Module config

Serialized configuration of a build.

This module implements parsing config.toml configuration files to tweak how the build runs.

Re-exports

• pub use crate::core::config::flags::Subcommand;

Macros

• check_ci_llvm 🔒
• define_config 🔒

Structs

• Build 🔒
  TOML representation of various global build decisions.
• ChangeIdWrapper 🔒
  Since we use #[serde(deny_unknown_fields)] on TomlConfig, we need a wrapper type for the “change-id” field to parse it even if other fields are invalid. This ensures that if deserialization fails due to other fields, we can still provide the changelogs to allow developers to potentially find the reason for the failure in the logs..
• Config
  Global configuration for the entire build and/or bootstrap.
• Dist 🔒
• Install 🔒
  TOML representation of various global install decisions.
• Llvm 🔒
  TOML representation of how the LLVM build is configured.
• OptimizeVisitor 🔒
• Rust 🔒
  TOML representation of how the Rust build is configured.
• Target
  Per-target configuration stored in the global configuration structure.
• TargetSelection
• TargetSelectionList
  Newtype over Vec<TargetSelection> so we can implement custom parsing logic
• TomlConfig 🔒
  Structure of the config.toml file that configuration is read from.
• TomlTarget 🔒
  TOML representation of how each build target is configured.

Enums

• DebuginfoLevel
• DryRun
• LldMode
  LLD in bootstrap works like this:
• LlvmLibunwind
• ReplaceOpt 🔒
  Describes how to handle conflicts in merging two TomlConfig
• RustOptimize
• RustcLto
  LTO mode used for compiling rustc itself.
• RustfmtState
• SplitDebuginfo
• StringOrBool
• StringOrInt 🔒

Constants

• BUILDER_CONFIG_FILENAME 🔒
  This file is embedded in the overlay directory of the tarball sources. It is useful in scenarios where developers want to see how the tarball sources were generated.
• RUSTC_IF_UNCHANGED_ALLOWED_PATHS 🔒
  Each path in this list is considered “allowed” in the download-rustc="if-unchanged" logic. This means they can be modified and changes to these paths should never trigger a compiler build when “if-unchanged” is set.

Traits

• Merge 🔒

Functions

• check_incompatible_options_for_ci_llvm 🔒
  Compares the current Llvm options against those in the CI LLVM builder and detects any incompatible options. It does this by destructuring the Llvm instance to make sure every Llvm field is covered and not missing.
• check_incompatible_options_for_ci_rustc 🔒
  Compares the current Rust options against those in the CI rustc builder and detects any incompatible options. It does this by destructuring the Rust instance to make sure every Rust field is covered and not missing.
• format_optimize_error_msg 🔒
• set 🔒
• target_selection_list
• threads_from_config 🔒