# 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}

require allow_fortran_tests

load_lib fortran.exp

standard_testfile .F90

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

set opts {}
lappend opts debug
lappend opts f90

set compilation_succeeded 0
for { set size [expr $max] } { $size >= $min } { set size [expr $size / 2] } {
    set try_opts [concat $opts [list additional_flags=-DCRASH_GDB=$size]]
    with_test_prefix CRASH_GDB=$size {
	if { [build_executable $testfile.exp $testfile $srcfile $try_opts] == -1 } {
	    continue
	}
    }

    set compilation_succeeded 1
    break
}
require {expr $compilation_succeeded}

# Start with a fresh gdb.
clean_restart ${binfile}

save_vars { timeout } {
    set timeout 30

    if {![fortran_runto_main]} {
	return -1
    }

    gdb_test_no_output "set max-value-size unlimited"

    # Not needed for the C variant, see PR exp/30817.
    gdb_test_no_output "set print elements 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 array1" "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 $test
    } else {
	# At 112 passes with and without the fix, so use 111.
	gdb_assert {$space_used < [expr 111 * 4 * $size] } $test
    }
}