linux-kernel - Re: [PATCH v7 5/5] rust: add arch_static

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Message-ID: <CANiq72np8GhZ4V22b7RekvQOhCbM67A-19Px2aVLgweC4Qxebg@mail.gmail.com>
Date: Wed, 21 Aug 2024 19:54:51 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Boqun Feng <boqun.feng@...il.com>
Cc: Alice Ryhl <aliceryhl@...gle.com>, Steven Rostedt <rostedt@...dmis.org>, 
	Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, 
	Peter Zijlstra <peterz@...radead.org>, Josh Poimboeuf <jpoimboe@...nel.org>, 
	Jason Baron <jbaron@...mai.com>, Ard Biesheuvel <ardb@...nel.org>, Miguel Ojeda <ojeda@...nel.org>, 
	Alex Gaynor <alex.gaynor@...il.com>, Wedson Almeida Filho <wedsonaf@...il.com>, Gary Guo <gary@...yguo.net>, 
	Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <benno.lossin@...ton.me>, Andreas Hindborg <a.hindborg@...sung.com>, 
	linux-trace-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>, linux-arch@...r.kernel.org, 
	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
	"H. Peter Anvin" <hpa@...or.com>, Sean Christopherson <seanjc@...gle.com>, Uros Bizjak <ubizjak@...il.com>, 
	Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>, 
	Oliver Upton <oliver.upton@...ux.dev>, Mark Rutland <mark.rutland@....com>, 
	Ryan Roberts <ryan.roberts@....com>, Fuad Tabba <tabba@...gle.com>, 
	linux-arm-kernel@...ts.infradead.org, 
	Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, 
	Albert Ou <aou@...s.berkeley.edu>, Anup Patel <apatel@...tanamicro.com>, 
	Andrew Jones <ajones@...tanamicro.com>, Alexandre Ghiti <alexghiti@...osinc.com>, 
	Conor Dooley <conor.dooley@...rochip.com>, Samuel Holland <samuel.holland@...ive.com>, 
	linux-riscv@...ts.infradead.org, Huacai Chen <chenhuacai@...nel.org>, 
	WANG Xuerui <kernel@...0n.name>, Bibo Mao <maobibo@...ngson.cn>, 
	Tiezhu Yang <yangtiezhu@...ngson.cn>, Andrew Morton <akpm@...ux-foundation.org>, 
	Tianrui Zhao <zhaotianrui@...ngson.cn>, loongarch@...ts.linux.dev
Subject: Re: [PATCH v7 5/5] rust: add arch_static_branch

On Wed, Aug 21, 2024 at 7:08 PM Boqun Feng <boqun.feng@...il.com> wrote:
>
> Have you try this with "make O=<dir>"? I hit the following issue, but I
> am rebasing on rust-dev, so I might miss something:
>
>         error: couldn't read ../rust/kernel/arch_static_branch_asm.rs: No such file or directory (os error 2)
>           --> ../rust/kernel/jump_label.rs:39:17
>            |
>         39 | const _: &str = include!("arch_static_branch_asm.rs");
>            |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>            |
>            = note: this error originates in the macro `include` (in Nightly builds, run with -Z macro-backtrace for more info)
>
>         error: aborting due to 1 previous error

Yeah, we should use a `*TREE` everywhere. In addition, we should not
use `SRCTREE` but `OBJTREE`. It is my fault, this comes from my
prototype I gave Alice.

Please see the attached diff.

Cheers,
Miguel

View attachment "objtree.diff" of type "text/x-patch" (1947 bytes)