rewrite cross-lang-lto to rmake

src/tools/run-make-support/src/external_deps/llvm.rs

@@ -42,6 +42,12 @@ pub fn llvm_nm() -> LlvmNm {
     LlvmNm::new()
 }
 
+/// Construct a new `llvm-bcanalyzer` invocation. This assumes that `llvm-bcanalyzer` is available
+/// at `$LLVM_BIN_DIR/llvm-bcanalyzer`.
+pub fn llvm_bcanalyzer() -> LlvmBcanalyzer {
+    LlvmBcanalyzer::new()
+}
+
 /// A `llvm-readobj` invocation builder.
 #[derive(Debug)]
 #[must_use]
@@ -84,12 +90,20 @@ pub struct LlvmNm {
     cmd: Command,
 }
 
+/// A `llvm-bcanalyzer` invocation builder.
+#[derive(Debug)]
+#[must_use]
+pub struct LlvmBcanalyzer {
+    cmd: Command,
+}
+
 crate::macros::impl_common_helpers!(LlvmReadobj);
 crate::macros::impl_common_helpers!(LlvmProfdata);
 crate::macros::impl_common_helpers!(LlvmFilecheck);
 crate::macros::impl_common_helpers!(LlvmObjdump);
 crate::macros::impl_common_helpers!(LlvmAr);
 crate::macros::impl_common_helpers!(LlvmNm);
+crate::macros::impl_common_helpers!(LlvmBcanalyzer);
 
 /// Generate the path to the bin directory of LLVM.
 #[must_use]
@@ -250,6 +264,12 @@ impl LlvmAr {
         self
     }
 
+    /// Extract archive members back to files.
+    pub fn extract(&mut self) -> &mut Self {
+        self.cmd.arg("x");
+        self
+    }
+
     /// Provide an output, then an input file. Bundled in one function, as llvm-ar has
     /// no "--output"-style flag.
     pub fn output_input(&mut self, out: impl AsRef<Path>, input: impl AsRef<Path>) -> &mut Self {
@@ -274,3 +294,19 @@ impl LlvmNm {
         self
     }
 }
+
+impl LlvmBcanalyzer {
+    /// Construct a new `llvm-bcanalyzer` invocation. This assumes that `llvm-bcanalyzer` is available
+    /// at `$LLVM_BIN_DIR/llvm-bcanalyzer`.
+    pub fn new() -> Self {
+        let llvm_bcanalyzer = llvm_bin_dir().join("llvm-bcanalyzer");
+        let cmd = Command::new(llvm_bcanalyzer);
+        Self { cmd }
+    }
+
+    /// Provide an input file.
+    pub fn input<P: AsRef<Path>>(&mut self, path: P) -> &mut Self {
+        self.cmd.arg(path.as_ref());
+        self
+    }
+}

src/tools/run-make-support/src/lib.rs

@@ -48,8 +48,8 @@ pub use cc::{cc, cxx, extra_c_flags, extra_cxx_flags, Cc};
 pub use clang::{clang, Clang};
 pub use htmldocck::htmldocck;
 pub use llvm::{
-    llvm_ar, llvm_filecheck, llvm_nm, llvm_objdump, llvm_profdata, llvm_readobj, LlvmAr,
-    LlvmFilecheck, LlvmNm, LlvmObjdump, LlvmProfdata, LlvmReadobj,
+    llvm_ar, llvm_bcanalyzer, llvm_filecheck, llvm_nm, llvm_objdump, llvm_profdata, llvm_readobj,
+    LlvmAr, LlvmBcanalyzer, LlvmFilecheck, LlvmNm, LlvmObjdump, LlvmProfdata, LlvmReadobj,
 };
 pub use python::python_command;
 pub use rustc::{aux_build, bare_rustc, rustc, Rustc};

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -4,7 +4,6 @@ run-make/cdylib-dylib-linkage/Makefile
 run-make/cross-lang-lto-clang/Makefile
 run-make/cross-lang-lto-pgo-smoketest/Makefile
 run-make/cross-lang-lto-upstream-rlibs/Makefile
-run-make/cross-lang-lto/Makefile
 run-make/dep-info-doesnt-run-much/Makefile
 run-make/dep-info-spaces/Makefile
 run-make/dep-info/Makefile