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Search for subhal .so files in additional directories

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Fixes: 154634207
Test: Load onto flame and confirm that subhal .so
android.hardware.sensors@2.X-fakesubhal-config3.so loads when it is
living in the /vendor/lib64/hw directory using
adb shell lshal debug android.hardware.sensors@2.0::ISensors/default

Change-Id: I8a676b97f6f6992e8937ecf31c3b7af06e676ebb
Merged-In: I8a676b97f6f6992e8937ecf31c3b7af06e676ebb
This commit is contained in:
Stan Rokita
2020-04-28 17:12:13 -07:00
parent 6174f00cc6
commit b42bde95cb
2 changed files with 30 additions and 1 deletions
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21
sensors/2.0/multihal/HalProxy.cpp
View File

@@ -360,7 +360,7 @@ void HalProxy::initializeSubHalListFromConfigFile(const char* configFileName) {
} else {
std::string subHalLibraryFile;
while (subHalConfigStream >> subHalLibraryFile) {
void* handle = dlopen(subHalLibraryFile.c_str(), RTLD_NOW);
void* handle = getHandleForSubHalSharedObject(subHalLibraryFile);
if (handle == nullptr) {
ALOGE("dlopen failed for library: %s", subHalLibraryFile.c_str());
} else {
@@ -415,6 +415,25 @@ void HalProxy::initializeSensorList() {
}
}
void* HalProxy::getHandleForSubHalSharedObject(const std::string& filename) {
static const std::string kSubHalShareObjectLocations[] = {
"", // Default locations will be searched
#ifdef __LP64__
"/vendor/lib64/hw/", "/odm/lib64/", "/odm/lib64/hw/"
#else
"/vendor/lib/hw/", "/odm/lib/", "/odm/lib/hw/"
#endif
};
for (const std::string& dir : kSubHalShareObjectLocations) {
void* handle = dlopen((dir + filename).c_str(), RTLD_NOW);
if (handle != nullptr) {
return handle;
}
}
return nullptr;
}
void HalProxy::init() {
initializeSubHalCallbacks();
initializeSensorList();

10
sensors/2.0/multihal/include/HalProxy.h
View File

@@ -261,6 +261,16 @@ class HalProxy : public ISensors, public IScopedWakelockRefCounter {
*/
void initializeSensorList();
/**
* Try using the default include directories as well as the directories defined in
* kSubHalShareObjectLocations to get a handle for dlsym for a subhal.
*
* @param filename The file name to search for.
*
* @return The handle or nullptr if search failed.
*/
void* getHandleForSubHalSharedObject(const std::string& filename);
/**
* Calls the helper methods that all ctors use.
*/