Implement cgroupfs.

A skeleton implementation of cgroupfs. It supports trivial cpu and
memory controllers with no support for hierarchies.

PiperOrigin-RevId: 366561126

1 files changed, 47 insertions, 0 deletions

diff --git a/pkg/sentry/fsimpl/cgroupfs/BUILD b/pkg/sentry/fsimpl/cgroupfs/BUILD
new file mode 100644
index 000000000..48913068a
--- /dev/null
+++ b/pkg/sentry/fsimpl/cgroupfs/BUILD
@@ -0,0 +1,47 @@
+load("//tools:defs.bzl", "go_library")
+load("//tools/go_generics:defs.bzl", "go_template_instance")
+
+licenses(["notice"])
+
+go_template_instance(
+    name = "dir_refs",
+    out = "dir_refs.go",
+    package = "cgroupfs",
+    prefix = "dir",
+    template = "//pkg/refsvfs2:refs_template",
+    types = {
+        "T": "dir",
+    },
+)
+
+go_library(
+    name = "cgroupfs",
+    srcs = [
+        "base.go",
+        "cgroupfs.go",
+        "cpu.go",
+        "cpuacct.go",
+        "cpuset.go",
+        "dir_refs.go",
+        "memory.go",
+    ],
+    visibility = ["//pkg/sentry:internal"],
+    deps = [
+        "//pkg/abi/linux",
+        "//pkg/context",
+        "//pkg/coverage",
+        "//pkg/log",
+        "//pkg/refs",
+        "//pkg/refsvfs2",
+        "//pkg/sentry/arch",
+        "//pkg/sentry/fsimpl/kernfs",
+        "//pkg/sentry/kernel",
+        "//pkg/sentry/kernel/auth",
+        "//pkg/sentry/memmap",
+        "//pkg/sentry/usage",
+        "//pkg/sentry/vfs",
+        "//pkg/sync",
+        "//pkg/syserror",
+        "//pkg/usermem",
+    ],
+)