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

gdb/Makefile.in

@@ -461,6 +461,8 @@ SUBDIR_PYTHON_OBS = \
 	py-prettyprint.o \
 	py-progspace.o \
 	py-record.o \
+	py-record-btrace.o \
+	py-record-full.o \
 	py-signalevent.o \
 	py-stopevent.o \
 	py-symbol.o \
@@ -502,6 +504,8 @@ SUBDIR_PYTHON_SRCS = \
 	python/py-prettyprint.c \
 	python/py-progspace.c \
 	python/py-record.c \
+	python/py-record-btrace.c \
+	python/py-record-full.c \
 	python/py-signalevent.c \
 	python/py-stopevent.c \
 	python/py-symbol.c \

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 */

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");
+}

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 */

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."));
 }
 

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)

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