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
129 depends on CC_CAN_LINK && HEADERS_INSTALL
131 config SAMPLE_SECCOMP
132 bool "Build seccomp sample code"
133 depends on SECCOMP_FILTER && CC_CAN_LINK && HEADERS_INSTALL
135 Build samples of seccomp filters using various methods of
136 BPF filter construction.
140 depends on CC_CAN_LINK && HEADERS_INSTALL
144 depends on CC_CAN_LINK && HEADERS_INSTALL
146 Build UHID sample program.
148 config SAMPLE_VFIO_MDEV_MTTY
149 tristate "Build VFIO mtty example mediated device sample code -- loadable modules only"
150 depends on VFIO_MDEV_DEVICE && m
152 Build a virtual tty sample driver for use as a VFIO
155 config SAMPLE_VFIO_MDEV_MDPY
156 tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
157 depends on VFIO_MDEV_DEVICE && m
159 Build a virtual display sample driver for use as a VFIO
160 mediated device. It is a simple framebuffer and supports
161 the region display interface (VFIO_GFX_PLANE_TYPE_REGION).
163 config SAMPLE_VFIO_MDEV_MDPY_FB
164 tristate "Build VFIO mdpy example guest fbdev driver -- loadable module only"
166 select FB_CFB_FILLRECT
167 select FB_CFB_COPYAREA
168 select FB_CFB_IMAGEBLIT
170 Guest fbdev driver for the virtual display sample driver.
172 config SAMPLE_VFIO_MDEV_MBOCHS
173 tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
174 depends on VFIO_MDEV_DEVICE && m
175 select DMA_SHARED_BUFFER
177 Build a virtual display sample driver for use as a VFIO
178 mediated device. It supports the region display interface
179 (VFIO_GFX_PLANE_TYPE_DMABUF).
180 Emulate enough of qemu stdvga to make bochs-drm.ko happy.
181 That is basically the vram memory bar and the bochs dispi
182 interface vbe registers in the mmio register bar.
183 Specifically it does *not* include any legacy vga stuff.
184 Device looks a lot like "qemu -device secondary-vga".
186 config SAMPLE_ANDROID_BINDERFS
187 bool "Build Android binderfs example"
188 depends on CC_CAN_LINK && HEADERS_INSTALL
190 Builds a sample program to illustrate the use of the Android binderfs
194 bool "Build example programs that use new VFS system calls"
195 depends on CC_CAN_LINK && HEADERS_INSTALL
197 Build example userspace programs that use new VFS system calls such
198 as mount API and statx(). Note that this is restricted to the x86
199 arch whilst it accesses system calls that aren't yet in all arches.
201 config SAMPLE_INTEL_MEI
202 bool "Build example program working with intel mei driver"
204 depends on CC_CAN_LINK && HEADERS_INSTALL
206 Build a sample program to work with mei device.
208 config SAMPLE_WATCHDOG
209 bool "watchdog sample"
210 depends on CC_CAN_LINK
212 config SAMPLE_WATCH_QUEUE
213 bool "Build example /dev/watch_queue notification consumer"
214 depends on CC_CAN_LINK && HEADERS_INSTALL
216 Build example userspace program to use the new mount_notify(),
217 sb_notify() syscalls and the KEYCTL_WATCH_KEY keyctl() function.