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 HAVE_SAMPLE_FTRACE_DIRECT 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_FANOTIFY_ERROR 124 bool "Build fanotify error monitoring sample" 125 depends on FANOTIFY && CC_CAN_LINK && HEADERS_INSTALL 126 help 127 When enabled, this builds an example code that uses the 128 FAN_FS_ERROR fanotify mechanism to monitor filesystem 129 errors. 130 See also Documentation/admin-guide/filesystem-monitoring.rst. 131 132config SAMPLE_HIDRAW 133 bool "hidraw sample" 134 depends on CC_CAN_LINK && HEADERS_INSTALL 135 136config SAMPLE_LANDLOCK 137 bool "Landlock example" 138 depends on CC_CAN_LINK && HEADERS_INSTALL 139 help 140 Build a simple Landlock sandbox manager able to start a process 141 restricted by a user-defined filesystem access control policy. 142 143config SAMPLE_PIDFD 144 bool "pidfd sample" 145 depends on CC_CAN_LINK && HEADERS_INSTALL 146 147config SAMPLE_SECCOMP 148 bool "Build seccomp sample code" 149 depends on SECCOMP_FILTER && CC_CAN_LINK && HEADERS_INSTALL 150 help 151 Build samples of seccomp filters using various methods of 152 BPF filter construction. 153 154config SAMPLE_TIMER 155 bool "Timer sample" 156 depends on CC_CAN_LINK && HEADERS_INSTALL 157 158config SAMPLE_UHID 159 bool "UHID sample" 160 depends on CC_CAN_LINK && HEADERS_INSTALL 161 help 162 Build UHID sample program. 163 164config SAMPLE_VFIO_MDEV_MTTY 165 tristate "Build VFIO mtty example mediated device sample code -- loadable modules only" 166 depends on VFIO_MDEV && m 167 help 168 Build a virtual tty sample driver for use as a VFIO 169 mediated device 170 171config SAMPLE_VFIO_MDEV_MDPY 172 tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only" 173 depends on VFIO_MDEV && m 174 help 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). 178 179config SAMPLE_VFIO_MDEV_MDPY_FB 180 tristate "Build VFIO mdpy example guest fbdev driver -- loadable module only" 181 depends on FB && m 182 select FB_CFB_FILLRECT 183 select FB_CFB_COPYAREA 184 select FB_CFB_IMAGEBLIT 185 help 186 Guest fbdev driver for the virtual display sample driver. 187 188config 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 192 help 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". 201 202config SAMPLE_ANDROID_BINDERFS 203 bool "Build Android binderfs example" 204 depends on CC_CAN_LINK && HEADERS_INSTALL 205 help 206 Builds a sample program to illustrate the use of the Android binderfs 207 filesystem. 208 209config SAMPLE_VFS 210 bool "Build example programs that use new VFS system calls" 211 depends on CC_CAN_LINK && HEADERS_INSTALL 212 help 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. 216 217config SAMPLE_INTEL_MEI 218 bool "Build example program working with intel mei driver" 219 depends on INTEL_MEI 220 depends on CC_CAN_LINK && HEADERS_INSTALL 221 help 222 Build a sample program to work with mei device. 223 224config SAMPLE_WATCHDOG 225 bool "watchdog sample" 226 depends on CC_CAN_LINK 227 228config SAMPLE_WATCH_QUEUE 229 bool "Build example watch_queue notification API consumer" 230 depends on CC_CAN_LINK && HEADERS_INSTALL 231 help 232 Build example userspace program to use the new mount_notify(), 233 sb_notify() syscalls and the KEYCTL_WATCH_KEY keyctl() function. 234 235endif # SAMPLES 236 237config HAVE_SAMPLE_FTRACE_DIRECT 238 bool 239 240config HAVE_SAMPLE_FTRACE_MULTI_DIRECT 241 bool 242