[PATCH 4/6] Simplify add_target_sections_of_objfile

[Tom Tromey <tom@tromey.com>]

Now that target_section_table uses std::vector,
add_target_sections_of_objfile does not need to loop twice.  This
patch simplifies this code to have just a single loop.  Also, the
passed-in objfile can never be NULL, so this changes this function to
assert that.

2020-10-03  Tom Tromey  <tom@tromey.com>

	* exec.c (add_target_sections_of_objfile): Simplify.
---
 gdb/ChangeLog |  4 ++++
 gdb/exec.c    | 14 +-------------
 2 files changed, 5 insertions(+), 13 deletions(-)

diff --git a/gdb/exec.c b/gdb/exec.c
index d4b9b7bcf65..43385fe978f 100644
--- a/gdb/exec.c
+++ b/gdb/exec.c
@@ -661,22 +661,10 @@ add_target_sections_of_objfile (struct objfile *objfile)
 {
   struct target_section_table *table = current_target_sections;
   struct obj_section *osect;
-  unsigned count = 0;
 
-  if (objfile == NULL)
-    return;
+  gdb_assert (objfile != nullptr);
 
   /* Compute the number of sections to add.  */
-  ALL_OBJFILE_OSECTIONS (objfile, osect)
-    {
-      if (bfd_section_size (osect->the_bfd_section) == 0)
-	continue;
-      count++;
-    }
-
-  if (count == 0)
-    return;
-
   ALL_OBJFILE_OSECTIONS (objfile, osect)
     {
       if (bfd_section_size (osect->the_bfd_section) == 0)
-- 
2.17.2