| use crate::config::*; |
| |
| use crate::early_error; |
| use crate::lint; |
| use crate::search_paths::SearchPath; |
| use crate::utils::NativeLibraryKind; |
| |
| use rustc_target::spec::TargetTriple; |
| use rustc_target::spec::{LinkerFlavor, MergeFunctions, PanicStrategy, RelroLevel}; |
| |
| use rustc_feature::UnstableFeatures; |
| use rustc_span::edition::Edition; |
| |
| use getopts; |
| |
| use std::collections::BTreeMap; |
| |
| use std::collections::hash_map::DefaultHasher; |
| use std::hash::Hasher; |
| use std::path::PathBuf; |
| use std::str; |
| |
| macro_rules! hash_option { |
| ($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, [UNTRACKED]) => {{}}; |
| ($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, [TRACKED]) => {{ |
| if $sub_hashes |
| .insert(stringify!($opt_name), $opt_expr as &dyn dep_tracking::DepTrackingHash) |
| .is_some() |
| { |
| panic!("duplicate key in CLI DepTrackingHash: {}", stringify!($opt_name)) |
| } |
| }}; |
| } |
| |
| macro_rules! top_level_options { |
| (pub struct Options { $( |
| $opt:ident : $t:ty [$dep_tracking_marker:ident $($warn_val:expr, $warn_text:expr)*], |
| )* } ) => ( |
| #[derive(Clone)] |
| pub struct Options { |
| $(pub $opt: $t),* |
| } |
| |
| impl Options { |
| pub fn dep_tracking_hash(&self) -> u64 { |
| let mut sub_hashes = BTreeMap::new(); |
| $({ |
| hash_option!($opt, |
| &self.$opt, |
| &mut sub_hashes, |
| [$dep_tracking_marker $($warn_val, |
| $warn_text, |
| self.error_format)*]); |
| })* |
| let mut hasher = DefaultHasher::new(); |
| dep_tracking::stable_hash(sub_hashes, |
| &mut hasher, |
| self.error_format); |
| hasher.finish() |
| } |
| } |
| ); |
| } |
| |
| // The top-level command-line options struct. |
| // |
| // For each option, one has to specify how it behaves with regard to the |
| // dependency tracking system of incremental compilation. This is done via the |
| // square-bracketed directive after the field type. The options are: |
| // |
| // [TRACKED] |
| // A change in the given field will cause the compiler to completely clear the |
| // incremental compilation cache before proceeding. |
| // |
| // [UNTRACKED] |
| // Incremental compilation is not influenced by this option. |
| // |
| // If you add a new option to this struct or one of the sub-structs like |
| // `CodegenOptions`, think about how it influences incremental compilation. If in |
| // doubt, specify [TRACKED], which is always "correct" but might lead to |
| // unnecessary re-compilation. |
| top_level_options!( |
| pub struct Options { |
| // The crate config requested for the session, which may be combined |
| // with additional crate configurations during the compile process. |
| crate_types: Vec<CrateType> [TRACKED], |
| optimize: OptLevel [TRACKED], |
| // Include the `debug_assertions` flag in dependency tracking, since it |
| // can influence whether overflow checks are done or not. |
| debug_assertions: bool [TRACKED], |
| debuginfo: DebugInfo [TRACKED], |
| lint_opts: Vec<(String, lint::Level)> [TRACKED], |
| lint_cap: Option<lint::Level> [TRACKED], |
| describe_lints: bool [UNTRACKED], |
| output_types: OutputTypes [TRACKED], |
| search_paths: Vec<SearchPath> [UNTRACKED], |
| libs: Vec<(String, Option<String>, Option<NativeLibraryKind>)> [TRACKED], |
| maybe_sysroot: Option<PathBuf> [UNTRACKED], |
| |
| target_triple: TargetTriple [TRACKED], |
| |
| test: bool [TRACKED], |
| error_format: ErrorOutputType [UNTRACKED], |
| |
| // If `Some`, enable incremental compilation, using the given |
| // directory to store intermediate results. |
| incremental: Option<PathBuf> [UNTRACKED], |
| |
| debugging_opts: DebuggingOptions [TRACKED], |
| prints: Vec<PrintRequest> [UNTRACKED], |
| // Determines which borrow checker(s) to run. This is the parsed, sanitized |
| // version of `debugging_opts.borrowck`, which is just a plain string. |
| borrowck_mode: BorrowckMode [UNTRACKED], |
| cg: CodegenOptions [TRACKED], |
| externs: Externs [UNTRACKED], |
| crate_name: Option<String> [TRACKED], |
| // An optional name to use as the crate for std during std injection, |
| // written `extern crate name as std`. Defaults to `std`. Used by |
| // out-of-tree drivers. |
| alt_std_name: Option<String> [TRACKED], |
| // Indicates how the compiler should treat unstable features. |
| unstable_features: UnstableFeatures [TRACKED], |
| |
| // Indicates whether this run of the compiler is actually rustdoc. This |
| // is currently just a hack and will be removed eventually, so please |
| // try to not rely on this too much. |
| actually_rustdoc: bool [TRACKED], |
| |
| // Specifications of codegen units / ThinLTO which are forced as a |
| // result of parsing command line options. These are not necessarily |
| // what rustc was invoked with, but massaged a bit to agree with |
| // commands like `--emit llvm-ir` which they're often incompatible with |
| // if we otherwise use the defaults of rustc. |
| cli_forced_codegen_units: Option<usize> [UNTRACKED], |
| cli_forced_thinlto_off: bool [UNTRACKED], |
| |
| // Remap source path prefixes in all output (messages, object files, debug, etc.). |
| remap_path_prefix: Vec<(PathBuf, PathBuf)> [UNTRACKED], |
| |
| edition: Edition [TRACKED], |
| |
| // `true` if we're emitting JSON blobs about each artifact produced |
| // by the compiler. |
| json_artifact_notifications: bool [TRACKED], |
| |
| pretty: Option<PpMode> [UNTRACKED], |
| } |
| ); |
| |
| /// Defines all `CodegenOptions`/`DebuggingOptions` fields and parsers all at once. The goal of this |
| /// macro is to define an interface that can be programmatically used by the option parser |
| /// to initialize the struct without hardcoding field names all over the place. |
| /// |
| /// The goal is to invoke this macro once with the correct fields, and then this macro generates all |
| /// necessary code. The main gotcha of this macro is the `cgsetters` module which is a bunch of |
| /// generated code to parse an option into its respective field in the struct. There are a few |
| /// hand-written parsers for parsing specific types of values in this module. |
| macro_rules! options { |
| ($struct_name:ident, $setter_name:ident, $defaultfn:ident, |
| $buildfn:ident, $prefix:expr, $outputname:expr, |
| $stat:ident, $mod_desc:ident, $mod_set:ident, |
| $($opt:ident : $t:ty = ( |
| $init:expr, |
| $parse:ident, |
| [$dep_tracking_marker:ident $(($dep_warn_val:expr, $dep_warn_text:expr))*], |
| $desc:expr) |
| ),* ,) => |
| ( |
| #[derive(Clone)] |
| pub struct $struct_name { $(pub $opt: $t),* } |
| |
| pub fn $defaultfn() -> $struct_name { |
| $struct_name { $($opt: $init),* } |
| } |
| |
| pub fn $buildfn(matches: &getopts::Matches, error_format: ErrorOutputType) -> $struct_name |
| { |
| let mut op = $defaultfn(); |
| for option in matches.opt_strs($prefix) { |
| let mut iter = option.splitn(2, '='); |
| let key = iter.next().unwrap(); |
| let value = iter.next(); |
| let option_to_lookup = key.replace("-", "_"); |
| let mut found = false; |
| for &(candidate, setter, opt_type_desc, _) in $stat { |
| if option_to_lookup != candidate { continue } |
| if !setter(&mut op, value) { |
| match (value, opt_type_desc) { |
| (Some(..), None) => { |
| early_error(error_format, &format!("{} option `{}` takes no \ |
| value", $outputname, key)) |
| } |
| (None, Some(type_desc)) => { |
| early_error(error_format, &format!("{0} option `{1}` requires \ |
| {2} ({3} {1}=<value>)", |
| $outputname, key, |
| type_desc, $prefix)) |
| } |
| (Some(value), Some(type_desc)) => { |
| early_error(error_format, &format!("incorrect value `{}` for {} \ |
| option `{}` - {} was expected", |
| value, $outputname, |
| key, type_desc)) |
| } |
| (None, None) => panic!() |
| } |
| } |
| found = true; |
| break; |
| } |
| if !found { |
| early_error(error_format, &format!("unknown {} option: `{}`", |
| $outputname, key)); |
| } |
| } |
| return op; |
| } |
| |
| impl dep_tracking::DepTrackingHash for $struct_name { |
| fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) { |
| let mut sub_hashes = BTreeMap::new(); |
| $({ |
| hash_option!($opt, |
| &self.$opt, |
| &mut sub_hashes, |
| [$dep_tracking_marker $($dep_warn_val, |
| $dep_warn_text, |
| error_format)*]); |
| })* |
| dep_tracking::stable_hash(sub_hashes, hasher, error_format); |
| } |
| } |
| |
| pub type $setter_name = fn(&mut $struct_name, v: Option<&str>) -> bool; |
| pub const $stat: &[(&str, $setter_name, Option<&str>, &str)] = |
| &[ $( (stringify!($opt), $mod_set::$opt, $mod_desc::$parse, $desc) ),* ]; |
| |
| #[allow(non_upper_case_globals, dead_code)] |
| mod $mod_desc { |
| pub const parse_bool: Option<&str> = None; |
| pub const parse_opt_bool: Option<&str> = |
| Some("one of: `y`, `yes`, `on`, `n`, `no`, or `off`"); |
| pub const parse_string: Option<&str> = Some("a string"); |
| pub const parse_string_push: Option<&str> = Some("a string"); |
| pub const parse_pathbuf_push: Option<&str> = Some("a path"); |
| pub const parse_opt_string: Option<&str> = Some("a string"); |
| pub const parse_opt_pathbuf: Option<&str> = Some("a path"); |
| pub const parse_list: Option<&str> = Some("a space-separated list of strings"); |
| pub const parse_opt_list: Option<&str> = Some("a space-separated list of strings"); |
| pub const parse_opt_comma_list: Option<&str> = Some("a comma-separated list of strings"); |
| pub const parse_threads: Option<&str> = Some("a number"); |
| pub const parse_uint: Option<&str> = Some("a number"); |
| pub const parse_passes: Option<&str> = |
| Some("a space-separated list of passes, or `all`"); |
| pub const parse_opt_uint: Option<&str> = |
| Some("a number"); |
| pub const parse_panic_strategy: Option<&str> = |
| Some("either `unwind` or `abort`"); |
| pub const parse_relro_level: Option<&str> = |
| Some("one of: `full`, `partial`, or `off`"); |
| pub const parse_sanitizer: Option<&str> = |
| Some("one of: `address`, `leak`, `memory` or `thread`"); |
| pub const parse_sanitizer_list: Option<&str> = |
| Some("comma separated list of sanitizers"); |
| pub const parse_sanitizer_memory_track_origins: Option<&str> = None; |
| pub const parse_linker_flavor: Option<&str> = |
| Some(::rustc_target::spec::LinkerFlavor::one_of()); |
| pub const parse_optimization_fuel: Option<&str> = |
| Some("crate=integer"); |
| pub const parse_unpretty: Option<&str> = |
| Some("`string` or `string=string`"); |
| pub const parse_treat_err_as_bug: Option<&str> = |
| Some("either no value or a number bigger than 0"); |
| pub const parse_lto: Option<&str> = |
| Some("either a boolean (`yes`, `no`, `on`, `off`, etc), `thin`, \ |
| `fat`, or omitted"); |
| pub const parse_linker_plugin_lto: Option<&str> = |
| Some("either a boolean (`yes`, `no`, `on`, `off`, etc), \ |
| or the path to the linker plugin"); |
| pub const parse_switch_with_opt_path: Option<&str> = |
| Some("an optional path to the profiling data output directory"); |
| pub const parse_merge_functions: Option<&str> = |
| Some("one of: `disabled`, `trampolines`, or `aliases`"); |
| pub const parse_symbol_mangling_version: Option<&str> = |
| Some("either `legacy` or `v0` (RFC 2603)"); |
| } |
| |
| #[allow(dead_code)] |
| mod $mod_set { |
| use super::{$struct_name, Passes, Sanitizer, LtoCli, LinkerPluginLto, SwitchWithOptPath, |
| SymbolManglingVersion}; |
| use rustc_target::spec::{LinkerFlavor, MergeFunctions, PanicStrategy, RelroLevel}; |
| use std::path::PathBuf; |
| use std::str::FromStr; |
| |
| $( |
| pub fn $opt(cg: &mut $struct_name, v: Option<&str>) -> bool { |
| $parse(&mut cg.$opt, v) |
| } |
| )* |
| |
| fn parse_bool(slot: &mut bool, v: Option<&str>) -> bool { |
| match v { |
| Some(..) => false, |
| None => { *slot = true; true } |
| } |
| } |
| |
| fn parse_opt_bool(slot: &mut Option<bool>, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { |
| match s { |
| "n" | "no" | "off" => { |
| *slot = Some(false); |
| } |
| "y" | "yes" | "on" => { |
| *slot = Some(true); |
| } |
| _ => { return false; } |
| } |
| |
| true |
| }, |
| None => { *slot = Some(true); true } |
| } |
| } |
| |
| fn parse_opt_string(slot: &mut Option<String>, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { *slot = Some(s.to_string()); true }, |
| None => false, |
| } |
| } |
| |
| fn parse_opt_pathbuf(slot: &mut Option<PathBuf>, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { *slot = Some(PathBuf::from(s)); true }, |
| None => false, |
| } |
| } |
| |
| fn parse_string(slot: &mut String, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { *slot = s.to_string(); true }, |
| None => false, |
| } |
| } |
| |
| fn parse_string_push(slot: &mut Vec<String>, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { slot.push(s.to_string()); true }, |
| None => false, |
| } |
| } |
| |
| fn parse_pathbuf_push(slot: &mut Vec<PathBuf>, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { slot.push(PathBuf::from(s)); true }, |
| None => false, |
| } |
| } |
| |
| fn parse_list(slot: &mut Vec<String>, v: Option<&str>) |
| -> bool { |
| match v { |
| Some(s) => { |
| slot.extend(s.split_whitespace().map(|s| s.to_string())); |
| true |
| }, |
| None => false, |
| } |
| } |
| |
| fn parse_opt_list(slot: &mut Option<Vec<String>>, v: Option<&str>) |
| -> bool { |
| match v { |
| Some(s) => { |
| let v = s.split_whitespace().map(|s| s.to_string()).collect(); |
| *slot = Some(v); |
| true |
| }, |
| None => false, |
| } |
| } |
| |
| fn parse_opt_comma_list(slot: &mut Option<Vec<String>>, v: Option<&str>) |
| -> bool { |
| match v { |
| Some(s) => { |
| let v = s.split(',').map(|s| s.to_string()).collect(); |
| *slot = Some(v); |
| true |
| }, |
| None => false, |
| } |
| } |
| |
| fn parse_threads(slot: &mut usize, v: Option<&str>) -> bool { |
| match v.and_then(|s| s.parse().ok()) { |
| Some(0) => { *slot = ::num_cpus::get(); true }, |
| Some(i) => { *slot = i; true }, |
| None => false |
| } |
| } |
| |
| fn parse_uint(slot: &mut usize, v: Option<&str>) -> bool { |
| match v.and_then(|s| s.parse().ok()) { |
| Some(i) => { *slot = i; true }, |
| None => false |
| } |
| } |
| |
| fn parse_opt_uint(slot: &mut Option<usize>, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { *slot = s.parse().ok(); slot.is_some() } |
| None => { *slot = None; false } |
| } |
| } |
| |
| fn parse_passes(slot: &mut Passes, v: Option<&str>) -> bool { |
| match v { |
| Some("all") => { |
| *slot = Passes::All; |
| true |
| } |
| v => { |
| let mut passes = vec![]; |
| if parse_list(&mut passes, v) { |
| *slot = Passes::Some(passes); |
| true |
| } else { |
| false |
| } |
| } |
| } |
| } |
| |
| fn parse_panic_strategy(slot: &mut Option<PanicStrategy>, v: Option<&str>) -> bool { |
| match v { |
| Some("unwind") => *slot = Some(PanicStrategy::Unwind), |
| Some("abort") => *slot = Some(PanicStrategy::Abort), |
| _ => return false |
| } |
| true |
| } |
| |
| fn parse_relro_level(slot: &mut Option<RelroLevel>, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { |
| match s.parse::<RelroLevel>() { |
| Ok(level) => *slot = Some(level), |
| _ => return false |
| } |
| }, |
| _ => return false |
| } |
| true |
| } |
| |
| fn parse_sanitizer(slot: &mut Option<Sanitizer>, v: Option<&str>) -> bool { |
| if let Some(Ok(s)) = v.map(str::parse) { |
| *slot = Some(s); |
| true |
| } else { |
| false |
| } |
| } |
| |
| fn parse_sanitizer_list(slot: &mut Vec<Sanitizer>, v: Option<&str>) -> bool { |
| if let Some(v) = v { |
| for s in v.split(',').map(str::parse) { |
| if let Ok(s) = s { |
| if !slot.contains(&s) { |
| slot.push(s); |
| } |
| } else { |
| return false; |
| } |
| } |
| true |
| } else { |
| false |
| } |
| } |
| |
| fn parse_sanitizer_memory_track_origins(slot: &mut usize, v: Option<&str>) -> bool { |
| match v.map(|s| s.parse()) { |
| None => { |
| *slot = 2; |
| true |
| } |
| Some(Ok(i)) if i <= 2 => { |
| *slot = i; |
| true |
| } |
| _ => { |
| false |
| } |
| } |
| } |
| |
| fn parse_linker_flavor(slote: &mut Option<LinkerFlavor>, v: Option<&str>) -> bool { |
| match v.and_then(LinkerFlavor::from_str) { |
| Some(lf) => *slote = Some(lf), |
| _ => return false, |
| } |
| true |
| } |
| |
| fn parse_optimization_fuel(slot: &mut Option<(String, u64)>, v: Option<&str>) -> bool { |
| match v { |
| None => false, |
| Some(s) => { |
| let parts = s.split('=').collect::<Vec<_>>(); |
| if parts.len() != 2 { return false; } |
| let crate_name = parts[0].to_string(); |
| let fuel = parts[1].parse::<u64>(); |
| if fuel.is_err() { return false; } |
| *slot = Some((crate_name, fuel.unwrap())); |
| true |
| } |
| } |
| } |
| |
| fn parse_unpretty(slot: &mut Option<String>, v: Option<&str>) -> bool { |
| match v { |
| None => false, |
| Some(s) if s.split('=').count() <= 2 => { |
| *slot = Some(s.to_string()); |
| true |
| } |
| _ => false, |
| } |
| } |
| |
| fn parse_treat_err_as_bug(slot: &mut Option<usize>, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { *slot = s.parse().ok().filter(|&x| x != 0); slot.unwrap_or(0) != 0 } |
| None => { *slot = Some(1); true } |
| } |
| } |
| |
| fn parse_lto(slot: &mut LtoCli, v: Option<&str>) -> bool { |
| if v.is_some() { |
| let mut bool_arg = None; |
| if parse_opt_bool(&mut bool_arg, v) { |
| *slot = if bool_arg.unwrap() { |
| LtoCli::Yes |
| } else { |
| LtoCli::No |
| }; |
| return true |
| } |
| } |
| |
| *slot = match v { |
| None => LtoCli::NoParam, |
| Some("thin") => LtoCli::Thin, |
| Some("fat") => LtoCli::Fat, |
| Some(_) => return false, |
| }; |
| true |
| } |
| |
| fn parse_linker_plugin_lto(slot: &mut LinkerPluginLto, v: Option<&str>) -> bool { |
| if v.is_some() { |
| let mut bool_arg = None; |
| if parse_opt_bool(&mut bool_arg, v) { |
| *slot = if bool_arg.unwrap() { |
| LinkerPluginLto::LinkerPluginAuto |
| } else { |
| LinkerPluginLto::Disabled |
| }; |
| return true |
| } |
| } |
| |
| *slot = match v { |
| None => LinkerPluginLto::LinkerPluginAuto, |
| Some(path) => LinkerPluginLto::LinkerPlugin(PathBuf::from(path)), |
| }; |
| true |
| } |
| |
| fn parse_switch_with_opt_path(slot: &mut SwitchWithOptPath, v: Option<&str>) -> bool { |
| *slot = match v { |
| None => SwitchWithOptPath::Enabled(None), |
| Some(path) => SwitchWithOptPath::Enabled(Some(PathBuf::from(path))), |
| }; |
| true |
| } |
| |
| fn parse_merge_functions(slot: &mut Option<MergeFunctions>, v: Option<&str>) -> bool { |
| match v.and_then(|s| MergeFunctions::from_str(s).ok()) { |
| Some(mergefunc) => *slot = Some(mergefunc), |
| _ => return false, |
| } |
| true |
| } |
| |
| fn parse_symbol_mangling_version( |
| slot: &mut SymbolManglingVersion, |
| v: Option<&str>, |
| ) -> bool { |
| *slot = match v { |
| Some("legacy") => SymbolManglingVersion::Legacy, |
| Some("v0") => SymbolManglingVersion::V0, |
| _ => return false, |
| }; |
| true |
| } |
| } |
| ) } |
| |
| options! {CodegenOptions, CodegenSetter, basic_codegen_options, |
| build_codegen_options, "C", "codegen", |
| CG_OPTIONS, cg_type_desc, cgsetters, |
| ar: Option<String> = (None, parse_opt_string, [UNTRACKED], |
| "this option is deprecated and does nothing"), |
| linker: Option<PathBuf> = (None, parse_opt_pathbuf, [UNTRACKED], |
| "system linker to link outputs with"), |
| link_arg: Vec<String> = (vec![], parse_string_push, [UNTRACKED], |
| "a single extra argument to append to the linker invocation (can be used several times)"), |
| link_args: Option<Vec<String>> = (None, parse_opt_list, [UNTRACKED], |
| "extra arguments to append to the linker invocation (space separated)"), |
| link_dead_code: bool = (false, parse_bool, [UNTRACKED], |
| "don't let linker strip dead code (turning it on can be used for code coverage)"), |
| lto: LtoCli = (LtoCli::Unspecified, parse_lto, [TRACKED], |
| "perform LLVM link-time optimizations"), |
| target_cpu: Option<String> = (None, parse_opt_string, [TRACKED], |
| "select target processor (`rustc --print target-cpus` for details)"), |
| target_feature: String = (String::new(), parse_string, [TRACKED], |
| "target specific attributes. (`rustc --print target-features` for details). \ |
| This feature is unsafe."), |
| passes: Vec<String> = (Vec::new(), parse_list, [TRACKED], |
| "a list of extra LLVM passes to run (space separated)"), |
| llvm_args: Vec<String> = (Vec::new(), parse_list, [TRACKED], |
| "a list of arguments to pass to LLVM (space separated)"), |
| save_temps: bool = (false, parse_bool, [UNTRACKED], |
| "save all temporary output files during compilation"), |
| rpath: bool = (false, parse_bool, [UNTRACKED], |
| "set rpath values in libs/exes"), |
| overflow_checks: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "use overflow checks for integer arithmetic"), |
| no_prepopulate_passes: bool = (false, parse_bool, [TRACKED], |
| "don't pre-populate the pass manager with a list of passes"), |
| no_vectorize_loops: bool = (false, parse_bool, [TRACKED], |
| "don't run the loop vectorization optimization passes"), |
| no_vectorize_slp: bool = (false, parse_bool, [TRACKED], |
| "don't run LLVM's SLP vectorization pass"), |
| soft_float: bool = (false, parse_bool, [TRACKED], |
| "use soft float ABI (*eabihf targets only)"), |
| prefer_dynamic: bool = (false, parse_bool, [TRACKED], |
| "prefer dynamic linking to static linking"), |
| no_integrated_as: bool = (false, parse_bool, [TRACKED], |
| "use an external assembler rather than LLVM's integrated one"), |
| no_redzone: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "disable the use of the redzone"), |
| relocation_model: Option<String> = (None, parse_opt_string, [TRACKED], |
| "choose the relocation model to use (`rustc --print relocation-models` for details)"), |
| code_model: Option<String> = (None, parse_opt_string, [TRACKED], |
| "choose the code model to use (`rustc --print code-models` for details)"), |
| metadata: Vec<String> = (Vec::new(), parse_list, [TRACKED], |
| "metadata to mangle symbol names with"), |
| extra_filename: String = (String::new(), parse_string, [UNTRACKED], |
| "extra data to put in each output filename"), |
| codegen_units: Option<usize> = (None, parse_opt_uint, [UNTRACKED], |
| "divide crate into N units to optimize in parallel"), |
| remark: Passes = (Passes::Some(Vec::new()), parse_passes, [UNTRACKED], |
| "print remarks for these optimization passes (space separated, or \"all\")"), |
| no_stack_check: bool = (false, parse_bool, [UNTRACKED], |
| "the `--no-stack-check` flag is deprecated and does nothing"), |
| debuginfo: Option<usize> = (None, parse_opt_uint, [TRACKED], |
| "debug info emission level, 0 = no debug info, 1 = line tables only, \ |
| 2 = full debug info with variable and type information"), |
| opt_level: Option<String> = (None, parse_opt_string, [TRACKED], |
| "optimize with possible levels 0-3, s, or z"), |
| force_frame_pointers: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "force use of the frame pointers"), |
| debug_assertions: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "explicitly enable the `cfg(debug_assertions)` directive"), |
| inline_threshold: Option<usize> = (None, parse_opt_uint, [TRACKED], |
| "set the threshold for inlining a function (default: 225)"), |
| panic: Option<PanicStrategy> = (None, parse_panic_strategy, |
| [TRACKED], "panic strategy to compile crate with"), |
| incremental: Option<String> = (None, parse_opt_string, [UNTRACKED], |
| "enable incremental compilation"), |
| default_linker_libraries: Option<bool> = (None, parse_opt_bool, [UNTRACKED], |
| "allow the linker to link its default libraries"), |
| linker_flavor: Option<LinkerFlavor> = (None, parse_linker_flavor, [UNTRACKED], |
| "linker flavor"), |
| linker_plugin_lto: LinkerPluginLto = (LinkerPluginLto::Disabled, |
| parse_linker_plugin_lto, [TRACKED], |
| "generate build artifacts that are compatible with linker-based LTO."), |
| profile_generate: SwitchWithOptPath = (SwitchWithOptPath::Disabled, |
| parse_switch_with_opt_path, [TRACKED], |
| "compile the program with profiling instrumentation"), |
| profile_use: Option<PathBuf> = (None, parse_opt_pathbuf, [TRACKED], |
| "use the given `.profdata` file for profile-guided optimization"), |
| } |
| |
| options! {DebuggingOptions, DebuggingSetter, basic_debugging_options, |
| build_debugging_options, "Z", "debugging", |
| DB_OPTIONS, db_type_desc, dbsetters, |
| codegen_backend: Option<String> = (None, parse_opt_string, [TRACKED], |
| "the backend to use"), |
| verbose: bool = (false, parse_bool, [UNTRACKED], |
| "in general, enable more debug printouts"), |
| span_free_formats: bool = (false, parse_bool, [UNTRACKED], |
| "when debug-printing compiler state, do not include spans"), // o/w tests have closure@path |
| identify_regions: bool = (false, parse_bool, [UNTRACKED], |
| "make unnamed regions display as '# (where # is some non-ident unique id)"), |
| borrowck: Option<String> = (None, parse_opt_string, [UNTRACKED], |
| "select which borrowck is used (`mir` or `migrate`)"), |
| time_passes: bool = (false, parse_bool, [UNTRACKED], |
| "measure time of each rustc pass"), |
| time: bool = (false, parse_bool, [UNTRACKED], |
| "measure time of rustc processes"), |
| time_llvm_passes: bool = (false, parse_bool, [UNTRACKED], |
| "measure time of each LLVM pass"), |
| input_stats: bool = (false, parse_bool, [UNTRACKED], |
| "gather statistics about the input"), |
| asm_comments: bool = (false, parse_bool, [TRACKED], |
| "generate comments into the assembly (may change behavior)"), |
| verify_llvm_ir: bool = (false, parse_bool, [TRACKED], |
| "verify LLVM IR"), |
| borrowck_stats: bool = (false, parse_bool, [UNTRACKED], |
| "gather borrowck statistics"), |
| no_landing_pads: bool = (false, parse_bool, [TRACKED], |
| "omit landing pads for unwinding"), |
| fewer_names: bool = (false, parse_bool, [TRACKED], |
| "reduce memory use by retaining fewer names within compilation artifacts (LLVM-IR)"), |
| meta_stats: bool = (false, parse_bool, [UNTRACKED], |
| "gather metadata statistics"), |
| print_link_args: bool = (false, parse_bool, [UNTRACKED], |
| "print the arguments passed to the linker"), |
| print_llvm_passes: bool = (false, parse_bool, [UNTRACKED], |
| "prints the LLVM optimization passes being run"), |
| ast_json: bool = (false, parse_bool, [UNTRACKED], |
| "print the AST as JSON and halt"), |
| // We default to 1 here since we want to behave like |
| // a sequential compiler for now. This'll likely be adjusted |
| // in the future. Note that -Zthreads=0 is the way to get |
| // the num_cpus behavior. |
| threads: usize = (1, parse_threads, [UNTRACKED], |
| "use a thread pool with N threads"), |
| ast_json_noexpand: bool = (false, parse_bool, [UNTRACKED], |
| "print the pre-expansion AST as JSON and halt"), |
| ls: bool = (false, parse_bool, [UNTRACKED], |
| "list the symbols defined by a library crate"), |
| save_analysis: bool = (false, parse_bool, [UNTRACKED], |
| "write syntax and type analysis (in JSON format) information, in \ |
| addition to normal output"), |
| print_region_graph: bool = (false, parse_bool, [UNTRACKED], |
| "prints region inference graph. \ |
| Use with RUST_REGION_GRAPH=help for more info"), |
| parse_only: bool = (false, parse_bool, [UNTRACKED], |
| "parse only; do not compile, assemble, or link"), |
| dual_proc_macros: bool = (false, parse_bool, [TRACKED], |
| "load proc macros for both target and host, but only link to the target"), |
| no_codegen: bool = (false, parse_bool, [TRACKED], |
| "run all passes except codegen; no output"), |
| treat_err_as_bug: Option<usize> = (None, parse_treat_err_as_bug, [TRACKED], |
| "treat error number `val` that occurs as bug"), |
| report_delayed_bugs: bool = (false, parse_bool, [TRACKED], |
| "immediately print bugs registered with `delay_span_bug`"), |
| external_macro_backtrace: bool = (false, parse_bool, [UNTRACKED], |
| "show macro backtraces even for non-local macros"), |
| teach: bool = (false, parse_bool, [TRACKED], |
| "show extended diagnostic help"), |
| terminal_width: Option<usize> = (None, parse_opt_uint, [UNTRACKED], |
| "set the current terminal width"), |
| panic_abort_tests: bool = (false, parse_bool, [TRACKED], |
| "support compiling tests with panic=abort"), |
| continue_parse_after_error: bool = (false, parse_bool, [TRACKED], |
| "attempt to recover from parse errors (experimental)"), |
| dep_tasks: bool = (false, parse_bool, [UNTRACKED], |
| "print tasks that execute and the color their dep node gets (requires debug build)"), |
| incremental: Option<String> = (None, parse_opt_string, [UNTRACKED], |
| "enable incremental compilation (experimental)"), |
| incremental_queries: bool = (true, parse_bool, [UNTRACKED], |
| "enable incremental compilation support for queries (experimental)"), |
| incremental_info: bool = (false, parse_bool, [UNTRACKED], |
| "print high-level information about incremental reuse (or the lack thereof)"), |
| incremental_dump_hash: bool = (false, parse_bool, [UNTRACKED], |
| "dump hash information in textual format to stdout"), |
| incremental_verify_ich: bool = (false, parse_bool, [UNTRACKED], |
| "verify incr. comp. hashes of green query instances"), |
| incremental_ignore_spans: bool = (false, parse_bool, [UNTRACKED], |
| "ignore spans during ICH computation -- used for testing"), |
| instrument_mcount: bool = (false, parse_bool, [TRACKED], |
| "insert function instrument code for mcount-based tracing"), |
| dump_dep_graph: bool = (false, parse_bool, [UNTRACKED], |
| "dump the dependency graph to $RUST_DEP_GRAPH (default: /tmp/dep_graph.gv)"), |
| query_dep_graph: bool = (false, parse_bool, [UNTRACKED], |
| "enable queries of the dependency graph for regression testing"), |
| no_analysis: bool = (false, parse_bool, [UNTRACKED], |
| "parse and expand the source, but run no analysis"), |
| unstable_options: bool = (false, parse_bool, [UNTRACKED], |
| "adds unstable command line options to rustc interface"), |
| force_overflow_checks: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "force overflow checks on or off"), |
| trace_macros: bool = (false, parse_bool, [UNTRACKED], |
| "for every macro invocation, print its name and arguments"), |
| debug_macros: bool = (false, parse_bool, [TRACKED], |
| "emit line numbers debug info inside macros"), |
| generate_arange_section: bool = (true, parse_bool, [TRACKED], |
| "generate DWARF address ranges for faster lookups"), |
| keep_hygiene_data: bool = (false, parse_bool, [UNTRACKED], |
| "don't clear the hygiene data after analysis"), |
| keep_ast: bool = (false, parse_bool, [UNTRACKED], |
| "keep the AST after lowering it to HIR"), |
| show_span: Option<String> = (None, parse_opt_string, [TRACKED], |
| "show spans for compiler debugging (expr|pat|ty)"), |
| print_type_sizes: bool = (false, parse_bool, [UNTRACKED], |
| "print layout information for each type encountered"), |
| print_mono_items: Option<String> = (None, parse_opt_string, [UNTRACKED], |
| "print the result of the monomorphization collection pass"), |
| mir_opt_level: usize = (1, parse_uint, [TRACKED], |
| "set the MIR optimization level (0-3, default: 1)"), |
| mutable_noalias: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "emit noalias metadata for mutable references (default: no)"), |
| dump_mir: Option<String> = (None, parse_opt_string, [UNTRACKED], |
| "dump MIR state to file. |
| `val` is used to select which passes and functions to dump. For example: |
| `all` matches all passes and functions, |
| `foo` matches all passes for functions whose name contains 'foo', |
| `foo & ConstProp` only the 'ConstProp' pass for function names containing 'foo', |
| `foo | bar` all passes for function names containing 'foo' or 'bar'."), |
| |
| dump_mir_dir: String = (String::from("mir_dump"), parse_string, [UNTRACKED], |
| "the directory the MIR is dumped into"), |
| dump_mir_graphviz: bool = (false, parse_bool, [UNTRACKED], |
| "in addition to `.mir` files, create graphviz `.dot` files"), |
| dump_mir_exclude_pass_number: bool = (false, parse_bool, [UNTRACKED], |
| "if set, exclude the pass number when dumping MIR (used in tests)"), |
| mir_emit_retag: bool = (false, parse_bool, [TRACKED], |
| "emit Retagging MIR statements, interpreted e.g., by miri; implies -Zmir-opt-level=0"), |
| perf_stats: bool = (false, parse_bool, [UNTRACKED], |
| "print some performance-related statistics"), |
| query_stats: bool = (false, parse_bool, [UNTRACKED], |
| "print some statistics about the query system"), |
| hir_stats: bool = (false, parse_bool, [UNTRACKED], |
| "print some statistics about AST and HIR"), |
| always_encode_mir: bool = (false, parse_bool, [TRACKED], |
| "encode MIR of all functions into the crate metadata"), |
| json_rendered: Option<String> = (None, parse_opt_string, [UNTRACKED], |
| "describes how to render the `rendered` field of json diagnostics"), |
| unleash_the_miri_inside_of_you: bool = (false, parse_bool, [TRACKED], |
| "take the breaks off const evaluation. NOTE: this is unsound"), |
| osx_rpath_install_name: bool = (false, parse_bool, [TRACKED], |
| "pass `-install_name @rpath/...` to the macOS linker"), |
| sanitizer: Option<Sanitizer> = (None, parse_sanitizer, [TRACKED], |
| "use a sanitizer"), |
| sanitizer_recover: Vec<Sanitizer> = (vec![], parse_sanitizer_list, [TRACKED], |
| "Enable recovery for selected sanitizers"), |
| sanitizer_memory_track_origins: usize = (0, parse_sanitizer_memory_track_origins, [TRACKED], |
| "Enable origins tracking in MemorySanitizer"), |
| fuel: Option<(String, u64)> = (None, parse_optimization_fuel, [TRACKED], |
| "set the optimization fuel quota for a crate"), |
| print_fuel: Option<String> = (None, parse_opt_string, [TRACKED], |
| "make rustc print the total optimization fuel used by a crate"), |
| force_unstable_if_unmarked: bool = (false, parse_bool, [TRACKED], |
| "force all crates to be `rustc_private` unstable"), |
| pre_link_arg: Vec<String> = (vec![], parse_string_push, [UNTRACKED], |
| "a single extra argument to prepend the linker invocation (can be used several times)"), |
| pre_link_args: Option<Vec<String>> = (None, parse_opt_list, [UNTRACKED], |
| "extra arguments to prepend to the linker invocation (space separated)"), |
| profile: bool = (false, parse_bool, [TRACKED], |
| "insert profiling code"), |
| relro_level: Option<RelroLevel> = (None, parse_relro_level, [TRACKED], |
| "choose which RELRO level to use"), |
| nll_facts: bool = (false, parse_bool, [UNTRACKED], |
| "dump facts from NLL analysis into side files"), |
| dont_buffer_diagnostics: bool = (false, parse_bool, [UNTRACKED], |
| "emit diagnostics rather than buffering (breaks NLL error downgrading, sorting)."), |
| polonius: bool = (false, parse_bool, [UNTRACKED], |
| "enable polonius-based borrow-checker"), |
| codegen_time_graph: bool = (false, parse_bool, [UNTRACKED], |
| "generate a graphical HTML report of time spent in codegen and LLVM"), |
| thinlto: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "enable ThinLTO when possible"), |
| inline_in_all_cgus: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "control whether `#[inline]` functions are in all CGUs"), |
| tls_model: Option<String> = (None, parse_opt_string, [TRACKED], |
| "choose the TLS model to use (`rustc --print tls-models` for details)"), |
| saturating_float_casts: bool = (false, parse_bool, [TRACKED], |
| "make float->int casts UB-free: numbers outside the integer type's range are clipped to \ |
| the max/min integer respectively, and NaN is mapped to 0"), |
| human_readable_cgu_names: bool = (false, parse_bool, [TRACKED], |
| "generate human-readable, predictable names for codegen units"), |
| dep_info_omit_d_target: bool = (false, parse_bool, [TRACKED], |
| "in dep-info output, omit targets for tracking dependencies of the dep-info files \ |
| themselves"), |
| unpretty: Option<String> = (None, parse_unpretty, [UNTRACKED], |
| "present the input source, unstable (and less-pretty) variants; |
| valid types are any of the types for `--pretty`, as well as: |
| `expanded`, `expanded,identified`, |
| `expanded,hygiene` (with internal representations), |
| `everybody_loops` (all function bodies replaced with `loop {}`), |
| `hir` (the HIR), `hir,identified`, |
| `hir,typed` (HIR with types for each node), |
| `hir-tree` (dump the raw HIR), |
| `mir` (the MIR), or `mir-cfg` (graphviz formatted MIR)"), |
| run_dsymutil: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "run `dsymutil` and delete intermediate object files"), |
| ui_testing: Option<bool> = (None, parse_opt_bool, [UNTRACKED], |
| "format compiler diagnostics in a way that's better suitable for UI testing"), |
| embed_bitcode: bool = (false, parse_bool, [TRACKED], |
| "embed LLVM bitcode in object files"), |
| strip_debuginfo_if_disabled: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "tell the linker to strip debuginfo when building without debuginfo enabled."), |
| share_generics: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "make the current crate share its generic instantiations"), |
| chalk: bool = (false, parse_bool, [TRACKED], |
| "enable the experimental Chalk-based trait solving engine"), |
| no_parallel_llvm: bool = (false, parse_bool, [UNTRACKED], |
| "don't run LLVM in parallel (while keeping codegen-units and ThinLTO)"), |
| no_leak_check: bool = (false, parse_bool, [UNTRACKED], |
| "disables the 'leak check' for subtyping; unsound, but useful for tests"), |
| no_interleave_lints: bool = (false, parse_bool, [UNTRACKED], |
| "don't interleave execution of lints; allows benchmarking individual lints"), |
| crate_attr: Vec<String> = (Vec::new(), parse_string_push, [TRACKED], |
| "inject the given attribute in the crate"), |
| self_profile: SwitchWithOptPath = (SwitchWithOptPath::Disabled, |
| parse_switch_with_opt_path, [UNTRACKED], |
| "run the self profiler and output the raw event data"), |
| self_profile_events: Option<Vec<String>> = (None, parse_opt_comma_list, [UNTRACKED], |
| "specifies which kinds of events get recorded by the self profiler"), |
| emit_stack_sizes: bool = (false, parse_bool, [UNTRACKED], |
| "emits a section containing stack size metadata"), |
| plt: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "whether to use the PLT when calling into shared libraries; |
| only has effect for PIC code on systems with ELF binaries |
| (default: PLT is disabled if full relro is enabled)"), |
| merge_functions: Option<MergeFunctions> = (None, parse_merge_functions, [TRACKED], |
| "control the operation of the MergeFunctions LLVM pass, taking |
| the same values as the target option of the same name"), |
| allow_features: Option<Vec<String>> = (None, parse_opt_comma_list, [TRACKED], |
| "only allow the listed language features to be enabled in code (space separated)"), |
| symbol_mangling_version: SymbolManglingVersion = (SymbolManglingVersion::Legacy, |
| parse_symbol_mangling_version, [TRACKED], |
| "which mangling version to use for symbol names"), |
| binary_dep_depinfo: bool = (false, parse_bool, [TRACKED], |
| "include artifacts (sysroot, crate dependencies) used during compilation in dep-info"), |
| insert_sideeffect: bool = (false, parse_bool, [TRACKED], |
| "fix undefined behavior when a thread doesn't eventually make progress \ |
| (such as entering an empty infinite loop) by inserting llvm.sideeffect"), |
| deduplicate_diagnostics: Option<bool> = (None, parse_opt_bool, [UNTRACKED], |
| "deduplicate identical diagnostics"), |
| } |