Add VintfObject::getCompatibleKernelRequirement
Fixes: 139015688
Test: vintf_object_test
Test: libvintf_test
Change-Id: I31d5ac319bc61bd340dbc1196dbfc3107f6be101
diff --git a/VintfObject.cpp b/VintfObject.cpp
index 2badd18..98f821e 100644
--- a/VintfObject.cpp
+++ b/VintfObject.cpp
@@ -809,6 +809,36 @@
return checkDeprecation(inManifest, error);
}
+std::optional<KernelRequirement> VintfObject::getCompatibleKernelRequirement(std::string* error) {
+ auto matrix = getFrameworkCompatibilityMatrix();
+ if (!matrix) {
+ if (error) *error = "Cannot retrieve framework compatibility matrix";
+ return std::nullopt;
+ }
+ auto runtime_info = getRuntimeInfo();
+ if (!runtime_info) {
+ if (error) *error = "Cannot retrieve runtime information";
+ return std::nullopt;
+ }
+ auto reqs =
+ runtime_info->mKernel.getMatchedKernelRequirements(matrix->framework.mKernels, error);
+ if (reqs.empty()) {
+ if (error) error->insert(0, "Cannot find any matched kernel requirements: ");
+ return std::nullopt;
+ }
+ for (const MatrixKernel* matrixKernel : reqs) {
+ if (matrixKernel->conditions().empty()) {
+ return KernelRequirement(matrixKernel->minLts(),
+ matrix->getSourceMatrixLevel(matrixKernel));
+ }
+ }
+ KernelRequirement ret(reqs[0]->minLts(), matrix->getSourceMatrixLevel(reqs[0]));
+ LOG(ERROR) << "Cannot find kernel requirement with empty conditions; "
+ << "this should not happen. Returning (" << ret.minLts() << ", " << ret.level()
+ << ") as a heuristic.";
+ return ret;
+}
+
const std::unique_ptr<FileSystem>& VintfObject::getFileSystem() {
return mFileSystem;
}