Add "objfile" parameter to two partial_symtab methods

This series will cause partial symtabs to be shared across objfiles.
However, full symtabs and symbols will still be objfile-dependent, so
will be expanded separately for each objfile.  So, a debug info reader
will need to know which objfile to consult when expanding a partial
symtab.

This patch adds an objfile parameter to the two relevant methods of
partial_symtab.  Current implementations simply ignore them.

gdb/ChangeLog:

	* psymtab.c (partial_map_expand_apply)
	(psym_find_pc_sect_compunit_symtab, psym_lookup_symbol)
	(psym_lookup_global_symbol_language)
	(psymtab_to_symtab, psym_find_last_source_symtab, dump_psymtab)
	(psym_print_stats, psym_expand_symtabs_for_function)
	(psym_map_symbol_filenames, psym_map_matching_symbols)
	(psym_expand_symtabs_matching)
	(partial_symtab::read_dependencies, maintenance_info_psymtabs)
	(maintenance_check_psymtabs): Update.
	* psympriv.h (struct partial_symtab) <readin_p,
	get_compunit_symtab>: Add objfile parameter.
	(struct standard_psymtab) <readin_p, get_compunit_symtab>:
	Likewise.
	* dwarf2/read.c (struct dwarf2_include_psymtab) <readin_p,
	get_compunit_symtab>: Likewise.
	(dwarf2_psymtab::expand_psymtab): Pass objfile argument.

Change-Id: I3f0b26787c3e78f7fb78b9fc011d91fb8690f3a0

1 files changed, 10 insertions, 9 deletions

diff --git a/gdb/psympriv.h b/gdb/psympriv.h
index 6f0307e..4622be3 100644
--- a/gdb/psympriv.h
+++ b/gdb/psympriv.h
@@ -147,13 +147,16 @@ struct partial_symtab
   void expand_dependencies (struct objfile *);
 
   /* Return true if the symtab corresponding to this psymtab has been
-     readin.  */
-  virtual bool readin_p () const = 0;
+     read in in the context of this objfile.  */
+  virtual bool readin_p (struct objfile *) const = 0;
 
-  /* Return a pointer to the compunit allocated for this source file.
-     Return nullptr if !readin or if there was no symtab.  */
-  virtual struct compunit_symtab *get_compunit_symtab () const = 0;
+  /* Return a pointer to the compunit allocated for this source file
+     in the context of this objfile.
 
+     Return nullptr if the compunit was not read in or if there was no
+     symtab.  */
+  virtual struct compunit_symtab *get_compunit_symtab
+    (struct objfile *) const = 0;
 
   /* Return the raw low text address of this partial_symtab.  */
   CORE_ADDR raw_text_low () const
@@ -319,14 +322,12 @@ struct standard_psymtab : public partial_symtab
   {
   }
 
-  bool readin_p () const override
+  bool readin_p (struct objfile *) const override
   {
     return readin;
   }
 
-  /* Return a pointer to the compunit allocated for this source file.
-     Return nullptr if !readin or if there was no symtab.  */
-  struct compunit_symtab *get_compunit_symtab () const override
+  struct compunit_symtab *get_compunit_symtab (struct objfile *) const override
   {
     return compunit_symtab;
   }