linux-kernel - Re: [PATCH v2] arm: rust: Enable Rust support for ARMv7

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Message-ID: <CAH5fLgj3z4TMnXz=zygLW9Fku6N6nX0jyw2b0uvg=Kat-d-o2Q@mail.gmail.com>
Date: Thu, 4 Jul 2024 10:20:30 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: Christian Schrefl <chrisi.schrefl@...il.com>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	rust-for-linux@...r.kernel.org, Miguel Ojeda <ojeda@...nel.org>, 
	Jamie Cunliffe <Jamie.Cunliffe@....com>, Sven Van Asbroeck <thesven73@...il.com>, 
	Geert Stappers <stappers@...ppers.nl>, Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH v2] arm: rust: Enable Rust support for ARMv7

On Mon, Jun 17, 2024 at 6:04 PM Christian Schrefl
<chrisi.schrefl@...il.com> wrote:
> diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> index 71afdd98ddf2..9cc10e32e8be 100644
> --- a/arch/arm/Makefile
> +++ b/arch/arm/Makefile
> @@ -150,6 +150,7 @@ endif
>  KBUILD_CPPFLAGS        +=$(cpp-y)
>  KBUILD_CFLAGS  +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
>  KBUILD_AFLAGS  +=$(CFLAGS_ABI) $(AFLAGS_ISA) -Wa,$(arch-y) $(tune-y) -include asm/unified.h -msoft-float
> +KBUILD_RUSTFLAGS += --target=arm-unknown-linux-gnueabi

On arm64 we use a target called aarch64-unknown-none. Should you also
be using arm-unknown-none? Or maybe the arm64 target should be changed
to aarch64-unknown-linux-gnueabi?

Alice