gdb: add target_ops::supports_displaced_step

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

diff --git a/gdb/macroscope.c b/gdb/macroscope.c
index ef334b7efe169351d271720b8ee51590a1f4a7cc..9a1e7fe633bef24e68b6b2b1f0ad8b4784093d5e 100644 (file)
--- a/gdb/macroscope.c
+++ b/gdb/macroscope.c
@@ -1,5 +1,5 @@
 /* Functions for deciding which macros are currently in scope.
-   Copyright (C) 2002, 2007, 2008 Free Software Foundation, Inc.
+   Copyright (C) 2002-2020 Free Software Foundation, Inc.
    Contributed by Red Hat, Inc.
 
    This file is part of GDB.
@@ -35,19 +35,21 @@
 struct macro_table *macro_user_macros;
 
 
-struct macro_scope *
+gdb::unique_xmalloc_ptr<struct macro_scope>
 sal_macro_scope (struct symtab_and_line sal)
 {
   struct macro_source_file *main_file, *inclusion;
-  struct macro_scope *ms;
+  struct compunit_symtab *cust;
 
-  if (! sal.symtab
-      || ! sal.symtab->macro_table)
-    return 0;
+  if (sal.symtab == NULL)
+    return NULL;
+  cust = SYMTAB_COMPUNIT (sal.symtab);
+  if (COMPUNIT_MACRO_TABLE (cust) == NULL)
+    return NULL;
 
-  ms = (struct macro_scope *) xmalloc (sizeof (*ms));
+  gdb::unique_xmalloc_ptr<struct macro_scope> ms (XNEW (struct macro_scope));
 
-  main_file = macro_main (sal.symtab->macro_table);
+  main_file = macro_main (COMPUNIT_MACRO_TABLE (cust));
   inclusion = macro_lookup_inclusion (main_file, sal.symtab->filename);
 
   if (inclusion)
@@ -74,38 +76,37 @@ sal_macro_scope (struct symtab_and_line sal)
       ms->file = main_file;
       ms->line = -1;
 
-      complaint (&symfile_complaints,
-                 _("symtab found for `%s', but that file\n"
+      complaint (_("symtab found for `%s', but that file\n"
                  "is not covered in the compilation unit's macro information"),
-                 sal.symtab->filename);
+                 symtab_to_filename_for_display (sal.symtab));
     }
 
   return ms;
 }
 
 
-struct macro_scope *
+gdb::unique_xmalloc_ptr<struct macro_scope>
 user_macro_scope (void)
 {
-  struct macro_scope *ms;
-  ms = XNEW (struct macro_scope);
+  gdb::unique_xmalloc_ptr<struct macro_scope> ms (XNEW (struct macro_scope));
   ms->file = macro_main (macro_user_macros);
   ms->line = -1;
   return ms;
 }
 
-struct macro_scope *
+gdb::unique_xmalloc_ptr<struct macro_scope>
 default_macro_scope (void)
 {
   struct symtab_and_line sal;
-  struct macro_scope *ms;
+  gdb::unique_xmalloc_ptr<struct macro_scope> ms;
   struct frame_info *frame;
+  CORE_ADDR pc;
 
   /* If there's a selected frame, use its PC.  */
   frame = deprecated_safe_get_selected_frame ();
-  if (frame)
-    sal = find_pc_line (get_frame_pc (frame), 0);
-  
+  if (frame && get_frame_pc_if_available (frame, &pc))
+    sal = find_pc_line (pc, 0);
+
   /* Fall back to the current listing position.  */
   else
     {
@@ -151,11 +152,11 @@ standard_macro_lookup (const char *name, void *baton)
   return result;
 }
 
-
+void _initialize_macroscope ();
 void
-_initialize_macroscope (void)
+_initialize_macroscope ()
 {
-  macro_user_macros = new_macro_table (0, 0);
+  macro_user_macros = new_macro_table (NULL, NULL, NULL);
   macro_set_main (macro_user_macros, "<user-defined>");
   macro_allow_redefinitions (macro_user_macros);
 }