Rustup to rustc 1.51.0-nightly (a4cbb44 2021-01-20)

Author: bjorn3

build_sysroot/Cargo.lock

@@ -11,12 +11,13 @@ test = { path = "./sysroot_src/library/test" }
 
 alloc_system = { path = "./alloc_system" }
 
-compiler_builtins = { version = "=0.1.36", default-features = false }
+compiler_builtins = { version = "0.1.39", default-features = false, features = ["no-asm"] }
 
 [patch.crates-io]
 rustc-std-workspace-core = { path = "./sysroot_src/library/rustc-std-workspace-core" }
 rustc-std-workspace-alloc = { path = "./sysroot_src/library/rustc-std-workspace-alloc" }
 rustc-std-workspace-std = { path = "./sysroot_src/library/rustc-std-workspace-std" }
+compiler_builtins = { path = "./compiler-builtins" }
 
 [profile.dev]
 lto = "off"

build_sysroot/Cargo.toml

@@ -29,4 +29,11 @@ git commit --no-gpg-sign -m "Patch $file"
 done
 popd
 
-echo "Successfully prepared libcore for building"
+git clone https://github.com/rust-lang/compiler-builtins.git || echo "rust-lang/compiler-builtins has already been cloned"
+pushd compiler-builtins
+git checkout -- .
+git checkout 0.1.39
+git apply ../../crate_patches/0001-compiler-builtins-Remove-rotate_left-from-Int.patch
+popd
+
+echo "Successfully prepared sysroot source for building"

build_sysroot/prepare_sysroot_src.sh

@@ -0,0 +1,35 @@
+From 7078cca3cb614e1e82da428380b4e16fc3afef46 Mon Sep 17 00:00:00 2001
+From: bjorn3 <bjorn3@users.noreply.github.com>
+Date: Thu, 21 Jan 2021 14:46:36 +0100
+Subject: [PATCH] Remove rotate_left from Int
+
+---
+ src/int/mod.rs | 5 -----
+ 1 file changed, 5 deletions(-)
+
+diff --git a/src/int/mod.rs b/src/int/mod.rs
+index 06054c8..3bea17b 100644
+--- a/src/int/mod.rs
++++ b/src/int/mod.rs
+@@ -85,7 +85,6 @@ pub trait Int:
+     fn wrapping_sub(self, other: Self) -> Self;
+     fn wrapping_shl(self, other: u32) -> Self;
+     fn wrapping_shr(self, other: u32) -> Self;
+-    fn rotate_left(self, other: u32) -> Self;
+     fn overflowing_add(self, other: Self) -> (Self, bool);
+     fn aborting_div(self, other: Self) -> Self;
+     fn aborting_rem(self, other: Self) -> Self;
+@@ -209,10 +208,6 @@ macro_rules! int_impl_common {
+             <Self>::wrapping_shr(self, other)
+         }
+ 
+-        fn rotate_left(self, other: u32) -> Self {
+-            <Self>::rotate_left(self, other)
+-        }
+-
+         fn overflowing_add(self, other: Self) -> (Self, bool) {
+             <Self>::overflowing_add(self, other)
+         }
+-- 
+2.26.2.7.g19db9cfb68
+

crate_patches/0001-compiler-builtins-Remove-rotate_left-from-Int.patch

@@ -1 +1 @@
-nightly-2021-01-01
+nightly-2021-01-21