* configure.host: Change irix5 to irix[56]*.

[deliverable/binutils-gdb.git] / gdb / objfiles.h

diff --git a/gdb/objfiles.h b/gdb/objfiles.h
index a4b3d2cd99f4b206088a83898f6d42b8d0cdc5d0..b98b7088fe7e3d1f4d660353c2bdfc842619e260 100644 (file)
--- a/gdb/objfiles.h
+++ b/gdb/objfiles.h
@@ -1,5 +1,5 @@
 /* Definitions for symbol file management in GDB.
-   Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
+   Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
 
 This file is part of GDB.
 
@@ -15,7 +15,7 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #if !defined (OBJFILES_H)
 #define OBJFILES_H
@@ -156,6 +156,34 @@ struct obj_section {
   struct objfile *objfile;
 };
 
+/* The "objstats" structure provides a place for gdb to record some
+   interesting information about its internal state at runtime, on a
+   per objfile basis, such as information about the number of symbols
+   read, size of string table (if any), etc. */
+
+#if MAINTENANCE_CMDS
+
+struct objstats {
+  int n_minsyms;       /* Number of minimal symbols read */
+  int n_psyms;         /* Number of partial symbols read */
+  int n_syms;          /* Number of full symbols read */
+  int n_stabs;         /* Number of ".stabs" read (if applicable) */
+  int n_types;         /* Number of types */
+  int sz_strtab;       /* Size of stringtable, (if applicable) */
+};
+
+#define OBJSTAT(objfile, expr) (objfile -> stats.expr)
+#define OBJSTATS struct objstats stats
+extern void print_objfile_statistics PARAMS ((void));
+extern void print_symbol_bcache_statistics PARAMS ((void));
+
+#else
+
+#define OBJSTAT(objfile, expr) /* Nothing */
+#define OBJSTATS               /* Nothing */
+
+#endif /* MAINTENANCE_CMDS */
+
 /* Master structure for keeping track of each file from which
    gdb reads symbols.  There are several ways these get allocated: 1.
    The main symbol file, symfile_objfile, set by the symbol-file command,
@@ -208,8 +236,8 @@ struct objfile
 
   struct partial_symtab *free_psymtabs;
 
-  /* The object file's BFD.  Can be null, in which case bfd_open (name) and
-     put the result here.  */
+  /* The object file's BFD.  Can be null if the objfile contains only
+     minimal symbols, e.g. the run time common symbols for SunOS4.  */
 
   bfd *obfd;
 
@@ -225,6 +253,11 @@ struct objfile
   struct obstack symbol_obstack;       /* Full symbols */
   struct obstack type_obstack;         /* Types */
 
+  /* A byte cache where we can stash arbitrary "chunks" of bytes that
+     will not change. */
+
+  struct bcache psymbol_cache;         /* Byte cache for partial syms */
+
   /* Vectors of all partial symbols read in from file.  The actual data
      is stored in the psymbol_obstack. */
 
@@ -236,7 +269,7 @@ struct objfile
      by a "null symbol", one that has a NULL pointer for the name and a zero
      value for the address.  This makes it easy to walk through the array
      when passed a pointer to somewhere in the middle of it.  There is also
-     a count of the number of symbols, which does include the terminating
+     a count of the number of symbols, which does not include the terminating
      null symbol.  The array itself, as well as all the data that it points
      to, should be allocated on the symbol_obstack for this file. */
 
@@ -321,6 +354,9 @@ struct objfile
 
   /* two auxiliary fields, used to hold the fp of separate symbol files */
   FILE *auxf1, *auxf2;
+
+  /* Place to stash various statistics about this objfile */
+  OBJSTATS;
 };
 
 /* Defines for the objfile flag word. */
@@ -356,6 +392,11 @@ struct objfile
 
 extern struct objfile *symfile_objfile;
 
+/* The object file that contains the runtime common minimal symbols
+   for SunOS4. Note that this objfile has no associated BFD.  */
+
+extern struct objfile *rt_common_objfile;
+
 /* When we need to allocate a new type, we need to know which type_obstack
    to allocate the type on, since there is one for each objfile.  The places
    where types are allocated are deeply buried in function call hierarchies
@@ -384,6 +425,8 @@ allocate_objfile PARAMS ((bfd *, int));
 extern int
 build_objfile_section_table PARAMS ((struct objfile *));
 
+extern void objfile_to_front PARAMS ((struct objfile *));
+
 extern void
 unlink_objfile PARAMS ((struct objfile *));