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[174.21.142.130]) by smtp.gmail.com with ESMTPSA id j23-20020a17090ae61700b001c6bb352763sm6590099pjy.52.2022.03.20.09.00.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 20 Mar 2022 09:00:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=psn5p0gK6p7KHbN3cFd3zZ4fpGBd9MmHd4e6lUYOqhY=; b=yfF5jeyiGeNfNlAYAkPOMcSogvdBikfe2J6CDOXR40uYh453cNaDCE2F7p/mWbiIvi XxIIak/tfYCRq2MkF1z4zqTBDJADhOsWV4VnwU2lwld/4VogmIa85jb2Ji0JmAYHsxg5 LbslFjEffyqhHcTQqhlDQ1hmUPVhHoQKA880s7vDCqc5r/ZOFYkU6LEFj8IOyi3stMUg vC21HUhe51BXxOmAbaRcFvRFVtJyZx/qqEUE+9dnVUv5saRydAGplptxOGYfDYujjT9s kQPCvf9d3Zt8S++PzAjeu+74eeo9xcqJYxpdZpl9sVKEP1hvILvlMeBQQ2lx4Xb1eY7+ 1E2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=psn5p0gK6p7KHbN3cFd3zZ4fpGBd9MmHd4e6lUYOqhY=; b=4bAmmntw9YfN7/9dHJ8wXYS6Xrcb6tQbGzr/IVwMhlUMGk8HZwTKQEwU5FHJYl6/TC 59QPKkZ027Rj5b/OpbwqP5SPU4cyfSN8SSZYdAN4kERRWcz70n1U0SyjMiQzsbx8Ljf3 7qV7YdnYpF/fO5S+KXDOkRV65TFXaCmIW5z58DlfMTXgbx05CTJtZbmXzQX/GlvqYzep hqoyMbhBOn0TeMtn5uzJ9BI+g7ICmwARPiO/Ir5L8iC4pcGoE9NDcccoCXuiLk4ZtPH/ 49SeOnwMJuw8k7VDSy8QV1uOkrPLDDnkDOAIL8tMFP4geB+z6lufKmoNkLqn4izAf32X jrrw== X-Gm-Message-State: AOAM531V8VbVYok+SUNFBwbDROgIabHuQ6KRiVXmB67XZCkXziAUSmR+ Y4yObd3fKVnMHiKD7MBkRlsFnijCNuwlxw== X-Google-Smtp-Source: ABdhPJwfu1lIkSy4sTwxV7LpkOXhJgUFwxdVn58AJJsjMyvbWvtbswTYK5ELQvzgMCKUpFsa6GsOeg== X-Received: by 2002:a17:902:cccc:b0:14e:e89c:c669 with SMTP id z12-20020a170902cccc00b0014ee89cc669mr9254784ple.58.1647792017023; Sun, 20 Mar 2022 09:00:17 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 4/7] linux-user/nios2: Handle special qemu syscall return values Date: Sun, 20 Mar 2022 09:00:06 -0700 Message-Id: <20220320160009.2665152-5-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220320160009.2665152-1-richard.henderson@linaro.org> References: <20220320160009.2665152-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::1031 (failed) 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::1031; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1031.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1647792342829100001 Content-Type: text/plain; charset="utf-8" Honor QEMU_ESIGRETURN and QEMU_ERESTARTSYS. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- linux-user/nios2/cpu_loop.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/linux-user/nios2/cpu_loop.c b/linux-user/nios2/cpu_loop.c index 2ae94f4a95..d12c3c2852 100644 --- a/linux-user/nios2/cpu_loop.c +++ b/linux-user/nios2/cpu_loop.c @@ -48,6 +48,14 @@ void cpu_loop(CPUNios2State *env) env->regs[7], env->regs[8], env->regs[9], 0, 0); =20 + if (ret =3D=3D -QEMU_ESIGRETURN) { + /* rt_sigreturn has set all state. */ + break; + } + if (ret =3D=3D -QEMU_ERESTARTSYS) { + env->regs[R_PC] -=3D 4; + break; + } /* * See syscall_set_return_value. * Use the QEMU traditional -515 error indication in --=20 2.25.1