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Questions tagged [shared-library]

The tag has no usage guidance.

17
votes
1answer
2k views

Why don't Unix/Linux systems traverse through directories until they find the required version of a linked library?

I have a binary executable named "alpha" that requires a linked library (libz.so.1.2.7) which is placed at /home/username/myproduct/lib/libz.so.1.2.7 I export the same to my terminal instance before ...
0
votes
0answers
12 views

SIGSEGV on dlopen with gdb

I'm currently building a shared library. The goal is to inject this lib in a process. Unfortunaly when I inject this lib in the process I get a SIGESGV about ostream. Here is a MWE to reproduce the ...
-2
votes
1answer
30 views

Linux Prog has 24 Libs Fails LDD, and strace shows 692 “1 ENOENT” during prog library reads

I am requesting opinions on expected and desired outcome of prog initialization, specifically loading of shared libraries for a program that I do not have source code. All code delivered via RPMs. ...
0
votes
0answers
37 views

apt-get install cifs-utils corrupted system libraries — caused chaos

My Linux libraries seem to have suffered a severe corruption just after running (as root): apt-get install cifs-utils I need to correct the corruption or restore the original libraries. Note: I ...
1
vote
0answers
73 views

How to resolve the undefined symbol of magic_setparam in /lib64/libmagic.so.1 ?

I have successfully installed the command s3cmd (1.6.1) that I downloaded from the s3tools official web site. So the s3cmd software should be all right, and also the system libmagic.so.l itself is no ...
0
votes
1answer
49 views

What does a “failed to map segment from shared object” error mean?

Many answers to other questions help resolve an error of the form "failed to map segment from shared object," but they usually have very specific answers that I find difficult to apply to other ...
1
vote
0answers
232 views

Access dll in linux

Okay so I have a bunch of .dll files that are compiled on windows (though I could recompile them on linux if that was necessary) that I want to use. The final idea I am having is to write a .so ...
4
votes
1answer
56 views

Placed library in /usr/lib, but ldconfig doesn't put it in cache

I'm starting a project that requires an external shared library third-party.so. I've placed it in /usr/lib. However, when I run sudo ldconfig -v, it's not listed. ldconfig -p | grep third-party.so ...
2
votes
0answers
73 views

Linux access windows share without loading to RAM

I have a laptop running an Arch-based Linux system and frequently need to access a windows share at my workplace. This is really annoying since it takes ages to load. Particularly, one folder is ...
1
vote
0answers
49 views

cannot find libarary error

I am trying to install a software "W" which requires some non standard packages like "XYZ". I am installing XYZ as instructed in the related site using the following commands ./configure -C make ...
1
vote
2answers
2k views

How to link to a shared library with a relative path?

In the man page for ld.so(8), it says that When resolving library dependencies, the dynamic linker first inspects each dependency string to see if it contains a slash (this can occur if a library ...
1
vote
1answer
507 views

Building shared library which is executable and linkable using Cmake

How to create an executable shared-library using cmake? Something like: libtest.so :: linkable shared library libtest.so :: executable too Note: gcc/g++ options are known to achieve the ...
0
votes
2answers
315 views

ldd shows no location after arrow; library does not exist on system

I want to create a chroot environment that has access to hand-picked programs but is completely isolated from the rest of the system. I created three folders in this chroot folder: bin, lib, lib64. I ...
1
vote
1answer
65 views

Are the addresses inside a shared library file virtual addresses, or relocatable addresses?

Are the addresses inside a shared library file virtual addresses, or relocatable addresses? Does the answer depend on whether the shared library file was built with GCC’s -fPIC option? Originated ...
0
votes
2answers
294 views

What is the difference between Shared object file and Relocatable file?

https://linux-audit.com/elf-binaries-on-linux-understanding-and-analysis/ says The type field tells us what the purpose of the file is. There are a few common file types. CORE (value 4) DYN (...
0
votes
1answer
103 views

What kinds of files can be dynamically loaded?

Operating System Concepts, by Silberschatz A., Galvin P. B., Gagne G. - Operating System Concepts, 9th Edition - 2012 says 8.1.4 Dynamic Loading In our discussion so far, it has been necessary ...
1
vote
1answer
325 views

What does “unused direct dependencies” mean?

When using the ldd command there is an option, -u, to print unused direct dependencies as stated in the on-line help. For example: ldd -u /bin/gcc Unused direct dependencies: /lib64/...
-1
votes
1answer
167 views

Why cannot 64-bit shared libraries be used by 32-bit code?

On GNU/Linux, x86/x86-64, in general, what is the reason that (at least sometimes, maybe there are exceptions) 64-bit library code cannot be used by a 32-bit program? I'm aware of many of the ...
0
votes
1answer
79 views

Mint 19 - Pidgin IM - Error while launching: libpurple.so.0: cannot open shared object file

System: Linux Mint 19 Cinnamon 64-bit, based on Ubuntu 18.04. Pidgin: Built from source, version 2.13.0. Pidgin would not launch from the GUI, so I tried it from terminal if I can see any error and ...
2
votes
1answer
130 views

install different version of GCC side by side

My primary problem is in my Fedora 28, GCC8 is installed. Now, this gives libgfortran.so.5. But many of my applications are not updated and still depends on libgfortran.so.3 So, how can I solve the ...
-1
votes
1answer
28 views

Can I programmatically remove funcionality from a shared library that is not used by a specified executable? [closed]

I have a library taking up a lot of disk space. Only one program I use links to that library. I am pretty sure that the program uses only a tiny fraction of the functionality provided by that library. ...
4
votes
3answers
966 views

Centos 7, I thought “yum install ___” was supposed to get all the dependencies, too?

I want to install Trillian onto my CentOS 7 box. I went to www.trillian.im/get/linux/6.1/linux.html and downloaded the rpm package trillian-6.1.0.5-1.fc25.x86_64.rpm. It was my understanding that ...
2
votes
1answer
1k views

What do the multiple GLIBC versions mean in the output of ldd?

The ldd program reports some missing shared libraries that my shared library needs. (I built it on a different machine with Red Hat Linux 7 and want to run it on another with Red Hat Linux 6.) In the ...
2
votes
1answer
522 views

How to ensure that a shared library will have its memory pages shared by several processes?

Let me first describe what I want to do, followed by what I manage to do, and finally my issue. Goal: implementing flush+flush cache attack in C I am trying to implement in C the flush+flush cache ...
0
votes
2answers
397 views

Creating a link to a shared library

I have a library ( ZendDebugger.so ) which in turn requires the openssl library but it doesn't find a reference to it. Indeed when ZendDebugger.so loads, it prints this error on the error log ( which ...
0
votes
1answer
92 views

Is the shared library object loaded as shared memory for the program?

I was coding some C when I started asking myself about free() inside a shared library and SIGKILL, and so on. Then, after some reading and re-thinking, I came up to this simple question. CONTEXT : ...
0
votes
1answer
400 views

What differences and relations are between the various `libc.so`?

On Lubntu 18.04 $ whereis libc libc: /usr/lib/x86_64-linux-gnu/libc.a /usr/lib/x86_64-linux-gnu/libc.so /usr/share/man/man7/libc.7.gz $ locate libc.so /lib/i386-linux-gnu/libc.so.6 /lib/x86_64-linux-...
0
votes
1answer
274 views

Are there any circumstances in which ld ignores LD_LIBRARY_PATH?

I've just come across a little problem with ld which I just can't explain. Let's say I have compiled a library in my home directory and installed it all under ~/root. The shared library file can be ...
4
votes
1answer
443 views

Fix hardcoded dynamic linking for executable

I have an executable file called reg with the following shared library dependencies: [terminal]$ ldd ./reg linux-vdso.so.1 => (0x00007ffc40d90000) libpthread.so.0 => /lib64/libpthread.so.0 (...
1
vote
1answer
377 views

Are shared library ABI compatible as long as their versions are the same?

Suppose I have a program compiled that's linked against libc.so.6 on one system (e.g., Ubuntu x64). If I take this binary to another system that has the same libc version 6 (e.g., Fedora x64), it ...
0
votes
0answers
157 views

Debian MadCoin Install Problem

I have this issue, I try to run ./MadCoin-qt it's wallet and i receive this errror: ./MadCoin-qt: error while loading shared libraries: libminiupnpc.so.8: cannot open shared object file: No such file ...
1
vote
2answers
337 views

How to resolve Depends: libwinpr2-2?

When I want to install any package like gedit: sudo apt-get clean sudo apt-get autoclean apt install gedit Output is: You might want to run 'apt --fix-broken install' to correct these. The ...
0
votes
1answer
29 views

How to install a shared library when installing to a system path?

I am experimenting with how to distribute a simple graphics library for Linux using a Makefile. The shared library is called libsgtk.so. Here is my first attempt for the Makefile: CFLAGS= -pthread \ ...
0
votes
0answers
112 views

gdalinfo: error while loading shared libraries: libNCSEcw.so.0: cannot open shared object file: No such file or directory

which gdalinfo returns /usr/bin/gdalinfo. This directory contains 'libNCSEcw.so.0' file. I have added include /usr/bin to /etc/ld.so.conf and have run ldconfig. Error persists. UPDATE: distribution ...
0
votes
0answers
626 views

libpython2.7.so.1.0()(64bit) not found by yum

So I'm trying to install Azure on CentOS with yum: link. But it keeps telling me it needs libpython2.7.so.1.0: [root@minnow02 Desktop]# yum install azure-cli Loaded plugins: fastestmirror, refresh-...
0
votes
1answer
145 views

Pandoc is missing a library file [closed]

pandoc-citeproc is missing a library file: [max@arch ~]$ pandoc-citeproc pandoc-citeproc: error while loading shared libraries: libHStext-icu-0.7.0.1-qGJENUzIfHIw3gGVnpCOt-ghc8.2.2.so: cannot open ...
3
votes
1answer
112 views

Shared library minor version management

I have a simple program called main: #include <iostream> #include "random.h" int main() { std::cout << "The program has started\n"; return get_another_random_number(); } ...
1
vote
1answer
2k views

Finding libssl on a customer's Linux

We're using a library which needs to load libssl in a version 1.0.*. It doesn't work with libssl.so.1.1. We need it to work on any Linux system. We try to load various versions and this usually works,...
0
votes
0answers
237 views

Object library not found by shared object library

I'm trying to build a shared object library but when I produce the shared object library it says the object file is not found. OSError: lib1.o: cannot open shared object file: No such file or ...
0
votes
1answer
619 views

Library is found by ldconfig but not by ldd for any program using this library

Running arch linux, I have qt5-base installed, which provides libQt5Core.so.5. Running ldconfig finds the shared object: $ sudo ldconfig -v | grep libQt5Core libQt5Core.so.5 -> libQt5Core.so.5.10....
4
votes
1answer
784 views

anaconda Qt vs system Qt

The anaconda python framework includes its own Qt shared libraries, among other ones. Because of the nature of the framework, it must appear first in the PATH environment variable so its python ...
0
votes
1answer
311 views

How do I fix an APT that complains about missing liblber? [closed]

# apt update /usr/lib/apt/methods/https: error while loading shared libraries: liblber-2.4.so.2: cannot open shared object /usr/lib/apt/methods/https: error while loading shared libraries: liblber-2.4....
2
votes
1answer
70 views

How does Qubes do memory management, especially with regard to shared objects?

I'm just reading about Qubes OS, and I have a very simple question -- how does it do memory management and shared object use? Feel free to correct any misconceptions or errs in vocab, but we have the ...
1
vote
1answer
380 views

Perf Error While Loading Shared Libraries

I was on CentOS 7.3 on x86_64 using perf compiled on the system itself from Kernel 4.13.7 source. It worked without any issue and was able to profile whichever application I wanted to. For some ...
1
vote
1answer
230 views

In what library on Linux are the system calls and how is this library linked to the executable object file that contains the system calls?

I know that the system calls are not in the C standard Library. Is there any library (some sort of a system library) where the system calls are? If there is such a library how is this library linked ...
4
votes
1answer
6k views

Is the vdso shared library (linux-vdso.so) the library that contains the kernel object code (system calls)?

I noticed that all my programs compiled to gcc are linked to vdso library. Is this the library that contain the system calls to the kernel, like mmap() and fork() and other system calls? I know that ...
1
vote
0answers
34 views

Is there a standard/accepted way for a plugin library to identify its location on disk?

I am working on a C program that has a plugin architecture. We build and package both .rpm and .deb packages. Some plugins have additional non-binary resources, such as image files, or script files ...
0
votes
1answer
560 views

Stata 14 fails to start on RHEL 7.x, with “libpng12.so.0” error. How do I install libpng12?

The proprietary software Stata version 14 breaks on RHEL 7.3. Stata says: stata-se: error while loading shared libraries: libpng12.so.0: cannot open shared object file: No such file or directory So ...
0
votes
1answer
342 views

How to tell libgs to use another freetype implementation?

So after a year of use my printer decided to not print anymore. After troubleshooting for a bit I noticed that the cups error log shows something like gs: symbol lookup error: <path>/libgs.so....
2
votes
1answer
66 views

How to run an application compiled in a newer version of Ubuntu in an old one?

I have an application compiled in Ubuntu 16.04 that depends on many libraries, like Qt, boost and many others with the version that comes with that version. However, I need to run this application in ...