X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:mime-version:in-reply-to:references:from:date
	:message-id:subject:to:content-type:content-transfer-encoding;
	q=dns; s=default; b=ce1dYTKUE1nQXLyL05/UthDDCQifZGuO/dYMaqeV0v8
	balwGlKM+HON7HGo9iB8+nSGpRob8v0Aa+u6OF2btRB0j67rY+/yRwjEpy7nTE5e
	7f6+aaMIuVw81u/WmtKb7X5yifN7lppE+SB24ySNvsKZEtnXZryVaGQp40G5yJqk
	=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:mime-version:in-reply-to:references:from:date
	:message-id:subject:to:content-type:content-transfer-encoding;
	s=default; bh=e9EZjdko6loWC2F6Q2UPz1B9RME=; b=UR3ScCmYVVB6j5G7r
	wa3VYlNdAvQ1xfXP/0Jy2sBy6BZNGAt31Oif8WTyoBh3RGAQwS7QwA5KmfVYrGgB
	qWCGkBnL11Rwd4AsqtcYsyibEmfiQl9Rfdzx3n/JY5SGnUyTNXYJ6TKs6XkfVHsD
	E/Qz7tmbwO2OIzGTOiUPDQu3mI=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Authentication-Results:	sourceware.org; auth=none
X-Spam-SWARE-Status:	No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM,KAM_SHORT,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 spammy=Hx-languages-length:1857
X-HELO:	mail-qk1-f173.google.com
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-transfer-encoding; bh=I2GttWkShAZWucvmdCbcYZJWBwKWSzQeSETS3n4UXcg=; b=WytlAN1/5tziivo8r+3UoCSzd0JsCqYoNA9DS3lSnJQT+6Pg5Tmpqjqiizl4PcT6Ik 3Abr72m9dRpdYLTnP/gCCC107rKpLQFYigb+1BhLGJhfV/eZum/lUe7tv7/8bVVvYS7O U37DN/w8YbMSBNS3WQYx60te1DdKBeqDOYUUiPC1QK4eHP/aWMCH3LonUpZrd9pvgc0h PUD3ZBYXAzIlaxSRqY/m7H0+CZbDSquJJOcLA7EPfi21ullhKZQe6ZDD/tgarG0E15Me G3E3Ub5OFb42K7i6M36Rfsi8dAwdCsvjghEU5wita/8aV64glC1dNzgRKehDJs0kBG7S oWTw==
MIME-Version:	1.0
In-Reply-To:	<CAPhqJV0s8HHSFDbiSvCMdDo=mwR33nee91SgNB=+7kJpftWH0Q@mail.gmail.com>
References:	<CAPhqJV0s8HHSFDbiSvCMdDo=mwR33nee91SgNB=+7kJpftWH0Q AT mail DOT gmail DOT com>
From:	Csaba Raduly <rcsaba AT gmail DOT com>
Date:	Thu, 27 Sep 2018 18:53:48 +0200
Message-ID:	<CAEhDDbB1EJrmU0_8317H=kyiTV8LRo4VAu9zUDoHu3aEeQUwJA@mail.gmail.com>
Subject:	Re: make failing in custom code
To:	cygwin list <cygwin AT cygwin DOT com>
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id w8RGs2FA011318

Hi,

On Thu, Sep 27, 2018 at 4:31 PM, Tapas Mishra  wrote:
> Hi,
> I am trying to do a project  when I do a make on project code
> in cygwin environment I get following error
>
> gcc -Wall -g -c main.c -o main.o
> main.c: In function ‘main’:
> main.c:50:8: warning: unused variable ‘physmem’ [-Wunused-variable]
>   char *physmem = page_table_get_physmem(pt);
>         ^~~~~~~
> gcc -Wall -g -c page_table.c -o page_table.o
> page_table.c: In function ‘page_table_set_entry’:
> page_table.c:125:2: warning: implicit declaration of function
> ‘remap_file_pages’ [-Wimplicit-function-declaration]
>   remap_file_pages(pt->virtmem+page*PAGE_SIZE,PAGE_SIZE,0,frame,0);
>   ^~~~~~~~~~~~~~~~
> gcc -Wall -g -c disk.c -o disk.o
> gcc -Wall -g -c program.c -o program.o
> gcc main.o page_table.o disk.o program.o -o virtmem
> page_table.o: In function `page_table_set_entry':
> /home/DEEL/cs602/try1/page_table.c:125: undefined reference to
> `remap_file_pages'
> /home/DEEL/cs602/try1/page_table.c:125:(.text+0x491): relocation
> truncated to fit: R_X86_64_PC32 against undefined symbol
> `remap_file_pages'
> collect2: error: ld returned 1 exit status
> make: *** [makefile:2: virtmem] Error 1
>
> I compiled the same code on a linux instance hosted on amazon cloud
> and it compiled successfully. So this brought me to a conclusion some
> files are missing in cygwin and hence I reached here.

remap_file_pages is a Linux system call:

http://man7.org/linux/man-pages/man2/remap_file_pages.2.html

It is not implemented on Cygwin.


Csaba
-- 
You can get very substantial performance improvements
by not doing the right thing. - Scott Meyers, An Effective C++11/14 Sampler
So if you're looking for a completely portable, 100% standards-conformat way
to get the wrong information: this is what you want. - Scott Meyers (C++TDaWYK)

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

- Raw text -