linkcheck is a tool for detecting problems with dynamic library resolution of elf files. Currently, it opens and performs analysis on all library dependencies of the specified file and checks for:
- unresolved symbols
- duplicate symbols
- missing/conflicting libraries
In contrast to (some versions of) ldd, linkcheck does not execute the binary to be analyzed, so (apart from potentially unrelated undiscovered problems) it should be safe to use on untrusted binaries.
The analysis of unresolved and duplicate symbols currently yields a number of false positives, i.e. unresolved and duplicate symbols that are not actually problematic. linkcheck is mostly intended to be used to detect what the problem is if you have a linking related problem in your project.
linkcheck is written in Rust and needs a working installation of cargo to build.
$ git clone https://github.com/ftilde/linkcheck
$ cd linkcheck
$ cargo build --release
$ target/release/linkcheck $PATH_TO_FILE_TO_ANALZE
$ linkcheck --help
linkcheck 0.1.0
ftilde <[email protected]>
Show potential dynamic linking problems of ELF files.
USAGE:
linkcheck [FLAGS] [OPTIONS] <file>
FLAGS:
-f, --full analysis Perform full analysis (default if neither -u, -d, nor -r are specified)
-h, --help Prints help information
-d, --duplicate-symbols Show used duplicate symbols
-r, --lib-resolution Show library resolution problems
-u, --unresolved-symbols Show unresolved symbols
-V, --version Prints version information
OPTIONS:
-l, --lib <search_methods>... Library search locations (in order specified). Special options are: rpath, runpath,
ld_library_path, ldconfig:<path_to_ld.so.conf>. All other options are interpreted
as fixed paths to library locations. If nothing is specified, the default
resolution behavior of GNU ld.so is mimicked.
ARGS:
<file> ELF file to be analyzed
Compile the binaries in the examples folder and run linkcheck on them.
linkcheck is released under the MIT license.