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From ffecb0ce72f51ec134dc33636eedcebe53e4ec9e Mon Sep 17 00:00:00 2001
From: Iain Sandoe <iain@sandoe.co.uk>
Date: Tue, 18 Aug 2020 22:29:51 +0100
Subject: [PATCH 2/2] Darwin, Arm64: Initial support for the self-host driver.
At present, this just includes the generic Darwin stuff.
NOTE:
This patch is pulled from: https://github.com/iains/gcc-darwin-arm64/
See commit 89dc5a9d5ed3e6b2ba6a4725bd51841ee758b6cd
Its been backported to gcc-10.2
---
gcc/config.host | 7 +++++-
gcc/config/aarch64/host-aarch64-darwin.c | 32 +++++++++++++++++++++++++++++++
gcc/config/aarch64/x-darwin | 3 ++
3 files changed, 41 insertions(+), 1 deletion(-)
create mode 100644 gcc/config/aarch64/host-aarch64-darwin.c
create mode 100644 gcc/config/aarch64/x-darwin
--- a/gcc/config.host
+++ b/gcc/config.host
@@ -99,7 +99,8 @@
esac
case ${host} in
- aarch64*-*-freebsd* | aarch64*-*-linux* | aarch64*-*-fuchsia*)
+ aarch64*-*-freebsd* | aarch64*-*-linux* | aarch64*-*-fuchsia* |\
+ aarch64-*-darwin* | arm64*-*-darwin*)
case ${target} in
aarch64*-*-*)
host_extra_gcc_objs="driver-aarch64.o"
@@ -251,6 +252,10 @@
host_extra_gcc_objs="${host_extra_gcc_objs} driver-mingw32.o"
host_lto_plugin_soname=liblto_plugin-0.dll
;;
+ aarch64-*-darwin* | arm64-*-darwin*)
+ out_host_hook_obj="${out_host_hook_obj} host-aarch64-darwin.o"
+ host_xmake_file="${host_xmake_file} aarch64/x-darwin"
+ ;;
i[34567]86-*-darwin* | x86_64-*-darwin*)
out_host_hook_obj="${out_host_hook_obj} host-i386-darwin.o"
host_xmake_file="${host_xmake_file} i386/x-darwin"
--- /dev/null
+++ b/gcc/config/aarch64/host-aarch64-darwin.c
@@ -0,0 +1,32 @@
+/* Arm64-darwin host-specific hook definitions.
+ Copyright (C) 2020 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#define IN_TARGET_CODE 1
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "hosthooks.h"
+#include "hosthooks-def.h"
+#include "config/host-darwin.h"
+
+/* Darwin doesn't do anything special for arm64/aarch64 hosts; this file
+ exists just to include the generic config/host-darwin.h. */
+
+const struct host_hooks host_hooks = HOST_HOOKS_INITIALIZER;
--- /dev/null
+++ b/gcc/config/aarch64/x-darwin
@@ -0,0 +1,3 @@
+host-aarch64-darwin.o : $(srcdir)/config/aarch64/host-aarch64-darwin.c
+ $(COMPILE) $<
+ $(POSTCOMPILE)
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