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Allow getting no_std from the config file #69381

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Merged
merged 2 commits into from
Feb 26, 2020
Merged

Allow getting no_std from the config file #69381

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03ca0e2
Allow getting `no_std` from the config file
Ericson2314 Feb 22, 2020
4f15867
bootstrap: Further centralize target defaulting logic.
Ericson2314 Feb 25, 2020
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15 changes: 14 additions & 1 deletion src/bootstrap/config.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -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
Expand Down Expand Up @@ -353,6 +362,7 @@ struct TomlTarget {
musl_root: Option<String>,
wasi_root: Option<String>,
qemu_rootfs: Option<String>,
no_std: Option<bool>,
}

impl Config {
Expand Down Expand Up @@ -595,7 +605,7 @@ impl 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));
Expand All @@ -606,6 +616,9 @@ impl 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);
Expand Down
9 changes: 3 additions & 6 deletions src/bootstrap/sanity.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ use std::process::Command;

use build_helper::{output, t};

use crate::config::Target;
use crate::Build;

struct Finder {
Expand Down Expand Up @@ -192,13 +193,9 @@ pub fn check(build: &mut Build) {
panic!("the iOS target is only supported on macOS");
}

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;
}
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) == Some(false) {
panic!("All the *-none-* and nvptx* targets are no-std targets")
}
Expand Down