# Copyright 2003-2021 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # This is a test for the gdb invocation option --args. # Skip test if target does not support argument passing. if [target_info exists noargs] { return } # This test requires starting new inferior processes, skip it if the target # board is a stub. if [use_gdb_stub] { return } standard_testfile if {[build_executable $testfile.exp $testfile \ $srcfile {debug nowarnings}] == -1} { untested "failed to compile" return -1 } # If SINGLE_QUOTES_NEWLINE_KFAIL true, arguments made of exactly '' or a # newline character will fail, so kfail those tests. proc args_test { name arglist {single_quotes_newline_kfail false}} { global srcdir global subdir global testfile global hex global decimal clean_restart $testfile runto_main gdb_breakpoint [gdb_get_line_number "set breakpoint here"] gdb_continue_to_breakpoint "breakpoint for $name" set expected_len [expr 1 + [llength $arglist]] gdb_test "print argc" "\\\$$decimal = $expected_len" "argc for $name" set i 1 foreach arg $arglist { if { $single_quotes_newline_kfail && ($arg == {''} || $arg == {\\n}) } { setup_kfail "gdb/27989" "*-*-*" } gdb_test "print argv\[$i\]" "\\\$$decimal = $hex \"$arg\"" \ "argv\[$i\] for $name" set i [expr $i + 1] } } # # Test that the --args are processed correctly. # save_vars { GDBFLAGS } { set old_gdbflags $GDBFLAGS # Single quotes and newlines are not well handled by the extended-remote # target: https://sourceware.org/bugzilla/show_bug.cgi?id=27989 set single_quotes_newline_kfail \ [expr { [target_info exists gdb_protocol] \ && [target_info gdb_protocol] == "extended-remote" }] set GDBFLAGS "$old_gdbflags --args $binfile 1 3" args_test basic {{1} {3}} # # Test that the --args are processed correctly even if one of them is empty. # The syntax needed is a little peculiar; DejaGNU treats the arguments as a # list and expands them itself, since no shell redirection is involved. # set GDBFLAGS "$old_gdbflags --args $binfile 1 {} 3" args_test "one empty" {{1} {} {3}} # # try with 2 empty args # set GDBFLAGS "$old_gdbflags --args $binfile 1 {} {} 3" args_test "two empty" {{1} {} {} 3} # Try with arguments containing literal single quotes. set GDBFLAGS "$old_gdbflags --args $binfile 1 '' 3" args_test "one empty with single quotes" {{1} {''} {3}} $single_quotes_newline_kfail set GDBFLAGS "$old_gdbflags --args $binfile 1 '' '' 3" args_test "two empty with single quotes" {{1} {''} {''} {3}} $single_quotes_newline_kfail # try with arguments containing literal newlines. set GDBFLAGS "$old_gdbflags --args $binfile 1 {\n} 3" args_test "one newline" {{1} {\\n} {3}} $single_quotes_newline_kfail set GDBFLAGS "$old_gdbflags --args $binfile 1 {\n} {\n} 3" args_test "two newlines" {{1} {\\n} {\\n} {3}} $single_quotes_newline_kfail }