gcc/testsuite/gcc.misc-tests/output.exp

   1 # Copyright (C) 2005-2018 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 GCC; see the file COPYING3.  If not see
  15 # <http://www.gnu.org/licenses/>.
  16
  17 # Run GCC with the input file also specified as output file. Check that the
  18 # compiler prints an error message and does not overwrite the input file.
  19
  20 load_lib gcc-defs.exp
  21 load_lib target-supports.exp
  22
  23 # These tests don't run runtest_file_p consistently if it
  24 # doesn't return the same values, so disable parallelization
  25 # of this *.exp file.  The first parallel runtest to reach
  26 # this will run all the tests serially.
  27 if ![gcc_parallel_test_run_p output] {
  28     return
  29 }
  30
  31 # I'm not sure if this is needed here. It was in options.exp.
  32 gcc_parallel_test_enable 0
  33
  34 proc check_gcc_overwrite_input {} {
  35     set filename test-[pid]
  36     set fd [open $filename.c w]
  37     puts $fd "int main (void) \{ return 0; \}"
  38     close $fd
  39     remote_download host $filename.c
  40     set test "input overwrite test"
  41     set compiler cc1
  42     set gcc_output [gcc_target_compile $filename.c $filename.c executable ""]
  43
  44     # Is this right, or do I need to use something like remote_upload?
  45     set fd [open $filename.c r]
  46     set file_data [read $fd]
  47     close $fd
  48     remote_file build delete $filename.c
  49
  50     # check if the contents of the input file has changed
  51     if {!($file_data eq "int main (void) \{ return 0; \}\n")} {
  52         fail "$test (input overwritten)"
  53         return
  54     }
  55
  56     # check if the error message was printed
  57     if {![regexp -- "same as output" $gcc_output]} {
  58         fail "$test (no error printed)"
  59         return
  60     }
  61     pass $test
  62 }
  63
  64 check_gcc_overwrite_input
  65
  66 gcc_parallel_test_enable 1