506419459a
* symtab.c (decode_line_1, total_number_of_methods, find_methods, build_command_line_spec, find_toplevel_char, decode_line_2): Move to linespec.c. * linespec.c: New file. Routines that handle linespecs, formerly in symtab.c. * symtab.h: Export find_line_symtab and find_function_start_sal, * Makefile.in: Add linespec.c.
1454 lines
47 KiB
C++
1454 lines
47 KiB
C++
/* Symbol table definitions for GDB.
|
||
Copyright 1986, 89, 91, 92, 93, 94, 95, 96, 1998
|
||
Free Software Foundation, Inc.
|
||
|
||
This file is part of GDB.
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 2 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 59 Temple Place - Suite 330,
|
||
Boston, MA 02111-1307, USA. */
|
||
|
||
#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"
|
||
|
||
/* 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
|
||
want to switch compilers), then GDB dies a horrible death. */
|
||
/* GNU C supports enums that are bitfields. Some compilers don't. */
|
||
#if 0 && defined(__GNUC__) && !defined(BYTE_BITFIELD)
|
||
#define BYTE_BITFIELD :8;
|
||
#else
|
||
#define BYTE_BITFIELD /*nothing */
|
||
#endif
|
||
|
||
/* Define a structure for the information that is common to all symbol types,
|
||
including minimal symbols, partial symbols, and full symbols. In a
|
||
multilanguage environment, some language specific information may need to
|
||
be recorded along with each symbol.
|
||
|
||
These fields are ordered to encourage good packing, since we frequently
|
||
have tens or hundreds of thousands of these. */
|
||
|
||
struct general_symbol_info
|
||
{
|
||
/* Name of the symbol. This is a required field. Storage for the name is
|
||
allocated on the psymbol_obstack or symbol_obstack for the associated
|
||
objfile. */
|
||
|
||
char *name;
|
||
|
||
/* Value of the symbol. Which member of this union to use, and what
|
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it means, depends on what kind of symbol this is and its
|
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SYMBOL_CLASS. See comments there for more details. All of these
|
||
are in host byte order (though what they point to might be in
|
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target byte order, e.g. LOC_CONST_BYTES). */
|
||
|
||
union
|
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{
|
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/* 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;
|
||
|
||
struct block *block;
|
||
|
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char *bytes;
|
||
|
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CORE_ADDR address;
|
||
|
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/* for opaque typedef struct chain */
|
||
|
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struct symbol *chain;
|
||
}
|
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value;
|
||
|
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/* Since one and only one language can apply, wrap the language specific
|
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information inside a union. */
|
||
|
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union
|
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{
|
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struct cplus_specific /* For C++ */
|
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/* and Java */
|
||
{
|
||
char *demangled_name;
|
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}
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cplus_specific;
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struct chill_specific /* For Chill */
|
||
{
|
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char *demangled_name;
|
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}
|
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chill_specific;
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}
|
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language_specific;
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||
|
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/* Record the source code language that applies to this symbol.
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This is used to select one of the fields from the language specific
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union above. */
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||
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enum language language BYTE_BITFIELD;
|
||
|
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/* Which section is this symbol in? This is an index into
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section_offsets for this objfile. Negative means that the symbol
|
||
does not get relocated relative to a section.
|
||
Disclaimer: currently this is just used for xcoff, so don't
|
||
expect all symbol-reading code to set it correctly (the ELF code
|
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also tries to set it correctly). */
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||
|
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short section;
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||
|
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/* The bfd section associated with this symbol. */
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||
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asection *bfd_section;
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};
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extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, asection *);
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#define SYMBOL_NAME(symbol) (symbol)->ginfo.name
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#define SYMBOL_VALUE(symbol) (symbol)->ginfo.value.ivalue
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#define SYMBOL_VALUE_ADDRESS(symbol) (symbol)->ginfo.value.address
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#define SYMBOL_VALUE_BYTES(symbol) (symbol)->ginfo.value.bytes
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#define SYMBOL_BLOCK_VALUE(symbol) (symbol)->ginfo.value.block
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#define SYMBOL_VALUE_CHAIN(symbol) (symbol)->ginfo.value.chain
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#define SYMBOL_LANGUAGE(symbol) (symbol)->ginfo.language
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#define SYMBOL_SECTION(symbol) (symbol)->ginfo.section
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#define SYMBOL_BFD_SECTION(symbol) (symbol)->ginfo.bfd_section
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|
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#define SYMBOL_CPLUS_DEMANGLED_NAME(symbol) \
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(symbol)->ginfo.language_specific.cplus_specific.demangled_name
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/* Macro that initializes the language dependent portion of a symbol
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depending upon the language for the symbol. */
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#define SYMBOL_INIT_LANGUAGE_SPECIFIC(symbol,language) \
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do { \
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SYMBOL_LANGUAGE (symbol) = language; \
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if (SYMBOL_LANGUAGE (symbol) == language_cplus \
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|| SYMBOL_LANGUAGE (symbol) == language_java \
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) \
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{ \
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SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
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} \
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else if (SYMBOL_LANGUAGE (symbol) == language_chill) \
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{ \
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SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \
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} \
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else \
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{ \
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memset (&(symbol)->ginfo.language_specific, 0, \
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sizeof ((symbol)->ginfo.language_specific)); \
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} \
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} while (0)
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/* Macro that attempts to initialize the demangled name for a symbol,
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based on the language of that symbol. If the language is set to
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language_auto, it will attempt to find any demangling algorithm
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that works and then set the language appropriately. If no demangling
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of any kind is found, the language is set back to language_unknown,
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so we can avoid doing this work again the next time we encounter
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the symbol. Any required space to store the name is obtained from the
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specified obstack. */
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#define SYMBOL_INIT_DEMANGLED_NAME(symbol,obstack) \
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do { \
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char *demangled = NULL; \
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if (SYMBOL_LANGUAGE (symbol) == language_unknown) \
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SYMBOL_LANGUAGE (symbol) = language_auto; \
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if (SYMBOL_LANGUAGE (symbol) == language_cplus \
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|| SYMBOL_LANGUAGE (symbol) == language_auto) \
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{ \
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demangled = \
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cplus_demangle (SYMBOL_NAME (symbol), DMGL_PARAMS | DMGL_ANSI);\
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if (demangled != NULL) \
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{ \
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SYMBOL_LANGUAGE (symbol) = language_cplus; \
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SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = \
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obsavestring (demangled, strlen (demangled), (obstack)); \
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free (demangled); \
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} \
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else \
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{ \
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SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
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} \
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} \
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if (SYMBOL_LANGUAGE (symbol) == language_java) \
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{ \
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demangled = \
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cplus_demangle (SYMBOL_NAME (symbol), \
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DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); \
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if (demangled != NULL) \
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{ \
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SYMBOL_LANGUAGE (symbol) = language_java; \
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SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = \
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obsavestring (demangled, strlen (demangled), (obstack)); \
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free (demangled); \
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} \
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else \
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{ \
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SYMBOL_CPLUS_DEMANGLED_NAME (symbol) = NULL; \
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} \
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} \
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if (demangled == NULL \
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&& (SYMBOL_LANGUAGE (symbol) == language_chill \
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|| SYMBOL_LANGUAGE (symbol) == language_auto)) \
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{ \
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demangled = \
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chill_demangle (SYMBOL_NAME (symbol)); \
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if (demangled != NULL) \
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{ \
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SYMBOL_LANGUAGE (symbol) = language_chill; \
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SYMBOL_CHILL_DEMANGLED_NAME (symbol) = \
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obsavestring (demangled, strlen (demangled), (obstack)); \
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free (demangled); \
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} \
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else \
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||
{ \
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SYMBOL_CHILL_DEMANGLED_NAME (symbol) = NULL; \
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} \
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} \
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} while (0)
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/* Macro that returns the demangled name for a symbol based on the language
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for that symbol. If no demangled name exists, returns NULL. */
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#define SYMBOL_DEMANGLED_NAME(symbol) \
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(SYMBOL_LANGUAGE (symbol) == language_cplus \
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|| SYMBOL_LANGUAGE (symbol) == language_java \
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? SYMBOL_CPLUS_DEMANGLED_NAME (symbol) \
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: (SYMBOL_LANGUAGE (symbol) == language_chill \
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? SYMBOL_CHILL_DEMANGLED_NAME (symbol) \
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: NULL))
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||
|
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#define SYMBOL_CHILL_DEMANGLED_NAME(symbol) \
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(symbol)->ginfo.language_specific.chill_specific.demangled_name
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||
/* Macro that returns the "natural source name" of a symbol. In C++ this is
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||
the "demangled" form of the name if demangle is on and the "mangled" form
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of the name if demangle is off. In other languages this is just the
|
||
symbol name. The result should never be NULL. */
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#define SYMBOL_SOURCE_NAME(symbol) \
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(demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \
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? SYMBOL_DEMANGLED_NAME (symbol) \
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: SYMBOL_NAME (symbol))
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|
||
/* Macro that returns the "natural assembly name" of a symbol. In C++ this is
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the "mangled" form of the name if demangle is off, or if demangle is on and
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asm_demangle is off. Otherwise if asm_demangle is on it is the "demangled"
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form. In other languages this is just the symbol name. The result should
|
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never be NULL. */
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||
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#define SYMBOL_LINKAGE_NAME(symbol) \
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(demangle && asm_demangle && SYMBOL_DEMANGLED_NAME (symbol) != NULL \
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? SYMBOL_DEMANGLED_NAME (symbol) \
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||
: SYMBOL_NAME (symbol))
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|
||
/* Macro that tests a symbol for a match against a specified name string.
|
||
First test the unencoded name, then looks for and test a C++ encoded
|
||
name if it exists. Note that whitespace is ignored while attempting to
|
||
match a C++ encoded name, so that "foo::bar(int,long)" is the same as
|
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"foo :: bar (int, long)".
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||
Evaluates to zero if the match fails, or nonzero if it succeeds. */
|
||
|
||
#define SYMBOL_MATCHES_NAME(symbol, name) \
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(STREQ (SYMBOL_NAME (symbol), (name)) \
|
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|| (SYMBOL_DEMANGLED_NAME (symbol) != NULL \
|
||
&& strcmp_iw (SYMBOL_DEMANGLED_NAME (symbol), (name)) == 0))
|
||
|
||
/* Macro that tests a symbol for an re-match against the last compiled regular
|
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expression. First test the unencoded name, then look for and test a C++
|
||
encoded name if it exists.
|
||
Evaluates to zero if the match fails, or nonzero if it succeeds. */
|
||
|
||
#define SYMBOL_MATCHES_REGEXP(symbol) \
|
||
(re_exec (SYMBOL_NAME (symbol)) != 0 \
|
||
|| (SYMBOL_DEMANGLED_NAME (symbol) != NULL \
|
||
&& re_exec (SYMBOL_DEMANGLED_NAME (symbol)) != 0))
|
||
|
||
/* Define a simple structure used to hold some very basic information about
|
||
all defined global symbols (text, data, bss, abs, etc). The only required
|
||
information is the general_symbol_info.
|
||
|
||
In many cases, even if a file was compiled with no special options for
|
||
debugging at all, as long as was not stripped it will contain sufficient
|
||
information to build a useful minimal symbol table using this structure.
|
||
Even when a file contains enough debugging information to build a full
|
||
symbol table, these minimal symbols are still useful for quickly mapping
|
||
between names and addresses, and vice versa. They are also sometimes
|
||
used to figure out what full symbol table entries need to be read in. */
|
||
|
||
struct minimal_symbol
|
||
{
|
||
|
||
/* The general symbol info required for all types of symbols.
|
||
|
||
The SYMBOL_VALUE_ADDRESS contains the address that this symbol
|
||
corresponds to. */
|
||
|
||
struct general_symbol_info ginfo;
|
||
|
||
/* 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;
|
||
|
||
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
|
||
/* Which source file is this symbol in? Only relevant for mst_file_*. */
|
||
char *filename;
|
||
#endif
|
||
|
||
/* Classification types for this symbol. These should be taken as "advisory
|
||
only", since if gdb can't easily figure out a classification it simply
|
||
selects mst_unknown. It may also have to guess when it can't figure out
|
||
which is a better match between two types (mst_data versus mst_bss) for
|
||
example. Since the minimal symbol info is sometimes derived from the
|
||
BFD library's view of a file, we need to live with what information bfd
|
||
supplies. */
|
||
|
||
enum minimal_symbol_type
|
||
{
|
||
mst_unknown = 0, /* Unknown type, the default */
|
||
mst_text, /* Generally executable instructions */
|
||
mst_data, /* Generally initialized data */
|
||
mst_bss, /* Generally uninitialized data */
|
||
mst_abs, /* Generally absolute (nonrelocatable) */
|
||
/* GDB uses mst_solib_trampoline for the start address of a shared
|
||
library trampoline entry. Breakpoints for shared library functions
|
||
are put there if the shared library is not yet loaded.
|
||
After the shared library is loaded, lookup_minimal_symbol will
|
||
prefer the minimal symbol from the shared library (usually
|
||
a mst_text symbol) over the mst_solib_trampoline symbol, and the
|
||
breakpoints will be moved to their true address in the shared
|
||
library via breakpoint_re_set. */
|
||
mst_solib_trampoline, /* Shared library trampoline code */
|
||
/* For the mst_file* types, the names are only guaranteed to be unique
|
||
within a given .o file. */
|
||
mst_file_text, /* Static version of mst_text */
|
||
mst_file_data, /* Static version of mst_data */
|
||
mst_file_bss /* Static version of mst_bss */
|
||
}
|
||
type BYTE_BITFIELD;
|
||
|
||
/* Minimal symbols with the same hash key are kept on a linked
|
||
list. This is the link. */
|
||
|
||
struct minimal_symbol *hash_next;
|
||
|
||
/* Minimal symbols are stored in two different hash tables. This is
|
||
the `next' pointer for the demangled hash table. */
|
||
|
||
struct minimal_symbol *demangled_hash_next;
|
||
};
|
||
|
||
#define MSYMBOL_INFO(msymbol) (msymbol)->info
|
||
#define MSYMBOL_TYPE(msymbol) (msymbol)->type
|
||
|
||
|
||
|
||
/* All of the name-scope contours of the program
|
||
are represented by `struct block' objects.
|
||
All of these objects are pointed to by the blockvector.
|
||
|
||
Each block represents one name scope.
|
||
Each lexical context has its own block.
|
||
|
||
The blockvector begins with some special blocks.
|
||
The GLOBAL_BLOCK contains all the symbols defined in this compilation
|
||
whose scope is the entire program linked together.
|
||
The STATIC_BLOCK contains all the symbols whose scope is the
|
||
entire compilation excluding other separate compilations.
|
||
Blocks starting with the FIRST_LOCAL_BLOCK are not special.
|
||
|
||
Each block records a range of core addresses for the code that
|
||
is in the scope of the block. The STATIC_BLOCK and GLOBAL_BLOCK
|
||
give, for the range of code, the entire range of code produced
|
||
by the compilation that the symbol segment belongs to.
|
||
|
||
The blocks appear in the blockvector
|
||
in order of increasing starting-address,
|
||
and, within that, in order of decreasing ending-address.
|
||
|
||
This implies that within the body of one function
|
||
the blocks appear in the order of a depth-first tree walk. */
|
||
|
||
struct blockvector
|
||
{
|
||
/* Number of blocks in the list. */
|
||
int nblocks;
|
||
/* The blocks themselves. */
|
||
struct block *block[1];
|
||
};
|
||
|
||
#define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks
|
||
#define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n]
|
||
|
||
/* Special block numbers */
|
||
|
||
#define GLOBAL_BLOCK 0
|
||
#define STATIC_BLOCK 1
|
||
#define FIRST_LOCAL_BLOCK 2
|
||
|
||
struct block
|
||
{
|
||
|
||
/* Addresses in the executable code that are in this block. */
|
||
|
||
CORE_ADDR startaddr;
|
||
CORE_ADDR endaddr;
|
||
|
||
/* The symbol that names this block, if the block is the body of a
|
||
function; otherwise, zero. */
|
||
|
||
struct symbol *function;
|
||
|
||
/* The `struct block' for the containing block, or 0 if none.
|
||
|
||
The superblock of a top-level local block (i.e. a function in the
|
||
case of C) is the STATIC_BLOCK. The superblock of the
|
||
STATIC_BLOCK is the GLOBAL_BLOCK. */
|
||
|
||
struct block *superblock;
|
||
|
||
/* Version of GCC used to compile the function corresponding
|
||
to this block, or 0 if not compiled with GCC. When possible,
|
||
GCC should be compatible with the native compiler, or if that
|
||
is not feasible, the differences should be fixed during symbol
|
||
reading. As of 16 Apr 93, this flag is never used to distinguish
|
||
between gcc2 and the native compiler.
|
||
|
||
If there is no function corresponding to this block, this meaning
|
||
of this flag is undefined. */
|
||
|
||
unsigned char gcc_compile_flag;
|
||
|
||
/* Number of local symbols. */
|
||
|
||
int nsyms;
|
||
|
||
/* The symbols. If some of them are arguments, then they must be
|
||
in the order in which we would like to print them. */
|
||
|
||
struct symbol *sym[1];
|
||
};
|
||
|
||
#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
|
||
|
||
/* 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. */
|
||
|
||
#define BLOCK_SHOULD_SORT(bl) ((bl)->nsyms >= 40 && BLOCK_FUNCTION (bl) == NULL)
|
||
|
||
|
||
/* Represent one symbol name; a variable, constant, function or typedef. */
|
||
|
||
/* Different name spaces for symbols. Looking up a symbol specifies a
|
||
namespace and ignores symbol definitions in other name spaces. */
|
||
|
||
typedef enum
|
||
{
|
||
/* UNDEF_NAMESPACE is used when a namespace has not been discovered or
|
||
none of the following apply. This usually indicates an error either
|
||
in the symbol information or in gdb's handling of symbols. */
|
||
|
||
UNDEF_NAMESPACE,
|
||
|
||
/* VAR_NAMESPACE is the usual namespace. In C, this contains variables,
|
||
function names, typedef names and enum type values. */
|
||
|
||
VAR_NAMESPACE,
|
||
|
||
/* STRUCT_NAMESPACE is used in C to hold struct, union and enum type names.
|
||
Thus, if `struct foo' is used in a C program, it produces a symbol named
|
||
`foo' in the STRUCT_NAMESPACE. */
|
||
|
||
STRUCT_NAMESPACE,
|
||
|
||
/* 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,
|
||
|
||
/* 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. */
|
||
|
||
enum address_class
|
||
{
|
||
/* Not used; catches errors */
|
||
|
||
LOC_UNDEF,
|
||
|
||
/* Value is constant int SYMBOL_VALUE, host byteorder */
|
||
|
||
LOC_CONST,
|
||
|
||
/* Value is at fixed address SYMBOL_VALUE_ADDRESS */
|
||
|
||
LOC_STATIC,
|
||
|
||
/* Value is in register. SYMBOL_VALUE is the register number. */
|
||
|
||
LOC_REGISTER,
|
||
|
||
/* It's an argument; the value is at SYMBOL_VALUE offset in arglist. */
|
||
|
||
LOC_ARG,
|
||
|
||
/* Value address is at SYMBOL_VALUE offset in arglist. */
|
||
|
||
LOC_REF_ARG,
|
||
|
||
/* Value is in register number SYMBOL_VALUE. Just like LOC_REGISTER
|
||
except this is an argument. Probably the cleaner way to handle
|
||
this would be to separate address_class (which would include
|
||
separate ARG and LOCAL to deal with FRAME_ARGS_ADDRESS versus
|
||
FRAME_LOCALS_ADDRESS), and an is_argument flag.
|
||
|
||
For some symbol formats (stabs, for some compilers at least),
|
||
the compiler generates two symbols, an argument and a register.
|
||
In some cases we combine them to a single LOC_REGPARM in symbol
|
||
reading, but currently not for all cases (e.g. it's passed on the
|
||
stack and then loaded into a register). */
|
||
|
||
LOC_REGPARM,
|
||
|
||
/* Value is in specified register. Just like LOC_REGPARM except the
|
||
register holds the address of the argument instead of the argument
|
||
itself. This is currently used for the passing of structs and unions
|
||
on sparc and hppa. It is also used for call by reference where the
|
||
address is in a register, at least by mipsread.c. */
|
||
|
||
LOC_REGPARM_ADDR,
|
||
|
||
/* Value is a local variable at SYMBOL_VALUE offset in stack frame. */
|
||
|
||
LOC_LOCAL,
|
||
|
||
/* Value not used; definition in SYMBOL_TYPE. Symbols in the namespace
|
||
STRUCT_NAMESPACE all have this class. */
|
||
|
||
LOC_TYPEDEF,
|
||
|
||
/* Value is address SYMBOL_VALUE_ADDRESS in the code */
|
||
|
||
LOC_LABEL,
|
||
|
||
/* In a symbol table, value is SYMBOL_BLOCK_VALUE of a `struct block'.
|
||
In a partial symbol table, SYMBOL_VALUE_ADDRESS is the start address
|
||
of the block. Function names have this class. */
|
||
|
||
LOC_BLOCK,
|
||
|
||
/* Value is a constant byte-sequence pointed to by SYMBOL_VALUE_BYTES, in
|
||
target byte order. */
|
||
|
||
LOC_CONST_BYTES,
|
||
|
||
/* Value is arg at SYMBOL_VALUE offset in stack frame. Differs from
|
||
LOC_LOCAL in that symbol is an argument; differs from LOC_ARG in
|
||
that we find it in the frame (FRAME_LOCALS_ADDRESS), not in the
|
||
arglist (FRAME_ARGS_ADDRESS). Added for i960, which passes args
|
||
in regs then copies to frame. */
|
||
|
||
LOC_LOCAL_ARG,
|
||
|
||
/* Value is at SYMBOL_VALUE offset from the current value of
|
||
register number SYMBOL_BASEREG. This exists mainly for the same
|
||
things that LOC_LOCAL and LOC_ARG do; but we need to do this
|
||
instead because on 88k DWARF gives us the offset from the
|
||
frame/stack pointer, rather than the offset from the "canonical
|
||
frame address" used by COFF, stabs, etc., and we don't know how
|
||
to convert between these until we start examining prologues.
|
||
|
||
Note that LOC_BASEREG is much less general than a DWARF expression.
|
||
We don't need the generality (at least not yet), and storing a general
|
||
DWARF expression would presumably take up more space than the existing
|
||
scheme. */
|
||
|
||
LOC_BASEREG,
|
||
|
||
/* Same as LOC_BASEREG but it is an argument. */
|
||
|
||
LOC_BASEREG_ARG,
|
||
|
||
/* Value is at fixed address, but the address of the variable has
|
||
to be determined from the minimal symbol table whenever the
|
||
variable is referenced.
|
||
This happens if debugging information for a global symbol is
|
||
emitted and the corresponding minimal symbol is defined
|
||
in another object file or runtime common storage.
|
||
The linker might even remove the minimal symbol if the global
|
||
symbol is never referenced, in which case the symbol remains
|
||
unresolved. */
|
||
|
||
LOC_UNRESOLVED,
|
||
|
||
/* Value is at a thread-specific location calculated by a
|
||
target-specific method. */
|
||
|
||
LOC_THREAD_LOCAL_STATIC,
|
||
|
||
/* The variable does not actually exist in the program.
|
||
The value is ignored. */
|
||
|
||
LOC_OPTIMIZED_OUT,
|
||
|
||
/* The variable is static, but actually lives at * (address).
|
||
* I.e. do an extra indirection to get to it.
|
||
* This is used on HP-UX to get at globals that are allocated
|
||
* in shared libraries, where references from images other
|
||
* than the one where the global was allocated are done
|
||
* with a level of indirection.
|
||
*/
|
||
|
||
LOC_INDIRECT
|
||
|
||
};
|
||
|
||
/* Linked list of symbol's live ranges. */
|
||
|
||
struct range_list
|
||
{
|
||
CORE_ADDR start;
|
||
CORE_ADDR end;
|
||
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
|
||
{
|
||
|
||
/* The general symbol info required for all types of symbols. */
|
||
|
||
struct general_symbol_info ginfo;
|
||
|
||
/* Data type of value */
|
||
|
||
struct type *type;
|
||
|
||
/* Name space code. */
|
||
|
||
#ifdef __MFC4__
|
||
/* FIXME: don't conflict with C++'s namespace */
|
||
/* would be safer to do a global change for all namespace identifiers. */
|
||
#define namespace _namespace
|
||
#endif
|
||
namespace_enum namespace BYTE_BITFIELD;
|
||
|
||
/* Address class */
|
||
|
||
enum address_class aclass BYTE_BITFIELD;
|
||
|
||
/* Line number of definition. FIXME: Should we really make the assumption
|
||
that nobody will try to debug files longer than 64K lines? What about
|
||
machine generated programs? */
|
||
|
||
unsigned short line;
|
||
|
||
/* Some symbols require an additional value to be recorded on a per-
|
||
symbol basis. Stash those values here. */
|
||
|
||
union
|
||
{
|
||
/* Used by LOC_BASEREG and LOC_BASEREG_ARG. */
|
||
short basereg;
|
||
}
|
||
aux_value;
|
||
|
||
|
||
/* 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)->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
|
||
contains their memory address, so we can find them from a PC value.
|
||
Each partial_symbol sits in a partial_symtab, all of which are chained
|
||
on a partial symtab list and which points to the corresponding
|
||
normal symtab once the partial_symtab has been referenced. */
|
||
|
||
struct partial_symbol
|
||
{
|
||
|
||
/* The general symbol info required for all types of symbols. */
|
||
|
||
struct general_symbol_info ginfo;
|
||
|
||
/* Name space code. */
|
||
|
||
namespace_enum namespace BYTE_BITFIELD;
|
||
|
||
/* Address class (for info_symbols) */
|
||
|
||
enum address_class aclass BYTE_BITFIELD;
|
||
|
||
};
|
||
|
||
#define PSYMBOL_NAMESPACE(psymbol) (psymbol)->namespace
|
||
#define PSYMBOL_CLASS(psymbol) (psymbol)->aclass
|
||
|
||
|
||
/* Source-file information. This describes the relation between source files,
|
||
line numbers and addresses in the program text. */
|
||
|
||
struct sourcevector
|
||
{
|
||
int length; /* Number of source files described */
|
||
struct source *source[1]; /* Descriptions of the files */
|
||
};
|
||
|
||
/* Each item represents a line-->pc (or the reverse) mapping. This is
|
||
somewhat more wasteful of space than one might wish, but since only
|
||
the files which are actually debugged are read in to core, we don't
|
||
waste much space. */
|
||
|
||
struct linetable_entry
|
||
{
|
||
int line;
|
||
CORE_ADDR pc;
|
||
};
|
||
|
||
/* The order of entries in the linetable is significant. They should
|
||
be sorted by increasing values of the pc field. If there is more than
|
||
one entry for a given pc, then I'm not sure what should happen (and
|
||
I not sure whether we currently handle it the best way).
|
||
|
||
Example: a C for statement generally looks like this
|
||
|
||
10 0x100 - for the init/test part of a for stmt.
|
||
20 0x200
|
||
30 0x300
|
||
10 0x400 - for the increment part of a for stmt.
|
||
|
||
*/
|
||
|
||
struct linetable
|
||
{
|
||
int nitems;
|
||
|
||
/* Actually NITEMS elements. If you don't like this use of the
|
||
`struct hack', you can shove it up your ANSI (seriously, if the
|
||
committee tells us how to do it, we can probably go along). */
|
||
struct linetable_entry item[1];
|
||
};
|
||
|
||
/* All the information on one source file. */
|
||
|
||
struct source
|
||
{
|
||
char *name; /* Name of file */
|
||
struct linetable contents;
|
||
};
|
||
|
||
/* How to relocate the symbols from each section in a symbol file.
|
||
Each struct contains an array of offsets.
|
||
The ordering and meaning of the offsets is file-type-dependent;
|
||
typically it is indexed by section numbers or symbol types or
|
||
something like that.
|
||
|
||
To give us flexibility in changing the internal representation
|
||
of these offsets, the ANOFFSET macro must be used to insert and
|
||
extract offset values in the struct. */
|
||
|
||
struct section_offsets
|
||
{
|
||
CORE_ADDR offsets[1]; /* As many as needed. */
|
||
};
|
||
|
||
#define ANOFFSET(secoff, whichone) \
|
||
((whichone == -1) ? \
|
||
(internal_error ("Section index is uninitialized"), -1) : secoff->offsets[whichone])
|
||
|
||
/* The maximum possible size of a section_offsets table. */
|
||
|
||
#define SIZEOF_SECTION_OFFSETS \
|
||
(sizeof (struct section_offsets) \
|
||
+ sizeof (((struct section_offsets *) 0)->offsets) * (SECT_OFF_MAX-1))
|
||
|
||
/* Each source file or header is represented by a struct symtab.
|
||
These objects are chained through the `next' field. */
|
||
|
||
struct symtab
|
||
{
|
||
|
||
/* Chain of all existing symtabs. */
|
||
|
||
struct symtab *next;
|
||
|
||
/* List of all symbol scope blocks for this symtab. May be shared
|
||
between different symtabs (and normally is for all the symtabs
|
||
in a given compilation unit). */
|
||
|
||
struct blockvector *blockvector;
|
||
|
||
/* Table mapping core addresses to line numbers for this file.
|
||
Can be NULL if none. Never shared between different symtabs. */
|
||
|
||
struct linetable *linetable;
|
||
|
||
/* Section in objfile->section_offsets for the blockvector and
|
||
the linetable. Probably always SECT_OFF_TEXT. */
|
||
|
||
int block_line_section;
|
||
|
||
/* If several symtabs share a blockvector, exactly one of them
|
||
should be designated the primary, so that the blockvector
|
||
is relocated exactly once by objfile_relocate. */
|
||
|
||
int primary;
|
||
|
||
/* Name of this source file. */
|
||
|
||
char *filename;
|
||
|
||
/* Directory in which it was compiled, or NULL if we don't know. */
|
||
|
||
char *dirname;
|
||
|
||
/* This component says how to free the data we point to:
|
||
free_contents => do a tree walk and free each object.
|
||
free_nothing => do nothing; some other symtab will free
|
||
the data this one uses.
|
||
free_linetable => free just the linetable. FIXME: Is this redundant
|
||
with the primary field? */
|
||
|
||
enum free_code
|
||
{
|
||
free_nothing, free_contents, free_linetable
|
||
}
|
||
free_code;
|
||
|
||
/* Pointer to one block of storage to be freed, if nonzero. */
|
||
/* This is IN ADDITION to the action indicated by free_code. */
|
||
|
||
char *free_ptr;
|
||
|
||
/* Total number of lines found in source file. */
|
||
|
||
int nlines;
|
||
|
||
/* line_charpos[N] is the position of the (N-1)th line of the
|
||
source file. "position" means something we can lseek() to; it
|
||
is not guaranteed to be useful any other way. */
|
||
|
||
int *line_charpos;
|
||
|
||
/* Language of this source file. */
|
||
|
||
enum language language;
|
||
|
||
/* String that identifies the format of the debugging information, such
|
||
as "stabs", "dwarf 1", "dwarf 2", "coff", etc. This is mostly useful
|
||
for automated testing of gdb but may also be information that is
|
||
useful to the user. */
|
||
|
||
char *debugformat;
|
||
|
||
/* String of version information. May be zero. */
|
||
|
||
char *version;
|
||
|
||
/* Full name of file as found by searching the source path.
|
||
NULL if not yet known. */
|
||
|
||
char *fullname;
|
||
|
||
/* Object file from which this symbol information was read. */
|
||
|
||
struct objfile *objfile;
|
||
|
||
};
|
||
|
||
#define BLOCKVECTOR(symtab) (symtab)->blockvector
|
||
#define LINETABLE(symtab) (symtab)->linetable
|
||
|
||
|
||
/* Each source file that has not been fully read in is represented by
|
||
a partial_symtab. This contains the information on where in the
|
||
executable the debugging symbols for a specific file are, and a
|
||
list of names of global symbols which are located in this file.
|
||
They are all chained on partial symtab lists.
|
||
|
||
Even after the source file has been read into a symtab, the
|
||
partial_symtab remains around. They are allocated on an obstack,
|
||
psymbol_obstack. FIXME, this is bad for dynamic linking or VxWorks-
|
||
style execution of a bunch of .o's. */
|
||
|
||
struct partial_symtab
|
||
{
|
||
|
||
/* Chain of all existing partial symtabs. */
|
||
|
||
struct partial_symtab *next;
|
||
|
||
/* Name of the source file which this partial_symtab defines */
|
||
|
||
char *filename;
|
||
|
||
/* Information about the object file from which symbols should be read. */
|
||
|
||
struct objfile *objfile;
|
||
|
||
/* Set of relocation offsets to apply to each section. */
|
||
|
||
struct section_offsets *section_offsets;
|
||
|
||
/* Range of text addresses covered by this file; texthigh is the
|
||
beginning of the next section. */
|
||
|
||
CORE_ADDR textlow;
|
||
CORE_ADDR texthigh;
|
||
|
||
/* Array of pointers to all of the partial_symtab's which this one
|
||
depends on. Since this array can only be set to previous or
|
||
the current (?) psymtab, this dependency tree is guaranteed not
|
||
to have any loops. "depends on" means that symbols must be read
|
||
for the dependencies before being read for this psymtab; this is
|
||
for type references in stabs, where if foo.c includes foo.h, declarations
|
||
in foo.h may use type numbers defined in foo.c. For other debugging
|
||
formats there may be no need to use dependencies. */
|
||
|
||
struct partial_symtab **dependencies;
|
||
|
||
int number_of_dependencies;
|
||
|
||
/* Global symbol list. This list will be sorted after readin to
|
||
improve access. Binary search will be the usual method of
|
||
finding a symbol within it. globals_offset is an integer offset
|
||
within global_psymbols[]. */
|
||
|
||
int globals_offset;
|
||
int n_global_syms;
|
||
|
||
/* Static symbol list. This list will *not* be sorted after readin;
|
||
to find a symbol in it, exhaustive search must be used. This is
|
||
reasonable because searches through this list will eventually
|
||
lead to either the read in of a files symbols for real (assumed
|
||
to take a *lot* of time; check) or an error (and we don't care
|
||
how long errors take). This is an offset and size within
|
||
static_psymbols[]. */
|
||
|
||
int statics_offset;
|
||
int n_static_syms;
|
||
|
||
/* Pointer to symtab eventually allocated for this source file, 0 if
|
||
!readin or if we haven't looked for the symtab after it was readin. */
|
||
|
||
struct symtab *symtab;
|
||
|
||
/* Pointer to function which will read in the symtab corresponding to
|
||
this psymtab. */
|
||
|
||
void (*read_symtab) (struct partial_symtab *);
|
||
|
||
/* Information that lets read_symtab() locate the part of the symbol table
|
||
that this psymtab corresponds to. This information is private to the
|
||
format-dependent symbol reading routines. For further detail examine
|
||
the various symbol reading modules. Should really be (void *) but is
|
||
(char *) as with other such gdb variables. (FIXME) */
|
||
|
||
char *read_symtab_private;
|
||
|
||
/* Non-zero if the symtab corresponding to this psymtab has been readin */
|
||
|
||
unsigned char readin;
|
||
};
|
||
|
||
/* A fast way to get from a psymtab to its symtab (after the first time). */
|
||
#define PSYMTAB_TO_SYMTAB(pst) \
|
||
((pst) -> symtab != NULL ? (pst) -> symtab : psymtab_to_symtab (pst))
|
||
|
||
|
||
/* The virtual function table is now an array of structures which have the
|
||
form { int16 offset, delta; void *pfn; }.
|
||
|
||
In normal virtual function tables, OFFSET is unused.
|
||
DELTA is the amount which is added to the apparent object's base
|
||
address in order to point to the actual object to which the
|
||
virtual function should be applied.
|
||
PFN is a pointer to the virtual function.
|
||
|
||
Note that this macro is g++ specific (FIXME). */
|
||
|
||
#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! */
|
||
#define OPNAME_PREFIX_P(NAME) \
|
||
(!strncmp (NAME, "operator", 8))
|
||
|
||
/* 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] == '_')
|
||
|
||
|
||
/* External variables and functions for the objects described above. */
|
||
|
||
/* This symtab variable specifies the current file for printing source lines */
|
||
|
||
extern struct symtab *current_source_symtab;
|
||
|
||
/* This is the next line to print for listing source lines. */
|
||
|
||
extern int current_source_line;
|
||
|
||
/* See the comment in symfile.c about how current_objfile is used. */
|
||
|
||
extern struct objfile *current_objfile;
|
||
|
||
/* True if we are nested inside psymtab_to_symtab. */
|
||
|
||
extern int currently_reading_symtab;
|
||
|
||
/* From utils.c. */
|
||
extern int demangle;
|
||
extern int asm_demangle;
|
||
|
||
/* symtab.c lookup functions */
|
||
|
||
/* lookup a symbol table by source file name */
|
||
|
||
extern struct symtab *lookup_symtab (char *);
|
||
|
||
/* lookup a symbol by name (optional block, optional symtab) */
|
||
|
||
extern struct symbol *lookup_symbol (const char *, const struct block *,
|
||
const namespace_enum, int *,
|
||
struct symtab **);
|
||
|
||
/* lookup a symbol by name, within a specified block */
|
||
|
||
extern struct symbol *lookup_block_symbol (const struct block *, const char *,
|
||
const namespace_enum);
|
||
|
||
/* lookup a [struct, union, enum] by name, within a specified block */
|
||
|
||
extern struct type *lookup_struct (char *, struct block *);
|
||
|
||
extern struct type *lookup_union (char *, struct block *);
|
||
|
||
extern struct type *lookup_enum (char *, struct block *);
|
||
|
||
/* lookup the function corresponding to the block */
|
||
|
||
extern struct symbol *block_function (struct block *);
|
||
|
||
/* from blockframe.c: */
|
||
|
||
/* lookup the function symbol corresponding to the address */
|
||
|
||
extern struct symbol *find_pc_function (CORE_ADDR);
|
||
|
||
/* lookup the function corresponding to the address and section */
|
||
|
||
extern struct symbol *find_pc_sect_function (CORE_ADDR, asection *);
|
||
|
||
/* lookup function from address, return name, start addr and end addr */
|
||
|
||
extern int
|
||
find_pc_partial_function (CORE_ADDR, char **, CORE_ADDR *, CORE_ADDR *);
|
||
|
||
extern void clear_pc_function_cache (void);
|
||
|
||
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 *);
|
||
|
||
/* lookup partial symbol table by address */
|
||
|
||
extern struct partial_symtab *find_pc_psymtab (CORE_ADDR);
|
||
|
||
/* lookup partial symbol table by address and section */
|
||
|
||
extern struct partial_symtab *find_pc_sect_psymtab (CORE_ADDR, asection *);
|
||
|
||
/* lookup full symbol table by address */
|
||
|
||
extern struct symtab *find_pc_symtab (CORE_ADDR);
|
||
|
||
/* lookup full symbol table by address and section */
|
||
|
||
extern struct symtab *find_pc_sect_symtab (CORE_ADDR, asection *);
|
||
|
||
/* lookup partial symbol by address */
|
||
|
||
extern struct partial_symbol *find_pc_psymbol (struct partial_symtab *,
|
||
CORE_ADDR);
|
||
|
||
/* lookup partial symbol by address and section */
|
||
|
||
extern struct partial_symbol *find_pc_sect_psymbol (struct partial_symtab *,
|
||
CORE_ADDR, asection *);
|
||
|
||
extern int find_pc_line_pc_range (CORE_ADDR, CORE_ADDR *, CORE_ADDR *);
|
||
|
||
extern int contained_in (struct block *, struct block *);
|
||
|
||
extern void reread_symbols (void);
|
||
|
||
extern struct type *lookup_transparent_type (const char *);
|
||
|
||
|
||
/* Macro for name of symbol to indicate a file compiled with gcc. */
|
||
#ifndef GCC_COMPILED_FLAG_SYMBOL
|
||
#define GCC_COMPILED_FLAG_SYMBOL "gcc_compiled."
|
||
#endif
|
||
|
||
/* Macro for name of symbol to indicate a file compiled with gcc2. */
|
||
#ifndef GCC2_COMPILED_FLAG_SYMBOL
|
||
#define GCC2_COMPILED_FLAG_SYMBOL "gcc2_compiled."
|
||
#endif
|
||
|
||
/* Functions for dealing with the minimal symbol table, really a misc
|
||
address<->symbol mapping for things we don't have debug symbols for. */
|
||
|
||
extern void prim_record_minimal_symbol (const char *, CORE_ADDR,
|
||
enum minimal_symbol_type,
|
||
struct objfile *);
|
||
|
||
extern struct minimal_symbol *prim_record_minimal_symbol_and_info
|
||
(const char *, CORE_ADDR,
|
||
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 void
|
||
add_minsym_to_hash_table (struct minimal_symbol *sym,
|
||
struct minimal_symbol **table);
|
||
|
||
extern struct minimal_symbol *lookup_minimal_symbol (const char *,
|
||
const char *,
|
||
struct objfile *);
|
||
|
||
extern struct minimal_symbol *lookup_minimal_symbol_text (const char *,
|
||
const char *,
|
||
struct objfile *);
|
||
|
||
struct minimal_symbol *lookup_minimal_symbol_solib_trampoline (const char *,
|
||
const char *,
|
||
struct objfile
|
||
*);
|
||
|
||
extern struct minimal_symbol *lookup_minimal_symbol_by_pc (CORE_ADDR);
|
||
|
||
extern struct minimal_symbol *lookup_minimal_symbol_by_pc_section (CORE_ADDR,
|
||
asection
|
||
*);
|
||
|
||
extern struct minimal_symbol
|
||
*lookup_solib_trampoline_symbol_by_pc (CORE_ADDR);
|
||
|
||
extern CORE_ADDR find_solib_trampoline_target (CORE_ADDR);
|
||
|
||
extern void init_minimal_symbol_collection (void);
|
||
|
||
extern struct cleanup *make_cleanup_discard_minimal_symbols (void);
|
||
|
||
extern void install_minimal_symbols (struct objfile *);
|
||
|
||
/* Sort all the minimal symbols in OBJFILE. */
|
||
|
||
extern void msymbols_sort (struct objfile *objfile);
|
||
|
||
struct symtab_and_line
|
||
{
|
||
struct symtab *symtab;
|
||
asection *section;
|
||
/* Line number. Line numbers start at 1 and proceed through symtab->nlines.
|
||
0 is never a valid line number; it is used to indicate that line number
|
||
information is not available. */
|
||
int line;
|
||
|
||
CORE_ADDR pc;
|
||
CORE_ADDR end;
|
||
};
|
||
|
||
#define INIT_SAL(sal) { \
|
||
(sal)->symtab = 0; \
|
||
(sal)->section = 0; \
|
||
(sal)->line = 0; \
|
||
(sal)->pc = 0; \
|
||
(sal)->end = 0; \
|
||
}
|
||
|
||
struct symtabs_and_lines
|
||
{
|
||
struct symtab_and_line *sals;
|
||
int nelts;
|
||
};
|
||
|
||
|
||
|
||
/* Some types and macros needed for exception catchpoints.
|
||
Can't put these in target.h because symtab_and_line isn't
|
||
known there. This file will be included by breakpoint.c,
|
||
hppa-tdep.c, etc. */
|
||
|
||
/* Enums for exception-handling support */
|
||
enum exception_event_kind
|
||
{
|
||
EX_EVENT_THROW,
|
||
EX_EVENT_CATCH
|
||
};
|
||
|
||
/* Type for returning info about an exception */
|
||
struct exception_event_record
|
||
{
|
||
enum exception_event_kind kind;
|
||
struct symtab_and_line throw_sal;
|
||
struct symtab_and_line catch_sal;
|
||
/* This may need to be extended in the future, if
|
||
some platforms allow reporting more information,
|
||
such as point of rethrow, type of exception object,
|
||
type expected by catch clause, etc. */
|
||
};
|
||
|
||
#define CURRENT_EXCEPTION_KIND (current_exception_event->kind)
|
||
#define CURRENT_EXCEPTION_CATCH_SAL (current_exception_event->catch_sal)
|
||
#define CURRENT_EXCEPTION_CATCH_LINE (current_exception_event->catch_sal.line)
|
||
#define CURRENT_EXCEPTION_CATCH_FILE (current_exception_event->catch_sal.symtab->filename)
|
||
#define CURRENT_EXCEPTION_CATCH_PC (current_exception_event->catch_sal.pc)
|
||
#define CURRENT_EXCEPTION_THROW_SAL (current_exception_event->throw_sal)
|
||
#define CURRENT_EXCEPTION_THROW_LINE (current_exception_event->throw_sal.line)
|
||
#define CURRENT_EXCEPTION_THROW_FILE (current_exception_event->throw_sal.symtab->filename)
|
||
#define CURRENT_EXCEPTION_THROW_PC (current_exception_event->throw_sal.pc)
|
||
|
||
|
||
/* Given a pc value, return line number it is in. Second arg nonzero means
|
||
if pc is on the boundary use the previous statement's line number. */
|
||
|
||
extern struct symtab_and_line find_pc_line (CORE_ADDR, int);
|
||
|
||
/* Same function, but specify a section as well as an address */
|
||
|
||
extern struct symtab_and_line find_pc_sect_line (CORE_ADDR, asection *, int);
|
||
|
||
/* Given an address, return the nearest symbol at or below it in memory.
|
||
Optionally return the symtab it's from through 2nd arg, and the
|
||
address in inferior memory of the symbol through 3rd arg. */
|
||
|
||
extern struct symbol *find_addr_symbol (CORE_ADDR, struct symtab **,
|
||
CORE_ADDR *);
|
||
|
||
/* Given a symtab and line number, return the pc there. */
|
||
|
||
extern int find_line_pc (struct symtab *, int, CORE_ADDR *);
|
||
|
||
extern int
|
||
find_line_pc_range (struct symtab_and_line, CORE_ADDR *, CORE_ADDR *);
|
||
|
||
extern void resolve_sal_pc (struct symtab_and_line *);
|
||
|
||
/* Given a string, return the line specified by it. For commands like "list"
|
||
and "breakpoint". */
|
||
|
||
extern struct symtabs_and_lines decode_line_spec (char *, int);
|
||
|
||
extern struct symtabs_and_lines decode_line_spec_1 (char *, int);
|
||
|
||
/* From linespec.c */
|
||
|
||
extern struct symtabs_and_lines decode_line_1 (char **,
|
||
int, struct symtab *, int, char ***);
|
||
|
||
/* Symmisc.c */
|
||
|
||
void maintenance_print_symbols (char *, int);
|
||
|
||
void maintenance_print_psymbols (char *, int);
|
||
|
||
void maintenance_print_msymbols (char *, int);
|
||
|
||
void maintenance_print_objfiles (char *, int);
|
||
|
||
void maintenance_check_symtabs (char *, int);
|
||
|
||
/* maint.c */
|
||
|
||
void maintenance_print_statistics (char *, int);
|
||
|
||
extern void free_symtab (struct symtab *);
|
||
|
||
/* Symbol-reading stuff in symfile.c and solib.c. */
|
||
|
||
extern struct symtab *psymtab_to_symtab (struct partial_symtab *);
|
||
|
||
extern void clear_solib (void);
|
||
|
||
/* source.c */
|
||
|
||
extern int identify_source_line (struct symtab *, int, int, CORE_ADDR);
|
||
|
||
extern void print_source_lines (struct symtab *, int, int, int);
|
||
|
||
extern void forget_cached_source_info (void);
|
||
|
||
extern void select_source_symtab (struct symtab *);
|
||
|
||
extern char **make_symbol_completion_list (char *, char *);
|
||
|
||
extern struct symbol **make_symbol_overload_list (struct symbol *);
|
||
|
||
/* 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 blockvector *blockvector_for_pc_sect (CORE_ADDR, asection *,
|
||
int *, struct symtab *);
|
||
|
||
/* symfile.c */
|
||
|
||
extern void clear_symtab_users (void);
|
||
|
||
extern enum language deduce_language_from_filename (char *);
|
||
|
||
/* symtab.c */
|
||
|
||
extern int in_prologue (CORE_ADDR pc, CORE_ADDR func_start);
|
||
|
||
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_search_symbols! */
|
||
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 (char *, namespace_enum, int, char **,
|
||
struct symbol_search **);
|
||
extern void free_search_symbols (struct symbol_search *);
|
||
extern struct cleanup *make_cleanup_free_search_symbols (struct symbol_search *);
|
||
|
||
#endif /* !defined(SYMTAB_H) */
|