# Maintainer: Christer Solskogen <christer.solskogen@gmail.com>
# Build order: aarch64-binutils -> aarch64-linux-api-headers -> aarch64-gcc-bootstrap -> aarch64-glibc -> aarch64-gcc -> aarch64-glibc (again)

_arch=aarch64
_target=$_arch-unknown-linux-gnu
pkgname=$_arch-gcc
pkgver=13.1.1
pkgrel=2
pkgdesc='The GNU Compiler Collection - cross compiler for aarch64'
arch=(x86_64)
url='https://gcc.gnu.org/'
license=(GPL LGPL FDL)
depends=(libmpc zstd libisl $_arch-glibc)
makedepends=($_arch-binutils git)
provides=($_arch-gcc)
conflicts=($_arch-gcc)
options=(!emptydirs !strip staticlibs)
_commit=fd8fc2c2ef69013043d0484b93054fb39b37664e
source=(git+https://gcc.gnu.org/git/gcc.git#commit=${_commit})

sha256sums=('SKIP')

validpgpkeys=('F3691687D867B81B51CE07D9BBE43771487328A9'  # bpiotrowski@archlinux.org
              '86CFFCA918CF3AF47147588051E8B148A9999C34'  # evangelos@foutrelis.com
              '13975A70E63C361C73AE69EF6EEB81F8981C74C7'  # richard.guenther@gmail.com
              'D3A93CAD751C2AF4F8C7AD516C35B99309B5FA62') # Jakub Jelinek <jakub@redhat.com>

prepare() {
  cd $_basedir

  rm -rf "$srcdir"/gcc-build
  mkdir "$srcdir"/gcc-build
}

build() {
  cd gcc-build
  CFLAGS=${CFLAGS/-Werror=format-security/}
  CXXFLAGS=${CXXFLAGS/-Werror=format-security/}

	_CFLAGS_FOR_TARGET="-march=armv8-a -O2 -pipe -fstack-protector-strong -fno-plt -fexceptions \
  -Wp,-D_FORTIFY_SOURCE=2 -Wformat -fstack-clash-protection"


  "$srcdir"/gcc/configure \
      --prefix=/usr \
      --with-sysroot=/usr/$_target/sys-root \
      --libexecdir=/usr/lib \
      --target=$_target \
		--enable-languages=c,c++ \
		--with-linker-hash-style=gnu \
      --with-system-zlib \
      --enable-__cxa_atexit \
      --enable-checking=release \
      --enable-clocale=gnu \
      --enable-default-pie \
      --enable-default-ssp \
      --enable-gnu-indirect-function \
      --enable-gnu-unique-object \
      --enable-libstdcxx-backtrace \
      --enable-linker-build-id \
      --enable-lto \
      --enable-plugin \
      --enable-shared \
      --enable-threads=posix \
      --disable-libssp \
      --disable-libstdcxx-pch \
      --disable-multilib \
      --disable-werror \
		--with-arch=armv8-a --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419 \
		--disable-nls CFLAGS_FOR_TARGET="${_CFLAGS_FOR_TARGET}" CXXFLAGS_FOR_TARGET="$_CFLAGS_FOR_TARGET -Wp,-D_GLIBCXX_ASSERTIONS"

  make
}

package() {
  cd gcc-build

  make install-strip DESTDIR="$pkgdir"
  ln -s $_target-gcc "$pkgdir"/usr/bin/$_target-cc
  # Remove files that conflict with host gcc package
  rm -r "$pkgdir"/usr/{include,lib/libcc*,share}

}