new file mode 100644
@@ -0,0 +1,51 @@
+From 065d7c263091118437465d714d8a29dbb6296921 Mon Sep 17 00:00:00 2001
+From: Alexander Kanavin <alex@linutronix.de>
+Date: Mon, 13 May 2024 14:57:54 +0200
+Subject: [PATCH] cargo: do not write host information into compilation unit
+ hashes
+
+This breaks reproducibility in cross-builds where the cross-target
+can be the same, but build hosts are different, as seen with
+"rustc --version -v":
+...
+host: x86_64-unknown-linux-gnu
+
+vs.
+
+host: aarch64-unknown-linux-gnu
+
+This can possibly be improved by only hashing host info if the build
+is a native one (e.g. there's no --target option passed to cargo
+invocation) but I'm not sure how.
+
+Upstream-Status: Inappropriate [reported at https://github.com/rust-lang/cargo/issues/13922]
+Signed-off-by: Alexander Kanavin <alex@linutronix.de>
+---
+ .../src/cargo/core/compiler/context/compilation_files.rs | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/tools/cargo/src/cargo/core/compiler/context/compilation_files.rs b/src/tools/cargo/src/cargo/core/compiler/context/compilation_files.rs
+index d83dbf10c..b2ad8d9f3 100644
+--- a/src/tools/cargo/src/cargo/core/compiler/context/compilation_files.rs
++++ b/src/tools/cargo/src/cargo/core/compiler/context/compilation_files.rs
+@@ -652,7 +652,7 @@ fn hash_rustc_version(bcx: &BuildContext<'_, '_>, hasher: &mut StableHasher) {
+ if vers.pre.is_empty() || bcx.config.cli_unstable().separate_nightlies {
+ // For stable, keep the artifacts separate. This helps if someone is
+ // testing multiple versions, to avoid recompiles.
+- bcx.rustc().verbose_version.hash(hasher);
++ //bcx.rustc().verbose_version.hash(hasher);
+ return;
+ }
+ // On "nightly"/"beta"/"dev"/etc, keep each "channel" separate. Don't hash
+@@ -665,7 +665,7 @@ fn hash_rustc_version(bcx: &BuildContext<'_, '_>, hasher: &mut StableHasher) {
+ // Keep "host" since some people switch hosts to implicitly change
+ // targets, (like gnu vs musl or gnu vs msvc). In the future, we may want
+ // to consider hashing `unit.kind.short_name()` instead.
+- bcx.rustc().host.hash(hasher);
++ //bcx.rustc().host.hash(hasher);
+ // None of the other lines are important. Currently they are:
+ // binary: rustc <-- or "rustdoc"
+ // commit-hash: 38114ff16e7856f98b2b4be7ab4cd29b38bed59a
+--
+2.39.2
+
@@ -12,6 +12,7 @@ SRC_URI += "https://static.rust-lang.org/dist/rustc-${RUST_VERSION}-src.tar.xz;n
file://target-build-value.patch;patchdir=${RUSTSRC} \
file://0001-Handle-vendored-sources-when-remapping-paths.patch;patchdir=${RUSTSRC} \
file://repro-issue-fix-with-v175.patch;patchdir=${RUSTSRC} \
+ file://0001-cargo-do-not-write-host-information-into-compilation.patch;patchdir=${RUSTSRC} \
"
SRC_URI[rust.sha256sum] = "4526f786d673e4859ff2afa0bab2ba13c918b796519a25c1acce06dba9542340"