# --- T2-COPYRIGHT-BEGIN ---
# t2/package/*/rustc/arch-i3486.patch.prepatch
# Copyright (C) 2020 - 2025 The T2 SDE Project
# SPDX-License-Identifier: GPL-2.0 or patched project license
# --- T2-COPYRIGHT-END ---

Let's add i386 and i486 for embedded, bootloader or other early kernel code.

 - Signed-off-by: René Rebe <rene@exactcode.de>

--- rustc-1.73.0-src/compiler/rustc_target/src/spec/mod.rs.vanilla	2023-10-07 16:10:45.606034645 +0200
+++ rustc-1.73.0-src/compiler/rustc_target/src/spec/mod.rs	2023-10-07 16:11:18.595034753 +0200
@@ -1270,8 +1270,10 @@
 supported_targets! {
     ("x86_64-unknown-linux-gnu", x86_64_unknown_linux_gnu),
     ("x86_64-unknown-linux-gnux32", x86_64_unknown_linux_gnux32),
-    ("i686-unknown-linux-gnu", i686_unknown_linux_gnu),
+    ("i386-unknown-linux-gnu", i386_unknown_linux_gnu),
+    ("i486-unknown-linux-gnu", i486_unknown_linux_gnu),
     ("i586-unknown-linux-gnu", i586_unknown_linux_gnu),
+    ("i686-unknown-linux-gnu", i686_unknown_linux_gnu),
     ("loongarch64-unknown-linux-gnu", loongarch64_unknown_linux_gnu),
     ("m68k-unknown-linux-gnu", m68k_unknown_linux_gnu),
     ("csky-unknown-linux-gnuabiv2", csky_unknown_linux_gnuabiv2),
--- rustc-1.87.0-src/src/tools/build-manifest/src/main.rs.vanilla	2025-05-15 21:08:51.114293119 +0200
+++ rustc-1.87.0-src/src/tools/build-manifest/src/main.rs	2025-05-15 21:09:54.312452190 +0200
@@ -97,6 +97,8 @@
     "bpfeb-unknown-none",
     "bpfel-unknown-none",
     "i386-apple-ios",
+    "i386-unknown-linux-gnu",
+    "i486-unknown-linux-gnu",
     "i586-unknown-linux-gnu",
     "i586-unknown-linux-musl",
     "i586-unknown-redox",
--- /dev/null
+++ a/compiler/rustc_target/src/spec/targets/i386_unknown_linux_gnu.rs
@@ -0,0 +1,9 @@
+use crate::spec::Target;
+
+pub(crate) fn target() -> Target {
+    let mut base = super::i686_unknown_linux_gnu::target();
+    base.rustc_abi = None; // overwrite the SSE2 ABI set by the base target
+    base.cpu = "i386".into();
+    base.llvm_target = "i386-unknown-linux-gnu".into();
+    base
+}
--- /dev/null
+++ a/compiler/rustc_target/src/spec/targets/i486_unknown_linux_gnu.rs
@@ -0,0 +1,9 @@
+use crate::spec::Target;
+
+pub(crate) fn target() -> Target {
+    let mut base = super::i686_unknown_linux_gnu::target();
+    base.rustc_abi = None; // overwrite the SSE2 ABI set by the base target
+    base.cpu = "i486".into();
+    base.llvm_target = "i486-unknown-linux-gnu".into();
+    base
+}