samples/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 menuconfig SAMPLES
   3         bool "Sample kernel code"
   4         help
   5           You can build and test sample kernel code here.
   6
   7 if SAMPLES
   8
   9 config SAMPLE_AUXDISPLAY
  10         bool "auxdisplay sample"
  11         depends on CC_CAN_LINK
  12
  13 config SAMPLE_TRACE_EVENTS
  14         tristate "Build trace_events examples -- loadable modules only"
  15         depends on EVENT_TRACING && m
  16         help
  17           This builds the trace event example module.
  18
  19 config SAMPLE_TRACE_CUSTOM_EVENTS
  20         tristate "Build custom trace event example -- loadable modules only"
  21         depends on EVENT_TRACING && m
  22         help
  23           This builds the custom trace event example module.
  24
  25 config SAMPLE_TRACE_PRINTK
  26         tristate "Build trace_printk module - tests various trace_printk formats"
  27         depends on EVENT_TRACING && m
  28         help
  29          This builds a module that calls trace_printk() and can be used to
  30          test various trace_printk() calls from a module.
  31
  32 config SAMPLE_FTRACE_DIRECT
  33         tristate "Build register_ftrace_direct() example"
  34         depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m
  35         depends on HAVE_SAMPLE_FTRACE_DIRECT
  36         help
  37           This builds an ftrace direct function example
  38           that hooks to wake_up_process and prints the parameters.
  39
  40 config SAMPLE_FTRACE_DIRECT_MULTI
  41         tristate "Build register_ftrace_direct() on multiple ips example"
  42         depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m
  43         depends on HAVE_SAMPLE_FTRACE_DIRECT_MULTI
  44         help
  45           This builds an ftrace direct function example
  46           that hooks to wake_up_process and schedule, and prints
  47           the function addresses.
  48
  49 config SAMPLE_FTRACE_OPS
  50         tristate "Build custom ftrace ops example"
  51         depends on FUNCTION_TRACER
  52         help
  53           This builds an ftrace ops example that hooks two functions and
  54           measures the time taken to invoke one function a number of times.
  55
  56 config SAMPLE_TRACE_ARRAY
  57         tristate "Build sample module for kernel access to Ftrace instancess"
  58         depends on EVENT_TRACING && m
  59         help
  60          This builds a module that demonstrates the use of various APIs to
  61          access Ftrace instances from within the kernel.
  62
  63 config SAMPLE_KOBJECT
  64         tristate "Build kobject examples"
  65         help
  66           This config option will allow you to build a number of
  67           different kobject sample modules showing how to use kobjects,
  68           ksets, and ktypes properly.
  69
  70           If in doubt, say "N" here.
  71
  72 config SAMPLE_KPROBES
  73         tristate "Build kprobes examples -- loadable modules only"
  74         depends on KPROBES && m
  75         help
  76           This build several kprobes example modules.
  77
  78 config SAMPLE_KRETPROBES
  79         tristate "Build kretprobes example -- loadable modules only"
  80         default m
  81         depends on SAMPLE_KPROBES && KRETPROBES
  82
  83 config SAMPLE_HW_BREAKPOINT
  84         tristate "Build kernel hardware breakpoint examples -- loadable module only"
  85         depends on HAVE_HW_BREAKPOINT && m
  86         help
  87           This builds kernel hardware breakpoint example modules.
  88
  89 config SAMPLE_FPROBE
  90         tristate "Build fprobe examples -- loadable modules only"
  91         depends on FPROBE && m
  92         help
  93           This builds a fprobe example module. This module has an option 'symbol'.
  94           You can specify a probed symbol or symbols separated with ','.
  95
  96 config SAMPLE_KFIFO
  97         tristate "Build kfifo examples -- loadable modules only"
  98         depends on m
  99         help
 100           This config option will allow you to build a number of
 101           different kfifo sample modules showing how to use the
 102           generic kfifo API.
 103
 104           If in doubt, say "N" here.
 105
 106 config SAMPLE_KDB
 107         tristate "Build kdb command example -- loadable modules only"
 108         depends on KGDB_KDB && m
 109         help
 110           Build an example of how to dynamically add the hello
 111           command to the kdb shell.
 112
 113 config SAMPLE_QMI_CLIENT
 114         tristate "Build qmi client sample -- loadable modules only"
 115         depends on m
 116         depends on ARCH_QCOM
 117         depends on NET
 118         select QCOM_QMI_HELPERS
 119         help
 120           Build an QMI client sample driver, which demonstrates how to
 121           communicate with a remote QRTR service, using QMI encoded messages.
 122
 123 config SAMPLE_RPMSG_CLIENT
 124         tristate "Build rpmsg client sample -- loadable modules only"
 125         depends on RPMSG && m
 126         help
 127           Build an rpmsg client sample driver, which demonstrates how
 128           to communicate with an AMP-configured remote processor over
 129           the rpmsg bus.
 130
 131 config SAMPLE_LIVEPATCH
 132         tristate "Build live patching samples -- loadable modules only"
 133         depends on LIVEPATCH && m
 134         help
 135           Build sample live patch demonstrations.
 136
 137 config SAMPLE_CONFIGFS
 138         tristate "Build configfs patching sample -- loadable modules only"
 139         depends on CONFIGFS_FS && m
 140         help
 141           Builds a sample configfs interface.
 142
 143 config SAMPLE_CONNECTOR
 144         tristate "Build connector sample -- loadable modules only"
 145         depends on CONNECTOR && HEADERS_INSTALL && m
 146         help
 147           When enabled, this builds both a sample kernel module for
 148           the connector interface and a user space tool to communicate
 149           with it.
 150           See also Documentation/driver-api/connector.rst
 151
 152 config SAMPLE_FANOTIFY_ERROR
 153         bool "Build fanotify error monitoring sample"
 154         depends on FANOTIFY && CC_CAN_LINK && HEADERS_INSTALL
 155         help
 156           When enabled, this builds an example code that uses the
 157           FAN_FS_ERROR fanotify mechanism to monitor filesystem
 158           errors.
 159           See also Documentation/admin-guide/filesystem-monitoring.rst.
 160
 161 config SAMPLE_HIDRAW
 162         bool "hidraw sample"
 163         depends on CC_CAN_LINK && HEADERS_INSTALL
 164
 165 config SAMPLE_LANDLOCK
 166         bool "Landlock example"
 167         depends on CC_CAN_LINK && HEADERS_INSTALL
 168         help
 169           Build a simple Landlock sandbox manager able to start a process
 170           restricted by a user-defined filesystem access control policy.
 171
 172 config SAMPLE_PIDFD
 173         bool "pidfd sample"
 174         depends on CC_CAN_LINK && HEADERS_INSTALL
 175
 176 config SAMPLE_SECCOMP
 177         bool "Build seccomp sample code"
 178         depends on SECCOMP_FILTER && CC_CAN_LINK && HEADERS_INSTALL
 179         help
 180           Build samples of seccomp filters using various methods of
 181           BPF filter construction.
 182
 183 config SAMPLE_TIMER
 184         bool "Timer sample"
 185         depends on CC_CAN_LINK && HEADERS_INSTALL
 186
 187 config SAMPLE_UHID
 188         bool "UHID sample"
 189         depends on CC_CAN_LINK && HEADERS_INSTALL
 190         help
 191           Build UHID sample program.
 192
 193 config SAMPLE_VFIO_MDEV_MTTY
 194         tristate "Build VFIO mtty example mediated device sample code"
 195         depends on VFIO
 196         select VFIO_MDEV
 197         help
 198           Build a virtual tty sample driver for use as a VFIO
 199           mediated device
 200
 201 config SAMPLE_VFIO_MDEV_MDPY
 202         tristate "Build VFIO mdpy example mediated device sample code"
 203         depends on VFIO
 204         select VFIO_MDEV
 205         help
 206           Build a virtual display sample driver for use as a VFIO
 207           mediated device.  It is a simple framebuffer and supports
 208           the region display interface (VFIO_GFX_PLANE_TYPE_REGION).
 209
 210 config SAMPLE_VFIO_MDEV_MDPY_FB
 211         tristate "Build VFIO mdpy example guest fbdev driver"
 212         depends on FB
 213         select FB_CFB_FILLRECT
 214         select FB_CFB_COPYAREA
 215         select FB_CFB_IMAGEBLIT
 216         help
 217           Guest fbdev driver for the virtual display sample driver.
 218
 219 config SAMPLE_VFIO_MDEV_MBOCHS
 220         tristate "Build VFIO mbochs example mediated device sample code"
 221         depends on VFIO
 222         select VFIO_MDEV
 223         select DMA_SHARED_BUFFER
 224         help
 225           Build a virtual display sample driver for use as a VFIO
 226           mediated device.  It supports the region display interface
 227           (VFIO_GFX_PLANE_TYPE_DMABUF).
 228           Emulate enough of qemu stdvga to make bochs-drm.ko happy.
 229           That is basically the vram memory bar and the bochs dispi
 230           interface vbe registers in the mmio register bar.
 231           Specifically it does *not* include any legacy vga stuff.
 232           Device looks a lot like "qemu -device secondary-vga".
 233
 234 config SAMPLE_ANDROID_BINDERFS
 235         bool "Build Android binderfs example"
 236         depends on CC_CAN_LINK && HEADERS_INSTALL
 237         help
 238           Builds a sample program to illustrate the use of the Android binderfs
 239           filesystem.
 240
 241 config SAMPLE_VFS
 242         bool "Build example programs that use new VFS system calls"
 243         depends on CC_CAN_LINK && HEADERS_INSTALL
 244         help
 245           Build example userspace programs that use new VFS system calls such
 246           as mount API and statx().  Note that this is restricted to the x86
 247           arch whilst it accesses system calls that aren't yet in all arches.
 248
 249 config SAMPLE_INTEL_MEI
 250         bool "Build example program working with intel mei driver"
 251         depends on INTEL_MEI
 252         depends on CC_CAN_LINK && HEADERS_INSTALL
 253         help
 254           Build a sample program to work with mei device.
 255
 256 config SAMPLE_TPS6594_PFSM
 257         bool "Build example program working with TPS6594 PFSM driver"
 258         depends on HEADERS_INSTALL
 259         depends on CC_CAN_LINK
 260         help
 261           Build a sample program to work with PFSM devices.
 262
 263 config SAMPLE_WATCHDOG
 264         bool "watchdog sample"
 265         depends on CC_CAN_LINK
 266
 267 config SAMPLE_WATCH_QUEUE
 268         bool "Build example watch_queue notification API consumer"
 269         depends on CC_CAN_LINK && HEADERS_INSTALL
 270         help
 271           Build example userspace program to use the new mount_notify(),
 272           sb_notify() syscalls and the KEYCTL_WATCH_KEY keyctl() function.
 273
 274 config SAMPLE_CORESIGHT_SYSCFG
 275         tristate "Build example loadable module for CoreSight config"
 276         depends on CORESIGHT && m
 277         help
 278           Build an example loadable module that adds new CoreSight features
 279           and configuration using the CoreSight system configuration API.
 280           This demonstrates how a user may create their own CoreSight
 281           configurations and easily load them into the system at runtime.
 282
 283 config SAMPLE_KMEMLEAK
 284         tristate "Simple test for the kernel memory leak detector"
 285         depends on DEBUG_KMEMLEAK && m
 286         help
 287           Build a sample program which have explicitly leaks memory to test
 288           kmemleak
 289
 290 source "samples/rust/Kconfig"
 291
 292 endif # SAMPLES
 293
 294 config HAVE_SAMPLE_FTRACE_DIRECT
 295         bool
 296
 297 config HAVE_SAMPLE_FTRACE_DIRECT_MULTI
 298         bool