mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
2906593ffe
Similar to lookup_global_symbol, except that it checks the STATIC_SCOPE. gdb/ChangeLog: 2019-07-30 Christian Biesinger <cbiesinger@google.com> PR/24474: Add a function to lookup static variables. * NEWS: Mention this new function. * python/py-symbol.c (gdbpy_lookup_static_symbol): New function. * python/python-internal.h (gdbpy_lookup_static_symbol): New function. * python/python.c (python_GdbMethods): Add new function. gdb/doc/ChangeLog: 2019-07-30 Christian Biesinger <cbiesinger@google.com> * python.texi (Symbols In Python): Document new function gdb.lookup_static_symbol. gdb/testsuite/ChangeLog: 2019-07-30 Christian Biesinger <cbiesinger@google.com> * gdb.python/py-symbol.c: Add a static variable and one in an anonymous namespace. * gdb.python/py-symbol.exp: Test gdb.lookup_static_symbol.
682 lines
18 KiB
C
682 lines
18 KiB
C
/* Python interface to symbols.
|
||
|
||
Copyright (C) 2008-2019 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 3 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, see <http://www.gnu.org/licenses/>. */
|
||
|
||
#include "defs.h"
|
||
#include "block.h"
|
||
#include "frame.h"
|
||
#include "symtab.h"
|
||
#include "python-internal.h"
|
||
#include "objfiles.h"
|
||
|
||
typedef struct sympy_symbol_object {
|
||
PyObject_HEAD
|
||
/* The GDB symbol structure this object is wrapping. */
|
||
struct symbol *symbol;
|
||
/* A symbol object is associated with an objfile, so keep track with
|
||
doubly-linked list, rooted in the objfile. This lets us
|
||
invalidate the underlying struct symbol when the objfile is
|
||
deleted. */
|
||
struct sympy_symbol_object *prev;
|
||
struct sympy_symbol_object *next;
|
||
} symbol_object;
|
||
|
||
/* Require a valid symbol. All access to symbol_object->symbol should be
|
||
gated by this call. */
|
||
#define SYMPY_REQUIRE_VALID(symbol_obj, symbol) \
|
||
do { \
|
||
symbol = symbol_object_to_symbol (symbol_obj); \
|
||
if (symbol == NULL) \
|
||
{ \
|
||
PyErr_SetString (PyExc_RuntimeError, \
|
||
_("Symbol is invalid.")); \
|
||
return NULL; \
|
||
} \
|
||
} while (0)
|
||
|
||
static const struct objfile_data *sympy_objfile_data_key;
|
||
|
||
static PyObject *
|
||
sympy_str (PyObject *self)
|
||
{
|
||
PyObject *result;
|
||
struct symbol *symbol = NULL;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
result = PyString_FromString (SYMBOL_PRINT_NAME (symbol));
|
||
|
||
return result;
|
||
}
|
||
|
||
static PyObject *
|
||
sympy_get_type (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
if (SYMBOL_TYPE (symbol) == NULL)
|
||
{
|
||
Py_INCREF (Py_None);
|
||
return Py_None;
|
||
}
|
||
|
||
return type_to_type_object (SYMBOL_TYPE (symbol));
|
||
}
|
||
|
||
static PyObject *
|
||
sympy_get_symtab (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
if (!SYMBOL_OBJFILE_OWNED (symbol))
|
||
Py_RETURN_NONE;
|
||
|
||
return symtab_to_symtab_object (symbol_symtab (symbol));
|
||
}
|
||
|
||
static PyObject *
|
||
sympy_get_name (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
return PyString_FromString (SYMBOL_NATURAL_NAME (symbol));
|
||
}
|
||
|
||
static PyObject *
|
||
sympy_get_linkage_name (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
return PyString_FromString (SYMBOL_LINKAGE_NAME (symbol));
|
||
}
|
||
|
||
static PyObject *
|
||
sympy_get_print_name (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
return sympy_str (self);
|
||
}
|
||
|
||
static PyObject *
|
||
sympy_get_addr_class (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
return PyInt_FromLong (SYMBOL_CLASS (symbol));
|
||
}
|
||
|
||
static PyObject *
|
||
sympy_is_argument (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
return PyBool_FromLong (SYMBOL_IS_ARGUMENT (symbol));
|
||
}
|
||
|
||
static PyObject *
|
||
sympy_is_constant (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
enum address_class theclass;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
theclass = SYMBOL_CLASS (symbol);
|
||
|
||
return PyBool_FromLong (theclass == LOC_CONST || theclass == LOC_CONST_BYTES);
|
||
}
|
||
|
||
static PyObject *
|
||
sympy_is_function (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
enum address_class theclass;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
theclass = SYMBOL_CLASS (symbol);
|
||
|
||
return PyBool_FromLong (theclass == LOC_BLOCK);
|
||
}
|
||
|
||
static PyObject *
|
||
sympy_is_variable (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
enum address_class theclass;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
theclass = SYMBOL_CLASS (symbol);
|
||
|
||
return PyBool_FromLong (!SYMBOL_IS_ARGUMENT (symbol)
|
||
&& (theclass == LOC_LOCAL || theclass == LOC_REGISTER
|
||
|| theclass == LOC_STATIC || theclass == LOC_COMPUTED
|
||
|| theclass == LOC_OPTIMIZED_OUT));
|
||
}
|
||
|
||
/* Implementation of gdb.Symbol.needs_frame -> Boolean.
|
||
Returns true iff the symbol needs a frame for evaluation. */
|
||
|
||
static PyObject *
|
||
sympy_needs_frame (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
int result = 0;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
try
|
||
{
|
||
result = symbol_read_needs_frame (symbol);
|
||
}
|
||
catch (const gdb_exception &except)
|
||
{
|
||
GDB_PY_HANDLE_EXCEPTION (except);
|
||
}
|
||
|
||
if (result)
|
||
Py_RETURN_TRUE;
|
||
Py_RETURN_FALSE;
|
||
}
|
||
|
||
/* Implementation of gdb.Symbol.line -> int.
|
||
Returns the line number at which the symbol was defined. */
|
||
|
||
static PyObject *
|
||
sympy_line (PyObject *self, void *closure)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
|
||
return PyInt_FromLong (SYMBOL_LINE (symbol));
|
||
}
|
||
|
||
/* Implementation of gdb.Symbol.is_valid (self) -> Boolean.
|
||
Returns True if this Symbol still exists in GDB. */
|
||
|
||
static PyObject *
|
||
sympy_is_valid (PyObject *self, PyObject *args)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
|
||
symbol = symbol_object_to_symbol (self);
|
||
if (symbol == NULL)
|
||
Py_RETURN_FALSE;
|
||
|
||
Py_RETURN_TRUE;
|
||
}
|
||
|
||
/* Implementation of gdb.Symbol.value (self[, frame]) -> gdb.Value. Returns
|
||
the value of the symbol, or an error in various circumstances. */
|
||
|
||
static PyObject *
|
||
sympy_value (PyObject *self, PyObject *args)
|
||
{
|
||
struct symbol *symbol = NULL;
|
||
struct frame_info *frame_info = NULL;
|
||
PyObject *frame_obj = NULL;
|
||
struct value *value = NULL;
|
||
|
||
if (!PyArg_ParseTuple (args, "|O", &frame_obj))
|
||
return NULL;
|
||
|
||
if (frame_obj != NULL && !PyObject_TypeCheck (frame_obj, &frame_object_type))
|
||
{
|
||
PyErr_SetString (PyExc_TypeError, "argument is not a frame");
|
||
return NULL;
|
||
}
|
||
|
||
SYMPY_REQUIRE_VALID (self, symbol);
|
||
if (SYMBOL_CLASS (symbol) == LOC_TYPEDEF)
|
||
{
|
||
PyErr_SetString (PyExc_TypeError, "cannot get the value of a typedef");
|
||
return NULL;
|
||
}
|
||
|
||
try
|
||
{
|
||
if (frame_obj != NULL)
|
||
{
|
||
frame_info = frame_object_to_frame_info (frame_obj);
|
||
if (frame_info == NULL)
|
||
error (_("invalid frame"));
|
||
}
|
||
|
||
if (symbol_read_needs_frame (symbol) && frame_info == NULL)
|
||
error (_("symbol requires a frame to compute its value"));
|
||
|
||
/* TODO: currently, we have no way to recover the block in which SYMBOL
|
||
was found, so we have no block to pass to read_var_value. This will
|
||
yield an incorrect value when symbol is not local to FRAME_INFO (this
|
||
can happen with nested functions). */
|
||
value = read_var_value (symbol, NULL, frame_info);
|
||
}
|
||
catch (const gdb_exception &except)
|
||
{
|
||
GDB_PY_HANDLE_EXCEPTION (except);
|
||
}
|
||
|
||
return value_to_value_object (value);
|
||
}
|
||
|
||
/* Given a symbol, and a symbol_object that has previously been
|
||
allocated and initialized, populate the symbol_object with the
|
||
struct symbol data. Also, register the symbol_object life-cycle
|
||
with the life-cycle of the object file associated with this
|
||
symbol, if needed. */
|
||
static void
|
||
set_symbol (symbol_object *obj, struct symbol *symbol)
|
||
{
|
||
obj->symbol = symbol;
|
||
obj->prev = NULL;
|
||
if (SYMBOL_OBJFILE_OWNED (symbol)
|
||
&& symbol_symtab (symbol) != NULL)
|
||
{
|
||
struct objfile *objfile = symbol_objfile (symbol);
|
||
|
||
obj->next = ((struct sympy_symbol_object *)
|
||
objfile_data (objfile, sympy_objfile_data_key));
|
||
if (obj->next)
|
||
obj->next->prev = obj;
|
||
set_objfile_data (objfile, sympy_objfile_data_key, obj);
|
||
}
|
||
else
|
||
obj->next = NULL;
|
||
}
|
||
|
||
/* Create a new symbol object (gdb.Symbol) that encapsulates the struct
|
||
symbol object from GDB. */
|
||
PyObject *
|
||
symbol_to_symbol_object (struct symbol *sym)
|
||
{
|
||
symbol_object *sym_obj;
|
||
|
||
sym_obj = PyObject_New (symbol_object, &symbol_object_type);
|
||
if (sym_obj)
|
||
set_symbol (sym_obj, sym);
|
||
|
||
return (PyObject *) sym_obj;
|
||
}
|
||
|
||
/* Return the symbol that is wrapped by this symbol object. */
|
||
struct symbol *
|
||
symbol_object_to_symbol (PyObject *obj)
|
||
{
|
||
if (! PyObject_TypeCheck (obj, &symbol_object_type))
|
||
return NULL;
|
||
return ((symbol_object *) obj)->symbol;
|
||
}
|
||
|
||
static void
|
||
sympy_dealloc (PyObject *obj)
|
||
{
|
||
symbol_object *sym_obj = (symbol_object *) obj;
|
||
|
||
if (sym_obj->prev)
|
||
sym_obj->prev->next = sym_obj->next;
|
||
else if (sym_obj->symbol != NULL
|
||
&& SYMBOL_OBJFILE_OWNED (sym_obj->symbol)
|
||
&& symbol_symtab (sym_obj->symbol) != NULL)
|
||
{
|
||
set_objfile_data (symbol_objfile (sym_obj->symbol),
|
||
sympy_objfile_data_key, sym_obj->next);
|
||
}
|
||
if (sym_obj->next)
|
||
sym_obj->next->prev = sym_obj->prev;
|
||
sym_obj->symbol = NULL;
|
||
}
|
||
|
||
/* Implementation of
|
||
gdb.lookup_symbol (name [, block] [, domain]) -> (symbol, is_field_of_this)
|
||
A tuple with 2 elements is always returned. The first is the symbol
|
||
object or None, the second is a boolean with the value of
|
||
is_a_field_of_this (see comment in lookup_symbol_in_language). */
|
||
|
||
PyObject *
|
||
gdbpy_lookup_symbol (PyObject *self, PyObject *args, PyObject *kw)
|
||
{
|
||
int domain = VAR_DOMAIN;
|
||
struct field_of_this_result is_a_field_of_this;
|
||
const char *name;
|
||
static const char *keywords[] = { "name", "block", "domain", NULL };
|
||
struct symbol *symbol = NULL;
|
||
PyObject *block_obj = NULL, *sym_obj, *bool_obj;
|
||
const struct block *block = NULL;
|
||
|
||
if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "s|O!i", keywords, &name,
|
||
&block_object_type, &block_obj,
|
||
&domain))
|
||
return NULL;
|
||
|
||
if (block_obj)
|
||
block = block_object_to_block (block_obj);
|
||
else
|
||
{
|
||
struct frame_info *selected_frame;
|
||
|
||
try
|
||
{
|
||
selected_frame = get_selected_frame (_("No frame selected."));
|
||
block = get_frame_block (selected_frame, NULL);
|
||
}
|
||
catch (const gdb_exception &except)
|
||
{
|
||
GDB_PY_HANDLE_EXCEPTION (except);
|
||
}
|
||
}
|
||
|
||
try
|
||
{
|
||
symbol = lookup_symbol (name, block, (domain_enum) domain,
|
||
&is_a_field_of_this).symbol;
|
||
}
|
||
catch (const gdb_exception &except)
|
||
{
|
||
GDB_PY_HANDLE_EXCEPTION (except);
|
||
}
|
||
|
||
gdbpy_ref<> ret_tuple (PyTuple_New (2));
|
||
if (ret_tuple == NULL)
|
||
return NULL;
|
||
|
||
if (symbol)
|
||
{
|
||
sym_obj = symbol_to_symbol_object (symbol);
|
||
if (!sym_obj)
|
||
return NULL;
|
||
}
|
||
else
|
||
{
|
||
sym_obj = Py_None;
|
||
Py_INCREF (Py_None);
|
||
}
|
||
PyTuple_SET_ITEM (ret_tuple.get (), 0, sym_obj);
|
||
|
||
bool_obj = (is_a_field_of_this.type != NULL) ? Py_True : Py_False;
|
||
Py_INCREF (bool_obj);
|
||
PyTuple_SET_ITEM (ret_tuple.get (), 1, bool_obj);
|
||
|
||
return ret_tuple.release ();
|
||
}
|
||
|
||
/* Implementation of
|
||
gdb.lookup_global_symbol (name [, domain]) -> symbol or None. */
|
||
|
||
PyObject *
|
||
gdbpy_lookup_global_symbol (PyObject *self, PyObject *args, PyObject *kw)
|
||
{
|
||
int domain = VAR_DOMAIN;
|
||
const char *name;
|
||
static const char *keywords[] = { "name", "domain", NULL };
|
||
struct symbol *symbol = NULL;
|
||
PyObject *sym_obj;
|
||
|
||
if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "s|i", keywords, &name,
|
||
&domain))
|
||
return NULL;
|
||
|
||
try
|
||
{
|
||
symbol = lookup_global_symbol (name, NULL, (domain_enum) domain).symbol;
|
||
}
|
||
catch (const gdb_exception &except)
|
||
{
|
||
GDB_PY_HANDLE_EXCEPTION (except);
|
||
}
|
||
|
||
if (symbol)
|
||
{
|
||
sym_obj = symbol_to_symbol_object (symbol);
|
||
if (!sym_obj)
|
||
return NULL;
|
||
}
|
||
else
|
||
{
|
||
sym_obj = Py_None;
|
||
Py_INCREF (Py_None);
|
||
}
|
||
|
||
return sym_obj;
|
||
}
|
||
|
||
/* Implementation of
|
||
gdb.lookup_static_symbol (name [, domain) -> symbol or None. */
|
||
|
||
PyObject *
|
||
gdbpy_lookup_static_symbol (PyObject *self, PyObject *args, PyObject *kw)
|
||
{
|
||
const char *name;
|
||
int domain = VAR_DOMAIN;
|
||
static const char *keywords[] = { "name", "domain", NULL };
|
||
struct symbol *symbol = NULL;
|
||
PyObject *sym_obj;
|
||
|
||
if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "s|i", keywords, &name,
|
||
&domain))
|
||
return NULL;
|
||
|
||
try
|
||
{
|
||
symbol = lookup_static_symbol (name, (domain_enum) domain).symbol;
|
||
}
|
||
catch (const gdb_exception &except)
|
||
{
|
||
GDB_PY_HANDLE_EXCEPTION (except);
|
||
}
|
||
|
||
if (symbol)
|
||
{
|
||
sym_obj = symbol_to_symbol_object (symbol);
|
||
if (!sym_obj)
|
||
return NULL;
|
||
}
|
||
else
|
||
{
|
||
sym_obj = Py_None;
|
||
Py_INCREF (Py_None);
|
||
}
|
||
|
||
return sym_obj;
|
||
}
|
||
|
||
/* This function is called when an objfile is about to be freed.
|
||
Invalidate the symbol as further actions on the symbol would result
|
||
in bad data. All access to obj->symbol should be gated by
|
||
SYMPY_REQUIRE_VALID which will raise an exception on invalid
|
||
symbols. */
|
||
static void
|
||
del_objfile_symbols (struct objfile *objfile, void *datum)
|
||
{
|
||
symbol_object *obj = (symbol_object *) datum;
|
||
while (obj)
|
||
{
|
||
symbol_object *next = obj->next;
|
||
|
||
obj->symbol = NULL;
|
||
obj->next = NULL;
|
||
obj->prev = NULL;
|
||
|
||
obj = next;
|
||
}
|
||
}
|
||
|
||
int
|
||
gdbpy_initialize_symbols (void)
|
||
{
|
||
if (PyType_Ready (&symbol_object_type) < 0)
|
||
return -1;
|
||
|
||
/* Register an objfile "free" callback so we can properly
|
||
invalidate symbol when an object file that is about to be
|
||
deleted. */
|
||
sympy_objfile_data_key
|
||
= register_objfile_data_with_cleanup (NULL, del_objfile_symbols);
|
||
|
||
if (PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_UNDEF", LOC_UNDEF) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_CONST",
|
||
LOC_CONST) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_STATIC",
|
||
LOC_STATIC) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_REGISTER",
|
||
LOC_REGISTER) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_ARG",
|
||
LOC_ARG) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_REF_ARG",
|
||
LOC_REF_ARG) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_LOCAL",
|
||
LOC_LOCAL) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_TYPEDEF",
|
||
LOC_TYPEDEF) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_LABEL",
|
||
LOC_LABEL) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_BLOCK",
|
||
LOC_BLOCK) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_CONST_BYTES",
|
||
LOC_CONST_BYTES) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_UNRESOLVED",
|
||
LOC_UNRESOLVED) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_OPTIMIZED_OUT",
|
||
LOC_OPTIMIZED_OUT) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_COMPUTED",
|
||
LOC_COMPUTED) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_COMMON_BLOCK",
|
||
LOC_COMMON_BLOCK) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_LOC_REGPARM_ADDR",
|
||
LOC_REGPARM_ADDR) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_UNDEF_DOMAIN",
|
||
UNDEF_DOMAIN) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_VAR_DOMAIN",
|
||
VAR_DOMAIN) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_STRUCT_DOMAIN",
|
||
STRUCT_DOMAIN) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_MODULE_DOMAIN",
|
||
MODULE_DOMAIN) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_COMMON_BLOCK_DOMAIN",
|
||
COMMON_BLOCK_DOMAIN) < 0)
|
||
return -1;
|
||
|
||
/* These remain defined for compatibility, but as they were never
|
||
correct, they are no longer documented. Eventually we can remove
|
||
them. These exist because at one time, enum search_domain and
|
||
enum domain_enum_tag were combined -- but different values were
|
||
used differently. Here we try to give them values that will make
|
||
sense if they are passed to gdb.lookup_symbol. */
|
||
if (PyModule_AddIntConstant (gdb_module, "SYMBOL_VARIABLES_DOMAIN",
|
||
VAR_DOMAIN) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_FUNCTIONS_DOMAIN",
|
||
VAR_DOMAIN) < 0
|
||
|| PyModule_AddIntConstant (gdb_module, "SYMBOL_TYPES_DOMAIN",
|
||
VAR_DOMAIN) < 0)
|
||
return -1;
|
||
|
||
return gdb_pymodule_addobject (gdb_module, "Symbol",
|
||
(PyObject *) &symbol_object_type);
|
||
}
|
||
|
||
|
||
|
||
static gdb_PyGetSetDef symbol_object_getset[] = {
|
||
{ "type", sympy_get_type, NULL,
|
||
"Type of the symbol.", NULL },
|
||
{ "symtab", sympy_get_symtab, NULL,
|
||
"Symbol table in which the symbol appears.", NULL },
|
||
{ "name", sympy_get_name, NULL,
|
||
"Name of the symbol, as it appears in the source code.", NULL },
|
||
{ "linkage_name", sympy_get_linkage_name, NULL,
|
||
"Name of the symbol, as used by the linker (i.e., may be mangled).",
|
||
NULL },
|
||
{ "print_name", sympy_get_print_name, NULL,
|
||
"Name of the symbol in a form suitable for output.\n\
|
||
This is either name or linkage_name, depending on whether the user asked GDB\n\
|
||
to display demangled or mangled names.", NULL },
|
||
{ "addr_class", sympy_get_addr_class, NULL, "Address class of the symbol." },
|
||
{ "is_argument", sympy_is_argument, NULL,
|
||
"True if the symbol is an argument of a function." },
|
||
{ "is_constant", sympy_is_constant, NULL,
|
||
"True if the symbol is a constant." },
|
||
{ "is_function", sympy_is_function, NULL,
|
||
"True if the symbol is a function or method." },
|
||
{ "is_variable", sympy_is_variable, NULL,
|
||
"True if the symbol is a variable." },
|
||
{ "needs_frame", sympy_needs_frame, NULL,
|
||
"True if the symbol requires a frame for evaluation." },
|
||
{ "line", sympy_line, NULL,
|
||
"The source line number at which the symbol was defined." },
|
||
{ NULL } /* Sentinel */
|
||
};
|
||
|
||
static PyMethodDef symbol_object_methods[] = {
|
||
{ "is_valid", sympy_is_valid, METH_NOARGS,
|
||
"is_valid () -> Boolean.\n\
|
||
Return true if this symbol is valid, false if not." },
|
||
{ "value", sympy_value, METH_VARARGS,
|
||
"value ([frame]) -> gdb.Value\n\
|
||
Return the value of the symbol." },
|
||
{NULL} /* Sentinel */
|
||
};
|
||
|
||
PyTypeObject symbol_object_type = {
|
||
PyVarObject_HEAD_INIT (NULL, 0)
|
||
"gdb.Symbol", /*tp_name*/
|
||
sizeof (symbol_object), /*tp_basicsize*/
|
||
0, /*tp_itemsize*/
|
||
sympy_dealloc, /*tp_dealloc*/
|
||
0, /*tp_print*/
|
||
0, /*tp_getattr*/
|
||
0, /*tp_setattr*/
|
||
0, /*tp_compare*/
|
||
0, /*tp_repr*/
|
||
0, /*tp_as_number*/
|
||
0, /*tp_as_sequence*/
|
||
0, /*tp_as_mapping*/
|
||
0, /*tp_hash */
|
||
0, /*tp_call*/
|
||
sympy_str, /*tp_str*/
|
||
0, /*tp_getattro*/
|
||
0, /*tp_setattro*/
|
||
0, /*tp_as_buffer*/
|
||
Py_TPFLAGS_DEFAULT, /*tp_flags*/
|
||
"GDB symbol object", /*tp_doc */
|
||
0, /*tp_traverse */
|
||
0, /*tp_clear */
|
||
0, /*tp_richcompare */
|
||
0, /*tp_weaklistoffset */
|
||
0, /*tp_iter */
|
||
0, /*tp_iternext */
|
||
symbol_object_methods, /*tp_methods */
|
||
0, /*tp_members */
|
||
symbol_object_getset /*tp_getset */
|
||
};
|