#cross-compiling

#Go on Raspberry Pi: simple cross-compiling #golang #raspberrypi

Go – or Golang if you prefer – is a powerful programming language, applicable to virtually any platform, from single-board computers (SBCs) such as the Raspberry Pi to supercomputer clusters.

I tend to work at the lower end of that scale. And I was motivated to check out Go because it has a reputation for being fast – unlike, say, Python – while not requiring the hairy-chested self-flagellation…

cross-compiling BusyBox is a piece of cake

http://www.busybox.net/FAQ.html

http://landley.net/aboriginal/downloads/binaries

The FAQ told me where to get a ready-made cross-compiler. Within the untarred busybox sources I ran make menuconfig; make; make CONFIG_PREFIX=target_root_dir, then I ftp-ed the statically linked busybox to my target system, and halas!, it works.

Alright, menuconfig needs to know the prefix of the gcc etc., like…

How to: Error "gnu/stubs-32.h: No such file or directory" while compiling Nachos source code

Error "gnu/stubs-32.h: No such file or directory" while compiling Nachos source code

I am trying to install Nachos on my laptop and I have Ubuntu 11.04 on the laptop.

The code is in C and so to build it I assume I will need cross compiler. This is where my problem is. I downloaded the source code of the MIPS cross compiler using the command

wget http://mll.csie.ntu.edu.tw/course/os_f08/assignme…

Anyway, I've done doing the craziest port of recent times - at the same time GCC to Clang and from waf 1.5 to 1.6.

Quite a bit of quirks to work around.

waf has changed a lot internally, and from occasional backtraces I still see that I'm using compatibility mode somewhere. Oh well, one day when I'm bored...

Clang is also full of quirks. First, I had to build a cross-gcc for it anyway, because otherwise it totally refuses to link or assemble anything. Second, the freestanding standard C headers are not quite finished it seems - stdint.h for example spits out about 20-30 warnings about redefined macros, so I had to disable -Werror for now just to get it to compile. Third, the generated code, obviously, doesn't run. I got only first couple functions of kickstart bootloader to work in bochs, after that it just GPFs. Now if it keeps raining tomorrow like today, I'll certainly will go and look what happens there, otherwise it might have to wait until next weekend (actually, in two weeks).