Fix "nosharedlibrary + continue + shared lib event" crash
[binutils-gdb.git] / gdb / symfile-debug.c
index a4beb337760fe6dcbf3a8837952339b7838d60c0..5b3ae926504e7b2548c5d587e48b0bcef5e7d2b9 100644 (file)
@@ -1,6 +1,6 @@
 /* Debug logging for the symbol file functions for the GNU debugger, GDB.
 
-   Copyright (C) 2013-2015 Free Software Foundation, Inc.
+   Copyright (C) 2013-2019 Free Software Foundation, Inc.
 
    Contributed by Cygnus Support, using pieces from other GDB modules.
 
@@ -28,7 +28,7 @@
 #include "defs.h"
 #include "gdbcmd.h"
 #include "objfiles.h"
-#include "observer.h"
+#include "observable.h"
 #include "source.h"
 #include "symtab.h"
 #include "symfile.h"
@@ -117,28 +117,23 @@ debug_qf_forget_cached_source_info (struct objfile *objfile)
   debug_data->real_sf->qf->forget_cached_source_info (objfile);
 }
 
-static int
-debug_qf_map_symtabs_matching_filename (struct objfile *objfile,
-                                       const char *name,
-                                       const char *real_path,
-                                       int (*callback) (struct symtab *,
-                                                        void *),
-                                       void *data)
+static bool
+debug_qf_map_symtabs_matching_filename
+  (struct objfile *objfile, const char *name, const char *real_path,
+   gdb::function_view<bool (symtab *)> callback)
 {
   const struct debug_sym_fns_data *debug_data
     = ((const struct debug_sym_fns_data *)
        objfile_data (objfile, symfile_debug_objfile_data_key));
-  int retval;
 
   fprintf_filtered (gdb_stdlog,
-                   "qf->map_symtabs_matching_filename (%s, \"%s\", \"%s\", %s, %s)\n",
+                   "qf->map_symtabs_matching_filename (%s, \"%s\", \"%s\", %s)\n",
                    objfile_debug_name (objfile), name,
                    real_path ? real_path : NULL,
-                   host_address_to_string (callback),
-                   host_address_to_string (data));
+                   host_address_to_string (&callback));
 
-  retval = debug_data->real_sf->qf->map_symtabs_matching_filename
-    (objfile, name, real_path, callback, data);
+  bool retval = (debug_data->real_sf->qf->map_symtabs_matching_filename
+                (objfile, name, real_path, callback));
 
   fprintf_filtered (gdb_stdlog,
                    "qf->map_symtabs_matching_filename (...) = %d\n",
@@ -198,23 +193,6 @@ debug_qf_dump (struct objfile *objfile)
   debug_data->real_sf->qf->dump (objfile);
 }
 
-static void
-debug_qf_relocate (struct objfile *objfile,
-                  const struct section_offsets *new_offsets,
-                  const struct section_offsets *delta)
-{
-  const struct debug_sym_fns_data *debug_data
-    = ((const struct debug_sym_fns_data *)
-       objfile_data (objfile, symfile_debug_objfile_data_key));
-
-  fprintf_filtered (gdb_stdlog, "qf->relocate (%s, %s, %s)\n",
-                   objfile_debug_name (objfile),
-                   host_address_to_string (new_offsets),
-                   host_address_to_string (delta));
-
-  debug_data->real_sf->qf->relocate (objfile, new_offsets, delta);
-}
-
 static void
 debug_qf_expand_symtabs_for_function (struct objfile *objfile,
                                      const char *func_name)
@@ -262,10 +240,10 @@ static void
 debug_qf_map_matching_symbols (struct objfile *objfile,
                               const char *name, domain_enum domain,
                               int global,
-                              int (*callback) (struct block *,
+                              int (*callback) (const struct block *,
                                                struct symbol *, void *),
                               void *data,
-                              symbol_compare_ftype *match,
+                              symbol_name_match_type match,
                               symbol_compare_ftype *ordered_compare)
 {
   const struct debug_sym_fns_data *debug_data
@@ -278,7 +256,7 @@ debug_qf_map_matching_symbols (struct objfile *objfile,
                    domain_name (domain), global,
                    host_address_to_string (callback),
                    host_address_to_string (data),
-                   host_address_to_string (match),
+                   plongest ((LONGEST) match),
                    host_address_to_string (ordered_compare));
 
   debug_data->real_sf->qf->map_matching_symbols (objfile, name,
@@ -291,29 +269,30 @@ debug_qf_map_matching_symbols (struct objfile *objfile,
 static void
 debug_qf_expand_symtabs_matching
   (struct objfile *objfile,
-   expand_symtabs_file_matcher_ftype *file_matcher,
-   expand_symtabs_symbol_matcher_ftype *symbol_matcher,
-   expand_symtabs_exp_notify_ftype *expansion_notify,
-   enum search_domain kind, void *data)
+   gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher,
+   const lookup_name_info &lookup_name,
+   gdb::function_view<expand_symtabs_symbol_matcher_ftype> symbol_matcher,
+   gdb::function_view<expand_symtabs_exp_notify_ftype> expansion_notify,
+   enum search_domain kind)
 {
   const struct debug_sym_fns_data *debug_data
     = ((const struct debug_sym_fns_data *)
        objfile_data (objfile, symfile_debug_objfile_data_key));
 
   fprintf_filtered (gdb_stdlog,
-                   "qf->expand_symtabs_matching (%s, %s, %s, %s, %s, %s)\n",
+                   "qf->expand_symtabs_matching (%s, %s, %s, %s, %s)\n",
                    objfile_debug_name (objfile),
-                   host_address_to_string (file_matcher),
-                   host_address_to_string (symbol_matcher),
-                   host_address_to_string (expansion_notify),
-                   search_domain_name (kind),
-                   host_address_to_string (data));
+                   host_address_to_string (&file_matcher),
+                   host_address_to_string (&symbol_matcher),
+                   host_address_to_string (&expansion_notify),
+                   search_domain_name (kind));
 
   debug_data->real_sf->qf->expand_symtabs_matching (objfile,
                                                    file_matcher,
+                                                   lookup_name,
                                                    symbol_matcher,
                                                    expansion_notify,
-                                                   kind, data);
+                                                   kind);
 }
 
 static struct compunit_symtab *
@@ -369,6 +348,33 @@ debug_qf_map_symbol_filenames (struct objfile *objfile,
                                                 need_fullname);
 }
 
+static struct compunit_symtab *
+debug_qf_find_compunit_symtab_by_address (struct objfile *objfile,
+                                         CORE_ADDR address)
+{
+  const struct debug_sym_fns_data *debug_data
+    = ((const struct debug_sym_fns_data *)
+       objfile_data (objfile, symfile_debug_objfile_data_key));
+  fprintf_filtered (gdb_stdlog,
+                   "qf->find_compunit_symtab_by_address (%s, %s)\n",
+                   objfile_debug_name (objfile),
+                   hex_string (address));
+
+  struct compunit_symtab *result = NULL;
+  if (debug_data->real_sf->qf->map_symbol_filenames != NULL)
+    result
+      = debug_data->real_sf->qf->find_compunit_symtab_by_address (objfile,
+                                                                 address);
+
+  fprintf_filtered (gdb_stdlog,
+                   "qf->find_compunit_symtab_by_address (...) = %s\n",
+                   result
+                   ? debug_symtab_name (compunit_primary_filetab (result))
+                   : "NULL");
+
+  return result;
+}
+
 static const struct quick_symbol_functions debug_sym_quick_functions =
 {
   debug_qf_has_symbols,
@@ -378,32 +384,32 @@ static const struct quick_symbol_functions debug_sym_quick_functions =
   debug_qf_lookup_symbol,
   debug_qf_print_stats,
   debug_qf_dump,
-  debug_qf_relocate,
   debug_qf_expand_symtabs_for_function,
   debug_qf_expand_all_symtabs,
   debug_qf_expand_symtabs_with_fullname,
   debug_qf_map_matching_symbols,
   debug_qf_expand_symtabs_matching,
   debug_qf_find_pc_sect_compunit_symtab,
+  debug_qf_find_compunit_symtab_by_address,
   debug_qf_map_symbol_filenames
 };
 \f
 /* Debugging version of struct sym_probe_fns.  */
 
-static VEC (probe_p) *
+static const std::vector<probe *> &
 debug_sym_get_probes (struct objfile *objfile)
 {
   const struct debug_sym_fns_data *debug_data
     = ((const struct debug_sym_fns_data *)
        objfile_data (objfile, symfile_debug_objfile_data_key));
-  VEC (probe_p) *retval;
 
-  retval = debug_data->real_sf->sym_probe_fns->sym_get_probes (objfile);
+  const std::vector<probe *> &retval
+    = debug_data->real_sf->sym_probe_fns->sym_get_probes (objfile);
 
   fprintf_filtered (gdb_stdlog,
                    "probes->sym_get_probes (%s) = %s\n",
                    objfile_debug_name (objfile),
-                   host_address_to_string (retval));
+                   host_address_to_string (retval.data ()));
 
   return retval;
 }
@@ -442,14 +448,14 @@ debug_sym_init (struct objfile *objfile)
 }
 
 static void
-debug_sym_read (struct objfile *objfile, int symfile_flags)
+debug_sym_read (struct objfile *objfile, symfile_add_flags symfile_flags)
 {
   const struct debug_sym_fns_data *debug_data
     = ((const struct debug_sym_fns_data *)
        objfile_data (objfile, symfile_debug_objfile_data_key));
 
   fprintf_filtered (gdb_stdlog, "sf->sym_read (%s, 0x%x)\n",
-                   objfile_debug_name (objfile), symfile_flags);
+                   objfile_debug_name (objfile), (unsigned) symfile_flags);
 
   debug_data->real_sf->sym_read (objfile, symfile_flags);
 }
@@ -482,7 +488,7 @@ debug_sym_finish (struct objfile *objfile)
 
 static void
 debug_sym_offsets (struct objfile *objfile,
-                  const struct section_addr_info *info)
+                  const section_addr_info &info)
 {
   const struct debug_sym_fns_data *debug_data
     = ((const struct debug_sym_fns_data *)
@@ -490,7 +496,7 @@ debug_sym_offsets (struct objfile *objfile,
 
   fprintf_filtered (gdb_stdlog, "sf->sym_offsets (%s, %s)\n",
                    objfile_debug_name (objfile),
-                   host_address_to_string (info));
+                   host_address_to_string (&info));
 
   debug_data->real_sf->sym_offsets (objfile, info);
 }
@@ -651,25 +657,24 @@ objfile_set_sym_fns (struct objfile *objfile, const struct sym_fns *sf)
 }
 
 static void
-set_debug_symfile (char *args, int from_tty, struct cmd_list_element *c)
+set_debug_symfile (const char *args, int from_tty, struct cmd_list_element *c)
 {
   struct program_space *pspace;
-  struct objfile *objfile;
 
   ALL_PSPACES (pspace)
-    ALL_PSPACE_OBJFILES (pspace, objfile)
-    {
-      if (debug_symfile)
-       {
-         if (!symfile_debug_installed (objfile))
-           install_symfile_debug_logging (objfile);
-       }
-      else
-       {
-         if (symfile_debug_installed (objfile))
-           uninstall_symfile_debug_logging (objfile);
-       }
-    }
+    for (objfile *objfile : pspace->objfiles ())
+      {
+       if (debug_symfile)
+         {
+           if (!symfile_debug_installed (objfile))
+             install_symfile_debug_logging (objfile);
+         }
+       else
+         {
+           if (symfile_debug_installed (objfile))
+             uninstall_symfile_debug_logging (objfile);
+         }
+      }
 }
 
 static void
@@ -679,8 +684,6 @@ show_debug_symfile (struct ui_file *file, int from_tty,
   fprintf_filtered (file, _("Symfile debugging is %s.\n"), value);
 }
 
-initialize_file_ftype _initialize_symfile_debug;
-
 void
 _initialize_symfile_debug (void)
 {