1 # SPDX-License-Identifier: GPL-2.0-only
3 bool "Sample kernel code"
5 You can build and test sample kernel code here.
9 config SAMPLE_AUXDISPLAY
10 bool "auxdisplay sample"
11 depends on CC_CAN_LINK
13 config SAMPLE_TRACE_EVENTS
14 tristate "Build trace_events examples -- loadable modules only"
15 depends on EVENT_TRACING && m
17 This builds the trace event example module.
19 config SAMPLE_TRACE_CUSTOM_EVENTS
20 tristate "Build custom trace event example -- loadable modules only"
21 depends on EVENT_TRACING && m
23 This builds the custom trace event example module.
25 config SAMPLE_TRACE_PRINTK
26 tristate "Build trace_printk module - tests various trace_printk formats"
27 depends on EVENT_TRACING && m
29 This builds a module that calls trace_printk() and can be used to
30 test various trace_printk() calls from a module.
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
37 This builds an ftrace direct function example
38 that hooks to wake_up_process and prints the parameters.
40 config SAMPLE_FTRACE_DIRECT_MULTI
41 tristate "Build register_ftrace_direct_multi() example"
42 depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m
43 depends on HAVE_SAMPLE_FTRACE_DIRECT_MULTI
45 This builds an ftrace direct function example
46 that hooks to wake_up_process and schedule, and prints
47 the function addresses.
49 config SAMPLE_TRACE_ARRAY
50 tristate "Build sample module for kernel access to Ftrace instancess"
51 depends on EVENT_TRACING && m
53 This builds a module that demonstrates the use of various APIs to
54 access Ftrace instances from within the kernel.
57 tristate "Build kobject examples"
59 This config option will allow you to build a number of
60 different kobject sample modules showing how to use kobjects,
61 ksets, and ktypes properly.
63 If in doubt, say "N" here.
66 tristate "Build kprobes examples -- loadable modules only"
67 depends on KPROBES && m
69 This build several kprobes example modules.
71 config SAMPLE_KRETPROBES
72 tristate "Build kretprobes example -- loadable modules only"
74 depends on SAMPLE_KPROBES && KRETPROBES
76 config SAMPLE_HW_BREAKPOINT
77 tristate "Build kernel hardware breakpoint examples -- loadable module only"
78 depends on HAVE_HW_BREAKPOINT && m
80 This builds kernel hardware breakpoint example modules.
83 tristate "Build fprobe examples -- loadable modules only"
84 depends on FPROBE && m
86 This builds a fprobe example module. This module has an option 'symbol'.
87 You can specify a probed symbol or symbols separated with ','.
90 tristate "Build kfifo examples -- loadable modules only"
93 This config option will allow you to build a number of
94 different kfifo sample modules showing how to use the
97 If in doubt, say "N" here.
100 tristate "Build kdb command example -- loadable modules only"
101 depends on KGDB_KDB && m
103 Build an example of how to dynamically add the hello
104 command to the kdb shell.
106 config SAMPLE_QMI_CLIENT
107 tristate "Build qmi client sample -- loadable modules only"
111 select QCOM_QMI_HELPERS
113 Build an QMI client sample driver, which demonstrates how to
114 communicate with a remote QRTR service, using QMI encoded messages.
116 config SAMPLE_RPMSG_CLIENT
117 tristate "Build rpmsg client sample -- loadable modules only"
118 depends on RPMSG && m
120 Build an rpmsg client sample driver, which demonstrates how
121 to communicate with an AMP-configured remote processor over
124 config SAMPLE_LIVEPATCH
125 tristate "Build live patching samples -- loadable modules only"
126 depends on LIVEPATCH && m
128 Build sample live patch demonstrations.
130 config SAMPLE_CONFIGFS
131 tristate "Build configfs patching sample -- loadable modules only"
132 depends on CONFIGFS_FS && m
134 Builds a sample configfs interface.
136 config SAMPLE_CONNECTOR
137 tristate "Build connector sample -- loadable modules only"
138 depends on CONNECTOR && HEADERS_INSTALL && m
140 When enabled, this builds both a sample kernel module for
141 the connector interface and a user space tool to communicate
143 See also Documentation/driver-api/connector.rst
145 config SAMPLE_FANOTIFY_ERROR
146 bool "Build fanotify error monitoring sample"
147 depends on FANOTIFY && CC_CAN_LINK && HEADERS_INSTALL
149 When enabled, this builds an example code that uses the
150 FAN_FS_ERROR fanotify mechanism to monitor filesystem
152 See also Documentation/admin-guide/filesystem-monitoring.rst.
156 depends on CC_CAN_LINK && HEADERS_INSTALL
158 config SAMPLE_LANDLOCK
159 bool "Landlock example"
160 depends on CC_CAN_LINK && HEADERS_INSTALL
162 Build a simple Landlock sandbox manager able to start a process
163 restricted by a user-defined filesystem access control policy.
167 depends on CC_CAN_LINK && HEADERS_INSTALL
169 config SAMPLE_SECCOMP
170 bool "Build seccomp sample code"
171 depends on SECCOMP_FILTER && CC_CAN_LINK && HEADERS_INSTALL
173 Build samples of seccomp filters using various methods of
174 BPF filter construction.
178 depends on CC_CAN_LINK && HEADERS_INSTALL
182 depends on CC_CAN_LINK && HEADERS_INSTALL
184 Build UHID sample program.
186 config SAMPLE_VFIO_MDEV_MTTY
187 tristate "Build VFIO mtty example mediated device sample code"
191 Build a virtual tty sample driver for use as a VFIO
194 config SAMPLE_VFIO_MDEV_MDPY
195 tristate "Build VFIO mdpy example mediated device sample code"
199 Build a virtual display sample driver for use as a VFIO
200 mediated device. It is a simple framebuffer and supports
201 the region display interface (VFIO_GFX_PLANE_TYPE_REGION).
203 config SAMPLE_VFIO_MDEV_MDPY_FB
204 tristate "Build VFIO mdpy example guest fbdev driver"
206 select FB_CFB_FILLRECT
207 select FB_CFB_COPYAREA
208 select FB_CFB_IMAGEBLIT
210 Guest fbdev driver for the virtual display sample driver.
212 config SAMPLE_VFIO_MDEV_MBOCHS
213 tristate "Build VFIO mdpy example mediated device sample code"
216 select DMA_SHARED_BUFFER
218 Build a virtual display sample driver for use as a VFIO
219 mediated device. It supports the region display interface
220 (VFIO_GFX_PLANE_TYPE_DMABUF).
221 Emulate enough of qemu stdvga to make bochs-drm.ko happy.
222 That is basically the vram memory bar and the bochs dispi
223 interface vbe registers in the mmio register bar.
224 Specifically it does *not* include any legacy vga stuff.
225 Device looks a lot like "qemu -device secondary-vga".
227 config SAMPLE_ANDROID_BINDERFS
228 bool "Build Android binderfs example"
229 depends on CC_CAN_LINK && HEADERS_INSTALL
231 Builds a sample program to illustrate the use of the Android binderfs
235 bool "Build example programs that use new VFS system calls"
236 depends on CC_CAN_LINK && HEADERS_INSTALL
238 Build example userspace programs that use new VFS system calls such
239 as mount API and statx(). Note that this is restricted to the x86
240 arch whilst it accesses system calls that aren't yet in all arches.
242 config SAMPLE_INTEL_MEI
243 bool "Build example program working with intel mei driver"
245 depends on CC_CAN_LINK && HEADERS_INSTALL
247 Build a sample program to work with mei device.
249 config SAMPLE_WATCHDOG
250 bool "watchdog sample"
251 depends on CC_CAN_LINK
253 config SAMPLE_WATCH_QUEUE
254 bool "Build example watch_queue notification API consumer"
255 depends on CC_CAN_LINK && HEADERS_INSTALL
257 Build example userspace program to use the new mount_notify(),
258 sb_notify() syscalls and the KEYCTL_WATCH_KEY keyctl() function.
260 config SAMPLE_CORESIGHT_SYSCFG
261 tristate "Build example loadable module for CoreSight config"
262 depends on CORESIGHT && m
264 Build an example loadable module that adds new CoreSight features
265 and configuration using the CoreSight system configuration API.
266 This demonstrates how a user may create their own CoreSight
267 configurations and easily load them into the system at runtime.
269 source "samples/rust/Kconfig"
273 config HAVE_SAMPLE_FTRACE_DIRECT
276 config HAVE_SAMPLE_FTRACE_DIRECT_MULTI