From nobody Wed Dec 17 16:09:33 2025 Received: from mail-pl1-f177.google.com (mail-pl1-f177.google.com [209.85.214.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E913222E40F; Fri, 2 May 2025 09:47:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.177 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746179229; cv=none; b=NhQ5QyPTy112kg3xGwB3AaKq+b8WjttK+dtVQSln4KiP43dkdSpqUDoG7I5S+NyVIAWeq8hF1iezeQ8mGb/WjjzuemQEDpcJ41eM/gPlDHFcdCuQ/2flE/gGIyFT5o/LIqnsvLimzaEysQrECqmW1P/N3AH5ofBOsNbaRUsYin8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746179229; c=relaxed/simple; bh=mdMjqDgKLmfSj3Eltmr/eklydzSfhT7tfE+JI7T4puc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=T1QMVL/ufUOIy49YfS6OAspfpXQdABWkqmtgptxt026xzqTxADa/nOPZmj9HdK9d3jxCLzSU2FvwQaBAc+24+/iN3uOPUjDYQdlkkWAOKWuCXZnow/FElRAz/uIuDrao9eAbyby7B4ZX+0Fk+DxJlKdJPvWOIk7AkTjs6v4VJf0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=bkxk201Y; arc=none smtp.client-ip=209.85.214.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="bkxk201Y" Received: by mail-pl1-f177.google.com with SMTP id d9443c01a7336-2240b4de12bso29820195ad.2; Fri, 02 May 2025 02:47:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1746179223; x=1746784023; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=t/DonzYY8ky0NPr6wCGSqroH7cDtAqrs9o10+/q7fXY=; b=bkxk201YH3Uut5tb+1fPuBIHz3CUr7XZD2WJpzZdQY0XWOQCUbghYi6+URTmlsraOG XSSl/WP5a6V2lrcWF+qPguFnne4/8GzSloH0xafSZanixseUV31iQKSwtyMIRi+5ibdg o8/s2JYokGz5nZr9P5AQ5jdhAp4onY2kNU/CzpxA25Dj7IzrdWKIRUABCu39JLGVGmU3 Mz4xMU6j5r8HUI1gI6TuMYaNR0SehwSrizbscOxToPnk5c/tATUtRTb+Q5UFP9PVfnTg YpXM6lSFXyOMieHd/Tj1xbeCpmkxvdjAmgeXtmAsnEPWG7SFYU3WQ2DIIpJbyc4Bqx+X v3nA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1746179223; x=1746784023; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=t/DonzYY8ky0NPr6wCGSqroH7cDtAqrs9o10+/q7fXY=; b=Bs5awnuDcnr0eRpcxv2mxgZAuAXL9RKZyrQ9zBmriVDWwBCwq82IR3COObgByloRq/ CU4mor19nZdMe9Ev8tnO51JV5zAZB1naQ0FlESPKaOl1dG8Iax1anm5BssZeiuCNNaI4 RR1EMWXH6wfGvVxacxiL0p2Cg7uHWkXTZ97uigRLTRyRkkbzB8zvfJ23xyp/q7SNXHRZ WZhmJGhoKjCYCQNwr87ktWI8N25Qw/uvyO4s15FzTeBzXbi29PPo/7P+/xFoV1hYQGjS jlfXiYQuuZIZPT6Jp3ypQBXQkO1WtRFh1NIXnPIiM3cLH415FI+wLwUdEqvCy8Yv4b4p a3+g== X-Forwarded-Encrypted: i=1; AJvYcCWENypMhtsplhkQGPjex7HUCnUOy3fbmLGnTk1d4uyIondpD76pW0zExK4zTEJQR05GkAtA+13lSpONHF8byw==@vger.kernel.org X-Gm-Message-State: AOJu0YxC/g5R3kA0isMbNMT7P+k9pDEvU6SwDJguyXh/w9KsosnKTlNt xxdLAu5JkS5Zm2RUS0brXPYtY0ysGJyvcq1Py5YEtGLlKHz4GOGXm6iTg0sA X-Gm-Gg: ASbGnctWsB8DJDC7g6xAS2MbALsnQULwZjAG6jpsOtD7QeQ+wBYvw5Cf0XkDkB6tpkk zB4R6T+O1Fkza06FRG4NvjLgQj8ubQBqZunIUfgbj+BiP5ssLPvrmFG/jRN1KuE5qZ9Ek7zo5n5 bJxd0V/tgyxF8bLf/uoxhD4rnfioUS3VrYtIJqUH6tJId3UK2fFfwKK0BqOyGTU1nsGMTyRwr5x FqE0QejQUBGgmF1OrA83OzqMMT+bQ0gF2fCuTbI7UyZ2SUlrBBnIjk9dB02zu1jHWPSZZkdSyzH ExtbXF1ku7nbYmp45e2tU2smnaHWrXwBffhEj8PLHb11tewwduhPqDGQxsv+VBMqQC8U3oCo/YZ 7TrI2aVeMaMmzydhB9eguJkhd1DaR X-Google-Smtp-Source: AGHT+IG7SpxC9CYERKlra1NSwOhm+ZnosVtJEMd3hhbHfc+fF/GyvZa2L0kJpSrWYrENqsswlrl6UQ== X-Received: by 2002:a17:902:f70a:b0:22d:e4b8:7186 with SMTP id d9443c01a7336-22e102dc24bmr40114995ad.22.1746179222992; Fri, 02 May 2025 02:47:02 -0700 (PDT) Received: from mew.. (p4138183-ipxg22701hodogaya.kanagawa.ocn.ne.jp. [153.129.206.183]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-22e151eb166sm3273565ad.96.2025.05.02.02.46.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 May 2025 02:47:02 -0700 (PDT) From: FUJITA Tomonori To: linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org Cc: Catalin Marinas , x86@kernel.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, peterz@infradead.org, hpa@zytor.com, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, will@kernel.org, chenhuacai@kernel.org, kernel@xen0n.name, tangyouling@loongson.cn, hejinyang@loongson.cn, yangtiezhu@loongson.cn, ojeda@kernel.org, alex.gaynor@gmail.com, boqun.feng@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, benno.lossin@proton.me, a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu, dakr@kernel.org Subject: [PATCH v6 3/4] arm64/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust Date: Fri, 2 May 2025 18:45:35 +0900 Message-ID: <20250502094537.231725-4-fujita.tomonori@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250502094537.231725-1-fujita.tomonori@gmail.com> References: <20250502094537.231725-1-fujita.tomonori@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add new ARCH_WARN_ASM macro for BUG/WARN assembly code sharing with Rust to avoid the duplication. No functional changes. Acked-by: Catalin Marinas Signed-off-by: FUJITA Tomonori --- arch/arm64/include/asm/asm-bug.h | 33 ++++++++++++++++++++++++++++---- 1 file changed, 29 insertions(+), 4 deletions(-) diff --git a/arch/arm64/include/asm/asm-bug.h b/arch/arm64/include/asm/asm-= bug.h index 6e73809f6492..a5f13801b784 100644 --- a/arch/arm64/include/asm/asm-bug.h +++ b/arch/arm64/include/asm/asm-bug.h @@ -21,16 +21,21 @@ #endif =20 #ifdef CONFIG_GENERIC_BUG - -#define __BUG_ENTRY(flags) \ +#define __BUG_ENTRY_START \ .pushsection __bug_table,"aw"; \ .align 2; \ 14470: .long 14471f - .; \ -_BUGVERBOSE_LOCATION(__FILE__, __LINE__) \ - .short flags; \ + +#define __BUG_ENTRY_END \ .align 2; \ .popsection; \ 14471: + +#define __BUG_ENTRY(flags) \ + __BUG_ENTRY_START \ +_BUGVERBOSE_LOCATION(__FILE__, __LINE__) \ + .short flags; \ + __BUG_ENTRY_END #else #define __BUG_ENTRY(flags) #endif @@ -41,4 +46,24 @@ _BUGVERBOSE_LOCATION(__FILE__, __LINE__) \ =20 #define ASM_BUG() ASM_BUG_FLAGS(0) =20 +#ifdef CONFIG_DEBUG_BUGVERBOSE +#define __BUG_LOCATION_STRING(file, line) \ + ".long " file "- .;" \ + ".short " line ";" +#else +#define __BUG_LOCATION_STRING(file, line) +#endif + +#define __BUG_ENTRY_STRING(file, line, flags) \ + __stringify(__BUG_ENTRY_START) \ + __BUG_LOCATION_STRING(file, line) \ + ".short " flags ";" \ + __stringify(__BUG_ENTRY_END) + +#define ARCH_WARN_ASM(file, line, flags, size) \ + __BUG_ENTRY_STRING(file, line, flags) \ + __stringify(brk BUG_BRK_IMM) + +#define ARCH_WARN_REACHABLE + #endif /* __ASM_ASM_BUG_H */ --=20 2.43.0