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# SPDX-License-Identifier: GPL-2.0-only menuconfig SAMPLES bool "Sample kernel code" help You can build and test sample kernel code here. if SAMPLES config SAMPLE_AUXDISPLAY bool "auxdisplay sample" depends on CC_CAN_LINK config SAMPLE_TRACE_EVENTS tristate "Build trace_events examples -- loadable modules only" depends on EVENT_TRACING && m help This builds the trace event example module. config SAMPLE_TRACE_CUSTOM_EVENTS tristate "Build custom trace event example -- loadable modules only" depends on EVENT_TRACING && m help This builds the custom trace event example module. config SAMPLE_TRACE_PRINTK tristate "Build trace_printk module - tests various trace_printk formats" depends on EVENT_TRACING && m help This builds a module that calls trace_printk() and can be used to test various trace_printk() calls from a module. config SAMPLE_FTRACE_DIRECT tristate "Build register_ftrace_direct() example" depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m depends on HAVE_SAMPLE_FTRACE_DIRECT help This builds an ftrace direct function example that hooks to wake_up_process and prints the parameters. config SAMPLE_FTRACE_DIRECT_MULTI tristate "Build register_ftrace_direct() on multiple ips example" depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m depends on HAVE_SAMPLE_FTRACE_DIRECT_MULTI help This builds an ftrace direct function example that hooks to wake_up_process and schedule, and prints the function addresses. config SAMPLE_FTRACE_OPS tristate "Build custom ftrace ops example" depends on FUNCTION_TRACER help This builds an ftrace ops example that hooks two functions and measures the time taken to invoke one function a number of times. config SAMPLE_TRACE_ARRAY tristate "Build sample module for kernel access to Ftrace instances" depends on EVENT_TRACING && m help This builds a module that demonstrates the use of various APIs to access Ftrace instances from within the kernel. config SAMPLE_KOBJECT tristate "Build kobject examples" help This config option will allow you to build a number of different kobject sample modules showing how to use kobjects, ksets, and ktypes properly. If in doubt, say "N" here. config SAMPLE_KPROBES tristate "Build kprobes examples -- loadable modules only" depends on KPROBES && m help This build several kprobes example modules. config SAMPLE_KRETPROBES tristate "Build kretprobes example -- loadable modules only" default m depends on SAMPLE_KPROBES && KRETPROBES config SAMPLE_HW_BREAKPOINT tristate "Build kernel hardware breakpoint examples -- loadable module only" depends on HAVE_HW_BREAKPOINT && m help This builds kernel hardware breakpoint example modules. config SAMPLE_FPROBE tristate "Build fprobe examples -- loadable modules only" depends on FPROBE && m help This builds a fprobe example module. This module has an option 'symbol'. You can specify a probed symbol or symbols separated with ','. config SAMPLE_KFIFO tristate "Build kfifo examples -- loadable modules only" depends on m help This config option will allow you to build a number of different kfifo sample modules showing how to use the generic kfifo API. If in doubt, say "N" here. config SAMPLE_KDB tristate "Build kdb command example -- loadable modules only" depends on KGDB_KDB && m help Build an example of how to dynamically add the hello command to the kdb shell. config SAMPLE_QMI_CLIENT tristate "Build qmi client sample -- loadable modules only" depends on m depends on ARCH_QCOM depends on NET select QCOM_QMI_HELPERS help Build an QMI client sample driver, which demonstrates how to communicate with a remote QRTR service, using QMI encoded messages. config SAMPLE_RPMSG_CLIENT tristate "Build rpmsg client sample -- loadable modules only" depends on RPMSG && m help Build an rpmsg client sample driver, which demonstrates how to communicate with an AMP-configured remote processor over the rpmsg bus. config SAMPLE_LIVEPATCH tristate "Build live patching samples -- loadable modules only" depends on LIVEPATCH && m help Build sample live patch demonstrations. config SAMPLE_CONFIGFS tristate "Build configfs patching sample -- loadable modules only" depends on CONFIGFS_FS && m help Builds a sample configfs interface. config SAMPLE_CONNECTOR tristate "Build connector sample -- loadable modules only" depends on CONNECTOR && HEADERS_INSTALL && m help When enabled, this builds both a sample kernel module for the connector interface and a user space tool to communicate with it. See also Documentation/driver-api/connector.rst config SAMPLE_FANOTIFY_ERROR bool "Build fanotify error monitoring sample" depends on FANOTIFY && CC_CAN_LINK && HEADERS_INSTALL help When enabled, this builds an example code that uses the FAN_FS_ERROR fanotify mechanism to monitor filesystem errors. See also Documentation/admin-guide/filesystem-monitoring.rst. config SAMPLE_HIDRAW bool "hidraw sample" depends on CC_CAN_LINK && HEADERS_INSTALL config SAMPLE_LANDLOCK bool "Landlock example" depends on CC_CAN_LINK && HEADERS_INSTALL help Build a simple Landlock sandbox manager able to start a process restricted by a user-defined filesystem access control policy. config SAMPLE_PIDFD bool "pidfd sample" depends on CC_CAN_LINK && HEADERS_INSTALL config SAMPLE_SECCOMP bool "Build seccomp sample code" depends on SECCOMP_FILTER && CC_CAN_LINK && HEADERS_INSTALL help Build samples of seccomp filters using various methods of BPF filter construction. config SAMPLE_TIMER bool "Timer sample" depends on CC_CAN_LINK && HEADERS_INSTALL config SAMPLE_TSM_MR tristate "TSM measurement sample" select TSM_MEASUREMENTS select VIRT_DRIVERS help Build a sample module that emulates MRs (Measurement Registers) and exposes them to user mode applications through the TSM sysfs interface (/sys/class/misc/tsm_mr_sample/emulated_mr/). The module name will be tsm-mr-sample when built as a module. config SAMPLE_UHID bool "UHID sample" depends on CC_CAN_LINK && HEADERS_INSTALL help Build UHID sample program. config SAMPLE_VFIO_MDEV_MTTY tristate "Build VFIO mtty example mediated device sample code" depends on VFIO select VFIO_MDEV help Build a virtual tty sample driver for use as a VFIO mediated device config SAMPLE_VFIO_MDEV_MDPY tristate "Build VFIO mdpy example mediated device sample code" depends on VFIO select VFIO_MDEV help Build a virtual display sample driver for use as a VFIO mediated device. It is a simple framebuffer and supports the region display interface (VFIO_GFX_PLANE_TYPE_REGION). config SAMPLE_VFIO_MDEV_MDPY_FB tristate "Build VFIO mdpy example guest fbdev driver" depends on FB select FB_IOMEM_HELPERS help Guest fbdev driver for the virtual display sample driver. config SAMPLE_VFIO_MDEV_MBOCHS tristate "Build VFIO mbochs example mediated device sample code" depends on VFIO select VFIO_MDEV select DMA_SHARED_BUFFER help Build a virtual display sample driver for use as a VFIO mediated device. It supports the region display interface (VFIO_GFX_PLANE_TYPE_DMABUF). Emulate enough of qemu stdvga to make bochs-drm.ko happy. That is basically the vram memory bar and the bochs dispi interface vbe registers in the mmio register bar. Specifically it does *not* include any legacy vga stuff. Device looks a lot like "qemu -device secondary-vga". config SAMPLE_ANDROID_BINDERFS bool "Build Android binderfs example" depends on CC_CAN_LINK && HEADERS_INSTALL help Builds a sample program to illustrate the use of the Android binderfs filesystem. config SAMPLE_VFS bool "Build example programs that use new VFS system calls" depends on CC_CAN_LINK && HEADERS_INSTALL help Build example userspace programs that use new VFS system calls such as mount API and statx(). Note that this is restricted to the x86 arch whilst it accesses system calls that aren't yet in all arches. config SAMPLE_INTEL_MEI bool "Build example program working with intel mei driver" depends on INTEL_MEI depends on CC_CAN_LINK && HEADERS_INSTALL help Build a sample program to work with mei device. config SAMPLE_TPS6594_PFSM bool "Build example program working with TPS6594 PFSM driver" depends on HEADERS_INSTALL depends on CC_CAN_LINK help Build a sample program to work with PFSM devices. config SAMPLE_WATCHDOG bool "watchdog sample" depends on CC_CAN_LINK config SAMPLE_WATCH_QUEUE bool "Build example watch_queue notification API consumer" depends on CC_CAN_LINK && HEADERS_INSTALL help Build example userspace program to use the new mount_notify(), sb_notify() syscalls and the KEYCTL_WATCH_KEY keyctl() function. config SAMPLE_CORESIGHT_SYSCFG tristate "Build example loadable module for CoreSight config" depends on CORESIGHT && m help Build an example loadable module that adds new CoreSight features and configuration using the CoreSight system configuration API. This demonstrates how a user may create their own CoreSight configurations and easily load them into the system at runtime. config SAMPLE_KMEMLEAK tristate "Simple test for the kernel memory leak detector" depends on DEBUG_KMEMLEAK && m help Build a sample program which have explicitly leaks memory to test kmemleak. config SAMPLE_CGROUP bool "Build cgroup sample code" depends on CGROUPS && CC_CAN_LINK && HEADERS_INSTALL help Build samples that demonstrate the usage of the cgroup API. config SAMPLE_CHECK_EXEC bool "Exec secure bits examples" depends on CC_CAN_LINK && HEADERS_INSTALL help Build a tool to easily configure SECBIT_EXEC_RESTRICT_FILE and SECBIT_EXEC_DENY_INTERACTIVE, and a simple script interpreter to demonstrate how they should be used with execveat(2) + AT_EXECVE_CHECK. config SAMPLE_HUNG_TASK tristate "Hung task detector test code" depends on DETECT_HUNG_TASK && DEBUG_FS help Build a module that provides debugfs files (e.g., mutex, semaphore, rw_semaphore_read, rw_semaphore_write) under <debugfs>/hung_task. Reading these files with multiple processes triggers hung task detection by holding locks for a long time (256 seconds). source "samples/rust/Kconfig" source "samples/damon/Kconfig" endif # SAMPLES config HAVE_SAMPLE_FTRACE_DIRECT bool config HAVE_SAMPLE_FTRACE_DIRECT_MULTI bool