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_TRACE_EVENTS
10 tristate "Build trace_events examples -- loadable modules only"
11 depends on EVENT_TRACING && m
13 This build trace event example modules.
15 config SAMPLE_TRACE_PRINTK
16 tristate "Build trace_printk module - tests various trace_printk formats"
17 depends on EVENT_TRACING && m
19 This builds a module that calls trace_printk() and can be used to
20 test various trace_printk() calls from a module.
22 config SAMPLE_FTRACE_DIRECT
23 tristate "Build register_ftrace_direct() example"
24 depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m
25 depends on X86_64 # has x86_64 inlined asm
27 This builds an ftrace direct function example
28 that hooks to wake_up_process and prints the parameters.
31 tristate "Build kobject examples"
33 This config option will allow you to build a number of
34 different kobject sample modules showing how to use kobjects,
35 ksets, and ktypes properly.
37 If in doubt, say "N" here.
40 tristate "Build kprobes examples -- loadable modules only"
41 depends on KPROBES && m
43 This build several kprobes example modules.
45 config SAMPLE_KRETPROBES
46 tristate "Build kretprobes example -- loadable modules only"
48 depends on SAMPLE_KPROBES && KRETPROBES
50 config SAMPLE_HW_BREAKPOINT
51 tristate "Build kernel hardware breakpoint examples -- loadable module only"
52 depends on HAVE_HW_BREAKPOINT && m
54 This builds kernel hardware breakpoint example modules.
57 tristate "Build kfifo examples -- loadable modules only"
60 This config option will allow you to build a number of
61 different kfifo sample modules showing how to use the
64 If in doubt, say "N" here.
67 tristate "Build kdb command example -- loadable modules only"
68 depends on KGDB_KDB && m
70 Build an example of how to dynamically add the hello
71 command to the kdb shell.
73 config SAMPLE_QMI_CLIENT
74 tristate "Build qmi client sample -- loadable modules only"
78 select QCOM_QMI_HELPERS
80 Build an QMI client sample driver, which demonstrates how to
81 communicate with a remote QRTR service, using QMI encoded messages.
83 config SAMPLE_RPMSG_CLIENT
84 tristate "Build rpmsg client sample -- loadable modules only"
87 Build an rpmsg client sample driver, which demonstrates how
88 to communicate with an AMP-configured remote processor over
91 config SAMPLE_LIVEPATCH
92 tristate "Build live patching samples -- loadable modules only"
93 depends on LIVEPATCH && m
95 Build sample live patch demonstrations.
97 config SAMPLE_CONFIGFS
98 tristate "Build configfs patching sample -- loadable modules only"
99 depends on CONFIGFS_FS && m
101 Builds a sample configfs interface.
103 config SAMPLE_CONNECTOR
104 tristate "Build connector sample -- loadable modules only"
105 depends on CONNECTOR && HEADERS_INSTALL && m
107 When enabled, this builds both a sample kernel module for
108 the connector interface and a user space tool to communicate
110 See also Documentation/driver-api/connector.rst
114 depends on HEADERS_INSTALL
118 depends on HEADERS_INSTALL
120 config SAMPLE_SECCOMP
121 bool "Build seccomp sample code"
122 depends on SECCOMP_FILTER && HEADERS_INSTALL
124 Build samples of seccomp filters using various methods of
125 BPF filter construction.
127 config SAMPLE_VFIO_MDEV_MTTY
128 tristate "Build VFIO mtty example mediated device sample code -- loadable modules only"
129 depends on VFIO_MDEV_DEVICE && m
131 Build a virtual tty sample driver for use as a VFIO
134 config SAMPLE_VFIO_MDEV_MDPY
135 tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
136 depends on VFIO_MDEV_DEVICE && m
138 Build a virtual display sample driver for use as a VFIO
139 mediated device. It is a simple framebuffer and supports
140 the region display interface (VFIO_GFX_PLANE_TYPE_REGION).
142 config SAMPLE_VFIO_MDEV_MDPY_FB
143 tristate "Build VFIO mdpy example guest fbdev driver -- loadable module only"
145 select FB_CFB_FILLRECT
146 select FB_CFB_COPYAREA
147 select FB_CFB_IMAGEBLIT
149 Guest fbdev driver for the virtual display sample driver.
151 config SAMPLE_VFIO_MDEV_MBOCHS
152 tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
153 depends on VFIO_MDEV_DEVICE && m
154 select DMA_SHARED_BUFFER
156 Build a virtual display sample driver for use as a VFIO
157 mediated device. It supports the region display interface
158 (VFIO_GFX_PLANE_TYPE_DMABUF).
159 Emulate enough of qemu stdvga to make bochs-drm.ko happy.
160 That is basically the vram memory bar and the bochs dispi
161 interface vbe registers in the mmio register bar.
162 Specifically it does *not* include any legacy vga stuff.
163 Device looks a lot like "qemu -device secondary-vga".
165 config SAMPLE_ANDROID_BINDERFS
166 bool "Build Android binderfs example"
167 depends on CONFIG_ANDROID_BINDERFS
169 Builds a sample program to illustrate the use of the Android binderfs
173 bool "Build example programs that use new VFS system calls"
174 depends on HEADERS_INSTALL
176 Build example userspace programs that use new VFS system calls such
177 as mount API and statx(). Note that this is restricted to the x86
178 arch whilst it accesses system calls that aren't yet in all arches.