2012-07-05 Hui Zhu <hui_zhu@mentor.com>

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

diff --git a/gdb/objfiles.c b/gdb/objfiles.c
index 229e6411101595335949d3f2e5166067d7778b80..f5e5c75b86f4f64acdc91eb6c8d3c90ab27a150c 100644 (file)
--- a/gdb/objfiles.c
+++ b/gdb/objfiles.c
@@ -1,8 +1,6 @@
 /* GDB routines for manipulating objfiles.
 
-   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-   2002, 2003, 2004, 2007, 2008, 2009, 2010, 2011
-   Free Software Foundation, Inc.
+   Copyright (C) 1992-2004, 2007-2012 Free Software Foundation, Inc.
 
    Contributed by Cygnus Support, using pieces from other GDB modules.
 
@@ -107,13 +105,6 @@ get_objfile_pspace_data (struct program_space *pspace)
   return info;
 }
 
-/* Records whether any objfiles appeared or disappeared since we last updated
-   address to obj section map.  */
-
-/* Locate all mappable sections of a BFD file.
-   objfile_p_char is a char * to get it through
-   bfd_map_over_sections; we cast it back to its proper type.  */
-
 /* Called via bfd_map_over_sections to build up the section table that
    the objfile references.  The objfile contains pointers to the start
    of the table (objfile->sections) and to the first location after
@@ -121,19 +112,18 @@ get_objfile_pspace_data (struct program_space *pspace)
 
 static void
 add_to_objfile_sections (struct bfd *abfd, struct bfd_section *asect,
-                        void *objfile_p_char)
+                        void *objfilep)
 {
-  struct objfile *objfile = (struct objfile *) objfile_p_char;
+  struct objfile *objfile = (struct objfile *) objfilep;
   struct obj_section section;
   flagword aflag;
 
   aflag = bfd_get_section_flags (abfd, asect);
-
   if (!(aflag & SEC_ALLOC))
     return;
-
-  if (0 == bfd_section_size (abfd, asect))
+  if (bfd_section_size (abfd, asect) == 0)
     return;
+
   section.objfile = objfile;
   section.the_bfd_section = asect;
   section.ovly_mapped = 0;
@@ -144,11 +134,9 @@ add_to_objfile_sections (struct bfd *abfd, struct bfd_section *asect,
 }
 
 /* Builds a section table for OBJFILE.
-   Returns 0 if OK, 1 on error (in which case bfd_error contains the
-   error).
 
    Note that while we are building the table, which goes into the
-   psymbol obstack, we hijack the sections_end pointer to instead hold
+   objfile obstack, we hijack the sections_end pointer to instead hold
    a count of the number of sections.  When bfd_map_over_sections
    returns, this count is used to compute the pointer to the end of
    the sections table, which then overwrites the count.
@@ -156,10 +144,10 @@ add_to_objfile_sections (struct bfd *abfd, struct bfd_section *asect,
    Also note that the OFFSET and OVLY_MAPPED in each table entry
    are initialized to zero.
 
-   Also note that if anything else writes to the psymbol obstack while
+   Also note that if anything else writes to the objfile obstack while
    we are building the table, we're pretty much hosed.  */
 
-int
+void
 build_objfile_section_table (struct objfile *objfile)
 {
   objfile->sections_end = 0;
@@ -167,7 +155,6 @@ build_objfile_section_table (struct objfile *objfile)
                         add_to_objfile_sections, (void *) objfile);
   objfile->sections = obstack_finish (&objfile->objfile_obstack);
   objfile->sections_end = objfile->sections + (size_t) objfile->sections_end;
-  return (0);
 }
 
 /* Given a pointer to an initialized bfd (ABFD) and some flag bits
@@ -218,12 +205,7 @@ allocate_objfile (bfd *abfd, int flags)
       objfile->mtime = bfd_get_mtime (abfd);
 
       /* Build section table.  */
-
-      if (build_objfile_section_table (objfile))
-       {
-         error (_("Can't find the file sections in `%s': %s"),
-                objfile->name, bfd_errmsg (bfd_get_error ()));
-       }
+      build_objfile_section_table (objfile);
     }
   else
     {
@@ -748,7 +730,9 @@ objfile_relocate1 (struct objfile *objfile,
          BLOCK_START (b) += ANOFFSET (delta, s->block_line_section);
          BLOCK_END (b) += ANOFFSET (delta, s->block_line_section);
 
-         ALL_BLOCK_SYMBOLS (b, iter, sym)
+         /* We only want to iterate over the local symbols, not any
+            symbols in included symtabs.  */
+         ALL_DICT_SYMBOLS (BLOCK_DICT (b), iter, sym)
            {
              relocate_one_symbol (sym, objfile, delta);
            }
@@ -813,6 +797,11 @@ objfile_relocate1 (struct objfile *objfile,
                                obj_section_addr (s));
     }
 
+  /* Relocating probes.  */
+  if (objfile->sf && objfile->sf->sym_probe_fns)
+    objfile->sf->sym_probe_fns->sym_relocate_probe (objfile,
+                                                   new_offsets, delta);
+
   /* Data changed.  */
   return 1;
 }
@@ -1536,6 +1525,31 @@ gdb_bfd_unref (struct bfd *abfd)
   xfree (name);
 }
 
+/* The default implementation for the "iterate_over_objfiles_in_search_order"
+   gdbarch method.  It is equivalent to use the ALL_OBJFILES macro,
+   searching the objfiles in the order they are stored internally,
+   ignoring CURRENT_OBJFILE.
+
+   On most platorms, it should be close enough to doing the best
+   we can without some knowledge specific to the architecture.  */
+
+void
+default_iterate_over_objfiles_in_search_order
+  (struct gdbarch *gdbarch,
+   iterate_over_objfiles_in_search_order_cb_ftype *cb,
+   void *cb_data, struct objfile *current_objfile)
+{
+  int stop = 0;
+  struct objfile *objfile;
+
+  ALL_OBJFILES (objfile)
+    {
+       stop = cb (objfile, cb_data);
+       if (stop)
+        return;
+    }
+}
+
 /* Provide a prototype to silence -Wmissing-prototypes.  */
 extern initialize_file_ftype _initialize_objfiles;