# Copyright 2001-2024 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/>.

# Copied from gdb.base/huge.exp, written by Michael Snyder
# (msnyder@redhat.com).

# Define if you want to skip this test
# (could be very time-consuming on remote targets with slow connection).
#
require {!target_info exists gdb,skip_huge_test}

load_lib "ada.exp"

require allow_ada_tests

standard_ada_testfile foo

set max [expr 2 * 1024 * 1024]
set min 16

set opts {}
lappend opts debug

set compilation_succeeded 0
for { set size $max } { $size >= $min } { set size [expr $size / 2] } {
    set try_opts [concat $opts [list additional_flags=-gnateDCRASHGDB=$size]]
    # Use gdb_compile_ada_1 to prevent failed compilations from producing a
    # FAIL.
    if {[gdb_compile_ada_1 "${srcfile}" "${binfile}" executable \
	     $try_opts] != "" } {
	continue
    }

    set compilation_succeeded 1
    break
}
require {expr $compilation_succeeded}

foreach_with_prefix varname {Arr Packed_Arr} {
    clean_restart ${testfile}

    save_vars { timeout } {
	set timeout 30

	if {![runto "foo"]} {
	    return
	}

	gdb_test_no_output "set max-value-size unlimited"
	gdb_test_no_output "maint set per-command space on"
	set re1 \
	    [list \
		 [string_to_regexp $] \
		 $decimal \
		 " = " \
		 [string_to_regexp "(0 <repeats "] \
		 $decimal \
		 [string_to_regexp " times>)"]]
	set re2 \
	    [list \
		 "Space used: $decimal" \
		 [string_to_regexp " (+"] \
		 "($decimal) for this command" \
		 [string_to_regexp ")"]]
	set re [multi_line [join $re1 ""]  [join $re2 ""]]
	set space_used -1
	gdb_test_multiple "print $varname" "print a very large data object" {
	    -re -wrap $re {
		set space_used $expect_out(1,string)
		pass $gdb_test_name
	    }
	}

	set test "not too much space used"
	if { $space_used == -1 } {
	    unsupported $test
	} else {
	    # At 56 passes with and without the fix, so use 55.
	    gdb_assert {$space_used < [expr 55 * 4 * $size] } $test
	}
    }
}