Add dwarf2_per_objfile parameter to create_partial_symtab

This allows removing a dwarf2_per_cu_data::dwarf2_per_objfile reference.

gdb/ChangeLog:

	* dwarf2/read.c (create_partial_symtab): Add dwarf2_per_objfile
	parameter.
	(create_type_unit_group): Update.
	(process_psymtab_comp_unit_reader): Update.
	(build_type_psymtabs_reader): Update.

Change-Id: I72e3a8fce8022943ce6992fb623e05636cd0e3a5

2 files changed, 19 insertions, 7 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index e5f20d3..1308acd 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,13 @@
 2020-05-27  Simon Marchi  <simon.marchi@efficios.com>
 
+	* dwarf2/read.c (create_partial_symtab): Add dwarf2_per_objfile
+	parameter.
+	(create_type_unit_group): Update.
+	(process_psymtab_comp_unit_reader): Update.
+	(build_type_psymtabs_reader): Update.
+
+2020-05-27  Simon Marchi  <simon.marchi@efficios.com>
+
 	* dwarf2/read.c (cutu_reader::keep): Access dwarf2_per_objfile
 	object through m_this_cu->cu.
 
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
index d583030..3ca7772 100644
--- a/gdb/dwarf2/read.c
+++ b/gdb/dwarf2/read.c
@@ -1204,7 +1204,8 @@ static void dwarf2_find_base_address (struct die_info *die,
 				      struct dwarf2_cu *cu);
 
 static dwarf2_psymtab *create_partial_symtab
-  (struct dwarf2_per_cu_data *per_cu, const char *name);
+  (dwarf2_per_cu_data *per_cu, dwarf2_per_objfile *per_objfile,
+   const char *name);
 
 static void build_type_psymtabs_reader (const struct die_reader_specs *reader,
 					const gdb_byte *info_ptr,
@@ -7331,7 +7332,7 @@ create_type_unit_group (struct dwarf2_cu *cu, sect_offset line_offset_struct)
       else
 	name = string_printf ("<type_units_at_0x%x>", line_offset);
 
-      pst = create_partial_symtab (per_cu, name.c_str ());
+      pst = create_partial_symtab (per_cu, dwarf2_per_objfile, name.c_str ());
       pst->anonymous = true;
     }
 
@@ -7405,9 +7406,11 @@ get_type_unit_group (struct dwarf2_cu *cu, const struct attribute *stmt_list)
    dirname, textlow, texthigh.  */
 
 static dwarf2_psymtab *
-create_partial_symtab (struct dwarf2_per_cu_data *per_cu, const char *name)
+create_partial_symtab (dwarf2_per_cu_data *per_cu,
+		       dwarf2_per_objfile *per_objfile,
+		       const char *name)
 {
-  struct objfile *objfile = per_cu->dwarf2_per_objfile->objfile;
+  struct objfile *objfile = per_objfile->objfile;
   dwarf2_psymtab *pst;
 
   pst = new dwarf2_psymtab (name, objfile, per_cu);
@@ -7429,7 +7432,8 @@ process_psymtab_comp_unit_reader (const struct die_reader_specs *reader,
 				  enum language pretend_language)
 {
   struct dwarf2_cu *cu = reader->cu;
-  struct objfile *objfile = cu->per_objfile->objfile;
+  dwarf2_per_objfile *per_objfile = cu->per_objfile;
+  struct objfile *objfile = per_objfile->objfile;
   struct gdbarch *gdbarch = objfile->arch ();
   struct dwarf2_per_cu_data *per_cu = cu->per_cu;
   CORE_ADDR baseaddr;
@@ -7456,7 +7460,7 @@ process_psymtab_comp_unit_reader (const struct die_reader_specs *reader,
       filename = debug_filename.get ();
     }
 
-  pst = create_partial_symtab (per_cu, filename);
+  pst = create_partial_symtab (per_cu, per_objfile, filename);
 
   /* This must be done before calling dwarf2_build_include_psymtabs.  */
   pst->dirname = dwarf2_string_attr (comp_unit_die, DW_AT_comp_dir, cu);
@@ -7637,7 +7641,7 @@ build_type_psymtabs_reader (const struct die_reader_specs *reader,
   tu_group->tus->push_back (sig_type);
 
   prepare_one_comp_unit (cu, type_unit_die, language_minimal);
-  pst = create_partial_symtab (per_cu, "");
+  pst = create_partial_symtab (per_cu, dwarf2_per_objfile, "");
   pst->anonymous = true;
 
   first_die = load_partial_dies (reader, info_ptr, 1);