Do not run run-make tests in the test source directory

src/tools/compiletest/src/runtest.rs

@@ -15,7 +15,7 @@
 use crate::header::TestProps;
 use crate::json;
 use crate::read2::{read2_abbreviated, Truncated};
-use crate::util::{add_dylib_path, dylib_env_var, logv, PathBufExt};
+use crate::util::{add_dylib_path, copy_dir_all, dylib_env_var, logv, PathBufExt};
 use crate::ColorConfig;
 use colored::Colorize;
 use miropt_test_tools::{files_for_miropt_test, MiroptTest, MiroptTestFile};
@@ -3458,6 +3458,21 @@ fn run_rmake_v2_test(&self) {
         let rmake_out_dir = base_dir.join("rmake_out");
         create_dir_all(&rmake_out_dir).unwrap();
 
+        // Copy all input files (apart from rmake.rs) to the temporary directory,
+        // so that the input directory structure from `tests/run-make/<test>` is mirrored
+        // to the `rmake_out` directory.
+        for path in walkdir::WalkDir::new(&self.testpaths.file).min_depth(1) {
+            let path = path.unwrap().path().to_path_buf();
+            if path.file_name().map(|s| s != OsStr::new("rmake.rs")).unwrap_or(false) {
+                let target = rmake_out_dir.join(path.strip_prefix(&self.testpaths.file).unwrap());
+                if path.is_dir() {
+                    copy_dir_all(&path, target).unwrap();
+                } else {
+                    fs::copy(&path, target).unwrap();
+                }
+            }
+        }
+
         // HACK: assume stageN-target, we only want stageN.
         let stage = self.config.stage_id.split('-').next().unwrap();
 
@@ -3559,7 +3574,7 @@ fn run_rmake_v2_test(&self) {
         let target_rpath_env_path = env::join_paths(target_rpath_env_path).unwrap();
 
         let mut cmd = Command::new(&recipe_bin);
-        cmd.current_dir(&self.testpaths.file)
+        cmd.current_dir(&rmake_out_dir)
             .stdout(Stdio::piped())
             .stderr(Stdio::piped())
             .env("LD_LIB_PATH_ENVVAR", dylib_env_var())

src/tools/compiletest/src/util.rs

@@ -1,7 +1,7 @@
 use crate::common::Config;
 use std::env;
 use std::ffi::OsStr;
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 use std::process::Command;
 
 use tracing::*;
@@ -76,3 +76,17 @@ pub fn add_dylib_path(cmd: &mut Command, paths: impl Iterator<Item = impl Into<P
     let new_paths = paths.map(Into::into).chain(old_paths.into_iter().flatten());
     cmd.env(dylib_env_var(), env::join_paths(new_paths).unwrap());
 }
+
+pub fn copy_dir_all(src: impl AsRef<Path>, dst: impl AsRef<Path>) -> std::io::Result<()> {
+    std::fs::create_dir_all(&dst)?;
+    for entry in std::fs::read_dir(src)? {
+        let entry = entry?;
+        let ty = entry.file_type()?;
+        if ty.is_dir() {
+            copy_dir_all(entry.path(), dst.as_ref().join(entry.file_name()))?;
+        } else {
+            std::fs::copy(entry.path(), dst.as_ref().join(entry.file_name()))?;
+        }
+    }
+    Ok(())
+}