Revert the previous 7 commits of: Validate binary before use

ddc98fbf2fd9e244a215a4d09e559180dc573a14 Create empty nat/linux-maps.[ch] and common/target-utils.[ch]
6e5b4429db0d66e2d0b27e1bcfe4709f3dae73ed Move gdb_regex* to common/
f7af1fcd759fa126612018a5916cf808df7bb8bc Prepare linux_find_memory_regions_full & co. for move
9904185cfde13d6c6849f1f042c8e3b74974cf08 Move linux_find_memory_regions_full & co.
700ca40f6fc1addd7238f4ab57f76c095ad3c99f gdbserver build-id attribute generator
ca5268b6be265580b91ef75c1a1a9815f581ae42 Validate symbol file using build-id
0a94970d663a053c523f23ac0d71deb25a77f709 Tests for validate symbol file using build-id

gdb/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Revert the previous 6 commits:
	Create empty nat/linux-maps.[ch] and common/target-utils.[ch].
	Move gdb_regex* to common/
	Prepare linux_find_memory_regions_full & co. for move
	Move linux_find_memory_regions_full & co.
	gdbserver build-id attribute generator
	Validate symbol file using build-id

gdb/gdbserver/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Revert the previous 3 commits:
	Move gdb_regex* to common/
	Move linux_find_memory_regions_full & co.
	gdbserver build-id attribute generator

gdb/doc/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Revert the previous 2 commits:
	gdbserver build-id attribute generator
	Validate symbol file using build-id

gdb/testsuite/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Revert the previous commit:
	Tests for validate symbol file using build-id.

1 files changed, 1 insertions, 63 deletions

diff --git a/gdb/solib.c b/gdb/solib.c
index 01c66dba8e..eb933c044d 100644
--- a/gdb/solib.c
+++ b/gdb/solib.c
@@ -518,20 +518,6 @@ solib_bfd_open (char *pathname)
   return abfd;
 }
 
-/* Boolean for command 'set validate-build-id'.  */
-static int validate_build_id = 1;
-
-/* Implement 'show validate-build-id'.  */
-
-static void
-show_validate_build_id (struct ui_file *file, int from_tty,
-			struct cmd_list_element *c, const char *value)
-{
-  fprintf_filtered (file, _("Validation a build-id matches to load a shared "
-			    "library is %s.\n"),
-		    value);
-}
-
 /* Given a pointer to one of the shared objects in our list of mapped
    objects, use the recorded name to open a bfd descriptor for the
    object, build a section table, relocate all the section addresses
@@ -548,7 +534,7 @@ static int
 solib_map_sections (struct so_list *so)
 {
   const struct target_so_ops *ops = solib_ops (target_gdbarch ());
-  char *filename, *validate_error;
+  char *filename;
   struct target_section *p;
   struct cleanup *old_chain;
   bfd *abfd;
@@ -564,29 +550,6 @@ solib_map_sections (struct so_list *so)
   /* Leave bfd open, core_xfer_memory and "info files" need it.  */
   so->abfd = abfd;
 
-  gdb_assert (ops->validate != NULL);
-
-  validate_error = ops->validate (so);
-  if (validate_error != NULL)
-    {
-      if (validate_build_id)
-	{
-	  warning (_("Shared object \"%s\" could not be validated (%s) and "
-	             "will be ignored; "
-		     "or use 'set validate-build-id off'."),
-		   so->so_name, validate_error);
-	  xfree (validate_error);
-	  gdb_bfd_unref (so->abfd);
-	  so->abfd = NULL;
-	  return 0;
-	}
-      warning (_("Shared object \"%s\" could not be validated (%s) "
-		 "but it is being loaded due to "
-		 "'set validate-build-id off'."),
-	       so->so_name, validate_error);
-      xfree (validate_error);
-    }
-
   /* Copy the full path name into so_name, allowing symbol_file_add
      to find it later.  This also affects the =library-loaded GDB/MI
      event, and in particular the part of that notification providing
@@ -663,9 +626,6 @@ clear_so (struct so_list *so)
      of the symbol file.  */
   strcpy (so->so_name, so->so_original_name);
 
-  xfree (so->build_id);
-  so->build_id = NULL;
-
   /* Do the same for target-specific data.  */
   if (ops->clear_so != NULL)
     ops->clear_so (so);
@@ -1697,14 +1657,6 @@ remove_user_added_objfile (struct objfile *objfile)
     }
 }
 
-/* Default implementation does not perform any validation.  */
-
-char *
-default_solib_validate (const struct so_list *const so)
-{
-  return NULL; /* No validation.  */
-}
-
 extern initialize_file_ftype _initialize_solib; /* -Wmissing-prototypes */
 
 void
@@ -1762,18 +1714,4 @@ PATH and LD_LIBRARY_PATH."),
 				     reload_shared_libraries,
 				     show_solib_search_path,
 				     &setlist, &showlist);
-
-  add_setshow_boolean_cmd ("validate-build-id", class_support,
-			   &validate_build_id, _("\
-Set validation a build-id matches to load a shared library."), _("\
-SHow validation a build-id matches to load a shared library."), _("\
-Inferior shared library and symbol file may contain unique build-id.\n\
-If both build-ids are present but they do not match then this setting\n\
-enables (off) or disables (on) loading of such symbol file.\n\
-Loading non-matching symbol file may confuse debugging including breakage\n\
-of backtrace output."),
-			   NULL,
-			   show_validate_build_id,
-			   &setlist, &showlist);
-
 }