I have some Python code that uses a library that implements virtual file systems. For the drivers for those virtual file systems to work a bunch of C functions (like readdir(), opendir(), fseek()) need to be overridden/replaced - with the replacements defined in a .so/.cpp file. Usually this could be done by setting LD_PRELOAD to that .so file. However, I need to be able to override these functions at runtime, and ideally revert back to the non-overridden functions once the Python functions that use those overridden functions have executed. Is this possible?
How can I override C functions (like with LD_PRELOAD) at runtime?
898 views Asked by false_azure At
1
There are 1 answers
Related Questions in PYTHON
- How to store a date/time in sqlite (or something similar to a date)
- Instagrapi recently showing HTTPError and UnknownError
- How to Retrieve Data from an MySQL Database and Display it in a GUI?
- How to create a regular expression to partition a string that terminates in either ": 45" or ",", without the ": "
- Python Geopandas unable to convert latitude longitude to points
- Influence of Unused FFN on Model Accuracy in PyTorch
- Seeking Python Libraries for Removing Extraneous Characters and Spaces in Text
- Writes to child subprocess.Popen.stdin don't work from within process group?
- Conda has two different python binarys (python and python3) with the same version for a single environment. Why?
- Problem with add new attribute in table with BOTO3 on python
- Can't install packages in python conda environment
- Setting diagonal of a matrix to zero
- List of numbers converted to list of strings to iterate over it. But receiving TypeError messages
- Basic Python Question: Shortening If Statements
- Python and regex, can't understand why some words are left out of the match
Related Questions in C++
- How to immediately apply DISPLAYCONFIG_SCALING display scaling mode with SetDisplayConfig and DISPLAYCONFIG_PATH_TARGET_INFO
- Why can't I use templates members in its specialization?
- How to fix "Access violation executing location" when using GLFW and GLAD
- Dynamic array of structures in C++/ cannot fill a dynamic array of doubles in structure from dynamic array of structures
- How do I apply the interface concept with the base-class in design?
- File refuses to compile std::erase() even if using -std=g++23
- How can I do a successful map when the number of elements to be mapped is not consistent in Thrust C++
- Can std::bit_cast be applied to an empty object?
- Unexpected inter-thread happens-before relationships from relaxed memory ordering
- How i can move element of dynamic vector in argument of function push_back for dynamic vector
- Brick Breaker Ball Bounce
- Thread-safe lock-free min where both operands can change c++
- Watchdog Timer Reset on ESP32 using Webservers
- How to solve compiler error: no matching function for call to 'dmhFS::dmhFS()' in my case?
- Conda CMAKE CXX Compiler error while compiling Pytorch
Related Questions in C
- How to call a C language function from x86 assembly code?
- What does: "char *argv[]" mean?
- User input sanitization program, which takes a specific amount of arguments and passes the execution to a bash script
- How to crop a BMP image in half using C
- How can I get the difference in minutes between two dates and hours?
- Why will this code compile although it defines two variables with the same name?
- Compiling eBPF program in Docker fails due to missing '__u64' type
- Why can't I use the file pointer after the first read attempt fails?
- #include Header files in C with definition too
- OpenCV2 on CLion
- What is causing the store latency in this program?
- How to refer to the filepath of test data in test sourcecode?
- 9 Digit Addresses in Hexadecimal System in MacOS
- My server TCP doesn't receive messages from the client in C
- Printing the characters obtained from the array s using printf?
Related Questions in DYNAMIC-LINKING
- Making binary depend on the correct `libpthread`
- Unable to load library from custom paths during compilation
- Segmentation fault while loading library with LD_LIBRARY_PATH
- Is mixing dynamic and shared libraries a good idea when creating an ODBC Driver?
- Executable searching for the linked library in different path than the one set using LD_LIBRARY_PATH
- Where is the order in which ELF relocations are applied specified?
- Cmake: Specify custom path to STL library (libstdc++)
- Visual Studio 2022 - how to link an .obj file residing somewhere else on the system?
- Unable to dynamically link on Alpine
- Statically include libc in c++ program with gcc without using -static option
- How to set BOOST_ALL_DYN_LINK for Cython build of my library interface on Windows 10
- What exactly is static variable behaviour in multiple linkeage of a library that contains it in C++?
- Using patchelf to change the SONAME of libGLdispatch.so breaks its functionality
- What is the linux command that gives the paths to libraries for linking during c++ compilation?
- build static curl executable from source
Related Questions in LD-PRELOAD
- How can a shared object be statically linked
- How do I debug a constructor function in an LD_PRELOAD library?
- LD_PRELOAD didn't load my library and no errors or warnings
- How to make sure which memory allocator will be used by RocksDB?
- Problems loading shared library using LD_PRELOAD
- How to run code exactly once in LD_PRELOADed shared library?
- Override read function, but i have problems when the file descripot is 3 or 4
- Use LD_PRELOAD to intercept system calls from library which is statically linked?
- Override open function using LD_PRELOAD
- How does the libhugetlbfs library replace the memory allocation process with huge pages?
- export LD_PRELOAD for matlab MEX files
- What does it mean for a shared object to be listed twice, both as found and not found, after setting LD_PRELOAD?
- Hooking into Linux executable with LD_PRELOAD not work
- Dynamic linked to libc in Linux does not have bind/connect
- Dynamic linked Go program when cross compile
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
I am guessing you want ctypes. Here is a discussion: https://docs.python.org/2/library/ctypes.html