Merge commit 'c07d1e2f88cb3b1a0604ae8f18b478c1aeb7a7fa' into sync_cg_clif-2023-10-21

4 files changed, 23 insertions, 3 deletions

diff --git a/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs b/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs
index 31a4b209826..1ed896c6bf0 100644
--- a/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs
+++ b/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs
@@ -1,3 +1,4 @@
+use std::env;
 use std::fs;
 use std::path::{Path, PathBuf};
 use std::process::Command;
@@ -259,6 +260,14 @@ fn build_clif_sysroot_for_triple(
         // inlining.
         rustflags.push("-Zinline-mir".to_owned());
     }
+    if let Some(prefix) = env::var_os("CG_CLIF_STDLIB_REMAP_PATH_PREFIX") {
+        rustflags.push("--remap-path-prefix".to_owned());
+        rustflags.push(format!(
+            "{}={}",
+            STDLIB_SRC.to_path(dirs).to_str().unwrap(),
+            prefix.to_str().unwrap()
+        ));
+    }
     compiler.rustflags.extend(rustflags);
     let mut build_cmd = STANDARD_LIBRARY.build(&compiler, dirs);
     maybe_incremental(&mut build_cmd);
diff --git a/compiler/rustc_codegen_cranelift/build_system/prepare.rs b/compiler/rustc_codegen_cranelift/build_system/prepare.rs
index 16e7a4bafae..c68968b4fde 100644
--- a/compiler/rustc_codegen_cranelift/build_system/prepare.rs
+++ b/compiler/rustc_codegen_cranelift/build_system/prepare.rs
@@ -143,6 +143,7 @@ impl GitRepo {
             RelPath::PATCHES.to_path(dirs).join(format!("{}-lock.toml", self.patch_name));
         let target_lockfile = download_dir.join("Cargo.lock");
         if source_lockfile.exists() {
+            assert!(!target_lockfile.exists());
             fs::copy(source_lockfile, target_lockfile).unwrap();
         } else {
             assert!(target_lockfile.exists());
diff --git a/compiler/rustc_codegen_cranelift/build_system/tests.rs b/compiler/rustc_codegen_cranelift/build_system/tests.rs
index 95ff6b75422..1e24d1b113f 100644
--- a/compiler/rustc_codegen_cranelift/build_system/tests.rs
+++ b/compiler/rustc_codegen_cranelift/build_system/tests.rs
@@ -104,8 +104,8 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[
 pub(crate) static RAND_REPO: GitRepo = GitRepo::github(
     "rust-random",
     "rand",
-    "f3dd0b885c4597b9617ca79987a0dd899ab29fcb",
-    "3f869e4fcd602b66",
+    "9a02c819cc1e4ec6959ae25eafbb5cf6acb68234",
+    "4934f0afb1d1c2ca",
     "rand",
 );
 
@@ -125,7 +125,7 @@ pub(crate) static PORTABLE_SIMD_REPO: GitRepo = GitRepo::github(
     "rust-lang",
     "portable-simd",
     "4825b2a64d765317066948867e8714674419359b",
-    "8b188cc41f5af835",
+    "9e67d07c00f5fb0b",
     "portable-simd",
 );
 
diff --git a/compiler/rustc_codegen_cranelift/build_system/utils.rs b/compiler/rustc_codegen_cranelift/build_system/utils.rs
index 9f24c043a50..149f1618f5c 100644
--- a/compiler/rustc_codegen_cranelift/build_system/utils.rs
+++ b/compiler/rustc_codegen_cranelift/build_system/utils.rs
@@ -42,6 +42,16 @@ impl Compiler {
                     "/usr/s390x-linux-gnu".to_owned(),
                 ];
             }
+            "riscv64gc-unknown-linux-gnu" => {
+                // We are cross-compiling for riscv64. Use the correct linker and run tests in qemu.
+                self.rustflags.push("-Clinker=riscv64-linux-gnu-gcc".to_owned());
+                self.rustdocflags.push("-Clinker=riscv64-linux-gnu-gcc".to_owned());
+                self.runner = vec![
+                    "qemu-riscv64".to_owned(),
+                    "-L".to_owned(),
+                    "/usr/riscv64-linux-gnu".to_owned(),
+                ];
+            }
             "x86_64-pc-windows-gnu" => {
                 // We are cross-compiling for Windows. Run tests in wine.
                 self.runner = vec!["wine".to_owned()];