Add libtimeinstate for reading uid time-in-state BPF map
Add a library to simplify reading the per-UID time_in_state data
collected using eBPF.
Also add some basic gtests to test the provided interface
Bug: 78498733
Test: gtests pass on crosshatch after loading time_in_state bpf
program
Change-Id: I997e0fd2faad398c7b427084a08edacb9405f089
Signed-off-by: Connor O'Brien <connoro@google.com>
diff --git a/libs/cputimeinstate/Android.bp b/libs/cputimeinstate/Android.bp
new file mode 100644
index 0000000..28cb138
--- /dev/null
+++ b/libs/cputimeinstate/Android.bp
@@ -0,0 +1,30 @@
+cc_library {
+ name: "libtimeinstate",
+ srcs: ["cputimeinstate.cpp"],
+ shared_libs: [
+ "libbase",
+ "libbpf",
+ "libbpf_android",
+ "liblog",
+ "libnetdutils"
+ ],
+ cflags: [
+ "-Werror",
+ "-Wall",
+ "-Wextra",
+ ],
+}
+
+cc_test {
+ name: "libtimeinstate_test",
+ srcs: ["testtimeinstate.cpp"],
+ shared_libs: [
+ "libtimeinstate",
+ ],
+ cflags: [
+ "-Werror",
+ "-Wall",
+ "-Wextra",
+ ],
+}
+