# SPDX-License-Identifier: GPL-2.0-only
menuconfig SAMPLES
bool "Sample kernel code"
help
You can build and test sample kernel code here.
if SAMPLES
config SAMPLE_AUXDISPLAY
bool "auxdisplay sample"
depends on CC_CAN_LINK
config SAMPLE_TRACE_EVENTS
tristate "Build trace_events examples -- loadable modules only"
depends on EVENT_TRACING && m
help
This builds the trace event example module.
config SAMPLE_TRACE_CUSTOM_EVENTS
tristate "Build custom trace event example -- loadable modules only"
depends on EVENT_TRACING && m
help
This builds the custom trace event example module.
config SAMPLE_TRACE_PRINTK
tristate "Build trace_printk module - tests various trace_printk formats"
depends on EVENT_TRACING && m
help
This builds a module that calls trace_printk() and can be used to
test various trace_printk() calls from a module.
config SAMPLE_FTRACE_DIRECT
tristate "Build register_ftrace_direct() example"
depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m
depends on HAVE_SAMPLE_FTRACE_DIRECT
help
This builds an ftrace direct function example
that hooks to wake_up_process and prints the parameters.
config SAMPLE_FTRACE_DIRECT_MULTI
tristate "Build register_ftrace_direct() on multiple ips example"
depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m
depends on HAVE_SAMPLE_FTRACE_DIRECT_MULTI
help
This builds an ftrace direct function example
that hooks to wake_up_process and schedule, and prints
the function addresses.
config SAMPLE_FTRACE_OPS
tristate "Build custom ftrace ops example"
depends on FUNCTION_TRACER
help
This builds an ftrace ops example that hooks two functions and
measures the time taken to invoke one function a number of times.
config SAMPLE_TRACE_ARRAY
tristate "Build sample module for kernel access to Ftrace instancess"
depends on EVENT_TRACING && m
help
This builds a module that demonstrates the use of various APIs to
access Ftrace instances from within the kernel.
config SAMPLE_KOBJECT
tristate "Build kobject examples"
help
This config option will allow you to build a number of
different kobject sample modules showing how to use kobjects,
ksets, and ktypes properly.
If in doubt, say "N" here.
config SAMPLE_KPROBES
tristate "Build kprobes examples -- loadable modules only"
depends on KPROBES && m
help
This build several kprobes example modules.
config SAMPLE_KRETPROBES
tristate "Build kretprobes example -- loadable modules only"
default m
depends on SAMPLE_KPROBES && KRETPROBES
config SAMPLE_HW_BREAKPOINT
tristate "Build kernel hardware breakpoint examples -- loadable module only"
depends on HAVE_HW_BREAKPOINT && m
help
This builds kernel hardware breakpoint example modules.
config SAMPLE_FPROBE
tristate "Build fprobe examples -- loadable modules only"
depends on FPROBE && m
help
This builds a fprobe example module. This module has an option 'symbol'.
You can specify a probed symbol or symbols separated with ','.
config SAMPLE_KFIFO
tristate "Build kfifo examples -- loadable modules only"
depends on m
help
This config option will allow you to build a number of
different kfifo sample modules showing how to use the
generic kfifo API.
If in doubt, say "N" here.
config SAMPLE_KDB
tristate "Build kdb command example -- loadable modules only"
depends on KGDB_KDB && m
help
Build an example of how to dynamically add the hello
command to the kdb shell.
config SAMPLE_QMI_CLIENT
tristate "Build qmi client sample -- loadable modules only"
depends on m
depends on ARCH_QCOM
depends on NET
select QCOM_QMI_HELPERS
help
Build an QMI client sample driver, which demonstrates how to
communicate with a remote QRTR service, using QMI encoded messages.
config SAMPLE_RPMSG_CLIENT
tristate "Build rpmsg client sample -- loadable modules only"
depends on RPMSG && m
help
Build an rpmsg client sample driver, which demonstrates how
to communicate with an AMP-configured remote processor over
the rpmsg bus.
config SAMPLE_LIVEPATCH
tristate "Build live patching samples -- loadable modules only"
depends on LIVEPATCH && m
help
Build sample live patch demonstrations.
config SAMPLE_CONFIGFS
tristate "Build configfs patching sample -- loadable modules only"
depends on CONFIGFS_FS && m
help
Builds a sample configfs interface.
config SAMPLE_CONNECTOR
tristate "Build connector sample -- loadable modules only"
depends on CONNECTOR && HEADERS_INSTALL && m
help
When enabled, this builds both a sample kernel module for
the connector interface and a user space tool to communicate
with it.
See also Documentation/driver-api/connector.rst
config SAMPLE_FANOTIFY_ERROR
bool "Build fanotify error monitoring sample"
depends on FANOTIFY && CC_CAN_LINK && HEADERS_INSTALL
help
When enabled, this builds an example code that uses the
FAN_FS_ERROR fanotify mechanism to monitor filesystem
errors.
See also Documentation/admin-guide/filesystem-monitoring.rst.
config SAMPLE_HIDRAW
bool "hidraw sample"
depends on CC_CAN_LINK && HEADERS_INSTALL
config SAMPLE_LANDLOCK
bool "Landlock example"
depends on CC_CAN_LINK && HEADERS_INSTALL
help
Build a simple Landlock sandbox manager able to start a process
restricted by a user-defined filesystem access control policy.
config SAMPLE_PIDFD
bool "pidfd sample"
depends on CC_CAN_LINK && HEADERS_INSTALL
config SAMPLE_SECCOMP
bool "Build seccomp sample code"
depends on SECCOMP_FILTER && CC_CAN_LINK && HEADERS_INSTALL
help
Build samples of seccomp filters using various methods of
BPF filter construction.
config SAMPLE_TIMER
bool "Timer sample"
depends on CC_CAN_LINK && HEADERS_INSTALL
config SAMPLE_UHID
bool "UHID sample"
depends on CC_CAN_LINK && HEADERS_INSTALL
help
Build UHID sample program.
config SAMPLE_VFIO_MDEV_MTTY
tristate "Build VFIO mtty example mediated device sample code"
depends on VFIO
select VFIO_MDEV
help
Build a virtual tty sample driver for use as a VFIO
mediated device
config SAMPLE_VFIO_MDEV_MDPY
tristate "Build VFIO mdpy example mediated device sample code"
depends on VFIO
select VFIO_MDEV
help
Build a virtual display sample driver for use as a VFIO
mediated device. It is a simple framebuffer and supports
the region display interface (VFIO_GFX_PLANE_TYPE_REGION).
config SAMPLE_VFIO_MDEV_MDPY_FB
tristate "Build VFIO mdpy example guest fbdev driver"
depends on FB
select FB_IOMEM_HELPERS
help
Guest fbdev driver for the virtual display sample driver.
config SAMPLE_VFIO_MDEV_MBOCHS
tristate "Build VFIO mbochs example mediated device sample code"
depends on VFIO
select VFIO_MDEV
select DMA_SHARED_BUFFER
help
Build a virtual display sample driver for use as a VFIO
mediated device. It supports the region display interface
(VFIO_GFX_PLANE_TYPE_DMABUF).
Emulate enough of qemu stdvga to make bochs-drm.ko happy.
That is basically the vram memory bar and the bochs dispi
interface vbe registers in the mmio register bar.
Specifically it does *not* include any legacy vga stuff.
Device looks a lot like "qemu -device secondary-vga".
config SAMPLE_ANDROID_BINDERFS
bool "Build Android binderfs example"
depends on CC_CAN_LINK && HEADERS_INSTALL
help
Builds a sample program to illustrate the use of the Android binderfs
filesystem.
config SAMPLE_VFS
bool "Build example programs that use new VFS system calls"
depends on CC_CAN_LINK && HEADERS_INSTALL
help
Build example userspace programs that use new VFS system calls such
as mount API and statx(). Note that this is restricted to the x86
arch whilst it accesses system calls that aren't yet in all arches.
config SAMPLE_INTEL_MEI
bool "Build example program working with intel mei driver"
depends on INTEL_MEI
depends on CC_CAN_LINK && HEADERS_INSTALL
help
Build a sample program to work with mei device.
config SAMPLE_TPS6594_PFSM
bool "Build example program working with TPS6594 PFSM driver"
depends on HEADERS_INSTALL
depends on CC_CAN_LINK
help
Build a sample program to work with PFSM devices.
config SAMPLE_WATCHDOG
bool "watchdog sample"
depends on CC_CAN_LINK
config SAMPLE_WATCH_QUEUE
bool "Build example watch_queue notification API consumer"
depends on CC_CAN_LINK && HEADERS_INSTALL
help
Build example userspace program to use the new mount_notify(),
sb_notify() syscalls and the KEYCTL_WATCH_KEY keyctl() function.
config SAMPLE_CORESIGHT_SYSCFG
tristate "Build example loadable module for CoreSight config"
depends on CORESIGHT && m
help
Build an example loadable module that adds new CoreSight features
and configuration using the CoreSight system configuration API.
This demonstrates how a user may create their own CoreSight
configurations and easily load them into the system at runtime.
config SAMPLE_KMEMLEAK
tristate "Simple test for the kernel memory leak detector"
depends on DEBUG_KMEMLEAK && m
help
Build a sample program which have explicitly leaks memory to test
kmemleak
config SAMPLE_CGROUP
bool "Build cgroup sample code"
depends on CGROUPS && CC_CAN_LINK && HEADERS_INSTALL
help
Build samples that demonstrate the usage of the cgroup API.
source "samples/rust/Kconfig"
endif # SAMPLES
config HAVE_SAMPLE_FTRACE_DIRECT
bool
config HAVE_SAMPLE_FTRACE_DIRECT_MULTI
bool
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