Skip to content

skip sanity check for non-host targets in check builds #121907

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Mar 11, 2024
Merged

skip sanity check for non-host targets in check builds #121907

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
17 changes: 7 additions & 10 deletions src/bootstrap/src/core/sanity.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@ use std::fs;
use std::path::PathBuf;
use std::process::Command;

use crate::builder::Kind;
use crate::core::config::Target;
use crate::utils::helpers::output;
use crate::Build;
Expand Down Expand Up @@ -64,6 +65,8 @@ pub fn check(build: &mut Build) {
let mut skip_target_sanity =
env::var_os("BOOTSTRAP_SKIP_TARGET_SANITY").is_some_and(|s| s == "1" || s == "true");

skip_target_sanity |= build.config.cmd.kind() == Kind::Check;

// Skip target sanity checks when we are doing anything with mir-opt tests or Miri
let skipped_paths = [OsStr::new("mir-opt"), OsStr::new("miri")];
skip_target_sanity |= build.config.paths.iter().any(|path| {
Expand Down Expand Up @@ -169,11 +172,8 @@ than building it.
continue;
}

// Some environments don't want or need these tools, such as when testing Miri.
// FIXME: it would be better to refactor this code to split necessary setup from pure sanity
// checks, and have a regular flag for skipping the latter. Also see
// <https://github.com/rust-lang/rust/pull/103569#discussion_r1008741742>.
if skip_target_sanity {
// skip check for cross-targets
if skip_target_sanity && target != &build.build {
Copy link
Member

@saethlin saethlin Mar 2, 2024

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Does target != &build.build mean "target is the host"?

Copy link
Contributor Author

@onur-ozkan onur-ozkan Mar 2, 2024

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

It means target is not host.

Copy link
Member

@RalfJung RalfJung Mar 10, 2024 •
edited
Loading

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Seems worth a comment somewhere to explain that we interpret skip_target_sanity to mean "skip checks for non-host targets".

It's not clear that build is the "host" target, that seems to diverge from the usual Rust naming conventions. There's no doc comment there either, in fact looking at struct Build it gets even more confusing

    // Targets for which to build
    build: TargetSelection,
    hosts: Vec<TargetSelection>,
    targets: Vec<TargetSelection>,

How can there be more than one host...?

Is this using GCC/autotools naming conventions rather than Rust naming conventions? That would be quite confusing.

Copy link
Contributor Author

@onur-ozkan onur-ozkan Mar 10, 2024

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Fields of Build represents these from the configuration:

rust/config.example.toml

Lines 184 to 210 in cdb775c

# Build triple for the pre-compiled snapshot compiler. If `rustc` is set, this must match its host
# triple (see `rustc --version --verbose`; cross-compiling the rust build system itself is NOT
# supported). If `rustc` is unset, this must be a platform with pre-compiled host tools
# (https://doc.rust-lang.org/nightly/rustc/platform-support.html). The current platform must be
# able to run binaries of this build triple.
#
# If `rustc` is present in path, this defaults to the host it was compiled for.
# Otherwise, `x.py` will try to infer it from the output of `uname`.
# If `uname` is not found in PATH, we assume this is `x86_64-pc-windows-msvc`.
# This may be changed in the future.
#build = "x86_64-unknown-linux-gnu" (as an example)
# Which triples to produce a compiler toolchain for. Each of these triples will be bootstrapped from
# the build triple themselves. In other words, this is the list of triples for which to build a
# compiler that can RUN on that triple.
#
# Defaults to just the `build` triple.
#host = [build.build] (list of triples)
# Which triples to build libraries (core/alloc/std/test/proc_macro) for. Each of these triples will
# be bootstrapped from the build triple themselves. In other words, this is the list of triples for
# which to build a library that can CROSS-COMPILE to that triple.
#
# Defaults to `host`. If you set this explicitly, you likely want to add all
# host triples to this list as well in order for those host toolchains to be
# able to compile programs for their native target.
#target = build.host (list of triples)

Seems worth a comment somewhere to explain that we interpret skip_target_sanity to mean "skip checks for non-host targets".

Sure

Copy link
Member

@RalfJung RalfJung Mar 10, 2024

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Fields of Build represents these from the configuration:

Ah, thanks for the link!

continue;
}

Expand Down Expand Up @@ -215,11 +215,8 @@ than building it.
panic!("All the *-none-* and nvptx* targets are no-std targets")
}

// Some environments don't want or need these tools, such as when testing Miri.
// FIXME: it would be better to refactor this code to split necessary setup from pure sanity
// checks, and have a regular flag for skipping the latter. Also see
// <https://github.com/rust-lang/rust/pull/103569#discussion_r1008741742>.
if skip_target_sanity {
// skip check for cross-targets
if skip_target_sanity && target != &build.build {
continue;
}

Expand Down