libc - How to create a shared library (.so) having two functions with the same name -

i first compiled 2 object files (.o) :

• string-memcpy.o
• machine-memcpy.o

they both define function memcpy(). now, want create shared library (.so) :

gcc -shared -o test.so string-memcpy.o machine-memcpy.o 

this fails due "multiple definition of memcpy". there way ? thank you!

in fact encounter problem when trying compile shared library libc (newlib-1.16). can find on internet how build static library it. hint on how achieve appreciated.

a static library '.ar' file (a primitive predecessor tar) containing .o files . nothing involved in process knows or cares whether there symbol conflicts. if multiple .o files in .ar file contain same symbol, linker pick first 1 sees. if later tries use other .o file satisfy symbol, you'll error.

a shared lib, on other hand, linker output, , linker not willing create files duplicate symbol names.

there complex options ld might allow work around this, might make problems worse.