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Rollup merge of #69381 - QuiltOS:no-std-from-config, r=Mark-Simulacrum

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Allow getting `no_std` from the config file

Currently, it is only set correctly in the sanity checking implicit
default fallback code. Having a config file at all will for force
`no_std = false`.
This commit is contained in:
Dylan DPC 2020-02-26 15:34:32 +01:00 committed by GitHub
parent e028f26e1d 4f15867faf
commit d799f2deb1
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 17 additions and 7 deletions
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15
src/bootstrap/config.rs
View file

@ -177,6 +177,15 @@ pub struct Target {
pub no_std: bool,
}
impl Target {
pub fn from_triple(triple: &str) -> Self {
let mut target: Self = Default::default();
if triple.contains("-none-") || triple.contains("nvptx") {
target.no_std = true;
}
target
}
}
/// Structure of the `config.toml` file that configuration is read from.
///
/// This structure uses `Decodable` to automatically decode a TOML configuration
@ -353,6 +362,7 @@ struct TomlTarget {
musl_root: Option<String>,
wasi_root: Option<String>,
qemu_rootfs: Option<String>,
no_std: Option<bool>,
}
impl Config {
@ -595,7 +605,7 @@ pub fn parse(args: &[String]) -> Config {
if let Some(ref t) = toml.target {
for (triple, cfg) in t {
let mut target = Target::default();
let mut target = Target::from_triple(triple);
if let Some(ref s) = cfg.llvm_config {
target.llvm_config = Some(config.src.join(s));
@ -606,6 +616,9 @@ pub fn parse(args: &[String]) -> Config {
if let Some(ref s) = cfg.android_ndk {
target.ndk = Some(config.src.join(s));
}
if let Some(s) = cfg.no_std {
target.no_std = s;
}
target.cc = cfg.cc.clone().map(PathBuf::from);
target.cxx = cfg.cxx.clone().map(PathBuf::from);
target.ar = cfg.ar.clone().map(PathBuf::from);

9
src/bootstrap/sanity.rs
View file

@ -17,6 +17,7 @@
use build_helper::{output, t};
use crate::config::Target;
use crate::Build;
struct Finder {
@ -192,13 +193,9 @@ pub fn check(build: &mut Build) {
panic!("the iOS target is only supported on macOS");
}
build.config.target_config.entry(target.clone()).or_insert(Target::from_triple(target));
if target.contains("-none-") || target.contains("nvptx") {
if build.no_std(*target).is_none() {
let target = build.config.target_config.entry(target.clone()).or_default();
target.no_std = true;
}
if build.no_std(*target) == Some(false) {
panic!("All the *-none-* and nvptx* targets are no-std targets")
}