gdb/testsuite/gdb.fortran/logical.exp

   1 # Copyright 2010-2020 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 # This file was written by Jan Kratochvil <jan.kratochvil@redhat.com>.
  17
  18 standard_testfile .f90
  19 load_lib fortran.exp
  20
  21 if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug f90 quiet}]} {
  22     return -1
  23 }
  24
  25 if { ![fortran_runto_main] } {
  26     perror "Could not run to main."
  27     continue
  28 }
  29
  30 gdb_breakpoint [gdb_get_line_number "stop-here"]
  31 gdb_continue_to_breakpoint "stop-here" ".*stop-here.*"
  32 gdb_test "p l" " = \\.TRUE\\."
  33 gdb_test "p l1" " = \\.TRUE\\."
  34 gdb_test "p l2" " = \\.TRUE\\."
  35 gdb_test "p l4" " = \\.TRUE\\."
  36 gdb_test "p l8" " = \\.TRUE\\."
  37
  38 # Different Fortran compilers use different values for logical true.
  39 # Check how GDB handles this by modifying the underlying value for our
  40 # logical variables and check they still print as true.
  41 foreach_with_prefix var { l l1 l2 l4 l8 } {
  42     set len [get_integer_valueof "sizeof (${var})" "get sizeof ${var}"]
  43     set addr [get_hexadecimal_valueof "&l" "get address of ${var}"]
  44
  45     for { set i 0 } { $i < $len } { incr i } {
  46         with_test_prefix "byte $i" {
  47             gdb_test_no_output "set *((character *) ${addr}) = 0xff" \
  48                 "set contents of byte at offset $i"
  49             gdb_test "p l" " = \\.TRUE\\."
  50             incr addr
  51             set addr [format "0x%x" $addr]
  52         }
  53     }
  54 }