From 767bec7f40d5ea99173d9f5da594a70532004b12 Mon Sep 17 00:00:00 2001
From: lxm <1274844347@qq.com>
Date: Wed, 21 Jan 2026 17:37:41 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=B7=BB=E5=8A=A0=E6=A3=80=E6=9F=A5AAB?=
 =?UTF-8?q?=E4=B8=ADso=E6=96=87=E4=BB=B616KB=E5=AF=B9=E9=BD=90=E7=9A=84?=
 =?UTF-8?q?=E8=84=9A=E6=9C=AC?=
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添加一个Python脚本用于检查AAB文件中arm64-v8a架构的.so文件是否满足16KB内存对齐要求
---
 check_16kb.py | 86 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 check_16kb.py

diff --git a/check_16kb.py b/check_16kb.py
new file mode 100644
index 000000000..d039b3e3f
--- /dev/null
+++ b/check_16kb.py
@@ -0,0 +1,86 @@
+import zipfile
+import struct
+import sys
+import os
+
+def check_so_alignment(aab_path):
+    print(f"Checking AAB: {aab_path}")
+    
+    try:
+        with zipfile.ZipFile(aab_path, 'r') as z:
+            so_files = [f for f in z.namelist() if f.endswith('.so') and 'arm64-v8a' in f]
+            
+            if not so_files:
+                print("No arm64-v8a .so files found in the AAB.")
+                return
+
+            print(f"Found {len(so_files)} arm64-v8a .so files.")
+            
+            issues = []
+            
+            for so_name in so_files:
+                with z.open(so_name) as f:
+                    data = f.read()
+                    
+                    # Check ELF magic
+                    if data[:4] != b'\x7fELF':
+                        print(f"Skipping {so_name}: Not an ELF file")
+                        continue
+                    
+                    # Check class (64-bit)
+                    if data[4] != 2:
+                        print(f"Skipping {so_name}: Not a 64-bit ELF")
+                        continue
+
+                    # Parse ELF Header (Elf64_Ehdr)
+                    # e_phoff is at offset 32 (0x20), 64-bit unsigned
+                    e_phoff = struct.unpack('<Q', data[32:40])[0]
+                    # e_phentsize is at offset 54 (0x36), 16-bit unsigned
+                    e_phentsize = struct.unpack('<H', data[54:56])[0]
+                    # e_phnum is at offset 56 (0x38), 16-bit unsigned
+                    e_phnum = struct.unpack('<H', data[56:58])[0]
+
+                    max_align = 0
+                    is_aligned = True
+                    
+                    for i in range(e_phnum):
+                        offset = e_phoff + i * e_phentsize
+                        # Parse Program Header (Elf64_Phdr)
+                        # p_type is at offset 0, 32-bit unsigned
+                        p_type = struct.unpack('<I', data[offset:offset+4])[0]
+                        
+                        # PT_LOAD is 1
+                        if p_type == 1:
+                            # p_align is at offset 48 (0x30), 64-bit unsigned
+                            p_align = struct.unpack('<Q', data[offset+48:offset+56])[0]
+                            max_align = max(max_align, p_align)
+                            
+                            if p_align < 0x4000:
+                                is_aligned = False
+                    
+                    if not is_aligned:
+                        issues.append((so_name, max_align))
+                        print(f"[FAIL] {so_name}: Max alignment is {max_align} (needs 16384/0x4000)")
+                    else:
+                        # print(f"[PASS] {so_name}: Aligned to {max_align}")
+                        pass
+
+            if issues:
+                print("\nSummary of non-compliant libraries (arm64-v8a):")
+                for name, align in issues:
+                    print(f" - {name} (Align: {align})")
+                sys.exit(1)
+            else:
+                print("\nAll arm64-v8a shared libraries are 16KB aligned!")
+                sys.exit(0)
+
+    except Exception as e:
+        print(f"Error checking AAB: {e}")
+        sys.exit(1)
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python check_16kb.py <path_to_aab>")
+        sys.exit(1)
+    
+    check_so_alignment(sys.argv[1])