Questions tagged [shared-library]
The shared-library tag has no usage guidance.
193
questions
0
votes
0answers
10 views
Only list direct (resolved) dependency paths with ldd, readelf or objdump
With ldd I can get a flat list of unique, fully resolved paths to all shared libraries that an executable depends on.
For a script where I'm bundling a binary, I'm copying over these shared libs. ...
0
votes
0answers
26 views
What is the entry point of a so (shared object?)'s source code?
Specifically I'm trying to port libcroco's functionality to a cross-platform BASIC dialect and need to know where to start looking at the code.
In short, what is the equivalent of Window's DLLMAIN?
1
vote
0answers
31 views
Accidently moved /usr/lib64 how can I restore
I was trying to free up space and clueless moved /usr/lib64/ to "/srv/maraba_ssd_scratch/apelin/root_files/usr_lib64". The next thing I was going to do is create a symlink in usr for lib64 to point to ...
3
votes
1answer
74 views
error while loading shared libraries; file too short
I am working on a CentOS 7 workstation. I had installed Rstudio and it was working fine until recently. But now, if I try to launch it at http://localhost:8787/ I get an error that says Unable to ...
0
votes
0answers
7 views
QNX throws an error as login: -sh: cant access shared libraries
When I am trying to login with non root user the QNX throws an error as login:
-sh: cant access shared libraries.
Why is it so?
I have already checked the permissions they are as below:
/lib (...
1
vote
1answer
30 views
Why (and how) do I have (seemingly!) duplicate symbols in my shared libraries?
I happened to need to work out which symbols were exported by which library from a flat list of exported shared library symbols. There were just enough symbols (20 or so) in the list that I wasn't ...
0
votes
0answers
39 views
error while loading shared libraries [Packet Tracer] kali linux
When I try to open "packet tracer" in Kali Linux, the result is :
./PacketTracer7: error while loading shared libraries: ./libpng12.so.0: cannot read file data: Error 21
0
votes
1answer
37 views
Specifying Depends correctly in debian/control file
I'm building a runtime-shared-library package libfoo0.deb where 0 here is a major package version and adhering to the naming conventions specified in the Debian policy.
The problem is I want to ...
1
vote
1answer
46 views
Activate-noawait ldconfig trigger for runtime library package
I'm reading the Debian policy section on runtime shared library package and came across the following statement:
Any package installing shared libraries in one of the default library
directories ...
0
votes
2answers
89 views
error while starting open ssh : /usr/sbin/sshd: /lib/libcrypt.so.1: version `XCRYPT_2.0' not found (required by /usr/sbin/sshd)
I am working on an embedded board, to access that board I need ssh to work smoothly. Currently, for debugging purpose I am using serial connection to access the board.
Now, when I try to start ...
1
vote
0answers
21 views
After setcap on executable, curl_easy_perform throws out of memory error
I've cross compiled an executable to run on Debian Stretch that requires a specific version of cURL (greater than 7.56) to run, and needs specific capabilities during execution. So on the executable ...
1
vote
1answer
33 views
unixODBC: Cannot load libmaodbc.so
I'm working on an embedded platform and I am trying to access a MariaDB through unixODBC.
Trying to test the connection with isql I get the response:
isql -v mydsn myuser mypw
[01000][unixODBC][...
1
vote
1answer
29 views
Packaging library distribution
I'm working on some shared library and now stuck with the problem that some software refused to pick the newer version, but some has to use the latest since it has some crucial changes. So I need to ...
2
votes
1answer
58 views
Where is libsystemd.so located on ARM devices?
I have an ARM Tinkerboard running Debian 9.8 (Stretch). Systemd version is 232. I'm working on a program that can be run from userland or as a daemon. If it is run as a daemon, then dlopen and dlsym ...
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
30 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
32 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
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0answers
82 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
122 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
206 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
644 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
67 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
84 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 ...
2
votes
0answers
65 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
4k 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
890 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
808 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
117 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 ...
1
vote
2answers
499 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
147 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 ...
2
votes
1answer
513 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/...
0
votes
1answer
260 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
103 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
191 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
36 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
1k 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 ...
3
votes
1answer
2k 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 ...
3
votes
1answer
795 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
555 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 ...
1
vote
1answer
168 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
603 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
494 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
521 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 (...
2
votes
1answer
518 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
166 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
382 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
39 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
1answer
184 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
127 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
3k 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,...
