84 lines
2.6 KiB
Text
84 lines
2.6 KiB
Text
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;;;;;
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title: Installing HLA on Archlinux
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tags: hla, archlinux, vagrant
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date: 2014-12-27 21:43
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format: md
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;;;;;
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I recently started reading
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[The Art of Assembly Language, 2nd Edition](http://www.nostarch.com/assembly2.htm).
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It uses High-Level Assembly language in its code examples and this
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requires a special compiler, or assembler, to turn your code into
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machine code.
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## Fixing the PKGBUILD
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The compiler, `hla`, is available on the Archlinux User Repository
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[here](https://aur.archlinux.org/packages/hla/). At the time of
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writing, though, that `PKGBUILD` doesn't work entirely. By default
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pacman removes all static libraries from the created packages, which
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took me a while to find out. Adding the following line to the
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`PKGBUILD` fixes it:
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options=(staticlibs)
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I also placed a comment on the AUR page, but there has been no sign
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of acknowledgment so far.
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## Running on x86_64
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After having installed the compiler I got a lot of errors compiling
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my very simple hello world application, as typed over from the
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book. The gist of them was that it couldn't create 64-bit
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executables, which isn't very surprising as HLA seems to be only
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for x86 (32-bit) architecture. Another comment on the AUR page
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helped that though. One should add the `-lmelf_i386` switch to the
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`hla` command-line. So I put in my `~/.zshrc`:
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alias hla="hla -lmelf_i386"
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This discovery only came after a few other attempts to install HLA.
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## Alternative: Using Vagrant
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Before I'd read about the `-lmelf_i386` command-line switch I was
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looking at ways to run a 32-bit operating system inside my
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Archlinux installation. There are a few options I'm familiar with:
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lxc, Docker and Vagrant.
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At first I tried to create a 32-bit Archlinux container, but the
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installation script failed, so I couldn't get that started. Then I
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went on to Vagrant, which worked pretty quickly.
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I used the `ubuntu/trusty32` box, which can be downloaded by calling:
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vagrant box add ubuntu/trusty32
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A very short `Vagrantfile`:
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# -*- mode: ruby -*-
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# vi: set ft=ruby :
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Vagrant.configure(2) do |config|
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config.vm.box = "ubuntu/trusty32"
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config.vm.provision :shell, path: "vagrant.sh"
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end
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and then the provision in `vagrant.sh`:
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wget http://www.plantation-productions.com/Webster/HighLevelAsm/HLAv2.16/linux.hla.tar.gz
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tar --directory / --extract --file linux.hla.tar.gz
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cat > /etc/profile.d/hla.sh <<EOF
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#!/usr/bin/bash
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export hlalib=/usr/hla/hlalib
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export hlainc=/usr/hla/include
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export hlatemp=/tmp
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export PATH="${PATH}:/usr/hla"
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EOF
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After that you can just call `vagrant up`, wait a while and then have
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fun playing around with HLA in an Ubuntu 14.04 environment.
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