Add ARM cross compile toolchain

Library/Formula/arm-none-eabi-binutils.rb

@@ -0,0 +1,41 @@
+class ArmNoneEabiBinutils < Formula
+  desc "GNU Binutils for arm-none-eabi cross development"
+  homepage "https://www.gnu.org/software/binutils/"
+  url "https://ftp.gnu.org/gnu/binutils/binutils-2.41.tar.bz2"
+  mirror "https://ftpmirror.gnu.org/binutils/binutils-2.41.tar.bz2"
+  sha256 "a4c4bec052f7b8370024e60389e194377f3f48b56618418ea51067f67aaab30b"
+  license "GPL-3.0-or-later"
+
+  bottle do
+  end
+
+  depends_on "pkg-config" => :build
+  depends_on "zlib"
+
+  def install
+    target = "arm-none-eabi"
+    system "./configure", "--target=#{target}",
+           "--prefix=#{prefix}",
+           "--libdir=#{lib}/#{target}",
+           "--infodir=#{info}/#{target}-binutils",
+           "--with-system-zlib",
+           "--disable-nls"
+    system "make"
+    system "make", "install"
+  end
+
+  test do
+    (testpath/"test-s.s").write <<~EOS
+      .section .text
+      .globl _start
+      _start:
+          mov r1, #0
+          mov r2, #1
+          svc #0x80
+    EOS
+    system "#{bin}/arm-none-eabi-as", "-o", "test-s.o", "test-s.s"
+    assert_match "file format elf32-littlearm",
+                 shell_output("#{bin}/arm-none-eabi-objdump -a test-s.o")
+    assert_match "f()", shell_output("#{bin}/arm-none-eabi-c++filt _Z1fv")
+  end
+end

Library/Formula/arm-none-eabi-gcc.rb

@@ -0,0 +1,65 @@
+class ArmNoneEabiGcc < Formula
+  desc "GNU compiler collection for arm-none-eabi"
+  homepage "https://gcc.gnu.org"
+  url "https://ftp.gnu.org/gnu/gcc/gcc-13.2.0/gcc-13.2.0.tar.xz"
+  mirror "https://ftpmirror.gnu.org/gcc/gcc-13.2.0/gcc-13.2.0.tar.xz"
+  sha256 "e275e76442a6067341a27f04c5c6b83d8613144004c0413528863dc6b5c743da"
+  license "GPL-3.0-or-later" => { with: "GCC-exception-3.1" }
+
+  bottle do
+  end
+
+  depends_on "arm-none-eabi-binutils"
+  depends_on "gmp"
+  depends_on "libmpc"
+  depends_on "mpfr"
+  depends_on "zlib"
+  depends_on "ld64" => :build if MacOS.version < :leopard
+  depends_on "texinfo" => :build
+
+  # Need a compiler with C++11 support
+  needs :cxx11
+
+  def install
+    # Build breaks with optimisation enabled.
+    ENV.no_optimization if Hardware::CPU.type == :ppc
+
+    target = "arm-none-eabi"
+    mkdir "arm-none-eabi-gcc-build" do
+      system "../configure", "--target=#{target}",
+                             "--prefix=#{prefix}",
+                             "--infodir=#{info}/#{target}-gcc",
+                             "--disable-nls",
+                             "--without-isl",
+                             "--without-headers",
+                             "--with-system-zlib",
+                             "--with-pkgversion=Tigerbrew #{name} #{pkg_version} #{build.used_options*" "}".strip,
+                             "--with-bugurl=https://github.com/mistydemeo/tigerbrew/issues",
+                             "--with-as=#{Formula["arm-none-eabi-binutils"].bin}/arm-none-eabi-as",
+                             "--with-ld=#{Formula["arm-none-eabi-binutils"].bin}/arm-none-eabi-ld",
+                             "--enable-languages=c,c++"
+
+       system "make", "all-gcc"
+       system "make", "install-gcc"
+       system "make", "all-target-libgcc"
+       system "make", "install-target-libgcc"
+
+      # FSF-related man pages may conflict with native gcc
+      (share/"man/man7").rmtree
+    end
+  end
+
+  test do
+    (testpath/"test-c.c").write <<~EOS
+      int main(void)
+      {
+        int i=0;
+        while(i<10) i++;
+        return i;
+      }
+    EOS
+    system "#{bin}/arm-none-eabi-gcc", "-c", "-o", "test-c.o", "test-c.c"
+    assert_match "file format elf32-littlearm",
+                 shell_output("#{Formula["arm-none-eabi-binutils"].bin}/arm-none-eabi-objdump -a test-c.o")
+  end
+end

Library/Formula/arm-none-eabi-gdb.rb

@@ -0,0 +1,55 @@
+class ArmNoneEabiGdb < Formula
+  desc "GNU debugger for arm-none-eabi cross development"
+  homepage "https://www.gnu.org/software/gdb/"
+  url "https://ftp.gnu.org/gnu/gdb/gdb-14.1.tar.xz"
+  mirror "https://ftpmirror.gnu.org/gdb/gdb-14.1.tar.xz"
+  sha256 "d66df51276143451fcbff464cc8723d68f1e9df45a6a2d5635a54e71643edb80"
+  license "GPL-3.0-or-later"
+  head "https://sourceware.org/git/binutils-gdb.git", branch: "master"
+  revision 1
+
+  bottle do
+  end
+
+  depends_on "gmp"
+  depends_on "mpfr"
+  depends_on "xz" # required for lzma support
+  depends_on "zlib"
+  depends_on "texinfo" => :build
+
+  # Need compiler with C++11 support
+  needs :cxx11
+
+  def install
+    target = "arm-none-eabi"
+    args = %W[
+      --target=#{target}
+      --prefix=#{prefix}
+      --datarootdir=#{share}/#{target}
+      --includedir=#{include}/#{target}
+      --infodir=#{info}/#{target}-gdb
+      --mandir=#{man}
+      --disable-debug
+      --disable-dependency-tracking
+      --with-lzma
+      --with-system-zlib
+      --disable-binutils
+    ]
+
+    mkdir "build" do
+      system "../configure", *args
+      ENV.deparallelize # Error: common/version.c-stamp.tmp: No such file or directory
+      system "make"
+
+      # Don't install bfd or opcodes, as they are provided by binutils
+      system "make", "install-gdb"
+    end
+  end
+
+  test do
+    (testpath/"test.c").write "void _start(void) {}"
+    system "#{Formula["arm-none-eabi-gcc"].bin}/arm-none-eabi-gcc", "-g", "-nostdlib", "test.c"
+    assert_match "Symbol \"_start\" is a function at address 0x",
+          shell_output("#{bin}/arm-none-eabi-gdb -batch -ex 'info address _start' a.out")
+  end
+end