Questions tagged [ld]
These questions are about ld: a dynamic linker/loader which combines object files, archive files and shared libraries before the final compilation of a program.
114 questions
1
vote
2
answers
85
views
How to specify ELF shared objects in `LD_PRELOAD` if their path contains a space character?
Paths to ELF shared objects in LD_PRELOAD cannot contain spaces, as space is one of the two list separators, and it cannot be escaped:
LD_PRELOAD
A list of additional, user-specified, ELF shared ...
- 3,554
2
votes
1
answer
59
views
Why can I not intercept `write` in `seq`?
Based on Limit file IO speed I have built https://git.data.coop/tange/tangetools/src/branch/master/iothrottle
It works for some programs:
iothrottle -i 10M cat foo > bar # Yes, here you could just ...
- 37.5k
1
vote
0
answers
109
views
Why does ldd behave differently on the ldconfig binary?
When we run ldd on some file, there are two possible results:
If the file is dynamic executable, the shared dependencies are shown, for example:
# ldd /usr/bin/sleep
linux-vdso.so.1 (...
2
votes
1
answer
445
views
LD_DEBUG_OUTPUT does not work
touch /tmp/debug.log
LD_DEBUG=all LD_DEBUG_OUTPUT=/tmp/debug.log ls
After doing this I expect debug info to be written to the /tmp/debug.log file, but it is empty.
Ubuntu 20.04
- 371
1
vote
1
answer
836
views
musl ld maps libc.so.6 to ld-musl-x86_64.so.1
/lib # ./ld-musl-x86_64.so.1 --list /usr/lib/libEGL.so.1
./ld-musl-x86_64.so.1 (0x7f2b06797000)
libdl.so.2 => ./ld-musl-x86_64.so.1 (0x7f2b06797000)
libm.so.6 => ./ld-...
- 113
0
votes
1
answer
183
views
Who is the original author of GNU ld?
Author information can be difficult to find for projects whose histories go back long before their git repositories. According to Wikipedia, Richard Stallman wrote gcc, and Dean Elsner wrote GNU as.
...
- 109
8
votes
2
answers
3k
views
LD_PRELOAD does not work and LD_DEBUG shows nothing
I use LD_PRELOAD to overwrite the read function. For a minimal test application it works fine, but if I test it with a larger application it does not work anymore. Also LD_DEBUG=all does not show ...
- 213
0
votes
0
answers
393
views
ld error with clangs when compiling vdso
i am trying to compile a kernel but it always return this error:
LD arch/arm64/kernel/vdso/built-in.o
ld.lld: error: cannot find linker script -r
make[2]: *** [scripts/Makefile.build:507: arch/...
- 11
1
vote
0
answers
154
views
Behavior of running ldconfig with a directory argument
I have installed some shared libraries to the non-standard directory /usr/lib64/mylib. Then I run sudo ldconfig /usr/lib64/mylib. I can assert by running ldconfig -p that my libraries are indeed ...
- 111
0
votes
2
answers
683
views
No rule to make target `scripts/extract-cert' when building Linux Kernel - Centos 7, devtoolset-9
I'm trying to debug my build environment for compiling a linux kernel with some patch sets.
I installed devtoolset-9 in my CentOS 7 environment to satisfy the minimum gcc version requirement of the 5....
- 1
1
vote
1
answer
178
views
How to load android binaries in Debian environment?
I am trying to run adbd from within a chrooted environment. I can run it fine with Android's LD_LIBRARY_PATH=$PWD ./linker64 $PWD/adbd.
When I try to run ./adbd I get:
bash: ./adbd: cannot execute: ...
- 491
0
votes
1
answer
2k
views
How do I edit '/etc/ld.so.conf' in a yocto recipe?
As suggested by Zac Anger, i copy this question over here:
I have a yocto recipe in which I copy/install some stuff to an image. After that, I want to add a line to the /etc/ld.so.conf file like this, ...
- 115
1
vote
2
answers
1k
views
gdbus symbol look up error
I'm using Archlinux. After a recent update, I find that the gdbus doesn't work and it presents a symbol lookup error:
➜ tidedra@ZgrArch ~ gdbus
gdbus: symbol lookup error: /usr/lib/libgobject-2.0.so....
- 41
1
vote
2
answers
643
views
Hacking LD_LIBRARY_PATH to use a recent bash from a chroot
I try to get a more up to date version of bash from LinuxMint.
I have a chroot with Debian Sid in my box.
What I try to do in a bash wrapper script, early in my PATH
#!/bin/bash
LD_LIBRARY_PATH=/path/...
2
votes
1
answer
2k
views
GCC linker search path when cross-compiling
I have various tool chain directories on my linux machine for compiling under specific compiler versions. I have a problem where the linker (in the tool chain dir) is selecting a library file from ...
- 21