diff options
| -rw-r--r-- | src/bootstrap/bin/rustc.rs | 7 | ||||
| -rw-r--r-- | src/bootstrap/test.rs | 82 |
2 files changed, 76 insertions, 13 deletions
diff --git a/src/bootstrap/bin/rustc.rs b/src/bootstrap/bin/rustc.rs index 672b2ee1443..54b689fb062 100644 --- a/src/bootstrap/bin/rustc.rs +++ b/src/bootstrap/bin/rustc.rs @@ -143,8 +143,11 @@ fn main() { if let Some(target) = target { // The stage0 compiler has a special sysroot distinct from what we - // actually downloaded, so we just always pass the `--sysroot` option. - cmd.arg("--sysroot").arg(&sysroot); + // actually downloaded, so we just always pass the `--sysroot` option, + // unless one is already set. + if !args.iter().any(|arg| arg == "--sysroot") { + cmd.arg("--sysroot").arg(&sysroot); + } cmd.arg("-Zexternal-macro-backtrace"); diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs index e5b0a46ba6f..5a1f8ead9f2 100644 --- a/src/bootstrap/test.rs +++ b/src/bootstrap/test.rs @@ -389,26 +389,86 @@ impl Step for Miri { extra_features: Vec::new(), }); if let Some(miri) = miri { - let mut cargo = tool::prepare_tool_cargo(builder, - compiler, - Mode::ToolRustc, - host, - "test", - "src/tools/miri", - SourceType::Submodule, - &[]); + // # Run `cargo miri setup`. + let mut cargo = tool::prepare_tool_cargo( + builder, + compiler, + Mode::ToolRustc, + host, + "run", + "src/tools/miri", + SourceType::Submodule, + &[], + ); + cargo + .arg("--bin") + .arg("cargo-miri") + .arg("--") + .arg("miri") + .arg("setup"); + + // Tell `cargo miri` not to worry about the sysroot mismatch (we built with + // stage1 but run with stage2). + cargo.env("MIRI_SKIP_SYSROOT_CHECK", "1"); + // Tell `cargo miri setup` where to find the sources. + cargo.env("XARGO_RUST_SRC", builder.src.join("src")); + // Make sure the libstd gets built without debug assertions. + cargo.env("RUSTC_DEBUG_ASSERTIONS", "false"); + + if !try_run(builder, &mut cargo) { + return; + } + + // # Determine where Miri put its sysroot. + // To this end, we run `cargo miri setup --env` and capture the output. + // (We do this separately from the above so that when the setup actually + // happens we get some output.) + // We re-use the `cargo` from above. + cargo.arg("--env"); + + // FIXME: Is there a way in which we can re-use the usual `run` helpers? + let miri_sysroot = if builder.config.dry_run { + String::new() + } else { + let out = cargo.output() + .expect("We already ran `cargo miri setup` before and that worked"); + assert!(out.status.success(), "`cargo miri setup` returned with non-0 exit code"); + // Output is "MIRI_SYSROOT=<str>\n". + let stdout = String::from_utf8(out.stdout) + .expect("`cargo miri setup` stdout is not valid UTF-8"); + let stdout = stdout.trim(); + builder.verbose(&format!("`cargo miri setup --env` returned: {:?}", stdout)); + let sysroot = stdout.splitn(2, '=') + .nth(1).expect("`cargo miri setup` stdout did not contain '='"); + sysroot.to_owned() + }; + + // # Run `cargo test`. + let mut cargo = tool::prepare_tool_cargo( + builder, + compiler, + Mode::ToolRustc, + host, + "test", + "src/tools/miri", + SourceType::Submodule, + &[], + ); // miri tests need to know about the stage sysroot - cargo.env("MIRI_SYSROOT", builder.sysroot(compiler)); + cargo.env("MIRI_SYSROOT", miri_sysroot); cargo.env("RUSTC_TEST_SUITE", builder.rustc(compiler)); cargo.env("RUSTC_LIB_PATH", builder.rustc_libdir(compiler)); cargo.env("MIRI_PATH", miri); builder.add_rustc_lib_path(compiler, &mut cargo); - if try_run(builder, &mut cargo) { - builder.save_toolstate("miri", ToolState::TestPass); + if !try_run(builder, &mut cargo) { + return; } + + // # Done! + builder.save_toolstate("miri", ToolState::TestPass); } else { eprintln!("failed to test miri: could not build"); } |