Add lttng example

Author: hofbi

.bazelci/presubmit.yml

@@ -819,6 +819,14 @@ tasks:
     run_targets:
       - "//pkg_a:pkg_a_binary"
       - "//pkg_b:pkg_b_binary"
+  example_lttng_ust_rs:
+    name: LTTng UST RS example
+    platform: ubuntu2204
+    working_directory: examples/lttng_ust_rs
+    build_targets:
+      - "//..."
+    test_targets:
+      - "//..."
   ubuntu2204_bzlmod_bcr:
     name: bzlmod BCR presubmit
     platform: ubuntu2204

examples/all_crate_deps/MODULE.bazel.lock

@@ -0,0 +1,2 @@
+/bazel-*
+user.bazelrc

examples/lttng_ust_rs/.gitignore

@@ -0,0 +1,20 @@
+load("@rules_rust//cargo:defs.bzl", "cargo_build_script")
+load("@rules_rust//rust:defs.bzl", "rust_binary")
+
+rust_binary(
+    name = "lttng_ust_rs",
+    srcs = ["src/main.rs"],
+    deps = [
+        ":build_script",
+        "@crates//:lttng-ust",
+    ],
+)
+
+cargo_build_script(
+    name = "build_script",
+    srcs = ["build.rs"],
+    deps = [
+        "@crates//:lttng-ust",
+        "@crates//:lttng-ust-generate",
+    ],
+)