Thanks for the clarification. One other question. Is there
anyway to detect
if non-PIC code exists in a shared library? I recall some
discussion of doing this
for Linux...
It would be handy if something like this were possible on Darwin.
Specifically
we could add such checks to 'fink validate' to verify that shared
libs haven't
been built with non-PIC code.
It should be perfectly possibly to build working dynamic libraries
without using PIC code. The only difference should be that such
libraries cannot be shared among processes (i.e., each process has to
load its own copy of the library). From the ld man page:
-read_only_relocs treatment
Specifies how relocation entries in read-only sections
are to be
treated when -dynamic is used. To get the best
possible shar-
ing, the read-only sections should not have any
relocation
entries. [..]
Then again, maybe -fPIC does more than just preventing relocation
entries in text or other read-only sections (but if it does, I'd be
interested in knowing what, since I work on a compiler too and I'd
like to avoid having this crashing problem in the code we generate).
Jonas
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