David <[email protected]> added the comment:
Another small update:
After I recompiled Python with the commented out statement, I did a small test
if loading a shared library works.
I compiled the following test function to testib.so:
#include <stdio.h>
void test_func(void);
void test_func(void) {
printf("hello world\n");
}
After that I used ctypes to load this library and execute the test_func():
(gdb) file python2.7
Reading symbols from python2.7...done.
(gdb) run -c "import ctypes; lib_test =
ctypes.cdll.LoadLibrary('/tmp/testlib.so'); lib_test.test_func();"
Starting program: /usr/bin/python2.7 -c "import ctypes; lib_test =
ctypes.cdll.LoadLibrary('/tmp/testlib.so'); lib_test.test_func();"
warning: Unable to find libthread_db matching inferior's thread library, thread
debugging will not be available.
hello world
Program received signal SIGSEGV, Segmentation fault.
PyCFuncPtr_call (self=<optimized out>, inargs=<optimized out>, kwds=<optimized
out>) at /home/user/ARM_Linux/src/Python-2.7.15/Modules/_ctypes/_ctypes.c:4108
4108 /home/user/ARM_Linux/src/Python-2.7.15/Modules/_ctypes/_ctypes.c: No
such file or directory.
(gdb)
It prints the expected output, but again I get a segmentation fault, this time
in PyCFuncPtr_call function.
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<https://bugs.python.org/issue35350>
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