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authorTim Wiederhake <tim.wiederhake@intel.com>2016-11-21 16:39:57 +0100
committerTim Wiederhake <tim.wiederhake@intel.com>2017-02-14 10:57:56 +0100
commit75c0bdf484b7a949a53b04edd95edca5f4662184 (patch)
tree7c1029d63d7d27e89d6b76d1ea2033257e90b9dd /gdb/python
parent4726b2d82c89fe6f8e769d1ae9f9e5e528f91156 (diff)
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python: Implement btrace Python bindings for record history.
This patch implements the gdb.Record Python object methods and fields for record target btrace. Also, implement a stub for record target full. Signed-off-by: Tim Wiederhake <tim.wiederhake@intel.com> gdb/ChangeLog: * Makefile.in (SUBDIR_PYTHON_OBS): Add py-record-btrace.o, py-record-full.o. (SUBDIR_PYTHON_SRCS): Add py-record-btrace.c, py-record-full.c. * python/py-record-btrace.c, python/py-record-btrace.h, python/py-record-full.c, python/py-record-full.h: New file. * python/py-record.c: Add include for py-record-btrace.h and py-record-full.h. (recpy_method, recpy_format, recpy_goto, recpy_replay_position, recpy_instruction_history, recpy_function_call_history, recpy_begin, recpy_end): Use functions from py-record-btrace.c and py-record-full.c. * python/python-internal.h (PyInt_FromSsize_t, PyInt_AsSsize_t): New definition. (gdbpy_initialize_btrace): New export. * python/python.c (_initialize_python): Add gdbpy_initialize_btrace. Change-Id: I8bd893672ffc7e619cc1386767897249e125973a
Diffstat (limited to 'gdb/python')
-rw-r--r--gdb/python/py-record-btrace.c1001
-rw-r--r--gdb/python/py-record-btrace.h49
-rw-r--r--gdb/python/py-record-full.c39
-rw-r--r--gdb/python/py-record-full.h31
-rw-r--r--gdb/python/py-record.c48
-rw-r--r--gdb/python/python-internal.h4
-rw-r--r--gdb/python/python.c1
7 files changed, 1173 insertions, 0 deletions
diff --git a/gdb/python/py-record-btrace.c b/gdb/python/py-record-btrace.c
new file mode 100644
index 0000000..6158f31
--- /dev/null
+++ b/gdb/python/py-record-btrace.c
@@ -0,0 +1,1001 @@
+/* Python interface to btrace instruction history.
+
+ Copyright 2016-2017 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 "gdbcore.h"
+#include "gdbcmd.h"
+#include "gdbthread.h"
+#include "btrace.h"
+#include "py-record-btrace.h"
+#include "disasm.h"
+
+#if defined (IS_PY3K)
+
+#define BTPY_PYSLICE(x) (x)
+
+#else
+
+#define BTPY_PYSLICE(x) ((PySliceObject *) x)
+
+#endif
+
+#define BTPY_REQUIRE_VALID_INSN(obj, iter) \
+ do { \
+ struct thread_info *tinfo = find_thread_ptid (obj->ptid); \
+ if (tinfo == NULL || btrace_is_empty (tinfo)) \
+ return PyErr_Format (gdbpy_gdb_error, _("Empty branch trace."));\
+ if (0 == btrace_find_insn_by_number (&iter, &tinfo->btrace, \
+ obj->number)) \
+ return PyErr_Format (gdbpy_gdb_error, _("No such instruction."));\
+ } while (0)
+
+#define BTPY_REQUIRE_VALID_CALL(obj, iter) \
+ do { \
+ struct thread_info *tinfo = find_thread_ptid (obj->ptid); \
+ if (tinfo == NULL || btrace_is_empty (tinfo)) \
+ return PyErr_Format (gdbpy_gdb_error, _("Empty branch trace."));\
+ if (0 == btrace_find_call_by_number (&iter, &tinfo->btrace, \
+ obj->number)) \
+ return PyErr_Format (gdbpy_gdb_error, _("No such call segment."));\
+ } while (0)
+
+/* This can either be a btrace instruction or a function call segment,
+ depending on the chosen type. */
+
+typedef struct {
+ PyObject_HEAD
+
+ /* The thread this object belongs to. */
+ ptid_t ptid;
+
+ /* Instruction number or function call segment number, depending on the type
+ of this object. */
+ Py_ssize_t number;
+} btpy_object;
+
+/* Python object for btrace record lists. */
+
+typedef struct {
+ PyObject_HEAD
+
+ /* The thread this list belongs to. */
+ ptid_t ptid;
+
+ /* The first index being part of this list. */
+ Py_ssize_t first;
+
+ /* The last index begin part of this list. */
+ Py_ssize_t last;
+
+ /* Stride size. */
+ Py_ssize_t step;
+
+ /* Either &BTPY_CALL_TYPE or &BTPY_INSN_TYPE. */
+ PyTypeObject* element_type;
+} btpy_list_object;
+
+/* Python type for btrace instructions. */
+
+static PyTypeObject btpy_insn_type = {
+ PyVarObject_HEAD_INIT (NULL, 0)
+};
+
+/* Python type for btrace function-calls. */
+
+static PyTypeObject btpy_call_type = {
+ PyVarObject_HEAD_INIT (NULL, 0)
+};
+
+/* Python type for btrace lists. */
+
+static PyTypeObject btpy_list_type = {
+ PyVarObject_HEAD_INIT (NULL, 0)
+};
+
+/* Create a new gdb.BtraceInstruction or gdb.BtraceFunctionCall object,
+ depending on TYPE. */
+
+static PyObject *
+btpy_new (ptid_t ptid, Py_ssize_t number, PyTypeObject* type)
+{
+ btpy_object * const obj = PyObject_New (btpy_object, type);
+
+ if (obj == NULL)
+ return NULL;
+
+ obj->ptid = ptid;
+ obj->number = number;
+
+ return (PyObject *) obj;
+}
+
+/* Create a new gdb.BtraceInstruction object. */
+
+static PyObject *
+btpy_insn_new (ptid_t ptid, Py_ssize_t number)
+{
+ return btpy_new (ptid, number, &btpy_insn_type);
+}
+
+/* Create a new gdb.BtraceFunctionCall object. */
+
+static PyObject *
+btpy_call_new (ptid_t ptid, Py_ssize_t number)
+{
+ return btpy_new (ptid, number, &btpy_call_type);
+}
+
+/* Create a new gdb.BtraceList object. */
+
+static PyObject *
+btpy_list_new (ptid_t ptid, Py_ssize_t first, Py_ssize_t last, Py_ssize_t step,
+ PyTypeObject *element_type)
+{
+ btpy_list_object * const obj = PyObject_New (btpy_list_object,
+ &btpy_list_type);
+
+ if (obj == NULL)
+ return NULL;
+
+ obj->ptid = ptid;
+ obj->first = first;
+ obj->last = last;
+ obj->step = step;
+ obj->element_type = element_type;
+
+ return (PyObject *) obj;
+}
+
+/* Implementation of BtraceInstruction.number [int] and
+ BtraceFunctionCall.number [int]. */
+
+static PyObject *
+btpy_number (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+
+ return PyInt_FromSsize_t (obj->number);
+}
+
+/* Implementation of BtraceInstruction.__hash__ () -> int and
+ BtraceFunctionCall.__hash__ () -> int. */
+
+static Py_hash_t
+btpy_hash (PyObject *self)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+
+ return obj->number;
+}
+
+/* Implementation of BtraceInstruction.error [int]. Returns the
+ error code for gaps. */
+
+static PyObject *
+btpy_insn_error (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ struct btrace_insn_iterator iter;
+ int error;
+
+ BTPY_REQUIRE_VALID_INSN (obj, iter);
+
+ error = btrace_insn_get_error (&iter);
+
+ if (error == 0)
+ Py_RETURN_NONE;
+
+ return PyInt_FromLong (error);
+}
+
+/* Implementation of BtraceInstruction.sal [gdb.Symtab_and_line].
+ Return the SAL associated with this instruction. */
+
+static PyObject *
+btpy_insn_sal (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_insn *insn;
+ struct btrace_insn_iterator iter;
+ PyObject *result = NULL;
+
+ BTPY_REQUIRE_VALID_INSN (obj, iter);
+
+ insn = btrace_insn_get (&iter);
+ if (insn == NULL)
+ Py_RETURN_NONE;
+
+ TRY
+ {
+ result = symtab_and_line_to_sal_object (find_pc_line (insn->pc, 0));
+ }
+ CATCH (except, RETURN_MASK_ALL)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
+ END_CATCH
+
+ return result;
+}
+
+/* Implementation of BtraceInstruction.pc [int]. Returns
+ the instruction address. */
+
+static PyObject *
+btpy_insn_pc (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_insn *insn;
+ struct btrace_insn_iterator iter;
+
+ BTPY_REQUIRE_VALID_INSN (obj, iter);
+
+ insn = btrace_insn_get (&iter);
+ if (insn == NULL)
+ Py_RETURN_NONE;
+
+ return gdb_py_long_from_ulongest (insn->pc);
+}
+
+/* Implementation of BtraceInstruction.size [int]. Returns
+ the instruction size. */
+
+static PyObject *
+btpy_insn_size (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_insn *insn;
+ struct btrace_insn_iterator iter;
+
+ BTPY_REQUIRE_VALID_INSN (obj, iter);
+
+ insn = btrace_insn_get (&iter);
+ if (insn == NULL)
+ Py_RETURN_NONE;
+
+ return PyInt_FromLong (insn->size);
+}
+
+/* Implementation of BtraceInstruction.is_speculative [bool].
+ Returns if this instruction was executed speculatively. */
+
+static PyObject *
+btpy_insn_is_speculative (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_insn *insn;
+ struct btrace_insn_iterator iter;
+
+ BTPY_REQUIRE_VALID_INSN (obj, iter);
+
+ insn = btrace_insn_get (&iter);
+ if (insn == NULL)
+ Py_RETURN_NONE;
+
+ if (insn->flags & BTRACE_INSN_FLAG_SPECULATIVE)
+ Py_RETURN_TRUE;
+ else
+ Py_RETURN_FALSE;
+}
+
+/* Implementation of BtraceInstruction.data [buffer].
+ Returns raw instruction data. */
+
+static PyObject *
+btpy_insn_data (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_insn *insn;
+ struct btrace_insn_iterator iter;
+ gdb_byte *buffer = NULL;
+ PyObject *object;
+
+ BTPY_REQUIRE_VALID_INSN (obj, iter);
+
+ insn = btrace_insn_get (&iter);
+ if (insn == NULL)
+ Py_RETURN_NONE;
+
+ TRY
+ {
+ buffer = (gdb_byte *) xmalloc (insn->size);
+ read_memory (insn->pc, buffer, insn->size);
+ }
+ CATCH (except, RETURN_MASK_ALL)
+ {
+ xfree (buffer);
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
+ END_CATCH
+
+ object = PyBytes_FromStringAndSize ((const char*) buffer, insn->size);
+ xfree (buffer);
+
+ if (object == NULL)
+ return NULL;
+
+ return PyMemoryView_FromObject (object);
+}
+
+/* Implementation of BtraceInstruction.decode [str]. Returns
+ the instruction as human readable string. */
+
+static PyObject *
+btpy_insn_decode (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_insn *insn;
+ struct btrace_insn_iterator iter;
+ string_file strfile;
+
+ BTPY_REQUIRE_VALID_INSN (obj, iter);
+
+ insn = btrace_insn_get (&iter);
+ if (insn == NULL)
+ {
+ int error_code = btrace_insn_get_error (&iter);
+ const struct btrace_config *config;
+
+ config = btrace_conf (&find_thread_ptid (obj->ptid)->btrace);
+ return PyBytes_FromString (btrace_decode_error (config->format,
+ error_code));
+ }
+
+ TRY
+ {
+ gdb_print_insn (target_gdbarch (), insn->pc, &strfile, NULL);
+ }
+ CATCH (except, RETURN_MASK_ALL)
+ {
+ gdbpy_convert_exception (except);
+ return NULL;
+ }
+ END_CATCH
+
+
+ return PyBytes_FromString (strfile.string ().c_str ());
+}
+
+/* Implementation of BtraceFunctionCall.level [int]. Returns the
+ call level. */
+
+static PyObject *
+btpy_call_level (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_function *func;
+ struct btrace_call_iterator iter;
+
+ BTPY_REQUIRE_VALID_CALL (obj, iter);
+
+ func = btrace_call_get (&iter);
+ if (func == NULL)
+ Py_RETURN_NONE;
+
+ return PyInt_FromLong (iter.btinfo->level + func->level);
+}
+
+/* Implementation of BtraceFunctionCall.symbol [gdb.Symbol]. Returns
+ the symbol associated with this function call. */
+
+static PyObject *
+btpy_call_symbol (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_function *func;
+ struct btrace_call_iterator iter;
+
+ BTPY_REQUIRE_VALID_CALL (obj, iter);
+
+ func = btrace_call_get (&iter);
+ if (func == NULL)
+ Py_RETURN_NONE;
+
+ if (func->sym == NULL)
+ Py_RETURN_NONE;
+
+ return symbol_to_symbol_object (func->sym);
+}
+
+/* Implementation of BtraceFunctionCall.instructions [list].
+ Return the list of instructions that belong to this function call. */
+
+static PyObject *
+btpy_call_instructions (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_function *func;
+ struct btrace_call_iterator iter;
+ unsigned int len;
+
+ BTPY_REQUIRE_VALID_CALL (obj, iter);
+
+ func = btrace_call_get (&iter);
+ if (func == NULL)
+ Py_RETURN_NONE;
+
+ len = VEC_length (btrace_insn_s, func->insn);
+
+ /* Gaps count as one instruction. */
+ if (len == 0)
+ len = 1;
+
+ return btpy_list_new (obj->ptid, func->insn_offset, func->insn_offset + len,
+ 1, &btpy_insn_type);
+}
+
+/* Implementation of BtraceFunctionCall.up [gdb.BtraceRecordCall].
+ Return the caller / returnee of this function. */
+
+static PyObject *
+btpy_call_up (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_function *func;
+ struct btrace_call_iterator iter;
+
+ BTPY_REQUIRE_VALID_CALL (obj, iter);
+
+ func = btrace_call_get (&iter);
+ if (func == NULL)
+ Py_RETURN_NONE;
+
+ if (func->up == NULL)
+ Py_RETURN_NONE;
+
+ return btpy_call_new (obj->ptid, func->up->number);
+}
+
+/* Implementation of BtraceFunctionCall.prev_sibling [BtraceFunctionCall].
+ Return a previous segment of this function. */
+
+static PyObject *
+btpy_call_prev_sibling (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_function *func;
+ struct btrace_call_iterator iter;
+
+ BTPY_REQUIRE_VALID_CALL (obj, iter);
+
+ func = btrace_call_get (&iter);
+ if (func == NULL)
+ Py_RETURN_NONE;
+
+ if (func->segment.prev == NULL)
+ Py_RETURN_NONE;
+
+ return btpy_call_new (obj->ptid, func->segment.prev->number);
+}
+
+/* Implementation of BtraceFunctionCall.next_sibling [BtraceFunctionCall].
+ Return a following segment of this function. */
+
+static PyObject *
+btpy_call_next_sibling (PyObject *self, void *closure)
+{
+ const btpy_object * const obj = (btpy_object *) self;
+ const struct btrace_function *func;
+ struct btrace_call_iterator iter;
+
+ BTPY_REQUIRE_VALID_CALL (obj, iter);
+
+ func = btrace_call_get (&iter);
+ if (func == NULL)
+ Py_RETURN_NONE;
+
+ if (func->segment.next == NULL)
+ Py_RETURN_NONE;
+
+ return btpy_call_new (obj->ptid, func->segment.next->number);
+}
+
+/* Python rich compare function to allow for equality and inequality checks
+ in Python. */
+
+static PyObject *
+btpy_richcompare (PyObject *self, PyObject *other, int op)
+{
+ const btpy_object * const obj1 = (btpy_object *) self;
+ const btpy_object * const obj2 = (btpy_object *) other;
+
+ if (Py_TYPE (self) != Py_TYPE (other))
+ {
+ Py_INCREF (Py_NotImplemented);
+ return Py_NotImplemented;
+ }
+
+ switch (op)
+ {
+ case Py_EQ:
+ if (ptid_equal (obj1->ptid, obj2->ptid) && obj1->number == obj2->number)
+ Py_RETURN_TRUE;
+ else
+ Py_RETURN_FALSE;
+
+ case Py_NE:
+ if (!ptid_equal (obj1->ptid, obj2->ptid) || obj1->number != obj2->number)
+ Py_RETURN_TRUE;
+ else
+ Py_RETURN_FALSE;
+
+ default:
+ break;
+ }
+
+ Py_INCREF (Py_NotImplemented);
+ return Py_NotImplemented;
+}
+
+/* Implementation of BtraceList.__len__ (self) -> int. */
+
+static Py_ssize_t
+btpy_list_length (PyObject *self)
+{
+ const btpy_list_object * const obj = (btpy_list_object *) self;
+ const Py_ssize_t distance = obj->last - obj->first;
+ const Py_ssize_t result = distance / obj->step;
+
+ if ((distance % obj->step) == 0)
+ return result;
+
+ return result + 1;
+}
+
+/* Implementation of
+ BtraceList.__getitem__ (self, key) -> BtraceInstruction and
+ BtraceList.__getitem__ (self, key) -> BtraceFunctionCall. */
+
+static PyObject *
+btpy_list_item (PyObject *self, Py_ssize_t index)
+{
+ const btpy_list_object * const obj = (btpy_list_object *) self;
+ struct thread_info * const tinfo = find_thread_ptid (obj->ptid);
+
+ if (index < 0 || index >= btpy_list_length (self))
+ return PyErr_Format (PyExc_IndexError, _("Index out of range: %zd."),
+ index);
+
+ return btpy_new (obj->ptid, obj->first + (obj->step * index),
+ obj->element_type);
+}
+
+/* Implementation of BtraceList.__getitem__ (self, slice) -> BtraceList. */
+
+static PyObject *
+btpy_list_slice (PyObject *self, PyObject *value)
+{
+ const btpy_list_object * const obj = (btpy_list_object *) self;
+ const Py_ssize_t length = btpy_list_length (self);
+ Py_ssize_t start, stop, step, slicelength;
+
+ if (PyInt_Check (value))
+ {
+ Py_ssize_t index = PyInt_AsSsize_t (value);
+
+ /* Emulate Python behavior for negative indices. */
+ if (index < 0)
+ index += length;
+
+ return btpy_list_item (self, index);
+ }
+
+ if (!PySlice_Check (value))
+ return PyErr_Format (PyExc_TypeError, _("Index must be int or slice."));
+
+ if (0 != PySlice_GetIndicesEx (BTPY_PYSLICE (value), length, &start, &stop,
+ &step, &slicelength))
+ return NULL;
+
+ return btpy_list_new (obj->ptid, obj->first + obj->step * start,
+ obj->first + obj->step * stop, obj->step * step,
+ obj->element_type);
+}
+
+/* Helper function that returns the position of an element in a BtraceList
+ or -1 if the element is not in the list. */
+
+static LONGEST
+btpy_list_position (PyObject *self, PyObject *value)
+{
+ const btpy_list_object * const list_obj = (btpy_list_object *) self;
+ const btpy_object * const obj = (btpy_object *) value;
+ Py_ssize_t index = obj->number;
+
+ if (list_obj->element_type != Py_TYPE (value))
+ return -1;
+
+ if (!ptid_equal (list_obj->ptid, obj->ptid))
+ return -1;
+
+ if (index < list_obj->first || index > list_obj->last)
+ return -1;
+
+ index -= list_obj->first;
+
+ if (index % list_obj->step != 0)
+ return -1;
+
+ return index / list_obj->step;
+}
+
+/* Implementation of "in" operator for BtraceLists. */
+
+static int
+btpy_list_contains (PyObject *self, PyObject *value)
+{
+ if (btpy_list_position (self, value) < 0)
+ return 0;
+
+ return 1;
+}
+
+/* Implementation of BtraceLists.index (self, value) -> int. */
+
+static PyObject *
+btpy_list_index (PyObject *self, PyObject *value)
+{
+ const LONGEST index = btpy_list_position (self, value);
+
+ if (index < 0)
+ return PyErr_Format (PyExc_ValueError, _("Not in list."));
+
+ return gdb_py_long_from_longest (index);
+}
+
+/* Implementation of BtraceList.count (self, value) -> int. */
+
+static PyObject *
+btpy_list_count (PyObject *self, PyObject *value)
+{
+ /* We know that if an element is in the list, it is so exactly one time,
+ enabling us to reuse the "is element of" check. */
+ return PyInt_FromLong (btpy_list_contains (self, value));
+}
+
+/* Python rich compare function to allow for equality and inequality checks
+ in Python. */
+
+static PyObject *
+btpy_list_richcompare (PyObject *self, PyObject *other, int op)
+{
+ const btpy_list_object * const obj1 = (btpy_list_object *) self;
+ const btpy_list_object * const obj2 = (btpy_list_object *) other;
+
+ if (Py_TYPE (self) != Py_TYPE (other))
+ {
+ Py_INCREF (Py_NotImplemented);
+ return Py_NotImplemented;
+ }
+
+ switch (op)
+ {
+ case Py_EQ:
+ if (ptid_equal (obj1->ptid, obj2->ptid)
+ && obj1->element_type == obj2->element_type
+ && obj1->first == obj2->first
+ && obj1->last == obj2->last
+ && obj1->step == obj2->step)
+ Py_RETURN_TRUE;
+ else
+ Py_RETURN_FALSE;
+
+ case Py_NE:
+ if (!ptid_equal (obj1->ptid, obj2->ptid)
+ || obj1->element_type != obj2->element_type
+ || obj1->first != obj2->first
+ || obj1->last != obj2->last
+ || obj1->step != obj2->step)
+ Py_RETURN_TRUE;
+ else
+ Py_RETURN_FALSE;
+
+ default:
+ break;
+ }
+
+ Py_INCREF (Py_NotImplemented);
+ return Py_NotImplemented;
+}
+
+/* Implementation of
+ BtraceRecord.method [str]. */
+
+PyObject *
+recpy_bt_method (PyObject *self, void *closure)
+{
+ return PyString_FromString ("btrace");
+}
+
+/* Implementation of
+ BtraceRecord.format [str]. */
+
+PyObject *
+recpy_bt_format (PyObject *self, void *closure)
+{
+ const struct thread_info * const tinfo = find_thread_ptid (inferior_ptid);
+ const struct btrace_config * config;
+
+ if (tinfo == NULL)
+ Py_RETURN_NONE;
+
+ config = btrace_conf (&tinfo->btrace);
+
+ if (config == NULL)
+ Py_RETURN_NONE;
+
+ return PyString_FromString (btrace_format_short_string (config->format));
+}
+
+/* Implementation of
+ BtraceRecord.replay_position [BtraceInstruction]. */
+
+PyObject *
+recpy_bt_replay_position (PyObject *self, void *closure)
+{
+ const struct thread_info * const tinfo = find_thread_ptid (inferior_ptid);
+
+ if (tinfo == NULL)
+ Py_RETURN_NONE;
+
+ if (tinfo->btrace.replay == NULL)
+ Py_RETURN_NONE;
+
+ return btpy_insn_new (inferior_ptid,
+ btrace_insn_number (tinfo->btrace.replay));
+}
+
+/* Implementation of
+ BtraceRecord.begin [BtraceInstruction]. */
+
+PyObject *
+recpy_bt_begin (PyObject *self, void *closure)
+{
+ struct thread_info * const tinfo = find_thread_ptid (inferior_ptid);
+ struct btrace_insn_iterator iterator;
+
+ if (tinfo == NULL)
+ Py_RETURN_NONE;
+
+ btrace_fetch (tinfo);
+
+ if (btrace_is_empty (tinfo))
+ Py_RETURN_NONE;
+
+ btrace_insn_begin (&iterator, &tinfo->btrace);
+ return btpy_insn_new (inferior_ptid, btrace_insn_number (&iterator));
+}
+
+/* Implementation of
+ BtraceRecord.end [BtraceInstruction]. */
+
+PyObject *
+recpy_bt_end (PyObject *self, void *closure)
+{
+ struct thread_info * const tinfo = find_thread_ptid (inferior_ptid);
+ struct btrace_insn_iterator iterator;
+
+ if (tinfo == NULL)
+ Py_RETURN_NONE;
+
+ btrace_fetch (tinfo);
+
+ if (btrace_is_empty (tinfo))
+ Py_RETURN_NONE;
+
+ btrace_insn_end (&iterator, &tinfo->btrace);
+ return btpy_insn_new (inferior_ptid, btrace_insn_number (&iterator));
+}
+
+/* Implementation of
+ BtraceRecord.instruction_history [list]. */
+
+PyObject *
+recpy_bt_instruction_history (PyObject *self, void *closure)
+{
+ struct thread_info * const tinfo = find_thread_ptid (inferior_ptid);
+ struct btrace_insn_iterator iterator;
+ unsigned long first = 0;
+ unsigned long last = 0;
+
+ if (tinfo == NULL)
+ Py_RETURN_NONE;
+
+ btrace_fetch (tinfo);
+
+ if (btrace_is_empty (tinfo))
+ Py_RETURN_NONE;
+
+ btrace_insn_begin (&iterator, &tinfo->btrace);
+ first = btrace_insn_number (&iterator);
+
+ btrace_insn_end (&iterator, &tinfo->btrace);
+ last = btrace_insn_number (&iterator);
+
+ return btpy_list_new (inferior_ptid, first, last, 1, &btpy_insn_type);
+}
+
+/* Implementation of
+ BtraceRecord.function_call_history [list]. */
+
+PyObject *
+recpy_bt_function_call_history (PyObject *self, void *closure)
+{
+ struct thread_info * const tinfo = find_thread_ptid (inferior_ptid);
+ struct btrace_call_iterator iterator;
+ unsigned long first = 0;
+ unsigned long last = 0;
+
+ if (tinfo == NULL)
+ Py_RETURN_NONE;
+
+ btrace_fetch (tinfo);
+
+ if (btrace_is_empty (tinfo))
+ Py_RETURN_NONE;
+
+ btrace_call_begin (&iterator, &tinfo->btrace);
+ first = btrace_call_number (&iterator);
+
+ btrace_call_end (&iterator, &tinfo->btrace);
+ last = btrace_call_number (&iterator);
+
+ return btpy_list_new (inferior_ptid, first, last, 1, &btpy_call_type);
+}
+
+/* Implementation of BtraceRecord.goto (self, BtraceInstruction) -> None. */
+
+PyObject *
+recpy_bt_goto (PyObject *self, PyObject *args)
+{
+ struct thread_info * const tinfo = find_thread_ptid (inferior_ptid);
+ const btpy_object *obj;
+
+ if (tinfo == NULL || btrace_is_empty (tinfo))
+ return PyErr_Format (gdbpy_gdb_error, _("Empty branch trace."));
+
+ if (!PyArg_ParseTuple (args, "O", &obj))
+ return NULL;
+
+ if (Py_TYPE (obj) != &btpy_insn_type)
+ return PyErr_Format (PyExc_TypeError, _("Argument must be instruction."));
+
+ TRY
+ {
+ struct btrace_insn_iterator iter;
+
+ btrace_insn_end (&iter, &tinfo->btrace);
+
+ if (btrace_insn_number (&iter) == obj->number)
+ target_goto_record_end ();
+ else
+ target_goto_record (obj->number);
+ }
+ CATCH (except, RETURN_MASK_ALL)
+ {
+ GDB_PY_HANDLE_EXCEPTION (except);
+ }
+ END_CATCH
+
+ Py_RETURN_NONE;
+}
+
+/* BtraceInstruction members. */
+
+struct PyGetSetDef btpy_insn_getset[] =
+{
+ { "number", btpy_number, NULL, "instruction number", NULL},
+ { "error", btpy_insn_error, NULL, "error number for gaps", NULL},
+ { "sal", btpy_insn_sal, NULL, "associated symbol and line", NULL},
+ { "pc", btpy_insn_pc, NULL, "instruction address", NULL},
+ { "data", btpy_insn_data, NULL, "raw instruction data", NULL},
+ { "decoded", btpy_insn_decode, NULL, "decoded instruction or error message \
+if the instruction is a gap", NULL},
+ { "size", btpy_insn_size, NULL, "instruction size in byte", NULL},
+ { "is_speculative", btpy_insn_is_speculative, NULL, "if the instruction was \
+executed speculatively", NULL},
+ {NULL}
+};
+
+/* BtraceFunctionCall members. */
+
+static PyGetSetDef btpy_call_getset[] =
+{
+ { "number", btpy_number, NULL, "function call number", NULL},
+ { "level", btpy_call_level, NULL, "call stack level", NULL},
+ { "symbol", btpy_call_symbol, NULL, "associated line and symbol", NULL},
+ { "instructions", btpy_call_instructions, NULL, "list of instructions in \
+this function segment", NULL},
+ { "up", btpy_call_up, NULL, "caller or returned-to function segment", NULL},
+ { "prev_sibling", btpy_call_prev_sibling, NULL, "previous segment of this \
+function", NULL},
+ { "next_sibling", btpy_call_next_sibling, NULL, "next segment of this \
+function", NULL},
+ {NULL}
+};
+
+/* BtraceList methods. */
+
+struct PyMethodDef btpy_list_methods[] =
+{
+ { "count", btpy_list_count, METH_O, "count number of occurences"},
+ { "index", btpy_list_index, METH_O, "index of entry"},
+ {NULL}
+};
+
+/* BtraceList sequence methods. */
+
+static PySequenceMethods btpy_list_sequence_methods =
+{
+ NULL
+};
+
+/* BtraceList mapping methods. Necessary for slicing. */
+
+static PyMappingMethods btpy_list_mapping_methods =
+{
+ NULL
+};
+
+/* Sets up the btrace record API. */
+
+int
+gdbpy_initialize_btrace (void)
+{
+ btpy_insn_type.tp_new = PyType_GenericNew;
+ btpy_insn_type.tp_flags = Py_TPFLAGS_DEFAULT;
+ btpy_insn_type.tp_basicsize = sizeof (btpy_object);
+ btpy_insn_type.tp_name = "gdb.BtraceInstruction";
+ btpy_insn_type.tp_doc = "GDB btrace instruction object";
+ btpy_insn_type.tp_getset = btpy_insn_getset;
+ btpy_insn_type.tp_richcompare = btpy_richcompare;
+ btpy_insn_type.tp_hash = btpy_hash;
+
+ btpy_call_type.tp_new = PyType_GenericNew;
+ btpy_call_type.tp_flags = Py_TPFLAGS_DEFAULT;
+ btpy_call_type.tp_basicsize = sizeof (btpy_object);
+ btpy_call_type.tp_name = "gdb.BtraceFunctionCall";
+ btpy_call_type.tp_doc = "GDB btrace call object";
+ btpy_call_type.tp_getset = btpy_call_getset;
+ btpy_call_type.tp_richcompare = btpy_richcompare;
+ btpy_call_type.tp_hash = btpy_hash;
+
+ btpy_list_type.tp_new = PyType_GenericNew;
+ btpy_list_type.tp_flags = Py_TPFLAGS_DEFAULT;
+ btpy_list_type.tp_basicsize = sizeof (btpy_list_object);
+ btpy_list_type.tp_name = "gdb.BtraceObjectList";
+ btpy_list_type.tp_doc = "GDB btrace list object";
+ btpy_list_type.tp_methods = btpy_list_methods;
+ btpy_list_type.tp_as_sequence = &btpy_list_sequence_methods;
+ btpy_list_type.tp_as_mapping = &btpy_list_mapping_methods;
+ btpy_list_type.tp_richcompare = btpy_list_richcompare;
+
+ btpy_list_sequence_methods.sq_item = btpy_list_item;
+ btpy_list_sequence_methods.sq_length = btpy_list_length;
+ btpy_list_sequence_methods.sq_contains = btpy_list_contains;
+
+ btpy_list_mapping_methods.mp_subscript = btpy_list_slice;
+
+ if (PyType_Ready (&btpy_insn_type) < 0
+ || PyType_Ready (&btpy_call_type) < 0
+ || PyType_Ready (&btpy_list_type) < 0)
+ return -1;
+ else
+ return 0;
+}
diff --git a/gdb/python/py-record-btrace.h b/gdb/python/py-record-btrace.h
new file mode 100644
index 0000000..aefb1e4
--- /dev/null
+++ b/gdb/python/py-record-btrace.h
@@ -0,0 +1,49 @@
+/* Python interface to btrace record targets.
+
+ Copyright 2016-2017 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/>. */
+
+#ifndef GDB_PY_RECORD_BTRACE_H
+#define GDB_PY_RECORD_BTRACE_H
+
+#include "python-internal.h"
+
+/* Implementation of record.method [str]. */
+extern PyObject *recpy_bt_method (PyObject *self, void *closure);
+
+/* Implementation of record.format [str]. */
+extern PyObject *recpy_bt_format (PyObject *self, void *closure);
+
+/* Implementation of record.goto (instruction) -> None. */
+extern PyObject *recpy_bt_goto (PyObject *self, PyObject *value);
+
+/* Implementation of record.instruction_history [list]. */
+extern PyObject *recpy_bt_instruction_history (PyObject *self, void *closure);
+
+/* Implementation of record.function_call_history [list]. */
+extern PyObject *recpy_bt_function_call_history (PyObject *self, void *closure);
+
+/* Implementation of record.replay_position [instruction]. */
+extern PyObject *recpy_bt_replay_position (PyObject *self, void *closure);
+
+/* Implementation of record.begin [instruction]. */
+extern PyObject *recpy_bt_begin (PyObject *self, void *closure);
+
+/* Implementation of record.end [instruction]. */
+extern PyObject *recpy_bt_end (PyObject *self, void *closure);
+
+#endif /* GDB_PY_RECORD_BTRACE_H */
diff --git a/gdb/python/py-record-full.c b/gdb/python/py-record-full.c
new file mode 100644
index 0000000..06e6693
--- /dev/null
+++ b/gdb/python/py-record-full.c
@@ -0,0 +1,39 @@
+/* Python interface to btrace instruction history.
+
+ Copyright 2016-2017 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 "py-record-full.h"
+
+/* Implementation of
+ BtraceRecord.method [str]. */
+
+PyObject *
+recpy_full_method (PyObject *self, void *closure)
+{
+ return PyString_FromString ("full");
+}
+
+/* Implementation of
+ BtraceRecord.format [str]. */
+
+PyObject *
+recpy_full_format (PyObject *self, void *closure)
+{
+ return PyString_FromString ("full");
+}
diff --git a/gdb/python/py-record-full.h b/gdb/python/py-record-full.h
new file mode 100644
index 0000000..30acc51
--- /dev/null
+++ b/gdb/python/py-record-full.h
@@ -0,0 +1,31 @@
+/* Python interface to full record targets.
+
+ Copyright 2016-2017 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/>. */
+
+#ifndef GDB_PY_RECORD_FULL_H
+#define GDB_PY_RECORD_FULL_H
+
+#include "python-internal.h"
+
+/* Implementation of record.method [str]. */
+extern PyObject *recpy_full_method (PyObject *self, void *value);
+
+/* Implementation of record.format [str]. */
+extern PyObject *recpy_full_format (PyObject *self, void *value);
+
+#endif /* GDB_PY_RECORD_FULL_H */
diff --git a/gdb/python/py-record.c b/gdb/python/py-record.c
index 27ecbb6..72922a4 100644
--- a/gdb/python/py-record.c
+++ b/gdb/python/py-record.c
@@ -21,6 +21,8 @@
#include "inferior.h"
#include "record.h"
#include "python-internal.h"
+#include "py-record-btrace.h"
+#include "py-record-full.h"
#include "target.h"
/* Python Record object. */
@@ -57,6 +59,14 @@ recpy_ptid (PyObject *self, void* closure)
static PyObject *
recpy_method (PyObject *self, void* closure)
{
+ const recpy_record_object * const obj = (recpy_record_object *) self;
+
+ if (obj->method == RECORD_METHOD_FULL)
+ return recpy_full_method (self, closure);
+
+ if (obj->method == RECORD_METHOD_BTRACE)
+ return recpy_bt_method (self, closure);
+
return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
}
@@ -65,6 +75,14 @@ recpy_method (PyObject *self, void* closure)
static PyObject *
recpy_format (PyObject *self, void* closure)
{
+ const recpy_record_object * const obj = (recpy_record_object *) self;
+
+ if (obj->method == RECORD_METHOD_FULL)
+ return recpy_full_format (self, closure);
+
+ if (obj->method == RECORD_METHOD_BTRACE)
+ return recpy_bt_format (self, closure);
+
return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
}
@@ -73,6 +91,11 @@ recpy_format (PyObject *self, void* closure)
static PyObject *
recpy_goto (PyObject *self, PyObject *value)
{
+ const recpy_record_object * const obj = (recpy_record_object *) self;
+
+ if (obj->method == RECORD_METHOD_BTRACE)
+ return recpy_bt_goto (self, value);
+
return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
}
@@ -81,6 +104,11 @@ recpy_goto (PyObject *self, PyObject *value)
static PyObject *
recpy_replay_position (PyObject *self, void *closure)
{
+ const recpy_record_object * const obj = (recpy_record_object *) self;
+
+ if (obj->method == RECORD_METHOD_BTRACE)
+ return recpy_bt_replay_position (self, closure);
+
return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
}
@@ -89,6 +117,11 @@ recpy_replay_position (PyObject *self, void *closure)
static PyObject *
recpy_instruction_history (PyObject *self, void* closure)
{
+ const recpy_record_object * const obj = (recpy_record_object *) self;
+
+ if (obj->method == RECORD_METHOD_BTRACE)
+ return recpy_bt_instruction_history (self, closure);
+
return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
}
@@ -97,6 +130,11 @@ recpy_instruction_history (PyObject *self, void* closure)
static PyObject *
recpy_function_call_history (PyObject *self, void* closure)
{
+ const recpy_record_object * const obj = (recpy_record_object *) self;
+
+ if (obj->method == RECORD_METHOD_BTRACE)
+ return recpy_bt_function_call_history (self, closure);
+
return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
}
@@ -105,6 +143,11 @@ recpy_function_call_history (PyObject *self, void* closure)
static PyObject *
recpy_begin (PyObject *self, void* closure)
{
+ const recpy_record_object * const obj = (recpy_record_object *) self;
+
+ if (obj->method == RECORD_METHOD_BTRACE)
+ return recpy_bt_begin (self, closure);
+
return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
}
@@ -113,6 +156,11 @@ recpy_begin (PyObject *self, void* closure)
static PyObject *
recpy_end (PyObject *self, void* closure)
{
+ const recpy_record_object * const obj = (recpy_record_object *) self;
+
+ if (obj->method == RECORD_METHOD_BTRACE)
+ return recpy_bt_end (self, closure);
+
return PyErr_Format (PyExc_NotImplementedError, _("Not implemented."));
}
diff --git a/gdb/python/python-internal.h b/gdb/python/python-internal.h
index c6af9f7..4dd413d 100644
--- a/gdb/python/python-internal.h
+++ b/gdb/python/python-internal.h
@@ -104,7 +104,9 @@
#define PyInt_Check PyLong_Check
#define PyInt_FromLong PyLong_FromLong
+#define PyInt_FromSsize_t PyLong_FromSsize_t
#define PyInt_AsLong PyLong_AsLong
+#define PyInt_AsSsize_t PyLong_AsSsize_t
#define PyString_FromString PyUnicode_FromString
#define PyString_Decode PyUnicode_Decode
@@ -439,6 +441,8 @@ int gdbpy_initialize_values (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_frames (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
+int gdbpy_initialize_btrace (void)
+ CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_record (void)
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION;
int gdbpy_initialize_symtabs (void)
diff --git a/gdb/python/python.c b/gdb/python/python.c
index f8b9f7e..f878f9a 100644
--- a/gdb/python/python.c
+++ b/gdb/python/python.c
@@ -1629,6 +1629,7 @@ do_start_initialization ()
|| gdbpy_initialize_frames () < 0
|| gdbpy_initialize_commands () < 0
|| gdbpy_initialize_record () < 0
+ || gdbpy_initialize_btrace () < 0
|| gdbpy_initialize_symbols () < 0
|| gdbpy_initialize_symtabs () < 0
|| gdbpy_initialize_blocks () < 0