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
1
checgg OP 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); } } ``` |
2
Xiaobaixiao 2018-05-13 12:24:22 +08:00
把 test.py 移动到 libencrypt.so 所在文件夹,或者添加指定执行该命令的文件夹参数试试(如果有)
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3
checgg OP @Xiaobaixiao 是在同目录.
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4
virusdefender 2018-05-13 12:53:16 +08:00
strace python test.py 看看系统调用
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5
wevsty 2018-05-13 13:14:07 +08:00
提示不是很清楚么 cannot open shared object file: No such file or directory
找不到 libencrypt.so 这个文件,检查路径,工作目录,或者干脆写绝对路径上去。 |
6
rookiebulls 2018-05-13 13:40:57 +08:00 via iPhone
路径问题,拿到当前 py 脚本的路径,再 os.path.join 拼一下就可以了
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7
zsj950618 2018-05-13 14:58:35 +08:00
ldd libencrypt.so 看下,也有可能是 ld 路径错了。
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8
izoabr 2018-05-14 08:53:38 +08:00
ctypes.cdll.LoadLibrary 的 path 问题,你试试放到 python 的 lib 目录里去调用
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