/tmp/gdb-8.1/gdb/objc-lang.c File Reference

#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "expression.h"
#include "parser-defs.h"
#include "language.h"
#include "varobj.h"
#include "c-lang.h"
#include "objc-lang.h"
#include "complaints.h"
#include "value.h"
#include "symfile.h"
#include "objfiles.h"
#include "target.h"
#include "gdbcore.h"
#include "gdbcmd.h"
#include "frame.h"
#include "gdb_regex.h"
#include "regcache.h"
#include "block.h"
#include "infcall.h"
#include "valprint.h"
#include "cli/cli-utils.h"
#include <ctype.h>

Go to the source code of this file.

Classes
struct	objc_object
struct	objc_class
struct	objc_super
struct	objc_method
struct	selname
struct	objc_methcall

Macros
#define	nmethcalls   (sizeof (methcalls) / sizeof (methcalls[0]))

Functions
struct symbol *	lookup_struct_typedef (const char *name, const struct block *block, int noerr)
CORE_ADDR	lookup_objc_class (struct gdbarch *gdbarch, const char *classname)
CORE_ADDR	lookup_child_selector (struct gdbarch *gdbarch, const char *selname)
struct value *	value_nsstring (struct gdbarch *gdbarch, char *ptr, int len)
char *	objc_demangle (const char *mangled, int options)
static int	objc_sniff_from_mangled_name (const char *mangled, char **demangled)
static CORE_ADDR	objc_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc)
void	start_msglist (void)
void	add_msglist (struct stoken *str, int addcolon)
int	end_msglist (struct parser_state *ps)
static int	specialcmp (const char *a, const char *b)
static int	compare_selectors (const void *a, const void *b)
static void	info_selectors_command (const char *regexp, int from_tty)
static int	compare_classes (const void *a, const void *b)
static void	info_classes_command (const char *regexp, int from_tty)
static char *	parse_selector (char *method, char **selector)
static char *	parse_method (char *method, char *type, char **theclass, char **category, char **selector)
static void	find_methods (char type, const char *theclass, const char *category, const char *selector, VEC(const_char_ptr) **symbol_names)
static void	uniquify_strings (VEC(const_char_ptr) **strings)
const char *	find_imps (const char *method, VEC(const_char_ptr) **symbol_names)
static void	print_object_command (const char *args, int from_tty)
static int	resolve_msgsend (CORE_ADDR pc, CORE_ADDR *new_pc)
static int	resolve_msgsend_stret (CORE_ADDR pc, CORE_ADDR *new_pc)
static int	resolve_msgsend_super (CORE_ADDR pc, CORE_ADDR *new_pc)
static int	resolve_msgsend_super_stret (CORE_ADDR pc, CORE_ADDR *new_pc)
static void	find_objc_msgsend (void)
static int	find_objc_msgcall_submethod (int(*f)(CORE_ADDR, CORE_ADDR *), CORE_ADDR pc, CORE_ADDR *new_pc)
int	find_objc_msgcall (CORE_ADDR pc, CORE_ADDR *new_pc)
void	_initialize_objc_language (void)
static void	read_objc_method (struct gdbarch *gdbarch, CORE_ADDR addr, struct objc_method *method)
static unsigned long	read_objc_methlist_nmethods (struct gdbarch *gdbarch, CORE_ADDR addr)
static void	read_objc_methlist_method (struct gdbarch *gdbarch, CORE_ADDR addr, unsigned long num, struct objc_method *method)
static void	read_objc_object (struct gdbarch *gdbarch, CORE_ADDR addr, struct objc_object *object)
static void	read_objc_super (struct gdbarch *gdbarch, CORE_ADDR addr, struct objc_super *super)
static void	read_objc_class (struct gdbarch *gdbarch, CORE_ADDR addr, struct objc_class *theclass)
static CORE_ADDR	find_implementation_from_class (struct gdbarch *gdbarch, CORE_ADDR theclass, CORE_ADDR sel)
static CORE_ADDR	find_implementation (struct gdbarch *gdbarch, CORE_ADDR object, CORE_ADDR sel)
void	_initialize_objc_lang (void)

Variables
static const struct objfile_data *	objc_objfile_data
static const struct op_print	objc_op_print_tab []
static const char *	objc_extensions []
const struct language_defn	objc_language_defn
static int	msglist_len
static struct selname *	selname_chain
static char *	msglist_sel
static struct objc_methcall	methcalls []

Macro Definition Documentation

nmethcalls

#define nmethcalls   (sizeof (methcalls) / sizeof (methcalls[0]))

Definition at line 1263 of file objc-lang.c.

Referenced by find_objc_msgcall(), and find_objc_msgsend().

Function Documentation

_initialize_objc_lang()

void _initialize_objc_lang

(

void

)

Definition at line 1600 of file objc-lang.c.

References objc_objfile_data.

_initialize_objc_language()

void _initialize_objc_language

(

void

)

Definition at line 1360 of file objc-lang.c.

References _, add_com(), add_com_alias(), add_info(), class_vars, info_classes_command(), info_selectors_command(), and print_object_command().

add_msglist()

void add_msglist	(	struct stoken *	str,
		int	addcolon
	)

Definition at line 448 of file objc-lang.c.

References stoken::length, msglist_len, msglist_sel, stoken::ptr, xfree(), and xmalloc().

Referenced by yyparse().

compare_classes()

static int compare_classes ( const void *  a, const void *  b  )

static

Definition at line 704 of file objc-lang.c.

References _, error(), specialcmp(), and SYMBOL_PRINT_NAME.

Referenced by info_classes_command().

compare_selectors()

static int compare_selectors ( const void *  a, const void *  b  )

static

Definition at line 538 of file objc-lang.c.

References _, error(), specialcmp(), and SYMBOL_PRINT_NAME.

Referenced by info_selectors_command().

end_msglist()

int end_msglist

(

struct parser_state *

ps

)

Definition at line 486 of file objc-lang.c.

References _, error(), lookup_child_selector(), selname::msglist_len, msglist_len, selname::msglist_sel, msglist_sel, selname::next, parse_gdbarch, cleanup_check::ps, selname_chain, write_exp_elt_longcst(), and xfree().

Referenced by yyparse().

find_implementation()

static CORE_ADDR find_implementation ( struct gdbarch *  gdbarch, CORE_ADDR  object, CORE_ADDR  sel  )

static

Definition at line 1485 of file objc-lang.c.

References find_implementation_from_class(), objc_object::isa, and read_objc_object().

Referenced by resolve_msgsend(), and resolve_msgsend_stret().

find_implementation_from_class()

static CORE_ADDR find_implementation_from_class ( struct gdbarch *  gdbarch, CORE_ADDR  theclass, CORE_ADDR  sel  )

static

Definition at line 1437 of file objc-lang.c.

References gdbarch_byte_order(), objc_method::imp, objc_class::methods, objc_method::name, read_memory_unsigned_integer(), read_objc_class(), read_objc_methlist_method(), read_objc_methlist_nmethods(), and objc_class::super_class.

Referenced by find_implementation(), resolve_msgsend_super(), and resolve_msgsend_super_stret().

find_imps()

const char* find_imps	(	const char *	method,
		VEC(const_char_ptr) **	symbol_names
	)

Definition at line 1130 of file objc-lang.c.

References find_methods(), gdb_assert, lookup_minimal_symbol(), lookup_symbol(), bound_minimal_symbol::minsym, MSYMBOL_NATURAL_NAME, parse_method(), parse_selector(), selector, block_symbol::symbol, SYMBOL_NATURAL_NAME, uniquify_strings(), VAR_DOMAIN, VEC_empty, and VEC_safe_push.

Referenced by decode_objc(), and find_function_symbols().

find_methods()

static void find_methods ( char  type, const char *  theclass, const char *  category, const char *  selector, VEC(const_char_ptr) **  symbol_names  )

static

Definition at line 974 of file objc-lang.c.

References ALL_OBJFILE_MSYMBOLS, ALL_OBJFILES, gdb_assert, MSYMBOL_NATURAL_NAME, objc_objfile_data, parse_method(), QUIT, selector, VEC_safe_push, and xrealloc().

Referenced by find_imps().

find_objc_msgcall()

int find_objc_msgcall	(	CORE_ADDR	pc,
		CORE_ADDR *	new_pc
	)

Definition at line 1336 of file objc-lang.c.

References find_objc_msgcall_submethod(), find_objc_msgsend(), methcalls, and nmethcalls.

Referenced by objc_skip_trampoline().

find_objc_msgcall_submethod()

static int find_objc_msgcall_submethod ( int(*)(CORE_ADDR, CORE_ADDR *)  f, CORE_ADDR  pc, CORE_ADDR *  new_pc  )

static

Definition at line 1315 of file objc-lang.c.

References CATCH, END_CATCH, exception_fprintf(), gdb_stderr, RETURN_MASK_ALL, and TRY.

Referenced by find_objc_msgcall().

find_objc_msgsend()

static void find_objc_msgsend ( void  )

static

Definition at line 1273 of file objc-lang.c.

References objc_methcall::begin, BMSYMBOL_VALUE_ADDRESS, objc_methcall::end, func, lookup_bound_minimal_symbol(), methcalls, minimal_symbol_upper_bound(), name, objc_methcall::name, and nmethcalls.

Referenced by find_objc_msgcall().

info_classes_command()

static void info_classes_command ( const char *  regexp, int  from_tty  )

static

Definition at line 727 of file objc-lang.c.

References _, ALL_MSYMBOLS, begin_line(), compare_classes(), error(), MSYMBOL_NATURAL_NAME, name, objfile::objfile(), printf_filtered(), puts_filtered_tabular(), qsort, QUIT, re_comp(), specialcmp(), and SYMBOL_NATURAL_NAME.

Referenced by _initialize_objc_language().

info_selectors_command()

static void info_selectors_command ( const char *  regexp, int  from_tty  )

static

Definition at line 565 of file objc-lang.c.

References _, ALL_MSYMBOLS, begin_line(), compare_selectors(), complaint, error(), MSYMBOL_NATURAL_NAME, name, objfile::objfile(), printf_filtered(), puts_filtered_tabular(), qsort, QUIT, re_comp(), specialcmp(), SYMBOL_NATURAL_NAME, and symfile_complaints.

Referenced by _initialize_objc_language().

lookup_child_selector()

CORE_ADDR lookup_child_selector	(	struct gdbarch *	gdbarch,
		const char *	selname
	)

Definition at line 139 of file objc-lang.c.

References _, builtin_type::builtin_char, builtin_type(), call_function_by_hand(), complaint, find_function_in_inferior(), lookup_minimal_symbol(), symfile_complaints, target_has_execution, value_as_long(), value_coerce_array(), and value_string().

Referenced by end_msglist(), evaluate_subexp_standard(), and value_nsstring().

lookup_objc_class()

CORE_ADDR lookup_objc_class	(	struct gdbarch *	gdbarch,
		const char *	classname
	)

Definition at line 109 of file objc-lang.c.

References _, builtin_type::builtin_char, builtin_type(), call_function_by_hand(), complaint, find_function_in_inferior(), lookup_minimal_symbol(), symfile_complaints, target_has_execution, value_as_long(), value_coerce_array(), and value_string().

Referenced by value_nsstring(), VEC(), and yyparse().

lookup_struct_typedef()

struct symbol* lookup_struct_typedef	(	const char *	name,
		const struct block *	block,
		int	noerr
	)

Definition at line 84 of file objc-lang.c.

References _, error(), lookup_symbol(), name, STRUCT_DOMAIN, block_symbol::symbol, SYMBOL_TYPE, TYPE_CODE, and TYPE_CODE_STRUCT.

Referenced by value_nsstring(), and VEC().

objc_demangle()

char* objc_demangle	(	const char *	mangled,
		int	options
	)

Definition at line 223 of file objc-lang.c.

References xfree(), and xmalloc().

Referenced by objc_sniff_from_mangled_name().

objc_skip_trampoline()

static CORE_ADDR objc_skip_trampoline ( struct frame_info *  frame, CORE_ADDR  stop_pc  )

static

Definition at line 302 of file objc-lang.c.

References find_objc_msgcall(), gdbarch_skip_trampoline_code(), get_frame_arch(), and stop_pc.

objc_sniff_from_mangled_name()

static int objc_sniff_from_mangled_name ( const char *  mangled, char **  demangled  )

static

Definition at line 289 of file objc-lang.c.

References objc_demangle().

parse_method()

static char* parse_method ( char *  method, char *  type, char **  theclass, char **  category, char **  selector  )

static

Definition at line 878 of file objc-lang.c.

References gdb_assert, selector, and skip_spaces().

Referenced by find_imps(), and find_methods().

parse_selector()

static char* parse_selector ( char *  method, char **  selector  )

static

Definition at line 826 of file objc-lang.c.

References gdb_assert, selector, and skip_spaces().

Referenced by find_imps().

print_object_command()

static void print_object_command ( const char *  args, int  from_tty  )

static

Definition at line 1188 of file objc-lang.c.

References _, builtin_type::builtin_data_ptr, call_function_by_hand(), error(), EVAL_NORMAL, evaluate_subexp(), find_function_in_inferior(), parse_expression(), printf_filtered(), QUIT, read_memory(), and value_as_long().

Referenced by _initialize_objc_language().

read_objc_class()

static void read_objc_class ( struct gdbarch *  gdbarch, CORE_ADDR  addr, struct objc_class *  theclass  )

static

Definition at line 1418 of file objc-lang.c.

References objc_class::cache, gdbarch_byte_order(), objc_class::info, objc_class::instance_size, objc_class::isa, objc_class::ivars, objc_class::methods, objc_class::name, objc_class::protocols, read_memory_unsigned_integer(), objc_class::super_class, and objc_class::version.

Referenced by find_implementation_from_class().

read_objc_methlist_method()

static void read_objc_methlist_method ( struct gdbarch *  gdbarch, CORE_ADDR  addr, unsigned long  num, struct objc_method *  method  )

static

Definition at line 1391 of file objc-lang.c.

References gdb_assert, read_objc_methlist_nmethods(), and read_objc_method().

Referenced by find_implementation_from_class().

read_objc_methlist_nmethods()

static unsigned long read_objc_methlist_nmethods ( struct gdbarch *  gdbarch, CORE_ADDR  addr  )

static

Definition at line 1383 of file objc-lang.c.

References gdbarch_byte_order(), and read_memory_unsigned_integer().

Referenced by find_implementation_from_class(), and read_objc_methlist_method().

read_objc_method()

static void read_objc_method ( struct gdbarch *  gdbarch, CORE_ADDR  addr, struct objc_method *  method  )

static

Definition at line 1372 of file objc-lang.c.

References gdbarch_byte_order(), objc_method::imp, objc_method::name, read_memory_unsigned_integer(), and objc_method::types.

Referenced by read_objc_methlist_method().

read_objc_object()

static void read_objc_object ( struct gdbarch *  gdbarch, CORE_ADDR  addr, struct objc_object *  object  )

static

Definition at line 1399 of file objc-lang.c.

References gdbarch_byte_order(), and read_memory_unsigned_integer().

Referenced by find_implementation().

read_objc_super()

static void read_objc_super ( struct gdbarch *  gdbarch, CORE_ADDR  addr, struct objc_super *  super  )

static

Definition at line 1408 of file objc-lang.c.

References gdbarch_byte_order(), read_memory_unsigned_integer(), objc_super::receiver, and objc_super::theclass.

Referenced by resolve_msgsend_super(), and resolve_msgsend_super_stret().

resolve_msgsend()

static int resolve_msgsend ( CORE_ADDR  pc, CORE_ADDR *  new_pc  )

static

Definition at line 1500 of file objc-lang.c.

References builtin_type::builtin_func_ptr, builtin_type(), find_implementation(), gdbarch_fetch_pointer_argument(), get_current_frame(), and get_frame_arch().

resolve_msgsend_stret()

static int resolve_msgsend_stret ( CORE_ADDR  pc, CORE_ADDR *  new_pc  )

static

Definition at line 1522 of file objc-lang.c.

References builtin_type::builtin_func_ptr, builtin_type(), find_implementation(), gdbarch_fetch_pointer_argument(), get_current_frame(), and get_frame_arch().

resolve_msgsend_super()

static int resolve_msgsend_super ( CORE_ADDR  pc, CORE_ADDR *  new_pc  )

static

Definition at line 1544 of file objc-lang.c.

References builtin_type::builtin_func_ptr, builtin_type(), find_implementation_from_class(), gdbarch_fetch_pointer_argument(), get_current_frame(), get_frame_arch(), read_objc_super(), and objc_super::theclass.

resolve_msgsend_super_stret()

static int resolve_msgsend_super_stret ( CORE_ADDR  pc, CORE_ADDR *  new_pc  )

static

Definition at line 1572 of file objc-lang.c.

References builtin_type::builtin_func_ptr, builtin_type(), find_implementation_from_class(), gdbarch_fetch_pointer_argument(), get_current_frame(), get_frame_arch(), read_objc_super(), and objc_super::theclass.

specialcmp()

static int specialcmp ( const char *  a, const char *  b  )

static

Definition at line 515 of file objc-lang.c.

Referenced by compare_classes(), compare_selectors(), info_classes_command(), and info_selectors_command().

start_msglist()

void start_msglist

(

void

)

Definition at line 434 of file objc-lang.c.

References selname::msglist_len, msglist_len, selname::msglist_sel, msglist_sel, selname::next, selname_chain, xmalloc(), and XNEW.

Referenced by yyparse().

uniquify_strings()

static void uniquify_strings ( VEC(const_char_ptr) **  strings )

static

Definition at line 1070 of file objc-lang.c.

References compare_strings(), qsort, VEC_address, VEC_empty, VEC_iterate, VEC_length, VEC_replace, and VEC_truncate.

Referenced by find_imps().

value_nsstring()

struct value* value_nsstring	(	struct gdbarch *	gdbarch,
		char *	ptr,
		int	len
	)

Definition at line 168 of file objc-lang.c.

References _, builtin_type::builtin_char, builtin_type::builtin_data_ptr, builtin_type::builtin_long, builtin_type(), call_function_by_hand(), deprecated_set_value_type(), error(), find_function_in_inferior(), lookup_child_selector(), lookup_minimal_symbol(), lookup_objc_class(), lookup_pointer_type(), lookup_struct_typedef(), SYMBOL_TYPE, target_has_execution, type, value_coerce_array(), value_from_longest(), and value_string().

Referenced by evaluate_subexp_standard().

Variable Documentation

methcalls

struct objc_methcall methcalls[]

static

Initial value:

= {
  { "_objc_msgSend", resolve_msgsend, 0, 0},
  { "_objc_msgSend_stret", resolve_msgsend_stret, 0, 0},
  { "_objc_msgSendSuper", resolve_msgsend_super, 0, 0},
  { "_objc_msgSendSuper_stret", resolve_msgsend_super_stret, 0, 0},
  { "_objc_getClass", NULL, 0, 0},
  { "_objc_getMetaClass", NULL, 0, 0}
}

Definition at line 1254 of file objc-lang.c.

Referenced by find_objc_msgcall(), and find_objc_msgsend().

msglist_len

int msglist_len

static

Definition at line 429 of file objc-lang.c.

Referenced by add_msglist(), end_msglist(), and start_msglist().

msglist_sel

char* msglist_sel

static

Definition at line 431 of file objc-lang.c.

Referenced by add_msglist(), end_msglist(), and start_msglist().

objc_extensions

const char* objc_extensions[]

static

Initial value:

=
{
  ".m", NULL
}

Definition at line 364 of file objc-lang.c.

objc_language_defn

const struct language_defn objc_language_defn

objc_objfile_data

const struct objfile_data* objc_objfile_data

static

Definition at line 77 of file objc-lang.c.

Referenced by _initialize_objc_lang(), and find_methods().

objc_op_print_tab

const struct op_print objc_op_print_tab[]

static

Definition at line 330 of file objc-lang.c.

selname_chain

struct selname* selname_chain

static

Definition at line 430 of file objc-lang.c.

Referenced by end_msglist(), and start_msglist().