Re: [PATCH v5 00/22] Add support for the Mobileye EyeQ5 SoC

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On Thu, Dec 21, 2023 at 08:57:55AM +0100, Gregory CLEMENT wrote:
> I do not oppose the addition of a new platform, even though, like
> Jiaxun, I would prefer to avoid duplicating code. The only thing
> preventing the use of the same kernel for EyeQ5 and other platforms is
> the starting address.

there shouldn't be code duplication.

My rough idea would be something like

diff --git a/arch/mips/Kbuild b/arch/mips/Kbuild
index af2967bffb73..d683993ed331 100644
--- a/arch/mips/Kbuild
+++ b/arch/mips/Kbuild
@@ -17,6 +17,7 @@ obj- := $(platform-y)
 # mips object files
 # The object files are linked as core-y files would be linked
 
+obj-y += generic/
 obj-y += kernel/
 obj-y += mm/
 obj-y += net/
diff --git a/arch/mips/generic/Makefile b/arch/mips/generic/Makefile
index e37a59bae0a6..56011d738441 100644
--- a/arch/mips/generic/Makefile
+++ b/arch/mips/generic/Makefile
@@ -4,9 +4,9 @@
 # Author: Paul Burton <paul.burton@xxxxxxxx>
 #
 
-obj-y += init.o
-obj-y += irq.o
-obj-y += proc.o
+obj-$(CONFIG_MACH_GENERIC_CORE) += init.o
+obj-$(CONFIG_MACH_GENERIC_CORE) += irq.o
+obj-$(CONFIG_MACH_GENERIC_CORE) += proc.o
 
 obj-$(CONFIG_YAMON_DT_SHIM)            += yamon-dt.o
 obj-$(CONFIG_LEGACY_BOARD_SEAD3)       += board-sead3.o

so everyboady needing these parts of a generic kernel is able
to take it.

> Therefore, if it were possible to have a relocatable kernel, this
> issue would disappear.

yes. There is support for relocatable kernel, so what are we missing
there ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]




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