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This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
625 lines
22 KiB
Plaintext
625 lines
22 KiB
Plaintext
# This testcase is part of GDB, the GNU debugger.
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# Copyright 2001-2022 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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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@gnu.org
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# Test GDB's character set support.
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standard_testfile .c charset-malloc.c
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if { [prepare_for_testing "failed to prepare" ${testfile} [list $srcfile $srcfile2]] } {
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return -1
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}
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# Parse the output from a `show charset' command. Return the host
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# and target charset as a two-element list.
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proc parse_show_charset_output {testname} {
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global gdb_prompt
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gdb_expect {
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-re "The host character set is \"(.*)\"\\.\[\r\n\]+The target character set is \"(.*)\"\\.\[\r\n\]+The target wide character set is \"(.*)\"\\.\[\r\n\]+$gdb_prompt $" {
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set host_charset $expect_out(1,string)
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set target_charset $expect_out(2,string)
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set retlist [list $host_charset $target_charset]
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pass $testname
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}
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-re "The host character set is \"(.*)\"\\.\[\r\n\]+$gdb_prompt $" {
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set host_charset $expect_out(1,string)
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set retlist [list $host_charset]
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pass $testname
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}
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-re "The target character set is \"(.*)\"\\.\[\r\n\]+$gdb_prompt $" {
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set target_charset $expect_out(1,string)
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set retlist [list $target_charset]
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pass $testname
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}
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-re ".*$gdb_prompt $" {
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fail $testname
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}
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timeout {
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fail "$testname (timeout)"
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}
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}
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return $retlist
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}
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# Try the various `show charset' commands.
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send_gdb "show charset\n"
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set show_charset [parse_show_charset_output "show charset"]
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send_gdb "show target-charset\n"
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set show_target_charset \
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[lindex [parse_show_charset_output "show target-charset"] 0]
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if {[lsearch -exact $show_charset $show_target_charset] >= 0} {
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pass "check `show target-charset' against `show charset'"
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} else {
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fail "check `show target-charset' against `show charset'"
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}
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send_gdb "show host-charset\n"
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set show_host_charset \
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[lindex [parse_show_charset_output "show host-charset"] 0]
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if {[lsearch -exact $show_charset $show_host_charset] >= 0} {
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pass "check `show host-charset' against `show charset'"
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} else {
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fail "check `show host-charset' against `show charset'"
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}
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# Try a malformed `set charset'.
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gdb_test "set charset" \
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"Requires an argument. Valid arguments are.*" \
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"try malformed `set charset'"
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# Try using `set host-charset' on an invalid character set.
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gdb_test "set host-charset my_grandma_bonnie" \
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"Undefined item: \"my_grandma_bonnie\"." \
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"try `set host-charset' with invalid charset"
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# Try using `set target-charset' on an invalid character set.
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gdb_test "set target-charset my_grandma_bonnie" \
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"Undefined item: \"my_grandma_bonnie\"." \
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"try `set target-charset' with invalid charset"
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# A Tcl array mapping the names of all the character sets we've seen
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# to "1" if the character set can be used as a host character set, or
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# "0" otherwise. We can use `array names charsets' just to get a list
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# of all character sets.
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array set charsets {}
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proc all_charset_names {} {
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global charsets
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return [array names charsets]
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}
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proc valid_host_charset {charset} {
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global charsets
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return [expr {[info exists charsets($charset)] && $charsets($charset)}]
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}
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proc valid_target_charset {charset} {
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global charsets
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return [info exists charsets($charset)]
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}
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send_gdb "set host-charset\n"
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gdb_expect {
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-re "Requires an argument. Valid arguments are (.*)\\.\r\n$gdb_prompt $" {
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set host_charset_list $expect_out(1,string)
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regsub -all {, } $host_charset_list {,} host_charset_list
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foreach host_charset [split $host_charset_list ","] {
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set charsets($host_charset) 1
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}
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pass "capture valid host charsets"
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}
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-re ".*$gdb_prompt $" {
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fail "capture valid host charsets"
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}
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timeout {
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fail "(timeout) capture valid host charsets"
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}
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}
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# If gdb was built with a phony iconv, it will only have two character
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# sets: "auto" and the default. In this situation, this set of tests
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# is pointless.
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if {[llength [array names charsets]] < 3} {
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untested "fewer than 3 charsets"
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return -1
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}
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send_gdb "set target-charset\n"
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gdb_expect {
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-re "Requires an argument. Valid arguments are (.*)\\.\r\n$gdb_prompt $" {
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set target_charset_list $expect_out(1,string)
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regsub -all {, } $target_charset_list {,} target_charset_list
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foreach target_charset [split $target_charset_list ","] {
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if {! [info exists charsets($target_charset)]} {
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set charsets($target_charset) 0
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}
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}
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pass "capture valid target charsets"
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}
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-re ".*$gdb_prompt $" {
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fail "capture valid target charsets"
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}
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timeout {
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fail "(timeout) capture valid target charsets"
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}
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}
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# We don't want to test all the charset names here, since that would
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# be too many combinations. We we pick a subset.
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set charset_subset {ASCII ISO-8859-1 EBCDIC-US IBM1047}
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foreach_with_prefix host_charset $charset_subset {
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if {[valid_host_charset $host_charset]} {
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set testname "try `set host-charset $host_charset'"
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send_gdb "set host-charset $host_charset\n"
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gdb_expect {
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-re "GDB doesn't know of any character set named.*\[\r\n]+${gdb_prompt} $" {
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# How did it get into `charsets' then?
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fail "$testname (didn't recognize name)"
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}
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-re "GDB can't use `.*' as its host character set\\.\[\r\n]+${gdb_prompt} $" {
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# Well, then why does its `charsets' entry say it can?
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fail $testname
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}
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-re "${gdb_prompt} $" {
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pass $testname
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}
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timeout {
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fail "$testname (timeout)"
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}
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}
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# Check that the command actually had its intended effect:
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# $host_charset should now be the host character set.
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send_gdb "show charset\n"
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set result [parse_show_charset_output "parse `show charset' after `set host-charset $host_charset'"]
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if {! [string compare [lindex $result 0] $host_charset]} {
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pass "check effect of `set host-charset $host_charset'"
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} else {
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fail "check effect of `set host-charset $host_charset'"
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}
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# Now try setting every possible target character set,
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# given that host charset.
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foreach target_charset $charset_subset {
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if {![valid_target_charset $target_charset]} {
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continue
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}
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set testname "try `set target-charset $target_charset'"
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send_gdb "set target-charset $target_charset\n"
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gdb_expect {
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-re "GDB doesn't know of any character set named.*\[\r\n]+${gdb_prompt} $" {
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fail "$testname (didn't recognize name)"
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}
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-re "GDB can't convert from the .* character set to .*\\.\[\r\n\]+${gdb_prompt} $" {
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# This is a serious problem. GDB should be able to convert
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# between any arbitrary pair of character sets.
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fail "$testname (can't convert)"
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}
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-re "${gdb_prompt} $" {
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pass $testname
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}
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timeout {
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fail "$testname (timeout)"
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}
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}
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# Check that the command actually had its intended effect:
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# $target_charset should now be the target charset.
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send_gdb "show charset\n"
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set result [parse_show_charset_output "parse `show charset' after `set target-charset $target_charset'"]
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if {! [string compare $result [list $host_charset $target_charset]]} {
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pass "check effect of `set target-charset $target_charset'"
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} else {
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fail "check effect of `set target-charset $target_charset'"
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}
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# Test handling of characters in the host charset which
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# can't be translated into the target charset. \xA2 is
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# `cent' in ISO-8859-1, which has no equivalent in ASCII.
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#
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# On some systems, the pseudo-tty through which we
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# communicate with GDB insists on stripping the high bit
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# from input characters, meaning that `cent' turns into
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# `"'. Since ISO-8859-1 and ASCII are identical in the
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# lower 128 characters, it's tough to see how we can test
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# this behavior on such systems, so we just xfail it.
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#
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# Note: the \x16 (Control-V) is an escape to allow \xA2 to
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# get past readline.
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if {! [string compare $host_charset iso-8859-1] && ! [string compare $target_charset ascii]} {
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set testname "untranslatable character in character literal"
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send_gdb "print '\x16\xA2'\n"
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gdb_expect {
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-re "There is no character corresponding to .* in the target character set .*\\.\[\r\n\]+$gdb_prompt $" {
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pass $testname
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}
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-re " = 34 '\"'\[\r\n\]+$gdb_prompt $" {
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xfail "$testname (DejaGNU's pseudo-tty strips eighth bit)"
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}
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-re "$gdb_prompt $" {
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fail $testname
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}
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timeout {
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fail "$testname (timeout)"
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}
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}
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set testname "untranslatable character in string literal"
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# If the PTTY zeros bit seven, then this turns into
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# print """
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# which gets us a syntax error. We don't care.
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send_gdb "print \"\x16\xA2\"\n"
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gdb_expect {
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-re "There is no character corresponding to .* in the target character set .*\\.\[\r\n\]+$gdb_prompt $" {
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pass $testname
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}
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-re "Unterminated string in expression.\[\r\n\]+$gdb_prompt $" {
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xfail "$testname (DejaGNU's pseudo-tty strips eighth bit)"
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}
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-re "$gdb_prompt $" {
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fail $testname
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}
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timeout {
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fail "$testname (timeout)"
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}
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}
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set testname "untranslatable characters in backslash escape"
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send_gdb "print '\\\x16\xA2'\n"
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gdb_expect {
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-re "The escape sequence .* is equivalent to plain .*, which has no equivalent\[\r\n\]+in the .* character set\\.\[\r\n\]+$gdb_prompt $" {
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pass $testname
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}
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-re " = 34 '\"'\[\r\n\]+$gdb_prompt $" {
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xfail "$testname (DejaGNU's pseudo-tty strips eighth bit)"
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}
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-re "$gdb_prompt $" {
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fail $testname
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}
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timeout {
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fail "$testname (timeout)"
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}
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}
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}
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}
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}
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}
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# Set the host character set to plain ASCII, and try actually printing
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# some strings in various target character sets. We need to run the
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# test program to the point at which the strings have been
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# initialized.
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gdb_test "break ${srcfile}:[gdb_get_line_number "all strings initialized"]" \
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".*Breakpoint.* at .*" \
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"set breakpoint after all strings have been initialized"
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gdb_run_cmd
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gdb_test "" "Breakpoint.*all strings initialized.*" "run until all strings have been initialized"
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# We only try the wide character tests on machines where the wchar_t
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# typedef in the test case has the right size.
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set wchar_size [get_sizeof wchar_t 99]
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set wchar_ok 0
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if {$wchar_size == 2} {
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lappend charset_subset UTF-16
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set wchar_ok 1
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} elseif {$wchar_size == 4} {
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lappend charset_subset UTF-32
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set wchar_ok 1
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}
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gdb_test_no_output "set host-charset ASCII"
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foreach target_charset $charset_subset {
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if {![valid_target_charset $target_charset]} {
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continue
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}
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if {$target_charset == "UTF-32" || $target_charset == "UTF-16"} {
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set param target-wide-charset
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set L L
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} else {
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set param target-charset
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set L ""
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}
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gdb_test_no_output "set $param $target_charset"
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# Try printing the null character. There seems to be a bug in
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# gdb_test that requires us to use gdb_expect here.
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send_gdb "print $L'\\0'\n"
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gdb_expect {
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-re "\\\$${decimal} = 0 $L'\\\\000'\[\r\n\]+$gdb_prompt $" {
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pass "print the null character in ${target_charset}"
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}
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-re "$gdb_prompt $" {
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fail "print the null character in ${target_charset}"
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}
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timeout {
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fail "print the null character in ${target_charset} (timeout)"
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}
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}
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# Compute the name of the variable in the test program that holds
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# a string in $target_charset. The variable's name is the
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# character set's name, in lower-case, with all non-identifier
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# characters replaced with '_', with "_string" stuck on the end.
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if {$target_charset == "UTF-16"} {
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# We still use the utf_32_string variable -- but the size is
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# correct for UTF-16.
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set var_name utf_32_string
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} else {
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set var_name [string tolower "${target_charset}_string"]
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regsub -all -- "\[^a-z0-9_\]" $var_name "_" var_name
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}
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# Compute a regexp matching the results we expect. This is static,
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# but it's easier than writing it out.
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regsub -all "." "abfnrtv" "(\\\\&|x)" escapes
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set uppercase "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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set lowercase "abcdefghijklmnopqrstuvwxyz"
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set digits "0123456789"
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set octal_escape "\\\\\[0-9\]+"
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send_gdb "print $var_name\n"
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# ${escapes}${uppercase}${lowercase}${digits}${octal}${octal}
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gdb_expect {
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-re ".* = $L\"(\\\\a|x)(\\\\b|x)(\\\\f|x)(\\\\n|x)(\\\\r|x)(\\\\t|x)(\\\\v|x)${uppercase}${lowercase}${digits}(${octal_escape}|x)+\"\[\r\n\]+$gdb_prompt $" {
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pass "print string in $target_charset"
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}
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-re "$gdb_prompt $" {
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fail "print string in $target_charset"
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}
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timeout {
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fail "print string in $target_charset (timeout)"
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}
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}
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# Try entering a character literal, and see if it comes back unchanged.
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gdb_test "print $L'A'" \
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" = \[0-9-\]+ $L'A'" \
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"parse character literal in ${target_charset}"
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# Check that the character literal was encoded correctly.
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gdb_test "print /d $L'A' == $var_name\[7\]" \
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" = 1" \
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"check value of parsed character literal in ${target_charset}"
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# Try entering a string literal, and see if it comes back unchanged.
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gdb_test "print $L\"abcdefABCDEF012345\"" \
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" = $L\"abcdefABCDEF012345\"" \
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"parse string literal in ${target_charset}"
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# Check that the string literal was encoded correctly.
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gdb_test "print /d $L\"q\"\[0\] == $var_name\[49\]" \
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" = 1" \
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"check value of parsed string literal in ${target_charset}"
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# Test handling of characters in the target charset which
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# can't be translated into the host charset.
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if {! [string compare $target_charset iso-8859-1]} {
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gdb_test "print iso_8859_1_string\[69\]" \
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" = \[0-9-\]+ '\\\\242'" \
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"print character with no equivalent in host character set"
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gdb_test "print iso_8859_1_string + 70" \
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" = ${hex} \"\\\\242.*\"" \
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"print string with no equivalent in host character set"
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}
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# Make sure that we don't apply the ISO-8859-1 `print_literally'
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# function to ASCII.
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if {! [string compare $target_charset ascii]} {
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gdb_test "print iso_8859_1_string\[69\]" \
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" = \[0-9-\]+ '\\\\242'" \
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"print ASCII unprintable character"
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gdb_test "print iso_8859_1_string + 70" \
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" = ${hex} \"\\\\242.*\"" \
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"print ASCII unprintable string"
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}
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# Try printing characters with backslash escape equivalents.
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set escapees {a b f n r t v}
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for {set i 0} {$i < [llength $escapees]} {incr i} {
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set escape [lindex $escapees $i]
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send_gdb "print $var_name\[$i\]\n"
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set have_escape 1
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gdb_expect {
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-re "= \[0-9-\]+ $L'\\\\${escape}'\[\r\n\]+$gdb_prompt $" {
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pass "try printing '\\${escape}' in ${target_charset}"
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}
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-re "= \[0-9-\]+ 'x'\[\r\n\]+$gdb_prompt $" {
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xfail "try printing '\\${escape}' in ${target_charset} (no such escape)"
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set have_escape 0
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}
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-re "$gdb_prompt $" {
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fail "try printing '\\${escape}' in ${target_charset}"
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}
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timeout {
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fail "try printing '\\${escape}' in ${target_charset} (timeout)"
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}
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}
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if {$have_escape} {
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# Try parsing a backslash escape in a character literal.
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gdb_test "print /d $L'\\${escape}' == $var_name\[$i\]" \
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" = 1" \
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"check value of '\\${escape}' in ${target_charset}"
|
|
|
|
# Try parsing a backslash escape in a string literal.
|
|
gdb_test "print /d $L\"\\${escape}\"\[0\] == $var_name\[$i\]" \
|
|
" = 1" \
|
|
"check value of \"\\${escape}\" in ${target_charset}"
|
|
}
|
|
}
|
|
|
|
# Try printing a character escape that doesn't exist. We should
|
|
# get the unescaped character, in the target character set.
|
|
gdb_test "print $L'\\q'" " = \[0-9-\]+ $L'q'" \
|
|
"print escape that doesn't exist in $target_charset"
|
|
gdb_test "print /d $L'\\q' == $var_name\[49\]" " = 1" \
|
|
"check value of escape that doesn't exist in $target_charset"
|
|
}
|
|
|
|
# Reset the target charset.
|
|
gdb_test_no_output "set target-charset UTF-8"
|
|
|
|
# \242 is not a valid UTF-8 character.
|
|
gdb_test "print \"\\242\"" " = \"\\\\242\"" \
|
|
"non-representable target character"
|
|
|
|
gdb_test "print '\\x'" "\\\\x escape without a following hex digit."
|
|
gdb_test "print '\\u'" "\\\\u escape without a following hex digit."
|
|
gdb_test "print '\\9'" " = \[0-9\]+ '9'"
|
|
|
|
# An octal escape can only be 3 digits.
|
|
gdb_test "print \"\\1011\"" " = \"A1\""
|
|
|
|
# Tests for wide- or unicode- strings. L is the prefix letter to use,
|
|
# either "L" (for wide strings), "u" (for UTF-16), or "U" (for UTF-32).
|
|
# NAME is used in the test names and should be related to the prefix
|
|
# letter in some easy-to-undestand way.
|
|
proc test_wide_or_unicode {L name} {
|
|
gdb_test "print $L\"ab\" $L\"c\"" " = $L\"abc\"" \
|
|
"basic $name string concatenation"
|
|
gdb_test "print $L\"ab\" \"c\"" " = $L\"abc\"" \
|
|
"narrow and $name string concatenation"
|
|
gdb_test "print \"ab\" $L\"c\"" " = $L\"abc\"" \
|
|
"$name and narrow string concatenation"
|
|
gdb_test "print $L\"\\xe\" $L\"c\"" " = $L\"\\\\016c\"" \
|
|
"$name string concatenation with escape"
|
|
gdb_test "print $L\"\" \"abcdef\" \"g\"" \
|
|
"$L\"abcdefg\"" \
|
|
"concatenate three strings with empty $name string"
|
|
|
|
gdb_test "print $L'a'" "= \[0-9\]+ $L'a'" \
|
|
"basic $name character"
|
|
}
|
|
|
|
if {$wchar_ok} {
|
|
test_wide_or_unicode L wide
|
|
}
|
|
|
|
set ucs2_ok [expr {[get_sizeof char16_t 99] == 2}]
|
|
|
|
if ![valid_host_charset "UTF-16"] {
|
|
verbose -log "Disabling UTF-16 tests."
|
|
set ucs2_ok 0
|
|
}
|
|
|
|
if {$ucs2_ok} {
|
|
test_wide_or_unicode u UTF-16
|
|
}
|
|
|
|
set ucs4_ok [expr {[get_sizeof char32_t 99] == 4}]
|
|
if {$ucs4_ok} {
|
|
test_wide_or_unicode U UTF-32
|
|
}
|
|
|
|
# Test an invalid string combination.
|
|
proc test_combination {L1 name1 L2 name2} {
|
|
gdb_test "print $L1\"abc\" $L2\"def\"" \
|
|
"Undefined string concatenation." \
|
|
"undefined concatenation of $name1 and $name2"
|
|
}
|
|
|
|
if {$wchar_ok && $ucs2_ok} {
|
|
test_combination L wide u UTF-16
|
|
}
|
|
if {$wchar_ok && $ucs4_ok} {
|
|
test_combination L wide U UTF-32
|
|
# Regression test for a typedef to a typedef.
|
|
gdb_test "print myvar" "= \[0-9\]+ L'A'" \
|
|
"typedef to wchar_t"
|
|
}
|
|
if {$ucs2_ok && $ucs4_ok} {
|
|
test_combination u UTF-16 U UTF-32
|
|
}
|
|
|
|
if {$ucs2_ok} {
|
|
set go 1
|
|
gdb_test_multiple "python print ('hello, world!')" \
|
|
"verify python support for charset tests" {
|
|
-re "not supported.*$gdb_prompt $" {
|
|
unsupported "python support is disabled"
|
|
set go 0
|
|
}
|
|
-re "$gdb_prompt $" {}
|
|
}
|
|
|
|
if {$go} {
|
|
gdb_test "print u\"abcdef\"" " = u\"abcdef\"" \
|
|
"set up for python printing of utf-16 string"
|
|
|
|
gdb_test "python print (gdb.history(0).string())" "abcdef" \
|
|
"extract utf-16 string using python"
|
|
}
|
|
}
|
|
|
|
# Regression test for a cleanup bug in the charset code.
|
|
gdb_test "print /d 'a' == 'a' || 'b' == 'b'" \
|
|
".* = 1" \
|
|
"EVAL_SKIP cleanup handling regression test"
|
|
|
|
|
|
proc string_display { var_name set_prefix x_size x_type} {
|
|
with_test_prefix "set_prefix=$set_prefix" {
|
|
gdb_test_no_output "set ${var_name} = ${set_prefix}\"Test String\\0with zeroes\""\
|
|
"assign ${var_name} with prefix ${set_prefix}"
|
|
gdb_test "x /2${x_size}s ${var_name}" ".*\t${x_type}\"Test String\"\[\r\n\]+.*\t${x_type}\"with zeroes\"" \
|
|
"display String ${var_name} with x/${x_size}s"
|
|
}
|
|
}
|
|
|
|
if {$ucs2_ok} {
|
|
string_display String16 u h u
|
|
if {$wchar_size == 2} {
|
|
string_display String16 L h u
|
|
}
|
|
}
|
|
|
|
string_display String32 U w U
|
|
if {$wchar_size == 4} {
|
|
string_display String32 L w U
|
|
}
|
|
|
|
|
|
foreach name {short int long} {
|
|
# We're really just checking to make sure this doesn't give an
|
|
# error.
|
|
gdb_test "print ${name}_array = \"hi\"" \
|
|
" = {.*}" \
|
|
"assign string to $name array"
|
|
}
|
|
|
|
|
|
gdb_exit
|