# This testcase is part of GDB, the GNU debugger.
-# Copyright 2001, 2004 Free Software Foundation, Inc.
+# Copyright 2001-2019 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 2 of the License, or
+# 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, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@gnu.org
# Test GDB's character set support.
-if $tracelevel then {
- strace $tracelevel
-}
-set prms_id 0
-set bug_id 0
+standard_testfile .c charset-malloc.c
-set testfile "charset"
-set srcfile ${testfile}.c
-set binfile ${objdir}/${subdir}/${testfile}
-if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
- untested "couldn't compile ${srcdir}/${subdir}/${srcfile}"
+if { [prepare_for_testing "failed to prepare" ${testfile} [list $srcfile $srcfile2]] } {
return -1
}
-# Start with a fresh gdb.
-gdb_exit
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
-
# Parse the output from a `show charset' command. Return the host
# and target charset as a two-element list.
proc parse_show_charset_output {testname} {
global gdb_prompt
gdb_expect {
- -re "The current host and target character set is `(.*)'\\.\[\r\n\]+$gdb_prompt $" {
- set host_charset $expect_out(1,string)
- set target_charset $expect_out(1,string)
- set retlist [list $host_charset $target_charset]
- pass $testname
- }
- -re "The current host character set is `(.*)'\\.\[\r\n\]+The current target character set is `(.*)'\\.\[\r\n\]+$gdb_prompt $" {
+ -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 $" {
set host_charset $expect_out(1,string)
set target_charset $expect_out(2,string)
set retlist [list $host_charset $target_charset]
}
-# Try the various `show charset' commands. These are all aliases of each
-# other; `show target-charset' and `show host-charset' actually print
-# both the host and target charsets.
+# Try the various `show charset' commands.
send_gdb "show charset\n"
set show_charset [parse_show_charset_output "show charset"]
send_gdb "show target-charset\n"
-set show_target_charset [parse_show_charset_output "show target-charset"]
+set show_target_charset \
+ [lindex [parse_show_charset_output "show target-charset"] 0]
-if {[lsearch $show_charset $show_target_charset] >= 0} {
+if {[lsearch -exact $show_charset $show_target_charset] >= 0} {
pass "check `show target-charset' against `show charset'"
} else {
fail "check `show target-charset' against `show charset'"
}
send_gdb "show host-charset\n"
-set show_host_charset [parse_show_charset_output "show host-charset"]
+set show_host_charset \
+ [lindex [parse_show_charset_output "show host-charset"] 0]
-if {[lsearch $show_charset $show_host_charset] >= 0} {
+if {[lsearch -exact $show_charset $show_host_charset] >= 0} {
pass "check `show host-charset' against `show charset'"
} else {
fail "check `show host-charset' against `show charset'"
}
-
-# Get the list of supported (host) charsets as possible completions.
-send_gdb "set charset \t\t"
-
-# Check that we can at least use ASCII as a host character set.
-sleep 1
-gdb_expect {
- -re "^set charset .*\r\nASCII.*\r\n$gdb_prompt set charset " {
- # We got the output that we wanted, including ASCII as possible
- # charset. Send a newline to get us back to the prompt. This will
- # also generate an error message. Let's not check here that the error
- # message makes sense, we do that below, as a separate testcase.
- send_gdb "\n"
- gdb_expect {
- -re ".*Requires an argument.*$gdb_prompt $" {
- pass "get valid character sets"
- }
- -re ".*$gdb_prompt $" {
- send_gdb "\n"
- gdb_expect {
- -re ".*$gdb_prompt $" {
- fail "get valid character sets"
- }
- }
- }
- timeout {
- fail "(timeout) get valid character sets"
- }
- }
- }
- -re ".*$gdb_prompt $" {
- # We got some output that ended with a regular prompt
- fail "get valid character sets"
- }
- -re ".*$gdb_prompt set charset.*$" {
- # We got some other output, send a cntrl-c to gdb to get us back
- # to the prompt.
- send_gdb "\003"
- fail "get valid character sets"
- }
- timeout {
- fail "get valid character sets (timeout)"
- }
-}
-
# Try a malformed `set charset'.
gdb_test "set charset" \
"Requires an argument. Valid arguments are.*" \
proc valid_host_charset {charset} {
global charsets
- return $charsets($charset)
+ return [expr {[info exists charsets($charset)] && $charsets($charset)}]
+}
+
+proc valid_target_charset {charset} {
+ global charsets
+ return [info exists charsets($charset)]
}
send_gdb "set host-charset\n"
gdb_expect {
- -re "Requires an argument. Valid arguments are (\[^ \t\n\r,.\]*)" {
- #set host_charset_list $expect_out(1,string)
- set charsets($expect_out(1,string)) 1
- exp_continue
- #pass "capture valid host charsets"
- }
-
- -re ", (\[^ \t\n\r,.\]*)" {
- #set host_charset_list $expect_out(1,string)
- set charsets($expect_out(1,string)) 1
- exp_continue
- #pass "capture valid host charsets"
- }
-
- -re "\\.\r\n$gdb_prompt $" {
- #set host_charset_list $expect_out(1,string)
+ -re "Requires an argument. Valid arguments are (.*)\\.\r\n$gdb_prompt $" {
+ set host_charset_list $expect_out(1,string)
+ regsub -all {, } $host_charset_list {,} host_charset_list
+ foreach host_charset [split $host_charset_list ","] {
+ set charsets($host_charset) 1
+ }
pass "capture valid host charsets"
}
-re ".*$gdb_prompt $" {
fail "capture valid host charsets"
}
+
timeout {
fail "(timeout) capture valid host charsets"
}
}
+# If gdb was built with a phony iconv, it will only have two character
+# sets: "auto" and the default. In this situation, this set of tests
+# is pointless.
+if {[llength [array names charsets]] < 3} {
+ untested "fewer than 3 charsets"
+ return -1
+}
send_gdb "set target-charset\n"
gdb_expect {
- -re "Requires an argument. Valid arguments are (\[^ \t\n\r,.\]*)" {
- set target_charset $expect_out(1,string)
- if {! [info exists charsets($target_charset)]} {
- set charsets($target_charset) 0
- }
- exp_continue
- }
-
- -re ", (\[^ \t\n\r,.\]*)" {
- set target_charset $expect_out(1,string)
- if {! [info exists charsets($target_charset)]} {
- set charsets($target_charset) 0
+ -re "Requires an argument. Valid arguments are (.*)\\.\r\n$gdb_prompt $" {
+ set target_charset_list $expect_out(1,string)
+ regsub -all {, } $target_charset_list {,} target_charset_list
+ foreach target_charset [split $target_charset_list ","] {
+ if {! [info exists charsets($target_charset)]} {
+ set charsets($target_charset) 0
+ }
}
- exp_continue
- }
-
- -re "\\.\r\n$gdb_prompt $" {
pass "capture valid target charsets"
-
}
-re ".*$gdb_prompt $" {
}
}
-# Make sure that GDB supports every host/target charset combination.
-foreach host_charset [all_charset_names] {
+# We don't want to test all the charset names here, since that would
+# be too many combinations. We we pick a subset.
+set charset_subset {ASCII ISO-8859-1 EBCDIC-US IBM1047}
+foreach_with_prefix host_charset $charset_subset {
if {[valid_host_charset $host_charset]} {
set testname "try `set host-charset $host_charset'"
# Now try setting every possible target character set,
# given that host charset.
- foreach target_charset [all_charset_names] {
+ foreach target_charset $charset_subset {
+ if {![valid_target_charset $target_charset]} {
+ continue
+ }
set testname "try `set target-charset $target_charset'"
send_gdb "set target-charset $target_charset\n"
gdb_expect {
".*Breakpoint.* at .*" \
"set breakpoint after all strings have been initialized"
gdb_run_cmd
-gdb_expect {
- -re "Breakpoint.*all strings initialized.*$gdb_prompt $" {
- pass "run until all strings have been initialized"
- }
- -re "$gdb_prompt $" {
- fail "run until all strings have been initialized"
- }
- timeout {
- fail "run until all strings have been initialized (timeout)"
- }
+gdb_test "" "Breakpoint.*all strings initialized.*" "run until all strings have been initialized"
+
+# We only try the wide character tests on machines where the wchar_t
+# typedef in the test case has the right size.
+set wchar_size [get_sizeof wchar_t 99]
+set wchar_ok 0
+if {$wchar_size == 2} {
+ lappend charset_subset UTF-16
+ set wchar_ok 1
+} elseif {$wchar_size == 4} {
+ lappend charset_subset UTF-32
+ set wchar_ok 1
}
+gdb_test_no_output "set host-charset ASCII"
+foreach target_charset $charset_subset {
+ if {![valid_target_charset $target_charset]} {
+ continue
+ }
-gdb_test "set host-charset ASCII" ""
-foreach target_charset [all_charset_names] {
- send_gdb "set target-charset $target_charset\n"
- gdb_expect {
- -re "$gdb_prompt $" {
- pass "set target-charset $target_charset"
- }
- timeout {
- fail "set target-charset $target_charset (timeout)"
- }
+ if {$target_charset == "UTF-32" || $target_charset == "UTF-16"} {
+ set param target-wide-charset
+ set L L
+ } else {
+ set param target-charset
+ set L ""
}
+ gdb_test_no_output "set $param $target_charset"
# Try printing the null character. There seems to be a bug in
# gdb_test that requires us to use gdb_expect here.
- send_gdb "print '\\0'\n"
+ send_gdb "print $L'\\0'\n"
gdb_expect {
- -re "\\\$${decimal} = 0 '\\\\0'\[\r\n\]+$gdb_prompt $" {
+ -re "\\\$${decimal} = 0 $L'\\\\000'\[\r\n\]+$gdb_prompt $" {
pass "print the null character in ${target_charset}"
}
-re "$gdb_prompt $" {
# a string in $target_charset. The variable's name is the
# character set's name, in lower-case, with all non-identifier
# characters replaced with '_', with "_string" stuck on the end.
- set var_name [string tolower "${target_charset}_string"]
- regsub -all -- "\[^a-z0-9_\]" $var_name "_" var_name
+ if {$target_charset == "UTF-16"} {
+ # We still use the utf_32_string variable -- but the size is
+ # correct for UTF-16.
+ set var_name utf_32_string
+ } else {
+ set var_name [string tolower "${target_charset}_string"]
+ regsub -all -- "\[^a-z0-9_\]" $var_name "_" var_name
+ }
# Compute a regexp matching the results we expect. This is static,
# but it's easier than writing it out.
set uppercase "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
set lowercase "abcdefghijklmnopqrstuvwxyz"
set digits "0123456789"
- set octal_escape "\\\\\[0-9\]\[0-9\]\[0-9\]"
+ set octal_escape "\\\\\[0-9\]+"
send_gdb "print $var_name\n"
# ${escapes}${uppercase}${lowercase}${digits}${octal}${octal}
gdb_expect {
- -re ".* = \"(\\\\a|x)(\\\\b|x)(\\\\f|x)(\\\\n|x)(\\\\r|x)(\\\\t|x)(\\\\v|x)${uppercase}${lowercase}${digits}(\\\\\[0-9\]\[0-9\]\[0-9\]|x)(\\\\\[0-9\]\[0-9\]\[0-9\]|x).*\"\[\r\n\]+$gdb_prompt $" {
+ -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 $" {
pass "print string in $target_charset"
}
-re "$gdb_prompt $" {
}
# Try entering a character literal, and see if it comes back unchanged.
- gdb_test "print 'A'" \
- " = \[0-9-\]+ 'A'" \
+ gdb_test "print $L'A'" \
+ " = \[0-9-\]+ $L'A'" \
"parse character literal in ${target_charset}"
# Check that the character literal was encoded correctly.
- gdb_test "print 'A' == $var_name\[7\]" \
+ gdb_test "print $L'A' == $var_name\[7\]" \
" = 1" \
"check value of parsed character literal in ${target_charset}"
# Try entering a string literal, and see if it comes back unchanged.
- gdb_test "print \"abcdefABCDEF012345\"" \
- " = \"abcdefABCDEF012345\"" \
+ gdb_test "print $L\"abcdefABCDEF012345\"" \
+ " = $L\"abcdefABCDEF012345\"" \
"parse string literal in ${target_charset}"
# Check that the string literal was encoded correctly.
- gdb_test "print \"q\"\[0\] == $var_name\[49\]" \
+ gdb_test "print $L\"q\"\[0\] == $var_name\[49\]" \
" = 1" \
"check value of parsed string literal in ${target_charset}"
send_gdb "print $var_name\[$i\]\n"
set have_escape 1
gdb_expect {
- -re "= \[0-9-\]+ '\\\\${escape}'\[\r\n\]+$gdb_prompt $" {
+ -re "= \[0-9-\]+ $L'\\\\${escape}'\[\r\n\]+$gdb_prompt $" {
pass "try printing '\\${escape}' in ${target_charset}"
}
-re "= \[0-9-\]+ 'x'\[\r\n\]+$gdb_prompt $" {
if {$have_escape} {
# Try parsing a backslash escape in a character literal.
- gdb_test "print '\\${escape}' == $var_name\[$i\]" \
+ gdb_test "print $L'\\${escape}' == $var_name\[$i\]" \
" = 1" \
"check value of '\\${escape}' in ${target_charset}"
# Try parsing a backslash escape in a string literal.
- gdb_test "print \"\\${escape}\"\[0\] == $var_name\[$i\]" \
+ gdb_test "print $L\"\\${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 '\\q'" " = \[0-9-\]+ 'q'" \
+ gdb_test "print $L'\\q'" " = \[0-9-\]+ $L'q'" \
"print escape that doesn't exist in $target_charset"
- gdb_test "print '\\q' == $var_name\[49\]" " = 1" \
+ gdb_test "print $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 '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