#[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
pub enum LinkerFlavor {
- Em,
Gcc,
- L4Bender,
Ld,
+ Lld(LldFlavor),
Msvc,
+ EmCc,
+ Bpf,
+ Ptx,
+}
+
+#[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
+pub enum LinkerFlavorCli {
+ Gcc,
+ Ld,
Lld(LldFlavor),
- PtxLinker,
+ Msvc,
+ Em,
BpfLinker,
+ PtxLinker,
}
#[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
}
}
-impl ToJson for LinkerFlavor {
- fn to_json(&self) -> Json {
- self.desc().to_json()
+impl LinkerFlavor {
+ pub fn from_cli(cli: LinkerFlavorCli) -> LinkerFlavor {
+ match cli {
+ LinkerFlavorCli::Gcc => LinkerFlavor::Gcc,
+ LinkerFlavorCli::Ld => LinkerFlavor::Ld,
+ LinkerFlavorCli::Lld(lld_flavor) => LinkerFlavor::Lld(lld_flavor),
+ LinkerFlavorCli::Msvc => LinkerFlavor::Msvc,
+ LinkerFlavorCli::Em => LinkerFlavor::EmCc,
+ LinkerFlavorCli::BpfLinker => LinkerFlavor::Bpf,
+ LinkerFlavorCli::PtxLinker => LinkerFlavor::Ptx,
+ }
+ }
+
+ fn to_cli(self) -> LinkerFlavorCli {
+ match self {
+ LinkerFlavor::Gcc => LinkerFlavorCli::Gcc,
+ LinkerFlavor::Ld => LinkerFlavorCli::Ld,
+ LinkerFlavor::Lld(lld_flavor) => LinkerFlavorCli::Lld(lld_flavor),
+ LinkerFlavor::Msvc => LinkerFlavorCli::Msvc,
+ LinkerFlavor::EmCc => LinkerFlavorCli::Em,
+ LinkerFlavor::Bpf => LinkerFlavorCli::BpfLinker,
+ LinkerFlavor::Ptx => LinkerFlavorCli::PtxLinker,
+ }
}
}
-macro_rules! flavor_mappings {
- ($((($($flavor:tt)*), $string:expr),)*) => (
- impl LinkerFlavor {
+
+macro_rules! linker_flavor_cli_impls {
+ ($(($($flavor:tt)*) $string:literal)*) => (
+ impl LinkerFlavorCli {
pub const fn one_of() -> &'static str {
concat!("one of: ", $($string, " ",)*)
}
- pub fn from_str(s: &str) -> Option<Self> {
+ pub fn from_str(s: &str) -> Option<LinkerFlavorCli> {
Some(match s {
$($string => $($flavor)*,)*
_ => return None,
)
}
-flavor_mappings! {
- ((LinkerFlavor::Em), "em"),
- ((LinkerFlavor::Gcc), "gcc"),
- ((LinkerFlavor::L4Bender), "l4-bender"),
- ((LinkerFlavor::Ld), "ld"),
- ((LinkerFlavor::Msvc), "msvc"),
- ((LinkerFlavor::PtxLinker), "ptx-linker"),
- ((LinkerFlavor::BpfLinker), "bpf-linker"),
- ((LinkerFlavor::Lld(LldFlavor::Wasm)), "wasm-ld"),
- ((LinkerFlavor::Lld(LldFlavor::Ld64)), "ld64.lld"),
- ((LinkerFlavor::Lld(LldFlavor::Ld)), "ld.lld"),
- ((LinkerFlavor::Lld(LldFlavor::Link)), "lld-link"),
+linker_flavor_cli_impls! {
+ (LinkerFlavorCli::Gcc) "gcc"
+ (LinkerFlavorCli::Ld) "ld"
+ (LinkerFlavorCli::Lld(LldFlavor::Ld)) "ld.lld"
+ (LinkerFlavorCli::Lld(LldFlavor::Ld64)) "ld64.lld"
+ (LinkerFlavorCli::Lld(LldFlavor::Link)) "lld-link"
+ (LinkerFlavorCli::Lld(LldFlavor::Wasm)) "wasm-ld"
+ (LinkerFlavorCli::Msvc) "msvc"
+ (LinkerFlavorCli::Em) "em"
+ (LinkerFlavorCli::BpfLinker) "bpf-linker"
+ (LinkerFlavorCli::PtxLinker) "ptx-linker"
+}
+
+impl ToJson for LinkerFlavorCli {
+ fn to_json(&self) -> Json {
+ self.desc().to_json()
+ }
}
#[derive(Clone, Copy, Debug, PartialEq, Hash, Encodable, Decodable, HashStable_Generic)]
}
pub type LinkArgs = BTreeMap<LinkerFlavor, Vec<StaticCow<str>>>;
+pub type LinkArgsCli = BTreeMap<LinkerFlavorCli, Vec<StaticCow<str>>>;
/// Which kind of debuginfo does the target use?
///
("sparc64-unknown-linux-gnu", sparc64_unknown_linux_gnu),
("arm-unknown-linux-gnueabi", arm_unknown_linux_gnueabi),
("arm-unknown-linux-gnueabihf", arm_unknown_linux_gnueabihf),
+ ("armeb-unknown-linux-gnueabi", armeb_unknown_linux_gnueabi),
("arm-unknown-linux-musleabi", arm_unknown_linux_musleabi),
("arm-unknown-linux-musleabihf", arm_unknown_linux_musleabihf),
("armv4t-unknown-linux-gnueabi", armv4t_unknown_linux_gnueabi),
pub abi: StaticCow<str>,
/// Vendor name to use for conditional compilation (`target_vendor`). Defaults to "unknown".
pub vendor: StaticCow<str>,
- /// Default linker flavor used if `-C linker-flavor` or `-C linker` are not passed
- /// on the command line. Defaults to `LinkerFlavor::Gcc`.
- pub linker_flavor: LinkerFlavor,
/// Linker to invoke
pub linker: Option<StaticCow<str>>,
-
+ /// Default linker flavor used if `-C linker-flavor` or `-C linker` are not passed
+ /// on the command line. Defaults to `LinkerFlavor::Gcc`.
+ pub linker_flavor: LinkerFlavor,
+ linker_flavor_json: LinkerFlavorCli,
/// LLD flavor used if `lld` (or `rust-lld`) is specified as a linker
/// without clarifying its flavor in any way.
+ /// FIXME: Merge this into `LinkerFlavor`.
pub lld_flavor: LldFlavor,
+ /// Whether the linker support GNU-like arguments such as -O. Defaults to true.
+ /// FIXME: Merge this into `LinkerFlavor`.
+ pub linker_is_gnu: bool,
- /// Linker arguments that are passed *before* any user-defined libraries.
- pub pre_link_args: LinkArgs,
/// Objects to link before and after all other object code.
pub pre_link_objects: CrtObjects,
pub post_link_objects: CrtObjects,
pub post_link_objects_self_contained: CrtObjects,
pub link_self_contained: LinkSelfContainedDefault,
+ /// Linker arguments that are passed *before* any user-defined libraries.
+ pub pre_link_args: LinkArgs,
+ pre_link_args_json: LinkArgsCli,
/// Linker arguments that are unconditionally passed after any
/// user-defined but before post-link objects. Standard platform
/// libraries that should be always be linked to, usually go here.
pub late_link_args: LinkArgs,
+ late_link_args_json: LinkArgsCli,
/// Linker arguments used in addition to `late_link_args` if at least one
/// Rust dependency is dynamically linked.
pub late_link_args_dynamic: LinkArgs,
+ late_link_args_dynamic_json: LinkArgsCli,
/// Linker arguments used in addition to `late_link_args` if all Rust
/// dependencies are statically linked.
pub late_link_args_static: LinkArgs,
+ late_link_args_static_json: LinkArgsCli,
/// Linker arguments that are unconditionally passed *after* any
/// user-defined libraries.
pub post_link_args: LinkArgs,
+ post_link_args_json: LinkArgsCli,
+
/// Optional link script applied to `dylib` and `executable` crate types.
/// This is a string containing the script, not a path. Can only be applied
/// to linkers where `linker_is_gnu` is true.
pub link_script: Option<StaticCow<str>>,
-
/// Environment variables to be set for the linker invocation.
pub link_env: StaticCow<[(StaticCow<str>, StaticCow<str>)]>,
/// Environment variables to be removed for the linker invocation.
pub abi_return_struct_as_int: bool,
/// Whether the target toolchain is like macOS's. Only useful for compiling against iOS/macOS,
/// in particular running dsymutil and some other stuff like `-dead_strip`. Defaults to false.
+ /// Also indiates whether to use Apple-specific ABI changes, such as extending function
+ /// parameters to 32-bits.
pub is_like_osx: bool,
/// Whether the target toolchain is like Solaris's.
/// Only useful for compiling against Illumos/Solaris,
/// Default supported version of DWARF on this platform.
/// Useful because some platforms (osx, bsd) only want up to DWARF2.
pub default_dwarf_version: u32,
- /// Whether the linker support GNU-like arguments such as -O. Defaults to true.
- pub linker_is_gnu: bool,
/// The MinGW toolchain has a known issue that prevents it from correctly
/// handling COFF object files with more than 2<sup>15</sup> sections. Since each weak
/// symbol needs its own COMDAT section, weak linkage implies a large
LinkerFlavor::Lld(lld_flavor) => {
panic!("add_link_args: use non-LLD flavor for {:?}", lld_flavor)
}
- LinkerFlavor::Gcc
- | LinkerFlavor::Em
- | LinkerFlavor::L4Bender
- | LinkerFlavor::BpfLinker
- | LinkerFlavor::PtxLinker => {}
+ LinkerFlavor::Gcc | LinkerFlavor::EmCc | LinkerFlavor::Bpf | LinkerFlavor::Ptx => {}
}
}
fn add_post_link_args(&mut self, flavor: LinkerFlavor, args: &[&'static str]) {
add_link_args(&mut self.post_link_args, flavor, args);
}
+
+ fn update_from_cli(&mut self) {
+ self.linker_flavor = LinkerFlavor::from_cli(self.linker_flavor_json);
+ for (args, args_json) in [
+ (&mut self.pre_link_args, &self.pre_link_args_json),
+ (&mut self.late_link_args, &self.late_link_args_json),
+ (&mut self.late_link_args_dynamic, &self.late_link_args_dynamic_json),
+ (&mut self.late_link_args_static, &self.late_link_args_static_json),
+ (&mut self.post_link_args, &self.post_link_args_json),
+ ] {
+ *args = args_json
+ .iter()
+ .map(|(flavor, args)| (LinkerFlavor::from_cli(*flavor), args.clone()))
+ .collect();
+ }
+ }
+
+ fn update_to_cli(&mut self) {
+ self.linker_flavor_json = self.linker_flavor.to_cli();
+ for (args, args_json) in [
+ (&self.pre_link_args, &mut self.pre_link_args_json),
+ (&self.late_link_args, &mut self.late_link_args_json),
+ (&self.late_link_args_dynamic, &mut self.late_link_args_dynamic_json),
+ (&self.late_link_args_static, &mut self.late_link_args_static_json),
+ (&self.post_link_args, &mut self.post_link_args_json),
+ ] {
+ *args_json =
+ args.iter().map(|(flavor, args)| (flavor.to_cli(), args.clone())).collect();
+ }
+ }
}
impl Default for TargetOptions {
env: "".into(),
abi: "".into(),
vendor: "unknown".into(),
- linker_flavor: LinkerFlavor::Gcc,
linker: option_env!("CFG_DEFAULT_LINKER").map(|s| s.into()),
+ linker_flavor: LinkerFlavor::Gcc,
+ linker_flavor_json: LinkerFlavorCli::Gcc,
lld_flavor: LldFlavor::Ld,
- pre_link_args: LinkArgs::new(),
- post_link_args: LinkArgs::new(),
+ linker_is_gnu: true,
link_script: None,
asm_args: cvs![],
cpu: "generic".into(),
is_like_msvc: false,
is_like_wasm: false,
default_dwarf_version: 4,
- linker_is_gnu: true,
allows_weak_linkage: true,
has_rpath: false,
no_default_libraries: true,
pre_link_objects_self_contained: Default::default(),
post_link_objects_self_contained: Default::default(),
link_self_contained: LinkSelfContainedDefault::False,
+ pre_link_args: LinkArgs::new(),
+ pre_link_args_json: LinkArgsCli::new(),
late_link_args: LinkArgs::new(),
+ late_link_args_json: LinkArgsCli::new(),
late_link_args_dynamic: LinkArgs::new(),
+ late_link_args_dynamic_json: LinkArgsCli::new(),
late_link_args_static: LinkArgs::new(),
+ late_link_args_static_json: LinkArgsCli::new(),
+ post_link_args: LinkArgs::new(),
+ post_link_args_json: LinkArgsCli::new(),
link_env: cvs![],
link_env_remove: cvs![],
archive_format: "gnu".into(),
Some(Ok(()))
})).unwrap_or(Ok(()))
} );
- ($key_name:ident, LinkerFlavor) => ( {
- let name = (stringify!($key_name)).replace("_", "-");
- obj.remove(&name).and_then(|o| o.as_str().and_then(|s| {
- match LinkerFlavor::from_str(s) {
+ ($key_name:ident = $json_name:expr, LinkerFlavor) => ( {
+ let name = $json_name;
+ obj.remove(name).and_then(|o| o.as_str().and_then(|s| {
+ match LinkerFlavorCli::from_str(s) {
Some(linker_flavor) => base.$key_name = linker_flavor,
_ => return Some(Err(format!("'{}' is not a valid value for linker-flavor. \
- Use {}", s, LinkerFlavor::one_of()))),
+ Use {}", s, LinkerFlavorCli::one_of()))),
}
Some(Ok(()))
})).unwrap_or(Ok(()))
base.$key_name = args;
}
} );
- ($key_name:ident, link_args) => ( {
- let name = (stringify!($key_name)).replace("_", "-");
- if let Some(val) = obj.remove(&name) {
+ ($key_name:ident = $json_name:expr, link_args) => ( {
+ let name = $json_name;
+ if let Some(val) = obj.remove(name) {
let obj = val.as_object().ok_or_else(|| format!("{}: expected a \
JSON object with fields per linker-flavor.", name))?;
- let mut args = LinkArgs::new();
+ let mut args = LinkArgsCli::new();
for (k, v) in obj {
- let flavor = LinkerFlavor::from_str(&k).ok_or_else(|| {
+ let flavor = LinkerFlavorCli::from_str(&k).ok_or_else(|| {
format!("{}: '{}' is not a valid value for linker-flavor. \
Use 'em', 'gcc', 'ld' or 'msvc'", name, k)
})?;
key!(env);
key!(abi);
key!(vendor);
- key!(linker_flavor, LinkerFlavor)?;
key!(linker, optional);
+ key!(linker_flavor_json = "linker-flavor", LinkerFlavor)?;
key!(lld_flavor, LldFlavor)?;
+ key!(linker_is_gnu, bool);
key!(pre_link_objects = "pre-link-objects", link_objects);
key!(post_link_objects = "post-link-objects", link_objects);
key!(pre_link_objects_self_contained = "pre-link-objects-fallback", link_objects);
key!(post_link_objects_self_contained = "post-link-objects-fallback", link_objects);
key!(link_self_contained = "crt-objects-fallback", link_self_contained)?;
- key!(pre_link_args, link_args);
- key!(late_link_args, link_args);
- key!(late_link_args_dynamic, link_args);
- key!(late_link_args_static, link_args);
- key!(post_link_args, link_args);
+ key!(pre_link_args_json = "pre-link-args", link_args);
+ key!(late_link_args_json = "late-link-args", link_args);
+ key!(late_link_args_dynamic_json = "late-link-args-dynamic", link_args);
+ key!(late_link_args_static_json = "late-link-args-static", link_args);
+ key!(post_link_args_json = "post-link-args", link_args);
key!(link_script, optional);
key!(link_env, env);
key!(link_env_remove, list);
key!(is_like_msvc, bool);
key!(is_like_wasm, bool);
key!(default_dwarf_version, u32);
- key!(linker_is_gnu, bool);
key!(allows_weak_linkage, bool);
key!(has_rpath, bool);
key!(no_default_libraries, bool);
// This can cause unfortunate ICEs later down the line.
return Err("may not set is_builtin for targets not built-in".into());
}
+ base.update_from_cli();
+
// Each field should have been read using `Json::remove` so any keys remaining are unused.
let remaining_keys = obj.keys();
Ok((
fn to_json(&self) -> Json {
let mut d = serde_json::Map::new();
let default: TargetOptions = Default::default();
+ let mut target = self.clone();
+ target.update_to_cli();
macro_rules! target_val {
($attr:ident) => {{
let name = (stringify!($attr)).replace("_", "-");
- d.insert(name, self.$attr.to_json());
+ d.insert(name, target.$attr.to_json());
}};
}
macro_rules! target_option_val {
($attr:ident) => {{
let name = (stringify!($attr)).replace("_", "-");
- if default.$attr != self.$attr {
- d.insert(name, self.$attr.to_json());
+ if default.$attr != target.$attr {
+ d.insert(name, target.$attr.to_json());
}
}};
- ($attr:ident, $key_name:expr) => {{
- let name = $key_name;
- if default.$attr != self.$attr {
- d.insert(name.into(), self.$attr.to_json());
+ ($attr:ident, $json_name:expr) => {{
+ let name = $json_name;
+ if default.$attr != target.$attr {
+ d.insert(name.into(), target.$attr.to_json());
}
}};
- (link_args - $attr:ident) => {{
- let name = (stringify!($attr)).replace("_", "-");
- if default.$attr != self.$attr {
- let obj = self
+ (link_args - $attr:ident, $json_name:expr) => {{
+ let name = $json_name;
+ if default.$attr != target.$attr {
+ let obj = target
.$attr
.iter()
.map(|(k, v)| (k.desc().to_string(), v.clone()))
.collect::<BTreeMap<_, _>>();
- d.insert(name, obj.to_json());
+ d.insert(name.to_string(), obj.to_json());
}
}};
(env - $attr:ident) => {{
let name = (stringify!($attr)).replace("_", "-");
- if default.$attr != self.$attr {
- let obj = self
+ if default.$attr != target.$attr {
+ let obj = target
.$attr
.iter()
.map(|&(ref k, ref v)| format!("{k}={v}"))
target_option_val!(env);
target_option_val!(abi);
target_option_val!(vendor);
- target_option_val!(linker_flavor);
target_option_val!(linker);
+ target_option_val!(linker_flavor_json, "linker-flavor");
target_option_val!(lld_flavor);
+ target_option_val!(linker_is_gnu);
target_option_val!(pre_link_objects);
target_option_val!(post_link_objects);
target_option_val!(pre_link_objects_self_contained, "pre-link-objects-fallback");
target_option_val!(post_link_objects_self_contained, "post-link-objects-fallback");
target_option_val!(link_self_contained, "crt-objects-fallback");
- target_option_val!(link_args - pre_link_args);
- target_option_val!(link_args - late_link_args);
- target_option_val!(link_args - late_link_args_dynamic);
- target_option_val!(link_args - late_link_args_static);
- target_option_val!(link_args - post_link_args);
+ target_option_val!(link_args - pre_link_args_json, "pre-link-args");
+ target_option_val!(link_args - late_link_args_json, "late-link-args");
+ target_option_val!(link_args - late_link_args_dynamic_json, "late-link-args-dynamic");
+ target_option_val!(link_args - late_link_args_static_json, "late-link-args-static");
+ target_option_val!(link_args - post_link_args_json, "post-link-args");
target_option_val!(link_script);
target_option_val!(env - link_env);
target_option_val!(link_env_remove);
target_option_val!(is_like_msvc);
target_option_val!(is_like_wasm);
target_option_val!(default_dwarf_version);
- target_option_val!(linker_is_gnu);
target_option_val!(allows_weak_linkage);
target_option_val!(has_rpath);
target_option_val!(no_default_libraries);
projects / rust.git / blobdiff