KernelUtils.h - add helpers
Change-Id: I03eff7e10a81f07d5e08fad49f753fa5b6be344e
diff --git a/staticlibs/native/bpf_headers/include/bpf/KernelUtils.h b/staticlibs/native/bpf_headers/include/bpf/KernelUtils.h
index 59257b8..417a5c4 100644
--- a/staticlibs/native/bpf_headers/include/bpf/KernelUtils.h
+++ b/staticlibs/native/bpf_headers/include/bpf/KernelUtils.h
@@ -42,10 +42,26 @@
return kver;
}
-static inline __unused bool isAtLeastKernelVersion(unsigned major, unsigned minor, unsigned sub) {
+static inline bool isAtLeastKernelVersion(unsigned major, unsigned minor, unsigned sub) {
return kernelVersion() >= KVER(major, minor, sub);
}
+static inline bool isKernelVersion(unsigned major, unsigned minor) {
+ return isAtLeastKernelVersion(major, minor, 0) && !isAtLeastKernelVersion(major, minor + 1, 0);
+}
+
+static inline bool __unused isLtsKernel() {
+ return isKernelVersion(4, 4) || // minimum for Android R
+ isKernelVersion(4, 9) || // minimum for Android S & T
+ isKernelVersion(4, 14) || // minimum for Android U
+ isKernelVersion(4, 19) || // minimum for Android V
+ isKernelVersion(5, 4) || // first supported in Android R
+ isKernelVersion(5, 10) || // first supported in Android S
+ isKernelVersion(5, 15) || // first supported in Android T
+ isKernelVersion(6, 1) || // first supported in Android U
+ isKernelVersion(6, 6); // first supported in Android V
+}
+
// Figure out the bitness of userspace.
// Trivial and known at compile time.
static constexpr bool isUserspace32bit() {