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[180.53.81.189]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-725f1fba027sm2005005b3a.3.2024.12.09.16.19.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Dec 2024 16:19:36 -0800 (PST) From: FUJITA Tomonori To: linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org Cc: 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, catalin.marinas@arm.com, 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 Subject: [PATCH v1 4/5] loongarch/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust Date: Tue, 10 Dec 2024 09:18:00 +0900 Message-ID: <20241210001802.228725-5-fujita.tomonori@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241210001802.228725-1-fujita.tomonori@gmail.com> References: <20241210001802.228725-1-fujita.tomonori@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241209_161937_561740_DB3BAF9E X-CRM114-Status: UNSURE ( 8.83 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add new ARCH_WARN_ASM macro for BUG/WARN assembly code sharing with Rust to avoid the duplication. No functional changes. Signed-off-by: FUJITA Tomonori --- arch/loongarch/include/asm/bug.h | 31 ++++++++++++++++++++++++++++--- 1 file changed, 28 insertions(+), 3 deletions(-) diff --git a/arch/loongarch/include/asm/bug.h b/arch/loongarch/include/asm/bug.h index 08388876ade4..2343c4226595 100644 --- a/arch/loongarch/include/asm/bug.h +++ b/arch/loongarch/include/asm/bug.h @@ -21,14 +21,21 @@ #ifndef CONFIG_GENERIC_BUG #define __BUG_ENTRY(flags) #else -#define __BUG_ENTRY(flags) \ + +#define __BUG_ENTRY_START \ .pushsection __bug_table, "aw"; \ .align 2; \ 10000: .long 10001f - .; \ - _BUGVERBOSE_LOCATION(__FILE__, __LINE__) \ - .short flags; \ + +#define __BUG_ENTRY_END \ .popsection; \ 10001: + +#define __BUG_ENTRY(flags) \ + __BUG_ENTRY_START \ + _BUGVERBOSE_LOCATION(__FILE__, __LINE__) \ + .short flags; \ + __BUG_ENTRY_END #endif #define ASM_BUG_FLAGS(flags) \ @@ -55,6 +62,24 @@ do { \ unreachable(); \ } while (0) +#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(break BRK_BUG) ";" + #define HAVE_ARCH_BUG #include