mirror of
https://github.com/netbirdio/gvisor.git
synced 2026-05-22 17:12:49 -07:00
Jamie Liu
7920b5b40a
- Move ktime.VariableTimer to kernel.timekeeperTcpipTimer, its only use case. This allows timekeeperTcpipTimer to use concrete types kernel.timekeeperClock and ktime.SampledTimer instead of ktime.Clock and ktime.Timer, saving a tiny amount of memory (interface values consist of two pointers) and CPU (for interface method calls). - Fix a bug where timekeeperTcpipTimer expiration can cancel a racing call to timekeeperTcpipTimer.Reset() (see use of new field timekeeperTcpipTimer.resets). - Define Listener.NotifyTimer directly on timekeeperTcpipTimer (dropping ktime.functionNotifier), and move goroutine spawning from the anonymous function in ktime.AfterFunc() into timekeeperTcpipTimer.NotifyTimer(). This slightly simplifies the control flow and saves an allocation for the anonymous function object. - Use monotonicClock rather than realtimeClock. It doesn't make sense for time-of-day clock adjustments to affect netstack timeouts, and this is consistent with tcpip.stdClock => time.AfterFunc => runtime.timer. PiperOrigin-RevId: 695504159
418 lines
10 KiB
Python
418 lines
10 KiB
Python
load("//pkg/sync/locking:locking.bzl", "declare_mutex", "declare_rwmutex")
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load("//tools:defs.bzl", "go_library", "go_test", "proto_library")
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load("//tools/go_generics:defs.bzl", "go_template_instance")
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package(
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default_applicable_licenses = ["//:license"],
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licenses = ["notice"],
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)
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go_template_instance(
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name = "atomicptr_bucket_slice",
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out = "atomicptr_bucket_slice_unsafe.go",
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package = "kernel",
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prefix = "descriptorBucketSlice",
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template = "//pkg/sync/atomicptr:generic_atomicptr",
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types = {
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"Value": "descriptorBucketSlice",
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},
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)
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go_template_instance(
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name = "atomicptr_bucket",
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out = "atomicptr_bucket_unsafe.go",
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package = "kernel",
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prefix = "descriptorBucket",
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template = "//pkg/sync/atomicptr:generic_atomicptr",
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types = {
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"Value": "descriptorBucket",
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},
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)
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go_template_instance(
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name = "atomicptr_descriptor",
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out = "atomicptr_descriptor_unsafe.go",
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package = "kernel",
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prefix = "descriptor",
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template = "//pkg/sync/atomicptr:generic_atomicptr",
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types = {
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"Value": "descriptor",
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},
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)
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declare_mutex(
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name = "user_counters_mutex",
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out = "user_counters_mutex.go",
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package = "kernel",
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prefix = "userCounters",
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)
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declare_rwmutex(
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name = "taskset_mutex",
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out = "taskset_mutex.go",
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package = "kernel",
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prefix = "taskSet",
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)
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declare_mutex(
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name = "task_mutex",
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out = "task_mutex.go",
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nested_lock_names = ["child"],
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package = "kernel",
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prefix = "task",
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)
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declare_mutex(
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name = "task_work_mutex",
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out = "task_work_mutex.go",
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package = "kernel",
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prefix = "taskWork",
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)
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declare_mutex(
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name = "cgroup_mutex",
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out = "cgroup_mutex.go",
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package = "kernel",
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prefix = "cgroup",
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)
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declare_mutex(
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name = "fd_table_mutex",
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out = "fd_table_mutex.go",
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package = "kernel",
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prefix = "fdTable",
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)
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declare_mutex(
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name = "running_tasks_mutex",
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out = "running_tasks_mutex.go",
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package = "kernel",
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prefix = "runningTasks",
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)
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declare_mutex(
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name = "signal_handlers_mutex",
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out = "signal_handlers_mutex.go",
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nested_lock_names = ["tg"],
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package = "kernel",
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prefix = "signalHandlers",
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)
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declare_mutex(
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name = "thread_group_timer_mutex",
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out = "thread_group_timer_mutex.go",
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package = "kernel",
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prefix = "threadGroupTimer",
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)
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declare_mutex(
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name = "timekeeper_tcpip_timer_mutex",
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out = "timekeeper_tcpip_timer_mutex.go",
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package = "kernel",
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prefix = "timekeeperTcpipTimer",
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)
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declare_mutex(
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name = "cgroup_mounts_mutex",
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out = "cgroup_mounts_mutex.go",
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package = "kernel",
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prefix = "cgroupMounts",
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)
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go_template_instance(
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name = "pending_signals_list",
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out = "pending_signals_list.go",
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package = "kernel",
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prefix = "pendingSignal",
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template = "//pkg/ilist:generic_list",
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types = {
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"Element": "*pendingSignal",
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"Linker": "*pendingSignal",
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},
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)
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go_template_instance(
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name = "process_group_list",
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out = "process_group_list.go",
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package = "kernel",
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prefix = "processGroup",
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template = "//pkg/ilist:generic_list",
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types = {
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"Element": "*ProcessGroup",
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"Linker": "*ProcessGroup",
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},
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)
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go_template_instance(
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name = "session_list",
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out = "session_list.go",
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package = "kernel",
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prefix = "session",
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template = "//pkg/ilist:generic_list",
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types = {
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"Element": "*Session",
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"Linker": "*Session",
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},
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)
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go_template_instance(
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name = "task_list",
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out = "task_list.go",
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package = "kernel",
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prefix = "task",
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template = "//pkg/ilist:generic_list",
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types = {
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"Element": "*Task",
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"Linker": "*Task",
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},
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)
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go_template_instance(
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name = "fd_table_refs",
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out = "fd_table_refs.go",
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package = "kernel",
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prefix = "FDTable",
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template = "//pkg/refs:refs_template",
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types = {
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"T": "FDTable",
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},
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)
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go_template_instance(
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name = "fs_context_refs",
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out = "fs_context_refs.go",
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package = "kernel",
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prefix = "FSContext",
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template = "//pkg/refs:refs_template",
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types = {
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"T": "FSContext",
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},
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)
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go_template_instance(
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name = "process_group_refs",
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out = "process_group_refs.go",
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package = "kernel",
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prefix = "ProcessGroup",
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template = "//pkg/refs:refs_template",
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types = {
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"T": "ProcessGroup",
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},
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)
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go_template_instance(
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name = "session_refs",
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out = "session_refs.go",
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package = "kernel",
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prefix = "Session",
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template = "//pkg/refs:refs_template",
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types = {
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"T": "Session",
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},
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)
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proto_library(
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name = "uncaught_signal",
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srcs = ["uncaught_signal.proto"],
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visibility = ["//visibility:public"],
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deps = ["//pkg/sentry/arch:registers_proto"],
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)
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go_library(
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name = "kernel",
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srcs = [
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"aio.go",
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"atomicptr_bucket_slice_unsafe.go",
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"atomicptr_bucket_unsafe.go",
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"atomicptr_descriptor_unsafe.go",
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"cgroup.go",
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"cgroup_mounts_mutex.go",
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"cgroup_mutex.go",
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"context.go",
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"fd_table.go",
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"fd_table_mutex.go",
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"fd_table_refs.go",
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"fd_table_unsafe.go",
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"fs_context.go",
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"fs_context_refs.go",
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"ipc_namespace.go",
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"kcov.go",
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"kcov_unsafe.go",
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"kernel.go",
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"kernel_opts.go",
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"kernel_restore.go",
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"kernel_state.go",
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"pending_signals.go",
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"pending_signals_list.go",
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"pending_signals_state.go",
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"posixtimer.go",
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"process_group_list.go",
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"process_group_refs.go",
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"ptrace.go",
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"ptrace_amd64.go",
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"ptrace_arm64.go",
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"rseq.go",
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"running_tasks_mutex.go",
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"seccheck.go",
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"seccomp.go",
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"session_list.go",
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"session_refs.go",
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"sessions.go",
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"signal.go",
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"signal_handlers.go",
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"signal_handlers_mutex.go",
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"syscalls.go",
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"syscalls_state.go",
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"syslog.go",
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"task.go",
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"task_acct.go",
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"task_block.go",
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"task_cgroup.go",
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"task_clone.go",
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"task_context.go",
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"task_exec.go",
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"task_exit.go",
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"task_futex.go",
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"task_identity.go",
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"task_image.go",
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"task_key.go",
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"task_list.go",
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"task_log.go",
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"task_mutex.go",
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"task_net.go",
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"task_run.go",
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"task_sched.go",
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"task_signals.go",
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"task_start.go",
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"task_stop.go",
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"task_syscall.go",
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"task_usermem.go",
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"task_work.go",
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"task_work_mutex.go",
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"taskset_mutex.go",
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"thread_group.go",
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"thread_group_timer_mutex.go",
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"thread_group_unsafe.go",
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"threads.go",
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"threads_impl.go",
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"timekeeper.go",
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"timekeeper_state.go",
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"timekeeper_tcpip_timer_mutex.go",
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"tty.go",
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"user_counters_mutex.go",
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"uts_namespace.go",
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"vdso.go",
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"version.go",
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],
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imports = [
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"gvisor.dev/gvisor/pkg/bpf",
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"gvisor.dev/gvisor/pkg/tcpip",
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],
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marshal = True,
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visibility = ["//:sandbox"],
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deps = [
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":uncaught_signal_go_proto",
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"//pkg/abi",
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"//pkg/abi/linux",
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"//pkg/abi/linux/errno",
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"//pkg/abi/sentry",
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"//pkg/atomicbitops",
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"//pkg/bitmap",
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"//pkg/bits",
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"//pkg/bpf",
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"//pkg/cleanup",
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"//pkg/context",
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"//pkg/coverage",
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"//pkg/cpuid",
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"//pkg/devutil",
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"//pkg/errors",
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"//pkg/errors/linuxerr",
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"//pkg/eventchannel",
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"//pkg/fd",
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"//pkg/fspath",
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"//pkg/goid",
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"//pkg/hostarch",
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"//pkg/log",
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"//pkg/marshal",
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"//pkg/marshal/primitive",
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"//pkg/metric",
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"//pkg/refs",
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"//pkg/safemem",
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"//pkg/secio",
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"//pkg/sentry/arch",
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"//pkg/sentry/fsimpl/kernfs",
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"//pkg/sentry/fsimpl/lock",
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"//pkg/sentry/fsimpl/mqfs",
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"//pkg/sentry/fsimpl/nsfs",
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"//pkg/sentry/fsimpl/pipefs",
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"//pkg/sentry/fsimpl/sockfs",
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"//pkg/sentry/fsimpl/timerfd",
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"//pkg/sentry/fsimpl/tmpfs",
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"//pkg/sentry/hostcpu",
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"//pkg/sentry/inet",
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"//pkg/sentry/kernel/auth",
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"//pkg/sentry/kernel/futex",
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"//pkg/sentry/kernel/ipc",
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"//pkg/sentry/kernel/mq",
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"//pkg/sentry/kernel/msgqueue",
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"//pkg/sentry/kernel/sched",
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"//pkg/sentry/kernel/semaphore",
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"//pkg/sentry/kernel/shm",
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"//pkg/sentry/ktime",
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"//pkg/sentry/limits",
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"//pkg/sentry/loader",
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"//pkg/sentry/memmap",
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"//pkg/sentry/mm",
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"//pkg/sentry/pgalloc",
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"//pkg/sentry/platform",
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"//pkg/sentry/seccheck",
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"//pkg/sentry/seccheck/points:points_go_proto",
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"//pkg/sentry/socket/netlink/port",
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"//pkg/sentry/socket/unix/transport",
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"//pkg/sentry/time",
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"//pkg/sentry/unimpl",
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"//pkg/sentry/unimpl:unimplemented_syscall_go_proto",
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"//pkg/sentry/uniqueid",
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"//pkg/sentry/usage",
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"//pkg/sentry/vfs",
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"//pkg/state",
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"//pkg/state/wire",
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"//pkg/sync",
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"//pkg/sync/locking",
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"//pkg/syserr",
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"//pkg/tcpip",
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"//pkg/tcpip/stack",
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"//pkg/usermem",
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"//pkg/waiter",
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"@org_golang_google_protobuf//proto:go_default_library",
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"@org_golang_x_sys//unix:go_default_library",
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],
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)
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go_test(
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name = "kernel_test",
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size = "small",
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srcs = [
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"fd_table_test.go",
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"table_test.go",
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"task_test.go",
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"timekeeper_test.go",
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],
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library = ":kernel",
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deps = [
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"//pkg/abi",
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"//pkg/context",
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"//pkg/errors/linuxerr",
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"//pkg/hostarch",
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"//pkg/sentry/arch",
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"//pkg/sentry/contexttest",
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"//pkg/sentry/kernel/sched",
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"//pkg/sentry/limits",
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"//pkg/sentry/pgalloc",
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"//pkg/sentry/time",
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"//pkg/sentry/usage",
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"//pkg/sentry/vfs",
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"//pkg/sync",
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],
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)
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