Support for ppc64le arch.

[KeerthanaAP]

This is the error message when building logdna-agent-v2 on ppc64le

# cargo build --release -v
warning: profiles for the non root package will be ignored, specify profiles at the workspace root:
package:   /root/logdna-agent-v2/bin/Cargo.toml
workspace: /root/logdna-agent-v2/Cargo.toml
       Fresh autocfg v1.1.0
       Fresh unicode-ident v1.0.8
       Fresh proc-macro2 v1.0.56
       Fresh libc v0.2.142
       Fresh once_cell v1.17.1
       Fresh scopeguard v1.1.0
       Fresh pin-project-lite v0.2.9
       Fresh quote v1.0.26
       Fresh jobserver v0.1.26
       Fresh log v0.4.17
       Fresh bytes v1.4.0
       Fresh syn v2.0.15
       Fresh cc v1.0.79
       Fresh lock_api v0.4.9
       Fresh num_cpus v1.15.0
       Fresh serde_derive v1.0.160
       Fresh syn v1.0.109
       Fresh mio v0.8.6
       Fresh tokio-macros v2.1.0
       Fresh socket2 v0.4.9
       Fresh signal-hook-registry v1.4.1
       Fresh futures-core v0.3.28
       Fresh futures-io v0.3.28
       Fresh smallvec v1.10.0
       Fresh tracing-core v0.1.30
       Fresh futures-sink v0.3.28
   Compiling parking_lot_core v0.9.7
       Fresh libm v0.2.6
       Fresh slab v0.4.8
       Fresh tracing-attributes v0.1.24
     Running `rustc --crate-name parking_lot_core --edition=2018 /root/.cargo/registry/src/github.com-1ecc6299db9ec823/parking_lot_core-0.9.7/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 -C metadata=e69d85ef417ec950 -C extra-filename=-e69d85ef417ec950 --out-dir /root/logdna-agent-v2/target/release/deps -L dependency=/root/logdna-agent-v2/target/release/deps --extern cfg_if=/root/logdna-agent-v2/target/release/deps/libcfg_if-b86bf31c2c9c463a.rmeta --extern libc=/root/logdna-agent-v2/target/release/deps/liblibc-e8b27b4cb1f827a2.rmeta --extern smallvec=/root/logdna-agent-v2/target/release/deps/libsmallvec-e53f31acce4bddaf.rmeta --cap-lints allow`
       Fresh num-traits v0.2.15
       Fresh futures-task v0.3.28
       Fresh futures-channel v0.3.28
       Fresh tracing v0.1.37
       Fresh futures-macro v0.3.28
       Fresh pin-utils v0.1.0
       Fresh futures-util v0.3.28
       Fresh version_check v0.9.4
       Fresh pkg-config v0.3.26
       Fresh thiserror-impl v1.0.40
       Fresh crossbeam-utils v0.8.15
       Fresh thiserror v1.0.40
       Fresh http v0.2.9
       Fresh untrusted v0.7.1
   Compiling ring v0.16.20
       Fresh getrandom v0.2.9
       Fresh percent-encoding v2.2.0
       Fresh tower-service v0.3.2
     Running `/root/logdna-agent-v2/target/release/build/ring-d897c2913083f916/build-script-build`
       Fresh num-integer v0.1.45
       Fresh form_urlencoded v1.1.0
       Fresh http-body v0.4.5
       Fresh try-lock v0.2.4
       Fresh httparse v1.8.0
       Fresh futures-executor v0.3.28
       Fresh want v0.3.0
       Fresh httpdate v1.0.2
       Fresh tinyvec_macros v0.1.1
       Fresh crc32fast v1.3.2
       Fresh memchr v2.5.0
   Compiling futures v0.3.28
       Fresh miniz_oxide v0.7.1
       Fresh tinyvec v1.6.0
       Fresh rand_core v0.6.4
       Fresh base64 v0.21.0
     Running `rustc --crate-name futures --edition=2018 /root/.cargo/registry/src/github.com-1ecc6299db9ec823/futures-0.3.28/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="async-await"' --cfg 'feature="default"' --cfg 'feature="executor"' --cfg 'feature="futures-executor"' --cfg 'feature="std"' -C metadata=9ef04e9e8f5823a3 -C extra-filename=-9ef04e9e8f5823a3 --out-dir /root/logdna-agent-v2/target/release/deps -L dependency=/root/logdna-agent-v2/target/release/deps --extern futures_channel=/root/logdna-agent-v2/target/release/deps/libfutures_channel-3c1df93e066a753b.rmeta --extern futures_core=/root/logdna-agent-v2/target/release/deps/libfutures_core-0a66c35159c2acba.rmeta --extern futures_executor=/root/logdna-agent-v2/target/release/deps/libfutures_executor-6e6baf0665783dff.rmeta --extern futures_io=/root/logdna-agent-v2/target/release/deps/libfutures_io-79901ee28dc9d623.rmeta --extern futures_sink=/root/logdna-agent-v2/target/release/deps/libfutures_sink-581ee6e6d025305a.rmeta --extern futures_task=/root/logdna-agent-v2/target/release/deps/libfutures_task-7f9094347f6fc51f.rmeta --extern futures_util=/root/logdna-agent-v2/target/release/deps/libfutures_util-210af4e4fe6d9b48.rmeta --cap-lints allow`
       Fresh regex-syntax v0.6.29
       Fresh io-lifetimes v1.0.10
       Fresh rustls-pemfile v1.0.2
       Fresh unicode-normalization v0.1.22
       Fresh flate2 v1.0.26
       Fresh unicode-bidi v0.3.13
       Fresh ppv-lite86 v0.2.17
       Fresh openssl-probe v0.1.5
       Fresh rustls-native-certs v0.6.2
       Fresh rand_chacha v0.3.1
       Fresh regex-automata v0.1.10
       Fresh thread_local v1.1.7
   Compiling memoffset v0.8.0
   Compiling linked-hash-map v0.5.6
   Compiling minimal-lexical v0.2.1
   Compiling cfg-if v1.0.0
   Compiling time-macros v0.2.4
     Running `rustc --crate-name build_script_build /root/.cargo/registry/src/github.com-1ecc6299db9ec823/memoffset-0.8.0/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C debug-assertions=off --cfg 'feature="default"' -C metadata=6cdadec6f18a393b -C extra-filename=-6cdadec6f18a393b --out-dir /root/logdna-agent-v2/target/release/build/memoffset-6cdadec6f18a393b -L dependency=/root/logdna-agent-v2/target/release/deps --extern autocfg=/root/logdna-agent-v2/target/release/deps/libautocfg-9b92cc6fed07a93f.rlib --cap-lints allow`
     Running `rustc --crate-name linked_hash_map /root/.cargo/registry/src/github.com-1ecc6299db9ec823/linked-hash-map-0.5.6/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 -C metadata=298caa9fd45d31f3 -C extra-filename=-298caa9fd45d31f3 --out-dir /root/logdna-agent-v2/target/release/deps -L dependency=/root/logdna-agent-v2/target/release/deps --cap-lints allow`
     Running `rustc --crate-name minimal_lexical --edition=2018 /root/.cargo/registry/src/github.com-1ecc6299db9ec823/minimal-lexical-0.2.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C debug-assertions=off --cfg 'feature="std"' -C metadata=ba03ec18ca707555 -C extra-filename=-ba03ec18ca707555 --out-dir /root/logdna-agent-v2/target/release/deps -L dependency=/root/logdna-agent-v2/target/release/deps --cap-lints allow`
error: failed to run custom build command for `ring v0.16.20`

Caused by:
  process didn't exit successfully: `/root/logdna-agent-v2/target/release/build/ring-d897c2913083f916/build-script-build` (exit status: 101)
  --- stderr
  thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', /root/.cargo/registry/src/github.com-1ecc6299db9ec823/ring-0.16.20/build.rs:358:10

[c-nixon]

This is a known limitation of the ring crypto library which underpins rustls, there is an ongoing effort to give rustls the ability to operate over other backends, but it's not implemented yet

[KeerthanaAP]

@c-nixon Thank you for the information.
Could you share the issue id if any created for this implementation.

[clnperez]

i'm guessing it's this one: rustls/rustls#521, which seems to have made some good progress recently