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Message-Id: <20240906-macos-build-support-v2-1-06beff418848@samsung.com>
Date: Fri, 06 Sep 2024 13:01:28 +0200
From: Daniel Gomez via B4 Relay <devnull+da.gomez.samsung.com@...nel.org>
To: Masahiro Yamada <masahiroy@...nel.org>,
Nathan Chancellor <nathan@...nel.org>, Nicolas Schier <nicolas@...sle.eu>,
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Cc: linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
intel-xe@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
speakup@...ux-speakup.org, selinux@...r.kernel.org,
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Finn Behrens <me@...enk.dev>,
"Daniel Gomez (Samsung)" <d+samsung@...ces.com>, gost.dev@...sung.com,
Daniel Gomez <da.gomez@...sung.com>,
Nick Desaulniers <nick.desaulniers@...il.com>
Subject: [PATCH v2 1/8] scripts: subarch.include: fix SUBARCH on macOS
hosts
From: Nick Desaulniers <nick.desaulniers@...il.com>
When building the Linux kernel on an aarch64 macOS based host, if we don't
specify a value for ARCH when invoking make, we default to arm and thus
multi_v7_defconfig rather than the expected arm64 and arm64's defconfig.
This is because subarch.include invokes `uname -m` which on MacOS hosts
evaluates to `arm64` but on Linux hosts evaluates to `aarch64`,
This allows us to build ARCH=arm64 natively on macOS (as in ARCH need
not be specified on an aarch64-based system).
Avoid matching arm64 by excluding it from the arm.* sed expression.
Signed-off-by: Nick Desaulniers <nick.desaulniers@...il.com>
Signed-off-by: Daniel Gomez <da.gomez@...sung.com>
---
scripts/subarch.include | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/subarch.include b/scripts/subarch.include
index 4bd327d0ae42..c4592d59d69b 100644
--- a/scripts/subarch.include
+++ b/scripts/subarch.include
@@ -6,7 +6,7 @@
SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
-e s/sun4u/sparc64/ \
- -e s/arm.*/arm/ -e s/sa110/arm/ \
+ -e /^arm64$$/!s/arm.*/arm/ -e s/sa110/arm/ \
-e s/s390x/s390/ \
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
--
2.46.0
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