[rust-dev] Rust (Servo) Cross-Compile to ARM

Skirmantas Kligys Skirmantas.Kligys at gmail.com
Sun Jun 8 14:57:54 PDT 2014

Luqman Aden <laden at ...> writes:
> Building a Rust cross compiler that can target arm isn't too hard. You 
just need the right toolchain installed. I personally use Debian with the 
gcc-4.7-arm-linux-gnueabi package from the Emdebian repo. (I believe Ubuntu 
and other distros have similar packages). From there it's just a simple 
matter of passing the right triple to the configure script.
> ./configure --target=arm-unknown-linux-gnueabi && make
> That'll build a rustc that can target arm as well as all the libraries. 
Then you can run it like so:
> rustc --target=arm-unknown-linux-gnueabi --linker=arm-linux-gnueabi-gcc 
> That'll give you a binary, hello, which will run on arm/linux. So, that's 
the basic gist of it.

I am trying to follow these instructions and also



export PATH=$PWD/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-
cd rust
./configure --prefix=/usr/local/stow/rust-pi-20140608 --target=arm-unknown-
make -j2
sudo make install

cfg: build triple x86_64-unknown-linux-gnu
cfg: host triples x86_64-unknown-linux-gnu
cfg: target triples x86_64-unknown-linux-gnu arm-unknown-linux-gnueabihf
cfg: non-build target triples arm-unknown-linux-gnueabihf
cfg: enabling more debugging (CFG_ENABLE_DEBUG)
cfg: host for x86_64-unknown-linux-gnu is x86_64
cfg: host for arm-unknown-linux-gnueabihf is arm
cfg: os for x86_64-unknown-linux-gnu is unknown-linux-gnu
cfg: os for arm-unknown-linux-gnueabihf is unknown-linux-gnueabihf
cfg: using CC=gcc (CFG_CC)
cfg: no pdflatex found, deferring to xelatex
cfg: no xelatex found, deferring to lualatex
cfg: no lualatex found, disabling LaTeX docs
cfg: no pandoc found, omitting PDF and EPUB docs
cfg: no llnextgen found, omitting grammar-verification

A rustc gets built, but it targets Intel:

 $ rustc -C target-cpu=help hello.rs
Available CPUs for this target:

  amdfam10      - Select the amdfam10 processor.
  athlon        - Select the athlon processor.
  athlon-4      - Select the athlon-4 processor.
  athlon-fx     - Select the athlon-fx processor.
  athlon-mp     - Select the athlon-mp processor.
  athlon-tbird  - Select the athlon-tbird processor.
  athlon-xp     - Select the athlon-xp processor.
  athlon64      - Select the athlon64 processor.
  athlon64-sse3 - Select the athlon64-sse3 processor.

Any ideas?

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