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Added cross_compile examples
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‎.bazelci/presubmit.yml‎

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working_directory: examples/compile_opt
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build_targets:
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- "//..."
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# TODO: https://github.com/bazelbuild/rules_rust/issues/2075
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# cross_compile_zig:
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# name: Cross compile example with Zig
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# platform: ubuntu2204
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# working_directory: examples/cross_compile_zig
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# build_targets:
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# - "//..."
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cross_compile_linux:
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name: Cross compile example on Linux
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platform: ubuntu2204
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working_directory: examples/cross_compile
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shell_commands:
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- sed -i 's/_FORCE_DISABLE_CC_TOOLCHAIN = False/_FORCE_DISABLE_CC_TOOLCHAIN = True/' ../../rust/private/utils.bzl
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test_flags:
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- "--keep_going"
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test_targets:
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- "//..."
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cross_compile_macos:
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name: Cross compile example on MacOS
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platform: macos_arm64
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working_directory: examples/cross_compile
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shell_commands:
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- sed -i '' 's/_FORCE_DISABLE_CC_TOOLCHAIN = False/_FORCE_DISABLE_CC_TOOLCHAIN = True/' ../../rust/private/utils.bzl
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test_flags:
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- "--keep_going"
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test_targets:
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- "//..."
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cross_compile_windows:
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name: Cross compile example on Windows
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platform: windows
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working_directory: examples/cross_compile
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batch_commands:
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- powershell -Command "(Get-Content rust/private/utils.bzl) -replace '_FORCE_DISABLE_CC_TOOLCHAIN = False', '_FORCE_DISABLE_CC_TOOLCHAIN = True' | Set-Content ../../rust/private/utils.bzl"
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test_flags:
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- "--keep_going"
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test_targets:
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- "//..."
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cross_compile_musl_macos_to_linux:
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name: Cross compile example Musl from macOS to Linux
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platform: macos_arm64
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working_directory: examples/cross_compile_musl
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build_targets:
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- "//..."
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test_targets:
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- "//..."
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cross_compile_musl_linux_to_linux:
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- "//:all"
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test_targets:
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- "//..."
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# TODO: https://github.com/bazelbuild/rules_rust/issues/2075
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# cross_compile_zig:
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# name: Cross compile example with Zig
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# platform: ubuntu2204
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# working_directory: examples/cross_compile_zig
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# build_targets:
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# - "//..."
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example_ffi_linux:
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platform: ubuntu2204
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working_directory: examples/ffi

‎examples/cross_compile/.bazelrc‎

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###############################################################################
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## Bazel Configuration Flags
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##
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## `.bazelrc` is a Bazel configuration file.
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## https://bazel.build/docs/best-practices#bazelrc-file
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###############################################################################
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# https://bazel.build/reference/command-line-reference#flag--enable_platform_specific_config
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common --enable_platform_specific_config
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# Enable the only currently supported report type
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# https://bazel.build/reference/command-line-reference#flag--combined_report
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coverage --combined_report=lcov
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# Avoid fully cached builds reporting no coverage and failing CI
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# https://bazel.build/reference/command-line-reference#flag--experimental_fetch_all_coverage_outputs
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coverage --experimental_fetch_all_coverage_outputs
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# Required for some of the tests
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# https://bazel.build/reference/command-line-reference#flag--experimental_cc_shared_library
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common --experimental_cc_shared_library
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###############################################################################
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## Unique configuration groups
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###############################################################################
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# Enable use of the nightly toolchains.
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build:nightly --@rules_rust//rust/toolchain/channel=nightly
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# Enable rustfmt for all targets in the workspace
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build:rustfmt --aspects=@rules_rust//rust:defs.bzl%rustfmt_aspect
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build:rustfmt --output_groups=+rustfmt_checks
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# Enable clippy for all targets in the workspace
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build:clippy --aspects=@rules_rust//rust:defs.bzl%rust_clippy_aspect
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build:clippy --output_groups=+clippy_checks
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# Enable unpretty for all targets in the workspace
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build:unpretty --aspects=@rules_rust//rust:defs.bzl%rust_unpretty_aspect
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build:unpretty --output_groups=+rust_unpretty
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# `unpretty` requires the nightly toolchain. See tracking issue:
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# https://github.com/rust-lang/rust/issues/43364
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build:unpretty --config=nightly
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###############################################################################
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## Incompatibility flags
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###############################################################################
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# https://github.com/bazelbuild/bazel/issues/8195
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build --incompatible_disallow_empty_glob=true
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# https://github.com/bazelbuild/bazel/issues/12821
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build --nolegacy_external_runfiles
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# https://github.com/bazelbuild/bazel/issues/23043.
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build --incompatible_autoload_externally=
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###############################################################################
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## Bzlmod
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###############################################################################
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# A configuration for disabling bzlmod.
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common:no-bzlmod --noenable_bzlmod --enable_workspace
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# Disable the bzlmod lockfile, so we don't accidentally commit MODULE.bazel.lock
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common --lockfile_mode=off
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###############################################################################
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## Custom user flags
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##
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## This should always be the last thing in the `.bazelrc` file to ensure
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## consistent behavior when setting flags in that file as `.bazelrc` files are
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## evaluated top to bottom.
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###############################################################################
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try-import %workspace%/user.bazelrc

‎examples/cross_compile/.gitignore‎

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/bazel-*
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user.bazelrc

‎examples/cross_compile/BUILD.bazel‎

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load("@rules_rust//rust:rust_binary.bzl", "rust_binary")
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load("@rules_rust//rust:rust_library.bzl", "rust_library")
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load("//tools:infer_test.bzl", "infer_test")
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PLATFORMS = [
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"aarch64-apple-darwin",
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"aarch64-unknown-linux-musl",
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"wasm32-wasip1",
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"x86_64-unknown-linux-musl",
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# TODO: Windows requires additional libraries at link time for
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# cross-compilation. A workaround is needed.
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"aarch64-pc-windows-msvc",
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"x86_64-pc-windows-msvc",
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]
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rust_library(
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name = "secrets",
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srcs = ["src/lib.rs"],
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edition = "2024",
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)
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[
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rust_binary(
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name = "cross_compile_{}".format(platform),
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srcs = ["src/main.rs"],
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edition = "2024",
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platform = "//platforms:{}".format(platform),
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deps = [":secrets"],
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)
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for platform in PLATFORMS
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]
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[
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infer_test(
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name = "cross_compile_{}_infer_test".format(platform),
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file = ":cross_compile_{}".format(platform),
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type = {
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"aarch64-apple-darwin": "application/x-mach-binary",
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"aarch64-pc-windows-msvc": "application/vnd.microsoft.portable-executable",
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"aarch64-unknown-linux-musl": "application/x-executable",
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"wasm32-wasip1": "application/wasm",
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"x86_64-pc-windows-msvc": "application/vnd.microsoft.portable-executable",
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"x86_64-unknown-linux-musl": "application/x-executable",
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}.get(platform, platform),
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)
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for platform in PLATFORMS
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]

‎examples/cross_compile/Cargo.lock‎

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‎examples/cross_compile/Cargo.toml‎

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[package]
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name = "cross_compile_example"
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version = "0.1.0"
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edition = "2024"
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[dependencies]
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infer = "0.19.0"

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