@ -1,5 +1,6 @@
/* Symbol table definitions for GDB.
Copyright 1986 , 1989 , 1991 , 1992 , 1993 , 1994 , 1995 , 1996 Free Software Foundation , Inc .
Copyright 1986 , 89 , 91 , 92 , 93 , 94 , 95 , 96 , 1998
Free Software Foundation , Inc .
This file is part of GDB .
@ -27,6 +28,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
# define obstack_chunk_free free
# include "bcache.h"
# include "gnu-regex.h"
/* 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
things ; also it is a pain to have to " make clean " every time you
@ -84,7 +87,10 @@ struct general_symbol_info
union
{
struct cplus_specific /* For C++ and Java */
struct cplus_specific /* For C++ */
/* start-sanitize-java */
/* and Java */
/* end-sanitize-java */
{
char * demangled_name ;
} cplus_specific ;
@ -136,7 +142,10 @@ extern CORE_ADDR symbol_overlayed_address PARAMS((CORE_ADDR, asection *));
do { \
SYMBOL_LANGUAGE ( symbol ) = language ; \
if ( SYMBOL_LANGUAGE ( symbol ) = = language_cplus \
| | SYMBOL_LANGUAGE ( symbol ) = = language_java ) \
/* start-sanitize-java */ \
| | SYMBOL_LANGUAGE ( symbol ) = = language_java \
/* end-sanitize-java */ \
) \
{ \
SYMBOL_CPLUS_DEMANGLED_NAME ( symbol ) = NULL ; \
} \
@ -180,6 +189,7 @@ extern CORE_ADDR symbol_overlayed_address PARAMS((CORE_ADDR, asection *));
SYMBOL_CPLUS_DEMANGLED_NAME ( symbol ) = NULL ; \
} \
} \
/* start-sanitize-java */ \
if ( SYMBOL_LANGUAGE ( symbol ) = = language_java ) \
{ \
demangled = \
@ -197,6 +207,7 @@ extern CORE_ADDR symbol_overlayed_address PARAMS((CORE_ADDR, asection *));
SYMBOL_CPLUS_DEMANGLED_NAME ( symbol ) = NULL ; \
} \
} \
/* end-sanitize-java */ \
if ( demangled = = NULL \
& & ( SYMBOL_LANGUAGE ( symbol ) = = language_chill \
| | SYMBOL_LANGUAGE ( symbol ) = = language_auto ) ) \
@ -226,7 +237,9 @@ extern CORE_ADDR symbol_overlayed_address PARAMS((CORE_ADDR, asection *));
# define SYMBOL_DEMANGLED_NAME(symbol) \
( SYMBOL_LANGUAGE ( symbol ) = = language_cplus \
/* start-sanitize-java */ \
| | SYMBOL_LANGUAGE ( symbol ) = = language_java \
/* end-sanitize-java */ \
? SYMBOL_CPLUS_DEMANGLED_NAME ( symbol ) \
: ( SYMBOL_LANGUAGE ( symbol ) = = language_chill \
? SYMBOL_CHILL_DEMANGLED_NAME ( symbol ) \
@ -300,14 +313,17 @@ struct minimal_symbol
struct general_symbol_info ginfo ;
/* The info field is available for caching machine-specific information that
The AMD 29000 tdep . c uses it to remember things it has decoded from the
instructions in the function header , so it doesn ' t have to rederive the
info constantly ( over a serial line ) . It is initialized to zero and
stays that way until target - dependent code sets it . Storage for any data
pointed to by this field should be allocated on the symbol_obstack for
the associated objfile . The type would be " void * " except for reasons
of compatibility with older compilers . This field is optional . */
/* The info field is available for caching machine-specific information
so it doesn ' t have to rederive the info constantly ( over a serial line ) .
It is initialized to zero and stays that way until target - dependent code
sets it . Storage for any data pointed to by this field should be allo -
cated on the symbol_obstack for the associated objfile .
The type would be " void * " except for reasons of compatibility with older
compilers . This field is optional .
Currently , the AMD 29000 tdep . c uses it to remember things it has decoded
from the instructions in the function header , and the MIPS - 16 code uses
it to identify 16 - bit procedures . */
char * info ;
@ -481,7 +497,24 @@ typedef enum
/* LABEL_NAMESPACE may be used for names of labels (for gotos);
currently it is not used and labels are not recorded at all . */
LABEL_NAMESPACE
LABEL_NAMESPACE ,
/* Searching namespaces. These overlap with VAR_NAMESPACE, providing
some granularity with the search_symbols function . */
/* Everything in VAR_NAMESPACE minus FUNCTIONS_-, TYPES_-, and
METHODS_NAMESPACE */
VARIABLES_NAMESPACE ,
/* All functions -- for some reason not methods, though. */
FUNCTIONS_NAMESPACE ,
/* All defined types */
TYPES_NAMESPACE ,
/* All class methods -- why is this separated out? */
METHODS_NAMESPACE
} namespace_enum ;
/* An address-class says where to find the value of a symbol. */
@ -605,13 +638,20 @@ enum address_class
/* Linked list of symbol's live ranges. */
struct live_ range
struct range_list
{
CORE_ADDR start ;
CORE_ADDR end ;
struct live_ range* next ;
struct range_list * next ;
} ;
/* Linked list of aliases for a particular main/primary symbol. */
struct alias_list
{
struct symbol * sym ;
struct alias_list * next ;
} ;
struct symbol
{
@ -652,34 +692,24 @@ struct symbol
}
aux_value ;
/* Live range information (if present) for debugging of optimized code.
Gcc extensions were added to stabs to encode live range information .
The syntax for referencing ( defining ) symbol aliases is " #n " ( " #n= " )
where n is a number . The syntax for specifying a range is " l(#<m>,#<n>) " ,
where m and n are numbers .
aliases - list of other symbols which are lexically the same symbol ,
but were optimized into different storage classes ( eg . for the
local symbol " x " , one symbol contains range information where x
is on the stack , while an alias contains the live ranges where x
is in a register ) .
range - list of instruction ranges where the symbol is live . */
struct live_range_info
{
struct symbol * aliases ; /* Link to other aliases for this symbol. */
struct live_range * range ; /* Linked list of live ranges. */
} live ;
/* Link to a list of aliases for this symbol.
Only a " primary/main symbol may have aliases. */
struct alias_list * aliases ;
/* List of ranges where this symbol is active. This is only
used by alias symbols at the current time . */
struct range_list * ranges ;
} ;
# define SYMBOL_NAMESPACE(symbol) (symbol)->namespace
# define SYMBOL_CLASS(symbol) (symbol)->aclass
# define SYMBOL_TYPE(symbol) (symbol)->type
# define SYMBOL_LINE(symbol) (symbol)->line
# define SYMBOL_BASEREG(symbol) (symbol)->aux_value.basereg
# define SYMBOL_ALIASES(symbol) (symbol)->live.aliases
# define SYMBOL_RANGE(symbol) (symbol)->live.range
# define SYMBOL_RANGE_START(symbol) (symbol)->live.range->start
# define SYMBOL_RANGE_END(symbol) (symbol)->live.range->end
# define SYMBOL_RANGE_NEXT(symbol) (symbol)->live.range->next
# define SYMBOL_ALIASES(symbol) (symbol)->aliases
# define SYMBOL_RANGES(symbol) (symbol)->ranges
/* A partial_symbol records the name, namespace, and address class of
symbols whose types we have not parsed yet . For functions , it also
@ -877,14 +907,6 @@ struct symtab
struct objfile * objfile ;
/* Anything extra for this symtab. This is for target machines
with special debugging info of some sort ( which cannot just
be represented in a normal symtab ) . */
# if defined (EXTRA_SYMTAB_INFO)
EXTRA_SYMTAB_INFO
# endif
} ;
# define BLOCKVECTOR(symtab) (symtab)->blockvector
@ -1098,12 +1120,17 @@ find_pc_sect_function PARAMS ((CORE_ADDR, asection *));
/* lookup function from address, return name, start addr and end addr */
extern int find_pc_partial_function PARAMS ( ( CORE_ADDR , char * * ,
extern int
find_pc_partial_function PARAMS ( ( CORE_ADDR , char * * ,
CORE_ADDR * , CORE_ADDR * ) ) ;
extern void
clear_pc_function_cache PARAMS ( ( void ) ) ;
extern int
find_pc_sect_partial_function PARAMS ( ( CORE_ADDR , asection * ,
char * * , CORE_ADDR * , CORE_ADDR * ) ) ;
/* from symtab.c: */
/* lookup partial symbol table by filename */
@ -1263,8 +1290,8 @@ find_addr_symbol PARAMS ((CORE_ADDR, struct symtab **, CORE_ADDR *));
/* Given a symtab and line number, return the pc there. */
extern CORE_ADDR
find_line_pc PARAMS ( ( struct symtab * , int ) ) ;
extern int
find_line_pc PARAMS ( ( struct symtab * , int , CORE_ADDR * ) ) ;
extern int
find_line_pc_range PARAMS ( ( struct symtab_and_line ,
@ -1341,6 +1368,8 @@ select_source_symtab PARAMS ((struct symtab *));
extern char * * make_symbol_completion_list PARAMS ( ( char * , char * ) ) ;
extern void _initialize_source PARAMS ( ( void ) ) ;
/* symtab.c */
extern struct partial_symtab *
@ -1351,10 +1380,10 @@ find_main_psymtab PARAMS ((void));
extern struct blockvector *
blockvector_for_pc PARAMS ( ( CORE_ADDR , int * ) ) ;
extern struct blockvector *
blockvector_for_pc_sect PARAMS ( ( CORE_ADDR , asection * , int * ,
struct symtab * ) ) ;
/* symfile.c */
extern void
@ -1371,4 +1400,32 @@ in_prologue PARAMS ((CORE_ADDR pc, CORE_ADDR func_start));
extern struct symbol *
fixup_symbol_section PARAMS ( ( struct symbol * , struct 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 ! */
struct symbol_search
{
/* The block in which the match was found. Could be, for example,
STATIC_BLOCK or GLOBAL_BLOCK . */
int block ;
/* Information describing what was found.
If symtab abd symbol are NOT NULL , then information was found
for this match . */
struct symtab * symtab ;
struct symbol * symbol ;
/* If msymbol is non-null, then a match was made on something for
which only minimal_symbols exist . */
struct minimal_symbol * msymbol ;
/* A link to the next match, or NULL for the end. */
struct symbol_search * next ;
} ;
extern void search_symbols PARAMS ( ( char * , namespace_enum , int , char * * , struct symbol_search * * ) ) ;
extern void free_search_symbols PARAMS ( ( struct symbol_search * ) ) ;
# endif /* !defined(SYMTAB_H) */
Jason Molenda
28 years ago