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 build trace event example modules.
19 config SAMPLE_TRACE_PRINTK
20 tristate "Build trace_printk module - tests various trace_printk formats"
21 depends on EVENT_TRACING && m
23 This builds a module that calls trace_printk() and can be used to
24 test various trace_printk() calls from a module.
26 config SAMPLE_FTRACE_DIRECT
27 tristate "Build register_ftrace_direct() example"
28 depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m
29 depends on HAVE_SAMPLE_FTRACE_DIRECT
31 This builds an ftrace direct function example
32 that hooks to wake_up_process and prints the parameters.
34 config SAMPLE_TRACE_ARRAY
35 tristate "Build sample module for kernel access to Ftrace instancess"
36 depends on EVENT_TRACING && m
38 This builds a module that demonstrates the use of various APIs to
39 access Ftrace instances from within the kernel.
42 tristate "Build kobject examples"
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.
48 If in doubt, say "N" here.
51 tristate "Build kprobes examples -- loadable modules only"
52 depends on KPROBES && m
54 This build several kprobes example modules.
56 config SAMPLE_KRETPROBES
57 tristate "Build kretprobes example -- loadable modules only"
59 depends on SAMPLE_KPROBES && KRETPROBES
61 config SAMPLE_HW_BREAKPOINT
62 tristate "Build kernel hardware breakpoint examples -- loadable module only"
63 depends on HAVE_HW_BREAKPOINT && m
65 This builds kernel hardware breakpoint example modules.
68 tristate "Build kfifo examples -- loadable modules only"
71 This config option will allow you to build a number of
72 different kfifo sample modules showing how to use the
75 If in doubt, say "N" here.
78 tristate "Build kdb command example -- loadable modules only"
79 depends on KGDB_KDB && m
81 Build an example of how to dynamically add the hello
82 command to the kdb shell.
84 config SAMPLE_QMI_CLIENT
85 tristate "Build qmi client sample -- loadable modules only"
89 select QCOM_QMI_HELPERS
91 Build an QMI client sample driver, which demonstrates how to
92 communicate with a remote QRTR service, using QMI encoded messages.
94 config SAMPLE_RPMSG_CLIENT
95 tristate "Build rpmsg client sample -- loadable modules only"
98 Build an rpmsg client sample driver, which demonstrates how
99 to communicate with an AMP-configured remote processor over
102 config SAMPLE_LIVEPATCH
103 tristate "Build live patching samples -- loadable modules only"
104 depends on LIVEPATCH && m
106 Build sample live patch demonstrations.
108 config SAMPLE_CONFIGFS
109 tristate "Build configfs patching sample -- loadable modules only"
110 depends on CONFIGFS_FS && m
112 Builds a sample configfs interface.
114 config SAMPLE_CONNECTOR
115 tristate "Build connector sample -- loadable modules only"
116 depends on CONNECTOR && HEADERS_INSTALL && m
118 When enabled, this builds both a sample kernel module for
119 the connector interface and a user space tool to communicate
121 See also Documentation/driver-api/connector.rst
123 config SAMPLE_FANOTIFY_ERROR
124 bool "Build fanotify error monitoring sample"
125 depends on FANOTIFY && CC_CAN_LINK && HEADERS_INSTALL
127 When enabled, this builds an example code that uses the
128 FAN_FS_ERROR fanotify mechanism to monitor filesystem
130 See also Documentation/admin-guide/filesystem-monitoring.rst.
134 depends on CC_CAN_LINK && HEADERS_INSTALL
136 config SAMPLE_LANDLOCK
137 bool "Landlock example"
138 depends on CC_CAN_LINK && HEADERS_INSTALL
140 Build a simple Landlock sandbox manager able to start a process
141 restricted by a user-defined filesystem access control policy.
145 depends on CC_CAN_LINK && HEADERS_INSTALL
147 config SAMPLE_SECCOMP
148 bool "Build seccomp sample code"
149 depends on SECCOMP_FILTER && CC_CAN_LINK && HEADERS_INSTALL
151 Build samples of seccomp filters using various methods of
152 BPF filter construction.
156 depends on CC_CAN_LINK && HEADERS_INSTALL
160 depends on CC_CAN_LINK && HEADERS_INSTALL
162 Build UHID sample program.
164 config SAMPLE_VFIO_MDEV_MTTY
165 tristate "Build VFIO mtty example mediated device sample code -- loadable modules only"
166 depends on VFIO_MDEV && m
168 Build a virtual tty sample driver for use as a VFIO
171 config SAMPLE_VFIO_MDEV_MDPY
172 tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
173 depends on VFIO_MDEV && m
175 Build a virtual display sample driver for use as a VFIO
176 mediated device. It is a simple framebuffer and supports
177 the region display interface (VFIO_GFX_PLANE_TYPE_REGION).
179 config SAMPLE_VFIO_MDEV_MDPY_FB
180 tristate "Build VFIO mdpy example guest fbdev driver -- loadable module only"
182 select FB_CFB_FILLRECT
183 select FB_CFB_COPYAREA
184 select FB_CFB_IMAGEBLIT
186 Guest fbdev driver for the virtual display sample driver.
188 config SAMPLE_VFIO_MDEV_MBOCHS
189 tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
190 depends on VFIO_MDEV && m
191 select DMA_SHARED_BUFFER
193 Build a virtual display sample driver for use as a VFIO
194 mediated device. It supports the region display interface
195 (VFIO_GFX_PLANE_TYPE_DMABUF).
196 Emulate enough of qemu stdvga to make bochs-drm.ko happy.
197 That is basically the vram memory bar and the bochs dispi
198 interface vbe registers in the mmio register bar.
199 Specifically it does *not* include any legacy vga stuff.
200 Device looks a lot like "qemu -device secondary-vga".
202 config SAMPLE_ANDROID_BINDERFS
203 bool "Build Android binderfs example"
204 depends on CC_CAN_LINK && HEADERS_INSTALL
206 Builds a sample program to illustrate the use of the Android binderfs
210 bool "Build example programs that use new VFS system calls"
211 depends on CC_CAN_LINK && HEADERS_INSTALL
213 Build example userspace programs that use new VFS system calls such
214 as mount API and statx(). Note that this is restricted to the x86
215 arch whilst it accesses system calls that aren't yet in all arches.
217 config SAMPLE_INTEL_MEI
218 bool "Build example program working with intel mei driver"
220 depends on CC_CAN_LINK && HEADERS_INSTALL
222 Build a sample program to work with mei device.
224 config SAMPLE_WATCHDOG
225 bool "watchdog sample"
226 depends on CC_CAN_LINK
228 config SAMPLE_WATCH_QUEUE
229 bool "Build example watch_queue notification API consumer"
230 depends on CC_CAN_LINK && HEADERS_INSTALL
232 Build example userspace program to use the new mount_notify(),
233 sb_notify() syscalls and the KEYCTL_WATCH_KEY keyctl() function.
237 config HAVE_SAMPLE_FTRACE_DIRECT
240 config HAVE_SAMPLE_FTRACE_MULTI_DIRECT