Move to C API of libnativeloader.

Test: m
Bug: 119840313
Merged-In: I11c44c46595cde768ee639e6c5a4cce1559e32f7
(cherry picked from commit a655dac726de2b2085700a4afe9456ac0ab302b7)

Change-Id: I2ccacbe8937be7f26311364618f46e7f83274e85

Exempt-From-Owner-Approval: Cherry-pick of approved CL in master.

2 files changed, 8 insertions, 7 deletions

diff --git a/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h b/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
index 17e8f6ba47..784e2c8903 100644
--- a/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
+++ b/libs/graphicsenv/include/graphicsenv/GraphicsEnv.h
@@ -23,7 +23,7 @@ struct android_namespace_t;
 
 namespace android {
 
-class NativeLoaderNamespace;
+struct NativeLoaderNamespace;
 
 class GraphicsEnv {
 public:
diff --git a/vulkan/libvulkan/layers_extensions.cpp b/vulkan/libvulkan/layers_extensions.cpp
index 009b257029..ba4cf00451 100644
--- a/vulkan/libvulkan/layers_extensions.cpp
+++ b/vulkan/libvulkan/layers_extensions.cpp
@@ -139,12 +139,12 @@ bool LayerLibrary::Open() {
         auto app_namespace = android::GraphicsEnv::getInstance().getAppNamespace();
         if (app_namespace &&
             !android::base::StartsWith(path_, kSystemLayerLibraryDir)) {
-            std::string error_msg;
-            dlhandle_ = OpenNativeLibrary(
+            char* error_msg = nullptr;
+            dlhandle_ = OpenNativeLibraryInNamespace(
                 app_namespace, path_.c_str(), &native_bridge_, &error_msg);
             if (!dlhandle_) {
-                ALOGE("failed to load layer library '%s': %s", path_.c_str(),
-                      error_msg.c_str());
+                ALOGE("failed to load layer library '%s': %s", path_.c_str(), error_msg);
+                android::NativeLoaderFreeErrorMessage(error_msg);
                 refcount_ = 0;
                 return false;
             }
@@ -165,9 +165,10 @@ void LayerLibrary::Close() {
     std::lock_guard<std::mutex> lock(mutex_);
     if (--refcount_ == 0) {
         ALOGV("closing layer library '%s'", path_.c_str());
-        std::string error_msg;
+        char* error_msg = nullptr;
         if (!android::CloseNativeLibrary(dlhandle_, native_bridge_, &error_msg)) {
-            ALOGE("failed to unload library '%s': %s", path_.c_str(), error_msg.c_str());
+            ALOGE("failed to unload library '%s': %s", path_.c_str(), error_msg);
+            android::NativeLoaderFreeErrorMessage(error_msg);
             refcount_++;
         } else {
            dlhandle_ = nullptr;