Re: [Buildroot] [PATCH v1 0/8] support/kconfig: bump to linux-v6.9-rc5 version

[Peter Seiderer via buildroot <buildroot@buildroot.org>]

Hello Thomas,

On Sun, 18 May 2025 16:55:36 +0200, Thomas Petazzoni <thomas.petazzoni@bootlin.com> wrote:

> Hello Peter,
> 
> On Mon,  6 May 2024 16:45:43 +0200
> Peter Seiderer via buildroot <buildroot@buildroot.org> wrote:
> 
> > First draft of updating support/kconfig to an actual linux upstream version
> > (6.9-rc5).  
> 
> I was wondering if you had any updates on this patch series? Indeed,
> updating kconfig would be quite nice, there are some fixes/improvements
> that we would like to have that were added recently in the Linux kernel
> kconfig, but that requires updating our support/kconfig code of course.

Quite some time passed ;-), no real update since v2 (see [1]), besides the following
additional patch in my local git repo:

From 364ccc709b2997f30a4f88770c6d238c04369f31 Mon Sep 17 00:00:00 2001
From: Peter Seiderer <ps.report@gmx.net>
Date: Tue, 14 May 2024 00:02:31 +0200
Subject: toolchain-external: do not expand ARCH

- escape ARCH usage to force to not expand at configure time (but at make
  time), needed for upcoming kconfig update (see upstream commit [1])

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=104daea149c45cc84842ce77a9bd6436d19f3dd8

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
---
Changes v2 -> v3:
  - new patch

diff --git a/support/scripts/gen-bootlin-toolchains b/support/scripts/gen-bootlin-toolchains
index 502411d4cc..45dd86c942 100755
--- a/support/scripts/gen-bootlin-toolchains
+++ b/support/scripts/gen-bootlin-toolchains
@@ -509,7 +509,7 @@ def gen_config_in_options(toolchains, fpath):
         f.write("if BR2_TOOLCHAIN_EXTERNAL_BOOTLIN\n\n")
 
         f.write("config BR2_TOOLCHAIN_EXTERNAL_PREFIX\n")
-        f.write("\tdefault \"$(ARCH)-linux\"\n")
+        f.write("\tdefault \"\\$(ARCH)-linux\"\n")
 
         f.write("\n")
 
diff --git a/toolchain/toolchain-external/toolchain-external-bootlin/Config.in.options b/toolchain/toolchain-external/toolchain-external-bootlin/Config.in.options
index ef3d23d026..d8d54584de 100644
--- a/toolchain/toolchain-external/toolchain-external-bootlin/Config.in.options
+++ b/toolchain/toolchain-external/toolchain-external-bootlin/Config.in.options
@@ -49,7 +49,7 @@ config BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_ARCH_SUPPORTS
 if BR2_TOOLCHAIN_EXTERNAL_BOOTLIN
 
 config BR2_TOOLCHAIN_EXTERNAL_PREFIX
-	default "$(ARCH)-linux"
+	default "\$(ARCH)-linux"
 
 config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
 	default "toolchain-external-bootlin"
diff --git a/toolchain/toolchain-external/toolchain-external-custom/Config.in.options b/toolchain/toolchain-external/toolchain-external-custom/Config.in.options
index 94ea3b82de..23028188d8 100644
--- a/toolchain/toolchain-external/toolchain-external-custom/Config.in.options
+++ b/toolchain/toolchain-external/toolchain-external-custom/Config.in.options
@@ -23,7 +23,7 @@ config BR2_TOOLCHAIN_EXTERNAL_REL_BIN_PATH
 
 config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX
 	string "Toolchain prefix"
-	default "$(ARCH)-linux"
+	default "\$(ARCH)-linux"
 	help
 	  Component name prefix used by your external toolchain.


Not much buildroot work from my side (besides very sporadic contributions ;-) )
as I have no (payed) buildroot related projects at the moment...

Regards,
Peter

[1] https://lore.kernel.org/buildroot/20240513091950.30116-1-ps.report@gmx.net/t/#u

> 
> Thanks a lot!
> 
> Thomas

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