commit 158576f699a2e6a9ccbfd316d69dfaac4e936c0d
author Corinna Vinschen <xda@vinschen.de> Mon Apr 09 22:55:59 2018 +0200
committer Michael Bestas <mkbestas@lineageos.org> Mon Apr 16 15:57:06 2018 +0300
tree 7debe2207244fb4ba8ac72fa15a9e7d5a42b9272
parent abe7e6559c10f222aeaf6a60f1ab37050d68b4e3

power: add back check for ro.vendor.extension_library

This partially reverts I0ce40bbefb8c867dda8ee5eb1f948af2106e692d,
"power: Using PerfHAL API".

Especially older systems don't provide libqti-perfd-client.so but this
is hardcoded since the aforementioned change.  Use the former code
checking for ro.vendor.extension_library and try to load that library if
the property exists before falling back to loading
libqti-perfd-client.so.

Change-Id: If89e3b88062be10af7cfd43b6ba92a22fda32754
Signed-off-by: Corinna Vinschen <xda@vinschen.de>

utils.c

diff --git a/utils.c b/utils.c
index 49a1c97..800fed5 100644
--- a/utils.c
+++ b/utils.c
@@ -67,14 +67,25 @@
 
 static void *get_qcopt_handle()
 {
+    char qcopt_lib_path[PATH_MAX] = {0};
     void *handle = NULL;
 
     dlerror();
 
-    handle = dlopen(PERF_HAL_PATH, RTLD_NOW);
+    if (property_get("ro.vendor.extension_library", qcopt_lib_path,
+                NULL)) {
+        handle = dlopen(qcopt_lib_path, RTLD_NOW);
+        if (!handle) {
+            ALOGE("Unable to open %s: %s\n", qcopt_lib_path,
+                    dlerror());
+        }
+    }
     if (!handle) {
-        ALOGE("Unable to open %s: %s\n", PERF_HAL_PATH,
-                dlerror());
+        handle = dlopen(PERF_HAL_PATH, RTLD_NOW);
+        if (!handle) {
+            ALOGE("Unable to open %s: %s\n", PERF_HAL_PATH,
+                    dlerror());
+        }
     }
 
     return handle;