duangsuse::Echo

^之后 duangsuse 自然套路

echo "#!/lib64/ld-linux-x86-64.so.2\n" > fooo
cat a.out >> fooo
然后妄想可以正常运行了 🙈
./fooo: error while loading shared libraries: ./fooo: invalid ELF header

16 views07:14

duangsuse::Echo

另外你们不要以为 /lib64/ld-linux-x86-64.so.2 是一个库，它是一个 CLI 工具(helper program)，要不然怎么链接程序呢（删掉
/lib64/ld-linux-x86-64.so.2

Usage: ld.so [OPTION]... EXECUTABLE-FILE [ARGS-FOR-PROGRAM...]
You have invoked `ld.so', the helper program for shared library executables.
This program usually lives in the file `/lib/ld.so', and special directives
in executable files using ELF shared libraries tell the system's program
loader to load the helper program from this file.  This helper program loads
the shared libraries needed by the program executable, prepares the program
to run, and runs it.  You may invoke this helper program directly from the
command line to load and run an ELF executable file; this is like executing
that file itself, but always uses this helper program from the file you
specified, instead of the helper program file specified in the executable
file you run.  This is mostly of use for maintainers to test new versions
of this helper program; chances are you did not intend to run this program.

  --list                list all dependencies and how they are resolved
  --verify              verify that given object really is a dynamically linked
   object we can handle
  --inhibit-cache       Do not use /etc/ld.so.cache
  --library-path PATH   use given PATH instead of content of the environment
   variable LD_LIBRARY_PATH
  --inhibit-rpath LIST  ignore RUNPATH and RPATH information in object names
   in LIST
  --audit LIST          use objects named in LIST as auditors