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a0d5ef869d
On s390x-linux, I run into:
...
(gdb) python print(u[u_fields[0]])^M
99^M
(gdb) PASS: gdb.python/py-value-cc.exp: u's first field via field
python print(u[u_fields[1]])^M
0 '\000'^M
(gdb) FAIL: gdb.python/py-value-cc.exp: u's second field via field
...
There's a var u of this type:
...
union U {
int a;
char c;
};
...
and after assigning 99 to u.a, the test-case expects u.c to contain 99 (which
it does on x86_64), but instead it contains 0.
Fix this by instead assigning 0x63636363, to ensure that u.c == 99 for both
little and big endian.
Tested on x86_64-linux and s390x-linux.
102 lines
4.9 KiB
Plaintext
102 lines
4.9 KiB
Plaintext
# Copyright (C) 2012-2023 Free Software Foundation, Inc.
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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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#
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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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#
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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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# This file is part of the GDB testsuite. It tests the mechanism
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# exposing values to Python.
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require allow_cplus_tests allow_python_tests
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standard_testfile .cc
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if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug c++}]} {
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return -1
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}
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if ![runto_main] {
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return -1
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}
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gdb_breakpoint [gdb_get_line_number "Break here."]
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gdb_continue_to_breakpoint "Break here" ".*Break here.*"
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gdb_test "python print (str(gdb.parse_and_eval(\"a\").type))" "const A &"
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gdb_test "python print (str(gdb.parse_and_eval(\"a\").referenced_value().type))" "const A"
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gdb_test "python print (str(gdb.parse_and_eval(\"int_ref\").type))" "int &"
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gdb_test "python print (str(gdb.parse_and_eval(\"int_ref\").referenced_value().type))" "int"
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gdb_test "python print (str(gdb.parse_and_eval(\"int_ref\").referenced_value()))" "10"
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gdb_test "python print (str(gdb.parse_and_eval(\"int_ptr_ref\").dereference().type))" "int"
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gdb_test "python print (str(gdb.parse_and_eval(\"int_ptr_ref\").referenced_value().type))" "int_ptr"
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gdb_test "python print (str(gdb.parse_and_eval(\"int_ptr_ref\").referenced_value().dereference()))" "10"
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gdb_test "python print (str(gdb.parse_and_eval(\"int_ptr_ref\").referenced_value().referenced_value()))" "10"
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# Tests for gdb.Value[gdb.Field]
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gdb_test_no_output "python b = gdb.parse_and_eval('b')" "init b"
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gdb_test_no_output "python b_fields = b.type.fields()" "init b_fields"
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gdb_test_no_output "python b_obj = gdb.parse_and_eval('b_obj')" "init b_obj"
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gdb_test_no_output "python b_ref = gdb.parse_and_eval('b_ref')" "init b_ref"
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gdb_test_no_output "python b_td = gdb.parse_and_eval('b_td')" "init b_td"
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gdb_test_no_output "python u = gdb.parse_and_eval('u')" "init u"
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gdb_test_no_output "python u_fields = u.type.fields()" "init u_fields"
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gdb_test_no_output "python x = gdb.parse_and_eval('x')" "init x"
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gdb_test_no_output "python x_fields = x.type.fields()" "init x_fields"
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gdb_test_no_output "python uu = gdb.parse_and_eval('uu')" "init uu"
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gdb_test_no_output "python uu_fields = uu.type.fields()" "init uu_fields"
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gdb_test_no_output "python x_ptr = gdb.parse_and_eval('x_ptr')" "init x_ptr"
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gdb_test_no_output "python xtd = gdb.parse_and_eval('xtd')" "init xtd"
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gdb_test "python print(b\[b_fields\[1\]\])" "97 'a'" "b.a via field"
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gdb_test "python print(b\[b_fields\[0\]\].type)" "A" \
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"type of b's base class via field"
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gdb_test "python print(b\[b_fields\[0\]\]\['a'\])" "10" "b.A::a via field"
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gdb_test "python print(b_obj\[b_fields\[1\]\])" "98 'b'" "b_obj->a via field"
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gdb_test "python print(b_obj\[b_fields\[0\]\].type.target())" "A" \
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"type of b_obj's base class via field"
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gdb_test "python print(b_obj\[b_fields\[0\]\]\['a'\])" "100" \
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"b_obj->A::a via field"
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gdb_test "python print(b_ref\[b_fields\[1\]\])" "98 'b'" "b_ref.a via field"
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gdb_test "python print(b_ref\[b_fields\[0\]\].type.target())" "A" \
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"type of b_ref's base class via field"
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gdb_test "python print(b_ref\[b_fields\[0\]\]\['a'\])" "100" \
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"b_ref.A::a via field"
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gdb_test "python print(b_td\[b_fields\[1\]\])" "98 'b'" "b_td.a via field"
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gdb_test "python print(b_td\[b_fields\[0\]\].type.target())" "A" \
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"type of b_td's base class via field"
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gdb_test "python print(b_td\[b_fields\[0\]\]\['a'\])" "100" \
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"b_td.A::a via field"
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gdb_test "python print(hex(u\[u_fields\[0\]\]))" "0x63636363.*" \
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"u's first field via field"
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gdb_test "python print(u\[u_fields\[1\]\])" "99.*" "u's second field via field"
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gdb_test "python print(len(x_fields))" "2" "number for fields in u"
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gdb_test "python print(x\[x_fields\[0\]\]\['x'\])" "101" "x.x via field"
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gdb_test "python print(x\[x_fields\[1\]\]\['a'\])" "102" "x.a via field"
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gdb_test "python print(x_ptr\[x_fields\[0\]\]\['x'\])" "101" "x_ptr->x via field"
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gdb_test "python print(x_ptr\[x_fields\[1\]\]\['a'\])" "102" "x_ptr->a via field"
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gdb_test "python print(xtd\[x_fields\[0\]\]\['x'\])" "101" "xtd->x via field"
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gdb_test "python print(xtd\[x_fields\[1\]\]\['a'\])" "102" "xtd->a via field"
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gdb_test "python print(len(uu_fields))" "2" "number of fields in uu"
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gdb_test "python print(uu\[uu_fields\[0\]\]\['x'\])" "1000" "uu.x via field"
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gdb_test "python print(uu\[uu_fields\[1\]\]\['a'\])" "1000" "uu.a via field"
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# Test overloaded operators.
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gdb_test_no_output "python a = gdb.parse_and_eval('a')" "init a"
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gdb_test "python print(a + 5)" "10" "a + 5"
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