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Add link option to allow undefiedn symbols in shared libraries

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Nick Clifton 2000-12-12 20:53:02 +00:00
parent 533245522d
commit b15ced2271
2 changed files with 20 additions and 0 deletions
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7
include/ChangeLog
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@ -1,3 +1,10 @@
2000-12-10 Fred Fish <fnf@be.com>
* bfdlink.h (struct bfd_link_info): Add new allow_shlib_undefined
member to struct for systems where it is normal to have undefined
symbols in shared libraries at runtime and the runtime linker takes
care of redirecting them.
2000-12-07 Zack Weinberg <zack@wolery.stanford.edu> 2000-12-07 Zack Weinberg <zack@wolery.stanford.edu>
* safe-ctype.h: New file. * safe-ctype.h: New file.

13
include/bfdlink.h
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@ -201,6 +201,19 @@ struct bfd_link_info
/* true if BFD should generate errors for undefined symbols /* true if BFD should generate errors for undefined symbols
even if generating a shared object. */ even if generating a shared object. */
boolean no_undefined; boolean no_undefined;
/* true if BFD should allow undefined symbols in shared objects even
when no_undefined is set to disallow undefined symbols. The net
result will be that undefined symbols in regular objects will
still trigger an error, but undefined symbols in shared objects
will be ignored. The implementation of no_undefined makes the
assumption that the runtime linker will choke on undefined
symbols. However there is at least one system (BeOS) where
undefined symbols in shared libraries is normal since the kernel
patches them at load time to select which function is most
appropriate for the current architecture. I.E. dynamically
select an appropriate memset function. Apparently it is also
normal for HPPA shared libraries to have undefined symbols. */
boolean allow_shlib_undefined;
/* Which symbols to strip. */ /* Which symbols to strip. */
enum bfd_link_strip strip; enum bfd_link_strip strip;
/* Which local symbols to discard. */ /* Which local symbols to discard. */