gdb/testsuite/gdb.base/args.exp

   1 # Copyright 2003-2016 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 is a test for the gdb invocation option --args.
  17
  18
  19 global GDBFLAGS
  20
  21 # Skip test if target does not support argument passing.
  22 if [target_info exists noargs] {
  23     return
  24 }
  25
  26 standard_testfile
  27
  28 if {[build_executable $testfile.exp $testfile \
  29          $srcfile {debug nowarnings}] == -1} {
  30     untested "failed to compile"
  31     return -1
  32 }
  33
  34 proc args_test { name arglist } {
  35     global srcdir
  36     global subdir
  37     global testfile
  38     global hex
  39     global decimal
  40
  41     clean_restart $testfile
  42
  43     runto_main
  44     gdb_breakpoint [gdb_get_line_number "set breakpoint here"]
  45     gdb_continue_to_breakpoint "breakpoint for $name"
  46
  47     set expected_len [expr 1 + [llength $arglist]]
  48     gdb_test "print argc" "\\\$$decimal = $expected_len" "argc for $name"
  49
  50     set i 1
  51     foreach arg $arglist {
  52         gdb_test "print argv\[$i\]" "\\\$$decimal = $hex \"$arg\"" \
  53             "argv\[$i\] for $name"
  54         set i [expr $i + 1]
  55     }
  56 }
  57
  58 #
  59 # Test that the --args are processed correctly.
  60 #
  61 set old_gdbflags $GDBFLAGS
  62
  63 set GDBFLAGS "$old_gdbflags --args $binfile 1 3"
  64 args_test basic {{1} {3}}
  65
  66 #
  67 # Test that the --args are processed correctly even if one of them is empty.
  68 # The syntax needed is a little peculiar; DejaGNU treats the arguments as a
  69 # list and expands them itself, since no shell redirection is involved.
  70 #
  71 set GDBFLAGS "$old_gdbflags --args $binfile 1 {} 3"
  72 args_test "one empty" {{1} {} {3}}
  73
  74 #
  75 # try with 2 empty args
  76 #
  77 set GDBFLAGS "$old_gdbflags --args $binfile 1 {} {} 3"
  78 args_test "two empty" {{1} {} {} 3}
  79
  80 # Try with arguments containing literal single quotes.
  81
  82 set GDBFLAGS "$old_gdbflags --args $binfile 1 '' 3"
  83 args_test "one empty (with single quotes)" {{1} {''} {3}}
  84
  85 set GDBFLAGS "$old_gdbflags --args $binfile 1 '' '' 3"
  86 args_test "two empty (with single quotes)" {{1} {''} {''} {3}}
  87
  88 # try with arguments containing literal newlines.
  89
  90 set GDBFLAGS "-nx --args $binfile 1 {\n} 3"
  91 args_test "one newline" {{1} {\\n} {3}}
  92
  93 set GDBFLAGS "-nx --args $binfile 1 {\n} {\n} 3"
  94 args_test "two newlines" {{1} {\\n} {\\n} {3}}
  95
  96 set GDBFLAGS $old_gdbflags