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CeGCC on modern linux

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Karpour Page Icon Posted 2022-01-29 12:52 AM
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So I just stumbled upon this: http://max.kellermann.name/projects/cegcc/

There are precompiled binaries for old Debian, but what's more interesting is that this comes with a nice build script that should in theory allow you to build this updated version of CeGCC on any modern Linux distro

I gave it a try, here are the steps

 
cd ~ 
sudo apt install texinfo flex bison libmpc-dev 
git clone git://github.com/MaxKellermann/cegcc-build 
cd cegcc-build 
git submodule update --init 
sudo mkdir /opt/cegcc 
sudo chown karpour:karpour /opt/cegcc 
mkdir /tmp/cegcc-build 
cd cegcc-build 
./build.sh --prefix=/opt/cegcc 


The packages texinfo, flex, bison, libmpc-dev are required, but if you previously built gcc they're possibly already installed.

I'll update with results once it's done building. It sure takes a while!

[EDIT]

It worked! I now have arm-mingw32ce on current Ubuntu inside WSL

Edited by Karpour 2022-01-29 1:54 AM
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C:Amie Page Icon Posted 2022-01-29 6:29 AM
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That's cool. Nice find. Are you using this to build the cab-info tool for Linux?
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Karpour Page Icon Posted 2022-01-29 10:37 AM
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No, this is mingw32 targeting Windows CE!

Just to try, I want to try compiling my cabinfo tool for Windows CE, though I've been told that glibc is not 100% implemented with this build, so I'll see whether it works out
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C:Amie Page Icon Posted 2022-01-29 11:49 AM
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Ah, would be interesting to see if it can. We can put it in the SCL if it does!
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stingraze Page Icon Posted 2022-01-29 12:46 PM
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Quote
Karpour - 2022-01-29 9:52 AM

So I just stumbled upon this: http://max.kellermann.name/projects/cegcc/

There are precompiled binaries for old Debian, but what's more interesting is that this comes with a nice build script that should in theory allow you to build this updated version of CeGCC on any modern Linux distro

I gave it a try, here are the steps

 
cd ~ 
sudo apt install texinfo flex bison libmpc-dev 
git clone git://github.com/MaxKellermann/cegcc-build 
cd cegcc-build 
git submodule update --init 
sudo mkdir /opt/cegcc 
sudo chown karpour:karpour /opt/cegcc 
mkdir /tmp/cegcc-build 
cd cegcc-build 
./build.sh --prefix=/opt/cegcc 


The packages texinfo, flex, bison, libmpc-dev are required, but if you previously built gcc they're possibly already installed.

I'll update with results once it's done building. It sure takes a while!

[EDIT]

It worked! I now have arm-mingw32ce on current Ubuntu inside WSL

Thanks for the info, will try it out soon on my environment.

Update: Compiling now under Ubuntu 20.04 on VirtualBox.

Edited by stingraze 2022-01-29 1:12 PM




(compiling-cegcc.jpg)



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stingraze Page Icon Posted 2022-01-29 2:32 PM
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Yay. Got CeGCC working on Ubuntu 20.04 under Virtualbox.

It compiled the test source code from the tutorial I wrote several years ago which ran on Ubuntu 16.04.
I didn't try testing out the .exe, but should work fine.



(cegcc-ubuntu-20.04.jpg)



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Attachments cegcc-ubuntu-20.04.jpg (71KB - 3 downloads)
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Karpour Page Icon Posted 2022-01-29 3:17 PM
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Awesome! I managed to compile wcepeinfo for windows CE and then use the linux build of wcepeinfo to analyze wcepeinfo.exe

It segfaulted, because I naively assumed that PEs always include a resource directory, which my compiles one didn't, I need to add one with windres I assume. My mingw experience is very limited, but I'm positive I can compile Windows CE versions of my POSIX tools

Other caveats: putc doesn't work, but can be replaced by fputc, and perror and strerror aren't supported at all. Probably a lot more, but that's what I noticed and worked around
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stingraze Page Icon Posted 2022-01-29 3:19 PM
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Thanks!
Will be playing with this during the weekends and my spare time.
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Karpour Page Icon Posted 2022-01-30 1:29 AM
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Soo I tried running wcepeinfo on my Jornada 720 using cmd.exe

The good news: it doesn't crash

The bad news: There's no output.

I think this is because Windows CE does not really have CLI applications, so simply writing something to stdout doesn't do anything.
I guess if I wanted to make a Windows CE version of this app I'd have to go the GUI route or figure out how to write things out in cmd.exe
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stingraze Page Icon Posted 2022-01-30 2:41 AM
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Yep. Maybe remove the gui option?
I've read here that an application called Pocket Console makes you be able to read output... not sure if it works on Handheld PC as it's for Pocket PC 2000 / 2002. Maybe using Redgear will provide the solution? Not sure.

http://moyashi.air-nifty.com/hitori/2007/03/windows_mobilec_2418.ht... (Japanese blog)

https://symbolictools.de/ (Pocket Console site)

Edited by stingraze 2022-01-30 2:54 AM
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stingraze Page Icon Posted 2022-01-30 5:49 AM
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Update:

Good news! I found an application called "DOS Window" (in Japanese)
It should work with English and other OS, but it provides a DOS Window / console for Handheld PC.

It's available for H/PC 2000 and Sigmarion 3 + other Pocket PC etc. devices.
http://www.fermes-soft.com/dmo_download.htm

The thing is, the "printf" function works, and it outputs to the DOS Window.

Actually though, I tried later and cmd.exe on Windows CE .NET 4.1 supports printf.
If you are using other things to output to stdout, maybe you can convert it to printf.

I think you only need to import stdio.h by
#include <stdio.h>
and write printf regularly with return 0; Sample:
 
#include <windows.h>  
#include <stdio.h> 
int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nCmdShow)  
{   
	  printf("hello"; 
	  return 0; 
 
}  


-stingraze

Edited by stingraze 2022-01-30 6:36 AM




(dos-window.JPG)



(cmd-exe.JPG)



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Attachments cmd-exe.JPG (153KB - 0 downloads)
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Karpour Page Icon Posted 2022-01-30 10:21 AM
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Oh neat! Not sure why I don't get output on CE3.0

Could you try running this and see if you can get any output? If there are no arguments, it should just print the usage instructions.



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stingraze Page Icon Posted 2022-01-30 12:14 PM
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Yep, it's working!

I tried opening like

 wcepcinfo.exe APPNAME.exe


but it says "Failed to open file". hmm.


Edited by stingraze 2022-01-30 12:20 PM




(cmd-wcepcinfo.jpg)



(dos-window-wcepcinfo.jpg)



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Attachments dos-window-wcepcinfo.jpg (141KB - 0 downloads)
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Karpour Page Icon Posted 2022-01-30 12:42 PM
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Oh, that was unexpected! So it seems on CE3.0 cmd.exe the output doesn't work because printf isn't supported or something?

Maybe the reason it can't read the file because Windows CE possibly gives the arguments as UTF-16 string, not sure about that, would have to try around for that.

Either way, it's great that compiling this for CE using mingw32ce works without issue
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Alt Bass Page Icon Posted 2022-01-30 9:24 PM
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The problem with stdout can be that Windows is treating Console output and stdout differently, on NT kernel as well. Can't really describe the issue exactly, just try WriteConsole instead.
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