Make sure terminal settings are restored before exiting

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

diff --git a/gdb/symtab.h b/gdb/symtab.h
index d19522227b3916eb1aa3b678f94063f6b77b44f6..6a0b8da61f7929870ac3acaf4474b5a80e011812 100644 (file)
--- a/gdb/symtab.h
+++ b/gdb/symtab.h
@@ -1,6 +1,6 @@
 /* Symbol table definitions for GDB.
 
-   Copyright (C) 1986-2014 Free Software Foundation, Inc.
+   Copyright (C) 1986-2015 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -461,6 +461,10 @@ typedef enum domain_enum_tag
   COMMON_BLOCK_DOMAIN
 } domain_enum;
 
+/* The number of bits in a symbol used to represent the domain.  */
+
+#define SYMBOL_DOMAIN_BITS 4
+
 extern const char *domain_name (domain_enum);
 
 /* Searching domains, used for `search_symbols'.  Element numbers are
@@ -707,14 +711,23 @@ struct symbol
 
   struct type *type;
 
-  /* The symbol table containing this symbol.  This is the file
-     associated with LINE.  It can be NULL during symbols read-in but it is
-     never NULL during normal operation.  */
-  struct symtab *symtab;
+  /* The owner of this symbol.
+     Which one to use is defined by symbol.is_objfile_owned.  */
+
+  union
+  {
+    /* The symbol table containing this symbol.  This is the file associated
+       with LINE.  It can be NULL during symbols read-in but it is never NULL
+       during normal operation.  */
+    struct symtab *symtab;
+
+    /* For types defined by the architecture.  */
+    struct gdbarch *arch;
+  } owner;
 
   /* Domain code.  */
 
-  ENUM_BITFIELD(domain_enum_tag) domain : 6;
+  ENUM_BITFIELD(domain_enum_tag) domain : SYMBOL_DOMAIN_BITS;
 
   /* Address class.  This holds an index into the 'symbol_impls'
      table.  The actual enum address_class value is stored there,
@@ -722,6 +735,11 @@ struct symbol
 
   unsigned int aclass_index : SYMBOL_ACLASS_BITS;
 
+  /* If non-zero then symbol is objfile-owned, use owner.symtab.
+     Otherwise symbol is arch-owned, use owner.arch.  */
+
+  unsigned int is_objfile_owned : 1;
+
   /* Whether this is an argument.  */
 
   unsigned is_argument : 1;
@@ -738,6 +756,7 @@ struct symbol
      SYMBOL_INLINED set) this is the line number of the function's call
      site.  Inlined function symbols are not definitions, and they are
      never found by symbol table lookup.
+     If this symbol is arch-owned, LINE shall be zero.
 
      FIXME: Should we really make the assumption that nobody will try
      to debug files longer than 64K lines?  What about machine
@@ -765,10 +784,14 @@ struct symbol
 
 extern const struct symbol_impl *symbol_impls;
 
+/* Note: There is no accessor macro for symbol.owner because it is
+   "private".  */
+
 #define SYMBOL_DOMAIN(symbol)  (symbol)->domain
 #define SYMBOL_IMPL(symbol)            (symbol_impls[(symbol)->aclass_index])
 #define SYMBOL_ACLASS_INDEX(symbol)    (symbol)->aclass_index
 #define SYMBOL_CLASS(symbol)           (SYMBOL_IMPL (symbol).aclass)
+#define SYMBOL_OBJFILE_OWNED(symbol)   ((symbol)->is_objfile_owned)
 #define SYMBOL_IS_ARGUMENT(symbol)     (symbol)->is_argument
 #define SYMBOL_INLINED(symbol)         (symbol)->is_inlined
 #define SYMBOL_IS_CPLUS_TEMPLATE_FUNCTION(symbol) \
@@ -901,7 +924,8 @@ struct section_offsets
 
 struct symtab
 {
-  /* Unordered chain of all existing symtabs of this objfile.  */
+  /* Unordered chain of all filetabs in the compunit,  with the exception
+     that the "main" source file is the first entry in the list.  */
 
   struct symtab *next;
 
@@ -1186,9 +1210,11 @@ extern struct symbol *lookup_symbol (const char *, const struct block *,
    that can't think of anything better to do.
    This implements the C lookup rules.  */
 
-extern struct symbol *basic_lookup_symbol_nonlocal (const char *,
-                                                   const struct block *,
-                                                   const domain_enum);
+extern struct symbol *
+  basic_lookup_symbol_nonlocal (const struct language_defn *langdef,
+                               const char *,
+                               const struct block *,
+                               const domain_enum);
 
 /* Some helper functions for languages that need to write their own
    lookup_symbol_nonlocal functions.  */
@@ -1391,7 +1417,7 @@ extern int find_line_pc_range (struct symtab_and_line, CORE_ADDR *,
 
 extern void resolve_sal_pc (struct symtab_and_line *);
 
-/* Symbol-reading stuff in symfile.c and solib.c.  */
+/* solib.c */
 
 extern void clear_solib (void);
 
@@ -1449,12 +1475,6 @@ extern struct symtab_and_line find_function_start_sal (struct symbol *sym,
 
 extern void skip_prologue_sal (struct symtab_and_line *);
 
-/* symfile.c */
-
-extern void clear_symtab_users (int add_flags);
-
-extern enum language deduce_language_from_filename (const char *);
-
 /* symtab.c */
 
 extern CORE_ADDR skip_prologue_using_sal (struct gdbarch *gdbarch,
@@ -1569,7 +1589,7 @@ struct cleanup *demangle_for_lookup (const char *name, enum language lang,
 
 struct symbol *allocate_symbol (struct objfile *);
 
-void initialize_symbol (struct symbol *);
+void initialize_objfile_symbol (struct symbol *);
 
 struct template_symbol *allocate_template_symbol (struct objfile *);