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 X86_64 # has x86_64 inlined asm
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
125 depends on CC_CAN_LINK && HEADERS_INSTALL
127 config SAMPLE_LANDLOCK
128 bool "Landlock example"
129 depends on CC_CAN_LINK && HEADERS_INSTALL
131 Build a simple Landlock sandbox manager able to start a process
132 restricted by a user-defined filesystem access control policy.
136 depends on CC_CAN_LINK && HEADERS_INSTALL
138 config SAMPLE_SECCOMP
139 bool "Build seccomp sample code"
140 depends on SECCOMP_FILTER && CC_CAN_LINK && HEADERS_INSTALL
142 Build samples of seccomp filters using various methods of
143 BPF filter construction.
147 depends on CC_CAN_LINK && HEADERS_INSTALL
151 depends on CC_CAN_LINK && HEADERS_INSTALL
153 Build UHID sample program.
155 config SAMPLE_VFIO_MDEV_MTTY
156 tristate "Build VFIO mtty example mediated device sample code -- loadable modules only"
157 depends on VFIO_MDEV_DEVICE && m
159 Build a virtual tty sample driver for use as a VFIO
162 config SAMPLE_VFIO_MDEV_MDPY
163 tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
164 depends on VFIO_MDEV_DEVICE && m
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).
170 config SAMPLE_VFIO_MDEV_MDPY_FB
171 tristate "Build VFIO mdpy example guest fbdev driver -- loadable module only"
173 select FB_CFB_FILLRECT
174 select FB_CFB_COPYAREA
175 select FB_CFB_IMAGEBLIT
177 Guest fbdev driver for the virtual display sample driver.
179 config SAMPLE_VFIO_MDEV_MBOCHS
180 tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
181 depends on VFIO_MDEV_DEVICE && m
182 select DMA_SHARED_BUFFER
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".
193 config SAMPLE_ANDROID_BINDERFS
194 bool "Build Android binderfs example"
195 depends on CC_CAN_LINK && HEADERS_INSTALL
197 Builds a sample program to illustrate the use of the Android binderfs
201 bool "Build example programs that use new VFS system calls"
202 depends on CC_CAN_LINK && HEADERS_INSTALL
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.
208 config SAMPLE_INTEL_MEI
209 bool "Build example program working with intel mei driver"
211 depends on CC_CAN_LINK && HEADERS_INSTALL
213 Build a sample program to work with mei device.
215 config SAMPLE_WATCHDOG
216 bool "watchdog sample"
217 depends on CC_CAN_LINK
219 config SAMPLE_WATCH_QUEUE
220 bool "Build example watch_queue notification API consumer"
221 depends on CC_CAN_LINK && HEADERS_INSTALL
223 Build example userspace program to use the new mount_notify(),
224 sb_notify() syscalls and the KEYCTL_WATCH_KEY keyctl() function.