1 # Copyright (C) 2016-2023 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
18 if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
26 # Run "show max-value-size" and return the interesting bit of the
27 # result. This is either the maximum size in bytes, or the string
29 proc get_max_value_size {} {
33 gdb_test_multiple "show max-value-size" "" {
34 -re "Maximum value size is ($decimal) bytes.*$gdb_prompt $" {
35 return $expect_out(1,string)
37 -re "Maximum value size is unlimited.*$gdb_prompt $" {
43 # Assuming that MAX_VALUE_SIZE is the current value for
44 # max-value-size, print the test values. Use TEST_PREFIX to make the
46 proc do_value_printing { max_value_size test_prefix } {
47 with_test_prefix ${test_prefix} {
48 gdb_test "p/d one" " = 0"
49 if {$max_value_size != "unlimited" && $max_value_size < 100} {
50 gdb_test "p/d one_hundred" \
51 "value requires 100 bytes, which is more than max-value-size"
53 gdb_test "p/d one_hundred" " = \\{0 <repeats 100 times>\\}"
55 gdb_test "p/d one_hundred \[99\]" " = 0"
59 # Install SET_VALUE as the value for max-value-size, then print the
61 proc set_and_check_max_value_size { set_value } {
62 if {$set_value == "unlimited"} {
63 set check_pattern "unlimited"
65 set check_pattern "${set_value} bytes"
68 gdb_test_no_output "set max-value-size ${set_value}"
69 gdb_test "show max-value-size" \
70 "Maximum value size is ${check_pattern}." \
71 "check that the value shows as ${check_pattern}"
73 do_value_printing ${set_value} "max-value-size is '${set_value}'"
76 # Check the default value is sufficient.
77 do_value_printing [get_max_value_size] "using initial max-value-size"
79 # Check some values for max-value-size that should prevent some
81 set_and_check_max_value_size 25
82 set_and_check_max_value_size 99
84 # Check values for max-value-size that should allow all allocations.
85 set_and_check_max_value_size 100
86 set_and_check_max_value_size 200
87 set_and_check_max_value_size "unlimited"
89 # Check that we can't set the maximum size stupidly low.
90 gdb_test "set max-value-size 1" \
91 "max-value-size set too low, increasing to \[0-9\]+ bytes"
92 gdb_test "set max-value-size 0" \
93 "max-value-size set too low, increasing to \[0-9\]+ bytes"
94 gdb_test "set max-value-size -5" \
95 "only -1 is allowed to set as unlimited"