/* Python interface to objfiles.
- Copyright (C) 2008-2014 Free Software Foundation, Inc.
+ Copyright (C) 2008-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "objfiles.h"
#include "language.h"
#include "build-id.h"
-#include "elf-bfd.h"
+#include "symtab.h"
typedef struct
{
/* The frame filter list of functions. */
PyObject *frame_filters;
+
+ /* The list of frame unwinders. */
+ PyObject *frame_unwinders;
+
/* The type-printer list. */
PyObject *type_printers;
PyObject *xmethods;
} objfile_object;
-static PyTypeObject objfile_object_type
+extern PyTypeObject objfile_object_type
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("objfile_object");
static const struct objfile_data *objfpy_objfile_data_key;
objfile_object *obj = (objfile_object *) self;
if (obj->objfile)
- return PyString_Decode (objfile_name (obj->objfile),
- strlen (objfile_name (obj->objfile)),
- host_charset (), NULL);
+ return (host_string_to_python_string (objfile_name (obj->objfile))
+ .release ());
+ Py_RETURN_NONE;
+}
+
+/* An Objfile method which returns the objfile's file name, as specified
+ by the user, or None. */
+
+static PyObject *
+objfpy_get_username (PyObject *self, void *closure)
+{
+ objfile_object *obj = (objfile_object *) self;
+
+ if (obj->objfile)
+ {
+ const char *username = obj->objfile->original_name;
+
+ return host_string_to_python_string (username).release ();
+ }
+
Py_RETURN_NONE;
}
owner = objfile->separate_debug_objfile_backlink;
if (owner != NULL)
- {
- PyObject *result = objfile_to_objfile_object (owner);
-
- Py_XINCREF (result);
- return result;
- }
+ return objfile_to_objfile_object (owner).release ();
Py_RETURN_NONE;
}
{
objfile_object *obj = (objfile_object *) self;
struct objfile *objfile = obj->objfile;
- const struct elf_build_id *build_id = NULL;
- volatile struct gdb_exception except;
+ const struct bfd_build_id *build_id = NULL;
OBJFPY_REQUIRE_VALID (obj);
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
{
build_id = build_id_bfd_get (objfile->obfd);
}
- GDB_PY_HANDLE_EXCEPTION (except);
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
if (build_id != NULL)
{
- char *hex_form = make_hex_string (build_id->data, build_id->size);
- PyObject *result;
+ std::string hex_form = bin2hex (build_id->data, build_id->size);
- result = PyString_Decode (hex_form, strlen (hex_form),
- host_charset (), NULL);
- xfree (hex_form);
- return result;
+ return host_string_to_python_string (hex_form.c_str ()).release ();
}
Py_RETURN_NONE;
objfile_object *obj = (objfile_object *) self;
if (obj->objfile)
- {
- PyObject *pspace = pspace_to_pspace_object (obj->objfile->pspace);
-
- Py_XINCREF (pspace);
- return pspace;
- }
+ return pspace_to_pspace_object (obj->objfile->pspace).release ();
Py_RETURN_NONE;
}
Py_XDECREF (self->dict);
Py_XDECREF (self->printers);
Py_XDECREF (self->frame_filters);
+ Py_XDECREF (self->frame_unwinders);
Py_XDECREF (self->type_printers);
Py_XDECREF (self->xmethods);
Py_TYPE (self)->tp_free (self);
objfpy_initialize (objfile_object *self)
{
self->objfile = NULL;
- self->dict = NULL;
+
+ self->dict = PyDict_New ();
+ if (self->dict == NULL)
+ return 0;
self->printers = PyList_New (0);
if (self->printers == NULL)
if (self->frame_filters == NULL)
return 0;
+ self->frame_unwinders = PyList_New (0);
+ if (self->frame_unwinders == NULL)
+ return 0;
+
self->type_printers = PyList_New (0);
if (self->type_printers == NULL)
return 0;
static PyObject *
objfpy_new (PyTypeObject *type, PyObject *args, PyObject *keywords)
{
- objfile_object *self = (objfile_object *) type->tp_alloc (type, 0);
+ gdbpy_ref<objfile_object> self ((objfile_object *) type->tp_alloc (type, 0));
- if (self)
+ if (self != NULL)
{
- if (!objfpy_initialize (self))
- {
- Py_DECREF (self);
- return NULL;
- }
+ if (!objfpy_initialize (self.get ()))
+ return NULL;
}
- return (PyObject *) self;
+ return (PyObject *) self.release ();
}
PyObject *
static int
objfpy_set_printers (PyObject *o, PyObject *value, void *ignore)
{
- PyObject *tmp;
objfile_object *self = (objfile_object *) o;
if (! value)
}
/* Take care in case the LHS and RHS are related somehow. */
- tmp = self->printers;
+ gdbpy_ref<> tmp (self->printers);
Py_INCREF (value);
self->printers = value;
- Py_XDECREF (tmp);
return 0;
}
static int
objfpy_set_frame_filters (PyObject *o, PyObject *filters, void *ignore)
{
- PyObject *tmp;
objfile_object *self = (objfile_object *) o;
if (! filters)
}
/* Take care in case the LHS and RHS are related somehow. */
- tmp = self->frame_filters;
+ gdbpy_ref<> tmp (self->frame_filters);
Py_INCREF (filters);
self->frame_filters = filters;
- Py_XDECREF (tmp);
+
+ return 0;
+}
+
+/* Return the frame unwinders attribute for this object file. */
+
+PyObject *
+objfpy_get_frame_unwinders (PyObject *o, void *ignore)
+{
+ objfile_object *self = (objfile_object *) o;
+
+ Py_INCREF (self->frame_unwinders);
+ return self->frame_unwinders;
+}
+
+/* Set this object file's frame unwinders list to UNWINDERS. */
+
+static int
+objfpy_set_frame_unwinders (PyObject *o, PyObject *unwinders, void *ignore)
+{
+ objfile_object *self = (objfile_object *) o;
+
+ if (!unwinders)
+ {
+ PyErr_SetString (PyExc_TypeError,
+ _("Cannot delete the frame unwinders attribute."));
+ return -1;
+ }
+
+ if (!PyList_Check (unwinders))
+ {
+ PyErr_SetString (PyExc_TypeError,
+ _("The frame_unwinders attribute must be a list."));
+ return -1;
+ }
+
+ /* Take care in case the LHS and RHS are related somehow. */
+ gdbpy_ref<> tmp (self->frame_unwinders);
+ Py_INCREF (unwinders);
+ self->frame_unwinders = unwinders;
return 0;
}
static int
objfpy_set_type_printers (PyObject *o, PyObject *value, void *ignore)
{
- PyObject *tmp;
objfile_object *self = (objfile_object *) o;
if (! value)
}
/* Take care in case the LHS and RHS are related somehow. */
- tmp = self->type_printers;
+ gdbpy_ref<> tmp (self->type_printers);
Py_INCREF (value);
self->type_printers = value;
- Py_XDECREF (tmp);
return 0;
}
Py_RETURN_TRUE;
}
-/* Implementation of gdb.Objfile.add_separate_debug_file (self) -> Boolean. */
+/* Implementation of gdb.Objfile.add_separate_debug_file (self, string). */
static PyObject *
objfpy_add_separate_debug_file (PyObject *self, PyObject *args, PyObject *kw)
{
- static char *keywords[] = { "file_name", NULL };
+ static const char *keywords[] = { "file_name", NULL };
objfile_object *obj = (objfile_object *) self;
const char *file_name;
- int symfile_flags = 0;
- volatile struct gdb_exception except;
OBJFPY_REQUIRE_VALID (obj);
- if (!PyArg_ParseTupleAndKeywords (args, kw, "s", keywords, &file_name))
+ if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "s", keywords, &file_name))
return NULL;
- TRY_CATCH (except, RETURN_MASK_ALL)
+ try
+ {
+ gdb_bfd_ref_ptr abfd (symfile_bfd_open (file_name));
+
+ symbol_file_add_separate (abfd.get (), file_name, 0, obj->objfile);
+ }
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
+
+ Py_RETURN_NONE;
+}
+
+/* Implementation of
+ gdb.Objfile.lookup_global_symbol (self, string [, domain]) -> gdb.Symbol. */
+
+static PyObject *
+objfpy_lookup_global_symbol (PyObject *self, PyObject *args, PyObject *kw)
+{
+ static const char *keywords[] = { "name", "domain", NULL };
+ objfile_object *obj = (objfile_object *) self;
+ const char *symbol_name;
+ int domain = VAR_DOMAIN;
+
+ OBJFPY_REQUIRE_VALID (obj);
+
+ if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "s|i", keywords, &symbol_name,
+ &domain))
+ return nullptr;
+
+ try
+ {
+ struct symbol *sym = lookup_global_symbol_from_objfile
+ (obj->objfile, GLOBAL_BLOCK, symbol_name, (domain_enum) domain).symbol;
+ if (sym == nullptr)
+ Py_RETURN_NONE;
+
+ return symbol_to_symbol_object (sym);
+ }
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
+
+ Py_RETURN_NONE;
+}
+
+/* Implementation of
+ gdb.Objfile.lookup_static_symbol (self, string [, domain]) -> gdb.Symbol. */
+
+static PyObject *
+objfpy_lookup_static_symbol (PyObject *self, PyObject *args, PyObject *kw)
+{
+ static const char *keywords[] = { "name", "domain", NULL };
+ objfile_object *obj = (objfile_object *) self;
+ const char *symbol_name;
+ int domain = VAR_DOMAIN;
+
+ OBJFPY_REQUIRE_VALID (obj);
+
+ if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "s|i", keywords, &symbol_name,
+ &domain))
+ return nullptr;
+
+ try
{
- bfd *abfd = symfile_bfd_open (file_name);
+ struct symbol *sym = lookup_global_symbol_from_objfile
+ (obj->objfile, STATIC_BLOCK, symbol_name, (domain_enum) domain).symbol;
+ if (sym == nullptr)
+ Py_RETURN_NONE;
- symbol_file_add_separate (abfd, file_name, symfile_flags, obj->objfile);
+ return symbol_to_symbol_object (sym);
+ }
+ catch (const gdb_exception &except)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
}
- GDB_PY_HANDLE_EXCEPTION (except);
Py_RETURN_NONE;
}
+/* Implement repr() for gdb.Objfile. */
+
+static PyObject *
+objfpy_repr (PyObject *self_)
+{
+ objfile_object *self = (objfile_object *) self_;
+ objfile *obj = self->objfile;
+
+ if (obj == nullptr)
+ return PyString_FromString ("<gdb.Objfile (invalid)>");
+
+ return PyString_FromFormat ("<gdb.Objfile filename=%s>",
+ objfile_filename (obj));
+}
+
+/* Subroutine of gdbpy_lookup_objfile_by_build_id to simplify it.
+ Return non-zero if STRING is a potentially valid build id. */
+
+static int
+objfpy_build_id_ok (const char *string)
+{
+ size_t i, n = strlen (string);
+
+ if (n % 2 != 0)
+ return 0;
+ for (i = 0; i < n; ++i)
+ {
+ if (!isxdigit (string[i]))
+ return 0;
+ }
+ return 1;
+}
+
+/* Subroutine of gdbpy_lookup_objfile_by_build_id to simplify it.
+ Returns non-zero if BUILD_ID matches STRING.
+ It is assumed that objfpy_build_id_ok (string) returns TRUE. */
+
+static int
+objfpy_build_id_matches (const struct bfd_build_id *build_id,
+ const char *string)
+{
+ size_t i;
+
+ if (strlen (string) != 2 * build_id->size)
+ return 0;
+
+ for (i = 0; i < build_id->size; ++i)
+ {
+ char c1 = string[i * 2], c2 = string[i * 2 + 1];
+ int byte = (host_hex_value (c1) << 4) | host_hex_value (c2);
+
+ if (byte != build_id->data[i])
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Subroutine of gdbpy_lookup_objfile to simplify it.
+ Look up an objfile by its file name. */
+
+static struct objfile *
+objfpy_lookup_objfile_by_name (const char *name)
+{
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ const char *filename;
+
+ if ((objfile->flags & OBJF_NOT_FILENAME) != 0)
+ continue;
+ /* Don't return separate debug files. */
+ if (objfile->separate_debug_objfile_backlink != NULL)
+ continue;
+
+ filename = objfile_filename (objfile);
+ if (filename != NULL && compare_filenames_for_search (filename, name))
+ return objfile;
+ if (compare_filenames_for_search (objfile->original_name, name))
+ return objfile;
+ }
+
+ return NULL;
+}
+
+/* Subroutine of gdbpy_lookup_objfile to simplify it.
+ Look up an objfile by its build id. */
+
+static struct objfile *
+objfpy_lookup_objfile_by_build_id (const char *build_id)
+{
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ const struct bfd_build_id *obfd_build_id;
+
+ if (objfile->obfd == NULL)
+ continue;
+ /* Don't return separate debug files. */
+ if (objfile->separate_debug_objfile_backlink != NULL)
+ continue;
+ obfd_build_id = build_id_bfd_get (objfile->obfd);
+ if (obfd_build_id == NULL)
+ continue;
+ if (objfpy_build_id_matches (obfd_build_id, build_id))
+ return objfile;
+ }
+
+ return NULL;
+}
+
+/* Implementation of gdb.lookup_objfile. */
+
+PyObject *
+gdbpy_lookup_objfile (PyObject *self, PyObject *args, PyObject *kw)
+{
+ static const char *keywords[] = { "name", "by_build_id", NULL };
+ const char *name;
+ PyObject *by_build_id_obj = NULL;
+ int by_build_id;
+ struct objfile *objfile;
+
+ if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "s|O!", keywords,
+ &name, &PyBool_Type, &by_build_id_obj))
+ return NULL;
+
+ by_build_id = 0;
+ if (by_build_id_obj != NULL)
+ {
+ int cmp = PyObject_IsTrue (by_build_id_obj);
+
+ if (cmp < 0)
+ return NULL;
+ by_build_id = cmp;
+ }
+
+ if (by_build_id)
+ {
+ if (!objfpy_build_id_ok (name))
+ {
+ PyErr_SetString (PyExc_TypeError, _("Not a valid build id."));
+ return NULL;
+ }
+ objfile = objfpy_lookup_objfile_by_build_id (name);
+ }
+ else
+ objfile = objfpy_lookup_objfile_by_name (name);
+
+ if (objfile != NULL)
+ return objfile_to_objfile_object (objfile).release ();
+
+ PyErr_SetString (PyExc_ValueError, _("Objfile not found."));
+ return NULL;
+}
+
\f
/* Clear the OBJFILE pointer in an Objfile object and remove the
static void
py_free_objfile (struct objfile *objfile, void *datum)
{
- struct cleanup *cleanup;
- objfile_object *object = datum;
-
- cleanup = ensure_python_env (get_objfile_arch (objfile), current_language);
+ gdbpy_enter enter_py (get_objfile_arch (objfile), current_language);
+ gdbpy_ref<objfile_object> object ((objfile_object *) datum);
object->objfile = NULL;
- Py_DECREF ((PyObject *) object);
- do_cleanups (cleanup);
}
-/* Return a borrowed reference to the Python object of type Objfile
+/* Return a new reference to the Python object of type Objfile
representing OBJFILE. If the object has already been created,
return it. Otherwise, create it. Return NULL and set the Python
error on failure. */
-PyObject *
+gdbpy_ref<>
objfile_to_objfile_object (struct objfile *objfile)
{
- objfile_object *object;
-
- object = objfile_data (objfile, objfpy_objfile_data_key);
- if (!object)
+ PyObject *result
+ = ((PyObject *) objfile_data (objfile, objfpy_objfile_data_key));
+ if (result == NULL)
{
- object = PyObject_New (objfile_object, &objfile_object_type);
- if (object)
- {
- if (!objfpy_initialize (object))
- {
- Py_DECREF (object);
- return NULL;
- }
-
- object->objfile = objfile;
- set_objfile_data (objfile, objfpy_objfile_data_key, object);
- }
+ gdbpy_ref<objfile_object> object
+ ((objfile_object *) PyObject_New (objfile_object, &objfile_object_type));
+ if (object == NULL)
+ return NULL;
+ if (!objfpy_initialize (object.get ()))
+ return NULL;
+
+ object->objfile = objfile;
+ set_objfile_data (objfile, objfpy_objfile_data_key, object.get ());
+ result = (PyObject *) object.release ();
}
- return (PyObject *) object;
+ return gdbpy_ref<>::new_reference (result);
}
int
"add_separate_debug_file (file_name).\n\
Add FILE_NAME to the list of files containing debug info for the objfile." },
+ { "lookup_global_symbol", (PyCFunction) objfpy_lookup_global_symbol,
+ METH_VARARGS | METH_KEYWORDS,
+ "lookup_global_symbol (name [, domain]).\n\
+Look up a global symbol in this objfile and return it." },
+
+ { "lookup_static_symbol", (PyCFunction) objfpy_lookup_static_symbol,
+ METH_VARARGS | METH_KEYWORDS,
+ "lookup_static_symbol (name [, domain]).\n\
+Look up a static-linkage global symbol in this objfile and return it." },
+
{ NULL }
};
-static PyGetSetDef objfile_getset[] =
+static gdb_PyGetSetDef objfile_getset[] =
{
{ "__dict__", gdb_py_generic_dict, NULL,
"The __dict__ for this objfile.", &objfile_object_type },
{ "filename", objfpy_get_filename, NULL,
"The objfile's filename, or None.", NULL },
+ { "username", objfpy_get_username, NULL,
+ "The name of the objfile as provided by the user, or None.", NULL },
{ "owner", objfpy_get_owner, NULL,
"The objfile owner of separate debug info objfiles, or None.",
NULL },
"Pretty printers.", NULL },
{ "frame_filters", objfpy_get_frame_filters,
objfpy_set_frame_filters, "Frame Filters.", NULL },
+ { "frame_unwinders", objfpy_get_frame_unwinders,
+ objfpy_set_frame_unwinders, "Frame Unwinders", NULL },
{ "type_printers", objfpy_get_type_printers, objfpy_set_type_printers,
"Type printers.", NULL },
{ "xmethods", objfpy_get_xmethods, NULL,
{ NULL }
};
-static PyTypeObject objfile_object_type =
+PyTypeObject objfile_object_type =
{
PyVarObject_HEAD_INIT (NULL, 0)
"gdb.Objfile", /*tp_name*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
- 0, /*tp_repr*/
+ objfpy_repr, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
projects / deliverable / binutils-gdb.git / blobdiff