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samples: guard sub-directories with CONFIG options Do not descend to sub-directories when unneeded. I used subdir-$(CONFIG_...) for hidraw, seccomp, and vfs because they only contain host programs. While we are here, let's add SPDX License tag, and sort the directories alphabetically. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-09 01:00:19 +00:00
# SPDX-License-Identifier: GPL-2.0
Linux Kernel Markers - Samples Module example showing how to use the Linux Kernel Markers. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 06:41:08 +00:00
# Makefile for Linux samples code
samples: auxdisplay: use 'userprogs' syntax Kbuild now supports the 'userprogs' syntax to compile userspace programs for the same architecture as the kernel. Add the entry to samples/Makefile to put this into the build bot coverage. I also added the CONFIG option guarded by 'depends on CC_CAN_LINK' because $(CC) may not provide libc. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> Acked-by: Sam Ravnborg <sam@ravnborg.org>
2020-04-29 03:45:25 +00:00
subdir-$(CONFIG_SAMPLE_AUXDISPLAY) += auxdisplay
samples: guard sub-directories with CONFIG options Do not descend to sub-directories when unneeded. I used subdir-$(CONFIG_...) for hidraw, seccomp, and vfs because they only contain host programs. While we are here, let's add SPDX License tag, and sort the directories alphabetically. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-09 01:00:19 +00:00
obj-$(CONFIG_SAMPLE_ANDROID_BINDERFS) += binderfs/
obj-$(CONFIG_SAMPLE_CONFIGFS) += configfs/
obj-$(CONFIG_SAMPLE_CONNECTOR) += connector/
kbuild: add CONFIG_HEADERS_INSTALL and loosen the dependency of samples Commit 5318321d367c ("samples: disable CONFIG_SAMPLES for UML") used a big hammer to fix the build errors under the samples/ directory. Only some samples actually include uapi headers from usr/include. Introduce CONFIG_HEADERS_INSTALL since 'depends on HEADERS_INSTALL' is clearer than 'depends on !UML'. If this option is enabled, uapi headers are installed before starting directory descending. I added 'depends on HEADERS_INSTALL' to per-sample CONFIG options. This allows UML to compile some samples. $ make ARCH=um allmodconfig samples/ [ snip ] CC [M] samples/configfs/configfs_sample.o CC [M] samples/kfifo/bytestream-example.o CC [M] samples/kfifo/dma-example.o CC [M] samples/kfifo/inttype-example.o CC [M] samples/kfifo/record-example.o CC [M] samples/kobject/kobject-example.o CC [M] samples/kobject/kset-example.o CC [M] samples/trace_events/trace-events-sample.o CC [M] samples/trace_printk/trace-printk.o AR samples/vfio-mdev/built-in.a AR samples/built-in.a Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-06-04 10:13:59 +00:00
subdir-$(CONFIG_SAMPLE_HIDRAW) += hidraw
samples: guard sub-directories with CONFIG options Do not descend to sub-directories when unneeded. I used subdir-$(CONFIG_...) for hidraw, seccomp, and vfs because they only contain host programs. While we are here, let's add SPDX License tag, and sort the directories alphabetically. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-09 01:00:19 +00:00
obj-$(CONFIG_SAMPLE_HW_BREAKPOINT) += hw_breakpoint/
obj-$(CONFIG_SAMPLE_KDB) += kdb/
obj-$(CONFIG_SAMPLE_KFIFO) += kfifo/
obj-$(CONFIG_SAMPLE_KOBJECT) += kobject/
obj-$(CONFIG_SAMPLE_KPROBES) += kprobes/
obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch/
kbuild: add CONFIG_HEADERS_INSTALL and loosen the dependency of samples Commit 5318321d367c ("samples: disable CONFIG_SAMPLES for UML") used a big hammer to fix the build errors under the samples/ directory. Only some samples actually include uapi headers from usr/include. Introduce CONFIG_HEADERS_INSTALL since 'depends on HEADERS_INSTALL' is clearer than 'depends on !UML'. If this option is enabled, uapi headers are installed before starting directory descending. I added 'depends on HEADERS_INSTALL' to per-sample CONFIG options. This allows UML to compile some samples. $ make ARCH=um allmodconfig samples/ [ snip ] CC [M] samples/configfs/configfs_sample.o CC [M] samples/kfifo/bytestream-example.o CC [M] samples/kfifo/dma-example.o CC [M] samples/kfifo/inttype-example.o CC [M] samples/kfifo/record-example.o CC [M] samples/kobject/kobject-example.o CC [M] samples/kobject/kset-example.o CC [M] samples/trace_events/trace-events-sample.o CC [M] samples/trace_printk/trace-printk.o AR samples/vfio-mdev/built-in.a AR samples/built-in.a Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-06-04 10:13:59 +00:00
subdir-$(CONFIG_SAMPLE_PIDFD) += pidfd
samples: guard sub-directories with CONFIG options Do not descend to sub-directories when unneeded. I used subdir-$(CONFIG_...) for hidraw, seccomp, and vfs because they only contain host programs. While we are here, let's add SPDX License tag, and sort the directories alphabetically. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-09 01:00:19 +00:00
obj-$(CONFIG_SAMPLE_QMI_CLIENT) += qmi/
obj-$(CONFIG_SAMPLE_RPMSG_CLIENT) += rpmsg/
subdir-$(CONFIG_SAMPLE_SECCOMP) += seccomp
samples: timers: use 'userprogs' syntax Kbuild now supports the 'userprogs' syntax to compile userspace programs for the same architecture as the kernel. Add the entry to samples/Makefile to put this into the build bot coverage. I also added the CONFIG option guarded by 'depends on CC_CAN_LINK' because $(CC) may not provide libc. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Sam Ravnborg <sam@ravnborg.org>
2020-04-29 03:45:26 +00:00
subdir-$(CONFIG_SAMPLE_TIMER) += timers
samples: guard sub-directories with CONFIG options Do not descend to sub-directories when unneeded. I used subdir-$(CONFIG_...) for hidraw, seccomp, and vfs because they only contain host programs. While we are here, let's add SPDX License tag, and sort the directories alphabetically. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-09 01:00:19 +00:00
obj-$(CONFIG_SAMPLE_TRACE_EVENTS) += trace_events/
obj-$(CONFIG_SAMPLE_TRACE_PRINTK) += trace_printk/
ftrace: Add sample module that uses register_ftrace_direct() Add a sample module that shows a simple use case for regsiter_ftrace_direct(), and how to use it. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-11-08 18:12:33 +00:00
obj-$(CONFIG_SAMPLE_FTRACE_DIRECT) += ftrace/
tracing: Sample module to demonstrate kernel access to Ftrace instances. This is a sample module to demonstrate the use of the newly introduced and exported APIs to access Ftrace instances from within the kernel. Newly introduced APIs used here - 1. Create/Lookup a trace array with the given name. struct trace_array *trace_array_get_by_name(const char *name) 2. Destroy/Remove a trace array. int trace_array_destroy(struct trace_array *tr) 4. Enable/Disable trace events: int trace_array_set_clr_event(struct trace_array *tr, const char *system, const char *event, bool enable); Exported APIs - 1. trace_printk equivalent for instances. int trace_array_printk(struct trace_array *tr, unsigned long ip, const char *fmt, ...); 2. Helper function. void trace_printk_init_buffers(void); 3. To decrement the reference counter. void trace_array_put(struct trace_array *tr) Sample output(contents of /sys/kernel/tracing/instances/sample-instance) NOTE: Tracing disabled after ~5 sec) _-----=> irqs-off / _----=> need-resched | / _---=> hardirq/softirq || / _--=> preempt-depth ||| / delay TASK-PID CPU# |||| TIMESTAMP FUNCTION | | | |||| | | sample-instance-1452 [002] .... 49.430948: simple_thread: trace_array_printk: count=0 sample-instance-1452 [002] .... 49.430951: sample_event: count value=0 at jiffies=4294716608 sample-instance-1452 [002] .... 50.454847: simple_thread: trace_array_printk: count=1 sample-instance-1452 [002] .... 50.454849: sample_event: count value=1 at jiffies=4294717632 sample-instance-1452 [002] .... 51.478748: simple_thread: trace_array_printk: count=2 sample-instance-1452 [002] .... 51.478750: sample_event: count value=2 at jiffies=4294718656 sample-instance-1452 [002] .... 52.502652: simple_thread: trace_array_printk: count=3 sample-instance-1452 [002] .... 52.502655: sample_event: count value=3 at jiffies=4294719680 sample-instance-1452 [002] .... 53.526533: simple_thread: trace_array_printk: count=4 sample-instance-1452 [002] .... 53.526535: sample_event: count value=4 at jiffies=4294720704 sample-instance-1452 [002] .... 54.550438: simple_thread: trace_array_printk: count=5 sample-instance-1452 [002] .... 55.574336: simple_thread: trace_array_printk: count=6 Link: http://lkml.kernel.org/r/1574276919-11119-3-git-send-email-divya.indi@oracle.com Reviewed-by: Aruna Ramakrishna <aruna.ramakrishna@oracle.com> Signed-off-by: Divya Indi <divya.indi@oracle.com> [ Moved to samples/ftrace ] Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-11-20 19:08:39 +00:00
obj-$(CONFIG_SAMPLE_TRACE_ARRAY) += ftrace/
samples: uhid: build sample program for target architecture This userspace program includes UAPI headers exported to usr/include/. 'make headers' always works for the target architecture (i.e. the same architecture as the kernel), so the sample program should be built for the target as well. Kbuild now supports 'userprogs' for that. Add the entry to samples/Makefile to put this into the build bot coverage. I also added the CONFIG option guarded by 'depends on CC_CAN_LINK' because $(CC) may not provide libc. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Sam Ravnborg <sam@ravnborg.org>
2020-04-29 03:45:19 +00:00
subdir-$(CONFIG_SAMPLE_UHID) += uhid
samples: guard sub-directories with CONFIG options Do not descend to sub-directories when unneeded. I used subdir-$(CONFIG_...) for hidraw, seccomp, and vfs because they only contain host programs. While we are here, let's add SPDX License tag, and sort the directories alphabetically. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-09 01:00:19 +00:00
obj-$(CONFIG_VIDEO_PCI_SKELETON) += v4l/
obj-y += vfio-mdev/
subdir-$(CONFIG_SAMPLE_VFS) += vfs
samples: mei: use hostprogs kbuild constructs Use hostprogs kbuild constructs to compile mei sample program mei-amt-version Add CONFIG_SAMPLE_INTEL_MEI option to enable/disable the feature. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20191010132710.4075-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-10 13:27:10 +00:00
obj-$(CONFIG_SAMPLE_INTEL_MEI) += mei/
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