-// ignore-tidy-filelength
-
//! Contains infrastructure for configuring the compiler, including parsing
//! command-line options.
+pub use crate::options::*;
+
use crate::lint;
use crate::utils::NativeLibraryKind;
use crate::{early_error, early_warn, Session};
use rustc_data_structures::fx::FxHashSet;
use rustc_data_structures::impl_stable_hash_via_hash;
-use rustc_target::spec::{LinkerFlavor, MergeFunctions, PanicStrategy, RelroLevel};
use rustc_target::spec::{Target, TargetTriple};
use syntax_pos::source_map::{FileName, FilePathMapping};
};
use std::fmt;
use std::str::{self, FromStr};
-use std::hash::Hasher;
-use std::collections::hash_map::DefaultHasher;
use std::iter::{self, FromIterator};
use std::path::{Path, PathBuf};
}
}
-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],
- }
-);
-
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub enum PrintRequest {
FileNames,
}
}
-/// 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"),
- disable_instrumentation_preinliner: bool = (false, parse_bool, [TRACKED],
- "Disable the instrumentation pre-inliner, useful for profiling / PGO."),
- 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"),
- nll_dont_emit_read_for_match: bool = (false, parse_bool, [UNTRACKED],
- "in match codegen, do not include FakeRead statements (used by mir-borrowck)"),
- 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: bool = (false, parse_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"),
-}
-
pub const fn default_lib_output() -> CrateType {
CrateType::Rlib
}
/// `Hash` implementation for `DepTrackingHash`. It's important though that
/// we have an opt-in scheme here, so one is hopefully forced to think about
/// how the hash should be calculated when adding a new command-line argument.
-mod dep_tracking {
+crate mod dep_tracking {
use crate::lint;
use crate::utils::NativeLibraryKind;
use std::collections::BTreeMap;
--- /dev/null
+use crate::config::*;
+
+use crate::lint;
+use crate::utils::NativeLibraryKind;
+use crate::early_error;
+use crate::search_paths::SearchPath;
+
+use rustc_target::spec::{LinkerFlavor, MergeFunctions, PanicStrategy, RelroLevel};
+use rustc_target::spec::TargetTriple;
+
+use syntax_pos::edition::Edition;
+use rustc_feature::UnstableFeatures;
+
+use getopts;
+
+use std::collections::BTreeMap;
+
+use std::str;
+use std::hash::Hasher;
+use std::collections::hash_map::DefaultHasher;
+use std::path::PathBuf;
+
+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"),
+ disable_instrumentation_preinliner: bool = (false, parse_bool, [TRACKED],
+ "Disable the instrumentation pre-inliner, useful for profiling / PGO."),
+ 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"),
+ nll_dont_emit_read_for_match: bool = (false, parse_bool, [UNTRACKED],
+ "in match codegen, do not include FakeRead statements (used by mir-borrowck)"),
+ 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: bool = (false, parse_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"),
+}
projects / rust.git / commitdiff