X-Recipient: archive-cygwin AT delorie DOT com
X-Original-To: cygwin AT cygwin DOT com
Delivered-To: cygwin AT cygwin DOT com
DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 4B99C385842A
Authentication-Results: sourceware.org; dmarc=none (p=none dis=none)
 header.from=SystematicSw.ab.ca
Authentication-Results: sourceware.org;
 spf=none smtp.mailfrom=systematicsw.ab.ca
X-Authority-Analysis: v=2.4 cv=F+dEy4tN c=1 sm=1 tr=0 ts=61b59758
 a=T+ovY1NZ+FAi/xYICV7Bgg==:117 a=T+ovY1NZ+FAi/xYICV7Bgg==:17
 a=IkcTkHD0fZMA:10 a=94nOnFI1EgyDtX4ev68A:9 a=QEXdDO2ut3YA:10
Message-ID: <91147532-663c-de8b-4c51-0c3bce05aea9@SystematicSw.ab.ca>
Date: Sat, 11 Dec 2021 23:31:51 -0700
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101
 Thunderbird/91.4.0
Subject: Re: transplant uboot-tool(mkenvimage) to cygwin
Content-Language: en-CA
References: <b84861a07eb2494ebcd08ed9f0e63cea AT nokia-sbell DOT com>
 <4d0378ec96d84645a0ee5cf976eacd7d AT nokia-sbell DOT com>
To: cygwin AT cygwin DOT com
From: Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>
Organization: Systematic Software
In-Reply-To: <4d0378ec96d84645a0ee5cf976eacd7d@nokia-sbell.com>
X-CMAE-Envelope: MS4xfHfe68aDKHrchSwgFcsf2QHzsiUu33H2hARupSCT1hKe7s/7OBG8DGdqjzRIQQnVLBWTiJDvvAUP8w7BMfm4djOv1NsjM+EU7OOFCa1lsOCA3DxPwgCk
 fWbpTHGvpR8U6ILjC157UAsS/OMZwzVu9JVfvJW+aeh+olRnPg6BONY/5i0BIahRftXLm+uP+B3n4EOXg0vuPLbISmLl9UZD/8G4NfRSD9No3K0Nln9ojL5c
X-Spam-Status: No, score=-1165.0 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS,
 KAM_LAZY_DOMAIN_SECURITY, NICE_REPLY_A, RCVD_IN_BARRACUDACENTRAL,
 RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE,
 SPF_NONE, TXREP autolearn=no autolearn_force=no version=3.4.4
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) 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>
Reply-To: cygwin AT cygwin DOT com
Cc: "Lv, Liang \(NSB - CN/Hangzhou\)" <liang DOT lv AT nokia-sbell DOT com>
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset="us-ascii"; Format="flowed"
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>

On 2021-07-02 03:37, Lv, Liang (NSB - CN/Hangzhou) wrote:
> I find Cygwin don't support uboot-tool(mkenvimage) when I want to 
> transplant the tool, which is used to make image for flash by
> python, from linux to windows.
> But when I compile the source of uboot-tool from github, there are 
> many strange questions.
> What's the appropriate way to transplant the command to Cygwin?

It's a board and device support package which depends on board and 
device specific features and files including kernels, device trees, root 
file systems, and firmware in specific locations so can not be built in 
the Cygwin POSIX environment without adaptation:

"The development of U-Boot is closely related to Linux: some parts of
the source code originate in the Linux source tree, we have some
header files in common, and special provision has been made to
support booting of Linux images."

You could look at using a Linux emulator like WSL or VM like VirtualBox.

You may wish to look at RTEMS and other OSes which use newlib (in common 
with Cygwin) to develop similar systems.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.
[Data in binary units and prefixes, physical quantities in SI.]

-- 
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