Manpage of LDD
LDDSection: Linux Programmer's Manual (1)
NAMEldd - print shared object dependencies
SYNOPSISldd [option]... file...
DESCRIPTIONlddprints the shared objects (shared libraries) required by each program or shared object specified on the command line.
SecurityIn the usual case, lddinvokes the standard dynamic linker (see ld.so(8)) with the LD_TRACE_LOADED_OBJECTSenvironment variable set to 1, which causes the linker to display the library dependencies. Be aware, however, that in some circumstances, some versions of lddmay attempt to obtain the dependency information by directly executing the program. Thus, you should neveremploy lddon an untrusted executable, since this may result in the execution of arbitrary code. A safer alternative when dealing with untrusted executables is:
- Print the version number of ldd.
- -v, --verbose
- Print all information, including, for example, symbol versioning information.
- -u, --unused
- Print unused direct dependencies. (Since glibc 2.3.4.)
- -d, --data-relocs
- Perform relocations and report any missing objects (ELF only).
- -r, --function-relocs
- Perform relocations for both data objects and functions, and report any missing objects or functions (ELF only).
- Usage information.
BUGSldddoes not work on a.out shared libraries.
ldddoes not work with some extremely old a.out programs which were built before lddsupport was added to the compiler releases. If you use lddon one of these programs, the program will attempt to run with argc= 0 and the results will be unpredictable.
SEE ALSOpldd(1), sprof(1), ld.so(8), ldconfig(8)
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