1# SPDX-License-Identifier: GPL-2.0-only 2menuconfig SAMPLES 3 bool "Sample kernel code" 4 help 5 You can build and test sample kernel code here. 6 7if SAMPLES 8 9config SAMPLE_AUXDISPLAY 10 bool "auxdisplay sample" 11 depends on CC_CAN_LINK 12 13config SAMPLE_TRACE_EVENTS 14 tristate "Build trace_events examples -- loadable modules only" 15 depends on EVENT_TRACING && m 16 help 17 This build trace event example modules. 18 19config SAMPLE_TRACE_PRINTK 20 tristate "Build trace_printk module - tests various trace_printk formats" 21 depends on EVENT_TRACING && m 22 help 23 This builds a module that calls trace_printk() and can be used to 24 test various trace_printk() calls from a module. 25 26config 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 30 help 31 This builds an ftrace direct function example 32 that hooks to wake_up_process and prints the parameters. 33 34config SAMPLE_TRACE_ARRAY 35 tristate "Build sample module for kernel access to Ftrace instancess" 36 depends on EVENT_TRACING && m 37 help 38 This builds a module that demonstrates the use of various APIs to 39 access Ftrace instances from within the kernel. 40 41config SAMPLE_KOBJECT 42 tristate "Build kobject examples" 43 help 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. 47 48 If in doubt, say "N" here. 49 50config SAMPLE_KPROBES 51 tristate "Build kprobes examples -- loadable modules only" 52 depends on KPROBES && m 53 help 54 This build several kprobes example modules. 55 56config SAMPLE_KRETPROBES 57 tristate "Build kretprobes example -- loadable modules only" 58 default m 59 depends on SAMPLE_KPROBES && KRETPROBES 60 61config SAMPLE_HW_BREAKPOINT 62 tristate "Build kernel hardware breakpoint examples -- loadable module only" 63 depends on HAVE_HW_BREAKPOINT && m 64 help 65 This builds kernel hardware breakpoint example modules. 66 67config SAMPLE_KFIFO 68 tristate "Build kfifo examples -- loadable modules only" 69 depends on m 70 help 71 This config option will allow you to build a number of 72 different kfifo sample modules showing how to use the 73 generic kfifo API. 74 75 If in doubt, say "N" here. 76 77config SAMPLE_KDB 78 tristate "Build kdb command example -- loadable modules only" 79 depends on KGDB_KDB && m 80 help 81 Build an example of how to dynamically add the hello 82 command to the kdb shell. 83 84config SAMPLE_QMI_CLIENT 85 tristate "Build qmi client sample -- loadable modules only" 86 depends on m 87 depends on ARCH_QCOM 88 depends on NET 89 select QCOM_QMI_HELPERS 90 help 91 Build an QMI client sample driver, which demonstrates how to 92 communicate with a remote QRTR service, using QMI encoded messages. 93 94config SAMPLE_RPMSG_CLIENT 95 tristate "Build rpmsg client sample -- loadable modules only" 96 depends on RPMSG && m 97 help 98 Build an rpmsg client sample driver, which demonstrates how 99 to communicate with an AMP-configured remote processor over 100 the rpmsg bus. 101 102config SAMPLE_LIVEPATCH 103 tristate "Build live patching samples -- loadable modules only" 104 depends on LIVEPATCH && m 105 help 106 Build sample live patch demonstrations. 107 108config SAMPLE_CONFIGFS 109 tristate "Build configfs patching sample -- loadable modules only" 110 depends on CONFIGFS_FS && m 111 help 112 Builds a sample configfs interface. 113 114config SAMPLE_CONNECTOR 115 tristate "Build connector sample -- loadable modules only" 116 depends on CONNECTOR && HEADERS_INSTALL && m 117 help 118 When enabled, this builds both a sample kernel module for 119 the connector interface and a user space tool to communicate 120 with it. 121 See also Documentation/driver-api/connector.rst 122 123config SAMPLE_HIDRAW 124 bool "hidraw sample" 125 depends on CC_CAN_LINK && HEADERS_INSTALL 126 127config SAMPLE_LANDLOCK 128 bool "Landlock example" 129 depends on CC_CAN_LINK && HEADERS_INSTALL 130 help 131 Build a simple Landlock sandbox manager able to start a process 132 restricted by a user-defined filesystem access control policy. 133 134config SAMPLE_PIDFD 135 bool "pidfd sample" 136 depends on CC_CAN_LINK && HEADERS_INSTALL 137 138config SAMPLE_SECCOMP 139 bool "Build seccomp sample code" 140 depends on SECCOMP_FILTER && CC_CAN_LINK && HEADERS_INSTALL 141 help 142 Build samples of seccomp filters using various methods of 143 BPF filter construction. 144 145config SAMPLE_TIMER 146 bool "Timer sample" 147 depends on CC_CAN_LINK && HEADERS_INSTALL 148 149config SAMPLE_UHID 150 bool "UHID sample" 151 depends on CC_CAN_LINK && HEADERS_INSTALL 152 help 153 Build UHID sample program. 154 155config SAMPLE_VFIO_MDEV_MTTY 156 tristate "Build VFIO mtty example mediated device sample code -- loadable modules only" 157 depends on VFIO_MDEV_DEVICE && m 158 help 159 Build a virtual tty sample driver for use as a VFIO 160 mediated device 161 162config SAMPLE_VFIO_MDEV_MDPY 163 tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only" 164 depends on VFIO_MDEV_DEVICE && m 165 help 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). 169 170config SAMPLE_VFIO_MDEV_MDPY_FB 171 tristate "Build VFIO mdpy example guest fbdev driver -- loadable module only" 172 depends on FB && m 173 select FB_CFB_FILLRECT 174 select FB_CFB_COPYAREA 175 select FB_CFB_IMAGEBLIT 176 help 177 Guest fbdev driver for the virtual display sample driver. 178 179config 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 183 help 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". 192 193config SAMPLE_ANDROID_BINDERFS 194 bool "Build Android binderfs example" 195 depends on CC_CAN_LINK && HEADERS_INSTALL 196 help 197 Builds a sample program to illustrate the use of the Android binderfs 198 filesystem. 199 200config SAMPLE_VFS 201 bool "Build example programs that use new VFS system calls" 202 depends on CC_CAN_LINK && HEADERS_INSTALL 203 help 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. 207 208config SAMPLE_INTEL_MEI 209 bool "Build example program working with intel mei driver" 210 depends on INTEL_MEI 211 depends on CC_CAN_LINK && HEADERS_INSTALL 212 help 213 Build a sample program to work with mei device. 214 215config SAMPLE_WATCHDOG 216 bool "watchdog sample" 217 depends on CC_CAN_LINK 218 219config SAMPLE_WATCH_QUEUE 220 bool "Build example watch_queue notification API consumer" 221 depends on CC_CAN_LINK && HEADERS_INSTALL 222 help 223 Build example userspace program to use the new mount_notify(), 224 sb_notify() syscalls and the KEYCTL_WATCH_KEY keyctl() function. 225 226endif # SAMPLES 227