Changes in Makefile

faabed29 - kbuild: introduce hostprogs-always-y and userprogs-always-y

Sat, 01 Aug 2020 12:27:18 +0000

kbuild: introduce hostprogs-always-y and userprogs-always-yTo build host programs, you need to add the program names to 'hostprogs'to use the necessary build rule, but it is not enough to build thembecause there is no dependency.There are two types of host programs: built as the prerequisite ofanother (e.g. gen_crc32table in lib/Makefile), or always built whenKbuild visits the Makefile (e.g. genksyms in scripts/genksyms/Makefile).The latter is typical in Makefiles under scripts/, which contains hostprograms globally used during the kernel build. To build them, you needto add them to both 'hostprogs' and 'always-y'.This commit adds hostprogs-always-y as a shorthand.The same applies to user programs. net/bpfilter/Makefile buildsbpfilter_umh on demand, hence always-y is unneeded. In contrast,programs under samples/ are added to both 'userprogs' and 'always-y'so they are always built when Kbuild visits the Makefiles.userprogs-always-y works as a shorthand.Signed-off-by: Masahiro Yamada Acked-by: Miguel Ojeda List of files: /linux-6.15/samples/uhid/Makefile

87ecdf4f - samples: uhid: build sample program for target architecture

Wed, 29 Apr 2020 03:45:19 +0000

samples: uhid: build sample program for target architectureThis userspace program includes UAPI headers exported to usr/include/.'make headers' always works for the target architecture (i.e. the samearchitecture as the kernel), so the sample program should be built forthe target as well. Kbuild now supports 'userprogs' for that.Add the entry to samples/Makefile to put this into the build botcoverage.I also added the CONFIG option guarded by 'depends on CC_CAN_LINK'because $(CC) may not provide libc.Signed-off-by: Masahiro Yamada Acked-by: Sam Ravnborg List of files: /linux-6.15/samples/uhid/Makefile

5f2fb52f - kbuild: rename hostprogs-y/always to hostprogs/always-y

Sat, 01 Feb 2020 16:49:24 +0000

kbuild: rename hostprogs-y/always to hostprogs/always-yIn old days, the "host-progs" syntax was used for specifying hostprograms. It was renamed to the current "hostprogs-y" in 2004.It is typically useful in scripts/Makefile because it allows Kbuild toselectively compile host programs based on the kernel configuration.This commit renames like follows: always -> always-y hostprogs-y -> hostprogsSo, scripts/Makefile will look like this: always-$(CONFIG_BUILD_BIN2C) += ... always-$(CONFIG_KALLSYMS) += ... ... hostprogs := $(always-y) $(always-m)I think this makes more sense because a host program is always a hostprogram, irrespective of the kernel configuration. We want to specifywhich ones to compile by CONFIG options, so always-y will be handier.The "always", "hostprogs-y", "hostprogs-m" will be kept for backwardcompatibility for a while.Signed-off-by: Masahiro Yamada List of files: /linux-6.15/samples/uhid/Makefile

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/samples/uhid/Makefile

bf070bb0 - kbuild: remove all dummy assignments to obj-

Tue, 07 Nov 2017 16:31:47 +0000

kbuild: remove all dummy assignments to obj-Now kbuild core scripts create empty built-in.o where necessary.Remove "obj- := dummy.o" tricks.Signed-off-by: Masahiro Yamada List of files: /linux-6.15/samples/uhid/Makefile

5148fa52 - HID: uhid: add example program

Sun, 10 Jun 2012 13:16:27 +0000

HID: uhid: add example programThis adds an example user-space program that emulates a 3 button mousewith wheel. It detects keyboard presses and moves the mouse accordingly.It register a fake HID device to feed the raw HID reports into the kernel.In this example, you could use uinput to get the same result, but thisshows how to get the same behavior with uhid so you don't need HID parsersin user-space.Signed-off-by: David Herrmann Signed-off-by: Jiri Kosina List of files: /linux-6.15/samples/uhid/Makefile