fix: fix compilation.

Signed-off-by: Paolo Insogna <paolo@cowtech.it>

Author: ShogunPanda

deps/libffi/libffi.gyp

@@ -140,7 +140,6 @@
           'actions': [
             {
               'action_name': 'preprocess_win64_intel_asm',
-              'process_outputs_as_sources': 1,
               'inputs': [
                 'preprocess_asm.py',
                 'include/ffi_cfi.h',
@@ -150,7 +149,7 @@
                 '<(INTERMEDIATE_DIR)/fficonfig.h',
               ],
               'outputs': [
-                '<(INTERMEDIATE_DIR)/win64_intel.asm',
+                '<(INTERMEDIATE_DIR)/win64_intel.pre.asm',
               ],
               'action': [
                 '<(python)',
@@ -167,13 +166,31 @@
                 'FFI_STATIC_BUILD',
               ],
             },
+            {
+              'action_name': 'sanitize_win64_intel_asm',
+              'process_outputs_as_sources': 1,
+              'inputs': [
+                'sanitize-asm.py',
+                '<(INTERMEDIATE_DIR)/win64_intel.pre.asm',
+              ],
+              'outputs': [
+                '<(INTERMEDIATE_DIR)/win64_intel.asm',
+              ],
+              'action': [
+                '<(python)',
+                'sanitize-asm.py',
+                '--input',
+                '<(INTERMEDIATE_DIR)/win64_intel.pre.asm',
+                '--output',
+                '<@(_outputs)',
+              ],
+            },
           ],
         }],
         ['OS == "win" and target_arch == "arm64"', {
           'actions': [
             {
               'action_name': 'preprocess_win64_arm_asm',
-              'process_outputs_as_sources': 1,
               'inputs': [
                 'preprocess_asm.py',
                 'include/ffi_cfi.h',
@@ -183,7 +200,7 @@
                 '<(INTERMEDIATE_DIR)/fficonfig.h',
               ],
               'outputs': [
-                '<(INTERMEDIATE_DIR)/win64_armasm.asm',
+                '<(INTERMEDIATE_DIR)/win64_armasm.pre.asm',
               ],
               'action': [
                 '<(python)',
@@ -200,6 +217,25 @@
                 'FFI_STATIC_BUILD',
               ],
             },
+            {
+              'action_name': 'sanitize_win64_arm_asm',
+              'process_outputs_as_sources': 1,
+              'inputs': [
+                'sanitize-asm.py',
+                '<(INTERMEDIATE_DIR)/win64_armasm.pre.asm',
+              ],
+              'outputs': [
+                '<(INTERMEDIATE_DIR)/win64_armasm.asm',
+              ],
+              'action': [
+                '<(python)',
+                'sanitize-asm.py',
+                '--input',
+                '<(INTERMEDIATE_DIR)/win64_armasm.pre.asm',
+                '--output',
+                '<@(_outputs)',
+              ],
+            },
           ],
         }],
       ],

deps/libffi/sanitize-asm.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+
+import argparse
+from pathlib import Path
+
+
+def normalize_path(value):
+    return str(value).strip().strip('"')
+
+
+def sanitize_asm(input_path, output_path):
+    source = Path(normalize_path(input_path)).read_text(encoding='utf-8')
+    lines = []
+    for line in source.splitlines(keepends=True):
+        if line.lstrip().startswith('#'):
+            continue
+        lines.append(line)
+
+    Path(normalize_path(output_path)).write_text(''.join(lines), encoding='utf-8')
+
+
+def main(argv=None):
+    parser = argparse.ArgumentParser(description='Sanitize preprocessed assembly output')
+    parser.add_argument('--input', required=True)
+    parser.add_argument('--output', required=True)
+    args = parser.parse_args(argv)
+
+    sanitize_asm(args.input, args.output)
+    return 0
+
+
+if __name__ == '__main__':
+    raise SystemExit(main())

test/ffi/test-ffi-module.js

@@ -105,6 +105,7 @@ test('ffi exports expected API surface', () => {
     'setUint32',
     'setUint64',
     'setUint8',
+    'suffix',
     'toArrayBuffer',
     'toBuffer',
     'toString',