| use crate::config::*; |
| |
| use crate::early_error; |
| use crate::lint; |
| use crate::search_paths::SearchPath; |
| use crate::utils::NativeLibKind; |
| |
| use rustc_target::spec::{CodeModel, LinkerFlavor, MergeFunctions, PanicStrategy}; |
| use rustc_target::spec::{RelocModel, RelroLevel, TargetTriple, TlsModel}; |
| |
| use rustc_feature::UnstableFeatures; |
| use rustc_span::edition::Edition; |
| use rustc_span::SourceFileHashAlgorithm; |
| |
| 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>, NativeLibKind)> [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], |
| |
| // Control path trimming. |
| trimmed_def_paths: TrimmedDefPaths [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, type_desc, _) in $stat { |
| if option_to_lookup != candidate { continue } |
| if !setter(&mut op, value) { |
| match value { |
| None => { |
| early_error(error_format, &format!("{0} option `{1}` requires \ |
| {2} ({3} {1}=<value>)", |
| $outputname, key, |
| type_desc, $prefix)) |
| } |
| Some(value) => { |
| early_error(error_format, &format!("incorrect value `{}` for {} \ |
| option `{}` - {} was expected", |
| value, $outputname, |
| key, type_desc)) |
| } |
| } |
| } |
| 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, &str, &str)] = |
| &[ $( (stringify!($opt), $mod_set::$opt, $mod_desc::$parse, $desc) ),* ]; |
| |
| #[allow(non_upper_case_globals, dead_code)] |
| mod $mod_desc { |
| pub const parse_no_flag: &str = "no value"; |
| pub const parse_bool: &str = "one of: `y`, `yes`, `on`, `n`, `no`, or `off`"; |
| pub const parse_opt_bool: &str = parse_bool; |
| pub const parse_string: &str = "a string"; |
| pub const parse_opt_string: &str = parse_string; |
| pub const parse_string_push: &str = parse_string; |
| pub const parse_opt_pathbuf: &str = "a path"; |
| pub const parse_pathbuf_push: &str = parse_opt_pathbuf; |
| pub const parse_list: &str = "a space-separated list of strings"; |
| pub const parse_opt_list: &str = parse_list; |
| pub const parse_opt_comma_list: &str = "a comma-separated list of strings"; |
| pub const parse_uint: &str = "a number"; |
| pub const parse_opt_uint: &str = parse_uint; |
| pub const parse_threads: &str = parse_uint; |
| pub const parse_passes: &str = "a space-separated list of passes, or `all`"; |
| pub const parse_panic_strategy: &str = "either `unwind` or `abort`"; |
| pub const parse_relro_level: &str = "one of: `full`, `partial`, or `off`"; |
| pub const parse_sanitizers: &str = "comma separated list of sanitizers: `address`, `leak`, `memory` or `thread`"; |
| pub const parse_sanitizer_memory_track_origins: &str = "0, 1, or 2"; |
| pub const parse_cfguard: &str = |
| "either a boolean (`yes`, `no`, `on`, `off`, etc), `checks`, or `nochecks`"; |
| pub const parse_strip: &str = "either `none`, `debuginfo`, or `symbols`"; |
| pub const parse_linker_flavor: &str = ::rustc_target::spec::LinkerFlavor::one_of(); |
| pub const parse_optimization_fuel: &str = "crate=integer"; |
| pub const parse_mir_spanview: &str = "`statement` (default), `terminator`, or `block`"; |
| pub const parse_unpretty: &str = "`string` or `string=string`"; |
| pub const parse_treat_err_as_bug: &str = "either no value or a number bigger than 0"; |
| pub const parse_lto: &str = |
| "either a boolean (`yes`, `no`, `on`, `off`, etc), `thin`, `fat`, or omitted"; |
| pub const parse_linker_plugin_lto: &str = |
| "either a boolean (`yes`, `no`, `on`, `off`, etc), or the path to the linker plugin"; |
| pub const parse_switch_with_opt_path: &str = |
| "an optional path to the profiling data output directory"; |
| pub const parse_merge_functions: &str = "one of: `disabled`, `trampolines`, or `aliases`"; |
| pub const parse_symbol_mangling_version: &str = "either `legacy` or `v0` (RFC 2603)"; |
| pub const parse_src_file_hash: &str = "either `md5` or `sha1`"; |
| pub const parse_relocation_model: &str = |
| "one of supported relocation models (`rustc --print relocation-models`)"; |
| pub const parse_code_model: &str = |
| "one of supported code models (`rustc --print code-models`)"; |
| pub const parse_tls_model: &str = |
| "one of supported TLS models (`rustc --print tls-models`)"; |
| pub const parse_target_feature: &str = parse_string; |
| } |
| |
| #[allow(dead_code)] |
| mod $mod_set { |
| use super::*; |
| use std::str::FromStr; |
| |
| // Sometimes different options need to build a common structure. |
| // That structure can kept in one of the options' fields, the others become dummy. |
| macro_rules! redirect_field { |
| ($cg:ident.link_arg) => { $cg.link_args }; |
| ($cg:ident.pre_link_arg) => { $cg.pre_link_args }; |
| ($cg:ident.$field:ident) => { $cg.$field }; |
| } |
| |
| $( |
| pub fn $opt(cg: &mut $struct_name, v: Option<&str>) -> bool { |
| $parse(&mut redirect_field!(cg.$opt), v) |
| } |
| )* |
| |
| /// This is for boolean options that don't take a value and start with |
| /// `no-`. This style of option is deprecated. |
| fn parse_no_flag(slot: &mut bool, v: Option<&str>) -> bool { |
| match v { |
| None => { *slot = true; true } |
| Some(_) => false, |
| } |
| } |
| |
| /// Use this for any boolean option that has a static default. |
| fn parse_bool(slot: &mut bool, v: Option<&str>) -> bool { |
| match v { |
| Some("y") | Some("yes") | Some("on") | None => { *slot = true; true } |
| Some("n") | Some("no") | Some("off") => { *slot = false; true } |
| _ => false, |
| } |
| } |
| |
| /// Use this for any boolean option that lacks a static default. (The |
| /// actions taken when such an option is not specified will depend on |
| /// other factors, such as other options, or target options.) |
| fn parse_opt_bool(slot: &mut Option<bool>, v: Option<&str>) -> bool { |
| match v { |
| Some("y") | Some("yes") | Some("on") | None => { *slot = Some(true); true } |
| Some("n") | Some("no") | Some("off") => { *slot = Some(false); true } |
| _ => false, |
| } |
| } |
| |
| /// Use this for any string option that has a static default. |
| fn parse_string(slot: &mut String, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { *slot = s.to_string(); true }, |
| None => false, |
| } |
| } |
| |
| /// Use this for any string option that lacks a static default. |
| 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_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 |
| } |
| } |
| |
| /// Use this for any uint option that has a static default. |
| 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 |
| } |
| } |
| |
| /// Use this for any uint option that lacks a static default. |
| fn parse_opt_uint(slot: &mut Option<usize>, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { *slot = s.parse().ok(); slot.is_some() } |
| 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_sanitizers(slot: &mut SanitizerSet, v: Option<&str>) -> bool { |
| if let Some(v) = v { |
| for s in v.split(',') { |
| *slot |= match s { |
| "address" => SanitizerSet::ADDRESS, |
| "leak" => SanitizerSet::LEAK, |
| "memory" => SanitizerSet::MEMORY, |
| "thread" => SanitizerSet::THREAD, |
| _ => return false, |
| } |
| } |
| true |
| } else { |
| false |
| } |
| } |
| |
| fn parse_sanitizer_memory_track_origins(slot: &mut usize, v: Option<&str>) -> bool { |
| match v { |
| Some("2") | None => { *slot = 2; true } |
| Some("1") => { *slot = 1; true } |
| Some("0") => { *slot = 0; true } |
| Some(_) => false, |
| } |
| } |
| |
| fn parse_strip(slot: &mut Strip, v: Option<&str>) -> bool { |
| match v { |
| Some("none") => *slot = Strip::None, |
| Some("debuginfo") => *slot = Strip::Debuginfo, |
| Some("symbols") => *slot = Strip::Symbols, |
| _ => return false, |
| } |
| true |
| } |
| |
| fn parse_cfguard(slot: &mut CFGuard, 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() { |
| CFGuard::Checks |
| } else { |
| CFGuard::Disabled |
| }; |
| return true |
| } |
| } |
| |
| *slot = match v { |
| None => CFGuard::Checks, |
| Some("checks") => CFGuard::Checks, |
| Some("nochecks") => CFGuard::NoChecks, |
| Some(_) => return false, |
| }; |
| true |
| } |
| |
| 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_mir_spanview(slot: &mut Option<MirSpanview>, 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() { |
| Some(MirSpanview::Statement) |
| } else { |
| None |
| }; |
| return true |
| } |
| } |
| |
| let v = match v { |
| None => { |
| *slot = Some(MirSpanview::Statement); |
| return true; |
| } |
| Some(v) => v, |
| }; |
| |
| *slot = Some(match v.trim_end_matches("s") { |
| "statement" | "stmt" => MirSpanview::Statement, |
| "terminator" | "term" => MirSpanview::Terminator, |
| "block" | "basicblock" => MirSpanview::Block, |
| _ => return false, |
| }); |
| true |
| } |
| |
| 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_relocation_model(slot: &mut Option<RelocModel>, v: Option<&str>) -> bool { |
| match v.and_then(|s| RelocModel::from_str(s).ok()) { |
| Some(relocation_model) => *slot = Some(relocation_model), |
| None if v == Some("default") => *slot = None, |
| _ => return false, |
| } |
| true |
| } |
| |
| fn parse_code_model(slot: &mut Option<CodeModel>, v: Option<&str>) -> bool { |
| match v.and_then(|s| CodeModel::from_str(s).ok()) { |
| Some(code_model) => *slot = Some(code_model), |
| _ => return false, |
| } |
| true |
| } |
| |
| fn parse_tls_model(slot: &mut Option<TlsModel>, v: Option<&str>) -> bool { |
| match v.and_then(|s| TlsModel::from_str(s).ok()) { |
| Some(tls_model) => *slot = Some(tls_model), |
| _ => 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 |
| } |
| |
| fn parse_src_file_hash(slot: &mut Option<SourceFileHashAlgorithm>, v: Option<&str>) -> bool { |
| match v.and_then(|s| SourceFileHashAlgorithm::from_str(s).ok()) { |
| Some(hash_kind) => *slot = Some(hash_kind), |
| _ => return false, |
| } |
| true |
| } |
| |
| fn parse_target_feature(slot: &mut String, v: Option<&str>) -> bool { |
| match v { |
| Some(s) => { |
| if !slot.is_empty() { |
| slot.push_str(","); |
| } |
| slot.push_str(s); |
| true |
| } |
| None => false, |
| } |
| } |
| } |
| ) } |
| |
| options! {CodegenOptions, CodegenSetter, basic_codegen_options, |
| build_codegen_options, "C", "codegen", |
| CG_OPTIONS, cg_type_desc, cgsetters, |
| |
| // This list is in alphabetical order. |
| // |
| // If you add a new option, please update: |
| // - src/librustc_interface/tests.rs |
| // - src/doc/rustc/src/codegen-options/index.md |
| |
| ar: String = (String::new(), parse_string, [UNTRACKED], |
| "this option is deprecated and does nothing"), |
| code_model: Option<CodeModel> = (None, parse_code_model, [TRACKED], |
| "choose the code model to use (`rustc --print code-models` for details)"), |
| codegen_units: Option<usize> = (None, parse_opt_uint, [UNTRACKED], |
| "divide crate into N units to optimize in parallel"), |
| control_flow_guard: CFGuard = (CFGuard::Disabled, parse_cfguard, [TRACKED], |
| "use Windows Control Flow Guard (default: no)"), |
| debug_assertions: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "explicitly enable the `cfg(debug_assertions)` directive"), |
| debuginfo: usize = (0, parse_uint, [TRACKED], |
| "debug info emission level (0 = no debug info, 1 = line tables only, \ |
| 2 = full debug info with variable and type information; default: 0)"), |
| default_linker_libraries: bool = (false, parse_bool, [UNTRACKED], |
| "allow the linker to link its default libraries (default: no)"), |
| embed_bitcode: bool = (true, parse_bool, [TRACKED], |
| "emit bitcode in rlibs (default: yes)"), |
| extra_filename: String = (String::new(), parse_string, [UNTRACKED], |
| "extra data to put in each output filename"), |
| force_frame_pointers: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "force use of the frame pointers"), |
| force_unwind_tables: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "force use of unwind tables"), |
| incremental: Option<String> = (None, parse_opt_string, [UNTRACKED], |
| "enable incremental compilation"), |
| inline_threshold: Option<usize> = (None, parse_opt_uint, [TRACKED], |
| "set the threshold for inlining a function"), |
| link_arg: (/* redirected to link_args */) = ((), parse_string_push, [UNTRACKED], |
| "a single extra argument to append to the linker invocation (can be used several times)"), |
| link_args: Vec<String> = (Vec::new(), parse_list, [UNTRACKED], |
| "extra arguments to append to the linker invocation (space separated)"), |
| link_dead_code: Option<bool> = (None, parse_opt_bool, [UNTRACKED], |
| "keep dead code at link time (useful for code coverage) (default: no)"), |
| link_self_contained: Option<bool> = (None, parse_opt_bool, [UNTRACKED], |
| "control whether to link Rust provided C objects/libraries or rely |
| on C toolchain installed in the system"), |
| linker: Option<PathBuf> = (None, parse_opt_pathbuf, [UNTRACKED], |
| "system linker to link outputs with"), |
| 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"), |
| llvm_args: Vec<String> = (Vec::new(), parse_list, [TRACKED], |
| "a list of arguments to pass to LLVM (space separated)"), |
| lto: LtoCli = (LtoCli::Unspecified, parse_lto, [TRACKED], |
| "perform LLVM link-time optimizations"), |
| metadata: Vec<String> = (Vec::new(), parse_list, [TRACKED], |
| "metadata to mangle symbol names with"), |
| no_prepopulate_passes: bool = (false, parse_no_flag, [TRACKED], |
| "give an empty list of passes to the pass manager"), |
| no_redzone: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "disable the use of the redzone"), |
| no_stack_check: bool = (false, parse_no_flag, [UNTRACKED], |
| "this option is deprecated and does nothing"), |
| no_vectorize_loops: bool = (false, parse_no_flag, [TRACKED], |
| "disable loop vectorization optimization passes"), |
| no_vectorize_slp: bool = (false, parse_no_flag, [TRACKED], |
| "disable LLVM's SLP vectorization pass"), |
| opt_level: String = ("0".to_string(), parse_string, [TRACKED], |
| "optimization level (0-3, s, or z; default: 0)"), |
| overflow_checks: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "use overflow checks for integer arithmetic"), |
| panic: Option<PanicStrategy> = (None, parse_panic_strategy, [TRACKED], |
| "panic strategy to compile crate with"), |
| passes: Vec<String> = (Vec::new(), parse_list, [TRACKED], |
| "a list of extra LLVM passes to run (space separated)"), |
| prefer_dynamic: bool = (false, parse_bool, [TRACKED], |
| "prefer dynamic linking to static linking (default: no)"), |
| 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"), |
| relocation_model: Option<RelocModel> = (None, parse_relocation_model, [TRACKED], |
| "control generation of position-independent code (PIC) \ |
| (`rustc --print relocation-models` for details)"), |
| remark: Passes = (Passes::Some(Vec::new()), parse_passes, [UNTRACKED], |
| "print remarks for these optimization passes (space separated, or \"all\")"), |
| rpath: bool = (false, parse_bool, [UNTRACKED], |
| "set rpath values in libs/exes (default: no)"), |
| save_temps: bool = (false, parse_bool, [UNTRACKED], |
| "save all temporary output files during compilation (default: no)"), |
| soft_float: bool = (false, parse_bool, [TRACKED], |
| "use soft float ABI (*eabihf targets only) (default: no)"), |
| target_cpu: Option<String> = (None, parse_opt_string, [TRACKED], |
| "select target processor (`rustc --print target-cpus` for details)"), |
| target_feature: String = (String::new(), parse_target_feature, [TRACKED], |
| "target specific attributes. (`rustc --print target-features` for details). \ |
| This feature is unsafe."), |
| |
| // This list is in alphabetical order. |
| // |
| // If you add a new option, please update: |
| // - src/librustc_interface/tests.rs |
| // - src/doc/rustc/src/codegen-options/index.md |
| } |
| |
| options! {DebuggingOptions, DebuggingSetter, basic_debugging_options, |
| build_debugging_options, "Z", "debugging", |
| DB_OPTIONS, db_type_desc, dbsetters, |
| |
| // This list is in alphabetical order. |
| // |
| // If you add a new option, please update: |
| // - src/librustc_interface/tests.rs |
| |
| allow_features: Option<Vec<String>> = (None, parse_opt_comma_list, [TRACKED], |
| "only allow the listed language features to be enabled in code (space separated)"), |
| always_encode_mir: bool = (false, parse_bool, [TRACKED], |
| "encode MIR of all functions into the crate metadata (default: no)"), |
| asm_comments: bool = (false, parse_bool, [TRACKED], |
| "generate comments into the assembly (may change behavior) (default: no)"), |
| ast_json: bool = (false, parse_bool, [UNTRACKED], |
| "print the AST as JSON and halt (default: no)"), |
| ast_json_noexpand: bool = (false, parse_bool, [UNTRACKED], |
| "print the pre-expansion AST as JSON and halt (default: no)"), |
| binary_dep_depinfo: bool = (false, parse_bool, [TRACKED], |
| "include artifacts (sysroot, crate dependencies) used during compilation in dep-info \ |
| (default: no)"), |
| borrowck: String = ("migrate".to_string(), parse_string, [UNTRACKED], |
| "select which borrowck is used (`mir` or `migrate`) (default: `migrate`)"), |
| borrowck_stats: bool = (false, parse_bool, [UNTRACKED], |
| "gather borrowck statistics (default: no)"), |
| cgu_partitioning_strategy: Option<String> = (None, parse_opt_string, [TRACKED], |
| "the codegen unit partitioning strategy to use"), |
| chalk: bool = (false, parse_bool, [TRACKED], |
| "enable the experimental Chalk-based trait solving engine"), |
| codegen_backend: Option<String> = (None, parse_opt_string, [TRACKED], |
| "the backend to use"), |
| combine_cgu: bool = (false, parse_bool, [TRACKED], |
| "combine CGUs into a single one"), |
| crate_attr: Vec<String> = (Vec::new(), parse_string_push, [TRACKED], |
| "inject the given attribute in the crate"), |
| debug_macros: bool = (false, parse_bool, [TRACKED], |
| "emit line numbers debug info inside macros (default: no)"), |
| deduplicate_diagnostics: bool = (true, parse_bool, [UNTRACKED], |
| "deduplicate identical diagnostics (default: yes)"), |
| 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 (default: no)"), |
| dep_tasks: bool = (false, parse_bool, [UNTRACKED], |
| "print tasks that execute and the color their dep node gets (requires debug build) \ |
| (default: no)"), |
| dont_buffer_diagnostics: bool = (false, parse_bool, [UNTRACKED], |
| "emit diagnostics rather than buffering (breaks NLL error downgrading, sorting) \ |
| (default: no)"), |
| dual_proc_macros: bool = (false, parse_bool, [TRACKED], |
| "load proc macros for both target and host, but only link to the target (default: no)"), |
| dump_dep_graph: bool = (false, parse_bool, [UNTRACKED], |
| "dump the dependency graph to $RUST_DEP_GRAPH (default: /tmp/dep_graph.gv) \ |
| (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_dataflow: bool = (false, parse_bool, [UNTRACKED], |
| "in addition to `.mir` files, create graphviz `.dot` files with dataflow results \ |
| (default: no)"), |
| dump_mir_dir: String = ("mir_dump".to_string(), parse_string, [UNTRACKED], |
| "the directory the MIR is dumped into (default: `mir_dump`)"), |
| dump_mir_exclude_pass_number: bool = (false, parse_bool, [UNTRACKED], |
| "exclude the pass number when dumping MIR (used in tests) (default: no)"), |
| dump_mir_graphviz: bool = (false, parse_bool, [UNTRACKED], |
| "in addition to `.mir` files, create graphviz `.dot` files (default: no)"), |
| dump_mir_spanview: Option<MirSpanview> = (None, parse_mir_spanview, [UNTRACKED], |
| "in addition to `.mir` files, create `.html` files to view spans for \ |
| all `statement`s (including terminators), only `terminator` spans, or \ |
| computed `block` spans (one span encompassing a block's terminator and \ |
| all statements)."), |
| emit_stack_sizes: bool = (false, parse_bool, [UNTRACKED], |
| "emit a section containing stack size metadata (default: no)"), |
| experimental_coverage: bool = (false, parse_bool, [TRACKED], |
| "enable and extend the `-Z instrument-coverage` function-level coverage \ |
| feature, adding additional experimental (likely inaccurate) counters and \ |
| code regions (used by `rustc` compiler developers to test new coverage \ |
| counter placements) (default: no)"), |
| fewer_names: bool = (false, parse_bool, [TRACKED], |
| "reduce memory use by retaining fewer names within compilation artifacts (LLVM-IR) \ |
| (default: no)"), |
| force_overflow_checks: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "force overflow checks on or off"), |
| force_unstable_if_unmarked: bool = (false, parse_bool, [TRACKED], |
| "force all crates to be `rustc_private` unstable (default: no)"), |
| fuel: Option<(String, u64)> = (None, parse_optimization_fuel, [TRACKED], |
| "set the optimization fuel quota for a crate"), |
| graphviz_dark_mode: bool = (false, parse_bool, [UNTRACKED], |
| "use dark-themed colors in graphviz output (default: no)"), |
| graphviz_font: String = ("Courier, monospace".to_string(), parse_string, [UNTRACKED], |
| "use the given `fontname` in graphviz output; can be overridden by setting \ |
| environment variable `RUSTC_GRAPHVIZ_FONT` (default: `Courier, monospace`)"), |
| hir_stats: bool = (false, parse_bool, [UNTRACKED], |
| "print some statistics about AST and HIR (default: no)"), |
| human_readable_cgu_names: bool = (false, parse_bool, [TRACKED], |
| "generate human-readable, predictable names for codegen units (default: no)"), |
| identify_regions: bool = (false, parse_bool, [UNTRACKED], |
| "display unnamed regions as `'<id>`, using a non-ident unique id (default: no)"), |
| incremental_ignore_spans: bool = (false, parse_bool, [UNTRACKED], |
| "ignore spans during ICH computation -- used for testing (default: no)"), |
| incremental_info: bool = (false, parse_bool, [UNTRACKED], |
| "print high-level information about incremental reuse (or the lack thereof) \ |
| (default: no)"), |
| incremental_verify_ich: bool = (false, parse_bool, [UNTRACKED], |
| "verify incr. comp. hashes of green query instances (default: no)"), |
| inline_in_all_cgus: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "control whether `#[inline]` functions are in all CGUs"), |
| input_stats: bool = (false, parse_bool, [UNTRACKED], |
| "gather statistics about the input (default: no)"), |
| 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 \ |
| (default: no)"), |
| instrument_coverage: bool = (false, parse_bool, [TRACKED], |
| "instrument the generated code to support LLVM source-based code coverage \ |
| reports (note, the compiler build config must include `profiler = true`, \ |
| and is mutually exclusive with `-C profile-generate`/`-C profile-use`); \ |
| implies `-C link-dead-code` (unless targeting MSVC, or explicitly disabled) \ |
| and `-Z symbol-mangling-version=v0`; disables/overrides some Rust \ |
| optimizations (default: no)"), |
| instrument_mcount: bool = (false, parse_bool, [TRACKED], |
| "insert function instrument code for mcount-based tracing (default: no)"), |
| keep_hygiene_data: bool = (false, parse_bool, [UNTRACKED], |
| "keep hygiene data after analysis (default: no)"), |
| link_native_libraries: bool = (true, parse_bool, [UNTRACKED], |
| "link native libraries in the linker invocation (default: yes)"), |
| link_only: bool = (false, parse_bool, [TRACKED], |
| "link the `.rlink` file generated by `-Z no-link` (default: no)"), |
| llvm_time_trace: bool = (false, parse_bool, [UNTRACKED], |
| "generate JSON tracing data file from LLVM data (default: no)"), |
| ls: bool = (false, parse_bool, [UNTRACKED], |
| "list the symbols defined by a library crate (default: no)"), |
| macro_backtrace: bool = (false, parse_bool, [UNTRACKED], |
| "show macro backtraces (default: no)"), |
| 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"), |
| meta_stats: bool = (false, parse_bool, [UNTRACKED], |
| "gather metadata statistics (default: no)"), |
| mir_emit_retag: bool = (false, parse_bool, [TRACKED], |
| "emit Retagging MIR statements, interpreted e.g., by miri; implies -Zmir-opt-level=0 \ |
| (default: no)"), |
| mir_opt_level: usize = (1, parse_uint, [TRACKED], |
| "MIR optimization level (0-3; default: 1)"), |
| mutable_noalias: bool = (false, parse_bool, [TRACKED], |
| "emit noalias metadata for mutable references (default: no)"), |
| new_llvm_pass_manager: bool = (false, parse_bool, [TRACKED], |
| "use new LLVM pass manager (default: no)"), |
| nll_facts: bool = (false, parse_bool, [UNTRACKED], |
| "dump facts from NLL analysis into side files (default: no)"), |
| no_analysis: bool = (false, parse_no_flag, [UNTRACKED], |
| "parse and expand the source, but run no analysis"), |
| no_codegen: bool = (false, parse_no_flag, [TRACKED], |
| "run all passes except codegen; no output"), |
| no_generate_arange_section: bool = (false, parse_no_flag, [TRACKED], |
| "omit DWARF address ranges that give faster lookups"), |
| no_interleave_lints: bool = (false, parse_no_flag, [UNTRACKED], |
| "execute lints separately; allows benchmarking individual lints"), |
| no_leak_check: bool = (false, parse_no_flag, [UNTRACKED], |
| "disable the 'leak check' for subtyping; unsound, but useful for tests"), |
| no_link: bool = (false, parse_no_flag, [TRACKED], |
| "compile without linking"), |
| no_parallel_llvm: bool = (false, parse_no_flag, [UNTRACKED], |
| "run LLVM in non-parallel mode (while keeping codegen-units and ThinLTO)"), |
| no_profiler_runtime: bool = (false, parse_no_flag, [TRACKED], |
| "prevent automatic injection of the profiler_builtins crate"), |
| osx_rpath_install_name: bool = (false, parse_bool, [TRACKED], |
| "pass `-install_name @rpath/...` to the macOS linker (default: no)"), |
| panic_abort_tests: bool = (false, parse_bool, [TRACKED], |
| "support compiling tests with panic=abort (default: no)"), |
| parse_only: bool = (false, parse_bool, [UNTRACKED], |
| "parse only; do not compile, assemble, or link (default: no)"), |
| perf_stats: bool = (false, parse_bool, [UNTRACKED], |
| "print some performance-related statistics (default: no)"), |
| 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)"), |
| polonius: bool = (false, parse_bool, [UNTRACKED], |
| "enable polonius-based borrow-checker (default: no)"), |
| polymorphize: bool = (false, parse_bool, [TRACKED], |
| "perform polymorphization analysis"), |
| pre_link_arg: (/* redirected to pre_link_args */) = ((), parse_string_push, [UNTRACKED], |
| "a single extra argument to prepend the linker invocation (can be used several times)"), |
| pre_link_args: Vec<String> = (Vec::new(), parse_list, [UNTRACKED], |
| "extra arguments to prepend to the linker invocation (space separated)"), |
| print_fuel: Option<String> = (None, parse_opt_string, [TRACKED], |
| "make rustc print the total optimization fuel used by a crate"), |
| print_link_args: bool = (false, parse_bool, [UNTRACKED], |
| "print the arguments passed to the linker (default: no)"), |
| print_llvm_passes: bool = (false, parse_bool, [UNTRACKED], |
| "print the LLVM optimization passes being run (default: no)"), |
| print_mono_items: Option<String> = (None, parse_opt_string, [UNTRACKED], |
| "print the result of the monomorphization collection pass"), |
| print_type_sizes: bool = (false, parse_bool, [UNTRACKED], |
| "print layout information for each type encountered (default: no)"), |
| proc_macro_backtrace: bool = (false, parse_bool, [UNTRACKED], |
| "show backtraces for panics during proc-macro execution (default: no)"), |
| profile: bool = (false, parse_bool, [TRACKED], |
| "insert profiling code (default: no)"), |
| profile_emit: Option<PathBuf> = (None, parse_opt_pathbuf, [TRACKED], |
| "file path to emit profiling data at runtime when using 'profile' \ |
| (default based on relative source path)"), |
| query_dep_graph: bool = (false, parse_bool, [UNTRACKED], |
| "enable queries of the dependency graph for regression testing (default: no)"), |
| query_stats: bool = (false, parse_bool, [UNTRACKED], |
| "print some statistics about the query system (default: no)"), |
| relro_level: Option<RelroLevel> = (None, parse_relro_level, [TRACKED], |
| "choose which RELRO level to use"), |
| report_delayed_bugs: bool = (false, parse_bool, [TRACKED], |
| "immediately print bugs registered with `delay_span_bug` (default: no)"), |
| // The default historical behavior was to always run dsymutil, so we're |
| // preserving that temporarily, but we're likely to switch the default |
| // soon. |
| run_dsymutil: bool = (true, parse_bool, [TRACKED], |
| "if on Mac, run `dsymutil` and delete intermediate object files (default: yes)"), |
| sanitizer: SanitizerSet = (SanitizerSet::empty(), parse_sanitizers, [TRACKED], |
| "use a sanitizer"), |
| sanitizer_memory_track_origins: usize = (0, parse_sanitizer_memory_track_origins, [TRACKED], |
| "enable origins tracking in MemorySanitizer"), |
| sanitizer_recover: SanitizerSet = (SanitizerSet::empty(), parse_sanitizers, [TRACKED], |
| "enable recovery for selected sanitizers"), |
| saturating_float_casts: Option<bool> = (None, parse_opt_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 (default: yes)"), |
| save_analysis: bool = (false, parse_bool, [UNTRACKED], |
| "write syntax and type analysis (in JSON format) information, in \ |
| addition to normal output (default: no)"), |
| self_profile: SwitchWithOptPath = (SwitchWithOptPath::Disabled, |
| parse_switch_with_opt_path, [UNTRACKED], |
| "run the self profiler and output the raw event data"), |
| // keep this in sync with the event filter names in librustc_data_structures/profiling.rs |
| self_profile_events: Option<Vec<String>> = (None, parse_opt_comma_list, [UNTRACKED], |
| "specify the events recorded by the self profiler; |
| for example: `-Z self-profile-events=default,query-keys` |
| all options: none, all, default, generic-activity, query-provider, query-cache-hit |
| query-blocked, incr-cache-load, query-keys, function-args, args, llvm"), |
| share_generics: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "make the current crate share its generic instantiations"), |
| show_span: Option<String> = (None, parse_opt_string, [TRACKED], |
| "show spans for compiler debugging (expr|pat|ty)"), |
| span_debug: bool = (false, parse_bool, [UNTRACKED], |
| "forward proc_macro::Span's `Debug` impl to `Span`"), |
| // o/w tests have closure@path |
| span_free_formats: bool = (false, parse_bool, [UNTRACKED], |
| "exclude spans when debug-printing compiler state (default: no)"), |
| src_hash_algorithm: Option<SourceFileHashAlgorithm> = (None, parse_src_file_hash, [TRACKED], |
| "hash algorithm of source files in debug info (`md5`, or `sha1`)"), |
| strip: Strip = (Strip::None, parse_strip, [UNTRACKED], |
| "tell the linker which information to strip (`none` (default), `debuginfo` or `symbols`)"), |
| symbol_mangling_version: SymbolManglingVersion = (SymbolManglingVersion::Legacy, |
| parse_symbol_mangling_version, [TRACKED], |
| "which mangling version to use for symbol names"), |
| teach: bool = (false, parse_bool, [TRACKED], |
| "show extended diagnostic help (default: no)"), |
| terminal_width: Option<usize> = (None, parse_opt_uint, [UNTRACKED], |
| "set the current terminal width"), |
| thinlto: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "enable ThinLTO when possible"), |
| // 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"), |
| time: bool = (false, parse_bool, [UNTRACKED], |
| "measure time of rustc processes (default: no)"), |
| time_llvm_passes: bool = (false, parse_bool, [UNTRACKED], |
| "measure time of each LLVM pass (default: no)"), |
| time_passes: bool = (false, parse_bool, [UNTRACKED], |
| "measure time of each rustc pass (default: no)"), |
| tls_model: Option<TlsModel> = (None, parse_tls_model, [TRACKED], |
| "choose the TLS model to use (`rustc --print tls-models` for details)"), |
| trace_macros: bool = (false, parse_bool, [UNTRACKED], |
| "for every macro invocation, print its name and arguments (default: no)"), |
| treat_err_as_bug: Option<usize> = (None, parse_treat_err_as_bug, [TRACKED], |
| "treat error number `val` that occurs as bug"), |
| trim_diagnostic_paths: bool = (true, parse_bool, [UNTRACKED], |
| "in diagnostics, use heuristics to shorten paths referring to items"), |
| ui_testing: bool = (false, parse_bool, [UNTRACKED], |
| "emit compiler diagnostics in a form suitable for UI testing (default: no)"), |
| unleash_the_miri_inside_of_you: bool = (false, parse_bool, [TRACKED], |
| "take the brakes off const evaluation. NOTE: this is unsound (default: no)"), |
| 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)"), |
| unstable_options: bool = (false, parse_bool, [UNTRACKED], |
| "adds unstable command line options to rustc interface (default: no)"), |
| use_ctors_section: Option<bool> = (None, parse_opt_bool, [TRACKED], |
| "use legacy .ctors section for initializers rather than .init_array"), |
| validate_mir: bool = (false, parse_bool, [UNTRACKED], |
| "validate MIR after each transformation"), |
| verbose: bool = (false, parse_bool, [UNTRACKED], |
| "in general, enable more debug printouts (default: no)"), |
| verify_llvm_ir: bool = (false, parse_bool, [TRACKED], |
| "verify LLVM IR (default: no)"), |
| |
| // This list is in alphabetical order. |
| // |
| // If you add a new option, please update: |
| // - src/librustc_interface/tests.rs |
| } |