* dwarf2read.c (dw2_find_symbol_file): Don't crash if there are no files.

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

diff --git a/gdb/symtab.h b/gdb/symtab.h
index 7538180d2322438b0ebcfd3b9a17972caf1f7a2f..61e7c0fdb92f53dbd90f684f6e8c521b3fe0f2d0 100644 (file)
--- a/gdb/symtab.h
+++ b/gdb/symtab.h
@@ -35,6 +35,7 @@ struct axs_value;
 struct agent_expr;
 struct program_space;
 struct language_defn;
+struct probe;
 
 /* Some of the structures in this file are space critical.
    The space-critical structures are:
@@ -81,7 +82,7 @@ struct language_defn;
 
 struct cplus_specific
 {
-  char *demangled_name;
+  const char *demangled_name;
 };
 
 /* Define a structure for the information that is common to all symbol types,
@@ -99,7 +100,7 @@ struct general_symbol_info
      the mangled name and demangled name, this is the mangled
      name.  */
 
-  char *name;
+  const char *name;
 
   /* Value of the symbol.  Which member of this union to use, and what
      it means, depends on what kind of symbol this is and its
@@ -109,10 +110,7 @@ struct general_symbol_info
 
   union
   {
-    /* The fact that this is a long not a LONGEST mainly limits the
-       range of a LOC_CONST.  Since LOC_CONST_BYTES exists, I'm not
-       sure that is a big deal.  */
-    long ivalue;
+    LONGEST ivalue;
 
     struct block *block;
 
@@ -135,7 +133,7 @@ struct general_symbol_info
        currently used by Ada, Java, and Objective C.  */
     struct mangled_lang
     {
-      char *demangled_name;
+      const char *demangled_name;
     }
     mangled_lang;
 
@@ -166,7 +164,8 @@ struct general_symbol_info
 extern void symbol_set_demangled_name (struct general_symbol_info *, char *,
                                        struct objfile *);
 
-extern char *symbol_get_demangled_name (const struct general_symbol_info *);
+extern const char *symbol_get_demangled_name
+  (const struct general_symbol_info *);
 
 extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, struct obj_section *);
 
@@ -225,7 +224,8 @@ extern void symbol_set_names (struct general_symbol_info *symbol,
 
 #define SYMBOL_NATURAL_NAME(symbol) \
   (symbol_natural_name (&(symbol)->ginfo))
-extern char *symbol_natural_name (const struct general_symbol_info *symbol);
+extern const char *symbol_natural_name
+  (const struct general_symbol_info *symbol);
 
 /* Return SYMBOL's name from the point of view of the linker.  In
    languages like C++ where symbols may be mangled for ease of
@@ -238,7 +238,8 @@ extern char *symbol_natural_name (const struct general_symbol_info *symbol);
    that symbol.  If no demangled name exists, return NULL.  */
 #define SYMBOL_DEMANGLED_NAME(symbol) \
   (symbol_demangled_name (&(symbol)->ginfo))
-extern char *symbol_demangled_name (const struct general_symbol_info *symbol);
+extern const char *symbol_demangled_name
+  (const struct general_symbol_info *symbol);
 
 /* Macro that returns a version of the name of a symbol that is
    suitable for output.  In C++ this is the "demangled" form of the
@@ -254,13 +255,6 @@ extern char *symbol_demangled_name (const struct general_symbol_info *symbol);
   (demangle ? SYMBOL_NATURAL_NAME (symbol) : SYMBOL_LINKAGE_NAME (symbol))
 extern int demangle;
 
-/* Return non-zero if NAME matches the "natural" name of SYMBOL.
-   Whitespace and trailing parentheses are ignored.
-   See strcmp_iw for details about its behavior.  */
-
-#define SYMBOL_MATCHES_NATURAL_NAME(symbol, name)                      \
-  (strcmp_iw (SYMBOL_NATURAL_NAME (symbol), (name)) == 0)
-
 /* Macro that returns the name to be used when sorting and searching symbols.
    In  C++, Chill, and Java, we search for the demangled form of a name,
    and so sort symbols accordingly.  In Ada, however, we search by mangled
@@ -268,10 +262,11 @@ extern int demangle;
    returns the same value (same pointer) as SYMBOL_LINKAGE_NAME.  */
 #define SYMBOL_SEARCH_NAME(symbol)                                      \
    (symbol_search_name (&(symbol)->ginfo))
-extern char *symbol_search_name (const struct general_symbol_info *);
+extern const char *symbol_search_name (const struct general_symbol_info *);
 
-/* Analogous to SYMBOL_MATCHES_NATURAL_NAME, but uses the search
-   name.  */
+/* Return non-zero if NAME matches the "search" name of SYMBOL.
+   Whitespace and trailing parentheses are ignored.
+   See strcmp_iw for details about its behavior.  */
 #define SYMBOL_MATCHES_SEARCH_NAME(symbol, name)                       \
   (strcmp_iw (SYMBOL_SEARCH_NAME (symbol), (name)) == 0)
 
@@ -958,14 +953,14 @@ extern struct symbol *find_pc_function (CORE_ADDR);
 
 extern struct symbol *find_pc_sect_function (CORE_ADDR, struct obj_section *);
 
-extern int find_pc_partial_function_gnu_ifunc (CORE_ADDR pc, char **name,
+extern int find_pc_partial_function_gnu_ifunc (CORE_ADDR pc, const char **name,
                                               CORE_ADDR *address,
                                               CORE_ADDR *endaddr,
                                               int *is_gnu_ifunc_p);
 
 /* lookup function from address, return name, start addr and end addr.  */
 
-extern int find_pc_partial_function (CORE_ADDR, char **, CORE_ADDR *,
+extern int find_pc_partial_function (CORE_ADDR, const char **, CORE_ADDR *,
                                     CORE_ADDR *);
 
 extern void clear_pc_function_cache (void);
@@ -1048,6 +1043,9 @@ struct symtab_and_line
   CORE_ADDR end;
   int explicit_pc;
   int explicit_line;
+
+  /* The probe associated with this symtab_and_line.  */
+  struct probe *probe;
 };
 
 extern void init_sal (struct symtab_and_line *sal);
@@ -1254,9 +1252,18 @@ DEF_VEC_I (CORE_ADDR);
 VEC (CORE_ADDR) *find_pcs_for_symtab_line (struct symtab *symtab, int line,
                                           struct linetable_entry **best_entry);
 
+/* Callback for LA_ITERATE_OVER_SYMBOLS.  The callback will be called
+   once per matching symbol SYM, with DATA being the argument of the
+   same name that was passed to LA_ITERATE_OVER_SYMBOLS.  The callback
+   should return nonzero to indicate that LA_ITERATE_OVER_SYMBOLS
+   should continue iterating, or zero to indicate that the iteration
+   should end.  */
+
+typedef int (symbol_found_callback_ftype) (struct symbol *sym, void *data);
+
 void iterate_over_symbols (const struct block *block, const char *name,
                           const domain_enum domain,
-                          int (*callback) (struct symbol *, void *),
+                          symbol_found_callback_ftype *callback,
                           void *data);
 
 struct cleanup *demangle_for_lookup (const char *name, enum language lang,