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403 lines
12 KiB
Plaintext
403 lines
12 KiB
Plaintext
# Copyright (C) 1998-2018 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# written by Elena Zannoni (ezannoni@cygnus.com)
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# modified by Michael Chastain (chastain@redhat.com)
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# This file is part of the gdb testsuite
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#
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# tests for overloaded member functions. Set breakpoints on
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# overloaded member functions
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#
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global timeout
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set timeout 15
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#
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# test running programs
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#
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if { [skip_cplus_tests] } { continue }
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standard_testfile .cc
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if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug c++}]} {
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return -1
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}
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# set it up at a breakpoint so we can play with the variable values
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#
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if {![runto_main]} {
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perror "couldn't run to breakpoint"
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continue
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}
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# When I ask gdb to set a breakpoint on an overloaded function,
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# gdb gives me a choice menu. I might get stuck in that choice menu
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# (for example, if C++ name mangling is not working properly).
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#
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# This procedure issues a command that works at either the menu
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# prompt or the command prompt to get back to the command prompt.
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#
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# Note that an empty line won't do it (it means 'repeat the previous command'
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# at top level). A line with a single space in it works nicely.
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proc take_gdb_out_of_choice_menu {} {
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global gdb_prompt
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gdb_test_multiple " " " " {
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-re ".*$gdb_prompt $" {
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}
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timeout {
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perror "could not resynchronize to command prompt (timeout)"
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continue
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}
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}
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}
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# This procedure sets an overloaded breakpoint.
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# When I ask for such a breakpoint, gdb gives me a menu of 'cancel' 'all'
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# and a bunch of choices. I then choose from that menu by number.
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proc set_bp_overloaded {name expectedmenu mychoice bpnumber linenumber} {
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global gdb_prompt hex srcfile
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# Get into the overload menu.
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send_gdb "break $name\n"
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gdb_expect {
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-re "$expectedmenu" {
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pass "bp menu for $name choice $mychoice"
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# Choose my choice.
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send_gdb "$mychoice\n"
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gdb_expect {
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-re "Breakpoint $bpnumber at $hex: file.*$srcfile, line $linenumber.\r\n$gdb_prompt $" {
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pass "set bp $bpnumber on $name $mychoice line $linenumber"
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}
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-re ".*$gdb_prompt $" {
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fail "set bp $bpnumber on $name $mychoice line $linenumber (bad bp)"
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}
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timeout {
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fail "set bp $bpnumber on $name $mychoice line $linenumber (timeout)"
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take_gdb_out_of_choice_menu
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}
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}
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}
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-re ".*\r\n> " {
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fail "bp menu for $name choice $mychoice (bad menu)"
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take_gdb_out_of_choice_menu
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}
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-re ".*$gdb_prompt $" {
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fail "bp menu for $name choice $mychoice (no menu)"
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}
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timeout {
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fail "bp menu for $name choice $mychoice (timeout)"
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take_gdb_out_of_choice_menu
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}
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}
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}
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# Compute the expected menu for overload1arg.
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# Note the arg type variations for void and integer types.
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# This accommodates different versions of g++.
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# Probe for the real types. This will do some unnecessary checking
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# for some simple types (like "int"), but it's just easier to loop
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# over all_types instead of calling out just the exceptions.
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# This list /must/ remain in the same order that the methods are
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# called in the source code. Otherwise the order in which breakpoints
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# are hit (tested below) will be incorrect.
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set all_types [list void char signed_char unsigned_char short_int \
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unsigned_short_int int unsigned_int long_int \
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unsigned_long_int float double]
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# ARGUMENTS is an array that will map from synthetic type to argument
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# expressions in the source code, which is of the form "arg = $decimal".
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# ARGUMENTS stores this decimal number.
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array set arguments {
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void ""
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char 2
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signed_char 3
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unsigned_char 4
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short_int 5
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unsigned_short_int 6
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int 7
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unsigned_int 8
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long_int 9
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unsigned_long_int 10
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float 100(.0)?
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double 200(.0)?
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}
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unset -nocomplain line types
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foreach type $all_types {
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# TYPES is an array that maps the synthetic names in ALL_TYPES
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# to the real type used in the debugger. These will be checked
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# below and changed if the debugger thinks they are different from
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# their default values.
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set types($type) [join [split $type "_"] " "]
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# LINE is an array that will map from synthetic type to line number.
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# in the source code.
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set line($type) [gdb_get_line_number "fo1 $type"]
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# Probe for the actual type.
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gdb_test_multiple "print &foo::overload1arg($types($type))" \
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"probe $types($type)" {
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-re ".*\<foo::.*\>.*$gdb_prompt $" {
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regexp {<.*>} $expect_out(0,string) func
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regexp {\(.*\)} $func real_type
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# Store the real type into TYPES.
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set types($type) [string trim $real_type {()}]
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# Create an inverse mapping of the actual type to
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# the synthetic type.
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set type_map("$types($type)") $type
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pass "detect $type"
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}
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}
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}
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# This is a list of the actual overloaded method arguments.
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set overloads {}
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foreach type $all_types {
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lappend overloads $types($type)
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}
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# Sort this list alphabetically.
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set overloads [lsort $overloads]
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# Create the menu list.
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set items {"cancel" "all"}
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foreach ovld $overloads {
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lappend items "$srcfile:foo::overload1arg\\($ovld\\)"
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}
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set menu_items {}
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set idx 0
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foreach item $items {
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lappend menu_items ".$idx. .*$item"
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incr idx
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}
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set menu_overload1arg [join $menu_items {[\r\n]*}]
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append menu_overload1arg {[\r\n]*> $}
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# Set multiple-symbols to "ask", to allow us to test the use
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# of the multiple-choice menu when breaking on an overloaded method.
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gdb_test_no_output "set multiple-symbols ask"
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# Set breakpoints on foo::overload1arg, one by one.
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set bpnum 1
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set method "foo::overload1arg"
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for {set idx 0} {$idx < [llength $overloads]} {incr idx} {
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set type [lindex $overloads $idx]
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set_bp_overloaded $method $menu_overload1arg \
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[expr {$idx + 2}] [incr bpnum] $line($type_map("$type"))
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}
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# Verify the breakpoints.
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set bptable "Num Type\[\t \]+Disp Enb Address\[\t \]+What.*"
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append bptable "\[0-9\]+\[\t \]+breakpoint keep y\[\t \]+$hex\[\t \]+in main(\\((|void)\\))? at.*$srcfile:49\[\r\n\]+"
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append bptable "\[\t \]+breakpoint already hit 1 time\[\r\n\]+"
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foreach ovld $overloads {
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append bptable [format "\[0-9\]+\[\t \]+breakpoint keep y\[\t \]+$hex\[\t \]+in foo::overload1arg\\(%s\\) at.*$srcfile:%d\[\r\n\]+" $ovld \
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$line($type_map("$ovld"))]
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}
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gdb_test "info break" $bptable "breakpoint info (after setting one-by-one)"
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# Test choice "cancel".
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# This is copy-and-paste from set_bp_overloaded.
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send_gdb "break foo::overload1arg\n"
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gdb_expect {
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-re "$menu_overload1arg" {
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pass "bp menu for foo::overload1arg choice cancel"
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# Choose cancel.
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send_gdb "0\n"
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gdb_expect {
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-re "canceled\r\n$gdb_prompt $" {
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pass "set bp on overload1arg canceled"
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}
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-re "cancelled\r\n$gdb_prompt $" {
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pass "set bp on overload1arg canceled"
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}
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-re ".*$gdb_prompt $" {
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fail "set bp on overload1arg canceled (bad message)"
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}
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timeout {
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fail "set bp on overload1arg canceled (timeout)"
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take_gdb_out_of_choice_menu
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}
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}
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}
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-re ".*\r\n> " {
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fail "bp menu for foo::overload1arg choice cancel (bad menu)"
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take_gdb_out_of_choice_menu
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}
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-re ".*$gdb_prompt $" {
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fail "bp menu for foo::overload1arg choice cancel (no menu)"
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}
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timeout {
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fail "bp menu for foo::overload1arg choice cancel (timeout)"
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take_gdb_out_of_choice_menu
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}
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}
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gdb_test "info break" $bptable "breakpoint info (after cancel)"
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# Delete these breakpoints.
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send_gdb "delete breakpoints\n"
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gdb_expect {
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-re "Delete all breakpoints.* $" {
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send_gdb "y\n"
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gdb_expect {
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-re ".*$gdb_prompt $" {
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pass "delete all breakpoints"
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}
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timeout {
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fail "delete all breakpoints (timeout)"
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}
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}
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}
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timeout {
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fail "delete all breakpoints (timeout)"
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}
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}
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gdb_test "info breakpoints" "No breakpoints or watchpoints." "breakpoint info (after delete)"
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# Test choice "all".
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# This is copy-and-paste from set_bp_overloaded.
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send_gdb "break foo::overload1arg\n"
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gdb_expect {
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-re "$menu_overload1arg" {
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pass "bp menu for foo::overload1arg choice all"
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# Choose all.
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send_gdb "1\n"
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gdb_expect {
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-re "Breakpoint $decimal at $hex: foo::overload1arg. .12 locations.\r\n.*$gdb_prompt $" {
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pass "set bp on overload1arg all"
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}
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-re ".*$gdb_prompt $" {
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fail "set bp on overload1arg all (bad message)"
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}
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timeout {
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fail "set bp on overload1arg all (timeout)"
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take_gdb_out_of_choice_menu
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}
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}
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}
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-re ".*\r\n> " {
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fail "bp menu for foo::overload1arg choice all (bad menu)"
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take_gdb_out_of_choice_menu
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}
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-re ".*$gdb_prompt $" {
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fail "bp menu for foo::overload1arg choice all (no menu)"
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}
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timeout {
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fail "bp menu for foo::overload1arg choice all (timeout)"
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take_gdb_out_of_choice_menu
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}
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}
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# Create the breakpoint table for "info breakpoint".
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set bptable "Num Type\[\t \]+Disp Enb Address\[\t \]+What.*\[\r\n]+"
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append bptable "\[0-9\]+\[\t \]+breakpoint\[\t \]+keep\[\t \]y\[\t \]+<MULTIPLE>.*\[\r\n\]+"
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foreach ovld {void char signed_char unsigned_char short_int \
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unsigned_short_int int unsigned_int long_int \
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unsigned_long_int float double} {
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append bptable [format "\[0-9\]+.\[0-9\]+\[\t \]+y\[\t \]+$hex\[\t \]+in foo::overload1arg\\(%s\\) at.*$srcfile:%d\[\r\n\]+" \
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$types($ovld) $line($ovld)]
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}
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gdb_test "info break" $bptable "breakpoint info (after setting on all)"
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# Run through each breakpoint.
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proc continue_to_bp_overloaded {bpnumber might_fail line argtype argument} {
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global gdb_prompt hex decimal srcfile
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if {$argument == ""} {
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set actuals ""
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} else {
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set actuals "arg=$argument"
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if {[regexp {char} $argtype]} {
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append actuals " \\'\\\\00$argument\\'"
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}
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}
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if {[string match $argtype "void"]} {
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set body "return $decimal;"
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} else {
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set body "arg = 0; return $decimal;"
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}
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gdb_test_multiple "continue" "continue to bp overloaded : $argtype" {
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-re "Continuing.\r\n\r\nBreakpoint $bpnumber, foo::overload1arg \\(this=${hex}(, )?$actuals\\) at .*$srcfile:$line\r\n$decimal\[\t \]+{ $body }.*$gdb_prompt $" {
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pass "continue to bp overloaded : $argtype"
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}
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-re "Continuing.\r\n\r\nBreakpoint $bpnumber, foo::overload1arg \\(this=${hex}, arg=.*\\) at .*$srcfile:$line\r\n$decimal\[\t \]+{ $body }.*$gdb_prompt $" {
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if $might_kfail {
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kfail "c++/8130" "continue to bp overloaded : $argtype"
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} else {
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fail "continue to bp overloaded : $argtype"
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}
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}
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}
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}
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# An array which describes which of these methods might be expected
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# to kfail on GCC 2.95. See C++/8210.
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array set might_fail {
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void 0
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char 1
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signed_char 1
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unsigned_char 1
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short_int 1
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unsigned_short_int 1
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int 0
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unsigned_int 0
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long_int 0
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unsigned_long_int 0
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float 0
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double 1
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}
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foreach type $all_types {
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continue_to_bp_overloaded 14 $might_fail($type) $line($type) \
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$type $arguments($type)
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}
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# Test breaking on an overloaded function when multiple-symbols
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# is set to "cancel"
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gdb_test_no_output "set multiple-symbols cancel"
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gdb_test "break foo::foofunc" \
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"canceled.*"
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# Test breaking on an overloaded function when multiple-symbols
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# is set to "all"
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gdb_test_no_output "set multiple-symbols all"
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gdb_test "break foo::foofunc" \
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"Breakpoint \[0-9\]+ at ${hex}: foo::foofunc. .2 locations..*"
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# That's all, folks.
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unset -nocomplain line types
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gdb_continue_to_end "finish program"
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