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/* Self tests for gdbarch for GDB, the GNU debugger.
Copyright (C) 2017-2022 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 "gdbsupport/selftest.h"
#include "selftest-arch.h"
#include "target.h"
#include "test-target.h"
#include "target-float.h"
#include "gdbsupport/def-vector.h"
#include "gdbarch.h"
#include "scoped-mock-context.h"
namespace selftests {
/* Test gdbarch methods register_to_value and value_to_register. */
static void
register_to_value_test (struct gdbarch *gdbarch)
{
const struct builtin_type *builtin = builtin_type (gdbarch);
struct type *types[] =
{
builtin->builtin_void,
builtin->builtin_char,
builtin->builtin_short,
builtin->builtin_int,
builtin->builtin_long,
builtin->builtin_signed_char,
builtin->builtin_unsigned_short,
builtin->builtin_unsigned_int,
builtin->builtin_unsigned_long,
builtin->builtin_float,
builtin->builtin_double,
builtin->builtin_long_double,
builtin->builtin_complex,
builtin->builtin_double_complex,
builtin->builtin_string,
builtin->builtin_bool,
builtin->builtin_long_long,
builtin->builtin_unsigned_long_long,
builtin->builtin_int8,
builtin->builtin_uint8,
builtin->builtin_int16,
builtin->builtin_uint16,
builtin->builtin_int32,
builtin->builtin_uint32,
builtin->builtin_int64,
builtin->builtin_uint64,
builtin->builtin_int128,
builtin->builtin_uint128,
builtin->builtin_char16,
builtin->builtin_char32,
};
scoped_mock_context<test_target_ops> mockctx (gdbarch);
struct frame_info *frame = get_current_frame ();
const int num_regs = gdbarch_num_cooked_regs (gdbarch);
/* Test gdbarch methods register_to_value and value_to_register with
different combinations of register numbers and types. */
for (const auto &type : types)
{
for (auto regnum = 0; regnum < num_regs; regnum++)
{
if (gdbarch_convert_register_p (gdbarch, regnum, type))
{
std::vector<gdb_byte> expected (type->length (), 0);
if (type->code () == TYPE_CODE_FLT)
{
/* Generate valid float format. */
target_float_from_string (expected.data (), type, "1.25");
}
else
{
for (auto j = 0; j < expected.size (); j++)
expected[j] = (regnum + j) % 16;
}
gdbarch_value_to_register (gdbarch, frame, regnum, type,
expected.data ());
/* Allocate two bytes more for overflow check. */
std::vector<gdb_byte> buf (type->length () + 2, 0);
int optim, unavail, ok;
/* Set the fingerprint in the last two bytes. */
buf [type->length ()]= 'w';
buf [type->length () + 1]= 'l';
ok = gdbarch_register_to_value (gdbarch, frame, regnum, type,
buf.data (), &optim, &unavail);
SELF_CHECK (ok);
SELF_CHECK (!optim);
SELF_CHECK (!unavail);
SELF_CHECK (buf[type->length ()] == 'w');
SELF_CHECK (buf[type->length () + 1] == 'l');
for (auto k = 0; k < type->length (); k++)
SELF_CHECK (buf[k] == expected[k]);
}
}
}
}
} // namespace selftests
void _initialize_gdbarch_selftests ();
void
_initialize_gdbarch_selftests ()
{
selftests::register_test_foreach_arch ("register_to_value",
selftests::register_to_value_test);
}
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