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([2605:e000:c74f:dc00:6838:d2b2:17e2:8445]) by smtp.gmail.com with ESMTPSA id q22sm4473049pfg.170.2019.12.18.11.23.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Dec 2019 11:23:02 -0800 (PST) Subject: Re: [PATCH 3/7] configure: Do not force pie=no for non-x86 To: Thomas Huth , qemu-devel@nongnu.org References: <20191218031920.6414-1-richard.henderson@linaro.org> <20191218031920.6414-4-richard.henderson@linaro.org> <19a90c1c-3407-522c-72c7-1612ba66147c@redhat.com> From: Richard Henderson Message-ID: <73905ca5-bc1f-27ed-8315-c8b73c58cabc@linaro.org> Date: Wed, 18 Dec 2019 09:23:00 -1000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <19a90c1c-3407-522c-72c7-1612ba66147c@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::443 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: berrange@redhat.com, i@maskray.me, philmd@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 12/17/19 9:05 PM, Thomas Huth wrote: > On 18/12/2019 04.19, Richard Henderson wrote: >> PIE is supported on many other hosts besides x86. >> >> The default for non-x86 is now the same as x86: pie is used >> if supported, and may be forced via --enable/--disable-pie. > > The original commit that introduce this code (40d6444e91c) said: > > "Non-x86 are not changed, as they require TCG changes" > > ... are these "TCG changes" in place nowadays? Did you check on non-x86 > systems? If so, please mention this in the commit message. I have no idea what those "tcg changes" would be. I have checked aarch64 (bionic) and ppc64le (centos 7). I'll update the commit message. r~