2024-12-20 14:06:38 +08:00
37 changed files with 118 additions and 2322 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "bit_field"
 version = "0.10.1"
@ -14,9 +16,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"

 [[package]]
 name = "byteorder"
-version = "1.4.3"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+checksum = "60f0b0d4c0a382d2734228fd12b5a6b5dac185c60e938026fd31b265b94f9bd2"

 [[package]]
 name = "cc"
@ -32,18 +34,14 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"

 [[package]]
 name = "compiler_builtins"
-version = "0.1.39"
+version = "0.1.49"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3748f82c7d366a0b4950257d19db685d4958d2fa27c6d164a3f069fec42b748b"
+checksum = "20b1438ef42c655665a8ab2c1c6d605a305f031d38d9be689ddfef41a20f3aa2"

 [[package]]
 name = "core_io"
-version = "0.1.20210325"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97f8932064288cc79feb4d343a399d353a6f6f001e586ece47fe518a9e8507df"
-dependencies = [
- "rustc_version",
-]
+version = "0.1.0"
+source = "git+https://git.m-labs.hk/M-Labs/rs-core_io.git?rev=e9d3edf027#e9d3edf0272502b0dd6c26e8a4869c2912657615"

 [[package]]
 name = "embedded-hal"
@ -70,9 +68,8 @@ dependencies = [

 [[package]]
 name = "fatfs"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e18f80a87439240dac45d927fd8f8081b6f1e34c03e97271189fa8a8c2e96c8f"
+version = "0.3.6"
+source = "git+https://git.m-labs.hk/M-Labs/rust-fatfs.git?rev=4b5e420084#4b5e420084fd1c4a9c105680b687523909b6469c"
 dependencies = [
 "bitflags",
 "byteorder",
@ -196,21 +193,6 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bd7a31eed1591dcbc95d92ad7161908e72f4677f8fabf2a32ca49b4237cbf211"

-[[package]]
-name = "rustc_version"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5f5376ea5e30ce23c03eb77cbe4962b988deead10910c372b226388b594c084"
-dependencies = [
- "semver",
-]
-
-[[package]]
-name = "semver"
-version = "0.1.20"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4f410fedcf71af0345d7607d246e7ad15faaadd49d240ee3b24e5dc21a820ac"
-
 [[package]]
 name = "smoltcp"
 version = "0.7.5"
--- a/armv7-none-eabihf.json
+++ b/armv7-none-eabihf.json
@ -1,12 +1,4 @@
 {
-  "abi-blacklist": [
-    "stdcall",
-    "fastcall",
-    "vectorcall",
-    "thiscall",
-    "win64",
-    "sysv64"
-  ],
  "arch": "arm",
  "data-layout": "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64",
  "emit-debug-gdb-scripts": false,
--- a/experiments/src/main.rs
+++ b/experiments/src/main.rs
@ -1,12 +1,14 @@
 #![no_std]
 #![no_main]
-#![feature(const_in_array_repeat_expressions)]
+#![allow(incomplete_features)]
 #![feature(naked_functions)]
 #![feature(asm)]
+#![feature(inline_const)]

 extern crate alloc;

 use alloc::collections::BTreeMap;
+use core::arch::asm;
 use libasync::{
    delay,
    smoltcp::{Sockets, TcpStream},
--- a/flake.lock
+++ b/flake.lock
@ -2,11 +2,11 @@
  "nodes": {
    "nixpkgs": {
      "locked": {
-        "lastModified": 1731652201,
-        "narHash": "sha256-XUO0JKP1hlww0d7mm3kpmIr4hhtR4zicg5Wwes9cPMg=",
+        "lastModified": 1734529975,
+        "narHash": "sha256-ze3IJksru9dN0keqUxY0WNf8xrwfs8Ty/z9v/keyBbg=",
        "owner": "NixOS",
        "repo": "nixpkgs",
-        "rev": "c21b77913ea840f8bcf9adf4c41cecc2abffd38d",
+        "rev": "72d11d40b9878a67c38f003c240c2d2e1811e72a",
        "type": "github"
      },
      "original": {
--- a/flake.nix
+++ b/flake.nix
@ -11,7 +11,7 @@
    let
      pkgs = import nixpkgs { system = "x86_64-linux"; overlays = [ (import rust-overlay) crosspkgs-overlay ]; };
      
-      rust = pkgs.rust-bin.nightly."2021-01-28".default.override {
+      rust = pkgs.rust-bin.nightly."2021-09-01".default.override {
        extensions = [ "rust-src" ];
        targets = [ ];
      };
@ -25,14 +25,6 @@
        cargo = rust;
      };

-      # https://doc.rust-lang.org/rustc/linker-plugin-lto.html#toolchain-compatibility
-      llvmPackages_11 = pkgs.recurseIntoAttrs (pkgs.callPackage (import ./llvm/11) ({
-        inherit (pkgs.stdenvAdapters) overrideCC;
-        buildLlvmTools = null;
-        targetLlvmLibraries = null;
-        targetLlvm = null;
-      }));
-
      crosspkgs-overlay = (self: super: {
        pkgsCross = super.pkgsCross // {
          zynq-baremetal = import super.path {
@ -113,9 +105,15 @@
        src = builtins.filterSource (path: type:
          baseNameOf path != "target"
        ) ./.;
-        cargoLock = { lockFile = ./Cargo.lock; };
+        cargoLock = { 
+          lockFile = ./Cargo.lock;
+          outputHashes = {
+            "core_io-0.1.0" = "sha256-0HINFWRiJx8pjMgUOL/CS336ih7SENSRh3Kah9LPRrw="; 
+            "fatfs-0.3.6" = "sha256-Nz9hCq/1YgSXF8ltJ5ZawV0Hc8WV44KNK0tJdVnNb4U=";
+          };
+        };

-        nativeBuildInputs = [ cargo-xbuild llvmPackages_11.clang-unwrapped ];
+        nativeBuildInputs = [ cargo-xbuild pkgs.llvmPackages_13.clang-unwrapped ];
        buildPhase = ''
          export XARGO_RUST_SRC="${rust}/lib/rustlib/src/rust/library"
          export CARGO_HOME=$(mktemp -d cargo-home.XXX)
@ -160,7 +158,7 @@

      hydraJobs = packages.x86_64-linux;

-      inherit rust rustPlatform llvmPackages_11;
+      inherit rust rustPlatform;

      devShell.x86_64-linux = pkgs.mkShell {
        name = "zynq-rs-dev-shell";
@ -171,7 +169,7 @@

          pkgs.openocd pkgs.gdb
          pkgs.openssh pkgs.rsync
-          llvmPackages_11.clang-unwrapped
+          pkgs.llvmPackages_13.clang-unwrapped
          (pkgs.python3.withPackages(ps: [ ps.pyftdi ]))
        ];
      };
--- a/libconfig/Cargo.toml
+++ b/libconfig/Cargo.toml
@ -6,10 +6,19 @@ edition = "2018"

 [dependencies]
 libboard_zynq = { path = "../libboard_zynq" }
-core_io = { version = "0.1", features = ["collections"] }
-fatfs = { version = "0.3", features = ["core_io"], default-features = false }
 log = "0.4"

+[dependencies.core_io]
+git = "https://git.m-labs.hk/M-Labs/rs-core_io.git"
+rev = "e9d3edf027"
+features = ["collections"]
+
+[dependencies.fatfs]
+git = "https://git.m-labs.hk/M-Labs/rust-fatfs.git"
+rev = "4b5e420084"
+default-features = false
+features = ["core_io"]
+
 [features]
 target_zc706 = []
 target_coraz7 = []
@ -17,4 +26,4 @@ target_ebaz4205 = []
 target_redpitaya = []
 target_kasli_soc = []
 ipv6 = []
-fat_lfn = [ "fatfs/alloc" ]
+fat_lfn = [ "fatfs/alloc" ]
--- a/libcortex_a9/src/asm.rs
+++ b/libcortex_a9/src/asm.rs
@ -1,59 +1,60 @@
+use core::arch::asm;
+
 /// The classic no-op
 #[inline]
 pub fn nop() {
-    unsafe { llvm_asm!("nop" :::: "volatile") }
+    unsafe { asm!("nop") }
 }

 /// Wait For Event
 #[inline]
 pub fn wfe() {
-    unsafe { llvm_asm!("wfe" :::: "volatile") }
+    unsafe { asm!("wfe") }
 }

 /// Send Event
 #[inline]
 pub fn sev() {
-    unsafe { llvm_asm!("sev" :::: "volatile") }
+    unsafe { asm!("sev") }
 }

 /// Data Memory Barrier
 #[inline]
 pub fn dmb() {
-    unsafe { llvm_asm!("dmb" :::: "volatile") }
+    unsafe { asm!("dmb") }
 }

 /// Data Synchronization Barrier
 #[inline]
 pub fn dsb() {
-    unsafe { llvm_asm!("dsb" :::: "volatile") }
+    unsafe { asm!("dsb") }
 }

 /// Instruction Synchronization Barrier
 #[inline]
 pub fn isb() {
-    unsafe { llvm_asm!("isb" :::: "volatile") }
+    unsafe { asm!("isb") }
 }

 /// Enable FIQ
 #[inline]
 pub unsafe fn enable_fiq() {
-    llvm_asm!("cpsie f":::: "volatile");
+    asm!("cpsie f");
 }

 /// Enable IRQ
 #[inline]
 pub unsafe fn enable_irq() {
-    llvm_asm!("cpsie i":::: "volatile");
+    asm!("cpsie i");
 }

 /// Disable IRQ, return if IRQ was originally enabled.
 #[inline]
 pub unsafe fn enter_critical() -> bool {
    let mut cpsr: u32;
-    llvm_asm!(
-        "mrs $0, cpsr
-         cpsid i"
-         : "=r"(cpsr) ::: "volatile");
+    asm!(
+        "mrs {}, cpsr
+         cpsid i", lateout(reg) cpsr);
    (cpsr & (1 << 7)) == 0
 }

@ -65,18 +66,18 @@ pub unsafe fn exit_critical(enable: bool) {
    } else {
        0
    };
-    llvm_asm!(
+    asm!(
        "mrs r1, cpsr
-         bic r1, r1, $0
+         bic r1, r1, {}
         msr cpsr_c, r1"
-         :: "r"(mask) : "r1");
+         , in(reg) mask, out("r1") _);
 }

 /// Exiting IRQ
 #[inline]
 pub unsafe fn exit_irq() {
-    llvm_asm!("
+    asm!("
        mrs r0, SPSR
        msr CPSR, r0
-        " ::: "r0");
+        ", out("r0") _);
 }
--- a/libcortex_a9/src/cache.rs
+++ b/libcortex_a9/src/cache.rs
@ -1,11 +1,12 @@
 use super::asm::{dmb, dsb};
 use super::l2c::*;
+use core::arch::asm;

 /// Invalidate TLBs
 #[inline(always)]
 pub fn tlbiall() {
    unsafe {
-        llvm_asm!("mcr p15, 0, $0, c8, c7, 0" :: "r" (0) :: "volatile");
+        asm!("mcr p15, 0, {}, c8, c7, 0", in(reg) 0);
    }
 }

@ -13,7 +14,7 @@ pub fn tlbiall() {
 #[inline(always)]
 pub fn iciallu() {
    unsafe {
-        llvm_asm!("mcr p15, 0, $0, c7, c5, 0" :: "r" (0) :: "volatile");
+        asm!("mcr p15, 0, {}, c7, c5, 0", in(reg) 0);
    }
 }

@ -21,7 +22,7 @@ pub fn iciallu() {
 #[inline(always)]
 pub fn bpiall() {
    unsafe {
-        llvm_asm!("mcr p15, 0, $0, c7, c5, 6" :: "r" (0) :: "volatile");
+        asm!("mcr p15, 0, {}, c7, c5, 6", in(reg) 0);
    }
 }

@ -29,7 +30,7 @@ pub fn bpiall() {
 #[inline(always)]
 pub fn dccsw(setway: u32) {
    unsafe {
-        llvm_asm!("mcr p15, 0, $0, c7, c10, 2" :: "r" (setway) :: "volatile");
+        asm!("mcr p15, 0, {}, c7, c10, 2", in(reg) setway);
    }
 }

@ -41,7 +42,7 @@ pub fn dcisw(setway: u32) {
        // also see example code (for DCCISW, but DCISW will be
        // analogous) "Example code for cache maintenance operations"
        // on pages B2-1286 and B2-1287.
-        llvm_asm!("mcr p15, 0, $0, c7, c6, 2" :: "r" (setway) :: "volatile");
+        asm!("mcr p15, 0, {}, c7, c6, 2", in(reg) setway);
    }
 }

@ -49,7 +50,7 @@ pub fn dcisw(setway: u32) {
 #[inline(always)]
 pub fn dccisw(setway: u32) {
    unsafe {
-        llvm_asm!("mcr p15, 0, $0, c7, c14, 2" :: "r" (setway) :: "volatile");
+        asm!("mcr p15, 0, {}, c7, c14, 2", in(reg) setway);
    }
 }

@ -69,7 +70,7 @@ pub fn dciall_l1() {

    // select L1 data cache
    unsafe {
-        llvm_asm!("mcr p15, 2, $0, c0, c0, 0" :: "r" (0) :: "volatile");
+        asm!("mcr p15, 2, {}, c0, c0, 0", in(reg) 0);
    }

    // Invalidate entire D-Cache by iterating every set and every way
@ -104,7 +105,7 @@ pub fn dcciall_l1() {

    // select L1 data cache
    unsafe {
-        llvm_asm!("mcr p15, 2, $0, c0, c0, 0" :: "r" (0) :: "volatile");
+        asm!("mcr p15, 2, {}, c0, c0, 0", in(reg) 0);
    }

    // Invalidate entire D-Cache by iterating every set and every way
@ -156,7 +157,7 @@ fn slice_cache_line_addrs<T>(slice: &[T]) -> impl Iterator<Item = usize> {
 #[inline(always)]
 pub fn dccimvac(addr: usize) {
    unsafe {
-        llvm_asm!("mcr p15, 0, $0, c7, c14, 1" :: "r" (addr) :: "volatile");
+        asm!("mcr p15, 0, {}, c7, c14, 1", in(reg) addr);
    }
 }

@ -198,10 +199,9 @@ pub fn dcci_slice<T>(slice: &[T]) {
 #[inline(always)]
 pub fn dccmvac(addr: usize) {
    unsafe {
-        llvm_asm!("mcr p15, 0, $0, c7, c10, 1" :: "r" (addr) :: "volatile");
+        asm!("mcr p15, 0, {}, c7, c10, 1", in(reg) addr);
    }
 }
-
 /// Data cache clean for an object.
 pub fn dcc<T>(object: &T) {
    dmb();
@ -239,7 +239,7 @@ pub fn dcc_slice<T>(slice: &[T]) {
 /// affecting more data than intended.
 #[inline(always)]
 pub unsafe fn dcimvac(addr: usize) {
-    llvm_asm!("mcr p15, 0, $0, c7, c6, 1" :: "r" (addr) :: "volatile");
+    asm!("mcr p15, 0, {}, c7, c6, 1", in(reg) addr);
 }

 /// Data cache clean and invalidate for an object.
--- a/libcortex_a9/src/fpu.rs
+++ b/libcortex_a9/src/fpu.rs
@ -1,7 +1,8 @@
+use core::arch::asm;
 /// Enable FPU in the current core.
 pub fn enable_fpu() {
    unsafe {
-        llvm_asm!("
+        asm!("
            mrc p15, 0, r1, c1, c0, 2
            orr r1, r1, (0b1111<<20)
            mcr p15, 0, r1, c1, c0, 2
@ -9,6 +10,6 @@ pub fn enable_fpu() {
            vmrs r1, fpexc
            orr r1, r1, (1<<30)
            vmsr fpexc, r1
-            ":::"r1");
+            ", out("r1") _);
    }
 }
--- a/libcortex_a9/src/lib.rs
+++ b/libcortex_a9/src/lib.rs
@ -1,7 +1,10 @@
 #![no_std]
-#![feature(llvm_asm, global_asm)]
 #![feature(never_type)]
-#![feature(const_fn)]
+#![feature(global_asm)]
+#![feature(asm)]
+#![allow(incomplete_features)]
+#![feature(inline_const)]
+#![feature(const_fn_trait_bound)]

 extern crate alloc;

@ -17,6 +20,7 @@ pub mod sync_channel;
 mod uncached;
 pub use fpu::enable_fpu;
 pub use uncached::UncachedSlice;
+use core::arch::global_asm;

 global_asm!(include_str!("exceptions.s"));

--- a/libcortex_a9/src/regs.rs
+++ b/libcortex_a9/src/regs.rs
@ -2,6 +2,7 @@ use libregister::{
    register_bit, register_bits,
    RegisterR, RegisterW, RegisterRW,
 };
+use core::arch::asm;

 macro_rules! def_reg_r {
    ($name:tt, $type: ty, $asm_instr:tt) => {
@ -11,7 +12,7 @@ macro_rules! def_reg_r {
            #[inline]
            fn read(&self) -> Self::R {
                let mut value: u32;
-                unsafe { llvm_asm!($asm_instr : "=r" (value) ::: "volatile") }
+                unsafe { asm!($asm_instr, lateout(reg) value) }
                value.into()
            }
        }
@ -26,7 +27,7 @@ macro_rules! def_reg_w {
            #[inline]
            fn write(&mut self, value: Self::W) {
                let value: u32 = value.into();
-                unsafe { llvm_asm!($asm_instr :: "r" (value) :: "volatile") }
+                unsafe { asm!($asm_instr, in(reg) value) }
            }

            #[inline]
@ -71,29 +72,29 @@ macro_rules! wrap_reg {

 /// Stack Pointer
 pub struct SP;
-def_reg_r!(SP, u32, "mov $0, sp");
-def_reg_w!(SP, u32, "mov sp, $0");
+def_reg_r!(SP, u32, "mov {}, sp");
+def_reg_w!(SP, u32, "mov sp, {}");

 /// Link register (function call return address)
 pub struct LR;
-def_reg_r!(LR, u32, "mov $0, lr");
-def_reg_w!(LR, u32, "mov lr, $0");
+def_reg_r!(LR, u32, "mov {}, lr");
+def_reg_w!(LR, u32, "mov lr, {}");

 pub struct VBAR;
-def_reg_r!(VBAR, u32, "mrc p15, 0, $0, c12, c0, 0");
-def_reg_w!(VBAR, u32, "mcr p15, 0, $0, c12, c0, 0");
+def_reg_r!(VBAR, u32, "mrc p15, 0, {}, c12, c0, 0");
+def_reg_w!(VBAR, u32, "mcr p15, 0, {}, c12, c0, 0");

 pub struct MVBAR;
-def_reg_r!(MVBAR, u32, "mrc p15, 0, $0, c12, c0, 1");
-def_reg_w!(MVBAR, u32, "mcr p15, 0, $0, c12, c0, 1");
+def_reg_r!(MVBAR, u32, "mrc p15, 0, {}, c12, c0, 1");
+def_reg_w!(MVBAR, u32, "mcr p15, 0, {}, c12, c0, 1");

 pub struct HVBAR;
-def_reg_r!(HVBAR, u32, "mrc p15, 4, $0, c12, c0, 0");
-def_reg_w!(HVBAR, u32, "mcr p15, 4, $0, c12, c0, 0");
+def_reg_r!(HVBAR, u32, "mrc p15, 4, {}, c12, c0, 0");
+def_reg_w!(HVBAR, u32, "mcr p15, 4, {}, c12, c0, 0");

 /// Multiprocess Affinity Register
 pub struct MPIDR;
-def_reg_r!(MPIDR, mpidr::Read, "mrc p15, 0, $0, c0, c0, 5");
+def_reg_r!(MPIDR, mpidr::Read, "mrc p15, 0, {}, c0, c0, 5");
 wrap_reg!(mpidr);
 register_bits!(mpidr,
               /// CPU core index
@ -106,15 +107,15 @@ register_bit!(mpidr,
              u, 30);

 pub struct DFAR;
-def_reg_r!(DFAR, u32, "mrc p15, 0, $0, c6, c0, 0");
+def_reg_r!(DFAR, u32, "mrc p15, 0, {}, c6, c0, 0");

 pub struct DFSR;
-def_reg_r!(DFSR, u32, "mrc p15, 0, $0, c5, c0, 0");
+def_reg_r!(DFSR, u32, "mrc p15, 0, {}, c5, c0, 0");

 pub struct SCTLR;
 wrap_reg!(sctlr);
-def_reg_r!(SCTLR, sctlr::Read, "mrc p15, 0, $0, c1, c0, 0");
-def_reg_w!(SCTLR, sctlr::Write, "mcr p15, 0, $0, c1, c0, 0");
+def_reg_r!(SCTLR, sctlr::Read, "mrc p15, 0, {}, c1, c0, 0");
+def_reg_w!(SCTLR, sctlr::Write, "mcr p15, 0, {}, c1, c0, 0");
 register_bit!(sctlr,
              /// Enables MMU
              m, 0);
@ -147,8 +148,8 @@ register_bit!(sctlr,
 /// Auxiliary Control Register
 pub struct ACTLR;
 wrap_reg!(actlr);
-def_reg_r!(ACTLR, actlr::Read, "mrc p15, 0, $0, c1, c0, 1");
-def_reg_w!(ACTLR, actlr::Write, "mcr p15, 0, $0, c1, c0, 1");
+def_reg_r!(ACTLR, actlr::Read, "mrc p15, 0, {}, c1, c0, 1");
+def_reg_w!(ACTLR, actlr::Write, "mcr p15, 0, {}, c1, c0, 1");
 // SMP bit
 register_bit!(actlr, parity_on, 9);
 register_bit!(actlr, alloc_one_way, 8);
@ -183,17 +184,17 @@ impl ACTLR {

 /// Domain Access Control Register
 pub struct DACR;
-def_reg_r!(DACR, u32, "mrc p15, 0, $0, c3, c0, 0");
-def_reg_w!(DACR, u32, "mcr p15, 0, $0, c3, c0, 0");
+def_reg_r!(DACR, u32, "mrc p15, 0, {}, c3, c0, 0");
+def_reg_w!(DACR, u32, "mcr p15, 0, {}, c3, c0, 0");

 /// Translation Table Base Register 0
 pub struct TTBR0;
 /// Translation Table Base Register 1
 pub struct TTBR1;
-def_reg_r!(TTBR0, ttbr::Read, "mrc p15, 0, $0, c2, c0, 0");
-def_reg_w!(TTBR0, ttbr::Write, "mcr p15, 0, $0, c2, c0, 0");
-def_reg_r!(TTBR1, ttbr::Read, "mrc p15, 0, $0, c2, c0, 1");
-def_reg_w!(TTBR1, ttbr::Write, "mcr p15, 0, $0, c2, c0, 1");
+def_reg_r!(TTBR0, ttbr::Read, "mrc p15, 0, {}, c2, c0, 0");
+def_reg_w!(TTBR0, ttbr::Write, "mcr p15, 0, {}, c2, c0, 0");
+def_reg_r!(TTBR1, ttbr::Read, "mrc p15, 0, {}, c2, c0, 1");
+def_reg_w!(TTBR1, ttbr::Write, "mcr p15, 0, {}, c2, c0, 1");
 wrap_reg!(ttbr);
 register_bits!(ttbr, table_base, u32, 14, 31);
 register_bit!(ttbr, irgn0, 6);
--- a/libcortex_a9/src/sync_channel.rs
+++ b/libcortex_a9/src/sync_channel.rs
@ -172,13 +172,15 @@ impl<'a, T> Iterator for Receiver<'a, T> where T: Clone {

 #[macro_export]
 /// Macro for initializing the sync_channel with static buffer and indexes.
-/// Note that this requires `#![feature(const_in_array_repeat_expressions)]`
 macro_rules! sync_channel {
    ($t: ty, $cap: expr) => {
        {
            use core::sync::atomic::{AtomicUsize, AtomicPtr};
            use $crate::sync_channel::{Sender, Receiver};
-            static LIST: [AtomicPtr<$t>; $cap + 1] = [AtomicPtr::new(core::ptr::null_mut()); $cap + 1];
+            const fn new_atomic() -> AtomicPtr<$t> {
+                AtomicPtr::new(core::ptr::null_mut())
+            }
+            static LIST: [AtomicPtr<$t>; $cap + 1] = [const { new_atomic() }; $cap + 1];
            static WRITE: AtomicUsize = AtomicUsize::new(0);
            static READ: AtomicUsize = AtomicUsize::new(0);
            (Sender::new(&LIST, &WRITE, &READ), Receiver::new(&LIST, &WRITE, &READ))
--- a/libsupport_zynq/Cargo.toml
+++ b/libsupport_zynq/Cargo.toml
@ -20,7 +20,7 @@ default = ["panic_handler", "dummy_irq_handler", "dummy_fiq_handler"]

 [dependencies]
 r0 = "1"
-compiler_builtins = "=0.1.39"
+compiler_builtins = "=0.1.49"
 linked_list_allocator = { version = "0.8", default-features = false, features = ["const_mut_refs"] }
 libregister = { path = "../libregister" }
 libcortex_a9 = { path = "../libcortex_a9" }
--- a/libsupport_zynq/src/boot.rs
+++ b/libsupport_zynq/src/boot.rs
@ -1,5 +1,6 @@
 use r0::zero_bss;
 use core::ptr::write_volatile;
+use core::arch::asm;
 use libregister::{
    VolatileCell,
    RegisterR, RegisterRW,
--- a/libsupport_zynq/src/exception_vectors.rs
+++ b/libsupport_zynq/src/exception_vectors.rs
@ -1,6 +1,7 @@
 use libregister::{RegisterR, RegisterW};
 use libcortex_a9::{regs::{DFSR, MPIDR, VBAR}, interrupt_handler};
 use libboard_zynq::{println, stdio}; 
+use core::arch::asm;

 pub fn set_vector_table(base_addr: u32){
    VBAR.write(base_addr);
--- a/libsupport_zynq/src/lib.rs
+++ b/libsupport_zynq/src/lib.rs
@ -3,6 +3,7 @@
 #![feature(alloc_error_handler)]
 #![feature(panic_info_message)]
 #![feature(naked_functions)]
+#![feature(global_asm)]
 #![feature(asm)]

 pub extern crate alloc;
--- a/llvm/11/clang/default.nix
+++ b/llvm/11/clang/default.nix
@ -1,138 +0,0 @@
-{ lib, stdenv, llvm_meta, fetch, fetchpatch, substituteAll, cmake, libxml2, libllvm, version, clang-tools-extra_src, python3
-, buildLlvmTools
-, fixDarwinDylibNames
-, enableManpages ? false
-, enablePolly ? false
-}:
-
-let
-  self = stdenv.mkDerivation ({
-    pname = "clang";
-    inherit version;
-
-    src = fetch "clang" "12sm91qx2m79cvj75a9aazf2x8xybjbd593dv6v7rxficpq8i0ha";
-    inherit clang-tools-extra_src;
-
-    unpackPhase = ''
-      unpackFile $src
-      mv clang-* clang
-      sourceRoot=$PWD/clang
-      unpackFile ${clang-tools-extra_src}
-      mv clang-tools-extra-* $sourceRoot/tools/extra
-    '';
-
-    nativeBuildInputs = [ cmake python3 ]
-      ++ lib.optional enableManpages python3.pkgs.sphinx
-      ++ lib.optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames;
-
-    buildInputs = [ libxml2 libllvm ];
-
-    cmakeFlags = [
-      "-DCLANGD_BUILD_XPC=OFF"
-      "-DLLVM_ENABLE_RTTI=ON"
-    ] ++ lib.optionals enableManpages [
-      "-DCLANG_INCLUDE_DOCS=ON"
-      "-DLLVM_ENABLE_SPHINX=ON"
-      "-DSPHINX_OUTPUT_MAN=ON"
-      "-DSPHINX_OUTPUT_HTML=OFF"
-      "-DSPHINX_WARNINGS_AS_ERRORS=OFF"
-    ] ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
-      "-DLLVM_TABLEGEN_EXE=${buildLlvmTools.llvm}/bin/llvm-tblgen"
-      "-DCLANG_TABLEGEN=${buildLlvmTools.libclang.dev}/bin/clang-tblgen"
-    ] ++ lib.optionals enablePolly [
-      "-DWITH_POLLY=ON"
-      "-DLINK_POLLY_INTO_TOOLS=ON"
-    ];
-
-
-    patches = [
-      ./purity.patch
-      # https://reviews.llvm.org/D51899
-      ./gnu-install-dirs.patch
-      (substituteAll {
-        src = ../../clang-11-12-LLVMgold-path.patch;
-        libllvmLibdir = "${libllvm.lib}/lib";
-      })
-    ];
-
-    postPatch = ''
-      sed -i -e 's/DriverArgs.hasArg(options::OPT_nostdlibinc)/true/' \
-             -e 's/Args.hasArg(options::OPT_nostdlibinc)/true/' \
-             lib/Driver/ToolChains/*.cpp
-    '' + lib.optionalString stdenv.hostPlatform.isMusl ''
-      sed -i -e 's/lgcc_s/lgcc_eh/' lib/Driver/ToolChains/*.cpp
-    '' + lib.optionalString stdenv.hostPlatform.isDarwin ''
-      substituteInPlace tools/extra/clangd/CMakeLists.txt \
-        --replace "NOT HAVE_CXX_ATOMICS64_WITHOUT_LIB" FALSE
-    '';
-
-    outputs = [ "out" "lib" "dev" "python" ];
-
-    postInstall = ''
-      ln -sv $out/bin/clang $out/bin/cpp
-
-      # Move libclang to 'lib' output
-      moveToOutput "lib/libclang.*" "$lib"
-      moveToOutput "lib/libclang-cpp.*" "$lib"
-      substituteInPlace $out/lib/cmake/clang/ClangTargets-release.cmake \
-          --replace "\''${_IMPORT_PREFIX}/lib/libclang." "$lib/lib/libclang." \
-          --replace "\''${_IMPORT_PREFIX}/lib/libclang-cpp." "$lib/lib/libclang-cpp."
-
-      mkdir -p $python/bin $python/share/{clang,scan-view}
-      mv $out/bin/{git-clang-format,scan-view} $python/bin
-      if [ -e $out/bin/set-xcode-analyzer ]; then
-        mv $out/bin/set-xcode-analyzer $python/bin
-      fi
-      mv $out/share/clang/*.py $python/share/clang
-      mv $out/share/scan-view/*.py $python/share/scan-view
-      rm $out/bin/c-index-test
-      patchShebangs $python/bin
-
-      mkdir -p $dev/bin
-      cp bin/clang-tblgen $dev/bin
-    '';
-
-    passthru = {
-      inherit libllvm;
-      isClang = true;
-      hardeningUnsupportedFlags = [ "fortify3" ];
-    };
-
-    meta = llvm_meta // {
-      homepage = "https://clang.llvm.org/";
-      description = "A C language family frontend for LLVM";
-      longDescription = ''
-        The Clang project provides a language front-end and tooling
-        infrastructure for languages in the C language family (C, C++, Objective
-        C/C++, OpenCL, CUDA, and RenderScript) for the LLVM project.
-        It aims to deliver amazingly fast compiles, extremely useful error and
-        warning messages and to provide a platform for building great source
-        level tools. The Clang Static Analyzer and clang-tidy are tools that
-        automatically find bugs in your code, and are great examples of the sort
-        of tools that can be built using the Clang frontend as a library to
-        parse C/C++ code.
-      '';
-      mainProgram = "clang";
-    };
-  } // lib.optionalAttrs enableManpages {
-    pname = "clang-manpages";
-
-    buildPhase = ''
-      make docs-clang-man
-    '';
-
-    installPhase = ''
-      mkdir -p $out/share/man/man1
-      # Manually install clang manpage
-      cp docs/man/*.1 $out/share/man/man1/
-    '';
-
-    outputs = [ "out" ];
-
-    doCheck = false;
-
-    meta = llvm_meta // {
-      description = "man page for Clang ${version}";
-    };
-  });
-in self
--- a/llvm/11/clang/gnu-install-dirs.patch
+++ b/llvm/11/clang/gnu-install-dirs.patch
@ -1,235 +0,0 @@
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index bb4b801f01c8..77a8b43b22c8 100644
--- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -9,6 +9,8 @@ endif()
- if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
-   project(Clang)
- 
-+  include(GNUInstallDirs)
-+
-   set(CMAKE_CXX_STANDARD 14 CACHE STRING "C++ standard to conform to")
-   set(CMAKE_CXX_STANDARD_REQUIRED YES)
-   set(CMAKE_CXX_EXTENSIONS NO)
-@@ -447,7 +449,7 @@ include_directories(BEFORE
- 
- if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
-   install(DIRECTORY include/clang include/clang-c
-    DESTINATION include
-+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-     COMPONENT clang-headers
-     FILES_MATCHING
-     PATTERN "*.def"
-@@ -457,7 +459,7 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
-     )
- 
-   install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/clang
-    DESTINATION include
-+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-     COMPONENT clang-headers
-     FILES_MATCHING
-     PATTERN "CMakeFiles" EXCLUDE
-@@ -477,7 +479,7 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
- 
-   add_custom_target(bash-autocomplete DEPENDS utils/bash-autocomplete.sh)
-   install(PROGRAMS utils/bash-autocomplete.sh
-          DESTINATION share/clang
-+          DESTINATION ${CMAKE_INSTALL_DATADIR}/clang
-           COMPONENT bash-autocomplete)
-   if(NOT LLVM_ENABLE_IDE)
-     add_llvm_install_targets(install-bash-autocomplete
-diff --git a/cmake/modules/AddClang.cmake b/cmake/modules/AddClang.cmake
-index 704278a0e93b..d25c8d325c71 100644
--- a/cmake/modules/AddClang.cmake
-+++ b/cmake/modules/AddClang.cmake
-@@ -123,9 +123,9 @@ macro(add_clang_library name)
-         install(TARGETS ${lib}
-           COMPONENT ${lib}
-           ${export_to_clangtargets}
-          LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
-          ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX}
-          RUNTIME DESTINATION bin)
-+          LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}
-+          ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}
-+          RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
- 
-         if (NOT LLVM_ENABLE_IDE)
-           add_llvm_install_targets(install-${lib}
-@@ -170,7 +170,7 @@ macro(add_clang_tool name)
- 
-     install(TARGETS ${name}
-       ${export_to_clangtargets}
-      RUNTIME DESTINATION bin
-+      RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-       COMPONENT ${name})
- 
-     if(NOT LLVM_ENABLE_IDE)
-@@ -185,7 +185,7 @@ endmacro()
- macro(add_clang_symlink name dest)
-   add_llvm_tool_symlink(${name} ${dest} ALWAYS_GENERATE)
-   # Always generate install targets
-  llvm_install_symlink(${name} ${dest} ALWAYS_GENERATE)
-+  llvm_install_symlink(${name} ${dest} ${CMAKE_INSTALL_FULL_BINDIR} ALWAYS_GENERATE)
- endmacro()
- 
- function(clang_target_link_libraries target type)
-diff --git a/lib/Headers/CMakeLists.txt b/lib/Headers/CMakeLists.txt
-index 0692fe75a441..6f201e7207d0 100644
--- a/lib/Headers/CMakeLists.txt
-+++ b/lib/Headers/CMakeLists.txt
-@@ -208,7 +208,7 @@ set_target_properties(clang-resource-headers PROPERTIES
-   FOLDER "Misc"
-   RUNTIME_OUTPUT_DIRECTORY "${output_dir}")
- 
-set(header_install_dir lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}/include)
-+set(header_install_dir ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION}/include)
- 
- install(
-   FILES ${files} ${generated_files}
-diff --git a/tools/c-index-test/CMakeLists.txt b/tools/c-index-test/CMakeLists.txt
-index ceef4b08637c..8efad5520ca4 100644
--- a/tools/c-index-test/CMakeLists.txt
-+++ b/tools/c-index-test/CMakeLists.txt
-@@ -54,7 +54,7 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
-     set_property(TARGET c-index-test APPEND PROPERTY INSTALL_RPATH
-        "@executable_path/../../lib")
-   else()
-    set(INSTALL_DESTINATION bin)
-+    set(INSTALL_DESTINATION ${CMAKE_INSTALL_BINDIR})
-   endif()
- 
-   install(TARGETS c-index-test
-diff --git a/tools/clang-format/CMakeLists.txt b/tools/clang-format/CMakeLists.txt
-index 35ecdb11253c..d77d75de0094 100644
--- a/tools/clang-format/CMakeLists.txt
-+++ b/tools/clang-format/CMakeLists.txt
-@@ -21,20 +21,20 @@ if( LLVM_LIB_FUZZING_ENGINE OR LLVM_USE_SANITIZE_COVERAGE )
- endif()
- 
- install(PROGRAMS clang-format-bbedit.applescript
-  DESTINATION share/clang
-+  DESTINATION ${CMAKE_INSTALL_DATADIR}/clang
-   COMPONENT clang-format)
- install(PROGRAMS clang-format-diff.py
-  DESTINATION share/clang
-+  DESTINATION ${CMAKE_INSTALL_DATADIR}/clang
-   COMPONENT clang-format)
- install(PROGRAMS clang-format-sublime.py
-  DESTINATION share/clang
-+  DESTINATION ${CMAKE_INSTALL_DATADIR}/clang
-   COMPONENT clang-format)
- install(PROGRAMS clang-format.el
-  DESTINATION share/clang
-+  DESTINATION ${CMAKE_INSTALL_DATADIR}/clang
-   COMPONENT clang-format)
- install(PROGRAMS clang-format.py
-  DESTINATION share/clang
-+  DESTINATION ${CMAKE_INSTALL_DATADIR}/clang
-   COMPONENT clang-format)
- install(PROGRAMS git-clang-format
-  DESTINATION bin
-+  DESTINATION ${CMAKE_INSTALL_BINDIR}
-   COMPONENT clang-format)
-diff --git a/tools/clang-rename/CMakeLists.txt b/tools/clang-rename/CMakeLists.txt
-index cda8e29ec5b1..0134d8ccd70b 100644
--- a/tools/clang-rename/CMakeLists.txt
-+++ b/tools/clang-rename/CMakeLists.txt
-@@ -19,8 +19,8 @@ clang_target_link_libraries(clang-rename
-   )
- 
- install(PROGRAMS clang-rename.py
-  DESTINATION share/clang
-+  DESTINATION ${CMAKE_INSTALL_DATADIR}/clang
-   COMPONENT clang-rename)
- install(PROGRAMS clang-rename.el
-  DESTINATION share/clang
-+  DESTINATION ${CMAKE_INSTALL_DATADIR}/clang
-   COMPONENT clang-rename)
-diff --git a/tools/libclang/CMakeLists.txt b/tools/libclang/CMakeLists.txt
-index 5cd9ac5cddc1..a197676fedbd 100644
--- a/tools/libclang/CMakeLists.txt
-+++ b/tools/libclang/CMakeLists.txt
-@@ -165,7 +165,7 @@ endif()
- if(INTERNAL_INSTALL_PREFIX)
-   set(LIBCLANG_HEADERS_INSTALL_DESTINATION "${INTERNAL_INSTALL_PREFIX}/include")
- else()
-  set(LIBCLANG_HEADERS_INSTALL_DESTINATION include)
-+  set(LIBCLANG_HEADERS_INSTALL_DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
- endif()
- 
- install(DIRECTORY ../../include/clang-c
-@@ -196,7 +196,7 @@ foreach(PythonVersion ${CLANG_PYTHON_BINDINGS_VERSIONS})
-           COMPONENT
-             libclang-python-bindings
-           DESTINATION
-            "lib${LLVM_LIBDIR_SUFFIX}/python${PythonVersion}/site-packages")
-+            "${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/python${PythonVersion}/site-packages")
- endforeach()
- if(NOT LLVM_ENABLE_IDE)
-   add_custom_target(libclang-python-bindings)
-diff --git a/tools/scan-build/CMakeLists.txt b/tools/scan-build/CMakeLists.txt
-index ec0702d76f18..d25d982f51da 100644
--- a/tools/scan-build/CMakeLists.txt
-+++ b/tools/scan-build/CMakeLists.txt
-@@ -47,7 +47,7 @@ if(CLANG_INSTALL_SCANBUILD)
-                        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/bin/${BinFile})
-     list(APPEND Depends ${CMAKE_BINARY_DIR}/bin/${BinFile})
-     install(PROGRAMS bin/${BinFile}
-            DESTINATION bin
-+            DESTINATION ${CMAKE_INSTALL_BINDIR}
-             COMPONENT scan-build)
-   endforeach()
- 
-@@ -61,7 +61,7 @@ if(CLANG_INSTALL_SCANBUILD)
-                        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/libexec/${LibexecFile})
-     list(APPEND Depends ${CMAKE_BINARY_DIR}/libexec/${LibexecFile})
-     install(PROGRAMS libexec/${LibexecFile}
-            DESTINATION libexec
-+            DESTINATION ${CMAKE_INSTALL_LIBEXECDIR}
-             COMPONENT scan-build)
-   endforeach()
- 
-@@ -89,7 +89,7 @@ if(CLANG_INSTALL_SCANBUILD)
-                        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/share/scan-build/${ShareFile})
-     list(APPEND Depends ${CMAKE_BINARY_DIR}/share/scan-build/${ShareFile})
-     install(FILES share/scan-build/${ShareFile}
-            DESTINATION share/scan-build
-+            DESTINATION ${CMAKE_INSTALL_DATADIR}/scan-build
-             COMPONENT scan-build)
-   endforeach()
- 
-diff --git a/tools/scan-view/CMakeLists.txt b/tools/scan-view/CMakeLists.txt
-index 22edb974bac7..9f140a9a4538 100644
--- a/tools/scan-view/CMakeLists.txt
-+++ b/tools/scan-view/CMakeLists.txt
-@@ -22,7 +22,7 @@ if(CLANG_INSTALL_SCANVIEW)
-                        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/bin/${BinFile})
-     list(APPEND Depends ${CMAKE_BINARY_DIR}/bin/${BinFile})
-     install(PROGRAMS bin/${BinFile}
-            DESTINATION bin
-+            DESTINATION ${CMAKE_INSTALL_BINDIR}
-             COMPONENT scan-view)
-   endforeach()
- 
-@@ -36,7 +36,7 @@ if(CLANG_INSTALL_SCANVIEW)
-                        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/share/${ShareFile})
-     list(APPEND Depends ${CMAKE_BINARY_DIR}/share/scan-view/${ShareFile})
-     install(FILES share/${ShareFile}
-            DESTINATION share/scan-view
-+            DESTINATION ${CMAKE_INSTALL_DATADIR}/scan-view
-             COMPONENT scan-view)
-   endforeach()
- 
-diff --git a/utils/hmaptool/CMakeLists.txt b/utils/hmaptool/CMakeLists.txt
-index 62f2de0cb15c..6aa66825b6ec 100644
--- a/utils/hmaptool/CMakeLists.txt
-+++ b/utils/hmaptool/CMakeLists.txt
-@@ -10,7 +10,7 @@ add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin/${CLANG_HM
- 
- list(APPEND Depends ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin/${CLANG_HMAPTOOL})
- install(PROGRAMS ${CLANG_HMAPTOOL}
-        DESTINATION bin
-+        DESTINATION ${CMAKE_INSTALL_BINDIR}
-         COMPONENT hmaptool)
- 
- add_custom_target(hmaptool ALL DEPENDS ${Depends})
--- a/llvm/11/clang/purity.patch
+++ b/llvm/11/clang/purity.patch
@ -1,28 +0,0 @@
-From 4add81bba40dcec62c4ea4481be8e35ac53e89d8 Mon Sep 17 00:00:00 2001
-From: Will Dietz <w@wdtz.org>
-Date: Thu, 18 May 2017 11:56:12 -0500
-Subject: [PATCH] "purity" patch for 5.0
-
---
- lib/Driver/ToolChains/Gnu.cpp | 7 -------
- 1 file changed, 7 deletions(-)
-
-diff --git a/lib/Driver/ToolChains/Gnu.cpp b/lib/Driver/ToolChains/Gnu.cpp
-index fe3c0191bb..c6a482bece 100644
--- a/lib/Driver/ToolChains/Gnu.cpp
-+++ b/lib/Driver/ToolChains/Gnu.cpp
-@@ -487,12 +487,6 @@ void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
-   if (!IsStatic) {
-     if (Args.hasArg(options::OPT_rdynamic))
-       CmdArgs.push_back("-export-dynamic");
-
-    if (!Args.hasArg(options::OPT_shared) && !IsStaticPIE) {
-      CmdArgs.push_back("-dynamic-linker");
-      CmdArgs.push_back(Args.MakeArgString(Twine(D.DyldPrefix) +
-                                           ToolChain.getDynamicLinker(Args)));
-    }
-   }
- 
-   CmdArgs.push_back("-o");
-- 
-2.11.0
--- a/llvm/11/default.nix
+++ b/llvm/11/default.nix
@ -1,296 +0,0 @@
-{ lowPrio, newScope, pkgs, lib, stdenv, cmake
-, gccForLibs, preLibcCrossHeaders
-, libxml2, python3, isl, fetchurl, overrideCC, wrapCCWith, wrapBintoolsWith
-, buildLlvmTools # tools, but from the previous stage, for cross
-, targetLlvmLibraries # libraries, but from the next stage, for cross
-, targetLlvm
-# This is the default binutils, but with *this* version of LLD rather
-# than the default LLVM version's, if LLD is the choice. We use these for
-# the `useLLVM` bootstrapping below.
-, bootBintoolsNoLibc ?
-    if stdenv.targetPlatform.linker == "lld"
-    then null
-    else pkgs.bintoolsNoLibc
-, bootBintools ?
-    if stdenv.targetPlatform.linker == "lld"
-    then null
-    else pkgs.bintools
-}:
-
-let
-  release_version = "11.1.0";
-  candidate = ""; # empty or "rcN"
-  dash-candidate = lib.optionalString (candidate != "") "-${candidate}";
-  version = "${release_version}${dash-candidate}"; # differentiating these (variables) is important for RCs
-  targetConfig = stdenv.targetPlatform.config;
-
-  fetch = name: sha256: fetchurl {
-    url = "https://github.com/llvm/llvm-project/releases/download/llvmorg-${version}/${name}-${release_version}${candidate}.src.tar.xz";
-    inherit sha256;
-  };
-
-  clang-tools-extra_src = fetch "clang-tools-extra" "18n1w1hkv931xzq02b34wglbv6zd6sd0r5kb8piwvag7klj7qw3n";
-
-  llvm_meta = {
-    license     = lib.licenses.ncsa;
-
-    # See llvm/cmake/config-ix.cmake.
-    platforms   =
-      lib.platforms.aarch64 ++
-      lib.platforms.arm ++
-      lib.platforms.mips ++
-      lib.platforms.riscv ++
-      lib.platforms.wasi ++
-      lib.platforms.x86;
-  };
-
-  tools = lib.makeExtensible (tools: let
-    callPackage = newScope (tools // { inherit stdenv cmake libxml2 python3 isl release_version version fetch buildLlvmTools; });
-    mkExtraBuildCommands0 = cc: ''
-      rsrc="$out/resource-root"
-      mkdir "$rsrc"
-      ln -s "${cc.lib}/lib/clang/${release_version}/include" "$rsrc"
-      echo "-resource-dir=$rsrc" >> $out/nix-support/cc-cflags
-    '';
-    mkExtraBuildCommands = cc: mkExtraBuildCommands0 cc + ''
-      ln -s "${targetLlvmLibraries.compiler-rt.out}/lib" "$rsrc/lib"
-      ln -s "${targetLlvmLibraries.compiler-rt.out}/share" "$rsrc/share"
-    '';
-
-  bintoolsNoLibc' =
-    if bootBintoolsNoLibc == null
-    then tools.bintoolsNoLibc
-    else bootBintoolsNoLibc;
-  bintools' =
-    if bootBintools == null
-    then tools.bintools
-    else bootBintools;
-
-  in {
-
-    libllvm = callPackage ./llvm {
-      inherit llvm_meta;
-    };
-
-    # `llvm` historically had the binaries.  When choosing an output explicitly,
-    # we need to reintroduce `outputSpecified` to get the expected behavior e.g. of lib.get*
-    llvm = tools.libllvm;
-
-    libllvm-polly = callPackage ./llvm {
-      inherit llvm_meta;
-      enablePolly = true;
-    };
-
-    llvm-polly = tools.libllvm-polly.lib // { outputSpecified = false; };
-
-    libclang = callPackage ./clang {
-      inherit clang-tools-extra_src llvm_meta;
-    };
-
-    clang-unwrapped = tools.libclang;
-
-    clang-polly-unwrapped = callPackage ./clang {
-      inherit llvm_meta;
-      inherit clang-tools-extra_src;
-      libllvm = tools.libllvm-polly;
-      enablePolly = true;
-    };
-
-    llvm-manpages = lowPrio (tools.libllvm.override {
-      enableManpages = true;
-      python3 = pkgs.python3;  # don't use python-boot
-    });
-
-    clang-manpages = lowPrio (tools.libclang.override {
-      enableManpages = true;
-      python3 = pkgs.python3;  # don't use python-boot
-    });
-
-    # disabled until recommonmark supports sphinx 3
-    # lldb-manpages = lowPrio (tools.lldb.override {
-    #   enableManpages = true;
-    #   python3 = pkgs.python3;  # don't use python-boot
-    # });
-
-    # pick clang appropriate for package set we are targeting
-    clang =
-      /**/ if stdenv.targetPlatform.libc == null then tools.clangNoLibc
-      else if stdenv.targetPlatform.useLLVM or false then tools.clangUseLLVM
-      else if (pkgs.targetPackages.stdenv or stdenv).cc.isGNU then tools.libstdcxxClang
-      else tools.libcxxClang;
-
-    libstdcxxClang = wrapCCWith rec {
-      cc = tools.clang-unwrapped;
-      # libstdcxx is taken from gcc in an ad-hoc way in cc-wrapper.
-      libcxx = null;
-      extraPackages = [
-        targetLlvmLibraries.compiler-rt
-      ];
-      extraBuildCommands = mkExtraBuildCommands cc;
-    };
-
-    libcxxClang = wrapCCWith rec {
-      cc = tools.clang-unwrapped;
-      libcxx = targetLlvmLibraries.libcxx;
-      extraPackages = [
-        libcxx.cxxabi
-        targetLlvmLibraries.compiler-rt
-      ];
-      extraBuildCommands = mkExtraBuildCommands cc;
-    };
-
-    lld = callPackage ./lld {
-      inherit llvm_meta;
-    };
-
-    lldb = callPackage ../common/lldb.nix {
-      src = fetch "lldb" "1vlyg015dyng43xqb8cg2l6r9ix8klibxsajazbfnckdnh54hwxj";
-      patches = [
-        ./lldb/procfs.patch
-        ./lldb/gnu-install-dirs.patch
-      ];
-      inherit llvm_meta;
-    };
-
-    # Below, is the LLVM bootstrapping logic. It handles building a
-    # fully LLVM toolchain from scratch. No GCC toolchain should be
-    # pulled in. As a consequence, it is very quick to build different
-    # targets provided by LLVM and we can also build for what GCC
-    # doesn’t support like LLVM. Probably we should move to some other
-    # file.
-
-    bintools-unwrapped = callPackage ../common/bintools.nix { };
-
-    bintoolsNoLibc = wrapBintoolsWith {
-      bintools = tools.bintools-unwrapped;
-      libc = preLibcCrossHeaders;
-    };
-
-    bintools = wrapBintoolsWith {
-      bintools = tools.bintools-unwrapped;
-    };
-
-    clangUseLLVM = wrapCCWith rec {
-      cc = tools.clang-unwrapped;
-      libcxx = targetLlvmLibraries.libcxx;
-      bintools = bintools';
-      extraPackages = [
-        libcxx.cxxabi
-        targetLlvmLibraries.compiler-rt
-      ] ++ lib.optionals (!stdenv.targetPlatform.isWasm) [
-        targetLlvmLibraries.libunwind
-      ];
-      extraBuildCommands = ''
-        echo "-rtlib=compiler-rt -Wno-unused-command-line-argument" >> $out/nix-support/cc-cflags
-        echo "-B${targetLlvmLibraries.compiler-rt}/lib" >> $out/nix-support/cc-cflags
-      '' + lib.optionalString (!stdenv.targetPlatform.isWasm) ''
-        echo "--unwindlib=libunwind" >> $out/nix-support/cc-cflags
-      '' + lib.optionalString (!stdenv.targetPlatform.isWasm && stdenv.targetPlatform.useLLVM or false) ''
-        echo "-lunwind" >> $out/nix-support/cc-ldflags
-      '' + lib.optionalString stdenv.targetPlatform.isWasm ''
-        echo "-fno-exceptions" >> $out/nix-support/cc-cflags
-      '' + mkExtraBuildCommands cc;
-    };
-
-    clangNoLibcxx = wrapCCWith rec {
-      cc = tools.clang-unwrapped;
-      libcxx = null;
-      bintools = bintools';
-      extraPackages = [
-        targetLlvmLibraries.compiler-rt
-      ];
-      extraBuildCommands = ''
-        echo "-rtlib=compiler-rt" >> $out/nix-support/cc-cflags
-        echo "-B${targetLlvmLibraries.compiler-rt}/lib" >> $out/nix-support/cc-cflags
-        echo "-nostdlib++" >> $out/nix-support/cc-cflags
-      '' + mkExtraBuildCommands cc;
-    };
-
-    clangNoLibc = wrapCCWith rec {
-      cc = tools.clang-unwrapped;
-      libcxx = null;
-      bintools = bintoolsNoLibc';
-      extraPackages = [
-        targetLlvmLibraries.compiler-rt
-      ];
-      extraBuildCommands = ''
-        echo "-rtlib=compiler-rt" >> $out/nix-support/cc-cflags
-        echo "-B${targetLlvmLibraries.compiler-rt}/lib" >> $out/nix-support/cc-cflags
-      '' + mkExtraBuildCommands cc;
-    };
-
-    clangNoCompilerRt = wrapCCWith rec {
-      cc = tools.clang-unwrapped;
-      libcxx = null;
-      bintools = bintoolsNoLibc';
-      extraPackages = [ ];
-      extraBuildCommands = ''
-        echo "-nostartfiles" >> $out/nix-support/cc-cflags
-      '' + mkExtraBuildCommands0 cc;
-    };
-
-    clangNoCompilerRtWithLibc = wrapCCWith rec {
-      cc = tools.clang-unwrapped;
-      libcxx = null;
-      bintools = bintools';
-      extraPackages = [ ];
-      extraBuildCommands = mkExtraBuildCommands0 cc;
-    };
-
-  });
-
-  libraries = lib.makeExtensible (libraries: let
-    callPackage = newScope (libraries // buildLlvmTools // { inherit stdenv cmake libxml2 python3 isl release_version version fetch; });
-  in {
-
-    compiler-rt-libc = callPackage ./compiler-rt {
-      inherit llvm_meta;
-      stdenv = if (stdenv.hostPlatform.useLLVM or false) || (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isAarch64) || (stdenv.hostPlatform.isRiscV && stdenv.hostPlatform.is32bit)
-               then overrideCC stdenv buildLlvmTools.clangNoCompilerRtWithLibc
-               else stdenv;
-    };
-
-    compiler-rt-no-libc = callPackage ./compiler-rt {
-      inherit llvm_meta;
-      stdenv = if (stdenv.hostPlatform.useLLVM or false) || (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isAarch64)
-               then overrideCC stdenv buildLlvmTools.clangNoCompilerRt
-               else stdenv;
-    };
-
-    # N.B. condition is safe because without useLLVM both are the same.
-    compiler-rt = if stdenv.hostPlatform.isAndroid || (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isAarch64) || (stdenv.hostPlatform.libc == "newlib")
-      then libraries.compiler-rt-libc
-      else libraries.compiler-rt-no-libc;
-
-    stdenv = overrideCC stdenv buildLlvmTools.clang;
-
-    libcxxStdenv = overrideCC stdenv buildLlvmTools.libcxxClang;
-
-    libcxx = callPackage ./libcxx {
-      inherit llvm_meta;
-      stdenv = if (stdenv.hostPlatform.useLLVM or false) || (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isAarch64)
-               then overrideCC stdenv buildLlvmTools.clangNoLibcxx
-               else stdenv;
-    };
-
-    libcxxabi = callPackage ./libcxxabi {
-      inherit llvm_meta;
-      stdenv = if (stdenv.hostPlatform.useLLVM or false) || (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isAarch64)
-               then overrideCC stdenv buildLlvmTools.clangNoLibcxx
-               else stdenv;
-    };
-
-    libunwind = callPackage ./libunwind {
-      inherit llvm_meta;
-      stdenv = if (stdenv.hostPlatform.useLLVM or false) || (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isAarch64)
-               then overrideCC stdenv buildLlvmTools.clangNoLibcxx
-               else stdenv;
-    };
-
-    openmp = callPackage ./openmp {
-      inherit llvm_meta targetLlvm;
-    };
-  });
-  noExtend = extensible: builtins.removeAttrs extensible [ "extend" ];
-
-in { inherit tools libraries release_version; } // (noExtend libraries) // (noExtend tools)
--- a/llvm/11/llvm/default.nix
+++ b/llvm/11/llvm/default.nix
@ -1,363 +0,0 @@
-{ lib, stdenv, llvm_meta
-, pkgsBuildBuild
-, fetch
-, fetchpatch
-, cmake
-, python3
-, libffi
-, enableGoldPlugin ? false
-, libbfd
-, libpfm
-, libxml2
-, ncurses
-, version
-, release_version
-, zlib
-, buildLlvmTools
-, debugVersion ? false
-, doCheck ? stdenv.isLinux && (!stdenv.isx86_32) && (!stdenv.hostPlatform.isMusl) && (!stdenv.hostPlatform.isRiscV)
-  && (stdenv.hostPlatform == stdenv.buildPlatform)
-, enableManpages ? false
-, enableSharedLibraries ? !stdenv.hostPlatform.isStatic
-# broken for Ampere eMAG 8180 (c2.large.arm on Packet) #56245
-# broken for the armv7l builder
-, enablePFM ? stdenv.isLinux && !stdenv.hostPlatform.isAarch
-, enablePolly ? false # TODO should be on by default
-}:
-
-let
-  inherit (lib) optional optionals optionalString;
-
-  # Used when creating a version-suffixed symlink of libLLVM.dylib
-  shortVersion = with lib;
-    concatStringsSep "." (take 1 (splitString "." release_version));
-
-  # Ordinarily we would just the `doCheck` and `checkDeps` functionality
-  # `mkDerivation` gives us to manage our test dependencies (instead of breaking
-  # out `doCheck` as a package level attribute).
-  #
-  # Unfortunately `lit` does not forward `$PYTHONPATH` to children processes, in
-  # particular the children it uses to do feature detection.
-  #
-  # This means that python deps we add to `checkDeps` (which the python
-  # interpreter is made aware of via `$PYTHONPATH` – populated by the python
-  # setup hook) are not picked up by `lit` which causes it to skip tests.
-  #
-  # Adding `python3.withPackages (ps: [ ... ])` to `checkDeps` also doesn't work
-  # because this package is shadowed in `$PATH` by the regular `python3`
-  # package.
-  #
-  # So, we "manually" assemble one python derivation for the package to depend
-  # on, taking into account whether checks are enabled or not:
-  python = if doCheck then
-    let
-      checkDeps = ps: with ps; [ psutil ];
-    in python3.withPackages checkDeps
-  else python3;
-
-in stdenv.mkDerivation (rec {
-  pname = "llvm";
-  inherit version;
-
-  src = fetch pname "199yq3a214avcbi4kk2q0ajriifkvsr0l2dkx3a666m033ihi1ff";
-  polly_src = fetch "polly" "031r23ijhx7v93a5n33m2nc0x9xyqmx0d8xg80z7q971p6qd63sq";
-
-  unpackPhase = ''
-    unpackFile $src
-    mv llvm-${release_version}* llvm
-    sourceRoot=$PWD/llvm
-  '' + optionalString enablePolly ''
-    unpackFile $polly_src
-    mv polly-* $sourceRoot/tools/polly
-  '';
-
-  outputs = [ "out" "lib" "dev" "python" ];
-
-  nativeBuildInputs = [ cmake python ]
-    ++ optionals enableManpages [ python3.pkgs.sphinx python3.pkgs.recommonmark ];
-
-  buildInputs = [ libxml2 libffi ]
-    ++ optional enablePFM libpfm; # exegesis
-
-  propagatedBuildInputs = [ ncurses zlib ];
-
-  patches = [
-    # When cross-compiling we configure llvm-config-native with an approximation
-    # of the flags used for the normal LLVM build. To avoid the need for building
-    # a native libLLVM.so (which would fail) we force llvm-config to be linked
-    # statically against the necessary LLVM components always.
-    ../../llvm-config-link-static.patch
-
-    ./gnu-install-dirs.patch
-    # On older CPUs (e.g. Hydra/wendy) we'd be getting an error in this test.
-    (fetchpatch {
-      name = "uops-CMOV16rm-noreg.diff";
-      url = "https://github.com/llvm/llvm-project/commit/9e9f991ac033.diff";
-      sha256 = "sha256:12s8vr6ibri8b48h2z38f3afhwam10arfiqfy4yg37bmc054p5hi";
-      stripLen = 1;
-    })
-    # gcc-11 compat upstream patch
-    (fetchpatch {
-      url = "https://github.com/llvm/llvm-project/commit/b498303066a63a203d24f739b2d2e0e56dca70d1.patch";
-      sha256 = "sha256:0nh123kld0dgz2h941lng331dkj3wbm5lfxm375k1f569gv83hlk";
-      stripLen = 1;
-    })
-
-    # Fix invalid std::string(nullptr) for GCC 12
-    (fetchpatch {
-      name = "nvptx-gcc-12.patch";
-      url = "https://github.com/llvm/llvm-project/commit/99e64623ec9b31def9375753491cc6093c831809.patch";
-      sha256 = "0zjfjgavqzi2ypqwqnlvy6flyvdz8hi1anwv0ybwnm2zqixg7za3";
-      stripLen = 1;
-    })
-    (fetchpatch {
-      name = "dfaemitter-gcc-12.patch";
-      url = "https://github.com/llvm/llvm-project/commit/0841916e87a39e3c223c986e8da31e4a9a1432e3.patch";
-      sha256 = "1kckghvsngs51mqm82asy0s9vr19h8aqbw43a0w44mccqw6bzrwf";
-      stripLen = 1;
-    })
-
-    # Fix musl build.
-    (fetchpatch {
-      url = "https://github.com/llvm/llvm-project/commit/5cd554303ead0f8891eee3cd6d25cb07f5a7bf67.patch";
-      relative = "llvm";
-      hash = "sha256-XPbvNJ45SzjMGlNUgt/IgEvM2dHQpDOe6woUJY+nUYA=";
-    })
-
-    # Backport gcc-13 fixes with missing includes.
-    (fetchpatch {
-      name = "signals-gcc-13.patch";
-      url = "https://github.com/llvm/llvm-project/commit/ff1681ddb303223973653f7f5f3f3435b48a1983.patch";
-      hash = "sha256-CXwYxQezTq5vdmc8Yn88BUAEly6YZ5VEIA6X3y5NNOs=";
-      stripLen = 1;
-    })
-    (fetchpatch {
-      name = "base64-gcc-13.patch";
-      url = "https://github.com/llvm/llvm-project/commit/5e9be93566f39ee6cecd579401e453eccfbe81e5.patch";
-      hash = "sha256-PAwrVrvffPd7tphpwCkYiz+67szPRzRB2TXBvKfzQ7U=";
-      stripLen = 1;
-    })
-  ] ++ lib.optional enablePolly ./gnu-install-dirs-polly.patch;
-
-  postPatch = optionalString stdenv.isDarwin ''
-    substituteInPlace cmake/modules/AddLLVM.cmake \
-      --replace 'set(_install_name_dir INSTALL_NAME_DIR "@rpath")' "set(_install_name_dir)" \
-      --replace 'set(_install_rpath "@loader_path/../''${CMAKE_INSTALL_LIBDIR}''${LLVM_LIBDIR_SUFFIX}" ''${extra_libdir})' ""
-  '' + ''
-    # FileSystem permissions tests fail with various special bits
-    substituteInPlace unittests/Support/CMakeLists.txt \
-      --replace "Path.cpp" ""
-    rm unittests/Support/Path.cpp
-  '' + optionalString stdenv.hostPlatform.isMusl ''
-    patch -p1 -i ${../../TLI-musl.patch}
-    substituteInPlace unittests/Support/CMakeLists.txt \
-      --replace "add_subdirectory(DynamicLibrary)" ""
-    rm unittests/Support/DynamicLibrary/DynamicLibraryTest.cpp
-    # valgrind unhappy with musl or glibc, but fails w/musl only
-    rm test/CodeGen/AArch64/wineh4.mir
-  '' + optionalString stdenv.hostPlatform.isAarch32 ''
-    # skip failing X86 test cases on 32-bit ARM
-    rm test/DebugInfo/X86/convert-debugloc.ll
-    rm test/DebugInfo/X86/convert-inlined.ll
-    rm test/DebugInfo/X86/convert-linked.ll
-    rm test/tools/dsymutil/X86/op-convert.test
-    rm test/tools/gold/X86/split-dwarf.ll
-    rm test/tools/llvm-readobj/ELF/dependent-libraries.test
-  '' + optionalString (stdenv.hostPlatform.system == "armv6l-linux") ''
-    # Seems to require certain floating point hardware (NEON?)
-    rm test/ExecutionEngine/frem.ll
-  '' + ''
-    patchShebangs test/BugPoint/compile-custom.ll.py
-  '' + ''
-    # Tweak tests to ignore namespace part of type to support
-    # gcc-12: https://gcc.gnu.org/PR103598.
-    # The change below mangles strings like:
-    #    CHECK-NEXT: Starting llvm::Function pass manager run.
-    # to:
-    #    CHECK-NEXT: Starting {{.*}}Function pass manager run.
-    for f in \
-      test/Other/new-pass-manager.ll \
-      test/Other/new-pm-defaults.ll \
-      test/Other/new-pm-lto-defaults.ll \
-      test/Other/new-pm-thinlto-defaults.ll \
-      test/Other/pass-pipeline-parsing.ll \
-      test/Transforms/Inline/cgscc-incremental-invalidate.ll \
-      test/Transforms/Inline/clear-analyses.ll \
-      test/Transforms/LoopUnroll/unroll-loop-invalidation.ll \
-      test/Transforms/SCCP/ipsccp-preserve-analysis.ll \
-      test/Transforms/SCCP/preserve-analysis.ll \
-      test/Transforms/SROA/dead-inst.ll \
-      test/tools/gold/X86/new-pm.ll \
-      ; do
-      echo "PATCH: $f"
-      substituteInPlace $f \
-        --replace 'Starting llvm::' 'Starting {{.*}}' \
-        --replace 'Finished llvm::' 'Finished {{.*}}'
-    done
-  '';
-
-  preConfigure = ''
-    # Workaround for configure flags that need to have spaces
-    cmakeFlagsArray+=(
-      -DLLVM_LIT_ARGS='-svj''${NIX_BUILD_CORES} --no-progress-bar'
-    )
-  '';
-
-  # hacky fix: created binaries need to be run before installation
-  preBuild = ''
-    mkdir -p $out/
-    ln -sv $PWD/lib $out
-  '';
-
-  # E.g. mesa.drivers use the build-id as a cache key (see #93946):
-  LDFLAGS = optionalString (enableSharedLibraries && !stdenv.isDarwin) "-Wl,--build-id=sha1";
-
-  cmakeBuildType = if debugVersion then "Debug" else "Release";
-
-  cmakeFlags = with stdenv; let
-    # These flags influence llvm-config's BuildVariables.inc in addition to the
-    # general build. We need to make sure these are also passed via
-    # CROSS_TOOLCHAIN_FLAGS_NATIVE when cross-compiling or llvm-config-native
-    # will return different results from the cross llvm-config.
-    #
-    # Some flags don't need to be repassed because LLVM already does so (like
-    # CMAKE_BUILD_TYPE), others are irrelevant to the result.
-    flagsForLlvmConfig = [
-      "-DLLVM_INSTALL_CMAKE_DIR=${placeholder "dev"}/lib/cmake/llvm/"
-      "-DLLVM_ENABLE_RTTI=ON"
-    ] ++ optionals enableSharedLibraries [
-      "-DLLVM_LINK_LLVM_DYLIB=ON"
-    ];
-  in flagsForLlvmConfig ++ [
-    "-DLLVM_INSTALL_UTILS=ON"  # Needed by rustc
-    "-DLLVM_BUILD_TESTS=${if doCheck then "ON" else "OFF"}"
-    "-DLLVM_ENABLE_FFI=ON"
-    "-DLLVM_HOST_TRIPLE=${stdenv.hostPlatform.config}"
-    "-DLLVM_DEFAULT_TARGET_TRIPLE=${stdenv.hostPlatform.config}"
-    "-DLLVM_ENABLE_DUMP=ON"
-  ] ++ optionals stdenv.hostPlatform.isStatic [
-    # Disables building of shared libs, -fPIC is still injected by cc-wrapper
-    "-DLLVM_ENABLE_PIC=OFF"
-    "-DLLVM_BUILD_STATIC=ON"
-    # libxml2 needs to be disabled because the LLVM build system ignores its .la
-    # file and doesn't link zlib as well.
-    # https://github.com/ClangBuiltLinux/tc-build/issues/150#issuecomment-845418812
-    "-DLLVM_ENABLE_LIBXML2=OFF"
-    # This is a Shared Library not tied to LLVM_ENABLE_PIC
-    "-DLLVM_TOOL_REMARKS_SHLIB_BUILD=OFF"
-  ] ++ optionals enableManpages [
-    "-DLLVM_BUILD_DOCS=ON"
-    "-DLLVM_ENABLE_SPHINX=ON"
-    "-DSPHINX_OUTPUT_MAN=ON"
-    "-DSPHINX_OUTPUT_HTML=OFF"
-    "-DSPHINX_WARNINGS_AS_ERRORS=OFF"
-  ] ++ optionals (enableGoldPlugin) [
-    "-DLLVM_BINUTILS_INCDIR=${libbfd.dev}/include"
-  ] ++ optionals isDarwin [
-    "-DLLVM_ENABLE_LIBCXX=ON"
-    "-DCAN_TARGET_i386=false"
-  ] ++ optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
-    "-DCMAKE_CROSSCOMPILING=True"
-    "-DLLVM_TABLEGEN=${buildLlvmTools.llvm}/bin/llvm-tblgen"
-    (
-      let
-        nativeCC = pkgsBuildBuild.targetPackages.stdenv.cc;
-        nativeBintools = nativeCC.bintools.bintools;
-        nativeToolchainFlags = [
-          "-DCMAKE_C_COMPILER=${nativeCC}/bin/${nativeCC.targetPrefix}cc"
-          "-DCMAKE_CXX_COMPILER=${nativeCC}/bin/${nativeCC.targetPrefix}c++"
-          "-DCMAKE_AR=${nativeBintools}/bin/${nativeBintools.targetPrefix}ar"
-          "-DCMAKE_STRIP=${nativeBintools}/bin/${nativeBintools.targetPrefix}strip"
-          "-DCMAKE_RANLIB=${nativeBintools}/bin/${nativeBintools.targetPrefix}ranlib"
-        ];
-        # We need to repass the custom GNUInstallDirs values, otherwise CMake
-        # will choose them for us, leading to wrong results in llvm-config-native
-        nativeInstallFlags = [
-          "-DCMAKE_INSTALL_PREFIX=${placeholder "out"}"
-          "-DCMAKE_INSTALL_BINDIR=${placeholder "out"}/bin"
-          "-DCMAKE_INSTALL_INCLUDEDIR=${placeholder "dev"}/include"
-          "-DCMAKE_INSTALL_LIBDIR=${placeholder "lib"}/lib"
-          "-DCMAKE_INSTALL_LIBEXECDIR=${placeholder "lib"}/libexec"
-        ];
-      in "-DCROSS_TOOLCHAIN_FLAGS_NATIVE:list="
-      + lib.concatStringsSep ";" (lib.concatLists [
-        flagsForLlvmConfig
-        nativeToolchainFlags
-        nativeInstallFlags
-      ])
-    )
-  ];
-
-  postBuild = ''
-    rm -fR $out
-  '';
-
-  preCheck = ''
-    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH''${LD_LIBRARY_PATH:+:}$PWD/lib
-  '';
-
-  postInstall = ''
-    mkdir -p $python/share
-    mv $out/share/opt-viewer $python/share/opt-viewer
-    moveToOutput "bin/llvm-config*" "$dev"
-    substituteInPlace "$dev/lib/cmake/llvm/LLVMExports-${if debugVersion then "debug" else "release"}.cmake" \
-      --replace "\''${_IMPORT_PREFIX}/lib/lib" "$lib/lib/lib" \
-      --replace "$out/bin/llvm-config" "$dev/bin/llvm-config"
-    substituteInPlace "$dev/lib/cmake/llvm/LLVMConfig.cmake" \
-      --replace 'set(LLVM_BINARY_DIR "''${LLVM_INSTALL_PREFIX}")' 'set(LLVM_BINARY_DIR "''${LLVM_INSTALL_PREFIX}'"$lib"'")'
-  ''
-  + optionalString (stdenv.isDarwin && enableSharedLibraries) ''
-    ln -s $lib/lib/libLLVM.dylib $lib/lib/libLLVM-${shortVersion}.dylib
-    ln -s $lib/lib/libLLVM.dylib $lib/lib/libLLVM-${release_version}.dylib
-  ''
-  + optionalString (stdenv.buildPlatform != stdenv.hostPlatform) ''
-    cp NATIVE/bin/llvm-config $dev/bin/llvm-config-native
-  '';
-
-  inherit doCheck;
-
-  checkTarget = "check-all";
-
-  requiredSystemFeatures = [ "big-parallel" ];
-  meta = llvm_meta // {
-    homepage = "https://llvm.org/";
-    description = "A collection of modular and reusable compiler and toolchain technologies";
-    longDescription = ''
-      The LLVM Project is a collection of modular and reusable compiler and
-      toolchain technologies. Despite its name, LLVM has little to do with
-      traditional virtual machines. The name "LLVM" itself is not an acronym; it
-      is the full name of the project.
-      LLVM began as a research project at the University of Illinois, with the
-      goal of providing a modern, SSA-based compilation strategy capable of
-      supporting both static and dynamic compilation of arbitrary programming
-      languages. Since then, LLVM has grown to be an umbrella project consisting
-      of a number of subprojects, many of which are being used in production by
-      a wide variety of commercial and open source projects as well as being
-      widely used in academic research. Code in the LLVM project is licensed
-      under the "Apache 2.0 License with LLVM exceptions".
-    '';
-  };
-} // lib.optionalAttrs enableManpages {
-  pname = "llvm-manpages";
-
-  buildPhase = ''
-    make docs-llvm-man
-  '';
-
-  propagatedBuildInputs = [];
-
-  installPhase = ''
-    make -C docs install
-  '';
-
-  postPatch = null;
-  postInstall = null;
-
-  outputs = [ "out" ];
-
-  doCheck = false;
-
-  meta = llvm_meta // {
-    description = "man pages for LLVM ${version}";
-  };
-})
--- a/llvm/11/llvm/gnu-install-dirs-polly.patch
+++ b/llvm/11/llvm/gnu-install-dirs-polly.patch
@ -1,106 +0,0 @@
-diff --git a/tools/polly/CMakeLists.txt b/tools/polly/CMakeLists.txt
-index 9939097f743e..8cc538da912a 100644
--- a/tools/polly/CMakeLists.txt
-+++ b/tools/polly/CMakeLists.txt
-@@ -2,7 +2,11 @@
- if (NOT DEFINED LLVM_MAIN_SRC_DIR)
-   project(Polly)
-   cmake_minimum_required(VERSION 3.4.3)
-+endif()
-+
-+include(GNUInstallDirs)
- 
-+if (NOT DEFINED LLVM_MAIN_SRC_DIR)
-   # Where is LLVM installed?
-   find_package(LLVM CONFIG REQUIRED)
-   set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${LLVM_CMAKE_DIR})
-@@ -145,14 +149,14 @@ include_directories(
- 
- if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
-   install(DIRECTORY include/
-    DESTINATION include
-+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-     FILES_MATCHING
-     PATTERN "*.h"
-     PATTERN ".svn" EXCLUDE
-     )
- 
-   install(DIRECTORY ${POLLY_BINARY_DIR}/include/
-    DESTINATION include
-+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-     FILES_MATCHING
-     PATTERN "*.h"
-     PATTERN "CMakeFiles" EXCLUDE
-diff --git a/tools/polly/cmake/CMakeLists.txt b/tools/polly/cmake/CMakeLists.txt
-index 211f95512717..f9e04a4844b6 100644
--- a/tools/polly/cmake/CMakeLists.txt
-+++ b/tools/polly/cmake/CMakeLists.txt
-@@ -79,18 +79,18 @@ file(GENERATE
- 
- # Generate PollyConfig.cmake for the install tree.
- unset(POLLY_EXPORTS)
-set(POLLY_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}")
-+set(POLLY_INSTALL_PREFIX "")
- set(POLLY_CONFIG_LLVM_CMAKE_DIR "${LLVM_BINARY_DIR}/${LLVM_INSTALL_PACKAGE_DIR}")
-set(POLLY_CONFIG_CMAKE_DIR "${POLLY_INSTALL_PREFIX}/${POLLY_INSTALL_PACKAGE_DIR}")
-set(POLLY_CONFIG_LIBRARY_DIRS "${POLLY_INSTALL_PREFIX}/lib${LLVM_LIBDIR_SUFFIX}")
-+set(POLLY_CONFIG_CMAKE_DIR "${POLLY_INSTALL_PREFIX}${CMAKE_INSTALL_PREFIX}/${POLLY_INSTALL_PACKAGE_DIR}")
-+set(POLLY_CONFIG_LIBRARY_DIRS "${POLLY_INSTALL_PREFIX}${CMAKE_INSTALL_FULL_LIBDIR}${LLVM_LIBDIR_SUFFIX}")
- if (POLLY_BUNDLED_ISL)
-   set(POLLY_CONFIG_INCLUDE_DIRS
-    "${POLLY_INSTALL_PREFIX}/include"
-    "${POLLY_INSTALL_PREFIX}/include/polly"
-+    "${POLLY_INSTALL_PREFIX}${CMAKE_INSTALL_FULL_LIBDIR}"
-+    "${POLLY_INSTALL_PREFIX}${CMAKE_INSTALL_FULL_LIBDIR}/polly"
-     )
- else()
-   set(POLLY_CONFIG_INCLUDE_DIRS
-    "${POLLY_INSTALL_PREFIX}/include"
-+    "${POLLY_INSTALL_PREFIX}${CMAKE_INSTALL_FULL_INCLUDEDIR}"
-     ${ISL_INCLUDE_DIRS}
-     )
- endif()
-@@ -100,12 +100,12 @@ endif()
- foreach(tgt IN LISTS POLLY_CONFIG_EXPORTED_TARGETS)
-   get_target_property(tgt_type ${tgt} TYPE)
-   if (tgt_type STREQUAL "EXECUTABLE")
-    set(tgt_prefix "bin/")
-+    set(tgt_prefix "${CMAKE_INSTALL_BINDIR}/")
-   else()
-    set(tgt_prefix "lib/")
-+    set(tgt_prefix "${CMAKE_INSTALL_LIBDIR}/")
-   endif()
- 
-  set(tgt_path "${CMAKE_INSTALL_PREFIX}/${tgt_prefix}$<TARGET_FILE_NAME:${tgt}>")
-+  set(tgt_path "${tgt_prefix}$<TARGET_FILE_NAME:${tgt}>")
-   file(RELATIVE_PATH tgt_path ${POLLY_CONFIG_CMAKE_DIR} ${tgt_path})
- 
-   if (NOT tgt_type STREQUAL "INTERFACE_LIBRARY")
-diff --git a/tools/polly/cmake/polly_macros.cmake b/tools/polly/cmake/polly_macros.cmake
-index 86de6f10686e..91f30891ccbe 100644
--- a/tools/polly/cmake/polly_macros.cmake
-+++ b/tools/polly/cmake/polly_macros.cmake
-@@ -44,8 +44,8 @@ macro(add_polly_library name)
-   if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "LLVMPolly")
-     install(TARGETS ${name}
-       EXPORT LLVMExports
-      LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
-      ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
-+	  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}
-+      ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX})
-   endif()
-   set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
- endmacro(add_polly_library)
-diff --git a/tools/polly/lib/External/CMakeLists.txt b/tools/polly/lib/External/CMakeLists.txt
-index 1039079cb49c..28b499ae1e9e 100644
--- a/tools/polly/lib/External/CMakeLists.txt
-+++ b/tools/polly/lib/External/CMakeLists.txt
-@@ -275,7 +275,7 @@ if (POLLY_BUNDLED_ISL)
-     install(DIRECTORY
-       ${ISL_SOURCE_DIR}/include/
-       ${ISL_BINARY_DIR}/include/
-      DESTINATION include/polly
-+      DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/polly
-       FILES_MATCHING
-       PATTERN "*.h"
-       PATTERN "CMakeFiles" EXCLUDE
--- a/llvm/11/llvm/gnu-install-dirs.patch
+++ b/llvm/11/llvm/gnu-install-dirs.patch
@ -1,417 +0,0 @@
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 247ad36d3845..815e2c4ba955 100644
--- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -269,15 +269,21 @@ if (CMAKE_BUILD_TYPE AND
-   message(FATAL_ERROR "Invalid value for CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}")
- endif()
- 
-+include(GNUInstallDirs)
-+
- set(LLVM_LIBDIR_SUFFIX "" CACHE STRING "Define suffix of library directory name (32/64)" )
- 
-set(LLVM_TOOLS_INSTALL_DIR "bin" CACHE STRING "Path for binary subdirectory (defaults to 'bin')")
-+set(LLVM_TOOLS_INSTALL_DIR "${CMAKE_INSTALL_BINDIR}" CACHE STRING
-+    "Path for binary subdirectory (defaults to 'bin')")
- mark_as_advanced(LLVM_TOOLS_INSTALL_DIR)
- 
- set(LLVM_UTILS_INSTALL_DIR "${LLVM_TOOLS_INSTALL_DIR}" CACHE STRING
-     "Path to install LLVM utilities (enabled by LLVM_INSTALL_UTILS=ON) (defaults to LLVM_TOOLS_INSTALL_DIR)")
- mark_as_advanced(LLVM_UTILS_INSTALL_DIR)
- 
-+set(LLVM_INSTALL_CMAKE_DIR "${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/cmake/llvm" CACHE STRING
-+	"Path for CMake subdirectory (defaults to lib/cmake/llvm)" )
-+
- # They are used as destination of target generators.
- set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin)
- set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX})
-@@ -559,9 +565,9 @@ option (LLVM_ENABLE_SPHINX "Use Sphinx to generate llvm documentation." OFF)
- option (LLVM_ENABLE_OCAMLDOC "Build OCaml bindings documentation." ON)
- option (LLVM_ENABLE_BINDINGS "Build bindings." ON)
- 
-set(LLVM_INSTALL_DOXYGEN_HTML_DIR "share/doc/llvm/doxygen-html"
-+set(LLVM_INSTALL_DOXYGEN_HTML_DIR "${CMAKE_INSTALL_DOCDIR}/${project}/doxygen-html"
-     CACHE STRING "Doxygen-generated HTML documentation install directory")
-set(LLVM_INSTALL_OCAMLDOC_HTML_DIR "share/doc/llvm/ocaml-html"
-+set(LLVM_INSTALL_OCAMLDOC_HTML_DIR "${CMAKE_INSTALL_DOCDIR}/${project}/ocaml-html"
-     CACHE STRING "OCamldoc-generated HTML documentation install directory")
- 
- option (LLVM_BUILD_EXTERNAL_COMPILER_RT
-@@ -1107,7 +1113,7 @@ endif()
- 
- if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
-   install(DIRECTORY include/llvm include/llvm-c
-    DESTINATION include
-+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-     COMPONENT llvm-headers
-     FILES_MATCHING
-     PATTERN "*.def"
-@@ -1119,7 +1125,7 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
-     )
- 
-   install(DIRECTORY ${LLVM_INCLUDE_DIR}/llvm ${LLVM_INCLUDE_DIR}/llvm-c
-    DESTINATION include
-+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-     COMPONENT llvm-headers
-     FILES_MATCHING
-     PATTERN "*.def"
-@@ -1134,13 +1140,13 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
- 
-   if (LLVM_INSTALL_MODULEMAPS)
-     install(DIRECTORY include/llvm include/llvm-c
-            DESTINATION include
-+            DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-             COMPONENT llvm-headers
-             FILES_MATCHING
-             PATTERN "module.modulemap"
-             )
-     install(FILES include/llvm/module.install.modulemap
-            DESTINATION include/llvm
-+            DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/llvm
-             COMPONENT llvm-headers
-             RENAME "module.extern.modulemap"
-             )
-diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
-index b74adc11ade9..a5aa258cde30 100644
--- a/cmake/modules/AddLLVM.cmake
-+++ b/cmake/modules/AddLLVM.cmake
-@@ -766,9 +766,9 @@ macro(add_llvm_library name)
- 
-       install(TARGETS ${name}
-               ${export_to_llvmexports}
-              LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
-              ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
-              RUNTIME DESTINATION bin COMPONENT ${name})
-+              LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
-+              ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
-+              RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT ${name})
- 
-       if (NOT LLVM_ENABLE_IDE)
-         add_llvm_install_targets(install-${name}
-@@ -981,7 +981,7 @@ function(process_llvm_pass_plugins)
-           "set(LLVM_STATIC_EXTENSIONS ${LLVM_STATIC_EXTENSIONS})")
-       install(FILES
-           ${llvm_cmake_builddir}/LLVMConfigExtensions.cmake
-          DESTINATION ${LLVM_INSTALL_PACKAGE_DIR}
-+          DESTINATION ${LLVM_INSTALL_CMAKE_DIR}
-           COMPONENT cmake-exports)
- 
-       set(ExtensionDef "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def")
-@@ -1201,7 +1201,7 @@ macro(add_llvm_example name)
-   endif()
-   add_llvm_executable(${name} ${ARGN})
-   if( LLVM_BUILD_EXAMPLES )
-    install(TARGETS ${name} RUNTIME DESTINATION examples)
-+    install(TARGETS ${name} RUNTIME DESTINATION ${CMAKE_INSTALL_DOCDIR}/examples)
-   endif()
-   set_target_properties(${name} PROPERTIES FOLDER "Examples")
- endmacro(add_llvm_example name)
-@@ -1819,7 +1819,7 @@ function(llvm_install_library_symlink name dest type)
-   set(full_name ${CMAKE_${type}_LIBRARY_PREFIX}${name}${CMAKE_${type}_LIBRARY_SUFFIX})
-   set(full_dest ${CMAKE_${type}_LIBRARY_PREFIX}${dest}${CMAKE_${type}_LIBRARY_SUFFIX})
- 
-  set(output_dir lib${LLVM_LIBDIR_SUFFIX})
-+  set(output_dir ${CMAKE_INSTALL_FULL_LIBDIR}${LLVM_LIBDIR_SUFFIX})
-   if(WIN32 AND "${type}" STREQUAL "SHARED")
-     set(output_dir bin)
-   endif()
-@@ -1836,7 +1836,7 @@ function(llvm_install_library_symlink name dest type)
-   endif()
- endfunction()
- 
-function(llvm_install_symlink name dest)
-+function(llvm_install_symlink name dest output_dir)
-   cmake_parse_arguments(ARG "ALWAYS_GENERATE" "COMPONENT" "" ${ARGN})
-   foreach(path ${CMAKE_MODULE_PATH})
-     if(EXISTS ${path}/LLVMInstallSymlink.cmake)
-@@ -1859,7 +1859,7 @@ function(llvm_install_symlink name dest)
-   set(full_dest ${dest}${CMAKE_EXECUTABLE_SUFFIX})
- 
-   install(SCRIPT ${INSTALL_SYMLINK}
-          CODE "install_symlink(${full_name} ${full_dest} ${LLVM_TOOLS_INSTALL_DIR})"
-+          CODE "install_symlink(${full_name} ${full_dest} ${output_dir})"
-           COMPONENT ${component})
- 
-   if (NOT LLVM_ENABLE_IDE AND NOT ARG_ALWAYS_GENERATE)
-@@ -1942,7 +1942,8 @@ function(add_llvm_tool_symlink link_name target)
-     endif()
- 
-     if ((TOOL_IS_TOOLCHAIN OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY) AND LLVM_BUILD_TOOLS)
-      llvm_install_symlink(${link_name} ${target})
-+      GNUInstallDirs_get_absolute_install_dir(output_dir LLVM_TOOLS_INSTALL_DIR)
-+      llvm_install_symlink(${link_name} ${target} ${output_dir})
-     endif()
-   endif()
- endfunction()
-@@ -2064,9 +2065,9 @@ function(llvm_setup_rpath name)
- 
-   if (APPLE)
-     set(_install_name_dir INSTALL_NAME_DIR "@rpath")
-    set(_install_rpath "@loader_path/../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
-+    set(_install_rpath "@loader_path/../${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
-   elseif(UNIX)
-    set(_install_rpath "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
-+    set(_install_rpath "\$ORIGIN/../${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
-     if(${CMAKE_SYSTEM_NAME} MATCHES "(FreeBSD|DragonFly)")
-       set_property(TARGET ${name} APPEND_STRING PROPERTY
-                    LINK_FLAGS " -Wl,-z,origin ")
-diff --git a/cmake/modules/AddOCaml.cmake b/cmake/modules/AddOCaml.cmake
-index 554046b20edf..4d1ad980641e 100644
--- a/cmake/modules/AddOCaml.cmake
-+++ b/cmake/modules/AddOCaml.cmake
-@@ -144,9 +144,9 @@ function(add_ocaml_library name)
-   endforeach()
- 
-   if( APPLE )
-    set(ocaml_rpath "@executable_path/../../../lib${LLVM_LIBDIR_SUFFIX}")
-+    set(ocaml_rpath "@executable_path/../../../${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}")
-   elseif( UNIX )
-    set(ocaml_rpath "\\$ORIGIN/../../../lib${LLVM_LIBDIR_SUFFIX}")
-+    set(ocaml_rpath "\\$ORIGIN/../../../${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}")
-   endif()
-   list(APPEND ocaml_flags "-ldopt" "-Wl,-rpath,${ocaml_rpath}")
- 
-diff --git a/cmake/modules/AddSphinxTarget.cmake b/cmake/modules/AddSphinxTarget.cmake
-index b5babb30abcf..190b1222a9f9 100644
--- a/cmake/modules/AddSphinxTarget.cmake
-+++ b/cmake/modules/AddSphinxTarget.cmake
-@@ -84,7 +84,7 @@ function (add_sphinx_target builder project)
-         endif()
-       elseif (builder STREQUAL html)
-         string(TOUPPER "${project}" project_upper)
-        set(${project_upper}_INSTALL_SPHINX_HTML_DIR "share/doc/${project}/html"
-+        set(${project_upper}_INSTALL_SPHINX_HTML_DIR "${CMAKE_INSTALL_DOCDIR}/${project}/html"
-             CACHE STRING "HTML documentation install directory for ${project}")
- 
-         # '/.' indicates: copy the contents of the directory directly into
-diff --git a/cmake/modules/CMakeLists.txt b/cmake/modules/CMakeLists.txt
-index 4b8879f65fe4..f01920bcc60f 100644
--- a/cmake/modules/CMakeLists.txt
-+++ b/cmake/modules/CMakeLists.txt
-@@ -1,4 +1,4 @@
-set(LLVM_INSTALL_PACKAGE_DIR lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm)
-+set(LLVM_INSTALL_PACKAGE_DIR ${LLVM_INSTALL_CMAKE_DIR} CACHE STRING "Path for CMake subdirectory (defaults to 'cmake/llvm')")
- set(llvm_cmake_builddir "${LLVM_BINARY_DIR}/${LLVM_INSTALL_PACKAGE_DIR}")
- 
- # First for users who use an installed LLVM, create the LLVMExports.cmake file.
-@@ -108,13 +108,13 @@ foreach(p ${_count})
-   set(LLVM_CONFIG_CODE "${LLVM_CONFIG_CODE}
- get_filename_component(LLVM_INSTALL_PREFIX \"\${LLVM_INSTALL_PREFIX}\" PATH)")
- endforeach(p)
-set(LLVM_CONFIG_INCLUDE_DIRS "\${LLVM_INSTALL_PREFIX}/include")
-+set(LLVM_CONFIG_INCLUDE_DIRS "\${LLVM_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}")
- set(LLVM_CONFIG_INCLUDE_DIR "${LLVM_CONFIG_INCLUDE_DIRS}")
- set(LLVM_CONFIG_MAIN_INCLUDE_DIR "${LLVM_CONFIG_INCLUDE_DIRS}")
-set(LLVM_CONFIG_LIBRARY_DIRS "\${LLVM_INSTALL_PREFIX}/lib\${LLVM_LIBDIR_SUFFIX}")
-+set(LLVM_CONFIG_LIBRARY_DIRS "\${LLVM_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}\${LLVM_LIBDIR_SUFFIX}")
- set(LLVM_CONFIG_CMAKE_DIR "\${LLVM_INSTALL_PREFIX}/${LLVM_INSTALL_PACKAGE_DIR}")
- set(LLVM_CONFIG_BINARY_DIR "\${LLVM_INSTALL_PREFIX}")
-set(LLVM_CONFIG_TOOLS_BINARY_DIR "\${LLVM_INSTALL_PREFIX}/bin")
-+set(LLVM_CONFIG_TOOLS_BINARY_DIR "\${LLVM_INSTALL_PREFIX}/${CMAKE_INSTALL_BINDIR}")
- 
- # Generate a default location for lit
- if (LLVM_INSTALL_UTILS AND LLVM_BUILD_UTILS)
-diff --git a/cmake/modules/LLVMInstallSymlink.cmake b/cmake/modules/LLVMInstallSymlink.cmake
-index 09fed8085c23..aa79f192abf0 100644
--- a/cmake/modules/LLVMInstallSymlink.cmake
-+++ b/cmake/modules/LLVMInstallSymlink.cmake
-@@ -10,7 +10,7 @@ function(install_symlink name target outdir)
-     set(LINK_OR_COPY copy)
-   endif()
- 
-  set(bindir "${DESTDIR}${CMAKE_INSTALL_PREFIX}/${outdir}/")
-+  set(bindir "${DESTDIR}${outdir}/")
- 
-   message(STATUS "Creating ${name}")
- 
-diff --git a/docs/CMake.rst b/docs/CMake.rst
-index 1f908d3e95b1..1315e0aa40e1 100644
--- a/docs/CMake.rst
-+++ b/docs/CMake.rst
-@@ -196,7 +196,7 @@ CMake manual, or execute ``cmake --help-variable VARIABLE_NAME``.
- **LLVM_LIBDIR_SUFFIX**:STRING
-   Extra suffix to append to the directory where libraries are to be
-   installed. On a 64-bit architecture, one could use ``-DLLVM_LIBDIR_SUFFIX=64``
-  to install libraries to ``/usr/lib64``.
-+  to install libraries to ``/usr/lib64``. See also ``CMAKE_INSTALL_LIBDIR``.
- 
- **CMAKE_C_FLAGS**:STRING
-   Extra flags to use when compiling C source files.
-@@ -516,8 +516,8 @@ LLVM-specific variables
- 
- **LLVM_INSTALL_DOXYGEN_HTML_DIR**:STRING
-   The path to install Doxygen-generated HTML documentation to. This path can
-  either be absolute or relative to the CMAKE_INSTALL_PREFIX. Defaults to
-  `share/doc/llvm/doxygen-html`.
-+  either be absolute or relative to the ``CMAKE_INSTALL_PREFIX``. Defaults to
-+  `${CMAKE_INSTALL_DOCDIR}/${project}/doxygen-html`.
- 
- **LLVM_ENABLE_SPHINX**:BOOL
-   If specified, CMake will search for the ``sphinx-build`` executable and will make
-@@ -548,13 +548,33 @@ LLVM-specific variables
- 
- **LLVM_INSTALL_SPHINX_HTML_DIR**:STRING
-   The path to install Sphinx-generated HTML documentation to. This path can
-  either be absolute or relative to the CMAKE_INSTALL_PREFIX. Defaults to
-  `share/doc/llvm/html`.
-+  either be absolute or relative to the ``CMAKE_INSTALL_PREFIX``. Defaults to
-+  `${CMAKE_INSTALL_DOCDIR}/${project}/html`.
- 
- **LLVM_INSTALL_OCAMLDOC_HTML_DIR**:STRING
-   The path to install OCamldoc-generated HTML documentation to. This path can
-  either be absolute or relative to the CMAKE_INSTALL_PREFIX. Defaults to
-  `share/doc/llvm/ocaml-html`.
-+  either be absolute or relative to the ``CMAKE_INSTALL_PREFIX``. Defaults to
-+  `${CMAKE_INSTALL_DOCDIR}/${project}/ocaml-html`.
-+
-+**CMAKE_INSTALL_BINDIR**:STRING
-+  The path to install binary tools, relative to the ``CMAKE_INSTALL_PREFIX``.
-+  Defaults to `bin`.
-+
-+**CMAKE_INSTALL_LIBDIR**:STRING
-+  The path to install libraries, relative to the ``CMAKE_INSTALL_PREFIX``.
-+  Defaults to `lib`.
-+
-+**CMAKE_INSTALL_INCLUDEDIR**:STRING
-+  The path to install header files, relative to the ``CMAKE_INSTALL_PREFIX``.
-+  Defaults to `include`.
-+
-+**CMAKE_INSTALL_DOCDIR**:STRING
-+  The path to install documentation, relative to the ``CMAKE_INSTALL_PREFIX``.
-+  Defaults to `share/doc`.
-+
-+**CMAKE_INSTALL_MANDIR**:STRING
-+  The path to install manpage files, relative to the ``CMAKE_INSTALL_PREFIX``.
-+  Defaults to `share/man`.
- 
- **LLVM_CREATE_XCODE_TOOLCHAIN**:BOOL
-   macOS Only: If enabled CMake will generate a target named
-@@ -752,9 +772,11 @@ the ``cmake`` command or by setting it directly in ``ccmake`` or ``cmake-gui``).
- 
- This file is available in two different locations.
- 
-* ``<INSTALL_PREFIX>/lib/cmake/llvm/LLVMConfig.cmake`` where
-  ``<INSTALL_PREFIX>`` is the install prefix of an installed version of LLVM.
-  On Linux typically this is ``/usr/lib/cmake/llvm/LLVMConfig.cmake``.
-+* ``<LLVM_INSTALL_PACKAGE_DIR>LLVMConfig.cmake`` where
-+  ``<LLVM_INSTALL_PACKAGE_DIR>`` is the location where LLVM CMake modules are
-+  installed as part of an installed version of LLVM. This is typically
-+  ``cmake/llvm/`` within the lib directory. On Linux, this is typically
-+  ``/usr/lib/cmake/llvm/LLVMConfig.cmake``.
- 
- * ``<LLVM_BUILD_ROOT>/lib/cmake/llvm/LLVMConfig.cmake`` where
-   ``<LLVM_BUILD_ROOT>`` is the root of the LLVM build tree. **Note: this is only
-diff --git a/examples/Bye/CMakeLists.txt b/examples/Bye/CMakeLists.txt
-index bb96edb4b4bf..678c22fb43c8 100644
--- a/examples/Bye/CMakeLists.txt
-+++ b/examples/Bye/CMakeLists.txt
-@@ -14,6 +14,6 @@ if (NOT WIN32)
-     BUILDTREE_ONLY
-    )
- 
-  install(TARGETS ${name} RUNTIME DESTINATION examples)
-+  install(TARGETS ${name} RUNTIME DESTINATION ${CMAKE_INSTALL_DOCDIR}/examples)
-   set_target_properties(${name} PROPERTIES FOLDER "Examples")
- endif()
-diff --git a/include/llvm/CMakeLists.txt b/include/llvm/CMakeLists.txt
-index b46319f24fc8..2feabd1954e4 100644
--- a/include/llvm/CMakeLists.txt
-+++ b/include/llvm/CMakeLists.txt
-@@ -5,5 +5,5 @@ add_subdirectory(Frontend)
- # If we're doing an out-of-tree build, copy a module map for generated
- # header files into the build area.
- if (NOT "${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
-  configure_file(module.modulemap.build module.modulemap COPYONLY)
-+  configure_file(module.modulemap.build ${LLVM_INCLUDE_DIR}/module.modulemap COPYONLY)
- endif (NOT "${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
-diff --git a/tools/llvm-config/BuildVariables.inc.in b/tools/llvm-config/BuildVariables.inc.in
-index 63cef75368b7..6295478b1f3d 100644
--- a/tools/llvm-config/BuildVariables.inc.in
-+++ b/tools/llvm-config/BuildVariables.inc.in
-@@ -23,6 +23,10 @@
- #define LLVM_CXXFLAGS "@LLVM_CXXFLAGS@"
- #define LLVM_BUILDMODE "@LLVM_BUILDMODE@"
- #define LLVM_LIBDIR_SUFFIX "@LLVM_LIBDIR_SUFFIX@"
-+#define LLVM_INSTALL_BINDIR "@CMAKE_INSTALL_BINDIR@"
-+#define LLVM_INSTALL_LIBDIR "@CMAKE_INSTALL_LIBDIR@"
-+#define LLVM_INSTALL_INCLUDEDIR "@CMAKE_INSTALL_INCLUDEDIR@"
-+#define LLVM_INSTALL_CMAKEDIR "@LLVM_INSTALL_CMAKE_DIR@"
- #define LLVM_TARGETS_BUILT "@LLVM_TARGETS_BUILT@"
- #define LLVM_SYSTEM_LIBS "@LLVM_SYSTEM_LIBS@"
- #define LLVM_BUILD_SYSTEM "@LLVM_BUILD_SYSTEM@"
-diff --git a/tools/llvm-config/llvm-config.cpp b/tools/llvm-config/llvm-config.cpp
-index 7e74b7c90816..f185e9283f83 100644
--- a/tools/llvm-config/llvm-config.cpp
-+++ b/tools/llvm-config/llvm-config.cpp
-@@ -358,12 +358,26 @@ int main(int argc, char **argv) {
-         ("-I" + ActiveIncludeDir + " " + "-I" + ActiveObjRoot + "/include");
-   } else {
-     ActivePrefix = CurrentExecPrefix;
-    ActiveIncludeDir = ActivePrefix + "/include";
-    SmallString<256> path(StringRef(LLVM_TOOLS_INSTALL_DIR));
-    sys::fs::make_absolute(ActivePrefix, path);
-    ActiveBinDir = std::string(path.str());
-    ActiveLibDir = ActivePrefix + "/lib" + LLVM_LIBDIR_SUFFIX;
-    ActiveCMakeDir = ActiveLibDir + "/cmake/llvm";
-+    {
-+      SmallString<256> path(StringRef(LLVM_INSTALL_INCLUDEDIR));
-+      sys::fs::make_absolute(ActivePrefix, path);
-+      ActiveIncludeDir = std::string(path.str());
-+    }
-+    {
-+      SmallString<256> path(StringRef(LLVM_INSTALL_BINDIR));
-+      sys::fs::make_absolute(ActivePrefix, path);
-+      ActiveBinDir = std::string(path.str());
-+    }
-+    {
-+      SmallString<256> path(StringRef(LLVM_INSTALL_LIBDIR LLVM_LIBDIR_SUFFIX));
-+      sys::fs::make_absolute(ActivePrefix, path);
-+      ActiveLibDir = std::string(path.str());
-+    }
-+    {
-+      SmallString<256> path(StringRef(LLVM_INSTALL_CMAKEDIR));
-+      sys::fs::make_absolute(ActivePrefix, path);
-+      ActiveCMakeDir = std::string(path.str());
-+    }
-     ActiveIncludeOption = "-I" + ActiveIncludeDir;
-   }
- 
-diff --git a/tools/lto/CMakeLists.txt b/tools/lto/CMakeLists.txt
-index 2963f97cad88..69d66c9c9ca1 100644
--- a/tools/lto/CMakeLists.txt
-+++ b/tools/lto/CMakeLists.txt
-@@ -25,7 +25,7 @@ add_llvm_library(LTO SHARED INSTALL_WITH_TOOLCHAIN ${SOURCES} DEPENDS
-     intrinsics_gen)
- 
- install(FILES ${LLVM_MAIN_INCLUDE_DIR}/llvm-c/lto.h
-  DESTINATION include/llvm-c
-+  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/llvm-c
-   COMPONENT LTO)
- 
- if (APPLE)
-diff --git a/tools/opt-viewer/CMakeLists.txt b/tools/opt-viewer/CMakeLists.txt
-index ead73ec13a8f..250362021f17 100644
--- a/tools/opt-viewer/CMakeLists.txt
-+++ b/tools/opt-viewer/CMakeLists.txt
-@@ -8,7 +8,7 @@ set (files
- 
- foreach (file ${files})
-   install(PROGRAMS ${file}
-    DESTINATION share/opt-viewer
-+    DESTINATION ${CMAKE_INSTALL_DATADIR}/opt-viewer
-     COMPONENT opt-viewer)
- endforeach (file)
- 
-diff --git a/tools/remarks-shlib/CMakeLists.txt b/tools/remarks-shlib/CMakeLists.txt
-index e948496c603a..1f4df8a98b10 100644
--- a/tools/remarks-shlib/CMakeLists.txt
-+++ b/tools/remarks-shlib/CMakeLists.txt
-@@ -11,7 +11,7 @@ set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/Remarks.exports)
- add_llvm_library(Remarks SHARED INSTALL_WITH_TOOLCHAIN ${SOURCES})
- 
- install(FILES ${LLVM_MAIN_INCLUDE_DIR}/llvm-c/Remarks.h
-  DESTINATION include/llvm-c
-+  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/llvm-c
-   COMPONENT Remarks)
- 
- if (APPLE)
--- a/llvm/TLI-musl.patch
+++ b/llvm/TLI-musl.patch
@ -1,35 +0,0 @@
-From 5c571082fdaf61f6df19d9b7137dc26d71334058 Mon Sep 17 00:00:00 2001
-From: Natanael Copa <ncopa@alpinelinux.org>
-Date: Thu, 18 Feb 2016 10:33:04 +0100
-Subject: [PATCH 2/3] Fix build with musl libc
-
-On musl libc the fopen64 and fopen are the same thing, but for
-compatibility they have a `#define fopen64 fopen`. Same applies for
-fseek64, fstat64, fstatvfs64, ftello64, lstat64, stat64 and tmpfile64.
---
- include/llvm/Analysis/TargetLibraryInfo.h | 9 +++++++++
- 1 file changed, 9 insertions(+)
-
-diff --git a/include/llvm/Analysis/TargetLibraryInfo.h b/include/llvm/Analysis/TargetLibraryInfo.h
-index 7becdf0..7f14427 100644
--- a/include/llvm/Analysis/TargetLibraryInfo.h
-+++ b/include/llvm/Analysis/TargetLibraryInfo.h
-@@ -18,6 +18,15 @@
- #include "llvm/IR/Module.h"
- #include "llvm/Pass.h"
- 
-+#undef fopen64
-+#undef fseeko64
-+#undef fstat64
-+#undef fstatvfs64
-+#undef ftello64
-+#undef lstat64
-+#undef stat64
-+#undef tmpfile64
-+
- namespace llvm {
- /// VecDesc - Describes a possible vectorization of a function.
- /// Function 'VectorFnName' is equivalent to 'ScalarFnName' vectorized
-- 
-2.7.3
-
--- a/llvm/aarch64.patch
+++ b/llvm/aarch64.patch
@ -1,51 +0,0 @@
--- lib/Support/Unix/Memory.inc
-+++ lib/Support/Unix/Memory.inc
-@@ -126,8 +126,12 @@
-   Result.Address = Addr;
-   Result.Size = NumPages*PageSize;
- 
-  if (PFlags & MF_EXEC)
-    Memory::InvalidateInstructionCache(Result.Address, Result.Size);
-+  // Rely on protectMappedMemory to invalidate instruction cache.
-+  if (PFlags & MF_EXEC) {
-+    EC = Memory::protectMappedMemory (Result, PFlags);
-+    if (EC != std::error_code())
-+      return MemoryBlock();
-+  }
- 
-   return Result;
- }
-@@ -156,15 +160,31 @@
-     return std::error_code(EINVAL, std::generic_category());
- 
-   int Protect = getPosixProtectionFlags(Flags);
-
-   uintptr_t Start = alignAddr((uint8_t *)M.Address - PageSize + 1, PageSize);
-   uintptr_t End = alignAddr((uint8_t *)M.Address + M.Size, PageSize);
-+
-+  bool InvalidateCache = (Flags & MF_EXEC);
-+
-+#if defined(__arm__) || defined(__aarch64__)
-+  // Certain ARM implementations treat icache clear instruction as a memory read,
-+  // and CPU segfaults on trying to clear cache on !PROT_READ page.  Therefore we need
-+  // to temporarily add PROT_READ for the sake of flushing the instruction caches.
-+  if (InvalidateCache && !(Protect & PROT_READ)) {
-+    int Result = ::mprotect((void *)Start, End - Start, Protect | PROT_READ);
-+    if (Result != 0)
-+      return std::error_code(errno, std::generic_category());
-+
-+    Memory::InvalidateInstructionCache(M.Address, M.Size);
-+    InvalidateCache = false;
-+  }
-+#endif
-+
-   int Result = ::mprotect((void *)Start, End - Start, Protect);
- 
-   if (Result != 0)
-     return std::error_code(errno, std::generic_category());
- 
-  if (Flags & MF_EXEC)
-+  if (InvalidateCache)
-     Memory::InvalidateInstructionCache(M.Address, M.Size);
- 
-   return std::error_code();
--- a/llvm/clang-11-12-LLVMgold-path.patch
+++ b/llvm/clang-11-12-LLVMgold-path.patch
@ -1,13 +0,0 @@
-diff --git a/lib/Driver/ToolChains/CommonArgs.cpp b/lib/Driver/ToolChains/CommonArgs.cpp
-index 6b6e276b8ce7..7896542a1202 100644
--- a/lib/Driver/ToolChains/CommonArgs.cpp
-+++ b/lib/Driver/ToolChains/CommonArgs.cpp
-@@ -409,7 +409,7 @@ void tools::addLTOOptions(const ToolChain &ToolChain, const ArgList &Args,
- 
-     SmallString<1024> Plugin;
-     llvm::sys::path::native(
-        Twine(D.Dir) + "/../lib" CLANG_LIBDIR_SUFFIX "/LLVMgold" + Suffix,
-+        Twine("@libllvmLibdir@" "/LLVMgold") + Suffix,
-         Plugin);
-     CmdArgs.push_back(Args.MakeArgString(Plugin));
-   }
--- a/llvm/clang-6-10-LLVMgold-path.patch
+++ b/llvm/clang-6-10-LLVMgold-path.patch
@ -1,15 +0,0 @@
-diff --git a/lib/Driver/ToolChains/CommonArgs.cpp b/lib/Driver/ToolChains/CommonArgs.cpp
-index 37ec73468570..b73e75aa6e59 100644
--- a/lib/Driver/ToolChains/CommonArgs.cpp
-+++ b/lib/Driver/ToolChains/CommonArgs.cpp
-@@ -370,8 +370,8 @@ void tools::AddGoldPlugin(const ToolChain &ToolChain, const ArgList &Args,
- #endif
- 
-   SmallString<1024> Plugin;
-  llvm::sys::path::native(Twine(ToolChain.getDriver().Dir) +
-                              "/../lib" CLANG_LIBDIR_SUFFIX "/LLVMgold" +
-+  llvm::sys::path::native(Twine("@libllvmLibdir@"
-+                                "/LLVMgold") +
-                               Suffix,
-                           Plugin);
-   CmdArgs.push_back(Args.MakeArgString(Plugin));
--- a/llvm/common/bintools.nix
+++ b/llvm/common/bintools.nix
@ -1,48 +0,0 @@
-{ lib, runCommand, stdenv, llvm, lld, version, release_version }:
-
-let
-  targetPrefix = lib.optionalString (stdenv.hostPlatform != stdenv.targetPlatform) "${stdenv.targetPlatform.config}-";
-in
-runCommand "llvm-binutils-${version}"
-{
-  preferLocalBuild = true;
-  passthru = {
-    isLLVM = true;
-  };
-}
-  (''
-    mkdir -p $out/bin
-    for prog in ${lld}/bin/*; do
-      ln -s $prog $out/bin/${targetPrefix}$(basename $prog)
-    done
-    for prog in ${llvm}/bin/*; do
-      ln -sf $prog $out/bin/${targetPrefix}$(basename $prog)
-    done
-
-    llvmBin="${llvm}/bin"
-
-    ln -s $llvmBin/llvm-ar $out/bin/${targetPrefix}ar
-    ln -s $llvmBin/llvm-ar $out/bin/${targetPrefix}dlltool
-    ln -s $llvmBin/llvm-ar $out/bin/${targetPrefix}ranlib
-    ln -s $llvmBin/llvm-cxxfilt $out/bin/${targetPrefix}c++filt
-    ln -s $llvmBin/llvm-dwp $out/bin/${targetPrefix}dwp
-    ln -s $llvmBin/llvm-nm $out/bin/${targetPrefix}nm
-    ln -s $llvmBin/llvm-objcopy $out/bin/${targetPrefix}objcopy
-    ln -s $llvmBin/llvm-objcopy $out/bin/${targetPrefix}strip
-    ln -s $llvmBin/llvm-objdump $out/bin/${targetPrefix}objdump
-    ln -s $llvmBin/llvm-readobj $out/bin/${targetPrefix}readelf
-    ln -s $llvmBin/llvm-size $out/bin/${targetPrefix}size
-    ln -s $llvmBin/llvm-strings $out/bin/${targetPrefix}strings
-    ln -s $llvmBin/llvm-symbolizer $out/bin/${targetPrefix}addr2line
-
-    if [ -e "$llvmBin/llvm-debuginfod" ]; then
-      ln -s $llvmBin/llvm-debuginfod $out/bin/${targetPrefix}debuginfod
-      ln -s $llvmBin/llvm-debuginfod-find $out/bin/${targetPrefix}debuginfod-find
-    fi
-
-    ln -s ${lld}/bin/lld $out/bin/${targetPrefix}ld
-
-    # Only >=13 show GNU windres compatible in help
-  '' + lib.optionalString (lib.versionAtLeast release_version "13") ''
-    ln -s $llvmBin/llvm-rc $out/bin/${targetPrefix}windres
-  '')
--- a/llvm/common/clang/5-8-purity.patch
+++ b/llvm/common/clang/5-8-purity.patch
@ -1,30 +0,0 @@
-From 4add81bba40dcec62c4ea4481be8e35ac53e89d8 Mon Sep 17 00:00:00 2001
-From: Will Dietz <w@wdtz.org>
-Date: Thu, 18 May 2017 11:56:12 -0500
-Subject: [PATCH] "purity" patch for 5.0
-
---
- lib/Driver/ToolChains/Gnu.cpp | 7 -------
- 1 file changed, 7 deletions(-)
-
-diff --git a/lib/Driver/ToolChains/Gnu.cpp b/lib/Driver/ToolChains/Gnu.cpp
-index fe3c0191bb..c6a482bece 100644
--- a/lib/Driver/ToolChains/Gnu.cpp
-+++ b/lib/Driver/ToolChains/Gnu.cpp
-@@ -494,13 +494,6 @@ void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
-   if (!Args.hasArg(options::OPT_static)) {
-     if (Args.hasArg(options::OPT_rdynamic))
-       CmdArgs.push_back("-export-dynamic");
-
-    if (!Args.hasArg(options::OPT_shared)) {
-      const std::string Loader =
-          D.DyldPrefix + ToolChain.getDynamicLinker(Args);
-      CmdArgs.push_back("-dynamic-linker");
-      CmdArgs.push_back(Args.MakeArgString(Loader));
-    }
-   }
- 
-   CmdArgs.push_back("-o");
-- 
-2.11.0
-
--- a/llvm/common/clang/add-nostdlibinc-flag.patch
+++ b/llvm/common/clang/add-nostdlibinc-flag.patch
@ -1,18 +0,0 @@
-diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
-index 3f29afd35971..223d2769cdfc 100644
--- a/lib/Driver/Driver.cpp
-+++ b/lib/Driver/Driver.cpp
-@@ -491,6 +491,13 @@ DerivedArgList *Driver::TranslateInputArgs(const InputArgList &Args) const {
-   }
- #endif
- 
-+  {
-+    Arg *A = DAL->MakeFlagArg(/*BaseArg=*/nullptr,
-+                              Opts.getOption(options::OPT_nostdlibinc));
-+    A->claim();
-+    DAL->append(A);
-+  }
-+
-   return DAL;
- }
- 
--- a/llvm/common/lldb.nix
+++ b/llvm/common/lldb.nix
@ -1,196 +0,0 @@
-{ lib
-, stdenv
-, llvm_meta
-, release_version
-, cmake
-, zlib
-, ncurses
-, swig
-, which
-, libedit
-, libxml2
-, libllvm
-, libclang
-, python3
-, version
-, darwin
-, lit
-, makeWrapper
-, lua5_3
-, ninja
-, runCommand
-, src ? null
-, monorepoSrc ? null
-, patches ? [ ]
-, enableManpages ? false
-}:
-
-let
-  src' =
-    if monorepoSrc != null then
-      runCommand "lldb-src-${version}" { } ''
-        mkdir -p "$out"
-        cp -r ${monorepoSrc}/cmake "$out"
-        cp -r ${monorepoSrc}/lldb "$out"
-      '' else src;
-in
-
-stdenv.mkDerivation (rec {
-  passthru.monorepoSrc = monorepoSrc;
-  pname = "lldb";
-  inherit version;
-
-  src = src';
-  inherit patches;
-
-  outputs = [ "out" "lib" "dev" ];
-
-  sourceRoot = lib.optional (lib.versionAtLeast release_version "13") "${src.name}/${pname}";
-
-  nativeBuildInputs = [
-    cmake
-    python3
-    which
-    swig
-    lit
-    makeWrapper
-    lua5_3
-  ] ++ lib.optionals enableManpages [
-    python3.pkgs.sphinx
-    python3.pkgs.recommonmark
-  ] ++ lib.optionals (lib.versionAtLeast release_version "14") [
-    ninja
-  ];
-
-  buildInputs = [
-    ncurses
-    zlib
-    libedit
-    libxml2
-    libllvm
-  ] ++ lib.optionals stdenv.isDarwin [
-    darwin.libobjc
-    darwin.apple_sdk.libs.xpc
-    darwin.apple_sdk.frameworks.Foundation
-    darwin.bootstrap_cmds
-    darwin.apple_sdk.frameworks.Carbon
-    darwin.apple_sdk.frameworks.Cocoa
-  ]
-  # The older libSystem used on x86_64 macOS is missing the
-  # `<bsm/audit_session.h>` header which `lldb` uses.
-  #
-  # We copy this header over from macOS 10.12 SDK.
-  #
-  # See here for context:
-  # https://github.com/NixOS/nixpkgs/pull/194634#issuecomment-1272129132
-  ++ lib.optional
-    (
-      stdenv.targetPlatform.isDarwin
-        && !stdenv.targetPlatform.isAarch64
-        && (lib.versionAtLeast release_version "15")
-    )
-    (
-      runCommand "bsm-audit-session-header" { } ''
-        install -Dm444 \
-          "${lib.getDev darwin.apple_sdk.sdk}/include/bsm/audit_session.h" \
-          "$out/include/bsm/audit_session.h"
-      ''
-    );
-
-  hardeningDisable = [ "format" ];
-
-  cmakeFlags = [
-    "-DLLDB_INCLUDE_TESTS=${if doCheck then "YES" else "NO"}"
-    "-DLLVM_ENABLE_RTTI=OFF"
-    "-DClang_DIR=${lib.getDev libclang}/lib/cmake"
-    "-DLLVM_EXTERNAL_LIT=${lit}/bin/lit"
-  ] ++ lib.optionals stdenv.isDarwin [
-    "-DLLDB_USE_SYSTEM_DEBUGSERVER=ON"
-  ] ++ lib.optionals (!stdenv.isDarwin) [
-    "-DLLDB_CODESIGN_IDENTITY=" # codesigning makes nondeterministic
-  ] ++ lib.optionals enableManpages ([
-    "-DLLVM_ENABLE_SPHINX=ON"
-    "-DSPHINX_OUTPUT_MAN=ON"
-    "-DSPHINX_OUTPUT_HTML=OFF"
-  ] ++ lib.optionals (lib.versionAtLeast release_version "15") [
-    # docs reference `automodapi` but it's not added to the extensions list when
-    # only building the manpages:
-    # https://github.com/llvm/llvm-project/blob/af6ec9200b09039573d85e349496c4f5b17c3d7f/lldb/docs/conf.py#L54
-    #
-    # so, we just ignore the resulting errors
-    "-DSPHINX_WARNINGS_AS_ERRORS=OFF"
-  ]) ++ lib.optionals doCheck [
-    "-DLLDB_TEST_C_COMPILER=${stdenv.cc}/bin/${stdenv.cc.targetPrefix}cc"
-    "-DLLDB_TEST_CXX_COMPILER=${stdenv.cc}/bin/${stdenv.cc.targetPrefix}c++"
-  ];
-
-  doCheck = false;
-  doInstallCheck = lib.versionOlder release_version "15";
-
-  # TODO: cleanup with mass-rebuild
-  installCheckPhase = ''
-    if [ ! -e $lib/${python3.sitePackages}/lldb/_lldb*.so ] ; then
-        echo "ERROR: python files not installed where expected!";
-        return 1;
-    fi
-  '' # Something lua is built on older versions but this file doesn't exist.
-  + lib.optionalString (lib.versionAtLeast release_version "14") ''
-    if [ ! -e "$lib/lib/lua/${lua5_3.luaversion}/lldb.so" ] ; then
-        echo "ERROR: lua files not installed where expected!";
-        return 1;
-    fi
-  '';
-
-  postInstall = ''
-    wrapProgram $out/bin/lldb --prefix PYTHONPATH : $lib/${python3.sitePackages}/
-
-    # Editor support
-    # vscode:
-    install -D ../tools/lldb-vscode/package.json $out/share/vscode/extensions/llvm-org.lldb-vscode-0.1.0/package.json
-    mkdir -p $out/share/vscode/extensions/llvm-org.lldb-vscode-0.1.0/bin
-    ln -s $out/bin/*-vscode $out/share/vscode/extensions/llvm-org.lldb-vscode-0.1.0/bin
-  '';
-
-  meta = llvm_meta // {
-    homepage = "https://lldb.llvm.org/";
-    description = "A next-generation high-performance debugger";
-    longDescription = ''
-      LLDB is a next generation, high-performance debugger. It is built as a set
-      of reusable components which highly leverage existing libraries in the
-      larger LLVM Project, such as the Clang expression parser and LLVM
-      disassembler.
-    '';
-    # llvm <10 never built on aarch64-darwin since first introduction in nixpkgs
-    broken =
-      (lib.versionOlder release_version "11" && stdenv.isDarwin && stdenv.isAarch64)
-        || (((lib.versions.major release_version) == "13") && stdenv.isDarwin);
-  };
-} // lib.optionalAttrs enableManpages {
-  pname = "lldb-manpages";
-
-  buildPhase = lib.optionalString (lib.versionOlder release_version "15") ''
-    make ${if (lib.versionOlder release_version "12") then "docs-man" else "docs-lldb-man"}
-  '';
-
-
-  ninjaFlags = lib.optionals (lib.versionAtLeast release_version "15") [ "docs-lldb-man" ];
-
-  propagatedBuildInputs = [ ];
-
-  # manually install lldb man page
-  installPhase = ''
-    mkdir -p $out/share/man/man1
-    install docs/man/lldb.1 -t $out/share/man/man1/
-  '';
-
-  postPatch = null;
-  postInstall = null;
-
-  outputs = [ "out" ];
-
-  doCheck = false;
-
-  meta = llvm_meta // {
-    description = "man pages for LLDB ${version}";
-  };
-})
--- a/llvm/exegesis-force-bdver2.patch
+++ b/llvm/exegesis-force-bdver2.patch
@ -1,11 +0,0 @@
-diff --git a/test/tools/llvm-exegesis/X86/uops-CMOV16rm-noreg.s b/test/tools/llvm-exegesis/X86/uops-CMOV16rm-noreg.s
-index 3fc1f31d54dc..a4c9bdd92131 100644
--- a/test/tools/llvm-exegesis/X86/uops-CMOV16rm-noreg.s
-+++ b/test/tools/llvm-exegesis/X86/uops-CMOV16rm-noreg.s
-@@ -1,5 +1,6 @@
- # RUN: llvm-exegesis -mode=uops -opcode-name=CMOV16rm  -benchmarks-file=%t.CMOV16rm-uops.yaml
- # RUN: FileCheck -check-prefixes=CHECK-YAML -input-file=%t.CMOV16rm-uops.yaml %s
-+# RUN: sed -i 's,cpu_name:.*,cpu_name: bdver2,g' %t.CMOV16rm-uops.yaml
- # RUN: llvm-exegesis -mcpu=bdver2 -mode=analysis -benchmarks-file=%t.CMOV16rm-uops.yaml -analysis-clusters-output-file=- -analysis-clustering-epsilon=0.1 -analysis-inconsistency-epsilon=0.1 -analysis-numpoints=1 -analysis-clustering=naive | FileCheck -check-prefixes=CHECK-CLUSTERS %s
- 
- # https://bugs.llvm.org/show_bug.cgi?id=41448
--- a/llvm/libcxx-0001-musl-hacks.patch
+++ b/llvm/libcxx-0001-musl-hacks.patch
@ -1,39 +0,0 @@
-From 1c936d7fda3275265e37f93697232a1ed652390f Mon Sep 17 00:00:00 2001
-From: Will Dietz <w@wdtz.org>
-Date: Sat, 9 Jul 2016 19:22:54 -0500
-Subject: [PATCH] musl fixes/hacks
-
-Conflicts:
-
-	include/__config
-	include/locale
-	src/locale.cpp
---
- include/locale |    4 ++--
- 1 files changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/include/locale b/include/locale
-index 3d804e8..9b01f5b 100644
--- a/include/locale
-+++ b/include/locale
-@@ -695,7 +695,7 @@ __num_get_signed_integral(const char* __a, const char* __a_end,
-         typename remove_reference<decltype(errno)>::type __save_errno = errno;
-         errno = 0;
-         char *__p2;
-        long long __ll = strtoll_l(__a, &__p2, __base, _LIBCPP_GET_C_LOCALE);
-+        long long __ll = strtoll(__a, &__p2, __base);
-         typename remove_reference<decltype(errno)>::type __current_errno = errno;
-         if (__current_errno == 0)
-             errno = __save_errno;
-@@ -735,7 +735,7 @@ __num_get_unsigned_integral(const char* __a, const char* __a_end,
-         typename remove_reference<decltype(errno)>::type __save_errno = errno;
-         errno = 0;
-         char *__p2;
-        unsigned long long __ll = strtoull_l(__a, &__p2, __base, _LIBCPP_GET_C_LOCALE);
-+        unsigned long long __ll = strtoull(__a, &__p2, __base);
-         typename remove_reference<decltype(errno)>::type __current_errno = errno;
-         if (__current_errno == 0)
-             errno = __save_errno;
-- 
-1.7.1
-
--- a/llvm/llvm-7-musl.patch
+++ b/llvm/llvm-7-musl.patch
@ -1,92 +0,0 @@
-From 8c747d3157df2830eed9205e7caf1203b345de17 Mon Sep 17 00:00:00 2001
-From: Khem Raj <raj.khem@gmail.com>
-Date: Sat, 4 Feb 2023 13:54:41 -0800
-Subject: [PATCH] cmake: Enable 64bit off_t on 32bit glibc systems
-
-Pass -D_FILE_OFFSET_BITS=64 to compiler flags on 32bit glibc based
-systems. This will make sure that 64bit versions of LFS functions are
-used e.g. seek will behave same as lseek64. Also revert [1] partially
-because this added a cmake test to detect lseek64 but then forgot to
-pass the needed macro to actual compile, this test was incomplete too
-since libc implementations like musl has 64bit off_t by default on 32bit
-systems and does not bundle[2] -D_LARGEFILE64_SOURCE under -D_GNU_SOURCE
-like glibc, which means the compile now fails on musl because the cmake
-check passes but we do not have _LARGEFILE64_SOURCE defined. Using the
-*64 function was transitional anyways so use -D_FILE_OFFSET_BITS=64
-instead
-
-[1] https://github.com/llvm/llvm-project/commit/8db7e5e4eed4c4e697dc3164f2c9351d8c3e942b
-[2] https://git.musl-libc.org/cgit/musl/commit/?id=25e6fee27f4a293728dd15b659170e7b9c7db9bc
-
-Reviewed By: MaskRay
-
-Differential Revision: https://reviews.llvm.org/D139752
-
-(cherry picked from commit 5cd554303ead0f8891eee3cd6d25cb07f5a7bf67)
---
- cmake/config-ix.cmake              | 13 ++++++++++---
- include/llvm/Config/config.h.cmake |  3 ---
- lib/Support/raw_ostream.cpp        |  2 --
- 3 files changed, 10 insertions(+), 8 deletions(-)
-
-diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake
-index 18977d9950ff..b558aa83fa62 100644
--- a/cmake/config-ix.cmake
-+++ b/cmake/config-ix.cmake
-@@ -197,9 +197,6 @@ check_symbol_exists(posix_fallocate fcntl.h HAVE_POSIX_FALLOCATE)
- if( HAVE_SIGNAL_H AND NOT LLVM_USE_SANITIZER MATCHES ".*Address.*" AND NOT APPLE )
-   check_symbol_exists(sigaltstack signal.h HAVE_SIGALTSTACK)
- endif()
-set(CMAKE_REQUIRED_DEFINITIONS "-D_LARGEFILE64_SOURCE")
-check_symbol_exists(lseek64 "sys/types.h;unistd.h" HAVE_LSEEK64)
-set(CMAKE_REQUIRED_DEFINITIONS "")
- check_symbol_exists(mallctl malloc_np.h HAVE_MALLCTL)
- check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO)
- check_symbol_exists(malloc_zone_statistics malloc/malloc.h
-@@ -237,6 +234,16 @@ if( PURE_WINDOWS )
-   check_function_exists(__main HAVE___MAIN)
-   check_function_exists(__cmpdi2 HAVE___CMPDI2)
- endif()
-+
-+check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC)
-+if( LLVM_USING_GLIBC )
-+# enable 64bit off_t on 32bit systems using glibc
-+  if (CMAKE_SIZEOF_VOID_P EQUAL 4)
-+    add_compile_definitions(_FILE_OFFSET_BITS=64)
-+    list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_FILE_OFFSET_BITS=64")
-+  endif()
-+endif()
-+
- if( HAVE_DLFCN_H )
-   if( HAVE_LIBDL )
-     list(APPEND CMAKE_REQUIRED_LIBRARIES dl)
-diff --git a/include/llvm/Config/config.h.cmake b/include/llvm/Config/config.h.cmake
-index e934617d7ec7..3c39c373b3c1 100644
--- a/include/llvm/Config/config.h.cmake
-+++ b/include/llvm/Config/config.h.cmake
-@@ -112,9 +112,6 @@
- /* Define to 1 if you have the <link.h> header file. */
- #cmakedefine HAVE_LINK_H ${HAVE_LINK_H}
- 
-/* Define to 1 if you have the `lseek64' function. */
-#cmakedefine HAVE_LSEEK64 ${HAVE_LSEEK64}
-
- /* Define to 1 if you have the <mach/mach.h> header file. */
- #cmakedefine HAVE_MACH_MACH_H ${HAVE_MACH_MACH_H}
- 
-diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
-index 038ad00bd608..921ab8409008 100644
--- a/lib/Support/raw_ostream.cpp
-+++ b/lib/Support/raw_ostream.cpp
-@@ -677,8 +677,6 @@ uint64_t raw_fd_ostream::seek(uint64_t off) {
-   flush();
- #ifdef _WIN32
-   pos = ::_lseeki64(FD, off, SEEK_SET);
-#elif defined(HAVE_LSEEK64)
-  pos = ::lseek64(FD, off, SEEK_SET);
- #else
-   pos = ::lseek(FD, off, SEEK_SET);
- #endif
-- 
-2.37.1
-
--- a/llvm/llvm-config-link-static.patch
+++ b/llvm/llvm-config-link-static.patch
@ -1,12 +0,0 @@
-diff --git llvm/tools/llvm-config/CMakeLists.txt llvm/tools/llvm-config/CMakeLists.txt
-index 16ba54c0cf2f..20b017195e84 100644
--- llvm/tools/llvm-config/CMakeLists.txt
-+++ llvm/tools/llvm-config/CMakeLists.txt
-@@ -6,6 +6,7 @@ set(BUILDVARIABLES_OBJPATH ${CMAKE_CURRENT_BINARY_DIR}/BuildVariables.inc)
- # Add the llvm-config tool.
- add_llvm_tool(llvm-config
-   llvm-config.cpp
-+  DISABLE_LLVM_LINK_LLVM_DYLIB
-   )
- 
- # Compute the substitution values for various items.
--- a/llvm/multi.nix
+++ b/llvm/multi.nix
@ -1,60 +0,0 @@
-{ runCommand,
-clang,
-gcc64,
-gcc32,
-glibc_multi
-}:
-
-let
-  combine = basegcc: runCommand "combine-gcc-libc" {} ''
-    mkdir -p $out
-    cp -r ${basegcc.cc}/lib $out/lib
-
-    chmod u+rw -R $out/lib
-    cp -r ${basegcc.libc}/lib/* $(ls -d $out/lib/gcc/*/*)
-  '';
-  gcc_multi_sysroot = runCommand "gcc-multi-sysroot" {
-    passthru = {
-      inherit (gcc64) version;
-      lib = gcc_multi_sysroot;
-    };
-  } ''
-    mkdir -p $out/lib{,64}/gcc
-
-    ln -s ${combine gcc64}/lib/gcc/* $out/lib64/gcc/
-    ln -s ${combine gcc32}/lib/gcc/* $out/lib/gcc/
-    # XXX: This shouldn't be needed, clang just doesn't look for "i686-unknown"
-    ln -s $out/lib/gcc/i686-unknown-linux-gnu $out/lib/gcc/i686-pc-linux-gnu
-
-
-    # includes
-    mkdir -p $out/include
-    ln -s ${glibc_multi.dev}/include/* $out/include
-    ln -s ${gcc64.cc}/include/c++ $out/include/c++
-
-    # dynamic linkers
-    mkdir -p $out/lib/32
-    ln -s ${glibc_multi.out}/lib/ld-linux* $out/lib
-    ln -s ${glibc_multi.out}/lib/32/ld-linux* $out/lib/32/
-  '';
-
-  clangMulti = clang.override {
-    # Only used for providing expected structure re:dynamic linkers, AFAIK Most
-    # of the magic is done by setting the --gcc-toolchain option via
-    # `gccForLibs`.
-    libc = gcc_multi_sysroot;
-
-    bintools = clang.bintools.override {
-      libc = gcc_multi_sysroot;
-    };
-
-    gccForLibs = gcc_multi_sysroot // {
-      inherit (glibc_multi) libgcc;
-      langCC =
-        assert (gcc64.cc.langCC != gcc32.cc.langCC)
-               -> throw "(gcc64.cc.langCC=${gcc64.cc.langCC}) != (gcc32.cc.langCC=${gcc32.cc.langCC})";
-        gcc64.cc.langCC;
-    };
-  };
-
-in clangMulti
--- a/szl/Cargo.toml
+++ b/szl/Cargo.toml
@ -16,10 +16,14 @@ default = ["target_zc706"]
 [dependencies]
 log = "0.4"
 byteorder = { version = "1.3", default-features = false }
-core_io = { version = "0.1", features = ["collections"] }
-
 libboard_zynq = { path = "../libboard_zynq" }
 libsupport_zynq = { path = "../libsupport_zynq" }
 libcortex_a9 = { path = "../libcortex_a9" }
 libregister = { path = "../libregister" }
 libconfig = { path = "../libconfig" }
+
+[dependencies.core_io]
+git = "https://git.m-labs.hk/M-Labs/rs-core_io.git"
+rev = "e9d3edf027"
+features = ["collections"]
+