Steve Gonczi wrote: > Here is another, interesting wrinkle: > > Looking at /usr/bin and /usr/sbin, I notice that a whole bunch of seemingly > unrelated > utilities appear to be just hard links to a shared file. ( ls -il reveals a > shared > inode number, same size, and the same link count to groups of them). > > I am guessing that some groups of these utilities go through common front end > code, > that then dispatches to the correct bits based on argv0. Could someone > confirm this? > > This would explain why recompiling ztest and zdb and copying the new bits > into /usr/bin > and /usr/sbin respectively resulted in a whole bunch of my utilities > "becoming zdb".
They are links to isaexec, which is a wrapper executable that runs the most appropriate version for the current machines. So zdb points to isaexec which then runs, for example, i86/zdb or amd64/zdb depending on the machine's architecture. -tim
