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python wheels using rustc #5435

Merged
merged 49 commits into from
Oct 12, 2022
Merged

python wheels using rustc #5435

merged 49 commits into from
Oct 12, 2022

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th0ma7
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@th0ma7 th0ma7 commented Sep 20, 2022

Description

python wheels using rustc - Using another approach from #5399

Extras:

  • Update python310 to version 3.10.7 (possibly 3.10.8? https://peps.python.org/pep-0619/)
  • Update duplicity to version 0.8.23
  • Fix mysql-connector-c which now fails to build
  • As needing to update duplicity, shoot for version 1.0.1 (tested on x64-7.0, armv7-7.0, armv5-6.1)

TODO: none left

Fixes #

Checklist

  • Build rule all-supported completed successfully
  • New installation of package completed successfully
  • Package upgrade completed successfully (Manually install the package again)
  • Package functionality was tested
  • Any needed documentation is updated/created

Type of change

  • Bug fix
  • New Package
  • Package update
  • Includes small framework changes
  • This change requires a documentation update (e.g. Wiki)

@th0ma7
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th0ma7 commented Sep 20, 2022

@publicarray reading back on one of your comments #4971 (comment) : Any changes to the Dockerfile won't actually be ran unless merged to master?

@Safihre
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Safihre commented Sep 21, 2022

@publicarray reading back on one of your comments #4971 (comment) : Any changes to the Dockerfile won't actually be ran unless merged to master?

Yes, but it's also only build when it's on master, so it's not really tested.

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@publicarray reading back on one of your comments #4971 (comment) : Any changes to the Dockerfile won't actually be ran unless merged to master?

Yes, but it's also only build when it's on master, so it's not really tested.

Yea I suppose the idea here was that you do build the docker container locally first and verify it before pushing the changes to master. However you can create a docker build in your fork if that is easier. yea it's not a good idea to do docker builds in PRs as we don't want to modify the published image until the changes land in master.

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miigotu commented Sep 23, 2022

Is the rust env getting sourced?

This is how I do it in our docker file:
https://github.com/SickChill/SickChill/blob/master/contrib/docker/Dockerfile.rpi#L37

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miigotu commented Sep 29, 2022

So, I've been trying to get 32 bit arms builds working using docker buildx, and came across the same issue. There is a readdir bug in qemu for 32 bit arm that makes it's way all the way into the crossenv. This link is a docker build but I think the solution might be a similar problem in this cross toolchain. Also, rustup can't tell the architecture with an 32 bit arm architecture, so it can never find the correct compiler for arm6 and 7 and sends the objects to the wrong linker for arm 5/6

The fix for this is a mixture of the solution in the link here, and a patch to rustup I had done awhile back (I'll post that when I update the patch and test these fixes in https://github.com/miigotu/python-docker-images

matrix-org/synapse#9403 (comment)

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th0ma7 commented Sep 29, 2022

So, I've been trying to get 32 bit arms builds working using docker buildx, and came across the same issue. There is a readdir bug in qemu for 32 bit arm that makes it's way all the way into the crossenv. This link is a docker build but I think the solution might be a similar problem in this cross toolchain. Also, rustup can't tell the architecture with an 32 bit arm architecture, so it can never find the correct compiler for arm6 and 7 and sends the objects to the wrong linker for arm 5/6

That's quite an interesting catch, although, the issue is also hapening on other archs and not only armv7. I can reproduce a rather similar output using i686 (arch-evansport-7.0) and aarch64 for instance. All leading to a linking time issue.

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miigotu commented Sep 30, 2022

Yeah I have the same issue with 386/686. I think it is related.

That's part of the patch for rustup is to get it to recognize the bitness as 32, it detects a 32 bit arch at 64 bit currently. I'll go quick and see if I can find my bug report from last year.

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miigotu commented Sep 30, 2022

rust-lang/rustup#2700

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miigotu commented Sep 30, 2022

Man this is super annoying, this works locally to build armv7, but failed in github actions:
https://github.com/miigotu/python-docker-images/actions/runs/3156651360/workflow

from this dockerfile: https://github.com/miigotu/python-docker-images/blob/main/python/python-cryptography.dockerfile

docker buildx build --platform linux/arm/v7 -f python/python-cryptography.dockerfile . --progress plain --ulimit nofile=262144:262144 --output=type=local,dest=/tmp/cryptography-wheels

image

# Use distrib folder as cargo download cache
CARGO_HOME_PATH=/spksrc/distrib/cargo
ENV += CARGO_HOME=$(CARGO_HOME_PATH)
ENV += PATH=:$(CARGO_HOME_PATH)/bin/:$(PATH)
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@th0ma7 th0ma7 Sep 30, 2022

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Indeed but as the CARGO_HOME is being set to /usr/local/ therefore /usr/local/bin is automagically being in the default PATH.

This was reworked and now sits under /opt where cargo & rustup have independant directories. Theses values have been added in the default wide environment through spksrc.tc.mk and the /opt/cargo/bin to spksrc.common.mk

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miigotu commented Sep 30, 2022

Same dockerfile works locally for all of them smh
docker buildx build --platform linux/386,linux/amd64,linux/arm/v5,linux/arm/v7,linux/arm64/v8,linux/ppc64le,linux/s390x -f python/python-cryptography.dockerfile . --progress plain --ulimit nofile=262144:262144 --output=type=local,dest=wheels

cryptography-wheels.zip

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th0ma7 commented Sep 30, 2022

First thing to notice in here, the example you're refering to is using venv instead of crossenv. Something I'm not sure I understand (still ramping-up on docker), is it starting a docker in qemu where host & target are the same? Or is it cross-compiling from a x86_64 host?

Anyhow, having a few pending patches on my end and trying to build using spksrc my "updated" docker environment where the host is x86_64.

My first thing to try is, is it even cross-compiling using rust? Lets take ripgrep as an easy app to build:

# CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER="/spksrc/toolchain/syno-aarch64-7.0/work/aarch64-unknown-linux-gnu/bin/aarch64-unknown-linux-gnu-gcc" CARGO_HOME="/opt/cargo" RUSTUP_HOME="/opt/rustup" cargo install ripgrep --target=aarch64-unknown-linux-gnu --force
# file rg
rg: ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for GNU/Linux 3.7.0, with debug_info, not stripped

It works! Now let's try that using CARGO_BUILD_TARGET=aarch64-unknown-linux-gnu instead of enforcing --target:

# CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER="/spksrc/toolchain/syno-aarch64-7.0/work/aarch64-unknown-linux-gnu/bin/aarch64-unknown-linux-gnu-gcc" CARGO_BUILD_TARGET=aarch64-unknown-linux-gnu CARGO_HOME="/opt/cargo" RUSTUP_HOME="/opt/rustup" cargo install ripgrep --force
# file rg
rg: ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for GNU/Linux 3.7.0, with debug_info, not stripped

Still working! So the theory is that I have a working rustc along with a proper recognition of my target gcc as default linker and CARGO* and RUSTUP* environment variables are also recognized and functional.

Now, following your Dockerfile example, along with using host default python3, still on x86_64 host:

# python3 --version
Python 3.9.2
# apt-get update
# apt-get install python3-venv
# VENV_PATH=/opt/venv python3 -m venv $VENV_PATH --upgrade
# VENV_PATH=/opt/venv python3 -m pip install --upgrade setuptools pip
# VENV_PATH=/opt/venv python3 -m pip install --upgrade setuptools-rust wheel
# CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER="/spksrc/toolchain/syno-aarch64-7.0/work/aarch64-unknown-linux-gnu/bin/aarch64-unknown-linux-gnu-gcc" CARGO_BUILD_TARGET=aarch64-unknown-linux-gnu CARGO_HOME="/opt/cargo" RUSTUP_HOME="/opt/rustup" PYO3_CROSS_LIB_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/lib/ PYO3_CROSS_INCLUDE_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/include/ VENV_PATH=/opt/venv python3 setup.py bdist_wheel --py-limited-api=cp36

Boom! working! But hold-on, why is the wheel extension being x86_64?

# ll dist/cryptography-38.0.1-cp36-abi3-linux_x86_64.whl
-rw-r--r-- 1 root root 1214001 Sep 30 19:46 dist/cryptography-38.0.1-cp36-abi3-linux_x86_64.whl

After investigating a little further, looks like everything in the wheel file is ?OK?:

# file ./hazmat/bindings/_rust.abi3.so
./hazmat/bindings/_rust.abi3.so: ELF 64-bit LSB shared object, ARM aarch64, version 1 (SYSV), dynamically linked, with debug_info, not stripped

Now let's try out the exact same thing, this time using our host native built python3.10:

# VENV_PATH=/opt/venv /spksrc/native/python310/work-native/install/usr/local/bin/python3 -m venv $VENV_PATH --upgrade
# VENV_PATH=/opt/venv /spksrc/native/python310/work-native/install/usr/local/bin/python3 -m pip install --upgrade setuptools pip
# VENV_PATH=/opt/venv /spksrc/native/python310/work-native/install/usr/local/bin/python3 -m pip install --upgrade setuptools-rust wheel

# CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER="/spksrc/toolchain/syno-aarch64-7.0/work/aarch64-unknown-linux-gnu/bin/aarch64-unknown-linux-gnu-gcc" CARGO_BUILD_TARGET=aarch64-unknown-linux-gnu CARGO_HOME="/opt/cargo" RUSTUP_HOME="/opt/rustup" PYO3_CROSS_LIB_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/lib/ PYO3_CROSS_INCLUDE_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/include/ VENV_PATH=/opt/venv /spksrc/native/python310/work-native/install/usr/local/bin/python3 setup.py bdist_wheel --py-limited-api=cp36

Again, boom! Although it works with a few deprecation warnings:

build/temp.linux-x86_64-cpython-310/cryptography.hazmat.bindings._openssl.c: In function ‘_cffi_d_ASN1_STRING_data’:
build/temp.linux-x86_64-cpython-310/cryptography.hazmat.bindings._openssl.c:7957:3: warning: ‘ASN1_STRING_data’ is deprecated [-Wdeprecated-declarations

Let's investigate further:

# ll dist/cryptography-38.0.1-cp36-abi3-linux_x86_64.whl
-rw-r--r-- 1 root root 2040082 Sep 30 20:10 dist/cryptography-38.0.1-cp36-abi3-linux_x86_64.whl

After unziping:

# find . -name "*.so"
./cryptography/hazmat/bindings/_openssl.abi3.so
./cryptography/hazmat/bindings/_rust.abi3.so
# file ./cryptography/hazmat/bindings/_openssl.abi3.so ./cryptography/hazmat/bindings/_rust.abi3.so
./cryptography/hazmat/bindings/_openssl.abi3.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=a1db744141c71550a25dac57f63994c81be4cf90, with debug_info, not stripped
./cryptography/hazmat/bindings/_rust.abi3.so:    ELF 64-bit LSB shared object, ARM aarch64, version 1 (SYSV), dynamically linked, with debug_info, not stripped

So clearly a mismatch here. But it did built sort of "succesfully" using a venv. But clearly this wheel output is useless as having arch mismatchs at every levels. But it did demonstrated that it can build, which is already a start.

Now, challenge really is, building using a crossenv ...

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miigotu commented Sep 30, 2022

First thing to notice in here, the example you're refering to is using venv instead of crossenv. Something I'm not sure I understand (still ramping-up on docker), is it starting a docker in qemu where host & target are the same? Or is it cross-compiling from a x86_64 host?

Anyhow, having a few pending patches on my end and trying to build using spksrc my "updated" docker environment where the host is x86_64.

My first thing to try is, is it even cross-compiling using rust? Lets take ripgrep as an easy app to build:

# CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER="/spksrc/toolchain/syno-aarch64-7.0/work/aarch64-unknown-linux-gnu/bin/aarch64-unknown-linux-gnu-gcc" CARGO_HOME="/opt/cargo" RUSTUP_HOME="/opt/rustup" cargo install ripgrep --target=aarch64-unknown-linux-gnu --force
# file rg
rg: ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for GNU/Linux 3.7.0, with debug_info, not stripped

It works! Now let's try that using CARGO_BUILD_TARGET=aarch64-unknown-linux-gnu instead of enforcing --target:

# CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER="/spksrc/toolchain/syno-aarch64-7.0/work/aarch64-unknown-linux-gnu/bin/aarch64-unknown-linux-gnu-gcc" CARGO_BUILD_TARGET=aarch64-unknown-linux-gnu CARGO_HOME="/opt/cargo" RUSTUP_HOME="/opt/rustup" cargo install ripgrep --force
# file rg
rg: ELF 64-bit LSB pie executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for GNU/Linux 3.7.0, with debug_info, not stripped

Still working! So the theory is that I have a working rustc along with a proper recognition of my target gcc as default linker and CARGO* and RUSTUP* environment variables are also recognized and functional.

Now, following your Dockerfile example, along with using host default python3, still on x86_64 host:

# python3 --version
Python 3.9.2
# apt-get update
# apt-get install python3-venv
# VENV_PATH=/opt/venv python3 -m venv $VENV_PATH --upgrade
# VENV_PATH=/opt/venv python3 -m pip install --upgrade setuptools pip
# VENV_PATH=/opt/venv python3 -m pip install --upgrade setuptools-rust wheel
# CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER="/spksrc/toolchain/syno-aarch64-7.0/work/aarch64-unknown-linux-gnu/bin/aarch64-unknown-linux-gnu-gcc" CARGO_BUILD_TARGET=aarch64-unknown-linux-gnu CARGO_HOME="/opt/cargo" RUSTUP_HOME="/opt/rustup" PYO3_CROSS_LIB_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/lib/ PYO3_CROSS_INCLUDE_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/include/ VENV_PATH=/opt/venv python3 setup.py bdist_wheel --py-limited-api=cp36

Boom! working! But hold-on, why is the wheel extension being x86_64?

# ll dist/cryptography-38.0.1-cp36-abi3-linux_x86_64.whl
-rw-r--r-- 1 root root 1214001 Sep 30 19:46 dist/cryptography-38.0.1-cp36-abi3-linux_x86_64.whl

After investigating a little further, looks like everything in the wheel file is ?OK?:

# file ./hazmat/bindings/_rust.abi3.so
./hazmat/bindings/_rust.abi3.so: ELF 64-bit LSB shared object, ARM aarch64, version 1 (SYSV), dynamically linked, with debug_info, not stripped

Now let's try out the exact same thing, this time using our host native built python3.10:

# VENV_PATH=/opt/venv /spksrc/native/python310/work-native/install/usr/local/bin/python3 -m venv $VENV_PATH --upgrade
# VENV_PATH=/opt/venv /spksrc/native/python310/work-native/install/usr/local/bin/python3 -m pip install --upgrade setuptools pip
# VENV_PATH=/opt/venv /spksrc/native/python310/work-native/install/usr/local/bin/python3 -m pip install --upgrade setuptools-rust wheel

# CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER="/spksrc/toolchain/syno-aarch64-7.0/work/aarch64-unknown-linux-gnu/bin/aarch64-unknown-linux-gnu-gcc" CARGO_BUILD_TARGET=aarch64-unknown-linux-gnu CARGO_HOME="/opt/cargo" RUSTUP_HOME="/opt/rustup" PYO3_CROSS_LIB_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/lib/ PYO3_CROSS_INCLUDE_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/include/ VENV_PATH=/opt/venv /spksrc/native/python310/work-native/install/usr/local/bin/python3 setup.py bdist_wheel --py-limited-api=cp36

Again, boom! Although it works with a few deprecation warnings:

build/temp.linux-x86_64-cpython-310/cryptography.hazmat.bindings._openssl.c: In function ‘_cffi_d_ASN1_STRING_data’:
build/temp.linux-x86_64-cpython-310/cryptography.hazmat.bindings._openssl.c:7957:3: warning: ‘ASN1_STRING_data’ is deprecated [-Wdeprecated-declarations

Let's investigate further:

# ll dist/cryptography-38.0.1-cp36-abi3-linux_x86_64.whl
-rw-r--r-- 1 root root 2040082 Sep 30 20:10 dist/cryptography-38.0.1-cp36-abi3-linux_x86_64.whl

After unziping:

# find . -name "*.so"
./cryptography/hazmat/bindings/_openssl.abi3.so
./cryptography/hazmat/bindings/_rust.abi3.so
# file ./cryptography/hazmat/bindings/_openssl.abi3.so ./cryptography/hazmat/bindings/_rust.abi3.so
./cryptography/hazmat/bindings/_openssl.abi3.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=a1db744141c71550a25dac57f63994c81be4cf90, with debug_info, not stripped
./cryptography/hazmat/bindings/_rust.abi3.so:    ELF 64-bit LSB shared object, ARM aarch64, version 1 (SYSV), dynamically linked, with debug_info, not stripped

So clearly a mismatch here. But it did built sort of "succesfully" using a venv. But clearly this wheel output is useless as having arch mismatchs at every levels. But it did demonstrated that it can build, which is already a start.

Now, challenge really is, building using a crossenv ...

I'm not building these with spksrc at all, because it isn't necessary. All pyo3 wheels built on a system with libc (non-alpine) will run on the same architecture they were built for, regardless of the host.

Buildx is a crossenv. The GitHub actions runs in an x86_64 host container always (ubuntu-latest is Ubuntu:jammy right now I believe). Buildx runs each build in a qemu cross ENV either determined by the --platform argument or possibly overridden on the FROM line of the dockerfile.

Venv is a totally different thing, that just isolates the python environment from the system python environment, so there are no conflicts with the system python packages or contamination of the build/install of what you are building. That could be left out entirely from the dockerfile and it would work, it just isn't best practices.

So essentially, if this build worked in GitHub actions, very easily we could build every cross wheel in GitHub actions directly and then pass them into the spksrc build and build spksrc without needing rust at all.

It was just trying to prove that it isn't spksrc toolchain that is the problem, there is something wonky with GitHub actions that's making it not possible to build 32 bit builds (since I can build the same action locally but it fails to find rustc on actions). I'm going to break it back into cargo fetch on amd64 and then build on the --platform=$TARGETPLATFORM stage and see if that fixes it on GitHub actions.

If I get this built, I will create releases containing all of the built wheels, and you can reference them with --find-links and always avoid compile errors (and reduce storage usage and build time) on spksrc.

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miigotu commented Sep 30, 2022

I'll add the build log later, it absolutely is cross compiling the rust and c extensions.

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miigotu commented Oct 1, 2022

Once cryptography 35.0.0+ is built, you could install poetry right to the crossenv and that would be great.

It will also require tomli up until python 3.11, where tomllib has been added to python stdlib https://docs.python.org/3.11/library/tomllib.html

I'm not sure of flit dependencies, but that is the other major tool used for managing dependencies with pyproject.toml. I think it needs either toml or toml-w

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th0ma7 commented Oct 1, 2022

I gave it a shot on both Docker and a native VM to see if this isn't something in the host detection or similar... Sadly same result.

It's really easy to trigger with this PR, once the build is complete (e.g. make arch-armv7-7.0) do the following. First setup your PATH to point towards the crossenv first:

$ export PATH=/spksrc/spk/python310/work-aarch64-7.0/crossenv/cross/bin:/spksrc/spk/python310/work-aarch64-7.0/crossenv/cross/bin:$PATH

Then build:

$ CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER="/spksrc/toolchain/syno-aarch64-7.0/work/aarch64-unknown-linux-gnu/bin/aarch64-unknown-linux-gnu-gcc" \
CARGO_BUILD_TARGET=aarch64-unknown-linux-gnu \
CARGO_HOME="/opt/cargo" RUSTUP_HOME="/opt/rustup" \
PYO3_CROSS_LIB_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/lib/ \
PYO3_CROSS_INCLUDE_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/include/ \
python3 setup.py bdist_wheel --py-limited-api=cp36

Interestingly enough it gets a little farther using RUSTFLAGS such as:

RUSTFLAGS="--target=aarch64-unknown-linux-gnu -Clinker=/spksrc/toolchain/syno-aarch64-7.0/work/aarch64-unknown-linux-gnu/bin/aarch64-unknown-linux-gnu-gcc" \
CARGO_HOME="/opt/cargo" RUSTUP_HOME="/opt/rustup" \
PYO3_CROSS_LIB_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/lib/ \
PYO3_CROSS_INCLUDE_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/include/ \
python3 setup.py bdist_wheel --py-limited-api=cp36

A call using crossenv pip will also result with the same outcome:

CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER="/spksrc/toolchain/syno-aarch64-7.0/work/aarch64-unknown-linux-gnu/bin/aarch64-unknown-linux-gnu-gcc" \
CARGO_BUILD_TARGET=aarch64-unknown-linux-gnu \
CARGO_HOME="/opt/cargo" RUSTUP_HOME="/opt/rustup" \
PYO3_CROSS_LIB_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/lib/ \
PYO3_CROSS_INCLUDE_DIR=/spksrc/spk/python310/work-aarch64-7.0/install/var/packages/python310/target/include/ \
pip install cryptography==38.0.1

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miigotu commented Oct 1, 2022

It's just crazy that I can build them with buildx locally but not on GitHub, with the same sources, commands, environment, and everything.

I'm going to try another method to compile right in the actions, rather than inside a dockerfile.

I can set up python in the action, set up rust toolchain (with multiple targets), and build/compile with setuptools-rust.

Now whether that gets around the bug in qemu (or GitHub, I'm not 100% sure the culprit yet), I don't know.

I suspect it could be because the action runner itself is in a container, and then we run another container inside that. Which I expect is why when I run the buildx command on my host machine it works, but on GitHub it doesn't. There's really no other difference between how I run here and there.

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miigotu commented Oct 1, 2022

I imagine my next attempt to look something like this:

actions/setup-python (matrix with python 3.7-3.11-dev)
Then something similar to this:
https://github.com/actions-rs/example/blob/master/.github/workflows/cross_compile.yml
Then-
run: |
pip download --no-deps :all: cryptography
unzip
cd and python setup.py bdist_wheel --py-limited-abi=cp36 cryptography

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miigotu commented Oct 1, 2022

@th0ma7 seems someone has already done what I was thinking, check this out: https://github.com/PyO3/setuptools-rust/pull/185/files

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th0ma7 commented Oct 1, 2022

I imagine my next attempt to look something like this:

actions/setup-python (matrix with python 3.7-3.11-dev) Then something similar to this: https://github.com/actions-rs/example/blob/master/.github/workflows/cross_compile.yml Then- run: | pip download --no-deps :all: cryptography unzip cd and python setup.py bdist_wheel --py-limited-abi=cp36 cryptography

You can already do something close to this by using cross/cryptography which in turns doesn't use pip for building. You simply have to add it to DEPENDS variable of spk/python310 for a start. Although the github workflow won't be the same.

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messense commented Oct 1, 2022

Cross-post from PyO3/setuptools-rust#294

This circles back to benfogle/crossenv#65, after removing LIBRARY_PATH env var from /spksrc/spk/python310/work-aarch64-7.0/crossenv/cross/bin/python and adding PYO3_CROSS_LIB_DIR=/spksrc/spk/python310/work-aarch64-7.0/crossenv/lib env var for pyo3, the build succeeded for me locally.

@th0ma7
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th0ma7 commented Oct 1, 2022

Good news! I got it working PyO3/setuptools-rust#294 (comment)

I have to think about the various code changes I need to do to have a working fix (or pending a new setuptools-rust release) but it does work both using cross and pip from a crossenv... there is light at the end of the tunnel finally!

@miigotu
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miigotu commented Oct 1, 2022

Awesome, I hope that same thing fixes a straight build in gh actions too. Maybe this fix will bring back prebuilt wheels for arm32 and ppc64le

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th0ma7 commented Oct 2, 2022

@hgy59 got a working PR to generate rust-based wheels. I still have a few details to polish but overall code is looking good.

The real thing in here it the updated docker image. I propose pushing it into a different PR which in turn would allow me to fully test things in this one in particular (as I can't using github-action until it's merged to master, although I tested it manually).

Changes to mention related to the Docker image:

  • Bumped to Debian 11 (e.g. stable)
  • Installation by default of cargo/rustc environment

I did a lot of build testing and overall things is looking good. Although I'm sure there will be things to adjust from migrating to Debian 11 resulting in a few bumps down the road that I'm confident we can address afterwards.

Thoughts?

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th0ma7 commented Oct 9, 2022

@publicarray examining the build errors it does use the latest Docker image. There's just a few details pending that I'm now fixing within the python310 build itself. Otherwise all is good, thnx.

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miigotu commented Oct 10, 2022

Build passed! Great work!

@th0ma7 th0ma7 merged commit acd9a36 into SynoCommunity:master Oct 12, 2022
@th0ma7 th0ma7 deleted the rustc-wheels branch October 12, 2022 23:19
th0ma7 added a commit to th0ma7/spksrc that referenced this pull request Oct 24, 2022
th0ma7 added a commit that referenced this pull request Oct 28, 2022
* cross-rust.mk: Fix regular build post PR #5435

* finalize rust fix

- remove unused code

Co-authored-by: hgy59 <hpgy59@gmail.com>
@hgy59 hgy59 mentioned this pull request Dec 23, 2022
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5 participants