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([71.212.149.95]) by smtp.gmail.com with ESMTPSA id g9-20020aa796a9000000b006be5af77f06sm3881690pfk.2.2023.10.18.16.31.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Oct 2023 16:31:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1697671897; x=1698276697; darn=nongnu.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=1I5j+CVAtN1UYbE5YS09fVUfZ8qAm7sA0ML6lgTI9YE=; b=w3uxCWr+FAeDbgM3yAWT+aejaZA8XRR7mCNEedAyu1+8LFLVrfDXwhSLoHVOAMiwO6 KNnWcKl4rNgSSazKdctDoar/OQ9WI+YFT+DQ2Tu2rh7TQcucrt/B5pt/FmBq86br+eOe MFYzhhMwLei2KGlOMnKlaz0bBqvB44RZLpt6A6fLpfsQAJ6d/FRPbbJLJLTR9IZNl86H jcsw9RhuiDrApjaYCqRU9pHa/D6crvoP2a3IYabRGAWTSykjj3REzVaU3eNxwX4L75Z2 5dwhW3sQZekELF2V3FolReYDJM0SbfNixBMjXWaasrXh/MsMdCnQO+oKw9558vpjdqDe wXWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697671897; x=1698276697; 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=1I5j+CVAtN1UYbE5YS09fVUfZ8qAm7sA0ML6lgTI9YE=; b=HljuvF88Qy8CaSVAchtdZm4JDWmGTVWZHvbYt0Z4NoVnS9kvY85AUJOP75L8Hqt05s arQRq+IUEW0vRJY8g6NfZGvDog3OThG2Rdu2f3cNOLSJNxGa2V41gsN0WjCwFQyKsrru 0ezZ1Zw9yE7eDYTUEXqrggvi+YTe++r4UpD1SocZQ0n8It5nE1kbzThVJUITjwljY7LZ JsANNKno18TzhMdgMilSiKHxEVZgbdHlYVP+5z3+PSi7e9qIY2OgMSKQ/UlbK/m32d/F BviBOzB60jNwp+Gbe+ZI5xfvsMImuYzo2WBmNQ15/LVB3FnWP944fd4OVhLl3YnbZRFl 1xTg== X-Gm-Message-State: AOJu0YxR5QRX9Zp3V0iBhf4iQI1z5TqjzZ3O1QEQba+Hh7E9aDqiDS/A G480kjHLfYY+UYuZlURT4frq7GDG9FWwn7V87bk= X-Google-Smtp-Source: AGHT+IHXiLjylmN8G6bxSVj06uKRlBovtK8IuWHWxvv5A6Zj3AUmyvtjIa8Zsxgv12YL16XFO2t1qg== X-Received: by 2002:a05:6a00:1354:b0:692:6d3f:485b with SMTP id k20-20020a056a00135400b006926d3f485bmr641843pfu.3.1697671897116; Wed, 18 Oct 2023 16:31:37 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: Mikulas Patocka , qemu-stable@nongnu.org Subject: [PULL 02/14] linux-user/mips: fix abort on integer overflow Date: Wed, 18 Oct 2023 16:31:22 -0700 Message-Id: <20231018233134.1594292-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231018233134.1594292-1-richard.henderson@linaro.org> References: <20231018233134.1594292-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::42f; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1697672030535100007 Content-Type: text/plain; charset="utf-8" From: Mikulas Patocka QEMU mips userspace emulation crashes with "qemu: unhandled CPU exception 0x15 - aborting" when one of the integer arithmetic instructions detects an overflow. This patch fixes it so that it delivers SIGFPE with FPE_INTOVF instead. Cc: qemu-stable@nongnu.org Signed-off-by: Mikulas Patocka Message-Id: <3ef979a8-3ee1-eb2d-71f7-d788ff88dd11@redhat.com> Reviewed-by: Richard Henderson Signed-off-by: Richard Henderson --- linux-user/mips/cpu_loop.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c index 8735e58bad..990b03e727 100644 --- a/linux-user/mips/cpu_loop.c +++ b/linux-user/mips/cpu_loop.c @@ -180,7 +180,9 @@ done_syscall: } force_sig_fault(TARGET_SIGFPE, si_code, env->active_tc.PC); break; - + case EXCP_OVERFLOW: + force_sig_fault(TARGET_SIGFPE, TARGET_FPE_INTOVF, env->active_= tc.PC); + break; /* The code below was inspired by the MIPS Linux kernel trap * handling code in arch/mips/kernel/traps.c. */ --=20 2.34.1