X-Recipient: archive-cygwin AT delorie DOT com
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org EB8313858284
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1676457216;
	bh=MGyqqXYMyE/qm2ZclAUopz8ubbwG5DaLO6tpdCeluwc=;
	h=Date:To:Subject:References:In-Reply-To:List-Id:List-Unsubscribe:
	 List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc:
	 From;
	b=n62p+zAoAEntfjIcDWfMA1VfeB6os68RXqR0bW9slRXnLXtPHXd/2QNIH6A9tHw7Q
	 QLtX00RLmJ7JAKgnbAE9Xy4MigB8VzCYRnOA1xIEbUBtdW8TU/sXzTHNDPuqZa4aO3
	 XZF0u13aEi9+Jt2o43dR8GqGYyGng2g4UySU4b+0=
X-Original-To: cygwin AT cygwin DOT com
Delivered-To: cygwin AT cygwin DOT com
Date: Wed, 15 Feb 2023 11:32:45 +0100
To: cygwin AT cygwin DOT com
Subject: Re: Why do these mprotect always fail?
Message-ID: <Y+y0zRQWVRWBkhCX@calimero.vinschen.de>
Mail-Followup-To: cygwin AT cygwin DOT com,
 w6b7rk5yu4mt25v3 <w6b7rk5yu4mt25v3 AT protonmail DOT com>
References: <yxifinJpR7DQ4XDFwpYMrUknNpsg8wu5T1KYPeNIwjf3FL_lYou0whmzg-XCoFgYlcz96k0yEjkrxCOQOOTztnk_tvW7ZNi8_riHbsOn-ZU=@protonmail.com>
 <ruVqVpKyYTyh3m-4mzaAg2pyhJAqlamcbUYKB8ghh_LwAKIqpabv0LNqlt8_Owfzx0Hc6c1C6nJE4Czf4hod2ukAWe3b6p_WAaaGLPk7CI8=@protonmail.com>
MIME-Version: 1.0
Content-Disposition: inline
In-Reply-To: <ruVqVpKyYTyh3m-4mzaAg2pyhJAqlamcbUYKB8ghh_LwAKIqpabv0LNqlt8_Owfzx0Hc6c1C6nJE4Czf4hod2ukAWe3b6p_WAaaGLPk7CI8=@protonmail.com>
X-Provags-ID: V03:K1:rLjD+xkDo7vGvJ8b1XJNizG1/yPE98HnWoY9XeCB3fpHR2UMZNC
 DmTIUCbxgbTmCMTO8MRUxR4oXLUnsXAnf915lLBBjjWBcRtZ5KJI8F2W6kZZmlpWQNhRzC+
 bnvbwdqQZvVXZ41J6PBhPuicHMyYduEECehD4Y+Rbki6E7Ovjzqtvpn0QtqAtyqs/K9DnOG
 PfTUd1AbsOfiZHsXFHRkw==
UI-OutboundReport: notjunk:1;M01:P0:Go2QIT1udTk=;iVwoALGa7Z0XZQJ1I+ZY6zHbsOA
 qkFfB8ba8/R5kDl93Ofhw0I2Y1mdOEQ7k4w9bi3Fn+oGzuwZU1QDJ+IXFUtnPy1OiYKnIu4Dl
 ywig6d2s3rJRIXqCPS/nao8fQThcHp1utpW8Z/ITaFPrME5k2pF7zkJcIu2YRb8yN+ycLmqN8
 Rz37ZEBNnFrf0vIcFzL6bQitVKYrsEZcrNUhU72w80ezuvg6LymggFY06wHtal9LeY5wWQgne
 7u9js0z6RmnyAP8q9KDEiH6b96/WogcMg64Ca+mlk4Oqqmw508Ge3bVDf1WsIok+nsIXzae3j
 Z930aGV0Cmy6iRENoJ4OUUACYJ+5VwfC+PlsqhlzbtPhAJCQmjrOl671VGC81fwIPAQJkX1F4
 NcIEUw/xHgJxYDbrqQQ3DHVmIzlW7WK2rCx28H6hIQmxsw2IOkpOVaCsKkgN2t14BF7VgJOfX
 2lm329ZzUX3Xdp9fan7QlPUem1uExkeRWqHQFsd0g4JuFbii2/Bq3HG5Lp1p1Iqm2fiPCTYBh
 Wu92fOwbWidg3kOmU0hOyuKwuyUJUu0GfTMOqN83jJkEG8P7H//5QDKWvLu679wfetW3NlzSh
 Y/knGX6CucQm2sMMpo3ru9TsAg95ITJ0EVQnFeZLf5tlExjey3WgVx5teEvt+Iy/RduruTjjP
 LXDPax8KU84WoTZzSfJyz8ASyS7x+ioq43YOJxjoSw==
X-Spam-Status: No, score=-97.4 required=5.0 tests=BAYES_00,
 GOOD_FROM_CORINNA_CYGWIN, KAM_DMARC_STATUS, RCVD_IN_DNSWL_NONE,
 RCVD_IN_MSPIKE_H2, SPF_FAIL, SPF_HELO_NONE,
 TXREP autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
 server2.sourceware.org
X-BeenThere: cygwin AT cygwin DOT com
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe: <https://cygwin.com/mailman/options/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From: Corinna Vinschen via Cygwin <cygwin AT cygwin DOT com>
Reply-To: cygwin AT cygwin DOT com
Cc: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>,
        w6b7rk5yu4mt25v3 <w6b7rk5yu4mt25v3 AT protonmail DOT com>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com
Sender: "Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>


cygwin-developers is for developers woking on Cygwin itself, not for
developers using Cygwin to develop something else.  I dropped the ML
from the recipient list.

And please don't top-post.  Thanks.

On Feb 15 09:43, w6b7rk5yu4mt25v3 via Cygwin wrote:
> Almost forgot, PAGE_SIZE is set to 4096. This is a Linux application,
> when I compile on Cygwin it complained that PAGE_SIZE is redefined but
> the compilation was success nevertheless. Only when I run the
> application, I always exited with "Unable to mprotect".

PAGESIZE is 64K on Cygwin.  If you change that, it breaks and you can
keep the pieces.

It would be nice to send a complete, self-contained STC(*) in plain C,
so reproducing your issue is simple and doesn't require to rework
your code to get a running, debuggable testcase.


Corinna


(*) https://cygwin.com/acronyms/#STC

-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple