[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.base / charset.exp

# This testcase is part of GDB, the GNU debugger.

# Copyright 2001, 2004 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
# (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.  

# 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

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}"
    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 $" {
            set host_charset $expect_out(1,string)
            set target_charset $expect_out(2,string)
	    set retlist [list $host_charset $target_charset]
            pass $testname
        }
        -re "The host character set is \"(.*)\"\\.\[\r\n\]+$gdb_prompt $" {
            set host_charset $expect_out(1,string)
	    set retlist [list $host_charset]
            pass $testname
        }
        -re "The target character set is \"(.*)\"\\.\[\r\n\]+$gdb_prompt $" {
            set target_charset $expect_out(1,string)
	    set retlist [list $target_charset]
            pass $testname
        }
        -re ".*$gdb_prompt $" {
            fail $testname
        }
        timeout {
            fail "$testname (timeout)"
        }
    }

    return $retlist
}


# 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.

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"]

if {[lsearch $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"]

if {[lsearch $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.*" \
         "try malformed `set charset'"

# Try using `set host-charset' on an invalid character set.
gdb_test "set host-charset my_grandma_bonnie" \
         "Undefined item: \"my_grandma_bonnie\"." \
         "try `set host-charset' with invalid charset"

# Try using `set target-charset' on an invalid character set.
gdb_test "set target-charset my_grandma_bonnie" \
         "Undefined item: \"my_grandma_bonnie\"." \
         "try `set target-charset' with invalid charset"

# A Tcl array mapping the names of all the character sets we've seen
# to "1" if the character set can be used as a host character set, or
# "0" otherwise.  We can use `array names charsets' just to get a list
# of all character sets.
array set charsets {}

proc all_charset_names {} {
    global charsets
    return [array names charsets]
}

proc valid_host_charset {charset} {
    global charsets
    return $charsets($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)
	pass "capture valid host charsets"
    }

    -re ".*$gdb_prompt $" {
	fail "capture valid host charsets"
    }
    timeout {
	fail "(timeout) capture valid host charsets"
    }
}


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
	}
	exp_continue
    }

    -re "\\.\r\n$gdb_prompt $" {
	pass "capture valid target charsets"

    }

    -re ".*$gdb_prompt $" {
	fail "capture valid target charsets"
    }

    timeout {
	fail "(timeout) capture valid target charsets"
    }
}

# Make sure that GDB supports every host/target charset combination.
foreach host_charset [all_charset_names] {
    if {[valid_host_charset $host_charset]} {

        set testname "try `set host-charset $host_charset'"
        send_gdb "set host-charset $host_charset\n"
        gdb_expect {
            -re "GDB doesn't know of any character set named.*\[\r\n]+${gdb_prompt} $" {
                # How did it get into `charsets' then?
                fail "$testname (didn't recognize name)"
            }
            -re "GDB can't use `.*' as its host character set\\.\[\r\n]+${gdb_prompt} $" {
                # Well, then why does its `charsets' entry say it can?
                fail $testname
            }
            -re "${gdb_prompt} $" {
                pass $testname
            }
            timeout {
                fail "$testname (timeout)"
            }
        }

        # Check that the command actually had its intended effect:
        # $host_charset should now be the host character set.
        send_gdb "show charset\n"
        set result [parse_show_charset_output "parse `show charset' after `set host-charset $host_charset'"]
        if {! [string compare [lindex $result 0] $host_charset]} {
            pass "check effect of `set host-charset $host_charset'"
        } else {
            fail "check effect of `set host-charset $host_charset'"
        }

        # Now try setting every possible target character set,
        # given that host charset.
        foreach target_charset [all_charset_names] {
            set testname "try `set target-charset $target_charset'"
            send_gdb "set target-charset $target_charset\n"
            gdb_expect {
                -re "GDB doesn't know of any character set named.*\[\r\n]+${gdb_prompt} $" {
                    fail "$testname (didn't recognize name)"
                }
                -re "GDB can't convert from the .* character set to .*\\.\[\r\n\]+${gdb_prompt} $" {
                    # This is a serious problem.  GDB should be able to convert
                    # between any arbitrary pair of character sets.
                    fail "$testname (can't convert)"
                }
                -re "${gdb_prompt} $" {
                    pass $testname
                }
                timeout {
                    fail "$testname (timeout)"
                }
            }

            # Check that the command actually had its intended effect:
            # $target_charset should now be the target charset.
            send_gdb "show charset\n"
            set result [parse_show_charset_output "parse `show charset' after `set target-charset $target_charset'"]
            if {! [string compare $result [list $host_charset $target_charset]]} {
                pass "check effect of `set target-charset $target_charset'"
            } else {
                fail "check effect of `set target-charset $target_charset'"
            }

            # Test handling of characters in the host charset which
            # can't be translated into the target charset.  \xA2 is
            # `cent' in ISO-8859-1, which has no equivalent in ASCII.
            #
            # On some systems, the pseudo-tty through which we
            # communicate with GDB insists on stripping the high bit
            # from input characters, meaning that `cent' turns into
            # `"'.  Since ISO-8859-1 and ASCII are identical in the
            # lower 128 characters, it's tough to see how we can test
            # this behavior on such systems, so we just xfail it.
	    #
	    # Note: the \x16 (Control-V) is an escape to allow \xA2 to
	    # get past readline.
            if {! [string compare $host_charset iso-8859-1] && ! [string compare $target_charset ascii]} {

                set testname "untranslatable character in character literal"
                send_gdb "print '\x16\xA2'\n"
                gdb_expect {
                    -re "There is no character corresponding to .* in the target character set .*\\.\[\r\n\]+$gdb_prompt $" {
                        pass $testname
                    }
                    -re " = 34 '\"'\[\r\n\]+$gdb_prompt $" {
                        xfail "$testname (DejaGNU's pseudo-tty strips eighth bit)"
                    }
                    -re "$gdb_prompt $" {
                        fail $testname
                    }
                    timeout {
                        fail "$testname (timeout)"
                    }
                }

                set testname "untranslatable character in string literal"
                # If the PTTY zeros bit seven, then this turns into
                #   print """
                # which gets us a syntax error.  We don't care.
                send_gdb "print \"\x16\xA2\"\n"
                gdb_expect {
                    -re "There is no character corresponding to .* in the target character set .*\\.\[\r\n\]+$gdb_prompt $" {
                        pass $testname
                    }
                    -re "Unterminated string in expression.\[\r\n\]+$gdb_prompt $" {
                        xfail "$testname (DejaGNU's pseudo-tty strips eighth bit)"
                    }
                    -re "$gdb_prompt $" {
                        fail $testname
                    }
                    timeout {
                        fail "$testname (timeout)"
                    }
                }

                set testname "untranslatable characters in backslash escape"
                send_gdb "print '\\\x16\xA2'\n"
                gdb_expect {
                    -re "The escape sequence .* is equivalent to plain .*, which has no equivalent\[\r\n\]+in the .* character set\\.\[\r\n\]+$gdb_prompt $" {
                        pass $testname
                    }
                    -re " = 34 '\"'\[\r\n\]+$gdb_prompt $" {
                        xfail "$testname (DejaGNU's pseudo-tty strips eighth bit)"
                    }
                    -re "$gdb_prompt $" {
                        fail $testname
                    }
                    timeout {
                        fail "$testname (timeout)"
                    }
                }
            }
        }
    }
}


# Set the host character set to plain ASCII, and try actually printing
# some strings in various target character sets.  We need to run the
# test program to the point at which the strings have been
# initialized.
gdb_test "break [gdb_get_line_number "all strings initialized"]" \
         ".*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 "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)"
        }
    }

    # 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"
    gdb_expect {
        -re "\\\$${decimal} = 0 '\\\\0'\[\r\n\]+$gdb_prompt $" {
            pass "print the null character in ${target_charset}"
        }
        -re "$gdb_prompt $" {
            fail "print the null character in ${target_charset}"
        }
        timeout {
            fail "print the null character in ${target_charset} (timeout)"
        }
    }

    # Compute the name of the variable in the test program that holds
    # 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
    
    # Compute a regexp matching the results we expect.  This is static,
    # but it's easier than writing it out.
    regsub -all "." "abfnrtv" "(\\\\&|x)" escapes
    set uppercase "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    set lowercase "abcdefghijklmnopqrstuvwxyz"
    set digits "0123456789"
    set octal_escape "\\\\\[0-9\]\[0-9\]\[0-9\]"

    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 $" {
            pass "print string in $target_charset"
        }
        -re "$gdb_prompt $" {
            fail "print string in $target_charset"
        }
        timeout {
            fail "print string in $target_charset (timeout)"
        }
    }

    # Try entering a character literal, and see if it comes back unchanged.
    gdb_test "print 'A'" \
             " = \[0-9-\]+ 'A'" \
             "parse character literal in ${target_charset}"

    # Check that the character literal was encoded correctly.
    gdb_test "print '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\"" \
             "parse string literal in ${target_charset}"

    # Check that the string literal was encoded correctly.
    gdb_test "print \"q\"\[0\] == $var_name\[49\]" \
             " = 1" \
             "check value of parsed string literal in ${target_charset}"

    # Test handling of characters in the target charset which
    # can't be translated into the host charset.
    if {! [string compare $target_charset iso-8859-1]} {
        gdb_test "print iso_8859_1_string\[69\]" \
                 " = \[0-9-\]+ '\\\\242'" \
                 "print character with no equivalent in host character set"
        gdb_test "print iso_8859_1_string + 70" \
                 " = ${hex} \"\\\\242.*\"" \
                 "print string with no equivalent in host character set"
    }

    # Make sure that we don't apply the ISO-8859-1 `print_literally'
    # function to ASCII.
    if {! [string compare $target_charset ascii]} {
        gdb_test "print iso_8859_1_string\[69\]" \
                 " = \[0-9-\]+ '\\\\242'" \
                 "print ASCII unprintable character"
        gdb_test "print iso_8859_1_string + 70" \
                 " = ${hex} \"\\\\242.*\"" \
                 "print ASCII unprintable string"
    }

    # Try printing characters with backslash escape equivalents.
    set escapees {a b f n r t v}
    for {set i 0} {$i < [llength $escapees]} {incr i} {
        set escape [lindex $escapees $i]
        send_gdb "print $var_name\[$i\]\n"
        set have_escape 1
        gdb_expect {
            -re "= \[0-9-\]+ '\\\\${escape}'\[\r\n\]+$gdb_prompt $" {
                pass "try printing '\\${escape}' in ${target_charset}"
            }
            -re "= \[0-9-\]+ 'x'\[\r\n\]+$gdb_prompt $" {
                xfail "try printing '\\${escape}' in ${target_charset} (no such escape)"
                set have_escape 0
            }
            -re "$gdb_prompt $" {
                fail "try printing '\\${escape}' in ${target_charset}"
            }
            timeout {
                fail "try printing '\\${escape}' in ${target_charset} (timeout)"
            }
        }

        if {$have_escape} {

            # Try parsing a backslash escape in a character literal.
            gdb_test "print '\\${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\[$i\]" \
                     " = 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'" \
             "print escape that doesn't exist in $target_charset"
    gdb_test "print '\\q' == $var_name\[49\]" " = 1" \
             "check value of escape that doesn't exist in $target_charset"
}

gdb_exit
Commit	Line	Data
0dcd613f AC	1	# This testcase is part of GDB, the GNU debugger.
	2
	3	# Copyright 2001, 2004 Free Software Foundation, Inc.
dea97812 KB	4
	5	# This program is free software; you can redistribute it and/or modify
	6	# it under the terms of the GNU General Public License as published by
	7	# the Free Software Foundation; either version 2 of the License, or
	8	# (at your option) any later version.
	9	#
	10	# This program is distributed in the hope that it will be useful,
	11	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	# GNU General Public License for more details.
	14	#
	15	# You should have received a copy of the GNU General Public License
	16	# along with this program; if not, write to the Free Software
	17	# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	18
	19	# Please email any bugs, comments, and/or additions to this file to:
0dcd613f	20	# bug-gdb@gnu.org
dea97812 KB	21
	22	# Test GDB's character set support.
	23
	24	if $tracelevel then {
	25	strace $tracelevel
	26	}
	27
	28	set prms_id 0
	29	set bug_id 0
	30
	31	set testfile "charset"
	32	set srcfile ${testfile}.c
	33	set binfile ${objdir}/${subdir}/${testfile}
	34	if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
f21565d2 JB	35	untested "couldn't compile ${srcdir}/${subdir}/${srcfile}"
f21565d2 JB	36	return -1
dea97812 KB	37	}
	38
	39	# Start with a fresh gdb.
	40	gdb_exit
	41	gdb_start
	42	gdb_reinitialize_dir $srcdir/$subdir
	43	gdb_load ${binfile}
	44
	45	# Parse the output from a `show charset' command. Return the host
	46	# and target charset as a two-element list.
	47	proc parse_show_charset_output {testname} {
	48	global gdb_prompt
	49
	50	gdb_expect {
	51	-re "The current host and target character set is `(.*)'\\.\[\r\n\]+$gdb_prompt $" {
	52	set host_charset $expect_out(1,string)
	53	set target_charset $expect_out(1,string)
e33d66ec	54	set retlist [list $host_charset $target_charset]
dea97812 KB	55	pass $testname
	56	}
	57	-re "The current host character set is `(.)'\\.\[\r\n\]+The current target character set is `(.)'\\.\[\r\n\]+$gdb_prompt $" {
	58	set host_charset $expect_out(1,string)
	59	set target_charset $expect_out(2,string)
e33d66ec EZ	60	set retlist [list $host_charset $target_charset]
	61	pass $testname
	62	}
	63	-re "The host character set is \"(.*)\"\\.\[\r\n\]+$gdb_prompt $" {
	64	set host_charset $expect_out(1,string)
	65	set retlist [list $host_charset]
	66	pass $testname
	67	}
	68	-re "The target character set is \"(.*)\"\\.\[\r\n\]+$gdb_prompt $" {
	69	set target_charset $expect_out(1,string)
	70	set retlist [list $target_charset]
dea97812 KB	71	pass $testname
	72	}
	73	-re ".*$gdb_prompt $" {
	74	fail $testname
	75	}
	76	timeout {
	77	fail "$testname (timeout)"
	78	}
	79	}
	80
e33d66ec	81	return $retlist
dea97812 KB	82	}
	83
	84
	85	# Try the various `show charset' commands. These are all aliases of each
	86	# other; `show target-charset' and `show host-charset' actually print
	87	# both the host and target charsets.
	88
	89	send_gdb "show charset\n"
	90	set show_charset [parse_show_charset_output "show charset"]
	91
	92	send_gdb "show target-charset\n"
	93	set show_target_charset [parse_show_charset_output "show target-charset"]
	94
e33d66ec	95	if {[lsearch $show_charset $show_target_charset] >= 0} {
dea97812 KB	96	pass "check `show target-charset' against `show charset'"
	97	} else {
	98	fail "check `show target-charset' against `show charset'"
	99	}
	100
	101	send_gdb "show host-charset\n"
	102	set show_host_charset [parse_show_charset_output "show host-charset"]
	103
e33d66ec	104	if {[lsearch $show_charset $show_host_charset] >= 0} {
dea97812 KB	105	pass "check `show host-charset' against `show charset'"
	106	} else {
	107	fail "check `show host-charset' against `show charset'"
	108	}
	109
	110
e33d66ec EZ	111	# Get the list of supported (host) charsets as possible completions.
e33d66ec EZ	112	send_gdb "set charset \t\t"
dea97812	113
e33d66ec EZ	114	# Check that we can at least use ASCII as a host character set.
	115	sleep 1
	116	gdb_expect {
	117	-re "^set charset .\r\nASCII.\r\n$gdb_prompt set charset " {
	118	# We got the output that we wanted, including ASCII as possible
	119	# charset. Send a newline to get us back to the prompt. This will
	120	# also generate an error message. Let's not check here that the error
	121	# message makes sense, we do that below, as a separate testcase.
	122	send_gdb "\n"
	123	gdb_expect {
	124	-re ".Requires an argument.$gdb_prompt $" {
	125	pass "get valid character sets"
	126	}
	127	-re ".*$gdb_prompt $" {
	128	send_gdb "\n"
	129	gdb_expect {
	130	-re ".*$gdb_prompt $" {
	131	fail "get valid character sets"
	132	}
	133	}
	134	}
	135	timeout {
	136	fail "(timeout) get valid character sets"
	137	}
	138	}
	139	}
	140	-re ".*$gdb_prompt $" {
	141	# We got some output that ended with a regular prompt
	142	fail "get valid character sets"
	143	}
1b413552	144	-re ".$gdb_prompt set charset.$" {
e33d66ec EZ	145	# We got some other output, send a cntrl-c to gdb to get us back
	146	# to the prompt.
	147	send_gdb "\003"
	148	fail "get valid character sets"
	149	}
	150	timeout {
	151	fail "get valid character sets (timeout)"
	152	}
	153	}
	154
	155	# Try a malformed `set charset'.
	156	gdb_test "set charset" \
	157	"Requires an argument. Valid arguments are.*" \
	158	"try malformed `set charset'"
	159
	160	# Try using `set host-charset' on an invalid character set.
	161	gdb_test "set host-charset my_grandma_bonnie" \
	162	"Undefined item: \"my_grandma_bonnie\"." \
	163	"try `set host-charset' with invalid charset"
dea97812	164
e33d66ec EZ	165	# Try using `set target-charset' on an invalid character set.
	166	gdb_test "set target-charset my_grandma_bonnie" \
	167	"Undefined item: \"my_grandma_bonnie\"." \
	168	"try `set target-charset' with invalid charset"
dea97812 KB	169
	170	# A Tcl array mapping the names of all the character sets we've seen
	171	# to "1" if the character set can be used as a host character set, or
	172	# "0" otherwise. We can use `array names charsets' just to get a list
	173	# of all character sets.
	174	array set charsets {}
	175
	176	proc all_charset_names {} {
	177	global charsets
	178	return [array names charsets]
	179	}
	180
dea97812 KB	181	proc valid_host_charset {charset} {
	182	global charsets
	183	return $charsets($charset)
	184	}
	185
e33d66ec	186	send_gdb "set host-charset\n"
dea97812	187	gdb_expect {
e33d66ec EZ	188	-re "Requires an argument. Valid arguments are (\[^ \t\n\r,.\]*)" {
	189	#set host_charset_list $expect_out(1,string)
	190	set charsets($expect_out(1,string)) 1
	191	exp_continue
	192	#pass "capture valid host charsets"
dea97812	193	}
e33d66ec EZ	194
	195	-re ", (\[^ \t\n\r,.\]*)" {
	196	#set host_charset_list $expect_out(1,string)
	197	set charsets($expect_out(1,string)) 1
	198	exp_continue
	199	#pass "capture valid host charsets"
dea97812	200	}
e33d66ec EZ	201
	202	-re "\\.\r\n$gdb_prompt $" {
	203	#set host_charset_list $expect_out(1,string)
e33d66ec	204	pass "capture valid host charsets"
dea97812	205	}
e33d66ec EZ	206
	207	-re ".*$gdb_prompt $" {
	208	fail "capture valid host charsets"
dea97812 KB	209	}
dea97812 KB	210	timeout {
e33d66ec	211	fail "(timeout) capture valid host charsets"
dea97812 KB	212	}
	213	}
	214
	215
e33d66ec EZ	216	send_gdb "set target-charset\n"
	217	gdb_expect {
	218	-re "Requires an argument. Valid arguments are (\[^ \t\n\r,.\]*)" {
	219	set target_charset $expect_out(1,string)
	220	if {! [info exists charsets($target_charset)]} {
	221	set charsets($target_charset) 0
	222	}
	223	exp_continue
dea97812	224	}
dea97812	225
e33d66ec EZ	226	-re ", (\[^ \t\n\r,.\]*)" {
	227	set target_charset $expect_out(1,string)
	228	if {! [info exists charsets($target_charset)]} {
	229	set charsets($target_charset) 0
	230	}
	231	exp_continue
	232	}
dea97812	233
e33d66ec EZ	234	-re "\\.\r\n$gdb_prompt $" {
e33d66ec EZ	235	pass "capture valid target charsets"
dea97812	236
e33d66ec	237	}
dea97812	238
e33d66ec EZ	239	-re ".*$gdb_prompt $" {
	240	fail "capture valid target charsets"
	241	}
dea97812	242
e33d66ec EZ	243	timeout {
	244	fail "(timeout) capture valid target charsets"
	245	}
	246	}
dea97812 KB	247
	248	# Make sure that GDB supports every host/target charset combination.
	249	foreach host_charset [all_charset_names] {
	250	if {[valid_host_charset $host_charset]} {
	251
	252	set testname "try `set host-charset $host_charset'"
	253	send_gdb "set host-charset $host_charset\n"
	254	gdb_expect {
	255	-re "GDB doesn't know of any character set named.*\[\r\n]+${gdb_prompt} $" {
	256	# How did it get into `charsets' then?
	257	fail "$testname (didn't recognize name)"
	258	}
	259	-re "GDB can't use `.*' as its host character set\\.\[\r\n]+${gdb_prompt} $" {
	260	# Well, then why does its `charsets' entry say it can?
	261	fail $testname
	262	}
	263	-re "${gdb_prompt} $" {
	264	pass $testname
	265	}
	266	timeout {
	267	fail "$testname (timeout)"
	268	}
	269	}
	270
	271	# Check that the command actually had its intended effect:
	272	# $host_charset should now be the host character set.
	273	send_gdb "show charset\n"
	274	set result [parse_show_charset_output "parse `show charset' after `set host-charset $host_charset'"]
	275	if {! [string compare [lindex $result 0] $host_charset]} {
	276	pass "check effect of `set host-charset $host_charset'"
	277	} else {
	278	fail "check effect of `set host-charset $host_charset'"
	279	}
	280
	281	# Now try setting every possible target character set,
	282	# given that host charset.
	283	foreach target_charset [all_charset_names] {
	284	set testname "try `set target-charset $target_charset'"
	285	send_gdb "set target-charset $target_charset\n"
	286	gdb_expect {
	287	-re "GDB doesn't know of any character set named.*\[\r\n]+${gdb_prompt} $" {
	288	fail "$testname (didn't recognize name)"
	289	}
	290	-re "GDB can't convert from the .* character set to .*\\.\[\r\n\]+${gdb_prompt} $" {
	291	# This is a serious problem. GDB should be able to convert
	292	# between any arbitrary pair of character sets.
	293	fail "$testname (can't convert)"
	294	}
	295	-re "${gdb_prompt} $" {
	296	pass $testname
	297	}
	298	timeout {
	299	fail "$testname (timeout)"
	300	}
	301	}
	302
	303	# Check that the command actually had its intended effect:
	304	# $target_charset should now be the target charset.
	305	send_gdb "show charset\n"
	306	set result [parse_show_charset_output "parse `show charset' after `set target-charset $target_charset'"]
	307	if {! [string compare $result [list $host_charset $target_charset]]} {
	308	pass "check effect of `set target-charset $target_charset'"
	309	} else {
	310	fail "check effect of `set target-charset $target_charset'"
311	}
312
313	# Test handling of characters in the host charset which
314	# can't be translated into the target charset. \xA2 is
315	# `cent' in ISO-8859-1, which has no equivalent in ASCII.
316	#
317	# On some systems, the pseudo-tty through which we
318	# communicate with GDB insists on stripping the high bit
319	# from input characters, meaning that `cent' turns into
320	# `"'. Since ISO-8859-1 and ASCII are identical in the
321	# lower 128 characters, it's tough to see how we can test
322	# this behavior on such systems, so we just xfail it.
323	#
324	# Note: the \x16 (Control-V) is an escape to allow \xA2 to
325	# get past readline.
326	if {! [string compare $host_charset iso-8859-1] && ! [string compare $target_charset ascii]} {
327
328	set testname "untranslatable character in character literal"
329	send_gdb "print '\x16\xA2'\n"
330	gdb_expect {
331	-re "There is no character corresponding to .* in the target character set .*\\.\[\r\n\]+$gdb_prompt $" {
332	pass $testname
333	}
334	-re " = 34 '\"'\[\r\n\]+$gdb_prompt $" {
335	xfail "$testname (DejaGNU's pseudo-tty strips eighth bit)"
336	}
337	-re "$gdb_prompt $" {
338	fail $testname
339	}
340	timeout {
341	fail "$testname (timeout)"
342	}
343	}
344
345	set testname "untranslatable character in string literal"
346	# If the PTTY zeros bit seven, then this turns into
347	# print """
348	# which gets us a syntax error. We don't care.
349	send_gdb "print \"\x16\xA2\"\n"
350	gdb_expect {
351	-re "There is no character corresponding to .* in the target character set .*\\.\[\r\n\]+$gdb_prompt $" {
352	pass $testname
353	}
354	-re "Unterminated string in expression.\[\r\n\]+$gdb_prompt $" {
355	xfail "$testname (DejaGNU's pseudo-tty strips eighth bit)"
356	}
357	-re "$gdb_prompt $" {
358	fail $testname
359	}
360	timeout {
361	fail "$testname (timeout)"
362	}
363	}
364
365	set testname "untranslatable characters in backslash escape"
366	send_gdb "print '\\\x16\xA2'\n"
367	gdb_expect {
368	-re "The escape sequence .* is equivalent to plain ., which has no equivalent\[\r\n\]+in the . character set\\.\[\r\n\]+$gdb_prompt $" {
369	pass $testname
370	}
371	-re " = 34 '\"'\[\r\n\]+$gdb_prompt $" {
372	xfail "$testname (DejaGNU's pseudo-tty strips eighth bit)"
373	}
374	-re "$gdb_prompt $" {
375	fail $testname
376	}
377	timeout {
378	fail "$testname (timeout)"
379	}
380	}
381	}
382	}
383	}
384	}
385
386
387	# Set the host character set to plain ASCII, and try actually printing
388	# some strings in various target character sets. We need to run the
389	# test program to the point at which the strings have been
390	# initialized.
391	gdb_test "break [gdb_get_line_number "all strings initialized"]" \
392	".Breakpoint. at .*" \
393	"set breakpoint after all strings have been initialized"
394	gdb_run_cmd
395	gdb_expect {
396	-re "Breakpoint.all strings initialized.$gdb_prompt $" {
397	pass "run until all strings have been initialized"
398	}
399	-re "$gdb_prompt $" {
400	fail "run until all strings have been initialized"
401	}
402	timeout {
403	fail "run until all strings have been initialized (timeout)"
404	}
405	}
406
407
e33d66ec	408	gdb_test "set host-charset ASCII" ""
dea97812 KB	409	foreach target_charset [all_charset_names] {
	410	send_gdb "set target-charset $target_charset\n"
	411	gdb_expect {
	412	-re "$gdb_prompt $" {
	413	pass "set target-charset $target_charset"
	414	}
	415	timeout {
	416	fail "set target-charset $target_charset (timeout)"
	417	}
	418	}
	419
	420	# Try printing the null character. There seems to be a bug in
	421	# gdb_test that requires us to use gdb_expect here.
	422	send_gdb "print '\\0'\n"
	423	gdb_expect {
	424	-re "\\\$${decimal} = 0 '\\\\0'\[\r\n\]+$gdb_prompt $" {
	425	pass "print the null character in ${target_charset}"
	426	}
	427	-re "$gdb_prompt $" {
	428	fail "print the null character in ${target_charset}"
	429	}
	430	timeout {
	431	fail "print the null character in ${target_charset} (timeout)"
	432	}
	433	}
	434
	435	# Compute the name of the variable in the test program that holds
	436	# a string in $target_charset. The variable's name is the
	437	# character set's name, in lower-case, with all non-identifier
	438	# characters replaced with '_', with "_string" stuck on the end.
	439	set var_name [string tolower "${target_charset}_string"]
	440	regsub -all -- "\[^a-z0-9_\]" $var_name "_" var_name
	441
	442	# Compute a regexp matching the results we expect. This is static,
	443	# but it's easier than writing it out.
0dcd613f	444	regsub -all "." "abfnrtv" "(\\\\&\|x)" escapes
dea97812 KB	445	set uppercase "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
	446	set lowercase "abcdefghijklmnopqrstuvwxyz"
	447	set digits "0123456789"
	448	set octal_escape "\\\\\[0-9\]\[0-9\]\[0-9\]"
	449
	450	send_gdb "print $var_name\n"
	451	# ${escapes}${uppercase}${lowercase}${digits}${octal}${octal}
	452	gdb_expect {
0dcd613f	453	-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 $" {
dea97812 KB	454	pass "print string in $target_charset"
	455	}
	456	-re "$gdb_prompt $" {
	457	fail "print string in $target_charset"
	458	}
	459	timeout {
	460	fail "print string in $target_charset (timeout)"
	461	}
	462	}
	463
	464	# Try entering a character literal, and see if it comes back unchanged.
	465	gdb_test "print 'A'" \
	466	" = \[0-9-\]+ 'A'" \
	467	"parse character literal in ${target_charset}"
	468
	469	# Check that the character literal was encoded correctly.
0dcd613f	470	gdb_test "print 'A' == $var_name\[7\]" \
dea97812 KB	471	" = 1" \
	472	"check value of parsed character literal in ${target_charset}"
	473
	474	# Try entering a string literal, and see if it comes back unchanged.
	475	gdb_test "print \"abcdefABCDEF012345\"" \
	476	" = \"abcdefABCDEF012345\"" \
	477	"parse string literal in ${target_charset}"
	478
	479	# Check that the string literal was encoded correctly.
0dcd613f	480	gdb_test "print \"q\"\[0\] == $var_name\[49\]" \
dea97812 KB	481	" = 1" \
	482	"check value of parsed string literal in ${target_charset}"
	483
	484	# Test handling of characters in the target charset which
	485	# can't be translated into the host charset.
	486	if {! [string compare $target_charset iso-8859-1]} {
0dcd613f	487	gdb_test "print iso_8859_1_string\[69\]" \
dea97812 KB	488	" = \[0-9-\]+ '\\\\242'" \
	489	"print character with no equivalent in host character set"
	490	gdb_test "print iso_8859_1_string + 70" \
	491	" = ${hex} \"\\\\242.*\"" \
	492	"print string with no equivalent in host character set"
	493	}
	494
	495	# Make sure that we don't apply the ISO-8859-1 `print_literally'
	496	# function to ASCII.
	497	if {! [string compare $target_charset ascii]} {
0dcd613f	498	gdb_test "print iso_8859_1_string\[69\]" \
dea97812 KB	499	" = \[0-9-\]+ '\\\\242'" \
	500	"print ASCII unprintable character"
	501	gdb_test "print iso_8859_1_string + 70" \
	502	" = ${hex} \"\\\\242.*\"" \
	503	"print ASCII unprintable string"
	504	}
	505
	506	# Try printing characters with backslash escape equivalents.
0dcd613f	507	set escapees {a b f n r t v}
dea97812 KB	508	for {set i 0} {$i < [llength $escapees]} {incr i} {
	509	set escape [lindex $escapees $i]
	510	send_gdb "print $var_name\[$i\]\n"
	511	set have_escape 1
	512	gdb_expect {
	513	-re "= \[0-9-\]+ '\\\\${escape}'\[\r\n\]+$gdb_prompt $" {
	514	pass "try printing '\\${escape}' in ${target_charset}"
	515	}
	516	-re "= \[0-9-\]+ 'x'\[\r\n\]+$gdb_prompt $" {
	517	xfail "try printing '\\${escape}' in ${target_charset} (no such escape)"
	518	set have_escape 0
	519	}
	520	-re "$gdb_prompt $" {
	521	fail "try printing '\\${escape}' in ${target_charset}"
	522	}
	523	timeout {
	524	fail "try printing '\\${escape}' in ${target_charset} (timeout)"
	525	}
	526	}
	527
	528	if {$have_escape} {
	529
	530	# Try parsing a backslash escape in a character literal.
	531	gdb_test "print '\\${escape}' == $var_name\[$i\]" \
	532	" = 1" \
	533	"check value of '\\${escape}' in ${target_charset}"
	534
	535	# Try parsing a backslash escape in a string literal.
	536	gdb_test "print \"\\${escape}\"\[0\] == $var_name\[$i\]" \
	537	" = 1" \
	538	"check value of \"\\${escape}\" in ${target_charset}"
	539	}
	540	}
	541
	542	# Try printing a character escape that doesn't exist. We should
	543	# get the unescaped character, in the target character set.
	544	gdb_test "print '\\q'" " = \[0-9-\]+ 'q'" \
	545	"print escape that doesn't exist in $target_charset"
0dcd613f	546	gdb_test "print '\\q' == $var_name\[49\]" " = 1" \
dea97812 KB	547	"check value of escape that doesn't exist in $target_charset"
	548	}
	549
	550	gdb_exit