text relocations in shared objects?

when I compile the following code (file named d.c) using gcc

int var=10;

void fun( void ) {
  var++;
  int a=var;
}

with

gcc -c -o d.o -fPIC d.c 

and call readelf -S there is a reloction section called .rela.text for the .text section

if I link the file to a shared object (reloctest.so) with

gcc  -shared d.o -o reloctest.so 

the relocation section vanishes

Is it guaranteed that there are no relocation for the .text segment in 开发者_运维百科shared objects? I think yes (due to relocations were added for PLT and DYN) but I'm not sure

Thanks for any answers

Basically yes.

If you want to fully understand it you should read understanding elf.