llvm dev - Apr 2014 - [LLVMdev] Proposal: AArch64/ARM64 merge from EuroLLVM

> - Inline ASM (I think Eric said at the Hackers Lab that he might be
> willing to do this)
I am, yes.
> - For others who want to help test, compiling and running your
> codebases on QEMU (no crypto extensions)
Some reasonable description of how this works would be awesome.
>
> - Feature parity - to the level found in the ARM64 and AArch64 backends
today
As a note this should definitely be "Today", as in the day you sent
the email/had the meeting/etc. No new work should be considered part
of the final sign off - basically a gentle chide for people to stop
putting new features into the existing AArch64 backend :)

-eric

Hi Eric,

> > - For others who want to help test, compiling and running your
> > codebases on QEMU (no crypto extensions)
>
> Some reasonable description of how this works would be awesome.
>
Try the followings, to set up QEMU for AArch64...

# On ubuntu 13.10, start from here

git clone git://git.qemu.org/qemu.git

cd qemu

git submodule update --init pixman

git submodule update --init dtc



# install some tools

sudo apt-get install libglib2.0-dev

sudo apt-get install autoconf

sudo apt-get install libtool



# build & install qemu

mkdir build

../qemu/configure --target-list=aarch64-softmmu,aarch64-linux-user

make

sudo make install



# Drop attached file to binfmts folder

sudo apt-get install binfmt-support

sudo cp qemu-aarch64 /usr/share/binfmts

sudo update-binfmts --import qemu-aarch64

# If you don't have linaro tool chain,

# please download
http://releases.linaro.org/latest/components/toolchain/binaries/gcc-linaro-aarch64-linux-gnu-4.8-2014.03_linux.tar.xz


# after unzip, please do the following copy

cp ~/gcc-linaro-aarch64/aarch64-linux-gnu/lib/*
~/gcc-linaro-aarch64/aarch64-linux-gnu/libc/lib/aarch64-linux-gnu/


#
Then y
You need to set up correct sysroot path here, e.g.

# SYSROOT_PATH=/home/
your_home_folder
/gcc-linaro-aarch64/aarch64-linux-gnu/libc

export QEMU_LD_PREFIX=$SYSROOT_PATH



# Get here, Done!



Try to run the followings to verify qemu works...



$ cat tt
t

.c

#include <stdio.h>

int main(){printf("OK\n");}

$ aarch64-linux-gnu-gcc ttt.c

$ ./a.out

OK

Thanks,
-Jiangning
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Nifty, thanks!

-eric

On Sun, Apr 13, 2014 at 11:30 PM, Jiangning Liu <liujiangning1 at
gmail.com> wrote:
> Hi Eric,
>>
>> > - For others who want to help test, compiling and running your
>> > codebases on QEMU (no crypto extensions)
>>
>> Some reasonable description of how this works would be awesome.
>
>
> Try the followings, to set up QEMU for AArch64...
>
> # On ubuntu 13.10, start from here
>
> git clone git://git.qemu.org/qemu.git
>
> cd qemu
>
> git submodule update --init pixman
>
> git submodule update --init dtc
>
>
>
> # install some tools
>
> sudo apt-get install libglib2.0-dev
>
> sudo apt-get install autoconf
>
> sudo apt-get install libtool
>
>
>
> # build & install qemu
>
> mkdir build
>
> ../qemu/configure --target-list=aarch64-softmmu,aarch64-linux-user
>
> make
>
> sudo make install
>
>
>
> # Drop attached file to binfmts folder
>
> sudo apt-get install binfmt-support
>
> sudo cp qemu-aarch64 /usr/share/binfmts
>
> sudo update-binfmts --import qemu-aarch64
>
> # If you don't have linaro tool chain,
>
> # please download
>
http://releases.linaro.org/latest/components/toolchain/binaries/gcc-linaro-aarch64-linux-gnu-4.8-2014.03_linux.tar.xz
>
> # after unzip, please do the following copy
>
> cp ~/gcc-linaro-aarch64/aarch64-linux-gnu/lib/*
> ~/gcc-linaro-aarch64/aarch64-linux-gnu/libc/lib/aarch64-linux-gnu/
>
>
> #
>
> Then y
> You need to set up correct sysroot path here, e.g.
>
> # SYSROOT_PATH=/home/
>
> your_home_folder
> /gcc-linaro-aarch64/aarch64-linux-gnu/libc
>
> export QEMU_LD_PREFIX=$SYSROOT_PATH
>
>
>
> # Get here, Done!
>
>
>
> Try to run the followings to verify qemu works...
>
>
>
> $ cat tt
>
> t
> .c
>
> #include <stdio.h>
>
> int main(){printf("OK\n");}
>
> $ aarch64-linux-gnu-gcc ttt.c
>
> $ ./a.out
>
> OK
>
> Thanks,
> -Jiangning
>