* gas/mips/mips.exp (run_dump_test_arch): Check for the presence

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

diff --git a/gdb/symfile.c b/gdb/symfile.c
index 2cb6b7f2fcbd67777c16840df85a380011d28d88..f1c2941d3945fa3481a6737869687fa98a577b00 100644 (file)
--- a/gdb/symfile.c
+++ b/gdb/symfile.c
@@ -102,7 +102,7 @@ bfd *symfile_bfd_open (char *);
 
 int get_section_index (struct objfile *, char *);
 
-static struct sym_fns *find_sym_fns (bfd *);
+static const struct sym_fns *find_sym_fns (bfd *);
 
 static void decrement_reading_symtab (void *);
 
@@ -147,7 +147,10 @@ void _initialize_symfile (void);
    calls add_symtab_fns() to register information on each format it is
    prepared to read. */
 
-static struct sym_fns *symtab_fns = NULL;
+typedef const struct sym_fns *sym_fns_ptr;
+DEF_VEC_P (sym_fns_ptr);
+
+static VEC (sym_fns_ptr) *symtab_fns = NULL;
 
 /* Flag for whether user will be reloading symbols multiple times.
    Defaults to ON for VxWorks, otherwise OFF.  */
@@ -1035,7 +1038,7 @@ syms_from_objfile (struct objfile *objfile,
 
 /* Perform required actions after either reading in the initial
    symbols for a new objfile, or mapping in the symbols from a reusable
-   objfile. */
+   objfile.  ADD_FLAGS is a bitmask of enum symfile_add_flags.  */
 
 void
 new_symfile_objfile (struct objfile *objfile, int add_flags)
@@ -1048,7 +1051,7 @@ new_symfile_objfile (struct objfile *objfile, int add_flags)
       /* OK, make it the "real" symbol file.  */
       symfile_objfile = objfile;
 
-      clear_symtab_users ();
+      clear_symtab_users (add_flags);
     }
   else if ((add_flags & SYMFILE_DEFER_BP_RESET) == 0)
     {
@@ -1565,12 +1568,18 @@ symbol_file_command (char *args, int from_tty)
 void
 set_initial_language (void)
 {
-  const char *filename;
   enum language lang = language_unknown;
 
-  filename = find_main_filename ();
-  if (filename != NULL)
-    lang = deduce_language_from_filename (filename);
+  if (language_of_main != language_unknown)
+    lang = language_of_main;
+  else
+    {
+      const char *filename;
+      
+      filename = find_main_filename ();
+      if (filename != NULL)
+       lang = deduce_language_from_filename (filename);
+    }
 
   if (lang == language_unknown)
     {
@@ -1702,10 +1711,9 @@ get_section_index (struct objfile *objfile, char *section_name)
    handle. */
 
 void
-add_symtab_fns (struct sym_fns *sf)
+add_symtab_fns (const struct sym_fns *sf)
 {
-  sf->next = symtab_fns;
-  symtab_fns = sf;
+  VEC_safe_push (sym_fns_ptr, symtab_fns, sf);
 }
 
 /* Initialize OBJFILE to read symbols from its associated BFD.  It
@@ -1713,18 +1721,19 @@ add_symtab_fns (struct sym_fns *sf)
    struct sym_fns in the objfile structure, that contains cached
    information about the symbol file.  */
 
-static struct sym_fns *
+static const struct sym_fns *
 find_sym_fns (bfd *abfd)
 {
-  struct sym_fns *sf;
+  const struct sym_fns *sf;
   enum bfd_flavour our_flavour = bfd_get_flavour (abfd);
+  int i;
 
   if (our_flavour == bfd_target_srec_flavour
       || our_flavour == bfd_target_ihex_flavour
       || our_flavour == bfd_target_tekhex_flavour)
     return NULL;       /* No symbols.  */
 
-  for (sf = symtab_fns; sf != NULL; sf = sf->next)
+  for (i = 0; VEC_iterate (sym_fns_ptr, symtab_fns, i, sf); ++i)
     if (our_flavour == sf->sym_flavour)
       return sf;
 
@@ -2431,12 +2440,12 @@ reread_symbols (void)
                  sizeof (objfile->static_psymbols));
 
          /* Free the obstacks for non-reusable objfiles */
-         bcache_xfree (objfile->psymbol_cache);
-         objfile->psymbol_cache = bcache_xmalloc ();
+         psymbol_bcache_free (objfile->psymbol_cache);
+         objfile->psymbol_cache = psymbol_bcache_init ();
          bcache_xfree (objfile->macro_cache);
-         objfile->macro_cache = bcache_xmalloc ();
+         objfile->macro_cache = bcache_xmalloc (NULL, NULL);
          bcache_xfree (objfile->filename_cache);
-         objfile->filename_cache = bcache_xmalloc ();
+         objfile->filename_cache = bcache_xmalloc (NULL,NULL);
          if (objfile->demangled_names_hash != NULL)
            {
              htab_delete (objfile->demangled_names_hash);
@@ -2458,9 +2467,9 @@ reread_symbols (void)
          memset (&objfile->msymbol_demangled_hash, 0,
                  sizeof (objfile->msymbol_demangled_hash));
 
-         objfile->psymbol_cache = bcache_xmalloc ();
-         objfile->macro_cache = bcache_xmalloc ();
-         objfile->filename_cache = bcache_xmalloc ();
+         objfile->psymbol_cache = psymbol_bcache_init ();
+         objfile->macro_cache = bcache_xmalloc (NULL, NULL);
+         objfile->filename_cache = bcache_xmalloc (NULL, NULL);
          /* obstack_init also initializes the obstack so it is
             empty.  We could use obstack_specify_allocation but
             gdb_obstack.h specifies the alloc/dealloc
@@ -2527,7 +2536,7 @@ reread_symbols (void)
       /* Notify objfiles that we've modified objfile sections.  */
       objfiles_changed ();
 
-      clear_symtab_users ();
+      clear_symtab_users (0);
       /* At least one objfile has changed, so we can consider that
          the executable we're debugging has changed too.  */
       observer_notify_executable_changed ();
@@ -2721,7 +2730,7 @@ deduce_language_from_filename (const char *filename)
  */
 
 struct symtab *
-allocate_symtab (char *filename, struct objfile *objfile)
+allocate_symtab (const char *filename, struct objfile *objfile)
 {
   struct symtab *symtab;
 
@@ -2745,10 +2754,10 @@ allocate_symtab (char *filename, struct objfile *objfile)
 \f
 
 /* Reset all data structures in gdb which may contain references to symbol
-   table data.  */
+   table data.  ADD_FLAGS is a bitmask of enum symfile_add_flags.  */
 
 void
-clear_symtab_users (void)
+clear_symtab_users (int add_flags)
 {
   /* Someday, we should do better than this, by only blowing away
      the things that really need to be blown.  */
@@ -2758,7 +2767,8 @@ clear_symtab_users (void)
   clear_current_source_symtab_and_line ();
 
   clear_displays ();
-  breakpoint_re_set ();
+  if ((add_flags & SYMFILE_DEFER_BP_RESET) == 0)
+    breakpoint_re_set ();
   set_default_breakpoint (0, NULL, 0, 0, 0);
   clear_pc_function_cache ();
   observer_notify_new_objfile (NULL);
@@ -2777,7 +2787,7 @@ clear_symtab_users (void)
 static void
 clear_symtab_users_cleanup (void *ignore)
 {
-  clear_symtab_users ();
+  clear_symtab_users (0);
 }
 \f
 /* OVERLAYS:
@@ -3587,7 +3597,7 @@ symfile_relocate_debug_section (struct objfile *objfile,
 struct symfile_segment_data *
 get_symfile_segment_data (bfd *abfd)
 {
-  struct sym_fns *sf = find_sym_fns (abfd);
+  const struct sym_fns *sf = find_sym_fns (abfd);
 
   if (sf == NULL)
     return NULL;