use crate::config::*;
use crate::early_error;
use crate::lint;
use crate::search_paths::SearchPath;
use crate::utils::NativeLib;
use rustc_target::spec::{CodeModel, LinkerFlavor, MergeFunctions, PanicStrategy, SanitizerSet};
use rustc_target::spec::{RelocModel, RelroLevel, SplitDebuginfo, 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::num::NonZeroUsize;
use std::path::PathBuf;
use std::str;
macro_rules! insert {
($opt_name:ident, $opt_expr:expr, $sub_hashes:expr) => {
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! hash_opt {
($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, $_for_crate_hash: ident, [UNTRACKED]) => {{}};
($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, $_for_crate_hash: ident, [TRACKED]) => {{ insert!($opt_name, $opt_expr, $sub_hashes) }};
($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, $for_crate_hash: ident, [TRACKED_NO_CRATE_HASH]) => {{
if !$for_crate_hash {
insert!($opt_name, $opt_expr, $sub_hashes)
}
}};
($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, $_for_crate_hash: ident, [SUBSTRUCT]) => {{}};
}
macro_rules! hash_substruct {
($opt_name:ident, $opt_expr:expr, $error_format:expr, $for_crate_hash:expr, $hasher:expr, [UNTRACKED]) => {{}};
($opt_name:ident, $opt_expr:expr, $error_format:expr, $for_crate_hash:expr, $hasher:expr, [TRACKED]) => {{}};
($opt_name:ident, $opt_expr:expr, $error_format:expr, $for_crate_hash:expr, $hasher:expr, [TRACKED_NO_CRATE_HASH]) => {{}};
($opt_name:ident, $opt_expr:expr, $error_format:expr, $for_crate_hash:expr, $hasher:expr, [SUBSTRUCT]) => {
use crate::config::dep_tracking::DepTrackingHash;
$opt_expr.dep_tracking_hash($for_crate_hash, $error_format).hash($hasher, $error_format);
};
}
macro_rules! top_level_options {
( $( #[$top_level_attr:meta] )* pub struct Options { $(
$( #[$attr:meta] )*
$opt:ident : $t:ty [$dep_tracking_marker:ident],
)* } ) => (
#[derive(Clone)]
$( #[$top_level_attr] )*
pub struct Options {
$(
$( #[$attr] )*
pub $opt: $t
),*
}
impl Options {
pub fn dep_tracking_hash(&self, for_crate_hash: bool) -> u64 {
let mut sub_hashes = BTreeMap::new();
$({
hash_opt!($opt,
&self.$opt,
&mut sub_hashes,
for_crate_hash,
[$dep_tracking_marker]);
})*
let mut hasher = DefaultHasher::new();
dep_tracking::stable_hash(sub_hashes,
&mut hasher,
self.error_format);
$({
hash_substruct!($opt,
&self.$opt,
self.error_format,
for_crate_hash,
&mut hasher,
[$dep_tracking_marker]);
})*
hasher.finish()
}
}
);
}
top_level_options!(
pub struct Options {
crate_types: Vec<CrateType> [TRACKED],
optimize: OptLevel [TRACKED],
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<NativeLib> [TRACKED],
maybe_sysroot: Option<PathBuf> [UNTRACKED],
target_triple: TargetTriple [TRACKED],
test: bool [TRACKED],
error_format: ErrorOutputType [UNTRACKED],
incremental: Option<PathBuf> [UNTRACKED],
debugging_opts: DebuggingOptions [SUBSTRUCT],
prints: Vec<PrintRequest> [UNTRACKED],
borrowck_mode: BorrowckMode [UNTRACKED],
cg: CodegenOptions [SUBSTRUCT],
externs: Externs [UNTRACKED],
extern_dep_specs: ExternDepSpecs [UNTRACKED],
crate_name: Option<String> [TRACKED],
alt_std_name: Option<String> [TRACKED],
unstable_features: UnstableFeatures [TRACKED],
actually_rustdoc: bool [TRACKED],
trimmed_def_paths: TrimmedDefPaths [TRACKED],
cli_forced_codegen_units: Option<usize> [UNTRACKED],
cli_forced_thinlto_off: bool [UNTRACKED],
remap_path_prefix: Vec<(PathBuf, PathBuf)> [TRACKED_NO_CRATE_HASH],
real_rust_source_base_dir: Option<PathBuf> [TRACKED_NO_CRATE_HASH],
edition: Edition [TRACKED],
json_artifact_notifications: bool [TRACKED],
json_unused_externs: bool [UNTRACKED],
pretty: Option<PpMode> [UNTRACKED],
}
);
macro_rules! options {
($struct_name:ident, $stat:ident, $prefix:expr, $outputname:expr,
$($( #[$attr:meta] )* $opt:ident : $t:ty = (
$init:expr,
$parse:ident,
[$dep_tracking_marker:ident],
$desc:expr)
),* ,) =>
(
#[derive(Clone)]
pub struct $struct_name { $(pub $opt: $t),* }
impl Default for $struct_name {
fn default() -> $struct_name {
$struct_name { $( $( #[$attr] )* $opt: $init),* }
}
}
impl $struct_name {
pub fn build(
matches: &getopts::Matches,
error_format: ErrorOutputType,
) -> $struct_name {
build_options(matches, $stat, $prefix, $outputname, error_format)
}
fn dep_tracking_hash(&self, _for_crate_hash: bool, error_format: ErrorOutputType) -> u64 {
let mut sub_hashes = BTreeMap::new();
$({
hash_opt!($opt,
&self.$opt,
&mut sub_hashes,
_for_crate_hash,
[$dep_tracking_marker]);
})*
let mut hasher = DefaultHasher::new();
dep_tracking::stable_hash(sub_hashes,
&mut hasher,
error_format);
hasher.finish()
}
}
pub const $stat: OptionDescrs<$struct_name> =
&[ $( (stringify!($opt), $opt, desc::$parse, $desc) ),* ];
$(
fn $opt(cg: &mut $struct_name, v: Option<&str>) -> bool {
parse::$parse(&mut redirect_field!(cg.$opt), v)
}
)*
) }
macro_rules! redirect_field {
($cg:ident.link_arg) => {
$cg.link_args
};
($cg:ident.pre_link_arg) => {
$cg.pre_link_args
};
($cg:ident.$field:ident) => {
$cg.$field
};
}
type OptionSetter<O> = fn(&mut O, v: Option<&str>) -> bool;
type OptionDescrs<O> = &'static [(&'static str, OptionSetter<O>, &'static str, &'static str)];
fn build_options<O: Default>(
matches: &getopts::Matches,
descrs: OptionDescrs<O>,
prefix: &str,
outputname: &str,
error_format: ErrorOutputType,
) -> O {
let mut op = O::default();
for option in matches.opt_strs(prefix) {
let (key, value) = match option.split_once('=') {
None => (option, None),
Some((k, v)) => (k.to_string(), Some(v)),
};
let option_to_lookup = key.replace("-", "_");
match descrs.iter().find(|(name, ..)| *name == option_to_lookup) {
Some((_, setter, type_desc, _)) => {
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
),
),
}
}
}
None => early_error(error_format, &format!("unknown {} option: `{}`", outputname, key)),
}
}
return op;
}
#[allow(non_upper_case_globals)]
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_list: &str = "a space-separated list of strings";
pub const parse_opt_comma_list: &str = "a comma-separated list of strings";
pub const parse_number: &str = "a number";
pub const parse_opt_number: &str = parse_number;
pub const parse_threads: &str = parse_number;
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`, `hwaddress`, `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_instrument_coverage: &str =
"`all` (default), `except-unused-generics`, `except-unused-functions`, or `off`";
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;
pub const parse_wasi_exec_model: &str = "either `command` or `reactor`";
pub const parse_split_debuginfo: &str =
"one of supported split-debuginfo modes (`off` or `dsymutil`)";
}
mod parse {
crate use super::*;
use std::str::FromStr;
crate fn parse_no_flag(slot: &mut bool, v: Option<&str>) -> bool {
match v {
None => {
*slot = true;
true
}
Some(_) => false,
}
}
crate 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,
}
}
crate 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,
}
}
crate fn parse_string(slot: &mut String, v: Option<&str>) -> bool {
match v {
Some(s) => {
*slot = s.to_string();
true
}
None => false,
}
}
crate fn parse_opt_string(slot: &mut Option<String>, v: Option<&str>) -> bool {
match v {
Some(s) => {
*slot = Some(s.to_string());
true
}
None => false,
}
}
crate fn parse_opt_pathbuf(slot: &mut Option<PathBuf>, v: Option<&str>) -> bool {
match v {
Some(s) => {
*slot = Some(PathBuf::from(s));
true
}
None => false,
}
}
crate fn parse_string_push(slot: &mut Vec<String>, v: Option<&str>) -> bool {
match v {
Some(s) => {
slot.push(s.to_string());
true
}
None => false,
}
}
crate 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,
}
}
crate fn parse_opt_comma_list(slot: &mut Option<Vec<String>>, v: Option<&str>) -> bool {
match v {
Some(s) => {
let mut v: Vec<_> = s.split(',').map(|s| s.to_string()).collect();
v.sort_unstable();
*slot = Some(v);
true
}
None => false,
}
}
crate 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,
}
}
crate fn parse_number<T: Copy + FromStr>(slot: &mut T, v: Option<&str>) -> bool {
match v.and_then(|s| s.parse().ok()) {
Some(i) => {
*slot = i;
true
}
None => false,
}
}
crate fn parse_opt_number<T: Copy + FromStr>(slot: &mut Option<T>, v: Option<&str>) -> bool {
match v {
Some(s) => {
*slot = s.parse().ok();
slot.is_some()
}
None => false,
}
}
crate 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
}
}
}
}
crate 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
}
crate 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
}
crate 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,
"hwaddress" => SanitizerSet::HWADDRESS,
_ => return false,
}
}
true
} else {
false
}
}
crate 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,
}
}
crate 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
}
crate 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
}
crate fn parse_linker_flavor(slot: &mut Option<LinkerFlavor>, v: Option<&str>) -> bool {
match v.and_then(LinkerFlavor::from_str) {
Some(lf) => *slot = Some(lf),
_ => return false,
}
true
}
crate 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
}
}
}
crate 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,
}
}
crate 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
}
crate fn parse_instrument_coverage(
slot: &mut Option<InstrumentCoverage>,
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(InstrumentCoverage::All) } else { None };
return true;
}
}
let v = match v {
None => {
*slot = Some(InstrumentCoverage::All);
return true;
}
Some(v) => v,
};
*slot = Some(match v {
"all" => InstrumentCoverage::All,
"except-unused-generics" | "except_unused_generics" => {
InstrumentCoverage::ExceptUnusedGenerics
}
"except-unused-functions" | "except_unused_functions" => {
InstrumentCoverage::ExceptUnusedFunctions
}
"off" | "no" | "n" | "false" | "0" => InstrumentCoverage::Off,
_ => return false,
});
true
}
crate fn parse_treat_err_as_bug(slot: &mut Option<NonZeroUsize>, v: Option<&str>) -> bool {
match v {
Some(s) => {
*slot = s.parse().ok();
slot.is_some()
}
None => {
*slot = NonZeroUsize::new(1);
true
}
}
}
crate 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
}
crate 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
}
crate 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
}
crate 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
}
crate 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
}
crate 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
}
crate 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
}
crate fn parse_symbol_mangling_version(
slot: &mut Option<SymbolManglingVersion>,
v: Option<&str>,
) -> bool {
*slot = match v {
Some("legacy") => Some(SymbolManglingVersion::Legacy),
Some("v0") => Some(SymbolManglingVersion::V0),
_ => return false,
};
true
}
crate 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
}
crate 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,
}
}
crate fn parse_wasi_exec_model(slot: &mut Option<WasiExecModel>, v: Option<&str>) -> bool {
match v {
Some("command") => *slot = Some(WasiExecModel::Command),
Some("reactor") => *slot = Some(WasiExecModel::Reactor),
_ => return false,
}
true
}
crate fn parse_split_debuginfo(slot: &mut Option<SplitDebuginfo>, v: Option<&str>) -> bool {
match v.and_then(|s| SplitDebuginfo::from_str(s).ok()) {
Some(e) => *slot = Some(e),
_ => return false,
}
true
}
}
options! {
CodegenOptions, CG_OPTIONS, "C", "codegen",
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_number, [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_number, [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<u32> = (None, parse_opt_number, [TRACKED],
"set the threshold for inlining a function"),
link_arg: () = ((), 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, [TRACKED],
"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)"),
split_debuginfo: Option<SplitDebuginfo> = (None, parse_split_debuginfo, [TRACKED],
"how to handle split-debuginfo, a platform-specific option"),
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."),
}
options! {
DebuggingOptions, DB_OPTIONS, "Z", "debugging",
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)"),
assume_incomplete_release: bool = (false, parse_bool, [TRACKED],
"make cfg(version) treat the current version as incomplete (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`)"),
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 (and with \
`-Z instrument-coverage`, also create a `.dot` file for the MIR-derived \
coverage graph) (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). If `-Z instrument-coverage` is also enabled, create \
an additional `.html` file showing the computed coverage spans."),
emit_future_incompat_report: bool = (false, parse_bool, [UNTRACKED],
"emits a future-incompatibility report for lints (RFC 2834)"),
emit_stack_sizes: bool = (false, parse_bool, [UNTRACKED],
"emit a section containing stack size metadata (default: no)"),
fewer_names: Option<bool> = (None, parse_opt_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"),
function_sections: Option<bool> = (None, parse_opt_bool, [TRACKED],
"whether each function should go in its own section"),
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_mir: Option<bool> = (None, parse_opt_bool, [TRACKED],
"enable MIR inlining (default: no)"),
inline_mir_threshold: Option<usize> = (None, parse_opt_number, [TRACKED],
"a default MIR inlining threshold (default: 50)"),
inline_mir_hint_threshold: Option<usize> = (None, parse_opt_number, [TRACKED],
"inlining threshold for functions with inline hint (default: 100)"),
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)"),
instrument_coverage: Option<InstrumentCoverage> = (None, parse_instrument_coverage, [TRACKED],
"instrument the generated code to support LLVM source-based code coverage \
reports (note, the compiler build config must include `profiler = true`); \
implies `-Z symbol-mangling-version=v0`. Optional values are:
`=all` (implicit value)
`=except-unused-generics`
`=except-unused-functions`
`=off` (default)"),
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: Option<usize> = (None, parse_opt_number, [TRACKED],
"MIR optimization level (0-4; default: 1 in non optimized builds and 2 in optimized builds)"),
mutable_noalias: Option<bool> = (None, parse_opt_bool, [TRACKED],
"emit noalias metadata for mutable references (default: yes for LLVM >= 12, otherwise no)"),
new_llvm_pass_manager: Option<bool> = (None, parse_opt_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)"),
nll_facts_dir: String = ("nll-facts".to_string(), parse_string, [UNTRACKED],
"the directory the NLL facts are dumped into (default: `nll-facts`)"),
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"),
normalize_docs: bool = (false, parse_bool, [TRACKED],
"normalize associated items in rustdoc when generating documentation"),
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, [TRACKED],
"enable polonius-based borrow-checker (default: no)"),
polymorphize: bool = (false, parse_bool, [TRACKED],
"perform polymorphization analysis"),
pre_link_arg: () = ((), 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)"),
precise_enum_drop_elaboration: bool = (true, parse_bool, [TRACKED],
"use a more precise version of drop elaboration for matches on enums (default: yes). \
This results in better codegen, but has caused miscompilations on some tier 2 platforms. \
See #77382 and #74551."),
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)"),
relax_elf_relocations: Option<bool> = (None, parse_opt_bool, [TRACKED],
"whether ELF relocations can be relaxed"),
relro_level: Option<RelroLevel> = (None, parse_relro_level, [TRACKED],
"choose which RELRO level to use"),
simulate_remapped_rust_src_base: Option<PathBuf> = (None, parse_opt_pathbuf, [TRACKED],
"simulate the effect of remap-debuginfo = true at bootstrapping by remapping path \
to rust's source base directory. only meant for testing purposes"),
report_delayed_bugs: bool = (false, parse_bool, [TRACKED],
"immediately print bugs registered with `delay_span_bug` (default: no)"),
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"),
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`"),
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`, `sha1`, or `sha256`)"),
strip: Strip = (Strip::None, parse_strip, [UNTRACKED],
"tell the linker which information to strip (`none` (default), `debuginfo` or `symbols`)"),
split_dwarf_inlining: bool = (true, parse_bool, [UNTRACKED],
"provide minimal debug info in the object/executable to facilitate online \
symbolication/stack traces in the absence of .dwo/.dwp files when using Split DWARF"),
symbol_mangling_version: Option<SymbolManglingVersion> = (None,
parse_symbol_mangling_version, [TRACKED],
"which mangling version to use for symbol names ('legacy' (default) or 'v0')"),
teach: bool = (false, parse_bool, [TRACKED],
"show extended diagnostic help (default: no)"),
terminal_width: Option<usize> = (None, parse_opt_number, [UNTRACKED],
"set the current terminal width"),
tune_cpu: Option<String> = (None, parse_opt_string, [TRACKED],
"select processor to schedule for (`rustc --print target-cpus` for details)"),
thinlto: Option<bool> = (None, parse_opt_bool, [TRACKED],
"enable ThinLTO when possible"),
thir_unsafeck: bool = (false, parse_bool, [TRACKED],
"use the work-in-progress THIR unsafety checker. NOTE: this is unsound (default: no)"),
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)"),
trap_unreachable: Option<bool> = (None, parse_opt_bool, [TRACKED],
"generate trap instructions for unreachable intrinsics (default: use target setting, usually yes)"),
treat_err_as_bug: Option<NonZeroUsize> = (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 {}`),
`ast-tree` (raw AST before expansion),
`ast-tree,expanded` (raw AST after expansion),
`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)"),
unsound_mir_opts: bool = (false, parse_bool, [TRACKED],
"enable unsound and buggy MIR optimizations (default: no)"),
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)"),
wasi_exec_model: Option<WasiExecModel> = (None, parse_wasi_exec_model, [TRACKED],
"whether to build a wasi command or reactor"),
}
#[derive(Clone, Hash, PartialEq, Eq, Debug)]
pub enum WasiExecModel {
Command,
Reactor,
}