unstrip: exit early if there are no sections in the stripped file

If there is only section zero that shouldn't count. Then we would
still try to work on an empty set of sections and give an obscure
error later.

    * src/unstrip.c (copy_elided_sections): Check stripped_shnum <= 1.

Signed-off-by: Mark Wielaard <mark@klomp.org>

diff --git a/src/unstrip.c b/src/unstrip.c
index 0ae76f77e9ae86aefa91ce6d991587a298a58213..81c5496f43a0214ff722c4f43231099a169a871d 100644 (file)
--- a/src/unstrip.c
+++ b/src/unstrip.c
@@ -1447,7 +1447,7 @@ copy_elided_sections (Elf *unstripped, Elf *stripped,
     error_exit (0, _("\
 more sections in stripped file than debug file -- arguments reversed?"));
 
-  if (unlikely (stripped_shnum == 0))
+  if (unlikely (stripped_shnum <= 1))
     error_exit (0, _("no sections in stripped file"));
 
   /* Used as sanity check for allocated section offset, if the section