From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (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 4A59B12B90 for ; Mon, 10 Jul 2023 18:35:52 +0000 (UTC) Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-262d8c40189so6119548a91.0 for ; Mon, 10 Jul 2023 11:35:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1689014151; x=1691606151; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=+Lmw3qam11jRSo1H1z3ye084M7cKP++evQKCp2c6VGA=; b=mBak734wMFR6S9+GtbGpTrkghWF+xr1fRhSK0yzJKLx0aVQpIh/dJA08JpJj0Dspmv +KbhrJ1C2ctjEr/1mPfjOLMv2MbYo0us/2F7/8vx2tcXngA5q7eTaZ67JcQRTRYHOu5h 8muHVf2PQjWeu46I51Zsb1knY7eaQnEy4NmF1rWIF9TEchAsuxDYzeXnnAtTHL23VWH+ oxJSCthj46MWSMAttTVrGpHOMejythMECwFTW988R748Ji6HIYOI2Dtt6GQ+aEaySBSr YdYX6GRMU7PTiffp1+4F4pOPCeWqwdawHz7JdI8gfFK8pVDdHxB4qkSizIV8TETm576h gD4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689014151; x=1691606151; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=+Lmw3qam11jRSo1H1z3ye084M7cKP++evQKCp2c6VGA=; b=WyMC9+GZD8cK6MqJ+Tj7VL16wEi9ILF9ConHY4w3t82ar0LdRWtnSJpZ2W0Rzh17Ef 0ScyWD0JtE49E0IbTqi0uVOGO9yfNpRAr3lP8LXXtXJaN94BTAupavm16KBj1IKMfR0p z5ooyN6jEAGYbZ8wGcXhMY+aWWl6lakGt11VgWKKf0gqGjKs7SGOR45K/bUvLEZDVcgf IzOXAL6uHUo2dFovucl61am9LI6CXxqBLEi5CCAC0H5INztjk+cL80q2JpL+HYz8loE5 3T5FERwldWhTGlUI/W6j1QciykD/5ucUNVt/EPdIE+ckN37tXi+DilFDF0odT2sjwb29 mcIw== X-Gm-Message-State: ABy/qLYF9OhEgLR/Cbf7Y4AjvzNaJCjRAobGVYc9dWf4VOMFdoWzV62l /sQFgIc5bMGsDLdQtGTs48cbAGnSBpWAQJAYhKA= X-Google-Smtp-Source: APBJJlFU00+7gY7YBrESlPEsWXN0HjjU8yiIxkSBDPukNPRNwI/iq87FZheK3yIXtLj3iPKAZwQFHXwHjUoK9+pnV18= X-Received: from samitolvanen.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:4f92]) (user=samitolvanen job=sendgmr) by 2002:a17:90a:d511:b0:263:4d9e:64f1 with SMTP id t17-20020a17090ad51100b002634d9e64f1mr11001626pju.0.1689014151573; Mon, 10 Jul 2023 11:35:51 -0700 (PDT) Date: Mon, 10 Jul 2023 18:35:47 +0000 In-Reply-To: <20230710183544.999540-8-samitolvanen@google.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20230710183544.999540-8-samitolvanen@google.com> X-Developer-Key: i=samitolvanen@google.com; a=openpgp; fpr=35CCFB63B283D6D3AEB783944CB5F6848BBC56EE X-Developer-Signature: v=1; a=openpgp-sha256; l=1996; i=samitolvanen@google.com; h=from:subject; bh=q4ijnPW2Mn1tvBetsRvgpl+qoFykStv8yW3UK+1fGGg=; b=owEB7QES/pANAwAKAUy19oSLvFbuAcsmYgBkrE+ABPMDmB0fh0LjTs3/VHFrPcBar3PHMmw3b h6Q9A6DPKuJAbMEAAEKAB0WIQQ1zPtjsoPW0663g5RMtfaEi7xW7gUCZKxPgAAKCRBMtfaEi7xW 7jgpC/9553yUfoqA9C4FRMa2OFuUbOCPwbvDRNsX7Y9zDAkutsoIgeg23FWNH3zegBmF5hA7+uW gmc4wt+WIt8lObecQrM8afOor4zIgp36iPBEyXWKQWiV6rzZqTev31yXsHzaeOxi/S0pUVykNZ2 BVisTBwjLdMO2wO0WJRMCtoQheGw7NreTHf6ke1uYaqM71zvVaIijKaJL82bOoZGYc9tuUSeBnw i7Ve2L/W+lCEs0THbayq+7Z+wGOQ3f8YyU5VedjHsi1v0wki1Q0ekFH5I/BhQDq65ae4cHHfBQZ 8faWYq/uAteKnSDn52Y5KqaH9pnHBKpFpYAUSI4Y1m1s1JQlpKwyIWsL+v9Lv5VqnVibdLXvZRD baULUYdoNKvc0fUPv746yPn/Ty1RsLoyaulv1PWezPFQ2WvsaAlhmAHtxKrC4tm19h8ptxDztlL MUIMlLVQLmpTSJZH9C4VsYCQuhJhmC6eljPY8UdNAn8rs0Lsd0Bzo6uRDWaYza3fi9HwQ= X-Mailer: git-send-email 2.41.0.255.g8b1d071c50-goog Message-ID: <20230710183544.999540-10-samitolvanen@google.com> Subject: [PATCH v2 2/6] riscv: Add types to indirectly called assembly functions From: Sami Tolvanen To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Kees Cook Cc: Nathan Chancellor , Nick Desaulniers , Conor Dooley , linux-riscv@lists.infradead.org, llvm@lists.linux.dev, linux-kernel@vger.kernel.org, Sami Tolvanen Content-Type: text/plain; charset="UTF-8" With CONFIG_CFI_CLANG, assembly functions indirectly called from C code must be annotated with type identifiers to pass CFI checking. Use the SYM_TYPED_START macro to add types to the relevant functions. Reviewed-by: Kees Cook Tested-by: Nathan Chancellor Signed-off-by: Sami Tolvanen --- arch/riscv/kernel/mcount.S | 5 +++-- arch/riscv/kernel/suspend_entry.S | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/riscv/kernel/mcount.S b/arch/riscv/kernel/mcount.S index 8a6e5a9e842a..6c9469050f4c 100644 --- a/arch/riscv/kernel/mcount.S +++ b/arch/riscv/kernel/mcount.S @@ -3,6 +3,7 @@ #include #include +#include #include #include #include @@ -47,13 +48,13 @@ addi sp, sp, 4*SZREG .endm -ENTRY(ftrace_stub) +SYM_TYPED_FUNC_START(ftrace_stub) #ifdef CONFIG_DYNAMIC_FTRACE .global MCOUNT_NAME .set MCOUNT_NAME, ftrace_stub #endif ret -ENDPROC(ftrace_stub) +SYM_FUNC_END(ftrace_stub) #ifdef CONFIG_FUNCTION_GRAPH_TRACER ENTRY(return_to_handler) diff --git a/arch/riscv/kernel/suspend_entry.S b/arch/riscv/kernel/suspend_entry.S index 12b52afe09a4..f7960c7c5f9e 100644 --- a/arch/riscv/kernel/suspend_entry.S +++ b/arch/riscv/kernel/suspend_entry.S @@ -5,6 +5,7 @@ */ #include +#include #include #include #include @@ -58,7 +59,7 @@ ENTRY(__cpu_suspend_enter) ret END(__cpu_suspend_enter) -ENTRY(__cpu_resume_enter) +SYM_TYPED_FUNC_START(__cpu_resume_enter) /* Load the global pointer */ .option push .option norelax @@ -94,4 +95,4 @@ ENTRY(__cpu_resume_enter) /* Return to C code */ ret -END(__cpu_resume_enter) +SYM_FUNC_END(__cpu_resume_enter) -- 2.41.0.255.g8b1d071c50-goog