linux-kernel - [PATCH] kbuild: deb-pkg: add debarch for ARCH=um

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Message-ID: <20241203111459.3331534-1-masahiroy@kernel.org>
Date: Tue,  3 Dec 2024 20:14:45 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: linux-kbuild@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	Masahiro Yamada <masahiroy@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nicolas Schier <nicolas@...sle.eu>
Subject: [PATCH] kbuild: deb-pkg: add debarch for ARCH=um

'make ARCH=um bindeb-pkg' shows the following warning.

  $ make ARCH=um bindeb-pkg
     [snip]
    GEN     debian

  ** ** **  WARNING  ** ** **

  Your architecture doesn't have its equivalent
  Debian userspace architecture defined!
  Falling back to the current host architecture (amd64).
  Please add support for um to ./scripts/package/mkdebian ...

This commit hard-codes i386/amd64 because UML is only supported for x86.

Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---

 scripts/package/mkdebian | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian
index 4ffcc70f8e31..b038a1380b8a 100755
--- a/scripts/package/mkdebian
+++ b/scripts/package/mkdebian
@@ -70,6 +70,13 @@ set_debarch() {
 			debarch=sh4$(if_enabled_echo CONFIG_CPU_BIG_ENDIAN eb)
 		fi
 		;;
+	um)
+		if is_enabled CONFIG_64BIT; then
+			debarch=amd64
+		else
+			debarch=i386
+		fi
+		;;
 	esac
 	if [ -z "$debarch" ]; then
 		debarch=$(dpkg-architecture -qDEB_HOST_ARCH)
-- 
2.43.0