[Feature Request] - Cross-compilation armv7 artifacts on CI

[wxlg1117]

Description

Create a workflow to Cross-compilation armv7 artifacts directly on GitHub (manual launch).

i try:
rustup target add armv7-unknown-linux-musleabihf and download
linker from https://musl.cc/armv7l-linux-musleabihf-cross.tgz;

[root@hk2 termscp]# rustup show
Default host: x86_64-unknown-linux-gnu
rustup home:  /root/.rustup

installed toolchains
--------------------

stable-x86_64-unknown-linux-gnu (default)
stable-x86_64-unknown-linux-musl

installed targets for active toolchain
--------------------------------------

armv7-unknown-linux-gnueabihf
armv7-unknown-linux-musleabihf
x86_64-unknown-linux-gnu
x86_64-unknown-linux-musl

active toolchain
----------------

stable-x86_64-unknown-linux-gnu (default)
rustc 1.71.0 (8ede3aae2 2023-07-12)

[root@hk2 termscp]# armv7l-linux-musleabihf-gcc --version
armv7l-linux-musleabihf-gcc (GCC) 11.2.1 20211120
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

cat .cargo/config:

[build]
target = "armv7-unknown-linux-musleabihf"
[target.armv7-unknown-linux-musleabihf]
linker = "armv7l-linux-musleabihf-gcc"

run

cargo build --target armv7-unknown-linux-musleabihf 

ande get some error:

[root@hk2 termscp]# cargo build --target armv7-unknown-linux-musleabihf
   Compiling libc v0.2.147
   Compiling autocfg v1.1.0
   Compiling proc-macro2 v1.0.63
   Compiling unicode-ident v1.0.10
   Compiling quote v1.0.29
   Compiling cfg-if v1.0.0
   Compiling syn v2.0.23
   Compiling log v0.4.19
   Compiling memchr v2.5.0
   Compiling cc v1.0.79
   Compiling version_check v0.9.4
   Compiling once_cell v1.18.0
   Compiling typenum v1.16.0
   Compiling generic-array v0.14.7
   Compiling pkg-config v0.3.27
   Compiling futures-core v0.3.28
   Compiling syn v1.0.109
   Compiling bitflags v1.3.2
   Compiling pin-project-lite v0.2.10
   Compiling serde v1.0.166
   Compiling serde_derive v1.0.166
   Compiling ring v0.16.20
   Compiling num-traits v0.2.15
error: failed to run custom build command for `ring v0.16.20`

Caused by:
  process didn't exit successfully: `/root/termscp/target/debug/build/ring-880ec8928e48f919/build-script-build` (exit status: 101)
  --- stdout
  OPT_LEVEL = Some("0")
  TARGET = Some("armv7-unknown-linux-musleabihf")
  HOST = Some("x86_64-unknown-linux-gnu")
  cargo:rerun-if-env-changed=CC_armv7-unknown-linux-musleabihf
  CC_armv7-unknown-linux-musleabihf = None
  cargo:rerun-if-env-changed=CC_armv7_unknown_linux_musleabihf
  CC_armv7_unknown_linux_musleabihf = None
  cargo:rerun-if-env-changed=TARGET_CC
  TARGET_CC = None
  cargo:rerun-if-env-changed=CC
  CC = None
  RUSTC_LINKER = Some("armv7l-linux-musleabihf-gcc")
  cargo:rerun-if-env-changed=CROSS_COMPILE
  CROSS_COMPILE = None
  cargo:rerun-if-env-changed=CFLAGS_armv7-unknown-linux-musleabihf
  CFLAGS_armv7-unknown-linux-musleabihf = None
  cargo:rerun-if-env-changed=CFLAGS_armv7_unknown_linux_musleabihf
  CFLAGS_armv7_unknown_linux_musleabihf = None
  cargo:rerun-if-env-changed=TARGET_CFLAGS
  TARGET_CFLAGS = None
  cargo:rerun-if-env-changed=CFLAGS
  CFLAGS = None
  cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
  CRATE_CC_NO_DEFAULTS = None
  DEBUG = Some("true")
  CARGO_CFG_TARGET_FEATURE = None

  --- stderr
  running "arm-linux-musleabihf-gcc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-march=armv7-a" "-mfpu=vfpv3-d16" "-I" "include" "-Wall" "-Wextra" "-pedantic" "-pedantic-errors" "-Wall" "-Wextra" "-Wcast-align" "-Wcast-qual" "-Wconversion" "-Wenum-compare" "-Wfloat-equal" "-Wformat=2" "-Winline" "-Winvalid-pch" "-Wmissing-field-initializers" "-Wmissing-include-dirs" "-Wredundant-decls" "-Wshadow" "-Wsign-compare" "-Wsign-conversion" "-Wundef" "-Wuninitialized" "-Wwrite-strings" "-fno-strict-aliasing" "-fvisibility=hidden" "-fstack-protector" "-g3" "-U_FORTIFY_SOURCE" "-DNDEBUG" "-c" "-o/root/termscp/target/armv7-unknown-linux-musleabihf/debug/build/ring-ecd836c5dd6484ee/out/aesv8-armx-linux32.o" "/root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ring-0.16.20/pregenerated/aesv8-armx-linux32.S"
  thread 'main' panicked at 'failed to execute ["arm-linux-musleabihf-gcc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-march=armv7-a" "-mfpu=vfpv3-d16" "-I" "include" "-Wall" "-Wextra" "-pedantic" "-pedantic-errors" "-Wall" "-Wextra" "-Wcast-align" "-Wcast-qual" "-Wconversion" "-Wenum-compare" "-Wfloat-equal" "-Wformat=2" "-Winline" "-Winvalid-pch" "-Wmissing-field-initializers" "-Wmissing-include-dirs" "-Wredundant-decls" "-Wshadow" "-Wsign-compare" "-Wsign-conversion" "-Wundef" "-Wuninitialized" "-Wwrite-strings" "-fno-strict-aliasing" "-fvisibility=hidden" "-fstack-protector" "-g3" "-U_FORTIFY_SOURCE" "-DNDEBUG" "-c" "-o/root/termscp/target/armv7-unknown-linux-musleabihf/debug/build/ring-ecd836c5dd6484ee/out/aesv8-armx-linux32.o" "/root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ring-0.16.20/pregenerated/aesv8-armx-linux32.S"]: No such file or directory (os error 2)', /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ring-0.16.20/build.rs:653:9
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[github-actions]

This issue is stale because it has been open for 30 days with no activity.

[veeso]

It won't work because of C libs required to build termscp.
There is a dockerfile to build