All Questions
1,013
questions
1
vote
0
answers
18
views
Select specific version present in ld version script
Consider the setup present in this question:
GNU LD symbol versioning & C++ binary backwards-compatibility
Consider the version script. Is it possible to explicitly tell ld to limit the exposed ...
- 309
1
vote
0
answers
77
views
/usr/bin/ld multiple definition of during compile
I just want to mention that I didnt write this code or modify it in any way prior to trying to compile it. I have just been copying the source from EL5 to 6 to 7 and compiling it. I think when it went ...
- 329
0
votes
0
answers
22
views
Compile a PIE ELF program with different offsets in different sections
I am working on a research project where I need to compile a program with multiple sections. These sections need to be loaded with different PIE offsets. I am wondering how I can do it in GCC.
See ...
- 1,482
0
votes
1
answer
70
views
Unable to link libcurl statically and other libraries dynamically
I'm trying tu use curl-config --static-libs which is supposed to link libcurl statically but link all of libcurl's own dependencies dynamically.
This is all in a current ubuntu noble container
root@...
- 1,907
0
votes
0
answers
11
views
Why gcc can put _start at 0x1040 while custom assembly code and linker script can not?
I was leaning linker script and wrote assembly code as below:
#hello.s
.data
msg : .string "Hello, world!\n"
len = . - msg
.text
.global _start
_start: ...
- 23
0
votes
1
answer
78
views
very simple gcc linking problem in C with libzip [duplicate]
I need help building a trivial C program that uses libzip. I have a much more complex version, but here I'm asking about the simplest possible ZIP file program to make it easy to see what the problem ...
- 70
0
votes
0
answers
25
views
Change Linux build from shared ncurses5w to static causes a symbol has different size in shared object message?
Because the older ncurses5w is becoming harder to find, I changed the build to use /usr/lib/i386-linux-gnu/libncursesw.a and added tinfo as a shared library to link with.
However if I move the binary ...
- 2,069
0
votes
0
answers
30
views
`ld` says `undefined reference` for templated library [duplicate]
I'm trying to create a templated C++ library. The header file of the library is as follows:
// header.h
#include <iostream>
template<typename T>
class MyClass
{
private:
...
- 678
1
vote
1
answer
37
views
GNC C: Ideas over main starting point confusions?
An extremely simple problem demonstration:
#include <stdio.h>
void myFunc()
{
puts("Greetings, Code 'Mon ...");
}
int main(int argc, char *argv[])
{
puts("zMain 01.\n&...
- 13
0
votes
0
answers
21
views
How to use gcc compilation flags to make the .data section of the program execute code
I use -z execstack flag, But it can't work. Only the stack has execution permissions, not the .data segment.
Mapped address spaces:
Start Addr End Addr Size Offset ...
- 49
0
votes
0
answers
29
views
what can i do to resolve the error shown by command make for genomemapper?
I am trying to download GenomeMapper-0.4.4 from http://1001genomes.org/downloads/genomemapper.html in my system-gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0.
this is the command i am following as ...
0
votes
0
answers
61
views
Stop CMake from exporting dependencies
I am compiling a shared object using CMake (3.24) for Linux using gcc. For better code management, I have split our code into multiple static libraries that I combine together along with dependencies ...
- 551
1
vote
0
answers
40
views
Why does adding an LD_PRELOAD change order of relocation processing?
I have an I/O instrumentation tool that uses LD_PRELOAD to insert my shared object, libiot.so, into the call stack. When I do this, the order of the "relocation processing" changes. This ...
- 41
0
votes
0
answers
54
views
Use gcc to compile multiple c files, ml (masm) to compile multiple assembly files and link with extern linker: Undefined reference to '__main'
My ground problem is: I want to use a modern compiler to create through multplie steps a .exp file (special very old object file format from Phar Lab which starts with P3 as magic number and runs in ...
- 19
0
votes
0
answers
64
views
MacOS dlopen search path does not add .dylib extension using gcc/ld
I have a dylib that loads my other dylib on Mac but the search path is correct but it is without extension.
Here is an example:
hmodule = dlopen(str, RTLD_NOW);
I get an error:
dlopen(@rpath/libtestx....
- 3,387