diff options
| author | Hridya Valsaraju <hridya@google.com> | 2019-09-03 09:16:54 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-04 13:31:22 +0200 |
| commit | 03e2e07e38147917482d595ad3cf193212ded8ac (patch) | |
| tree | 8b63ad2be74bdf9c9935ee130570bbc0e339af8b /drivers/android/binder_internal.h | |
| parent | 0e13e452dafc009049a9a5a4153e2f9e51b23915 (diff) | |
| download | linux-03e2e07e38147917482d595ad3cf193212ded8ac.tar.bz2 | |
binder: Make transaction_log available in binderfs
Currently, the binder transaction log files 'transaction_log'
and 'failed_transaction_log' live in debugfs at the following locations:
/sys/kernel/debug/binder/failed_transaction_log
/sys/kernel/debug/binder/transaction_log
This patch makes these files also available in a binderfs instance
mounted with the mount option "stats=global".
It does not affect the presence of these files in debugfs.
If a binderfs instance is mounted at path /dev/binderfs, the location of
these files will be as follows:
/dev/binderfs/binder_logs/failed_transaction_log
/dev/binderfs/binder_logs/transaction_log
This change provides an alternate option to access these files when
debugfs is not mounted.
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Hridya Valsaraju <hridya@google.com>
Link: https://lore.kernel.org/r/20190903161655.107408-4-hridya@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/android/binder_internal.h')
| -rw-r--r-- | drivers/android/binder_internal.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/android/binder_internal.h b/drivers/android/binder_internal.h index 12ef96f256c6..b9be42d9464c 100644 --- a/drivers/android/binder_internal.h +++ b/drivers/android/binder_internal.h @@ -65,4 +65,34 @@ DEFINE_SHOW_ATTRIBUTE(binder_state); int binder_transactions_show(struct seq_file *m, void *unused); DEFINE_SHOW_ATTRIBUTE(binder_transactions); + +int binder_transaction_log_show(struct seq_file *m, void *unused); +DEFINE_SHOW_ATTRIBUTE(binder_transaction_log); + +struct binder_transaction_log_entry { + int debug_id; + int debug_id_done; + int call_type; + int from_proc; + int from_thread; + int target_handle; + int to_proc; + int to_thread; + int to_node; + int data_size; + int offsets_size; + int return_error_line; + uint32_t return_error; + uint32_t return_error_param; + const char *context_name; +}; + +struct binder_transaction_log { + atomic_t cur; + bool full; + struct binder_transaction_log_entry entry[32]; +}; + +extern struct binder_transaction_log binder_transaction_log; +extern struct binder_transaction_log binder_transaction_log_failed; #endif /* _LINUX_BINDER_INTERNAL_H */ |