/* Symbol table definitions for GDB.
- Copyright 1986, 89, 91, 92, 93, 94, 95, 96, 1998
+ Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2001
Free Software Foundation, Inc.
This file is part of GDB.
#if !defined (SYMTAB_H)
#define SYMTAB_H 1
-/* Some definitions and declarations to go with use of obstacks. */
-
-#include "obstack.h"
-#define obstack_chunk_alloc xmalloc
-#define obstack_chunk_free free
-#include "bcache.h"
+/* Opaque declarations. */
+struct obstack;
/* Don't do this; it means that if some .o's are compiled with GNU C
and some are not (easy to do accidentally the way we configure
char *demangled_name;
}
cplus_specific;
- struct chill_specific /* For Chill */
- {
- char *demangled_name;
- }
- chill_specific;
+#if 0
+ /* OBSOLETE struct chill_specific *//* For Chill */
+ /* OBSOLETE { */
+ /* OBSOLETE char *demangled_name; */
+ /* OBSOLETE } */
+ /* OBSOLETE chill_specific; */
+#endif
}
language_specific;
{ \
SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
} \
- else if (SYMBOL_LANGUAGE (symbol) == language_chill) \
- { \
- SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \
- } \
+ /* OBSOLETE else if (SYMBOL_LANGUAGE (symbol) == language_chill) */ \
+ /* OBSOLETE { */ \
+ /* OBSOLETE SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; */ \
+ /* OBSOLETE } */ \
else \
{ \
memset (&(symbol)->ginfo.language_specific, 0, \
} \
} while (0)
-/* Macro that attempts to initialize the demangled name for a symbol,
- based on the language of that symbol. If the language is set to
- language_auto, it will attempt to find any demangling algorithm
- that works and then set the language appropriately. If no demangling
- of any kind is found, the language is set back to language_unknown,
- so we can avoid doing this work again the next time we encounter
- the symbol. Any required space to store the name is obtained from the
- specified obstack. */
-
-#define SYMBOL_INIT_DEMANGLED_NAME(symbol,obstack) \
- do { \
- char *demangled = NULL; \
- if (SYMBOL_LANGUAGE (symbol) == language_cplus \
- || SYMBOL_LANGUAGE (symbol) == language_auto) \
- { \
- demangled = \
- cplus_demangle (SYMBOL_NAME (symbol), DMGL_PARAMS | DMGL_ANSI);\
- if (demangled != NULL) \
- { \
- SYMBOL_LANGUAGE (symbol) = language_cplus; \
- SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = \
- obsavestring (demangled, strlen (demangled), (obstack)); \
- free (demangled); \
- } \
- else \
- { \
- SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
- } \
- } \
- if (SYMBOL_LANGUAGE (symbol) == language_java) \
- { \
- demangled = \
- cplus_demangle (SYMBOL_NAME (symbol), \
- DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); \
- if (demangled != NULL) \
- { \
- SYMBOL_LANGUAGE (symbol) = language_java; \
- SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = \
- obsavestring (demangled, strlen (demangled), (obstack)); \
- free (demangled); \
- } \
- else \
- { \
- SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
- } \
- } \
- if (demangled == NULL \
- && (SYMBOL_LANGUAGE (symbol) == language_chill \
- || SYMBOL_LANGUAGE (symbol) == language_auto)) \
- { \
- demangled = \
- chill_demangle (SYMBOL_NAME (symbol)); \
- if (demangled != NULL) \
- { \
- SYMBOL_LANGUAGE (symbol) = language_chill; \
- SYMBOL_CHILL_DEMANGLED_NAME (symbol) = \
- obsavestring (demangled, strlen (demangled), (obstack)); \
- free (demangled); \
- } \
- else \
- { \
- SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \
- } \
- } \
- if (SYMBOL_LANGUAGE (symbol) == language_auto) \
- { \
- SYMBOL_LANGUAGE (symbol) = language_unknown; \
- } \
- } while (0)
+#define SYMBOL_INIT_DEMANGLED_NAME(symbol,obstack) \
+ (symbol_init_demangled_name (&symbol->ginfo, (obstack)))
+extern void symbol_init_demangled_name (struct general_symbol_info *symbol,
+ struct obstack *obstack);
+
/* Macro that returns the demangled name for a symbol based on the language
for that symbol. If no demangled name exists, returns NULL. */
(SYMBOL_LANGUAGE (symbol) == language_cplus \
|| SYMBOL_LANGUAGE (symbol) == language_java \
? SYMBOL_CPLUS_DEMANGLED_NAME (symbol) \
- : (SYMBOL_LANGUAGE (symbol) == language_chill \
- ? SYMBOL_CHILL_DEMANGLED_NAME (symbol) \
- : NULL))
+ : /* OBSOLETE (SYMBOL_LANGUAGE (symbol) == language_chill */ \
+ /* OBSOLETE ? SYMBOL_CHILL_DEMANGLED_NAME (symbol) */ \
+ NULL)
-#define SYMBOL_CHILL_DEMANGLED_NAME(symbol) \
- (symbol)->ginfo.language_specific.chill_specific.demangled_name
+/* OBSOLETE #define SYMBOL_CHILL_DEMANGLED_NAME(symbol) */
+/* OBSOLETE (symbol)->ginfo.language_specific.chill_specific.demangled_name */
/* Macro that returns the "natural source name" of a symbol. In C++ this is
the "demangled" form of the name if demangle is on and the "mangled" form
unsigned char gcc_compile_flag;
+ /* The symbols for this block are either in a simple linear list or
+ in a simple hashtable. Blocks which correspond to a function
+ (which have a list of symbols corresponding to arguments) use
+ a linear list, as do some older symbol readers (currently only
+ mdebugread and dstread). Other blocks are hashed.
+
+ The hashtable uses the same hash function as the minsym hashtables,
+ found in minsyms.c:minsym_hash_iw. Symbols are hashed based on
+ their demangled name if appropriate, and on their name otherwise.
+ The hash function ignores space, and stops at the beginning of the
+ argument list if any.
+
+ The table is laid out in NSYMS/5 buckets and symbols are chained via
+ their hash_next field. */
+
+ /* If this is really a hashtable of the symbols, this flag is 1. */
+
+ unsigned char hashtable;
+
/* Number of local symbols. */
int nsyms;
#define BLOCK_START(bl) (bl)->startaddr
#define BLOCK_END(bl) (bl)->endaddr
-#define BLOCK_NSYMS(bl) (bl)->nsyms
-#define BLOCK_SYM(bl, n) (bl)->sym[n]
#define BLOCK_FUNCTION(bl) (bl)->function
#define BLOCK_SUPERBLOCK(bl) (bl)->superblock
#define BLOCK_GCC_COMPILED(bl) (bl)->gcc_compile_flag
+#define BLOCK_HASHTABLE(bl) (bl)->hashtable
+
+/* For blocks without a hashtable (BLOCK_HASHTABLE (bl) == 0) only. */
+#define BLOCK_NSYMS(bl) (bl)->nsyms
+#define BLOCK_SYM(bl, n) (bl)->sym[n]
+
+/* For blocks with a hashtable, but these are valid for non-hashed blocks as
+ well - each symbol will appear to be one bucket by itself. */
+#define BLOCK_BUCKETS(bl) (bl)->nsyms
+#define BLOCK_BUCKET(bl, n) (bl)->sym[n]
+
+/* Macro used to set the size of a hashtable for N symbols. */
+#define BLOCK_HASHTABLE_SIZE(n) ((n)/5 + 1)
+
+/* Macro to loop through all symbols in a block BL, in no particular order.
+ i counts which bucket we are in, and sym points to the current symbol. */
+
+#define ALL_BLOCK_SYMBOLS(bl, i, sym) \
+ for ((i) = 0; (i) < BLOCK_BUCKETS ((bl)); (i)++) \
+ for ((sym) = BLOCK_BUCKET ((bl), (i)); (sym); \
+ (sym) = (sym)->hash_next)
/* Nonzero if symbols of block BL should be sorted alphabetically.
Don't sort a block which corresponds to a function. If we did the
sorting would have to preserve the order of the symbols for the
- arguments. */
+ arguments. Also don't sort any block that we chose to hash. */
-#define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40 && BLOCK_FUNCTION (bl) == NULL)
+#define BLOCK_SHOULD_SORT(bl) (! BLOCK_HASHTABLE (bl) \
+ && BLOCK_FUNCTION (bl) == NULL)
\f
/* Represent one symbol name; a variable, constant, function or typedef. */
/* List of ranges where this symbol is active. This is only
used by alias symbols at the current time. */
struct range_list *ranges;
+
+ struct symbol *hash_next;
};
\f
/* Source-file information. This describes the relation between source files,
- ine numbers and addresses in the program text. */
+ line numbers and addresses in the program text. */
struct sourcevector
{
30 0x300
10 0x400 - for the increment part of a for stmt.
- */
+ If an entry has a line number of zero, it marks the start of a PC
+ range for which no line number information is available. It is
+ acceptable, though wasteful of table space, for such a range to be
+ zero length. */
struct linetable
{
CORE_ADDR offsets[1]; /* As many as needed. */
};
-#define ANOFFSET(secoff, whichone) (secoff->offsets[whichone])
+#define ANOFFSET(secoff, whichone) \
+ ((whichone == -1) \
+ ? (internal_error (__FILE__, __LINE__, "Section index is uninitialized"), -1) \
+ : secoff->offsets[whichone])
/* The maximum possible size of a section_offsets table. */
int primary;
+ /* The macro table for this symtab. Like the blockvector, this
+ may be shared between different symtabs --- and normally is for
+ all the symtabs in a given compilation unit. */
+ struct macro_table *macro_table;
+
/* Name of this source file. */
char *filename;
char *filename;
+ /* Full path of the source file. NULL if not known. */
+
+ char *fullname;
+
/* Information about the object file from which symbols should be read. */
struct objfile *objfile;
#define VTBL_FNADDR_OFFSET 2
-/* Macro that yields non-zero value iff NAME is the prefix for C++ operator
- names. If you leave out the parenthesis here you will lose!
- Currently 'o' 'p' CPLUS_MARKER is used for both the symbol in the
- symbol-file and the names in gdb's symbol table.
- Note that this macro is g++ specific (FIXME). */
-
-#define OPNAME_PREFIX_P(NAME) \
- ((NAME)[0] == 'o' && (NAME)[1] == 'p' && is_cplus_marker ((NAME)[2]))
-
-/* Macro that yields non-zero value iff NAME is the prefix for C++ vtbl
- names. Note that this macro is g++ specific (FIXME).
- '_vt$' is the old cfront-style vtables; '_VT$' is the new
- style, using thunks (where '$' is really CPLUS_MARKER). */
-
-#define VTBL_PREFIX_P(NAME) \
- (((NAME)[0] == '_' \
- && (((NAME)[1] == 'V' && (NAME)[2] == 'T') \
- || ((NAME)[1] == 'v' && (NAME)[2] == 't')) \
- && is_cplus_marker ((NAME)[3])) || ((NAME)[0]=='_' && (NAME)[1]=='_' \
- && (NAME)[2]=='v' && (NAME)[3]=='t' && (NAME)[4]=='_'))
-
-/* Macro that yields non-zero value iff NAME is the prefix for C++ destructor
- names. Note that this macro is g++ specific (FIXME). */
-
-#define DESTRUCTOR_PREFIX_P(NAME) \
- ((NAME)[0] == '_' && is_cplus_marker ((NAME)[1]) && (NAME)[2] == '_')
-\f
-
/* External variables and functions for the objects described above. */
/* This symtab variable specifies the current file for printing source lines */
/* lookup a symbol table by source file name */
-extern struct symtab *lookup_symtab (char *);
+extern struct symtab *lookup_symtab (const char *);
/* lookup a symbol by name (optional block, optional symtab) */
/* lookup a symbol by name, within a specified block */
extern struct symbol *lookup_block_symbol (const struct block *, const char *,
+ const char *,
const namespace_enum);
/* lookup a [struct, union, enum] by name, within a specified block */
extern void clear_pc_function_cache (void);
-extern int
-find_pc_sect_partial_function (CORE_ADDR, asection *,
- char **, CORE_ADDR *, CORE_ADDR *);
+extern int find_pc_sect_partial_function (CORE_ADDR, asection *,
+ char **, CORE_ADDR *, CORE_ADDR *);
/* from symtab.c: */
/* lookup partial symbol table by filename */
-extern struct partial_symtab *lookup_partial_symtab (char *);
+extern struct partial_symtab *lookup_partial_symtab (const char *);
/* lookup partial symbol table by address */
enum minimal_symbol_type,
char *info, int section, asection * bfd_section, struct objfile *);
-#ifdef SOFUN_ADDRESS_MAYBE_MISSING
-extern CORE_ADDR find_stab_function_addr (char *, char *, struct objfile *);
-#endif
-
extern unsigned int msymbol_hash_iw (const char *);
extern unsigned int msymbol_hash (const char *);
extern struct symtabs_and_lines decode_line_spec_1 (char *, int);
-extern struct symtabs_and_lines
-decode_line_1 (char **, int, struct symtab *, int, char ***);
-
/* Symmisc.c */
void maintenance_print_symbols (char *, int);
extern char **make_symbol_completion_list (char *, char *);
+extern char **make_file_symbol_completion_list (char *, char *, char *);
+
extern struct symbol **make_symbol_overload_list (struct symbol *);
+extern char **make_source_files_completion_list (char *, char *);
+
/* symtab.c */
extern struct partial_symtab *find_main_psymtab (void);
+extern struct symtab *find_line_symtab (struct symtab *, int, int *, int *);
+
+extern struct symtab_and_line find_function_start_sal (struct symbol *sym, int);
+
/* blockframe.c */
extern struct blockvector *blockvector_for_pc (CORE_ADDR, int *);
extern struct symbol *fixup_symbol_section (struct symbol *,
struct objfile *);
+extern struct partial_symbol *fixup_psymbol_section (struct partial_symbol
+ *psym,
+ struct objfile *objfile);
+
/* Symbol searching */
/* When using search_symbols, a list of the following structs is returned.
- Callers must free the search list using free_symbol_search! */
+ Callers must free the search list using free_search_symbols! */
struct symbol_search
{
/* The block in which the match was found. Could be, for example,
extern void free_search_symbols (struct symbol_search *);
extern struct cleanup *make_cleanup_free_search_symbols (struct symbol_search *);
+/* The name of the ``main'' function.
+ FIXME: cagney/2001-03-20: Can't make main_name() const since some
+ of the calling code currently assumes that the string isn't
+ const. */
+extern void set_main_name (const char *name);
+extern /*const*/ char *main_name (void);
+
#endif /* !defined(SYMTAB_H) */
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