请教 Python 如何调用 arm 编译的 so 文件?

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so 文件信息

# readelf -h libencrypt.so ELF Header: Magic: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00 Class: ELF32 Data: 2's complement, little endian Version: 1 (current) OS/ABI: UNIX - System V ABI Version: 0 Type: DYN (Shared object file) Machine: ARM Version: 0x1 Entry point address: 0x0 Start of program headers: 52 (bytes into file) Start of section headers: 16768 (bytes into file) Flags: 0x5000000, Version5 EABI Size of this header: 52 (bytes) Size of program headers: 32 (bytes) Number of program headers: 7 Size of section headers: 40 (bytes) Number of section headers: 21 Section header string table index: 20

python 及系统版本信息（ docker 容器）

root@arm32v7-openjdk:/MyApp/pytest# python -V Python 2.7.13 root@arm32v7-openjdk:/MyApp/pytest# uname -a Linux arm32v7-openjdk 4.9.41-moby #1 SMP Wed Sep 6 00:05:16 UTC 2017 armv7l GNU/Linux

python 代码

import ctypes ll = ctypes.cdll.LoadLibrary """ 1 有试过绝对路径和把这个库文件 copy 到 /usr/local/lib/ 目录下 2 文件肯定存在 3 权限是 777 """ lib = ll("./libencrypt.so")

报错信息

root@arm32v7-openjdk:/MyApp/pytest# python test.py Traceback (most recent call last): File "test.py", line 3, in <module> lib = ll("./libencrypt.so") File "/usr/lib/python2.7/ctypes/__init__.py", line 440, in LoadLibrary return self._dlltype(name) File "/usr/lib/python2.7/ctypes/__init__.py", line 362, in __init__ self._handle = _dlopen(self._name, mode) OSError: ./libencrypt.so: cannot open shared object file: No such file or directory

8 条回复 2018-05-14 08:53:38 +08:00

checgg

2018-05-13 12:02:36 +08:00

顺便一提,用 java 写也是报同样的错
```
public class test {
public static void main(String[] args) {
System.out.print("Hello world");
String so = "./libencrypt.so";
System.load(so);
}
}

```