Rollup merge of #107127 - uweigand:s390x-sanitizer, r=Mark-Simulacrum

Enable sanitizers for s390x-linux

Include sanitizers supported by LLVM on s390x (asan, lsan, msan, tsan) in the target definition, as well as in the compiletest supported list.

Build sanitizer runtime for the target.  Enable sanitizers in the CI.

Author: matthiaskrgr

Diff for: compiler/rustc_target/src/spec/s390x_unknown_linux_gnu.rs

@@ -1,5 +1,5 @@
 use crate::abi::Endian;
-use crate::spec::{StackProbeType, Target};
+use crate::spec::{SanitizerSet, StackProbeType, Target};
 
 pub fn target() -> Target {
     let mut base = super::linux_gnu_base::opts();
@@ -13,6 +13,8 @@ pub fn target() -> Target {
     base.max_atomic_width = Some(64);
     base.min_global_align = Some(16);
     base.stack_probes = StackProbeType::Inline;
+    base.supported_sanitizers =
+        SanitizerSet::ADDRESS | SanitizerSet::LEAK | SanitizerSet::MEMORY | SanitizerSet::THREAD;
 
     Target {
         llvm_target: "s390x-unknown-linux-gnu".into(),

Diff for: compiler/rustc_target/src/spec/s390x_unknown_linux_musl.rs

@@ -1,5 +1,5 @@
 use crate::abi::Endian;
-use crate::spec::{StackProbeType, Target};
+use crate::spec::{SanitizerSet, StackProbeType, Target};
 
 pub fn target() -> Target {
     let mut base = super::linux_musl_base::opts();
@@ -14,6 +14,8 @@ pub fn target() -> Target {
     base.min_global_align = Some(16);
     base.static_position_independent_executables = true;
     base.stack_probes = StackProbeType::Inline;
+    base.supported_sanitizers =
+        SanitizerSet::ADDRESS | SanitizerSet::LEAK | SanitizerSet::MEMORY | SanitizerSet::THREAD;
 
     Target {
         llvm_target: "s390x-unknown-linux-musl".into(),

Diff for: src/bootstrap/native.rs

@@ -1105,6 +1105,12 @@ fn supported_sanitizers(
         "x86_64-unknown-linux-musl" => {
             common_libs("linux", "x86_64", &["asan", "lsan", "msan", "tsan"])
         }
+        "s390x-unknown-linux-gnu" => {
+            common_libs("linux", "s390x", &["asan", "lsan", "msan", "tsan"])
+        }
+        "s390x-unknown-linux-musl" => {
+            common_libs("linux", "s390x", &["asan", "lsan", "msan", "tsan"])
+        }
         _ => Vec::new(),
     }
 }

Diff for: src/ci/docker/host-x86_64/dist-s390x-linux/Dockerfile

@@ -28,5 +28,5 @@ ENV \
 
 ENV HOSTS=s390x-unknown-linux-gnu
 
-ENV RUST_CONFIGURE_ARGS --enable-extended --enable-lld --enable-profiler --disable-docs
+ENV RUST_CONFIGURE_ARGS --enable-extended --enable-lld --enable-sanitizers --enable-profiler --disable-docs
 ENV SCRIPT python3 ../x.py dist --host $HOSTS --target $HOSTS

Diff for: src/tools/compiletest/src/util.rs

@@ -23,6 +23,7 @@ pub const ASAN_SUPPORTED_TARGETS: &[&str] = &[
     "x86_64-linux-android",
     "x86_64-unknown-freebsd",
     "x86_64-unknown-linux-gnu",
+    "s390x-unknown-linux-gnu",
 ];
 
 // FIXME(rcvalle): More targets are likely supported.
@@ -50,17 +51,23 @@ pub const LSAN_SUPPORTED_TARGETS: &[&str] = &[
     "aarch64-unknown-linux-gnu",
     "x86_64-apple-darwin",
     "x86_64-unknown-linux-gnu",
+    "s390x-unknown-linux-gnu",
 ];
 
-pub const MSAN_SUPPORTED_TARGETS: &[&str] =
-    &["aarch64-unknown-linux-gnu", "x86_64-unknown-freebsd", "x86_64-unknown-linux-gnu"];
+pub const MSAN_SUPPORTED_TARGETS: &[&str] = &[
+    "aarch64-unknown-linux-gnu",
+    "x86_64-unknown-freebsd",
+    "x86_64-unknown-linux-gnu",
+    "s390x-unknown-linux-gnu",
+];
 
 pub const TSAN_SUPPORTED_TARGETS: &[&str] = &[
     "aarch64-apple-darwin",
     "aarch64-unknown-linux-gnu",
     "x86_64-apple-darwin",
     "x86_64-unknown-freebsd",
     "x86_64-unknown-linux-gnu",
+    "s390x-unknown-linux-gnu",
 ];
 
 pub const HWASAN_SUPPORTED_TARGETS: &[&str] =