Update cross-compile.md

[skip ci] See #428

Update cross-compile.md
[skip ci] See #428
3a95fafb · Andrey Mokhov · GitHub · e0bbd9fc · 3a95fafb
Unverified Commit 3a95fafb authored Oct 30, 2017 by Andrey Mokhov Committed by GitHub Oct 30, 2017
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 ## Build a cross-compiling GHC

-Our host machine is "Ubuntu 16.04.2 LTS, Linux ubuntu 4.4.0-79-generic 86_64".
+In this example, our host machine is "Ubuntu 16.04.2 LTS, Linux ubuntu 4.4.0-79-generic 86_64".

 We need to download necessary tools, including:

@@ -17,7 +17,7 @@ After all the dependencies are in place:
 - `./configure --target=arm-linux-gnueabihf`
 - `cd hadrian`
 - Modify `src/Settings.hs`, set `stage1Only` and `crossCompiling` to `True`.
- Build the compiler by e.g. `./build.cabal.sh --flavour=quickest --integer-simple --skip-configure -V -j`
+- Build the compiler by e.g. `./build.sh --flavour=quickest --integer-simple --skip-configure -V -j`

 After that, you should have built `inplace/bin/ghc-stage1` cross compiler. We will go to the next section to validate this.

@@ -32,7 +32,7 @@ main = putStrLn "Hello, world!"
 Compile it with cross-compiling GHC: `<ghc-folder>/inplace/bin/ghc-stage1 -static Main`. Note that we created a static version of it which packs together all depending libraries.

 - Install QEMU: `sudo apt-get install qemu-system-arm`
- Download `vmlinuz` (kernel) and `initrd.gz` (initial ramdisk) from mirror like https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/dists/xenial/main/installer-armhf/current/images/generic-lpae/cdrom/.
+- Download `vmlinuz` (kernel) and `initrd.gz` (initial ramdisk), e.g. from [this mirror](https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/dists/xenial/main/installer-armhf/current/images/generic-lpae/cdrom/).
 - Add the ARM Linux executable `Main` to the initial ramdisk so we can load it directly into memory. No need for real installation
  + `gunzip initrd.gz` to get `initrd`
  + `mkdir tmp2; cd tmp2; sudo cpio -id < ../initrd` to get a file system
@@ -54,4 +54,4 @@ qemu-system-arm \
    -M virt
 ```

-This will lead you to a installer interface. But we don't need to do that, so we can save ourself from the hassel of setup networks etc. We just keep `Go Back`, until see a line `Execute a shell`, and select it. Now you get a shell, go find `/usr/bin/Main` and run it!
+This will lead you to a installer interface. But we don't need to do that, so we can save ourself from the hassle of setting up networks etc. We just keep `Go Back`, until see a line `Execute a shell`, and select it. Now you get a shell, go find `/usr/bin/Main` and run it!