Squashed commit of the following:

commit 8bd3f45
Author: João Matos <[email protected]>
Date:   Tue Feb 6 18:30:12 2024 +0000

    Update llvm.yml to install AArch64 cross compilers

commit a81abd5
Author: Conrad Kreyling <[email protected]>
Date:   Tue Feb 6 11:29:07 2024 -0500

    LLVM crosscompile x64 for ARM64 (mono#1826)

    * LLVM crosscompile x64 for ARM64

    * Fix MacOS host platform test

    * Ensure options is persistent in cross compile paths

commit 1d1b21f
Author: Conrad Kreyling <[email protected]>
Date:   Fri Feb 2 15:12:42 2024 -0500

    Instruct generator to build ARM64 bindings

commit 491248b
Author: Conrad Kreyling <[email protected]>
Date:   Fri Feb 2 15:09:44 2024 -0500

    Fix missing AArch64 entry in CLI CppAbi

commit bbb0693
Author: Conrad Kreyling <[email protected]>
Date:   Fri Feb 2 13:35:11 2024 -0500

    Enable ARM64 support on LLVM builds

commit b5ab95e
Author: Joao Matos <[email protected]>
Date:   Thu Feb 1 11:39:24 2024 +0000

    Update iOS64 ABI name to the more accurate AppleARM64.

commit d1307a5
Author: Joao Matos <[email protected]>
Date:   Thu Feb 1 11:21:52 2024 +0000

    Add support for AArch64 C++ ABI.

commit 9071cd2
Author: deadlocklogic <[email protected]>
Date:   Sun Dec 17 17:03:24 2023 +0200

    Implement ClassTemplatePartialSpecialization::Parameters (mono#1809)

    * Implement ClassTemplatePartialSpecialization::Parameters

    * Template.cs: Implement ClassTemplatePartialSpecialization.Parameters

    * GeneratorKind: fix bug introduced while migrating from enum to class

    * Implement native ClassTemplatePartialSpecialization.Parameters + ASTConverter

    * regenerated bindings (mono#1813)

    * regenerated bindings

    * regenerated bindings after rebase

    * Directory.Build.props: support C# 10.0

    * Implement native ClassTemplatePartialSpecialization.Parameters + ASTConverter

    * Regenerated bindings

    * TestAST.cs: add TestASTClassTemplatePartialSpecialization

commit 2ecd952
Author: deadlocklogic <[email protected]>
Date:   Sun Dec 17 13:08:34 2023 +0200

    regenerated bindings (mono#1813)

    * regenerated bindings

    * regenerated bindings after rebase

    * Directory.Build.props: support C# 10.0

commit 24d1a84
Author: deadlocklogic <[email protected]>
Date:   Sun Dec 17 11:44:00 2023 +0200

    Stdlib.CSharp.cs: remove buggy typemap (mono#1812)

commit 1327971
Author: deadlocklogic <[email protected]>
Date:   Sat Dec 16 21:36:04 2023 +0200

    GeneratorKind: patch bug caused by missing ToString (mono#1811)

commit 519e97f
Author: Joao Matos <[email protected]>
Date:   Tue Dec 12 15:30:14 2023 +0000

    Remove 32-bit builds and non-debug symbols release builds from LLVM Windows CI.

commit 1211272
Author: deadlocklogic <[email protected]>
Date:   Tue Dec 12 17:25:12 2023 +0200

    Build llvm `Debug`/`Release` for `Windows`. (mono#1800)

    * Update llvm-win.yml

    * Update llvm-win.yml

    * Update llvm-win.yml

commit 12c267d
Author: zylalx1 <[email protected]>
Date:   Fri Dec 8 03:58:10 2023 +0800

    Fixed a bug causing the header file to be included twice when Options.GenerateName is not null (mono#1803)

commit e068f2a
Author: deadlocklogic <[email protected]>
Date:   Thu Dec 7 16:35:02 2023 +0200

    Typemap cleanup (mono#1802)

    * TypeMap: prepare refactoring into a modular design

    * TypeMap: refactor C++ backend into common methods

    * TypeMap: refactor CLI backend into common methods

    * CLI.Gen.cs: fix omitted typemap from previous commit

    * Common.Gen.cs: fixed silly modification while testing

    * GeneratorKind: add FindGeneratorKindByID method

    * TypeMapDatabase: heavy refactor: group typemaps by GeneratorKind

    * TypeMap: refactor CSharp backend into common methods + migration

    * TypeMap: cleanup patches from previous commits

    * TypeMapDatabase: fix passing GeneratorKind to FindTypeMap calls

    * Stdlib.CSharp.cs: move std::map typemap from Stdlib.CLI.cs

    * TypeMapDatabase: improve parameter name

commit 8c2da6d
Author: deadlocklogic <[email protected]>
Date:   Mon Nov 13 22:00:41 2023 +0200

    Major refactor: TypePrinter: improve modular design + cleanup (mono#1796)

commit 0edd48c
Author: deadlocklogic <[email protected]>
Date:   Mon Nov 13 20:15:24 2023 +0200

    Major refactoring: refactor GeneratorKind enum into a class (mono#1794)

    * Major refactoring: refactor GeneratorKind enum into a class

    * Minor fix: add readonly

    * Add Type property for GenerationKind + cleanup

    * GeneratorKind: add Name property + refactor hardcoded names

    * GeneratorKind: add CLIOptions property + refactor hardcoded options

    * CppSharp.CLI: minor fix: use generator.ToLower()

    * GeneratorKind: fix warning

commit 40f3a09
Author: deadlocklogic <[email protected]>
Date:   Sat Nov 11 16:51:18 2023 +0200

    Minor improvements (mono#1793)

    * CppSharp.Generators.Options: added pre/post TranslationUnitPass callback

    * CppSharp.Generators.Passes.Pass: added TranslationUnitPassGeneratorDependent

commit b14038a
Author: Stefan <[email protected]>
Date:   Mon Oct 23 14:23:51 2023 +0200

    Value types may generate `Dispose` (mono#1787)

commit 3b2a15d
Author: João Matos <[email protected]>
Date:   Sat Oct 21 19:33:13 2023 +0100

    Update README.md

commit a5afda8
Author: Stefan <[email protected]>
Date:   Fri Oct 20 21:00:04 2023 +0200

    Fix parameterless constructors not being generated for structs (mono#1783)

    * Fix parameterless constructors not being generated for structs

    * Fix implicit non-trivial default ctor

    * Adjust `Ignore` linked issue

commit b16e809
Author: Stefan <[email protected]>
Date:   Fri Oct 20 18:54:58 2023 +0200

    Introduce `GenerateFreeStandingFunctionsClassName` option (mono#1782)

    * Introduce `GenerateFreeStandingFunctionsClassName` option

    * Support CLI and fixes

commit 03874e7
Author: Stefan <[email protected]>
Date:   Thu Oct 19 17:24:55 2023 +0200

    Fix Value Type String Member Invalid Codegen (mono#1778)

    * Fix code generation

    * Generate exception on broken struct set op

    * Remove redundant usings

commit adffc99
Author: Salvage <[email protected]>
Date:   Thu Oct 19 14:51:06 2023 +0200

    Fix erroneous newline

commit b4f261e
Author: Salvage <[email protected]>
Date:   Thu Oct 19 14:26:00 2023 +0200

    Simplify `IsTemplateParameterType`

commit 28000a1
Author: Salvage <[email protected]>
Date:   Thu Oct 19 01:19:07 2023 +0200

    Fix mono#1251 three parameter equality operator

    - Operators in generic classes do not attempt to generate as extension methods anymore
    - Empty `...Extensions` classes are no longer generated
    - `string` as a template argument is correctly cast
    - `MarshalCharAsManagedChar` option also generates correct casts
    - Suppress warning regarding returning struct field by ref
    - Eliminate some tabs that snuck into the test C++ header

commit d7faf5f
Author: Joao Matos <[email protected]>
Date:   Wed Oct 18 17:39:49 2023 +0100

    Fix SDL_PollEvent generation in the SDL example.

    Fixes mono#978.

    Thanks to @Saalvage.

commit 7f567b6
Author: Salvage <[email protected]>
Date:   Wed Oct 18 18:26:03 2023 +0200

    Fix non-void returning functions with value-type out parameters

    Also fixes indentation

commit 0c60384
Author: Salvage <[email protected]>
Date:   Wed Oct 18 16:49:41 2023 +0200

    Additional bump

commit 0534e33
Author: Salvage <[email protected]>
Date:   Wed Oct 18 16:35:10 2023 +0200

    Bump GH actions versions to solve warnings

commit a6ef9d9
Author: Salvage <[email protected]>
Date:   Wed Oct 18 16:19:42 2023 +0200

    Fix source dir

commit 7e6c492
Author: Salvage <[email protected]>
Date:   Wed Oct 18 16:08:51 2023 +0200

    Test fix broken packages

commit 2a351b7
Author: Joao Matos <[email protected]>
Date:   Wed Oct 18 16:03:36 2023 +0100

    Update our version to 1.1.

commit 20950c5
Author: Salvage <[email protected]>
Date:   Wed Oct 18 04:58:38 2023 +0200

    More stringent test; Fix indentation (of the code itself, not in the generator)

commit ebe6b8a
Author: Salvage <[email protected]>
Date:   Wed Oct 18 04:47:13 2023 +0200

    Fix value type out parameters

Author: JordanL8

.github/workflows/llvm.yml

@@ -27,6 +27,10 @@ jobs:
       - uses: actions/checkout@v4
       - uses: lukka/get-cmake@latest
 
+      - name: Install cross compilers
+        if: startsWith(matrix.config.os, 'ubuntu') && startsWith(matrix.config.platform, 'arm64')
+        run: sudo apt install -y g++-aarch64-linux-gnu gcc-aarch64-linux-gnu
+
       - name: Clone LLVM
         shell: bash
         run: build/build.sh clone_llvm
@@ -43,4 +47,4 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: llvm
-          path: build/llvm/llvm-*-*.*
+          path: build/llvm/llvm-*-*.*

build/llvm/LLVM.lua

@@ -438,10 +438,44 @@ function build_llvm(llvm_build)
 		local options = os.ishost("macosx") and
 			"-DLLVM_ENABLE_LIBCXX=true" or ""
 		local is32bits = target_architecture() == "x86"
+		local targetIsArm64 = target_architecture() == "arm64"
+
 		if is32bits then
 			options = options .. (is32bits and " -DLLVM_BUILD_32_BITS=true" or "")
 		end
 
+		if targetIsArm64 then
+			if os.host() == "linux" then
+				local host_arch = unix_host_architecture()
+				if host_arch ~= "aarch64" then
+					options = options .. "" 
+						.. ' -DCMAKE_SYSTEM_NAME=Linux'
+						.. ' -DCMAKE_SYSTEM_PROCESSOR=aarch64'
+						.. ' -DCMAKE_C_COMPILER=/usr/bin/aarch64-linux-gnu-gcc'
+						.. ' -DCMAKE_CXX_COMPILER=/usr/bin/aarch64-linux-gnu-g++'
+						.. ' -DCMAKE_ASM_COMPILER=/usr/bin/aarch64-linux-gnu-as'
+						.. ' -DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM=NEVER'
+						.. ' -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY=ONLY'
+						.. ' -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY'
+						.. ' -DCMAKE_FIND_ROOT_PATH_MODE_PACKAGE=ONLY'
+						.. ' ' .. options
+				end
+			end
+			if os.host() == "macosx" then
+				local host_arch = unix_host_architecture()
+				if host_arch ~= "arm64" then
+					options = options .. "" 
+						.. ' -DCMAKE_SYSTEM_NAME=Darwin'
+						.. ' -DCMAKE_SYSTEM_PROCESSOR=arm64'
+						.. ' -DCMAKE_C_COMPILER_TARGET=arm64-apple-darwin21.6.0'
+						.. ' -DCMAKE_CXX_COMPILER_TARGET=arm64-apple-darwin21.6.0'
+						.. ' -DCMAKE_ASM_COMPILER_TARGET=arm64-apple-darwin21.6.0'
+						.. ' ' .. options
+				end
+			end
+		end
+
+
 		cmake("Ninja", conf, llvm_build, options)
 		ninja('"' .. llvm_build .. '"')
 		ninja('"' .. llvm_build .. '"', "clang-headers")

build/scripts/Utils.lua

@@ -112,6 +112,11 @@ function download(url, file, try)
   return res, code
 end
 
+function unix_host_architecture()
+  result, errorCode = os.outputof("uname -m")
+  return result
+end
+
 --
 -- Allows copying directories.
 -- It uses the premake patterns (**=recursive match, *=file match)
@@ -202,4 +207,4 @@ function os.rmfiles(src_dir, filter)
     print( "Error: " .. counter .. "/" .. #matches .. " files removed.")
     return nil
   end
-end
+end