1# Copyright 2019-2020 Free Software Foundation, Inc. 2 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. 7# 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. 12# 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/> . 15 16# Exercise passing and returning arguments in Fortran. This test case 17# is based on the GNU Fortran Argument passing conventions. 18 19if {[skip_fortran_tests]} { return -1 } 20 21standard_testfile ".f90" 22 23if {[prepare_for_testing ${testfile}.exp ${testfile} ${srcfile} {debug f90}]} { 24 return -1 25} 26 27if {![runto [gdb_get_line_number "post_init"]]} then { 28 perror "couldn't run to breakpoint post_init" 29 continue 30} 31 32# Use inspired by gdb.base/callfuncs.exp. 33gdb_test_no_output "set unwindonsignal on" 34 35# Baseline: function and subroutine call with no arguments. 36gdb_test "p no_arg()" " = .TRUE." 37gdb_test_no_output "call no_arg_subroutine()" 38 39# Argument class: literal, inferior variable, convenience variable, 40# function call return value, function. 41# Paragraph 3: Variables are passed by reference. 42gdb_test "p one_arg(.TRUE.)" " = .TRUE." 43gdb_test "p one_arg(untrue)" " = .FALSE." 44gdb_test_no_output "set \$var = .FALSE." 45gdb_test "p one_arg(\$var)" " = .FALSE." 46gdb_test "p one_arg(one_arg(.TRUE.))" " = .TRUE." 47gdb_test "p one_arg(one_arg(.FALSE.))" " = .FALSE." 48gdb_test_no_output "call run(no_arg_subroutine)" 49 50# Return: constant. 51gdb_test "p return_constant()" " = 17" 52# Return derived type and call a function in a module. 53gdb_test "p derived_types_and_module_calls::build_cart(7,8)" \ 54 " = \\\( x = 7, y = 8 \\\)" 55 56# Two hidden arguments. 1. returned string and 2. string length. 57# Paragraph 1. 58gdb_test "p return_string(returned_string_debugger, 40)" "" 59gdb_test "p returned_string_debugger" "'returned in hidden first argument '" 60 61# Argument type: real(kind=4), complex, array, pointer, derived type, 62# derived type with allocatable, nested derived type. 63# Paragraph 4: pointer. 64gdb_test "p pointer_function(int_pointer)" " = 87" 65# Paragraph 4: array. 66gdb_test "call array_function(integer_array)" " = 17" 67gdb_test "p derived_types_and_module_calls::pass_cart(c)" \ 68 " = \\\( x = 2, y = 4 \\\)" 69# Allocatable elements in a derived type. Technical report ISO/IEC 15581. 70gdb_test "p derived_types_and_module_calls::pass_cart_nd(c_nd)" " = 4" 71gdb_test "p derived_types_and_module_calls::pass_nested_cart(nested_c)" \ 72 "= \\\( d = \\\( x = 1, y = 2 \\\), z = 3 \\\)" 73# Result within some tolerance. 74gdb_test "p real4_argument(real4)" " = 3.${decimal}" 75 76# Paragraph 2. Complex argument and return. 77gdb_test "p complex_argument(fft)" " = \\\(2.${decimal},3.${decimal}\\\)" 78 79# Function with optional arguments. 80# Paragraph 10: Option reference arguments. 81gdb_test "p sum_some(1,2,3)" " = 6" 82 83# There is currently no mechanism to call a function without all 84# optional parameters present. 85setup_kfail "gdb/24147" *-*-* 86gdb_test "p sum_some(1,2)" " = 3" 87 88# Paragraph 10: optional value arguments. There is insufficient DWARF 89# information to reliably make this case work. 90setup_kfail "gdb/24305" *-*-* 91gdb_test "p one_arg_value(10)" " = 10" 92 93# DW_AT_artificial formal parameters must be passed manually. This 94# assert will fail if the length of the string is wrapped in a pointer. 95# Paragraph 7: Character type. 96gdb_test "p hidden_string_length('arbitrary string', 16)" " = 16" 97 98# Several arguments. 99gdb_test "p several_arguments(2, 3, 5)" " = 10" 100gdb_test "p mix_of_scalar_arguments(5, .TRUE., 3.5)" " = 9" 101 102# Calling other functions: Recursive call. 103gdb_test "p fibonacci(6)" " = 8" 104