Move ring0 package.

This allows the package to serve as a general purpose ring0 support package, as
opposed to being bound to specific sentry platforms.

Updates #5039

PiperOrigin-RevId: 355220044

1 files changed, 40 insertions, 0 deletions

diff --git a/pkg/ring0/gen_offsets/BUILD b/pkg/ring0/gen_offsets/BUILD
new file mode 100644
index 000000000..15b93d61c
--- /dev/null
+++ b/pkg/ring0/gen_offsets/BUILD
@@ -0,0 +1,40 @@
+load("//tools:defs.bzl", "go_binary")
+load("//tools/go_generics:defs.bzl", "go_template_instance")
+
+package(licenses = ["notice"])
+
+go_template_instance(
+    name = "defs_impl_arm64",
+    out = "defs_impl_arm64.go",
+    package = "main",
+    template = "//pkg/ring0:defs_arm64",
+)
+
+go_template_instance(
+    name = "defs_impl_amd64",
+    out = "defs_impl_amd64.go",
+    package = "main",
+    template = "//pkg/ring0:defs_amd64",
+)
+
+go_binary(
+    name = "gen_offsets",
+    srcs = [
+        "defs_impl_amd64.go",
+        "defs_impl_arm64.go",
+        "main.go",
+    ],
+    # Use the libc malloc to avoid any extra dependencies. This is required to
+    # pass the sentry deps test.
+    system_malloc = True,
+    visibility = [
+        "//pkg/ring0:__pkg__",
+        "//pkg/sentry/platform/kvm:__pkg__",
+    ],
+    deps = [
+        "//pkg/cpuid",
+        "//pkg/ring0/pagetables",
+        "//pkg/sentry/arch",
+        "//pkg/usermem",
+    ],
+)