karl@mote.umb.edu ("Karl Berry.") (01/21/89)
This is on a Sun 3 running 3.4, but I don't think it matters. Apparently by design, ld does not print undefined references in libraries. (The first if in the for loop in `each_full_file'. I know `each_full_file' is used from several places, but the one that caused the trouble was the call in `do_warnings'. This is all with the December 7 (or whatever was on prep two days, I lost the date, unfortunately) version of ld, but the previous version had this problem also.) Here is what happened: I had an archive file which had been compiled with gcc 1.31. One of the files in it referenced __fixunsdfi, one of the routines in gnulib. I was happily compiling the program that uses this library with gcc 1.32, and when the compilation got to the load stage, all that happened was a blank line was printed. (No output was produced.) It wasn't hard to find that it was do_warnings that was printing the blank line, and that I had an undefined global symbol, but I could not figure out where it was. Although if I ran into this problem again, I could solve it much faster (do an ld -r, find the undefined reference, then use -y<symbol> to find where it's used), things would have been considerably simpler if ld had simply looked through all the files, including libraries, for undefined references. Or at least printed out something about a global symbol is undefined, but it doesn't know what it is. Karl. karl@umb.edu
zuhn@UMN-CS.CS.UMN.EDU ("david d [zoo] zuhn") (08/03/89)
I'm running a Sequent Symmetry with Dynix (3.0.12), and I am trying to bring up the binary utilities (tar file taken from prep 2 days ago). Everything seems to work except for ld: M_386 and NMAGIC are both undefined in the final link. Where are these values supposed to come from? I've tried compiling with /bin/cc and with gcc (1.35) without any difference. Has anyone brought this up on a '386 Sequent before, and willing to give some advice? -- David D "Zoo" Zuhn // University of Minnesota \\ Twin Cities Computer Science Systems Consultant, EE/CS 4-204 zuhn@umn-cs.cs.umn.edu, zuhn@umn-cs.UUCP, ..rutgers!umn-cs!zuhn
sifakis@UUNET.UU.NET (George Sifakis) (01/06/90)
I have being failing for some time to make 'ld' run on a SPARC and produce output which will run on a MC68020. Any hints/suggestions on how to do this, would be greatly appreciated. Thanks George Sifakis ACUSON 11365 Shorebird Mtn. View, CA 94043 (415)969-9112 x2365 uunet!hombre!sun!sono!sifakis