You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
2.1 KiB
59 lines
2.1 KiB
# perfprofd - perf profile collection daemon |
|
type perfprofd, domain; |
|
type perfprofd_exec, exec_type, file_type; |
|
|
|
userdebug_or_eng(` |
|
|
|
typeattribute perfprofd coredomain; |
|
typeattribute perfprofd mlstrustedsubject; |
|
|
|
# perfprofd needs to control CPU hot-plug in order to avoid kernel |
|
# perfevents problems in cases where CPU goes on/off during measurement; |
|
# this means read access to /sys/devices/system/cpu/possible |
|
# and read/write access to /sys/devices/system/cpu/cpu*/online |
|
allow perfprofd sysfs_devices_system_cpu:file rw_file_perms; |
|
|
|
# perfprofd checks for the existence of and then invokes simpleperf; |
|
# simpleperf retains perfprofd domain after exec |
|
allow perfprofd system_file:file rx_file_perms; |
|
|
|
# perfprofd reads a config file from /data/data/com.google.android.gms/files |
|
allow perfprofd app_data_file:file r_file_perms; |
|
allow perfprofd app_data_file:dir search; |
|
allow perfprofd self:capability { dac_override }; |
|
|
|
# perfprofd opens a file for writing in /data/misc/perfprofd |
|
allow perfprofd perfprofd_data_file:file create_file_perms; |
|
allow perfprofd perfprofd_data_file:dir rw_dir_perms; |
|
|
|
# perfprofd uses the system log |
|
read_logd(perfprofd); |
|
write_logd(perfprofd); |
|
|
|
# perfprofd inspects /sys/power/wake_unlock |
|
wakelock_use(perfprofd); |
|
|
|
# simpleperf uses ioctl() to turn on kernel perf events measurements |
|
allow perfprofd self:capability sys_admin; |
|
|
|
# simpleperf needs to examine /proc to collect task/thread info |
|
r_dir_file(perfprofd, domain) |
|
|
|
# simpleperf needs to access /proc/<pid>/exec |
|
allow perfprofd self:capability { sys_resource sys_ptrace }; |
|
neverallow perfprofd domain:process ptrace; |
|
|
|
# simpleperf needs open/read any file that turns up in a profile |
|
# to see whether it has a build ID |
|
allow perfprofd exec_type:file r_file_perms; |
|
|
|
# simpleperf examines debugfs on startup to collect tracepoint event types |
|
allow perfprofd debugfs_tracing:file r_file_perms; |
|
|
|
# simpleperf is going to execute "sleep" |
|
allow perfprofd toolbox_exec:file rx_file_perms; |
|
|
|
# needed for simpleperf on some kernels |
|
allow perfprofd self:capability ipc_lock; |
|
|
|
')
|
|
|