Track paths and provide a rename hook.

This change also adds extensive testing to the p9 package via mocks. The sanity
checks and type checks are moved from the gofer into the core package, where
they can be more easily validated.

PiperOrigin-RevId: 218296768
Change-Id: I4fc3c326e7bf1e0e140a454cbacbcc6fd617ab55

9 files changed, 18 insertions, 14 deletions

diff --git a/pkg/sentry/platform/interrupt/BUILD b/pkg/sentry/platform/interrupt/BUILD
index 35121321a..dbafa3204 100644
--- a/pkg/sentry/platform/interrupt/BUILD
+++ b/pkg/sentry/platform/interrupt/BUILD
@@ -1,7 +1,7 @@
-package(licenses = ["notice"])  # Apache 2.0
-
 load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
 
+package(licenses = ["notice"])  # Apache 2.0
+
 go_library(
     name = "interrupt",
     srcs = [
diff --git a/pkg/sentry/platform/kvm/BUILD b/pkg/sentry/platform/kvm/BUILD
index 4ef9e20d7..1b71e629f 100644
--- a/pkg/sentry/platform/kvm/BUILD
+++ b/pkg/sentry/platform/kvm/BUILD
@@ -1,6 +1,7 @@
+load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
+
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
 load("//tools/go_generics:defs.bzl", "go_template_instance")
 
 go_template_instance(
diff --git a/pkg/sentry/platform/kvm/testutil/BUILD b/pkg/sentry/platform/kvm/testutil/BUILD
index e779e3893..1dffe94a4 100644
--- a/pkg/sentry/platform/kvm/testutil/BUILD
+++ b/pkg/sentry/platform/kvm/testutil/BUILD
@@ -1,7 +1,7 @@
-package(licenses = ["notice"])  # Apache 2.0
-
 load("//tools/go_stateify:defs.bzl", "go_library")
 
+package(licenses = ["notice"])  # Apache 2.0
+
 go_library(
     name = "testutil",
     testonly = 1,
diff --git a/pkg/sentry/platform/procid/BUILD b/pkg/sentry/platform/procid/BUILD
index ba68d48f4..d3398d1e8 100644
--- a/pkg/sentry/platform/procid/BUILD
+++ b/pkg/sentry/platform/procid/BUILD
@@ -1,7 +1,7 @@
-package(licenses = ["notice"])  # Apache 2.0
-
 load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
 
+package(licenses = ["notice"])  # Apache 2.0
+
 go_library(
     name = "procid",
     srcs = [
diff --git a/pkg/sentry/platform/ptrace/BUILD b/pkg/sentry/platform/ptrace/BUILD
index debae058b..2eb354ad4 100644
--- a/pkg/sentry/platform/ptrace/BUILD
+++ b/pkg/sentry/platform/ptrace/BUILD
@@ -1,7 +1,7 @@
-package(licenses = ["notice"])  # Apache 2.0
-
 load("//tools/go_stateify:defs.bzl", "go_library")
 
+package(licenses = ["notice"])  # Apache 2.0
+
 go_library(
     name = "ptrace",
     srcs = [
diff --git a/pkg/sentry/platform/ring0/BUILD b/pkg/sentry/platform/ring0/BUILD
index 2485eb2eb..c35d49f2d 100644
--- a/pkg/sentry/platform/ring0/BUILD
+++ b/pkg/sentry/platform/ring0/BUILD
@@ -1,6 +1,7 @@
+load("//tools/go_stateify:defs.bzl", "go_library")
+
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library")
 load("//tools/go_generics:defs.bzl", "go_template", "go_template_instance")
 
 go_template(
diff --git a/pkg/sentry/platform/ring0/gen_offsets/BUILD b/pkg/sentry/platform/ring0/gen_offsets/BUILD
index 3bce56985..b76d7974e 100644
--- a/pkg/sentry/platform/ring0/gen_offsets/BUILD
+++ b/pkg/sentry/platform/ring0/gen_offsets/BUILD
@@ -1,6 +1,7 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_binary")
+
 package(licenses = ["notice"])  # Apache 2.0
 
-load("@io_bazel_rules_go//go:def.bzl", "go_binary")
 load("//tools/go_generics:defs.bzl", "go_template_instance")
 
 go_template_instance(
diff --git a/pkg/sentry/platform/ring0/pagetables/BUILD b/pkg/sentry/platform/ring0/pagetables/BUILD
index 7a86e2234..de1b920af 100644
--- a/pkg/sentry/platform/ring0/pagetables/BUILD
+++ b/pkg/sentry/platform/ring0/pagetables/BUILD
@@ -1,6 +1,7 @@
+load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
+
 package(licenses = ["notice"])  # Apache 2.0
 
-load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
 load("//tools/go_generics:defs.bzl", "go_template", "go_template_instance")
 
 go_template(
diff --git a/pkg/sentry/platform/safecopy/BUILD b/pkg/sentry/platform/safecopy/BUILD
index 7dcf6e561..614d9e21e 100644
--- a/pkg/sentry/platform/safecopy/BUILD
+++ b/pkg/sentry/platform/safecopy/BUILD
@@ -1,7 +1,7 @@
-package(licenses = ["notice"])  # Apache 2.0
-
 load("//tools/go_stateify:defs.bzl", "go_library", "go_test")
 
+package(licenses = ["notice"])  # Apache 2.0
+
 go_library(
     name = "safecopy",
     srcs = [