/* Function to set the disassembly window's content.
Disassemble count lines starting at pc.
Return address of the count'th instruction after pc. */
static CORE_ADDR
tui_disassemble (struct tui_asm_line* asm_lines, CORE_ADDR pc, int count)
{
struct ui_file *gdb_dis_out;
/* now init the ui_file structure */
gdb_dis_out = tui_sfileopen (256);
/* Now construct each line */
for (; count > 0; count--, asm_lines++)
{
if (asm_lines->addr_string)
xfree (asm_lines->addr_string);
if (asm_lines->insn)
xfree (asm_lines->insn);
print_address (pc, gdb_dis_out);
asm_lines->addr = pc;
asm_lines->addr_string = xstrdup (tui_file_get_strbuf (gdb_dis_out));
ui_file_rewind (gdb_dis_out);
pc = pc + gdb_print_insn (pc, gdb_dis_out);
asm_lines->insn = xstrdup (tui_file_get_strbuf (gdb_dis_out));
/* reset the buffer to empty */
ui_file_rewind (gdb_dis_out);
}
ui_file_delete (gdb_dis_out);
return pc;
}
/* Function to set the disassembly window's content.
Disassemble count lines starting at pc.
Return address of the count'th instruction after pc. */
static CORE_ADDR
tui_disassemble (struct gdbarch *gdbarch, struct tui_asm_line *asm_lines,
CORE_ADDR pc, int count)
{
string_file gdb_dis_out;
/* Now construct each line. */
for (; count > 0; count--, asm_lines++)
{
if (asm_lines->addr_string)
xfree (asm_lines->addr_string);
if (asm_lines->insn)
xfree (asm_lines->insn);
print_address (gdbarch, pc, &gdb_dis_out);
asm_lines->addr = pc;
asm_lines->addr_string = xstrdup (gdb_dis_out.c_str ());
gdb_dis_out.clear ();
pc = pc + gdb_print_insn (gdbarch, pc, &gdb_dis_out, NULL);
asm_lines->insn = xstrdup (gdb_dis_out.c_str ());
/* Reset the buffer to empty. */
gdb_dis_out.clear ();
}
return pc;
}
int
gdb_insn_length (struct gdbarch *gdbarch, CORE_ADDR addr)
{
static struct ui_file *null_stream = NULL;
/* Dummy file descriptor for the disassembler. */
if (!null_stream)
{
null_stream = ui_file_new ();
make_final_cleanup (do_ui_file_delete, null_stream);
}
return gdb_print_insn (gdbarch, addr, null_stream, NULL);
}
static PyObject *
archpy_disassemble (PyObject *self, PyObject *args, PyObject *kw)
{
static char *keywords[] = { "start_pc", "end_pc", "count", NULL };
CORE_ADDR start, end = 0;
CORE_ADDR pc;
gdb_py_ulongest start_temp;
long count = 0, i;
PyObject *end_obj = NULL, *count_obj = NULL;
struct gdbarch *gdbarch = NULL;
ARCHPY_REQUIRE_VALID (self, gdbarch);
if (!PyArg_ParseTupleAndKeywords (args, kw, GDB_PY_LLU_ARG "|OO", keywords,
&start_temp, &end_obj, &count_obj))
return NULL;
start = start_temp;
if (end_obj)
{
/* Make a long logic check first. In Python 3.x, internally,
all integers are represented as longs. In Python 2.x, there
is still a differentiation internally between a PyInt and a
PyLong. Explicitly do this long check conversion first. In
GDB, for Python 3.x, we #ifdef PyInt = PyLong. This check has
to be done first to ensure we do not lose information in the
conversion process. */
if (PyLong_Check (end_obj))
end = PyLong_AsUnsignedLongLong (end_obj);
#if PY_MAJOR_VERSION == 2
else if (PyInt_Check (end_obj))
/* If the end_pc value is specified without a trailing 'L', end_obj will
be an integer and not a long integer. */
end = PyInt_AsLong (end_obj);
#endif
else
{
PyErr_SetString (PyExc_TypeError,
_("Argument 'end_pc' should be a (long) integer."));
return NULL;
}
if (end < start)
{
PyErr_SetString (PyExc_ValueError,
_("Argument 'end_pc' should be greater than or "
"equal to the argument 'start_pc'."));
return NULL;
}
}
if (count_obj)
{
count = PyInt_AsLong (count_obj);
if (PyErr_Occurred () || count < 0)
{
PyErr_SetString (PyExc_TypeError,
_("Argument 'count' should be an non-negative "
"integer."));
return NULL;
}
}
gdbpy_ref<> result_list (PyList_New (0));
if (result_list == NULL)
return NULL;
for (pc = start, i = 0;
/* All args are specified. */
(end_obj && count_obj && pc <= end && i < count)
/* end_pc is specified, but no count. */
|| (end_obj && count_obj == NULL && pc <= end)
/* end_pc is not specified, but a count is. */
|| (end_obj == NULL && count_obj && i < count)
/* Both end_pc and count are not specified. */
|| (end_obj == NULL && count_obj == NULL && pc == start);)
{
int insn_len = 0;
gdbpy_ref<> insn_dict (PyDict_New ());
if (insn_dict == NULL)
return NULL;
if (PyList_Append (result_list.get (), insn_dict.get ()))
return NULL; /* PyList_Append Sets the exception. */
string_file stb;
TRY
{
insn_len = gdb_print_insn (gdbarch, pc, &stb, NULL);
}
CATCH (except, RETURN_MASK_ALL)
{
gdbpy_convert_exception (except);
return NULL;
}
END_CATCH
if (PyDict_SetItemString (insn_dict.get (), "addr",
gdb_py_long_from_ulongest (pc))
|| PyDict_SetItemString (insn_dict.get (), "asm",
PyString_FromString (!stb.empty ()
? stb.c_str ()
: "<unknown>"))
|| PyDict_SetItemString (insn_dict.get (), "length",
PyInt_FromLong (insn_len)))
return NULL;
pc += insn_len;
i++;
}
static PyObject *
archpy_disassemble (PyObject *self, PyObject *args, PyObject *kw)
{
static char *keywords[] = { "start_pc", "end_pc", "count", NULL };
CORE_ADDR start, end = 0;
CORE_ADDR pc;
gdb_py_ulongest start_temp;
long count = 0, i;
PyObject *result_list, *end_obj = NULL, *count_obj = NULL;
struct gdbarch *gdbarch = NULL;
ARCHPY_REQUIRE_VALID (self, gdbarch);
if (!PyArg_ParseTupleAndKeywords (args, kw, GDB_PY_LLU_ARG "|OO", keywords,
&start_temp, &end_obj, &count_obj))
return NULL;
start = start_temp;
if (end_obj)
{
if (PyLong_Check (end_obj))
end = PyLong_AsUnsignedLongLong (end_obj);
else if (PyInt_Check (end_obj))
/* If the end_pc value is specified without a trailing 'L', end_obj will
be an integer and not a long integer. */
end = PyInt_AsLong (end_obj);
else
{
Py_DECREF (end_obj);
Py_XDECREF (count_obj);
PyErr_SetString (PyExc_TypeError,
_("Argument 'end_pc' should be a (long) integer."));
return NULL;
}
if (end < start)
{
Py_DECREF (end_obj);
Py_XDECREF (count_obj);
PyErr_SetString (PyExc_ValueError,
_("Argument 'end_pc' should be greater than or "
"equal to the argument 'start_pc'."));
return NULL;
}
}
if (count_obj)
{
count = PyInt_AsLong (count_obj);
if (PyErr_Occurred () || count < 0)
{
Py_DECREF (count_obj);
Py_XDECREF (end_obj);
PyErr_SetString (PyExc_TypeError,
_("Argument 'count' should be an non-negative "
"integer."));
return NULL;
}
}
result_list = PyList_New (0);
if (result_list == NULL)
return NULL;
for (pc = start, i = 0;
/* All args are specified. */
(end_obj && count_obj && pc <= end && i < count)
/* end_pc is specified, but no count. */
|| (end_obj && count_obj == NULL && pc <= end)
/* end_pc is not specified, but a count is. */
|| (end_obj == NULL && count_obj && i < count)
/* Both end_pc and count are not specified. */
|| (end_obj == NULL && count_obj == NULL && pc == start);)
{
int insn_len = 0;
char *as = NULL;
struct ui_file *memfile = mem_fileopen ();
PyObject *insn_dict = PyDict_New ();
volatile struct gdb_exception except;
if (insn_dict == NULL)
{
Py_DECREF (result_list);
ui_file_delete (memfile);
return NULL;
}
if (PyList_Append (result_list, insn_dict))
{
Py_DECREF (result_list);
Py_DECREF (insn_dict);
ui_file_delete (memfile);
return NULL; /* PyList_Append Sets the exception. */
}
TRY_CATCH (except, RETURN_MASK_ALL)
{
insn_len = gdb_print_insn (gdbarch, pc, memfile, NULL);
}
if (except.reason < 0)
{
Py_DECREF (result_list);
ui_file_delete (memfile);
gdbpy_convert_exception (except);
return NULL;
}
as = ui_file_xstrdup (memfile, NULL);
if (PyDict_SetItemString (insn_dict, "addr",
gdb_py_long_from_ulongest (pc))
|| PyDict_SetItemString (insn_dict, "asm",
PyString_FromString (*as ? as : "<unknown>"))
|| PyDict_SetItemString (insn_dict, "length",
PyInt_FromLong (insn_len)))
{
Py_DECREF (result_list);
ui_file_delete (memfile);
xfree (as);
return NULL;
}
pc += insn_len;
i++;
ui_file_delete (memfile);
xfree (as);
}
static SCM
gdbscm_arch_disassemble (SCM self, SCM start_scm, SCM rest)
{
arch_smob *a_smob
= arscm_get_arch_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
struct gdbarch *gdbarch = arscm_get_gdbarch (a_smob);
const SCM keywords[] = {
port_keyword, offset_keyword, size_keyword, count_keyword, SCM_BOOL_F
};
int port_arg_pos = -1, offset_arg_pos = -1;
int size_arg_pos = -1, count_arg_pos = -1;
SCM port = SCM_BOOL_F;
ULONGEST offset = 0;
unsigned int count = 1;
unsigned int size;
ULONGEST start_arg;
CORE_ADDR start, end;
CORE_ADDR pc;
unsigned int i;
int using_port;
SCM result;
gdbscm_parse_function_args (FUNC_NAME, SCM_ARG2, keywords, "U#OUuu",
start_scm, &start_arg, rest,
&port_arg_pos, &port,
&offset_arg_pos, &offset,
&size_arg_pos, &size,
&count_arg_pos, &count);
/* START is first stored in a ULONGEST because we don't have a format char
for CORE_ADDR, and it's not really worth it to have one yet. */
start = start_arg;
if (port_arg_pos > 0)
{
SCM_ASSERT_TYPE (gdbscm_is_false (port)
|| gdbscm_is_true (scm_input_port_p (port)),
port, port_arg_pos, FUNC_NAME, _("input port"));
}
using_port = gdbscm_is_true (port);
if (offset_arg_pos > 0
&& (port_arg_pos < 0
|| gdbscm_is_false (port)))
{
gdbscm_out_of_range_error (FUNC_NAME, offset_arg_pos,
gdbscm_scm_from_ulongest (offset),
_("offset provided but port is missing"));
}
if (size_arg_pos > 0)
{
if (size == 0)
return SCM_EOL;
/* For now be strict about start+size overflowing. If it becomes
a nuisance we can relax things later. */
if (start + size < start)
{
gdbscm_out_of_range_error (FUNC_NAME, 0,
scm_list_2 (gdbscm_scm_from_ulongest (start),
gdbscm_scm_from_ulongest (size)),
_("start+size overflows"));
}
end = start + size - 1;
}
else
end = ~(CORE_ADDR) 0;
if (count == 0)
return SCM_EOL;
result = SCM_EOL;
for (pc = start, i = 0; pc <= end && i < count; )
{
int insn_len = 0;
struct ui_file *memfile = mem_fileopen ();
struct cleanup *cleanups = make_cleanup_ui_file_delete (memfile);
TRY
{
if (using_port)
{
insn_len = gdbscm_print_insn_from_port (gdbarch, port, offset,
pc, memfile, NULL);
}
else
insn_len = gdb_print_insn (gdbarch, pc, memfile, NULL);
}
CATCH (except, RETURN_MASK_ALL)
{
GDBSCM_HANDLE_GDB_EXCEPTION_WITH_CLEANUPS (except, cleanups);
}
END_CATCH
std::string as = ui_file_as_string (memfile);
result = scm_cons (dascm_make_insn (pc, as.c_str (), insn_len),
result);
pc += insn_len;
i++;
do_cleanups (cleanups);
}
