Alternatives:

• GNU BFD Linker

• gold

• LLD

• mold

iX 12/2022 - Page 112 - Ohne Linker kein Programm
iX 02/2023 - Page 136 - Mit dem richtigen Linker Zeit sparen
Linux-Magazin 08/2023 - Page 70 - Programmverhalten mit LD_PRELOAD ändern

binutils Manual pages:

user@host:~$ man 1 ld
user@host:~$ man 1 nm
user@host:~$ man 1 objdump
user@host:~$ man 1 readelf
user@host:~$ man 1 strip

GNU C Library: Binaries Manual pages:

user@host:~$ man 1 ldd

Dynamically linked library call tracer Manual pages:

user@host:~$ man 1 ltrace

System call tracer Manual pages:

user@host:~$ man 1 strace

To install the GNU assembler, linker and binary utilities on Debian:

root@host:~$ apt-get -y install binutils binutils-common

To install the documentation for the GNU assembler, linker and binary utilities on Debian:

root@host:~$ apt-get -y install binutils-doc

To install the Dynamically linked library call tracer on Debian:

root@host:~$ apt-get -y install ltrace

To install the System call tracer on Debian:

root@host:~$ apt-get -y install strace

• Create a symlink of /usr/bin/ld to the linker of choice

• Use of LDFLAGS environment variable and there -fuse-ld=, but this depends on support for the specific linker in the used compiler (e.g. GCC, Clang, …)

• Workaround: Create a directory e.g. tools, create a symlink to the linker of choice in there and use the option -Btools in the LDFLAGS environment variable.

root@host:~$ readelf -Ws <LIBRARY_FILE>

Setting the environment variables LD_LIBRARY_PATH or LD_PRELOAD in order to change the search order of the linked shared libraries to be loaded at start of a binary.

To trace the system calls (i.e. Linux kernel calls) of a program upon execution:

root@host:~$ strace -f <PROGRAMM>

To trace the calls to symbols exported by dynamically linked libraries of a program upon execution:

root@host:~$ ltrace -f <PROGRAM>