Linux ARM / aarch64 support

[TheCycoONE]

Currently ./bootstrap-vcpkg.sh does not attempt to detect architecture, assuming x86_64 on Linux. This means that the bootstrap tools that are fetched cannot run. I see the following output in the terminal:

➜  vcpkg git:(corsixth) ./bootstrap-vcpkg.sh 
/home/stephen/github/vcpkg/scripts/bootstrap.sh: line 193: /home/stephen/github/vcpkg/downloads/tools/cmake-3.10.2-linux/cmake-3.10.2-Linux-x86_64/bin/cmake: cannot execute binary file: Exec format error
/home/stephen/github/vcpkg/scripts/bootstrap.sh: line 194: /home/stephen/github/vcpkg/downloads/tools/cmake-3.10.2-linux/cmake-3.10.2-Linux-x86_64/bin/cmake: cannot execute binary file: Exec format error
cp: cannot stat '/home/stephen/github/vcpkg/toolsrc/build.rel/vcpkg': No such file or directory

Is there interest from the project in supporting aarch64 (and maybe other architectures?)

[jarruda]

Yes indeed there is! In particular, I started out using vcpkg for a few projects with the hope that it supported ARM to make targeting the Raspberry Pi a possibility.

At the very least, it would be desirable to note this lack of architecture support in the documentation (README or readthedocs). There is no mention of x86 dependence that I could find.

[YoDaMa]

Our team is also very much interested in this feature! Would make deploying to devices significantly simpler.

[zweistein-frm2]

vcpkg can be build quite easily on a raspberry pi
First you must build cmake 3.14 from sources as the raspberry pi buster has 3.13 cmake only.
cmake-3.14 must be the default cmake.

Then simply:
cd /vcpkg # or where your vcpkg is
mkdir out
cd out
cmake -S /vcpkg/toolsrc -B /vcpkg/out
cd out
make
cd ..
cp out/vcpkg ./vcpkg

but then triplets have to be defined...

[meitiever]

build cmake-3.15 from source and install to /usr/bin and /usr/share
append -useSystemBinaries to command like bootstrap-vcpkg.sh -useSystemBinaries
and then vcpkg will ignore cmake downloading and building process.
this works for me and everything is all right now.

[bramburn]

@meitiever thanks steve

[raix]

on jetson nano ubuntu 18.04lts is using 3.10.2

[makidoll]

On Debian 10, I have to compile CMake 3.14+ from source and -useSystemBinaries works when bootstrapping. However when I run vcpkg install it'll try to download CMake for x86_64 again.

[makidoll]

This works for me for now

• ./bootstrap-vcpkg.sh -useSystemBinaries
• VCPKG_FORCE_SYSTEM_BINARIES=1 ./vcpkg install ...

[nfbyte]

Here's how I got it working:

• install vcpkg (you need to have zip, unzip, ninja, cmake)

./bootstrap-vcpkg.sh -useSystemBinaries

• add the triplet ./triplets/arm64-linux.cmake:

set(VCPKG_TARGET_ARCHITECTURE arm64)
set(VCPKG_CRT_LINKAGE dynamic)
set(VCPKG_LIBRARY_LINKAGE static)

set(VCPKG_CMAKE_SYSTEM_NAME Linux)

• add environment variables:

export VCPKG_DEFAULT_TRIPLET=arm64-linux
export VCPKG_FORCE_SYSTEM_BINARIES=1

• set VCPKG_TARGET_TRIPLET=arm64-linux when using cmake:

cmake -B [build directory] -S . -DVCPKG_TARGET_TRIPLET=arm64-linux -DCMAKE_TOOLCHAIN_FILE=[path to vcpkg]/scripts/buildsystems/vcpkg.cmake

[linquize]

Please also improve #12362

[jagrme00]

The sudo ./bootstrap-vcpkg.sh -useSystemBinaries does not work for me on aarch64 Ubuntu 16.04.
My shell hangs up when I press return. Waiting for over a half hour does not produce any output in my shell.
Can anybody help?

[advra]

The sudo ./bootstrap-vcpkg.sh -useSystemBinaries does not work for me on aarch64 Ubuntu 16.04.
My shell hangs up when I press return. Waiting for over a half hour does not produce any output in my shell.
Can anybody help?

@jagrme00 I am having the same issue with Ubuntu 20.04 shell hangs and nothing happens. Did you ever figure it out?

[linquize]

@jagrme00 why sudo?

[jagrme00]

The sudo ./bootstrap-vcpkg.sh -useSystemBinaries does not work for me on aarch64 Ubuntu 16.04.
My shell hangs up when I press return. Waiting for over a half hour does not produce any output in my shell.
Can anybody help?

@jagrme00 I am having the same issue with Ubuntu 20.04 shell hangs and nothing happens. Did you ever figure it out?

@advra Unfortunately I had no time to analyze this behavior. Since I needed only a few libraries, I built them from source with CMake.

@jagrme00 why sudo?

@linquize I'm not a linux expert, but I thought it's better to try it with sudo because I don't know what commands are executed by this script. In addition I was too lazy to look inside the script. As far as I can see it shouldn't be the reason for the problem.

The device I was using was based on a NVIDIA Tegra X2. Maybe someone got it running on this platform?

[linquize]

@jagrme00
vcpkg minimum requirement is gcc 6.
Ubuntu 16.04 has only gcc 5.3, which is not supported.

[jagrme00]

@linquize Thanks for this information.

[PhoebeHui]

Move the discussion to #17738.