gdb/testsuite/gdb.base/args.exp

   1 # Copyright 2003, 2007, 2008 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 if $tracelevel then {
  19     strace $tracelevel
  20 }
  21
  22
  23 global GDBFLAGS
  24
  25 # Skip test if target does not support argument passing.
  26 if [target_info exists noargs] {
  27     return;
  28 }
  29
  30 set testfile "args"
  31 set srcfile ${testfile}.c
  32 set binfile ${objdir}/${subdir}/${testfile}
  33
  34 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
  35     untested args.exp
  36     return -1
  37 }
  38
  39 proc args_test { name arglist } {
  40     global srcdir
  41     global subdir
  42     global binfile
  43     global hex
  44     global decimal
  45
  46     gdb_exit
  47     gdb_start
  48     gdb_reinitialize_dir $srcdir/$subdir
  49
  50     # No loading needs to be done when the target is `exec'.  Some targets
  51     # require that the program be loaded, however, and it doesn't hurt
  52     # for `exec'.
  53     gdb_load $binfile
  54
  55     runto_main
  56     gdb_breakpoint [gdb_get_line_number "set breakpoint here"]
  57     gdb_continue_to_breakpoint "breakpoint for $name"
  58
  59     set expected_len [expr 1 + [llength $arglist]]
  60     gdb_test "print argc" "\\\$$decimal = $expected_len" "argc for $name"
  61
  62     set i 1
  63     foreach arg $arglist {
  64         gdb_test "print argv\[$i\]" "\\\$$decimal = $hex \"$arg\"" \
  65             "argv\[$i\] for $name"
  66         set i [expr $i + 1]
  67     }
  68 }
  69
  70 #
  71 # Test that the --args are processed correctly.
  72 #
  73 set old_gdbflags $GDBFLAGS
  74 set GDBFLAGS "-nx --args $binfile 1 3"
  75 args_test basic {{1} {3}}
  76
  77 #
  78 # Test that the --args are processed correctly even if one of them is empty.
  79 # The syntax needed is a little peculiar; DejaGNU treats the arguments as a
  80 # list and expands them itself, since no shell redirection is involved.
  81 #
  82 set GDBFLAGS "-nx --args $binfile 1 {} 3"
  83 args_test "one empty" {{1} {} {3}}
  84
  85 #
  86 # try with 2 empty args
  87 #
  88 set GDBFLAGS "-nx --args $binfile 1 {} {} 3"
  89 args_test "two empty" {{1} {} {} 3}
  90
  91 # Try with arguments containing literal single quotes.
  92
  93 set GDBFLAGS "-nx --args $binfile 1 '' 3"
  94 args_test "one empty (with single quotes)" {{1} {''} {3}}
  95
  96 set GDBFLAGS "-nx --args $binfile 1 '' '' 3"
  97 args_test "two empty (with single quotes)" {{1} {''} {''} {3}}
  98
  99 set GDBFLAGS $old_gdbflags