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load("//tools/go_stateify:defs.bzl", "go_library", "go_test")

package(licenses = ["notice"])

load("//tools/go_generics:defs.bzl", "go_template", "go_template_instance")

go_template(
    name = "generic_walker",
    srcs = [
        "walker_amd64.go",
    ],
    opt_types = [
        "Visitor",
    ],
    visibility = [":__pkg__"],
)

go_template_instance(
    name = "walker_map",
    out = "walker_map.go",
    package = "pagetables",
    prefix = "map",
    template = ":generic_walker",
    types = {
        "Visitor": "mapVisitor",
    },
)

go_template_instance(
    name = "walker_unmap",
    out = "walker_unmap.go",
    package = "pagetables",
    prefix = "unmap",
    template = ":generic_walker",
    types = {
        "Visitor": "unmapVisitor",
    },
)

go_template_instance(
    name = "walker_lookup",
    out = "walker_lookup.go",
    package = "pagetables",
    prefix = "lookup",
    template = ":generic_walker",
    types = {
        "Visitor": "lookupVisitor",
    },
)

go_template_instance(
    name = "walker_empty",
    out = "walker_empty.go",
    package = "pagetables",
    prefix = "empty",
    template = ":generic_walker",
    types = {
        "Visitor": "emptyVisitor",
    },
)

go_template_instance(
    name = "walker_check",
    out = "walker_check.go",
    package = "pagetables",
    prefix = "check",
    template = ":generic_walker",
    types = {
        "Visitor": "checkVisitor",
    },
)

go_library(
    name = "pagetables",
    srcs = [
        "allocator.go",
        "allocator_unsafe.go",
        "pagetables.go",
        "pagetables_amd64.go",
        "pagetables_x86.go",
        "pcids_x86.go",
        "walker_empty.go",
        "walker_lookup.go",
        "walker_map.go",
        "walker_unmap.go",
    ],
    importpath = "gvisor.dev/gvisor/pkg/sentry/platform/ring0/pagetables",
    visibility = [
        "//pkg/sentry/platform/kvm:__subpackages__",
        "//pkg/sentry/platform/ring0:__subpackages__",
    ],
    deps = ["//pkg/sentry/usermem"],
)

go_test(
    name = "pagetables_test",
    size = "small",
    srcs = [
        "pagetables_amd64_test.go",
        "pagetables_test.go",
        "walker_check.go",
    ],
    embed = [":pagetables"],
    deps = ["//pkg/sentry/usermem"],
)