On Thursday, 15 November 2012 at 02:51:08 UTC, Ellery Newcomer
wrote:
Just tried building a shared library on linux with dmd (and
calling it from C).
It works! Holy crap, it even runs my static constructors and
unittests! I only had to screw with the linking process a
little bit!
It doesn't work for x64, though. Gives me
/usr/bin/ld: /usr/lib64/dmd/libphobos2.a(object__c_58c.o):
relocation R_X86_64_32 against `_D10TypeInfo_m6__initZ' can not
be used when making a shared object; recompile with -fPIC
/usr/lib64/dmd/libphobos2.a: could not read symbols: Bad value
collect2: ld returned 1 exit status
--- errorlevel 1
Though why it doesn't do this for x32 is beyond me. Those
object files don't appear to be -fPIC either.
You can dynamically link to D shared libraries on linux
(http://forum.dlang.org/thread/k3vfm9$1tq$1...@digitalmars.com?page=2).
The message you receive actually means that you cannot make a
shared library from current version of Phobos and Druntime due to
how they are compiled. However I saw several people working on
making druntime shared. The solution is not to put druntime in
.so file.
I tried to investigate which features do not work with dynamic
linking (not loading) and found certainly one - it is related to
not invoking scope(XXX) statements at some circumstances.
