vector support on x86 32 bit

[jszwedko]

Discussed in https://github.com/vectordotdev/vector/discussions/10220

^{Originally posted by **bmallya** December 1, 2021} Hello, In the downloads section, I did not see any off the shelf binaries available for 32 bit systems. Then I tried to look if there is any docker image in the rust embedded section which can be used to compile using `cross`, but did not find any. Is this supported?

[jszwedko]

Hi @bmallya !

You are correct, we don't currently build for i686. We do build for armv7 though, which is 32-bit, so it might not be too hard to get working.

I tried it just now by adding the following diff:

diff --git a/Cargo.toml b/Cargo.toml
index 47952cd96..7e42a0ef4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -363,6 +363,7 @@ target-x86_64-unknown-linux-musl = ["api", "api-client", "disk-buffer", "rdkafka
 target-powerpc64le-unknown-linux-gnu = ["api", "api-client", "disk-buffer", "enrichment-tables", "rdkafka-cmake", "sinks", "sources", "sources-dnstap", "transforms", "unix", "vendor-libz", "vendor-openssl", "vrl-cli", "datadog-pipelines"]
 # currently doesn't build due to lack of support for 64-bit atomics
 target-powerpc-unknown-linux-gnu = ["api", "api-client", "disk-buffer", "enrichment-tables", "rdkafka-cmake", "sinks", "sources", "sources-dnstap", "transforms", "unix", "vendor-libz", "vendor-openssl", "vrl-cli", "datadog-pipelines"]
+target-i686-unknown-linux-gnu = ["api", "api-client", "disk-buffer", "enrichment-tables", "rdkafka-cmake", "sinks", "sources", "sources-dnstap", "transforms", "unix", "vendor-libz", "vendor-openssl", "vrl-cli", "datadog-pipelines"]

 # Enables `rdkafka` dependency.
 # This feature is more portable, but requires `cmake` as build dependency. Use it if `rdkafka-plain` doesn't work.
diff --git a/scripts/cross/i686-unknown-linux-gnu.dockerfile b/scripts/cross/i686-unknown-linux-gnu.dockerfile
new file mode 100644
index 000000000..68da34d72
--- /dev/null
+++ b/scripts/cross/i686-unknown-linux-gnu.dockerfile
@@ -0,0 +1,4 @@
+FROM rustembedded/cross:i686-unknown-linux-gnu
+
+COPY bootstrap-ubuntu.sh .
+RUN ./bootstrap-ubuntu.sh

But ran into clang issues:

error: failed to run custom build command for `onig_sys v69.7.1`

Caused by:
  process didn't exit successfully: `/target/release/build/onig_sys-3f43075698c84254/build-script-build` (exit status: 101)
  --- stderr
  thread 'main' panicked at 'Unable to find libclang: "couldn't find any valid shared libraries matching: ['libclang.so', 'libclang-*.so', 'libclang.so.*', 'libclang-*.so.*'], set the `LIBCLANG_PATH` environment variable to a path where one of these files can be found (invalid: [])"', /cargo/registry/src/github.com-1ecc6299db9ec823/bindgen-0.56.0/src/lib.rs:1922:31
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

So we'll probably need to dig into that more.

[smitsr72]

We would like to use vector on a 32 bit industrial PC. Would also love to have windows 32 bit support.

[bmallya]

Reviving this ticket to see if there has been any change towards having 32 bit version available.

[jszwedko]

Not on our part. I'd love to see someone give this a shot though.

[smitsr72]

Yes still very much want a 32 bits windows version. We are a machine manufacturer. New machines will get 64 bit industrial PC's, the the existing ones out in the field are 32 bit Windows Industrial PC's. They are here for a long time. We run 1 software stack on all machines, so this basically prohibits us to use vector.

On Thu, 2 Nov 2023 at 17:03, Jesse Szwedko @.***> wrote:

Not on our part. I'd love to see someone give this a shot though.

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-- Groeten, Roland