1# Copyright 2019-2023 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 27with_complaints 5 { 28 set cmd "maint expand-symtabs $srcfile" 29 set cmd_regexp [string_to_regexp $cmd] 30 set re_kfail [concat "During symbol reading:" \ 31 " unable to find array range"] 32 gdb_test_multiple $cmd "no complaints in srcfile" { 33 -re -wrap "$re_kfail.*" { 34 kfail symtab/27388 $gdb_test_name 35 } 36 -re "^$cmd_regexp\r\n$gdb_prompt $" { 37 pass $gdb_test_name 38 } 39 } 40} 41 42if {![runto [gdb_get_line_number "post_init"]]} { 43 return 44} 45 46# Use inspired by gdb.base/callfuncs.exp. 47gdb_test_no_output "set unwindonsignal on" 48 49# Baseline: function and subroutine call with no arguments. 50gdb_test "p no_arg()" " = .TRUE." 51gdb_test_no_output "call no_arg_subroutine()" 52 53# Argument class: literal, inferior variable, convenience variable, 54# function call return value, function. 55# Paragraph 3: Variables are passed by reference. 56gdb_test "p one_arg(.TRUE.)" " = .TRUE." 57gdb_test "p one_arg(untrue)" " = .FALSE." 58gdb_test_no_output "set \$var = .FALSE." 59gdb_test "p one_arg(\$var)" " = .FALSE." 60gdb_test "p one_arg(one_arg(.TRUE.))" " = .TRUE." 61gdb_test "p one_arg(one_arg(.FALSE.))" " = .FALSE." 62gdb_test_no_output "call run(no_arg_subroutine)" 63 64# Return: constant. 65gdb_test "p return_constant()" " = 17" 66# Return derived type and call a function in a module. 67gdb_test "p derived_types_and_module_calls::build_cart(7,8)" \ 68 " = \\\( x = 7, y = 8 \\\)" 69 70# Two hidden arguments. 1. returned string and 2. string length. 71# Paragraph 1. 72gdb_test "p return_string(returned_string_debugger, 40)" "" 73gdb_test "p returned_string_debugger" "'returned in hidden first argument '" 74 75# Argument type: real(kind=4), complex, array, pointer, derived type, 76# derived type with allocatable, nested derived type. 77# Paragraph 4: pointer. 78gdb_test "p pointer_function(int_pointer)" " = 87" 79# Paragraph 4: array. 80gdb_test "call array_function(integer_array)" " = 17" 81gdb_test "p derived_types_and_module_calls::pass_cart(c)" \ 82 " = \\\( x = 2, y = 4 \\\)" 83# Allocatable elements in a derived type. Technical report ISO/IEC 15581. 84gdb_test "p derived_types_and_module_calls::pass_cart_nd(c_nd)" " = 4" 85gdb_test "p derived_types_and_module_calls::pass_nested_cart(nested_c)" \ 86 "= \\\( d = \\\( x = 1, y = 2 \\\), z = 3 \\\)" 87# Result within some tolerance. 88gdb_test "p real4_argument(real4)" " = 3.${decimal}" 89 90# Paragraph 2. Complex argument and return. 91gdb_test "p complex_argument(fft)" " = \\\(2.${decimal},3.${decimal}\\\)" 92 93# Function with optional arguments. 94# Paragraph 10: Option reference arguments. 95gdb_test "p sum_some(1,2,3)" " = 6" 96 97# There is currently no mechanism to call a function without all 98# optional parameters present. 99setup_kfail "gdb/24147" *-*-* 100gdb_test "p sum_some(1,2)" " = 3" 101 102# Paragraph 10: optional value arguments. There is insufficient DWARF 103# information to reliably make this case work. 104setup_kfail "gdb/24305" *-*-* 105gdb_test "p one_arg_value(10)" " = 10" 106 107# DW_AT_artificial formal parameters must be passed manually. This 108# assert will fail if the length of the string is wrapped in a pointer. 109# Paragraph 7: Character type. 110gdb_test "p hidden_string_length('arbitrary string', 16)" " = 16" 111 112# Several arguments. 113gdb_test "p several_arguments(2, 3, 5)" " = 10" 114gdb_test "p mix_of_scalar_arguments(5, .TRUE., 3.5)" " = 9" 115 116# Calling other functions: Recursive call. 117gdb_test "p fibonacci(6)" " = 8" 118