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miri: make --stage 0 testing work

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This commit is contained in:
Ralf Jung 2022-07-22 07:49:20 -04:00
parent e7a9c11416
commit ae22ae1358
1 changed files with 8 additions and 0 deletions
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8
src/bootstrap/test.rs
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@ -475,6 +475,9 @@ impl Step for Miri {
let stage = self.stage;
let host = self.host;
let compiler = builder.compiler(stage, host);
// We need the stdlib for the *next* stage, as it was built with this compiler that also built Miri.
// Except if we are at stage 2, the bootstrap loop is complete and we can stick with our current stage.
let compiler_std = builder.compiler(if stage < 2 { stage + 1 } else { stage }, host);
let miri =
builder.ensure(tool::Miri { compiler, target: self.host, extra_features: Vec::new() });
@ -483,6 +486,10 @@ impl Step for Miri {
target: self.host,
extra_features: Vec::new(),
});
// The stdlib we need might be at a different stage. And just asking for the
// sysroot does not seem to populate it, so we do that first.
builder.ensure(compile::Std::new(compiler_std, host));
let sysroot = builder.sysroot(compiler_std);
if let (Some(miri), Some(_cargo_miri)) = (miri, cargo_miri) {
let mut cargo =
builder.cargo(compiler, Mode::ToolRustc, SourceType::Submodule, host, "install");
@ -562,6 +569,7 @@ impl Step for Miri {
// miri tests need to know about the stage sysroot
cargo.env("MIRI_SYSROOT", miri_sysroot);
cargo.env("MIRI_HOST_SYSROOT", sysroot);
cargo.env("RUSTC_LIB_PATH", builder.rustc_libdir(compiler));
cargo.env("MIRI", miri);