mirror of
https://sourceware.org/git/binutils-gdb.git
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651 lines
18 KiB
C
651 lines
18 KiB
C
/* Python interface to record targets.
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Copyright 2016-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "py-instruction.h"
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#include "py-record.h"
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#include "py-record-btrace.h"
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#include "py-record-full.h"
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#include "target.h"
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#include "gdbthread.h"
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/* Python Record type. */
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static PyTypeObject recpy_record_type = {
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PyVarObject_HEAD_INIT (NULL, 0)
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};
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/* Python RecordInstruction type. */
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PyTypeObject recpy_insn_type = {
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PyVarObject_HEAD_INIT (NULL, 0)
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};
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/* Python RecordFunctionSegment type. */
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PyTypeObject recpy_func_type = {
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PyVarObject_HEAD_INIT (NULL, 0)
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};
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/* Python RecordGap type. */
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PyTypeObject recpy_gap_type = {
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PyVarObject_HEAD_INIT (NULL, 0)
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};
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/* Python RecordGap object. */
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typedef struct
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{
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PyObject_HEAD
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/* Reason code. */
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int reason_code;
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/* Reason message. */
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const char *reason_string;
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/* Element number. */
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Py_ssize_t number;
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} recpy_gap_object;
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/* Implementation of record.method. */
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static PyObject *
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recpy_method (PyObject *self, void* closure)
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{
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const recpy_record_object * const obj = (recpy_record_object *) self;
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if (obj->method == RECORD_METHOD_FULL)
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return recpy_full_method (self, closure);
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_method (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of record.format. */
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static PyObject *
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recpy_format (PyObject *self, void* closure)
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{
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const recpy_record_object * const obj = (recpy_record_object *) self;
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if (obj->method == RECORD_METHOD_FULL)
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return recpy_full_format (self, closure);
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_format (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of record.goto (instruction) -> None. */
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static PyObject *
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recpy_goto (PyObject *self, PyObject *value)
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{
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const recpy_record_object * const obj = (recpy_record_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_goto (self, value);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of record.replay_position [instruction] */
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static PyObject *
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recpy_replay_position (PyObject *self, void *closure)
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{
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const recpy_record_object * const obj = (recpy_record_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_replay_position (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of record.instruction_history [list]. */
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static PyObject *
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recpy_instruction_history (PyObject *self, void* closure)
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{
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const recpy_record_object * const obj = (recpy_record_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_instruction_history (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of record.function_call_history [list]. */
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static PyObject *
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recpy_function_call_history (PyObject *self, void* closure)
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{
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const recpy_record_object * const obj = (recpy_record_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_function_call_history (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of record.begin [instruction]. */
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static PyObject *
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recpy_begin (PyObject *self, void* closure)
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{
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const recpy_record_object * const obj = (recpy_record_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_begin (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of record.end [instruction]. */
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static PyObject *
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recpy_end (PyObject *self, void* closure)
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{
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const recpy_record_object * const obj = (recpy_record_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_end (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Create a new gdb.RecordInstruction object. */
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PyObject *
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recpy_insn_new (thread_info *thread, enum record_method method, Py_ssize_t number)
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{
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recpy_element_object * const obj = PyObject_New (recpy_element_object,
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&recpy_insn_type);
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if (obj == NULL)
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return NULL;
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obj->thread = thread;
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obj->method = method;
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obj->number = number;
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return (PyObject *) obj;
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}
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/* Implementation of RecordInstruction.sal [gdb.Symtab_and_line]. */
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static PyObject *
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recpy_insn_sal (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_insn_sal (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of RecordInstruction.pc [int]. */
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static PyObject *
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recpy_insn_pc (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_insn_pc (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of RecordInstruction.data [buffer]. */
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static PyObject *
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recpy_insn_data (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_insn_data (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of RecordInstruction.decoded [str]. */
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static PyObject *
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recpy_insn_decoded (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_insn_decoded (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of RecordInstruction.size [int]. */
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static PyObject *
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recpy_insn_size (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_insn_size (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of RecordInstruction.is_speculative [bool]. */
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static PyObject *
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recpy_insn_is_speculative (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_insn_is_speculative (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Create a new gdb.RecordFunctionSegment object. */
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PyObject *
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recpy_func_new (thread_info *thread, enum record_method method, Py_ssize_t number)
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{
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recpy_element_object * const obj = PyObject_New (recpy_element_object,
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&recpy_func_type);
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if (obj == NULL)
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return NULL;
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obj->thread = thread;
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obj->method = method;
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obj->number = number;
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return (PyObject *) obj;
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}
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/* Implementation of RecordFunctionSegment.level [int]. */
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static PyObject *
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recpy_func_level (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_func_level (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of RecordFunctionSegment.symbol [gdb.Symbol]. */
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static PyObject *
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recpy_func_symbol (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_func_symbol (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of RecordFunctionSegment.instructions [list]. */
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static PyObject *
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recpy_func_instructions (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_func_instructions (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of RecordFunctionSegment.up [RecordFunctionSegment]. */
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static PyObject *
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recpy_func_up (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_func_up (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of RecordFunctionSegment.prev [RecordFunctionSegment]. */
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static PyObject *
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recpy_func_prev (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_func_prev (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of RecordFunctionSegment.next [RecordFunctionSegment]. */
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static PyObject *
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recpy_func_next (PyObject *self, void *closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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if (obj->method == RECORD_METHOD_BTRACE)
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return recpy_bt_func_next (self, closure);
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return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
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}
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/* Implementation of RecordInstruction.number [int] and
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RecordFunctionSegment.number [int]. */
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static PyObject *
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recpy_element_number (PyObject *self, void* closure)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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return PyInt_FromSsize_t (obj->number);
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}
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/* Implementation of RecordInstruction.__hash__ [int] and
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RecordFunctionSegment.__hash__ [int]. */
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static Py_hash_t
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recpy_element_hash (PyObject *self)
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{
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const recpy_element_object * const obj = (recpy_element_object *) self;
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return obj->number;
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}
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/* Implementation of operator == and != of RecordInstruction and
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RecordFunctionSegment. */
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static PyObject *
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recpy_element_richcompare (PyObject *self, PyObject *other, int op)
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{
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const recpy_element_object * const obj1 = (recpy_element_object *) self;
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const recpy_element_object * const obj2 = (recpy_element_object *) other;
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if (Py_TYPE (self) != Py_TYPE (other))
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{
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Py_INCREF (Py_NotImplemented);
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return Py_NotImplemented;
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}
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switch (op)
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{
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case Py_EQ:
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if (obj1->thread == obj2->thread
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&& obj1->method == obj2->method
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&& obj1->number == obj2->number)
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Py_RETURN_TRUE;
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else
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Py_RETURN_FALSE;
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case Py_NE:
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if (obj1->thread != obj2->thread
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|| obj1->method != obj2->method
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|| obj1->number != obj2->number)
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Py_RETURN_TRUE;
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else
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Py_RETURN_FALSE;
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default:
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break;
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}
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Py_INCREF (Py_NotImplemented);
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return Py_NotImplemented;
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}
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/* Create a new gdb.RecordGap object. */
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PyObject *
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recpy_gap_new (int reason_code, const char *reason_string, Py_ssize_t number)
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{
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recpy_gap_object * const obj = PyObject_New (recpy_gap_object,
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&recpy_gap_type);
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if (obj == NULL)
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return NULL;
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obj->reason_code = reason_code;
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obj->reason_string = reason_string;
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obj->number = number;
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return (PyObject *) obj;
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}
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/* Implementation of RecordGap.number [int]. */
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static PyObject *
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recpy_gap_number (PyObject *self, void *closure)
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{
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const recpy_gap_object * const obj = (const recpy_gap_object *) self;
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return PyInt_FromSsize_t (obj->number);
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}
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/* Implementation of RecordGap.error_code [int]. */
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static PyObject *
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recpy_gap_reason_code (PyObject *self, void *closure)
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{
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const recpy_gap_object * const obj = (const recpy_gap_object *) self;
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return PyInt_FromLong (obj->reason_code);
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}
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/* Implementation of RecordGap.error_string [str]. */
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static PyObject *
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recpy_gap_reason_string (PyObject *self, void *closure)
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{
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const recpy_gap_object * const obj = (const recpy_gap_object *) self;
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return PyString_FromString (obj->reason_string);
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}
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/* Record method list. */
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static PyMethodDef recpy_record_methods[] = {
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{ "goto", recpy_goto, METH_VARARGS,
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"goto (instruction|function_call) -> None.\n\
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Rewind to given location."},
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{ NULL }
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};
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/* Record member list. */
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static gdb_PyGetSetDef recpy_record_getset[] = {
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{ "method", recpy_method, NULL, "Current recording method.", NULL },
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{ "format", recpy_format, NULL, "Current recording format.", NULL },
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{ "replay_position", recpy_replay_position, NULL, "Current replay position.",
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NULL },
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{ "instruction_history", recpy_instruction_history, NULL,
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"List of instructions in current recording.", NULL },
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{ "function_call_history", recpy_function_call_history, NULL,
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"List of function calls in current recording.", NULL },
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{ "begin", recpy_begin, NULL,
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"First instruction in current recording.", NULL },
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{ "end", recpy_end, NULL,
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"One past the last instruction in current recording. This is typically \
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the current instruction and is used for e.g. record.goto (record.end).", NULL },
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{ NULL }
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};
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/* RecordInstruction member list. */
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static gdb_PyGetSetDef recpy_insn_getset[] = {
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{ "number", recpy_element_number, NULL, "instruction number", NULL},
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{ "sal", recpy_insn_sal, NULL, "associated symbol and line", NULL},
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{ "pc", recpy_insn_pc, NULL, "instruction address", NULL},
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{ "data", recpy_insn_data, NULL, "raw instruction data", NULL},
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{ "decoded", recpy_insn_decoded, NULL, "decoded instruction", NULL},
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{ "size", recpy_insn_size, NULL, "instruction size in byte", NULL},
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{ "is_speculative", recpy_insn_is_speculative, NULL, "if the instruction was \
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executed speculatively", NULL},
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{ NULL }
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};
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/* RecordFunctionSegment member list. */
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static gdb_PyGetSetDef recpy_func_getset[] = {
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{ "number", recpy_element_number, NULL, "function segment number", NULL},
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{ "level", recpy_func_level, NULL, "call stack level", NULL},
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{ "symbol", recpy_func_symbol, NULL, "associated line and symbol", NULL},
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{ "instructions", recpy_func_instructions, NULL, "list of instructions in \
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this function segment", NULL},
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{ "up", recpy_func_up, NULL, "caller or returned-to function segment", NULL},
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{ "prev", recpy_func_prev, NULL, "previous segment of this function", NULL},
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{ "next", recpy_func_next, NULL, "next segment of this function", NULL},
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{ NULL }
|
|
};
|
|
|
|
/* RecordGap member list. */
|
|
|
|
static gdb_PyGetSetDef recpy_gap_getset[] = {
|
|
{ "number", recpy_gap_number, NULL, "element number", NULL},
|
|
{ "reason_code", recpy_gap_reason_code, NULL, "reason code", NULL},
|
|
{ "reason_string", recpy_gap_reason_string, NULL, "reason string", NULL},
|
|
{ NULL }
|
|
};
|
|
|
|
/* Sets up the record API in the gdb module. */
|
|
|
|
int
|
|
gdbpy_initialize_record (void)
|
|
{
|
|
recpy_record_type.tp_new = PyType_GenericNew;
|
|
recpy_record_type.tp_flags = Py_TPFLAGS_DEFAULT;
|
|
recpy_record_type.tp_basicsize = sizeof (recpy_record_object);
|
|
recpy_record_type.tp_name = "gdb.Record";
|
|
recpy_record_type.tp_doc = "GDB record object";
|
|
recpy_record_type.tp_methods = recpy_record_methods;
|
|
recpy_record_type.tp_getset = recpy_record_getset;
|
|
|
|
recpy_insn_type.tp_new = PyType_GenericNew;
|
|
recpy_insn_type.tp_flags = Py_TPFLAGS_DEFAULT;
|
|
recpy_insn_type.tp_basicsize = sizeof (recpy_element_object);
|
|
recpy_insn_type.tp_name = "gdb.RecordInstruction";
|
|
recpy_insn_type.tp_doc = "GDB recorded instruction object";
|
|
recpy_insn_type.tp_getset = recpy_insn_getset;
|
|
recpy_insn_type.tp_richcompare = recpy_element_richcompare;
|
|
recpy_insn_type.tp_hash = recpy_element_hash;
|
|
recpy_insn_type.tp_base = &py_insn_type;
|
|
|
|
recpy_func_type.tp_new = PyType_GenericNew;
|
|
recpy_func_type.tp_flags = Py_TPFLAGS_DEFAULT;
|
|
recpy_func_type.tp_basicsize = sizeof (recpy_element_object);
|
|
recpy_func_type.tp_name = "gdb.RecordFunctionSegment";
|
|
recpy_func_type.tp_doc = "GDB record function segment object";
|
|
recpy_func_type.tp_getset = recpy_func_getset;
|
|
recpy_func_type.tp_richcompare = recpy_element_richcompare;
|
|
recpy_func_type.tp_hash = recpy_element_hash;
|
|
|
|
recpy_gap_type.tp_new = PyType_GenericNew;
|
|
recpy_gap_type.tp_flags = Py_TPFLAGS_DEFAULT;
|
|
recpy_gap_type.tp_basicsize = sizeof (recpy_gap_object);
|
|
recpy_gap_type.tp_name = "gdb.RecordGap";
|
|
recpy_gap_type.tp_doc = "GDB recorded gap object";
|
|
recpy_gap_type.tp_getset = recpy_gap_getset;
|
|
|
|
if (PyType_Ready (&recpy_record_type) < 0
|
|
|| PyType_Ready (&recpy_insn_type) < 0
|
|
|| PyType_Ready (&recpy_func_type) < 0
|
|
|| PyType_Ready (&recpy_gap_type) < 0)
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/* Implementation of gdb.start_recording (method) -> gdb.Record. */
|
|
|
|
PyObject *
|
|
gdbpy_start_recording (PyObject *self, PyObject *args)
|
|
{
|
|
const char *method = NULL;
|
|
const char *format = NULL;
|
|
PyObject *ret = NULL;
|
|
|
|
if (!PyArg_ParseTuple (args, "|ss", &method, &format))
|
|
return NULL;
|
|
|
|
try
|
|
{
|
|
record_start (method, format, 0);
|
|
ret = gdbpy_current_recording (self, args);
|
|
}
|
|
catch (const gdb_exception &except)
|
|
{
|
|
gdbpy_convert_exception (except);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Implementation of gdb.current_recording (self) -> gdb.Record. */
|
|
|
|
PyObject *
|
|
gdbpy_current_recording (PyObject *self, PyObject *args)
|
|
{
|
|
recpy_record_object *ret = NULL;
|
|
|
|
if (find_record_target () == NULL)
|
|
Py_RETURN_NONE;
|
|
|
|
ret = PyObject_New (recpy_record_object, &recpy_record_type);
|
|
ret->thread = inferior_thread ();
|
|
ret->method = target_record_method (ret->thread->ptid);
|
|
|
|
return (PyObject *) ret;
|
|
}
|
|
|
|
/* Implementation of gdb.stop_recording (self) -> None. */
|
|
|
|
PyObject *
|
|
gdbpy_stop_recording (PyObject *self, PyObject *args)
|
|
{
|
|
try
|
|
{
|
|
record_stop (0);
|
|
}
|
|
catch (const gdb_exception &except)
|
|
{
|
|
GDB_PY_HANDLE_EXCEPTION (except);
|
|
}
|
|
|
|
Py_RETURN_NONE;
|
|
}
|