Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.6.131 2022-10-10T19:00:45+00:00 2022-10-10T19:00:45+00:00 Linus Torvalds torvalds@linux-foundation.org 2022-10-10T19:00:45+00:00 urn:sha1:8afc66e8d43be8edcf442165b70d50dd33091e68 Pull Kbuild updates from Masahiro Yamada: - Remove potentially incomplete targets when Kbuid is interrupted by SIGINT etc in case GNU Make may miss to do that when stderr is piped to another program. - Rewrite the single target build so it works more correctly. - Fix rpm-pkg builds with V=1. - List top-level subdirectories in ./Kbuild. - Ignore auto-generated __kstrtab_* and __kstrtabns_* symbols in kallsyms. - Avoid two different modules in lib/zstd/ having shared code, which potentially causes building the common code as build-in and modular back-and-forth. - Unify two modpost invocations to optimize the build process. - Remove head-y syntax in favor of linker scripts for placing particular sections in the head of vmlinux. - Bump the minimal GNU Make version to 3.82. - Clean up misc Makefiles and scripts. * tag 'kbuild-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (41 commits) docs: bump minimal GNU Make version to 3.82 ia64: simplify esi object addition in Makefile Revert "kbuild: Check if linker supports the -X option" kbuild: rebuild .vmlinux.export.o when its prerequisite is updated kbuild: move modules.builtin(.modinfo) rules to Makefile.vmlinux_o zstd: Fixing mixed module-builtin objects kallsyms: ignore __kstrtab_* and __kstrtabns_* symbols kallsyms: take the input file instead of reading stdin kallsyms: drop duplicated ignore patterns from kallsyms.c kbuild: reuse mksysmap output for kallsyms mksysmap: update comment about __crc_* kbuild: remove head-y syntax kbuild: use obj-y instead extra-y for objects placed at the head kbuild: hide error checker logs for V=1 builds kbuild: re-run modpost when it is updated kbuild: unify two modpost invocations kbuild: move vmlinux.o rule to the top Makefile kbuild: move .vmlinux.objs rule to Makefile.modpost kbuild: list sub-directories in ./Kbuild Makefile.compiler: replace cc-ifversion with compiler-specific macros ... 2022-09-28T19:41:31+00:00 Masahiro Yamada masahiroy@kernel.org 2022-09-24T18:19:10+00:00 urn:sha1:5750121ae7382ebac8d47ce6d68012d6cd1d7926 Use the ordinary obj-y syntax to list subdirectories. Note1: Previously, the link order of lib-y depended on CONFIG_MODULES; lib-y was linked before drivers-y when CONFIG_MODULES=y, otherwise after drivers-y. This was a bug of commit 7273ad2b08f8 ("kbuild: link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y"), but it was not a big deal after all. Now, all objects listed in lib-y are linked last, irrespective of CONFIG_MODULES. Note2: Finally, the single target build in arch/*/lib/ works correctly. There was a bug report about this. [1] $ make ARCH=arm arch/arm/lib/findbit.o CALL scripts/checksyscalls.sh AS arch/arm/lib/findbit.o [1]: https://lore.kernel.org/linux-kbuild/YvUQOwL6lD4%2F5%2FU6@shell.armlinux.org.uk/ Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Nicolas Schier <nicolas@fjasle.eu> 2022-09-28T19:40:14+00:00 Masahiro Yamada masahiroy@kernel.org 2022-08-20T09:15:29+00:00 urn:sha1:b10fdeea8cf42c0d97b337e9e501c92da4389a03 It is unneeded to check the sha1sum every time. Create the timestamp files to manage it. Add '.' to clean-dirs because 'make clean' must visit ./Kbuild to clean up the timestamp files. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> 2022-09-28T17:00:29+00:00 Masahiro Yamada masahiroy@kernel.org 2022-08-20T09:15:28+00:00 urn:sha1:ed7ceac157c27bdc64e79a3229f5ab6e8899597f missing-syscalls and old-atomics are meant to be phony targets. Adding them to always-y is odd. (always-y should generate something). Add a new phony target 'prepare', which depends on all the other. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> 2020-02-03T16:53:07+00:00 Masahiro Yamada masahiroy@kernel.org 2020-02-01T16:49:24+00:00 urn:sha1:5f2fb52fac15a8a8e10ce020dd532504a8abfc4e In old days, the "host-progs" syntax was used for specifying host programs. It was renamed to the current "hostprogs-y" in 2004. It is typically useful in scripts/Makefile because it allows Kbuild to selectively compile host programs based on the kernel configuration. This commit renames like follows: always -> always-y hostprogs-y -> hostprogs So, 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 host program, irrespective of the kernel configuration. We want to specify which ones to compile by CONFIG options, so always-y will be handier. The "always", "hostprogs-y", "hostprogs-m" will be kept for backward compatibility for a while. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> 2019-08-21T12:03:58+00:00 Masahiro Yamada yamada.masahiro@socionext.com 2019-08-10T15:53:02+00:00 urn:sha1:125d059b624180b2c441181c797e41354bfe0649 'make clean' descends into ./Kbuild, but does not clean anything since everything is added to no-clean-files. There is no need to descend to ./Kbuild in the first place. We can drop the no-clean-files assignment. With this, there is no more user of no-clean-files. I will keep it for a while to see whether a new user will appear. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 2019-08-14T17:25:11+00:00 Masahiro Yamada yamada.masahiro@socionext.com 2019-08-10T15:53:01+00:00 urn:sha1:d082402e2174314e87131771d048925b2245b74c timeconst.h is generated by $(call filechk,...), missing-syscalls and old-atomics are invoked by $(call cmd,...) None of them needs to be added to 'targets'. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 2019-03-11T00:48:21+00:00 Linus Torvalds torvalds@linux-foundation.org 2019-03-11T00:48:21+00:00 urn:sha1:ffd602eb4693bbb49b301fa059b109bbdebf9524 Pull Kbuild updates from Masahiro Yamada: - do not generate unneeded top-level built-in.a - let git ignore O= directory entirely - optimize scripts/kallsyms slightly - exclude DWARF info from *.s regardless of config options - fix GCC toolchain search path for Clang to prepare ld.lld support - do not generate modules.order when CONFIG_MODULES is disabled - simplify single target rules and remove VPATH for external module build - allow to add optional flags to dpkg-buildpackage when building deb-pkg - move some compiler option tests from Makefile to Kconfig - various Makefile cleanups * tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (40 commits) kbuild: remove scripts/basic/% build target kbuild: use -Werror=implicit-... instead of -Werror-implicit-... kbuild: clean up scripts/gcc-version.sh kbuild: remove cc-version macro kbuild: update comment block of scripts/clang-version.sh kbuild: remove commented-out INITRD_COMPRESS kbuild: move -gsplit-dwarf, -gdwarf-4 option tests to Kconfig kbuild: [bin]deb-pkg: add DPKG_FLAGS variable kbuild: move ".config not found!" message from Kconfig to Makefile kbuild: invoke syncconfig if include/config/auto.conf.cmd is missing kbuild: simplify single target rules kbuild: remove empty rules for makefiles kbuild: make -r/-R effective in top Makefile for old Make versions kbuild: move tools_silent to a more relevant place kbuild: compute false-positive -Wmaybe-uninitialized cases in Kconfig kbuild: refactor cc-cross-prefix implementation kbuild: hardcode genksyms path and remove GENKSYMS variable scripts/gdb: refactor rules for symlink creation kbuild: create symlink to vmlinux-gdb.py in scripts_gdb target scripts/gdb: do not descend into scripts/gdb from scripts ... 2019-02-27T12:40:01+00:00 Masahiro Yamada yamada.masahiro@socionext.com 2019-02-19T09:33:03+00:00 urn:sha1:01d509a48b467fa6e03d4af43b84bce835af4cef Every time we add/remove a target, we need to touch the header part, including renumbering. This is not so important information. Numbering targets is rather misleading because they are not necessarily generated in this order. For example, 1) and 2) can be executed simultaneously when the -j option is given. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> 2019-02-27T12:39:48+00:00 Masahiro Yamada yamada.masahiro@socionext.com 2019-02-19T09:33:02+00:00 urn:sha1:67274c083438340ad16c1437caebc84e1253b224 scripts/gdb/linux/constants.py is never used in the kernel build process. There is no good reason to create it so early. Get it out of the 'prepare' stage. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>