fix: amd64, offset read error issue for PIE executable.

On amd64, when the executable program in PIE format compiled by golang reads the return instruction of the function, the start address of inst is incorrect, resulting in an exception, see PR #516 for details.

Signed-off-by: CFC4N <cfc4n.cs@gmail.com>

user/config/config_gotls.go

@@ -340,7 +340,7 @@ func (gc *GoTLSConfig) findRetOffsetsPie(lfunc string) ([]int, error) {
 			continue
 		}
 		data := make([]byte, funcLen)
-		_, err = prog.ReadAt(data, int64(address))
+		_, err = prog.ReadAt(data, int64(address-prog.Vaddr))
 		if err != nil {
 			return offsets, fmt.Errorf("finding function return: %w", err)
 		}