gdb/testsuite/gdb.base/args.exp

   1 # Copyright 2003-2022 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 # Skip test if target does not support argument passing.
  19 if [target_info exists noargs] {
  20     return
  21 }
  22
  23 # This test requires starting new inferior processes, skip it if the target
  24 # board is a stub.
  25 if [use_gdb_stub] {
  26     return
  27 }
  28
  29 standard_testfile
  30
  31 if {[build_executable $testfile.exp $testfile \
  32          $srcfile {debug nowarnings}] == -1} {
  33     untested "failed to compile"
  34     return -1
  35 }
  36
  37 # If SINGLE_QUOTES_NEWLINE_KFAIL true, arguments made of exactly '' or a
  38 # newline character will fail, so kfail those tests.
  39
  40 proc args_test { name arglist {single_quotes_newline_kfail false}} {
  41     global srcdir
  42     global subdir
  43     global testfile
  44     global hex
  45     global decimal
  46
  47     clean_restart $testfile
  48
  49     runto_main
  50     gdb_breakpoint [gdb_get_line_number "set breakpoint here"]
  51     gdb_continue_to_breakpoint "breakpoint for $name"
  52
  53     set expected_len [expr 1 + [llength $arglist]]
  54     gdb_test "print argc" "\\\$$decimal = $expected_len" "argc for $name"
  55
  56     set i 1
  57     foreach arg $arglist {
  58         if { $single_quotes_newline_kfail
  59              && ($arg == {''} || $arg == {\\n}) } {
  60             setup_kfail "gdb/27989" "*-*-*"
  61         }
  62         gdb_test "print argv\[$i\]" "\\\$$decimal = $hex \"$arg\"" \
  63             "argv\[$i\] for $name"
  64         set i [expr $i + 1]
  65     }
  66 }
  67
  68 #
  69 # Test that the --args are processed correctly.
  70 #
  71
  72 save_vars { GDBFLAGS } {
  73     set old_gdbflags $GDBFLAGS
  74
  75     # Single quotes and newlines are not well handled by the extended-remote
  76     # target:  https://sourceware.org/bugzilla/show_bug.cgi?id=27989
  77     set single_quotes_newline_kfail \
  78         [expr { [target_info exists gdb_protocol] \
  79                 && [target_info gdb_protocol] == "extended-remote" }]
  80
  81     set GDBFLAGS "$old_gdbflags --args $binfile 1 3"
  82     args_test basic {{1} {3}}
  83
  84     #
  85     # Test that the --args are processed correctly even if one of them is empty.
  86     # The syntax needed is a little peculiar; DejaGNU treats the arguments as a
  87     # list and expands them itself, since no shell redirection is involved.
  88     #
  89     set GDBFLAGS "$old_gdbflags --args $binfile 1 {} 3"
  90     args_test "one empty" {{1} {} {3}}
  91
  92     #
  93     # try with 2 empty args
  94     #
  95     set GDBFLAGS "$old_gdbflags --args $binfile 1 {} {} 3"
  96     args_test "two empty" {{1} {} {} 3}
  97
  98     # Try with arguments containing literal single quotes.
  99
 100     set GDBFLAGS "$old_gdbflags --args $binfile 1 '' 3"
 101     args_test "one empty with single quotes" {{1} {''} {3}} $single_quotes_newline_kfail
 102
 103     set GDBFLAGS "$old_gdbflags --args $binfile 1 '' '' 3"
 104     args_test "two empty with single quotes" {{1} {''} {''} {3}} $single_quotes_newline_kfail
 105
 106     # try with arguments containing literal newlines.
 107
 108     set GDBFLAGS "$old_gdbflags --args $binfile 1 {\n} 3"
 109     args_test "one newline" {{1} {\\n} {3}} $single_quotes_newline_kfail
 110
 111     set GDBFLAGS "$old_gdbflags --args $binfile 1 {\n} {\n} 3"
 112     args_test "two newlines" {{1} {\\n} {\\n} {3}} $single_quotes_newline_kfail
 113 }