/usr/share/fpcsrc/2.6.2/rtl/freebsd/ is in fpc-source-2.6.2 2.6.2-8.
This file is owned by root:root, with mode 0o755.
..
/usr/share/fpcsrc/2.6.2/rtl/freebsd/Makefile.fpc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/buildrtl.pp
/usr/share/fpcsrc/2.6.2/rtl/freebsd/console.pp
/usr/share/fpcsrc/2.6.2/rtl/freebsd/errno.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/errnostr.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/freebsd.pas
/usr/share/fpcsrc/2.6.2/rtl/freebsd/i386/
/usr/share/fpcsrc/2.6.2/rtl/freebsd/i386/bsyscall.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/i386/si_crt.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/i386/si_prc.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/i386/sighnd.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/i386/x86.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/i386/x86h.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/pmutext.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/pthread.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/ptypes.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/si_crt.pp
/usr/share/fpcsrc/2.6.2/rtl/freebsd/si_intf.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/signal.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/sysctlh.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/sysnr.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/termio.pp
/usr/share/fpcsrc/2.6.2/rtl/freebsd/termios.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/termiosproc.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/ucontexth.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/unixsock.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/unxconst.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/unxfunc.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/unxsockh.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/unxsysc.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/x86_64/
/usr/share/fpcsrc/2.6.2/rtl/freebsd/x86_64/bsyscall.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/x86_64/si_c.inc
/usr/share/fpcsrc/2.6.2/rtl/freebsd/x86_64/sighnd.inc