From 15538c9845b1bc7b629693b55195f579025cdd82 Mon Sep 17 00:00:00 2001
From: Midas Chien <midaschieh@google.com>
Date: Mon, 6 May 2024 13:00:53 +0000
Subject: [PATCH] Dump bts information

Get BTS information when capturing bugreport.

Bug: 335422086
Test: capture bugreport
Change-Id: I5ae9be35a3fc3c975ccc843e9daee6d4e0ac130a
---
 performance/Android.bp              | 2 +-
 performance/dump_perf.cpp           | 3 +++
 performance/sepolicy/dump_perf.te   | 4 ++++
 performance/sepolicy/file.te        | 1 +
 performance/sepolicy/genfs_contexts | 1 +
 5 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/performance/Android.bp b/performance/Android.bp
index 6eee7c4..e8c06dc 100644
--- a/performance/Android.bp
+++ b/performance/Android.bp
@@ -11,7 +11,7 @@ cc_binary {
         "-Werror",
     ],
     shared_libs: [
-	"libdump",
+        "libdump",
     ],
     vendor: true,
     relative_install_path: "dump",
diff --git a/performance/dump_perf.cpp b/performance/dump_perf.cpp
index aa742f1..d2989ad 100644
--- a/performance/dump_perf.cpp
+++ b/performance/dump_perf.cpp
@@ -18,5 +18,8 @@
 
 int main() {
     dumpFileContent("VENDOR PROC DUMP", "/proc/vendor_sched/dump_task");
+    dumpFileContent("BTS scenario", "/sys/kernel/debug/bts/scenario");
+    dumpFileContent("BTS vc", "/sys/kernel/debug/bts/vc");
+    dumpFileContent("BTS status", "/sys/kernel/debug/bts/status");
     return 0;
 }
diff --git a/performance/sepolicy/dump_perf.te b/performance/sepolicy/dump_perf.te
index 15c4f6e..befe9ba 100644
--- a/performance/sepolicy/dump_perf.te
+++ b/performance/sepolicy/dump_perf.te
@@ -1,3 +1,7 @@
 pixel_bugreport(dump_perf)
 
 allow dump_perf proc_vendor_sched:file r_file_perms;
+userdebug_or_eng(`
+  allow dump_perf vendor_bts_debugfs:dir r_dir_perms;
+  allow dump_perf vendor_bts_debugfs:file r_file_perms;
+')
diff --git a/performance/sepolicy/file.te b/performance/sepolicy/file.te
index 0357d51..8e16bbf 100644
--- a/performance/sepolicy/file.te
+++ b/performance/sepolicy/file.te
@@ -1 +1,2 @@
 type sysfs_pakills, fs_type, sysfs_type;
+type vendor_bts_debugfs, fs_type, debugfs_type;
diff --git a/performance/sepolicy/genfs_contexts b/performance/sepolicy/genfs_contexts
index 07bcff9..041021c 100644
--- a/performance/sepolicy/genfs_contexts
+++ b/performance/sepolicy/genfs_contexts
@@ -1,2 +1,3 @@
 genfscon proc /sys/kernel/sched_pelt_multiplier u:object_r:proc_sched:s0
 genfscon sysfs /kernel/vendor_mm/pa_kill u:object_r:sysfs_pakills:s0
+genfscon debugfs /bts u:object_r:vendor_bts_debugfs:s0