-Bsymbolic is broken in ld

-Bsymbolic is broken in ld

[H J Lu]

Hi,

I think -Bsymbolic in ld is broken. It doesn't work in most cases.
May I suggest one approach?

1. Remove all the old -Bsymbolic stuff, except for setting DT_SYMBOLIC.
2. Add the BSF_SYMBOLIC bit to the symbol flag in addition to
   BSF_GLOBAL, BSF_WEAK, BSF_LOCAL, ...
3. If the BSF_SYMBOLIC bit is set, the symbol is treated just
   like a local symbol.
3. When writing to the disk, clear the BSF_SYMBOLIC bit.

Ian, Eric, will that work? I really like to see -Bsymbolic get fixed.

Thanks a lot.

-- 
H.J. Lu (hjl@gnu.ai.mit.edu)

Re: -Bsymbolic is broken in ld

[Ian Lance Taylor]

   From: H J Lu <hjl@zoom.com>
   Date: Mon, 29 Jan 1996 08:32:24 -0800 (PST)

   I think -Bsymbolic in ld is broken. It doesn't work in most cases.

I just checked in a patch which fixes the case I know of, namely the
problem you sent me.  Please let me know if there are any other
problems.

   May I suggest one approach?

   1. Remove all the old -Bsymbolic stuff, except for setting DT_SYMBOLIC.
   2. Add the BSF_SYMBOLIC bit to the symbol flag in addition to
      BSF_GLOBAL, BSF_WEAK, BSF_LOCAL, ...
   3. If the BSF_SYMBOLIC bit is set, the symbol is treated just
      like a local symbol.
   3. When writing to the disk, clear the BSF_SYMBOLIC bit.

   Ian, Eric, will that work? I really like to see -Bsymbolic get fixed.

This is more complex than the current approach.  The trick is in step
3, in knowing when to treat the symbol as local and when to treat it
as global.  When you have determined that, it is just as easy to
simply check whether the -Bsymbolic flag was specified as it is to see
whether the BSF_SYMBOLIC flag was set for the symbol.

Ian