From 5136bb8c8b5872676f397b27f93a30568baf3a25 Mon Sep 17 00:00:00 2001 From: Lukas Bulwahn Date: Sat, 19 Dec 2020 17:24:56 +0100 Subject: [PATCH 1/6] MAINTAINERS: adjust GCC PLUGINS after gcc-plugin.sh removal Commit 1e860048c53e ("gcc-plugins: simplify GCC plugin-dev capability test") removed ./scripts/gcc-plugin.sh, but missed to adjust MAINTAINERS. Hence, ./scripts/get_maintainers.pl --self-test=patterns warns: warning: no file matches F: scripts/gcc-plugin.sh Adjust entries in GGC PLUGINS section after this file removal. Signed-off-by: Lukas Bulwahn Signed-off-by: Masahiro Yamada --- MAINTAINERS | 1 - 1 file changed, 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 6eff4f720c72..181c32c18aaf 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7363,7 +7363,6 @@ L: linux-hardening@vger.kernel.org S: Maintained F: Documentation/kbuild/gcc-plugins.rst F: scripts/Makefile.gcc-plugins -F: scripts/gcc-plugin.sh F: scripts/gcc-plugins/ GCOV BASED KERNEL PROFILING From d39648eb67ac851c7918c794424c266a5d2635b9 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sat, 19 Dec 2020 09:08:05 -0800 Subject: [PATCH 2/6] kconfig: config script: add a little user help Give the user a clue about the problem along with the 35 lines of usage/help text. Signed-off-by: Randy Dunlap Cc: Andi Kleen Cc: Masahiro Yamada Cc: linux-kbuild@vger.kernel.org Signed-off-by: Masahiro Yamada --- scripts/config | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/config b/scripts/config index 8c8d7c3d7acc..ff88e2faefd3 100755 --- a/scripts/config +++ b/scripts/config @@ -223,6 +223,7 @@ while [ "$1" != "" ] ; do ;; *) + echo "bad command: $CMD" >&2 usage ;; esac From c0f975af1745391749e4306aa8081b9a4d2cced8 Mon Sep 17 00:00:00 2001 From: John Millikin Date: Wed, 23 Dec 2020 14:04:23 +0900 Subject: [PATCH 3/6] kconfig: Support building mconf with vendor sysroot ncurses Changes the final fallback path in the ncurses locator for mconf to support host compilers with a non-default sysroot. This is similar to the hardcoded search for ncurses under '/usr/include', but can support compilers that keep their default header and library directories elsewhere. For nconfig, do nothing because the only vendor compiler I'm aware of with this layout (Apple Clang) ships an ncurses version that's too old for nconfig anyway. Signed-off-by: John Millikin Signed-off-by: Masahiro Yamada --- scripts/kconfig/mconf-cfg.sh | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/scripts/kconfig/mconf-cfg.sh b/scripts/kconfig/mconf-cfg.sh index aa68ec95620d..fcd4acd4e9cb 100755 --- a/scripts/kconfig/mconf-cfg.sh +++ b/scripts/kconfig/mconf-cfg.sh @@ -33,7 +33,9 @@ if [ -f /usr/include/ncurses/ncurses.h ]; then exit 0 fi -if [ -f /usr/include/ncurses.h ]; then +# As a final fallback before giving up, check if $HOSTCC knows of a default +# ncurses installation (e.g. from a vendor-specific sysroot). +if echo '#include ' | "${HOSTCC}" -E - >/dev/null 2>&1; then echo cflags=\"-D_GNU_SOURCE\" echo libs=\"-lncurses\" exit 0 From 0c36d88cff4d72149f94809303c5180b6f716d39 Mon Sep 17 00:00:00 2001 From: John Millikin Date: Wed, 23 Dec 2020 15:23:25 +0900 Subject: [PATCH 4/6] lib/raid6: Let $(UNROLL) rules work with macOS userland Older versions of BSD awk are fussy about the order of '-v' and '-f' flags, and require a space after the flag name. This causes build failures on platforms with an old awk, such as macOS and NetBSD. Since GNU awk and modern versions of BSD awk (distributed with FreeBSD/OpenBSD) are fine with either form, the definition of 'cmd_unroll' can be trivially tweaked to let the lib/raid6 Makefile work with both old and new awk flag dialects. Signed-off-by: John Millikin Signed-off-by: Masahiro Yamada --- lib/raid6/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile index b4c0df6d706d..c770570bfe4f 100644 --- a/lib/raid6/Makefile +++ b/lib/raid6/Makefile @@ -48,7 +48,7 @@ endif endif quiet_cmd_unroll = UNROLL $@ - cmd_unroll = $(AWK) -f$(srctree)/$(src)/unroll.awk -vN=$* < $< > $@ + cmd_unroll = $(AWK) -v N=$* -f $(srctree)/$(src)/unroll.awk < $< > $@ targets += int1.c int2.c int4.c int8.c int16.c int32.c $(obj)/int%.c: $(src)/int.uc $(src)/unroll.awk FORCE From 9bba03d4473df0b707224d4d2067b62d1e1e2a77 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Wed, 23 Dec 2020 15:35:42 +0900 Subject: [PATCH 5/6] kconfig: remove 'kvmconfig' and 'xenconfig' shorthands Linux 5.10 is out. Remove the 'kvmconfig' and 'xenconfig' shorthands as previously announced. Signed-off-by: Masahiro Yamada --- scripts/kconfig/Makefile | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile index e46df0a2d4f9..2c40e68853dd 100644 --- a/scripts/kconfig/Makefile +++ b/scripts/kconfig/Makefile @@ -94,16 +94,6 @@ configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/c $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m .config $(configfiles) $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig -PHONY += kvmconfig -kvmconfig: kvm_guest.config - @echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10" - @echo >&2 " Please use 'make $<' instead." - -PHONY += xenconfig -xenconfig: xen.config - @echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10" - @echo >&2 " Please use 'make $<' instead." - PHONY += tinyconfig tinyconfig: $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config From 5625dcfbbcf892e40e8d60abbb5f56701a1d031c Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 7 Jan 2021 17:12:08 +0530 Subject: [PATCH 6/6] Documentation: kbuild: Fix section reference Section 3.11 was incorrectly called 3.9, fix it. Signed-off-by: Viresh Kumar Signed-off-by: Masahiro Yamada --- Documentation/kbuild/makefiles.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst index d36768cf1250..9f6a11881951 100644 --- a/Documentation/kbuild/makefiles.rst +++ b/Documentation/kbuild/makefiles.rst @@ -598,7 +598,7 @@ more details, with real examples. explicitly added to $(targets). Assignments to $(targets) are without $(obj)/ prefix. if_changed may be - used in conjunction with custom rules as defined in "3.9 Custom Rules". + used in conjunction with custom rules as defined in "3.11 Custom Rules". Note: It is a typical mistake to forget the FORCE prerequisite. Another common pitfall is that whitespace is sometimes significant; for