[SOL] sbfv2: place the rodata segment at MM_PROGRAM_START

With this _RELATIVE relocations can be ignored in the vm. Relocations are still
produced in case we change address space layout in the future.

Author: alessandrod

compiler/rustc_codegen_ssa/src/back/linker.rs

@@ -360,6 +360,10 @@ impl<'a> GccLinker<'a> {
                 } else {
                     self.linker_arg("--entry=entrypoint");
                 }
+                if self.sess.opts.cg.target_cpu.as_ref().unwrap_or(&self.sess.target.cpu) == "sbfv2"
+                {
+                    self.linker_arg("--section-start=.text=0x100000000");
+                }
             }
         }
     }