how create a shared library? about ldc HOT 6 CLOSED

with gcc it works:

$ gcc  -Dlphobos2_EXPORTS -DDMDV2 -DIN_LLVM -D_DH -DOPAQUE_VTBLS -DPOSIX -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic  -fPIC -shared *.o -o liblocalization.so

with llvm-ld

llvm-ld -o localization.so -L/usr/lib64/ -llphobos2 -lm -ldl -lrt localization.o  -soname=localization.so

llvm-ar exist too never used

from ldc.

Does this need druntime & rc lib building with PIC ?

from ldc.

you can try it is the better thing :-) .
What you want to do?

from ldc.

if is a lib you need use flag: -link-as-library

from ldc.

just for update this topic, for generate a shared lib with llvm-ld they are several step:
In first generate llvm bytecode with --output-bc flag

$ ldc2 --output-bc --output-o  -op -release -c -relocation-model=pic  -od=../build *.d

llvm bytecode finish with .bc and are in ../build directory

$ cd ../build

Merge llvm bytecode together in one

$ lvm-ld -link-as-library -o libDparser.bc -L/usr/local/lib64/ -L/usr/lib64 -ldruntime-ldc -llphobos2 -lm -ldl -lrt -soname=Dparser *.bc

run llc

$ llc -relocation-model=pic libDparser.bc

End the process by build shared lib

$ gcc -shared libDparser.s -o libDparser.so

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LDC now has a -shared flag.

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