From 38f082dff6a4d38cac1d3e5a5bdd6e649c5f9b35 Mon Sep 17 00:00:00 2001
From: Glavo <zjx001202@gmail.com>
Date: Sun, 26 Feb 2023 04:43:05 +0800
Subject: [PATCH] Cross-compile for Linux ARM64

---
 script/build.py  | 16 ++++++++++++++--
 script/common.py | 10 ++++++----
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/script/build.py b/script/build.py
index 344945e..773a694 100755
--- a/script/build.py
+++ b/script/build.py
@@ -8,7 +8,7 @@ def main():
   build_type = common.build_type()
   machine = common.machine()
   system = common.system()
-  ndk = common.ndk()  
+  ndk = common.ndk()
 
   if build_type == 'Debug':
     args = ['is_debug=true']
@@ -52,8 +52,20 @@ def main():
       # 'skia_enable_gpu=true',
       # 'skia_use_gl=true',
       'extra_cflags_cc=["-frtti"]',
-      'cxx="g++-9"',
     ]
+
+    if (machine == 'arm64') and (machine != common.native_machine()):
+      args += [
+        'cc="aarch64-linux-gnu-gcc-9"',
+        'cxx="aarch64-linux-gnu-g++-9"',
+        'extra_cflags=["-I/usr/aarch64-linux-gnu/include"]'
+      ]
+    else:
+      args += [
+        'cc="gcc-9"',
+        'cxx="g++-9"',
+      ]
+
   elif 'windows' == system:
     args += [
       'skia_use_system_freetype2=false',
diff --git a/script/common.py b/script/common.py
index 6591e8d..4d2fad3 100644
--- a/script/common.py
+++ b/script/common.py
@@ -17,15 +17,18 @@ def system():
   (args, _) = parser.parse_known_args()
   return args.system if args.system else {'Darwin': 'macos', 'Linux': 'linux', 'Windows': 'windows'}[platform.system()]
 
+def native_machine():
+  return {'AMD64': 'x64', 'x86_64': 'x64', 'arm64': 'arm64'}[platform.machine()]
+
 def machine():
   parser = create_parser()
   (args, _) = parser.parse_known_args()
-  return args.machine if args.machine else {'AMD64': 'x64', 'x86_64': 'x64', 'arm64': 'arm64', 'aarch64': 'arm64'}[platform.machine()]
+  return args.machine if args.machine else native_machine()
 
 def version():
   parser = create_parser()
   args = parser.parse_args()
-  
+
   if args.version:
     return args.version
 
@@ -44,7 +47,7 @@ def classifier():
   parser = create_parser()
   (args, _) = parser.parse_known_args()
   return '-' + args.classifier if args.classifier else ''
-  
+
 def github_headers():
   if os.environ.get('GITHUB_BASIC'):
     auth = 'Basic ' + base64.b64encode(os.environ.get('GITHUB_BASIC').encode('utf-8')).decode('utf-8')
@@ -59,4 +62,3 @@ def ndk():
   parser = create_parser()
   (args, _) = parser.parse_known_args()
   return args.ndk if args.ndk else ''
-