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# Copyright (C) 2016-2021 Free Software Foundation, Inc.
# 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/>.
standard_testfile
if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
return -1
}
if ![runto_main] then {
fail "can't run to main"
return 0
}
# Run "show max-value-size" and return the interesting bit of the
# result. This is either the maximum size in bytes, or the string
# "unlimited".
proc get_max_value_size {} {
global gdb_prompt
global decimal
gdb_test_multiple "show max-value-size" "" {
-re "Maximum value size is ($decimal) bytes.*$gdb_prompt $" {
return $expect_out(1,string)
}
-re "Maximum value size is unlimited.*$gdb_prompt $" {
return "unlimited"
}
}
}
# Assuming that MAX_VALUE_SIZE is the current value for
# max-value-size, print the test values. Use TEST_PREFIX to make the
# test names unique.
proc do_value_printing { max_value_size test_prefix } {
with_test_prefix ${test_prefix} {
gdb_test "p/d one" " = 0"
if { $max_value_size != "unlimited" && $max_value_size < 100 } then {
gdb_test "p/d one_hundred" \
"value requires 100 bytes, which is more than max-value-size"
} else {
gdb_test "p/d one_hundred" " = \\{0 <repeats 100 times>\\}"
}
gdb_test "p/d one_hundred \[99\]" " = 0"
}
}
# Install SET_VALUE as the value for max-value-size, then print the
# test values.
proc set_and_check_max_value_size { set_value } {
if { $set_value == "unlimited" } then {
set check_pattern "unlimited"
} else {
set check_pattern "${set_value} bytes"
}
gdb_test_no_output "set max-value-size ${set_value}"
gdb_test "show max-value-size" \
"Maximum value size is ${check_pattern}." \
"check that the value shows as ${check_pattern}"
do_value_printing ${set_value} "max-value-size is '${set_value}'"
}
# Check the default value is sufficient.
do_value_printing [get_max_value_size] "using initial max-value-size"
# Check some values for max-value-size that should prevent some
# allocations.
set_and_check_max_value_size 25
set_and_check_max_value_size 99
# Check values for max-value-size that should allow all allocations.
set_and_check_max_value_size 100
set_and_check_max_value_size 200
set_and_check_max_value_size "unlimited"
# Check that we can't set the maximum size stupidly low.
gdb_test "set max-value-size 1" \
"max-value-size set too low, increasing to \[0-9\]+ bytes"
gdb_test "set max-value-size 0" \
"max-value-size set too low, increasing to \[0-9\]+ bytes"
gdb_test "set max-value-size -5" \
"only -1 is allowed to set as unlimited"
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