From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 855F6C2A09B for ; Fri, 7 Aug 2026 13:28:14 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wsKbP-00018a-LQ; Fri, 07 Aug 2026 09:27:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wsKbF-00014j-Up for qemu-devel@nongnu.org; Fri, 07 Aug 2026 09:27:03 -0400 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wsKbE-0007gu-2I for qemu-devel@nongnu.org; Fri, 07 Aug 2026 09:27:01 -0400 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 14CE9415DD; Fri, 7 Aug 2026 13:26:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 37F961F000E9; Fri, 7 Aug 2026 13:26:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786109218; bh=MXiSPGD6+09XxF16dgSei5RtIuqDo4QIh9rc7D6E5Q8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=B7da/mpnvi/TrldIjL10DqVf/hZSwsJZZWsKapr7wNxQ1/sXKi/uBWtnlSwcYSu9v uEtjdQxezdAi884pEe6HrilcopKZEAy9lkMCg+zeRdt/gpK/h8OeX2tSVkM9gLnuvx 7eT3Q+/n346ZMUNYCoOkkQxDtJvrEQ6Mc7ehsmBEnvajO/lYji5qiDhLj8vygl8e6O G6j3qtxp9rBIVI5ijjgRFN+aUtKC8240jR4Fal3NFDb8ZeHO1+DBIR8OGxdnn30BI0 E7zqg8EyYP6ZHru6Dnfq1oFSOL+MbwJ24VtbTFTrFIyOEWXEctcxDupQegQhHb0zOe eLuEx73Qg//xQ== From: Helge Deller To: qemu-devel@nongnu.org, Stefan Hajnoczi Cc: Pierrick Bouvier , deller@gmx.de, Laurent Vivier , Mikulas Patocka , Yoshinori Sato , Richard Henderson Subject: [PULL 1/3] linux-user/sh4: Deliver SIGILL on invalid instruction Date: Fri, 7 Aug 2026 15:26:50 +0200 Message-ID: <20260807132652.9687-2-deller@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260807132652.9687-1-deller@kernel.org> References: <20260807132652.9687-1-deller@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2600:3c0a:e001:78e:0:1991:8:25; envelope-from=deller@kernel.org; helo=sea.source.kernel.org X-Spam_score_int: -32 X-Spam_score: -3.3 X-Spam_bar: --- X-Spam_report: (-3.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.238, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Mikulas Patocka On invalid instruction, deliver SIGILL rather than crashing the whole process unconditionally. Cc: qemu-stable@nongnu.org Signed-off-by: Mikulas Patocka Reviewed-by: Yoshinori Sato Reviewed-by: Richard Henderson Signed-off-by: Helge Deller --- linux-user/sh4/cpu_loop.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/linux-user/sh4/cpu_loop.c b/linux-user/sh4/cpu_loop.c index ee2958d0d9..0815b9c9bf 100644 --- a/linux-user/sh4/cpu_loop.c +++ b/linux-user/sh4/cpu_loop.c @@ -64,6 +64,13 @@ void cpu_loop(CPUSH4State *env) cpu_exec_step_atomic(cs); arch_interrupt = false; break; + case 0x180: + /* Illegal instruction */ + /* fallthrough */ + case 0x1a0: + /* Illegal instruction in delay slot */ + force_sig_fault(TARGET_SIGILL, TARGET_ILL_ILLOPC, env->pc); + break; default: fprintf(stderr, "Unhandled trap: 0x%x\n", trapnr); cpu_dump_state(cs, stderr, 0); -- 2.54.0