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Fri, 05 Jul 2024 01:47:13 -0700 (PDT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: Wainer dos Santos Moschetta , Beraldo Leal , David Hildenbrand , Paolo Bonzini , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Pierrick Bouvier , Alexandre Iooss , Thomas Huth , Mahmoud Mandour , Peter Maydell , qemu-arm@nongnu.org, Aleksandar Rikalo , Mads Ynddal , Yanan Wang , Eduardo Habkost , Peter Xu , Richard Henderson , Marcel Apfelbaum , Paul Burton , Stefan Hajnoczi , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Laurent Vivier , Akihiko Odaki Subject: [PATCH v2 19/40] linux-user/main: Suppress out-of-range comparison warning for clang Date: Fri, 5 Jul 2024 09:40:26 +0100 Message-Id: <20240705084047.857176-20-alex.bennee@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240705084047.857176-1-alex.bennee@linaro.org> References: <20240705084047.857176-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=2a00:1450:4864:20::635; envelope-from=alex.bennee@linaro.org; helo=mail-ej1-x635.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: 1720169352265100003 From: Richard Henderson For arm32 host and arm64 guest we get .../main.c:851:32: error: result of comparison of constant 70368744177664 w= ith expression of type 'unsigned long' is always false [-Werror,-Wtautologi= cal-constant-out-of-range-compare] if (TASK_UNMAPPED_BASE < reserved_va) { ~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~ We already disable -Wtype-limits here, for this exact comparison, but that is not enough for clang. Disable -Wtautological-compare as well, which is a superset. GCC ignores the unknown warning flag. Signed-off-by: Richard Henderson Reviewed-by: Akihiko Odaki Message-Id: <20240630190050.160642-15-richard.henderson@linaro.org> Signed-off-by: Alex Benn=C3=A9e --- linux-user/main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/linux-user/main.c b/linux-user/main.c index 94c99a1366..7d3cf45fa9 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -843,6 +843,7 @@ int main(int argc, char **argv, char **envp) */ #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wtype-limits" +#pragma GCC diagnostic ignored "-Wtautological-compare" =20 /* * Select an initial value for task_unmapped_base that is in range. --=20 2.39.2