Merge "Load vulkan driver from an apex when ro.vulkan.apex is set" into main am: a4f2d92c23 am: 1a18312ba9

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2818498

Change-Id: I7f9c9c5755daaf9789867848ce954cc67d763630
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

1 files changed, 29 insertions, 6 deletions

diff --git a/vulkan/libvulkan/driver.cpp b/vulkan/libvulkan/driver.cpp
index 233fd07a53..1cf30ae67b 100644
--- a/vulkan/libvulkan/driver.cpp
+++ b/vulkan/libvulkan/driver.cpp
@@ -46,6 +46,8 @@
 using namespace android::hardware::configstore;
 using namespace android::hardware::configstore::V1_0;
 
+extern "C" android_namespace_t* android_get_exported_namespace(const char*);
+
 // #define ENABLE_ALLOC_CALLSTACKS 1
 #if ENABLE_ALLOC_CALLSTACKS
 #include <utils/CallStack.h>
@@ -159,6 +161,7 @@ const std::array<const char*, 2> HAL_SUBNAME_KEY_PROPERTIES = {{
     "ro.board.platform",
 }};
 constexpr int LIB_DL_FLAGS = RTLD_LOCAL | RTLD_NOW;
+constexpr char RO_VULKAN_APEX_PROPERTY[] = "ro.vulkan.apex";
 
 // LoadDriver returns:
 // * 0 when succeed, or
@@ -166,6 +169,7 @@ constexpr int LIB_DL_FLAGS = RTLD_LOCAL | RTLD_NOW;
 // * -EINVAL when fail to find HAL_MODULE_INFO_SYM_AS_STR or
 //   HWVULKAN_HARDWARE_MODULE_ID in the library.
 int LoadDriver(android_namespace_t* library_namespace,
+               const char* ns_name,
                const hwvulkan_module_t** module) {
     ATRACE_CALL();
 
@@ -184,10 +188,8 @@ int LoadDriver(android_namespace_t* library_namespace,
             };
             so = android_dlopen_ext(lib_name.c_str(), LIB_DL_FLAGS, &dlextinfo);
             if (!so) {
-                ALOGE(
-                    "Could not load %s from updatable gfx driver namespace: "
-                    "%s.",
-                    lib_name.c_str(), dlerror());
+                ALOGE("Could not load %s from %s namespace: %s.",
+                      lib_name.c_str(), ns_name, dlerror());
             }
         } else {
             // load built-in driver
@@ -215,12 +217,30 @@ int LoadDriver(android_namespace_t* library_namespace,
     return 0;
 }
 
+int LoadDriverFromApex(const hwvulkan_module_t** module) {
+    ATRACE_CALL();
+
+    auto apex_name = android::base::GetProperty(RO_VULKAN_APEX_PROPERTY, "");
+    if (apex_name == "") {
+        return -ENOENT;
+    }
+    // Get linker namespace for Vulkan APEX
+    std::replace(apex_name.begin(), apex_name.end(), '.', '_');
+    auto ns = android_get_exported_namespace(apex_name.c_str());
+    if (!ns) {
+        return -ENOENT;
+    }
+    android::GraphicsEnv::getInstance().setDriverToLoad(
+        android::GpuStatsInfo::Driver::VULKAN);
+    return LoadDriver(ns, apex_name.c_str(), module);
+}
+
 int LoadBuiltinDriver(const hwvulkan_module_t** module) {
     ATRACE_CALL();
 
     android::GraphicsEnv::getInstance().setDriverToLoad(
         android::GpuStatsInfo::Driver::VULKAN);
-    return LoadDriver(nullptr, module);
+    return LoadDriver(nullptr, nullptr, module);
 }
 
 int LoadUpdatedDriver(const hwvulkan_module_t** module) {
@@ -231,7 +251,7 @@ int LoadUpdatedDriver(const hwvulkan_module_t** module) {
         return -ENOENT;
     android::GraphicsEnv::getInstance().setDriverToLoad(
         android::GpuStatsInfo::Driver::VULKAN_UPDATED);
-    int result = LoadDriver(ns, module);
+    int result = LoadDriver(ns, "updatable gfx driver", module);
     if (result != 0) {
         LOG_ALWAYS_FATAL(
             "couldn't find an updated Vulkan implementation from %s",
@@ -260,6 +280,9 @@ bool Hal::Open() {
 
     result = LoadUpdatedDriver(&module);
     if (result == -ENOENT) {
+        result = LoadDriverFromApex(&module);
+    }
+    if (result == -ENOENT) {
         result = LoadBuiltinDriver(&module);
     }
     if (result != 0) {