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linux/scripts/basic/Makefile

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treewide: Add SPDX license identifier - Makefile/Kconfig Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-19 20:07:45 +08:00
# SPDX-License-Identifier: GPL-2.0-only
kbuild: remove unneeded comments and code from scripts/basic/Makefile Kbuild descends into scripts/basic/ even before the Kconfig. I do not expect any other host programs added to this Makefile. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-08-22 01:32:47 +08:00
#
# fixdep: used to generate dependency information during build process
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
kbuild: introduce hostprogs-always-y and userprogs-always-y To 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 them because there is no dependency. There are two types of host programs: built as the prerequisite of another (e.g. gen_crc32table in lib/Makefile), or always built when Kbuild visits the Makefile (e.g. genksyms in scripts/genksyms/Makefile). The latter is typical in Makefiles under scripts/, which contains host programs globally used during the kernel build. To build them, you need to 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 builds bpfilter_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 <masahiroy@kernel.org> Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
2020-08-01 20:27:18 +08:00
hostprogs-always-y += fixdep
randstruct: Move seed generation into scripts/basic/ To enable Clang randstruct support, move the structure layout randomization seed generation out of scripts/gcc-plugins/ into scripts/basic/ so it happens early enough that it can be used by either compiler implementation. The gcc-plugin still builds its own header file, but now does so from the common "randstruct.seed" file. Cc: linux-hardening@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220503205503.3054173-6-keescook@chromium.org
2022-05-04 04:55:02 +08:00
# randstruct: the seed is needed before building the gcc-plugin or
# before running a Clang kernel build.
gen-randstruct-seed := $(srctree)/scripts/gen-randstruct-seed.sh
quiet_cmd_create_randstruct_seed = GENSEED $@
cmd_create_randstruct_seed = \
$(CONFIG_SHELL) $(gen-randstruct-seed) \
$@ $(objtree)/include/generated/randstruct_hash.h
$(obj)/randstruct.seed: $(gen-randstruct-seed) FORCE
$(call if_changed,create_randstruct_seed)
always-$(CONFIG_RANDSTRUCT) += randstruct.seed
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