proc->proc_node, &binder_procs);
proc->pid = current->group_leader->pid;
INIT_LIST_HEAD(&proc->delivered_death);
filp->private_data = proc;
- mutex_unlock(&binder_lock);
+
+ binder_unlock(__func__);
if (binder_debugfs_dir_entry_proc) {
char strbuf[11];
int defer;
do {
- mutex_lock(&binder_lock);
+ binder_lock(__func__);
mutex_lock(&binder_deferred_lock);
if (!hlist_empty(&binder_deferred_list)) {
proc = hlist_entry(binder_deferred_list.first,
if (defer & BINDER_DEFERRED_RELEASE)
binder_deferred_release(proc); /* frees proc */
- mutex_unlock(&binder_lock);
+ binder_unlock(__func__);
if (files)
put_files_struct(files);
} while (proc);
int do_lock = !binder_debug_no_lock;
if (do_lock)
- mutex_lock(&binder_lock);
+ binder_lock(__func__);
seq_puts(m, "binder state:\n");
hlist_for_each_entry(proc, pos, &binder_procs, proc_node)
print_binder_proc(m, proc, 1);
if (do_lock)
- mutex_unlock(&binder_lock);
+ binder_unlock(__func__);
return 0;
}
int do_lock = !binder_debug_no_lock;
if (do_lock)
- mutex_lock(&binder_lock);
+ binder_lock(__func__);
seq_puts(m, "binder stats:\n");
hlist_for_each_entry(proc, pos, &binder_procs, proc_node)
print_binder_proc_stats(m, proc);
if (do_lock)
- mutex_unlock(&binder_lock);
+ binder_unlock(__func__);
return 0;
}
int do_lock = !binder_debug_no_lock;
if (do_lock)
- mutex_lock(&binder_lock);
+ binder_lock(__func__);
seq_puts(m, "binder transactions:\n");
hlist_for_each_entry(proc, pos, &binder_procs, proc_node)
print_binder_proc(m, proc, 0);
if (do_lock)
- mutex_unlock(&binder_lock);
+ binder_unlock(__func__);
return 0;
}
int do_lock = !binder_debug_no_lock;
if (do_lock)
- mutex_lock(&binder_lock);
+ binder_lock(__func__);
seq_puts(m, "binder proc state:\n");
print_binder_proc(m, proc, 1);
if (do_lock)
- mutex_unlock(&binder_lock);
+ binder_unlock(__func__);
return 0;
}
device_initcall(binder_init);
+#define CREATE_TRACE_POINTS
+#include "binder_trace.h"
+
MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+ * 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(void __user *, 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%p ==> dest_ref=%d dest_desc=%d",
+ __entry->debug_id, __entry->node_debug_id, __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(void __user *, 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%p",
+ __entry->debug_id, __entry->node_debug_id,
+ __entry->ref_debug_id, __entry->ref_desc, __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>
projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commitdiff