CTF vs strip

gistfile1.md

Original file with CTF:

$ ls -l test.ctf
-rwxr-xr-x   1 root     root       13128 Oct  3 14:16 test.ctf

$ dtrace -lvn 'pid$target:a.out:foo:entry' -c ./test.ctf

        Argument Types
                args[0]: userland int

/usr/bin/strip

Test with no arguments, with -l, and with -x:

$ ls -l test.ctf.strip*
-rwxr-xr-x   1 root     root        8072 Oct  3 14:43 test.ctf.strip
-rwxr-xr-x   1 root     root       13128 Oct  3 14:40 test.ctf.strip-l
-rwxr-xr-x   1 root     root       11320 Oct  3 14:40 test.ctf.strip-x

stripped:

        Argument Types
                None

stripped -l:

        Argument Types
                args[0]: (unknown)

stripped -x:

        Argument Types
                args[0]: (unknown)

gstrip

Trying to enable every option to retain information still results in unusable file:

$ gstrip -v -D -p --no-merge-notes --keep-file-symbols --keep-section-symbols -w --keep-section=* --keep-symbol=* -o test.ctf-gstrip test.ctf

$ ls -l test.ctf test.ctf-gstrip
-rwxr-xr-x   1 root     root       13128 Oct  3 14:16 test.ctf
-rwxr-xr-x   1 root     root       13088 Oct  3 14:16 test.ctf-gstrip

$ dtrace -lvn 'pid$target:a.out:foo:entry' -c ./test.ctf-gstrip
   ID   PROVIDER            MODULE                          FUNCTION NAME
74704   pid75093   test.ctf-gstrip                               foo entry
[...]
        Argument Types
                None