WIP: PackLinuxElf64::unpack working for shared libraries (non-Android)

modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
	modified:   p_unix.cpp

src/p_lx_elf.h

@@ -271,6 +271,7 @@ protected:
     virtual void unpack(OutputFile *fo);
     virtual void un_shlib_1(
         OutputFile *const fo,
+        Elf64_Phdr *const phdro,
         unsigned &c_adler,
         unsigned &u_adler,
         Elf64_Phdr const *const dynhdr,
@@ -278,9 +279,9 @@ protected:
         unsigned const szb_info
     );
     virtual void un_DT_INIT(
-        Elf64_Phdr const *phdr,
-        unsigned u_phnum,
         unsigned old_dtinit,
+        Elf64_Phdr const *phdro,
+        Elf64_Phdr const *dynhdr,  // in phdri
         OutputFile *fo,
         unsigned is_asl
     );