Change minimal_symbol_reader to store objfile

This changes minimal_symbol_reader to require the objfile to be
passed to the constructor.  The class now records the objfile and
automatically uses it later in "install".

This is a minor cleanup that will come in useful in the next patch.
It is separate from the first patch to keep that one a bit simpler to
understand.

2016-10-21  Tom Tromey  <tom@tromey.com>

	* xcoffread.c (xcoff_initial_scan): Update.
	* mipsread.c (mipscoff_symfile_read): Update.
	* minsyms.c (minimal_symbol_reader): Add obj argument.
	Initialize member.
	(install): Remove objfile argument.  Update.
	* mdebugread.c (elfmdebug_build_psymtabs): Update.
	* machoread.c (macho_symfile_read): Update.
	* elfread.c (elf_read_minimal_symbols): Update.
	* dbxread.c (dbx_symfile_read): Update.
	* coffread.c (coff_symfile_read): Update.
	* minsyms.h (minimal_symbol_reader): Add m_objfile member.
	(constructor): Add objfile argument.
	(minimal_symbol_reader::install): Remove objfile argument.

1 files changed, 4 insertions, 2 deletions

diff --git a/gdb/minsyms.h b/gdb/minsyms.h
index d75bd41..b83e2d0 100644
--- a/gdb/minsyms.h
+++ b/gdb/minsyms.h
@@ -64,14 +64,14 @@ class minimal_symbol_reader
      Currently, minimal symbol table creation is not reentrant; it
      relies on global (static) variables in minsyms.c.  */
 
-  explicit minimal_symbol_reader ();
+  explicit minimal_symbol_reader (struct objfile *);
 
   ~minimal_symbol_reader ();
 
   /* Install the minimal symbols that have been collected into the
      given objfile.  */
 
-  void install (struct objfile *);
+  void install ();
 
  private:
 
@@ -79,6 +79,8 @@ class minimal_symbol_reader
   minimal_symbol_reader &operator=
     (const minimal_symbol_reader &);
   minimal_symbol_reader (const minimal_symbol_reader &);
+
+  struct objfile *m_objfile;
 };
 
 /* Record a new minimal symbol.  This is the "full" entry point;