linux-kernel - [tip: x86/build] x86/build: Make 64-bit defconfig the default

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Date:   Wed, 15 Feb 2023 13:28:31 -0000
From:   "tip-bot2 for Arnd Bergmann" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Arnd Bergmann <arnd@...db.de>, Ingo Molnar <mingo@...nel.org>,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: x86/build] x86/build: Make 64-bit defconfig the default

The following commit has been merged into the x86/build branch of tip:

Commit-ID:     f9bb7f6a7eb0efd282f7364115f97e652677a29b
Gitweb:        https://git.kernel.org/tip/f9bb7f6a7eb0efd282f7364115f97e652677a29b
Author:        Arnd Bergmann <arnd@...db.de>
AuthorDate:    Wed, 15 Feb 2023 10:16:56 +01:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Wed, 15 Feb 2023 14:20:17 +01:00

x86/build: Make 64-bit defconfig the default

Running 'make ARCH=x86 defconfig' on anything other than an x86_64
machine currently results in a 32-bit build, which is rarely what
anyone wants these days.

Change the default so that the 64-bit config gets used unless
the user asks for i386_defconfig, uses ARCH=i386 or runs on
a system that "uname -m" identifies as i386/i486/i586/i686.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Link: https://lore.kernel.org/r/20230215091706.1623070-1-arnd@kernel.org
---
 arch/x86/Makefile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 73ed982..b399759 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -3,10 +3,10 @@
 
 # select defconfig based on actual architecture
 ifeq ($(ARCH),x86)
-  ifeq ($(shell uname -m),x86_64)
-        KBUILD_DEFCONFIG := x86_64_defconfig
-  else
+  ifeq ($(shell uname -m | sed -e 's/i.86/i386/'),i386)
         KBUILD_DEFCONFIG := i386_defconfig
+  else
+        KBUILD_DEFCONFIG := x86_64_defconfig
   endif
 else
         KBUILD_DEFCONFIG := $(ARCH)_defconfig