linux/samples/Kconfig
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   1# SPDX-License-Identifier: GPL-2.0-only
   2menuconfig SAMPLES
   3        bool "Sample kernel code"
   4        help
   5          You can build and test sample kernel code here.
   6
   7if SAMPLES
   8
   9config SAMPLE_AUXDISPLAY
  10        bool "auxdisplay sample"
  11        depends on CC_CAN_LINK
  12
  13config SAMPLE_TRACE_EVENTS
  14        tristate "Build trace_events examples -- loadable modules only"
  15        depends on EVENT_TRACING && m
  16        help
  17          This build trace event example modules.
  18
  19config SAMPLE_TRACE_PRINTK
  20        tristate "Build trace_printk module - tests various trace_printk formats"
  21        depends on EVENT_TRACING && m
  22        help
  23         This builds a module that calls trace_printk() and can be used to
  24         test various trace_printk() calls from a module.
  25
  26config SAMPLE_FTRACE_DIRECT
  27        tristate "Build register_ftrace_direct() example"
  28        depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m
  29        depends on X86_64 # has x86_64 inlined asm
  30        help
  31          This builds an ftrace direct function example
  32          that hooks to wake_up_process and prints the parameters.
  33
  34config SAMPLE_TRACE_ARRAY
  35        tristate "Build sample module for kernel access to Ftrace instancess"
  36        depends on EVENT_TRACING && m
  37        help
  38         This builds a module that demonstrates the use of various APIs to
  39         access Ftrace instances from within the kernel.
  40
  41config SAMPLE_KOBJECT
  42        tristate "Build kobject examples"
  43        help
  44          This config option will allow you to build a number of
  45          different kobject sample modules showing how to use kobjects,
  46          ksets, and ktypes properly.
  47
  48          If in doubt, say "N" here.
  49
  50config SAMPLE_KPROBES
  51        tristate "Build kprobes examples -- loadable modules only"
  52        depends on KPROBES && m
  53        help
  54          This build several kprobes example modules.
  55
  56config SAMPLE_KRETPROBES
  57        tristate "Build kretprobes example -- loadable modules only"
  58        default m
  59        depends on SAMPLE_KPROBES && KRETPROBES
  60
  61config SAMPLE_HW_BREAKPOINT
  62        tristate "Build kernel hardware breakpoint examples -- loadable module only"
  63        depends on HAVE_HW_BREAKPOINT && m
  64        help
  65          This builds kernel hardware breakpoint example modules.
  66
  67config SAMPLE_KFIFO
  68        tristate "Build kfifo examples -- loadable modules only"
  69        depends on m
  70        help
  71          This config option will allow you to build a number of
  72          different kfifo sample modules showing how to use the
  73          generic kfifo API.
  74
  75          If in doubt, say "N" here.
  76
  77config SAMPLE_KDB
  78        tristate "Build kdb command example -- loadable modules only"
  79        depends on KGDB_KDB && m
  80        help
  81          Build an example of how to dynamically add the hello
  82          command to the kdb shell.
  83
  84config SAMPLE_QMI_CLIENT
  85        tristate "Build qmi client sample -- loadable modules only"
  86        depends on m
  87        depends on ARCH_QCOM
  88        depends on NET
  89        select QCOM_QMI_HELPERS
  90        help
  91          Build an QMI client sample driver, which demonstrates how to
  92          communicate with a remote QRTR service, using QMI encoded messages.
  93
  94config SAMPLE_RPMSG_CLIENT
  95        tristate "Build rpmsg client sample -- loadable modules only"
  96        depends on RPMSG && m
  97        help
  98          Build an rpmsg client sample driver, which demonstrates how
  99          to communicate with an AMP-configured remote processor over
 100          the rpmsg bus.
 101
 102config SAMPLE_LIVEPATCH
 103        tristate "Build live patching samples -- loadable modules only"
 104        depends on LIVEPATCH && m
 105        help
 106          Build sample live patch demonstrations.
 107
 108config SAMPLE_CONFIGFS
 109        tristate "Build configfs patching sample -- loadable modules only"
 110        depends on CONFIGFS_FS && m
 111        help
 112          Builds a sample configfs interface.
 113
 114config SAMPLE_CONNECTOR
 115        tristate "Build connector sample -- loadable modules only"
 116        depends on CONNECTOR && HEADERS_INSTALL && m
 117        help
 118          When enabled, this builds both a sample kernel module for
 119          the connector interface and a user space tool to communicate
 120          with it.
 121          See also Documentation/driver-api/connector.rst
 122
 123config SAMPLE_HIDRAW
 124        bool "hidraw sample"
 125        depends on CC_CAN_LINK && HEADERS_INSTALL
 126
 127config SAMPLE_LANDLOCK
 128        bool "Landlock example"
 129        depends on CC_CAN_LINK && HEADERS_INSTALL
 130        help
 131          Build a simple Landlock sandbox manager able to start a process
 132          restricted by a user-defined filesystem access control policy.
 133
 134config SAMPLE_PIDFD
 135        bool "pidfd sample"
 136        depends on CC_CAN_LINK && HEADERS_INSTALL
 137
 138config SAMPLE_SECCOMP
 139        bool "Build seccomp sample code"
 140        depends on SECCOMP_FILTER && CC_CAN_LINK && HEADERS_INSTALL
 141        help
 142          Build samples of seccomp filters using various methods of
 143          BPF filter construction.
 144
 145config SAMPLE_TIMER
 146        bool "Timer sample"
 147        depends on CC_CAN_LINK && HEADERS_INSTALL
 148
 149config SAMPLE_UHID
 150        bool "UHID sample"
 151        depends on CC_CAN_LINK && HEADERS_INSTALL
 152        help
 153          Build UHID sample program.
 154
 155config SAMPLE_VFIO_MDEV_MTTY
 156        tristate "Build VFIO mtty example mediated device sample code -- loadable modules only"
 157        depends on VFIO_MDEV && m
 158        help
 159          Build a virtual tty sample driver for use as a VFIO
 160          mediated device
 161
 162config SAMPLE_VFIO_MDEV_MDPY
 163        tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
 164        depends on VFIO_MDEV && m
 165        help
 166          Build a virtual display sample driver for use as a VFIO
 167          mediated device.  It is a simple framebuffer and supports
 168          the region display interface (VFIO_GFX_PLANE_TYPE_REGION).
 169
 170config SAMPLE_VFIO_MDEV_MDPY_FB
 171        tristate "Build VFIO mdpy example guest fbdev driver -- loadable module only"
 172        depends on FB && m
 173        select FB_CFB_FILLRECT
 174        select FB_CFB_COPYAREA
 175        select FB_CFB_IMAGEBLIT
 176        help
 177          Guest fbdev driver for the virtual display sample driver.
 178
 179config SAMPLE_VFIO_MDEV_MBOCHS
 180        tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
 181        depends on VFIO_MDEV && m
 182        select DMA_SHARED_BUFFER
 183        help
 184          Build a virtual display sample driver for use as a VFIO
 185          mediated device.  It supports the region display interface
 186          (VFIO_GFX_PLANE_TYPE_DMABUF).
 187          Emulate enough of qemu stdvga to make bochs-drm.ko happy.
 188          That is basically the vram memory bar and the bochs dispi
 189          interface vbe registers in the mmio register bar.
 190          Specifically it does *not* include any legacy vga stuff.
 191          Device looks a lot like "qemu -device secondary-vga".
 192
 193config SAMPLE_ANDROID_BINDERFS
 194        bool "Build Android binderfs example"
 195        depends on CC_CAN_LINK && HEADERS_INSTALL
 196        help
 197          Builds a sample program to illustrate the use of the Android binderfs
 198          filesystem.
 199
 200config SAMPLE_VFS
 201        bool "Build example programs that use new VFS system calls"
 202        depends on CC_CAN_LINK && HEADERS_INSTALL
 203        help
 204          Build example userspace programs that use new VFS system calls such
 205          as mount API and statx().  Note that this is restricted to the x86
 206          arch whilst it accesses system calls that aren't yet in all arches.
 207
 208config SAMPLE_INTEL_MEI
 209        bool "Build example program working with intel mei driver"
 210        depends on INTEL_MEI
 211        depends on CC_CAN_LINK && HEADERS_INSTALL
 212        help
 213          Build a sample program to work with mei device.
 214
 215config SAMPLE_WATCHDOG
 216        bool "watchdog sample"
 217        depends on CC_CAN_LINK
 218
 219config SAMPLE_WATCH_QUEUE
 220        bool "Build example watch_queue notification API consumer"
 221        depends on CC_CAN_LINK && HEADERS_INSTALL
 222        help
 223          Build example userspace program to use the new mount_notify(),
 224          sb_notify() syscalls and the KEYCTL_WATCH_KEY keyctl() function.
 225
 226endif # SAMPLES
 227