This patch set allows for building the Linux kernel for arm64 in macOS with LLVM. Patches are based on previous Nick's work and suggestions [1][2][3] to enable the Linux kernel build system on macOS hosts. macOS does not provide certain headers that are available in a GNU/Linux distribution with development headers installed, usually provided by the GNU C Library (glibc) and/or other projects. These missing headers are needed as build dependencies. To address this, the patches depend on a new Bee Headers Homebrew Tap formula [6][7][8] that provides them together with a pkg-config file to locate the include directory. To locate them, Makefiles include something like: $(shell $(HOSTPKG_CONFIG) --cflags bee-headers 2> /dev/null) [6] Project: https://github.com/bee-headers [7] Headers repository: https://github.com/bee-headers/headers.git [8] Homebrew Tap formula: https://github.com/bee-headers/homebrew-bee-headers.git To set up the environment, documentation is provided via last patch in this series. More configurations and architectures as well as support for Rust (from Finn Behrens [4] [5]) can be added in the future to extend build support. [1]: WIP: build Linux on MacOS https://github.com/ClangBuiltLinux/linux/commit/f06333e29addbc3d714adb340355f471c1dfe95a [2] Subject: [PATCH] scripts: subarch.include: fix SUBARCH on MacOS hosts https://lore.kernel.org/all/20221113233812.36784-1-nick.desaulniers@xxxxxxxxx/ [3] Subject: Any interest in building the Linux kernel from a MacOS host? https://lore.kernel.org/all/CAH7mPvj64Scp6_Nbaj8KOfkoV5f7_N5L=Tv5Z9zGyn5SS+gsUw@xxxxxxxxxxxxxx/ [4] https://github.com/kloenk/linux/commits/rust-project_macos-dylib/ [5] https://kloenk.eu/posts/build-linux-on-m1-macos/ To: Masahiro Yamada <masahiroy@xxxxxxxxxx> To: Nathan Chancellor <nathan@xxxxxxxxxx> To: Nicolas Schier <nicolas@xxxxxxxxx> To: Lucas De Marchi <lucas.demarchi@xxxxxxxxx> To: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx> To: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> To: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> To: Maxime Ripard <mripard@xxxxxxxxxx> To: Thomas Zimmermann <tzimmermann@xxxxxxx> To: David Airlie <airlied@xxxxxxxxx> To: Daniel Vetter <daniel@xxxxxxxx> To: William Hubbs <w.d.hubbs@xxxxxxxxx> To: Chris Brannon <chris@xxxxxxxxxxxxxxxx> To: Kirk Reiser <kirk@xxxxxxxxxx> To: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx> To: Paul Moore <paul@xxxxxxxxxxxxxx> To: Stephen Smalley <stephen.smalley.work@xxxxxxxxx> To: Ondrej Mosnacek <omosnace@xxxxxxxxxx> To: Catalin Marinas <catalin.marinas@xxxxxxx> To: Will Deacon <will@xxxxxxxxxx> To: Marc Zyngier <maz@xxxxxxxxxx> To: Oliver Upton <oliver.upton@xxxxxxxxx> To: James Morse <james.morse@xxxxxxx> To: Suzuki K Poulose <suzuki.poulose@xxxxxxx> To: Zenghui Yu <yuzenghui@xxxxxxxxxx> To: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> To: Jiri Slaby <jirislaby@xxxxxxxxxx> To: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> To: Bill Wendling <morbo@xxxxxxxxxx> To: Justin Stitt <justinstitt@xxxxxxxxxx> Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: linux-kbuild@xxxxxxxxxxxxxxx Cc: intel-xe@xxxxxxxxxxxxxxxxxxxxx Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx Cc: speakup@xxxxxxxxxxxxxxxxx Cc: selinux@xxxxxxxxxxxxxxx Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Cc: kvmarm@xxxxxxxxxxxxxxx Cc: linux-serial@xxxxxxxxxxxxxxx Cc: llvm@xxxxxxxxxxxxxxx Cc: Finn Behrens <me@xxxxxxxxxx> Cc: Daniel Gomez (Samsung) <d+samsung@xxxxxxxxxx> Cc: gost.dev@xxxxxxxxxxx Signed-off-by: Daniel Gomez <da.gomez@xxxxxxxxxxx> --- Changes in v2: - Add documentation and set this 'feature' as experimental. - Update cover letter. - Drop unnecessary changes. Patches removed: - kbuild: add header_install dependency to scripts - include: add endian.h support - include: add elf.h support - Update Makefiles to find Bee Headers with pkg-config. - Update file2alias to solve uuid_t conflicts inside Makefile as suggested by Nicolas Schier. - Adapt xe_gen_wa_oob to solve getprogname()/ program_invocation_short_name in runtime. as suggested by Lucas De Marchi. - Remove linux/version.h in accessibility/speakup as suggested by Masahiro Yamada. - Replace selinux patches with new Masahiro Yamada's patches: Message-id: 20240809122007.1220219-1-masahiroy@xxxxxxxxxx Link: https://lore.kernel.org/all/20240809122007.1220219-1-masahiroy@xxxxxxxxxx/ - Replace tty/vt with new Masahiro Yamada's patch: Message-id: 20240809160853.1269466-1-masahiroy@xxxxxxxxxx Link: https://lore.kernel.org/all/20240809160853.1269466-1-masahiroy@xxxxxxxxxx/ (Already merged in the linux-next tag used) - Replace scripts/kallsyms patch with Masahiro Yamada's patch: Message-id: 20240807181148.660157-1-masahiroy@xxxxxxxxxx Link: https://lore.kernel.org/all/20240807181148.660157-1-masahiroy@xxxxxxxxxx/ (Already merged in the linux-next tag used) - Link to v1: https://lore.kernel.org/r/20240807-macos-build-support-v1-0-4cd1ded85694@xxxxxxxxxxx --- Daniel Gomez (5): file2alias: fix uuid_t definitions for macos drm/xe: xe_gen_wa_oob: fix program_invocation_short_name for macos arm64: nvhe: add bee-headers support scripts: add bee-headers support Documentation: add howto build in macos Masahiro Yamada (2): selinux: do not include <linux/*.h> headers from host programs selinux: move genheaders to security/selinux/ Nick Desaulniers (1): scripts: subarch.include: fix SUBARCH on macOS hosts Documentation/kbuild/llvm.rst | 78 ++++++++++++++++++++++ arch/arm64/kernel/pi/Makefile | 1 + arch/arm64/kernel/vdso32/Makefile | 1 + arch/arm64/kvm/hyp/nvhe/Makefile | 3 +- drivers/gpu/drm/xe/xe_gen_wa_oob.c | 4 ++ scripts/Makefile | 4 +- scripts/mod/Makefile | 7 ++ scripts/mod/file2alias.c | 3 + scripts/remove-stale-files | 3 + scripts/selinux/Makefile | 2 +- scripts/selinux/genheaders/.gitignore | 2 - scripts/selinux/genheaders/Makefile | 5 -- scripts/selinux/mdp/Makefile | 2 +- scripts/selinux/mdp/mdp.c | 4 -- scripts/subarch.include | 2 +- security/selinux/.gitignore | 1 + security/selinux/Makefile | 7 +- .../genheaders => security/selinux}/genheaders.c | 3 - security/selinux/include/classmap.h | 19 ++++-- security/selinux/include/initial_sid_to_string.h | 2 - 20 files changed, 123 insertions(+), 30 deletions(-) --- base-commit: ad40aff1edffeccc412cde93894196dca7bc739e change-id: 20240807-macos-build-support-9ca0d77adb17 Best regards, -- Daniel Gomez <da.gomez@xxxxxxxxxxx>
